/* roulang page: index */
:root {
            --primary: #0F7B77;
            --primary-600: #0C635F;
            --primary-light: rgba(15, 123, 119, 0.12);
            --secondary: #D4A853;
            --bg-light: #F7F9FA;
            --bg-dark: #0B1E2E;
            --surface: #FFFFFF;
            --text-primary: #1C2B36;
            --text-secondary: #5C6B7A;
            --border: rgba(11, 30, 46, 0.08);
            --btn-grad: linear-gradient(135deg, #12A5A0 0%, #0F7B77 100%);
            --radius-card: 20px;
            --radius-large: 24px;
            --radius-button: 100px;
            --shadow-card: 0 10px 30px -12px rgba(11, 30, 46, 0.12);
            --shadow-hover: 0 16px 40px -12px rgba(11, 30, 46, 0.18);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background: var(--surface);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.25s ease;
        }

        a:hover {
            color: var(--primary-600);
        }

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

        .container {
            max-width: 1240px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: 90px 0;
        }

        .section-sm {
            padding: 60px 0;
        }

        .section-titled {
            margin-bottom: 56px;
            text-align: center;
        }

        .section-titled .eyebrow {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 100px;
            padding: 6px 18px;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .section-titled h2 {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 600;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .section-titled p {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            transition: box-shadow 0.3s ease, background 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 6px 30px rgba(11, 30, 46, 0.06);
            background: rgba(255, 255, 255, 0.97);
        }

        .navbar-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            padding: 0 40px;
            max-width: 1400px;
            margin: 0 auto;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--btn-grad);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.3rem;
            box-shadow: 0 6px 16px -4px rgba(15, 123, 119, 0.4);
        }

        .logo-text {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links .nav-link-item {
            position: relative;
            padding: 8px 16px;
            font-size: 0.95rem;
            color: #2B3A4A;
            border-radius: 100px;
            transition: background 0.25s ease, color 0.25s ease;
            white-space: nowrap;
        }

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

        .nav-links .nav-link-item.active {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-links .nav-link-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--primary);
        }

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

        .header-cta {
            padding: 10px 26px;
            border-radius: 100px;
            border: 1px solid var(--primary);
            color: var(--primary);
            font-size: 0.95rem;
            font-weight: 500;
            background: transparent;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .header-cta:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px -8px rgba(15, 123, 119, 0.5);
        }

        .header-icon-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: none;
            background: transparent;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s ease, color 0.2s ease;
        }

        .header-icon-btn:hover {
            background: var(--bg-light);
            color: var(--primary);
        }

        .navbar-toggler {
            border: none;
            background: transparent;
            width: 40px;
            height: 40px;
            display: none;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
        }

        .navbar-toggler span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        .navbar-toggler.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .navbar-toggler.open span:nth-child(2) {
            opacity: 0;
        }

        .navbar-toggler.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            position: fixed;
            top: 0;
            right: 0;
            width: 100%;
            height: 92vh;
            background: #fff;
            z-index: 999;
            padding: 90px 32px 32px;
            transform: translateY(-100%);
            transition: transform 0.35s ease;
            overflow-y: auto;
            border-bottom-left-radius: 24px;
            border-bottom-right-radius: 24px;
            box-shadow: 0 30px 60px rgba(11, 30, 46, 0.1);
        }

        .mobile-menu.open {
            transform: translateY(0);
        }

        .mobile-menu .mobile-nav-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mobile-menu .mobile-nav-links li {
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }

        .mobile-menu .mobile-nav-links a {
            display: block;
            padding: 16px 8px;
            font-size: 1.15rem;
            color: var(--text-primary);
            font-weight: 500;
        }

        .mobile-menu .mobile-nav-links a:hover {
            color: var(--primary);
        }

        /* Hero */
        .hero {
            position: relative;
            background-color: var(--bg-dark);
            background-image: linear-gradient(135deg, rgba(11, 30, 46, 0.92), rgba(11, 30, 46, 0.78)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 92vh;
            display: flex;
            align-items: center;
            overflow: hidden;
            padding-top: 76px;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(15, 123, 119, 0.35) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: 10%;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(212, 168, 83, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 1;
        }

        .hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
            padding: 60px 0;
        }

        .hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 100px;
            padding: 6px 18px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 20px;
        }

        .hero .hero-badge i {
            color: var(--secondary);
        }

        .hero h1 {
            font-size: clamp(2.2rem, 6vw, 4.4rem);
            font-weight: 600;
            line-height: 1.15;
            color: #fff;
            letter-spacing: -0.01em;
            margin-bottom: 20px;
        }

        .hero .hero-sub {
            font-size: clamp(1.1rem, 2vw, 1.4rem);
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 36px;
            max-width: 640px;
        }

        .hero .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }

        .hero .hero-actions .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 100px;
            background: var(--btn-grad);
            color: #fff;
            border: none;
            font-size: 1rem;
            font-weight: 500;
            transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
            box-shadow: 0 8px 24px -6px rgba(15, 123, 119, 0.5);
        }

        .hero .hero-actions .btn-primary-custom:hover {
            transform: translateY(-2px);
            filter: brightness(1.06);
            box-shadow: 0 14px 30px -8px rgba(15, 123, 119, 0.6);
            color: #fff;
        }

        .hero .hero-actions .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            border-radius: 100px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.6);
            color: rgba(255, 255, 255, 0.9);
            font-size: 1rem;
            font-weight: 500;
            transition: all 0.25s ease;
        }

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

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 20px;
        }

        .hero-stat {
            background: rgba(255, 255, 255, 0.06);
            border-radius: 16px;
            padding: 20px 24px;
            border: 1px solid rgba(255, 255, 255, 0.07);
        }

        .hero-stat .stat-num {
            font-size: 1.6rem;
            font-weight: 600;
            color: var(--secondary);
            line-height: 1.2;
        }

        .hero-stat .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        .hero .grid-decoration {
            position: absolute;
            top: 30%;
            right: 5%;
            width: 320px;
            height: 320px;
            border: 1px dashed rgba(15, 123, 119, 0.3);
            border-radius: 50%;
            animation: spin 60s linear infinite;
        }

        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

        /* News / CMS */
        .news-section {
            background: var(--surface);
            padding: 90px 0;
        }

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

        .news-card {
            background: var(--surface);
            border-radius: 18px;
            border: 1px solid rgba(0, 0, 0, 0.04);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
        }

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

        .news-card .card-thumb {
            position: relative;
            aspect-ratio: 16 / 10;
            background: var(--bg-light);
            overflow: hidden;
        }

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

        .news-card:hover .card-thumb img {
            transform: scale(1.02);
        }

        .news-card .card-thumb .thumb-fallback {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(15, 123, 119, 0.06), rgba(15, 123, 119, 0.02));
            color: var(--primary);
            font-size: 2.4rem;
        }

        .news-card .card-body {
            padding: 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text-primary);
            margin-bottom: 8px;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .news-card .card-body h3 a {
            color: inherit;
        }

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

        .news-card .card-body p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            margin-bottom: 16px;
            flex: 1;
        }

        .news-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(0, 0, 0, 0.05);
            padding-top: 14px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            position: relative;
        }

        .news-card .card-meta::before {
            content: '';
            position: absolute;
            top: -1px;
            left: 0;
            width: 48px;
            height: 3px;
            background: var(--primary);
            border-radius: 0 3px 3px 0;
        }

        .news-card .card-meta .meta-left {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .news-card .card-meta i {
            font-size: 0.8rem;
        }

        .news-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--primary);
            transition: gap 0.25s ease;
        }

        .news-card .read-more:hover {
            gap: 8px;
            color: var(--primary-600);
        }

        .news-empty {
            grid-column: 1 / -1;
            border: 1px dashed rgba(0, 0, 0, 0.12);
            border-radius: 16px;
            padding: 60px 30px;
            text-align: center;
            color: var(--text-secondary);
            background: var(--bg-light);
        }

        .news-empty .empty-icon {
            font-size: 2.8rem;
            color: rgba(0, 0, 0, 0.2);
            margin-bottom: 12px;
        }

        .news-empty p {
            font-size: 0.95rem;
            margin: 0;
        }

        /* Features */
        .features-section {
            background: var(--bg-light);
            padding: 90px 0;
        }

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

        .feature-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            padding: 32px;
            border: none;
            position: relative;
            overflow: hidden;
            box-shadow: 0 4px 16px rgba(11, 30, 46, 0.04);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--primary);
            transform: scaleX(0.3);
            transform-origin: left;
            transition: transform 0.3s ease;
        }

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

        .feature-card:hover::before {
            transform: scaleX(1);
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--primary);
            font-size: 1.35rem;
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .feature-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 16px;
        }

        .feature-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap 0.25s ease;
        }

        .feature-link:hover {
            gap: 8px;
            color: var(--primary-600);
        }

