/* roulang page: index */
:root {
            --ink: #14181C;
            --primary: #0E1E2E;
            --accent: #B8894A;
            --paper: #F6F4EF;
            --card: #FFFFFF;
            --line: #E2DED6;
            --muted: #78746E;
            --success: #2F7D5C;
            --radius-sm: 2px;
            --radius: 4px;
            --radius-lg: 8px;
            --shadow: 0 1px 3px rgba(20, 24, 28, 0.04);
            --shadow-hover: 0 16px 32px rgba(20, 24, 28, 0.10);
            --transition: 0.25s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-en: "Inter", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--ink);
            background: var(--paper);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button {
            font-family: var(--font-sans);
            border: none;
            background: none;
            cursor: pointer;
        }

        input {
            font-family: var(--font-sans);
        }

        ul,
        ol {
            list-style: none;
        }

        .page-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .section-pad {
            padding: clamp(80px, 10vw, 128px) 0;
        }

        .eyebrow {
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.18em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 16px;
            display: block;
        }

        .section-title {
            font-size: clamp(26px, 3.5vw, 40px);
            font-weight: 700;
            line-height: 1.2;
            color: var(--ink);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--muted);
            max-width: 640px;
        }

        /* ===== 按钮 ===== */
        .btn-primary,
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.02em;
            transition: all var(--transition);
            line-height: 1.4;
            border: 1px solid transparent;
        }

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

        .btn-primary:hover {
            background: var(--ink);
            color: var(--paper);
            border-color: var(--ink);
            box-shadow: 0 8px 16px rgba(20, 24, 28, 0.12);
        }

        .btn-primary:focus {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 2px 4px rgba(20, 24, 28, 0.1);
        }

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

        .btn-secondary:hover {
            background: var(--ink);
            color: var(--paper);
        }

        .btn-secondary:focus {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

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

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

        .btn-light:hover {
            background: var(--paper);
            color: var(--ink);
            border-color: var(--paper);
        }

        .btn-light:focus {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        /* ===== 左侧竖向导航 ===== */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 150px;
            height: 100vh;
            background: var(--ink);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 28px 0 24px;
            transition: width var(--transition);
            overflow: hidden;
        }

        .brand-block {
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 0 12px;
            margin-bottom: 40px;
        }

        .brand-shield {
            width: 40px;
            height: 40px;
            margin-bottom: 10px;
            background: repeating-linear-gradient(135deg,
                    var(--primary) 0px, var(--primary) 6px,
                    var(--accent) 6px, var(--accent) 12px);
            border-radius: 6px;
            position: relative;
        }

        .brand-shield::after {
            content: "";
            position: absolute;
            top: 4px;
            left: 4px;
            right: 4px;
            bottom: 4px;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 3px;
        }

        .brand-text {
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.04em;
            line-height: 1.5;
            color: #F2EEE7;
            text-align: center;
            white-space: nowrap;
        }

        .side-menu {
            width: 100%;
            flex: 1;
            display: flex;
            flex-direction: column;
            padding-top: 8px;
        }

        .menu-item {
            display: flex;
            align-items: center;
            padding: 12px 16px 12px 18px;
            color: rgba(246, 244, 239, 0.72);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.1em;
            border-left: 2px solid transparent;
            transition: all var(--transition);
            position: relative;
        }

        .menu-item .menu-icon {
            width: 20px;
            text-align: center;
            margin-right: 10px;
            font-size: 14px;
            display: none;
        }

        .menu-item:hover {
            color: var(--accent);
            background: rgba(184, 137, 74, 0.08);
            border-left-color: var(--accent);
        }

        .menu-item.active {
            color: var(--accent);
            border-left-color: var(--accent);
            font-weight: 600;
        }

        .menu-item.active::before {
            content: "";
            position: absolute;
            left: -2px;
            top: 50%;
            transform: translateY(-50%);
            width: 2px;
            height: 28px;
            background: var(--accent);
            border-radius: 0 2px 2px 0;
        }

        .side-footer {
            padding: 16px 12px;
            text-align: center;
            font-size: 10px;
            color: rgba(246, 244, 239, 0.45);
            letter-spacing: 0.14em;
            line-height: 1.8;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            width: 100%;
        }

        /* 主内容区 */
        .main-wrapper {
            margin-left: 150px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left var(--transition);
        }

        .main-content {
            flex: 1;
        }

        /* ===== 移动端顶部导航 ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: var(--ink);
            z-index: 1100;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
        }

        .mobile-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #F2EEE7;
        }

        .mobile-brand .brand-shield {
            width: 28px;
            height: 28px;
            margin-bottom: 0;
            border-radius: 4px;
        }

        .mobile-brand .brand-shield::after {
            top: 3px;
            left: 3px;
            right: 3px;
            bottom: 3px;
            border-radius: 2px;
        }

        .mobile-brand-text {
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            line-height: 1.3;
        }

        .menu-toggle {
            width: 44px;
            height: 44px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            border-radius: var(--radius-sm);
        }

        .menu-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: #F2EEE7;
            border-radius: 2px;
            transition: all var(--transition);
        }

        .menu-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .menu-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-drawer {
            position: fixed;
            top: 64px;
            right: 0;
            bottom: 0;
            width: 280px;
            background: var(--ink);
            z-index: 1050;
            transform: translateX(100%);
            transition: transform 0.3s ease;
            padding: 24px 0;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .mobile-drawer .menu-item {
            padding: 14px 24px;
            font-size: 15px;
        }

        .mobile-drawer .menu-item .menu-icon {
            display: block;
        }

        .drawer-overlay {
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(20, 24, 28, 0.6);
            z-index: 1040;
            opacity: 0;
            visibility: hidden;
            transition: all var(--transition);
        }

        .drawer-overlay.open {
            opacity: 1;
            visibility: visible;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 640px;
            display: flex;
            align-items: center;
            background-image: linear-gradient(rgba(14, 30, 46, 0.62), rgba(20, 24, 28, 0.85)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            color: var(--paper);
        }

        .hero-inner {
            width: 100%;
        }

        .hero-content {
            max-width: 620px;
            padding: 80px 0;
        }

        .hero-eyebrow {
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.2em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 20px;
            display: block;
            text-align: left;
        }

        .hero h1 {
            font-size: clamp(34px, 5vw, 58px);
            font-weight: 800;
            line-height: 1.12;
            letter-spacing: -0.01em;
            margin-bottom: 24px;
            color: var(--paper);
            text-align: left;
        }

        .hero-sub {
            font-size: 17px;
            line-height: 1.7;
            color: rgba(246, 244, 239, 0.86);
            margin-bottom: 36px;
            max-width: 540px;
            text-align: left;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            justify-content: flex-start;
        }

        .hero .btn-primary {
            background: var(--accent);
            color: var(--ink);
            border-color: var(--accent);
        }

        .hero .btn-primary:hover {
            background: var(--paper);
            color: var(--ink);
            border-color: var(--paper);
        }

        .hero .btn-secondary {
            border-color: rgba(246, 244, 239, 0.85);
            color: var(--paper);
        }

        .hero .btn-secondary:hover {
            background: var(--paper);
            color: var(--ink);
            border-color: var(--paper);
        }

        /* ===== 品牌故事 ===== */
        .story {
            background: var(--paper);
            position: relative;
        }

        .story .story-text p {
            margin-bottom: 24px;
            color: var(--muted);
            font-size: 16px;
            line-height: 1.8;
        }

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

        .story-image-wrap img {
            border-radius: var(--radius);
            border: 1px solid var(--line);
            object-fit: cover;
            width: 100%;
            aspect-ratio: 4 / 3;
        }

        .story-caption {
            font-size: 13px;
            color: var(--muted);
            margin-top: 12px;
            text-align: center;
        }

        .story-stats {
            margin-top: 64px;
            border-top: 1px solid var(--line);
            padding-top: 40px;
            display: flex;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .stat-item {
            flex: 1;
            min-width: 180px;
            text-align: center;
            position: relative;
        }

        .stat-item:not(:last-child)::after {
            content: "";
            position: absolute;
            right: -16px;
            top: 10%;
            height: 80%;
            width: 1px;
            background: var(--line);
        }

        .stat-item i {
            color: var(--accent);
            font-size: 20px;
            margin-bottom: 10px;
            display: block;
        }

        .stat-item h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 4px;
        }

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

        /* ===== 精选内容 ===== */
        .featured {
            background: var(--card);
        }

        .featured-main {
            margin-bottom: 48px;
        }

        .featured-main .featured-img {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius);
            border: 1px solid var(--line);
        }

        .featured-main .featured-img img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            transition: transform 0.3s cubic-bezier(0.2, 0.6, 0.3, 1);
        }

        .featured-main .featured-img:hover img {
            transform: scale(1.04);
        }

        .featured-main .featured-body {
            padding: 24px 8px 24px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .featured-badge {
            display: inline-block;
            padding: 4px 12px;
            border: 1px solid var(--accent);
            border-radius: 999px;
            font-size: 12px;
            color: var(--accent);
            margin-bottom: 16px;
            font-weight: 600;
            align-self: flex-start;
        }

        .featured-body h3 {
            font-size: 24px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 12px;
            color: var(--ink);
        }

        .featured-body p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .featured-status {
            font-size: 13px;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .featured-status .in-stock {
            color: var(--success);
            font-weight: 600;
        }

        .featured-sub-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all 0.3s cubic-bezier(0.2, 0.6, 0.3, 1);
            box-shadow: var(--shadow);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .featured-sub-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }

        .featured-sub-card:focus-within {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .featured-sub-card .sub-img {
            overflow: hidden;
        }

        .featured-sub-card .sub-img img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            transition: transform 0.3s cubic-bezier(0.2, 0.6, 0.3, 1);
        }

        .featured-sub-card:hover .sub-img img {
            transform: scale(1.04);
        }

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

        .sub-tag {
            font-size: 12px;
            color: var(--accent);
            border: 1px solid var(--accent);
            border-radius: 999px;
            padding: 2px 10px;
            display: inline-block;
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .featured-sub-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--ink);
        }

        .featured-sub-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }

        .sub-link {
            color: var(--ink);
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition);
        }

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

        .sub-link i {
            transition: transform var(--transition);
        }

        .sub-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 最新资讯 ===== */
        .news {
            background: var(--paper);
        }

        .news-list {
            margin-top: 40px;
        }

        .news-row {
            border-bottom: 1px solid var(--line);
            padding: 24px 8px;
            transition: background var(--transition);
            position: relative;
        }

        .news-row::before {
            content: "";
            position: absolute;
            left: -8px;
            top: 0;
            width: 3px;
            height: 100%;
            background: var(--accent);
            opacity: 0;
            transition: opacity var(--transition);
            border-radius: 0 3px 3px 0;
        }

        .news-row:hover {
            background: rgba(184, 137, 74, 0.06);
        }

        .news-row:hover::before {
            opacity: 1;
        }

        .news-row:hover .news-arrow i {
            transform: translateX(4px);
        }

        .news-date {
            width: 110px;
            text-align: center;
            flex-shrink: 0;
            padding-right: 20px;
        }

        .news-date .day {
            font-size: 28px;
            font-weight: 800;
            color: var(--ink);
            line-height: 1.2;
            display: block;
        }

        .news-date .month {
            font-size: 13px;
            color: var(--muted);
            text-transform: uppercase;
            letter-spacing: 0.08em;
        }

        .news-content {
            padding: 0 24px;
        }

        .badge {
            display: inline-block;
            padding: 3px 10px;
            border: 1px solid var(--accent);
            border-radius: 999px;
            font-size: 12px;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 8px;
        }

