/* roulang page: index */
:root {
            --primary: #4A8FE4;
            --primary-dark: #3A77C4;
            --primary-light: #EAF2FC;
            --accent: #FF8C42;
            --accent-dark: #F07A2D;
            --accent-light: #FFF1E8;
            --bg: #F7FAFC;
            --bg-alt: #EEF2F6;
            --white: #FFFFFF;
            --text: #1F2937;
            --text-light: #6B7280;
            --border: #E5EAF0;
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 6px;
            --shadow-sm: 0 1px 2px rgba(30, 60, 114, 0.05), 0 8px 24px rgba(30, 60, 114, 0.06);
            --shadow-lg: 0 12px 32px rgba(30, 60, 114, 0.10);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --nav-height: 76px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--white);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--primary-dark);
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-padding {
            padding: 88px 0;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 56px 0;
            }
            .container-custom {
                padding: 0 20px;
            }
        }

        .section-label {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 20px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin: 0 0 10px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.7;
            max-width: 640px;
            margin: 0;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 24px;
            }
            .section-subtitle {
                font-size: 15px;
            }
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(30, 60, 114, 0.04);
            height: var(--nav-height);
        }

        .site-header .navbar {
            padding: 0;
            height: 100%;
            position: relative;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.2;
        }

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

        .navbar-brand .brand-icon {
            width: 36px;
            height: 36px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            border-radius: 10px;
        }

        .navbar-brand .brand-icon svg {
            width: 18px;
            height: 18px;
        }

        .navbar-brand .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
        }

        .navbar-collapse {
            justify-content: center;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0 auto;
        }

        .main-nav .nav-link-custom {
            font-size: 15px;
            color: var(--text);
            padding: 8px 18px;
            border-radius: 8px;
            position: relative;
            transition: all 0.2s ease;
            font-weight: 400;
        }

        .main-nav .nav-link-custom:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .main-nav .nav-link-custom.active {
            color: var(--primary);
            font-weight: 600;
            background: var(--primary-light);
        }

        .main-nav .nav-link-custom.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 18px;
            right: 18px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-actions .header-search {
            width: 200px;
            height: 40px;
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 0 14px;
            font-size: 14px;
            background: var(--bg);
            transition: all 0.2s ease;
        }

        .header-actions .header-search:focus {
            outline: none;
            border-color: var(--primary);
            background: var(--white);
            box-shadow: 0 0 0 4px rgba(74, 143, 228, 0.12);
        }

        .header-actions .header-search::placeholder {
            color: var(--text-light);
        }

        .navbar-toggler {
            border: none;
            padding: 6px 8px;
            box-shadow: none !important;
        }

        .navbar-toggler:focus {
            box-shadow: none;
        }

        .navbar-toggler-icon {
            width: 20px;
            height: 20px;
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(31,41,55,0.7)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991.98px) {
            .site-header {
                height: 64px;
            }
            .site-header .navbar {
                padding: 0 16px;
            }
            .navbar-collapse {
                background: var(--white);
                border-radius: 0 0 16px 16px;
                padding: 16px 20px 20px;
                box-shadow: 0 16px 32px rgba(30, 60, 114, 0.12);
                border-bottom: 1px solid var(--border);
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
            }
            .main-nav {
                flex-direction: column;
                align-items: stretch;
                margin: 0 0 16px;
                gap: 2px;
            }
            .main-nav .nav-link-custom {
                padding: 12px 14px;
                border-radius: 8px;
            }
            .main-nav .nav-link-custom.active::after {
                display: none;
            }
            .header-actions {
                flex-direction: row;
                width: 100%;
            }
            .header-actions .header-search {
                flex: 1;
                width: auto;
            }
        }

        /* ===== Buttons ===== */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            border-radius: 10px;
            padding: 11px 28px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .btn-accent {
            background: var(--accent);
            color: var(--white);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(255, 140, 66, 0.3);
        }

        .btn-accent:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(255, 140, 66, 0.25);
        }

        .btn-outline {
            background: rgba(255, 255, 255, 0.85);
            color: var(--text);
            border: 1.5px solid var(--border);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--white);
            box-shadow: 0 4px 12px rgba(74, 143, 228, 0.12);
        }

        .btn-outline:active {
            background: var(--primary-light);
        }

        .btn-primary-custom {
            background: var(--primary);
            color: var(--white);
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: var(--white);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(74, 143, 228, 0.3);
        }

        .btn-primary-custom:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(74, 143, 228, 0.25);
        }

        .btn:focus-visible,
        .btn-custom:focus-visible {
            outline: 3px solid rgba(74, 143, 228, 0.4);
            outline-offset: 2px;
        }

        .btn-sm-custom {
            padding: 8px 18px;
            font-size: 14px;
            border-radius: 8px;
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            background-color: var(--bg);
            min-height: 540px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(98deg, rgba(255, 255, 255, 0.96) 18%, rgba(255, 255, 255, 0.78) 48%, rgba(255, 255, 255, 0.25) 80%);
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to bottom, transparent, var(--bg));
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            padding: 80px 0 120px;
        }

        .hero-notice {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.9);
            border: 1px solid var(--border);
            border-radius: 30px;
            padding: 6px 16px 6px 8px;
            margin-bottom: 28px;
            box-shadow: var(--shadow-sm);
        }

        .hero-notice .notice-tag {
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 20px;
        }

        .hero-notice .notice-text {
            font-size: 13px;
            color: var(--text);
        }

        .hero-notice .notice-link {
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            white-space: nowrap;
        }

        .hero-title {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.22;
            color: var(--text);
            margin: 0 0 18px;
            letter-spacing: -0.02em;
        }

        .hero-title span {
            color: var(--primary);
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.75;
            color: var(--text-light);
            margin: 0 0 32px;
            max-width: 560px;
        }