        /* Demo */
        .demo-section {
            padding: 90px 0;
            background: var(--surface);
        }

        .demo-panel {
            background: var(--bg-dark);
            border-radius: var(--radius-large);
            padding: 56px;
            position: relative;
            overflow: hidden;
            color: #fff;
        }

        .demo-panel::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 260px;
            height: 260px;
            background: rgba(15, 123, 119, 0.2);
            border-radius: 50%;
        }

        .demo-panel .demo-text {
            position: relative;
            z-index: 2;
            max-width: 480px;
        }

        .demo-panel h2 {
            font-size: clamp(1.8rem, 3vw, 2.3rem);
            font-weight: 600;
            margin-bottom: 16px;
            color: #fff;
        }

        .demo-panel p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1rem;
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .demo-mockup {
            position: relative;
            z-index: 3;
            background: #fff;
            border-radius: 24px;
            aspect-ratio: 16 / 10;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(0, 0, 0, 0.06);
            background-image: url('/assets/images/coverpic/cover-2.png');
            background-size: cover;
            background-position: center;
            box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.4);
        }

        .demo-mockup .mockup-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 123, 119, 0.08), rgba(255, 255, 255, 0.2));
            border-radius: 24px;
        }

        .demo-badge-float {
            position: absolute;
            top: 30px;
            right: -14px;
            background: #fff;
            border-radius: 14px;
            padding: 12px 20px;
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18);
            font-size: 0.9rem;
            color: var(--text-primary);
            z-index: 5;
            font-weight: 500;
            border-left: 3px solid var(--secondary);
        }

        .demo-badge-float small {
            display: block;
            font-size: 0.75rem;
            color: var(--text-secondary);
            font-weight: 400;
        }

        .demo-steps {
            margin-top: 48px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            z-index: 2;
        }

        .demo-step {
            text-align: center;
        }

        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--btn-grad);
            color: #fff;
            font-weight: 600;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            box-shadow: 0 8px 20px -6px rgba(15, 123, 119, 0.5);
        }

        .step-label {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.5;
        }

        /* Data */
        .data-section {
            background: var(--bg-dark);
            padding: 90px 0;
            position: relative;
            overflow: hidden;
        }

        .data-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 500px;
            height: 500px;
            background: rgba(15, 123, 119, 0.12);
            border-radius: 50%;
        }

        .data-wrap {
            position: relative;
            z-index: 2;
        }

        .data-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 48px;
            margin-bottom: 56px;
        }

        .data-stat {
            text-align: center;
        }

        .data-stat .num {
            font-size: clamp(2.2rem, 4vw, 3rem);
            font-weight: 600;
            color: var(--secondary);
            line-height: 1.2;
        }

        .data-stat .label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
        }

        .data-stat.highlight {
            background: rgba(15, 123, 119, 0.15);
            border: 1px solid rgba(15, 123, 119, 0.4);
            border-radius: 20px;
            padding: 28px 16px;
        }

        .data-quote {
            max-width: 680px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            padding-top: 40px;
        }

        .data-quote .quote-icon {
            font-size: 2.6rem;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .data-quote blockquote {
            font-size: 1.15rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.72);
            font-style: normal;
            border: none;
            padding: 0;
            margin-bottom: 16px;
        }

        .data-quote .quote-author {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* Pricing */
        .pricing-section {
            background: var(--bg-light);
            padding: 90px 0;
        }

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

        .pricing-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            padding: 40px 32px;
            border: 1px solid rgba(0, 0, 0, 0.04);
            box-shadow: 0 4px 16px rgba(11, 30, 46, 0.04);
            display: flex;
            flex-direction: column;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .pricing-card.featured {
            background: linear-gradient(180deg, #fff 0%, rgba(15, 123, 119, 0.04) 100%);
            border: 1px solid rgba(18, 165, 160, 0.5);
            box-shadow: 0 16px 40px -12px rgba(15, 123, 119, 0.18);
            transform: scale(1.02);
            position: relative;
        }

        .pricing-card.featured .featured-tag {
            position: absolute;
            top: 20px;
            right: 20px;
            background: var(--btn-grad);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 14px;
            border-radius: 100px;
        }

        .pricing-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .pricing-card .price {
            font-size: 2.4rem;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .pricing-card .price-period {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .pricing-card ul {
            list-style: none;
            padding: 0;
            margin: 0 0 28px;
            flex: 1;
        }

        .pricing-card ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 7px 0;
            font-size: 0.9rem;
            color: var(--text-primary);
        }

        .pricing-card ul li i {
            color: var(--primary);
            font-size: 0.75rem;
            margin-top: 6px;
        }

        .pricing-card .btn-pricing {
            display: inline-block;
            padding: 12px 28px;
            border-radius: 100px;
            border: 1px solid var(--primary);
            background: transparent;
            color: var(--primary);
            text-align: center;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all 0.25s ease;
        }

        .pricing-card .btn-pricing:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 10px 20px -8px rgba(15, 123, 119, 0.5);
        }

        .pricing-card.featured .btn-pricing {
            background: var(--btn-grad);
            color: #fff;
            border: none;
            box-shadow: 0 10px 24px -8px rgba(15, 123, 119, 0.5);
        }

        .pricing-card.featured .btn-pricing:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
        }

        /* FAQ */
        .faq-section {
            background: var(--surface);
            padding: 90px 0;
        }

        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--surface);
            transition: background 0.3s ease, border-color 0.3s ease;
        }

        .faq-item.active {
            background: rgba(15, 123, 119, 0.04);
            border-color: rgba(15, 123, 119, 0.2);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 18px 24px;
            cursor: pointer;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-primary);
            transition: color 0.2s ease;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .q-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            flex-shrink: 0;
            transition: background 0.3s ease, color 0.3s ease;
        }

        .faq-item.active .faq-question .q-icon {
            background: var(--primary);
            color: #fff;
        }

        .faq-question .faq-toggle {
            margin-left: auto;
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-toggle {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 20px 68px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #0F2D3D 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(15, 123, 119, 0.25) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-inner p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .cta-inner .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 15px 36px;
            border-radius: 100px;
            background: var(--btn-grad);
            color: #fff;
            border: none;
            font-size: 1.05rem;
            font-weight: 500;
            box-shadow: 0 12px 30px -6px rgba(15, 123, 119, 0.6);
            transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
        }

        .cta-inner .btn-cta:hover {
            transform: translateY(-2px);
            filter: brightness(1.08);
            box-shadow: 0 18px 40px -6px rgba(15, 123, 119, 0.7);
            color: #fff;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            padding: 60px 0 0;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.15rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand .footer-logo .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 1rem;
            border-radius: 10px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

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

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

        .footer-col ul a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

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

        .footer-contact p {
            font-size: 0.9rem;
            margin-bottom: 10px;
            color: rgba(255, 255, 255, 0.6);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact p i {
            color: var(--primary);
            width: 18px;
        }

        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.2);
        }

        /* Floating CTA mobile */
        .float-cta {
            position: fixed;
            bottom: 24px;
            right: 24px;
            z-index: 100;
            background: var(--btn-grad);
            color: #fff;
            border: none;
            padding: 14px 28px;
            border-radius: 100px;
            font-size: 0.95rem;
            font-weight: 500;
            box-shadow: 0 12px 30px -6px rgba(15, 123, 119, 0.6);
            cursor: pointer;
            opacity: 0;
            transform: translateY(20px);
            pointer-events: none;
            transition: opacity 0.3s ease, transform 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .float-cta.show {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }

        .float-cta:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
        }

        @media (max-width: 1199.98px) {
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

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

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

            .data-stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px 32px;
            }

            .demo-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 16px;
            }

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

        @media (max-width: 991.98px) {
            .section {
                padding: 60px 0;
            }

            .nav-links {
                display: none;
            }

            .navbar-toggler {
                display: flex;
            }

            .navbar-wrap {
                padding: 0 20px;
                height: 68px;
            }

            .site-header {
                padding: 0;
            }

            .header-cta {
                display: none;
            }

            .hero {
                min-height: auto;
                padding-top: 76px;
            }

            .hero-content {
                padding: 60px 0 40px;
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px;
            }

            .demo-panel {
                padding: 40px 28px;
            }

            .demo-badge-float {
                display: none;
            }
        }

        @media (max-width: 767.98px) {
            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
            }

            .hero-stat {
                padding: 14px 16px;
            }

            .hero-stat .stat-num {
                font-size: 1.3rem;
            }

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

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

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

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

            .pricing-card.featured {
                transform: none;
            }

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

            .data-stat.highlight {
                padding: 20px 12px;
            }

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

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

            .hero-actions .btn-primary-custom,
            .hero-actions .btn-outline-light {
                width: 100%;
                justify-content: center;
            }

            .section-titled {
                margin-bottom: 36px;
            }
        }

        @media (max-width: 575.98px) {
            .navbar-wrap {
                padding: 0 16px;
            }

