/* roulang page: index */
:root {
            --primary: #2563EB;
            --primary-hover: #1D4ED8;
            --deep-blue: #1E3A5F;
            --teal: #0FA3A3;
            --bg: #F6F9FC;
            --card-bg: #FFFFFF;
            --text-main: #1E293B;
            --text-secondary: #475569;
            --text-muted: #94A3B8;
            --border: #E6EDF4;
            --radius-card: 14px;
            --radius-btn: 8px;
            --shadow: 0 4px 20px rgba(30,58,95,0.08);
            --shadow-hover: 0 8px 30px rgba(30,58,95,0.14);
            --container: 1200px;
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

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

        @media (max-width: 1023px) {
            .container {
                padding: 0 24px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            height: 64px;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo-brand {
            font-size: 20px;
            font-weight: 700;
            color: var(--deep-blue);
            letter-spacing: 1px;
            white-space: nowrap;
        }

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

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-menu .nav-item {
            padding: 12px 20px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-menu .nav-item:hover {
            background: #EFF6FF;
            color: var(--primary);
        }

        .nav-menu .nav-item.active {
            background: #EFF6FF;
            color: var(--primary);
            font-weight: 600;
            box-shadow: inset 0 -3px 0 var(--primary);
            border-radius: 8px 8px 0 0;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 46px;
            padding: 0 28px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            border: none;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
        }

        .btn-primary:active {
            transform: translateY(2px);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(37, 99, 235, 0.25);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 46px;
            padding: 0 28px;
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: #EFF6FF;
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: translateY(2px);
        }

        .nav-cta {
            margin-left: 12px;
            height: 40px;
            padding: 0 22px;
            font-size: 14px;
        }

        .nav-toggle {
            display: none;
            background: none;
            cursor: pointer;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border);
            justify-content: center;
            align-items: center;
            font-size: 18px;
            color: var(--deep-blue);
        }

        /* Mobile drawer */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 999;
            background: #fff;
            padding: 24px 24px 40px;
            flex-direction: column;
            justify-content: flex-start;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            overflow-y: auto;
        }

        .mobile-drawer.open {
            display: flex;
        }

        .mobile-drawer a.nav-item {
            font-size: 18px;
            line-height: 56px;
            border-bottom: 1px solid var(--border);
            display: block;
            padding: 0 8px;
            border-radius: 0;
        }

        .mobile-drawer .mobile-cta {
            margin-top: auto;
            width: 100%;
        }

        /* Hero */
        .hero {
            position: relative;
            padding: 80px 0;
            background: linear-gradient(180deg, #F0F6FF 0%, var(--bg) 100%);
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.28;
            z-index: 0;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.15);
        }

        .hero-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            gap: 60px;
        }

        .hero-left {
            flex: 1.1;
        }

        .hero-right {
            flex: 0.9;
            position: relative;
            min-height: 380px;
        }

        .hero-right img {
            width: 100%;
            height: 100%;
            border-radius: 20px;
            box-shadow: var(--shadow);
            min-height: 380px;
            object-fit: cover;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.9);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 6px 18px;
            font-size: 14px;
            color: var(--primary);
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(6px);
        }

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

        .hero h1 {
            font-size: 44px;
            line-height: 1.2;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        .hero-sub {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 520px;
        }

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

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

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

        .section-header .tag {
            display: inline-block;
            background: #EFF6FF;
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            border-radius: 999px;
            padding: 4px 16px;
            margin-bottom: 16px;
        }

        .section-header h2 {
            font-size: 34px;
            line-height: 1.3;
            color: var(--deep-blue);
            font-weight: 700;
        }

        .section-header .subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            margin-top: 12px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        /* Timeline */
        .timeline-wrap {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
            padding: 20px 0;
        }

        .timeline-line {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            top: 0;
            bottom: 0;
            width: 2px;
            background: #BFDBFE;
        }

        .timeline-item {
            position: relative;
            display: flex;
            justify-content: flex-end;
            padding: 24px 0;
            width: 50%;
            padding-right: 48px;
        }

        .timeline-item:nth-child(even) {
            justify-content: flex-start;
            padding-right: 0;
            padding-left: 48px;
        }

        .timeline-dot {
            position: absolute;
            top: 36px;
            right: -11px;
            width: 22px;
            height: 22px;
            background: var(--primary);
            border: 4px solid #DBEAFE;
            border-radius: 50%;
            z-index: 2;
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
            animation: pulse 2s infinite;
        }

        .timeline-item:nth-child(even) .timeline-dot {
            left: -11px;
            right: auto;
        }

        @keyframes pulse {
            0%,
            100% {
                box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(37, 99, 235, 0.08);
            }
        }

        .timeline-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow);
            width: 100%;
            transition: var(--transition);
            border-left: 4px solid var(--primary);
        }

        .timeline-item:nth-child(even) .timeline-card {
            border-left: none;
            border-right: 4px solid var(--teal);
        }

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

        .timeline-step {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .timeline-step .step-num {
            background: #EFF6FF;
            border-radius: 999px;
            padding: 2px 12px;
            font-size: 13px;
            color: var(--primary);
        }

        .timeline-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--deep-blue);
        }

        .timeline-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Feature cards */
        .feature-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 24px;
        }

        .feature-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid transparent;
        }

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

        .feature-card.feature-main {
            grid-row: span 1;
        }

        .feature-card .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: #EFF6FF;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 20px;
            color: var(--primary);
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--deep-blue);
            line-height: 1.4;
        }

        .feature-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .feature-list {
            margin-top: 16px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .feature-list i {
            color: var(--teal);
            margin-top: 3px;
            font-size: 13px;
        }

        /* Pricing */
        .pricing-section {
            background: linear-gradient(180deg, var(--bg) 0%, #EEF5FF 50%, var(--bg) 100%);
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            align-items: stretch;
        }

        .pricing-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 36px 28px;
            box-shadow: var(--shadow);
            position: relative;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
            border: 1px solid var(--border);
        }

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

        .pricing-card.popular {
            border-top: 4px solid var(--primary);
            box-shadow: 0 8px 40px rgba(37, 99, 235, 0.18);
            transform: scale(1.02);
        }

        .pricing-card.popular:hover {
            transform: scale(1.02) translateY(-4px);
        }

        .pricing-ribbon {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            letter-spacing: 1px;
        }

        .pricing-name {
            font-size: 24px;
            font-weight: 700;
            color: var(--deep-blue);
            margin-bottom: 8px;
        }

        .pricing-desc {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .pricing-list {
            margin-bottom: 28px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .pricing-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .pricing-list li i {
            color: var(--primary);
            margin-top: 3px;
            font-size: 14px;
        }

        .pricing-btn {
            width: 100%;
        }

        /* CTA form */
        .cta-section {
            padding: 60px 0;
        }

        .cta-card {
            background: #EFF6FF;
            border-radius: 16px;
            padding: 48px;
            display: flex;
            gap: 48px;
            align-items: center;
            box-shadow: 0 4px 20px rgba(30, 58, 95, 0.06);
            border: 1px solid rgba(37, 99, 235, 0.08);
        }

        .cta-left {
            flex: 1;
        }

        .cta-left h2 {
            font-size: 28px;
            color: var(--deep-blue);
            margin-bottom: 12px;
            font-weight: 700;
        }

        .cta-left p {
            color: var(--text-secondary);
            font-size: 15px;
            margin-bottom: 16px;
        }

        .cta-contact {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-top: 16px;
        }

        .cta-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--deep-blue);
            font-size: 15px;
        }

        .cta-contact i {
            color: var(--primary);
            width: 18px;
            text-align: center;
        }

        .cta-right {
            flex: 1;
        }

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .form-row {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-row label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .form-input {
            height: 44px;
            border: 1px solid #D7E0EA;
            border-radius: var(--radius-btn);
            padding: 0 14px;
            background: #fff;
            font-size: 15px;
            color: var(--text-main);
            transition: var(--transition);
            width: 100%;
        }

        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }

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

        .form-select {
            height: 44px;
            border: 1px solid #D7E0EA;
            border-radius: var(--radius-btn);
            padding: 0 14px;
            background: #fff;
            font-size: 15px;
            color: var(--text-main);
            cursor: pointer;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394A3B8' d='M6 9.5L.5 4h11L6 9.5z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
        }

        .form-select:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }

        .form-submit {
            margin-top: 4px;
            width: 100%;
        }

        .form-privacy {
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
            margin-top: 4px;
        }

        /* News */
        .news-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 40px;
            flex-wrap: wrap;
            gap: 16px;
        }

        .news-header .tag {
            display: inline-block;
            background: #EFF6FF;
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            border-radius: 999px;
            padding: 4px 16px;
            margin-bottom: 10px;
        }

        .news-header h2 {
            font-size: 34px;
            color: var(--deep-blue);
            font-weight: 700;
            line-height: 1.3;
        }

        .news-header p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-top: 8px;
        }

        .news-link {
            color: var(--primary);
            font-size: 15px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .news-link:hover {
            color: var(--primary-hover);
            gap: 10px;
        }

