/* roulang page: index */
:root {
            --primary: #0E5654;
            --primary-dark: #073C3E;
            --accent: #E4924A;
            --accent-light: rgba(228, 146, 74, 0.12);
            --bg-warm: #F7F5F0;
            --bg-white: #FFFFFF;
            --text-dark: #1C2E2C;
            --text-secondary: #5C706E;
            --border-color: #E5E0D6;
            --footer-bg: #072A29;
            --radius-lg: 20px;
            --radius-md: 18px;
            --radius-sm: 12px;
            --radius-pill: 50px;
            --shadow-default: 0 8px 24px rgba(28, 46, 44, 0.06);
            --shadow-hover: 0 16px 40px rgba(28, 46, 44, 0.12);
            --transition: all 0.25s ease;
            --font-main: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
            --font-num: 'Inter', 'Segoe UI', sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--bg-warm);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
        }
        input,
        button,
        textarea {
            font-family: var(--font-main);
        }
        .container {
            max-width: 1200px;
        }
        .section-padding {
            padding: 96px 0;
        }
        @media (max-width: 991px) {
            .section-padding {
                padding: 72px 0;
            }
        }
        @media (max-width: 575px) {
            .section-padding {
                padding: 56px 0;
            }
        }
        .h1,
        .h2,
        .h3,
        h1,
        h2,
        h3 {
            font-weight: 700;
            line-height: 1.3;
        }
        .h1,
        h1 {
            font-size: 44px;
        }
        .h2,
        h2 {
            font-size: 32px;
        }
        .h3,
        h3 {
            font-size: 20px;
            font-weight: 600;
        }
        @media (max-width: 991px) {
            .h1,
            h1 {
                font-size: 36px;
            }
            .h2,
            h2 {
                font-size: 28px;
            }
        }
        @media (max-width: 575px) {
            .h1,
            h1 {
                font-size: 28px;
            }
            .h2,
            h2 {
                font-size: 24px;
            }
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 32px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            border: 1px solid transparent;
            line-height: 1.4;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn:hover {
            transform: translateY(-2px);
        }
        .btn:focus-visible {
            outline: 3px solid rgba(228, 146, 74, 0.5);
            outline-offset: 2px;
        }
        .btn:active {
            transform: translateY(0);
            opacity: 0.9;
        }
        .btn-primary-custom {
            background: linear-gradient(135deg, var(--accent), #D47B36);
            color: #fff;
            box-shadow: 0 4px 16px rgba(228, 146, 74, 0.3);
        }
        .btn-primary-custom:hover {
            color: #fff;
            box-shadow: 0 8px 24px rgba(228, 146, 74, 0.4);
        }
        .btn-dark-custom {
            background: var(--primary-dark);
            color: #fff;
        }
        .btn-dark-custom:hover {
            color: #fff;
            background: var(--primary);
            box-shadow: var(--shadow-hover);
        }
        .btn-outline-light-custom {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.35);
            backdrop-filter: blur(8px);
        }
        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, 0.2);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
        }
        .btn-white-custom {
            background: #fff;
            color: var(--primary);
        }
        .btn-white-custom:hover {
            color: var(--primary);
            box-shadow: var(--shadow-hover);
        }
        .btn-sm-custom {
            padding: 8px 20px;
            font-size: 14px;
            border-radius: var(--radius-pill);
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: 72px;
            transition: var(--transition);
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.18);
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .site-header .navbar {
            padding-top: 0;
            padding-bottom: 0;
            height: 72px;
        }
        .site-header .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-right: 0;
            padding: 12px 0;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 10px;
            color: #fff;
            font-size: 13px;
            font-weight: 800;
            letter-spacing: 0.02em;
            font-family: var(--font-num);
        }
        .logo-text {
            font-size: 15px;
            font-weight: 700;
            color: rgba(255, 255, 255, 0.95);
            letter-spacing: 0.02em;
            line-height: 1.2;
            white-space: nowrap;
        }
        .site-header.scrolled .logo-text {
            color: var(--text-dark);
        }
        .site-header .navbar-nav {
            gap: 2px;
        }
        .site-header .nav-link {
            color: rgba(255, 255, 255, 0.9) !important;
            font-size: 15px;
            font-weight: 500;
            padding: 10px 16px !important;
            border-radius: 8px;
            position: relative;
            transition: color 0.3s ease;
        }
        .site-header.scrolled .nav-link {
            color: var(--text-dark) !important;
        }
        .site-header .nav-link:hover {
            color: #fff !important;
        }
        .site-header.scrolled .nav-link:hover {
            color: var(--primary) !important;
        }
        .site-header .nav-link.active {
            font-weight: 700;
            color: #fff !important;
        }
        .site-header.scrolled .nav-link.active {
            color: var(--primary) !important;
        }
        .site-header .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
        }
        .header-cta {
            margin-left: 16px;
        }
        .header-cta .btn-header-login {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 38px;
            padding: 0 24px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            border: none;
            transition: var(--transition);
            background: #fff;
            color: var(--primary);
        }
        .site-header.scrolled .btn-header-login {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
        }
        .header-cta .btn-header-login:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .navbar-toggler {
            border: none;
            padding: 6px 8px;
            background: transparent;
        }
        .navbar-toggler .toggler-icon {
            display: block;
            width: 24px;
            height: 2px;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 2px;
            margin: 5px 0;
            transition: var(--transition);
        }
        .site-header.scrolled .toggler-icon {
            background: var(--text-dark);
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid rgba(228, 146, 74, 0.5);
        }
        @media (max-width: 991px) {
            .navbar-collapse {
                background: #fff;
                border-radius: 16px;
                margin-top: 12px;
                padding: 16px;
                box-shadow: var(--shadow-hover);
                border: 1px solid var(--border-color);
            }
            .site-header .nav-link {
                color: var(--text-dark) !important;
                padding: 12px 16px !important;
                font-size: 18px;
            }
            .site-header .nav-link.active {
                color: var(--primary) !important;
                background: var(--accent-light);
            }
            .site-header .nav-link.active::after {
                display: none;
            }
            .header-cta {
                margin-left: 0;
                margin-top: 12px;
                padding: 0 12px 8px;
            }
            .header-cta .btn-header-login {
                width: 100%;
                background: linear-gradient(135deg, var(--primary), var(--primary-dark));
                color: #fff;
            }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 160px 0 100px;
            overflow: hidden;
            color: #fff;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -80px;
            left: -60px;
            width: 480px;
            height: 480px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(228, 146, 74, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -120px;
            right: -40px;
            width: 520px;
            height: 520px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.10) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-content {
            padding-top: 20px;
        }
        .hero-content .h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            color: #fff;
            letter-spacing: -0.01em;
        }
        .hero-content .h1 .accent-text {
            color: var(--accent);
        }
        .hero-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 480px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 32px;
        }
        .hero-tags .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.22);
            border-radius: var(--radius-pill);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(6px);
        }
        .hero-tags .tag-pill i {
            font-size: 12px;
            color: var(--accent);
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .hero-visual {
            position: relative;
            padding: 16px;
        }
        .hero-visual .hero-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 16px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
        }
        .hero-visual .hero-card img {
            width: 100%;
            border-radius: 14px;
            object-fit: cover;
            aspect-ratio: 16/10;
        }
        .badge-card {
            position: absolute;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(10px);
            border-radius: 16px;
            padding: 14px 20px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
            display: flex;
            flex-direction: column;
            align-items: center;
            min-width: 110px;
        }
        .badge-card .badge-num {
            font-family: var(--font-num);
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
        }
        .badge-card .badge-label {
            font-size: 12px;
            color: var(--text-dark);
            margin-top: 4px;
            font-weight: 500;
        }
        .badge-card.badge-top {
            top: -10px;
            right: -10px;
        }
        .badge-card.badge-bottom {
            bottom: 10px;
            left: -10px;
        }
        @media (max-width: 991px) {
            .hero {
                padding: 140px 0 80px;
            }
            .hero-content .h1 {
                font-size: 36px;
            }
            .hero-visual {
                margin-top: 40px;
                padding: 0;
            }
            .badge-card.badge-top {
                right: 4px;
            }
            .badge-card.badge-bottom {
                left: 4px;
            }
        }
        @media (max-width: 575px) {
            .hero {
                padding: 120px 0 64px;
            }
            .hero-content .h1 {
                font-size: 28px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-tags .tag-pill {
                font-size: 12px;
                padding: 5px 12px;
            }
            .badge-card {
                min-width: 90px;
                padding: 10px 14px;
            }
            .badge-card .badge-num {
                font-size: 22px;
            }
        }

        /* ===== Section Header / General ===== */
        .section-header {
            margin-bottom: 48px;
        }
        .section-header .h2 {
            margin-bottom: 12px;
        }
        .section-header p {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 640px;
        }

        /* ===== Pain Points ===== */
        .pain-section {
            background: var(--bg-warm);
            padding: 96px 0;
        }
        .pain-intro {
            padding-right: 32px;
        }
        .pain-intro .h2 {
            margin-bottom: 16px;
        }
        .pain-intro p {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.8;
        }
        .pain-intro .pain-note {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-light);
            color: #B06820;
            font-size: 14px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            margin-top: 24px;
        }
        .pain-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-default);
            border: 1px solid rgba(255, 255, 255, 0.7);
            transition: var(--transition);
            height: 100%;
        }
        .pain-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(228, 146, 74, 0.3);
        }
        .pain-card .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(14, 86, 84, 0.10);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
            margin-bottom: 16px;
        }
        .pain-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .pain-card p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        @media (max-width: 991px) {
            .pain-section {
                padding: 72px 0;
            }
            .pain-intro {
                padding-right: 0;
                margin-bottom: 32px;
            }
        }
        @media (max-width: 575px) {
            .pain-section {
                padding: 56px 0;
            }
            .pain-card {
                padding: 24px 20px;
            }
        }