            .logo-text {
                font-size: 1rem;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1.1rem;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .hero-sub {
                font-size: 1rem;
            }

            .demo-panel {
                padding: 32px 20px;
            }

            .demo-step {
                text-align: center;
            }

            .step-num {
                width: 40px;
                height: 40px;
                font-size: 0.95rem;
            }

            .faq-answer-inner {
                padding-left: 24px;
            }

            .float-cta {
                right: 16px;
                bottom: 16px;
                padding: 12px 22px;
                font-size: 0.9rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0F7B77;
            --primary-600: #0C635F;
            --primary-light: rgba(15, 123, 119, 0.12);
            --secondary: #D4A853;
            --secondary-dark: #B8860B;
            --bg-light: #F7F9FA;
            --bg-dark: #0B1E2E;
            --bg-dark-2: #0E2132;
            --surface: #FFFFFF;
            --text-primary: #1C2B36;
            --text-secondary: #5C6B7A;
            --border: rgba(11, 30, 46, 0.08);
            --btn-grad: linear-gradient(135deg, #12A5A0 0%, #0F7B77 100%);
            --radius-card: 20px;
            --radius-large: 24px;
            --radius-button: 100px;
            --shadow-sm: 0 10px 30px rgba(11, 30, 46, 0.06);
            --shadow-hover: 0 16px 40px rgba(11, 30, 46, 0.10);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background: var(--surface);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }

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

        .container {
            max-width: 1200px;
        }

        .section-block {
            padding: 90px 0;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .section-label::before {
            content: "";
            width: 22px;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
        }

        .section-title {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 600;
            line-height: 1.3;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
        }

        .text-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            border-bottom: 1px solid var(--border);
            transition: box-shadow 0.3s ease, background 0.3s ease;
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom-color: rgba(11, 30, 46, 0.04);
        }

        .navbar-wrap {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 40px;
            height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .logo-wrap {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--btn-grad);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.05rem;
            box-shadow: 0 8px 20px -6px rgba(15, 123, 119, 0.4);
        }

        .logo-text {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.01em;
            line-height: 1.2;
            white-space: nowrap;
        }

        .logo-text span {
            display: block;
            font-size: 0.75rem;
            font-weight: 400;
            color: var(--text-secondary);
            letter-spacing: 0.16em;
            margin-top: 1px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 30px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links .nav-link-item {
            font-size: 0.95rem;
            font-weight: 500;
            color: #2B3A4A;
            padding: 6px 2px;
            position: relative;
            transition: color 0.25s ease;
        }

        .nav-links .nav-link-item::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }

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

        .nav-links .nav-link-item:hover::after {
            transform: scaleX(1);
        }

        .nav-links .nav-link-item.active {
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 8px;
            padding: 6px 14px;
        }

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

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

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 26px;
            border-radius: 100px;
            border: 1px solid var(--primary);
            color: var(--primary);
            font-size: 0.95rem;
            font-weight: 500;
            background: transparent;
            transition: all 0.25s ease;
        }

        .header-cta:hover {
            background: var(--btn-grad);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 10px 20px -8px rgba(15, 123, 119, 0.5);
        }

        .navbar-toggler {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 44px;
            height: 44px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 12px;
            cursor: pointer;
            gap: 5px;
            padding: 0;
        }

        .navbar-toggler span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        .navbar-toggler.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .navbar-toggler.open span:nth-child(2) {
            opacity: 0;
        }

        .navbar-toggler.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-nav-panel {
            display: none;
        }

        /* ===== Category Hero ===== */
        .category-hero {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(11, 30, 46, 0.94), rgba(11, 30, 46, 0.82)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 160px 0 100px;
            color: #fff;
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -80px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(15, 123, 119, 0.35), transparent 68%);
            pointer-events: none;
        }

        .category-hero::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(transparent, rgba(255, 255, 255, 0.96));
            pointer-events: none;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 30px;
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.7);
            transition: color 0.25s;
        }

        .breadcrumb-nav a:hover {
            color: var(--secondary);
        }

        .breadcrumb-nav .sep {
            color: rgba(255, 255, 255, 0.35);
        }

        .breadcrumb-nav .current {
            color: var(--secondary);
        }

        .category-hero h1 {
            font-size: clamp(2rem, 4.5vw, 3.4rem);
            font-weight: 600;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.01em;
        }

        .category-hero .hero-lead {
            font-size: clamp(1.05rem, 1.8vw, 1.3rem);
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.8);
            max-width: 720px;
            margin-bottom: 36px;
        }

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

        .btn-grad {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: 100px;
            background: var(--btn-grad);
            color: #fff;
            font-size: 1rem;
            font-weight: 500;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-grad:hover {
            color: #fff;
            box-shadow: 0 14px 30px -10px rgba(15, 123, 119, 0.55);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: 100px;
            border: 1px solid rgba(255, 255, 255, 0.55);
            color: #fff;
            font-size: 1rem;
            font-weight: 500;
            background: transparent;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
        }

        .btn-outline-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 100px;
            border: 1px solid var(--primary);
            color: var(--primary);
            font-size: 0.95rem;
            font-weight: 500;
            background: transparent;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .btn-outline-primary:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-grad:focus-visible,
        .btn-outline-light:focus-visible,
        .btn-outline-primary:focus-visible,
        .header-cta:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 4px;
        }

        .hero-stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 56px;
        }

        .hero-stat-card {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 16px;
            padding: 20px 22px;
            backdrop-filter: blur(8px);
        }

        .hero-stat-num {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
        }

        /* ===== Long Article Layout ===== */
        .article-category-section {
            background: #fff;
        }

        .article-category-section:nth-of-type(even) {
            background: var(--bg-light);
        }

        .article-body {
            max-width: 860px;
            margin: 0 auto;
        }

        .article-body .lead-paragraph {
            font-size: 1.1rem;
            line-height: 1.85;
            color: var(--text-secondary);
            margin-bottom: 32px;
        }

        .article-body h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 600;
            line-height: 1.3;
            margin: 56px 0 20px;
            padding-left: 18px;
            border-left: 4px solid var(--primary);
            color: var(--text-primary);
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            line-height: 1.45;
            margin: 32px 0 14px;
            color: var(--text-primary);
        }

        .article-body p {
            font-size: 1rem;
            line-height: 1.85;
            color: #3d4b58;
            margin-bottom: 20px;
        }

        .article-body ul {
            margin: 0 0 20px;
            padding-left: 0;
            list-style: none;
        }

        .article-body ul li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 10px;
            line-height: 1.75;
            color: #3d4b58;
        }

        .article-body ul li::before {
            content: "";
            position: absolute;
            left: 2px;
            top: 12px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--btn-grad);
        }

        .info-note {
            background: var(--bg-light);
            border-left: 4px solid var(--secondary);
            border-radius: 0 16px 16px 0;
            padding: 24px 28px;
            margin: 30px 0;
            color: var(--text-primary);
        }

        .info-note strong {
            color: var(--primary);
            font-weight: 600;
        }

        /* Access Mode Cards */
        .access-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 36px;
        }

        .access-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 30px 28px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .access-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--btn-grad);
        }

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

        .access-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.4rem;
            margin-bottom: 20px;
        }

        .access-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .access-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .access-card .tag-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 100px;
            font-size: 0.78rem;
            padding: 3px 14px;
            margin-top: 16px;
            font-weight: 500;
        }

        /* Checklist */
        .checklist-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 36px;
        }

        .checklist-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 24px 26px;
            display: flex;
            gap: 16px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .checklist-item:hover {
            border-color: rgba(15, 123, 119, 0.3);
            box-shadow: var(--shadow-sm);
        }

        .check-icon {
            width: 36px;
            height: 36px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--btn-grad);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
        }

        .checklist-item h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .checklist-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* Steps */
        .steps-wrapper {
            position: relative;
            margin-top: 48px;
            padding: 0 10px;
        }

        .steps-wrapper::before {
            content: "";
            position: absolute;
            top: 24px;
            left: 40px;
            right: 40px;
            height: 1px;
            border-top: 2px dashed rgba(15, 123, 119, 0.25);
            z-index: 0;
        }

        .steps-row {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
            position: relative;
            z-index: 1;
        }

        .step-item {
            text-align: center;
            background: var(--surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 28px 18px 24px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

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

        .step-circle {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: var(--btn-grad);
            color: #fff;
            font-size: 1.1rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 18px -6px rgba(15, 123, 119, 0.45);
        }

        .step-item h4 {
            font-size: 0.98rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* Trouble Cards */
        .trouble-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 40px;
        }

        .trouble-card {
            background: var(--bg-dark);
            border-radius: var(--radius-card);
            padding: 30px 26px;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: border-color 0.3s ease, transform 0.3s ease;
        }

        .trouble-card:nth-child(2) {
            border: 1px solid rgba(212, 168, 83, 0.45);
            background: linear-gradient(145deg, rgba(14, 33, 50, 0.98), rgba(11, 30, 46, 0.98));
        }