        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: 420px;
            }
            .hero-content {
                padding: 56px 0 110px;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-notice {
                flex-wrap: wrap;
                border-radius: 16px;
            }
        }

        /* ===== Countdown ===== */
        .countdown-wrap {
            position: relative;
            z-index: 5;
            margin-top: -64px;
            margin-bottom: 0;
        }

        .countdown-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            border-top: 4px solid var(--primary);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .countdown-left {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .countdown-label {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            white-space: nowrap;
            margin: 0;
        }

        .countdown-state-done {
            color: var(--primary);
            font-size: 18px;
            font-weight: 700;
            display: none;
        }

        .countdown-blocks {
            display: flex;
            align-items: center;
            gap: 8px;
            transition: opacity 0.4s ease;
        }

        .cd-block {
            display: flex;
            align-items: center;
            background: var(--primary-light);
            border-radius: 10px;
            padding: 8px 12px;
            min-width: 56px;
            justify-content: center;
        }

        .cd-block .cd-num {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .cd-block .cd-label {
            font-size: 11px;
            color: var(--text-light);
            margin-left: 4px;
        }

        .cd-block.sep {
            background: transparent;
            padding: 0;
            min-width: auto;
            font-size: 18px;
            color: var(--text-light);
            font-weight: 600;
        }

        .countdown-stats {
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .countdown-stats .stat-item {
            text-align: center;
            padding: 6px 16px;
            background: var(--bg);
            border-radius: 10px;
            min-width: 80px;
        }

        .countdown-stats .stat-item .stat-label {
            display: block;
            font-size: 12px;
            color: var(--text-light);
            margin-bottom: 2px;
        }

        .countdown-stats .stat-item .stat-value {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            font-variant-numeric: tabular-nums;
        }

        @media (max-width: 768px) {
            .countdown-wrap {
                margin-top: -50px;
            }
            .countdown-card {
                padding: 22px 20px;
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }
            .cd-block {
                padding: 6px 8px;
                min-width: 46px;
            }
            .cd-block .cd-num {
                font-size: 18px;
            }
            .cd-block .cd-label {
                font-size: 10px;
            }
            .countdown-stats {
                width: 100%;
                justify-content: flex-start;
            }
            .countdown-stats .stat-item {
                flex: 1;
                min-width: 0;
            }
        }

        /* ===== Highlights ===== */
        .highlights-section {
            background: var(--white);
        }

        .highlights-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .highlight-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 30px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .highlight-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: rgba(74, 143, 228, 0.3);
        }

        .highlight-card:nth-child(even) {
            margin-top: 32px;
        }

        .highlight-card .hc-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            transition: background 0.3s ease;
        }

        .highlight-card:hover .hc-icon {
            background: var(--accent-light);
        }

        .highlight-card .hc-icon svg {
            width: 22px;
            height: 22px;
            stroke: var(--primary);
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .highlight-card:hover .hc-icon svg {
            stroke: var(--accent);
        }

        .highlight-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 10px;
        }

        .highlight-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }

        @media (max-width: 768px) {
            .highlights-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .highlight-card:nth-child(even) {
                margin-top: 0;
            }
            .highlight-card {
                padding: 24px 20px;
            }
        }

        /* ===== Image Wall ===== */
        .gallery-section {
            background: var(--bg);
        }

        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            grid-auto-rows: 220px;
            gap: 20px;
            margin-top: 40px;
        }

        .gallery-item {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            cursor: pointer;
            transition: all 0.35s ease;
        }

        .gallery-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .gallery-item:hover {
            box-shadow: var(--shadow-lg);
        }

        .gallery-item:hover img {
            transform: scale(1.04);
        }

        .gallery-item.featured {
            grid-row: span 2;
        }

        .gallery-item .gallery-overlay {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            padding: 40px 18px 14px;
            background: linear-gradient(to top, rgba(15, 23, 42, 0.65), transparent);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            opacity: 0;
            transform: translateY(6px);
            transition: all 0.3s ease;
        }

        .gallery-item:hover .gallery-overlay {
            opacity: 1;
            transform: translateY(0);
        }

        @media (max-width: 992px) {
            .gallery-grid {
                grid-template-columns: repeat(2, 1fr);
                grid-auto-rows: 200px;
            }
            .gallery-item.featured {
                grid-row: span 2;
            }
        }

        @media (max-width: 576px) {
            .gallery-grid {
                grid-template-columns: 1fr;
                grid-auto-rows: 240px;
            }
            .gallery-item.featured {
                grid-row: span 1;
            }
            .gallery-item .gallery-overlay {
                opacity: 1;
                transform: none;
            }
        }

        /* ===== CTA Form Section ===== */
        .cta-section {
            background: var(--white);
            position: relative;
        }

        .cta-card {
            background: linear-gradient(135deg, #F0F6FE 0%, #EAF2FC 60%, #FDF3EA 100%);
            border-radius: 24px;
            border: 1px solid var(--border);
            padding: 60px 56px;
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .cta-info .cta-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin: 0 0 16px;
        }

        .cta-info .cta-desc {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.75;
            margin: 0 0 24px;
        }

        .cta-points {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .cta-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text);
        }

        .cta-points li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
        }

        .cta-form-card {
            background: var(--white);
            border-radius: 18px;
            box-shadow: var(--shadow-sm);
            padding: 36px 32px;
        }

        .cta-form-card .form-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .cta-form-card .form-control {
            height: 50px;
            border-radius: 10px;
            border: 1px solid var(--border);
            padding: 0 16px;
            font-size: 15px;
            transition: all 0.2s ease;
            background: var(--white);
        }

        .cta-form-card textarea.form-control {
            height: auto;
            padding: 12px 16px;
            resize: vertical;
            min-height: 80px;
        }

        .cta-form-card .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(74, 143, 228, 0.12);
            outline: none;
        }

