/* roulang page: index */
:root {
            --primary: #0F3D33;
            --primary-dark: #092A23;
            --primary-light: #E2EDE8;
            --accent: #B8862D;
            --accent-light: #F4E8D2;
            --bg: #F5F3EF;
            --white: #FFFFFF;
            --dark: #0F3D33;
            --text-main: #1F1F1D;
            --text-sub: #5F5F5A;
            --text-weak: #8A8A85;
            --border: #E3E0D9;
            --shadow-normal: rgba(31, 31, 29, 0.06);
            --shadow-hover: rgba(31, 31, 29, 0.10);
            --radius: 2px;
            --radius-btn: 4px;
            --container: 1200px;
            --space-section: 100px;
            --space-section-mobile: 64px;
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-mono: "SF Mono", "JetBrains Mono", "Fira Code", monospace;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-main);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

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

        .section {
            padding: var(--space-section) 0;
        }

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

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

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

        .text-weak {
            color: var(--text-weak);
            font-size: 14px;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid transparent;
            transition: height 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            height: 76px;
        }

        .site-header.scrolled {
            height: 60px;
            border-bottom-color: var(--border);
            box-shadow: 0 2px 12px rgba(31, 31, 29, 0.04);
        }

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

        .logo {
            display: flex;
            align-items: baseline;
            gap: 6px;
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            line-height: 1;
        }

        .logo .logo-sub {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            letter-spacing: 0.04em;
        }

        .logo:hover {
            opacity: 0.85;
            color: var(--primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 36px;
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
        }

        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            position: relative;
            padding: 8px 0;
            transition: color 0.25s ease;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--primary);
            opacity: 0;
            transition: opacity 0.25s ease;
        }

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

        .main-nav a:hover::after {
            opacity: 1;
        }

        .main-nav a.active {
            color: var(--primary);
        }

        .main-nav a.active::after {
            opacity: 1;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            height: 40px;
            padding: 0 22px;
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            color: var(--primary);
            font-size: 15px;
            font-weight: 500;
            transition: background-color 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
        }

        .header-cta:hover {
            background: var(--primary);
            color: var(--white);
            box-shadow: 0 4px 12px rgba(15, 61, 51, 0.18);
        }

        .header-cta:focus-visible {
            outline: 3px solid rgba(15, 61, 51, 0.25);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            color: var(--primary);
            font-size: 20px;
            transition: background-color 0.25s ease;
        }

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

        /* Mobile Menu */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--primary);
            z-index: 2000;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 32px;
        }

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

        .mobile-menu a {
            color: var(--white);
            font-size: 28px;
            font-weight: 600;
            opacity: 0.9;
            transition: opacity 0.25s ease;
        }

        .mobile-menu a:hover {
            opacity: 1;
        }

        .mobile-menu-close {
            position: absolute;
            top: 24px;
            right: 24px;
            color: var(--white);
            font-size: 32px;
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0.85;
            transition: opacity 0.25s ease;
        }

        .mobile-menu-close:hover {
            opacity: 1;
        }

        /* Hero */
        .hero {
            padding-top: 176px;
            padding-bottom: 80px;
            background: linear-gradient(180deg, var(--white) 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--border);
            border-bottom-color: var(--border);
        }

        .hero .container {
            display: flex;
            align-items: center;
            gap: 60px;
        }

        .hero-content {
            flex: 7;
        }

        .hero-visual {
            flex: 5;
            position: relative;
        }

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            letter-spacing: 0.04em;
            color: var(--text-sub);
            margin-bottom: 24px;
        }

        .hero-eyebrow::before {
            content: '';
            width: 16px;
            height: 2px;
            background: var(--primary);
            display: inline-block;
        }

        .hero h1 {
            font-size: 56px;
            line-height: 1.15;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-main);
            max-width: 800px;
            margin-bottom: 24px;
        }

        .hero h1 .highlight {
            color: var(--primary);
            border-bottom: 3px solid var(--accent);
            padding-bottom: 2px;
        }

        .hero-desc {
            font-size: 18px;
            line-height: 1.9;
            color: var(--text-sub);
            max-width: 560px;
            margin-bottom: 36px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 48px;
            padding: 0 32px;
            background: var(--primary);
            color: var(--white);
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            transition: background-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
            border: none;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: var(--white);
            box-shadow: 0 6px 16px rgba(15, 61, 51, 0.25);
            transform: translateY(-1px);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(15, 61, 51, 0.3);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            transition: background-color 0.25s ease, color 0.25s ease, transform 0.2s ease;
        }

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

        .btn-outline:focus-visible {
            outline: 3px solid rgba(15, 61, 51, 0.2);
        }

        .btn-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 48px;
            padding: 0 32px;
            background: var(--white);
            color: var(--primary-dark);
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            border: none;
            transition: background-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
        }

        .btn-light:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            transform: translateY(-1px);
        }

        .btn-light:focus-visible {
            outline: 3px solid rgba(255, 255, 255, 0.4);
        }

        .hero-visual .visual-frame {
            position: relative;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(31, 31, 29, 0.08);
        }

        .hero-visual .visual-frame img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            display: block;
        }

        .visual-badge {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(255, 255, 255, 0.92);
            border-radius: var(--radius);
            padding: 12px 18px;
            display: flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 4px 16px rgba(31, 31, 29, 0.1);
            backdrop-filter: blur(4px);
        }

        .visual-badge i {
            color: var(--accent);
            font-size: 18px;
        }

        .visual-badge span {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-main);
        }

        /* Pain Points */
        .pain-points {
            padding: var(--space-section) 0;
            background: var(--white);
            border-bottom: 1px solid var(--border);
        }

        .pain-points .container {
            display: flex;
            gap: 80px;
        }

        .pain-points-left {
            flex: 5;
        }

        .pain-points-right {
            flex: 7;
        }

        .section-label {
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.06em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .section-label::before {
            content: '';
            width: 16px;
            height: 2px;
            background: var(--accent);
            display: inline-block;
        }

        .pain-points-left h2 {
            font-size: 32px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 18px;
        }

        .pain-points-left p {
            color: var(--text-sub);
            font-size: 16px;
            line-height: 1.9;
            max-width: 380px;
        }

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

        .pain-list li {
            display: flex;
            align-items: baseline;
            gap: 24px;
            padding: 22px 0;
            border-bottom: 1px solid var(--border);
            transition: background-color 0.25s ease;
        }

        .pain-list li:first-child {
            border-top: 1px solid var(--border);
        }

        .pain-list li:hover {
            background: rgba(245, 243, 239, 0.5);
        }

        .pain-num {
            font-family: var(--font-mono);
            font-size: 15px;
            color: var(--text-weak);
            font-weight: 400;
            letter-spacing: 0.02em;
            min-width: 36px;
        }

        .pain-list .pain-text {
            font-size: 18px;
            font-weight: 500;
            color: var(--text-main);
            line-height: 1.5;
        }

        .pain-list .pain-desc {
            font-size: 14px;
            color: var(--text-sub);
            margin-top: 4px;
            line-height: 1.6;
        }

        /* Solution */
        .solution {
            padding: var(--space-section) 0;
            background: var(--bg);
        }

        .solution-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 72px;
        }

        .solution-header h2 {
            font-size: 40px;
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .solution-header p {
            font-size: 17px;
            color: var(--text-sub);
            line-height: 1.8;
        }

        .solution-row {
            display: flex;
            align-items: center;
            gap: 64px;
            margin-bottom: 80px;
        }

        .solution-row:last-child {
            margin-bottom: 0;
        }

        .solution-row.reverse {
            flex-direction: row-reverse;
        }

        .solution-img {
            flex: 1;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: 0 12px 28px var(--shadow-normal);
        }

