/* roulang page: index */
:root {
            --primary: #1F3D38;
            --primary-dark: #162F2B;
            --secondary: #2E6B62;
            --accent: #C96F4A;
            --deep: #1B2C28;
            --warm-bg: #F6F5F1;
            --warm-gray: #EEEDE8;
            --text-ink: #26302D;
            --text-sub: #4C5A55;
            --text-muted: #7B8782;
            --border-line: #E3E0D9;
            --divider: #EDEBE5;
            --radius-btn: 8px;
            --radius-card: 12px;
            --radius-img: 16px;
            --shadow-card: 0 1px 2px rgba(27, 44, 40, 0.04);
            --shadow-card-hover: 0 8px 24px rgba(27, 44, 40, 0.08);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

        a {
            color: inherit;
            text-decoration: none;
        }

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

        input {
            font-family: inherit;
            outline: none;
        }

        .container-site {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (min-width: 768px) {
            .container-site {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 72px;
            background: rgba(246, 245, 241, 0.88);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-line);
            transition: box-shadow 0.2s ease;
        }
        .site-header:hover {
            box-shadow: 0 2px 12px rgba(27, 44, 40, 0.04);
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background-color: var(--primary);
            color: #F6F5F1;
            font-size: 18px;
            font-weight: 800;
            border-radius: 6px;
            letter-spacing: 0;
            box-shadow: 0 1px 4px rgba(27, 44, 40, 0.2);
        }
        .brand-name {
            font-size: 1.125rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
        }
        .nav-link {
            position: relative;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            padding: 8px 2px;
            transition: color 0.2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 240px;
            height: 38px;
            padding: 0 12px;
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: 8px;
            color: var(--text-muted);
            font-size: 13px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .search-box:hover {
            border-color: var(--secondary);
        }
        .search-box:focus-within {
            border-color: var(--secondary);
            box-shadow: 0 0 0 2px rgba(46, 107, 98, 0.12);
        }
        .search-box kbd {
            margin-left: auto;
            font-family: var(--font-mono);
            font-size: 11px;
            color: var(--text-muted);
            background: var(--warm-gray);
            padding: 2px 6px;
            border-radius: 4px;
            border: 1px solid var(--border-line);
        }
        .login-link {
            font-size: 14px;
            color: var(--text-sub);
            transition: color 0.2s ease;
        }
        .login-link:hover {
            color: var(--primary);
        }
        .menu-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border-line);
            background: #fff;
            color: var(--text-ink);
            transition: border-color 0.2s ease;
        }
        .menu-btn:hover {
            border-color: var(--secondary);
        }
        .menu-btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* Mobile menu */
        .mobile-menu {
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: #fff;
            z-index: 99;
            padding: 24px 20px 40px;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            gap: 4px;
            border-top: 1px solid var(--divider);
        }
        .mobile-menu.hidden {
            display: none;
        }
        .mobile-link {
            padding: 14px 12px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-ink);
            border-radius: 8px;
            transition: background 0.2s ease, color 0.2s ease;
        }
        .mobile-link:hover {
            background: var(--warm-gray);
            color: var(--primary);
        }
        .mobile-link.active {
            background: rgba(46, 107, 98, 0.1);
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            height: 44px;
            padding: 0 24px;
            background-color: var(--primary);
            color: #F6F5F1;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            transition: background-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
            box-shadow: 0 1px 2px rgba(27, 44, 40, 0.08);
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(27, 44, 40, 0.18);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-sm {
            height: 38px;
            padding: 0 18px;
            font-size: 13px;
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            height: 44px;
            padding: 0 24px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: #F6F5F1;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            transition: background 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-1px);
        }
        .btn-ghost:focus-visible {
            outline: 2px solid #F6F5F1;
            outline-offset: 2px;
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 46px;
            padding: 0 28px;
            background-color: var(--accent);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: background-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
            border: none;
        }
        .btn-accent:hover {
            background-color: #b35a3a;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(201, 111, 74, 0.35);
        }
        .btn-accent:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.12);
        }
        .btn-accent:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            background-color: var(--deep);
            padding: 88px 0 72px;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: 6%;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            border: 1.5px solid rgba(201, 111, 74, 0.28);
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            top: -60px;
            right: 13%;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            border: 1px solid rgba(201, 111, 74, 0.18);
            pointer-events: none;
        }
        .hero-tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 6px 14px;
            border-radius: 100px;
            font-size: 13px;
            color: rgba(246, 245, 241, 0.9);
            margin-bottom: 24px;
            letter-spacing: 0.02em;
        }
        .hero-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }
        .hero-title {
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            color: #F6F5F1;
            margin-bottom: 20px;
            max-width: 12em;
        }
        .hero-subtitle {
            font-size: 16px;
            line-height: 1.75;
            color: rgba(246, 245, 241, 0.72);
            max-width: 560px;
            margin-bottom: 36px;
        }
        .hero-image-wrap {
            position: relative;
            border-radius: var(--radius-img);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.15);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
        }
        .hero-image-wrap::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(31, 61, 56, 0.18);
            z-index: 1;
        }
        .hero-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        /* ===== Trustbar ===== */
        .trustbar {
            background: var(--deep);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 28px 0 36px;
        }
        .trust-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
            padding: 0 4px;
            border-right: 1px solid rgba(255, 255, 255, 0.1);
            min-height: 56px;
        }
        .trust-item:last-child {
            border-right: none;
        }
        .trust-item strong {
            font-size: 22px;
            font-weight: 700;
            color: #F6F5F1;
            letter-spacing: -0.01em;
        }
        .trust-item span {
            font-size: 13px;
            color: rgba(246, 245, 241, 0.55);
        }

        /* ===== Section ===== */
        .section {
            padding: 96px 0;
        }
        @media (max-width: 1024px) {
            .section {
                padding: 72px 0;
            }
        }
        @media (max-width: 640px) {
            .section {
                padding: 56px 0;
            }
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--secondary);
            background: rgba(46, 107, 98, 0.1);
            padding: 4px 12px;
            border-radius: 100px;
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }
        .section-tag-light {
            color: rgba(246, 245, 241, 0.9);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }
        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-ink);
            letter-spacing: -0.01em;
        }
        .section-title.text-white {
            color: #F6F5F1;
        }

        /* ===== Story ===== */
        .story-section {
            padding: 96px 0;
        }
        @media (max-width: 1024px) {
            .story-section {
                padding: 72px 0;
            }
        }
        .story-text {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 20px;
            max-width: 56em;
        }
        .story-points {
            list-style: none;
            padding: 0;
            margin-top: 28px;
        }
        .story-points li {
            position: relative;
            padding-left: 28px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-ink);
            margin-bottom: 12px;
        }
        .story-points li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 7px;
            width: 14px;
            height: 14px;
            background: rgba(46, 107, 98, 0.15);
            border-radius: 4px;
            border: 1px solid var(--secondary);
        }
        .story-image-wrap {
            position: relative;
            border-radius: var(--radius-img);
            overflow: hidden;
            border: 1px solid var(--border-line);
            box-shadow: var(--shadow-card);
        }
        .story-image-wrap::before {
            content: '';
            position: absolute;
            inset: 0;
            border: 1px solid rgba(31, 61, 56, 0.06);
            border-radius: var(--radius-img);
            z-index: 1;
            pointer-events: none;
        }
        .story-image {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        /* ===== Card ===== */
        .card {
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            border-color: var(--secondary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .card-img {
            overflow: hidden;
            aspect-ratio: 16/10;
            background: var(--warm-gray);
        }
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.2s ease-out;
        }
        .card:hover .card-img img {
            transform: scale(1.03);
        }
        .card-body {
            padding: 22px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-ink);
            margin: 12px 0 8px;
            line-height: 1.4;
        }
        .card-body p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .card-horizontal {
            flex-direction: row;
            min-height: 300px;
        }
        .card-horizontal .card-img-side {
            width: 50%;
            overflow: hidden;
            background: var(--warm-gray);
        }
        .card-horizontal .card-img-side img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.2s ease-out;
        }
        .card-horizontal:hover .card-img-side img {
            transform: scale(1.03);
        }
        .card-horizontal .card-content {
            width: 50%;
            padding: 32px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .card-horizontal .card-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-ink);
            margin: 12px 0 10px;
        }
        .card-horizontal .card-content p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 20px;
            flex: 1;
        }

        /* ===== Badge ===== */
        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--text-sub);
            background: var(--warm-gray);
            padding: 4px 10px;
            border-radius: 6px;
            line-height: 1.4;
            white-space: nowrap;
        }
        .badge-primary {
            background: rgba(46, 107, 98, 0.12);
            color: var(--secondary);
        }

