/* roulang page: index */
:root {
            --ky-primary: #2F6FED;
            --ky-primary-dark: #1E56C8;
            --ky-primary-light: #4A87F2;
            --ky-secondary-bg: #E8F0FE;
            --ky-tertiary-bg: #D9E3F5;
            --ky-page-bg: #F5F7FA;
            --ky-section-bg: #FFFFFF;
            --ky-section-alt-bg: #EAF1FD;
            --ky-text-dark: #14213D;
            --ky-text-body: #1F2937;
            --ky-text-muted: #5A6B85;
            --ky-accent: #F5A623;
            --ky-border: #E6EDF8;
            --ky-radius-sm: 10px;
            --ky-radius-md: 14px;
            --ky-radius-lg: 18px;
            --ky-shadow: 0 8px 24px rgba(31, 92, 222, 0.08);
            --ky-shadow-hover: 0 12px 32px rgba(31, 92, 222, 0.14);
            --ky-font-stack: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --ky-transition: all 0.25s ease;
            --ky-container-max: 1200px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--ky-font-stack);
            background-color: var(--ky-page-bg);
            color: var(--ky-text-body);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--ky-primary);
            text-decoration: none;
            transition: var(--ky-transition);
        }
        a:hover {
            color: var(--ky-primary-dark);
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--ky-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }

        .ky-container {
            max-width: var(--ky-container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ========== Navbar ========== */
        .ky-navbar {
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--ky-border);
            box-shadow: 0 2px 8px rgba(31, 92, 222, 0.04);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 0;
            min-height: 64px;
        }
        .ky-navbar .navbar-brand {
            font-weight: 700;
            font-size: 26px;
            color: var(--ky-text-dark);
            letter-spacing: 1px;
            transition: var(--ky-transition);
            white-space: nowrap;
        }
        .ky-navbar .navbar-brand:hover {
            color: var(--ky-primary);
        }
        .ky-navbar .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--ky-text-body);
            padding: 8px 14px;
            position: relative;
            white-space: nowrap;
            transition: var(--ky-transition);
        }
        .ky-navbar .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--ky-primary);
            border-radius: 1px;
            transform: scaleX(0);
            transition: transform 0.25s ease;
        }
        .ky-navbar .nav-link:hover,
        .ky-navbar .nav-link.active {
            color: var(--ky-primary);
        }
        .ky-navbar .nav-link:hover::after,
        .ky-navbar .nav-link.active::after {
            transform: scaleX(1);
        }
        .ky-navbar .navbar-toggler {
            border: 1px solid var(--ky-primary);
            border-radius: 8px;
            padding: 6px 10px;
            background: #fff;
        }
        .ky-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.15);
            outline: none;
        }
        .ky-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='%232F6FED' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .ky-navbar .navbar-collapse {
            justify-content: space-between;
        }
        .ky-nav-left,
        .ky-nav-right {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .ky-nav-center {
            padding: 0 18px;
        }

        /* ========== Breadcrumb ========== */
        .ky-breadcrumb {
            background: transparent;
            padding: 18px 0 0;
            font-size: 13px;
            color: var(--ky-text-muted);
            margin-bottom: 0;
        }
        .ky-breadcrumb .breadcrumb {
            margin-bottom: 0;
        }
        .ky-breadcrumb a {
            color: var(--ky-text-muted);
            font-weight: 500;
        }
        .ky-breadcrumb a:hover {
            color: var(--ky-primary);
        }
        .ky-breadcrumb .breadcrumb-item.active {
            color: var(--ky-primary);
            font-weight: 600;
        }

        /* ========== Hero ========== */
        .ky-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center center;
            min-height: 560px;
            display: flex;
            align-items: center;
            padding: 64px 0 72px;
            overflow: hidden;
        }
        .ky-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(245, 247, 250, 0.94) 0%, rgba(232, 240, 254, 0.88) 45%, rgba(217, 227, 245, 0.82) 100%);
            z-index: 1;
        }
        .ky-hero .ky-container {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .ky-hero-content {
            max-width: 780px;
        }
        .ky-hero-badge {
            display: inline-block;
            background: var(--ky-primary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 18px;
        }
        .ky-hero h1 {
            font-size: 38px;
            font-weight: 700;
            color: var(--ky-text-dark);
            line-height: 1.3;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .ky-hero-subtitle {
            font-size: 17px;
            color: var(--ky-text-muted);
            line-height: 1.85;
            margin-bottom: 28px;
            max-width: 660px;
        }
        .ky-hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 30px;
        }
        .ky-hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            padding-top: 18px;
            border-top: 1px solid rgba(47, 111, 237, 0.2);
        }
        .ky-hero-stat {
            text-align: left;
        }
        .ky-hero-stat-num {
            font-size: 26px;
            font-weight: 700;
            color: var(--ky-primary);
            line-height: 1.2;
        }
        .ky-hero-stat-label {
            font-size: 13px;
            color: var(--ky-text-muted);
            font-weight: 500;
        }
        .ky-hero-card {
            background: #fff;
            border-radius: var(--ky-radius-lg);
            box-shadow: 0 16px 40px rgba(31, 92, 222, 0.12);
            border: 1px solid var(--ky-border);
            overflow: hidden;
        }
        .ky-hero-card-img {
            height: 160px;
            overflow: hidden;
        }
        .ky-hero-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .ky-hero-card-body {
            padding: 20px 22px 22px;
        }
        .ky-hero-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 8px;
        }
        .ky-hero-card-desc {
            font-size: 14px;
            color: var(--ky-text-muted);
            margin-bottom: 16px;
        }
        .ky-hero-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--ky-text-muted);
            margin-bottom: 16px;
        }
        .ky-hero-card-btn {
            display: inline-block;
            background: var(--ky-primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 20px;
            border-radius: var(--ky-radius-sm);
            text-align: center;
            transition: var(--ky-transition);
        }
        .ky-hero-card-btn:hover {
            background: var(--ky-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(31, 92, 222, 0.3);
        }

        /* ========== Section Common ========== */
        .ky-section {
            padding: 72px 0;
        }
        .ky-section-alt {
            background: var(--ky-section-alt-bg);
        }
        .ky-section-white {
            background: var(--ky-section-bg);
        }
        .ky-section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }
        .ky-section-desc {
            font-size: 16px;
            color: var(--ky-text-muted);
            line-height: 1.85;
            max-width: 720px;
            margin-bottom: 36px;
        }
        .ky-badge {
            display: inline-block;
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }
        .ky-badge-accent {
            background: rgba(245, 166, 35, 0.15);
            color: #C7850D;
        }
        .ky-tag {
            display: inline-block;
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            font-size: 12px;
            font-weight: 500;
            padding: 3px 12px;
            border-radius: 16px;
            transition: var(--ky-transition);
            border: 1px solid transparent;
        }
        .ky-tag:hover {
            background: var(--ky-primary);
            color: #fff;
        }

        /* ========== Buttons ========== */
        .ky-btn {
            display: inline-block;
            font-weight: 600;
            font-size: 15px;
            padding: 11px 26px;
            border-radius: var(--ky-radius-sm);
            transition: var(--ky-transition);
            border: none;
            text-align: center;
            cursor: pointer;
        }
        .ky-btn-primary {
            background: var(--ky-primary);
            color: #fff;
        }
        .ky-btn-primary:hover {
            background: var(--ky-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(31, 92, 222, 0.3);
        }
        .ky-btn-outline {
            background: transparent;
            color: var(--ky-primary);
            border: 1.5px solid var(--ky-primary);
        }
        .ky-btn-outline:hover {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary-dark);
            border-color: var(--ky-primary-dark);
            transform: translateY(-2px);
        }
        .ky-btn-light {
            background: #fff;
            color: var(--ky-primary);
            border: 1.5px solid var(--ky-border);
        }
        .ky-btn-light:hover {
            background: var(--ky-secondary-bg);
            border-color: var(--ky-primary);
            transform: translateY(-2px);
        }
        .ky-btn-dark {
            background: var(--ky-text-dark);
            color: #fff;
        }
        .ky-btn-dark:hover {
            background: #0E1A30;
            color: #fff;
            transform: translateY(-2px);
        }
        .ky-btn-sm {
            padding: 8px 18px;
            font-size: 13px;
        }
        .ky-btn-lg {
            padding: 14px 32px;
            font-size: 16px;
        }
        .ky-btn-accent {
            background: var(--ky-accent);
            color: #fff;
        }
        .ky-btn-accent:hover {
            background: #D88F1B;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(245, 166, 35, 0.3);
        }

        /* ========== Sell Points Three ========== */
        .ky-points-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .ky-point-card {
            background: #fff;
            border-radius: var(--ky-radius-lg);
            padding: 28px 26px;
            border: 1px solid var(--ky-border);
            box-shadow: var(--ky-shadow);
            transition: var(--ky-transition);
            position: relative;
            overflow: hidden;
        }
        .ky-point-card:hover {
            box-shadow: var(--ky-shadow-hover);
            transform: translateY(-4px);
            border-color: var(--ky-primary);
        }
        .ky-point-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
        }
        .ky-point-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 10px;
        }
        .ky-point-card p {
            font-size: 14px;
            color: var(--ky-text-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }
        .ky-point-card .ky-tag {
            margin-top: 14px;
        }

        /* ========== Data / KPI ========== */
        .ky-kpi-panel {
            background: #fff;
            border-radius: var(--ky-radius-lg);
            padding: 36px 32px;
            border: 1px solid var(--ky-border);
            box-shadow: var(--ky-shadow);
        }
        .ky-kpi-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .ky-kpi-item {
            text-align: center;
            padding: 18px 12px;
            border-radius: var(--ky-radius-md);
            background: var(--ky-section-alt-bg);
            transition: var(--ky-transition);
        }
        .ky-kpi-item:hover {
            background: var(--ky-secondary-bg);
        }
        .ky-kpi-num {
            font-size: 34px;
            font-weight: 700;
            color: var(--ky-primary);
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .ky-kpi-label {
            font-size: 14px;
            color: var(--ky-text-muted);
            font-weight: 500;
            margin-top: 6px;
        }

        /* ========== Festival / Campaign Zone ========== */
        .ky-campaign {
            background: linear-gradient(135deg, #1A3D8F 0%, #2F6FED 45%, #4A87F2 100%);
            border-radius: var(--ky-radius-lg);
            padding: 44px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .ky-campaign::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
        }
        .ky-campaign::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 30%;
            width: 280px;
            height: 280px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
        }
        .ky-campaign h2 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
            position: relative;
            z-index: 2;
        }
        .ky-campaign p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.8;
            margin-bottom: 24px;
            max-width: 600px;
            position: relative;
            z-index: 2;
        }
        .ky-campaign-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 24px;
            position: relative;
            z-index: 2;
        }
        .ky-campaign-tag {
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 20px;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        .ky-campaign .ky-btn-accent {
            position: relative;
            z-index: 2;
        }

        /* ========== News / Info ========== */
        .ky-news-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 28px;
        }
        .ky-news-list {
            background: #fff;
            border-radius: var(--ky-radius-lg);
            border: 1px solid var(--ky-border);
            box-shadow: var(--ky-shadow);
            overflow: hidden;
        }
        .ky-news-item {
            padding: 18px 22px;
            border-bottom: 1px solid var(--ky-border);
            transition: var(--ky-transition);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .ky-news-item:last-child {
            border-bottom: none;
        }
        .ky-news-item:hover {
            background: var(--ky-secondary-bg);
        }
        .ky-news-date {
            font-size: 12px;
            color: var(--ky-text-muted);
            font-weight: 500;
            white-space: nowrap;
            padding-top: 2px;
            min-width: 72px;
        }
        .ky-news-content {
            flex: 1;
        }
        .ky-news-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--ky-text-dark);
            margin-bottom: 6px;
            display: block;
            transition: var(--ky-transition);
        }
        .ky-news-title:hover {
            color: var(--ky-primary);
        }
        .ky-news-summary {
            font-size: 14px;
            color: var(--ky-text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .ky-news-side {
            background: #fff;
            border-radius: var(--ky-radius-lg);
            border: 1px solid var(--ky-border);
            box-shadow: var(--ky-shadow);
            padding: 24px 22px;
        }
        .ky-news-side h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 16px;
        }
        .ky-news-side-item {
            padding: 12px 0;
            border-bottom: 1px solid var(--ky-border);
        }
        .ky-news-side-item:last-child {
            border-bottom: none;
        }
        .ky-news-side-item a {
            font-size: 14px;
            font-weight: 500;
            color: var(--ky-text-body);
            display: block;
            line-height: 1.6;
        }
        .ky-news-side-item a:hover {
            color: var(--ky-primary);
        }
        .ky-news-side-item .ky-news-side-meta {
            font-size: 12px;
            color: var(--ky-text-muted);
            margin-top: 4px;
        }

        /* ========== Testimonials ========== */
        .ky-testi-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
        }
        .ky-testi-card {
            background: #fff;
            border-radius: var(--ky-radius-lg);
            padding: 26px 24px;
            border: 1px solid var(--ky-border);
            box-shadow: var(--ky-shadow);
            transition: var(--ky-transition);
        }
        .ky-testi-card:hover {
            box-shadow: var(--ky-shadow-hover);
            transform: translateY(-3px);
        }
        .ky-testi-head {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }
        .ky-testi-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            flex-shrink: 0;
        }
        .ky-testi-info h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--ky-text-dark);
            margin-bottom: 2px;
        }
        .ky-testi-info span {
            font-size: 13px;
            color: var(--ky-text-muted);
        }
        .ky-testi-stars {
            color: var(--ky-accent);
            font-size: 14px;
            margin-bottom: 10px;
            letter-spacing: 2px;
        }
        .ky-testi-text {
            font-size: 14px;
            color: var(--ky-text-body);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ========== Brand Intro ========== */
        .ky-brand-intro {
            background: #fff;
            border-radius: var(--ky-radius-lg);
            padding: 40px 36px;
            border: 1px solid var(--ky-border);
            box-shadow: var(--ky-shadow);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .ky-brand-intro-img {
            border-radius: var(--ky-radius-md);
            overflow: hidden;
            height: 260px;
        }
        .ky-brand-intro-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .ky-brand-intro h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 14px;
        }
        .ky-brand-intro p {
            font-size: 15px;
            color: var(--ky-text-muted);
            line-height: 1.85;
        }

        /* ========== FAQ ========== */
        .ky-faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .ky-accordion .accordion-item {
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            box-shadow: 0 2px 8px rgba(31, 92, 222, 0.04);
        }
        .ky-accordion .accordion-button {
            background: #fff;
            color: var(--ky-text-dark);
            font-weight: 600;
            font-size: 16px;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            border-radius: var(--ky-radius-md) !important;
            transition: var(--ky-transition);
        }
        .ky-accordion .accordion-button:not(.collapsed) {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            box-shadow: none;
        }
        .ky-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.15);
            outline: none;
            border: none;
        }
        .ky-accordion .accordion-button::after {
            background-size: 16px;
            background-color: transparent;
            width: 16px;
            height: 16px;
            filter: invert(38%) sepia(70%) saturate(1500%) hue-rotate(214deg);
        }
        .ky-accordion .accordion-body {
            padding: 16px 22px 20px;
            font-size: 14px;
            color: var(--ky-text-muted);
            line-height: 1.8;
            background: #fff;
        }