        .solution-img img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        .solution-text {
            flex: 1;
        }

        .solution-text .solution-tag {
            display: inline-block;
            padding: 4px 14px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            border-radius: 20px;
            margin-bottom: 16px;
        }

        .solution-text h3 {
            font-size: 26px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .solution-text p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-sub);
            margin-bottom: 24px;
        }

        .solution-meta {
            padding-top: 16px;
            border-top: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .solution-meta span {
            font-size: 14px;
            color: var(--text-weak);
        }

        .solution-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 15px;
            font-weight: 500;
            color: var(--primary);
            transition: gap 0.25s ease;
        }

        .solution-link:hover {
            gap: 10px;
            color: var(--accent);
        }

        .solution-link i {
            font-size: 13px;
        }

        /* Stats */
        .stats-section {
            padding: var(--space-section) 0;
            background: var(--primary);
            color: var(--white);
        }

        .stats-grid {
            display: flex;
            justify-content: space-between;
            gap: 40px;
        }

        .stat-item {
            flex: 1;
            text-align: center;
            position: relative;
            padding: 0 24px;
        }

        .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: 0;
            top: 15%;
            bottom: 15%;
            width: 1px;
            background: rgba(255, 255, 255, 0.2);
        }

        .stat-number {
            font-size: 64px;
            font-weight: 800;
            line-height: 1;
            color: var(--white);
            font-family: var(--font-mono);
            letter-spacing: -0.03em;
        }

        .stat-number .suffix {
            font-size: 28px;
            font-weight: 600;
        }

        .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            margin-top: 14px;
            letter-spacing: 0.02em;
        }

        /* Testimonials */
        .testimonials {
            padding: var(--space-section) 0;
            background: var(--white);
        }

        .testimonials .section-header {
            text-align: center;
            max-width: 600px;
            margin: 0 auto 64px;
        }

        .testimonials .section-header h2 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.3;
        }

        .testimonial-list {
            max-width: 760px;
            margin: 0 auto;
        }

        .testimonial-item {
            padding: 40px 0;
            border-bottom: 1px solid var(--border);
        }

        .testimonial-item:first-child {
            border-top: 1px solid var(--border);
        }

        .testimonial-item blockquote {
            margin: 0;
            position: relative;
            padding-left: 56px;
        }

        .testimonial-item blockquote::before {
            content: '\201C';
            position: absolute;
            left: 0;
            top: -12px;
            font-size: 72px;
            font-family: Georgia, serif;
            color: var(--primary);
            line-height: 1;
            opacity: 0.3;
        }

        .testimonial-item blockquote p {
            font-size: 19px;
            line-height: 1.8;
            color: var(--text-main);
            font-weight: 400;
        }

        .testimonial-meta {
            margin-top: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testimonial-meta .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 700;
            font-size: 15px;
        }

        .testimonial-meta .name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
        }

        .testimonial-meta .role {
            font-size: 13px;
            color: var(--text-weak);
        }

        /* Latest List */
        .latest-section {
            padding: var(--space-section) 0;
            background: var(--bg);
        }

        .latest-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 48px;
            border-bottom: 1px solid var(--border);
            padding-bottom: 24px;
        }

        .latest-head h2 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.2;
        }

        .latest-head p {
            color: var(--text-sub);
            font-size: 15px;
            max-width: 420px;
        }

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

        .latest-item {
            padding: 28px 0;
            border-bottom: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 32px;
            transition: transform 0.25s ease;
        }

        .latest-item:hover {
            transform: translateX(4px);
        }

        .latest-item-left h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .latest-item-left h3 a {
            color: inherit;
        }

        .latest-item-left h3 a:hover {
            color: var(--accent);
        }

        .latest-item-left p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
            max-width: 600px;
        }

        .latest-item-right {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }

        .latest-tag {
            display: inline-block;
            padding: 3px 12px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            border-radius: 20px;
            white-space: nowrap;
        }

        .latest-time {
            font-size: 14px;
            color: var(--text-weak);
            white-space: nowrap;
        }

        .latest-empty {
            padding: 80px 20px;
            text-align: center;
            color: var(--text-weak);
            border-bottom: 1px solid var(--border);
        }

        .latest-empty i {
            display: block;
            font-size: 32px;
            margin-bottom: 16px;
            color: var(--border);
        }

        .latest-empty p {
            font-size: 15px;
        }

        /* CTA */
        .cta-section {
            padding: var(--space-section) 0;
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--primary-dark), var(--accent));
            opacity: 0.5;
        }

        .cta-inner {
            max-width: 680px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-inner h2 {
            font-size: 40px;
            font-weight: 700;
            color: var(--white);
            line-height: 1.3;
            margin-bottom: 18px;
        }

        .cta-inner p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
            margin-bottom: 40px;
        }

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

        .cta-actions .btn-outline {
            border-color: var(--white);
            color: var(--white);
        }

        .cta-actions .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            color: var(--white);
        }

        /* FAQ */
        .faq-section {
            padding: var(--space-section) 0;
            background: var(--white);
        }

        .faq-header {
            text-align: center;
            max-width: 600px;
            margin: 0 auto 56px;
        }

        .faq-header h2 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .faq-header p {
            color: var(--text-sub);
            font-size: 16px;
        }

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

        .faq-item {
            border-bottom: 1px solid var(--border);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-q {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 24px 16px;
            cursor: pointer;
            transition: background-color 0.25s ease;
            background: none;
            width: 100%;
            text-align: left;
        }

        .faq-q:hover {
            background: rgba(245, 243, 239, 0.5);
        }

        .faq-num {
            font-family: var(--font-mono);
            font-size: 16px;
            color: var(--primary);
            font-weight: 600;
            min-width: 32px;
        }

        .faq-q .faq-question {
            flex: 1;
            font-size: 17px;
            font-weight: 500;
            color: var(--text-main);
            transition: color 0.25s ease;
        }

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

        .faq-icon {
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-weak);
            transition: transform 0.3s ease;
            font-size: 18px;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-a {
            padding: 0 16px 24px 68px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-sub);
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-item.open .faq-a {
            max-height: 400px;
        }

        /* Footer */
        .site-footer {
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 64px 0 32px;
        }

        .footer-top {
            display: flex;
            justify-content: space-between;
            gap: 60px;
            padding-bottom: 48px;
            border-bottom: 1px solid var(--border);
        }

        .footer-brand {
            max-width: 280px;
        }

        .footer-brand .footer-logo {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
        }

        .footer-links {
            display: flex;
            gap: 80px;
        }

        .footer-col h4 {
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--text-main);
            margin-bottom: 18px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-sub);
            padding: 6px 0;
            transition: color 0.25s ease;
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .footer-bottom a {
            color: var(--text-sub);
        }

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

        /* Breadcrumb */
        .breadcrumb {
            padding: 140px 0 0;
            background: var(--white);
        }

        .breadcrumb .container {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: var(--text-weak);
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border);
        }

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

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

        .breadcrumb .sep {
            color: var(--border);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 44px;
            }

            .hero .container {
                gap: 40px;
            }

            .main-nav {
                gap: 24px;
            }

            .main-nav a {
                font-size: 14px;
            }

            .pain-points .container {
                gap: 40px;
            }

            .solution-row {
                gap: 40px;
            }

            .stats-grid {
                gap: 20px;
            }

            .stat-number {
                font-size: 48px;
            }
        }

        @media (max-width: 768px) {
            .hero {
                padding-top: 140px;
                padding-bottom: 56px;
            }

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

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

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

            .hero-visual {
                width: 100%;
            }

            .hero-visual .visual-frame img {
                height: 280px;
            }

            .main-nav {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .header-cta {
                display: none;
            }