        /* ===== Solution ===== */
        .solution-section {
            background: #fff;
            padding: 96px 0;
        }
        .solution-visual {
            position: relative;
        }
        .solution-visual .solution-img-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-default);
        }
        .solution-visual img {
            width: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }
        .solution-info-bar {
            position: absolute;
            bottom: 16px;
            left: 16px;
            right: 16px;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(10px);
            border-radius: 14px;
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .solution-info-bar .info-num {
            font-family: var(--font-num);
            font-size: 24px;
            font-weight: 800;
            color: var(--accent);
        }
        .solution-info-bar .info-text {
            font-size: 13px;
            color: var(--text-dark);
            line-height: 1.5;
        }
        .solution-content {
            padding-left: 40px;
        }
        .solution-content .h2 {
            margin-bottom: 16px;
        }
        .solution-content .solution-desc {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 28px;
        }
        .solution-items {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .solution-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }
        .solution-item .sol-icon {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: rgba(14, 86, 84, 0.10);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
        }
        .solution-item h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .solution-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }
        .solution-tip {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--accent-light);
            border-radius: 14px;
            padding: 14px 20px;
            margin-top: 28px;
            font-size: 14px;
            color: #B06820;
        }
        .solution-tip a {
            color: #B06820;
            font-weight: 600;
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .solution-tip a:hover {
            color: var(--primary-dark);
        }
        @media (max-width: 991px) {
            .solution-section {
                padding: 72px 0;
            }
            .solution-content {
                padding-left: 0;
                margin-top: 40px;
            }
        }
        @media (max-width: 575px) {
            .solution-section {
                padding: 56px 0;
            }
            .solution-items {
                grid-template-columns: 1fr;
            }
            .solution-tip {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        /* ===== Stats ===== */
        .stats-section {
            background: var(--primary-dark);
            padding: 96px 0;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(228, 146, 74, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }
        .stats-intro .h2 {
            color: #fff;
            margin-bottom: 16px;
        }
        .stats-intro p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            line-height: 1.8;
            max-width: 360px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .stat-badge {
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            position: relative;
            transition: var(--transition);
        }
        .stat-badge:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }
        .stat-badge .stat-num {
            font-family: var(--font-num);
            font-size: 36px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-badge .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 6px;
        }
        .stat-badge .stat-dot {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            opacity: 0.7;
        }
        @media (max-width: 991px) {
            .stats-section {
                padding: 72px 0;
            }
            .stats-intro {
                margin-bottom: 32px;
            }
        }
        @media (max-width: 575px) {
            .stats-section {
                padding: 56px 0;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Testimonials ===== */
        .testimonials-section {
            background: var(--bg-warm);
            padding: 96px 0;
        }
        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-default);
            border: 1px solid rgba(255, 255, 255, 0.7);
            transition: var(--transition);
            height: 100%;
            position: relative;
        }
        .testimonial-card.main-card {
            border-top: 4px solid var(--primary);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .testimonial-card .stars {
            color: var(--accent);
            font-size: 14px;
            margin-bottom: 16px;
            letter-spacing: 2px;
        }
        .testimonial-card .quote {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-dark);
            margin-bottom: 24px;
            position: relative;
            padding-left: 18px;
            border-left: 3px solid var(--accent);
        }
        .testimonial-card .user-info {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-card .user-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .testimonial-card .user-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
        }
        .testimonial-card .user-role {
            font-size: 13px;
            color: var(--text-secondary);
        }
        @media (max-width: 991px) {
            .testimonials-section {
                padding: 72px 0;
            }
        }
        @media (max-width: 575px) {
            .testimonials-section {
                padding: 56px 0;
            }
            .testimonial-card {
                padding: 24px 20px;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #fff;
            padding: 96px 0;
        }
        .faq-intro .h2 {
            margin-bottom: 16px;
        }
        .faq-intro p {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .faq-intro .faq-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
        }
        .faq-intro .faq-link i {
            transition: transform 0.3s ease;
        }
        .faq-intro .faq-link:hover i {
            transform: translateX(4px);
        }
        .faq-list .faq-item {
            background: var(--bg-warm);
            border-radius: 16px;
            padding: 0;
            margin-bottom: 12px;
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .faq-list .faq-item.active {
            border-color: var(--accent);
            background: #fff;
            box-shadow: var(--shadow-default);
        }
        .faq-list .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            border-radius: 16px;
        }
        .faq-list .faq-q .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-light);
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }
        .faq-list .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: #fff;
        }
        .faq-list .faq-a {
            padding: 0 24px 20px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
            display: none;
        }
        .faq-list .faq-item.active .faq-a {
            display: block;
        }
        @media (max-width: 991px) {
            .faq-section {
                padding: 72px 0;
            }
            .faq-intro {
                margin-bottom: 32px;
            }
        }
        @media (max-width: 575px) {
            .faq-section {
                padding: 56px 0;
            }
            .faq-list .faq-q {
                padding: 16px 16px;
            }
            .faq-list .faq-a {
                padding: 0 16px 16px;
            }
        }

        /* ===== News ===== */
        .news-section {
            background: var(--bg-warm);
            padding: 96px 0;
        }
        .news-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 40px;
        }
        .news-header .h2 {
            margin-bottom: 0;
        }
        .news-header .news-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
        }
        .news-header .news-more i {
            transition: transform 0.3s ease;
        }
        .news-header .news-more:hover i {
            transform: translateX(4px);
        }
        .news-card-lg {
            display: flex;
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-default);
            border: 1px solid rgba(255, 255, 255, 0.7);
            transition: var(--transition);
            text-decoration: none;
            height: 100%;
        }
        .news-card-lg:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(228, 146, 74, 0.3);
        }
        .news-card-lg .news-thumb {
            width: 42%;
            min-height: 200px;
            background: var(--border-color);
            overflow: hidden;
            flex-shrink: 0;
        }
        .news-card-lg .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-card-lg .news-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
        }
        .news-tag {
            display: inline-flex;
            align-items: center;
            align-self: flex-start;
            padding: 4px 12px;
            background: rgba(14, 86, 84, 0.10);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            margin-bottom: 10px;
        }
        .news-card-lg h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-lg p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
            flex-grow: 1;
        }
        .news-date {
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .news-date i {
            font-size: 12px;
            color: var(--accent);
        }
        .news-card-sm {
            display: block;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-default);
            border: 1px solid rgba(255, 255, 255, 0.7);
            transition: var(--transition);
            text-decoration: none;
            height: 100%;
        }
        .news-card-sm:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(228, 146, 74, 0.3);
        }
        .news-card-sm h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-sm p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .news-empty {
            background: #fff;
            border: 2px dashed var(--border-color);
            border-radius: 24px;
            padding: 60px 20px;
            text-align: center;
            color: var(--text-secondary);
            font-size: 15px;
        }
        .news-empty i {
            font-size: 36px;
            color: var(--border-color);
            margin-bottom: 12px;
            display: block;
        }
        @media (max-width: 991px) {
            .news-section {
                padding: 72px 0;
            }
            .news-card-lg {
                flex-direction: column;
            }
            .news-card-lg .news-thumb {
                width: 100%;
                min-height: 180px;
            }
        }
        @media (max-width: 575px) {
            .news-section {
                padding: 56px 0;
            }
            .news-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 100px 0;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(ellipse, rgba(228, 146, 74, 0.20) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section .h2 {
            color: #fff;
            margin-bottom: 16px;
            font-size: 36px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto 36px;
        }
        .cta-section .btn {
            position: relative;
            z-index: 2;
        }
        @media (max-width: 575px) {
            .cta-section {
                padding: 64px 0;
            }
            .cta-section .h2 {
                font-size: 26px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--footer-bg);
            color: rgba(255, 255, 255, 0.75);
            padding: 72px 0 0;
        }
        .site-footer .footer-brand .logo-icon {
            margin-bottom: 12px;
        }
        .site-footer .footer-brand .logo-text {
            font-size: 18px;
            color: #fff;
            font-weight: 700;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 12px;
            max-width: 260px;
        }
        .site-footer .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: var(--transition);
            text-decoration: none;
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
        }
        .site-footer .footer-links a:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 2px;
            border-radius: 2px;
        }
        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-contact p i {
            color: var(--accent);
            width: 16px;
        }
        .footer-qr {
            width: 120px;
            height: 120px;
            background: #fff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 16px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 20px 0;
            margin-top: 48px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }
        @media (max-width: 991px) {
            .site-footer {
                padding-top: 56px;
            }
            .site-footer .footer-col {
                margin-bottom: 32px;
            }
        }
        @media (max-width: 575px) {
            .site-footer .footer-bottom .container {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0E5654;
            --primary-dark: #073C3E;
            --accent: #E4924A;
            --accent-soft: rgba(228, 146, 74, 0.12);
            --bg: #F7F5F0;
            --white: #FFFFFF;
            --ink: #1C2E2C;
            --muted: #5C706E;
            --border: #E5E0D6;
            --footer-bg: #072A29;
            --radius-lg: 20px;
            --radius-md: 18px;
            --radius-sm: 12px;
            --shadow-sm: 0 8px 24px rgba(28, 46, 44, 0.06);
            --shadow-lg: 0 16px 40px rgba(28, 46, 44, 0.12);
            --font-main: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Inter, "Segoe UI", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-main);
            background: var(--bg);
            color: var(--ink);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

        .container {
            max-width: 1200px;
        }

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

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

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

        .section {
            padding: 96px 0;
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.08em;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--ink);
            margin: 0 0 16px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--muted);
            margin-bottom: 0;
            line-height: 1.8;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 72px;
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.18);
            transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }

        .site-header .container,
        .site-header .navbar {
            height: 72px;
        }

        .site-header .navbar {
            padding: 0;
        }

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

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 800;
            font-size: 15px;
            letter-spacing: 0.02em;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            white-space: nowrap;
            transition: color 0.3s ease;
        }

        .site-header:not(.scrolled) .logo-text,
        .site-header:not(.scrolled) .nav-link {
            color: rgba(255, 255, 255, 0.94);
        }

        .site-header:not(.scrolled) .nav-link:hover {
            color: #fff;
        }

        .navbar-nav {
            align-items: center;
            gap: 4px;
        }

        .navbar-nav .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--ink);
            padding: 8px 14px;
            transition: color 0.25s ease, opacity 0.25s ease;
        }

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

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

        .navbar-nav .nav-link.active {
            font-weight: 700;
        }

        .header-cta {
            margin-left: 12px;
        }

        .btn-header-login {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 38px;
            padding: 0 22px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.94);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            border: 1px solid transparent;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .site-header.scrolled .btn-header-login {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-color: rgba(7, 60, 62, 0.3);
        }

        .btn-header-login:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(7, 60, 62, 0.2);
            color: var(--primary);
        }

        .site-header.scrolled .btn-header-login:hover {
            color: #fff;
        }

        .navbar-toggler {
            border: none;
            padding: 6px 4px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid rgba(228, 146, 74, 0.6);
            outline-offset: 2px;
            border-radius: 6px;
        }

        .toggler-icon {
            display: block;
            width: 24px;
            height: 2px;
            background: #fff;
            margin: 5px 0;
            border-radius: 2px;
            transition: background 0.3s ease;
        }

        .site-header.scrolled .toggler-icon {
            background: var(--ink);
        }

        .category-hero {
            position: relative;
            padding: 120px 0 96px;
            background: linear-gradient(135deg, rgba(14, 86, 84, 0.95), rgba(7, 60, 62, 0.98)), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .category-breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.72);
            margin-bottom: 32px;
        }

        .category-breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color 0.25s ease;
        }

        .category-breadcrumb a:hover {
            color: var(--accent);
        }

        .category-breadcrumb span {
            margin: 0 2px;
            opacity: 0.7;
        }

        .category-breadcrumb .current {
            color: var(--accent);
            font-weight: 600;
        }

        .hero-title {
            font-size: 44px;
            font-weight: 700;
            line-height: 1.25;
            margin: 0 0 20px;
            color: #fff;
        }

        .hero-title .highlight {
            color: var(--accent);
        }

        .hero-lead {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.86);
            max-width: 540px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            margin-bottom: 28px;
        }

        .btn-primary-custom,
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 46px;
            padding: 0 28px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            transition: all 0.3s ease;
            text-decoration: none;
        }

        .btn-primary-custom {
            background: var(--accent);
            color: #fff;
            border: 1px solid rgba(228, 146, 74, 0.4);
            box-shadow: 0 6px 18px rgba(228, 146, 74, 0.28);
        }

        .btn-primary-custom:hover {
            background: #D47B36;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(228, 146, 74, 0.36);
        }

        .btn-primary-custom:focus,
        .btn-ghost:focus,
        .btn-cta:focus,
        .btn-header-login:focus {
            outline: 2px solid rgba(228, 146, 74, 0.7);
            outline-offset: 3px;
        }

        .btn-primary-custom:active,
        .btn-ghost:active,
        .btn-cta:active {
            transform: translateY(1px);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.35);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.22);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-2px);
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 34px;
            padding: 0 16px;
            border-radius: 50px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.24);
            font-size: 13px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .hero-visual {
            position: relative;
            max-width: 520px;
            margin-left: auto;
            padding-bottom: 24px;
        }

        .hero-card {
            border-radius: var(--radius-lg);
            padding: 12px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.26);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            box-shadow: 0 20px 50px rgba(7, 60, 62, 0.35);
        }

        .hero-card img {
            display: block;
            width: 100%;
            height: auto;
            min-height: 240px;
            object-fit: cover;
            border-radius: 14px;
        }

        .hero-badge {
            position: absolute;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            padding: 12px 18px;
            border-radius: 16px;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            box-shadow: 0 8px 24px rgba(7, 60, 62, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.6);
            min-width: 120px;
        }

        .hero-badge-top {
            top: -18px;
            right: -8px;
        }

        .hero-badge-bottom {
            bottom: 4px;
            left: -18px;
        }

        .badge-num {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--accent);
            font-family: Inter, "Segoe UI", sans-serif;
        }

        .badge-label {
            font-size: 13px;
            color: var(--muted);
            font-weight: 500;
        }

        .stats-strip {
            position: relative;
            z-index: 2;
            margin-top: -44px;
            padding: 0 0 20px;
        }

        .stats-strip-inner {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(255, 255, 255, 0.7);
        }

        .stats-lead {
            font-size: 20px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.5;
            margin: 0;
        }

        .stats-lead small {
            display: block;
            font-size: 14px;
            font-weight: 400;
            color: var(--muted);
            margin-top: 6px;
        }

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

        .stat-item {
            padding: 8px 4px;
        }

        .stat-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            font-family: Inter, "Segoe UI", sans-serif;
            line-height: 1.2;
            display: block;
        }

        .stat-label {
            font-size: 13px;
            color: var(--muted);
            margin-top: 4px;
            display: block;
        }

        .core-section {
            padding: 88px 0 96px;
        }

        .core-image {
            margin-top: 28px;
            position: relative;
        }

        .core-image img {
            display: block;
            width: 100%;
            height: 240px;
            object-fit: cover;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }

        .core-note {
            margin-top: -20px;
            margin-left: 16px;
            margin-right: 16px;
            position: relative;
            z-index: 2;
            background: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: 14px;
            padding: 14px 18px;
            font-size: 14px;
            color: var(--ink);
            box-shadow: var(--shadow-sm);
        }

        .feature-grid {
            margin-top: 8px;
        }

        .feature-card {
            height: 100%;
            background: #fff;
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid rgba(255, 255, 255, 0.7);
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(228, 146, 74, 0.3);
        }

        .feature-icon {
            display: inline-flex;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(14, 86, 84, 0.12);
            color: var(--primary);
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 16px;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--ink);
            margin-bottom: 8px;
        }

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

        .feature-tip {
            margin-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: var(--accent-soft);
            border-radius: 14px;
            padding: 16px 20px;
            font-size: 15px;
            color: var(--ink);
        }

        .feature-tip .text-link {
            font-weight: 600;
            color: var(--accent);
            white-space: nowrap;
        }

        .feature-tip .text-link:hover {
            color: var(--primary);
        }

        .scenarios-section {
            background: #fff;
            padding: 96px 0;
        }

        .scenarios-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }

        .scenarios-header .section-title {
            margin: 0;
        }

        .scenario-main-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 360px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 32px;
            background: linear-gradient(180deg, rgba(7, 60, 62, 0.1), rgba(7, 60, 62, 0.88)), url('/assets/images/coverpic/cover-3.webp') center center / cover no-repeat;
            color: #fff;
            box-shadow: var(--shadow-sm);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

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

        .scenario-tag {
            display: inline-flex;
            align-items: center;
            height: 28px;
            padding: 0 12px;
            border-radius: 50px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            align-self: flex-start;
            margin-bottom: 16px;
        }

        .scenario-main-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
        }

        .scenario-main-card p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.86);
            margin: 0 0 16px;
        }

        .scenario-main-card a {
            color: var(--accent);
            font-weight: 600;
            font-size: 14px;
        }

        .scenario-list-card {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border);
            margin-bottom: 20px;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }

        .scenario-list-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
            border-color: rgba(228, 146, 74, 0.3);
        }

        .scenario-list-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(14, 86, 84, 0.12);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }

        .scenario-list-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--ink);
            margin: 0 0 8px;
        }

        .scenario-list-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--muted);
            margin: 0;
        }

        .process-section {
            background: var(--primary-dark);
            padding: 96px 0;
            color: #fff;
        }

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

        .process-section .section-desc {
            color: rgba(255, 255, 255, 0.7);
            text-align: center;
            max-width: 640px;
            margin: 0 auto 56px;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .process-step {
            position: relative;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid rgba(255, 255, 255, 0.14);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            transition: background 0.3s ease, border-color 0.3s ease, transform 0.25s ease;
        }

        .process-step:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(228, 146, 74, 0.48);
            transform: translateY(-4px);
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .process-step h3 {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.72);
            margin: 0;
        }

        .faq-section {
            padding: 96px 0;
        }

        .faq-intro p {
            font-size: 15px;
            color: var(--muted);
            margin: 16px 0 24px;
        }

        .faq-intro a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--primary);
        }

        .faq-intro a:hover {
            color: var(--accent);
        }

        .faq-accordion .accordion-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: border-color 0.25s ease;
        }

        .faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: rgba(14, 86, 84, 0.35);
        }

        .faq-accordion .accordion-button {
            background: #fff;
            color: var(--ink);
            font-size: 15px;
            font-weight: 600;
            padding: 20px 48px 20px 20px;
            box-shadow: none;
        }

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

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid rgba(228, 146, 74, 0.6);
            outline-offset: -2px;
        }

        .faq-accordion .accordion-button::after {
            content: "+";
            background-image: none;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: rgba(228, 146, 74, 0.12);
            color: var(--accent);
            font-size: 18px;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: center;
            line-height: 1;
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            transition: background-color 0.25s ease, color 0.25s ease;
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            content: "−";
            background-color: var(--primary);
            color: #fff;
        }