        .news-content h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 6px;
        }

        .news-content h3 a {
            color: var(--ink);
            transition: color var(--transition);
        }

        .news-content h3 a:hover {
            color: var(--accent);
        }

        .news-content p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-arrow {
            flex-shrink: 0;
            padding-left: 16px;
        }

        .news-arrow a {
            width: 36px;
            height: 36px;
            border: 1px solid var(--line);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--muted);
            transition: all var(--transition);
        }

        .news-arrow a:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

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

        .empty-state {
            border: 1px dashed var(--line);
            border-radius: var(--radius);
            padding: 60px 40px;
            text-align: center;
            margin-top: 40px;
        }

        .empty-icon {
            font-size: 36px;
            color: var(--line);
            margin-bottom: 16px;
        }

        .empty-state p {
            color: var(--muted);
            font-size: 15px;
        }

        /* ===== 信任背书 ===== */
        .trust {
            background: var(--primary);
            color: #EDEAE3;
        }

        .trust .eyebrow {
            color: var(--accent);
        }

        .trust .section-title {
            color: #EDEAE3;
        }

        .trust-grid {
            margin-top: 48px;
            display: flex;
            gap: 48px;
            flex-wrap: wrap;
        }

        .trust-item {
            flex: 1;
            min-width: 200px;
            position: relative;
            padding: 0 24px;
        }

        .trust-item:not(:last-child) {
            border-right: 1px solid rgba(255, 255, 255, 0.12);
        }

        .trust-item i {
            font-size: 22px;
            color: var(--accent);
            margin-bottom: 16px;
            display: block;
        }

        .trust-item h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #F2EEE7;
        }

        .trust-item p {
            font-size: 13px;
            color: rgba(237, 234, 227, 0.6);
            line-height: 1.6;
        }

        /* ===== 订阅 CTA ===== */
        .cta-section {
            background-image: linear-gradient(rgba(20, 24, 28, 0.88), rgba(20, 24, 28, 0.88)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            color: var(--paper);
            text-align: center;
        }

        .cta-inner {
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-section h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 700;
            color: var(--paper);
            margin-bottom: 12px;
        }

        .cta-section p {
            color: rgba(246, 244, 239, 0.7);
            font-size: 15px;
            margin-bottom: 32px;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            margin-bottom: 16px;
        }

        .cta-form input[type="email"] {
            flex: 1;
            min-height: 48px;
            padding: 0 16px;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            font-size: 15px;
            color: var(--ink);
            transition: all var(--transition);
        }

        .cta-form input[type="email"]::placeholder {
            color: var(--muted);
        }

        .cta-form input[type="email"]:focus {
            border-color: var(--accent);
            outline: none;
            box-shadow: 0 0 0 3px rgba(184, 137, 74, 0.2);
        }

        .cta-form .btn-primary {
            flex-shrink: 0;
        }

        .cta-privacy {
            font-size: 12px;
            color: rgba(246, 244, 239, 0.5);
            margin-bottom: 32px;
        }

        .cta-btn-wrap {
            margin-top: 8px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--ink);
            color: rgba(246, 244, 239, 0.75);
            padding-top: 64px;
        }

        .footer-top {
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .footer-logo {
            font-size: 16px;
            font-weight: 700;
            color: #F2EEE7;
            margin-bottom: 12px;
            display: block;
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            font-size: 13px;
            color: rgba(246, 244, 239, 0.55);
            line-height: 1.7;
            max-width: 260px;
        }

        .footer-col h5 {
            font-size: 13px;
            font-weight: 700;
            color: #F2EEE7;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(246, 244, 239, 0.6);
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            padding: 24px 0 28px;
            text-align: center;
            font-size: 12px;
            color: rgba(246, 244, 239, 0.4);
        }

        .footer-bottom .domain-text {
            color: rgba(246, 244, 239, 0.55);
        }

        /* ===== 动画 ===== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero-eyebrow,
        .hero h1,
        .hero-sub,
        .hero-buttons {
            animation: fadeUp 0.7s ease both;
        }

        .hero-eyebrow {
            animation-delay: 0s;
        }

        .hero h1 {
            animation-delay: 0.08s;
        }

        .hero-sub {
            animation-delay: 0.16s;
        }

        .hero-buttons {
            animation-delay: 0.24s;
        }

        /* ===== 响应式 ===== */
        @media screen and (max-width: 1023.98px) {
            .side-nav {
                width: 64px;
            }

            .brand-text {
                display: none;
            }

            .brand-block {
                padding: 0 4px;
            }

            .menu-item .menu-text {
                display: none;
            }

            .menu-item .menu-icon {
                display: block;
                margin-right: 0;
                font-size: 16px;
            }

            .menu-item {
                justify-content: center;
                padding: 16px 0;
                border-left: none;
                border-bottom: 2px solid transparent;
            }

            .menu-item:hover {
                border-bottom-color: var(--accent);
                background: rgba(184, 137, 74, 0.08);
            }

            .menu-item.active {
                border-bottom-color: var(--accent);
            }

            .menu-item.active::before {
                display: none;
            }

            .side-footer {
                display: none;
            }

            .main-wrapper {
                margin-left: 64px;
            }

            .story-stats {
                gap: 24px;
            }

            .stat-item:not(:last-child)::after {
                right: -12px;
            }
        }

        @media screen and (max-width: 767.98px) {
            .side-nav {
                display: none;
            }

            .main-wrapper {
                margin-left: 0;
            }

            .mobile-header {
                display: flex;
            }

            .main-content {
                padding-top: 64px;
            }

            .page-container {
                padding: 0 20px;
            }

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

            .hero {
                min-height: 520px;
                align-items: center;
            }

            .hero-content {
                padding: 40px 0;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

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

            .story-stats {
                flex-direction: column;
                gap: 24px;
            }

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

            .featured-main .featured-body {
                padding: 24px 0;
            }

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

            .cta-form .btn-primary {
                width: 100%;
            }

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

            .footer-top .cell:last-child {
                margin-bottom: 0;
            }

            .trust-grid {
                flex-direction: column;
                gap: 32px;
            }

            .trust-item {
                padding: 0;
            }

            .trust-item:not(:last-child) {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                padding-bottom: 32px;
            }

            .news-date {
                width: 72px;
            }

            .news-content {
                padding: 0 12px;
            }

            .news-arrow {
                padding-left: 4px;
            }
        }

        @media screen and (max-width: 519.98px) {
            .page-container {
                padding: 0 16px;
            }

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

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

            .featured-sub-card .sub-body {
                padding: 20px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: article */
:root {
            --ink: #14181C;
            --primary: #0E1E2E;
            --accent: #B8894A;
            --paper: #F6F4EF;
            --card: #FFFFFF;
            --line: #E2DED6;
            --muted: #78746E;
            --success: #2F7D5C;
            --radius-sm: 2px;
            --radius: 4px;
            --radius-lg: 8px;
            --shadow-sm: 0 1px 3px rgba(20, 24, 28, 0.04);
            --shadow-hover: 0 16px 32px rgba(20, 24, 28, 0.10);
            --transition: 0.25s ease;
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-en: "Inter", "Helvetica Neue", Arial, sans-serif;
            --side-width: 150px;
            --container-max: 1200px;
        }

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

        html {
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-cn);
            background: var(--paper);
            color: var(--ink);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        button {
            font-family: var(--font-cn);
            cursor: pointer;
            border: none;
            background: none;
        }

        input {
            font-family: var(--font-cn);
        }

        ul,
        ol {
            list-style: none;
        }

        .site-shell {
            display: flex;
            min-height: 100vh;
        }

        /* ===================== 左侧竖向导航 ===================== */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--side-width);
            height: 100vh;
            background: var(--ink);
            display: flex;
            flex-direction: column;
            align-items: center;
            z-index: 200;
            overflow: hidden;
        }

        .side-logo {
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 28px 12px 20px;
            text-align: center;
            text-decoration: none;
            width: 100%;
        }

        .shield-icon {
            width: 40px;
            height: 40px;
            display: block;
            background: repeating-linear-gradient(135deg, var(--primary) 0px, var(--primary) 6px, var(--accent) 6px, var(--accent) 12px);
            border-radius: 6px 6px 14px 14px;
            border: 2px solid rgba(184, 137, 74, 0.5);
            margin-bottom: 10px;
            position: relative;
        }

        .shield-icon::after {
            content: "";
            position: absolute;
            inset: 5px;
            border-radius: 3px 3px 8px 8px;
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        .logo-text {
            color: #F6F4EF;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.04em;
            line-height: 1.35;
            display: block;
        }

        .side-menu {
            width: 100%;
            padding: 24px 0 0;
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: stretch;
        }

        .menu-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 13px 16px 13px 20px;
            color: rgba(246, 244, 239, 0.72);
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.1em;
            text-decoration: none;
            border-left: 2px solid transparent;
            transition: all var(--transition);
            position: relative;
        }

        .menu-item .menu-icon {
            font-size: 15px;
            width: 18px;
            text-align: center;
            color: rgba(184, 137, 74, 0.65);
            transition: color var(--transition);
        }

        .menu-item:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.03);
            border-left-color: var(--accent);
        }

        .menu-item:hover .menu-icon {
            color: var(--accent);
        }

        .menu-item.active {
            color: var(--accent);
            border-left-color: var(--accent);
            background: rgba(184, 137, 74, 0.06);
        }

        .menu-item.active .menu-icon {
            color: var(--accent);
        }

        .side-badge {
            padding: 16px 8px 24px;
            text-align: center;
            color: rgba(246, 244, 239, 0.4);
            font-size: 10px;
            letter-spacing: 0.18em;
            line-height: 1.6;
        }

        .side-badge .badge-line {
            display: block;
        }

        .side-badge .badge-copy {
            display: block;
            margin-top: 6px;
            font-size: 10px;
            opacity: 0.5;
        }

        /* ===================== 主内容区 ===================== */
        .main-wrapper {
            flex: 1;
            margin-left: var(--side-width);
            display: flex;
            flex-direction: column;
            min-height: 100vh;
            width: calc(100% - var(--side-width));
        }

        .page-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ===================== 移动端顶部 ===================== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: var(--ink);
            z-index: 300;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
        }

        .mobile-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
        }

        .mobile-logo .shield-icon {
            width: 28px;
            height: 28px;
            margin-bottom: 0;
            border-radius: 4px 4px 9px 9px;
        }

        .mobile-logo .logo-text {
            font-size: 13px;
        }

        .menu-toggle {
            width: 42px;
            height: 42px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            background: transparent;
            border: none;
        }

        .menu-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--paper);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .menu-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .menu-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-drawer {
            position: fixed;
            top: 64px;
            right: -280px;
            width: 280px;
            height: calc(100vh - 64px);
            background: var(--ink);
            z-index: 290;
            transition: right 0.3s ease;
            padding: 20px 0;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            right: 0;
        }

        .drawer-menu {
            display: flex;
            flex-direction: column;
        }

        .drawer-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 20px;
            color: rgba(246, 244, 239, 0.8);
            font-size: 14px;
            border-left: 2px solid transparent;
            transition: all var(--transition);
            text-decoration: none;
        }

        .drawer-item i {
            width: 20px;
            text-align: center;
            color: var(--accent);
        }

        .drawer-item:hover {
            background: rgba(255, 255, 255, 0.04);
            border-left-color: var(--accent);
            color: #fff;
        }