            .pain-points .container {
                flex-direction: column;
            }

            .pain-points-left,
            .pain-points-right {
                flex: 1;
            }

            .solution-row,
            .solution-row.reverse {
                flex-direction: column;
                gap: 32px;
            }

            .solution-img img {
                height: 240px;
            }

            .stats-grid {
                flex-wrap: wrap;
            }

            .stat-item {
                flex: 1 1 45%;
                padding: 20px;
            }

            .stat-item:not(:last-child)::after {
                display: none;
            }

            .stat-number {
                font-size: 40px;
            }

            .latest-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .latest-item-right {
                flex-direction: row-reverse;
                justify-content: flex-start;
                width: 100%;
            }

            .footer-top {
                flex-direction: column;
                gap: 40px;
            }

            .footer-links {
                gap: 40px;
                flex-wrap: wrap;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            :root {
                --space-section: 64px;
            }

            .container {
                padding-left: 18px;
                padding-right: 18px;
            }

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

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

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

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

            .solution-header h2 {
                font-size: 28px;
            }

            .latest-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }

            .latest-head h2 {
                font-size: 28px;
            }

            .latest-item-left h3 {
                font-size: 17px;
            }

            .faq-a {
                padding-left: 20px;
            }

            .faq-q {
                align-items: flex-start;
            }

            .faq-num {
                min-width: 24px;
            }

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

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

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

/* roulang page: article */
:root {
            --primary: #0F3D33;
            --primary-dark: #092A23;
            --primary-light: #E2EDE8;
            --accent: #B8862D;
            --accent-light: #F4E8D2;
            --bg: #F5F3EF;
            --white: #FFFFFF;
            --text: #1F1F1D;
            --text-light: #5F5F5A;
            --text-weak: #8A8A85;
            --border: #E3E0D9;
            --shadow: 0 2px 12px rgba(31, 31, 29, 0.06);
            --shadow-hover: 0 8px 28px rgba(31, 31, 29, 0.10);
            --radius: 2px;
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            font-size: 17px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

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

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

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        .container-narrow {
            max-width: 980px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--border);
            height: 76px;
            display: flex;
            align-items: center;
            transition: height 0.3s ease, box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            height: 60px;
            box-shadow: 0 1px 8px rgba(31, 31, 29, 0.04);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo {
            display: flex;
            align-items: baseline;
            gap: 6px;
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .logo:hover {
            opacity: 0.82;
        }

        .logo .logo-sub {
            font-size: 13px;
            font-weight: 400;
            color: var(--text-light);
            letter-spacing: 0.12em;
            text-transform: uppercase;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 36px;
            margin-left: 48px;
        }

        .main-nav a {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            padding: 8px 0;
            letter-spacing: 0.02em;
        }

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

        .main-nav a.active {
            color: var(--primary);
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 0;
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--primary);
            transform: translateX(-50%);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 40px;
            padding: 0 22px;
            border: 1px solid var(--primary);
            border-radius: var(--radius);
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            margin-left: auto;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .header-cta:hover {
            background: var(--primary-light);
            border-color: var(--primary);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 999;
            background: var(--primary);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 28px;
            transition: opacity 0.3s ease;
        }

        .mobile-menu.active {
            display: flex;
        }

        .mobile-menu .mobile-close {
            position: absolute;
            top: 24px;
            right: 28px;
            background: none;
            border: none;
            font-size: 32px;
            color: #fff;
            cursor: pointer;
            line-height: 1;
            padding: 4px 8px;
        }

        .mobile-menu .mobile-nav {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 24px;
        }

        .mobile-menu .mobile-nav a {
            color: rgba(255, 255, 255, 0.9);
            font-size: 22px;
            font-weight: 500;
            letter-spacing: 0.04em;
            padding: 8px 16px;
        }

        .mobile-menu .mobile-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 4px;
        }

        .mobile-menu .mobile-cta {
            margin-top: 8px;
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: 4px;
            padding: 10px 32px;
        }

        .breadcrumb-wrap {
            padding: 28px 0 8px;
            border-bottom: 1px solid var(--border);
            background: var(--bg);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-weak);
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .sep {
            color: #c8c5bf;
        }

        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
        }

        .article-main {
            padding: 56px 0 72px;
        }

        .article-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 4px;
            padding: 48px 56px 56px;
            box-shadow: var(--shadow);
        }

        .article-header {
            margin-bottom: 36px;
        }

        .article-header h1 {
            font-size: 34px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 16px;
            max-width: 900px;
            letter-spacing: -0.02em;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 20px;
        }

        .article-meta i {
            margin-right: 4px;
            color: var(--accent);
        }

        .article-meta .meta-category {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--primary-light);
            color: var(--primary);
            padding: 3px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
        }

        .article-summary {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
            border-left: 3px solid var(--accent);
            padding-left: 18px;
            margin: 20px 0 0;
        }

        .article-header-divider {
            border: none;
            border-top: 1px solid var(--border);
            margin: 0;
        }

        .article-body {
            padding-top: 36px;
            font-size: 17px;
            line-height: 1.9;
            color: var(--text);
        }

        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 40px 0 16px;
            color: var(--text);
            letter-spacing: -0.01em;
            position: relative;
            padding-bottom: 8px;
        }

        .article-body h2::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 36px;
            height: 2px;
            background: var(--accent);
        }

        .article-body h3 {
            font-size: 19px;
            font-weight: 600;
            margin: 32px 0 12px;
            color: var(--text);
        }

        .article-body p {
            margin: 0 0 20px;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 20px;
            padding-left: 24px;
        }

        .article-body li {
            margin-bottom: 6px;
        }

        .article-body blockquote {
            margin: 28px 0;
            padding: 18px 24px;
            background: var(--primary-light);
            border-left: 3px solid var(--primary);
            border-radius: 0 4px 4px 0;
            color: var(--text-light);
            font-style: normal;
        }

        .article-body blockquote p {
            margin: 0;
        }

        .article-body img {
            margin: 28px auto;
            border: 1px solid var(--border);
            border-radius: 4px;
            box-shadow: var(--shadow);
        }

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

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

        .article-body strong {
            font-weight: 600;
            color: var(--text);
        }

        .article-body code {
            background: var(--primary-light);
            color: var(--primary-dark);
            padding: 2px 8px;
            border-radius: 3px;
            font-size: 0.9em;
        }

        .article-body pre {
            background: var(--primary-dark);
            color: #e8e6e1;
            padding: 20px;
            border-radius: 4px;
            overflow-x: auto;
            font-size: 14px;
            line-height: 1.6;
            margin: 24px 0;
        }

        .article-body pre code {
            background: none;
            color: inherit;
            padding: 0;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
        }

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

        .article-body table th {
            background: var(--primary-light);
            font-weight: 600;
            color: var(--primary-dark);
        }

        .related-section {
            margin-top: 48px;
        }

        .related-section .section-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 24px;
            letter-spacing: -0.01em;
        }

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

        .related-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 4px;
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary-light);
        }

        .related-card .related-img {
            width: 100%;
            height: 0;
            padding-bottom: calc(100% * 7 / 16);
            position: relative;
            overflow: hidden;
            background: var(--primary-light);
        }

        .related-card .related-img img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

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

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

        .related-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            margin: 0 0 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .related-time {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: auto;
        }

        .article-pager {
            display: flex;
            justify-content: space-between;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            gap: 16px;
        }

        .pager-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-light);
            padding: 8px 0;
            position: relative;
        }

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

        .pager-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 2px;
            width: 0;
            height: 1px;
            background: var(--primary);
            transition: width 0.3s ease;
        }

        .pager-link:hover::after {
            width: 100%;
        }

        .not-found {
            text-align: center;
            padding: 80px 24px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 4px;
        }