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

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

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

        .news-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

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

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

        .news-card-body {
            padding: 20px 24px 24px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .news-card .badge {
            align-self: flex-start;
            background: #EFF6FF;
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 2px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .news-card h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--deep-blue);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
            flex-grow: 1;
        }

        .news-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
        }

        .news-meta a {
            color: var(--primary);
            font-weight: 500;
            font-size: 14px;
        }

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

        /* Empty state */
        .empty-state {
            grid-column: 1 / -1;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 60px 20px;
            border: 2px dashed var(--border);
            border-radius: var(--radius-card);
            text-align: center;
            max-width: 600px;
            margin: 0 auto;
            width: 100%;
        }

        .empty-state-inner i {
            font-size: 42px;
            color: var(--text-muted);
            margin-bottom: 16px;
            display: block;
        }

        .empty-state-inner p {
            font-size: 14px;
            color: var(--text-muted);
        }

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

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--card-bg);
            border-radius: 12px;
            box-shadow: 0 2px 12px rgba(30, 58, 95, 0.06);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgb(37, 99, 235, 0.2);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--deep-blue);
            background: none;
            width: 100%;
            text-align: left;
        }

        .faq-toggle {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: #EFF6FF;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform 0.3s ease;
            color: var(--primary);
            font-size: 14px;
            font-weight: 400;
            margin-left: 12px;
        }

        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, opacity 0.3s ease;
            opacity: 0;
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            opacity: 1;
            padding: 0 24px 20px;
            border-top: 1px solid var(--border);
            padding-top: 16px;
            margin-top: 0;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* Footer */
        .site-footer {
            background: var(--deep-blue);
            color: #fff;
            padding: 60px 0 0;
        }

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

        .footer-brand {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
        }

        .footer-brand span {
            color: #60A5FA;
        }

        .footer-desc {
            font-size: 14px;
            color: #C7D3E3;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .footer-col h4 {
            font-size: 16px;
            color: #fff;
            margin-bottom: 20px;
            font-weight: 600;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            color: #C7D3E3;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-links a i {
            font-size: 12px;
            color: #60A5FA;
        }

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

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #C7D3E3;
            font-size: 14px;
        }

        .footer-contact i {
            width: 16px;
            color: #60A5FA;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: #9BB0C8;
            flex-wrap: wrap;
            gap: 8px;
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .nav-menu {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .hero {
                padding: 60px 0;
            }

            .hero-inner {
                flex-direction: column-reverse;
                gap: 40px;
            }

            .hero-right {
                min-height: 300px;
                width: 100%;
            }

            .hero-right img {
                min-height: 300px;
            }

            .hero h1 {
                font-size: 36px;
            }

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

            .feature-card.feature-main {
                grid-column: span 2;
            }

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

            .pricing-card.popular {
                order: -1;
                grid-column: span 2;
                transform: none;
            }

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

            .cta-card {
                flex-direction: column;
                padding: 32px 24px;
            }

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

        @media (max-width: 767px) {
            .section {
                padding: 56px 0;
            }

            .hero {
                padding: 40px 0;
            }

            .hero h1 {
                font-size: 32px;
            }

            .hero-sub {
                font-size: 15px;
            }

            .hero-right {
                min-height: 220px;
            }

            .hero-right img {
                min-height: 220px;
            }

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

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

            .section-header h2 {
                font-size: 26px;
            }

            .timeline-line {
                left: 16px;
                transform: none;
            }

            .timeline-item {
                width: 100%;
                padding-right: 0;
                padding-left: 56px;
                justify-content: flex-start;
            }

            .timeline-item:nth-child(even) {
                padding-left: 56px;
                padding-right: 0;
            }

            .timeline-dot {
                left: 5px;
                right: auto;
            }

            .timeline-item:nth-child(even) .timeline-dot {
                left: 5px;
                right: auto;
            }

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

            .feature-card.feature-main {
                grid-column: span 1;
            }

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

            .pricing-card.popular {
                grid-column: span 1;
                order: 0;
                transform: none;
            }

            .pricing-card.popular:hover {
                transform: translateY(-4px);
            }

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

            .news-header {
                flex-direction: column;
                align-items: flex-start;
            }

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

            .cta-card {
                padding: 28px 20px;
                gap: 32px;
            }

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

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

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

            .form-select,
            .form-input,
            .form-submit {
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .logo-brand {
                font-size: 17px;
            }

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

            .timeline-card {
                padding: 18px;
            }

            .timeline-card h3 {
                font-size: 17px;
            }

            .pricing-card {
                padding: 28px 20px;
            }
        }

/* roulang page: article */
:root {
            --primary: #2563EB;
            --primary-hover: #1D4ED8;
            --primary-light: #EFF6FF;
            --primary-border: #BFDBFE;
            --secondary: #0FA3A3;
            --deep-blue: #1E3A5F;
            --bg: #F6F9FC;
            --card-bg: #FFFFFF;
            --text-main: #1E293B;
            --text-sub: #475569;
            --text-muted: #94A3B8;
            --border: #E6EDF4;
            --error: #DC2626;
            --disabled: #CBD5E1;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 16px;
            --shadow-sm: 0 4px 20px rgba(30,58,95,0.08);
            --shadow-hover: 0 8px 30px rgba(30,58,95,0.14);
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s, background .2s, box-shadow .2s, transform .2s;
        }

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

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

        .container-narrow {
            max-width: 860px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: 64px;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .logo-brand {
            font-size: 22px;
            font-weight: 700;
            color: var(--deep-blue);
            letter-spacing: -0.5px;
            line-height: 1.2;
            display: flex;
            align-items: center;
            gap: 0;
        }

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

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-item {
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            position: relative;
            transition: background .2s, color .2s;
        }

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

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

        .nav-item.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 20px;
            right: 20px;
            height: 3px;
            border-radius: 4px;
            background: var(--primary);
        }

        .nav-cta {
            margin-left: 8px;
            height: 38px;
            padding: 0 24px;
            line-height: 38px;
            font-size: 14px;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 4px 14px rgba(37,99,235,0.28);
            transition: background .2s, transform .2s, box-shadow .2s;
        }

        .nav-cta:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37,99,235,0.32);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--deep-blue);
            cursor: pointer;
            padding: 8px 12px;
            border-radius: 8px;
        }

        .nav-toggle:hover {
            background: var(--primary-light);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 46px;
            padding: 0 28px;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: var(--primary);
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: background .2s, transform .2s, box-shadow .2s;
            box-shadow: 0 4px 16px rgba(37,99,235,0.24);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(37,99,235,0.3);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(37, 99, 235, 0.25);
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 46px;
            padding: 0 28px;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            background: #fff;
            border: 1px solid var(--primary);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: background .2s, transform .2s, box-shadow .2s;
        }

        .btn-secondary:hover {
            background: var(--primary-light);
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(37,99,235,0.1);
        }

        .btn-secondary:active {
            transform: translateY(0);
        }

        .btn-secondary:focus-visible {
            outline: 3px solid rgba(37, 99, 235, 0.25);
            outline-offset: 2px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 999px;
            line-height: 1.4;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-bar {
            padding: 18px 0 0;
            background: transparent;
            border-bottom: none;
        }

        .breadcrumb-list {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 14px;
            color: var(--text-sub);
        }

        .breadcrumb-list a {
            color: var(--text-sub);
        }

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

        .breadcrumb-list .sep {
            color: var(--text-muted);
            margin: 0 2px;
        }

        .breadcrumb-list .current {
            color: var(--primary);
            font-weight: 500;
            max-width: 320px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* ===== 文章页Banner ===== */
        .article-banner {
            padding: 48px 0 36px;
            background: linear-gradient(180deg, #FFFFFF 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--border);
        }

        .article-head {
            text-align: left;
        }

        .article-head .badge-row {
            margin-bottom: 16px;
            display: flex;
            gap: 10px;
        }

        .article-head h1 {
            font-size: 36px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 18px;
            max-width: 780px;
            letter-spacing: -0.3px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 14px;
            color: var(--text-muted);
        }

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

        .article-meta i {
            font-size: 14px;
            color: var(--primary);
        }

        /* ===== 正文区 ===== */
        .article-section {
            padding: 48px 0 64px;
        }

        .article-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 56px 56px;
            margin-top: 32px;
        }

        .cms-content {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
        }

        .cms-content p {
            margin-bottom: 24px;
        }

        .cms-content h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
            margin: 40px 0 16px;
            line-height: 1.3;
            border-left: 4px solid var(--primary);
            padding-left: 16px;
        }

        .cms-content h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--text-main);
            margin: 32px 0 12px;
            line-height: 1.4;
        }

        .cms-content h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin: 24px 0 10px;
        }

        .cms-content img {
            border-radius: 12px;
            margin: 24px 0;
            width: 100%;
            height: auto;
        }

        .cms-content blockquote {
            border-left: 4px solid var(--primary);
            background: #F1F5F9;
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
            color: var(--text-sub);
            font-style: normal;
        }

        .cms-content ul,
        .cms-content ol {
            margin: 16px 0 24px;
            padding-left: 0;
            list-style: none;
        }

        .cms-content ul li {
            padding-left: 28px;
            position: relative;
            margin-bottom: 10px;
        }