        /* ========== Partners / Capability Tags ========== */
        .ky-partners-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }
        .ky-partner-card {
            background: #fff;
            border-radius: var(--ky-radius-md);
            padding: 22px 20px;
            border: 1px solid var(--ky-border);
            transition: var(--ky-transition);
            text-align: center;
        }
        .ky-partner-card:hover {
            border-color: var(--ky-primary);
            box-shadow: var(--ky-shadow);
            transform: translateY(-2px);
        }
        .ky-partner-icon {
            font-size: 28px;
            color: var(--ky-primary);
            margin-bottom: 10px;
        }
        .ky-partner-card h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 6px;
        }
        .ky-partner-card p {
            font-size: 13px;
            color: var(--ky-text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ========== CTA ========== */
        .ky-cta-section {
            background: var(--ky-text-dark);
            padding: 64px 0;
            border-radius: 0;
        }
        .ky-cta-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .ky-cta-left h2 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .ky-cta-left p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .ky-cta-form {
            background: #fff;
            border-radius: var(--ky-radius-lg);
            padding: 30px 28px;
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
        }
        .ky-cta-form h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 16px;
        }
        .ky-form-input,
        .ky-form-textarea {
            width: 100%;
            border: 1.5px solid var(--ky-tertiary-bg);
            border-radius: 10px;
            padding: 10px 16px;
            font-size: 14px;
            font-family: var(--ky-font-stack);
            color: var(--ky-text-body);
            transition: var(--ky-transition);
            background: #fff;
        }
        .ky-form-input:focus,
        .ky-form-textarea:focus {
            border-color: var(--ky-primary);
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.15);
            outline: none;
        }
        .ky-form-input::placeholder,
        .ky-form-textarea::placeholder {
            color: #9AA7B8;
        }
        .ky-form-textarea {
            resize: vertical;
            min-height: 90px;
        }
        .ky-form-group {
            margin-bottom: 16px;
        }

        /* ========== Footer ========== */
        .ky-footer {
            background: #0F1C3F;
            color: #fff;
            padding: 56px 0 32px;
            font-size: 14px;
        }
        .ky-footer h5 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .ky-footer a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            transition: var(--ky-transition);
            display: inline-block;
            margin-bottom: 6px;
        }
        .ky-footer a:hover {
            color: var(--ky-primary-light);
        }
        .ky-footer-brand {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .ky-footer p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 13px;
            line-height: 1.7;
        }
        .ky-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 36px;
            padding-top: 22px;
            text-align: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
        }
        .ky-footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 12px;
            margin: 0 8px;
        }
        .ky-footer-bottom a:hover {
            color: var(--ky-primary-light);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .ky-hero h1 {
                font-size: 32px;
            }
            .ky-section {
                padding: 56px 0;
            }
            .ky-points-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .ky-kpi-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .ky-partners-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .ky-news-layout {
                grid-template-columns: 1fr;
            }
            .ky-cta-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .ky-brand-intro {
                grid-template-columns: 1fr;
            }
            .ky-brand-intro-img {
                height: 200px;
            }
        }

        @media (max-width: 768px) {
            .ky-navbar .navbar-brand {
                font-size: 22px;
            }
            .ky-navbar .nav-link {
                padding: 8px 12px;
                font-size: 13px;
            }
            .ky-hero {
                min-height: auto;
                padding: 48px 0 56px;
            }
            .ky-hero h1 {
                font-size: 28px;
            }
            .ky-hero-subtitle {
                font-size: 15px;
            }
            .ky-hero-card {
                margin-top: 28px;
            }
            .ky-section-title {
                font-size: 24px;
            }
            .ky-testi-grid {
                grid-template-columns: 1fr;
            }
            .ky-campaign {
                padding: 32px 24px;
            }
            .ky-campaign h2 {
                font-size: 22px;
            }
            .ky-points-grid {
                grid-template-columns: 1fr;
            }
            .ky-kpi-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .ky-kpi-num {
                font-size: 26px;
            }
            .ky-partners-grid {
                grid-template-columns: 1fr;
            }
            .ky-news-item {
                flex-direction: column;
                gap: 6px;
            }
            .ky-news-date {
                min-width: auto;
            }
            .ky-brand-intro {
                padding: 24px 20px;
            }
        }

        @media (max-width: 520px) {
            .ky-container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .ky-hero h1 {
                font-size: 24px;
            }
            .ky-hero-stats {
                gap: 16px;
                flex-wrap: wrap;
            }
            .ky-hero-stat-num {
                font-size: 20px;
            }
            .ky-section {
                padding: 40px 0;
            }
            .ky-section-title {
                font-size: 21px;
            }
            .ky-btn {
                padding: 9px 18px;
                font-size: 13px;
            }
            .ky-kpi-grid {
                grid-template-columns: 1fr;
            }
            .ky-cta-form {
                padding: 22px 18px;
            }
            .ky-footer {
                padding: 40px 0 24px;
            }
        }

        /* ========== Misc ========== */
        .ky-divider {
            height: 1px;
            background: var(--ky-border);
            margin: 28px 0;
        }
        .ky-text-center {
            text-align: center;
        }
        .ky-mb-0 {
            margin-bottom: 0;
        }
        .ky-mt-16 {
            margin-top: 16px;
        }
        .ky-mb-16 {
            margin-bottom: 16px;
        }
        .ky-mb-24 {
            margin-bottom: 24px;
        }
        .ky-mb-32 {
            margin-bottom: 32px;
        }
        .ky-gap-12 {
            gap: 12px;
        }
        .ky-flex-wrap {
            display: flex;
            flex-wrap: wrap;
        }

/* roulang page: category2 */
:root {
            --ky-primary: #2F6FED;
            --ky-primary-dark: #1E56C8;
            --ky-primary-light: #4A87F2;
            --ky-secondary-bg: #E8F0FE;
            --ky-tertiary-bg: #D9E3F5;
            --ky-page-bg: #F5F7FA;
            --ky-section-bg: #FFFFFF;
            --ky-section-alt-bg: #EAF1FD;
            --ky-text-dark: #14213D;
            --ky-text-body: #1F2937;
            --ky-text-muted: #5A6B85;
            --ky-accent: #F5A623;
            --ky-border: #E6EDF8;
            --ky-radius-sm: 10px;
            --ky-radius-md: 14px;
            --ky-radius-lg: 18px;
            --ky-shadow: 0 8px 24px rgba(31, 92, 222, 0.08);
            --ky-shadow-hover: 0 12px 32px rgba(31, 92, 222, 0.14);
            --ky-font-stack: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --ky-transition: all 0.25s ease;
            --ky-container-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--ky-font-stack);
            background-color: var(--ky-page-bg);
            color: var(--ky-text-body);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--ky-primary);
            text-decoration: none;
            transition: var(--ky-transition);
        }

        a:hover {
            color: var(--ky-primary-dark);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--ky-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .ky-container {
            max-width: var(--ky-container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ========== Navbar ========== */
        .ky-navbar {
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--ky-border);
            box-shadow: 0 2px 8px rgba(31, 92, 222, 0.04);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 0;
            min-height: 64px;
        }

        .ky-navbar .navbar-brand {
            font-weight: 700;
            font-size: 26px;
            color: var(--ky-text-dark);
            letter-spacing: 1px;
            transition: var(--ky-transition);
            white-space: nowrap;
        }

        .ky-navbar .navbar-brand:hover {
            color: var(--ky-primary);
        }

        .ky-navbar .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--ky-text-body);
            padding: 8px 14px;
            position: relative;
            white-space: nowrap;
            transition: var(--ky-transition);
        }

        .ky-navbar .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--ky-primary);
            border-radius: 1px;
            transform: scaleX(0);
            transition: transform 0.25s ease;
        }

        .ky-navbar .nav-link:hover,
        .ky-navbar .nav-link.active {
            color: var(--ky-primary);
        }

        .ky-navbar .nav-link:hover::after,
        .ky-navbar .nav-link.active::after {
            transform: scaleX(1);
        }

        .ky-navbar .navbar-toggler {
            border: 1px solid var(--ky-primary);
            border-radius: 8px;
            padding: 6px 10px;
            background: #fff;
        }

        .ky-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.15);
            outline: none;
        }

        .ky-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='%232F6FED' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .ky-navbar .navbar-collapse {
            justify-content: space-between;
        }

        .ky-nav-left,
        .ky-nav-right {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .ky-nav-center {
            padding: 0 18px;
        }

        .ky-breadcrumb {
            background: transparent;
            padding: 16px 0 0;
            margin: 0;
        }

        .ky-breadcrumb a {
            color: var(--ky-text-muted);
            font-weight: 500;
        }

        .ky-breadcrumb a:hover {
            color: var(--ky-primary);
        }

        .ky-breadcrumb .breadcrumb-item.active {
            color: var(--ky-primary);
            font-weight: 600;
        }

        .ky-breadcrumb .breadcrumb-item+.breadcrumb-item::before {
            color: var(--ky-tertiary-bg);
            content: '/';
        }

        /* ========== Page Header ========== */
        .ky-page-header {
            background: linear-gradient(135deg, #FFFFFF 0%, var(--ky-section-alt-bg) 100%);
            border-bottom: 1px solid var(--ky-border);
            padding: 40px 0 32px;
        }

        .ky-page-header .ky-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 24px;
        }

        .ky-page-header .ky-tag {
            display: inline-block;
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 20px;
            transition: var(--ky-transition);
            cursor: pointer;
            border: 1px solid transparent;
        }

        .ky-page-header .ky-tag:hover {
            background: var(--ky-primary);
            color: #fff;
            border-color: var(--ky-primary);
        }

        .ky-page-header h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--ky-text-dark);
            line-height: 1.35;
            margin-bottom: 14px;
        }

        .ky-page-header .ky-lead {
            font-size: 16px;
            color: var(--ky-text-muted);
            max-width: 820px;
            line-height: 1.8;
        }

        /* ========== Section Base ========== */
        .ky-section {
            padding: 60px 0;
        }

        .ky-section-alt {
            background: var(--ky-section-bg);
        }

        .ky-section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 12px;
        }

        .ky-section-desc {
            font-size: 15px;
            color: var(--ky-text-muted);
            max-width: 680px;
            line-height: 1.78;
            margin-bottom: 32px;
        }

        /* ========== Card Grid (2-col) ========== */
        .ky-card-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .ky-card {
            background: var(--ky-section-bg);
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-md);
            box-shadow: var(--ky-shadow);
            overflow: hidden;
            transition: var(--ky-transition);
            display: flex;
            flex-direction: column;
        }

        .ky-card:hover {
            box-shadow: var(--ky-shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(47, 111, 237, 0.25);
        }

        .ky-card .ky-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: var(--ky-secondary-bg);
        }

        .ky-card .ky-card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .ky-card .ky-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .ky-card .ky-card-text {
            font-size: 14px;
            color: var(--ky-text-muted);
            line-height: 1.72;
            flex: 1;
            margin-bottom: 14px;
        }

        .ky-card .ky-card-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px 16px;
            font-size: 12px;
            color: var(--ky-text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--ky-border);
        }

        .ky-card .ky-card-meta .ky-badge {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            font-size: 12px;
            font-weight: 500;
            padding: 3px 12px;
            border-radius: 12px;
            display: inline-block;
        }

        .ky-card .ky-card-meta .ky-meta-sep {
            color: var(--ky-tertiary-bg);
        }

        /* ========== Metrics ========== */
        .ky-metrics {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .ky-metric {
            background: var(--ky-section-bg);
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-md);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--ky-shadow);
            transition: var(--ky-transition);
        }

        .ky-metric:hover {
            box-shadow: var(--ky-shadow-hover);
            transform: translateY(-2px);
        }

        .ky-metric .ky-metric-num {
            font-size: 32px;
            font-weight: 700;
            color: var(--ky-primary);
            line-height: 1.3;
            margin-bottom: 6px;
        }

        .ky-metric .ky-metric-label {
            font-size: 13px;
            color: var(--ky-text-muted);
            line-height: 1.5;
        }

        /* ========== Scenario List ========== */
        .ky-scenario-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .ky-scenario-item {
            background: var(--ky-section-bg);
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-md);
            padding: 22px;
            box-shadow: var(--ky-shadow);
            transition: var(--ky-transition);
        }

        .ky-scenario-item:hover {
            box-shadow: var(--ky-shadow-hover);
            border-color: rgba(47, 111, 237, 0.2);
        }

        .ky-scenario-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 8px;
        }

        .ky-scenario-item p {
            font-size: 14px;
            color: var(--ky-text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ========== FAQ ========== */
        .ky-faq .accordion-item {
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--ky-shadow);
            background: var(--ky-section-bg);
        }

        .ky-faq .accordion-button {
            background: var(--ky-section-bg);
            color: var(--ky-text-dark);
            font-weight: 600;
            font-size: 16px;
            padding: 16px 20px;
            box-shadow: none;
            border-radius: 0;
        }

        .ky-faq .accordion-button:not(.collapsed) {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            box-shadow: none;
        }

        .ky-faq .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }

        .ky-faq .accordion-button::after {
            background-size: 16px;
            background-position: center;
            filter: invert(38%) sepia(95%) saturate(1800%) hue-rotate(210deg) brightness(96%) contrast(95%);
        }

        .ky-faq .accordion-body {
            font-size: 14px;
            color: var(--ky-text-muted);
            line-height: 1.78;
            padding: 16px 20px;
        }

        /* ========== CTA ========== */
        .ky-cta-section {
            background: linear-gradient(135deg, var(--ky-text-dark) 0%, #1A2F5E 100%);
            padding: 60px 0;
            border-radius: 0;
        }

        .ky-cta-section .ky-cta-title {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .ky-cta-section .ky-cta-desc {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            max-width: 640px;
            line-height: 1.72;
            margin-bottom: 28px;
        }

        .ky-btn-primary {
            background: var(--ky-primary);
            color: #fff;
            border: none;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--ky-radius-sm);
            transition: var(--ky-transition);
            display: inline-block;
        }

        .ky-btn-primary:hover {
            background: var(--ky-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(47, 111, 237, 0.35);
        }

        .ky-btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
            padding: 10px 26px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--ky-radius-sm);
            transition: var(--ky-transition);
            display: inline-block;
        }

        .ky-btn-outline:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        /* ========== Footer ========== */
        .ky-footer {
            background: #0F1C3F;
            color: #fff;
            padding: 50px 0 24px;
            margin-top: 0;
        }

        .ky-footer .ky-footer-brand {
            font-size: 22px;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 12px;
            color: #fff;
        }

        .ky-footer h5 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            color: #fff;
        }

        .ky-footer p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
        }

        .ky-footer a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            display: inline-block;
            padding: 4px 0;
            transition: var(--ky-transition);
        }

        .ky-footer a:hover {
            color: var(--ky-primary-light);
        }

        .ky-footer .ky-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            margin-top: 36px;
            padding-top: 18px;
            text-align: center;
        }

        .ky-footer .ky-footer-bottom p {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 4px;
        }

        .ky-footer .ky-footer-bottom a {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
        }

        /* ========== Responsive ========== */
        @media (max-width: 991.98px) {
            .ky-navbar .navbar-collapse {
                background: #fff;
                border-radius: 0 0 12px 12px;
                padding: 16px 20px;
                box-shadow: 0 8px 24px rgba(31, 92, 222, 0.1);
                margin-top: 0;
            }