        .faq-accordion .accordion-body {
            font-size: 14px;
            line-height: 1.8;
            color: var(--muted);
            padding: 0 20px 20px;
        }

        .cta-section {
            padding: 96px 0;
            background: linear-gradient(135deg, #E4924A, #D47B36);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 32px;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 46px;
            padding: 0 32px;
            border-radius: 12px;
            background: #072A29;
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border: none;
            transition: all 0.3s ease;
            box-shadow: 0 6px 20px rgba(7, 42, 41, 0.24);
        }

        .btn-cta:hover {
            background: #0E5654;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(7, 42, 41, 0.32);
        }

        .site-footer {
            background: var(--footer-bg);
            color: rgba(255, 255, 255, 0.82);
            padding: 64px 0 0;
        }

        .footer-col {
            margin-bottom: 32px;
        }

        .footer-brand .logo-icon {
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        .footer-brand .logo-text {
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin: 16px 0 0;
            max-width: 320px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            transition: color 0.25s ease, padding-left 0.25s ease;
        }

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

        .footer-links a:focus {
            outline: 2px solid #fff;
            outline-offset: 4px;
            border-radius: 4px;
        }

        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 10px;
        }

        .footer-contact i {
            color: var(--accent);
            margin-right: 8px;
        }

        .footer-qr {
            margin-top: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            border: 1px dashed rgba(255, 255, 255, 0.3);
            border-radius: 12px;
            padding: 10px 14px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(229, 224, 214, 0.14);
            padding: 20px 0;
            margin-top: 16px;
        }

        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom span:last-child {
            opacity: 0.6;
        }

        @media (max-width: 991.98px) {
            .site-header,
            .site-header .navbar {
                height: 64px;
            }

            .site-header .navbar-collapse {
                position: absolute;
                top: 64px;
                left: 12px;
                right: 12px;
                background: #fff;
                border-radius: 16px;
                padding: 16px;
                box-shadow: 0 16px 40px rgba(28, 46, 44, 0.16);
                border: 1px solid var(--border);
                max-height: calc(100vh - 80px);
                overflow-y: auto;
                display: none;
            }

            .site-header .navbar-collapse.show {
                display: block;
            }

            .navbar-nav {
                align-items: stretch;
                gap: 0;
            }

            .navbar-nav .nav-link {
                color: var(--ink) !important;
                font-size: 18px;
                padding: 12px 8px;
                border-bottom: 1px solid var(--border);
            }

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

            .navbar-nav .nav-link.active {
                color: var(--primary) !important;
                font-weight: 700;
            }

            .header-cta {
                margin: 12px 0 0;
            }

            .btn-header-login {
                width: 100%;
                background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
                color: #fff !important;
                height: 44px;
            }

            .hero-title {
                font-size: 32px;
            }

            .hero-lead {
                font-size: 16px;
            }

            .hero-actions {
                gap: 12px;
            }

            .btn-primary-custom,
            .btn-ghost {
                flex: 1 1 100%;
            }

            .hero-visual {
                margin: 48px auto 0;
            }

            .stats-strip {
                margin-top: -24px;
            }

            .stats-strip-inner {
                padding: 24px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
                margin-top: 16px;
            }

            .core-section {
                padding: 64px 0 72px;
            }

            .scenarios-section {
                padding: 64px 0;
            }

            .scenario-main-card {
                min-height: 300px;
            }

            .process-section {
                padding: 64px 0;
            }

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

            .faq-section {
                padding: 64px 0;
            }

            .cta-section {
                padding: 64px 0;
            }

            .cta-section h2 {
                font-size: 28px;
            }

            .footer-bottom .container {
                justify-content: center;
            }
        }

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

            .section-title {
                font-size: 26px;
            }

            .category-hero {
                padding: 100px 0 56px;
            }

            .category-breadcrumb {
                margin-bottom: 20px;
            }

            .hero-title {
                font-size: 28px;
            }

            .hero-lead {
                font-size: 15px;
                margin-bottom: 24px;
            }

            .hero-tags {
                gap: 8px;
            }

            .tag-pill {
                height: 30px;
                padding: 0 12px;
                font-size: 12px;
            }

            .hero-badge {
                min-width: 100px;
                padding: 10px 14px;
            }

            .badge-num {
                font-size: 24px;
            }

            .hero-badge-top {
                top: -14px;
                right: -4px;
            }

            .hero-badge-bottom {
                bottom: 2px;
                left: -6px;
            }

            .stats-strip-inner {
                padding: 20px;
            }

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

            .stat-num {
                font-size: 22px;
            }

            .core-note {
                margin-left: 10px;
                margin-right: 10px;
                font-size: 13px;
                padding: 12px 14px;
            }

            .feature-card {
                padding: 20px;
            }

            .scenarios-header {
                margin-bottom: 28px;
                flex-direction: column;
                align-items: flex-start;
            }

            .scenario-main-card {
                min-height: 260px;
                padding: 24px;
            }

            .scenario-list-card {
                flex-direction: column;
                gap: 14px;
                padding: 20px;
            }

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

            .process-step {
                padding: 24px 20px;
            }

            .faq-accordion .accordion-button {
                padding-right: 44px;
                font-size: 14px;
            }

            .footer-brand p {
                max-width: 100%;
            }

            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: article */
:root {
    --primary: #0e5654;
    --primary-dark: #073c3e;
    --accent: #e4924a;
    --accent-dark: #d47b36;
    --bg: #f7f5f0;
    --card-bg: #ffffff;
    --text-dark: #1c2e2c;
    --text-muted: #5c706e;
    --border: #e5e0d6;
    --footer-bg: #072a29;
    --radius-lg: 20px;
    --radius-md: 16px;
    --radius-sm: 12px;
    --shadow: 0 8px 24px rgba(28, 46, 44, 0.06);
    --shadow-hover: 0 16px 40px rgba(28, 46, 44, 0.12);
    --transition: all 0.25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-dark);
    background-color: var(--bg);
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
a:hover { color: var(--primary); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
ul { list-style: none; }

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    height: 72px;
    background: rgba(255, 255, 255, 0.10);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
    transition: var(--transition);
}
.site-header.scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom-color: var(--border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}
.site-header .navbar {
    padding: 12px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.navbar-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 0;
    margin-right: 0;
    line-height: 1;
}
.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    font-size: 15px;
    font-weight: 800;
    font-family: 'Inter', 'Segoe UI', sans-serif;
    letter-spacing: -0.3px;
    box-shadow: 0 4px 12px rgba(14, 86, 84, 0.3);
}
.logo-text {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    white-space: nowrap;
    letter-spacing: 0.2px;
}
.site-header.scrolled .logo-text { color: var(--text-dark); }
.site-header .navbar-nav { gap: 4px; }
.site-header .nav-link {
    color: rgba(255, 255, 255, 0.9);
    font-size: 15px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    position: relative;
    transition: var(--transition);
}
.site-header .nav-link:hover { color: #fff; }
.site-header .nav-link.active { color: #fff; font-weight: 600; }
.site-header .nav-link.active::after {
    content: '';
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 2px;
    height: 2px;
    border-radius: 2px;
    background: var(--accent);
}
.site-header.scrolled .nav-link { color: var(--text-dark); }
.site-header.scrolled .nav-link:hover { color: var(--primary); }
.site-header.scrolled .nav-link.active { color: var(--primary); }
.header-cta { margin-left: 8px; }
.btn-header-login {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 38px;
    padding: 0 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.6);
    transition: var(--transition);
    white-space: nowrap;
}
.btn-header-login:hover {
    color: var(--primary-dark);
    background: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}
.site-header.scrolled .btn-header-login {
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-color: transparent;
}
.site-header.scrolled .btn-header-login:hover {
    box-shadow: 0 6px 16px rgba(14, 86, 84, 0.25);
    transform: translateY(-1px);
}
.navbar-toggler {
    border: none;
    padding: 4px;
    background: transparent;
}
.navbar-toggler:focus {
    box-shadow: none;
    outline: none;
}
.toggler-icon {
    display: block;
    width: 22px;
    height: 2px;
    background: #fff;
    margin: 5px 0;
    border-radius: 2px;
    transition: var(--transition);
}
.site-header.scrolled .toggler-icon { background: var(--text-dark); }
@media (max-width: 991.98px) {
    .site-header { height: auto; min-height: 72px; }
    .navbar-collapse {
        background: #fff;
        border-radius: var(--radius-md);
        padding: 16px 20px;
        margin-top: 10px;
        box-shadow: var(--shadow);
    }
    .site-header .nav-link { color: var(--text-dark) !important; }
    .site-header .nav-link.active { color: var(--primary) !important; }
    .site-header .nav-link.active::after { display: none; }
    .site-header .nav-link:hover { color: var(--primary) !important; }
    .header-cta {
        margin: 12px 0 0;
        padding-top: 12px;
        border-top: 1px solid var(--border);
    }
    .btn-header-login {
        color: #fff;
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        border-color: transparent;
        width: 100%;
    }
}