        .drawer-item.active {
            color: var(--accent);
            border-left-color: var(--accent);
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 64px 0 0 0;
            background: rgba(20, 24, 28, 0.4);
            z-index: 280;
        }

        .drawer-overlay.show {
            display: block;
        }

        /* ===================== 面包屑 ===================== */
        .breadcrumb-wrap {
            background: var(--card);
            border-bottom: 1px solid var(--line);
            padding: 16px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--muted);
            text-decoration: none;
            transition: color var(--transition);
        }

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

        .breadcrumb .sep {
            color: var(--line);
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--ink);
            font-weight: 600;
            max-width: 320px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ===================== 文章主体 ===================== */
        .article-section {
            padding: clamp(48px, 6vw, 80px) 0 clamp(56px, 7vw, 96px);
            background: var(--paper);
        }

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

        .article-header {
            margin-bottom: 40px;
            border-bottom: 1px solid var(--line);
            padding-bottom: 36px;
        }

        .article-title {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.01em;
            color: var(--ink);
            margin: 0 0 20px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            font-size: 14px;
            color: var(--muted);
        }

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

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

        .meta-tag {
            display: inline-block;
            border: 1px solid var(--accent);
            color: var(--accent);
            padding: 3px 12px;
            border-radius: 999px;
            font-size: 12px;
            letter-spacing: 0.06em;
            font-weight: 600;
        }

        /* 正文 */
        .article-body {
            font-size: 16px;
            line-height: 1.8;
            color: var(--ink);
        }

        .article-body p {
            margin-bottom: 24px;
        }

        .article-body h2 {
            font-size: clamp(20px, 2.5vw, 28px);
            font-weight: 700;
            margin: 48px 0 20px;
            line-height: 1.4;
            color: var(--ink);
            position: relative;
            padding-top: 16px;
        }

        .article-body h2::before {
            content: "";
            display: block;
            width: 40px;
            height: 2px;
            background: var(--accent);
            position: absolute;
            top: 0;
            left: 0;
        }

        .article-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin: 32px 0 16px;
            line-height: 1.4;
            color: var(--ink);
        }

        .article-body h4 {
            font-size: 17px;
            font-weight: 600;
            margin: 24px 0 12px;
            color: var(--ink);
        }

        .article-body ul {
            list-style: none;
            margin: 0 0 24px;
            padding: 0;
        }

        .article-body ul li {
            position: relative;
            padding-left: 20px;
            margin-bottom: 10px;
        }

        .article-body ul li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 12px;
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
        }

        .article-body ol {
            list-style: decimal;
            margin: 0 0 24px 20px;
            padding: 0;
        }

        .article-body ol li {
            margin-bottom: 10px;
            padding-left: 4px;
        }

        .article-body blockquote {
            background: var(--paper);
            border-left: 4px solid var(--accent);
            padding: 20px 24px;
            margin: 32px 0;
            font-size: 15px;
            line-height: 1.8;
            color: var(--primary);
            border-radius: 0 var(--radius) var(--radius) 0;
        }

        .article-body blockquote p {
            margin-bottom: 8px;
        }

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

        .article-body img {
            border-radius: var(--radius);
            border: 1px solid var(--line);
            width: 100%;
            margin: 28px 0;
        }

        .article-body figure {
            margin: 28px 0;
        }

        .article-body figure img {
            margin: 0 0 8px;
        }

        .article-body figcaption {
            font-size: 13px;
            color: var(--muted);
            text-align: center;
            line-height: 1.5;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 32px 0;
            font-size: 15px;
            border-radius: var(--radius);
            overflow: hidden;
        }

        .article-body table th {
            background: var(--primary);
            color: var(--paper);
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }

        .article-body table td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--line);
        }

        .article-body table tr:nth-child(even) {
            background: var(--paper);
        }

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

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

        .article-body code {
            background: var(--paper);
            padding: 2px 6px;
            border-radius: 3px;
            font-size: 14px;
            border: 1px solid var(--line);
        }

        .article-body pre {
            background: var(--primary);
            color: var(--paper);
            padding: 24px;
            border-radius: var(--radius);
            overflow-x: auto;
            margin: 32px 0;
            font-size: 14px;
            line-height: 1.7;
        }

        .article-body pre code {
            background: transparent;
            border: none;
            color: inherit;
            font-size: 14px;
        }

        .article-body hr {
            border: none;
            border-top: 1px solid var(--line);
            margin: 40px 0;
        }

        /* 内容未找到 */
        .not-found {
            text-align: center;
            padding: 80px 20px;
        }

        .not-found .nf-icon {
            font-size: 56px;
            color: var(--muted);
            margin-bottom: 24px;
        }

        .not-found h1 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
        }

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

        /* ===================== 按钮 ===================== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--ink);
            padding: 14px 28px;
            border: 1px solid var(--accent);
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.02em;
            text-decoration: none;
            transition: all var(--transition);
            line-height: 1.2;
        }

        .btn-primary:hover {
            background: var(--ink);
            color: var(--paper);
            border-color: var(--ink);
            box-shadow: 0 8px 16px rgba(20, 24, 28, 0.12);
            transform: translateY(-1px);
        }

        .btn-primary:focus {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--ink);
            padding: 14px 28px;
            border: 1px solid var(--ink);
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            text-decoration: none;
            transition: all var(--transition);
        }

        .btn-secondary:hover {
            background: var(--ink);
            color: var(--paper);
        }

        .btn-secondary:focus {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .btn-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--paper);
            color: var(--ink);
            padding: 14px 28px;
            border: 1px solid var(--paper);
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 700;
            text-decoration: none;
            transition: all var(--transition);
        }

        .btn-light:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--ink);
            transform: translateY(-1px);
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
        }

        .btn-light:focus {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        /* ===================== 相关推荐 ===================== */
        .related-section {
            background: var(--card);
            padding: clamp(48px, 6vw, 80px) 0;
            border-top: 1px solid var(--line);
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 36px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .section-eyebrow {
            display: block;
            font-size: 13px;
            letter-spacing: 0.18em;
            text-transform: uppercase;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 6px;
            font-family: var(--font-en);
        }

        .section-title {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            color: var(--ink);
            line-height: 1.3;
            margin: 0;
        }

        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--ink);
            text-decoration: none;
            padding: 8px 0;
            border-bottom: 1px solid var(--accent);
            transition: all var(--transition);
        }

        .back-link i {
            transition: transform var(--transition);
        }

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

        .back-link:hover i {
            transform: translateX(-4px);
        }

        .related-card {
            background: var(--paper);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: 100%;
            transition: all 0.3s cubic-bezier(0.2, 0.6, 0.3, 1);
            text-decoration: none;
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }

        .related-card:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .related-card .card-image {
            aspect-ratio: 4 / 3;
            overflow: hidden;
            position: relative;
        }

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

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

        .related-card .card-body {
            padding: 20px 20px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .card-tag {
            display: inline-block;
            align-self: flex-start;
            border: 1px solid var(--accent);
            color: var(--accent);
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.04em;
        }

        .related-card .card-title {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.45;
            color: var(--ink);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin: 0;
            transition: color var(--transition);
        }

        .related-card:hover .card-title {
            color: var(--accent);
        }

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

        .related-card .card-date i {
            font-size: 12px;
            color: var(--accent);
        }

        /* ===================== CTA 区 ===================== */
        .cta-section {
            background: var(--ink);
            padding: clamp(56px, 7vw, 88px) 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.18;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(14, 30, 46, 0.55), rgba(20, 24, 28, 0.85));
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-inner .section-eyebrow {
            color: var(--accent);
        }

        .cta-inner h2 {
            color: var(--paper);
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .cta-inner p {
            color: rgba(246, 244, 239, 0.75);
            font-size: 15px;
            margin-bottom: 32px;
            line-height: 1.7;
        }

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

        /* ===================== 页脚 ===================== */
        .site-footer {
            background: var(--ink);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 56px;
        }

        .footer-top {
            padding-bottom: 40px;
        }

        .footer-brand {
            padding-right: 20px;
        }

        .footer-logo {
            font-size: 17px;
            font-weight: 700;
            color: var(--paper);
            letter-spacing: 0.02em;
            display: block;
            margin-bottom: 10px;
        }

        .footer-brand p {
            color: rgba(246, 244, 239, 0.55);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        .footer-col {
            margin-bottom: 24px;
        }

        .footer-col h5 {
            color: var(--paper);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.06em;
        }

        .footer-col ul {
            margin: 0;
        }

        .footer-col li {
            margin-bottom: 8px;
        }

        .footer-col li,
        .footer-col li a {
            color: rgba(246, 244, 239, 0.55);
            font-size: 14px;
            transition: color var(--transition);
            text-decoration: none;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 18px 0;
            text-align: center;
        }

        .footer-bottom p {
            color: rgba(246, 244, 239, 0.35);
            font-size: 12px;
            margin: 0;
        }

        .domain-text {
            opacity: 0.7;
        }

        /* ===================== 响应式 ===================== */
        @media (max-width: 1023px) {
            .side-nav {
                display: none;
            }

            .main-wrapper {
                margin-left: 0;
                width: 100%;
            }

            .mobile-header {
                display: flex;
            }

            .site-footer {
                padding-top: 40px;
            }
        }

        @media (max-width: 767px) {
            .page-container {
                padding: 0 20px;
            }

            .article-section {
                padding-top: 36px;
            }

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

            .breadcrumb .current {
                max-width: 180px;
            }

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

            .cta-buttons .btn-primary,
            .cta-buttons .btn-light {
                justify-content: center;
            }

            .section-head {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .page-container {
                padding: 0 16px;
            }

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

            .article-body {
                font-size: 15px;
                line-height: 1.75;
            }

            .article-body blockquote {
                padding: 16px 18px;
                font-size: 14px;
            }

            .article-body h2 {
                font-size: 21px;
                margin-top: 40px;
            }