        /* ===== Arrow link ===== */
        .arrow-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--secondary);
            transition: color 0.2s ease;
        }
        .arrow-link .arrow-icon {
            transition: transform 0.2s ease;
        }
        .arrow-link:hover {
            color: var(--primary);
        }
        .arrow-link:hover .arrow-icon {
            transform: translateX(4px);
        }
        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--secondary);
            transition: color 0.2s ease;
        }
        .text-link:hover {
            color: var(--primary);
        }

        /* ===== News ===== */
        .news-section {
            padding: 96px 0;
            background: var(--warm-bg);
        }
        @media (max-width: 1024px) {
            .news-section {
                padding: 72px 0;
            }
        }
        .news-list {
            border-top: 1px solid var(--border-line);
        }
        .news-row {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 24px 12px;
            border-bottom: 1px solid var(--divider);
            transition: background 0.2s ease, padding-left 0.2s ease;
        }
        .news-row:hover {
            background: #fff;
            padding-left: 20px;
        }
        .news-row time {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--text-muted);
            min-width: 100px;
            white-space: nowrap;
        }
        .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-ink);
            margin-bottom: 4px;
            line-height: 1.5;
            transition: color 0.2s ease;
        }
        .news-row:hover .news-body h3 {
            color: var(--primary);
        }
        .news-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }
        .news-arrow {
            color: var(--text-muted);
            transition: transform 0.2s ease, color 0.2s ease;
        }
        .news-row:hover .news-arrow {
            color: var(--secondary);
            transform: translateX(4px);
        }
        .empty-state {
            padding: 60px 24px;
            text-align: center;
            border-bottom: 1px solid var(--divider);
            background: #fff;
            border-radius: 12px;
            margin-top: 24px;
        }
        .empty-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--warm-gray);
            color: var(--text-muted);
            font-size: 22px;
            margin-bottom: 12px;
        }
        .empty-state p {
            font-size: 14px;
            color: var(--text-sub);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 96px 0;
            background: var(--deep);
        }
        @media (max-width: 1024px) {
            .faq-section {
                padding: 72px 0;
            }
        }
        .faq-list {
            margin-top: 24px;
        }
        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 22px 4px;
            text-align: left;
            font-size: 15px;
            font-weight: 500;
            color: #F6F5F1;
            transition: color 0.2s ease;
            background: none;
            border: none;
        }
        .faq-question:hover {
            color: #fff;
        }
        .faq-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.2);
            font-size: 18px;
            color: rgba(246, 245, 241, 0.7);
            transition: transform 0.3s ease, color 0.3s ease, border-color 0.3s ease;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--accent);
            border-color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 4px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 24px;
        }
        .faq-answer p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(246, 245, 241, 0.72);
            max-width: 60em;
        }

        /* ===== Testimonials ===== */
        .testimonials-section {
            padding: 96px 0;
            background: var(--warm-gray);
        }
        @media (max-width: 1024px) {
            .testimonials-section {
                padding: 72px 0;
            }
        }
        .metric {
            padding: 20px;
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: 12px;
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.2s ease, transform 0.2s ease;
        }
        .metric:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .metric strong {
            display: block;
            font-size: 30px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .metric span {
            font-size: 13px;
            color: var(--text-muted);
        }
        .testimonial-card {
            background: #fff;
            border: 1px solid var(--border-line);
            border-radius: 16px;
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
            position: relative;
        }
        .quote-mark {
            font-family: Georgia, serif;
            font-size: 56px;
            line-height: 1;
            color: var(--accent);
            opacity: 0.5;
            margin-bottom: 12px;
        }
        .testimonial-card>p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-ink);
            margin-bottom: 24px;
            max-width: 34em;
        }
        .quote-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .author-avatar {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #F6F5F1;
            font-size: 16px;
            font-weight: 600;
        }
        .quote-author strong {
            display: block;
            font-size: 14px;
            color: var(--text-ink);
        }
        .quote-author span {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 88px 0;
            background: var(--deep);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .cta-title {
            font-size: clamp(1.75rem, 3vw, 2.4rem);
            font-weight: 700;
            color: #F6F5F1;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .cta-desc {
            font-size: 15px;
            color: rgba(246, 245, 241, 0.65);
            max-width: 520px;
            margin: 0 auto 36px;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 640px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input {
            flex: 1;
            min-width: 180px;
            height: 46px;
            padding: 0 16px;
            font-size: 14px;
            color: var(--text-ink);
            background: #fff;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .cta-form input::placeholder {
            color: var(--text-muted);
        }
        .cta-form input:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 2px rgba(46, 107, 98, 0.25);
        }
        .cta-privacy {
            font-size: 12px;
            color: rgba(246, 245, 241, 0.4);
            margin-top: 20px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--deep);
            color: rgba(246, 245, 241, 0.65);
            font-size: 14px;
        }
        .footer-title {
            font-size: 14px;
            font-weight: 600;
            color: #F6F5F1;
            margin-bottom: 16px;
        }
        .footer-link {
            display: block;
            padding: 5px 0;
            color: rgba(246, 245, 241, 0.6);
            font-size: 13px;
            transition: color 0.2s ease;
            position: relative;
        }
        .footer-link:hover {
            color: #F6F5F1;
        }
        .footer-link:hover::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 2px;
            width: 100%;
            height: 1px;
            background: currentColor;
        }
        .footer-desc {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(246, 245, 241, 0.55);
            margin-top: 8px;
            max-width: 26em;
        }
        .footer-contact {
            display: block;
            font-size: 13px;
            color: rgba(246, 245, 241, 0.6);
            margin-bottom: 8px;
        }
        .footer-bottom {
            padding-top: 24px;
            margin-top: 28px;
            font-size: 13px;
            color: rgba(246, 245, 241, 0.35);
            text-align: center;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .card-horizontal {
                flex-direction: column;
            }
            .card-horizontal .card-img-side,
            .card-horizontal .card-content {
                width: 100%;
            }
            .card-horizontal .card-img-side {
                aspect-ratio: 16/9;
            }
            .trust-item strong {
                font-size: 18px;
            }
        }
        @media (max-width: 768px) {
            .hero {
                padding: 64px 0 48px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form input {
                width: 100%;
            }
            .btn-accent {
                width: 100%;
            }
        }
        @media (max-width: 640px) {
            .container-site {
                padding-left: 20px;
                padding-right: 20px;
            }
            .story-section,
            .featured-section,
            .faq-section,
            .testimonials-section,
            .cta-section {
                padding: 56px 0;
            }
            .trust-item strong {
                font-size: 16px;
            }
            .news-row {
                flex-wrap: wrap;
                gap: 8px;
                padding: 20px 8px;
            }
            .news-row time {
                min-width: 100%;
                font-size: 12px;
            }
            .news-body h3 {
                font-size: 15px;
            }
            .news-body p {
                font-size: 13px;
            }
        }
        @media (max-width: 480px) {
            .trust-item span {
                font-size: 11px;
            }
            .metric strong {
                font-size: 22px;
            }
        }

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

/* roulang page: category1 */
:root {
        --primary: #1F3D38;
        --primary-dark: #162E2A;
        --secondary: #2E6B62;
        --accent: #C96F4A;
        --ink: #26302D;
        --ink-2: #4C5A55;
        --ink-3: #7B8782;
        --bg-warm: #F6F5F1;
        --bg-white: #FFFFFF;
        --bg-gray: #EEEDE8;
        --border: #E3E0D9;
        --line: #EDEBE5;
        --radius-btn: 8px;
        --radius-card: 12px;
        --radius-img: 16px;
        --shadow-card: 0 1px 2px rgba(27,44,40,0.04);
        --shadow-hover: 0 8px 24px rgba(27,44,40,0.08);
    }
    * , *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
        font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        background: var(--bg-warm);
        color: var(--ink);
        font-size: 16px;
        line-height: 1.75;
        -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; display: block; }
    a { text-decoration: none; color: inherit; }
    button { font-family: inherit; cursor: pointer; }
    input { font-family: inherit; }

    .container-site {
        max-width: 1280px;
        margin: 0 auto;
        padding-left: 32px;
        padding-right: 32px;
    }
    @media (max-width: 768px) {
        .container-site { padding-left: 20px; padding-right: 20px; }
    }