.page-hero {
    position: relative;
    background: linear-gradient(135deg, rgba(14, 86, 84, 0.93), rgba(7, 60, 62, 0.96)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    padding: 148px 0 88px;
    color: #fff;
}
.page-hero::after {
    content: '';
    position: absolute;
    top: -60px;
    right: -80px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(228, 146, 74, 0.22), transparent 70%);
    pointer-events: none;
}
.page-hero::before {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -60px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.06), transparent 70%);
    pointer-events: none;
}
.breadcrumb-nav {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 24px;
    gap: 8px;
}
.breadcrumb-nav a {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 400;
}
.breadcrumb-nav a:hover { color: var(--accent); }
.crumb-sep { color: rgba(255, 255, 255, 0.45); font-size: 12px; }
.crumb-current { color: rgba(255, 255, 255, 0.9); font-weight: 400; }
.hero-tag {
    position: relative;
    z-index: 2;
    display: inline-block;
    padding: 6px 16px;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.22);
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}
.page-hero h1 {
    position: relative;
    z-index: 2;
    font-size: 40px;
    font-weight: 700;
    line-height: 1.25;
    color: #fff;
    max-width: 760px;
    margin-bottom: 20px;
    letter-spacing: -0.3px;
}
.hero-meta {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 6px; }
.hero-meta i { font-size: 13px; color: rgba(255, 255, 255, 0.6); }
.meta-divider { color: rgba(255, 255, 255, 0.4); font-size: 12px; }
@media (max-width: 575px) {
    .page-hero { padding: 120px 0 56px; }
    .page-hero h1 { font-size: 28px; }
    .hero-meta { font-size: 13px; flex-direction: column; align-items: flex-start; gap: 6px; }
}

.article-container {
    padding: 40px 24px 72px;
}
.article-wrapper {
    max-width: 780px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 48px 56px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.7);
}
.article-body {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-dark);
    word-break: break-word;
}
.article-body p { margin-bottom: 24px; }
.article-body h2 {
    font-size: 26px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--text-dark);
    margin: 36px 0 18px;
}
.article-body h3 {
    font-size: 22px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--text-dark);
    margin: 32px 0 16px;
}
.article-body h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 28px 0 12px;
}
.article-body ul, .article-body ol {
    margin: 0 0 24px 24px;
    padding: 0;
}
.article-body li { margin-bottom: 8px; line-height: 1.8; }
.article-body img {
    border-radius: var(--radius-md);
    margin: 24px auto;
    display: block;
    max-width: 100%;
    height: auto;
}
.article-body blockquote {
    border-left: 4px solid var(--accent);
    background: rgba(228, 146, 74, 0.10);
    border-radius: 0 12px 12px 0;
    padding: 20px 24px;
    margin: 24px 0;
    color: var(--text-muted);
    font-size: 15px;
    font-style: normal;
}
.article-body blockquote p { margin-bottom: 8px; }
.article-body blockquote p:last-child { margin-bottom: 0; }
.article-body a { color: var(--primary); text-decoration: underline; text-decoration-color: transparent; }
.article-body a:hover { text-decoration-color: var(--primary); }
.article-body code, .article-body pre {
    background: #f1f0ea;
    border-radius: 8px;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
}
.article-body code { padding: 2px 6px; font-size: 14px; }
.article-body pre { padding: 16px 20px; overflow-x: auto; line-height: 1.6; margin-bottom: 24px; }
.article-body hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 32px 0;
}
.article-body table { width: 100%; margin-bottom: 24px; border-collapse: collapse; }
.article-body th, .article-body td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    text-align: left;
}
.article-body th { background: rgba(14, 86, 84, 0.05); font-weight: 600; }
.article-body iframe { max-width: 100%; border-radius: var(--radius-md); margin: 24px 0; }
.article-body .wp-caption, .article-body figure { margin: 24px 0; }
.article-body figure figcaption {
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 8px;
}
.article-empty {
    max-width: 780px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 64px 32px;
    text-align: center;
    box-shadow: var(--shadow);
}
.empty-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: rgba(14, 86, 84, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 24px;
}
.article-empty h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}
.article-empty p {
    color: var(--text-muted);
    margin-bottom: 24px;
}
.btn-primary-custom {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 28px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    transition: var(--transition);
}
.btn-primary-custom:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(14, 86, 84, 0.28);
}
.article-back {
    max-width: 780px;
    margin: 0 auto;
    padding: 32px 8px 0;
}
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
}
.back-link i { font-size: 13px; transition: transform 0.25s ease; }
.back-link:hover { color: var(--accent-dark); }
.back-link:hover i { transform: translateX(-4px); }

.related-section {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 8px 72px;
}
.section-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 28px;
    position: relative;
    padding-left: 16px;
}
.section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 4px;
    border-radius: 4px;
    background: var(--accent);
}
.related-card {
    display: flex;
    align-items: center;
    gap: 18px;
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 18px;
    border: 1px solid var(--border);
    height: 100%;
    transition: var(--transition);
}
.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(228, 146, 74, 0.3);
}
.related-card .thumb {
    width: 110px;
    height: 80px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
    background: var(--border);
}
.related-info { flex: 1; min-width: 0; }
.related-info h4 {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 8px;
    color: var(--text-dark);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.related-info h4 a { color: var(--text-dark); transition: var(--transition); }
.related-info h4 a:hover { color: var(--primary); }
.related-meta {
    font-size: 13px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}
.related-meta i { font-size: 12px; }
.tag-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 50px;
    background: rgba(14, 86, 84, 0.10);
    color: var(--primary);
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 8px;
}

.article-cta-section {
    padding: 0 24px 80px;
}
.article-cta {
    max-width: 1160px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: var(--radius-lg);
    padding: 56px 48px;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.article-cta::before {
    content: '';
    position: absolute;
    top: -40px;
    left: -40px;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}   
.article-cta::after {
    content: '';
    position: absolute;
    bottom: -60px;
    right: -30px;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: rgba(7, 42, 41, 0.10);
}
.article-cta h2 {
    position: relative;
    z-index: 2;
    font-size: 30px;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.3;
}
.article-cta p {
    position: relative;
    z-index: 2;
    font-size: 16px;
    opacity: 0.92;
    margin-bottom: 28px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}
.btn-cta-solid {
    position: relative;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 32px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    background: #072a29;
    border: none;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(7, 42, 41, 0.25);
}
.btn-cta-solid:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(7, 42, 41, 0.35);
}
@media (max-width: 575px) {
    .article-cta { padding: 40px 24px; }
    .article-cta h2 { font-size: 24px; }
}

.site-footer {
    background: var(--footer-bg);
    color: rgba(255, 255, 255, 0.75);
    padding: 64px 0 0;
}
.site-footer .footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    line-height: 1.8;
    margin-top: 16px;
    margin-bottom: 0;
}
.site-footer .logo-icon {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    box-shadow: none;
}
.site-footer .logo-text { color: #fff; }
.footer-title {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}
.footer-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 28px;
    height: 2px;
    border-radius: 2px;
    background: var(--accent);
}
.footer-links li { margin-bottom: 12px; }
.footer-links a {
    color: rgba(255, 255, 255, 0.65);
    font-size: 14px;
    transition: var(--transition);
}
.footer-links a:hover { color: var(--accent); }
.footer-contact p {
    font-size: 14px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
}
.footer-contact i { color: var(--accent); width: 16px; text-align: center; }
.footer-qr {
    width: 120px;
    height: 120px;
    border: 1px dashed rgba(255, 255, 255, 0.25);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 8px;
    background: rgba(255, 255, 255, 0.04);
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 48px;
    padding: 20px 0;
}
.footer-bottom .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
}
.footer-bottom a { color: rgba(255, 255, 255, 0.5); }
.footer-bottom a:hover { color: var(--accent); }
@media (max-width: 991.98px) {
    .article-wrapper { padding: 36px 28px; }
}
@media (max-width: 767.98px) {
    .article-wrapper { padding: 28px 20px; }
}
@media (max-width: 575.98px) {
    .article-container { padding: 24px 16px 48px; }
    .article-wrapper { padding: 24px 18px; border-radius: var(--radius-md); }
    .page-hero h1 { font-size: 26px; }
    .related-section { padding-bottom: 48px; }
    .section-title { font-size: 22px; }
    .related-card { flex-direction: column; align-items: flex-start; }
    .related-card .thumb { width: 100%; height: 140px; }
    .footer-bottom .container { flex-direction: column; text-align: center; }
}