        .cta-form-card .form-control::placeholder {
            color: #9CA3AF;
        }

        .cta-form-card .btn-submit {
            width: 100%;
            height: 50px;
            font-size: 16px;
        }

        .cta-form-tip {
            font-size: 12px;
            color: var(--text-light);
            text-align: center;
            margin-top: 14px;
        }

        @media (max-width: 992px) {
            .cta-card {
                grid-template-columns: 1fr;
                padding: 40px 28px;
                gap: 32px;
            }
            .cta-info .cta-title {
                font-size: 24px;
            }
        }

        @media (max-width: 576px) {
            .cta-card {
                border-radius: 16px;
                padding: 28px 20px;
            }
            .cta-form-card {
                padding: 24px 20px;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg);
        }

        .faq-accordion {
            margin-top: 40px;
            max-width: 860px;
            margin-left: auto;
            margin-right: auto;
        }

        .faq-accordion .accordion-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 14px !important;
            margin-bottom: 16px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow 0.3s ease;
        }

        .faq-accordion .accordion-item:hover {
            box-shadow: 0 10px 28px rgba(30, 60, 114, 0.08);
        }

        .faq-accordion .accordion-button {
            background: var(--white);
            color: var(--text);
            font-size: 16px;
            font-weight: 600;
            padding: 20px 24px;
            line-height: 1.5;
            border: none;
            box-shadow: none;
        }

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

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 4px rgba(74, 143, 228, 0.12);
            border-color: rgba(74, 143, 228, 0.3);
        }

        .faq-accordion .accordion-button::after {
            background-size: 18px;
            transition: transform 0.25s ease;
        }

        .faq-accordion .accordion-body {
            padding: 8px 24px 22px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.75;
            background: var(--white);
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            filter: invert(45%) sepia(80%) saturate(400%) hue-rotate(190deg);
        }

        /* ===== News / Latest ===== */
        .news-section {
            background: var(--white);
        }

        .news-section .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }

        .news-section .section-header .section-subtitle {
            margin: 0;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 24px 28px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

        .news-item:hover {
            box-shadow: var(--shadow-lg);
            border-color: rgba(74, 143, 228, 0.25);
            transform: translateX(4px);
        }

        .news-badge {
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            white-space: nowrap;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .news-badge.orange {
            background: var(--accent-light);
            color: var(--accent-dark);
        }

        .news-body {
            flex: 1;
            min-width: 0;
        }

        .news-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 6px;
            line-height: 1.4;
        }

        .news-body h3 a {
            color: var(--text);
            transition: color 0.2s ease;
        }

        .news-body h3 a:hover {
            color: var(--primary);
        }

        .news-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.65;
            margin: 0 0 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .news-date {
            font-size: 13px;
            color: var(--text-light);
        }

        .news-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap 0.2s ease;
        }

        .news-link:hover {
            gap: 8px;
            color: var(--primary-dark);
        }

        .news-empty {
            text-align: center;
            padding: 80px 20px;
            background: var(--bg);
            border-radius: 16px;
            border: 1px dashed var(--border);
            color: var(--text-light);
            font-size: 15px;
        }

        .news-empty .empty-icon {
            display: block;
            margin: 0 auto 16px;
            width: 56px;
            height: 56px;
            color: #C0CBD8;
        }

        @media (max-width: 768px) {
            .news-item {
                flex-direction: column;
                padding: 20px 18px;
                gap: 10px;
            }
            .news-meta {
                flex-wrap: wrap;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #1E293B;
            color: #CBD5E1;
            padding-top: 64px;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .site-footer .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .site-footer .footer-brand .brand-icon svg {
            width: 16px;
            height: 16px;
        }

        .site-footer .footer-brand span {
            font-size: 17px;
            font-weight: 700;
            color: #F8FAFC;
        }

        .site-footer .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #94A3B8;
            margin: 0;
            max-width: 280px;
        }

        .site-footer .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #F1F5F9;
            margin: 0 0 16px;
        }

        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .site-footer .footer-links a {
            color: #94A3B8;
            font-size: 14px;
            transition: color 0.2s ease;
        }

        .site-footer .footer-links a:hover {
            color: #F8FAFC;
        }

        .site-footer .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
            font-size: 14px;
            color: #94A3B8;
        }

        .site-footer .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .site-footer .footer-contact svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
            margin-top: 3px;
            color: var(--primary);
        }

        .site-footer .footer-bottom {
            border-top: 1px solid #334155;
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .site-footer .footer-bottom p {
            margin: 0;
            font-size: 13px;
            color: #94A3B8;
        }

        .site-footer .footer-bottom a {
            color: #94A3B8;
            font-size: 13px;
        }

        .site-footer .footer-bottom a:hover {
            color: #F8FAFC;
        }

        @media (max-width: 992px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 576px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Utility ===== */
        .text-primary-custom {
            color: var(--primary) !important;
        }

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

        .divider-line {
            height: 1px;
            background: var(--border);
            border: none;
            margin: 0;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 10px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg);
        }

        ::-webkit-scrollbar-thumb {
            background: #C0CBD8;
            border-radius: 5px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: #8FA3B8;
        }