        .cms-content ul li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 0;
            color: var(--primary);
            font-size: 14px;
        }

        .cms-content ol {
            counter-reset: cms-counter;
        }

        .cms-content ol li {
            padding-left: 36px;
            position: relative;
            margin-bottom: 10px;
            counter-increment: cms-counter;
        }

        .cms-content ol li::before {
            content: counter(cms-counter);
            position: absolute;
            left: 0;
            top: 2px;
            width: 24px;
            height: 24px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .cms-content a {
            color: var(--primary);
            border-bottom: 1px solid transparent;
            transition: border-color .2s;
        }

        .cms-content a:hover {
            border-bottom-color: var(--primary);
        }

        .cms-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
            border-radius: 8px;
            overflow: hidden;
        }

        .cms-content table th,
        .cms-content table td {
            border: 1px solid var(--border);
            padding: 12px 16px;
            text-align: left;
        }

        .cms-content table th {
            background: var(--primary-light);
            font-weight: 600;
            color: var(--deep-blue);
        }

        .cms-content code {
            background: #F1F5F9;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 14px;
            font-family: 'SFMono-Regular', Consolas, monospace;
        }

        .cms-content pre {
            background: #1E293B;
            color: #E2E8F0;
            padding: 20px;
            border-radius: 12px;
            overflow-x: auto;
            margin: 24px 0;
        }

        .cms-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
            font-size: 14px;
        }

        /* ===== 内容未找到 ===== */
        .not-found-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 64px 40px;
            text-align: center;
            margin-top: 32px;
            border: 2px dashed var(--border);
        }

        .not-found-card .icon-circle {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .not-found-card .icon-circle i {
            font-size: 30px;
            color: var(--primary);
        }

        .not-found-card h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .not-found-card p {
            color: var(--text-sub);
            font-size: 15px;
            margin-bottom: 28px;
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 64px 0 72px;
        }

        .related-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
        }

        .related-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.3;
        }

        .related-head h2 span {
            color: var(--primary);
        }

        .related-head p {
            font-size: 14px;
            color: var(--text-muted);
        }

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

        .related-card {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform .3s, box-shadow .3s;
            cursor: pointer;
            display: block;
        }

        .related-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .related-card .card-cover {
            aspect-ratio: 16/9;
            overflow: hidden;
        }

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

        .related-card:hover .card-cover img {
            transform: scale(1.04);
        }

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

        .related-card .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 999px;
            padding: 4px 12px;
            margin-bottom: 10px;
        }

        .related-card .card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 44px;
        }

        .related-card .card-desc {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .card-read {
            margin-top: 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .related-card .card-read i {
            font-size: 12px;
            transition: transform .2s;
        }

        .related-card:hover .card-read i {
            transform: translateX(3px);
        }

        /* ===== 返回按钮区 ===== */
        .article-footer-nav {
            padding: 8px 0 72px;
            text-align: center;
        }

        .article-footer-nav .btn-secondary {
            gap: 8px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--deep-blue);
            color: rgba(255, 255, 255, 0.85);
            padding: 64px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }

        .footer-brand {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand span {
            color: #BFDBFE;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.7);
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: color .2s;
        }

        .footer-links a i {
            font-size: 10px;
            color: #BFDBFE;
        }

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

        .footer-contact {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-contact li i {
            color: #BFDBFE;
            width: 16px;
            text-align: center;
            font-size: 13px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }

            .nav-menu {
                display: none;
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 20px 24px 28px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 30px rgba(30, 58, 95, 0.08);
                z-index: 99;
            }

            .nav-menu.open {
                display: flex;
            }

            .nav-item {
                width: 100%;
                font-size: 18px;
                padding: 14px 20px;
                border-radius: var(--radius-sm);
            }

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

            .nav-item.active {
                background: var(--primary-light);
                color: var(--primary);
                border-left: 3px solid var(--primary);
                border-radius: 0 8px 8px 0;
            }

            .nav-cta {
                width: 100%;
                margin: 12px 0 0;
                justify-content: center;
                height: 46px;
                line-height: 46px;
            }

            .nav-toggle {
                display: block;
            }

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

        @media (max-width: 768px) {
            .article-card {
                padding: 32px 24px;
            }

            .article-head h1 {
                font-size: 28px;
                line-height: 1.35;
            }

            .article-meta {
                gap: 12px;
                font-size: 13px;
            }

            .breadcrumb-list .current {
                max-width: 200px;
            }

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

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }

            .container-narrow {
                padding: 0 16px;
            }

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

            .article-section {
                padding: 32px 0 48px;
            }

            .related-section {
                padding: 48px 0 56px;
            }

            .article-footer-nav {
                padding: 0 0 56px;
            }

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

            .article-card {
                padding: 24px 20px;
                border-radius: 12px;
            }

            .cms-content h2 {
                font-size: 22px;
            }

            .cms-content h3 {
                font-size: 18px;
            }

            .cms-content p {
                font-size: 15px;
                line-height: 1.85;
            }

            .related-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }

            .not-found-card {
                padding: 48px 24px;
            }

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

        @media (max-width: 480px) {
            .breadcrumb-list .current {
                max-width: 140px;
            }

            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

/* roulang page: category1 */
:root{
    --primary:#2563EB;
    --primary-hover:#1D4ED8;
    --deep:#1E3A5F;
    --teal:#0FA3A3;
    --bg:#F6F9FC;
    --card:#FFFFFF;
    --text:#1E293B;
    --text-secondary:#475569;
    --text-weak:#94A3B8;
    --border:#E6EDF4;
    --error:#DC2626;
    --success:#0FA3A3;
    --disabled:#CBD5E1;
    --radius-card:14px;
    --radius-btn:8px;
    --shadow:0 4px 20px rgba(30,58,95,0.08);
    --shadow-hover:0 8px 30px rgba(30,58,95,0.14);
    --container-w:1200px;
    --header-h:64px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
    background:var(--bg);
    color:var(--text);
    font-size:16px;
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none;transition:color .2s}
img{max-width:100%;display:block;object-fit:cover}
ul,ol{list-style:none}
button,input,select{font-family:inherit;font-size:inherit;outline:none}
.container{max-width:var(--container-w);margin:0 auto;padding:0 24px}
.badge{
    display:inline-flex;align-items:center;gap:6px;
    background:#EFF6FF;color:var(--primary);
    font-size:14px;font-weight:600;
    padding:6px 14px;border-radius:999px;
}
.section{padding:96px 0}
.section-head{max-width:680px;margin:0 auto 48px;text-align:center}
.section-head h2{font-size:34px;line-height:1.3;font-weight:700;color:var(--text)}
.section-head .section-sub{margin-top:12px;font-size:16px;color:var(--text-secondary)}

/* Buttons */
.btn-primary,.btn-secondary{
    display:inline-flex;align-items:center;justify-content:center;
    height:46px;padding:0 28px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;line-height:1;
    cursor:pointer;border:none;transition:all .25s ease;
    text-align:center;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(37,99,235,0.28)}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 8px 24px rgba(37,99,235,0.35);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-primary:focus-visible,.btn-secondary:focus-visible{outline:3px solid rgba(37,99,235,0.25)}
.btn-secondary{background:#fff;color:var(--primary);border:1px solid var(--primary)}
.btn-secondary:hover{background:#EFF6FF;transform:translateY(-2px)}
.btn-secondary:active{transform:translateY(0)}

/* Header */
.site-header{
    position:sticky;top:0;z-index:1000;
    background:rgba(255,255,255,0.92);backdrop-filter:blur(8px);
    border-bottom:1px solid var(--border);
    height:var(--header-h);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.logo-brand{font-size:22px;font-weight:800;color:var(--deep);letter-spacing:0.5px}
.logo-brand span{color:var(--primary)}
.nav-menu{display:flex;align-items:center;gap:8px}
.nav-item{
    display:inline-block;padding:10px 20px;border-radius:8px;
    font-size:15px;font-weight:500;color:var(--text-secondary);
    transition:background .2s,color .2s;
    position:relative;
}
.nav-item:hover{background:#EFF6FF;color:var(--primary)}
.nav-item.active{background:#EFF6FF;color:var(--primary);font-weight:600}
.nav-item.active::after{
    content:"";position:absolute;left:20px;right:20px;bottom:2px;height:3px;
    background:var(--primary);border-radius:3px;
}
.nav-cta{margin-left:8px}
.nav-toggle{
    display:none;width:42px;height:42px;border-radius:8px;border:1px solid var(--border);
    background:#fff;color:var(--text);font-size:18px;cursor:pointer;
    align-items:center;justify-content:center;transition:all .2s;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}