            .ky-navbar .ky-nav-left,
            .ky-navbar .ky-nav-right {
                flex-direction: column;
                align-items: stretch;
                gap: 0;
            }

            .ky-navbar .ky-nav-left .nav-link,
            .ky-navbar .ky-nav-right .nav-link {
                padding: 10px 0;
                border-bottom: 1px solid var(--ky-border);
                font-size: 15px;
            }

            .ky-navbar .ky-nav-center {
                padding: 12px 0;
                text-align: center;
            }

            .ky-navbar .navbar-brand {
                font-size: 22px;
            }

            .ky-navbar .nav-link::after {
                display: none;
            }
        }

        @media (max-width: 767.98px) {
            .ky-card-grid {
                grid-template-columns: 1fr;
            }

            .ky-scenario-list {
                grid-template-columns: 1fr;
            }

            .ky-metrics {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .ky-metric .ky-metric-num {
                font-size: 24px;
            }

            .ky-page-header h1 {
                font-size: 26px;
            }

            .ky-section {
                padding: 40px 0;
            }

            .ky-section-title {
                font-size: 22px;
            }

            .ky-cta-section {
                padding: 40px 0;
            }

            .ky-cta-section .ky-cta-title {
                font-size: 22px;
            }

            .ky-footer {
                padding: 36px 0 20px;
            }
        }

        @media (max-width: 575.98px) {
            body {
                font-size: 15px;
            }

            .ky-page-header {
                padding: 28px 0 24px;
            }

            .ky-page-header h1 {
                font-size: 22px;
            }

            .ky-metrics {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .ky-metric {
                padding: 16px 12px;
            }

            .ky-metric .ky-metric-num {
                font-size: 20px;
            }

            .ky-card .ky-card-body {
                padding: 16px;
            }

            .ky-section-desc {
                font-size: 14px;
            }
        }

/* roulang page: category1 */
:root {
            --ky-primary: #2F6FED;
            --ky-primary-dark: #1E56C8;
            --ky-primary-light: #4A87F2;
            --ky-secondary-bg: #E8F0FE;
            --ky-tertiary-bg: #D9E3F5;
            --ky-page-bg: #F5F7FA;
            --ky-section-bg: #FFFFFF;
            --ky-section-alt-bg: #EAF1FD;
            --ky-text-dark: #14213D;
            --ky-text-body: #1F2937;
            --ky-text-muted: #5A6B85;
            --ky-accent: #F5A623;
            --ky-border: #E6EDF8;
            --ky-radius-sm: 10px;
            --ky-radius-md: 14px;
            --ky-radius-lg: 18px;
            --ky-shadow: 0 8px 24px rgba(31, 92, 222, 0.08);
            --ky-shadow-hover: 0 12px 32px rgba(31, 92, 222, 0.14);
            --ky-font-stack: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --ky-transition: all 0.25s ease;
            --ky-container-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--ky-font-stack);
            background-color: var(--ky-page-bg);
            color: var(--ky-text-body);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--ky-primary);
            text-decoration: none;
            transition: var(--ky-transition);
        }

        a:hover {
            color: var(--ky-primary-dark);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--ky-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .ky-container {
            max-width: var(--ky-container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ========== Navbar ========== */
        .ky-navbar {
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--ky-border);
            box-shadow: 0 2px 8px rgba(31, 92, 222, 0.04);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 0;
            min-height: 64px;
        }

        .ky-navbar .navbar-brand {
            font-weight: 700;
            font-size: 26px;
            color: var(--ky-text-dark);
            letter-spacing: 1px;
            transition: var(--ky-transition);
            white-space: nowrap;
        }

        .ky-navbar .navbar-brand:hover {
            color: var(--ky-primary);
        }

        .ky-navbar .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--ky-text-body);
            padding: 8px 14px;
            position: relative;
            white-space: nowrap;
            transition: var(--ky-transition);
        }

        .ky-navbar .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--ky-primary);
            border-radius: 1px;
            transform: scaleX(0);
            transition: transform 0.25s ease;
        }

        .ky-navbar .nav-link:hover,
        .ky-navbar .nav-link.active {
            color: var(--ky-primary);
        }

        .ky-navbar .nav-link:hover::after,
        .ky-navbar .nav-link.active::after {
            transform: scaleX(1);
        }

        .ky-navbar .navbar-toggler {
            border: 1px solid var(--ky-primary);
            border-radius: 8px;
            padding: 6px 10px;
            background: #fff;
        }

        .ky-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.15);
            outline: none;
        }

        .ky-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='%232F6FED' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .ky-navbar .navbar-collapse {
            justify-content: space-between;
        }

        .ky-nav-left,
        .ky-nav-right {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .ky-nav-center {
            padding: 0 18px;
        }

        .ky-breadcrumb a {
            color: var(--ky-text-muted);
            font-weight: 500;
        }

        .ky-breadcrumb a:hover {
            color: var(--ky-primary);
        }

        .ky-breadcrumb .breadcrumb-item.active {
            color: var(--ky-primary);
            font-weight: 600;
        }

        /* ========== Page Header ========== */
        .ky-page-header {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center center;
            padding: 56px 0 52px;
            overflow: hidden;
        }

        .ky-page-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(245, 247, 250, 0.95) 0%, rgba(232, 240, 254, 0.90) 50%, rgba(217, 227, 245, 0.85) 100%);
            z-index: 1;
        }

        .ky-page-header .ky-container {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .ky-page-header h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--ky-text-dark);
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .ky-page-header .lead {
            font-size: 16px;
            color: var(--ky-text-muted);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 18px;
        }

        .ky-hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .ky-hero-tags .badge {
            background: #fff;
            color: var(--ky-primary);
            border: 1px solid var(--ky-border);
            font-weight: 500;
            font-size: 12px;
            padding: 5px 12px;
            border-radius: 20px;
        }

        /* ========== Hero Group ========== */
        .ky-group-hero {
            background: #fff;
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-lg);
            padding: 36px 28px;
            box-shadow: var(--ky-shadow);
            margin-top: 28px;
            margin-bottom: 20px;
        }

        .ky-group-hero .group-status {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 18px;
        }

        .ky-group-hero .group-avatar-stack {
            display: flex;
            align-items: center;
        }

        .ky-group-hero .group-avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--ky-secondary-bg);
            border: 2px solid #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: var(--ky-primary);
            margin-left: -8px;
        }

        .ky-group-hero .group-avatar:first-child {
            margin-left: 0;
        }

        .ky-group-hero .group-count {
            font-size: 14px;
            font-weight: 600;
            color: var(--ky-text-dark);
        }

        .ky-group-hero .group-count strong {
            color: var(--ky-primary);
            font-size: 20px;
        }

        .ky-group-hero .group-progress {
            height: 8px;
            background: var(--ky-secondary-bg);
            border-radius: 4px;
            overflow: hidden;
            margin: 12px 0 18px;
        }

        .ky-group-hero .group-progress .bar {
            height: 100%;
            background: var(--ky-primary);
            border-radius: 4px;
            width: 68%;
        }

        .ky-group-hero .btn-group-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .btn-ky-primary {
            background: var(--ky-primary);
            color: #fff;
            border: none;
            border-radius: var(--ky-radius-sm);
            padding: 10px 20px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--ky-transition);
        }

        .btn-ky-primary:hover {
            background: var(--ky-primary-dark);
            color: #fff;
        }

        .btn-ky-outline {
            background: #fff;
            color: var(--ky-primary);
            border: 1px solid var(--ky-primary);
            border-radius: var(--ky-radius-sm);
            padding: 10px 20px;
            font-weight: 600;
            font-size: 14px;
            transition: var(--ky-transition);
        }

        .btn-ky-outline:hover {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary-dark);
        }

        /* ========== Content Layout ========== */
        .ky-content-section {
            padding: 48px 0 56px;
        }

        .ky-content-layout {
            display: grid;
            grid-template-columns: 280px 1fr;
            gap: 32px;
            align-items: start;
        }

        /* ========== Sidebar ========== */
        .ky-sidebar {
            position: sticky;
            top: 84px;
            max-height: calc(100vh - 100px);
            overflow-y: auto;
        }

        .ky-sidebar-widget {
            background: #fff;
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-md);
            padding: 20px;
            margin-bottom: 20px;
            box-shadow: var(--ky-shadow);
        }

        .ky-sidebar-widget h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 14px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--ky-border);
        }

        .ky-toc-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .ky-toc-list li {
            margin-bottom: 8px;
        }

        .ky-toc-list a {
            font-size: 14px;
            color: var(--ky-text-muted);
            display: block;
            padding: 4px 0;
            border-left: 2px solid transparent;
            padding-left: 10px;
            transition: var(--ky-transition);
        }

        .ky-toc-list a:hover,
        .ky-toc-list a.active {
            color: var(--ky-primary);
            border-left-color: var(--ky-primary);
        }

        .ky-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .ky-tag-cloud a {
            font-size: 12px;
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            padding: 4px 12px;
            border-radius: 16px;
            font-weight: 500;
            transition: var(--ky-transition);
        }

        .ky-tag-cloud a:hover {
            background: var(--ky-primary);
            color: #fff;
        }

        .ky-hot-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .ky-hot-list li {
            margin-bottom: 12px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--ky-border);
        }

        .ky-hot-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
            margin-bottom: 0;
        }

        .ky-hot-list a {
            font-size: 13px;
            font-weight: 500;
            color: var(--ky-text-body);
            display: block;
            line-height: 1.5;
        }

        .ky-hot-list a:hover {
            color: var(--ky-primary);
        }

        .ky-hot-list .meta {
            font-size: 11px;
            color: var(--ky-text-muted);
            margin-top: 2px;
        }

        /* ========== Entry List ========== */
        .ky-entry-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .ky-entry-item {
            background: #fff;
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-lg);
            overflow: hidden;
            box-shadow: var(--ky-shadow);
            display: grid;
            grid-template-columns: 1fr 1fr;
            transition: var(--ky-transition);
        }

        .ky-entry-item:hover {
            box-shadow: var(--ky-shadow-hover);
            transform: translateY(-2px);
        }

        .ky-entry-item:nth-child(even) {
            direction: rtl;
        }

        .ky-entry-item:nth-child(even) .ky-entry-content {
            direction: ltr;
        }

        .ky-entry-item .ky-entry-image {
            overflow: hidden;
        }

        .ky-entry-item .ky-entry-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .ky-entry-item:hover .ky-entry-image img {
            transform: scale(1.03);
        }

        .ky-entry-content {
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .ky-entry-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .ky-entry-content p {
            font-size: 14px;
            color: var(--ky-text-muted);
            margin-bottom: 12px;
            line-height: 1.7;
        }

        .ky-entry-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: var(--ky-text-muted);
            margin-bottom: 12px;
        }

        .ky-entry-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .ky-entry-meta i {
            color: var(--ky-primary);
        }

        .ky-entry-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .ky-entry-tags .badge {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            font-weight: 500;
            font-size: 11px;
            padding: 4px 10px;
            border-radius: 14px;
        }

        /* ========== Section Titles ========== */
        .ky-section-title {
            margin-bottom: 28px;
        }

        .ky-section-title h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 8px;
        }

        .ky-section-title p {
            font-size: 15px;
            color: var(--ky-text-muted);
            max-width: 680px;
        }

        /* ========== FAQ Accordion ========== */
        .ky-accordion .accordion-item {
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--ky-shadow);
            background: #fff;
        }

        .ky-accordion .accordion-button {
            background: #fff;
            color: var(--ky-text-dark);
            font-weight: 600;
            font-size: 15px;
            padding: 18px 22px;
            border: none;
            box-shadow: none !important;
        }

        .ky-accordion .accordion-button:not(.collapsed) {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
        }

        .ky-accordion .accordion-button:focus {
            box-shadow: none;
            outline: none;
        }

        .ky-accordion .accordion-button::after {
            background-size: 16px;
            transition: transform 0.3s ease;
        }

        .ky-accordion .accordion-body {
            padding: 16px 22px 20px;
            font-size: 14px;
            color: var(--ky-text-muted);
            line-height: 1.8;
        }

        /* ========== CTA Section ========== */
        .ky-cta-section {
            padding: 56px 0 64px;
        }

        .ky-cta-box {
            background: var(--ky-text-dark);
            border-radius: var(--ky-radius-lg);
            padding: 44px 36px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .ky-cta-box::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(47, 111, 237, 0.15);
            z-index: 1;
        }

        .ky-cta-box::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(245, 166, 35, 0.08);
            z-index: 1;
        }

        .ky-cta-box .cta-inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
        }

        .ky-cta-box h2 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }

        .ky-cta-box p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 0;
            max-width: 520px;
        }

        .ky-cta-box .btn-ky-primary {
            font-size: 15px;
            padding: 12px 28px;
        }

        /* ========== Pagination ========== */
        .ky-pagination {
            margin-top: 32px;
            display: flex;
            justify-content: center;
        }

        .ky-pagination .page-link {
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-sm);
            margin: 0 4px;
            color: var(--ky-primary);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 16px;
            transition: var(--ky-transition);
            background: #fff;
        }

        .ky-pagination .page-item.active .page-link {
            background: var(--ky-primary);
            border-color: var(--ky-primary);
            color: #fff;
        }

        .ky-pagination .page-link:hover {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary-dark);
            border-color: var(--ky-secondary-bg);
        }

        /* ========== Footer ========== */
        .ky-footer {
            background: #0F1C3F;
            color: #fff;
            padding-top: 48px;
            padding-bottom: 20px;
        }

        .ky-footer .ky-footer-brand {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }

        .ky-footer p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
        }

        .ky-footer h5 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

        .ky-footer a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            display: inline-block;
            margin-bottom: 6px;
            transition: var(--ky-transition);
        }

        .ky-footer a:hover {
            color: var(--ky-primary-light);
        }

        .ky-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 32px;
            padding-top: 16px;
            text-align: center;
        }

        .ky-footer-bottom p {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 4px;
        }

        .ky-footer-bottom a {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
            margin: 0 4px;
        }

        .ky-footer-bottom a:hover {
            color: var(--ky-primary-light);
        }

        /* ========== Responsive ========== */
        @media (max-width: 992px) {
            .ky-content-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .ky-sidebar {
                position: static;
                max-height: none;
                overflow-y: visible;
                order: 2;
            }
            .ky-entry-list {
                order: 1;
            }
            .ky-entry-item {
                grid-template-columns: 1fr;
            }
            .ky-entry-item:nth-child(even) {
                direction: ltr;
            }
            .ky-entry-item .ky-entry-image {
                aspect-ratio: 16/9;
            }
            .ky-navbar .navbar-collapse {
                padding: 12px 16px;
                background: #fff;
                border-radius: 12px;
                border: 1px solid var(--ky-border);
                margin-top: 10px;
            }
            .ky-nav-left,
            .ky-nav-right {
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
            }
            .ky-nav-center {
                padding: 8px 0;
                text-align: center;
            }
            .ky-nav-center .navbar-brand {
                font-size: 22px;
            }
            .ky-cta-box .cta-inner {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 768px) {
            .ky-page-header {
                padding: 36px 0 32px;
            }
            .ky-page-header h1 {
                font-size: 28px;
            }
            .ky-entry-content {
                padding: 18px 20px;
            }
            .ky-entry-content h3 {
                font-size: 18px;
            }
            .ky-group-hero {
                padding: 24px 18px;
            }
            .ky-cta-box {
                padding: 32px 22px;
            }
            .ky-cta-box h2 {
                font-size: 22px;
            }
        }