        .trouble-card:hover {
            border-color: rgba(15, 123, 119, 0.5);
            transform: translateY(-3px);
        }

        .trouble-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.08);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            font-size: 1.1rem;
            margin-bottom: 18px;
        }

        .trouble-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .trouble-card p {
            font-size: 0.92rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 0;
        }

        /* Category Entry Cards */
        .category-entry-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin-top: 44px;
        }

        .category-entry-card {
            display: flex;
            align-items: center;
            gap: 24px;
            background: var(--bg-dark);
            border-radius: var(--radius-large);
            padding: 36px 32px;
            color: #fff;
            position: relative;
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .category-entry-card::before {
            content: "";
            position: absolute;
            right: -40px;
            top: -40px;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: rgba(15, 123, 119, 0.25);
        }

        .category-entry-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 44px -16px rgba(11, 30, 46, 0.45);
        }

        .category-entry-icon {
            width: 64px;
            height: 64px;
            flex-shrink: 0;
            border-radius: 18px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            font-size: 1.6rem;
        }

        .category-entry-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .category-entry-card p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .entry-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--secondary);
            margin-top: 12px;
            transition: gap 0.25s ease;
        }

        .category-entry-card:hover .entry-arrow {
            gap: 10px;
        }

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

        .faq-accordion {
            max-width: 860px;
            margin: 48px auto 0;
        }

        .faq-accordion .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: none;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: rgba(15, 123, 119, 0.3);
            box-shadow: 0 6px 20px -10px rgba(15, 123, 119, 0.2);
        }

        .faq-accordion .accordion-button {
            background: transparent;
            border: none;
            box-shadow: none;
            color: var(--text-primary);
            font-size: 1.05rem;
            font-weight: 500;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 16px;
            width: 100%;
            text-align: left;
            transition: color 0.3s ease, background 0.3s ease;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: var(--primary-light);
        }

        .faq-accordion .accordion-button::after {
            display: none;
        }

        .faq-icon {
            width: 32px;
            height: 32px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            font-weight: 700;
        }

        .faq-accordion .accordion-button:not(.collapsed) .faq-icon {
            background: var(--btn-grad);
            color: #fff;
        }

        .faq-arrow {
            margin-left: auto;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: transform 0.3s ease, color 0.3s ease;
            flex-shrink: 0;
        }

        .faq-accordion .accordion-button:not(.collapsed) .faq-arrow {
            color: var(--primary);
            transform: rotate(180deg);
        }

        .faq-accordion .accordion-body {
            padding: 4px 24px 24px 72px;
            color: var(--text-secondary);
            font-size: 0.96rem;
            line-height: 1.8;
            border-top: none;
        }

        /* CTA */
        .cta-panel {
            background: linear-gradient(135deg, rgba(11, 30, 46, 0.96), rgba(14, 33, 50, 0.92)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            border-radius: var(--radius-large);
            padding: 72px 48px;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-panel::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(15, 123, 119, 0.3);
        }

        .cta-panel h2 {
            font-size: clamp(1.7rem, 3vw, 2.4rem);
            font-weight: 600;
            margin-bottom: 16px;
            color: #fff;
        }

        .cta-panel p {
            color: rgba(255, 255, 255, 0.7);
            max-width: 640px;
            margin: 0 auto 32px;
            font-size: 1.05rem;
            line-height: 1.75;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 72px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 0.9fr 0.9fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-brand .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            font-size: 0.95rem;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 0;
            max-width: 280px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 18px;
        }

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

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            transition: color 0.25s ease, padding-left 0.25s ease;
        }

        .footer-col ul li a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }

        .footer-contact p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact p i {
            color: var(--secondary);
        }

        .footer-bottom {
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom .sep {
            opacity: 0.5;
        }

        /* Floating Mobile CTA */
        .mobile-float-cta {
            display: none;
            position: fixed;
            bottom: 16px;
            right: 16px;
            z-index: 1200;
            background: var(--btn-grad);
            color: #fff;
            border: none;
            border-radius: 100px;
            padding: 0 24px;
            height: 48px;
            font-size: 1rem;
            font-weight: 500;
            box-shadow: 0 12px 28px -8px rgba(15, 123, 119, 0.55);
            transition: opacity 0.4s ease, transform 0.4s ease;
            opacity: 0;
            pointer-events: none;
            transform: translateY(16px);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .mobile-float-cta.show {
            opacity: 1;
            pointer-events: auto;
            transform: translateY(0);
        }

        /* Responsive */
        @media (max-width: 1199.98px) {
            .navbar-wrap {
                padding: 0 24px;
            }
            .nav-links {
                gap: 18px;
            }
        }

        @media (max-width: 991.98px) {
            .navbar-wrap {
                height: 68px;
            }
            .nav-links {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 24px 36px;
                gap: 6px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-130%);
                transition: transform 0.35s ease;
                z-index: 999;
                height: auto;
                max-height: calc(92vh - 68px);
                overflow-y: auto;
                box-shadow: 0 20px 40px rgba(11, 30, 46, 0.08);
            }
            .nav-links.open {
                transform: translateY(0);
            }
            .nav-links .nav-link-item {
                font-size: 1.15rem;
                padding: 14px 8px;
                width: 100%;
                border-bottom: 1px solid rgba(11, 30, 46, 0.05);
            }
            .nav-links .nav-link-item.active {
                background: var(--primary-light);
                color: var(--primary);
                border-radius: 8px;
            }
            .navbar-toggler {
                display: flex;
            }
            .header-cta {
                padding: 8px 18px;
                font-size: 0.88rem;
            }
            .hero-stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .access-cards-grid {
                grid-template-columns: 1fr;
            }
            .checklist-wrap {
                grid-template-columns: 1fr;
            }
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-wrapper::before {
                display: none;
            }
            .trouble-grid {
                grid-template-columns: 1fr;
            }
            .category-entry-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 767.98px) {
            .section-block {
                padding: 60px 0;
            }
            .navbar-wrap {
                padding: 0 16px;
                gap: 12px;
            }
            .logo-text {
                font-size: 1.05rem;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                border-radius: 10px;
                font-size: 0.9rem;
            }
            .category-hero {
                min-height: auto;
                padding: 130px 0 72px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-grad,
            .btn-outline-light {
                justify-content: center;
            }
            .hero-stats-row {
                gap: 12px;
            }
            .hero-stat-card {
                padding: 16px;
            }
            .hero-stat-num {
                font-size: 1.3rem;
            }
            .article-body h2 {
                font-size: 1.4rem;
                margin-top: 40px;
            }
            .steps-row {
                grid-template-columns: 1fr;
            }
            .step-item {
                display: flex;
                text-align: left;
                align-items: center;
                gap: 16px;
                padding: 20px;
            }
            .step-circle {
                margin: 0;
                flex-shrink: 0;
            }
            .faq-accordion .accordion-body {
                padding: 4px 20px 20px 60px;
            }
            .category-entry-card {
                flex-direction: column;
                text-align: center;
                padding: 28px 20px;
            }
            .category-entry-icon {
                width: 52px;
                height: 52px;
                border-radius: 14px;
            }
            .cta-panel {
                padding: 48px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 6px;
            }
            .mobile-float-cta {
                display: inline-flex;
            }
        }

        @media (max-width: 520px) {
            .navbar-wrap {
                height: 62px;
            }
            .nav-links {
                top: 62px;
            }
            .logo-text {
                font-size: 0.95rem;
                max-width: 180px;
                white-space: normal;
                line-height: 1.3;
            }
            .logo-text span {
                font-size: 0.68rem;
            }
            .hero-stat-num {
                font-size: 1.15rem;
            }
            .hero-stat-label {
                font-size: 0.75rem;
            }
            .hero-stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .access-card,
            .checklist-item {
                padding: 22px 18px;
            }
        }