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

            .footer-top .cell {
                margin-bottom: 12px;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --ink: #14181C;
  --primary: #0E1E2E;
  --accent: #B8894A;
  --paper: #F6F4EF;
  --card: #FFFFFF;
  --line: #E2DED6;
  --muted: #78746E;
  --success: #2F7D5C;
  --danger: #C4473A;
  --radius-sm: 2px;
  --radius-md: 4px;
  --shadow-card: 0 1px 3px rgba(20, 24, 28, 0.04);
  --shadow-hover: 0 16px 32px rgba(20, 24, 28, 0.10);
  --transition: 0.25s ease;
  --side-width: 150px;
}
/* ===== 基础重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
  background: var(--paper);
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition), border-color var(--transition), background var(--transition); }
a:hover, a:focus { outline: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }
ul, ol { list-style: none; }
.page-container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.mobile-header, .mobile-drawer, .drawer-overlay { display: none; }
/* ===== 左侧竖向导航 ===== */
.side-nav {
  position: fixed;
  top: 0; left: 0;
  width: var(--side-width);
  height: 100vh;
  background: var(--ink);
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 28px 16px 20px;
}
.brand-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 40px;
  text-align: center;
}
.brand-logo svg { width: 40px; height: 40px; flex-shrink: 0; }
.brand-text {
  color: #F1EDE5;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.5;
}
.side-menu {
  flex: 1;
  display: flex;
  flex-direction: column;
  width: 100%;
  gap: 4px;
}
.menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 8px;
  color: rgba(241, 237, 229, 0.72);
  font-size: 13px;
  letter-spacing: 0.06em;
  border-left: 2px solid transparent;
  transition: all var(--transition);
}
.menu-item:hover { color: #F1EDE5; border-left-color: var(--accent); padding-left: 14px; }
.menu-item.active { color: var(--accent); border-left-color: var(--accent); font-weight: 700; }
.menu-icon { width: 16px; text-align: center; font-size: 14px; flex-shrink: 0; }
.side-footer {
  margin-top: 24px;
  text-align: center;
  color: rgba(241, 237, 229, 0.4);
  font-size: 10px;
  letter-spacing: 0.18em;
  line-height: 1.6;
  border-top: 1px solid rgba(241, 237, 229, 0.1);
  padding-top: 16px;
  width: 100%;
}
/* ===== 主内容区 ===== */
.main-content { margin-left: var(--side-width); min-height: 100vh; background: var(--paper); }
/* ===== 分类 Hero ===== */
.page-hero {
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
  background: var(--primary) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding: 80px 0;
  color: #F1EDE5;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(14, 30, 46, 0.62);
}
.page-hero .page-container { position: relative; z-index: 2; }
.hero-eyebrow {
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 16px;
  font-weight: 700;
}
.page-hero h1 {
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
  max-width: 680px;
}
.page-hero .hero-desc {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(241, 237, 229, 0.85);
  max-width: 560px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  background: var(--accent);
  color: var(--ink);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.btn-primary:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); box-shadow: 0 8px 16px rgba(20, 24, 28, 0.12); }
.btn-primary:focus { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn-primary:active { transform: translateY(1px); }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  background: transparent;
  color: #F1EDE5;
  border: 1px solid rgba(241, 237, 229, 0.7);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--transition);
}
.btn-secondary:hover { background: #F1EDE5; color: var(--ink); border-color: #F1EDE5; }
.btn-secondary:focus { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn-secondary:active { transform: translateY(1px); }
.btn-outline-dark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  transition: all var(--transition);
}
.btn-outline-dark:hover { background: var(--ink); color: var(--paper); }
.btn-outline-dark:focus { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn-outline-dark:active { transform: translateY(1px); }
/* ===== 板块通用 ===== */
.section-block { padding: clamp(72px, 10vw, 120px) 0; }
.section-eyebrow {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: 16px;
}
.section-desc { font-size: 16px; color: var(--muted); max-width: 520px; line-height: 1.8; }
/* ===== 图文交叉区 ===== */
.image-text-row { padding: 0 0 clamp(72px, 8vw, 100px); }
.image-text-row:last-child { padding-bottom: 0; }
.image-text-row .cell { margin-bottom: 24px; }
.media-figure { position: relative; border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-card); }
.media-figure img { width: 100%; height: 360px; object-fit: cover; border-radius: var(--radius-md); transition: transform 0.3s cubic-bezier(0.2, 0.6, 0.3, 1); }
.media-figure:hover img { transform: scale(1.03); }
.media-badge {
  position: absolute;
  top: 16px; left: 16px;
  display: inline-block;
  padding: 4px 12px;
  background: rgba(20, 24, 28, 0.75);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  border-radius: 999px;
  border: 1px solid rgba(184, 137, 74, 0.4);
}
.text-content { padding: 32px 8px 0 16px; }
.text-content.left { padding: 32px 16px 0 8px; }
.text-content h3 { font-size: clamp(22px, 2.6vw, 28px); font-weight: 700; line-height: 1.35; margin-bottom: 14px; color: var(--ink); }
.text-content p { font-size: 15px; color: var(--muted); line-height: 1.8; margin-bottom: 20px; }
.text-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 24px; }
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--line);
  color: var(--muted);
  background: var(--card);
}
.tag.gold { border-color: var(--accent); color: var(--accent); }
.tag.green { border-color: var(--success); color: var(--success); }
/* ===== 数据区 ===== */
.stats-section {
  background: var(--primary);
  padding: clamp(64px, 8vw, 96px) 0;
  color: #F1EDE5;
}
.stats-grid { border-top: 1px solid rgba(241, 237, 229, 0.12); display: flex; }
.stats-item {
  flex: 1;
  padding: 32px 24px;
  border-right: 1px solid rgba(241, 237, 229, 0.1);
  text-align: center;
}
.stats-item:last-child { border-right: none; }
.stats-icon { font-size: 28px; color: var(--accent); margin-bottom: 14px; }
.stats-item h4 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.stats-item p { font-size: 13px; color: rgba(241, 237, 229, 0.55); line-height: 1.6; }
/* ===== 流程区 ===== */
.process-section { background: var(--card); }
.process-list { margin-top: 40px; }
.process-item { padding: 32px 0; border-bottom: 1px solid var(--line); display: flex; gap: 32px; align-items: flex-start; }
.process-item:first-child { border-top: 1px solid var(--line); }
.process-num { font-size: 28px; font-weight: 800; color: var(--accent); line-height: 1; min-width: 64px; font-family: "Inter", "Helvetica Neue", Arial, sans-serif; }
.process-item h4 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.process-item p { font-size: 14px; color: var(--muted); line-height: 1.7; }
/* ===== FAQ ===== */
.faq-section { background: var(--paper); }
.faq-wrap { max-width: 760px; margin: 40px auto 0; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item.active .faq-question { font-weight: 700; }
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-question {
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 4px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: color var(--transition);
}
.faq-question:hover { color: var(--accent); }
.faq-icon {
  width: 18px; height: 18px;
  position: relative;
  flex-shrink: 0;
  transition: transform var(--transition);
}
.faq-icon::before, .faq-icon::after {
  content: '';
  position: absolute;
  background: var(--accent);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.faq-icon::before { width: 18px; height: 2px; }
.faq-icon::after { width: 2px; height: 18px; }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.faq-item.active .faq-answer { max-height: 300px; }
.faq-answer p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  padding: 0 4px 20px;
}
/* ===== CTA ===== */
.cta-section {
  position: relative;
  background: var(--ink) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding: clamp(80px, 10vw, 120px) 0;
  text-align: center;
  color: #F1EDE5;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(14, 30, 46, 0.7);
}
.cta-section .page-container { position: relative; z-index: 2; }
.cta-section h2 {
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 800;
  margin-bottom: 14px;
}
.cta-section p {
  font-size: 16px;
  color: rgba(241, 237, 229, 0.75);
  max-width: 520px;
  margin: 0 auto 32px;
  line-height: 1.8;
}
/* ===== 页脚 ===== */
.site-footer { background: var(--ink); padding-top: 60px; color: rgba(241, 237, 229, 0.6); }
.footer-top { padding-bottom: 40px; border-bottom: 1px solid rgba(241, 237, 229, 0.08); }
.footer-brand .footer-logo {
  font-size: 18px;
  font-weight: 700;
  color: #F1EDE5;
  letter-spacing: 0.02em;
}
.footer-brand p { font-size: 13px; line-height: 1.8; color: rgba(241, 237, 229, 0.5); margin-top: 14px; max-width: 280px; }
.footer-col h5 { font-size: 14px; font-weight: 700; color: #F1EDE5; margin-bottom: 18px; letter-spacing: 0.04em; }
.footer-col ul li { margin-bottom: 10px; font-size: 13px; line-height: 1.7; }
.footer-col ul li a { color: rgba(241, 237, 229, 0.5); transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--accent); }
.footer-bottom { padding: 24px 0 28px; text-align: center; font-size: 12px; color: rgba(241, 237, 229, 0.35); line-height: 1.6; }
.footer-bottom .domain-text { color: rgba(241, 237, 229, 0.45); }
/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  :root { --side-width: 64px; }
  .side-nav { padding: 20px 8px 16px; }
  .brand-text { display: none; }
  .brand-logo { margin-bottom: 28px; }
  .menu-text { display: none; }
  .menu-item { justify-content: center; padding: 12px 6px; border-left: none; border-bottom: 2px solid transparent; }
  .menu-item:hover { padding-left: 6px; border-bottom-color: var(--accent); }
  .menu-item.active { border-left: none; border-bottom-color: var(--accent); }
  .menu-icon { font-size: 16px; }
  .side-footer { display: none; }
}
@media (max-width: 767px) {
  :root { --side-width: 0px; }
  .side-nav { display: none; }
  .main-content { margin-left: 0; padding-top: 64px; }
  .page-container { padding: 0 20px; }
  .page-hero { min-height: 520px; padding: 60px 0; }
  .page-hero h1 { font-size: 34px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-actions .btn-primary, .hero-actions .btn-secondary { width: 100%; justify-content: center; }
  /* 移动端顶部导航 */
  .mobile-header {
    display: flex;
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 64px;
    background: var(--ink);
    z-index: 200;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
  }
  .mobile-logo { display: flex; align-items: center; gap: 8px; color: #F1EDE5; font-size: 13px; font-weight: 700; letter-spacing: 0.03em; }
  .mobile-logo svg { width: 28px; height: 28px; }
  .mobile-logo span { line-height: 1.3; }
  .hamburger-btn { width: 40px; height: 40px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
  .hamburger-btn span { display: block; width: 22px; height: 2px; background: #F1EDE5; transition: transform var(--transition), opacity var(--transition); }
  .hamburger-btn.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .hamburger-btn.active span:nth-child(2) { opacity: 0; }
  .hamburger-btn.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .mobile-drawer {
    display: flex;
    position: fixed;
    top: 0; right: -280px;
    width: 280px;
    height: 100vh;
    background: var(--ink);
    z-index: 300;
    flex-direction: column;
    padding: 80px 24px 32px;
    transition: right var(--transition);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.3);
  }
  .mobile-drawer.open { right: 0; }
  .mobile-drawer .drawer-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 8px;
    color: rgba(241, 237, 229, 0.75);
    font-size: 14px;
    border-bottom: 1px solid rgba(241, 237, 229, 0.08);
  }
  .mobile-drawer .drawer-link:hover { color: var(--accent); padding-left: 12px; }
  .mobile-drawer .drawer-link.active { color: var(--accent); font-weight: 700; border-left: 2px solid var(--accent); }
  .drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 250;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
  }
  .drawer-overlay.active { opacity: 1; pointer-events: auto; }
  /* 响应式区块 */
  .image-text-row .cell { margin-bottom: 16px; }
  .media-figure img { height: 240px; }
  .text-content, .text-content.left { padding: 24px 4px 0; }
  .stats-grid { flex-direction: column; }
  .stats-item { border-right: none; border-bottom: 1px solid rgba(241, 237, 229, 0.1); }
  .stats-item:last-child { border-bottom: none; }
  .process-item { flex-direction: column; gap: 12px; padding: 24px 0; }
  .process-num { font-size: 24px; }
  .faq-question { font-size: 14px; }
  .footer-top { gap: 24px; }
  /* CTA */
  .cta-section h2 { font-size: 26px; }
  .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
  .footer-bottom { padding: 20px 16px 24px; }
}
/* ===== 动画 ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-up { opacity: 0; }
.animated .fade-up { animation: fadeUp 0.7s ease both; }
.animated .fade-up:nth-child(1) { animation-delay: 0.08s; }
.animated .fade-up:nth-child(2) { animation-delay: 0.16s; }
.animated .fade-up:nth-child(3) { animation-delay: 0.24s; }
.animated .fade-up:nth-child(4) { animation-delay: 0.32s; }
.animated .fade-up:nth-child(5) { animation-delay: 0.4s; }