/* Hero */
.hero{
    position:relative;padding:80px 0 88px;
    background:linear-gradient(135deg,#F0F6FF 0%,#F9FCFF 60%,#F0F9F7 100%);
    overflow:hidden;
}
.hero::before{
    content:"";position:absolute;top:-80px;right:-120px;width:420px;height:420px;
    background:radial-gradient(circle,rgba(37,99,235,0.08) 0%,rgba(37,99,235,0) 70%);
    border-radius:50%;
}
.hero-inner{
    display:grid;grid-template-columns:1.1fr 0.9fr;gap:64px;align-items:center;
    position:relative;z-index:2;
}
.hero-content .badge{margin-bottom:24px}
.hero-content h1{font-size:44px;line-height:1.2;font-weight:800;color:var(--text);margin-bottom:20px}
.hero-sub{font-size:17px;color:var(--text-secondary);line-height:1.8;margin-bottom:32px;max-width:540px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-metrics{
    display:flex;gap:36px;margin-top:44px;padding-top:28px;
    border-top:1px solid var(--border);
}
.hero-metrics strong{display:block;font-size:28px;font-weight:800;color:var(--deep);font-feature-settings:"tnum";line-height:1.2}
.hero-metrics span{font-size:14px;color:var(--text-weak);margin-top:4px;display:block}
.hero-visual{position:relative}
.hero-img-wrap{border-radius:18px;overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/3;background:#E4EDF7}
.hero-img-wrap img{width:100%;height:100%;object-fit:cover}
.hero-float-card{
    position:absolute;left:-32px;bottom:24px;
    background:#fff;border-radius:14px;box-shadow:var(--shadow-hover);
    padding:18px 22px;display:flex;align-items:center;gap:12px;
    max-width:260px;
}
.hero-float-card i{
    width:40px;height:40px;border-radius:10px;background:#EFF6FF;color:var(--primary);
    display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;
}
.hero-float-card strong{font-size:15px;color:var(--text);display:block}
.hero-float-card span{font-size:13px;color:var(--text-weak);line-height:1.4;display:block;margin-top:2px}

/* Feature rows */
.feature-row{
    display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
    margin-bottom:64px;
}
.feature-row:last-child{margin-bottom:0}
.feature-row.reverse .feature-media{order:2}
.feature-row.reverse .feature-text{order:1}
.feature-media{border-radius:16px;overflow:hidden;box-shadow:var(--shadow);aspect-ratio:16/11;background:#E4EDF7}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.feature-media:hover img{transform:scale(1.03)}
.feature-text h3{font-size:26px;line-height:1.35;font-weight:700;margin-bottom:16px;color:var(--text)}
.feature-text p{font-size:16px;color:var(--text-secondary);line-height:1.75;margin-bottom:20px}
.check-list{display:flex;flex-direction:column;gap:12px;margin-bottom:28px}
.check-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--text-secondary)}
.check-list i{color:var(--success);font-size:18px;margin-top:2px;flex-shrink:0}

/* Service list */
.bg-light{background:#fff}
.service-grid{
    display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.service-card{
    background:var(--card);border:1px solid var(--border);
    border-radius:var(--radius-card);padding:28px 26px;
    box-shadow:var(--shadow);transition:all .3s ease;
    position:relative;overflow:hidden;
}
.service-card::before{
    content:"";position:absolute;top:0;left:0;right:0;height:4px;
    background:var(--primary);opacity:0;transition:opacity .3s;
}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.service-card:hover::before{opacity:1}
.service-card.big{grid-column:span 2;grid-row:span 2;padding:36px}
.service-icon{
    width:48px;height:48px;border-radius:12px;background:#EFF6FF;
    display:flex;align-items:center;justify-content:center;
    color:var(--primary);font-size:20px;margin-bottom:18px;
    transition:background .3s,color .3s;
}
.service-card:hover .service-icon{background:var(--primary);color:#fff}
.service-card h3{font-size:20px;font-weight:700;margin-bottom:10px;color:var(--text)}
.service-card p{font-size:14px;color:var(--text-secondary);line-height:1.7}
.service-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.service-tags span{
    background:#F1F5F9;color:var(--text-secondary);border-radius:999px;
    font-size:12px;padding:4px 12px;
}
.service-card.big h3{font-size:22px}
.service-card.big p{font-size:15px}

/* Process timeline */
.process-section{background:var(--bg)}
.process-steps{position:relative;max-width:860px;margin:0 auto;padding-left:0}
.process-steps::before{
    content:"";position:absolute;left:24px;top:20px;bottom:20px;width:2px;
    background:#BFDBFE;
}
.process-step{
    display:flex;gap:20px;padding:0 0 28px 0;position:relative;
}
.process-step:last-child{padding-bottom:0}
.process-dot{
    width:28px;height:28px;border-radius:50%;background:var(--primary);
    border:4px solid #DBEAFE;flex-shrink:0;position:relative;z-index:2;margin-top:16px;
}
.process-dot::after{
    content:"";position:absolute;inset:-6px;border-radius:50%;
    border:1px solid rgba(37,99,235,0.3);
}
.process-card{
    background:#fff;border-radius:var(--radius-card);padding:24px 28px;
    box-shadow:var(--shadow);flex:1;transition:transform .3s,box-shadow .3s;
}
.process-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.process-card .step-num{font-size:13px;font-weight:700;color:var(--teal);letter-spacing:1px;text-transform:uppercase;margin-bottom:6px;display:block}
.process-card h3{font-size:20px;font-weight:700;margin-bottom:8px;color:var(--text)}
.process-card p{font-size:14px;color:var(--text-secondary);line-height:1.7}

/* Industries */
.industry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.industry-card{
    border-radius:var(--radius-card);overflow:hidden;position:relative;
    background:#1E293B;aspect-ratio:3/4;box-shadow:var(--shadow);
    transition:transform .3s,box-shadow .3s;
}
.industry-card img{width:100%;height:100%;object-fit:cover;opacity:.45;transition:opacity .3s,transform .5s}
.industry-card:hover img{opacity:.3;transform:scale(1.05)}
.industry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.industry-content{
    position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;
    padding:22px;background:linear-gradient(to top,rgba(15,23,42,0.85) 20%,transparent 75%);
}
.industry-content h3{color:#fff;font-size:18px;font-weight:700;margin-bottom:4px}
.industry-content p{color:rgba(255,255,255,0.75);font-size:13px;line-height:1.6}

/* CTA section */
.cta-section{padding:88px 0;background:var(--deep);position:relative;overflow:hidden}
.cta-section::before{
    content:"";position:absolute;top:-60px;right:-60px;width:260px;height:260px;
    background:rgba(255,255,255,0.05);border-radius:50%;
}
.cta-section::after{
    content:"";position:absolute;bottom:-80px;left:10%;width:200px;height:200px;
    background:rgba(255,255,255,0.03);border-radius:50%;
}
.cta-box{
    max-width:1100px;margin:0 auto;background:#fff;border-radius:16px;
    box-shadow:0 20px 60px rgba(0,0,0,0.2);padding:48px;
    display:grid;grid-template-columns:1fr 1fr;gap:48px;position:relative;z-index:2;
}
.cta-left h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--text);margin-bottom:14px}
.cta-left p{font-size:15px;color:var(--text-secondary);line-height:1.75;margin-bottom:24px}
.cta-contact-item{display:flex;align-items:center;gap:12px;margin-bottom:12px;font-size:14px;color:var(--text-secondary)}
.cta-contact-item i{width:36px;height:36px;border-radius:10px;background:#EFF6FF;color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{display:flex;flex-direction:column;gap:6px}
.form-group.full{grid-column:1/-1}
.form-input,.form-select{
    height:44px;border:1px solid #D7E0EA;border-radius:8px;padding:0 14px;
    font-size:14px;color:var(--text);background:#fff;width:100%;
    transition:border-color .2s,box-shadow .2s;
}
.form-input:focus,.form-select:focus{
    border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,0.15);
}
.form-select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23475569' d='M1.41 0L6 4.59 10.59 0 12 1.42 6 7.42 0 1.42z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}
.form-input::placeholder{color:var(--text-weak)}
.form-input.error{border-color:var(--error)}
.error-msg{display:none;font-size:12px;color:var(--error);margin-top:2px}
.form-group.has-error .error-msg{display:block}
.form-group.has-error .form-input{border-color:var(--error)}
.cta-form .btn-primary{width:100%;margin-top:6px}
.privacy-note{font-size:13px;color:var(--text-weak);margin-top:14px;text-align:left}
.form-note{font-size:12px;color:var(--text-weak);margin-top:8px;grid-column:1/-1}

/* FAQ */
.faq-section{background:#fff}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{
    background:var(--bg);border:1px solid var(--border);border-radius:12px;
    margin-bottom:12px;overflow:hidden;transition:border-color .3s;
}
.faq-item.open{border-color:var(--primary)}
.faq-question{
    width:100%;background:transparent;border:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;
    padding:18px 24px;font-size:16px;font-weight:600;color:var(--text);text-align:left;
    transition:background .2s;
}
.faq-question:hover{background:#F0F4FA}
.faq-icon{
    width:24px;height:24px;border-radius:50%;background:#EFF6FF;color:var(--primary);
    display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;
    transition:transform .3s,background .3s;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-answer{
    max-height:0;overflow:hidden;padding:0 24px;
    transition:max-height .35s ease,padding .3s ease;
}
.faq-item.open .faq-answer{max-height:200px;padding:0 24px 20px}
.faq-answer p{font-size:14px;color:var(--text-secondary);line-height:1.75;border-top:1px solid var(--border);padding-top:16px}