    .site-header {
        position: sticky;
        top: 0;
        z-index: 50;
        height: 72px;
        background: rgba(246,245,241,0.85);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid rgba(227,224,217,0.8);
    }
    .logo-mark {
        width: 34px;
        height: 34px;
        background: var(--primary);
        color: #F6F5F1;
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        font-weight: 700;
        letter-spacing: 0;
    }
    .brand-name {
        font-size: 18px;
        font-weight: 800;
        color: var(--ink);
        letter-spacing: -0.01em;
    }
    .nav-link {
        position: relative;
        font-size: 14.5px;
        font-weight: 500;
        color: var(--ink-2);
        padding: 6px 2px;
        transition: color 0.2s;
    }
    .nav-link:hover { color: var(--ink); }
    .nav-link.active { color: var(--ink); font-weight: 600; }
    .nav-link.active::after {
        content: "";
        position: absolute;
        left: 0;
        right: 0;
        bottom: -2px;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
    }
    .search-box {
        height: 38px;
        padding: 0 12px;
        background: #EAE8E2;
        border: 1px solid transparent;
        border-radius: 8px;
        align-items: center;
        gap: 8px;
        color: var(--ink-3);
        font-size: 13px;
        cursor: text;
        transition: border-color 0.2s, background 0.2s;
    }
    .search-box:hover { background: #E4E1DA; }
    .search-box:focus-within {
        border-color: var(--secondary);
        background: #FFFFFF;
    }
    .search-box kbd {
        font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
        font-size: 11px;
        background: #FFFFFF;
        border: 1px solid var(--border);
        border-radius: 4px;
        padding: 1px 6px;
        color: var(--ink-3);
    }
    .btn-primary {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 42px;
        padding: 0 22px;
        background: var(--primary);
        color: #FFFFFF;
        font-size: 14px;
        font-weight: 600;
        border-radius: var(--radius-btn);
        border: none;
        transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
    }
    .btn-primary:hover {
        background: var(--primary-dark);
        transform: translateY(-1px);
        box-shadow: 0 6px 16px rgba(31,61,56,0.18);
    }
    .btn-primary:active {
        transform: translateY(0);
        box-shadow: inset 0 2px 4px rgba(0,0,0,0.15);
    }
    .btn-primary:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 2px;
    }
    .btn-sm { height: 36px; padding: 0 16px; font-size: 13.5px; }
    .btn-accent {
        background: var(--accent);
        color: #fff;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 44px;
        padding: 0 24px;
        border-radius: var(--radius-btn);
        font-size: 14.5px;
        font-weight: 600;
        border: none;
        transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
    }
    .btn-accent:hover {
        background: #B85D3A;
        transform: translateY(-1px);
        box-shadow: 0 8px 20px rgba(201,111,74,0.25);
    }
    .btn-accent:active {
        transform: translateY(0);
        box-shadow: inset 0 2px 4px rgba(0,0,0,0.15);
    }
    .btn-outline {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 42px;
        padding: 0 20px;
        background: transparent;
        color: var(--primary);
        border: 1px solid rgba(255,255,255,0.45);
        border-radius: var(--radius-btn);
        font-size: 14px;
        font-weight: 500;
        transition: background 0.2s, border-color 0.2s;
    }
    .btn-outline:hover {
        background: rgba(255,255,255,0.08);
        border-color: rgba(255,255,255,0.7);
    }
    .login-link {
        font-size: 14px;
        font-weight: 500;
        color: var(--ink-2);
        transition: color 0.2s;
    }
    .login-link:hover { color: var(--primary); }

    .category-hero {
        position: relative;
        padding: 96px 0 64px;
        background-size: cover;
        background-position: center;
        overflow: hidden;
    }
    .category-hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(100deg, rgba(27,44,40,0.94) 40%, rgba(31,61,56,0.72) 100%);
    }
    .category-hero-inner {
        position: relative;
        z-index: 2;
        display: grid;
        grid-template-columns: 1.1fr 0.9fr;
        gap: 60px;
        align-items: center;
    }
    .category-hero h1 {
        font-size: clamp(2.2rem, 4vw, 3.2rem);
        font-weight: 800;
        line-height: 1.2;
        letter-spacing: -0.02em;
        color: #FFFFFF;
    }
    .category-hero h1 span {
        color: #E8B09A;
    }
    .category-hero .hero-desc {
        font-size: 16px;
        line-height: 1.8;
        color: rgba(255,255,255,0.82);
        max-width: 34em;
        margin-top: 18px;
    }
    .hero-stat-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
        margin-top: 40px;
        padding-top: 32px;
        border-top: 1px solid rgba(255,255,255,0.14);
        max-width: 520px;
    }
    .hero-stat-item .stat-num {
        font-size: 28px;
        font-weight: 800;
        color: #FFFFFF;
        font-family: "Inter", system-ui, sans-serif;
        line-height: 1.2;
    }
    .hero-stat-item .stat-label {
        font-size: 13px;
        color: rgba(255,255,255,0.62);
        margin-top: 4px;
    }
    .category-hero .hero-cta-row {
        display: flex;
        align-items: center;
        gap: 16px;
        margin-top: 36px;
    }
    .timeline-section {
        padding: 96px 0;
    }
    .section-tag {
        display: inline-block;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.08em;
        color: var(--secondary);
        background: rgba(46,107,98,0.1);
        padding: 5px 14px;
        border-radius: 6px;
        margin-bottom: 16px;
    }
    .section-title {
        font-size: clamp(1.75rem, 3vw, 2.4rem);
        font-weight: 700;
        line-height: 1.25;
        color: var(--ink);
        letter-spacing: -0.01em;
    }
    .section-sub {
        font-size: 15.5px;
        color: var(--ink-2);
        max-width: 58ch;
        margin-top: 12px;
    }
    .timeline-wrap {
        margin-top: 56px;
        position: relative;
    }
    .timeline-wrap::before {
        content: "";
        position: absolute;
        left: 152px;
        top: 0;
        bottom: 0;
        width: 1px;
        background: var(--border);
    }
    @media (max-width: 768px) {
        .timeline-wrap::before { left: 8px; }
    }
    .timeline-item {
        position: relative;
        display: grid;
        grid-template-columns: 120px 32px 1fr;
        gap: 0;
        padding-bottom: 36px;
    }
    @media (max-width: 768px) {
        .timeline-item {
            grid-template-columns: 68px 16px 1fr;
            padding-left: 0;
        }
    }
    .timeline-date {
        font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
        font-size: 14px;
        font-weight: 500;
        color: var(--ink-3);
        padding-top: 6px;
        text-align: right;
        padding-right: 16px;
    }
    @media (max-width: 768px) {
        .timeline-date { font-size: 13px; text-align: left; padding-left: 0; padding-right: 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    }
    .timeline-dot {
        width: 12px;
        height: 12px;
        border: 3px solid var(--secondary);
        background: var(--bg-warm);
        border-radius: 50%;
        margin-top: 12px;
        margin-left: -5px;
        position: relative;
        z-index: 2;
    }
    @media (max-width: 768px) {
        .timeline-dot { width: 10px; height: 10px; margin-left: 0; }
    }
    .timeline-body {
        background: #FFFFFF;
        border: 1px solid var(--border);
        border-radius: var(--radius-card);
        padding: 24px 28px;
        box-shadow: var(--shadow-card);
        transition: box-shadow 0.2s, border-color 0.2s, transform 0.2s;
    }
    .timeline-body:hover {
        box-shadow: var(--shadow-hover);
        border-color: rgba(46,107,98,0.35);
        transform: translateY(-2px);
    }
    .timeline-body h3 {
        font-size: 18px;
        font-weight: 700;
        color: var(--ink);
        margin-bottom: 6px;
    }
    .timeline-body p {
        font-size: 14.5px;
        color: var(--ink-2);
        line-height: 1.75;
        margin-bottom: 12px;
    }
    .timeline-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    .timeline-tags .tag {
        font-size: 12.5px;
        background: var(--bg-gray);
        color: var(--ink-2);
        padding: 3px 10px;
        border-radius: 6px;
    }
    .feature-band {
        background: var(--primary);
        padding: 72px 0;
    }
    .feature-band .section-title { color: #FFFFFF; }
    .feature-band .section-sub { color: rgba(255,255,255,0.7); }
    .feature-band .section-tag { background: rgba(255,255,255,0.12); color: #E9C9BA; }
    .feature-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
        margin-top: 48px;
    }
    @media (max-width: 1024px) {
        .feature-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 640px) {
        .feature-grid { grid-template-columns: 1fr; }
    }
    .feature-card {
        background: rgba(255,255,255,0.06);
        border: 1px solid rgba(255,255,255,0.1);
        border-radius: var(--radius-card);
        padding: 32px 28px;
        transition: background 0.2s, border-color 0.2s;
    }
    .feature-card:hover {
        background: rgba(255,255,255,0.1);
        border-color: rgba(255,255,255,0.2);
    }
    .feature-card .feature-icon {
        width: 44px;
        height: 44px;
        border-radius: 10px;
        background: rgba(46,107,98,0.25);
        display: flex;
        align-items: center;
        justify-content: center;
        color: #B9DDD4;
        margin-bottom: 20px;
    }
    .feature-card h3 {
        font-size: 17px;
        font-weight: 700;
        color: #FFFFFF;
        margin-bottom: 8px;
    }
    .feature-card p {
        font-size: 14.5px;
        line-height: 1.7;
        color: rgba(255,255,255,0.66);
    }
    .scenario-section {
        padding: 96px 0;
        background: #FFFFFF;
    }
    .scenario-layout {
        display: grid;
        grid-template-columns: 0.85fr 1.15fr;
        gap: 64px;
        align-items: start;
        margin-top: 48px;
    }
    @media (max-width: 1024px) {
        .scenario-layout { grid-template-columns: 1fr; gap: 40px; }
    }
    .scenario-img-wrap {
        position: relative;
        border-radius: var(--radius-img);
        overflow: hidden;
    }
    .scenario-img-wrap::after {
        content: "";
        position: absolute;
        inset: 0;
        background: rgba(31,61,56,0.06);
    }
    .scenario-img-wrap img {
        width: 100%;
        height: 100%;
        min-height: 360px;
        object-fit: cover;
    }
    .scenario-list {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }
    .scenario-item {
        border: 1px solid var(--border);
        border-radius: var(--radius-card);
        padding: 24px 26px;
        background: var(--bg-warm);
        transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
    }
    .scenario-item:hover {
        border-color: rgba(46,107,98,0.35);
        box-shadow: var(--shadow-hover);
        transform: translateY(-2px);
    }
    .scenario-item .scenario-num {
        font-family: "JetBrains Mono", monospace;
        font-size: 13px;
        font-weight: 600;
        color: var(--accent);
        letter-spacing: 0.05em;
    }
    .scenario-item h3 {
        font-size: 17px;
        font-weight: 700;
        color: var(--ink);
        margin: 6px 0 8px;
    }
    .scenario-item p {
        font-size: 14.5px;
        color: var(--ink-2);
        line-height: 1.7;
    }
    .faq-category {
        padding: 96px 0;
        background: var(--primary);
    }
    .faq-category .section-title { color: #FFFFFF; }
    .faq-category .section-sub { color: rgba(255,255,255,0.7); }
    .faq-category .section-tag { background: rgba(255,255,255,0.12); color: #E9C9BA; }
    .faq-list {
        max-width: 860px;
        margin: 48px auto 0;
    }
    .faq-item {
        border-bottom: 1px solid rgba(255,255,255,0.14);
    }
    .faq-item:first-child {
        border-top: 1px solid rgba(255,255,255,0.14);
    }
    .faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 20px;
        padding: 22px 4px;
        cursor: pointer;
        font-size: 16px;
        font-weight: 600;
        color: #FFFFFF;
        transition: color 0.2s;
    }
    .faq-question:hover { color: #E9C9BA; }
    .faq-question .faq-icon {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        border: 1px solid rgba(255,255,255,0.35);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        color: rgba(255,255,255,0.8);
        transition: transform 0.3s, background 0.2s;
        flex-shrink: 0;
    }
    .faq-item.open .faq-icon {
        transform: rotate(45deg);
        background: rgba(255,255,255,0.12);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        padding: 0 32px 0 4px;
        transition: max-height 0.3s ease, padding 0.3s ease;
        font-size: 15px;
        line-height: 1.75;
        color: rgba(255,255,255,0.72);
    }
    .faq-item.open .faq-answer {
        max-height: 300px;
        padding-bottom: 22px;
    }
    .cta-band {
        background: #1B2C28;
        padding: 80px 0;
        text-align: center;
    }
    .cta-band h2 {
        font-size: clamp(1.75rem, 3vw, 2.4rem);
        font-weight: 800;
        color: #FFFFFF;
        letter-spacing: -0.01em;
    }
    .cta-band p {
        font-size: 15.5px;
        color: rgba(255,255,255,0.65);
        margin: 14px auto 32px;
        max-width: 46ch;
    }
    .cta-form {
        display: flex;
        justify-content: center;
        gap: 12px;
        max-width: 560px;
        margin: 0 auto;
        flex-wrap: wrap;
    }
    .cta-form input {
        flex: 1;
        min-width: 200px;
        height: 44px;
        padding: 0 16px;
        border: 1px solid rgba(255,255,255,0.18);
        border-radius: 8px;
        background: rgba(255,255,255,0.08);
        color: #FFFFFF;
        font-size: 14px;
        outline: none;
        transition: border-color 0.2s, background 0.2s;
    }
    .cta-form input::placeholder { color: rgba(255,255,255,0.45); }
    .cta-form input:focus {
        border-color: var(--accent);
        background: rgba(255,255,255,0.12);
    }
    .privacy-note {
        margin-top: 18px;
        font-size: 13px;
        color: rgba(255,255,255,0.4);
    }
    .site-footer {
        background: #1B2C28;
        padding: 0 0 32px;
        color: rgba(255,255,255,0.7);
    }
    .footer-title {
        font-size: 15px;
        font-weight: 700;
        color: #FFFFFF;
        margin-bottom: 16px;
        letter-spacing: 0.03em;
    }
    .footer-link {
        display: block;
        font-size: 14px;
        color: rgba(255,255,255,0.6);
        margin-bottom: 10px;
        transition: color 0.2s;
    }
    .footer-link:hover {
        color: #FFFFFF;
        text-decoration: underline;
        text-underline-offset: 3px;
        text-decoration-color: rgba(255,255,255,0.4);
    }
    .footer-desc {
        font-size: 14px;
        line-height: 1.7;
        color: rgba(255,255,255,0.55);
    }
    .footer-contact {
        display: block;
        font-size: 14px;
        color: rgba(255,255,255,0.6);
        margin-bottom: 10px;
    }
    .footer-bottom {
        padding-top: 24px;
        margin-top: 32px;
        border-top: 1px solid rgba(255,255,255,0.08);
        font-size: 13px;
        color: rgba(255,255,255,0.4);
        text-align: center;
    }