/* roulang page: article */
:root {
  --primary: #0F7B77;
  --primary-600: #0C635F;
  --primary-light: rgba(15,123,119,0.12);
  --secondary: #D4A853;
  --bg-light: #F7F9FA;
  --bg-dark: #0B1E2E;
  --surface: #FFFFFF;
  --text-primary: #1C2B36;
  --text-secondary: #5C6B7A;
  --border: rgba(11,30,46,0.08);
  --btn-grad: linear-gradient(135deg, #12A5A0 0%, #0F7B77 100%);
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --radius-card: 20px;
  --radius-large: 24px;
  --radius-button: 100px;
  --shadow-card: 0 10px 30px rgba(11,30,46,0.06);
  --shadow-card-hover: 0 16px 40px rgba(11,30,46,0.10);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--surface);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a {
  text-decoration: none;
  color: inherit;
  transition: all 0.25s ease;
}
img {
  max-width: 100%;
  display: block;
}
button {
  font-family: inherit;
  cursor: pointer;
}
ul {
  list-style: none;
}
.container {
  max-width: 1280px;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.08);
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(11,30,46,0.08);
}
.navbar-wrap {
  max-width: 1280px;
  margin: 0 auto;
  height: 76px;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.logo-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--btn-grad);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
  box-shadow: 0 6px 14px rgba(15,123,119,0.3);
}
.logo-text {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  line-height: 1.2;
}
.logo-text span {
  display: block;
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  margin: 0;
  padding: 0;
}
.nav-link-item {
  position: relative;
  font-size: 0.95rem;
  font-weight: 500;
  color: #2B3A4A;
  padding: 8px 2px;
}
.nav-link-item:hover {
  color: var(--primary);
}
.nav-link-item.active {
  color: var(--primary);
}
.nav-link-item.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.header-cta {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  border: 1px solid var(--primary);
  border-radius: var(--radius-button);
  color: var(--primary);
  font-size: 0.95rem;
  font-weight: 500;
}
.header-cta:hover {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(15,123,119,0.3);
}
.navbar-toggler {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}
.navbar-toggler span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.navbar-toggler.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.navbar-toggler.open span:nth-child(2) {
  opacity: 0;
}
.navbar-toggler.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  top: 76px;
  left: 0;
  width: 100%;
  height: calc(100vh - 76px);
  background: #fff;
  z-index: 999;
  padding: 32px 24px;
  display: none;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  border-top: 1px solid var(--border);
}
.mobile-nav.show {
  display: flex;
}
.mobile-nav a {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text-primary);
  padding: 16px 8px;
  border-radius: 12px;
  border-bottom: 1px solid rgba(0,0,0,0.04);
}
.mobile-nav a:hover,
.mobile-nav a.active {
  color: var(--primary);
  background: var(--primary-light);
}

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  padding: 150px 0 80px;
  background: linear-gradient(135deg, rgba(11,30,46,0.95) 0%, rgba(11,30,46,0.80) 100%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color: #fff;
}
.article-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, rgba(212,168,83,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.article-breadcrumb a {
  color: rgba(255,255,255,0.9);
}
.article-breadcrumb a:hover {
  color: var(--secondary);
}
.crumb-sep {
  opacity: 0.5;
}
.article-hero h1 {
  font-size: clamp(1.8rem, 3.2vw, 2.8rem);
  font-weight: 600;
  line-height: 1.3;
  color: #fff;
  max-width: 760px;
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}
.hero-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.75);
}
.meta-item i {
  font-size: 1rem;
  color: var(--secondary);
}

/* ===== Article Main Section ===== */
.article-main-section {
  padding: 70px 0 80px;
  background: var(--bg-light);
}
.article-card {
  background: var(--surface);
  border-radius: var(--radius-large);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.article-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-light);
}
.article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.article-cover img:hover {
  transform: scale(1.02);
}
.article-content {
  padding: 40px 42px;
  font-size: 17px;
  line-height: 1.9;
  color: var(--text-primary);
}
.article-content p {
  margin-bottom: 26px;
}
.article-content h2 {
  font-size: 1.75rem;
  font-weight: 600;
  line-height: 1.4;
  margin: 42px 0 18px;
  padding-left: 16px;
  border-left: 4px solid var(--primary);
  color: var(--text-primary);
}
.article-content h3 {
  font-size: 1.4rem;
  font-weight: 600;
  line-height: 1.45;
  margin: 32px 0 14px;
  color: var(--text-primary);
}
.article-content a {
  color: var(--primary);
  border-bottom: 1px solid rgba(15,123,119,0.3);
}
.article-content a:hover {
  border-bottom-color: var(--primary);
}
.article-content ul,
.article-content ol {
  margin: 0 0 26px;
  padding-left: 24px;
}
.article-content ul {
  list-style: none;
}
.article-content ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
}
.article-content ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}
.article-content ol {
  list-style: decimal;
}
.article-content blockquote {
  margin: 32px 0;
  padding: 20px 28px;
  background: var(--bg-light);
  border-left: 4px solid var(--primary);
  border-radius: 0 12px 12px 0;
  color: var(--text-secondary);
  font-style: normal;
}
.article-content blockquote p {
  margin-bottom: 0;
}
.article-content img {
  border-radius: 16px;
  margin: 28px 0;
}
.article-content figure {
  margin: 28px 0;
}
.article-content figcaption {
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 10px;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 30px 0;
  font-size: 0.95rem;
}
.article-content table th,
.article-content table td {
  border: 1px solid var(--border);
  padding: 12px 16px;
  text-align: left;
}
.article-content table th {
  background: var(--bg-light);
  font-weight: 600;
}

/* Tags */
.article-tags {
  padding: 0 42px 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag-chip {
  display: inline-block;
  padding: 6px 16px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* ===== Sidebar ===== */
.article-sidebar {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.sidebar-card {
  background: var(--surface);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  padding: 28px;
}
.sidebar-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 12px;
}
.sidebar-card h3::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 36px;
  height: 3px;
  border-radius: 2px;
  background: var(--btn-grad);
}
.sidebar-card ul {
  margin: 0;
  padding: 0;
}
.sidebar-card ul li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  font-size: 0.92rem;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(11,30,46,0.04);
}
.sidebar-card ul li i {
  color: var(--primary);
  font-size: 1rem;
}
.sidebar-links li a {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-weight: 500;
}
.sidebar-links li a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.sidebar-card.cta-card {
  background: var(--bg-dark);
  color: #fff;
  border: none;
}
.sidebar-card.cta-card h3 {
  color: #fff;
}
.sidebar-card.cta-card p {
  color: rgba(255,255,255,0.75);
  font-size: 0.92rem;
  margin-bottom: 20px;
}
.btn-primary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  background: var(--btn-grad);
  color: #fff;
  border: none;
  border-radius: var(--radius-button);
  font-size: 1rem;
  font-weight: 500;
  transition: all 0.25s ease;
}
.btn-primary-cta:hover {
  filter: brightness(1.08);
  box-shadow: 0 12px 20px -10px rgba(15,123,119,0.45);
  color: #fff;
}
.btn-outline-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 26px;
  border: 1px solid var(--primary);
  border-radius: var(--radius-button);
  color: var(--primary);
  background: transparent;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all 0.25s ease;
}
.btn-outline-cta:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}
.btn-light-cta {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  background: #fff;
  color: var(--primary);
  border-radius: var(--radius-button);
  font-weight: 500;
  border: none;
}
.btn-light-cta:hover {
  background: var(--primary);
  color: #fff;
}
.w-100 {
  width: 100%;
}

/* ===== Related Posts ===== */
.related-posts {
  margin-top: 48px;
}
.related-posts h2 {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 12px;
}
.related-posts h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  border-radius: 2px;
  background: var(--btn-grad);
}
.related-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.related-card-img {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-light);
}
.related-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.related-card:hover .related-card-img img {
  transform: scale(1.02);
}
.related-card-body {
  padding: 22px 24px 24px;
}
.related-card-body h3 {
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.45;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--text-primary);
}
.related-card-body p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}
.read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 0.92rem;
  font-weight: 500;
}
.read-more i {
  transition: transform 0.25s ease;
}
.read-more:hover {
  color: var(--primary-600);
}
.read-more:hover i {
  transform: translateX(4px);
}
.related-footer {
  text-align: center;
  margin-top: 36px;
}

/* ===== Not Found ===== */
.not-found-page {
  padding-top: 76px;
  min-height: calc(100vh - 76px);
  background: var(--bg-light);
}
.not-found-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 76px);
  padding: 80px 20px;
}
.nf-card {
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius-large);
  padding: 56px 48px;
  text-align: center;
  max-width: 520px;
  width: 100%;
  box-shadow: var(--shadow-card);
}
.nf-card i {
  font-size: 3.4rem;
  color: var(--primary);
  opacity: 0.4;
  display: block;
  margin-bottom: 18px;
}
.nf-card h2 {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.nf-card p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.75);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 14px;
}
.footer-logo .logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  font-size: 0.95rem;
}
.footer-brand p {
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.6);
}
.footer-col h4 {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
}
.footer-col ul {
  margin: 0;
  padding: 0;
}
.footer-col ul li {
  margin-bottom: 12px;
}
.footer-col ul li a {
  color: rgba(255,255,255,0.65);
  font-size: 0.92rem;
}
.footer-col ul li a:hover {
  color: var(--secondary);
}
.footer-contact p {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: 12px;
}
.footer-contact p i {
  color: var(--secondary);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.5);
}
.footer-bottom .sep {
  opacity: 0.4;
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
  .navbar-wrap {
    padding: 0 20px;
  }
  .nav-links {
    display: none;
  }
  .header-cta {
    display: none;
  }
  .navbar-toggler {
    display: flex;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .article-hero {
    padding: 120px 0 60px;
  }
  .article-content {
    padding: 30px 26px;
  }
  .article-tags {
    padding: 0 26px 28px;
  }
  .article-sidebar {
    position: static;
    margin-top: 32px;
  }
}