        @media (max-width: 520px) {
            .ky-page-header h1 {
                font-size: 24px;
            }
            .ky-page-header .lead {
                font-size: 14px;
            }
            .ky-group-hero .btn-group-actions {
                flex-direction: column;
            }
            .ky-group-hero .btn-group-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .ky-entry-meta {
                flex-direction: column;
                gap: 4px;
            }
            .ky-cta-box h2 {
                font-size: 20px;
            }
            .ky-pagination .page-link {
                padding: 6px 12px;
                font-size: 12px;
            }
        }

/* roulang page: category4 */
:root {
            --ky-primary: #2F6FED;
            --ky-primary-dark: #1E56C8;
            --ky-primary-light: #4A87F2;
            --ky-secondary-bg: #E8F0FE;
            --ky-tertiary-bg: #D9E3F5;
            --ky-page-bg: #F5F7FA;
            --ky-section-bg: #FFFFFF;
            --ky-section-alt-bg: #EAF1FD;
            --ky-text-dark: #14213D;
            --ky-text-body: #1F2937;
            --ky-text-muted: #5A6B85;
            --ky-accent: #F5A623;
            --ky-border: #E6EDF8;
            --ky-radius-sm: 10px;
            --ky-radius-md: 14px;
            --ky-radius-lg: 18px;
            --ky-shadow: 0 8px 24px rgba(31, 92, 222, 0.08);
            --ky-shadow-hover: 0 12px 32px rgba(31, 92, 222, 0.14);
            --ky-font-stack: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --ky-transition: all 0.25s ease;
            --ky-container-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--ky-font-stack);
            background-color: var(--ky-page-bg);
            color: var(--ky-text-body);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--ky-primary);
            text-decoration: none;
            transition: var(--ky-transition);
        }

        a:hover {
            color: var(--ky-primary-dark);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--ky-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .ky-container {
            max-width: var(--ky-container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ========== Navbar ========== */
        .ky-navbar {
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--ky-border);
            box-shadow: 0 2px 8px rgba(31, 92, 222, 0.04);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 0;
            min-height: 64px;
        }

        .ky-navbar .navbar-brand {
            font-weight: 700;
            font-size: 26px;
            color: var(--ky-text-dark);
            letter-spacing: 1px;
            transition: var(--ky-transition);
            white-space: nowrap;
        }

        .ky-navbar .navbar-brand:hover {
            color: var(--ky-primary);
        }

        .ky-navbar .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--ky-text-body);
            padding: 8px 14px;
            position: relative;
            white-space: nowrap;
            transition: var(--ky-transition);
        }

        .ky-navbar .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--ky-primary);
            border-radius: 1px;
            transform: scaleX(0);
            transition: transform 0.25s ease;
        }

        .ky-navbar .nav-link:hover,
        .ky-navbar .nav-link.active {
            color: var(--ky-primary);
        }

        .ky-navbar .nav-link:hover::after,
        .ky-navbar .nav-link.active::after {
            transform: scaleX(1);
        }

        .ky-navbar .navbar-toggler {
            border: 1px solid var(--ky-primary);
            border-radius: 8px;
            padding: 6px 10px;
            background: #fff;
        }

        .ky-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.15);
            outline: none;
        }

        .ky-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='%232F6FED' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .ky-navbar .navbar-collapse {
            justify-content: space-between;
        }

        .ky-nav-left,
        .ky-nav-right {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .ky-nav-center {
            padding: 0 18px;
        }

        /* ========== Breadcrumb ========== */
        .ky-breadcrumb-wrap {
            background: var(--ky-section-bg);
            border-bottom: 1px solid var(--ky-border);
            padding: 14px 0;
        }

        .ky-breadcrumb {
            margin: 0;
            font-size: 13px;
        }

        .ky-breadcrumb .breadcrumb-item {
            color: var(--ky-text-muted);
        }

        .ky-breadcrumb .breadcrumb-item a {
            color: var(--ky-text-muted);
            font-weight: 500;
        }

        .ky-breadcrumb .breadcrumb-item a:hover {
            color: var(--ky-primary);
        }

        .ky-breadcrumb .breadcrumb-item.active {
            color: var(--ky-primary);
            font-weight: 600;
        }

        /* ========== Category Hero ========== */
        .ky-cat-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center center;
            padding: 72px 0 80px;
            overflow: hidden;
        }

        .ky-cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(245, 247, 250, 0.95) 0%, rgba(232, 240, 254, 0.9) 45%, rgba(217, 227, 245, 0.85) 100%);
            z-index: 1;
        }

        .ky-cat-hero .ky-container {
            position: relative;
            z-index: 2;
        }

        .ky-cat-hero-badge {
            display: inline-block;
            background: var(--ky-primary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 18px;
        }

        .ky-cat-hero h1 {
            font-size: 38px;
            font-weight: 700;
            color: var(--ky-text-dark);
            line-height: 1.3;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .ky-cat-hero p {
            font-size: 17px;
            color: var(--ky-text-muted);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 28px;
        }

        .ky-cat-hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        /* ========== Buttons ========== */
        .ky-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 24px;
            border-radius: var(--ky-radius-sm);
            transition: var(--ky-transition);
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }

        .ky-btn i {
            font-size: 14px;
        }

        .ky-btn-primary {
            background: var(--ky-primary);
            color: #fff;
        }

        .ky-btn-primary:hover {
            background: var(--ky-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(47, 111, 237, 0.3);
        }

        .ky-btn-outline {
            background: transparent;
            color: var(--ky-primary);
            border: 2px solid var(--ky-primary);
        }

        .ky-btn-outline:hover {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(47, 111, 237, 0.15);
        }

        .ky-btn-white {
            background: #fff;
            color: var(--ky-primary);
        }

        .ky-btn-white:hover {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary-dark);
            transform: translateY(-2px);
        }

        /* ========== Section ========== */
        .ky-section {
            padding: 72px 0;
        }

        .ky-section-alt {
            background: var(--ky-section-alt-bg);
        }

        .ky-section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .ky-section-subtitle {
            font-size: 16px;
            color: var(--ky-text-muted);
            margin-bottom: 40px;
            max-width: 680px;
            line-height: 1.8;
        }

        /* ========== Feature Entry (宽幅特色条目) ========== */
        .ky-feature-entry {
            background: var(--ky-section-bg);
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-lg);
            box-shadow: var(--ky-shadow);
            overflow: hidden;
            transition: var(--ky-transition);
        }

        .ky-feature-entry:hover {
            box-shadow: var(--ky-shadow-hover);
            transform: translateY(-3px);
        }

        .ky-feature-entry-img {
            height: 100%;
            min-height: 320px;
            object-fit: cover;
            border-radius: var(--ky-radius-lg) 0 0 var(--ky-radius-lg);
        }

        .ky-feature-entry-body {
            padding: 36px 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            height: 100%;
        }

        .ky-feature-entry-tag {
            display: inline-block;
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 16px;
            letter-spacing: 0.4px;
            margin-bottom: 14px;
            width: fit-content;
        }

        .ky-feature-entry-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .ky-feature-entry-desc {
            font-size: 15px;
            color: var(--ky-text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .ky-feature-entry-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 13px;
            color: var(--ky-text-muted);
            border-top: 1px solid var(--ky-border);
            padding-top: 16px;
        }

        .ky-feature-entry-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .ky-feature-entry-meta i {
            color: var(--ky-primary);
            font-size: 13px;
        }

        /* ========== Horizontal Scroll Cards ========== */
        .ky-hscroll-wrap {
            overflow-x: auto;
            padding-bottom: 16px;
            scrollbar-width: thin;
            scrollbar-color: var(--ky-tertiary-bg) transparent;
            -webkit-overflow-scrolling: touch;
            margin: 0 -4px;
            padding-left: 4px;
            padding-right: 4px;
        }

        .ky-hscroll-wrap::-webkit-scrollbar {
            height: 6px;
        }

        .ky-hscroll-wrap::-webkit-scrollbar-track {
            background: transparent;
        }

        .ky-hscroll-wrap::-webkit-scrollbar-thumb {
            background: var(--ky-tertiary-bg);
            border-radius: 3px;
        }

        .ky-hscroll-row {
            display: flex;
            gap: 20px;
            min-width: min-content;
        }

        .ky-hscroll-card {
            flex: 0 0 auto;
            width: 320px;
            background: var(--ky-section-bg);
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-md);
            box-shadow: var(--ky-shadow);
            overflow: hidden;
            transition: var(--ky-transition);
        }

        .ky-hscroll-card:hover {
            box-shadow: var(--ky-shadow-hover);
            transform: translateY(-3px);
        }

        .ky-hscroll-card-img {
            height: 180px;
            object-fit: cover;
            width: 100%;
        }

        .ky-hscroll-card-body {
            padding: 18px 20px 20px;
        }

        .ky-hscroll-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 8px;
            line-height: 1.45;
        }

        .ky-hscroll-card-desc {
            font-size: 13px;
            color: var(--ky-text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .ky-hscroll-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        /* ========== Badge / Tag ========== */
        .ky-badge {
            display: inline-block;
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 14px;
            letter-spacing: 0.3px;
            transition: var(--ky-transition);
        }

        .ky-badge:hover {
            background: var(--ky-primary);
            color: #fff;
        }

        /* ========== Stats / Data Module ========== */
        .ky-stats-panel {
            background: var(--ky-section-bg);
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-lg);
            box-shadow: var(--ky-shadow);
            padding: 36px 40px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }

        .ky-stat-item {
            text-align: center;
            padding: 16px 12px;
            border-radius: var(--ky-radius-sm);
            background: var(--ky-page-bg);
            border: 1px solid var(--ky-border);
            transition: var(--ky-transition);
        }

        .ky-stat-item:hover {
            border-color: var(--ky-primary);
            box-shadow: 0 4px 16px rgba(47, 111, 237, 0.1);
        }

        .ky-stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--ky-primary);
            line-height: 1.2;
            margin-bottom: 6px;
            font-variant-numeric: tabular-nums;
        }

        .ky-stat-label {
            font-size: 13px;
            color: var(--ky-text-muted);
            font-weight: 500;
            line-height: 1.6;
        }

        /* ========== Process Steps ========== */
        .ky-process-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .ky-process-step {
            background: var(--ky-section-bg);
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: var(--ky-transition);
            position: relative;
        }

        .ky-process-step:hover {
            border-color: var(--ky-primary);
            box-shadow: var(--ky-shadow-hover);
            transform: translateY(-2px);
        }

        .ky-process-step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 14px;
        }

        .ky-process-step-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 8px;
        }

        .ky-process-step-desc {
            font-size: 13px;
            color: var(--ky-text-muted);
            line-height: 1.65;
        }

        /* ========== FAQ Accordion ========== */
        .ky-accordion .accordion-item {
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--ky-section-bg);
            transition: var(--ky-transition);
        }

        .ky-accordion .accordion-item:hover {
            box-shadow: 0 4px 16px rgba(31, 92, 222, 0.08);
        }

        .ky-accordion .accordion-button {
            background: #fff;
            color: var(--ky-text-dark);
            font-weight: 600;
            font-size: 15px;
            padding: 18px 22px;
            border: none;
            border-radius: var(--ky-radius-md);
            transition: var(--ky-transition);
            gap: 12px;
        }

        .ky-accordion .accordion-button:focus {
            box-shadow: none;
            outline: none;
            background: #fff;
            color: var(--ky-primary);
        }

        .ky-accordion .accordion-button:not(.collapsed) {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            box-shadow: none;
        }

        .ky-accordion .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='%232F6FED' xmlns='http://www.w3.org/2000/svg'%3e%3cpath fill-rule='evenodd' d='M8 2a.5.5 0 0 1 .5.5v5h5a.5.5 0 0 1 0 1h-5v5a.5.5 0 0 1-1 0v-5h-5a.5.5 0 0 1 0-1h5v-5A.5.5 0 0 1 8 2z'/%3e%3c/svg%3e");
            transition: transform 0.3s ease;
        }

        .ky-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
        }

        .ky-accordion .accordion-body {
            padding: 18px 22px 20px;
            font-size: 14px;
            color: var(--ky-text-muted);
            line-height: 1.75;
            background: #fff;
            border-top: 1px solid var(--ky-border);
        }

        /* ========== CTA Section ========== */
        .ky-cta-section {
            background: #0F1C3F;
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }

        .ky-cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(47, 111, 237, 0.25) 0%, transparent 55%),
                radial-gradient(ellipse at 75% 40%, rgba(74, 135, 242, 0.15) 0%, transparent 50%);
            pointer-events: none;
        }

        .ky-cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .ky-cta-content h2 {
            color: #fff;
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .ky-cta-content p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 28px;
        }

        .ky-cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
            margin-bottom: 20px;
        }

        /* ========== Form ========== */
        .ky-form-input {
            background: #fff;
            border: 1px solid var(--ky-tertiary-bg);
            border-radius: var(--ky-radius-sm);
            padding: 10px 16px;
            font-size: 14px;
            color: var(--ky-text-body);
            transition: var(--ky-transition);
            width: 100%;
        }

        .ky-form-input:focus {
            outline: none;
            border-color: var(--ky-primary);
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.15);
        }

        .ky-form-input::placeholder {
            color: #a0b0c8;
        }

        /* ========== Pagination ========== */
        .ky-pagination {
            display: flex;
            gap: 6px;
            justify-content: center;
            margin-top: 36px;
        }

        .ky-pagination .page-link {
            border: 1px solid var(--ky-border);
            border-radius: 8px;
            color: var(--ky-primary);
            font-weight: 500;
            padding: 8px 16px;
            transition: var(--ky-transition);
            background: #fff;
        }

        .ky-pagination .page-link:hover {
            background: var(--ky-secondary-bg);
            border-color: var(--ky-primary);
            color: var(--ky-primary-dark);
        }

        .ky-pagination .page-item.active .page-link {
            background: var(--ky-primary);
            border-color: var(--ky-primary);
            color: #fff;
        }

        .ky-pagination .page-item.disabled .page-link {
            background: #f5f5f5;
            border-color: var(--ky-border);
            color: #aaa;
            pointer-events: none;
        }

        /* ========== Footer ========== */
        .ky-footer {
            background: #0F1C3F;
            color: rgba(255, 255, 255, 0.85);
            padding: 60px 0 0;
            margin-top: 0;
        }

        .ky-footer .ky-footer-brand {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }

        .ky-footer p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 0;
        }

        .ky-footer h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .ky-footer a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            line-height: 2.3;
            transition: var(--ky-transition);
            display: inline-block;
        }

        .ky-footer a:hover {
            color: var(--ky-primary-light);
            transform: translateX(3px);
        }

        .ky-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 20px 0;
            margin-top: 40px;
            text-align: center;
        }

        .ky-footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            margin-bottom: 4px;
        }

