/* roulang page: index */
:root {
            --primary: #1B4D3E;
            --primary-dark: #12392D;
            --primary-light: #E4EDE9;
            --accent: #C0A062;
            --accent-light: #F5EDE0;
            --bg: #FAF7F2;
            --surface: #FFFFFF;
            --text: #1F2624;
            --text-muted: #6B7572;
            --border: #E6DFD6;
            --radius: 16px;
            --radius-sm: 12px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 12px rgba(27, 77, 62, 0.06);
            --shadow-hover: 0 10px 30px rgba(27, 77, 62, 0.12);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 16px;
            padding-right: 16px;
        }

        .section {
            padding: 88px 0;
        }

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

        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.5px;
            margin: 0;
            position: relative;
        }

        .section-header h2::after {
            content: "";
            display: block;
            width: 48px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
            margin-top: 12px;
        }

        .section-header__link {
            font-size: 15px;
            color: var(--primary);
            font-weight: 600;
            white-space: nowrap;
        }

        .section-header__link:hover {
            color: var(--accent);
        }

        /* ===== Buttons ===== */
        .btn {
            border-radius: 999px;
            font-weight: 600;
            transition: var(--transition);
            padding: 14px 30px;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            border: 0;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(27, 77, 62, 0.3);
        }

        .btn-primary:focus {
            outline: 3px solid rgba(27, 77, 62, 0.25);
            outline-offset: 2px;
        }

        .btn-outline-light {
            background: rgba(255, 255, 255, 0.08);
            border: 1.5px solid rgba(255, 255, 255, 0.9);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
            transform: translateY(-2px);
        }

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

        .btn-light:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(192, 160, 98, 0.35);
        }

        .btn-sm {
            padding: 10px 20px;
            font-size: 14px;
            min-height: 42px;
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 16px;
            min-height: 48px;
        }

        /* ===== Nav ===== */
        .site-nav {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1030;
            width: min(1200px, calc(100% - 32px));
            background: rgba(255, 255, 255, 0.84);
            -webkit-backdrop-filter: blur(18px) saturate(160%);
            backdrop-filter: blur(18px) saturate(160%);
            border: 1px solid rgba(255, 255, 255, 0.55);
            border-radius: 999px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 8px 24px;
            min-height: 64px;
        }

        .nav-brand {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        .nav-brand__dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
        }

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

        .nav-link {
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 15px;
            color: var(--text);
            text-decoration: none;
            transition: var(--transition);
            min-height: 40px;
            display: inline-flex;
            align-items: center;
            white-space: nowrap;
        }

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

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

        .nav-cta {
            margin-left: 12px;
            padding: 10px 20px;
            font-size: 14px;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            background: none;
            border: none;
            padding: 12px;
            cursor: pointer;
            min-width: 44px;
            min-height: 44px;
            border-radius: 999px;
        }

        .nav-toggle .bar {
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-toggle:hover .bar {
            background: var(--accent);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 90vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            padding: 120px 0 100px;
        }

        .hero__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(27, 77, 62, 0.92) 0%, rgba(27, 77, 62, 0.68) 45%, rgba(18, 57, 45, 0.40) 100%);
        }

        .hero__content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }

        .hero__badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.5);
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            font-size: 14px;
            letter-spacing: 0.3px;
            margin-bottom: 24px;
        }

        .hero__badge::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
        }

        .hero__title {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.25;
            color: #fff;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
        }

        .hero__subtitle {
            font-size: 18px;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.92);
            margin-bottom: 36px;
            max-width: 540px;
        }

        .hero__actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 56px;
        }

        .hero__links {
            display: flex;
            gap: 32px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }

        .hero__links a {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            text-decoration: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .hero__links a::after {
            content: "→";
            font-size: 13px;
            opacity: 0.7;
        }

        .hero-bottom-line {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40px;
            background: linear-gradient(to bottom, transparent, rgba(250, 247, 242, 1));
            z-index: 3;
            pointer-events: none;
        }

        /* ===== Stats Bar ===== */
        .stats-bar {
            position: relative;
            z-index: 10;
            margin-top: -60px;
            padding: 0;
        }

        .stats-grid {
            background: var(--surface);
            border-radius: var(--radius);
            box-shadow: 0 8px 32px rgba(27, 77, 62, 0.10);
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            overflow: hidden;
        }