/* roulang page: category2 */
:root {
            --primary: #0E5654;
            --primary-dark: #073C3E;
            --accent: #E4924A;
            --accent-dark: #D47B36;
            --bg-soft: #F7F5F0;
            --card-white: #FFFFFF;
            --text-dark: #1C2E2C;
            --text-secondary: #5C706E;
            --border: #E5E0D6;
            --footer-bg: #072A29;
            --radius-lg: 20px;
            --radius-std: 18px;
            --radius-sm: 12px;
            --radius-btn: 50px;
            --shadow-default: 0 8px 24px rgba(28, 46, 44, 0.06);
            --shadow-hover: 0 16px 40px rgba(28, 46, 44, 0.12);
            --transition: 0.25s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", -apple-system, "Segoe UI", sans-serif;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-dark);
            background: var(--bg-soft);
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: var(--primary);
            transition: color .2s ease;
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            display: inline-block;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section {
            padding: 96px 0;
        }
        .section-top-title {
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 1px;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 10px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-dark);
            margin: 0 0 12px;
        }
        .section-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.8;
            margin: 0;
        }
        .btn-hth-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, #0E5654, #073C3E);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: none;
        }
        .btn-hth-primary:hover {
            color: #fff;
            background: linear-gradient(135deg, #0c605e, #062f31);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(14, 86, 84, 0.25);
        }
        .btn-hth-primary:focus-visible {
            outline: 3px solid rgba(228, 146, 74, 0.5);
            outline-offset: 2px;
        }
        .btn-hth-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 32px;
            border-radius: var(--radius-btn);
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            font-weight: 500;
            font-size: 15px;
            backdrop-filter: blur(6px);
            transition: all var(--transition);
        }
        .btn-hth-ghost:hover {
            background: rgba(255, 255, 255, 0.22);
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-hth-ghost:focus-visible {
            outline: 3px solid rgba(255, 255, 255, 0.5);
            outline-offset: 2px;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 72px;
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.18);
            transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .site-header .navbar {
            height: 72px;
            padding: 0;
            flex-wrap: nowrap;
        }
        .site-header .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
        }
        .site-header .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, #0E5654, #073C3E);
            color: #fff;
            font-weight: 800;
            font-size: 13px;
            letter-spacing: 0;
            flex-shrink: 0;
        }
        .site-header.scrolled .logo-icon {
            background: linear-gradient(135deg, #0E5654, #073C3E);
        }
        .site-header .logo-text {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            white-space: nowrap;
            transition: color .3s ease;
        }
        .site-header.scrolled .logo-text {
            color: var(--text-dark);
        }
        .site-header .navbar-nav {
            margin-left: auto;
            margin-right: auto;
            align-items: center;
        }
        .site-header .nav-link {
            color: rgba(255, 255, 255, 0.92);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 18px !important;
            position: relative;
            border-radius: 0;
            transition: color .25s ease;
        }
        .site-header.scrolled .nav-link {
            color: var(--text-dark);
        }
        .site-header .nav-link:hover {
            color: var(--accent);
        }
        .site-header .nav-link.active {
            font-weight: 600;
            color: #fff;
        }
        .site-header.scrolled .nav-link.active {
            color: var(--primary);
        }
        .site-header .nav-link.active::after {
            content: '';
            position: absolute;
            left: 18px;
            right: 18px;
            bottom: 2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .site-header .header-cta {
            flex-shrink: 0;
            padding-left: 12px;
        }
        .btn-header-login {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 38px;
            padding: 0 22px;
            border-radius: var(--radius-btn);
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .site-header.scrolled .btn-header-login {
            background: linear-gradient(135deg, #0E5654, #073C3E);
            color: #fff;
        }
        .btn-header-login:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(14, 86, 84, 0.2);
        }
        .site-header .navbar-toggler {
            border: none;
            padding: 6px 8px;
            background: transparent;
        }
        .site-header .toggler-icon {
            display: block;
            width: 24px;
            height: 2px;
            background: #fff;
            margin: 5px 0;
            border-radius: 2px;
            transition: background .3s ease;
        }
        .site-header.scrolled .toggler-icon {
            background: var(--text-dark);
        }
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, #0E5654 0%, #073C3E 100%);
            padding: 160px 0 88px;
            color: #fff;
            overflow: hidden;
        }
        .page-hero .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: luminosity;
            pointer-events: none;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -80px;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(228, 146, 74, 0.18), transparent 60%);
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -120px;
            left: -120px;
            width: 440px;
            height: 440px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08), transparent 60%);
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 20px;
        }
        .breadcrumb-wrap a {
            color: rgba(255, 255, 255, 0.65);
        }
        .breadcrumb-wrap a:hover {
            color: var(--accent);
        }
        .breadcrumb-wrap .separator {
            opacity: 0.5;
        }
        .breadcrumb-wrap .current {
            color: rgba(255, 255, 255, 0.95);
            font-weight: 500;
        }
        .page-hero h1 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.25;
            margin: 0 0 18px;
            max-width: 620px;
        }
        .page-hero h1 .highlight {
            color: var(--accent);
        }
        .page-hero .hero-sub {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 520px;
            line-height: 1.8;
            margin: 0 0 32px;
        }
        .page-hero .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-security-card {
            position: relative;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.22);
            border-radius: var(--radius-lg);
            padding: 28px 26px;
            color: #fff;
            max-width: 360px;
            margin-left: auto;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
        }
        .hero-security-card .card-head {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            font-size: 16px;
            margin-bottom: 20px;
        }
        .hero-security-card .card-head i {
            font-size: 22px;
            color: var(--accent);
        }
        .hero-security-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .hero-security-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            font-size: 14px;
        }
        .hero-security-list li:last-child {
            border-bottom: none;
        }
        .hero-security-list .status-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #63d68e;
            flex-shrink: 0;
            box-shadow: 0 0 8px rgba(99, 214, 142, 0.6);
        }
        .hero-security-list .status-label {
            color: rgba(255, 255, 255, 0.9);
        }
        .hero-security-list .status-value {
            margin-left: auto;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.95);
        }
        .hero-badges {
            position: absolute;
            bottom: -16px;
            right: 24px;
            background: #fff;
            border-radius: 16px;
            padding: 12px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
            box-shadow: var(--shadow-hover);
            color: var(--text-dark);
        }
        .hero-badges .badge-num {
            font-size: 26px;
            font-weight: 800;
            color: var(--accent);
            font-family: Inter, "Segoe UI", sans-serif;
        }
        .hero-badges .badge-label {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.3;
        }
        .capabilities {
            background: var(--bg-soft);
        }
        .capabilities .intro-block {
            padding-right: 20px;
        }
        .capability-card {
            background: var(--card-white);
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            border: 1px solid rgba(255, 255, 255, 0.7);
            box-shadow: var(--shadow-default);
            transition: all var(--transition);
            height: 100%;
            position: relative;
        }
        .capability-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(228, 146, 74, 0.3);
        }
        .capability-card .icon-wrap {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(14, 86, 84, 0.12);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 20px;
        }
        .capability-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 0 0 10px;
            color: var(--text-dark);
        }
        .capability-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        .mechanism {
            background: #fff;
        }
        .mechanism .image-col {
            position: relative;
        }
        .mechanism .image-col img {
            border-radius: var(--radius-lg);
            width: 100%;
            height: 460px;
            object-fit: cover;
            box-shadow: 0 20px 50px rgba(28, 46, 44, 0.12);
        }
        .mechanism .info-bar {
            position: absolute;
            left: 20px;
            bottom: 20px;
            right: 20px;
            background: rgba(255, 255, 255, 0.78);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.5);
            border-radius: 14px;
            padding: 14px 18px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .mechanism .info-bar i {
            color: var(--accent);
            font-size: 18px;
        }
        .mechanism .content-col {
            padding-left: 40px;
        }
        .mechanism .feature-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .mechanism .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 24px;
        }
        .mechanism .feature-list .f-icon {
            width: 42px;
            height: 42px;
            border-radius: 14px;
            background: rgba(14, 86, 84, 0.10);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .mechanism .feature-list h4 {
            font-size: 17px;
            font-weight: 600;
            margin: 0 0 4px;
            color: var(--text-dark);
        }
        .mechanism .feature-list p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        .mechanism .notice-bar {
            background: rgba(228, 146, 74, 0.12);
            border-radius: 14px;
            padding: 16px 20px;
            margin-top: 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .mechanism .notice-bar span {
            font-size: 14px;
            color: var(--text-dark);
            font-weight: 500;
        }
        .mechanism .notice-bar a {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            border-bottom: 1px solid transparent;
            transition: border-color .2s ease, color .2s ease;
        }
        .mechanism .notice-bar a:hover {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
        .scenarios {
            background: var(--bg-soft);
        }
        .scenario-card {
            background: #fff;
            border-radius: var(--radius-std);
            padding: 28px 26px;
            border: 1px solid rgba(255, 255, 255, 0.7);
            box-shadow: var(--shadow-default);
            transition: all var(--transition);
            height: 100%;
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }
        .scenario-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(228, 146, 74, 0.3);
        }
        .scenario-card .s-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(14, 86, 84, 0.10);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }
        .scenario-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 0 0 6px;
            color: var(--text-dark);
        }
        .scenario-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        .process {
            background: #fff;
        }
        .process-step {
            display: flex;
            gap: 22px;
            padding: 28px 24px;
            border-radius: var(--radius-std);
            background: var(--bg-soft);
            border: 1px solid rgba(255, 255, 255, 0.7);
            transition: all var(--transition);
            height: 100%;
        }
        .process-step:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(228, 146, 74, 0.3);
            transform: translateY(-3px);
        }
        .process-step .step-num {
            font-size: 38px;
            font-weight: 800;
            font-family: Inter, "Segoe UI", sans-serif;
            color: var(--accent);
            line-height: 1;
            flex-shrink: 0;
            width: 52px;
        }
        .process-step h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 0 0 8px;
            color: var(--text-dark);
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        .data-section {
            background: var(--primary-dark);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .data-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(228, 146, 74, 0.10), transparent 60%);
            pointer-events: none;
        }
        .data-section .section-title {
            color: #fff;
        }
        .data-section .section-sub {
            color: rgba(255, 255, 255, 0.7);
        }
        .data-card {
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            height: 100%;
            position: relative;
            transition: all var(--transition);
        }
        .data-card:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-3px);
        }
        .data-card .data-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--accent);
            font-family: Inter, "Segoe UI", sans-serif;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .data-card .data-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.72);
        }
        .data-card .data-dot {
            position: absolute;
            top: 20px;
            right: 20px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: rgba(228, 146, 74, 0.6);
        }
        .faq-section {
            background: var(--bg-soft);
        }
        .faq-section .faq-intro {
            padding-right: 24px;
        }
        .faq-section .faq-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 15px;
            color: var(--primary);
            margin-top: 20px;
            border-bottom: 1px solid transparent;
            transition: all .25s ease;
        }
        .faq-section .faq-link:hover {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
        .accordion-item {
            background: #fff;
            border: 1px solid rgba(255, 255, 255, 0.7) !important;
            border-radius: 16px !important;
            margin-bottom: 14px;
            box-shadow: var(--shadow-default);
            overflow: hidden;
            transition: all var(--transition);
        }
        .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: rgba(228, 146, 74, 0.4) !important;
            box-shadow: 0 12px 32px rgba(28, 46, 44, 0.08);
        }
        .accordion-button {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            background: #fff;
            padding: 20px 24px;
            box-shadow: none;
            border-radius: 16px !important;
        }
        .accordion-button::after {
            background-image: none;
            content: '\f067';
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 14px;
            color: var(--accent);
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(228, 146, 74, 0.12);
            border-radius: 50%;
            transition: transform .25s ease;
        }
        .accordion-button:not(.collapsed)::after {
            content: '\f068';
            transform: rotate(0deg);
            color: var(--accent);
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }
        .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: #fff;
        }
        .accordion-body {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            padding: 0 24px 22px;
        }
        .final-cta {
            background: linear-gradient(135deg, #E4924A, #D47B36);
            padding: 88px 0;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .final-cta::before {
            content: '';
            position: absolute;
            top: -80px;
            left: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.12);
            pointer-events: none;
        }
        .final-cta h2 {
            font-size: 34px;
            font-weight: 700;
            margin: 0 0 14px;
            color: #fff;
        }
        .final-cta p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            max-width: 580px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .final-cta .btn-cta-dark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 44px;
            border-radius: var(--radius-btn);
            background: #072A29;
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
        }
        .final-cta .btn-cta-dark:hover {
            background: #0E3A38;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
        }
        .final-cta .btn-cta-dark:focus-visible {
            outline: 3px solid rgba(255, 255, 255, 0.5);
            outline-offset: 2px;
        }
        .site-footer {
            background: var(--footer-bg);
            color: rgba(255, 255, 255, 0.8);
            padding-top: 64px;
        }
        .site-footer .footer-brand {
            margin-bottom: 16px;
        }
        .site-footer .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, #0E5654, #073C3E);
            color: #fff;
            font-weight: 800;
            font-size: 13px;
            flex-shrink: 0;
        }
        .site-footer .logo-text {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            white-space: nowrap;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            margin: 14px 0 0;
            max-width: 260px;
        }
        .site-footer .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 18px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            transition: all .2s ease;
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .site-footer .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            margin: 0 0 8px;
        }
        .site-footer .footer-contact i {
            margin-right: 8px;
            color: var(--accent);
            font-size: 13px;
        }
        .site-footer .footer-qr {
            margin-top: 14px;
            display: inline-block;
            background: rgba(255, 255, 255, 0.08);
            border: 1px dashed rgba(255, 255, 255, 0.2);
            border-radius: 10px;
            padding: 10px 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom {
            margin-top: 50px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 20px 0;
        }
        .site-footer .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .site-footer .footer-bottom span {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        @media (max-width: 991px) {
            .section {
                padding: 64px 0;
            }
            .site-header .navbar-collapse {
                background: #fff;
                border-radius: 16px;
                padding: 20px 24px;
                box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
                margin-top: 8px;
                position: absolute;
                top: 72px;
                left: 16px;
                right: 16px;
                z-index: 1001;
            }
            .site-header .navbar-nav {
                align-items: flex-start;
            }
            .site-header .nav-link {
                color: var(--text-dark) !important;
                font-size: 18px;
                padding: 12px 0 !important;
                display: block;
                width: 100%;
            }
            .site-header .nav-link.active::after {
                display: none;
            }
            .site-header .nav-link.active {
                color: var(--primary);
                font-weight: 700;
            }
            .site-header .header-cta {
                padding: 16px 0 0;
                border-top: 1px solid var(--border);
                margin-top: 12px;
                width: 100%;
            }
            .btn-header-login {
                width: 100%;
                background: linear-gradient(135deg, #0E5654, #073C3E);
                color: #fff;
                height: 44px;
                font-size: 16px;
            }
            .page-hero {
                padding: 140px 0 70px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .hero-security-card {
                margin: 40px 0 0;
                max-width: 100%;
            }
            .mechanism .content-col {
                padding-left: 0;
                margin-top: 36px;
            }
            .mechanism .image-col img {
                height: 340px;
            }
        }
        @media (max-width: 767px) {
            .page-hero {
                padding: 120px 0 56px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero .hero-sub {
                font-size: 15px;
            }
            .page-hero .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .page-hero .hero-actions .btn-hth-primary,
            .page-hero .hero-actions .btn-hth-ghost {
                width: 100%;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 27px;
            }
            .mechanism .image-col img {
                height: 260px;
            }
            .mechanism .info-bar {
                font-size: 13px;
            }
            .process-step {
                padding: 22px 18px;
            }
            .data-section .data-card {
                padding: 24px 20px;
            }
            .final-cta {
                padding: 64px 0;
            }
            .final-cta h2 {
                font-size: 27px;
            }
            .final-cta .btn-cta-dark {
                width: 100%;
            }
            .site-footer .footer-bottom .container {
                flex-direction: column;
                justify-content: center;
                text-align: center;
            }
        }
        @media (max-width: 575px) {
            .capabilities .intro-block {
                padding-right: 0;
            }
            .capability-card {
                padding: 24px 20px;
            }
            .scenario-card {
                padding: 22px 18px;
            }
            .hero-security-card {
                padding: 22px 18px;
            }
            .hero-badges {
                right: 12px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0E5654;
            --primary-dark: #073C3E;
            --accent: #E4924A;
            --accent-deep: #D47B36;
            --bg: #F7F5F0;
            --card: #FFFFFF;
            --text: #1C2E2C;
            --text-sub: #5C706E;
            --border: #E5E0D6;
            --radius-lg: 20px;
            --radius-md: 18px;
            --radius-sm: 12px;
            --shadow: 0 8px 24px rgba(28, 46, 44, .06);
            --shadow-hover: 0 16px 40px rgba(28, 46, 44, .12);
            --transition: .25s ease;
            --font-main: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', sans-serif;
            --font-num: 'Inter', 'Segoe UI', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            font-size: 15px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .25s ease, opacity .25s ease;
        }