/* roulang page: category2 */
/* =====================================================
           Design Tokens & Reset
        ===================================================== */
        :root {
            --ink: #14181C;
            --primary: #0E1E2E;
            --accent: #B8894A;
            --paper: #F6F4EF;
            --card: #FFFFFF;
            --line: #E2DED6;
            --muted: #78746E;
            --success: #2F7D5C;
            --radius-sm: 2px;
            --radius-md: 4px;
            --radius-lg: 8px;
            --shadow-sm: 0 1px 3px rgba(20, 24, 28, 0.04);
            --shadow-md: 0 16px 32px rgba(20, 24, 28, 0.10);
            --transition: 0.25s ease;
            --side-width: 150px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Inter", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--paper);
            color: var(--ink);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

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

        ul,
        ol {
            list-style: none;
        }

        /* =====================================================
           Layout Shell
        ===================================================== */
        .page-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .main-content {
            margin-left: var(--side-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .main-content .site-footer {
            margin-top: auto;
        }

        /* =====================================================
           Left Vertical Navigation (Desktop)
        ===================================================== */
        .side-layout {
            position: fixed;
            left: 0;
            top: 0;
            width: var(--side-width);
            height: 100vh;
            background: var(--ink);
            z-index: 200;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 28px 0 24px;
            overflow-y: auto;
        }

        .side-brand {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            padding: 0 12px 24px;
            border-bottom: 1px solid rgba(246, 244, 239, 0.12);
            width: 100%;
        }

        .brand-shield {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #0E1E2E 40%, #B8894A 40%, #B8894A 55%, #0E1E2E 55%);
            border: 1px solid rgba(246, 244, 239, 0.35);
            clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
            margin-bottom: 10px;
        }

        .brand-name {
            font-size: 12px;
            color: #F6F4EF;
            letter-spacing: 0.04em;
            line-height: 1.5;
            font-weight: 600;
        }

        .side-menu {
            width: 100%;
            padding: 28px 0;
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
        }

        .side-menu .menu-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            padding: 14px 8px;
            color: rgba(246, 244, 239, 0.72);
            font-size: 12px;
            letter-spacing: 0.1em;
            border-left: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition), background var(--transition);
            width: 100%;
        }

        .side-menu .menu-icon {
            font-size: 18px;
        }

        .side-menu .menu-item:hover {
            color: var(--accent);
            background: rgba(184, 137, 74, 0.08);
        }

        .side-menu .menu-item.active {
            color: var(--accent);
            border-left-color: var(--accent);
            background: rgba(184, 137, 74, 0.06);
        }

        .side-badge {
            font-size: 10px;
            color: rgba(246, 244, 239, 0.4);
            text-align: center;
            letter-spacing: 0.18em;
            padding: 0 12px;
            line-height: 1.6;
            border-top: 1px solid rgba(246, 244, 239, 0.10);
            padding-top: 20px;
            width: 100%;
        }

        /* ====================================================
           Mobile Header & Drawer
        ==================================================== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: var(--ink);
            z-index: 300;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
        }

        .mobile-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #F6F4EF;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.04em;
        }

        .mobile-brand .mini-shield {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, #0E1E2E 40%, #B8894A 40%, #B8894A 55%, #0E1E2E 55%);
            clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
            border: 1px solid rgba(246, 244, 239, 0.3);
        }

        .mobile-menu-btn {
            width: 44px;
            height: 44px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
        }

        .mobile-menu-btn span {
            display: block;
            width: 22px;
            height: 2px;
            background: #F6F4EF;
            transition: transform var(--transition), opacity var(--transition);
        }

        .mobile-menu-btn.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .mobile-menu-btn.active span:nth-child(2) {
            opacity: 0;
        }

        .mobile-menu-btn.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-drawer {
            position: fixed;
            top: 64px;
            right: -280px;
            width: 280px;
            height: calc(100vh - 64px);
            background: var(--ink);
            z-index: 299;
            transition: right var(--transition);
            padding: 20px 0;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            right: 0;
        }

        .mobile-drawer .menu-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 24px;
            color: rgba(246, 244, 239, 0.78);
            font-size: 14px;
            border-left: 2px solid transparent;
            transition: color var(--transition), background var(--transition), border-color var(--transition);
        }

        .mobile-drawer .menu-item:hover {
            color: var(--accent);
            background: rgba(184, 137, 74, 0.06);
        }

        .mobile-drawer .menu-item.active {
            color: var(--accent);
            border-left-color: var(--accent);
            background: rgba(184, 137, 74, 0.08);
        }

        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(20, 24, 28, 0.5);
            z-index: 298;
            opacity: 0;
            visibility: hidden;
            transition: opacity var(--transition), visibility var(--transition);
        }

        .drawer-overlay.open {
            opacity: 1;
            visibility: visible;
        }

        /* ====================================================
           Buttons & Common Components
        ==================================================== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.02em;
            border: 1px solid;
            transition: all var(--transition);
            line-height: 1.4;
        }

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

        .btn-primary:hover {
            background: var(--ink);
            border-color: var(--ink);
            color: var(--paper);
            box-shadow: 0 8px 16px rgba(20, 24, 28, 0.12);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

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

        .btn-outline:hover {
            background: var(--ink);
            color: var(--paper);
        }

        .btn-outline-light {
            background: transparent;
            border-color: #F6F4EF;
            color: #F6F4EF;
        }

        .btn-outline-light:hover {
            background: #F6F4EF;
            color: var(--ink);
        }

        .eyebrow {
            font-family: var(--font-num);
            font-size: 13px;
            letter-spacing: 0.2em;
            text-transform: uppercase;
            color: var(--accent);
            font-weight: 700;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: clamp(26px, 3.5vw, 38px);
            font-weight: 700;
            line-height: 1.2;
            color: var(--ink);
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.8;
            color: var(--muted);
            max-width: 640px;
        }

        /* ====================================================
           Category Hero
        ==================================================== */
        .category-hero {
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: center;
            background-size: cover;
            background-position: center 35%;
            padding: 80px 0;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(14, 30, 46, 0.72), rgba(20, 24, 28, 0.88));
        }

        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 760px;
        }

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

        .category-hero h1 {
            color: #F6F4EF;
            font-size: clamp(30px, 4.5vw, 48px);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }

        .hero-sub {
            color: rgba(246, 244, 239, 0.85);
            font-size: 16px;
            line-height: 1.8;
            max-width: 600px;
            margin-bottom: 28px;
        }

        /* ====================================================
           Value Section
        ==================================================== */
        .value-section {
            background: var(--paper);
            padding: clamp(70px, 8vw, 110px) 0;
        }

        .value-section .grid-x {
            align-items: center;
        }

        .value-photo {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-sm);
        }

        .value-photo img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }

        .value-photo .photo-caption {
            padding: 12px 16px;
            font-size: 13px;
            color: var(--muted);
            background: var(--card);
            border-top: 1px solid var(--line);
        }

        .value-points {
            margin-top: 0;
        }

        .value-row {
            display: flex;
            gap: 16px;
            padding: 22px 0;
            border-bottom: 1px solid var(--line);
        }

        .value-row:first-child {
            padding-top: 0;
        }

        .value-row:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .value-row i {
            font-size: 22px;
            color: var(--accent);
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(184, 137, 74, 0.3);
            border-radius: 50%;
            background: rgba(184, 137, 74, 0.08);
        }

        .value-row h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--ink);
        }

        .value-row p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }

        /* ====================================================
           Exhibit Section — Offset Card Wall
        ==================================================== */
        .exhibit-section {
            background: var(--card);
            padding: clamp(70px, 8vw, 110px) 0;
            border-top: 1px solid var(--line);
        }

        .exhibit-header {
            margin-bottom: 48px;
        }

        .exhibit-grid {
            align-items: stretch;
        }

        .exhibit-col {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .offset-col {
            position: relative;
        }

        @media (min-width: 1024px) {
            .offset-col {
                margin-top: 40px;
            }
        }

        .signed-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition), box-shadow var(--transition);
            display: flex;
            flex-direction: column;
        }

        .signed-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }

        .signed-card .card-thumb {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

        .signed-card .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

        .signed-card:hover .card-thumb img {
            transform: scale(1.04);
        }

        .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(20, 24, 28, 0.82);
            color: #F6F4EF;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 999px;
            letter-spacing: 0.04em;
            border: 1px solid rgba(184, 137, 74, 0.4);
        }

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

        .signed-card .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 8px;
            color: var(--ink);
        }

        .signed-card .card-body p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 12px;
        }

        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            border: 1px solid var(--accent);
            color: var(--accent);
            background: transparent;
        }

        .tag-success {
            border-color: var(--success);
            color: var(--success);
        }

        .tag-muted {
            border-color: #AAA;
            color: #666;
        }

        .arrow-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            transition: gap var(--transition), color var(--transition);
        }

        .arrow-link i {
            font-size: 13px;
            transition: transform var(--transition);
        }

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

        .arrow-link:hover i {
            transform: translateX(4px);
        }

        /* ====================================================
           Authentication Section
        ==================================================== */
        .auth-section {
            background: var(--primary);
            padding: clamp(70px, 8vw, 110px) 0;
        }

        .auth-section .eyebrow {
            color: var(--accent);
        }

        .auth-section .section-title {
            color: #F6F4EF;
        }

        .auth-section .section-desc {
            color: rgba(246, 244, 239, 0.7);
        }

        .auth-header {
            margin-bottom: 48px;
        }

        .auth-grid {
            border-top: 1px solid rgba(246, 244, 239, 0.12);
        }

        .auth-item {
            padding: 36px 28px 28px;
            border-bottom: 1px solid rgba(246, 244, 239, 0.12);
        }

        @media (min-width: 1024px) {
            .auth-item {
                border-bottom: none;
                border-right: 1px solid rgba(246, 244, 239, 0.12);
            }
            .auth-item:last-child {
                border-right: none;
            }
        }

        .auth-item .auth-icon {
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent);
            border: 1px solid rgba(184, 137, 74, 0.4);
            border-radius: 50%;
            background: rgba(184, 137, 74, 0.1);
            margin-bottom: 18px;
        }

        .auth-item h3 {
            color: #F6F4EF;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .auth-item p {
            color: rgba(246, 244, 239, 0.65);
            font-size: 14px;
            line-height: 1.7;
        }

        /* ====================================================
           FAQ Section
        ==================================================== */
        .faq-section {
            background: var(--paper);
            padding: clamp(70px, 8vw, 110px) 0;
        }

        .faq-container {
            max-width: 860px;
        }

        .faq-heading {
            margin-bottom: 40px;
        }

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

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

        .faq-question {
            width: 100%;
            min-height: 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 4px;
            font-size: 15px;
            font-weight: 500;
            color: var(--ink);
            text-align: left;
            background: transparent;
            transition: color var(--transition);
        }

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

        .faq-question .faq-icon {
            position: relative;
            width: 18px;
            height: 18px;
            flex-shrink: 0;
        }

        .faq-question .faq-icon::before,
        .faq-question .faq-icon::after {
            content: "";
            position: absolute;
            background: var(--accent);
            transition: transform var(--transition);
            border-radius: 2px;
        }

        .faq-question .faq-icon::before {
            width: 18px;
            height: 2px;
            top: 8px;
            left: 0;
        }

        .faq-question .faq-icon::after {
            width: 2px;
            height: 18px;
            left: 8px;
            top: 0;
        }

        .faq-item.open .faq-question {
            font-weight: 700;
        }

        .faq-item.open .faq-icon::after {
            transform: scaleY(0);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease, padding 0.25s ease;
        }

        .faq-answer p {
            padding: 0 4px 20px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--muted);
        }

        /* ====================================================
           Bottom CTA
        ==================================================== */
        .cta-section {
            background: var(--ink);
            position: relative;
            overflow: hidden;
            padding: clamp(70px, 8vw, 100px) 0;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
            opacity: 0.18;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
        }