        .stat-item {
            padding: 32px 24px;
            text-align: center;
            position: relative;
        }

        .stat-item+.stat-item {
            border-left: 1px solid var(--border);
        }

        .stat-item__number {
            font-size: 44px;
            font-weight: 700;
            color: var(--accent);
            display: block;
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .stat-item__label {
            font-size: 14px;
            color: var(--text-muted);
            display: block;
        }

        /* ===== Service Cards ===== */
        .service-card {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(27, 77, 62, 0.35);
            transform: translateY(-4px);
        }

        .service-card__thumb {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 20px;
            aspect-ratio: 16/10;
            background: var(--primary-light);
        }

        .service-card__thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

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

        .service-card__badge {
            display: inline-block;
            padding: 4px 12px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: 6px;
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .service-card__title {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 10px;
            color: var(--text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

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

        .service-card__metric {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
        }

        .service-card__link {
            font-size: 14px;
            color: var(--primary);
            font-weight: 600;
            text-decoration: none;
        }

        .service-card__link:hover {
            color: var(--accent);
        }

        /* ===== News Section ===== */
        .news-section {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 72px 0;
            position: relative;
        }

        .news-list {
            display: flex;
            flex-direction: column;
        }

        .news-card {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 20px 16px;
            border-bottom: 1px solid var(--border);
            transition: background 0.3s ease;
            text-decoration: none;
        }

        .news-card:first-child {
            padding-top: 0;
        }

        .news-card:last-child {
            border-bottom: none;
        }

        .news-card:hover {
            background: rgba(228, 237, 233, 0.4);
            border-radius: var(--radius-sm);
        }

        .news-card__content {
            flex: 1;
            min-width: 0;
        }

        .news-card__badge {
            display: inline-block;
            padding: 3px 10px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: 6px;
            margin-bottom: 8px;
        }

        .news-card__title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: var(--transition);
        }

        .news-card:hover .news-card__title {
            color: var(--primary);
        }

        .news-card__summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card__date {
            font-size: 13px;
            color: var(--text-muted);
        }

        .news-card__arrow {
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
            margin-top: 20px;
            opacity: 0.4;
            transition: var(--transition);
        }

        .news-card:hover .news-card__arrow {
            opacity: 1;
            transform: translateX(4px);
        }

        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
        }

        .empty-state__icon {
            font-size: 48px;
            margin-bottom: 16px;
            opacity: 0.5;
        }

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

        .news-sidebar {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 28px;
            border: 1px solid var(--border);
        }

        .news-sidebar h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 20px;
            color: var(--text);
        }

        .news-sidebar__tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-pill {
            display: inline-block;
            padding: 6px 16px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 999px;
            font-size: 13px;
            color: var(--text);
            text-decoration: none;
            transition: var(--transition);
        }

        .tag-pill:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .pagination-placeholder {
            margin-top: 24px;
            display: flex;
            align-items: center;
            gap: 8px;
            justify-content: center;
        }

        .page-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--border);
            transition: var(--transition);
        }

        .page-dot.active {
            width: 24px;
            border-radius: 999px;
            background: var(--accent);
        }

        /* ===== Testimonials ===== */
        .testimonials {
            background: var(--primary-light);
            padding: 88px 0;
        }

        .testimonials .section-header h2 {
            color: var(--text);
        }

        .testimonial {
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
            padding: 20px 16px;
        }

        .testimonial__quote-icon {
            font-size: 48px;
            color: var(--accent);
            line-height: 1;
            font-family: Georgia, serif;
            margin-bottom: 16px;
            display: block;
        }

        .testimonial__text {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            margin-bottom: 28px;
        }

        .testimonial__author {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
        }

        .testimonial__avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .testimonial__name {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
        }

        .testimonial__role {
            font-size: 13px;
            color: var(--text-muted);
            text-align: left;
        }

        .carousel-indicators {
            bottom: -10px;
        }

        .carousel-indicators button {
            width: 8px !important;
            height: 8px !important;
            border-radius: 999px !important;
            background-color: var(--accent) !important;
            border: 0 !important;
            opacity: 0.4 !important;
            transition: var(--transition) !important;
        }

        .carousel-indicators button.active {
            width: 24px !important;
            opacity: 1 !important;
        }