@media (max-width: 768px) {
  .article-main-section {
    padding: 48px 0 64px;
  }
  .article-hero {
    padding: 110px 0 50px;
  }
  .article-hero h1 {
    font-size: 1.6rem;
  }
  .hero-meta {
    gap: 14px;
  }
  .article-content {
    font-size: 16px;
    line-height: 1.85;
    padding: 24px 20px;
  }
  .article-content h2 {
    font-size: 1.4rem;
  }
  .article-content h3 {
    font-size: 1.2rem;
  }
  .article-tags {
    padding: 0 20px 24px;
  }
  .related-posts h2 {
    font-size: 1.4rem;
  }
  .nf-card {
    padding: 40px 24px;
  }
}

@media (max-width: 576px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 4px;
    text-align: center;
  }
  .article-hero {
    padding: 100px 0 40px;
  }
  .article-hero h1 {
    font-size: 1.5rem;
  }
  .article-breadcrumb {
    font-size: 0.82rem;
  }
}

/* roulang page: category2 */
:root {
            --primary: #0F7B77;
            --primary-600: #0C635F;
            --primary-light: rgba(15, 123, 119, 0.12);
            --secondary: #D4A853;
            --bg-light: #F7F9FA;
            --bg-dark: #0B1E2E;
            --surface: #FFFFFF;
            --text-primary: #1C2B36;
            --text-secondary: #5C6B7A;
            --border: rgba(11, 30, 46, 0.08);
            --btn-grad: linear-gradient(135deg, #12A5A0 0%, #0F7B77 100%);
            --radius-card: 20px;
            --radius-large: 24px;
            --radius-button: 100px;
            --shadow-card: 0 10px 30px -12px rgba(11, 30, 46, 0.12);
            --shadow-hover: 0 16px 40px -12px rgba(11, 30, 46, 0.18);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background: #fff;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.25s ease;
        }

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

        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }

        .container {
            max-width: 1240px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===================== 导航 ===================== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 76px;
            background: rgba(255, 255, 255, 0.92);
            border-bottom: 1px solid rgba(0, 0, 0, 0.08);
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            background: rgba(255, 255, 255, 0.96);
            box-shadow: 0 4px 30px rgba(11, 30, 46, 0.08);
        }

        .navbar-wrap {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 40px;
            height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--btn-grad);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 19px;
            box-shadow: 0 6px 16px rgba(15, 123, 119, 0.25);
        }

        .logo-text {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            line-height: 1.2;
        }

        .logo-text span {
            color: var(--primary);
            font-weight: 500;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links .nav-link-item {
            padding: 8px 16px;
            font-size: 0.95rem;
            color: #2B3A4A;
            border-radius: 100px;
            position: relative;
            transition: all 0.25s ease;
            font-weight: 400;
        }

        .nav-links .nav-link-item:hover {
            color: var(--primary);
            background: rgba(15, 123, 119, 0.06);
        }

        .nav-links .nav-link-item.active {
            background: rgba(15, 123, 119, 0.1);
            color: var(--primary);
            font-weight: 500;
        }

        .nav-links .nav-link-item.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--primary);
        }

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

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border: 1px solid var(--primary);
            border-radius: 100px;
            color: var(--primary);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all 0.25s ease;
        }

        .header-cta:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 20px rgba(15, 123, 119, 0.3);
            transform: translateY(-1px);
        }

        .navbar-toggler {
            display: none;
            flex-direction: column;
            gap: 6px;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: var(--bg-light);
            transition: all 0.3s ease;
        }

        .navbar-toggler span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .navbar-toggler.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

        .navbar-toggler.active span:nth-child(2) {
            opacity: 0;
        }

        .navbar-toggler.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        @media (max-width: 992px) {
            .navbar-wrap {
                padding: 0 20px;
            }

            .nav-links {
                position: fixed;
                top: 76px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 24px 32px 40px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(11, 30, 46, 0.08);
                transform: translateY(-120%);
                opacity: 0;
                visibility: hidden;
                transition: all 0.35s ease;
                height: auto;
                max-height: 92vh;
                overflow-y: auto;
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

            .nav-links .nav-link-item {
                font-size: 1.1rem;
                padding: 14px 20px;
                border-radius: 14px;
                color: var(--text-primary);
            }

            .nav-links .nav-link-item.active {
                background: rgba(15, 123, 119, 0.1);
                color: var(--primary);
            }

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

            .navbar-toggler {
                display: flex;
            }

            .header-cta {
                padding: 9px 18px;
                font-size: 0.88rem;
            }
        }

        @media (max-width: 576px) {
            .navbar-wrap {
                padding: 0 16px;
            }

            .logo-text {
                font-size: 1.02rem;
            }
        }

        /* ===================== Hero ===================== */
        .page-hero {
            position: relative;
            padding: 160px 0 90px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 30, 46, 0.94) 0%, rgba(11, 30, 46, 0.72) 50%, rgba(15, 123, 119, 0.28) 100%);
            z-index: 1;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: 100px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
            backdrop-filter: none;
            letter-spacing: 0.02em;
        }

        .hero-badge i {
            color: var(--secondary);
        }

        .page-hero h1 {
            font-size: clamp(2.2rem, 4.5vw, 3.6rem);
            font-weight: 600;
            line-height: 1.15;
            margin-bottom: 18px;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .page-hero .hero-sub {
            font-size: clamp(1.05rem, 1.8vw, 1.25rem);
            color: rgba(255, 255, 255, 0.78);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 36px;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-gradient {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 100px;
            background: var(--btn-grad);
            color: #fff;
            font-size: 1rem;
            font-weight: 500;
            border: none;
            transition: all 0.25s ease;
            box-shadow: 0 10px 25px rgba(15, 123, 119, 0.3);
        }

        .btn-gradient:hover {
            filter: brightness(1.06);
            transform: translateY(-2px);
            box-shadow: 0 14px 30px rgba(15, 123, 119, 0.4);
            color: #fff;
        }

        .btn-outline-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 100px;
            border: 1px solid rgba(255, 255, 255, 0.6);
            color: rgba(255, 255, 255, 0.9);
            font-size: 1rem;
            font-weight: 500;
            background: transparent;
            transition: all 0.25s ease;
        }

        .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 64px;
        }

        .hero-stat-card {
            background: rgba(255, 255, 255, 0.06);
            border-radius: 16px;
            padding: 24px;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .hero-stat-card .num {
            font-size: clamp(1.6rem, 2.4vw, 2.2rem);
            font-weight: 600;
            color: var(--secondary);
            line-height: 1.2;
            display: block;
        }

        .hero-stat-card .label {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.68);
            margin-top: 6px;
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 130px 0 60px;
            }

            .hero-stats {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
                margin-top: 40px;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-buttons .btn {
                justify-content: center;
                text-align: center;
            }
        }

        /* ===================== 通用板块 ===================== */
        .section-block {
            padding: 90px 0;
        }

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

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            font-weight: 500;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 12px;
        }

        .section-label::before {
            content: '';
            width: 20px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-title {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 600;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 1.02rem;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 640px;
            margin-bottom: 0;
        }

        .section-header {
            margin-bottom: 48px;
        }

        @media (max-width: 768px) {
            .section-block {
                padding: 60px 0;
            }

            .section-header {
                margin-bottom: 32px;
            }
        }

        /* ===================== 安全能力卡片 ===================== */
        .security-cards .row {
            --bs-gutter-y: 24px;
        }

        .security-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 32px 28px;
            height: 100%;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .security-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--btn-grad);
            transform: scaleX(0.4);
            opacity: 0.6;
            transition: all 0.3s ease;
        }

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

        .security-card:hover::before {
            transform: scaleX(1);
            opacity: 1;
        }

        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: rgba(15, 123, 119, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 20px;
            transition: all 0.3s ease;
        }

        .security-card:hover .card-icon {
            background: var(--btn-grad);
            color: #fff;
            transform: scale(1.04);
        }

        .security-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .security-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 20px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--primary);
        }

        .card-link i {
            transition: transform 0.25s ease;
        }

        .card-link:hover i {
            transform: translateX(4px);
        }

        .card-link:hover {
            color: var(--primary-600);
        }

        .security-card-large {
            background: linear-gradient(145deg, rgba(15, 123, 119, 0.04), rgba(255, 255, 255, 1));
            border: 1px solid rgba(15, 123, 119, 0.15);
        }

        @media (max-width: 768px) {
            .security-card {
                padding: 24px 20px;
            }
        }

        /* ===================== 防护机制图文区 ===================== */
        .protection-wrap {
            background: var(--bg-light);
            border-radius: var(--radius-large);
            padding: 56px;
            display: flex;
            align-items: center;
            gap: 56px;
        }

        .protection-visual {
            flex: 1;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 50px rgba(11, 30, 46, 0.15);
            position: relative;
        }