/* Footer */
.site-footer{background:var(--deep);color:rgba(255,255,255,0.8);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;padding-bottom:40px}
.footer-brand{font-size:22px;font-weight:800;color:#fff;margin-bottom:12px}
.footer-brand span{color:#3B82F6}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,0.65);max-width:360px}
.footer-col h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(255,255,255,0.7);font-size:14px;transition:all .2s}
.footer-links a i{font-size:10px;margin-right:6px;color:rgba(255,255,255,0.4)}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact{list-style:none}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;margin-bottom:12px;color:rgba(255,255,255,0.7)}
.footer-contact i{width:32px;height:32px;border-radius:8px;background:rgba(255,255,255,0.08);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0}
.footer-bottom{
    border-top:1px solid rgba(255,255,255,0.1);
    padding:20px 0;display:flex;justify-content:space-between;align-items:center;
    font-size:13px;color:rgba(255,255,255,0.5);flex-wrap:wrap;gap:8px;
}

/* Responsive */
@media (max-width:1023px){
    .section{padding:56px 0}
    .section-head{margin-bottom:36px}
    .hero{padding:56px 0}
    .hero-inner{grid-template-columns:1fr;gap:40px}
    .hero-visual{order:2}
    .hero-float-card{left:16px}
    .feature-row{grid-template-columns:1fr;gap:32px}
    .feature-row.reverse .feature-media{order:0}
    .feature-row.reverse .feature-text{order:1}
    .service-grid{grid-template-columns:repeat(2,1fr)}
    .service-card.big{grid-column:span 2;grid-row:auto}
    .industry-grid{grid-template-columns:repeat(2,1fr)}
    .cta-box{grid-template-columns:1fr;gap:32px;padding:36px}
    .nav-toggle{display:inline-flex}
    .nav-menu{
        display:none;position:fixed;top:var(--header-h);left:0;right:0;
        background:#fff;flex-direction:column;align-items:stretch;
        padding:16px 24px 24px;box-shadow:0 12px 30px rgba(30,58,95,0.12);
        z-index:999;border-bottom:1px solid var(--border);
    }
    .nav-menu.mobile-open{display:flex}
    .nav-item{padding:12px 16px;font-size:16px;border-radius:8px}
    .nav-item.active::after{display:none}
    .nav-cta{margin:12px 0 0;width:100%}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
    .container{padding:0 16px}
    .hero-inner{gap:32px}
    .hero-content h1{font-size:32px}
    .hero-sub{font-size:15px}
    .hero-metrics{gap:20px;flex-wrap:wrap}
    .hero-metrics strong{font-size:24px}
    .hero-float-card{position:static;margin-top:16px;max-width:100%}
    .section-head h2{font-size:26px}
    .section-head .section-sub{font-size:14px}
    .service-grid{grid-template-columns:1fr}
    .service-card.big{grid-column:span 1}
    .industry-grid{grid-template-columns:1fr;gap:16px}
    .industry-card{aspect-ratio:16/9}
    .cta-section{padding:48px 0}
    .cta-box{padding:24px;border-radius:12px}
    .cta-left h2{font-size:24px}
    .form-grid{grid-template-columns:1fr}
    .btn-primary,.btn-secondary{width:100%}
    .hero-actions .btn-primary,.hero-actions .btn-secondary{width:100%}
    .faq-question{padding:16px 18px}
    .faq-item.open .faq-answer{max-height:300px;padding:0 18px 16px}
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .footer-bottom{flex-direction:column;text-align:center}
    .process-card{padding:20px}
    .process-step{gap:16px}
    .process-steps::before{left:18px}
}
@media (max-width:520px){
    .hero-actions{flex-direction:column}
    .hero-metrics{flex-direction:column;gap:16px}
    .hero-metrics strong{display:inline-block;margin-right:8px}
    .hero-float-card{padding:14px 16px}
    .feature-text h3{font-size:22px}
    .service-card{padding:22px 20px}
    .service-card.big{padding:24px 20px}
    .process-card{padding:18px}
    .process-step{gap:12px}
}

/* roulang page: category2 */
:root {
  --primary: #2563EB;
  --primary-hover: #1D4ED8;
  --deep-blue: #1E3A5F;
  --teal: #0FA3A3;
  --bg: #F6F9FC;
  --card-bg: #FFFFFF;
  --text-main: #1E293B;
  --text-sub: #475569;
  --text-weak: #94A3B8;
  --border: #E6EDF4;
  --error: #DC2626;
  --disabled: #CBD5E1;
  --radius: 14px;
  --radius-btn: 8px;
  --shadow: 0 4px 20px rgba(30,58,95,0.08);
  --shadow-hover: 0 8px 30px rgba(30,58,95,0.14);
  --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-stack);font-size:16px;line-height:1.7;color:var(--text-main);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;object-fit:cover}
a{color:var(--primary);text-decoration:none;transition:color .25s}
a:hover{color:var(--primary-hover)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-head{max-width:720px;margin-bottom:48px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-title{font-size:34px;line-height:1.3;font-weight:700;color:var(--deep-blue);margin-bottom:12px}
.section-subtitle{font-size:16px;line-height:1.7;color:var(--text-sub)}
.text-center{text-align:center}
.badge{display:inline-flex;align-items:center;background:#EFF6FF;color:var(--primary);font-size:14px;font-weight:500;padding:6px 14px;border-radius:999px;line-height:1}

/* Button */
.btn-primary,.btn-secondary{display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 28px;border-radius:var(--radius-btn);font-size:16px;font-weight:600;cursor:pointer;text-decoration:none;transition:all .25s;border:none;line-height:1}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover);color:#fff;transform:translateY(-2px);box-shadow:0 6px 16px rgba(37,99,235,0.3)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-primary:focus{outline:none;box-shadow:0 0 0 3px rgba(37,99,235,0.25)}
.btn-secondary{background:#fff;color:var(--primary);border:1px solid var(--primary)}
.btn-secondary:hover{background:#EFF6FF;color:var(--primary);transform:translateY(-2px)}
.btn-secondary:active{transform:translateY(0)}
.btn-secondary:focus{outline:none;box-shadow:0 0 0 3px rgba(37,99,235,0.2)}
.btn-lg{height:52px;padding:0 36px;font-size:16px}

/* Header */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,0.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);height:64px}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo-brand{font-size:24px;font-weight:700;color:var(--deep-blue);letter-spacing:-0.5px;white-space:nowrap}
.logo-brand span{color:var(--primary)}
.nav-menu{display:flex;align-items:center;gap:8px}
.nav-item{padding:12px 20px;border-radius:8px;color:var(--text-sub);font-size:15px;font-weight:500;position:relative;transition:all .25s}
.nav-item:hover{background:#EFF6FF;color:var(--primary)}
.nav-item.active{background:#EFF6FF;color:var(--primary);box-shadow:inset 0 -3px 0 var(--primary)}
.nav-cta{margin-left:8px;flex-shrink:0}
.nav-toggle{display:none;background:none;border:none;font-size:22px;color:var(--deep-blue);cursor:pointer;padding:8px}

/* Hero */
.hero{position:relative;padding:110px 0 100px;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat}
.hero::before{content:'';position:absolute;inset:0;background:rgba(255,255,255,0.86)}
.hero-content{position:relative;z-index:1;max-width:820px;margin:0 auto;text-align:center}
.hero-tag{display:inline-block;background:#fff;border:1px solid var(--border);color:var(--primary);font-size:14px;font-weight:600;padding:6px 16px;border-radius:999px;margin-bottom:24px;box-shadow:0 2px 8px rgba(30,58,95,0.06)}
.hero-title{font-size:44px;line-height:1.2;font-weight:700;color:var(--deep-blue);margin-bottom:20px}
.hero-title em{font-style:normal;color:var(--primary)}
.hero-subtitle{font-size:18px;line-height:1.8;color:var(--text-sub);max-width:680px;margin:0 auto 36px}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* Solutions */
.solution-featured{display:grid;grid-template-columns:1.05fr 0.95fr;gap:0;background:var(--card-bg);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);margin-bottom:32px}
.solution-featured-media{position:relative;min-height:340px}
.solution-featured-media img{position:absolute;inset:0;width:100%;height:100%}
.solution-featured-content{padding:40px;display:flex;flex-direction:column;justify-content:center}
.solution-featured-content .badge{margin-bottom:16px;align-self:flex-start}
.solution-featured-content h3{font-size:24px;font-weight:600;color:var(--deep-blue);margin-bottom:12px}
.solution-featured-content p{color:var(--text-sub);line-height:1.8;margin-bottom:20px}
.solution-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.solution-tags span{background:var(--bg);color:var(--text-sub);font-size:13px;padding:4px 12px;border-radius:999px}
.solution-link{font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px}
.solution-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.solution-card{background:var(--card-bg);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.solution-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.solution-card-media{aspect-ratio:16/10;overflow:hidden}
.solution-card-media img{width:100%;height:100%;transition:transform .4s}
.solution-card:hover .solution-card-media img{transform:scale(1.04)}
.solution-card-content{padding:24px}
.solution-card-content h3{font-size:20px;font-weight:600;color:var(--deep-blue);margin-bottom:8px}
.solution-card-content p{font-size:15px;color:var(--text-sub);line-height:1.7}