        .carousel-control-prev,
        .carousel-control-next {
            display: none;
        }

        /* ===== Guarantees ===== */
        .guarantees {
            padding: 72px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .guarantees-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .guarantee-item {
            text-align: center;
            padding: 16px;
        }

        .guarantee-item__icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }

        .guarantee-item__icon svg {
            width: 24px;
            height: 24px;
            stroke: var(--primary);
            fill: none;
            stroke-width: 1.5;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .guarantee-item h3 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }

        .guarantee-item p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

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

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

        .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
        }

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

        .accordion-header {
            margin: 0;
        }

        .accordion-button {
            width: 100%;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            background: var(--surface);
            border: none;
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: var(--transition);
            min-height: 56px;
        }

        .accordion-button:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .accordion-button::after {
            content: "+";
            font-size: 22px;
            font-weight: 400;
            color: var(--accent);
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 16px;
            background: none;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
        }

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

        .accordion-body {
            padding: 16px 24px;
            border-top: 1px solid var(--border);
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            background: var(--surface);
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 88px 0;
        }

        .cta-card {
            position: relative;
            background: var(--primary-dark);
            border-radius: var(--radius-lg);
            padding: 64px 40px;
            text-align: center;
            overflow: hidden;
            isolation: isolate;
        }

        .cta-card__decor {
            position: absolute;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            pointer-events: none;
            z-index: -1;
        }

        .cta-card__decor--one {
            width: 200px;
            height: 200px;
            top: -80px;
            left: -80px;
        }

        .cta-card__decor--two {
            width: 140px;
            height: 140px;
            bottom: -50px;
            right: -40px;
        }

        .cta-card h2 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .cta-card p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 32px;
        }

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

        .cta-card .btn-light:hover {
            background: var(--accent);
            color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 64px 0 24px;
        }

        .site-footer .footer-brand {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-footer .footer-brand__dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
        }

        .site-footer p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 8px;
        }

        .site-footer h3 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .site-footer a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            padding: 4px 0;
            transition: var(--transition);
        }

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

        .subscribe-form {
            display: flex;
            gap: 8px;
            margin-top: 12px;
        }

        .subscribe-form input {
            flex: 1;
            height: 44px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            padding: 0 18px;
            font-size: 14px;
            outline: none;
            transition: var(--transition);
        }

        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .subscribe-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(192, 160, 98, 0.2);
        }

        .subscribe-form .btn {
            padding: 10px 20px;
            font-size: 14px;
            min-height: 44px;
            background: var(--accent);
            color: var(--primary-dark);
            flex-shrink: 0;
        }

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

        .footer-bottom {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin: 0;
        }

        .footer-contact {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            margin-bottom: 8px;
        }

        .footer-contact svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
            margin-top: 3px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 991.98px) {
            .section {
                padding: 64px 0;
            }

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

            .nav-toggle {
                display: flex;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 12px);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.97);
                -webkit-backdrop-filter: blur(18px);
                backdrop-filter: blur(18px);
                border-radius: 20px;
                padding: 20px;
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
                border: 1px solid rgba(255, 255, 255, 0.55);
            }

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

            .nav-link {
                padding: 12px 20px;
                width: 100%;
                justify-content: center;
            }

            .nav-cta {
                margin: 8px 0 0;
                width: 100%;
                justify-content: center;
            }

            .hero {
                min-height: 72vh;
                padding: 100px 0 80px;
            }

            .hero__title {
                font-size: 36px;
            }

            .hero__subtitle {
                font-size: 16px;
            }

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

            .stat-item+.stat-item {
                border-left: none;
            }

            .stat-item:nth-child(even) {
                border-left: 1px solid var(--border);
            }

            .stat-item:nth-child(n+3) {
                border-top: 1px solid var(--border);
            }

            .guarantees-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .cta-card {
                padding: 48px 24px;
            }

            .cta-card h2 {
                font-size: 26px;
            }

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

        @media (max-width: 767.98px) {
            .section {
                padding: 56px 0;
            }

            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                margin-bottom: 28px;
            }

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

            .nav-inner {
                padding: 6px 16px;
                min-height: 56px;
            }

            .nav-brand {
                font-size: 16px;
            }

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

            .hero__actions .btn {
                width: 100%;
            }

            .hero__links {
                flex-wrap: wrap;
                gap: 16px;
                padding-top: 20px;
            }