        a:hover {
            color: var(--accent-deep);
        }

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: 72px;
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, .1);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, .18);
            transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(0, 0, 0, .06);
        }

        .navbar {
            padding: 0;
            flex-wrap: nowrap;
        }

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

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 800;
            font-size: 13px;
            letter-spacing: .5px;
            font-family: var(--font-num);
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            white-space: nowrap;
            transition: color .3s ease;
        }

        .site-header.scrolled .logo-text {
            color: var(--text);
        }

        .navbar-toggler {
            border: none;
            padding: 8px 10px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: transparent;
        }

        .toggler-icon {
            display: block;
            width: 24px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: background .3s ease;
        }

        .site-header.scrolled .toggler-icon {
            background: var(--text);
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(228, 146, 74, .4);
        }

        .navbar-nav {
            gap: 6px;
            align-items: center;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, .9) !important;
            padding: 8px 16px !important;
            border-radius: 8px;
            position: relative;
            transition: color .25s ease, background .25s ease;
        }

        .site-header.scrolled .nav-link {
            color: var(--text) !important;
        }

        .nav-link:hover,
        .nav-link.active {
            color: #fff !important;
            background: rgba(255, 255, 255, .12);
        }

        .site-header.scrolled .nav-link:hover,
        .site-header.scrolled .nav-link.active {
            color: var(--primary) !important;
            background: rgba(14, 86, 84, .08);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
        }

        .header-cta {
            margin-left: 12px;
        }

        .btn-header-login {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 38px;
            padding: 0 22px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            background: #fff;
            border: 1px solid rgba(255, 255, 255, .6);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .site-header.scrolled .btn-header-login {
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-color: transparent;
        }

        .btn-header-login:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, .12);
            color: var(--primary);
        }

        .site-header.scrolled .btn-header-login:hover {
            color: #fff;
            box-shadow: 0 8px 20px rgba(14, 86, 84, .25);
        }

        .btn-header-login:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(228, 146, 74, .5);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 168px 0 96px;
            background: linear-gradient(135deg, #0E5654 0%, #073C3E 100%);
            color: #fff;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: .1;
            z-index: 0;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            width: 480px;
            height: 480px;
            border-radius: 50%;
            background: rgba(228, 146, 74, .18);
            filter: blur(100px);
            top: -120px;
            right: -80px;
            z-index: 0;
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 28px;
            padding: 0;
            list-style: none;
        }

        .breadcrumb-custom a {
            color: rgba(255, 255, 255, .8);
            transition: color .2s;
        }

        .breadcrumb-custom a:hover {
            color: var(--accent);
        }

        .breadcrumb-custom .sep {
            color: rgba(255, 255, 255, .4);
        }

        .breadcrumb-custom .current {
            color: rgba(255, 255, 255, .95);
        }

        .hero-title {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            color: #fff;
        }

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

        .hero-subtitle {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .85);
            max-width: 540px;
            margin-bottom: 36px;
        }

        .hero-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 12px;
            margin-bottom: 40px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
        }

        .btn:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(228, 146, 74, .5);
        }

        .btn-accent {
            background: linear-gradient(135deg, #E4924A, #D47B36);
            color: #fff;
            box-shadow: 0 6px 18px rgba(228, 146, 74, .35);
        }

        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(228, 146, 74, .42);
            color: #fff;
        }

        .btn-ghost {
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .35);
            color: #fff;
            backdrop-filter: blur(4px);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, .2);
            border-color: rgba(255, 255, 255, .6);
            color: #fff;
            transform: translateY(-2px);
        }

        .hero-card {
            position: relative;
            border-radius: 20px;
            padding: 14px;
            background: rgba(255, 255, 255, .12);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, .25);
            box-shadow: 0 18px 48px rgba(0, 0, 0, .18);
        }

        .hero-image {
            border-radius: 14px;
            width: 100%;
            min-height: 300px;
            object-fit: cover;
            background: var(--primary-dark);
        }

        .hero-badge {
            position: absolute;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 18px;
            border-radius: 16px;
            background: rgba(255, 255, 255, .88);
            backdrop-filter: blur(8px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, .12);
            z-index: 2;
        }

        .hero-badge.top-right {
            top: -18px;
            right: -12px;
        }