        .ky-footer-bottom a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }

        .ky-footer-bottom a:hover {
            color: var(--ky-primary-light);
            transform: none;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1199.98px) {
            .ky-navbar .nav-link {
                padding: 8px 10px;
                font-size: 13px;
            }

            .ky-nav-center {
                padding: 0 10px;
            }

            .ky-navbar .navbar-brand {
                font-size: 22px;
            }

            .ky-stats-panel {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
                padding: 24px 28px;
            }

            .ky-process-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 991.98px) {
            .ky-navbar {
                padding: 8px 0;
            }

            .ky-navbar .navbar-collapse {
                background: #fff;
                border-radius: 0 0 var(--ky-radius-md) var(--ky-radius-md);
                padding: 16px 20px;
                box-shadow: 0 8px 24px rgba(31, 92, 222, 0.1);
                margin-top: 8px;
                max-height: 70vh;
                overflow-y: auto;
            }

            .ky-nav-left,
            .ky-nav-right {
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                width: 100%;
            }

            .ky-nav-center {
                padding: 8px 0;
                width: 100%;
                border-top: 1px solid var(--ky-border);
                border-bottom: 1px solid var(--ky-border);
                margin: 8px 0;
            }

            .ky-navbar .nav-link {
                padding: 10px 16px;
                width: 100%;
                display: block;
                border-bottom: 1px solid #f0f4fa;
            }

            .ky-navbar .nav-link::after {
                display: none;
            }

            .ky-navbar .navbar-brand {
                font-size: 22px;
            }

            .ky-cat-hero {
                padding: 48px 0 56px;
            }

            .ky-cat-hero h1 {
                font-size: 30px;
            }

            .ky-section {
                padding: 48px 0;
            }

            .ky-section-title {
                font-size: 24px;
            }

            .ky-feature-entry-img {
                min-height: 240px;
                border-radius: var(--ky-radius-lg) var(--ky-radius-lg) 0 0;
            }

            .ky-feature-entry-body {
                padding: 24px 24px 28px;
            }

            .ky-process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }

        @media (max-width: 767.98px) {
            .ky-stats-panel {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
                padding: 20px;
            }

            .ky-stat-number {
                font-size: 28px;
            }

            .ky-process-grid {
                grid-template-columns: 1fr;
            }

            .ky-hscroll-card {
                width: 280px;
            }

            .ky-cat-hero h1 {
                font-size: 26px;
            }

            .ky-cat-hero p {
                font-size: 15px;
            }

            .ky-section-title {
                font-size: 22px;
            }

            .ky-feature-entry-title {
                font-size: 20px;
            }
        }

        @media (max-width: 575.98px) {
            .ky-container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .ky-section {
                padding: 36px 0;
            }

            .ky-cat-hero {
                padding: 40px 0 44px;
            }

            .ky-cat-hero h1 {
                font-size: 24px;
            }

            .ky-stats-panel {
                grid-template-columns: 1fr;
                gap: 10px;
                padding: 16px;
            }

            .ky-stat-item {
                padding: 12px 10px;
            }

            .ky-stat-number {
                font-size: 26px;
            }

            .ky-btn {
                font-size: 14px;
                padding: 10px 18px;
            }

            .ky-feature-entry-body {
                padding: 18px 18px 22px;
            }

            .ky-cta-content h2 {
                font-size: 24px;
            }

            .ky-footer {
                padding: 40px 0 0;
            }
        }

/* roulang page: category3 */
:root {
  --ky-primary: #2F6FED;
  --ky-primary-dark: #1E56C8;
  --ky-primary-light: #4A87F2;
  --ky-secondary-bg: #E8F0FE;
  --ky-tertiary-bg: #D9E3F5;
  --ky-page-bg: #F5F7FA;
  --ky-section-bg: #FFFFFF;
  --ky-section-alt-bg: #EAF1FD;
  --ky-text-dark: #14213D;
  --ky-text-body: #1F2937;
  --ky-text-muted: #5A6B85;
  --ky-accent: #F5A623;
  --ky-border: #E6EDF8;
  --ky-radius-sm: 10px;
  --ky-radius-md: 14px;
  --ky-radius-lg: 18px;
  --ky-shadow: 0 8px 24px rgba(31, 92, 222, 0.08);
  --ky-shadow-hover: 0 12px 32px rgba(31, 92, 222, 0.14);
  --ky-font-stack: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --ky-transition: all 0.25s ease;
  --ky-container-max: 1200px;
}
html { scroll-behavior: smooth; }
body {
  font-family: var(--ky-font-stack);
  background-color: var(--ky-page-bg);
  color: var(--ky-text-body);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--ky-primary); text-decoration: none; transition: var(--ky-transition); }
a:hover { color: var(--ky-primary-dark); text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--ky-primary);
  outline-offset: 2px;
  border-radius: 4px;
}
img { max-width: 100%; height: auto; display: block; }
.ky-container { max-width: var(--ky-container-max); margin: 0 auto; padding-left: 20px; padding-right: 20px; }

/* ========== Navbar ========== */
.ky-navbar {
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--ky-border);
  box-shadow: 0 2px 8px rgba(31, 92, 222, 0.04);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 0;
  min-height: 64px;
}
.ky-navbar .navbar-brand {
  font-weight: 700;
  font-size: 26px;
  color: var(--ky-text-dark);
  letter-spacing: 1px;
  transition: var(--ky-transition);
  white-space: nowrap;
}
.ky-navbar .navbar-brand:hover { color: var(--ky-primary); }
.ky-navbar .nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--ky-text-body);
  padding: 8px 14px;
  position: relative;
  white-space: nowrap;
  transition: var(--ky-transition);
}
.ky-navbar .nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--ky-primary);
  border-radius: 1px;
  transform: scaleX(0);
  transition: transform 0.25s ease;
}
.ky-navbar .nav-link:hover, .ky-navbar .nav-link.active { color: var(--ky-primary); }
.ky-navbar .nav-link:hover::after, .ky-navbar .nav-link.active::after { transform: scaleX(1); }
.ky-navbar .navbar-toggler {
  border: 1px solid var(--ky-primary);
  border-radius: 8px;
  padding: 6px 10px;
  background: #fff;
}
.ky-navbar .navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.15);
  outline: none;
}
.ky-navbar .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='%232F6FED' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.ky-navbar .navbar-collapse { justify-content: space-between; }
.ky-nav-left, .ky-nav-right { display: flex; align-items: center; gap: 4px; }
.ky-nav-center { padding: 0 18px; }

/* ========== Breadcrumb ========== */
.ky-breadcrumb-section {
  background: linear-gradient(135deg, rgba(232, 240, 254, 0.6) 0%, rgba(245, 247, 250, 0.4) 100%);
  border-bottom: 1px solid var(--ky-border);
  padding: 14px 0;
}
.ky-breadcrumb { margin-bottom: 0; }
.ky-breadcrumb .breadcrumb-item { font-size: 13px; }
.ky-breadcrumb a { color: var(--ky-text-muted); font-weight: 500; }
.ky-breadcrumb a:hover { color: var(--ky-primary); }
.ky-breadcrumb .breadcrumb-item.active { color: var(--ky-primary); font-weight: 600; }
.ky-breadcrumb .breadcrumb-item + .breadcrumb-item::before { color: var(--ky-text-muted); content: '/'; }

/* ========== Page Header ========== */
.ky-page-header {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center center;
  padding: 52px 0 48px;
  overflow: hidden;
}
.ky-page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(245, 247, 250, 0.92) 0%, rgba(232, 240, 254, 0.88) 50%, rgba(217, 227, 245, 0.82) 100%);
  z-index: 1;
}
.ky-page-header .ky-container {
  position: relative;
  z-index: 2;
}
.ky-page-header-badge {
  display: inline-block;
  background: var(--ky-primary);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 5px 16px;
  border-radius: 20px;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}
.ky-page-header h1 {
  font-size: 34px;
  font-weight: 700;
  color: var(--ky-text-dark);
  line-height: 1.3;
  margin-bottom: 16px;
}
.ky-page-header .lead {
  font-size: 16px;
  color: var(--ky-text-muted);
  max-width: 760px;
  line-height: 1.8;
}

/* ========== Accordion Section ========== */
.ky-accordion-section {
  padding: 56px 0;
  background-color: #fff;
}
.ky-section-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--ky-text-dark);
  margin-bottom: 12px;
}
.ky-section-subtitle {
  font-size: 14px;
  color: var(--ky-text-muted);
  margin-bottom: 28px;
  max-width: 680px;
  line-height: 1.7;
}
.ky-accordion .accordion-item {
  border: 1px solid var(--ky-border);
  border-radius: var(--ky-radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--ky-transition);
}
.ky-accordion .accordion-item:hover {
  border-color: var(--ky-primary-light);
  box-shadow: 0 4px 16px rgba(31, 92, 222, 0.06);
}
.ky-accordion .accordion-button {
  font-weight: 600;
  font-size: 16px;
  color: var(--ky-text-dark);
  background: #fff;
  padding: 18px 24px;
  border: none;
  box-shadow: none;
  line-height: 1.6;
}
.ky-accordion .accordion-button:not(.collapsed) {
  background: var(--ky-secondary-bg);
  color: var(--ky-primary);
  border: none;
  box-shadow: none;
}
.ky-accordion .accordion-button:focus {
  border: none;
  box-shadow: 0 0 0 2px rgba(47, 111, 237, 0.2);
}
.ky-accordion .accordion-button::after {
  background-size: 16px;
  transition: var(--ky-transition);
}
.ky-accordion .accordion-body {
  background: #fff;
  color: var(--ky-text-body);
  font-size: 15px;
  line-height: 1.8;
  padding: 18px 24px 22px;
  border-top: 1px solid var(--ky-border);
}
.ky-accordion .accordion-body p { margin-bottom: 8px; }
.ky-accordion .accordion-body p:last-child { margin-bottom: 0; }

/* ========== Compact List ========== */
.ky-list-section {
  padding: 56px 0;
  background-color: var(--ky-page-bg);
}
.ky-compact-list { display: flex; flex-direction: column; gap: 16px; }
.ky-list-item {
  display: flex;
  align-items: center;
  background: #fff;
  border: 1px solid var(--ky-border);
  border-radius: var(--ky-radius-md);
  padding: 16px 18px;
  transition: var(--ky-transition);
  gap: 18px;
  flex-wrap: wrap;
}
.ky-list-item:hover {
  border-color: var(--ky-primary-light);
  box-shadow: var(--ky-shadow);
  transform: translateY(-2px);
}
.ky-list-item-img {
  flex: 0 0 120px;
  border-radius: var(--ky-radius-sm);
  overflow: hidden;
}
.ky-list-item-img img {
  width: 120px;
  height: 78px;
  object-fit: cover;
  border-radius: var(--ky-radius-sm);
}
.ky-list-item-content {
  flex: 1;
  min-width: 220px;
}
.ky-list-item-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--ky-text-dark);
  margin-bottom: 6px;
}
.ky-list-item-title a { color: var(--ky-text-dark); }
.ky-list-item-title a:hover { color: var(--ky-primary); }
.ky-list-item-summary {
  font-size: 14px;
  color: var(--ky-text-muted);
  margin-bottom: 6px;
  line-height: 1.7;
}
.ky-list-item-meta {
  font-size: 12px;
  color: var(--ky-text-muted);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.ky-list-item-meta i {
  color: var(--ky-primary);
  font-size: 11px;
  margin-right: 3px;
}
.ky-list-item-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.ky-tag {
  display: inline-block;
  background: var(--ky-secondary-bg);
  color: var(--ky-primary);
  font-size: 12px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 20px;
  white-space: nowrap;
}
.ky-tag-small {
  display: inline-block;
  background: #fff;
  border: 1px solid var(--ky-border);
  color: var(--ky-text-muted);
  font-size: 11px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 16px;
  white-space: nowrap;
}

/* ========== Stats ========== */
.ky-stats-section {
  padding: 56px 0;
  background: linear-gradient(135deg, var(--ky-section-alt-bg) 0%, #fff 60%);
}
.ky-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.ky-stat-card {
  background: #fff;
  border: 1px solid var(--ky-border);
  border-radius: var(--ky-radius-md);
  padding: 24px 20px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(31, 92, 222, 0.04);
  transition: var(--ky-transition);
}
.ky-stat-card:hover {
  box-shadow: var(--ky-shadow);
  transform: translateY(-2px);
  border-color: var(--ky-primary-light);
}
.ky-stat-number {
  font-size: 32px;
  font-weight: 700;
  color: var(--ky-primary);
  letter-spacing: -0.5px;
  line-height: 1.2;
  margin-bottom: 6px;
}
.ky-stat-label {
  font-size: 13px;
  color: var(--ky-text-muted);
  font-weight: 500;
}

/* ========== Process ========== */
.ky-process-section {
  padding: 56px 0;
  background-color: #fff;
}
.ky-process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 28px;
}
.ky-process-step {
  text-align: center;
  padding: 24px 18px;
  background: var(--ky-page-bg);
  border-radius: var(--ky-radius-md);
  border: 1px solid var(--ky-border);
  transition: var(--ky-transition);
}
.ky-process-step:hover {
  background: var(--ky-secondary-bg);
  border-color: var(--ky-primary-light);
}
.ky-step-num {
  width: 42px;
  height: 42px;
  margin: 0 auto 12px;
  background: var(--ky-primary);
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ky-step-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--ky-text-dark);
  margin-bottom: 6px;
}
.ky-step-desc {
  font-size: 13px;
  color: var(--ky-text-muted);
  line-height: 1.7;
}

/* ========== Pagination ========== */
.ky-pagination-section {
  padding: 12px 0 44px;
  background-color: var(--ky-page-bg);
}
.ky-pagination .page-item .page-link {
  color: var(--ky-primary);
  border: 1px solid var(--ky-border);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  margin: 0 3px;
  transition: var(--ky-transition);
}
.ky-pagination .page-item.active .page-link {
  background: var(--ky-primary);
  border-color: var(--ky-primary);
  color: #fff;
}
.ky-pagination .page-item .page-link:hover {
  background: var(--ky-secondary-bg);
  border-color: var(--ky-primary-light);
  color: var(--ky-primary);
}

/* ========== FAQ ========== */
.ky-faq-section {
  padding: 56px 0;
  background-color: #fff;
}
.ky-faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}
.ky-faq-card {
  background: var(--ky-page-bg);
  border: 1px solid var(--ky-border);
  border-radius: var(--ky-radius-md);
  padding: 20px 22px;
  transition: var(--ky-transition);
}
.ky-faq-card:hover {
  background: #fff;
  border-color: var(--ky-primary-light);
  box-shadow: var(--ky-shadow);
}
.ky-faq-q {
  font-size: 16px;
  font-weight: 700;
  color: var(--ky-text-dark);
  margin-bottom: 8px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.ky-faq-q i {
  color: var(--ky-primary);
  margin-top: 4px;
  font-size: 14px;
}
.ky-faq-a {
  font-size: 14px;
  color: var(--ky-text-muted);
  line-height: 1.8;
  margin-left: 22px;
}