            .stat-item__number {
                font-size: 36px;
            }

            .cta-card {
                padding: 40px 20px;
                border-radius: var(--radius);
            }

            .site-footer {
                padding-top: 48px;
            }

            .site-footer [class*="col-"] {
                margin-bottom: 28px;
            }

            .news-section {
                border-radius: var(--radius);
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .hero__title {
                font-size: 30px;
            }

            .hero__badge {
                font-size: 13px;
                padding: 6px 14px;
            }

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

            .guarantee-item {
                padding: 12px 8px;
            }

            .guarantee-item h3 {
                font-size: 14px;
            }

            .guarantee-item p {
                font-size: 12px;
            }

            .stats-grid {
                border-radius: var(--radius);
            }

            .stat-item {
                padding: 20px 12px;
            }

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

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form .btn {
                width: 100%;
            }

            .footer-bottom p {
                font-size: 12px;
                line-height: 1.6;
            }

            .service-card__title {
                font-size: 17px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1B4D3E;
            --primary-dark: #12392D;
            --primary-light: #E4EDE9;
            --accent: #C0A062;
            --accent-light: #F5EDE0;
            --bg: #FAF7F2;
            --surface: #FFFFFF;
            --text: #1F2624;
            --text-muted: #6B7572;
            --border: #E6DFD6;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 12px rgba(27, 77, 62, 0.06);
            --shadow-hover: 0 10px 30px rgba(27, 77, 62, 0.12);
            --font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            display: block;
        }
        .container {
            max-width: 1200px;
            padding-left: 16px;
            padding-right: 16px;
        }
        .section-pad {
            padding: 88px 0;
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: 56px 0;
            }
        }

        /* 悬浮胶囊导航 */
        .site-nav {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1030;
            width: calc(100% - 32px);
            max-width: 1140px;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px) saturate(160%);
            -webkit-backdrop-filter: blur(18px) saturate(160%);
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-pill);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
            padding: 8px 16px;
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 48px;
        }
        .nav-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 18px;
            color: var(--text);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .nav-brand .nav-brand__dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            display: inline-block;
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: background 0.2s ease, color 0.2s ease;
        }
        .nav-link:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .nav-link.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
        }
        .btn {
            border-radius: var(--radius-pill);
            font-weight: 600;
            transition: background 0.25s ease, border-color 0.25s ease, color 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
            font-size: 15px;
            padding: 14px 30px;
        }
        .btn-sm {
            padding: 10px 20px;
            font-size: 14px;
        }
        .btn-primary {
            background: var(--primary);
            border: 1px solid var(--primary);
            color: #fff;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(27, 77, 62, 0.24);
        }
        .btn-outline-primary {
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline-primary:hover,
        .btn-outline-primary:focus {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
            border: 1px solid #fff;
        }
        .btn-light:hover,
        .btn-light:focus {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }
        .nav-cta {
            white-space: nowrap;
            margin-left: 8px;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
        }
        .nav-toggle .bar {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            margin: 5px 0;
            border-radius: 4px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }
        .nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        @media (max-width: 991.98px) {
            .site-nav {
                border-radius: 24px;
                padding: 10px 16px;
                width: calc(100% - 24px);
            }
            .nav-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.96);
                backdrop-filter: blur(18px);
                border-radius: 24px;
                box-shadow: 0 12px 36px rgba(0, 0, 0, 0.1);
                border: 1px solid rgba(255, 255, 255, 0.6);
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-link,
            .nav-cta {
                text-align: center;
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 8px;
            }
        }

        /* 分类页 Banner */
        .category-hero {
            position: relative;
            background: var(--primary-dark) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            min-height: 360px;
            display: flex;
            align-items: center;
            padding: 96px 0 56px;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(27, 77, 62, 0.94) 0%, rgba(27, 77, 62, 0.78) 45%, rgba(18, 57, 45, 0.5) 100%);
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb-custom {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.75);
            transition: color 0.2s;
        }
        .breadcrumb-custom a:hover {
            color: #fff;
        }
        .breadcrumb-custom .sep {
            color: rgba(255, 255, 255, 0.4);
        }
        .breadcrumb-custom .current {
            color: #fff;
            font-weight: 600;
        }
        .category-hero .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.45);
            border-radius: var(--radius-pill);
            color: #fff;
            font-size: 13px;
            padding: 6px 18px;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .category-hero h1 {
            font-size: 40px;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .category-hero .hero-subtitle {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.88);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 28px;
        }
        .category-hero .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        @media (max-width: 768px) {
            .category-hero {
                min-height: 320px;
                padding: 88px 0 40px;
            }
            .category-hero h1 {
                font-size: 28px;
            }
            .category-hero .hero-subtitle {
                font-size: 15px;
            }
        }