        .hero-badge.bottom-left {
            bottom: -18px;
            left: -12px;
        }

        .badge-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(14, 86, 84, .1);
            color: var(--primary);
            font-size: 16px;
        }

        .badge-value {
            font-family: var(--font-num);
            font-size: 28px;
            font-weight: 800;
            line-height: 1;
            color: var(--text);
        }

        .badge-value .unit {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-left: 2px;
        }

        .badge-label {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.3;
            white-space: nowrap;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 50px;
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .2);
            color: rgba(255, 255, 255, .9);
            font-size: 13px;
            line-height: 1.4;
        }

        .hero-tag i {
            color: var(--accent);
            font-size: 12px;
        }

        /* ===== Section Common ===== */
        .section {
            padding: 96px 0;
        }

        .section-head {
            margin-bottom: 52px;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(14, 86, 84, .08);
            padding: 5px 14px;
            border-radius: 50px;
            letter-spacing: .5px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 14px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 560px;
            line-height: 1.7;
        }

        /* ===== Steps ===== */
        .steps-section {
            background: var(--bg);
        }

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

        .step-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, .7);
            box-shadow: var(--shadow);
            padding: 30px 28px;
            position: relative;
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(228, 146, 74, .3);
        }

        .step-num {
            font-family: var(--font-num);
            font-size: 17px;
            font-weight: 800;
            color: var(--accent-deep);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(228, 146, 74, .12);
            margin-bottom: 18px;
        }

        .step-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .step-desc {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Scenarios ===== */
        .scenarios-section {
            background: var(--card);
        }

        .scenario-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            height: 100%;
            border: 1px solid var(--border);
        }

        .scenario-image {
            width: 100%;
            height: 360px;
            object-fit: cover;
        }

        .scenario-image-wrap {
            position: relative;
        }

        .scenario-info {
            position: absolute;
            left: 20px;
            right: 20px;
            bottom: 20px;
            background: rgba(255, 255, 255, .88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, .7);
            border-radius: 14px;
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .scenario-info i {
            color: var(--accent-deep);
            font-size: 18px;
        }

        .scenario-info p {
            margin: 0;
            font-size: 14px;
            color: var(--text);
            line-height: 1.5;
        }

        .scenario-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
            margin-top: 28px;
        }

        .scenario-item {
            background: var(--bg);
            border-radius: 16px;
            padding: 22px 20px;
            border: 1px solid transparent;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .scenario-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(228, 146, 74, .3);
        }

        .scenario-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 14px;
            background: rgba(14, 86, 84, .1);
            color: var(--primary);
            font-size: 17px;
            margin-bottom: 14px;
        }

        .scenario-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }

        .scenario-item p {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-sub);
            margin: 0;
        }

        .notice-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 36px;
            background: rgba(228, 146, 74, .1);
            border-radius: 14px;
            padding: 18px 24px;
            border-left: 4px solid var(--accent);
        }

        .notice-bar p {
            margin: 0;
            font-size: 15px;
            color: var(--text);
        }

        .notice-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            white-space: nowrap;
            transition: color .25s ease, transform .25s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .notice-link:hover {
            color: var(--accent-deep);
        }

        .notice-link i {
            font-size: 12px;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: #073C3E;
            color: #fff;
            padding: 84px 0;
        }

        .stats-lead {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 12px;
            color: #fff;
        }

        .stats-lead .accent {
            color: var(--accent);
        }

        .stats-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, .7);
            line-height: 1.7;
            margin: 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: 1.1fr .9fr 1fr 1.1fr;
            gap: 18px;
        }

        .stat-item {
            background: rgba(255, 255, 255, .08);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, .16);
            border-radius: 20px;
            padding: 26px 24px;
            position: relative;
            transition: transform .25s ease, background .25s ease;
        }

        .stat-item:hover {
            transform: translateY(-4px);
            background: rgba(255, 255, 255, .12);
        }

        .stat-item::after {
            content: '';
            position: absolute;
            right: 14px;
            bottom: 14px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            opacity: .8;
        }

        .stat-value {
            font-family: var(--font-num);
            font-size: 38px;
            font-weight: 800;
            line-height: 1.1;
            color: var(--accent);
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, .75);
            line-height: 1.5;
        }

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

        .faq-side {
            position: sticky;
            top: 100px;
        }

        .faq-side .section-title {
            font-size: 32px;
        }

        .faq-help {
            margin-top: 28px;
            background: var(--card);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow);
            border: 1px solid rgba(255, 255, 255, .7);
        }

        .faq-help p {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 16px;
            line-height: 1.7;
        }

        .faq-help .btn {
            height: 42px;
            padding: 0 20px;
            font-size: 14px;
        }

        .accordion {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .accordion-item {
            background: var(--card);
            border: 1px solid rgba(255, 255, 255, .7);
            border-radius: 16px !important;
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: box-shadow var(--transition), border-color var(--transition);
        }

        .accordion-item:hover {
            border-color: rgba(228, 146, 74, .35);
        }

        .accordion-item.active {
            border-color: rgba(14, 86, 84, .3);
            box-shadow: var(--shadow-hover);
        }

        .accordion-button {
            background: var(--card);
            color: var(--text);
            font-size: 15px;
            font-weight: 600;
            padding: 20px 22px;
            border: none;
            box-shadow: none !important;
            border-radius: 16px !important;
            line-height: 1.6;
            position: relative;
        }

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

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

        .accordion-button .faq-toggle {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(14, 86, 84, .08);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: transform .3s ease, background .3s ease, color .3s ease;
        }

        .accordion-button:not(.collapsed) .faq-toggle {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .accordion-collapse {
            border: none;
        }

        .accordion-body {
            padding: 0 22px 22px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
            background: var(--card);
        }

        /* ===== CTA ===== */
        .final-cta {
            padding: 0;
            background: linear-gradient(135deg, #E4924A, #D47B36);
        }

        .cta-inner {
            text-align: center;
            padding: 96px 0;
            color: #fff;
        }

        .cta-title {
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .cta-subtitle {
            font-size: 17px;
            color: rgba(255, 255, 255, .92);
            max-width: 560px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }

        .btn-dark {
            background: #072A29;
            color: #fff;
            height: 50px;
            padding: 0 34px;
            font-size: 15px;
            border-radius: 12px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, .18);
        }

        .btn-dark:hover {
            background: #0E3B3A;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, .22);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #072A29;
            color: rgba(255, 255, 255, .8);
            padding-top: 72px;
            font-size: 14px;
        }

        .footer-col {
            margin-bottom: 40px;
        }

        .footer-brand .logo-icon {
            margin-bottom: 16px;
        }

        .footer-brand .logo-text {
            font-size: 18px;
            color: #fff;
        }

        .footer-brand p {
            margin-top: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            max-width: 280px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: .5px;
        }

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

        .footer-links a {
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
            transition: color .25s ease, padding-left .25s ease;
        }

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

        .footer-contact p {
            margin-bottom: 10px;
            color: rgba(255, 255, 255, .75);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact i {
            color: var(--accent);
            width: 16px;
        }

        .footer-qr {
            margin-top: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 16px;
            border-radius: 12px;
            background: rgba(255, 255, 255, .08);
            border: 1px dashed rgba(255, 255, 255, .25);
            color: rgba(255, 255, 255, .7);
            font-size: 13px;
            gap: 8px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding: 22px 0;
            margin-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, .5);
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: #fff;
                border-radius: 16px;
                box-shadow: 0 16px 40px rgba(0, 0, 0, .1);
                padding: 16px 20px;
                margin-top: 12px;
                border: 1px solid var(--border);
            }

            .nav-link {
                color: var(--text) !important;
                font-size: 18px;
                line-height: 48px;
                padding: 0 12px !important;
                border-radius: 8px;
            }

            .nav-link.active {
                color: var(--primary) !important;
                background: rgba(14, 86, 84, .08);
            }

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

            .site-header .btn-header-login {
                color: #fff;
                background: linear-gradient(135deg, var(--primary), var(--primary-dark));
                margin-top: 12px;
                width: 100%;
            }

            .navbar-nav {
                gap: 4px;
                margin-bottom: 8px;
            }

            .header-cta {
                margin-left: 0;
            }

            .hero-title {
                font-size: 36px;
            }

            .section {
                padding: 72px 0;
            }

            .section-title {
                font-size: 30px;
            }

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

            .faq-side {
                position: static;
                margin-bottom: 32px;
            }

            .cta-title {
                font-size: 32px;
            }
        }

        @media (max-width: 767.98px) {
            .page-hero {
                padding: 140px 0 72px;
            }

            .hero-title {
                font-size: 30px;
            }

            .hero-subtitle {
                font-size: 16px;
            }

            .hero-cta {
                flex-direction: column;
                gap: 12px;
            }

            .hero-cta .btn {
                width: 100%;
            }

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

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

            .scenario-image {
                height: 260px;
            }

            .scenario-info {
                position: relative;
                left: auto;
                right: auto;
                bottom: auto;
                margin-top: -14px;
                border-radius: 0 0 14px 14px;
            }

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

            .cta-inner {
                padding: 72px 0;
            }

            .cta-title {
                font-size: 28px;
            }

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

        @media (max-width: 575.98px) {
            .hero-badge {
                padding: 10px 14px;
            }

            .hero-badge.top-right {
                right: 6px;
                top: -14px;
            }

            .hero-badge.bottom-left {
                left: 6px;
                bottom: -14px;
            }

            .badge-value {
                font-size: 22px;
            }

            .badge-label {
                font-size: 12px;
            }

            .hero-tag {
                font-size: 12px;
                padding: 5px 12px;
            }

            .section-title {
                font-size: 26px;
            }
        }