        .not-found p {
            font-size: 20px;
            color: var(--text-light);
            margin-bottom: 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 28px;
            border-radius: 2px;
            font-size: 15px;
            font-weight: 500;
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition);
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: var(--shadow-hover);
            transform: translateY(-1px);
        }

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

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

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

        .btn-light:hover {
            background: var(--accent-light);
        }

        .cta-section {
            background: var(--primary);
            padding: 72px 0;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px;
            letter-spacing: -0.02em;
        }

        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 680px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

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

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

        .cta-actions .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .site-footer {
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 56px 0 24px;
        }

        .footer-top {
            display: flex;
            justify-content: space-between;
            gap: 48px;
            padding-bottom: 36px;
            border-bottom: 1px solid var(--border);
            flex-wrap: wrap;
        }

        .footer-brand {
            max-width: 360px;
        }

        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

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

        .footer-links {
            display: flex;
            gap: 64px;
        }

        .footer-col h4 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-weak);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin: 0 0 16px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-light);
            padding: 4px 0;
        }

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

        .footer-bottom {
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-weak);
            margin: 0;
        }

        .footer-bottom a {
            color: var(--text-light);
        }

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

        @media (max-width: 1024px) {
            .main-nav {
                gap: 24px;
                margin-left: 24px;
            }

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

        @media (max-width: 768px) {
            body {
                font-size: 15.5px;
            }

            .container {
                padding: 0 18px;
            }

            .site-header {
                height: 64px;
            }

            .site-header.scrolled {
                height: 56px;
            }

            .logo {
                font-size: 22px;
            }

            .logo .logo-sub {
                font-size: 11px;
            }

            .main-nav {
                display: none;
            }

            .header-cta {
                display: none;
            }

            .nav-toggle {
                display: inline-flex;
                margin-left: auto;
            }

            .article-card {
                padding: 32px 22px 36px;
            }

            .article-header h1 {
                font-size: 26px;
                line-height: 1.35;
            }

            .article-summary {
                font-size: 15px;
            }

            .article-body {
                font-size: 16px;
                line-height: 1.85;
            }

            .article-body h2 {
                font-size: 21px;
            }

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

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

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

            .footer-top {
                flex-direction: column;
                gap: 32px;
            }

            .footer-links {
                gap: 40px;
            }

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

            .article-pager {
                flex-direction: column;
                gap: 8px;
            }
        }

        @media (max-width: 640px) {
            .related-grid {
                grid-template-columns: 1fr;
            }

            .cta-actions {
                flex-direction: column;
                align-items: center;
            }

            .cta-actions .btn {
                width: 100%;
                max-width: 280px;
            }

            .breadcrumb {
                font-size: 12px;
            }

            .article-meta {
                gap: 12px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }

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

            .article-card {
                padding: 24px 16px 28px;
            }

            .related-card .related-content {
                padding: 16px;
            }
        }

/* roulang page: category1 */
:root {
    --primary: #0F3D33;
    --primary-dark: #092A23;
    --primary-light: #E2EDE8;
    --accent: #B8862D;
    --accent-light: #F4E8D2;
    --bg: #F5F3EF;
    --white: #FFFFFF;
    --dark: #1F1F1D;
    --gray: #5F5F5A;
    --light-gray: #8A8A85;
    --border: #E3E0D9;
    --shadow: rgba(31,31,29,0.06);
    --shadow-hover: rgba(31,31,29,0.10);
    --radius: 4px;
    --font-main: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-main);
    background: var(--bg);
    color: var(--dark);
    line-height: 1.8;
    font-size: 17px;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: all 0.25s ease; }
button { cursor: pointer; font-family: inherit; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.section-pad { padding: 100px 0; }
.section-head { margin-bottom: 56px; }
.section-head h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--dark);
    line-height: 1.3;
    letter-spacing: -0.01em;
}
.section-head p {
    font-size: 15px;
    color: var(--gray);
    margin-top: 12px;
}

/* ===== Header ===== */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(245,243,239,0.96);
    border-bottom: 1px solid var(--border);
    transition: all 0.3s ease;
}
.site-header.scrolled {
    background: rgba(255,255,255,0.97);
    box-shadow: 0 4px 30px var(--shadow);
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
    transition: height 0.3s ease;
}
.site-header.scrolled .container { height: 60px; }
.logo {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.01em;
    line-height: 1;
    display: flex;
    align-items: baseline;
    transition: opacity 0.2s;
}
.logo:hover { opacity: 0.85; }
.logo-sub {
    font-size: 13px;
    font-weight: 500;
    color: var(--gray);
    margin-left: 6px;
    letter-spacing: 0.04em;
}
.main-nav { display: flex; gap: 36px; }
.main-nav a {
    font-size: 15px;
    font-weight: 500;
    color: var(--gray);
    position: relative;
    padding: 6px 0;
    transition: color 0.2s;
}
.main-nav a:hover { color: var(--primary); }
.main-nav a.active { color: var(--primary); font-weight: 600; }
.main-nav a.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--primary);
}
.header-cta {
    font-size: 14px;
    font-weight: 600;
    color: var(--white);
    background: var(--primary);
    padding: 9px 22px;
    border-radius: 3px;
    transition: all 0.25s;
    box-shadow: 0 2px 10px rgba(15,61,51,0.18);
}
.header-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 18px rgba(15,61,51,0.28);
    color: var(--white);
}
.nav-toggle {
    display: none;
    font-size: 22px;
    color: var(--primary);
    background: none;
    border: none;
    padding: 8px;
}

/* ===== Mobile Menu ===== */
.mobile-menu {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--primary);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 10px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s ease;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu a {
    color: var(--white);
    font-size: 26px;
    font-weight: 600;
    padding: 14px 24px;
    transition: color 0.2s, transform 0.2s;
}
.mobile-menu a:hover { color: var(--accent-light); transform: translateX(4px); }
.mobile-menu .close-menu {
    position: absolute;
    top: 24px; right: 28px;
    color: var(--white);
    font-size: 30px;
    background: none;
    border: none;
    line-height: 1;
    opacity: 0.85;
}
.mobile-menu .close-menu:hover { opacity: 1; }
.mobile-menu .mm-cta {
    margin-top: 18px;
    background: var(--accent);
    color: var(--white);
    padding: 12px 40px;
    border-radius: 4px;
    font-size: 17px;
    font-weight: 600;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 28px;
}
.breadcrumb a { color: var(--gray); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb i { font-size: 11px; color: var(--light-gray); }
.breadcrumb span { color: var(--primary); font-weight: 500; }

/* ===== Category Hero ===== */
.category-hero {
    padding: 170px 0 90px;
    background-color: var(--primary);
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}
.category-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(9,42,35,0.98) 0%, rgba(15,61,51,0.88) 45%, rgba(15,61,51,0.6) 100%);
}
.category-hero .container { position: relative; z-index: 2; }
.hero-inner {
    display: flex;
    align-items: center;
    gap: 60px;
}
.hero-text { flex: 1.15; }
.hero-visual { flex: 0.85; }
.hero-tag {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    letter-spacing: 0.02em;
    color: var(--accent-light);
    margin-bottom: 16px;
    font-weight: 400;
}
.hero-tag::before {
    content: '';
    width: 16px;
    height: 2px;
    background: var(--accent);
    display: inline-block;
}
.category-hero h1 {
    font-size: 46px;
    font-weight: 700;
    color: var(--white);
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}
.hero-desc {
    font-size: 16px;
    line-height: 1.9;
    color: rgba(255,255,255,0.85);
    max-width: 440px;
    margin-bottom: 36px;
    font-weight: 400;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 600;
    padding: 12px 30px;
    border-radius: 3px;
    border: 1px solid transparent;
    transition: all 0.25s ease;
    line-height: 1.4;
}
.btn:focus-visible {
    outline: 2px solid rgba(184,134,45,0.5);
    outline-offset: 2px;
}
.btn-primary {
    background: var(--white);
    color: var(--primary);
    border-color: var(--white);
}
.btn-primary:hover {
    background: var(--primary-light);
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}
.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.6);
}
.btn-outline:hover {
    background: rgba(255,255,255,0.12);
    border-color: var(--white);
    transform: translateY(-2px);
}
.btn-accent {
    background: var(--accent);
    color: var(--white);
    border-color: var(--accent);
}
.btn-accent:hover {
    background: #a0721f;
    border-color: #a0721f;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(184,134,45,0.3);
}
.hero-visual img {
    width: 100%;
    border-radius: 2px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.14);
}