        /* 分类简介区 */
        .intro-section {
            padding: 88px 0;
        }
        .intro-section .intro-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            height: 100%;
            min-height: 360px;
        }
        .intro-section .intro-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .intro-section .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: var(--radius-md);
            margin-bottom: 16px;
        }
        .intro-section h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.35;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .intro-section p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .intro-section .intro-points {
            margin-top: 20px;
            list-style: none;
        }
        .intro-section .intro-points li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text);
            margin-bottom: 12px;
        }
        .intro-section .intro-points li .icon-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }
        @media (max-width: 991.98px) {
            .intro-section {
                padding: 56px 0;
            }
            .intro-section .intro-img {
                min-height: 260px;
                margin-bottom: 32px;
            }
            .intro-section h2 {
                font-size: 26px;
            }
        }

        /* 特性卡片 */
        .feature-section {
            padding: 88px 0;
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .feature-section .section-head {
            text-align: center;
            margin-bottom: 56px;
        }
        .feature-section .section-head .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: var(--radius-md);
            margin-bottom: 12px;
        }
        .feature-section .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--text);
            margin-bottom: 10px;
        }
        .feature-section .section-head p {
            color: var(--text-muted);
            font-size: 15px;
            max-width: 560px;
            margin: 0 auto;
        }
        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: box-shadow 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(27, 77, 62, 0.35);
            transform: translateY(-4px);
        }
        .feature-card .card-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 20px;
            aspect-ratio: 16 / 10;
            background: var(--primary-light);
        }
        .feature-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .feature-card:hover .card-img img {
            transform: scale(1.03);
        }
        .feature-card .card-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            margin-bottom: 14px;
            align-self: flex-start;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 18px;
            flex-grow: 1;
        }
        .feature-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color 0.2s;
        }
        .feature-card .card-link:hover {
            color: var(--accent);
        }
        .feature-card .card-link svg {
            width: 14px;
            height: 14px;
            transition: transform 0.2s;
        }
        .feature-card .card-link:hover svg {
            transform: translateX(3px);
        }
        @media (max-width: 768px) {
            .feature-section {
                padding: 56px 0;
            }
            .feature-section .section-head {
                margin-bottom: 32px;
            }
            .feature-section .section-head h2 {
                font-size: 26px;
            }
        }

        /* 内容正文区 */
        .content-section {
            padding: 88px 0;
        }
        .content-section .content-inner {
            max-width: 820px;
            margin: 0 auto;
        }
        .content-section .content-block {
            margin-bottom: 40px;
        }
        .content-section .content-block h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            padding-left: 14px;
            border-left: 4px solid var(--primary);
            line-height: 1.4;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .content-section .content-block p {
            font-size: 16px;
            color: var(--text);
            line-height: 1.85;
            margin-bottom: 12px;
        }
        .highlight-box {
            background: var(--accent-light);
            border-left: 4px solid var(--accent);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            font-size: 15px;
            color: var(--text);
            line-height: 1.85;
            margin-top: 36px;
        }
        @media (max-width: 768px) {
            .content-section {
                padding: 56px 0;
            }
            .content-section .content-block h2 {
                font-size: 19px;
            }
        }

        /* CTA 区 */
        .cta-section {
            padding: 48px 0 88px;
        }
        .cta-card {
            background: var(--primary-dark);
            border-radius: 24px;
            padding: 64px 48px;
            position: relative;
            overflow: hidden;
            text-align: center;
            margin: 0 auto;
            max-width: 900px;
        }
        .cta-card::before,
        .cta-card::after {
            content: "";
            position: absolute;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
        }
        .cta-card::before {
            top: -80px;
            left: -80px;
        }
        .cta-card::after {
            bottom: -80px;
            right: -80px;
        }
        .cta-card h2 {
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
            letter-spacing: 0.5px;
        }
        .cta-card p {
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
        }
        .cta-card .btn {
            position: relative;
            z-index: 1;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 32px 0 56px;
            }
            .cta-card {
                padding: 44px 24px;
                border-radius: 20px;
            }
            .cta-card h2 {
                font-size: 24px;
            }
        }