/* Roadmap */
.roadmap-section{background:#fff}
.roadmap-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.roadmap-steps::before{content:'';position:absolute;top:28px;left:6%;right:6%;height:2px;background:#BFDBFE;z-index:0}
.roadmap-step{position:relative;z-index:1;background:var(--bg);border-radius:var(--radius);padding:28px;border:1px solid var(--border);transition:box-shadow .3s,transform .3s}
.roadmap-step:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.step-num{width:56px;height:56px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;margin-bottom:20px;box-shadow:0 4px 12px rgba(37,99,235,0.35)}
.step-title{font-size:18px;font-weight:600;color:var(--deep-blue);margin-bottom:6px}
.step-method{font-size:13px;color:var(--teal);font-weight:500;margin-bottom:10px}
.step-desc{font-size:14px;color:var(--text-sub);line-height:1.7}

/* Compare */
.compare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;align-items:stretch}
.compare-card{background:var(--card-bg);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);position:relative;display:flex;flex-direction:column;transition:transform .3s,box-shadow .3s}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.compare-card.main{border-top:4px solid var(--primary);box-shadow:0 8px 30px rgba(37,99,235,0.12)}
.compare-card.main:hover{box-shadow:0 12px 36px rgba(37,99,235,0.18)}
.compare-badge{position:absolute;top:0;right:24px;transform:translateY(-50%);background:var(--primary);color:#fff;font-size:13px;font-weight:600;padding:4px 14px;border-radius:999px}
.compare-name{font-size:22px;font-weight:700;color:var(--deep-blue);margin-bottom:4px}
.compare-desc{font-size:15px;color:var(--text-sub);line-height:1.6;margin-bottom:20px;min-height:48px}
.compare-list{list-style:none;margin-bottom:28px;flex:1}
.compare-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--text-sub);padding:8px 0;border-bottom:1px dashed var(--border)}
.compare-list li:last-child{border-bottom:none}
.compare-list li i{color:var(--primary);font-size:13px;margin-top:4px;width:16px;height:16px;flex-shrink:0}
.compare-cta{margin-top:auto}

/* Scenarios */
.scenario-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.scenario-item{background:var(--card-bg);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);display:flex;gap:20px;align-items:flex-start;transition:transform .3s,box-shadow .3s}
.scenario-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.scenario-icon{width:52px;height:52px;flex-shrink:0;background:#EFF6FF;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--primary)}
.scenario-info h3{font-size:18px;font-weight:600;color:var(--deep-blue);margin-bottom:4px}
.scenario-tags{display:flex;gap:8px;margin-bottom:8px}
.scenario-tags span{font-size:13px;color:var(--teal);font-weight:500}
.scenario-info p{font-size:15px;color:var(--text-sub);line-height:1.7}

/* Stats */
.stats-section{background:var(--deep-blue);padding:80px 0}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:48px;text-align:center}
.stat-number{font-size:48px;font-weight:700;color:#fff;line-height:1.2;font-feature-settings:"tnum";margin-bottom:8px}
.stat-number span{color:var(--teal)}
.stat-label{font-size:16px;color:rgba(255,255,255,0.75)}

/* CTA */
.cta-section{padding:96px 0}
.cta-box{background:#EFF6FF;border-radius:16px;padding:56px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.cta-left h2{font-size:34px;line-height:1.3;color:var(--deep-blue);margin-bottom:12px}
.cta-left p{color:var(--text-sub);line-height:1.8;margin-bottom:20px}
.cta-contact{list-style:none;margin-top:16px}
.cta-contact li{font-size:15px;color:var(--text-sub);padding:6px 0}
.cta-contact li i{color:var(--primary);width:24px;margin-right:8px}
.cta-form{background:#fff;border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:14px;font-weight:500;color:var(--text-main);margin-bottom:8px}
.form-group input,.form-group select{width:100%;height:46px;border:1px solid var(--border);border-radius:var(--radius-btn);padding:0 14px;font-size:15px;color:var(--text-main);background:#fff;transition:border-color .25s,box-shadow .25s;outline:none}
.form-group input:focus,.form-group select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,0.15)}
.form-group input::placeholder{color:var(--text-weak)}
.form-success{background:#F0FDF9;border:1px solid #A7E8DE;color:var(--teal);font-size:14px;padding:12px 16px;border-radius:8px;margin-bottom:20px}
.form-privacy{font-size:13px;color:var(--text-weak);line-height:1.6;margin-top:12px}
.cta-form .btn-primary{width:100%}

/* FAQ */
.faq-wrap{max-width:800px;margin:0 auto}
.faq-item{background:var(--card-bg);border-radius:12px;box-shadow:var(--shadow);margin-bottom:12px;overflow:hidden;transition:box-shadow .3s}
.faq-item.open{box-shadow:var(--shadow-hover)}
.faq-question{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;cursor:pointer;font-size:16px;font-weight:600;color:var(--deep-blue);background:none;border:none;text-align:left;width:100%;transition:color .25s}
.faq-question:hover{color:var(--primary)}
.faq-icon{width:24px;height:24px;flex-shrink:0;border-radius:50%;background:#EFF6FF;color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;transition:transform .3s,background .3s}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease,opacity .3s ease;opacity:0}
.faq-item.open .faq-answer{opacity:1}
.faq-answer p{padding:0 24px 20px;color:var(--text-sub);font-size:15px;line-height:1.8;border-top:1px solid var(--border);padding-top:16px}

/* Footer */
.site-footer{background:var(--deep-blue);color:rgba(255,255,255,0.85);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;padding-bottom:56px}
.footer-brand{font-size:24px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand span{color:var(--teal)}
.footer-desc{font-size:14px;color:rgba(255,255,255,0.65);line-height:1.8;max-width:340px}
.footer-col h4{font-size:16px;font-weight:600;color:#fff;margin-bottom:20px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:rgba(255,255,255,0.65);font-size:14px;display:inline-flex;align-items:center;gap:8px;transition:color .25s}
.footer-links a i{font-size:10px;color:var(--teal)}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact{list-style:none}
.footer-contact li{font-size:14px;color:rgba(255,255,255,0.65);padding:6px 0;display:flex;align-items:center;gap:12px}
.footer-contact li i{width:16px;color:var(--teal);font-size:14px}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.12);padding:20px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:14px;color:rgba(255,255,255,0.5)}
.footer-bottom span{white-space:nowrap}

/* Responsive */
@media (min-width:1024px){
  .nav-menu{display:flex!important}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .nav-toggle{display:block}
  .nav-menu{position:fixed;top:64px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:20px 24px;box-shadow:0 20px 40px rgba(30,58,95,0.12);border-bottom:1px solid var(--border);display:none;max-height:calc(100vh - 64px);overflow-y:auto;z-index:999}
  .nav-menu.open{display:flex}
  .nav-item{display:block;text-align:left;padding:14px 16px;font-size:16px;border-radius:8px}
  .nav-item.active{box-shadow:none;background:#EFF6FF}
  .nav-cta{margin:16px 0 0;justify-content:center}
  .solution-featured{grid-template-columns:1fr}
  .solution-featured-media{min-height:260px;position:relative}
  .solution-featured-media img{position:absolute;inset:0}
  .roadmap-steps{grid-template-columns:1fr 1fr}
  .roadmap-steps::before{display:none}
  .compare-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}
  .scenario-grid{grid-template-columns:1fr}
  .cta-box{grid-template-columns:1fr;padding:40px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stats-grid .stat-item:last-child{grid-column:span 2}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .hero{padding:72px 0 64px}
  .hero-title{font-size:32px}
  .hero-subtitle{font-size:16px}
  .section{padding:56px 0}
  .section-title{font-size:26px}
  .solution-grid{grid-template-columns:1fr}
  .solution-featured-content{padding:28px}
  .roadmap-steps{grid-template-columns:1fr}
  .compare-grid{gap:24px}
  .cta-section{padding:56px 0}
  .cta-box{padding:28px 20px}
  .cta-form{padding:24px 20px}
  .cta-left{text-align:left}
  .cta-left h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:center;text-align:center}
  .btn-primary,.btn-secondary{width:100%;max-width:none}
  .hero-actions{flex-direction:column;align-items:stretch}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .header-inner{padding:0 16px}
  .logo-brand{font-size:20px}
  .solution-card-content{padding:20px}
  .scenario-item{flex-direction:column;padding:24px}
  .cta-left p{font-size:15px}
}

/* roulang page: category3 */
:root {
        --primary: #2563EB;
        --primary-hover: #1D4ED8;
        --primary-light: #EFF6FF;
        --accent: #0FA3A3;
        --dark: #1E3A5F;
        --bg: #F6F9FC;
        --card-bg: #FFFFFF;
        --text: #1E293B;
        --text-secondary: #475569;
        --text-muted: #94A3B8;
        --border: #E6EDF4;
        --error: #DC2626;
        --disabled: #CBD5E1;
        --radius: 14px;
        --radius-sm: 8px;
        --shadow: 0 4px 20px rgba(30, 58, 95, 0.08);
        --shadow-hover: 0 8px 30px rgba(30, 58, 95, 0.14);
        --container: 1200px;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        font-size: 16px;
        line-height: 1.7;
        color: var(--text);
        background: var(--bg);
        -webkit-font-smoothing: antialiased;
    }

    a {
        text-decoration: none;
        color: inherit;
        transition: color .2s ease;
    }