    .menu-btn {
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--ink);
        background: transparent;
        border: 1px solid var(--border);
        border-radius: 8px;
        transition: background 0.2s;
    }
    .menu-btn:hover { background: var(--bg-gray); }

    .mobile-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #FFFFFF;
        border-bottom: 1px solid var(--border);
        padding: 20px;
        z-index: 60;
        display: flex;
        flex-direction: column;
        gap: 2px;
        box-shadow: 0 16px 32px rgba(27,44,40,0.08);
    }
    .mobile-menu a {
        padding: 12px 12px;
        border-radius: 8px;
        font-size: 15px;
        font-weight: 500;
        color: var(--ink-2);
        transition: background 0.15s, color 0.15s;
    }
    .mobile-menu a:hover { background: var(--bg-warm); color: var(--ink); }
    .mobile-menu a.active { background: rgba(46,107,98,0.08); color: var(--primary); font-weight: 600; }
    .mobile-menu .btn-primary { margin-top: 12px; }

    @media (max-width: 1024px) {
        .category-hero-inner { grid-template-columns: 1fr; gap: 40px; }
        .category-hero { padding: 72px 0 48px; }
        .hero-stat-grid { max-width: 100%; }
    }
    @media (max-width: 640px) {
        .hero-stat-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
        .hero-stat-item .stat-num { font-size: 21px; }
        .category-hero .hero-cta-row { flex-direction: column; align-items: flex-start; gap: 12px; }
        .cta-form { flex-direction: column; }
        .cta-form input { width: 100%; min-width: 0; }
        .timeline-section { padding: 72px 0; }
        .scenario-section { padding: 72px 0; }
        .faq-category { padding: 72px 0; }
        .cta-band { padding: 64px 0; }
        .btn-accent { width: 100%; }
    }