/* ===== Stats Section ===== */
.stats-section {
    background: var(--white);
    padding: 60px 0;
    border-bottom: 1px solid var(--border);
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
}
.stat-item {
    text-align: center;
    position: relative;
    padding: 10px 20px;
}
.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 48px;
    background: var(--border);
}
.stat-num {
    display: block;
    font-size: 42px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.1;
    letter-spacing: -0.02em;
    font-family: Georgia, "Times New Roman", serif;
}
.stat-label {
    display: block;
    font-size: 13px;
    color: var(--gray);
    margin-top: 8px;
    letter-spacing: 0.03em;
}

/* ===== Feature Rows ===== */
.features-section {
    padding: 100px 0 40px;
}
.feature-row {
    display: flex;
    align-items: center;
    gap: 64px;
    margin-bottom: 80px;
}
.feature-row.reverse {
    flex-direction: row-reverse;
}
.feature-img {
    flex: 1;
    overflow: hidden;
    border-radius: 2px;
    border: 1px solid var(--border);
    box-shadow: 0 8px 30px var(--shadow);
    transition: box-shadow 0.35s, transform 0.35s;
}
.feature-img:hover {
    box-shadow: 0 16px 40px var(--shadow-hover);
    transform: translateY(-3px);
}
.feature-img img { width: 100%; }
.feature-text { flex: 1; }
.feature-num {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    font-family: Georgia, serif;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: 10px;
}
.feature-text h3 {
    font-size: 26px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
    line-height: 1.35;
    letter-spacing: -0.01em;
}
.feature-text p {
    font-size: 16px;
    line-height: 1.9;
    color: var(--gray);
    margin-bottom: 20px;
    max-width: 440px;
}
.feature-divider {
    width: 40px;
    height: 1px;
    background: var(--accent);
    margin-bottom: 20px;
}
.text-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    border-bottom: 1px solid var(--primary);
    padding-bottom: 2px;
    transition: all 0.25s;
}
.text-link i { font-size: 12px; transition: transform 0.25s; }
.text-link:hover {
    color: var(--accent);
    border-color: var(--accent);
}
.text-link:hover i { transform: translateX(3px); }

/* ===== Scenarios Timeline ===== */
.scenarios-section {
    background: var(--white);
    padding: 100px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.timeline {
    max-width: 860px;
    margin: 0 auto;
    position: relative;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 120px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--border);
}
.timeline-item {
    display: flex;
    gap: 48px;
    padding: 36px 0;
    position: relative;
}
.timeline-marker {
    width: 120px;
    flex-shrink: 0;
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    text-align: right;
    padding-right: 24px;
    position: relative;
}
.timeline-marker::after {
    content: '';
    position: absolute;
    right: -5px;
    top: 8px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--accent);
    border: 2px solid var(--white);
    box-shadow: 0 0 0 3px rgba(184,134,45,0.2);
}
.timeline-content { padding-left: 24px; }
.timeline-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}
.timeline-content p {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.8;
    max-width: 540px;
}

/* ===== Latest List ===== */
.latest-section { padding: 100px 0; }
.latest-list {
    max-width: 860px;
    margin: 0 auto;
}
.list-item {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 32px;
    padding: 28px 0;
    border-bottom: 1px solid var(--border);
    transition: background 0.2s;
}
.list-item:first-child { border-top: 1px solid var(--border); }
.list-main { flex: 1; }
.list-main a {
    font-size: 19px;
    font-weight: 600;
    color: var(--dark);
    line-height: 1.5;
    transition: color 0.2s, transform 0.2s;
    display: inline-block;
}
.list-main a:hover {
    color: var(--accent);
    transform: translateX(4px);
}
.list-main p {
    font-size: 14px;
    color: var(--gray);
    margin-top: 6px;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.list-meta {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
    font-size: 13px;
    color: var(--light-gray);
    padding-top: 6px;
}
.tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 12px;
    font-weight: 500;
    padding: 3px 12px;
    border-radius: 12px;
    letter-spacing: 0.02em;
}
.empty-state {
    text-align: center;
    padding: 60px 20px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--white);
}
.empty-state i {
    font-size: 36px;
    color: var(--light-gray);
    margin-bottom: 14px;
    opacity: 0.5;
}
.empty-state p {
    font-size: 15px;
    color: var(--gray);
}

/* ===== FAQ ===== */
.faq-section {
    background: var(--white);
    padding: 100px 0;
    border-top: 1px solid var(--border);
}
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px 8px;
    background: none;
    border: none;
    text-align: left;
    transition: all 0.25s;
}
.faq-num {
    font-family: Georgia, serif;
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    width: 36px;
    flex-shrink: 0;
}
.faq-question span:nth-child(2) {
    flex: 1;
    font-size: 17px;
    font-weight: 500;
    color: var(--dark);
    transition: color 0.2s;
}
.faq-question i {
    font-size: 16px;
    color: var(--light-gray);
    transition: transform 0.3s, color 0.3s;
}
.faq-item.active .faq-question span:nth-child(2) { color: var(--primary); }
.faq-item.active .faq-question i {
    transform: rotate(45deg);
    color: var(--primary);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}
.faq-answer p {
    padding: 0 8px 24px 64px;
    font-size: 15px;
    color: var(--gray);
    line-height: 1.9;
}

/* ===== CTA ===== */
.cta-section {
    background: var(--primary);
    padding: 90px 0;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.06);
}
.cta-inner {
    max-width: 680px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}
.cta-inner h2 {
    font-size: 34px;
    color: var(--white);
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.3;
    margin-bottom: 14px;
}
.cta-inner p {
    font-size: 15px;
    color: rgba(255,255,255,0.75);
    margin-bottom: 36px;
}
.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}
.btn-white {
    background: var(--white);
    color: var(--primary);
    border-color: var(--white);
}
.btn-white:hover {
    background: var(--primary-light);
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}
.btn-white-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.6);
}
.btn-white-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--white);
    transform: translateY(-2px);
}