/* roulang page: category1 */
:root {
            --primary: #4A8FE4;
            --primary-dark: #3B7DD0;
            --primary-light: #E8F1FC;
            --accent: #FF8C42;
            --accent-dark: #F07C2A;
            --bg: #F7FAFC;
            --bg-alt: #EEF2F6;
            --white: #FFFFFF;
            --text: #1F2937;
            --text-muted: #6B7280;
            --border: #E5EAF0;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --radius-tag: 6px;
            --shadow: 0 1px 2px rgba(30, 60, 114, 0.05), 0 8px 24px rgba(30, 60, 114, 0.06);
            --shadow-hover: 0 12px 32px rgba(30, 60, 114, 0.10);
            --font-stack: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            background: var(--bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 16px;
            margin: 0;
            padding: 0;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(30, 60, 114, 0.04);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .site-header .container-custom {
            height: 72px;
        }
        .navbar {
            padding: 0;
            height: 100%;
            min-height: 0;
            flex-wrap: nowrap;
        }
        .navbar-brand {
            padding: 0;
            margin-right: 36px;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
        }
        .navbar-brand:hover {
            color: var(--text);
        }
        .brand-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .brand-icon svg {
            width: 20px;
            height: 20px;
        }
        .brand-text {
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-link-custom {
            display: block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            position: relative;
            transition: all .2s ease;
        }
        .nav-link-custom:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-link-custom.active {
            color: var(--primary);
            font-weight: 600;
            background: var(--primary-light);
        }
        .nav-link-custom.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-search {
            width: 200px;
            height: 40px;
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 0 16px;
            font-size: 14px;
            background: var(--bg);
            transition: all .2s ease;
            outline: none;
        }
        .header-search:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(74, 143, 228, 0.15);
        }
        .navbar-toggler {
            border: none;
            padding: 4px;
            border-radius: 8px;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(74, 143, 228, 0.2);
        }
        .navbar-toggler-icon {
            display: inline-block;
            width: 24px;
            height: 24px;
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231F2937' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .btn-custom {
            border-radius: var(--radius-sm);
            font-weight: 600;
            padding: 10px 20px;
            transition: all .2s ease;
        }
        .btn-accent {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(255, 140, 66, 0.3);
        }
        .btn-sm-custom {
            padding: 8px 18px;
            font-size: 14px;
            border-radius: var(--radius-sm);
        }
        .page-hero {
            background: linear-gradient(120deg, rgba(255, 255, 255, 0.92) 10%, rgba(255, 255, 255, 0.75) 50%, rgba(255, 255, 255, 0.55) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 72px 0 84px;
            border-bottom: 1px solid var(--border);
        }
        .page-hero .page-label {
            display: inline-flex;
            align-items: center;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 30px;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .page-hero h1 {
            font-size: 40px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
            line-height: 1.25;
        }
        .page-hero p {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 0;
            line-height: 1.7;
        }
        .section-block {
            padding: 80px 0;
        }
        .section-block.alt {
            background: var(--bg-alt);
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-muted);
            margin-bottom: 40px;
            max-width: 720px;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .feature-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow);
            border: 1px solid rgba(229, 234, 240, 0.6);
            transition: all .25s ease;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .feature-card .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
        }
        .feature-card .feature-icon svg {
            width: 24px;
            height: 24px;
            stroke: var(--primary);
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.65;
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }
        .process-step {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow);
            border-top: 3px solid var(--primary);
            position: relative;
            transition: all .25s ease;
        }
        .process-step:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .process-step::before {
            counter-increment: step;
            content: counter(step);
            display: block;
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            opacity: 0.25;
            line-height: 1;
            margin-bottom: 12px;
        }
        .process-step h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }
        .rule-panel {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
        }
        .rule-list {
            padding: 36px;
        }
        .rule-item {
            display: flex;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
        }
        .rule-item:last-child {
            border-bottom: none;
        }
        .rule-item .rule-num {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 14px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .rule-item p {
            font-size: 15px;
            margin: 0;
            color: var(--text);
            line-height: 1.6;
        }
        .rule-image {
            position: relative;
            min-height: 280px;
        }
        .rule-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .scene-card {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 20px;
            margin-top: 0;
        }
        .scene-card h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text);
        }
        .scene-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .scene-card li {
            position: relative;
            padding-left: 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 8px;
        }
        .scene-card li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 9px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }
        .table-section-row {
            align-items: stretch;
        }
        .table-wrap {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 24px;
            overflow-x: auto;
            height: 100%;
        }
        .table-custom {
            width: 100%;
            border-collapse: collapse;
        }
        .table-custom th {
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 14px;
            font-weight: 600;
            text-align: left;
            padding: 14px 16px;
            border-bottom: 2px solid rgba(74, 143, 228, 0.2);
            white-space: nowrap;
        }
        .table-custom td {
            padding: 14px 16px;
            font-size: 14px;
            border-bottom: 1px solid var(--border);
            color: var(--text);
        }
        .table-custom tr:last-child td {
            border-bottom: none;
        }
        .table-custom tbody tr:hover td {
            background: var(--bg);
        }
        .notice-box {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 28px;
            height: 100%;
            border-left: 4px solid var(--accent);
        }
        .notice-box h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text);
        }
        .notice-box ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .notice-box li {
            position: relative;
            padding-left: 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 14px;
        }
        .notice-box li:last-child {
            margin-bottom: 0;
        }
        .notice-box li::before {
            content: '!';
            position: absolute;
            left: 0;
            top: 1px;
            width: 17px;
            height: 17px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .faq-wrap {
            max-width: 860px;
        }
        .accordion-item {
            background: var(--white);
            border-radius: var(--radius-md) !important;
            border: 1px solid var(--border) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: 0 1px 2px rgba(30, 60, 114, 0.03);
        }
        .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            background: var(--white);
            padding: 18px 20px;
            box-shadow: none !important;
            transition: all .2s ease;
        }
        .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: var(--primary-light);
        }
        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(74, 143, 228, 0.15);
        }
        .accordion-button::after {
            background-size: 16px;
        }
        .accordion-body {
            padding: 0 20px 18px 20px;
            padding-top: 14px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            border-top: 1px solid var(--border);
        }
        .cta-section {
            background: var(--primary-light);
            border-radius: var(--radius-lg);
            padding: 48px;
            box-shadow: var(--shadow);
        }
        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .cta-section p {
            color: var(--text-muted);
            margin-bottom: 28px;
        }
        .cta-form .form-control {
            height: 50px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            padding: 0 16px;
            font-size: 15px;
            background: var(--white);
            transition: all .2s ease;
            color: var(--text);
        }
        .cta-form textarea.form-control {
            height: 100px;
            padding: 12px 16px;
            resize: none;
        }
        .cta-form .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(74, 143, 228, 0.15);
            background: #fff;
        }
        .btn-submit {
            min-width: 180px;
            height: 50px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            background: var(--accent);
            border: none;
            color: #fff;
            transition: all .2s ease;
            padding: 0 28px;
        }
        .btn-submit:hover {
            background: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(255, 140, 66, 0.3);
            color: #fff;
        }
        .btn-submit:focus {
            box-shadow: 0 0 0 3px rgba(255, 140, 66, 0.25);
        }
        .related-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .related-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            overflow: hidden;
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 24px;
            transition: all .25s ease;
            color: var(--text);
        }
        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            color: var(--text);
        }
        .related-card img {
            width: 88px;
            height: 88px;
            object-fit: cover;
            border-radius: var(--radius-md);
            flex-shrink: 0;
        }
        .related-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .related-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.5;
        }
        .site-footer {
            background: #1E293B;
            color: #94A3B8;
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 0.8fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(148, 163, 184, 0.15);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #94A3B8;
            margin-bottom: 0;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #E2E8F0;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: #94A3B8;
            transition: color .2s ease;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            margin-bottom: 10px;
            color: #94A3B8;
        }
        .footer-contact svg {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
        }
        .footer-meta {
            font-size: 14px;
            color: #94A3B8;
            margin-bottom: 6px;
        }
        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 13px;
            color: #64748B;
        }
        @media (max-width: 991.98px) {
            .site-header .container-custom {
                height: auto;
                padding-top: 10px;
                padding-bottom: 10px;
            }
            .navbar {
                height: auto;
                padding: 0;
            }
            .navbar-collapse {
                background: var(--white);
                border-radius: var(--radius-md);
                padding: 16px;
                box-shadow: var(--shadow);
                margin-top: 12px;
                border: 1px solid var(--border);
            }
            .main-nav {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                margin-bottom: 12px;
            }
            .nav-link-custom {
                text-align: center;
                padding: 12px;
            }
            .nav-link-custom.active::after {
                display: none;
            }
            .header-actions {
                flex-direction: column;
                align-items: stretch;
                gap: 10px;
            }
            .header-search {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-hero {
                padding: 56px 0 64px;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
            }
            .rule-panel {
                grid-template-columns: 1fr;
            }
            .rule-image {
                min-height: 220px;
            }
        }
        @media (max-width: 767.98px) {
            .page-hero h1 {
                font-size: 30px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .section-block {
                padding: 56px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .cta-section {
                padding: 28px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .page-hero p {
                font-size: 15px;
            }
        }
        @media (max-width: 575.98px) {
            .container-custom {
                padding-left: 18px;
                padding-right: 18px;
            }
            .brand-text {
                font-size: 17px;
            }
            .page-hero {
                padding: 44px 0 52px;
            }
            .table-wrap {
                padding: 14px;
            }
            .table-custom th,
            .table-custom td {
                padding: 10px 12px;
                font-size: 13px;
            }
            .cta-section {
                padding: 22px;
            }
            .cta-section h2 {
                font-size: 22px;
            }
            .related-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .related-card img {
                width: 100%;
                height: 180px;
            }
        }