/* roulang page: article */
:root {
            --color-primary: #1F3D38;
            --color-secondary: #2E6B62;
            --color-accent: #C96F4A;
            --color-bg: #F6F5F1;
            --color-bg-white: #FFFFFF;
            --color-bg-dark: #1B2C28;
            --color-bg-gray: #EEEDE8;
            --color-text: #26302D;
            --color-text-secondary: #4C5A55;
            --color-text-muted: #7B8782;
            --color-border: #E3E0D9;
            --color-divider: #EDEBE5;
            --radius-btn: 8px;
            --radius-card: 12px;
            --radius-image: 16px;
            --radius-tag: 6px;
            --shadow-card: 0 1px 2px rgba(27, 44, 40, 0.04);
            --shadow-card-hover: 0 8px 24px rgba(27, 44, 40, 0.08);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            display: block;
            max-width: 100%;
            height: auto;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            background: none;
            border: none;
        }
        kbd {
            font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
        }
        .container-site {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }
        @media (max-width: 768px) {
            .container-site {
                padding-left: 20px;
                padding-right: 20px;
            }
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 72px;
            background: rgba(246, 245, 241, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
        }
        .logo-mark {
            width: 32px;
            height: 32px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-primary);
            color: #F6F5F1;
            border-radius: 6px;
            font-size: 15px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 6px 2px;
            position: relative;
            transition: color 0.2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--color-primary);
        }
        .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
        }
        .search-box {
            background: var(--color-bg-gray);
            border: 1px solid transparent;
            border-radius: 8px;
            height: 38px;
            padding: 0 12px;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-muted);
            transition: border-color 0.2s ease, background 0.2s ease;
            cursor: pointer;
        }
        .search-box:hover {
            background: #E8E7E2;
        }
        .search-box kbd {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: 4px;
            padding: 1px 5px;
            font-size: 11px;
            color: var(--color-text-muted);
            line-height: 1.4;
        }
        .login-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: color 0.2s;
            white-space: nowrap;
        }
        .login-link:hover {
            color: var(--color-primary);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-primary);
            color: #F6F5F1;
            font-size: 14px;
            font-weight: 500;
            border-radius: var(--radius-btn);
            height: 40px;
            padding: 0 20px;
            border: 1px solid transparent;
            transition: all 0.2s ease;
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: #16302C;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(27, 44, 40, 0.2);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }
        .btn-primary.btn-sm {
            height: 36px;
            padding: 0 16px;
            font-size: 13px;
        }
        .menu-btn {
            width: 38px;
            height: 38px;
            border: 1px solid var(--color-border);
            border-radius: 8px;
            background: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text);
            transition: background 0.2s;
        }
        .menu-btn:hover {
            background: var(--color-bg-gray);
        }
        .mobile-menu {
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            padding: 24px 20px;
            transform: translateY(-100%);
            transition: transform 0.3s ease;
            z-index: 90;
            box-shadow: 0 8px 24px rgba(27, 44, 40, 0.08);
            visibility: hidden;
            opacity: 0;
            transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s;
        }
        .mobile-menu.open {
            transform: translateY(0);
            visibility: visible;
            opacity: 1;
        }
        .mobile-nav-link {
            display: block;
            padding: 12px 0;
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-bottom: 1px solid var(--color-divider);
            transition: color 0.2s;
        }
        .mobile-nav-link:last-child {
            border-bottom: none;
        }
        .mobile-nav-link:hover {
            color: var(--color-primary);
        }
        .mobile-nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }
        .site-footer {
            background: var(--color-bg-dark);
            color: rgba(255, 255, 255, 0.72);
        }
        .footer-title {
            font-size: 13px;
            font-weight: 600;
            color: #F6F5F1;
            margin-bottom: 12px;
            letter-spacing: 0.05em;
        }
        .footer-link {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            padding: 5px 0;
            transition: color 0.2s;
        }
        .footer-link:hover {
            color: #F6F5F1;
            text-decoration: underline;
            text-underline-offset: 4px;
        }
        .footer-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
        }
        .footer-contact {
            display: block;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            padding: 4px 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            margin-top: 20px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--color-text-muted);
            padding: 48px 0 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .breadcrumb .sep {
            color: var(--color-border);
        }
        .breadcrumb .current {
            color: var(--color-text);
            white-space: nowrap;
            text-overflow: ellipsis;
            max-width: 280px;
            overflow: hidden;
        }
        .article-header {
            padding: 24px 0 40px;
        }
        .article-title {
            font-size: clamp(2rem, 4vw, 2.75rem);
            font-weight: 800;
            line-height: 1.3;
            color: var(--color-text);
            letter-spacing: -0.02em;
            max-width: 24em;
            margin-bottom: 20px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 0;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            background: rgba(46, 107, 98, 0.12);
            color: var(--color-secondary);
            font-size: 13px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: var(--radius-tag);
            line-height: 1.5;
        }
        .meta-dot {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: var(--color-border);
            display: inline-block;
        }
        .article-cover {
            width: 100%;
            aspect-ratio: 21/9;
            object-fit: cover;
            border-radius: var(--radius-image);
            border: 1px solid var(--color-border);
            background: var(--color-bg-gray);
            margin-bottom: 48px;
        }
        .article-body {
            max-width: 72ch;
            margin: 0 auto;
            color: var(--color-text-secondary);
            font-size: 16px;
            line-height: 1.75;
        }
        .article-body p {
            margin-bottom: 1.5em;
        }
        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 2em 0 0.8em;
            line-height: 1.3;
        }
        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--color-text);
            margin: 1.8em 0 0.6em;
            line-height: 1.4;
        }
        .article-body ul,
        .article-body ol {
            margin: 0 0 1.5em;
            padding-left: 1.5em;
        }
        .article-body li {
            margin-bottom: 0.5em;
        }
        .article-body ul li::marker {
            color: var(--color-secondary);
        }
        .article-body ol li::marker {
            color: var(--color-secondary);
            font-weight: 600;
        }
        .article-body blockquote {
            border-left: 4px solid var(--color-primary);
            background: var(--color-bg-gray);
            padding: 16px 20px;
            margin: 1.5em 0;
            border-radius: 0 8px 8px 0;
            color: var(--color-text);
            font-style: normal;
        }
        .article-body blockquote p {
            margin-bottom: 0;
        }
        .article-body code {
            font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
            background: var(--color-bg-gray);
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--color-primary);
        }
        .article-body pre {
            background: var(--color-bg-dark);
            color: #F6F5F1;
            padding: 20px;
            border-radius: var(--radius-card);
            overflow-x: auto;
            margin: 1.5em 0;
            line-height: 1.6;
            font-size: 14px;
        }
        .article-body pre code {
            background: transparent;
            padding: 0;
            color: inherit;
            font-size: inherit;
        }
        .article-body img {
            border-radius: var(--radius-image);
            border: 1px solid var(--color-border);
            margin: 1.5em 0;
            width: 100%;
            height: auto;
            background: var(--color-bg-gray);
        }
        .article-body a {
            color: var(--color-secondary);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color 0.2s;
        }
        .article-body a:hover {
            color: var(--color-primary);
        }
        .article-body hr {
            border: none;
            border-top: 1px solid var(--color-divider);
            margin: 2.5em 0;
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5em 0;
            font-size: 14px;
        }
        .article-body th,
        .article-body td {
            border: 1px solid var(--color-border);
            padding: 10px 12px;
            text-align: left;
        }
        .article-body th {
            background: var(--color-bg-gray);
            font-weight: 600;
            color: var(--color-text);
        }
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 48px;
            max-width: 72ch;
            margin-left: auto;
            margin-right: auto;
        }
        .tag-item {
            background: var(--color-bg-gray);
            color: var(--color-text-secondary);
            font-size: 13px;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            transition: all 0.2s;
            display: inline-flex;
            align-items: center;
        }
        .tag-item:hover {
            background: rgba(46, 107, 98, 0.12);
            color: var(--color-secondary);
        }
        .related-section {
            margin-top: 64px;
            padding: 56px 0;
            border-top: 1px solid var(--color-border);
        }
        .related-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 24px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.25s ease;
            display: block;
        }
        .related-card:hover {
            border-color: var(--color-secondary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .related-card-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            background: var(--color-bg-gray);
        }
        .related-card-body {
            padding: 16px;
        }
        .related-card-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0;
        }
        .related-card-date {
            font-size: 12px;
            color: var(--color-text-muted);
            margin-top: 8px;
        }
        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-secondary);
            margin-top: 32px;
            transition: color 0.2s, transform 0.2s;
        }
        .back-link:hover {
            color: var(--color-primary);
            transform: translateX(-4px);
        }
        .not-found {
            text-align: center;
            padding: 120px 24px;
            max-width: 600px;
            margin: 0 auto;
        }
        .not-found-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 20px;
            border-radius: 12px;
            background: var(--color-bg-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-muted);
        }
        .not-found h1 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
        }
        .not-found p {
            color: var(--color-text-muted);
            margin-bottom: 24px;
        }
        @media (max-width: 1024px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .related-card:last-child {
                grid-column: span 2;
            }
        }
        @media (max-width: 768px) {
            .related-grid {
                grid-template-columns: 1fr;
            }
            .related-card:last-child {
                grid-column: span 1;
            }
            .article-cover {
                aspect-ratio: 16/10;
            }
            .breadcrumb {
                padding-top: 32px;
            }
            .breadcrumb .current {
                max-width: 160px;
            }
            .article-header {
                padding: 16px 0 32px;
            }
            .article-meta {
                gap: 8px;
            }
        }
        @media (max-width: 520px) {
            .article-body {
                font-size: 15px;
            }
            .article-title {
                font-size: 1.75rem;
            }
            .related-section {
                padding: 40px 0;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #1F3D38;
  --primary-dark: #162E2A;
  --secondary: #2E6B62;
  --accent: #C96F4A;
  --bg-warm: #F6F5F1;
  --bg-white: #FFFFFF;
  --bg-gray: #EEEDE8;
  --dark: #1B2C28;
  --text: #26302D;
  --text-sec: #4C5A55;
  --text-weak: #7B8782;
  --border: #E3E0D9;
  --divider: #EDEBE5;
  --success: #2F7D5C;
  --warning: #B7791F;
  --error: #B44335;
  --radius-btn: 8px;
  --radius-card: 12px;
  --radius-img: 16px;
  --radius-tag: 6px;
  --shadow-card: 0 1px 2px rgba(27,44,40,0.04);
  --shadow-hover: 0 8px 24px rgba(27,44,40,0.10);
  --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg-warm);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; }
input, select, textarea { font-family: inherit; }