/* ===== Footer ===== */
.site-footer {
    background: var(--bg);
    border-top: 1px solid var(--border);
    padding: 70px 0 30px;
}
.footer-top {
    display: flex;
    justify-content: space-between;
    gap: 60px;
    margin-bottom: 50px;
}
.footer-brand { flex: 1; }
.footer-logo {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}
.footer-brand p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.8;
    max-width: 360px;
}
.footer-links {
    display: flex;
    gap: 80px;
}
.footer-col h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--light-gray);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 18px;
}
.footer-col a {
    display: block;
    font-size: 14px;
    color: var(--gray);
    padding: 6px 0;
    transition: color 0.2s, transform 0.2s;
}
.footer-col a:hover {
    color: var(--primary);
    transform: translateX(2px);
}
.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 13px;
    color: var(--light-gray);
}
.footer-bottom a {
    color: var(--light-gray);
    transition: color 0.2s;
}
.footer-bottom a:hover { color: var(--primary); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .main-nav { gap: 22px; }
    .hero-inner { gap: 36px; }
    .category-hero h1 { font-size: 38px; }
    .stat-num { font-size: 34px; }
}
@media (max-width: 768px) {
    .main-nav { display: none; }
    .header-cta { display: none; }
    .nav-toggle { display: block; }
    .section-pad { padding: 64px 0; }
    .category-hero { padding: 130px 0 60px; }
    .hero-inner { flex-direction: column; }
    .hero-text { flex: none; }
    .hero-visual { flex: none; width: 100%; }
    .category-hero h1 { font-size: 32px; }
    .hero-desc { font-size: 15px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-item:nth-child(2)::after { display: none; }
    .stat-item { padding: 20px; }
    .feature-row { flex-direction: column; gap: 40px; margin-bottom: 60px; }
    .feature-row.reverse { flex-direction: column; }
    .timeline::before { left: 0; }
    .timeline-item { flex-direction: column; gap: 12px; padding-left: 24px; }
    .timeline-marker { width: auto; text-align: left; padding-right: 0; }
    .timeline-marker::after { right: auto; left: -29px; top: 8px; }
    .timeline-content { padding-left: 0; }
    .list-item { flex-direction: column; gap: 12px; }
    .footer-top { flex-direction: column; gap: 40px; }
    .footer-links { gap: 40px; flex-wrap: wrap; }
    .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
}
@media (max-width: 520px) {
    .container { padding-left: 18px; padding-right: 18px; }
    .category-hero h1 { font-size: 28px; }
    .cta-inner h2 { font-size: 26px; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .stat-num { font-size: 30px; }
    .faq-question { gap: 12px; }
    .faq-num { width: 28px; font-size: 15px; }
    .faq-answer p { padding-left: 40px; }
    .hero-actions .btn { width: 100%; justify-content: center; }
}

/* roulang page: category2 */
:root {
            --primary: #0F3D33;
            --primary-dark: #092A23;
            --primary-light: #E2EDE8;
            --accent: #B8862D;
            --accent-light: #F4E8D2;
            --bg: #F5F3EF;
            --white: #FFFFFF;
            --text: #1F1F1D;
            --text-secondary: #5F5F5A;
            --text-muted: #8A8A85;
            --border: #E3E0D9;
            --shadow: rgba(31, 31, 29, 0.06);
            --shadow-hover: rgba(31, 31, 29, 0.10);
            --radius: 2px;
            --radius-btn: 4px;
            --container: 1200px;
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "SF Mono", "Menlo", "Consolas", monospace;
            --transition: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 17px;
            -webkit-font-smoothing: antialiased;
        }

        ::selection {
            background: var(--primary);
            color: #fff;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        .grid-container {
            max-width: var(--container);
            padding-left: 24px;
            padding-right: 24px;
        }

        .grid-margin-x {
            margin-left: -12px;
            margin-right: -12px;
        }

        .grid-margin-x>.cell {
            padding-left: 12px;
            padding-right: 12px;
        }

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

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 76px;
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid var(--border);
            transition: height var(--transition), box-shadow var(--transition), background var(--transition);
        }

        .site-header.scrolled {
            height: 60px;
            box-shadow: 0 2px 20px rgba(31, 31, 29, 0.05);
        }

        .site-header .container {
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }

        .logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            display: inline-flex;
            align-items: baseline;
            gap: 4px;
            letter-spacing: 0.02em;
            transition: opacity var(--transition);
        }

        .logo-sub {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            letter-spacing: 0.08em;
        }

        .logo:hover {
            opacity: 0.85;
            color: var(--primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 36px;
            margin: 0 auto;
        }

        .main-nav a {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 8px 0;
            letter-spacing: 0.01em;
        }

        .main-nav a::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 2px;
            transform: translateX(-50%);
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--primary);
            opacity: 0;
            transition: opacity var(--transition);
        }

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

        .main-nav a.active {
            color: var(--primary);
        }

        .main-nav a.active::after {
            opacity: 1;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            height: 40px;
            padding: 0 20px;
            border: 1px solid var(--primary);
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            transition: background var(--transition), color var(--transition);
        }

        .header-cta:hover {
            background: var(--primary);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--primary);
            cursor: pointer;
            padding: 4px;
        }

        .mobile-menu {
            position: fixed;
            inset: 0;
            background: var(--primary);
            z-index: 200;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 36px;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }

        .mobile-menu.open {
            opacity: 1;
            visibility: visible;
        }

        .mobile-menu a {
            color: #fff;
            font-size: 26px;
            font-weight: 600;
        }

        .mobile-menu a:hover {
            color: var(--accent-light);
        }

        .mobile-menu .mobile-slug {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            letter-spacing: 0.04em;
        }

        .mobile-menu-close {
            position: absolute;
            top: 24px;
            right: 24px;
            background: none;
            border: none;
            color: #fff;
            font-size: 28px;
            cursor: pointer;
            padding: 8px;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 170px 0 90px;
            background-color: var(--bg);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center right / cover no-repeat;
            opacity: 0.05;
            z-index: 0;
        }

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

        .hero-breadcrumb {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.02em;
            margin-bottom: 28px;
        }

        .hero-breadcrumb a {
            color: var(--text-muted);
        }

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

        .hero-breadcrumb .sep {
            margin: 0 10px;
            color: var(--border);
        }

        .hero-kicker {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            font-weight: 400;
            letter-spacing: 0.02em;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

        .hero-kicker::before {
            content: "";
            width: 16px;
            height: 1px;
            background: var(--primary);
            display: inline-block;
        }

        .hero h1 {
            font-size: 46px;
            line-height: 1.2;
            font-weight: 700;
            color: var(--text);
            max-width: 900px;
            margin-bottom: 22px;
            letter-spacing: 0.01em;
        }

        .hero-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.9;
            margin-bottom: 40px;
        }

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

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 44px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 500;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all var(--transition);
            outline: none;
            background: none;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(15, 61, 51, 0.2);
            outline-offset: 2px;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(15, 61, 51, 0.15);
        }

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

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

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

        .btn-white:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
        }

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

        .btn-accent:hover {
            background: var(--accent-light);
        }

        .btn .arrow {
            transition: transform var(--transition);
        }

        .btn:hover .arrow {
            transform: translateX(3px);
        }

        /* ===== Sections ===== */
        .section {
            padding: 100px 0;
            border-bottom: 1px solid var(--border);
        }

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

        .section-head .kicker {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            letter-spacing: 0.02em;
            color: var(--accent);
            margin-bottom: 16px;
            font-weight: 500;
        }

        .section-head .kicker::before {
            content: "";
            width: 16px;
            height: 1px;
            background: var(--accent);
            display: inline-block;
        }

        .section-head h2 {
            font-size: 30px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }

        .section-head .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 480px;
        }

        /* ===== Scope ===== */
        .scope-intro {
            padding-right: 24px;
        }

        .scope-intro h3 {
            font-size: 22px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 16px;
            color: var(--text);
        }

        .scope-intro p {
            color: var(--text-secondary);
            font-size: 15.5px;
            line-height: 1.8;
            max-width: 320px;
        }

        .scope-list .scope-item {
            display: flex;
            gap: 24px;
            padding: 26px 0;
            border-bottom: 1px solid var(--border);
        }

        .scope-list .scope-item:first-child {
            border-top: 1px solid var(--border);
        }

        .scope-num {
            font-family: var(--font-num);
            font-size: 14px;
            color: var(--accent);
            line-height: 28px;
            min-width: 36px;
            font-weight: 600;
        }

        .scope-item-body h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }

        .scope-item-body p {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 460px;
        }