/* roulang page: article */
:root {
            --primary: #4A8FE4;
            --primary-dark: #3678C3;
            --primary-light: #E8F1FC;
            --accent: #FF8C42;
            --accent-dark: #E67A2F;
            --accent-light: #FFF1E8;
            --bg: #F7FAFC;
            --bg-alt: #EEF2F6;
            --white: #ffffff;
            --text: #1F2937;
            --text-light: #6B7280;
            --border: #E5EAF0;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow: 0 1px 2px rgba(30,60,114,.05),0 8px 24px rgba(30,60,114,.06);
            --shadow-hover: 0 12px 32px rgba(30,60,114,.10);
            --transition: all .25s ease;
            --font-family: -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.65;
            color: var(--text);
            background: var(--bg);
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--primary);
            transition: color .2s ease;
        }

        a:hover {
            color: var(--primary-dark);
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid rgba(74,143,228,.5);
            outline-offset: 2px;
        }

        .site-header {
            background: var(--white);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 8px rgba(30,60,114,.04);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .site-header .navbar {
            min-height: 72px;
            padding: 0;
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin: 0;
            font-size: 18px;
            font-weight: 800;
            color: var(--text);
            text-decoration: none;
            letter-spacing: .2px;
        }

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

        .brand-icon {
            width: 34px;
            height: 34px;
            background: var(--primary);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 10px rgba(74,143,228,.25);
            flex-shrink: 0;
        }

        .brand-icon svg {
            width: 18px;
            height: 18px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            margin: 0 auto 0 40px;
        }

        .nav-link-custom {
            position: relative;
            display: inline-flex;
            align-items: center;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            text-decoration: none;
            padding: 10px 4px;
            transition: color .2s ease;
        }

        .nav-link-custom:hover {
            color: var(--primary);
        }

        .nav-link-custom.active {
            color: var(--primary);
        }

        .nav-link-custom.active::after {
            content: '';
            position: absolute;
            left: 4px;
            right: 4px;
            bottom: 0;
            height: 3px;
            border-radius: 3px 3px 0 0;
            background: var(--primary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .header-search {
            height: 40px;
            width: 200px;
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 0 18px;
            font-size: 14px;
            color: var(--text);
            background: var(--bg);
            outline: none;
            transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
        }

        .header-search::placeholder {
            color: var(--text-light);
        }

        .header-search:focus {
            border-color: var(--primary);
            background: var(--white);
            box-shadow: 0 0 0 4px rgba(74,143,228,.12);
        }