        .cta-inner h2 {
            color: #F6F4EF;
            font-size: clamp(26px, 3.5vw, 38px);
            font-weight: 700;
            margin-bottom: 14px;
        }

        .cta-inner p {
            color: rgba(246, 244, 239, 0.7);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .cta-inner .btn {
            margin: 0 6px 10px;
        }

        /* ====================================================
           Footer
        ==================================================== */
        .site-footer {
            background: var(--ink);
            border-top: 1px solid rgba(246, 244, 239, 0.08);
            padding: 60px 0 28px;
        }

        .footer-top {
            padding-bottom: 40px;
        }

        .footer-brand .footer-logo {
            display: block;
            font-size: 18px;
            font-weight: 700;
            color: #F6F4EF;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .footer-brand p {
            font-size: 13px;
            color: rgba(246, 244, 239, 0.55);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: #F6F4EF;
            margin-bottom: 14px;
            letter-spacing: 0.06em;
        }

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

        .footer-col ul li {
            font-size: 13px;
            color: rgba(246, 244, 239, 0.5);
            line-height: 1.6;
        }

        .footer-col ul li a {
            color: rgba(246, 244, 239, 0.6);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(246, 244, 239, 0.08);
            padding-top: 24px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 12px;
            color: rgba(246, 244, 239, 0.4);
        }

        .domain-text {
            color: rgba(246, 244, 239, 0.3);
        }

        /* ====================================================
           Responsive Breakpoints
        ==================================================== */
        @media (min-width: 768px) and (max-width: 1023px) {
            :root {
                --side-width: 64px;
            }

            .side-layout {
                width: 64px;
            }

            .side-brand {
                padding: 0 8px 16px;
            }

            .brand-name {
                display: none;
            }

            .brand-shield {
                width: 34px;
                height: 34px;
            }

            .side-menu .menu-item {
                padding: 14px 0;
            }

            .side-menu .menu-text {
                display: none;
            }

            .side-badge {
                display: none;
            }

            .page-container {
                padding: 0 24px;
            }

            .value-section .value-photo img {
                height: 320px;
            }
        }

        @media (max-width: 767px) {
            .side-layout {
                display: none;
            }

            .main-content {
                margin-left: 0;
            }

            .mobile-header {
                display: flex;
            }

            .main-content {
                padding-top: 64px;
            }

            .page-container {
                padding: 0 20px;
            }

            .category-hero {
                min-height: 480px;
                padding: 60px 0;
            }

            .category-hero h1 {
                font-size: 28px;
            }

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

            .value-section,
            .exhibit-section,
            .auth-section,
            .faq-section,
            .cta-section {
                padding: 56px 0;
            }

            .value-photo img {
                height: 240px;
            }

            .value-points {
                margin-top: 32px;
            }

            .auth-item {
                padding: 24px 16px;
            }

            .auth-item:last-child {
                border-bottom: none;
            }

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

            .footer-col {
                margin-bottom: 28px;
            }

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

        /* ====================================================
           FadeUp Animation
        ==================================================== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero-content .eyebrow {
            animation: fadeUp 0.7s ease both;
        }

        .hero-content h1 {
            animation: fadeUp 0.7s ease 0.08s both;
        }

        .hero-content .hero-sub {
            animation: fadeUp 0.7s ease 0.16s both;
        }

        .hero-content .btn-group {
            animation: fadeUp 0.7s ease 0.24s both;
        }

        .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category3 */
:root {
            --ink: #14181C;
            --primary: #0E1E2E;
            --accent: #B8894A;
            --paper: #F6F4EF;
            --card: #FFFFFF;
            --line: #E2DED6;
            --muted: #78746E;
            --success: #2F7D5C;
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Inter", "Helvetica Neue", Arial, sans-serif;
            --radius-btn: 2px;
            --radius-card: 4px;
            --radius-badge: 999px;
            --shadow-card: 0 1px 3px rgba(20, 24, 28, 0.04);
            --shadow-hover: 0 16px 32px rgba(20, 24, 28, 0.10);
            --transition: 0.25s ease;
            --side-width: 150px;
            --gap-section: clamp(80px, 10vw, 128px);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.8;
            color: var(--ink);
            background: var(--paper);
            -webkit-font-smoothing: antialiased;
            animation: pageFade 0.5s ease;
        }

        @keyframes pageFade {
            from {
                opacity: 0;
            }
            to {
                opacity: 1;
            }
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            padding: 0;
        }

        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            font-weight: 700;
            line-height: 1.2;
        }

        p {
            margin: 0;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .page-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        body.no-scroll {
            overflow: hidden;
        }

        /* ===== 侧边导航 ===== */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--side-width);
            height: 100vh;
            background: var(--ink);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 28px 12px 20px;
        }

        .side-logo {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
            margin-bottom: 32px;
            width: 100%;
        }

        .logo-shield {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg,
                    #0E1E2E 25%,
                    #B8894A 25%,
                    #B8894A 40%,
                    #0E1E2E 40%,
                    #0E1E2E 60%,
                    #B8894A 60%,
                    #B8894A 75%,
                    #0E1E2E 75%);
            clip-path: polygon(50% 0%, 100% 15%, 100% 60%, 85% 80%, 50% 100%, 15% 80%, 0% 60%, 0% 15%);
            display: block;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 12px;
            color: var(--paper);
            letter-spacing: 0.04em;
            line-height: 1.5;
            text-align: center;
            font-weight: 600;
        }

        .side-menu {
            display: flex;
            flex-direction: column;
            gap: 6px;
            width: 100%;
            flex: 1;
        }

        .menu-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 8px;
            color: rgba(246, 244, 239, 0.72);
            font-size: 14px;
            letter-spacing: 0.06em;
            border-left: 2px solid transparent;
            transition: all var(--transition);
            border-radius: 0;
        }

        .menu-item:hover {
            color: var(--paper);
            border-left-color: var(--accent);
            background: rgba(184, 137, 74, 0.08);
        }

        .menu-item.active {
            color: var(--accent);
            border-left-color: var(--accent);
            background: rgba(184, 137, 74, 0.06);
        }

        .menu-icon {
            width: 20px;
            text-align: center;
            font-size: 16px;
            flex-shrink: 0;
        }

        .menu-text {
            font-size: 14px;
            line-height: 1.4;
        }

        .side-footer {
            text-align: center;
            padding-top: 20px;
            color: rgba(246, 244, 239, 0.5);
            font-size: 10px;
            letter-spacing: 0.14em;
            line-height: 1.9;
        }

        .side-foot-line {
            display: block;
        }

        .side-foot-copy {
            display: block;
            margin-top: 4px;
            opacity: 0.7;
        }

        /* ===== 主内容区 ===== */
        .main-wrapper {
            margin-left: var(--side-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .main-content {
            flex: 1;
        }

        /* ===== 移动端顶部导航 ===== */
        .mobile-header {
            display: none;
        }

        .mobile-overlay {
            display: none;
        }

        .mobile-drawer {
            display: none;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.02em;
            border-radius: var(--radius-btn);
            border: 1px solid transparent;
            transition: all var(--transition);
            line-height: 1.2;
            text-align: center;
        }

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

        .btn-primary:hover {
            background: var(--ink);
            color: var(--paper);
            border-color: var(--ink);
            box-shadow: 0 8px 16px rgba(20, 24, 28, 0.12);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 4px 8px rgba(20, 24, 28, 0.10);
        }

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

        .btn-secondary:hover {
            background: var(--ink);
            color: var(--paper);
        }

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

        .btn-light {
            background: transparent;
            color: var(--paper);
            border-color: rgba(246, 244, 239, 0.8);
        }

        .btn-light:hover {
            background: var(--paper);
            color: var(--ink);
        }

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

        /* ===== 眉题 ===== */
        .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.18em;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .eyebrow--light {
            color: var(--accent);
        }

        /* ===== 分类 Hero ===== */
        .cat-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 80px 0;
        }

        .cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(14, 30, 46, 0.62), rgba(20, 24, 28, 0.85));
        }

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

        .cat-hero h1 {
            font-size: clamp(32px, 4.5vw, 52px);
            font-weight: 800;
            line-height: 1.12;
            letter-spacing: -0.01em;
            color: var(--paper);
            margin-bottom: 18px;
        }

        .cat-hero .hero-sub {
            font-size: 17px;
            line-height: 1.75;
            color: rgba(246, 244, 239, 0.9);
            max-width: 600px;
            margin-bottom: 32px;
        }

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

        /* ===== 通用板块标题 ===== */
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }

        .section-head .eyebrow {
            display: block;
        }

        .section-head h2 {
            font-size: clamp(26px, 3.5vw, 40px);
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 16px;
        }

        .section-head p {
            color: var(--muted);
            font-size: 16px;
            line-height: 1.8;
        }

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

        .section-dark {
            background: var(--primary);
            color: var(--paper);
        }

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

        .section-paper {
            background: var(--paper);
        }

        /* ===== 序号列表 ===== */
        .series-list {
            padding: var(--gap-section) 0;
            background: var(--paper);
        }

        .series-item {
            display: grid;
            grid-template-columns: 140px 1fr;
            gap: 40px;
            padding: 48px 0;
            border-bottom: 1px solid var(--line);
            align-items: start;
        }

        .series-item:first-of-type {
            border-top: 1px solid var(--line);
        }

        .series-num {
            font-family: var(--font-num);
            font-size: clamp(42px, 4vw, 64px);
            font-weight: 800;
            letter-spacing: -0.03em;
            color: transparent;
            -webkit-text-stroke: 1.5px var(--accent);
            line-height: 1;
        }

        .series-content h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .series-content p {
            color: var(--muted);
            max-width: 640px;
            font-size: 15px;
            line-height: 1.8;
        }

        .series-meta {
            display: inline-flex;
            gap: 8px;
            margin-top: 14px;
            flex-wrap: wrap;
        }

        .tag {
            display: inline-block;
            padding: 4px 10px;
            border: 1px solid var(--accent);
            color: var(--accent);
            border-radius: var(--radius-badge);
            font-size: 12px;
            letter-spacing: 0.04em;
            background: transparent;
        }

        /* ===== 图文区 ===== */
        .lifestyle-gallery {
            padding: var(--gap-section) 0;
            background: var(--card);
        }

        .gallery-row {
            margin-bottom: 64px;
        }

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

        .gallery-media {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }

        .gallery-media img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .gallery-media:hover img {
            transform: scale(1.03);
        }

        .gallery-body {
            padding: 24px 12px;
        }

        .gallery-body .tag {
            margin-bottom: 16px;
        }

        .gallery-body h3 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .gallery-body p {
            color: var(--muted);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .gallery-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            color: var(--primary);
            border-bottom: 1px solid var(--accent);
            padding-bottom: 2px;
            transition: all var(--transition);
        }

        .gallery-link:hover {
            color: var(--accent);
            border-bottom-width: 2px;
            gap: 12px;
        }

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

        /* ===== 品质保障 ===== */
        .quality-bar {
            padding: var(--gap-section) 0;
            background: var(--primary);
            color: var(--paper);
        }

        .quality-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
        }

        .quality-item {
            text-align: center;
            padding: 0 16px;
            border-right: 1px solid rgba(246, 244, 239, 0.14);
        }

        .quality-item:last-child {
            border-right: none;
        }

        .quality-icon {
            font-size: 32px;
            color: var(--accent);
            margin-bottom: 18px;
            display: block;
        }

        .quality-item h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .quality-item p {
            font-size: 13px;
            line-height: 1.7;
            color: rgba(246, 244, 239, 0.72);
        }