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

    ul,
    ol {
        list-style: none;
    }

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

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

    /* ===== Header / Nav ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        height: 64px;
        background: rgba(255, 255, 255, 0.95);
        border-bottom: 1px solid var(--border);
    }

    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 100%;
    }

    .logo-brand {
        font-size: 22px;
        font-weight: 800;
        color: var(--dark);
        letter-spacing: .5px;
        line-height: 1.2;
        white-space: nowrap;
    }

    .logo-brand span {
        color: var(--primary);
        font-weight: 800;
    }

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

    .nav-item {
        display: inline-block;
        padding: 10px 20px;
        border-radius: var(--radius-sm);
        font-size: 15px;
        font-weight: 500;
        color: var(--text-secondary);
        line-height: 1.4;
        transition: background .2s ease, color .2s ease;
    }

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

    .nav-item.active {
        background: var(--primary-light);
        color: var(--primary);
        font-weight: 600;
        position: relative;
    }

    .nav-item.active::after {
        content: '';
        position: absolute;
        left: 16px;
        right: 16px;
        bottom: 4px;
        height: 3px;
        border-radius: 3px;
        background: var(--primary);
    }

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

    .nav-toggle {
        display: none;
        background: none;
        border: none;
        font-size: 22px;
        color: var(--dark);
        cursor: pointer;
        padding: 8px 10px;
        border-radius: 8px;
        transition: background .2s ease;
    }

    .nav-toggle:hover {
        background: var(--primary-light);
    }

    /* ===== Buttons ===== */
    .btn-primary,
    .btn-secondary {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 46px;
        padding: 0 28px;
        border-radius: var(--radius-sm);
        font-size: 15px;
        font-weight: 600;
        line-height: 1;
        cursor: pointer;
        border: none;
        transition: all .2s ease;
        white-space: nowrap;
    }

    .btn-primary {
        background: var(--primary);
        color: #fff;
        box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
    }

    .btn-primary:hover {
        background: var(--primary-hover);
        transform: translateY(-3px);
        box-shadow: 0 8px 22px rgba(37, 99, 235, 0.3);
        color: #fff;
    }

    .btn-primary:active {
        transform: translateY(-1px);
    }

    .btn-primary:focus-visible {
        outline: 3px solid rgba(37, 99, 235, 0.25);
        outline-offset: 2px;
    }

    .btn-secondary {
        background: #fff;
        color: var(--primary);
        border: 1.5px solid var(--primary);
        box-shadow: none;
    }

    .btn-secondary:hover {
        background: var(--primary-light);
        transform: translateY(-3px);
        box-shadow: 0 6px 16px rgba(37, 99, 235, 0.12);
        color: var(--primary);
    }

    .btn-secondary:focus-visible {
        outline: 3px solid rgba(37, 99, 235, 0.25);
        outline-offset: 2px;
    }

    .btn-block {
        width: 100%;
    }

    /* ===== Hero ===== */
    .page-hero {
        position: relative;
        background:
            linear-gradient(120deg, rgba(255, 255, 255, 0.92) 0%, rgba(246, 249, 252, 0.72) 60%, rgba(220, 232, 245, 0.5) 100%),
            url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        padding: 88px 0 72px;
        border-bottom: 1px solid var(--border);
        overflow: hidden;
    }

    .page-hero .container {
        position: relative;
        z-index: 2;
        max-width: 860px;
        text-align: center;
    }

    .breadcrumb {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        color: var(--text-muted);
        margin-bottom: 20px;
        background: rgba(255, 255, 255, 0.7);
        padding: 6px 18px;
        border-radius: 999px;
        border: 1px solid var(--border);
    }

    .breadcrumb a {
        color: var(--text-secondary);
        transition: color .2s ease;
    }

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

    .breadcrumb i {
        font-size: 10px;
        color: var(--text-muted);
    }

    .page-hero h1 {
        font-size: 44px;
        line-height: 1.2;
        font-weight: 700;
        color: var(--dark);
        margin-bottom: 18px;
        letter-spacing: 1px;
    }

    .page-hero .hero-subtitle {
        font-size: 17px;
        line-height: 1.8;
        color: var(--text-secondary);
        max-width: 640px;
        margin: 0 auto 32px;
    }

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

    .hero-tags {
        display: flex;
        justify-content: center;
        gap: 10px;
        flex-wrap: wrap;
        margin-top: 24px;
    }

    .hero-tags .tag {
        background: rgba(255, 255, 255, 0.8);
        border: 1px solid var(--border);
    }

    /* ===== Tag / Badge ===== */
    .tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: var(--primary-light);
        color: var(--primary);
        font-size: 13px;
        font-weight: 500;
        padding: 5px 14px;
        border-radius: 999px;
        line-height: 1.4;
    }

    .tag.accent {
        background: rgba(15, 163, 163, 0.08);
        color: var(--accent);
    }

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

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

    .section-header {
        max-width: 640px;
        margin-bottom: 48px;
    }

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

    .section-header h2 {
        font-size: 34px;
        line-height: 1.3;
        font-weight: 700;
        color: var(--dark);
        margin-bottom: 12px;
        letter-spacing: .5px;
    }

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

    /* ===== Timeline ===== */
    .timeline-wrap {
        position: relative;
        max-width: 1000px;
        margin: 0 auto;
        padding: 20px 0;
    }

    .timeline-wrap::before {
        content: '';
        position: absolute;
        left: 50%;
        top: 0;
        bottom: 0;
        width: 2px;
        background: #BFDBFE;
        transform: translateX(-50%);
    }

    .timeline-item {
        position: relative;
        width: 50%;
        padding-right: 52px;
        margin-bottom: 40px;
        text-align: right;
    }

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

    .timeline-item:nth-child(even) {
        margin-left: 50%;
        padding-right: 0;
        padding-left: 52px;
        text-align: left;
    }

    .timeline-dot {
        position: absolute;
        top: 28px;
        right: -9px;
        width: 18px;
        height: 18px;
        border-radius: 50%;
        background: var(--primary);
        border: 3px solid #fff;
        box-shadow: 0 0 0 3px #BFDBFE;
        z-index: 2;
    }

    .timeline-item:nth-child(even) .timeline-dot {
        left: -9px;
        right: auto;
    }

    .timeline-card {
        background: var(--card-bg);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 26px 28px;
        box-shadow: var(--shadow);
        transition: box-shadow .3s ease, transform .3s ease;
    }

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

    .timeline-time {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 13px;
        font-weight: 600;
        color: var(--accent);
        background: rgba(15, 163, 163, 0.08);
        padding: 4px 14px;
        border-radius: 999px;
        margin-bottom: 12px;
        letter-spacing: .5px;
    }

    .timeline-card h3 {
        font-size: 20px;
        font-weight: 600;
        color: var(--dark);
        margin-bottom: 10px;
        line-height: 1.4;
    }

    .timeline-card p {
        font-size: 15px;
        color: var(--text-secondary);
        line-height: 1.7;
    }

    /* ===== Stats ===== */
    .stats-section {
        background: var(--dark);
        padding: 80px 0;
        position: relative;
        overflow: hidden;
    }

    .stats-section::before {
        content: '';
        position: absolute;
        top: -100px;
        right: -100px;
        width: 300px;
        height: 300px;
        border-radius: 50%;
        background: rgba(15, 163, 163, 0.08);
    }

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

    .stat-card {
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: var(--radius);
        padding: 32px 20px;
        text-align: center;
        transition: background .3s ease, transform .3s ease;
    }

    .stat-card:hover {
        background: rgba(255, 255, 255, 0.1);
        transform: translateY(-4px);
    }

    .stat-icon {
        width: 52px;
        height: 52px;
        border-radius: 14px;
        background: rgba(255, 255, 255, 0.1);
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 16px;
        font-size: 22px;
        color: var(--accent);
    }

    .stat-number {
        font-size: 42px;
        font-weight: 700;
        color: #fff;
        line-height: 1.1;
        font-feature-settings: "tnum";
        letter-spacing: 1px;
        margin-bottom: 6px;
    }

    .stat-label {
        font-size: 14px;
        color: rgba(255, 255, 255, 0.75);
    }

    .stats-section .section-header h2 {
        color: #fff;
    }

    .stats-section .section-header .section-subtitle {
        color: rgba(255, 255, 255, 0.7);
    }

    /* ===== News Cards ===== */
    .news-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }

    .news-card {
        position: relative;
        background: var(--card-bg);
        border-radius: var(--radius);
        overflow: hidden;
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
        transition: box-shadow .3s ease, transform .3s ease;
        display: flex;
        flex-direction: column;
    }

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

    .news-card:first-child {
        grid-row: span 2;
    }

    .news-card .card-media {
        aspect-ratio: 16 / 9;
        overflow: hidden;
        position: relative;
    }