.container-site {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}
@media (max-width: 768px) {
  .container-site { padding-left: 20px; padding-right: 20px; }
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  background: rgba(246,245,241,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--dark);
  color: var(--bg-warm);
  font-size: 15px;
  font-weight: 700;
  border-radius: 6px;
  letter-spacing: 0;
  flex-shrink: 0;
}
.brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.nav-link {
  position: relative;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-sec);
  padding: 6px 2px;
  transition: color .2s ease;
  white-space: nowrap;
}
.nav-link:hover { color: var(--secondary); }
.nav-link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%;
  height: 2px;
  background: var(--secondary);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--text); font-weight: 600; }
.nav-link.active::after { transform: scaleX(1); background: var(--primary); }
.search-box {
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 12px;
  background: var(--bg-gray);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-weak);
  font-size: 13px;
  width: 240px;
  transition: all .2s ease;
  cursor: text;
}
.search-box:hover { border-color: #C5C1B8; }
.search-box:focus-within { border-color: var(--secondary); box-shadow: 0 0 0 2px rgba(46,107,98,0.12); }
.search-box kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  color: var(--text-weak);
  margin-left: auto;
  line-height: 1.4;
}
.login-link { font-size: 14px; font-weight: 500; color: var(--text-sec); white-space: nowrap; }
.login-link:hover { color: var(--secondary); }
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 24px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-btn);
  transition: all .2s ease;
  white-space: nowrap;
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(31,61,56,0.25); }
.btn-primary:active { transform: translateY(0); box-shadow: inset 0 2px 4px rgba(0,0,0,0.15); }
.btn-primary:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; }
.btn-sm { height: 36px; padding: 0 18px; font-size: 13.5px; }
.menu-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  transition: all .2s ease;
}
.menu-btn:hover { border-color: var(--secondary); color: var(--secondary); }

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  z-index: 99;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-hover);
  animation: menuFade .22s ease-out;
}
@keyframes menuFade {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
.mobile-menu a {
  display: block;
  padding: 14px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-bottom: 1px solid var(--divider);
  transition: all .15s ease;
}
.mobile-menu a:hover { background: var(--bg-warm); color: var(--secondary); }
.mobile-menu a.active { color: var(--secondary); font-weight: 600; background: rgba(46,107,98,0.06); }

/* ---------- Buttons ---------- */
.btn-accent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 28px;
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-btn);
  transition: all .2s ease;
  white-space: nowrap;
}
.btn-accent:hover { background: #B55F3D; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(201,111,74,0.32); }
.btn-accent:active { transform: translateY(0); box-shadow: inset 0 2px 4px rgba(0,0,0,0.12); }
.btn-accent:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-ghost-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 26px;
  background: transparent;
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: var(--radius-btn);
  transition: all .2s ease;
  white-space: nowrap;
}
.btn-ghost-light:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.6); transform: translateY(-1px); }
.btn-ghost-dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 26px;
  background: transparent;
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  transition: all .2s ease;
  white-space: nowrap;
}
.btn-ghost-dark:hover { background: var(--bg-gray); border-color: #C5C1B8; }
.btn-ghost-dark:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; }

/* ---------- Category Hero ---------- */
.category-hero {
  position: relative;
  background:
    radial-gradient(circle at 82% 30%, rgba(46,107,98,0.25) 0%, transparent 55%),
    linear-gradient(rgba(27,44,40,0.88), rgba(27,44,40,0.92)),
    url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.category-hero-inner {
  position: relative;
  z-index: 2;
  padding-top: 56px;
  padding-bottom: 64px;
}
.hero-seal {
  position: absolute;
  right: 10%;
  top: 30%;
  width: 140px;
  height: 140px;
  border: 1.5px solid rgba(201,111,74,0.22);
  border-radius: 50%;
  z-index: 1;
  pointer-events: none;
  transform: rotate(-12deg);
  display: none;
}
@media (min-width: 1024px) {
  .hero-seal { display: block; }
}
.hero-seal::before {
  content: "启云 · 运维";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  letter-spacing: 6px;
  color: rgba(201,111,74,0.35);
  text-transform: uppercase;
}
.breadcrumb-light {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  margin-bottom: 24px;
}
.breadcrumb-light a { transition: color .2s ease; }
.breadcrumb-light a:hover { color: rgba(255,255,255,0.85); }
.breadcrumb-light .sep { color: rgba(255,255,255,0.3); margin: 0 2px; }
.hero-title {
  font-size: clamp(2.25rem, 4vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.hero-sub {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: rgba(255,255,255,0.78);
  max-width: 620px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 44px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 560px;
  border-top: 1px solid rgba(255,255,255,0.14);
  padding-top: 24px;
}
.hero-stat strong {
  display: block;
  font-family: var(--font-num);
  font-size: 1.875rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}
.hero-stat span {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
}
@media (max-width: 640px) {
  .hero-stats { gap: 8px; }
  .hero-stat strong { font-size: 1.375rem; }
}

/* ---------- Section base ---------- */
.section { padding: 96px 0; }
@media (max-width: 1024px) { .section { padding: 72px 0; } }
@media (max-width: 640px) { .section { padding: 56px 0; } }
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 48px;
}
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--secondary);
  margin-bottom: 10px;
}
.section-kicker::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
  letter-spacing: -0.01em;
}
.section-intro {
  font-size: 15px;
  color: var(--text-sec);
  max-width: 460px;
  line-height: 1.8;
}
.bg-warm-section { background: var(--bg-warm); }
.bg-white-section { background: #fff; }
.bg-gray-section { background: var(--bg-gray); }

/* ---------- Feature Cards ---------- */
.feature-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: all .3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.feature-card:hover {
  border-color: rgba(46,107,98,0.4);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.feature-img-wrap {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-gray);
}
.feature-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s ease-out;
}
.feature-card:hover .feature-img-wrap img { transform: scale(1.04); }
.feature-card .card-tag {
  position: absolute;
  left: 14px;
  top: 14px;
  z-index: 2;
  background: rgba(246,245,241,0.92);
  color: var(--secondary);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-tag);
  backdrop-filter: blur(4px);
  letter-spacing: 0.02em;
}
.feature-body {
  padding: 22px 22px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.feature-body h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.4;
}
.feature-body p {
  font-size: 14px;
  color: var(--text-sec);
  line-height: 1.75;
  flex: 1;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--secondary);
  transition: all .2s ease;
}
.card-link svg { transition: transform .2s ease; }
.feature-card:hover .card-link svg { transform: translateX(4px); }
.card-link:hover { color: var(--primary); }

/* ---------- Scenario section ---------- */
.scenario-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}
@media (min-width: 1024px) {
  .scenario-wrap { grid-template-columns: 5fr 7fr; gap: 64px; }
}
.scenario-img-col {
  position: relative;
}
.scenario-img-col::before {
  content: "";
  position: absolute;
  top: 14px;
  left: -14px;
  width: 100%;
  height: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-img);
  z-index: 0;
}
.scenario-img-col img {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-img);
  border: 1px solid var(--border);
  background: var(--bg-gray);
}
.scenario-list {
  display: flex;
  flex-direction: column;
}
.scenario-item {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--divider);
  transition: background .2s ease;
}
.scenario-item:first-child { padding-top: 0; }
.scenario-item:last-child { border-bottom: none; }
.scenario-num {
  font-family: var(--font-num);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin-top: 6px;
  flex-shrink: 0;
  min-width: 36px;
}
.scenario-content h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  line-height: 1.4;
}
.scenario-content p {
  font-size: 14.5px;
  color: var(--text-sec);
  line-height: 1.75;
}
.scenario-item:hover .scenario-content h3 { color: var(--secondary); }

/* ---------- Metrics ---------- */
.metrics-band { padding: 64px 0; }
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  text-align: center;
}
@media (min-width: 1024px) {
  .metrics-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.metric-item {
  padding: 8px 16px;
  position: relative;
}
.metric-item:not(:last-child)::after {
  content: "";
  position: absolute;
  right: 0;
  top: 12%;
  height: 76%;
  width: 1px;
  background: var(--border);
  display: none;
}
@media (min-width: 1024px) {
  .metric-item:not(:last-child)::after { display: block; }
}
.metric-num {
  font-family: var(--font-num);
  font-size: clamp(1.875rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.metric-label {
  margin-top: 6px;
  font-size: 13.5px;
  color: var(--text-sec);
}