/* ========== CTA ========== */
.ky-cta-section {
  padding: 64px 0;
  background: linear-gradient(135deg, var(--ky-text-dark) 0%, #1E3A6D 60%, #2F6FED 100%);
  position: relative;
  overflow: hidden;
}
.ky-cta-section::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -40px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(47, 111, 237, 0.2);
  z-index: 1;
}
.ky-cta-section::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -60px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(245, 166, 35, 0.08);
  z-index: 1;
}
.ky-cta-section .ky-container {
  position: relative;
  z-index: 2;
}
.ky-cta-section h2 {
  color: #fff;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}
.ky-cta-section p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 15px;
  max-width: 640px;
  line-height: 1.8;
  margin-bottom: 24px;
}
.ky-btn {
  display: inline-block;
  font-weight: 600;
  font-size: 15px;
  padding: 11px 24px;
  border-radius: var(--ky-radius-sm);
  transition: var(--ky-transition);
  border: none;
  cursor: pointer;
  text-align: center;
  line-height: 1.6;
}
.ky-btn-primary {
  background: var(--ky-primary);
  color: #fff;
}
.ky-btn-primary:hover {
  background: var(--ky-primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(30, 86, 200, 0.3);
}
.ky-btn-outline-light {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.7);
}
.ky-btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: #fff;
}

/* ========== Footer ========== */
.ky-footer {
  background: #0F1C3F;
  color: rgba(255, 255, 255, 0.75);
  padding: 48px 0 28px;
  font-size: 14px;
}
.ky-footer-brand {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.ky-footer p {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 12px;
}
.ky-footer h5 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.ky-footer a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  display: inline-block;
  margin-bottom: 8px;
  transition: var(--ky-transition);
  line-height: 1.6;
}
.ky-footer a:hover {
  color: #a8c6ff;
}
.ky-footer-bottom {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}
.ky-footer-bottom p {
  margin-bottom: 0;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
}
.ky-footer-bottom a {
  color: rgba(255, 255, 255, 0.55);
  font-size: 12px;
  margin-bottom: 0;
}
.ky-footer-bottom a:hover { color: #a8c6ff; }

/* ========== Responsive ========== */
@media (max-width: 992px) {
  .ky-navbar .navbar-collapse {
    background: #fff;
    border-radius: 0 0 14px 14px;
    box-shadow: 0 12px 28px rgba(31, 92, 222, 0.1);
    padding: 14px 18px;
  }
  .ky-nav-left, .ky-nav-right {
    flex-direction: column;
    gap: 2px;
    align-items: flex-start;
  }
  .ky-nav-center {
    padding: 8px 0;
  }
  .ky-navbar .navbar-brand {
    font-size: 22px;
  }
  .ky-page-header h1 { font-size: 28px; }
  .ky-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .ky-process-grid { grid-template-columns: repeat(2, 1fr); }
  .ky-faq-grid { grid-template-columns: 1fr; }
  .ky-list-item { padding: 14px; gap: 14px; }
  .ky-list-item-img { flex: 0 0 90px; }
  .ky-list-item-img img { width: 90px; height: 60px; }
}
@media (max-width: 576px) {
  .ky-page-header { padding: 36px 0 32px; }
  .ky-page-header h1 { font-size: 24px; }
  .ky-section-title { font-size: 20px; }
  .ky-accordion-section,
  .ky-list-section,
  .ky-stats-section,
  .ky-process-section,
  .ky-faq-section { padding: 36px 0; }
  .ky-stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .ky-stat-number { font-size: 24px; }
  .ky-process-grid { grid-template-columns: 1fr; gap: 12px; }
  .ky-list-item { flex-direction: column; align-items: flex-start; }
  .ky-list-item-img { flex: 0 0 100%; }
  .ky-list-item-img img { width: 100%; height: 150px; object-fit: cover; }
  .ky-cta-section h2 { font-size: 22px; }
  .ky-footer-bottom { flex-direction: column; text-align: center; }
}

/* roulang page: category6 */
:root {
            --ky-primary: #2F6FED;
            --ky-primary-dark: #1E56C8;
            --ky-primary-light: #4A87F2;
            --ky-secondary-bg: #E8F0FE;
            --ky-tertiary-bg: #D9E3F5;
            --ky-page-bg: #F5F7FA;
            --ky-section-bg: #FFFFFF;
            --ky-section-alt-bg: #EAF1FD;
            --ky-text-dark: #14213D;
            --ky-text-body: #1F2937;
            --ky-text-muted: #5A6B85;
            --ky-accent: #F5A623;
            --ky-border: #E6EDF8;
            --ky-radius-sm: 10px;
            --ky-radius-md: 14px;
            --ky-radius-lg: 18px;
            --ky-shadow: 0 8px 24px rgba(31, 92, 222, 0.08);
            --ky-shadow-hover: 0 12px 32px rgba(31, 92, 222, 0.14);
            --ky-font-stack: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --ky-transition: all 0.25s ease;
            --ky-container-max: 1200px;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--ky-font-stack);
            background-color: var(--ky-page-bg);
            color: var(--ky-text-body);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--ky-primary); text-decoration: none; transition: var(--ky-transition); }
        a:hover { color: var(--ky-primary-dark); text-decoration: none; }
        a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--ky-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img { max-width: 100%; height: auto; display: block; }
        .ky-container {
            max-width: var(--ky-container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .ky-navbar {
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--ky-border);
            box-shadow: 0 2px 8px rgba(31, 92, 222, 0.04);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 0;
            min-height: 64px;
        }
        .ky-navbar .navbar-brand {
            font-weight: 700;
            font-size: 26px;
            color: var(--ky-text-dark);
            letter-spacing: 1px;
            transition: var(--ky-transition);
            white-space: nowrap;
        }
        .ky-navbar .navbar-brand:hover { color: var(--ky-primary); }
        .ky-navbar .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--ky-text-body);
            padding: 8px 14px;
            position: relative;
            white-space: nowrap;
            transition: var(--ky-transition);
        }
        .ky-navbar .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--ky-primary);
            border-radius: 1px;
            transform: scaleX(0);
            transition: transform 0.25s ease;
        }
        .ky-navbar .nav-link:hover,
        .ky-navbar .nav-link.active { color: var(--ky-primary); }
        .ky-navbar .nav-link:hover::after,
        .ky-navbar .nav-link.active::after { transform: scaleX(1); }
        .ky-navbar .navbar-toggler {
            border: 1px solid var(--ky-primary);
            border-radius: 8px;
            padding: 6px 10px;
            background: #fff;
        }
        .ky-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.15);
            outline: none;
        }
        .ky-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='%232F6FED' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .ky-navbar .navbar-collapse { justify-content: space-between; }
        .ky-nav-left, .ky-nav-right { display: flex; align-items: center; gap: 4px; }
        .ky-nav-center { padding: 0 18px; }

        .ky-breadcrumb {
            background: transparent;
            padding: 16px 0 8px;
            font-size: 14px;
        }
        .ky-breadcrumb .breadcrumb { margin: 0; }
        .ky-breadcrumb a { color: var(--ky-text-muted); font-weight: 500; }
        .ky-breadcrumb a:hover { color: var(--ky-primary); }
        .ky-breadcrumb .breadcrumb-item.active { color: var(--ky-primary); font-weight: 600; }
        .ky-breadcrumb .breadcrumb-item+.breadcrumb-item::before {
            content: '/';
            color: var(--ky-tertiary-bg);
        }

        .ky-page-header {
            background: linear-gradient(180deg, var(--ky-section-bg) 0%, var(--ky-section-alt-bg) 100%);
            padding: 40px 0 48px;
            border-bottom: 1px solid var(--ky-border);
            margin-bottom: 40px;
        }
        .ky-page-header h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 12px;
        }
        .ky-page-header .lead {
            font-size: 17px;
            color: var(--ky-text-muted);
            max-width: 800px;
            margin-bottom: 0;
            line-height: 1.9;
        }
        .ky-page-header .meta-list {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 18px;
            font-size: 13px;
            color: var(--ky-text-muted);
        }
        .ky-page-header .meta-list span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #fff;
            border: 1px solid var(--ky-border);
            border-radius: 20px;
            padding: 4px 14px;
        }
        .ky-page-header .meta-list i { color: var(--ky-primary); }

        .ky-section { padding: 52px 0; }
        .ky-section-alt { background: var(--ky-section-alt-bg); }
        .ky-section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 10px;
        }
        .ky-section-subtitle {
            font-size: 16px;
            color: var(--ky-text-muted);
            max-width: 720px;
            margin-bottom: 32px;
        }
        .ky-card {
            background: var(--ky-section-bg);
            border-radius: var(--ky-radius-md);
            border: 1px solid var(--ky-border);
            box-shadow: var(--ky-shadow);
            transition: var(--ky-transition);
            overflow: hidden;
            height: 100%;
        }
        .ky-card:hover {
            box-shadow: var(--ky-shadow-hover);
            transform: translateY(-3px);
        }
        .ky-card-body { padding: 20px 22px; }
        .ky-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 8px;
        }
        .ky-card-text {
            font-size: 14px;
            color: var(--ky-text-muted);
            line-height: 1.8;
            margin-bottom: 12px;
        }
        .ky-tag {
            display: inline-block;
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 20px;
            margin-right: 6px;
            margin-bottom: 6px;
            letter-spacing: 0.3px;
        }
        .ky-tag-accent {
            background: rgba(245, 166, 35, 0.12);
            color: #B87D0A;
        }
        .ky-meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 12px;
            color: var(--ky-text-muted);
            margin-top: 8px;
        }
        .ky-meta-info span { display: inline-flex; align-items: center; gap: 4px; }

        .ky-table-wrap {
            background: var(--ky-section-bg);
            border-radius: var(--ky-radius-md);
            border: 1px solid var(--ky-border);
            box-shadow: var(--ky-shadow);
            overflow: hidden;
            margin-bottom: 32px;
        }
        .ky-table-wrap .table {
            margin: 0;
            font-size: 14px;
        }
        .ky-table-wrap .table thead th {
            background: var(--ky-secondary-bg);
            color: var(--ky-text-dark);
            font-weight: 700;
            font-size: 13px;
            border-bottom: 2px solid var(--ky-tertiary-bg);
            padding: 14px 16px;
            white-space: nowrap;
        }
        .ky-table-wrap .table tbody td {
            padding: 14px 16px;
            border-bottom: 1px solid var(--ky-border);
            vertical-align: middle;
            color: var(--ky-text-body);
            font-size: 14px;
        }
        .ky-table-wrap .table tbody tr:hover {
            background: #F8FAFE;
        }
        .ky-table-wrap .table tbody tr:last-child td {
            border-bottom: none;
        }
        .ky-table-badge {
            display: inline-block;
            background: #F0F4FA;
            color: var(--ky-text-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 6px;
            white-space: nowrap;
        }
        .ky-table-badge.hot {
            background: rgba(47, 111, 237, 0.1);
            color: var(--ky-primary);
        }
        .ky-table-badge.new {
            background: rgba(245, 166, 35, 0.12);
            color: #B87D0A;
        }

        .ky-summary-card {
            background: #fff;
            border-radius: var(--ky-radius-sm);
            border: 1px solid var(--ky-border);
            padding: 16px 18px;
            height: 100%;
            transition: var(--ky-transition);
        }
        .ky-summary-card:hover {
            border-color: var(--ky-primary);
            box-shadow: 0 4px 12px rgba(31, 92, 222, 0.1);
        }
        .ky-summary-card h6 {
            font-size: 15px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 6px;
        }
        .ky-summary-card p {
            font-size: 13px;
            color: var(--ky-text-muted);
            margin-bottom: 10px;
            line-height: 1.7;
        }
        .ky-summary-card .stat-num {
            font-size: 24px;
            font-weight: 700;
            color: var(--ky-primary);
            line-height: 1.2;
        }
        .ky-summary-card .stat-label {
            font-size: 12px;
            color: var(--ky-text-muted);
        }

        .ky-btn {
            display: inline-block;
            background: var(--ky-primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 10px 24px;
            border-radius: var(--ky-radius-sm);
            border: none;
            transition: var(--ky-transition);
            cursor: pointer;
            text-align: center;
            line-height: 1.5;
        }
        .ky-btn:hover {
            background: var(--ky-primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(31, 92, 222, 0.22);
        }
        .ky-btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--ky-primary);
            font-size: 15px;
            font-weight: 600;
            padding: 9px 22px;
            border-radius: var(--ky-radius-sm);
            border: 1.5px solid var(--ky-primary);
            transition: var(--ky-transition);
            cursor: pointer;
            text-align: center;
        }
        .ky-btn-outline:hover {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary-dark);
            border-color: var(--ky-primary-dark);
            transform: translateY(-1px);
        }
        .ky-btn-sm {
            padding: 7px 16px;
            font-size: 13px;
        }

        .ky-accordion .accordion-item {
            background: #fff;
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-sm) !important;
            margin-bottom: 10px;
            overflow: hidden;
            box-shadow: none;
        }
        .ky-accordion .accordion-button {
            background: #fff;
            color: var(--ky-text-dark);
            font-weight: 600;
            font-size: 15px;
            padding: 16px 20px;
            border: none;
            box-shadow: none;
            transition: var(--ky-transition);
        }
        .ky-accordion .accordion-button:not(.collapsed) {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            box-shadow: none;
        }
        .ky-accordion .accordion-button:focus {
            box-shadow: none;
            outline: none;
        }
        .ky-accordion .accordion-button::after {
            filter: invert(40%) sepia(70%) saturate(900%) hue-rotate(205deg);
        }
        .ky-accordion .accordion-body {
            background: #fff;
            font-size: 14px;
            color: var(--ky-text-muted);
            line-height: 1.9;
            padding: 16px 20px 20px;
        }

        .ky-pagination .page-link {
            color: var(--ky-primary);
            border: 1px solid var(--ky-border);
            border-radius: 8px !important;
            margin: 0 3px;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            transition: var(--ky-transition);
        }
        .ky-pagination .page-link:hover {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary-dark);
            border-color: var(--ky-tertiary-bg);
        }
        .ky-pagination .page-item.active .page-link {
            background: var(--ky-primary);
            border-color: var(--ky-primary);
            color: #fff;
            font-weight: 600;
        }
        .ky-pagination .page-item.disabled .page-link {
            color: #B0B8C5;
            background: #F5F7FA;
            border-color: var(--ky-border);
        }

        .ky-cta-section {
            background: var(--ky-text-dark);
            padding: 60px 0;
            border-radius: 0;
            margin-top: 20px;
        }
        .ky-cta-section h2 {
            color: #fff;
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .ky-cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            max-width: 600px;
            line-height: 1.9;
        }
        .ky-cta-form {
            background: #fff;
            border-radius: var(--ky-radius-md);
            padding: 24px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
        }
        .ky-cta-form label {
            font-size: 14px;
            font-weight: 600;
            color: var(--ky-text-dark);
            margin-bottom: 6px;
        }
        .ky-cta-form input,
        .ky-cta-form textarea,
        .ky-cta-form select {
            border: 1px solid var(--ky-tertiary-bg);
            border-radius: var(--ky-radius-sm);
            padding: 10px 14px;
            font-size: 14px;
            width: 100%;
            transition: var(--ky-transition);
            background: #fff;
            color: var(--ky-text-body);
        }
        .ky-cta-form input:focus,
        .ky-cta-form textarea:focus,
        .ky-cta-form select:focus {
            border-color: var(--ky-primary);
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.15);
            outline: none;
        }