        .protection-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 320px;
            transition: transform 0.5s ease;
        }

        .protection-visual:hover img {
            transform: scale(1.02);
        }

        .protection-content {
            flex: 1;
        }

        .protection-content h3 {
            font-size: 1.6rem;
            font-weight: 600;
            line-height: 1.35;
            margin-bottom: 18px;
            color: var(--text-primary);
        }

        .protection-content p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .protection-list {
            list-style: none;
            padding: 0;
            margin: 24px 0 0;
        }

        .protection-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 14px;
            font-size: 0.95rem;
            color: var(--text-primary);
        }

        .protection-list li i {
            color: var(--primary);
            font-size: 1.1rem;
            margin-top: 2px;
            flex-shrink: 0;
        }

        @media (max-width: 992px) {
            .protection-wrap {
                flex-direction: column;
                padding: 36px 28px;
                gap: 36px;
            }

            .protection-visual img {
                min-height: 240px;
            }
        }

        @media (max-width: 576px) {
            .protection-wrap {
                padding: 24px 18px;
                border-radius: 18px;
            }

            .protection-content h3 {
                font-size: 1.3rem;
            }
        }

        /* ===================== 流程区 ===================== */
        .process-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            color: #fff;
        }

        .process-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(11, 30, 46, 0.96) 0%, rgba(11, 30, 46, 0.88) 60%, rgba(15, 123, 119, 0.45) 100%);
            z-index: 1;
        }

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

        .process-section .section-title {
            color: #fff;
        }

        .process-section .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-top: 56px;
            position: relative;
        }

        .process-steps::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 12%;
            right: 12%;
            height: 1px;
            border-top: 1px dashed rgba(255, 255, 255, 0.2);
            z-index: 0;
        }

        .process-step {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .step-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--btn-grad);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 24px;
            color: #fff;
            box-shadow: 0 12px 30px rgba(15, 123, 119, 0.4);
            border: 4px solid rgba(11, 30, 46, 0.6);
            position: relative;
        }

        .step-number {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--secondary);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid var(--bg-dark);
        }

        .process-step h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: #fff;
        }

        .process-step p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
            max-width: 200px;
            margin: 0 auto;
        }

        @media (max-width: 992px) {
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 40px 24px;
            }

            .process-steps::before {
                display: none;
            }
        }

        @media (max-width: 576px) {
            .process-steps {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        /* ===================== 安全数据 ===================== */
        .security-data-section {
            background: var(--bg-dark);
            color: #fff;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .security-data-section::before {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(15, 123, 119, 0.12);
            top: -160px;
            right: -100px;
            z-index: 0;
        }

        .security-data-section .container {
            position: relative;
            z-index: 1;
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 48px;
            margin-bottom: 56px;
        }

        .data-item {
            text-align: center;
            padding: 32px 16px;
            border-radius: 20px;
            transition: all 0.3s ease;
        }

        .data-item.primary-border {
            border: 1px solid rgba(15, 123, 119, 0.4);
            background: rgba(15, 123, 119, 0.08);
        }

        .data-item .data-num {
            font-size: clamp(2.2rem, 3vw, 2.8rem);
            font-weight: 600;
            color: var(--secondary);
            line-height: 1.2;
            display: block;
        }

        .data-item .data-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 12px;
        }

        .data-quote {
            display: flex;
            gap: 24px;
            align-items: flex-start;
            background: rgba(255, 255, 255, 0.04);
            border-radius: 20px;
            padding: 36px 40px;
            border-left: 4px solid var(--primary);
        }

        .data-quote i {
            font-size: 3rem;
            color: var(--primary);
            line-height: 1;
            flex-shrink: 0;
        }

        .data-quote blockquote {
            margin: 0;
            font-size: 1.05rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.75);
            font-style: normal;
        }

        .data-quote .quote-author {
            margin-top: 16px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
        }

        @media (max-width: 992px) {
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 576px) {
            .data-grid {
                grid-template-columns: 1fr;
            }

            .data-quote {
                flex-direction: column;
                padding: 24px;
                gap: 12px;
            }
        }

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

        .faq-accordion .accordion-item {
            border: 1px solid var(--border);
            border-radius: 14px !important;
            margin-bottom: 12px;
            background: #fff;
            overflow: hidden;
            box-shadow: none;
            transition: all 0.25s ease;
        }

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

        .faq-accordion .accordion-item.is-open {
            background: rgba(15, 123, 119, 0.04);
            border-color: rgba(15, 123, 119, 0.2);
        }

        .faq-accordion .accordion-button {
            padding: 20px 24px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-primary);
            background: transparent;
            box-shadow: none;
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .faq-accordion .accordion-button::after {
            display: none;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: transparent;
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(15, 123, 119, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--primary);
            flex-shrink: 0;
            font-weight: 600;
        }

        .faq-accordion .accordion-button:not(.collapsed) .faq-icon {
            background: var(--primary);
            color: #fff;
        }

        .faq-arrow {
            margin-left: auto;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: all 0.3s ease;
            flex-shrink: 0;
        }

        .faq-accordion .accordion-button:not(.collapsed) .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-accordion .accordion-body {
            padding: 0 24px 24px 66px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        @media (max-width: 576px) {
            .faq-accordion .accordion-body {
                padding: 0 16px 20px 52px;
            }

            .faq-accordion .accordion-button {
                padding: 16px 16px;
                font-size: 0.98rem;
            }
        }

        /* ===================== CTA ===================== */
        .cta-section {
            position: relative;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            padding: 90px 0;
            text-align: center;
            color: #fff;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(11, 30, 46, 0.88);
            z-index: 1;
        }

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

        .cta-section h2 {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 600;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.72);
            max-width: 560px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

        .cta-section .btn-gradient {
            padding: 16px 44px;
            font-size: 1.05rem;
        }

        .cta-section .btn-outline-white {
            padding: 16px 36px;
            font-size: 1rem;
            margin-left: 12px;
        }

        @media (max-width: 576px) {
            .cta-section {
                padding: 60px 0;
            }

            .cta-section .btns-wrap {
                display: flex;
                flex-direction: column;
                gap: 14px;
                align-items: stretch;
            }

            .cta-section .btn-outline-white {
                margin-left: 0;
            }

            .cta-section .btn {
                justify-content: center;
            }
        }

        /* ===================== 页脚 ===================== */
        .site-footer {
            background: #0B1E2E;
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.15rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            font-size: 16px;
            border-radius: 10px;
        }

        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 260px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
            padding-bottom: 10px;
            position: relative;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

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

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.92rem;
            transition: all 0.25s ease;
        }

        .footer-col ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-contact p {
            font-size: 0.92rem;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-contact p i {
            color: var(--primary);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            padding: 24px 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom .sep {
            opacity: 0.3;
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 6px;
                text-align: center;
            }

            .footer-bottom .sep {
                display: none;
            }
        }

        /* ===================== 移动端浮动 CTA ===================== */
        .mobile-float-cta {
            display: none;
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 999;
            background: var(--btn-grad);
            color: #fff;
            padding: 14px 28px;
            border-radius: 100px;
            font-size: 0.95rem;
            font-weight: 500;
            box-shadow: 0 12px 30px rgba(15, 123, 119, 0.4);
            transition: all 0.3s ease;
        }

        .mobile-float-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 16px 40px rgba(15, 123, 119, 0.5);
            color: #fff;
        }

        @media (max-width: 768px) {
            .mobile-float-cta.show {
                display: inline-flex;
                align-items: center;
                gap: 8px;
            }
        }

        /* ===================== 可访问性 ===================== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 4px;
            border-radius: 4px;
        }

/* roulang page: category3 */
:root {
            --primary: #0F7B77;
            --primary-600: #0C635F;
            --primary-light: rgba(15, 123, 119, 0.12);
            --secondary: #D4A853;
            --bg-light: #F7F9FA;
            --bg-dark: #0B1E2E;
            --surface: #FFFFFF;
            --text-primary: #1C2B36;
            --text-secondary: #5C6B7A;
            --border: rgba(11, 30, 46, 0.08);
            --btn-grad: linear-gradient(135deg, #12A5A0 0%, #0F7B77 100%);
            --radius-card: 20px;
            --radius-large: 24px;
            --radius-button: 100px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --shadow-card: 0 10px 30px rgba(11, 30, 46, 0.06);
            --shadow-hover: 0 16px 40px rgba(11, 30, 46, 0.10);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--text-primary);
            background: var(--surface);
            font-size: 16px;
            line-height: 1.75;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.25s ease;
        }

        a:hover {
            color: var(--primary-600);
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-pad {
            padding: 90px 0;
        }

        .section-title {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 600;
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
            color: var(--text-primary);
        }

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 720px;
            margin-bottom: 0;
            line-height: 1.8;
        }

        .text-center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ---------- Header / Nav ---------- */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow 0.3s ease, background 0.3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(11, 30, 46, 0.08);
        }