        /* 页脚 */
        .site-footer {
            background: var(--primary-dark);
            padding: 64px 0 0;
            color: rgba(255, 255, 255, 0.8);
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-brand .footer-brand__dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }
        .site-footer p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            max-width: 360px;
        }
        .site-footer h3 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .site-footer a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            padding: 6px 0;
            transition: color 0.2s ease;
        }
        .site-footer a:hover {
            color: #fff;
        }
        .footer-contact {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 12px;
        }
        .footer-contact svg {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            color: var(--accent);
        }
        .subscribe-form {
            display: flex;
            gap: 8px;
            margin-top: 16px;
            max-width: 320px;
        }
        .subscribe-form input {
            flex: 1;
            height: 44px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            padding: 0 14px;
            font-size: 14px;
            color: #fff;
            outline: none;
            transition: border-color 0.2s, box-shadow 0.2s;
            min-width: 0;
        }
        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .subscribe-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(192, 160, 98, 0.25);
        }
        .subscribe-form .btn {
            padding: 10px 20px;
            font-size: 14px;
            background: var(--primary);
            color: #fff;
            border-radius: 12px;
            border: none;
            height: 44px;
            white-space: nowrap;
            transition: background 0.25s, transform 0.2s;
        }
        .subscribe-form .btn:hover {
            background: var(--accent);
            transform: translateY(-2px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 48px;
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }
        @media (max-width: 768px) {
            .site-footer {
                padding-top: 48px;
            }
            .site-footer h3 {
                margin-top: 24px;
            }
            .subscribe-form {
                max-width: 100%;
            }
            .footer-bottom {
                margin-top: 32px;
                padding: 16px 0;
            }
        }

        /* 响应式微调 */
        @media (max-width: 576px) {
            .category-hero .hero-actions {
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
            }
            .category-hero .hero-actions .btn {
                width: 100%;
            }
            .feature-card {
                padding: 20px;
            }
        }

/* roulang page: article */
:root {
            --primary: #1B4D3E;
            --primary-dark: #12392D;
            --primary-light: #E4EDE9;
            --accent: #C0A062;
            --accent-light: #F5EDE0;
            --bg: #FAF7F2;
            --surface: #FFFFFF;
            --text: #1F2624;
            --text-muted: #6B7572;
            --border: #E6DFD6;
            --radius-card: 16px;
            --radius-img: 12px;
            --radius-btn: 999px;
            --radius-badge: 6px;
            --radius-input: 12px;
            --shadow-card: 0 2px 12px rgba(27, 77, 62, 0.06);
            --shadow-hover: 0 10px 30px rgba(27, 77, 62, 0.12);
            --font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            letter-spacing: 0.2px;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 16px;
            padding-right: 16px;
        }

        /* ===== 悬浮胶囊导航 ===== */
        .site-nav {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1030;
            width: calc(100% - 32px);
            max-width: 1200px;
            background: rgba(255, 255, 255, 0.84);
            backdrop-filter: blur(18px) saturate(160%);
            -webkit-backdrop-filter: blur(18px) saturate(160%);
            border: 1px solid rgba(255, 255, 255, 0.55);
            border-radius: 999px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 8px 12px 8px 24px;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }

        .nav-brand__dot {
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            flex-shrink: 0;
        }

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

        .nav-link {
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 15px;
            color: var(--text);
            transition: all 0.25s ease;
            white-space: nowrap;
        }

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

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

        .nav-cta {
            margin-left: 8px;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            padding: 0;
            background: none;
            border: none;
            cursor: pointer;
            border-radius: 12px;
            transition: background 0.25s;
        }

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

        .nav-toggle .bar {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle[aria-expanded="true"] .bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .btn {
            display: inline-block;
            padding: 14px 30px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            text-align: center;
            border-radius: var(--radius-btn);
            border: 1px solid transparent;
            transition: all 0.25s ease;
            cursor: pointer;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(27, 77, 62, 0.25);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(27, 77, 62, 0.25);
            outline-offset: 2px;
        }