        .btn-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            font-weight: 600;
            text-decoration: none;
            border: none;
            cursor: pointer;
            line-height: 1;
            transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 6px 16px rgba(255,140,66,.28);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 10px 24px rgba(255,140,66,.4);
        }

        .btn-accent:active {
            transform: translateY(0);
            box-shadow: 0 4px 10px rgba(255,140,66,.3);
        }

        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 16px rgba(74,143,228,.25);
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 10px 24px rgba(74,143,228,.35);
        }

        .btn-sm-custom {
            height: 40px;
            padding: 0 20px;
            font-size: 14px;
        }

        .btn-lg-custom {
            height: 50px;
            padding: 0 28px;
            font-size: 15px;
            border-radius: 12px;
        }

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

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(74,143,228,.15);
            outline: none;
        }

        .navbar-toggler-icon {
            width: 20px;
            height: 20px;
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231F2937' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .breadcrumb-wrap {
            background: var(--bg);
            padding: 18px 0 0;
        }

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

        .breadcrumb-item a {
            color: var(--text-light);
            text-decoration: none;
            transition: color .2s ease;
        }

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

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

        .breadcrumb-item+.breadcrumb-item::before {
            color: #C0C8D0;
        }

        .article-header-section {
            padding: 28px 0 20px;
            background: var(--bg);
        }

        .article-head-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow);
        }

        .article-cat-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }

        .article-head-card h1 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.35;
            color: var(--text);
            margin: 0 0 14px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .article-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-light);
            font-size: 14px;
        }

        .article-date svg {
            width: 16px;
            height: 16px;
        }

        .article-summary {
            background: var(--bg);
            border-left: 4px solid var(--primary);
            border-radius: 0 10px 10px 0;
            padding: 16px 20px;
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.75;
            max-height: 110px;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 4;
            -webkit-box-orient: vertical;
        }

        .article-content-section {
            padding: 24px 0 56px;
            background: var(--bg);
        }

        .article-content-card {
            max-width: 780px;
            margin: 0 auto;
        }

        .article-body {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 48px;
            box-shadow: var(--shadow);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            word-wrap: break-word;
        }

        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            line-height: 1.4;
            margin: 36px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border);
            color: var(--text);
        }

        .article-body h2:first-child {
            margin-top: 0;
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.4;
            margin: 28px 0 12px;
            color: var(--text);
        }

        .article-body p {
            margin: 0 0 18px;
        }

        .article-body img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            margin: 20px 0;
            box-shadow: var(--shadow);
        }

        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: var(--bg);
            padding: 16px 20px;
            border-radius: 0 10px 10px 0;
            margin: 20px 0;
            color: var(--text-light);
            font-size: 15px;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 18px;
            padding-left: 24px;
        }

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 15px;
            border: 1px solid var(--border);
        }

        .article-body th,
        .article-body td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }

        .article-body th {
            background: var(--bg);
            font-weight: 700;
        }

        .article-body code {
            background: var(--bg-alt);
            color: var(--primary-dark);
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 14px;
            font-family: "SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
        }

        .article-empty-section {
            padding: 80px 24px;
            background: var(--bg);
        }

        .article-empty-card {
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 64px 32px;
            box-shadow: var(--shadow);
        }

        .empty-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-light);
        }

        .empty-icon svg {
            width: 40px;
            height: 40px;
        }

        .article-empty-card h1 {
            font-size: 28px;
            font-weight: 800;
            margin: 0 0 10px;
        }

        .article-empty-card p {
            color: var(--text-light);
            margin: 0 0 24px;
        }

        .related-section {
            padding: 56px 0 64px;
            background: var(--white);
            border-top: 1px solid var(--border);
        }

        .section-head {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 800;
            margin: 0 0 8px;
            color: var(--text);
        }

        .section-head p {
            color: var(--text-light);
            font-size: 15px;
            margin: 0;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            display: flex;
            flex-direction: column;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            text-decoration: none;
            color: var(--text);
            box-shadow: var(--shadow);
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(74,143,228,.3);
            color: var(--text);
        }

        .related-card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-alt);
        }

        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .related-card:hover .related-card-img img {
            transform: scale(1.03);
        }

        .related-card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .related-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            margin: 0 0 8px;
            transition: color .2s ease;
        }

        .related-card:hover .related-card-body h3 {
            color: var(--primary);
        }

        .related-card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0 0 16px;
            flex: 1;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
        }

        .text-link svg {
            width: 14px;
            height: 14px;
            transition: transform .2s ease;
        }

        .related-card:hover .text-link svg {
            transform: translateX(3px);
        }

        .tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 6px;
            margin-bottom: 12px;
            width: fit-content;
        }

        .tag-blue {
            background: var(--primary-light);
            color: var(--primary);
        }

        .tag-orange {
            background: var(--accent-light);
            color: var(--accent);
        }

        .tag-gray {
            background: var(--bg-alt);
            color: var(--text-light);
        }

        .article-cta {
            padding: 56px 0;
            background: var(--bg);
            border-top: 1px solid var(--border);
        }

        .cta-card {
            background: var(--primary-light);
            border-radius: var(--radius-lg);
            padding: 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
            box-shadow: inset 0 2px 8px rgba(74,143,228,.04);
        }

        .cta-info h2 {
            font-size: 24px;
            font-weight: 800;
            margin: 0 0 8px;
            color: var(--text);
        }

        .cta-info p {
            margin: 0;
            color: var(--text-light);
            font-size: 15px;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }

        .cta-form input {
            height: 50px;
            min-width: 200px;
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 0 18px;
            font-size: 14px;
            color: var(--text);
            background: var(--white);
            outline: none;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .cta-form input::placeholder {
            color: var(--text-light);
        }

        .cta-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(74,143,228,.12);
        }