        .navbar-wrap {
            max-width: 1320px;
            height: 76px;
            margin: 0 auto;
            padding: 0 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo-wrap {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 12px;
            background: var(--btn-grad);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            line-height: 1.2;
        }

        .logo-text span {
            color: var(--primary);
            font-weight: 500;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-link-item {
            position: relative;
            display: inline-block;
            padding: 8px 2px;
            font-size: 0.95rem;
            color: #2B3A4A;
            text-decoration: none;
            transition: color 0.25s ease;
            font-weight: 400;
        }

        .nav-link-item::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            transition: width 0.25s ease;
        }

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

        .nav-link-item:hover::after,
        .nav-link-item.active::after {
            width: 100%;
        }

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

        .header-cta {
            display: inline-flex;
            align-items: center;
            padding: 9px 24px;
            border: 1px solid var(--primary);
            border-radius: var(--radius-button);
            color: var(--primary);
            font-size: 0.9rem;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .header-cta:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 18px rgba(15, 123, 119, 0.25);
        }

        .navbar-toggler {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            padding: 8px;
            cursor: pointer;
        }

        .navbar-toggler span {
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .navbar-toggler.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .navbar-toggler.active span:nth-child(2) {
            opacity: 0;
        }

        .navbar-toggler.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ---------- Hero / Page Banner ---------- */
        .page-hero {
            position: relative;
            padding: 170px 0 90px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            color: #fff;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 30, 46, 0.92) 0%, rgba(11, 30, 46, 0.75) 60%, rgba(11, 30, 46, 0.5) 100%);
        }

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

        .breadcrumb-line {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
        }

        .breadcrumb-line a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
        }

        .breadcrumb-line a:hover {
            color: var(--secondary);
        }

        .breadcrumb-line .sep {
            color: rgba(255, 255, 255, 0.4);
        }

        .page-hero h1 {
            font-size: clamp(2rem, 4vw, 3.2rem);
            font-weight: 600;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .page-hero .lead {
            font-size: clamp(1rem, 1.5vw, 1.15rem);
            color: rgba(255, 255, 255, 0.78);
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 28px;
        }

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

        .btn-gly {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: var(--radius-button);
            font-size: 0.95rem;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }

        .btn-solid {
            background: var(--btn-grad);
            color: #fff;
            box-shadow: 0 10px 20px -8px rgba(15, 123, 119, 0.4);
        }

        .btn-solid:hover {
            filter: brightness(1.08);
            transform: translateY(-2px);
            color: #fff;
            box-shadow: 0 14px 24px -10px rgba(15, 123, 119, 0.5);
        }

        .btn-outline-light {
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }

        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ---------- Feature Overview Cards ---------- */
        .feature-overview {
            background: var(--bg-light);
        }

        .feature-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            padding: 32px;
            height: 100%;
            border: 1px solid rgba(11, 30, 46, 0.04);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--btn-grad);
            transition: height 0.3s ease;
        }

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

        .feature-card:hover::before {
            height: 5px;
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ---------- Compare Table ---------- */
        .compare-section {
            background: var(--surface);
        }

        .table-wrap {
            background: var(--surface);
            border-radius: var(--radius-large);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .table-scroll {
            overflow-x: auto;
        }

        .func-table {
            width: 100%;
            margin: 0;
            border-collapse: collapse;
            min-width: 760px;
        }

        .func-table thead th {
            background: var(--bg-dark);
            color: #fff;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 18px 22px;
            text-align: left;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .func-table tbody td {
            padding: 18px 22px;
            border-bottom: 1px solid var(--border);
            font-size: 0.93rem;
            color: var(--text-primary);
            vertical-align: top;
            line-height: 1.7;
        }

        .func-table tbody tr:last-child td {
            border-bottom: none;
        }

        .func-table tbody tr:nth-child(even) {
            background: #FAFCFC;
        }

        .func-table tbody tr:hover {
            background: rgba(15, 123, 119, 0.03);
        }

        .table-badge {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 100px;
            font-size: 0.78rem;
            font-weight: 500;
            background: var(--primary-light);
            color: var(--primary);
            white-space: nowrap;
        }

        .table-note {
            margin-top: 18px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ---------- Scenario Section (dark) ---------- */
        .scenario-section {
            background: var(--bg-dark);
            color: #fff;
        }

        .scenario-section .section-title {
            color: #fff;
        }

        .scenario-section .section-subtitle {
            color: rgba(255, 255, 255, 0.65);
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            margin-top: 44px;
        }

        .scenario-item {
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-large);
            padding: 28px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: background 0.3s ease, transform 0.3s ease;
        }

        .scenario-item:hover {
            background: rgba(255, 255, 255, 0.09);
            transform: translateY(-4px);
        }

        .scenario-item img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 14px;
            margin-bottom: 18px;
        }

        .scenario-item h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: #fff;
        }

        .scenario-item p {
            font-size: 0.93rem;
            color: rgba(255, 255, 255, 0.78);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .scenario-item .num-tag {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--btn-grad);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 14px;
        }

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

        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--surface);
            border-radius: 14px;
            border: 1px solid var(--border);
            margin-bottom: 12px;
            padding: 6px 20px;
            transition: background 0.3s ease, border-color 0.3s ease;
            overflow: hidden;
        }

        .faq-item.open {
            background: rgba(15, 123, 119, 0.04);
            border-color: rgba(15, 123, 119, 0.15);
        }

        .faq-button {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 0;
            background: none;
            border: none;
            font-size: 1.02rem;
            font-weight: 500;
            color: var(--text-primary);
            text-align: left;
            cursor: pointer;
            transition: color 0.25s ease;
            font-family: inherit;
        }

        .faq-button:hover {
            color: var(--primary);
        }

        .faq-icon {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 600;
            flex-shrink: 0;
        }

        .faq-arrow {
            margin-left: auto;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-body-inner {
            padding: 0 0 18px 40px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ---------- CTA ---------- */
        .cta-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 100px 0;
            color: #fff;
            text-align: center;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(11, 30, 46, 0.82);
        }

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

        .cta-section h2 {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 600;
            margin-bottom: 14px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.72);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 30px;
            line-height: 1.8;
        }

        .cta-section .btn-solid {
            font-size: 1rem;
            padding: 14px 36px;
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.65);
            padding: 70px 0 30px;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-logo .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 16px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.8;
            max-width: 280px;
            margin-bottom: 0;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h4::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

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

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

        .footer-col ul a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color 0.25s ease, padding-left 0.25s ease;
        }

        .footer-col ul a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }

        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
        }

        .footer-contact p i {
            color: var(--primary);
            font-size: 1rem;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-bottom .sep {
            color: rgba(255, 255, 255, 0.2);
        }

        /* ---------- Focus ---------- */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 4px;
            border-radius: 4px;
        }

        /* ---------- Responsive ---------- */
        @media (max-width: 992px) {
            .navbar-wrap {
                padding: 0 20px;
            }

            .nav-links {
                position: fixed;
                top: 76px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 24px 20px;
                transform: translateY(-150%);
                transition: transform 0.35s ease;
                box-shadow: 0 24px 40px rgba(11, 30, 46, 0.08);
                border-radius: 0 0 20px 20px;
                max-height: calc(100vh - 76px);
                overflow-y: auto;
            }

            .nav-links.open {
                transform: translateY(0);
            }

            .nav-links li {
                border-bottom: 1px solid rgba(11, 30, 46, 0.05);
            }

            .nav-links li:last-child {
                border-bottom: none;
            }

            .nav-link-item {
                display: block;
                padding: 14px 8px;
                font-size: 1.1rem;
            }

            .nav-link-item::after {
                display: none;
            }

            .nav-link-item.active {
                background: var(--primary-light);
                border-radius: 8px;
                padding-left: 14px;
            }

            .navbar-toggler {
                display: flex;
            }

            .page-hero {
                padding: 140px 0 70px;
            }

            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

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

        @media (max-width: 768px) {
            .section-pad {
                padding: 60px 0;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }

            .hero-btns {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-gly {
                justify-content: center;
            }

            .table-wrap {
                border-radius: 16px;
            }

            .func-table thead th,
            .func-table tbody td {
                padding: 14px 16px;
            }
        }

        @media (max-width: 520px) {
            .navbar-wrap {
                height: 64px;
            }

            .nav-links {
                top: 64px;
                max-height: calc(100vh - 64px);
            }

            .logo-text {
                font-size: 1.1rem;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }

            .header-cta {
                padding: 8px 16px;
                font-size: 0.82rem;
            }

            .page-hero {
                padding: 120px 0 60px;
            }

            .section-title {
                font-size: 1.6rem;
            }

            .feature-card {
                padding: 24px;
            }

            .scenario-item {
                padding: 20px;
            }

            .scenario-item img {
                height: 160px;
            }

            .cta-section {
                padding: 70px 0;
            }

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