/* ---------- Process ---------- */
.process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  counter-reset: step;
}
@media (min-width: 768px) {
  .process-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1280px) {
  .process-grid { grid-template-columns: repeat(4, 1fr); }
}
.process-item {
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px 24px 24px;
  box-shadow: var(--shadow-card);
  transition: all .25s ease;
  height: 100%;
}
.process-item:hover {
  border-color: rgba(46,107,98,0.35);
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.process-num {
  font-family: var(--font-num);
  font-size: 0.8125rem;
  font-weight: 700;
  color: #fff;
  background: var(--secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-tag);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}
.process-item h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}
.process-item p {
  font-size: 14px;
  color: var(--text-sec);
  line-height: 1.75;
}

/* ---------- FAQ ---------- */
.faq-section {
  background: var(--primary);
  color: #fff;
  padding: 96px 0;
}
@media (max-width: 1024px) { .faq-section { padding: 72px 0; } }
@media (max-width: 640px) { .faq-section { padding: 56px 0; } }
.faq-section .section-title { color: #fff; }
.faq-section .section-kicker { color: rgba(255,255,255,0.65); }
.faq-section .section-kicker::before { background: var(--accent); }
.faq-section .section-intro { color: rgba(255,255,255,0.6); }
.faq-list {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.14);
  transition: border-color .25s ease;
}
.faq-item.open { border-bottom-color: rgba(255,255,255,0.28); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1.0625rem;
  font-weight: 500;
  text-align: left;
  padding: 22px 0;
  cursor: pointer;
  transition: color .2s ease;
  line-height: 1.5;
}
.faq-question:hover { color: rgba(255,255,255,0.82); }
.faq-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border: 1.5px solid rgba(255,255,255,0.4);
  border-radius: 50%;
  color: rgba(255,255,255,0.7);
  font-size: 16px;
  line-height: 1;
  flex-shrink: 0;
  transition: all .3s ease;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  border-color: var(--accent);
  color: var(--accent);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-answer-inner {
  font-size: 15px;
  line-height: 1.75;
  color: rgba(255,255,255,0.72);
  padding-bottom: 24px;
  padding-right: 40px;
}
@media (max-width: 640px) { .faq-answer-inner { padding-right: 0; } }

/* ---------- CTA ---------- */
.cta-section {
  background: var(--dark);
  padding: 88px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  border: 1.5px solid rgba(201,111,74,0.14);
  border-radius: 50%;
  right: -100px;
  top: -120px;
  pointer-events: none;
}
.cta-section::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border: 1.5px solid rgba(255,255,255,0.06);
  border-radius: 50%;
  left: -60px;
  bottom: -80px;
  pointer-events: none;
}
.cta-inner { position: relative; z-index: 1; max-width: 720px; margin: 0 auto; }
.cta-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.cta-sub {
  font-size: 15.5px;
  color: rgba(255,255,255,0.65);
  line-height: 1.8;
  margin-bottom: 36px;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.65);
  font-size: 14px;
}
.site-footer .logo-mark { background: rgba(255,255,255,0.15); width: 30px; height: 30px; font-size: 14px; }
.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.55);
  max-width: 280px;
}
.footer-title {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-link {
  display: block;
  font-size: 14px;
  padding: 4px 0;
  color: rgba(255,255,255,0.55);
  transition: all .2s ease;
  position: relative;
  width: fit-content;
}
.footer-link:hover { color: rgba(255,255,255,0.9); }
.footer-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: rgba(255,255,255,0.35);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}
.footer-link:hover::after { transform: scaleX(1); }
.footer-contact {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  padding: 3px 0;
}
.footer-bottom {
  text-align: center;
  padding-top: 24px;
  margin-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 13.5px;
  color: rgba(255,255,255,0.4);
}

@media (max-width: 640px) {
  .section-head { margin-bottom: 32px; }
  .hero-actions .btn-accent,
  .hero-actions .btn-ghost-light { flex: 1; }
}

/* roulang page: category3 */
:root {
            --clr-primary: #1F3D38;
            --clr-secondary: #2E6B62;
            --clr-accent: #C96F4A;
            --clr-text: #26302D;
            --clr-text-2: #4C5A55;
            --clr-muted: #7B8782;
            --clr-border: #E3E0D9;
            --clr-divider: #EDEBE5;
            --clr-bg: #F6F5F1;
            --clr-surface: #FFFFFF;
            --clr-dark: #1B2C28;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --shadow-card: 0 1px 2px rgba(27, 44, 40, 0.04);
            --shadow-hover: 0 8px 24px rgba(27, 44, 40, 0.08);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Inter", system-ui, sans-serif;
            --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--clr-bg);
            color: var(--clr-text);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        input {
            font-family: inherit;
        }
        .container-site {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        /* ---------- Header ---------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 72px;
            background: rgba(246, 245, 241, 0.85);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--clr-border);
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--clr-primary);
            color: #F6F5F1;
            font-size: 15px;
            font-weight: 700;
            border-radius: 6px;
            flex-shrink: 0;
        }
        .brand-name {
            font-weight: 700;
            font-size: 18px;
            color: var(--clr-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--clr-text-2);
            padding: 6px 2px;
            position: relative;
            transition: color 0.2s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--clr-primary);
        }
        .nav-link.active {
            color: var(--clr-primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--clr-primary);
            border-radius: 2px;
        }
        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            height: 38px;
            padding: 0 12px;
            background: #EEEDE8;
            border: 1px solid transparent;
            border-radius: 8px;
            color: var(--clr-muted);
            font-size: 13px;
            width: 240px;
            transition: border-color 0.2s ease, background 0.2s ease;
        }
        .search-box:focus-within {
            border-color: var(--clr-secondary);
            background: #FFFFFF;
        }
        .search-box kbd {
            margin-left: auto;
            font-family: var(--font-mono);
            font-size: 11px;
            background: #FFFFFF;
            border: 1px solid var(--clr-border);
            border-radius: 4px;
            padding: 1px 6px;
            color: var(--clr-muted);
            white-space: nowrap;
        }
        .login-link {
            font-size: 14px;
            color: var(--clr-text-2);
            font-weight: 500;
            transition: color 0.2s ease;
            white-space: nowrap;
        }
        .login-link:hover {
            color: var(--clr-primary);
        }
        .menu-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--clr-primary);
            border-radius: 8px;
            transition: background 0.2s ease;
        }
        .menu-btn:hover {
            background: #EEEDE8;
        }

        /* ---------- Buttons ---------- */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 42px;
            padding: 0 22px;
            background: var(--clr-primary);
            color: #F6F5F1;
            font-size: 14px;
            font-weight: 500;
            border-radius: 8px;
            border: 1px solid transparent;
            transition: all 0.2s ease;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: #172D29;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(31, 61, 56, 0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.12);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--clr-primary);
            outline-offset: 2px;
        }
        .btn-sm {
            height: 38px;
            padding: 0 18px;
            font-size: 13px;
        }
        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 42px;
            padding: 0 20px;
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: #FFFFFF;
            font-size: 14px;
            font-weight: 500;
            border-radius: 8px;
            transition: all 0.2s ease;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.6);
        }
        .btn-ghost-light:focus-visible {
            outline: 2px solid rgba(255, 255, 255, 0.7);
            outline-offset: 2px;
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 26px;
            background: var(--clr-accent);
            color: #FFFFFF;
            font-size: 14px;
            font-weight: 600;
            border-radius: 8px;
            border: 1px solid transparent;
            transition: all 0.2s ease;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-accent:hover {
            background: #B5633F;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(201, 111, 74, 0.3);
        }
        .btn-accent:active {
            transform: translateY(0);
            box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
        }
        .btn-accent:focus-visible {
            outline: 2px solid var(--clr-accent);
            outline-offset: 2px;
        }

        /* ---------- Mobile menu ---------- */
        .mobile-menu {
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            bottom: 0;
            background: #FFFFFF;
            z-index: 99;
            transform: translateY(-10px);
            opacity: 0;
            pointer-events: none;
            transition: transform 0.25s ease, opacity 0.25s ease;
            overflow-y: auto;
            padding-bottom: 40px;
        }
        .mobile-menu.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav-link {
            display: block;
            padding: 14px 0;
            font-size: 16px;
            font-weight: 500;
            color: var(--clr-text-2);
            border-bottom: 1px solid var(--clr-divider);
            transition: color 0.2s ease, padding-left 0.2s ease;
        }
        .mobile-nav-link:hover {
            color: var(--clr-primary);
            padding-left: 6px;
        }
        .mobile-nav-link.active {
            color: var(--clr-primary);
            font-weight: 600;
        }