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

        .steps-row {
            row-gap: 32px;
        }

        .step-col {
            border-top: 1px solid var(--border);
            padding-top: 32px;
        }

        .step-num {
            font-family: var(--font-num);
            font-size: 40px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
            opacity: 0.85;
            margin-bottom: 22px;
            display: block;
        }

        .step-col h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text);
        }

        .step-col p {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== Guide ===== */
        .guide-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: 100%;
            transition: all var(--transition);
        }

        .guide-card:hover {
            border-color: var(--primary-light);
            box-shadow: 0 8px 24px var(--shadow-hover);
            transform: translateY(-2px);
        }

        .guide-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-bottom: 1px solid var(--border);
        }

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

        .guide-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
        }

        .guide-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }

        .guide-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            margin-top: 16px;
            transition: gap var(--transition);
        }

        .guide-link:hover {
            color: var(--accent);
            gap: 10px;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-q {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 26px 8px;
            cursor: pointer;
            font-size: 17px;
            font-weight: 500;
            color: var(--text);
            transition: color var(--transition);
            background: none;
            border: none;
            text-align: left;
            width: 100%;
        }

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

        .faq-q .faq-index {
            font-family: var(--font-num);
            font-size: 18px;
            color: var(--primary);
            font-weight: 600;
            min-width: 32px;
        }

        .faq-q .faq-toggle {
            margin-left: auto;
            width: 18px;
            height: 18px;
            position: relative;
            flex-shrink: 0;
            transition: transform var(--transition);
        }

        .faq-q .faq-toggle::before,
        .faq-q .faq-toggle::after {
            content: "";
            position: absolute;
            background: var(--primary);
        }

        .faq-q .faq-toggle::before {
            width: 100%;
            height: 1.5px;
            top: 50%;
            transform: translateY(-50%);
        }

        .faq-q .faq-toggle::after {
            width: 1.5px;
            height: 100%;
            left: 50%;
            transform: translateX(-50%);
        }

        .faq-item.open .faq-q {
            color: var(--primary);
        }

        .faq-item.open .faq-toggle {
            transform: rotate(45deg);
        }

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

        .faq-item.open .faq-a {
            max-height: 500px;
        }

        .faq-a-inner {
            padding: 0 8px 26px 60px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 720px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            color: #fff;
            padding: 100px 0;
        }

        .cta-inner {
            max-width: 680px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-inner h2 {
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .cta-inner p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 36px;
            line-height: 1.8;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: var(--white);
            padding: 60px 0 24px;
            border-top: 1px solid var(--border);
        }

        .footer-brand .footer-logo {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 380px;
        }

        .footer-links {
            display: flex;
            gap: 60px;
            justify-content: flex-end;
        }

        .footer-col h4 {
            font-size: 13px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--text);
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-secondary);
            padding: 6px 0;
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 28px;
            margin-top: 40px;
            border-top: 1px solid var(--border);
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            font-size: 13px;
            color: var(--text-muted);
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 22px;
            }

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

            .footer-links {
                gap: 40px;
            }
        }

        @media (max-width: 768px) {
            .grid-container {
                padding-left: 18px;
                padding-right: 18px;
            }

            .container {
                padding: 0 18px;
            }

            .main-nav {
                display: none;
            }

            .header-cta {
                display: none;
            }

            .nav-toggle {
                display: block;
            }

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

            .hero h1 {
                font-size: 34px;
            }

            .hero-desc {
                font-size: 15.5px;
            }

            .section {
                padding: 64px 0;
            }

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

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

            .scope-intro {
                padding-right: 0;
            }

            .steps-row {
                row-gap: 28px;
            }

            .guide-body {
                padding: 20px 22px 24px;
            }

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

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

            .footer-links {
                justify-content: flex-start;
                gap: 32px;
                flex-wrap: wrap;
            }

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

            .faq-q {
                font-size: 15.5px;
                padding: 22px 4px;
                gap: 14px;
            }

            .faq-a-inner {
                padding-left: 46px;
                font-size: 14.5px;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 28px;
            }

            .hero-kicker {
                font-size: 13px;
            }

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

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

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

            .scope-item {
                flex-direction: column;
                gap: 10px;
            }

            .scope-num {
                min-width: auto;
            }

            .faq-a-inner {
                padding-left: 0;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0F3D33;
            --primary-dark: #092A23;
            --primary-light: #E2EDE8;
            --accent: #B8862D;
            --accent-light: #F4E8D2;
            --bg: #F5F3EF;
            --white: #FFFFFF;
            --text: #1F1F1D;
            --text-sub: #5F5F5A;
            --text-weak: #8A8A85;
            --border: #E3E0D9;
            --shadow-1: rgba(31, 31, 29, 0.06);
            --shadow-2: rgba(31, 31, 29, 0.10);
            --radius: 2px;
            --transition: 0.25s ease;
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-serif: Georgia, "Times New Roman", serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

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

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            border-bottom: 1px solid transparent;
            height: 76px;
            transition: height 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .site-header.scrolled {
            height: 60px;
            border-color: var(--border);
            box-shadow: 0 4px 20px var(--shadow-1);
        }

        .site-header .container {
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: baseline;
            gap: 4px;
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .logo:hover {
            color: var(--primary);
            opacity: 0.85;
        }

        .logo-sub {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-sub);
            letter-spacing: 0.08em;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 36px;
        }

        .main-nav a {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 6px 0;
        }

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

        .main-nav a.active {
            color: var(--primary);
        }

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

        .header-cta {
            display: inline-flex;
            align-items: center;
            height: 40px;
            padding: 0 22px;
            border: 1px solid var(--primary);
            border-radius: var(--radius);
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: background var(--transition), color var(--transition), box-shadow var(--transition);
            white-space: nowrap;
        }

        .header-cta:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(15, 61, 51, 0.18);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            border: 1px solid var(--border);
            border-radius: var(--radius);
        }

        /* ===== Mobile Menu ===== */
        .mobile-menu {
            position: fixed;
            inset: 0;
            z-index: 200;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }

        .mobile-menu.open {
            opacity: 1;
            visibility: visible;
        }

        .mobile-close {
            position: absolute;
            top: 24px;
            right: 28px;
            font-size: 36px;
            color: #fff;
            line-height: 1;
            opacity: 0.85;
            transition: opacity 0.2s;
        }

        .mobile-close:hover {
            opacity: 1;
        }

        .mobile-nav {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 28px;
        }

        .mobile-nav a {
            font-size: 24px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.88);
            padding: 6px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.15);
            transition: color 0.2s, border-color 0.2s;
        }

        .mobile-nav a.active {
            color: #fff;
            border-color: #fff;
        }

        .mobile-nav a:hover {
            color: #fff;
        }

        .mobile-nav .mobile-cta {
            margin-top: 16px;
            padding: 12px 40px;
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius);
            font-size: 18px;
            font-weight: 600;
            color: #fff;
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 180px 0 110px;
            background: linear-gradient(120deg, rgba(9, 42, 35, 0.93), rgba(15, 61, 51, 0.82)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            color: #fff;
        }

        .page-hero .hero-eyebrow {
            font-size: 14px;
            font-weight: 400;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .page-hero .hero-eyebrow::before {
            content: "";
            width: 32px;
            height: 2px;
            background: var(--accent);
        }

        .page-hero h1 {
            font-size: 46px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.02em;
            color: #fff;
            max-width: 800px;
            margin-bottom: 18px;
        }

        .page-hero .hero-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.78);
            max-width: 560px;
            line-height: 1.9;
        }

        .page-hero .hero-meta {
            margin-top: 36px;
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
        }

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

        .hero-meta-item i {
            color: var(--accent);
            font-size: 16px;
        }