    .news-card:first-child .card-media {
        aspect-ratio: 16 / 10;
    }

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

    .news-card:hover .card-media img {
        transform: scale(1.04);
    }

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

    .card-tags {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
        margin-bottom: 12px;
    }

    .news-card h3 {
        font-size: 20px;
        font-weight: 600;
        color: var(--dark);
        line-height: 1.45;
        margin-bottom: 10px;
    }

    .news-card:first-child h3 {
        font-size: 23px;
    }

    .news-card p {
        font-size: 15px;
        color: var(--text-secondary);
        line-height: 1.7;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        margin-bottom: 16px;
    }

    .card-footer {
        margin-top: auto;
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .card-link {
        font-size: 14px;
        font-weight: 600;
        color: var(--primary);
        display: inline-flex;
        align-items: center;
        gap: 6px;
        transition: gap .2s ease;
    }

    .card-link:hover {
        gap: 10px;
        color: var(--primary-hover);
    }

    /* ===== Quotes ===== */
    .quotes-section {
        background: var(--bg);
    }

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

    .quote-card {
        background: var(--card-bg);
        border-radius: var(--radius);
        border: 1px solid var(--border);
        padding: 32px 28px;
        box-shadow: var(--shadow);
        position: relative;
        transition: box-shadow .3s ease, transform .3s ease;
    }

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

    .quote-icon {
        font-size: 32px;
        color: var(--primary);
        opacity: .3;
        margin-bottom: 16px;
    }

    .quote-text {
        font-size: 15px;
        color: var(--text);
        line-height: 1.8;
        font-style: normal;
        margin-bottom: 20px;
    }

    .quote-author {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 14px;
        color: var(--text-muted);
    }

    .quote-author i {
        width: 34px;
        height: 34px;
        border-radius: 50%;
        background: var(--primary-light);
        color: var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
    }

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

    .faq-list {
        max-width: 800px;
        margin: 0 auto;
    }

    .faq-item {
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: 12px;
        margin-bottom: 12px;
        padding: 0 24px;
        transition: border-color .2s ease, box-shadow .2s ease;
        overflow: hidden;
    }

    .faq-item.active {
        border-color: var(--primary);
        box-shadow: var(--shadow);
    }

    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 20px 0;
        cursor: pointer;
        font-size: 16px;
        font-weight: 600;
        color: var(--dark);
        user-select: none;
        gap: 16px;
    }

    .faq-icon {
        width: 28px;
        height: 28px;
        min-width: 28px;
        border-radius: 50%;
        background: var(--primary-light);
        color: var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        font-weight: 400;
        transition: transform .3s ease, background .3s ease;
    }

    .faq-item.active .faq-icon {
        transform: rotate(45deg);
        background: var(--primary);
        color: #fff;
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height .35s ease, padding .35s ease;
        padding: 0;
        font-size: 15px;
        color: var(--text-secondary);
        line-height: 1.7;
    }

    .faq-item.active .faq-answer {
        max-height: 200px;
        padding: 0 0 20px;
    }

    /* ===== CTA ===== */
    .cta-section {
        padding: 80px 0;
        background: var(--bg);
    }

    .cta-card {
        background: var(--primary-light);
        border: 1px solid rgba(37, 99, 235, 0.12);
        border-radius: 20px;
        padding: 52px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 48px;
        align-items: center;
        box-shadow: var(--shadow);
    }

    .cta-left h2 {
        font-size: 30px;
        font-weight: 700;
        color: var(--dark);
        line-height: 1.3;
        margin-bottom: 16px;
    }

    .cta-left p {
        font-size: 16px;
        color: var(--text-secondary);
        line-height: 1.7;
        margin-bottom: 24px;
    }

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

    .cta-contact .contact-line {
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 15px;
        color: var(--dark);
    }

    .cta-contact .contact-line i {
        width: 38px;
        height: 38px;
        border-radius: 10px;
        background: #fff;
        color: var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
    }

    .contact-form {
        background: var(--card-bg);
        border-radius: 16px;
        padding: 32px;
        box-shadow: var(--shadow);
    }

    .form-group {
        margin-bottom: 18px;
    }

    .form-label {
        display: block;
        font-size: 14px;
        font-weight: 500;
        color: var(--dark);
        margin-bottom: 6px;
    }

    .form-input,
    .form-select {
        width: 100%;
        height: 44px;
        border: 1px solid #D7E0EA;
        border-radius: var(--radius-sm);
        padding: 0 14px;
        font-size: 15px;
        color: var(--text);
        background: #fff;
        transition: border-color .2s ease, box-shadow .2s ease;
    }

    .form-input:focus,
    .form-select:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
    }

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

    .form-privacy {
        font-size: 13px;
        color: var(--text-muted);
        line-height: 1.6;
        margin-top: 14px;
        display: flex;
        align-items: flex-start;
        gap: 6px;
    }

    .form-privacy i {
        margin-top: 3px;
        font-size: 12px;
        color: var(--accent);
    }

    /* ===== Footer ===== */
    .site-footer {
        background: var(--dark);
        color: rgba(255, 255, 255, 0.82);
        padding: 64px 0 0;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr;
        gap: 48px;
        padding-bottom: 48px;
    }

    .footer-brand {
        font-size: 24px;
        font-weight: 800;
        color: #fff;
        margin-bottom: 16px;
        letter-spacing: .5px;
    }

    .footer-brand span {
        color: var(--accent);
    }

    .footer-desc {
        font-size: 14px;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.65);
        max-width: 360px;
    }

    .footer-col h4 {
        font-size: 16px;
        font-weight: 600;
        color: #fff;
        margin-bottom: 18px;
    }

    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .footer-links a {
        font-size: 14px;
        color: rgba(255, 255, 255, 0.65);
        display: inline-flex;
        align-items: center;
        gap: 8px;
        transition: color .2s ease, padding-left .2s ease;
    }

    .footer-links a i {
        font-size: 10px;
        color: rgba(255, 255, 255, 0.35);
        transition: color .2s ease;
    }

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

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

    .footer-contact {
        display: flex;
        flex-direction: column;
        gap: 12px;
        font-size: 14px;
        color: rgba(255, 255, 255, 0.65);
    }

    .footer-contact li {
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .footer-contact i {
        width: 32px;
        height: 32px;
        border-radius: 8px;
        background: rgba(255, 255, 255, 0.08);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        color: var(--accent);
    }

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        padding: 20px 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        font-size: 13px;
        color: rgba(255, 255, 255, 0.45);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1023px) {
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

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

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

        .cta-card {
            grid-template-columns: 1fr;
            padding: 36px;
            gap: 32px;
        }

        .nav-menu {
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: #fff;
            flex-direction: column;
            align-items: stretch;
            padding: 16px 24px 24px;
            display: none;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
            border-bottom: 1px solid var(--border);
        }

        .nav-menu.open {
            display: flex;
        }

        .nav-item {
            padding: 14px 20px;
            font-size: 17px;
            border-radius: 8px;
        }

        .nav-item.active::after {
            left: 20px;
            right: auto;
            bottom: 10px;
            width: 20px;
        }

        .nav-cta {
            margin: 12px 0 0;
            width: 100%;
            justify-content: center;
        }

        .nav-toggle {
            display: block;
        }
    }

    @media (max-width: 767px) {
        .container {
            padding: 0 16px;
        }

        .section {
            padding: 56px 0;
        }

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

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

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

        .section-header h2 {
            font-size: 26px;
        }

        .section-header.center {
            text-align: left;
        }

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

        .hero-actions .btn-primary,
        .hero-actions .btn-secondary {
            width: 100%;
        }

        /* Timeline mobile */
        .timeline-wrap::before {
            left: 8px;
        }

        .timeline-item,
        .timeline-item:nth-child(even) {
            width: 100%;
            margin-left: 0;
            padding-left: 36px;
            padding-right: 0;
            text-align: left;
        }

        .timeline-item {
            margin-bottom: 28px;
        }

        .timeline-dot,
        .timeline-item:nth-child(even) .timeline-dot {
            left: -1px;
            right: auto;
        }

        .timeline-card {
            padding: 20px;
        }

        .timeline-card h3 {
            font-size: 18px;
        }

        .stats-grid {
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .stat-number {
            font-size: 32px;
        }

        .stat-card {
            padding: 22px 14px;
        }

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

        .news-card:first-child {
            grid-row: auto;
        }

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

        .cta-card {
            padding: 24px;
        }

        .contact-form {
            padding: 24px;
        }

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

        .footer-grid {
            grid-template-columns: 1fr;
            gap: 28px;
            padding-bottom: 32px;
        }

        .footer-bottom {
            flex-direction: column;
            text-align: center;
            padding: 16px 0;
        }

        .faq-section .container {
            padding: 0 12px;
        }

        .faq-item {
            padding: 0 16px;
        }
    }

    @media (max-width: 480px) {
        .stats-grid {
            grid-template-columns: 1fr;
        }

        .hero-tags {
            justify-content: flex-start;
        }

        .cta-card {
            padding: 20px;
        }

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