        .btn-sm {
            padding: 10px 20px;
            font-size: 14px;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            padding-top: 104px;
            padding-bottom: 8px;
        }

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

        .breadcrumb-nav a {
            color: var(--text-muted);
            transition: color 0.25s;
        }

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

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

        .breadcrumb-sep {
            color: var(--border);
            font-size: 13px;
        }

        /* ===== 文章主体 ===== */
        .article {
            max-width: 820px;
            margin: 0 auto;
            padding: 24px 0 40px;
        }

        .article__header {
            text-align: center;
            margin-bottom: 32px;
        }

        .article__badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .article__title {
            font-size: 38px;
            line-height: 1.3;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
            word-break: break-word;
        }

        .article__meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 24px;
            font-size: 14px;
            color: var(--text-muted);
            padding-bottom: 28px;
            border-bottom: 1px solid var(--border);
            flex-wrap: wrap;
        }

        .article__meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article__meta-item svg {
            width: 16px;
            height: 16px;
            stroke: var(--accent);
            flex-shrink: 0;
        }

        /* ===== 正文 ===== */
        .article__content {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text);
            padding-top: 28px;
        }

        .article__content h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.5;
            margin: 36px 0 16px;
            padding-left: 12px;
            border-left: 4px solid var(--primary);
            letter-spacing: 0.5px;
        }

        .article__content h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin: 28px 0 14px;
            letter-spacing: 0.3px;
        }

        .article__content p {
            margin-bottom: 1.2em;
            word-break: break-word;
        }

        .article__content img {
            display: block;
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-img);
            margin: 28px auto;
            border: 1px solid var(--border);
        }

        .article__content blockquote {
            background: var(--accent-light);
            border-left: 4px solid var(--accent);
            border-radius: 0 12px 12px 0;
            padding: 18px 24px;
            margin: 24px 0;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }

        .article__content ul,
        .article__content ol {
            margin: 16px 0;
            padding-left: 24px;
        }

        .article__content li {
            margin-bottom: 8px;
            position: relative;
        }

        .article__content ul li {
            list-style: none;
            padding-left: 18px;
        }

        .article__content ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
        }

        .article__content ol li {
            padding-left: 4px;
        }

        .article__content table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            margin: 28px 0;
            background: var(--surface);
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border);
            font-size: 15px;
        }

        .article__content th,
        .article__content td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid var(--border);
            font-size: 15px;
        }

        .article__content th {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        .article__content tr:last-child td {
            border-bottom: none;
        }

        .article__content code {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-radius: 6px;
            padding: 2px 6px;
            font-size: 14px;
        }

        .article__content pre {
            background: var(--primary-dark);
            color: #E4EDE9;
            border-radius: 12px;
            padding: 20px;
            overflow-x: auto;
            font-size: 14px;
            line-height: 1.6;
            margin: 28px 0;
        }

        .article__content pre code {
            background: none;
            color: inherit;
            padding: 0;
        }

        /* ===== 空态 ===== */
        .article__empty {
            text-align: center;
            padding: 80px 24px;
            background: var(--surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
        }

        .article__empty p {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .article__empty a {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 12px 28px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            transition: all 0.25s;
        }

        .article__empty a:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
        }

        /* ===== 标签区 ===== */
        .article__tags {
            margin: 40px 0 16px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .article-tag {
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 999px;
            letter-spacing: 0.2px;
        }

        .back-link {
            display: inline-block;
            color: var(--primary);
            font-size: 14px;
            font-weight: 500;
            margin: 0 0 8px;
            transition: color 0.25s, transform 0.25s;
        }

        .back-link:hover {
            color: var(--primary-dark);
            transform: translateX(-2px);
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            background: var(--primary-light);
            padding: 64px 0;
        }

        .related-section .related-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            text-align: center;
            margin-bottom: 36px;
            letter-spacing: 0.5px;
            position: relative;
        }

        .related-section .related-title::after {
            content: '';
            display: block;
            width: 48px;
            height: 3px;
            background: var(--accent);
            margin: 12px auto 0;
            border-radius: 999px;
        }

        .related-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            padding: 16px;
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
            border: 1px solid transparent;
        }

        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(27, 77, 62, 0.2);
        }