        /* ===== Section Common ===== */
        .section {
            padding: 100px 0;
        }

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

        .section-head {
            margin-bottom: 56px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .section-tag::before {
            content: "";
            width: 20px;
            height: 2px;
            background: var(--accent);
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }

        .section-title em {
            font-style: normal;
            color: var(--primary);
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 640px;
            line-height: 1.9;
        }

        /* ===== Help Service ===== */
        .help-service {
            padding: 100px 0;
        }

        .help-service .grid-x {
            align-items: stretch;
        }

        .help-service-left {
            padding-right: 48px;
        }

        .help-service-left .section-desc {
            margin-top: 20px;
        }

        .help-service-left .help-note {
            margin-top: 32px;
            padding: 20px 24px;
            background: var(--primary-light);
            border-left: 3px solid var(--accent);
            font-size: 14px;
            line-height: 1.8;
            color: var(--primary-dark);
        }

        .help-service-right {
            border-top: 1px solid var(--border);
        }

        .help-item {
            display: flex;
            gap: 24px;
            padding: 28px 0;
            border-bottom: 1px solid var(--border);
            transition: padding-left 0.3s ease;
        }

        .help-item:hover {
            padding-left: 8px;
        }

        .help-item .help-num {
            font-family: var(--font-serif);
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
            min-width: 48px;
            opacity: 0.75;
        }

        .help-item .help-content {
            flex: 1;
        }

        .help-item .help-content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .help-item .help-content p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
            max-width: 520px;
        }

        /* ===== Help Flow ===== */
        .help-flow {
            background: var(--primary);
            padding: 100px 0;
            color: #fff;
        }

        .help-flow .section-title {
            color: #fff;
        }

        .help-flow .section-desc {
            color: rgba(255, 255, 255, 0.72);
        }

        .flow-steps {
            margin-top: 56px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            position: relative;
        }

        .flow-step {
            padding: 0 24px;
            position: relative;
        }

        .flow-step:not(:last-child)::after {
            content: "";
            position: absolute;
            top: 24px;
            right: 0;
            width: 1px;
            height: 48px;
            background: rgba(255, 255, 255, 0.15);
        }

        .flow-step-num {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 700;
            color: var(--accent);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
        }

        .flow-step-num::after {
            content: "";
            width: 32px;
            height: 1px;
            background: rgba(255, 255, 255, 0.3);
        }

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

        .flow-step p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.8;
        }

        /* ===== FAQ ===== */
        .help-faq {
            padding: 100px 0;
        }

        .faq-list {
            max-width: 820px;
            border-top: 1px solid var(--border);
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
        }

        .faq-item .faq-q {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 22px 0;
            cursor: pointer;
            transition: color 0.25s;
        }

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

        .faq-item .faq-q .faq-num {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            min-width: 40px;
            opacity: 0.6;
            line-height: 1;
        }

        .faq-item .faq-q .faq-title {
            flex: 1;
            font-size: 17px;
            font-weight: 500;
            color: inherit;
            line-height: 1.5;
        }

        .faq-item .faq-q .faq-icon {
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--text-sub);
            transition: transform 0.35s ease, color 0.25s;
        }

        .faq-item .faq-q .faq-icon i {
            line-height: 1;
        }

        .faq-item.active .faq-q {
            color: var(--primary);
        }

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

        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0;
        }

        .faq-item.active .faq-a {
            max-height: 300px;
            padding: 0 0 24px 60px;
        }

        .faq-item .faq-a p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.9;
            max-width: 660px;
        }

        /* ===== Resource ===== */
        .help-resource {
            padding: 100px 0;
            background: var(--bg);
        }

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

        .resource-card {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: 4px;
            padding: 0;
            overflow: hidden;
            box-shadow: 0 2px 12px var(--shadow-1);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .resource-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 28px var(--shadow-2);
            border-color: var(--primary-light);
        }

        .resource-card .card-img {
            position: relative;
            aspect-ratio: 16 / 6;
            overflow: hidden;
        }

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

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

        .resource-card .card-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 61, 51, 0.18), transparent);
        }

        .resource-card .card-body {
            padding: 28px 28px 32px;
        }

        .resource-card .card-body .card-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            background: var(--accent-light);
            padding: 4px 12px;
            border-radius: 2px;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

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

        .resource-card .card-body p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .resource-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: gap 0.25s ease;
        }

        .resource-card .card-link:hover {
            gap: 12px;
            color: var(--accent);
        }

        /* ===== CTA ===== */
        .help-cta {
            background: var(--primary);
            padding: 90px 0;
            text-align: center;
            color: #fff;
        }

        .help-cta .cta-inner {
            max-width: 680px;
            margin: 0 auto;
        }

        .help-cta h2 {
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .help-cta p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.72);
            line-height: 1.8;
            margin-bottom: 36px;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 46px;
            padding: 0 32px;
            background: #fff;
            color: var(--primary);
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius);
            transition: background 0.25s, color 0.25s, transform 0.25s, box-shadow 0.25s;
        }

        .btn-primary:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 46px;
            padding: 0 32px;
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius);
            transition: border-color 0.25s, background 0.25s, transform 0.25s;
        }

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

        .btn-outline i {
            transition: transform 0.25s;
        }

        .btn-outline:hover i {
            transform: translateX(3px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg);
            border-top: 1px solid var(--border);
            padding: 64px 0 32px;
        }

        .footer-top {
            display: flex;
            justify-content: space-between;
            gap: 60px;
            flex-wrap: wrap;
            padding-bottom: 48px;
            border-bottom: 1px solid var(--border);
        }

        .footer-brand {
            max-width: 360px;
        }

        .footer-logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
        }

        .footer-links {
            display: flex;
            gap: 72px;
        }

        .footer-col h4 {
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-sub);
            padding: 6px 0;
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 28px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-weak);
        }

        .footer-bottom a {
            color: var(--text-sub);
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 20px;
            }

            .main-nav a {
                font-size: 14px;
            }

            .page-hero {
                padding: 150px 0 80px;
            }

            .flow-steps {
                grid-template-columns: 1fr 1fr;
                row-gap: 40px;
            }

            .flow-step:nth-child(2)::after {
                display: none;
            }

            .help-service-left {
                padding-right: 24px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }

            .main-nav,
            .header-cta {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .page-hero {
                padding: 130px 0 70px;
            }

            .page-hero h1 {
                font-size: 34px;
            }

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

            .section {
                padding: 64px 0;
            }

            .help-service,
            .help-flow,
            .help-faq,
            .help-resource,
            .help-cta {
                padding: 64px 0;
            }

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

            .help-service-left {
                padding-right: 0;
                margin-bottom: 40px;
            }

            .help-item {
                gap: 16px;
                padding: 22px 0;
            }

            .help-item .help-num {
                font-size: 24px;
                min-width: 36px;
            }

            .flow-steps {
                grid-template-columns: 1fr;
                gap: 0;
            }

            .flow-step {
                padding: 20px 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }

            .flow-step:last-child {
                border-bottom: none;
            }

            .flow-step:not(:last-child)::after {
                display: none;
            }

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

            .footer-top {
                flex-direction: column;
                gap: 40px;
            }

            .footer-links {
                gap: 48px;
            }

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

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 28px;
            }

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

            .faq-item .faq-q {
                gap: 14px;
                padding: 18px 0;
            }

            .faq-item .faq-q .faq-num {
                font-size: 20px;
                min-width: 30px;
            }

            .faq-item .faq-q .faq-title {
                font-size: 15px;
            }

            .faq-item.active .faq-a {
                padding-left: 44px;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .btn-primary,
            .btn-outline {
                width: 100%;
                max-width: 280px;
                justify-content: center;
            }
        }