        .site-footer {
            background: #1E293B;
            color: #94A3B8;
            padding: 56px 0 24px;
        }

        .site-footer a {
            color: #94A3B8;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 32px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #F1F5F9;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.75;
            color: #94A3B8;
            max-width: 320px;
            margin: 0;
        }

        .footer-title {
            color: #F1F5F9;
            font-size: 16px;
            font-weight: 600;
            margin: 0 0 16px;
        }

        .footer-links,
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            text-decoration: none;
            font-size: 14px;
            transition: color .2s ease;
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
            font-size: 14px;
        }

        .footer-contact svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
            color: #64748B;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,.1);
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: #64748B;
        }

        .footer-bottom p {
            margin: 0;
        }

        @media (max-width: 991px) {
            .navbar {
                min-height: 60px;
            }

            .navbar-brand {
                font-size: 16px;
            }

            .main-nav {
                margin: 0;
                gap: 0;
                flex-direction: column;
                align-items: stretch;
                padding: 8px 0;
            }

            .nav-link-custom {
                padding: 10px 0;
                border-bottom: 1px solid var(--border);
            }

            .nav-link-custom.active::after {
                left: 0;
                right: auto;
                width: 32px;
                height: 3px;
                bottom: 8px;
            }

            .header-actions {
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
                padding: 12px 0;
            }

            .header-search {
                width: 100%;
            }

            .header-actions .btn-custom {
                width: 100%;
            }

            .article-head-card {
                padding: 28px 24px;
            }

            .article-head-card h1 {
                font-size: 28px;
            }

            .article-body {
                padding: 32px 24px;
            }

            .cta-card {
                padding: 28px 24px;
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-form {
                width: 100%;
            }

            .cta-form input {
                flex: 1;
                min-width: 150px;
            }

            .cta-form .btn-custom {
                width: auto;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }

            .article-header-section {
                padding: 20px 0 16px;
            }

            .article-head-card h1 {
                font-size: 24px;
            }

            .article-body {
                padding: 24px 20px;
                font-size: 15px;
            }

            .article-body h2 {
                font-size: 20px;
            }

            .article-body h3 {
                font-size: 18px;
            }

            .section-head h2 {
                font-size: 24px;
            }

            .cta-form {
                flex-direction: column;
            }

            .cta-form input,
            .cta-form .btn-custom {
                width: 100%;
                min-width: 0;
            }

            .footer-grid {
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .article-head-card {
                padding: 24px 20px;
            }

            .article-summary {
                font-size: 14px;
            }

            .related-card-body {
                padding: 20px;
            }

            .cta-card {
                padding: 24px 20px;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #4A8FE4;
            --primary-light: #E8F1FB;
            --primary-dark: #3578C5;
            --accent: #FF8C42;
            --accent-hover: #F57A27;
            --bg: #F7FAFC;
            --bg-alt: #EEF2F6;
            --card-bg: #FFFFFF;
            --text: #1F2937;
            --text-secondary: #6B7280;
            --border: #E5EAF0;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --radius-tag: 6px;
            --shadow: 0 1px 2px rgba(30, 60, 114, 0.05), 0 8px 24px rgba(30, 60, 114, 0.06);
            --shadow-hover: 0 12px 32px rgba(30, 60, 114, 0.10);
            --transition: all 0.3s ease;
            --font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        /* ===== 基础重置 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        button,
        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 通用板块 ===== */
        .section-block {
            padding: 80px 0;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }

        .section-head .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 14px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            margin-bottom: 14px;
        }

        /* ===== 按钮 ===== */
        .btn-custom {
            border-radius: var(--radius-sm);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-custom:hover {
            transform: translateY(-1px);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 6px 18px rgba(255, 140, 66, 0.25);
        }

        .btn-accent:hover,
        .btn-accent:focus {
            background: var(--accent-hover);
            color: #fff;
            box-shadow: 0 8px 24px rgba(255, 140, 66, 0.32);
        }

        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(74, 143, 228, 0.22);
        }

        .btn-primary-custom:hover,
        .btn-primary-custom:focus {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 8px 24px rgba(74, 143, 228, 0.30);
        }

        .btn-light-custom {
            background: #fff;
            color: var(--primary-dark);
            border: 1.5px solid var(--border);
            box-shadow: 0 2px 8px rgba(30, 60, 114, 0.04);
        }

        .btn-light-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: var(--shadow-hover);
        }

        .btn-sm-custom {
            padding: 9px 20px;
            font-size: 14px;
            border-radius: 8px;
        }

        /* ===== Header ===== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(30, 60, 114, 0.04);
            height: 72px;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .site-header .container-custom {
            height: 100%;
        }

        .site-header .navbar {
            padding: 0;
            height: 100%;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin-right: 32px;
        }

        .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            box-shadow: 0 4px 10px rgba(74, 143, 228, 0.25);
        }

        .brand-icon svg {
            width: 20px;
            height: 20px;
        }

        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-link-custom {
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            position: relative;
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-link-custom:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-link-custom.active {
            color: var(--primary-dark);
            font-weight: 600;
            background: var(--primary-light);
        }

        .nav-link-custom.active::after {
            content: '';
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: -1px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px 2px 0 0;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .header-search {
            width: 200px;
            height: 38px;
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 0 16px;
            font-size: 14px;
            background: var(--bg);
            color: var(--text);
            transition: var(--transition);
        }

        .header-search:focus {
            outline: none;
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(74, 143, 228, 0.12);
        }

        .header-search::placeholder {
            color: #9CA3AF;
        }

        .navbar-toggler {
            border: none;
            padding: 6px;
            border-radius: 8px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(74, 143, 228, 0.2);
        }

        .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='%231F2937' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== 页面小条幅 ===== */
        .page-banner {
            background: linear-gradient(135deg, rgba(74, 143, 228, 0.12) 0%, rgba(247, 250, 252, 0.9) 100%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            padding: 68px 0 64px;
            border-bottom: 1px solid var(--border);
        }