        .ky-footer {
            background: #0F1C3F;
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px;
            font-size: 14px;
        }
        .ky-footer a {
            color: rgba(255, 255, 255, 0.75);
            transition: var(--ky-transition);
            line-height: 2;
        }
        .ky-footer a:hover { color: #8AB4FF; }
        .ky-footer h5 {
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            margin-bottom: 16px;
        }
        .ky-footer-brand {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .ky-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            margin-top: 40px;
            padding-top: 20px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 10px;
        }
        .ky-footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .ky-footer-bottom a:hover { color: #8AB4FF; }

        @media (max-width: 991px) {
            .ky-navbar .navbar-collapse {
                background: #fff;
                border-radius: 0 0 12px 12px;
                padding: 16px;
                box-shadow: 0 12px 28px rgba(31, 92, 222, 0.1);
                border: 1px solid var(--ky-border);
                margin-top: 4px;
            }
            .ky-nav-left, .ky-nav-right {
                flex-direction: column;
                align-items: flex-start;
                gap: 2px;
            }
            .ky-nav-center { display: none; }
            .ky-navbar .nav-link::after { display: none; }
            .ky-navbar .nav-link { padding: 10px 8px; width: 100%; }
            .ky-page-header h1 { font-size: 28px; }
            .ky-section { padding: 36px 0; }
            .ky-cta-section { padding: 40px 0; }
            .ky-cta-section h2 { font-size: 24px; }
        }
        @media (max-width: 576px) {
            .ky-page-header { padding: 28px 0 32px; }
            .ky-page-header h1 { font-size: 24px; }
            .ky-page-header .lead { font-size: 15px; }
            .ky-section-title { font-size: 22px; }
            .ky-table-wrap .table { font-size: 12px; }
            .ky-table-wrap .table thead th,
            .ky-table-wrap .table tbody td { padding: 10px 8px; }
            .ky-footer { padding: 36px 0 20px; }
            .ky-footer-bottom { flex-direction: column; text-align: center; }
            .ky-btn { width: 100%; padding: 10px 16px; }
            .ky-btn-outline { width: 100%; }
        }

/* roulang page: category5 */
:root {
            --ky-primary: #2F6FED;
            --ky-primary-dark: #1E56C8;
            --ky-primary-light: #4A87F2;
            --ky-secondary-bg: #E8F0FE;
            --ky-tertiary-bg: #D9E3F5;
            --ky-page-bg: #F5F7FA;
            --ky-section-bg: #FFFFFF;
            --ky-section-alt-bg: #EAF1FD;
            --ky-text-dark: #14213D;
            --ky-text-body: #1F2937;
            --ky-text-muted: #5A6B85;
            --ky-accent: #F5A623;
            --ky-border: #E6EDF8;
            --ky-radius-sm: 10px;
            --ky-radius-md: 14px;
            --ky-radius-lg: 18px;
            --ky-shadow: 0 8px 24px rgba(31, 92, 222, 0.08);
            --ky-shadow-hover: 0 12px 32px rgba(31, 92, 222, 0.14);
            --ky-font-stack: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --ky-transition: all 0.25s ease;
            --ky-container-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--ky-font-stack);
            background-color: var(--ky-page-bg);
            color: var(--ky-text-body);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--ky-primary);
            text-decoration: none;
            transition: var(--ky-transition);
        }

        a:hover {
            color: var(--ky-primary-dark);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--ky-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .ky-container {
            max-width: var(--ky-container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Navbar */
        .ky-navbar {
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--ky-border);
            box-shadow: 0 2px 8px rgba(31, 92, 222, 0.04);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 0;
            min-height: 64px;
        }

        .ky-navbar .navbar-brand {
            font-weight: 700;
            font-size: 26px;
            color: var(--ky-text-dark);
            letter-spacing: 1px;
            transition: var(--ky-transition);
            white-space: nowrap;
        }

        .ky-navbar .navbar-brand:hover {
            color: var(--ky-primary);
        }

        .ky-navbar .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--ky-text-body);
            padding: 8px 14px;
            position: relative;
            white-space: nowrap;
            transition: var(--ky-transition);
        }

        .ky-navbar .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--ky-primary);
            border-radius: 1px;
            transform: scaleX(0);
            transition: transform 0.25s ease;
        }

        .ky-navbar .nav-link:hover,
        .ky-navbar .nav-link.active {
            color: var(--ky-primary);
        }

        .ky-navbar .nav-link:hover::after,
        .ky-navbar .nav-link.active::after {
            transform: scaleX(1);
        }

        .ky-navbar .navbar-toggler {
            border: 1px solid var(--ky-primary);
            border-radius: 8px;
            padding: 6px 10px;
            background: #fff;
        }

        .ky-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.15);
            outline: none;
        }

        .ky-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='%232F6FED' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .ky-navbar .navbar-collapse {
            justify-content: space-between;
        }

        .ky-nav-left,
        .ky-nav-right {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .ky-nav-center {
            padding: 0 18px;
        }

        .ky-breadcrumb a {
            color: var(--ky-text-muted);
            font-weight: 500;
        }

        .ky-breadcrumb a:hover {
            color: var(--ky-primary);
        }

        .ky-breadcrumb .breadcrumb-item.active {
            color: var(--ky-primary);
            font-weight: 600;
        }

        /* Page Hero (inner page) */
        .ky-page-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center center;
            padding: 56px 0 64px;
            overflow: hidden;
        }

        .ky-page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(245, 247, 250, 0.95) 0%, rgba(232, 240, 254, 0.9) 50%, rgba(217, 227, 245, 0.85) 100%);
            z-index: 1;
        }

        .ky-page-hero .ky-container {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .ky-page-hero-content {
            max-width: 820px;
        }

        .ky-hero-badge {
            display: inline-block;
            background: var(--ky-primary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 18px;
        }

        .ky-page-hero h1 {
            font-size: 35px;
            font-weight: 700;
            color: var(--ky-text-dark);
            line-height: 1.35;
            margin-bottom: 18px;
        }

        .ky-page-hero .lead {
            color: var(--ky-text-body);
            font-size: 17px;
            max-width: 680px;
            margin-bottom: 26px;
            line-height: 1.85;
        }

        .ky-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--ky-radius-sm);
            font-weight: 600;
            font-size: 15px;
            transition: var(--ky-transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
        }

        .ky-btn-primary {
            background: var(--ky-primary);
            color: #fff;
        }

        .ky-btn-primary:hover {
            background: var(--ky-primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(47, 111, 237, 0.25);
        }

        .ky-btn-outline {
            background: transparent;
            color: var(--ky-primary);
            border: 1.5px solid var(--ky-primary);
        }

        .ky-btn-outline:hover {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary-dark);
            transform: translateY(-1px);
        }

        /* Section styles */
        .ky-section {
            padding: 72px 0;
        }

        .ky-section-alt {
            background: var(--ky-section-bg);
        }

        .ky-section-tight {
            padding: 48px 0;
        }

        .ky-section-title {
            font-size: 27px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .ky-section-subtitle {
            font-size: 16px;
            color: var(--ky-text-muted);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .ky-divider {
            width: 48px;
            height: 4px;
            background: var(--ky-primary);
            border-radius: 2px;
            margin-bottom: 16px;
        }

        /* Operation intro card */
        .ky-intro-block {
            background: var(--ky-section-bg);
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-lg);
            box-shadow: var(--ky-shadow);
            padding: 28px 32px;
            margin-bottom: 28px;
        }

        .ky-intro-block p {
            color: var(--ky-text-body);
            font-size: 16px;
            line-height: 1.85;
            margin-bottom: 14px;
        }

        .ky-intro-block p:last-child {
            margin-bottom: 0;
        }

        /* Operation card */
        .ky-op-card {
            background: var(--ky-section-bg);
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-md);
            box-shadow: var(--ky-shadow);
            overflow: hidden;
            transition: var(--ky-transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .ky-op-card:hover {
            box-shadow: var(--ky-shadow-hover);
            transform: translateY(-4px);
        }

        .ky-op-card-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

        .ky-op-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .ky-op-card:hover .ky-op-card-img img {
            transform: scale(1.05);
        }

        .ky-op-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .ky-op-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 8px;
        }

        .ky-op-card-desc {
            font-size: 14px;
            color: var(--ky-text-muted);
            line-height: 1.75;
            flex: 1;
            margin-bottom: 12px;
        }

        .ky-op-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 12px;
        }

        .ky-tag {
            display: inline-block;
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            font-size: 12px;
            font-weight: 500;
            padding: 3px 12px;
            border-radius: 16px;
            letter-spacing: 0.3px;
        }

        .ky-op-card-meta {
            font-size: 12px;
            color: var(--ky-text-muted);
            border-top: 1px solid var(--ky-border);
            padding-top: 10px;
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .ky-op-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* Data highlight */
        .ky-data-row {
            background: var(--ky-section-alt-bg);
            border-radius: var(--ky-radius-lg);
            padding: 40px 32px;
            margin-top: 20px;
        }

        .ky-data-item {
            text-align: center;
            padding: 16px;
        }

        .ky-data-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--ky-primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .ky-data-label {
            font-size: 14px;
            color: var(--ky-text-muted);
            font-weight: 500;
        }

        /* Process steps */
        .ky-step-item {
            display: flex;
            gap: 16px;
            margin-bottom: 18px;
        }

        .ky-step-num {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            background: var(--ky-primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .ky-step-content h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 4px;
        }

        .ky-step-content p {
            font-size: 14px;
            color: var(--ky-text-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* Accordion customization */
        .ky-accordion .accordion-item {
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-sm) !important;
            margin-bottom: 10px;
            overflow: hidden;
            background: var(--ky-section-bg);
            box-shadow: 0 2px 8px rgba(31, 92, 222, 0.04);
        }

        .ky-accordion .accordion-button {
            background: var(--ky-section-bg);
            color: var(--ky-text-dark);
            font-weight: 600;
            font-size: 16px;
            padding: 16px 20px;
            border: none;
            box-shadow: none;
            transition: var(--ky-transition);
        }

        .ky-accordion .accordion-button:not(.collapsed) {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            box-shadow: none;
        }

        .ky-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.15);
            border-color: transparent;
        }

        .ky-accordion .accordion-button::after {
            background-size: 14px;
            transition: transform 0.3s ease;
        }

        .ky-accordion .accordion-body {
            padding: 16px 20px 20px;
            color: var(--ky-text-body);
            font-size: 15px;
            line-height: 1.85;
            background: var(--ky-section-bg);
        }

        /* CTA section */
        .ky-cta-section {
            background: linear-gradient(135deg, #14213D 0%, #1E3A6E 60%, #2F6FED 100%);
            padding: 64px 0;
            border-radius: var(--ky-radius-lg);
            margin: 20px 0 0;
        }

        .ky-cta-section h2 {
            color: #fff;
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .ky-cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            margin-bottom: 24px;
            max-width: 560px;
        }

        .ky-cta-section .ky-btn-primary {
            background: #fff;
            color: var(--ky-primary-dark);
        }

        .ky-cta-section .ky-btn-primary:hover {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary-dark);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        }

        /* Footer */
        .ky-footer {
            background: #0F1C3F;
            color: rgba(255, 255, 255, 0.85);
            padding: 56px 0 0;
            margin-top: 64px;
        }

        .ky-footer .ky-container {
            padding-bottom: 20px;
        }

        .ky-footer-brand {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }

        .ky-footer p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
            margin-bottom: 12px;
        }

        .ky-footer h5 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

        .ky-footer a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            display: inline-block;
            margin-bottom: 8px;
            transition: var(--ky-transition);
        }

        .ky-footer a:hover {
            color: var(--ky-secondary-bg);
        }

        .ky-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 18px 0;
            margin-top: 28px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
        }

        .ky-footer-bottom p {
            margin-bottom: 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }

        .ky-footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13px;
            margin-bottom: 0;
        }

        /* Responsive */
        @media (max-width: 991px) {
            .ky-navbar .navbar-collapse {
                background: #fff;
                padding: 16px;
                border-radius: 0 0 12px 12px;
                box-shadow: 0 8px 24px rgba(31, 92, 222, 0.1);
            }

            .ky-nav-left,
            .ky-nav-right {
                flex-direction: column;
                align-items: flex-start;
                gap: 2px;
            }

            .ky-nav-center {
                padding: 8px 0;
                order: -1;
            }

            .ky-navbar .nav-link {
                padding: 8px 4px;
                width: 100%;
            }

            .ky-navbar .nav-link::after {
                left: 4px;
                right: 4px;
            }

            .ky-page-hero h1 {
                font-size: 28px;
            }

            .ky-section {
                padding: 48px 0;
            }

            .ky-section-title {
                font-size: 23px;
            }

            .ky-op-card-img {
                height: 160px;
            }

            .ky-data-number {
                font-size: 26px;
            }
        }

        @media (max-width: 576px) {
            .ky-page-hero {
                padding: 40px 0 48px;
            }

            .ky-page-hero h1 {
                font-size: 24px;
            }

            .ky-page-hero .lead {
                font-size: 15px;
            }

            .ky-section {
                padding: 36px 0;
            }

            .ky-section-title {
                font-size: 20px;
            }

            .ky-intro-block {
                padding: 20px;
            }

            .ky-op-card-img {
                height: 140px;
            }

            .ky-cta-section {
                padding: 44px 0;
                border-radius: var(--ky-radius-md);
            }

            .ky-cta-section h2 {
                font-size: 22px;
            }

            .ky-data-row {
                padding: 24px 16px;
            }

            .ky-data-number {
                font-size: 22px;
            }
        }

/* roulang page: category7 */
:root {
            --ky-primary: #2F6FED;
            --ky-primary-dark: #1E56C8;
            --ky-primary-light: #4A87F2;
            --ky-secondary-bg: #E8F0FE;
            --ky-tertiary-bg: #D9E3F5;
            --ky-page-bg: #F5F7FA;
            --ky-section-bg: #FFFFFF;
            --ky-section-alt-bg: #EAF1FD;
            --ky-text-dark: #14213D;
            --ky-text-body: #1F2937;
            --ky-text-muted: #5A6B85;
            --ky-accent: #F5A623;
            --ky-border: #E6EDF8;
            --ky-radius-sm: 10px;
            --ky-radius-md: 14px;
            --ky-radius-lg: 18px;
            --ky-shadow: 0 8px 24px rgba(31, 92, 222, 0.08);
            --ky-shadow-hover: 0 12px 32px rgba(31, 92, 222, 0.14);
            --ky-font-stack: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --ky-transition: all 0.25s ease;
            --ky-container-max: 1200px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--ky-font-stack);
            background-color: var(--ky-page-bg);
            color: var(--ky-text-body);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--ky-primary);
            text-decoration: none;
            transition: var(--ky-transition);
        }

        a:hover {
            color: var(--ky-primary-dark);
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--ky-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .ky-container {
            max-width: var(--ky-container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ========== Navbar ========== */
        .ky-navbar {
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--ky-border);
            box-shadow: 0 2px 8px rgba(31, 92, 222, 0.04);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 0;
            min-height: 64px;
        }

        .ky-navbar .navbar-brand {
            font-weight: 700;
            font-size: 26px;
            color: var(--ky-text-dark);
            letter-spacing: 1px;
            transition: var(--ky-transition);
            white-space: nowrap;
        }