        /* ---------- Section ---------- */
        .section {
            padding: 96px 0;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            background: rgba(46, 107, 98, 0.12);
            color: var(--clr-secondary);
            font-size: 13px;
            font-weight: 500;
            border-radius: 6px;
            letter-spacing: 0.02em;
        }
        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 700;
            line-height: 1.25;
            color: var(--clr-text);
            letter-spacing: -0.01em;
        }
        .section-title-light {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 700;
            line-height: 1.25;
            color: #F6F5F1;
            letter-spacing: -0.01em;
        }
        .section-desc {
            font-size: 16px;
            line-height: 1.75;
            color: var(--clr-text-2);
            max-width: 72ch;
        }

        /* ---------- Category Banner ---------- */
        .cat-banner {
            position: relative;
            padding: 72px 0 80px;
            background: linear-gradient(105deg, rgba(27, 44, 40, 0.94) 30%, rgba(31, 61, 56, 0.80)), url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            border-bottom: 4px solid rgba(201, 111, 74, 0.35);
        }
        .breadcrumb {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 32px;
            letter-spacing: 0.02em;
        }
        .breadcrumb a {
            transition: color 0.2s ease;
        }
        .breadcrumb a:hover {
            color: rgba(255, 255, 255, 0.85);
        }
        .breadcrumb .sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.35);
        }
        .breadcrumb .current {
            color: rgba(255, 255, 255, 0.75);
        }
        .cat-banner-badge {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            background: rgba(201, 111, 74, 0.18);
            border: 1px solid rgba(201, 111, 74, 0.4);
            color: #E8A282;
            font-size: 13px;
            font-weight: 500;
            border-radius: 6px;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
        }
        .cat-banner h1 {
            font-size: clamp(2rem, 4vw, 3.25rem);
            font-weight: 800;
            line-height: 1.15;
            color: #F6F5F1;
            letter-spacing: -0.015em;
            margin-bottom: 16px;
        }
        .cat-banner-desc {
            font-size: 16px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.78);
            max-width: 640px;
            margin-bottom: 28px;
        }
        .cat-banner-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .banner-seal {
            position: absolute;
            right: 7%;
            bottom: 32px;
            width: 54px;
            height: 54px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid rgba(201, 111, 74, 0.35);
            color: rgba(201, 111, 74, 0.45);
            font-size: 22px;
            font-weight: 700;
            border-radius: 6px;
            transform: rotate(-6deg);
            pointer-events: none;
            font-family: "PingFang SC", "Noto Sans SC", sans-serif;
        }

        /* ---------- Split column ---------- */
        .split-img {
            position: relative;
        }
        .split-img-bg {
            position: absolute;
            top: 14px;
            left: -14px;
            width: 100%;
            height: 100%;
            background: rgba(46, 107, 98, 0.14);
            border-radius: 16px;
            z-index: 0;
        }
        .split-img img {
            position: relative;
            z-index: 1;
            border-radius: 16px;
            border: 1px solid var(--clr-border);
            box-shadow: var(--shadow-hover);
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4 / 3;
        }
        .split-items {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .split-card {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 22px;
            background: var(--clr-surface);
            border: 1px solid var(--clr-border);
            border-radius: 12px;
            box-shadow: var(--shadow-card);
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }
        .split-card:hover {
            border-color: var(--clr-secondary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .split-card-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(46, 107, 98, 0.1);
            color: var(--clr-secondary);
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 600;
            border-radius: 8px;
            flex-shrink: 0;
        }
        .split-card-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--clr-text);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .split-card-body p {
            font-size: 14px;
            line-height: 1.65;
            color: var(--clr-text-2);
        }
        .split-card-arrow {
            margin-left: auto;
            flex-shrink: 0;
            color: var(--clr-muted);
            transition: transform 0.25s ease, color 0.25s ease;
            align-self: center;
        }
        .split-card:hover .split-card-arrow {
            transform: translateX(4px);
            color: var(--clr-secondary);
        }

        /* ---------- Stats band ---------- */
        .stats-band {
            background: #EEEDE8;
            border-top: 1px solid var(--clr-border);
            border-bottom: 1px solid var(--clr-border);
            padding: 56px 0;
        }
        .stat-item {
            text-align: center;
            padding: 12px 8px;
            position: relative;
        }
        .stat-item+.stat-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 20%;
            height: 60%;
            width: 1px;
            background: var(--clr-border);
        }
        .stat-value {
            display: block;
            font-size: clamp(1.6rem, 2.5vw, 2.2rem);
            font-weight: 800;
            color: var(--clr-primary);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }
        .stat-label {
            display: block;
            font-size: 13px;
            color: var(--clr-text-2);
            margin-top: 6px;
            letter-spacing: 0.02em;
        }

        /* ---------- Scenario cards ---------- */
        .scenario-card {
            background: var(--clr-surface);
            border: 1px solid var(--clr-border);
            border-radius: 12px;
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }
        .scenario-card:hover {
            border-color: var(--clr-secondary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .scenario-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: rgba(31, 61, 56, 0.08);
            color: var(--clr-primary);
            border-radius: 10px;
            margin-bottom: 18px;
        }
        .scenario-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--clr-text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .scenario-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--clr-text-2);
        }

        /* ---------- Process ---------- */
        .process-steps {
            position: relative;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .process-step {
            position: relative;
            padding: 32px 28px;
            background: var(--clr-surface);
            border: 1px solid var(--clr-border);
            border-radius: 12px;
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.25s ease, transform 0.25s ease;
        }
        .process-step:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .process-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--clr-primary);
            color: #F6F5F1;
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 600;
            border-radius: 8px;
            margin-bottom: 16px;
        }
        .process-step h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--clr-text);
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--clr-text-2);
        }
        .process-arrow {
            position: absolute;
            top: 50%;
            right: -24px;
            transform: translateY(-50%);
            color: var(--clr-border);
            z-index: 2;
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            background: var(--clr-primary);
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }
        .faq-item:first-child {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            min-height: 64px;
            padding: 16px 4px;
            cursor: pointer;
            text-align: left;
            width: 100%;
            font-size: 16px;
            font-weight: 500;
            color: #F6F5F1;
            line-height: 1.5;
            transition: color 0.2s ease;
        }
        .faq-question:hover {
            color: #FFFFFF;
        }
        .faq-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 6px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: rgba(255, 255, 255, 0.7);
            flex-shrink: 0;
            transition: transform 0.3s ease, border-color 0.3s ease, color 0.3s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            border-color: rgba(201, 111, 74, 0.6);
            color: #E8A282;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 4px;
        }
        .faq-item.open .faq-answer {
            max-height: 320px;
            padding-bottom: 22px;
        }
        .faq-answer p {
            font-size: 15px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.72);
        }

        /* ---------- CTA ---------- */
        .cta-section {
            background: var(--clr-dark);
            padding: 80px 0;
        }
        .cta-box {
            max-width: 720px;
            margin: 0 auto;
            text-align: center;
        }
        .cta-box h2 {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 700;
            color: #F6F5F1;
            line-height: 1.25;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }
        .cta-box>p {
            font-size: 15px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 36px;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-input {
            height: 44px;
            padding: 0 16px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.08);
            color: #F6F5F1;
            font-size: 14px;
            outline: none;
            transition: border-color 0.2s ease, background 0.2s ease;
            width: 200px;
        }
        .cta-input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .cta-input:focus {
            border-color: var(--clr-secondary);
            background: rgba(255, 255, 255, 0.12);
            box-shadow: 0 0 0 2px rgba(46, 107, 98, 0.2);
        }
        .cta-privacy {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.35);
            margin-top: 16px;
            letter-spacing: 0.02em;
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: var(--clr-dark);
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 32ch;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #F6F5F1;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-link {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            margin-bottom: 10px;
            transition: color 0.2s ease;
            width: fit-content;
        }
        .footer-link:hover {
            color: #F6F5F1;
            text-decoration: underline;
            text-decoration-color: rgba(255, 255, 255, 0.3);
            text-underline-offset: 4px;
        }
        .footer-contact {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            margin-bottom: 10px;
            line-height: 1.6;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
            letter-spacing: 0.02em;
        }

        /* ---------- Responsive ---------- */
        @media (max-width: 1024px) {
            .stats-band .grid {
                grid-template-columns: repeat(2, 1fr) !important;
            }
            .stat-item:nth-child(2)::before {
                display: none;
            }
            .stat-item:nth-child(n+3)::before {
                display: none;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-arrow {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .container-site {
                padding-left: 20px;
                padding-right: 20px;
            }
            .section {
                padding: 72px 0;
            }
            .cat-banner {
                padding: 56px 0 64px;
            }
            .banner-seal {
                display: none;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 520px) {
            .cta-form {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-input {
                width: 100%;
            }
            .btn-accent {
                width: 100%;
            }
            .cat-banner-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .cat-banner-actions .btn-primary,
            .cat-banner-actions .btn-ghost-light {
                width: 100%;
            }
            .split-card {
                flex-direction: column;
                gap: 14px;
            }
            .split-card-arrow {
                display: none;
            }
        }