        .page-banner-inner {
            max-width: 720px;
        }

        .banner-tag {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .page-banner h1 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text);
            margin-bottom: 16px;
        }

        .page-banner p {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 620px;
            margin-bottom: 0;
        }

        /* ===== 概览区 ===== */
        .overview-section {
            background: #fff;
        }

        .overview-row {
            gap: 0;
        }

        .overview-img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
        }

        .overview-right {
            padding-left: 48px;
        }

        .overview-right h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: 18px;
        }

        .overview-right p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .overview-list {
            display: grid;
            gap: 12px;
        }

        .overview-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 12px 16px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .overview-list li:hover {
            border-color: var(--primary);
            background: var(--primary-light);
        }

        .overview-list li svg {
            width: 18px;
            height: 18px;
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 3px;
        }

        .overview-list li span {
            font-size: 15px;
            color: var(--text);
            font-weight: 500;
        }

        .overview-list li small {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 400;
            margin-top: 2px;
        }

        /* ===== 资讯类型 ===== */
        .info-type-section {
            background: var(--bg);
        }

        .info-type-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .info-type-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 30px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .info-type-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
            opacity: 0;
            transition: var(--transition);
        }

        .info-type-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            border-color: rgba(74, 143, 228, 0.35);
        }

        .info-type-card:hover::before {
            opacity: 1;
        }

        .info-type-card .type-icon {
            width: 52px;
            height: 52px;
            background: var(--primary-light);
            border-radius: var(--radius-md);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            color: var(--primary);
            transition: var(--transition);
        }

        .info-type-card:hover .type-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }

        .info-type-card .type-icon svg {
            width: 26px;
            height: 26px;
        }

        .info-type-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }

        .info-type-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 流程 ===== */
        .process-section {
            background: #fff;
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 10px;
        }

        .process-step {
            text-align: center;
            padding: 32px 20px 28px;
            background: var(--bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            position: relative;
            transition: var(--transition);
        }

        .process-step:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(74, 143, 228, 0.3);
        }

        .process-step .step-num {
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 16px;
            box-shadow: 0 4px 12px rgba(74, 143, 228, 0.25);
        }

        .process-step .step-num.accent {
            background: var(--accent);
            box-shadow: 0 4px 12px rgba(255, 140, 66, 0.25);
        }

        .process-step h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }

        .process-step p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg);
        }

        .accordion {
            max-width: 840px;
            margin: 0 auto;
            border: none;
        }

        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-md) !important;
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: 0 1px 3px rgba(30, 60, 114, 0.03);
            background: #fff;
        }

        .accordion-item:last-child {
            margin-bottom: 0;
        }

        .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            padding: 18px 22px;
            background: #fff;
            border: none;
            transition: var(--transition);
        }

        .accordion-button:not(.collapsed) {
            color: var(--primary-dark);
            background: var(--primary-light);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(74, 143, 228, 0.12);
            border: none;
        }

        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='none' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M4 6l4 4 4-4' stroke='%234A8FE4' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3e%3c/svg%3e");
            background-size: 16px;
            transition: var(--transition);
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='none' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M4 6l4 4 4-4' stroke='%233578C5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3e%3c/svg%3e");
        }

        .accordion-body {
            padding: 10px 22px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            background: #fff;
            border-top: 1px solid rgba(229, 234, 240, 0.6);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 72px 0;
            background: linear-gradient(135deg, var(--primary-light) 0%, #fff 100%);
        }

        .cta-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            box-shadow: var(--shadow);
            max-width: 760px;
            margin: 0 auto;
        }

        .cta-card h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }

        .cta-card p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 28px;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #1E293B;
            color: #C7D2E0;
            padding: 64px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-brand .brand-icon {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(4px);
        }

        .footer-brand span {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #94A3B8;
            margin-bottom: 0;
            max-width: 360px;
        }

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

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: #94A3B8;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: #94A3B8;
            margin-bottom: 12px;
        }

        .footer-contact li svg {
            width: 16px;
            height: 16px;
            color: var(--primary-light);
            flex-shrink: 0;
        }

        .footer-bottom {
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: #64748B;
        }

        .footer-bottom p {
            margin: 0;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .site-header {
                height: auto;
                padding: 12px 0;
            }

            .navbar-brand {
                margin-right: 0;
            }

            .main-nav {
                padding: 14px 0 6px;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
            }

            .nav-link-custom {
                padding: 10px 16px;
                border-radius: 8px;
            }

            .nav-link-custom.active::after {
                display: none;
            }

            .header-actions {
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
                padding: 12px 0 16px;
            }

            .header-search {
                width: 100%;
                height: 42px;
            }

            .btn-sm-custom {
                text-align: center;
            }

            .page-banner {
                padding: 52px 0 48px;
            }

            .page-banner h1 {
                font-size: 32px;
            }

            .overview-right {
                padding-left: 0;
                margin-top: 28px;
            }

            .overview-img {
                height: 320px;
            }

            .info-type-grid {
                grid-template-columns: 1fr;
            }

            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .cta-section {
                padding: 56px 0;
            }

            .cta-card {
                padding: 36px 24px;
            }
        }

        @media (max-width: 575.98px) {
            .section-block {
                padding: 56px 0;
            }

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

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

            .page-banner p {
                font-size: 15px;
            }

            .overview-img {
                height: 240px;
            }

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

            .footer-bottom {
                font-size: 12px;
            }

            .cta-actions {
                flex-direction: column;
                width: 100%;
            }

            .cta-actions .btn {
                width: 100%;
                justify-content: center;
            }

            .brand-text {
                font-size: 17px;
            }

            .brand-icon {
                width: 32px;
                height: 32px;
            }
        }