        .ky-navbar .navbar-brand:hover {
            color: var(--ky-primary);
        }

        .ky-navbar .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--ky-text-body);
            padding: 8px 14px;
            position: relative;
            white-space: nowrap;
            transition: var(--ky-transition);
        }

        .ky-navbar .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--ky-primary);
            border-radius: 1px;
            transform: scaleX(0);
            transition: transform 0.25s ease;
        }

        .ky-navbar .nav-link:hover,
        .ky-navbar .nav-link.active {
            color: var(--ky-primary);
        }

        .ky-navbar .nav-link:hover::after,
        .ky-navbar .nav-link.active::after {
            transform: scaleX(1);
        }

        .ky-navbar .navbar-toggler {
            border: 1px solid var(--ky-primary);
            border-radius: 8px;
            padding: 6px 10px;
            background: #fff;
        }

        .ky-navbar .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.15);
            outline: none;
        }

        .ky-navbar .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='%232F6FED' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .ky-navbar .navbar-collapse {
            justify-content: space-between;
        }

        .ky-nav-left,
        .ky-nav-right {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .ky-nav-center {
            padding: 0 18px;
        }

        /* ========== Breadcrumb ========== */
        .ky-breadcrumb-wrap {
            background: var(--ky-section-bg);
            border-bottom: 1px solid var(--ky-border);
            padding: 10px 0;
        }

        .ky-breadcrumb {
            margin: 0;
            font-size: 14px;
        }

        .ky-breadcrumb a {
            color: var(--ky-text-muted);
            font-weight: 500;
        }

        .ky-breadcrumb a:hover {
            color: var(--ky-primary);
        }

        .ky-breadcrumb .breadcrumb-item.active {
            color: var(--ky-primary);
            font-weight: 600;
        }

        .ky-breadcrumb .breadcrumb-item+.breadcrumb-item::before {
            content: '/';
            color: var(--ky-tertiary-bg);
            font-weight: 400;
        }

        /* ========== Category Hero ========== */
        .ky-cat-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center center;
            padding: 72px 0 60px;
            overflow: hidden;
        }

        .ky-cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(245, 247, 250, 0.93) 0%, rgba(232, 240, 254, 0.86) 55%, rgba(217, 227, 245, 0.78) 100%);
            z-index: 1;
        }

        .ky-cat-hero .ky-container {
            position: relative;
            z-index: 2;
        }

        .ky-cat-badge {
            display: inline-block;
            background: var(--ky-primary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 18px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .ky-cat-hero h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--ky-text-dark);
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .ky-cat-hero .ky-cat-desc {
            font-size: 16px;
            color: var(--ky-text-muted);
            max-width: 700px;
            line-height: 1.8;
        }

        .ky-cat-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 20px;
            font-size: 13px;
            color: var(--ky-text-muted);
        }

        .ky-cat-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .ky-cat-meta i {
            color: var(--ky-primary);
        }

        /* ========== Main Content Area ========== */
        .ky-main-section {
            padding: 56px 0 72px;
        }

        .ky-content-col {
            padding-right: 28px;
        }

        .ky-sidebar-col {
            padding-left: 8px;
        }

        .ky-sticky-sidebar {
            position: sticky;
            top: 84px;
        }

        /* ========== Resource List ========== */
        .ky-resource-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 24px;
        }

        .ky-section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin: 0;
        }

        .ky-section-title-sm {
            font-size: 20px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin: 0 0 16px;
        }

        .ky-tag-filter {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .ky-filter-tag {
            display: inline-block;
            background: var(--ky-section-bg);
            border: 1px solid var(--ky-border);
            color: var(--ky-text-muted);
            font-size: 13px;
            font-weight: 500;
            padding: 5px 14px;
            border-radius: 20px;
            cursor: pointer;
            transition: var(--ky-transition);
        }

        .ky-filter-tag:hover,
        .ky-filter-tag.active {
            background: var(--ky-secondary-bg);
            border-color: var(--ky-primary);
            color: var(--ky-primary);
        }

        .ky-resource-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .ky-resource-item {
            background: var(--ky-section-bg);
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-md);
            padding: 20px 24px;
            box-shadow: var(--ky-shadow);
            transition: var(--ky-transition);
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }

        .ky-resource-item:hover {
            box-shadow: var(--ky-shadow-hover);
            transform: translateY(-2px);
            border-color: var(--ky-tertiary-bg);
        }

        .ky-resource-icon {
            width: 48px;
            height: 48px;
            min-width: 48px;
            border-radius: 12px;
            background: var(--ky-secondary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--ky-primary);
            font-size: 20px;
        }

        .ky-resource-body {
            flex: 1;
        }

        .ky-resource-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--ky-text-dark);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .ky-resource-excerpt {
            font-size: 14px;
            color: var(--ky-text-muted);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .ky-resource-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 12px;
            color: var(--ky-text-muted);
        }

        .ky-resource-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .ky-resource-tag {
            display: inline-block;
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            font-size: 12px;
            font-weight: 500;
            padding: 2px 10px;
            border-radius: 12px;
        }

        /* ========== Pagination ========== */
        .ky-pagination {
            margin-top: 32px;
            display: flex;
            justify-content: center;
        }

        .ky-pagination .pagination {
            gap: 6px;
        }

        .ky-pagination .page-link {
            border: 1px solid var(--ky-border);
            border-radius: 8px;
            color: var(--ky-primary);
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            background: var(--ky-section-bg);
            transition: var(--ky-transition);
        }

        .ky-pagination .page-link:hover {
            background: var(--ky-secondary-bg);
            border-color: var(--ky-primary);
            color: var(--ky-primary);
        }

        .ky-pagination .page-item.active .page-link {
            background: var(--ky-primary);
            border-color: var(--ky-primary);
            color: #fff;
        }

        .ky-pagination .page-item.disabled .page-link {
            color: var(--ky-tertiary-bg);
            pointer-events: none;
            background: transparent;
            border-color: var(--ky-border);
        }

        /* ========== Sidebar ========== */
        .ky-sidebar-card {
            background: var(--ky-section-bg);
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-md);
            padding: 20px;
            box-shadow: var(--ky-shadow);
            margin-bottom: 24px;
        }

        .ky-sidebar-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--ky-secondary-bg);
        }

        .ky-hot-item {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 10px 0;
            border-bottom: 1px solid var(--ky-border);
            transition: var(--ky-transition);
        }

        .ky-hot-item:last-child {
            border-bottom: none;
        }

        .ky-hot-item:hover {
            padding-left: 6px;
        }

        .ky-hot-img {
            width: 72px;
            height: 54px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .ky-hot-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .ky-hot-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--ky-text-body);
            line-height: 1.4;
            margin-bottom: 2px;
        }

        .ky-hot-meta {
            font-size: 11px;
            color: var(--ky-text-muted);
        }

        .ky-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .ky-cloud-tag {
            display: inline-block;
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            font-size: 12px;
            font-weight: 500;
            padding: 4px 14px;
            border-radius: 16px;
            transition: var(--ky-transition);
        }

        .ky-cloud-tag:hover {
            background: var(--ky-primary);
            color: #fff;
        }

        /* ========== Capability Cards ========== */
        .ky-cap-section {
            background: var(--ky-section-alt-bg);
            padding: 64px 0;
        }

        .ky-cap-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }

        .ky-cap-item {
            background: var(--ky-section-bg);
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-md);
            padding: 22px 20px;
            box-shadow: var(--ky-shadow);
            transition: var(--ky-transition);
            text-align: center;
        }

        .ky-cap-item:hover {
            box-shadow: var(--ky-shadow-hover);
            transform: translateY(-4px);
        }

        .ky-cap-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--ky-secondary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            color: var(--ky-primary);
            font-size: 22px;
        }

        .ky-cap-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 6px;
        }

        .ky-cap-desc {
            font-size: 13px;
            color: var(--ky-text-muted);
            line-height: 1.65;
        }

        /* ========== Process Section ========== */
        .ky-process-section {
            padding: 64px 0;
            background: var(--ky-section-bg);
        }

        .ky-process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
            margin-top: 36px;
        }

        .ky-step {
            position: relative;
            text-align: center;
            padding: 0 12px;
        }

        .ky-step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--ky-primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            position: relative;
            z-index: 2;
        }

        .ky-step::after {
            content: '';
            position: absolute;
            top: 22px;
            left: calc(50% + 28px);
            right: calc(-50% + 28px);
            height: 2px;
            background: var(--ky-tertiary-bg);
            z-index: 1;
        }

        .ky-step:last-child::after {
            display: none;
        }

        .ky-step h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--ky-text-dark);
            margin-bottom: 6px;
        }

        .ky-step p {
            font-size: 13px;
            color: var(--ky-text-muted);
            line-height: 1.65;
        }

        /* ========== FAQ ========== */
        .ky-faq-section {
            padding: 64px 0;
            background: var(--ky-page-bg);
        }

        .ky-accordion .accordion-item {
            border: 1px solid var(--ky-border);
            border-radius: var(--ky-radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--ky-section-bg);
            box-shadow: 0 2px 8px rgba(31, 92, 222, 0.04);
        }

        .ky-accordion .accordion-button {
            background: var(--ky-section-bg);
            color: var(--ky-text-dark);
            font-weight: 600;
            font-size: 15px;
            padding: 16px 20px;
            box-shadow: none;
            border: none;
        }

        .ky-accordion .accordion-button:not(.collapsed) {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary);
            box-shadow: none;
        }

        .ky-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.15);
            border-color: var(--ky-primary);
        }

        .ky-accordion .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232F6FED'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
            transition: transform 0.3s ease;
        }

        .ky-accordion .accordion-body {
            font-size: 14px;
            color: var(--ky-text-muted);
            line-height: 1.8;
            padding: 16px 20px;
            background: var(--ky-section-bg);
        }

        /* ========== CTA ========== */
        .ky-cta-section {
            background: var(--ky-text-dark);
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }

        .ky-cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(47, 111, 237, 0.2);
            pointer-events: none;
        }

        .ky-cta-section .ky-container {
            position: relative;
            z-index: 2;
        }

        .ky-cta-title {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .ky-cta-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.72);
            max-width: 560px;
            margin-bottom: 26px;
            line-height: 1.7;
        }

        .ky-cta-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            max-width: 620px;
        }

        .ky-cta-form input {
            flex: 1;
            min-width: 220px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--ky-radius-sm);
            color: #fff;
            padding: 12px 18px;
            font-size: 14px;
            transition: var(--ky-transition);
        }

        .ky-cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .ky-cta-form input:focus {
            outline: none;
            border-color: var(--ky-primary-light);
            background: rgba(255, 255, 255, 0.15);
            box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.3);
        }

        .ky-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--ky-primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 12px 24px;
            border-radius: var(--ky-radius-sm);
            border: none;
            cursor: pointer;
            transition: var(--ky-transition);
            text-decoration: none;
            white-space: nowrap;
        }

        .ky-btn:hover {
            background: var(--ky-primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(31, 92, 222, 0.3);
        }

        .ky-btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--ky-primary);
            font-size: 14px;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: var(--ky-radius-sm);
            border: 2px solid var(--ky-primary);
            cursor: pointer;
            transition: var(--ky-transition);
            text-decoration: none;
            white-space: nowrap;
        }

        .ky-btn-outline:hover {
            background: var(--ky-primary);
            color: #fff;
            transform: translateY(-1px);
        }

        .ky-btn-light {
            background: #fff;
            color: var(--ky-primary-dark);
        }

        .ky-btn-light:hover {
            background: var(--ky-secondary-bg);
            color: var(--ky-primary-dark);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
        }

        /* ========== Footer ========== */
        .ky-footer {
            background: #0F1C3F;
            color: rgba(255, 255, 255, 0.85);
            padding: 52px 0 28px;
        }

        .ky-footer .ky-container {
            max-width: var(--ky-container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .ky-footer-brand {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .ky-footer p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.75;
            margin-bottom: 0;
        }

        .ky-footer h5 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .ky-footer a {
            display: inline-block;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 6px;
            transition: var(--ky-transition);
        }

        .ky-footer a:hover {
            color: var(--ky-primary-light);
        }

        .ky-footer-bottom {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
        }

        .ky-footer-bottom p {
            margin: 0;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
        }

        .ky-footer-bottom a {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 0;
        }

        .ky-footer-bottom a:hover {
            color: var(--ky-primary-light);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1199px) {
            .ky-cap-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .ky-process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 20px;
            }
            .ky-step::after {
                display: none;
            }
        }

        @media (max-width: 991px) {
            .ky-navbar .navbar-collapse {
                background: #fff;
                border-radius: 0 0 12px 12px;
                padding: 16px 0;
                box-shadow: 0 8px 24px rgba(31, 92, 222, 0.08);
                border: 1px solid var(--ky-border);
                border-top: none;
            }
            .ky-nav-left,
            .ky-nav-right {
                flex-direction: column;
                align-items: flex-start;
                gap: 2px;
            }
            .ky-nav-center {
                padding: 8px 0;
                text-align: center;
            }
            .ky-navbar .nav-link {
                padding: 8px 16px;
                width: 100%;
            }
            .ky-navbar .nav-link::after {
                display: none;
            }
            .ky-cat-hero h1 {
                font-size: 28px;
            }
            .ky-content-col {
                padding-right: 0;
                margin-bottom: 32px;
            }
            .ky-sidebar-col {
                padding-left: 0;
            }
            .ky-sticky-sidebar {
                position: static;
            }
            .ky-resource-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 16px 18px;
            }
            .ky-cap-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .ky-cta-title {
                font-size: 24px;
            }
            .ky-cta-form input {
                min-width: 100%;
            }
        }

        @media (max-width: 767px) {
            .ky-cat-hero {
                padding: 48px 0 40px;
            }
            .ky-cat-hero h1 {
                font-size: 24px;
            }
            .ky-cat-hero .ky-cat-desc {
                font-size: 14px;
            }
            .ky-cat-meta {
                gap: 12px;
                font-size: 12px;
            }
            .ky-section-title {
                font-size: 20px;
            }
            .ky-main-section {
                padding: 40px 0 48px;
            }
            .ky-cap-section,
            .ky-process-section,
            .ky-faq-section {
                padding: 40px 0;
            }
            .ky-cap-grid {
                grid-template-columns: 1fr;
            }
            .ky-process-steps {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .ky-step {
                padding: 0;
            }
            .ky-step-num {
                margin-bottom: 10px;
            }
            .ky-cta-section {
                padding: 40px 0;
            }
            .ky-cta-title {
                font-size: 22px;
            }
            .ky-footer {
                padding: 40px 0 20px;
            }
            .ky-footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
            .ky-navbar .navbar-brand {
                font-size: 22px;
            }
        }

        @media (max-width: 575px) {
            .ky-cat-hero h1 {
                font-size: 22px;
            }
            .ky-cat-badge {
                font-size: 12px;
                padding: 4px 14px;
            }
            .ky-resource-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .ky-tag-filter {
                gap: 6px;
            }
            .ky-filter-tag {
                font-size: 12px;
                padding: 4px 12px;
            }
            .ky-cta-form {
                flex-direction: column;
            }
            .ky-btn,
            .ky-btn-outline,
            .ky-btn-light {
                width: 100%;
                justify-content: center;
            }
        }