        /* ===== CTA 横幅 ===== */
        .cta-banner {
            position: relative;
            padding: var(--gap-section) 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            text-align: center;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(14, 30, 46, 0.72);
        }

        .cta-banner .page-container {
            position: relative;
            z-index: 2;
        }

        .cta-banner h2 {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 800;
            color: var(--paper);
            margin-bottom: 14px;
        }

        .cta-banner p {
            color: rgba(246, 244, 239, 0.85);
            font-size: 16px;
            margin-bottom: 32px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-banner .btn-primary:hover {
            background: var(--paper);
            border-color: var(--paper);
            color: var(--ink);
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--gap-section) 0;
            background: var(--card);
        }

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

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
            min-height: 64px;
            padding: 16px 0;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            text-align: left;
            background: transparent;
            transition: color var(--transition);
            cursor: pointer;
        }

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

        .faq-question .faq-icon {
            font-size: 20px;
            color: var(--accent);
            transition: transform 0.25s ease;
            flex-shrink: 0;
            width: 22px;
            text-align: center;
        }

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

        .faq-item.open .faq-question {
            font-weight: 700;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease;
        }

        .faq-answer-inner {
            padding: 0 40px 24px 0;
            font-size: 14px;
            line-height: 1.75;
            color: var(--muted);
        }

        /* ===== 底部 CTA ===== */
        .bottom-cta {
            padding: var(--gap-section) 0;
            background: var(--ink);
            color: var(--paper);
            text-align: center;
        }

        .bottom-cta h2 {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 800;
            margin-bottom: 14px;
        }

        .bottom-cta p {
            color: rgba(246, 244, 239, 0.76);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto 36px;
        }

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

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--ink);
            border-top: 1px solid rgba(246, 244, 239, 0.08);
        }

        .footer-top {
            padding: 48px 0 36px;
        }

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

        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--paper);
            display: block;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            color: rgba(246, 244, 239, 0.64);
            font-size: 14px;
            line-height: 1.75;
            max-width: 300px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 600;
            color: var(--paper);
            margin-bottom: 14px;
            letter-spacing: 0.08em;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: rgba(246, 244, 239, 0.64);
            font-size: 14px;
            line-height: 1.6;
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-col ul li {
            color: rgba(246, 244, 239, 0.64);
            font-size: 14px;
            line-height: 1.6;
        }

        .footer-bottom {
            border-top: 1px solid rgba(246, 244, 239, 0.1);
            padding: 22px 0;
            text-align: center;
        }

        .footer-bottom p {
            color: rgba(246, 244, 239, 0.48);
            font-size: 12px;
            letter-spacing: 0.04em;
        }

        .domain-text {
            color: rgba(246, 244, 239, 0.6);
        }

        /* ===== 响应式适配 ===== */
        @media (max-width: 1023px) and (min-width: 768px) {
            .side-nav {
                width: 64px;
                padding: 20px 8px;
            }

            .side-logo {
                margin-bottom: 24px;
            }

            .logo-shield {
                width: 34px;
                height: 34px;
            }

            .logo-text {
                display: none;
            }

            .side-footer {
                display: none;
            }

            .menu-item {
                justify-content: center;
                padding: 12px 4px;
            }

            .menu-text {
                display: none;
            }

            .menu-icon {
                font-size: 18px;
            }

            .main-wrapper {
                margin-left: 64px;
            }

            .quality-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }

            .quality-item {
                border-right: none;
                border-bottom: 1px solid rgba(246, 244, 239, 0.14);
                padding-bottom: 24px;
            }
        }

        @media (max-width: 767px) {
            .side-nav {
                display: none;
            }

            .main-wrapper {
                margin-left: 0;
                padding-top: 64px;
            }

            .mobile-header {
                display: flex;
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 64px;
                background: var(--ink);
                z-index: 1100;
                align-items: center;
                justify-content: space-between;
                padding: 0 16px;
                box-shadow: 0 2px 12px rgba(20, 24, 28, 0.2);
            }

            .mobile-logo {
                display: flex;
                align-items: center;
                gap: 10px;
            }

            .mobile-logo-mark {
                width: 28px;
                height: 28px;
                background: linear-gradient(135deg,
                        #0E1E2E 25%,
                        #B8894A 25%,
                        #B8894A 40%,
                        #0E1E2E 40%,
                        #0E1E2E 60%,
                        #B8894A 60%,
                        #B8894A 75%,
                        #0E1E2E 75%);
                clip-path: polygon(50% 0%, 100% 15%, 100% 60%, 85% 80%, 50% 100%, 15% 80%, 0% 60%, 0% 15%);
                flex-shrink: 0;
            }

            .mobile-logo-text {
                font-size: 14px;
                font-weight: 700;
                color: var(--paper);
                letter-spacing: 0.03em;
                line-height: 1.2;
            }

            .menu-toggle {
                display: flex;
                flex-direction: column;
                justify-content: center;
                align-items: center;
                width: 42px;
                height: 42px;
                gap: 5px;
                background: transparent;
                border-radius: var(--radius-btn);
            }

            .menu-toggle .bar {
                display: block;
                width: 22px;
                height: 2px;
                background: var(--paper);
                border-radius: 2px;
                transition: all var(--transition);
            }

            .menu-toggle.open .bar:nth-child(1) {
                transform: translateY(7px) rotate(45deg);
            }

            .menu-toggle.open .bar:nth-child(2) {
                opacity: 0;
            }

            .menu-toggle.open .bar:nth-child(3) {
                transform: translateY(-7px) rotate(-45deg);
            }

            .mobile-overlay {
                display: block;
                position: fixed;
                inset: 64px 0 0 0;
                background: rgba(20, 24, 28, 0.65);
                z-index: 1050;
                opacity: 0;
                visibility: hidden;
                transition: all var(--transition);
            }

            .mobile-overlay.show {
                opacity: 1;
                visibility: visible;
            }

            .mobile-drawer {
                display: block;
                position: fixed;
                top: 64px;
                right: 0;
                width: 300px;
                height: calc(100vh - 64px);
                background: var(--ink);
                z-index: 1060;
                transform: translateX(100%);
                transition: transform 0.3s ease;
                padding: 28px 24px;
                overflow-y: auto;
            }

            .mobile-drawer.open {
                transform: translateX(0);
            }

            .drawer-link {
                display: block;
                padding: 14px 8px;
                color: rgba(246, 244, 239, 0.8);
                font-size: 16px;
                font-weight: 500;
                border-left: 2px solid transparent;
                margin-bottom: 4px;
                transition: all var(--transition);
            }

            .drawer-link:hover {
                color: var(--paper);
                background: rgba(184, 137, 74, 0.08);
                border-left-color: var(--accent);
            }

            .drawer-link.active {
                color: var(--accent);
                border-left-color: var(--accent);
                background: rgba(184, 137, 74, 0.06);
            }

            .page-container {
                padding: 0 20px;
            }

            .cat-hero {
                min-height: 520px;
                padding: 64px 0;
            }

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

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

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

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

            .section-head {
                margin-bottom: 40px;
            }

            .series-item {
                grid-template-columns: 1fr;
                gap: 14px;
                padding: 36px 0;
            }

            .series-num {
                font-size: 40px;
                -webkit-text-stroke: 1px var(--accent);
            }

            .gallery-row {
                margin-bottom: 48px;
            }

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

            .quality-item {
                border-right: none;
                padding: 0 8px;
            }

            .quality-icon {
                font-size: 26px;
                margin-bottom: 12px;
            }

            .footer-top {
                padding: 36px 0 24px;
            }

            .footer-col {
                margin-bottom: 24px;
            }

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

            .bottom-cta .cta-actions {
                flex-direction: column;
                align-items: stretch;
                padding: 0 20px;
            }

            .bottom-cta .cta-actions .btn {
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .page-container {
                padding: 0 16px;
            }

            .quality-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .quality-item {
                border-bottom: 1px solid rgba(246, 244, 239, 0.14);
                padding-bottom: 20px;
            }

            .series-item {
                gap: 10px;
            }

            .cat-hero h1 {
                font-size: 28px;
            }

            .mobile-logo-text {
                font-size: 13px;
            }
        }

/* roulang page: category4 */
:root {
            --ink: #14181C;
            --primary: #0E1E2E;
            --accent: #B8894A;
            --paper: #F6F4EF;
            --card: #FFFFFF;
            --line: #E2DED6;
            --muted: #78746E;
            --success: #2F7D5C;
            --radius: 4px;
            --radius-sm: 2px;
            --shadow-sm: 0 1px 3px rgba(20, 24, 28, 0.04);
            --shadow-md: 0 16px 32px rgba(20, 24, 28, 0.10);
            --transition: 0.25s ease;
            --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-en: "Inter", "Helvetica Neue", Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-cn);
            background: var(--paper);
            color: var(--ink);
            line-height: 1.7;
            margin: 0;
        }
        body.no-scroll {
            overflow: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition), background var(--transition);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 2px;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }
        .page-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ---------- 按钮 ---------- */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 15px;
            letter-spacing: 0.02em;
            border: 1px solid transparent;
            transition: all var(--transition);
        }
        .btn-gold {
            background: var(--accent);
            color: var(--ink);
            border-color: var(--accent);
        }
        .btn-gold:hover {
            background: var(--ink);
            color: #F6F4EF;
            border-color: var(--ink);
            box-shadow: 0 8px 16px rgba(20, 24, 28, 0.12);
        }
        .btn-outline-light {
            background: transparent;
            color: #F6F4EF;
            border-color: rgba(246, 244, 239, 0.8);
        }
        .btn-outline-light:hover {
            background: #F6F4EF;
            color: var(--ink);
            border-color: #F6F4EF;
        }
        .btn-outline-dark {
            background: transparent;
            color: var(--ink);
            border-color: var(--ink);
        }
        .btn-outline-dark:hover {
            background: var(--ink);
            color: var(--paper);
            border-color: var(--ink);
        }
        .btn-lg {
            padding: 16px 38px;
            font-size: 16px;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        /* ---------- 眉题 ---------- */
        .eyebrow {
            display: inline-block;
            font-size: 13px;
            letter-spacing: 0.18em;
            text-transform: uppercase;
            font-weight: 600;
            color: var(--muted);
            margin-bottom: 14px;
        }
        .eyebrow.gold {
            color: var(--accent);
        }
        .section-head {
            margin-bottom: 48px;
        }
        .section-head h2 {
            font-size: clamp(26px, 3.5vw, 40px);
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin: 0 0 16px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--muted);
            max-width: 640px;
            line-height: 1.8;
        }