        .related-card__img {
            width: 100%;
            border-radius: var(--radius-img);
            aspect-ratio: 16 / 9;
            object-fit: cover;
            margin-bottom: 16px;
            border: 1px solid var(--border);
        }

        .related-card__title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            letter-spacing: 0.2px;
        }

        .related-card__date {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: auto;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .related-card__date svg {
            width: 14px;
            height: 14px;
            stroke: var(--accent);
        }

        /* ===== 上一篇 / 下一篇 ===== */
        .article-nav {
            max-width: 820px;
            margin: 0 auto;
            padding: 40px 16px 72px;
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .article-nav__link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 12px 22px;
            font-size: 14px;
            color: var(--text);
            transition: all 0.25s ease;
            max-width: 100%;
        }

        .article-nav__link:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: var(--shadow-card);
        }

        .article-nav__link svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
        }

        .article-nav__link--next {
            margin-left: auto;
        }

        .article-nav__link--disabled {
            opacity: 0.5;
            pointer-events: none;
            border-color: var(--border);
            color: var(--text-muted);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.72);
            padding: 64px 0 24px;
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .footer-brand__dot {
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            flex-shrink: 0;
        }

        .site-footer p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 12px;
            max-width: 360px;
        }

        .site-footer h3 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        .site-footer a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            line-height: 2.4;
            transition: color 0.25s ease, transform 0.25s ease;
        }

        .site-footer a:hover {
            color: #fff;
            transform: translateX(2px);
        }

        .footer-contact {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            margin-bottom: 12px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.5;
        }

        .footer-contact svg {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            color: var(--accent);
        }

        .subscribe-form {
            display: flex;
            gap: 8px;
            margin-top: 12px;
        }

        .subscribe-form input {
            flex: 1;
            height: 44px;
            border-radius: var(--radius-input);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            padding: 0 16px;
            font-size: 14px;
            outline: none;
            transition: border-color 0.25s, box-shadow 0.25s;
        }

        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .subscribe-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(192, 160, 98, 0.2);
        }

        .subscribe-form .btn {
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
            border-radius: var(--radius-input);
            padding: 0 20px;
            font-weight: 600;
            font-size: 14px;
            height: 44px;
            white-space: nowrap;
            transition: background 0.25s ease, transform 0.25s ease;
        }

        .subscribe-form .btn:hover {
            background: #d4b476;
            transform: translateY(-1px);
        }

        .footer-bottom {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
            letter-spacing: 0.3px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .nav-toggle {
                display: flex;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.96);
                backdrop-filter: blur(18px);
                -webkit-backdrop-filter: blur(18px);
                border-radius: 20px;
                box-shadow: 0 6px 24px rgba(0, 0, 0, 0.1);
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }

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

            .nav-link {
                text-align: center;
                padding: 12px 20px;
                font-size: 15px;
            }

            .nav-cta {
                margin: 8px 0 0;
                text-align: center;
                display: block;
            }

            .article__title {
                font-size: 30px;
            }

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

            .article-nav {
                flex-direction: column;
                align-items: stretch;
            }

            .article-nav__link {
                justify-content: center;
                margin-left: 0 !important;
            }
        }

        @media (max-width: 767.98px) {
            .breadcrumb-wrap {
                padding-top: 92px;
            }

            .article {
                padding: 20px 0 32px;
            }

            .article__title {
                font-size: 26px;
                line-height: 1.35;
            }

            .article__meta {
                gap: 16px;
                font-size: 13px;
            }

            .article__content {
                font-size: 15px;
                line-height: 1.8;
            }

            .article__content h2 {
                font-size: 18px;
                margin: 28px 0 12px;
            }

            .article__content h3 {
                font-size: 16px;
            }

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

            .site-footer {
                padding: 48px 0 20px;
            }

            .footer-bottom {
                margin-top: 32px;
                padding-top: 20px;
            }
        }

        @media (max-width: 575.98px) {
            .site-nav {
                top: 12px;
                width: calc(100% - 24px);
            }

            .nav-inner {
                padding: 6px 8px 6px 16px;
            }

            .nav-brand {
                font-size: 16px;
            }

            .breadcrumb-nav {
                font-size: 13px;
                gap: 6px;
            }

            .article__meta-item svg {
                width: 14px;
                height: 14px;
            }

            .related-card__title {
                font-size: 15px;
            }
        }