        /* ---------- 左侧竖向导航 ---------- */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 150px;
            height: 100vh;
            background: var(--ink);
            z-index: 100;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            padding: 28px 10px 22px;
            overflow: hidden;
        }
        .side-brand {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 14px;
            text-align: center;
        }
        .shield-mark {
            width: 42px;
            height: 48px;
            display: inline-block;
            background: linear-gradient(135deg, #0E1E2E 45%, #B8894A 45%, #B8894A 48%, #14181C 48%, #14181C 52%, #F6F4EF 52%, #F6F4EF 55%, #0E1E2E 55%);
            clip-path: polygon(50% 0, 100% 20%, 88% 88%, 50% 100%, 12% 88%, 0 20%);
            box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25);
        }
        .brand-text {
            color: #F6F4EF;
            font-size: 12px;
            letter-spacing: 0.04em;
            line-height: 1.5;
            font-weight: 600;
        }
        .side-menu {
            display: flex;
            flex-direction: column;
            gap: 2px;
            margin-top: 14px;
        }
        .menu-item {
            display: flex;
            align-items: flex-start;
            gap: 9px;
            padding: 10px 8px;
            color: rgba(246, 244, 239, 0.72);
            font-size: 13px;
            line-height: 1.4;
            border-left: 2px solid transparent;
            transition: all var(--transition);
        }
        .menu-item .menu-icon {
            font-size: 14px;
            margin-top: 2px;
            width: 16px;
            text-align: center;
        }
        .menu-item:hover {
            color: var(--accent);
            border-left-color: var(--accent);
        }
        .menu-item.active {
            color: #F6F4EF;
            border-left-color: var(--accent);
        }
        .menu-item.active .menu-icon {
            color: var(--accent);
        }
        .side-foot {
            text-align: center;
            font-size: 11px;
            color: rgba(246, 244, 239, 0.38);
            line-height: 1.8;
            letter-spacing: 0.08em;
        }

        /* ---------- 移动端顶部导航 ---------- */
        .mobile-head {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: var(--ink);
            z-index: 103;
            align-items: center;
            justify-content: space-between;
            padding: 0 20px;
            box-shadow: 0 1px 6px rgba(0, 0, 0, 0.18);
        }
        .mobile-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #F6F4EF;
            font-size: 13px;
            font-weight: 600;
            line-height: 1.3;
        }
        .shield-mark.small {
            width: 24px;
            height: 28px;
            background: linear-gradient(135deg, #0E1E2E 42%, #B8894A 42%, #B8894A 46%, #14181C 46%, #14181C 52%, #F6F4EF 52%, #F6F4EF 56%, #0E1E2E 56%);
            clip-path: polygon(50% 0, 100% 20%, 88% 88%, 50% 100%, 12% 88%, 0 20%);
        }
        .burger {
            background: transparent;
            border: none;
            display: inline-flex;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            justify-content: center;
            align-items: center;
        }
        .burger span {
            width: 22px;
            height: 2px;
            background: #F6F4EF;
            display: block;
            transition: all var(--transition);
        }
        .burger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .burger.open span:nth-child(2) {
            opacity: 0;
        }
        .burger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .drawer {
            position: fixed;
            top: 64px;
            right: 0;
            bottom: 0;
            width: 300px;
            max-width: 82vw;
            background: var(--ink);
            z-index: 104;
            transform: translateX(100%);
            transition: transform 0.3s ease;
            padding: 24px 20px;
            display: flex;
            flex-direction: column;
            gap: 4px;
            overflow-y: auto;
        }
        .drawer.open {
            transform: translateX(0);
        }
        .drawer-item {
            display: flex;
            align-items: center;
            gap: 12px;
            color: rgba(246, 244, 239, 0.76);
            font-size: 15px;
            padding: 14px 14px;
            border-left: 2px solid transparent;
            transition: all var(--transition);
        }
        .drawer-item:hover {
            background: var(--primary);
            color: #fff;
            border-left-color: var(--accent);
        }
        .drawer-item.active {
            color: #fff;
            border-left-color: var(--accent);
        }
        .drawer-item i {
            width: 20px;
            text-align: center;
            color: var(--accent);
        }
        .drawer-mask {
            position: fixed;
            inset: 64px 0 0 0;
            background: rgba(20, 24, 28, 0.55);
            z-index: 102;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }
        .drawer-mask.show {
            opacity: 1;
            visibility: visible;
        }

        /* ---------- 主内容 ---------- */
        .main-wrap {
            margin-left: 150px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ---------- 分类 Hero ---------- */
        .cat-hero {
            position: relative;
            background-color: var(--primary);
            min-height: 480px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .cat-hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
        }
        .cat-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(14, 30, 46, 0.82) 20%, rgba(20, 24, 28, 0.62) 72%, rgba(20, 24, 28, 0.8) 100%);
        }
        .cat-hero-inner {
            position: relative;
            z-index: 2;
            padding-top: 80px;
            padding-bottom: 80px;
        }
        .hero-caption {
            max-width: 640px;
            color: #F6F4EF;
        }
        .hero-caption h1 {
            font-size: clamp(34px, 5vw, 58px);
            font-weight: 800;
            line-height: 1.12;
            letter-spacing: -0.01em;
            margin: 0 0 18px;
        }
        .hero-caption p {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(246, 244, 239, 0.82);
            margin-bottom: 32px;
            max-width: 520px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ---------- 会员成长路径（时间线） ---------- */
        .member-path {
            padding: clamp(80px, 10vw, 128px) 0;
            background: var(--paper);
        }
        .timeline-wrap {
            position: relative;
            max-width: 900px;
            padding-left: 20px;
        }
        .timeline-wrap::before {
            content: "";
            position: absolute;
            left: 58px;
            top: 10px;
            bottom: 30px;
            width: 2px;
            background: linear-gradient(to bottom, var(--accent), var(--line));
        }
        .timeline-item {
            position: relative;
            display: flex;
            gap: 28px;
            margin-bottom: 36px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-dot {
            width: 78px;
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            position: relative;
            z-index: 2;
        }
        .timeline-dot .dot-inner {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--card);
            border: 1px solid var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-en);
            font-size: 18px;
            font-weight: 800;
            color: var(--accent);
            box-shadow: var(--shadow-sm);
        }
        .timeline-card {
            flex: 0 1 520px;
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 26px 28px;
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: 18px;
            align-items: flex-start;
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .timeline-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .timeline-item:nth-child(even) .timeline-card {
            transform: translateY(26px);
        }
        .timeline-item:nth-child(even) .timeline-card:hover {
            transform: translateY(22px);
        }
        .timeline-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(184, 137, 74, 0.12);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }
        .timeline-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .timeline-card p {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.7;
            margin: 0;
        }
        .timeline-tag {
            display: inline-block;
            margin-top: 12px;
            border: 1px solid var(--line);
            border-radius: 999px;
            padding: 3px 12px;
            font-size: 12px;
            color: var(--accent);
            border-color: rgba(184, 137, 74, 0.5);
        }

        /* ---------- 会员服务覆盖 ---------- */
        .service-coverage {
            padding: clamp(70px, 8vw, 110px) 0;
            background: var(--card);
        }
        .coverage-media {
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-sm);
        }
        .coverage-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }
        .coverage-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .coverage-list li {
            display: flex;
            gap: 18px;
            padding: 22px 0;
            border-bottom: 1px solid var(--line);
        }
        .coverage-list li:first-child {
            padding-top: 6px;
        }
        .coverage-list li:last-child {
            border-bottom: none;
        }
        .coverage-list i {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: rgba(184, 137, 74, 0.12);
            color: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }
        .coverage-list h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .coverage-list p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.65;
            margin: 0;
        }

        /* ---------- 统计条 ---------- */
        .stat-strip {
            background: var(--primary);
            padding: 56px 0;
        }
        .stat-strip .stat-cell {
            text-align: center;
            color: #F6F4EF;
            border-left: 1px solid rgba(246, 244, 239, 0.12);
        }
        .stat-strip .stat-cell:first-child {
            border-left: none;
        }
        .stat-strip .stat-num {
            font-family: var(--font-en);
            font-size: 36px;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 6px;
        }
        .stat-strip .stat-label {
            font-size: 14px;
            color: rgba(246, 244, 239, 0.72);
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            padding: clamp(70px, 8vw, 110px) 0;
            background: var(--paper);
        }
        .faq-list {
            max-width: 860px;
        }
        .faq-item {
            border-bottom: 1px solid var(--line);
        }
        .faq-q {
            width: 100%;
            background: transparent;
            border: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 15px;
            font-weight: 600;
            color: var(--ink);
            padding: 20px 4px;
            text-align: left;
            transition: color var(--transition);
        }
        .faq-q:hover {
            color: var(--accent);
        }
        .faq-plus {
            font-size: 22px;
            line-height: 1;
            color: var(--accent);
            transition: transform 0.25s ease;
            font-weight: 400;
            flex-shrink: 0;
            margin-left: 16px;
        }
        .faq-item.open .faq-plus {
            transform: rotate(45deg);
        }
        .faq-a {
            display: none;
            padding: 0 28px 22px 4px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--muted);
        }
        .faq-item.open .faq-a {
            display: block;
        }

        /* ---------- 底部 CTA ---------- */
        .cta-panel {
            background: var(--ink);
            color: #F6F4EF;
            padding: clamp(70px, 8vw, 110px) 0;
            text-align: center;
        }
        .cta-panel h2 {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .cta-panel p {
            font-size: 16px;
            color: rgba(246, 244, 239, 0.7);
            margin-bottom: 34px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-panel .btn-gold:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--ink);
            box-shadow: 0 8px 20px rgba(184, 137, 74, 0.25);
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background: var(--ink);
            border-top: 1px solid rgba(246, 244, 239, 0.08);
            color: #F6F4EF;
            margin-top: auto;
        }
        .site-footer .footer-top {
            padding: 60px 0 32px;
        }
        .site-footer .footer-brand span {
            font-size: 18px;
            font-weight: 700;
            display: block;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            color: rgba(246, 244, 239, 0.62);
            line-height: 1.7;
        }
        .site-footer h5 {
            font-size: 14px;
            font-weight: 700;
            margin: 18px 0 14px;
            color: rgba(246, 244, 239, 0.9);
        }
        .site-footer ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .site-footer li {
            margin-bottom: 10px;
            font-size: 14px;
            color: rgba(246, 244, 239, 0.6);
        }
        .site-footer li a {
            color: rgba(246, 244, 239, 0.6);
        }
        .site-footer li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(246, 244, 239, 0.1);
            padding: 22px 0;
            text-align: center;
            font-size: 12px;
            color: rgba(246, 244, 239, 0.46);
        }
        .domain-text {
            opacity: 0.7;
        }

        /* ---------- 响应式 ---------- */
        @media (max-width: 1023.98px) {
            .side-nav {
                display: none;
            }
            .main-wrap {
                margin-left: 0;
            }
            .mobile-head {
                display: flex;
            }
            .main-wrap {
                padding-top: 64px;
            }
            .cat-hero {
                min-height: auto;
            }
            .cat-hero-inner {
                padding-top: 72px;
                padding-bottom: 72px;
            }
            .coverage-media {
                margin-bottom: 28px;
            }
            .stat-strip .stat-cell {
                border-left: none;
                margin-bottom: 28px;
            }
        }
        @media (max-width: 767.98px) {
            .page-container {
                padding: 0 20px;
            }
            .hero-caption h1 {
                font-size: 32px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .btn {
                width: 100%;
                max-width: 320px;
            }
            .timeline-wrap {
                padding-left: 0;
            }
            .timeline-wrap::before {
                left: 28px;
            }
            .timeline-item {
                flex-direction: column;
                gap: 12px;
            }
            .timeline-dot {
                width: auto;
                flex-direction: row;
                gap: 14px;
                padding-left: 0;
            }
            .timeline-dot .dot-inner {
                width: 44px;
                height: 44px;
                font-size: 15px;
            }
            .timeline-card {
                flex: 1;
                width: 100%;
                flex-direction: column;
                gap: 12px;
                padding: 22px;
            }
            .timeline-item:nth-child(even) .timeline-card {
                transform: none;
            }
            .timeline-item:nth-child(even) .timeline-card:hover {
                transform: none;
            }
            .coverage-list li {
                flex-direction: row;
            }
            .footer-top .cell {
                margin-bottom: 24px;
            }
        }
        @media (max-width: 520px) {
            .hero-caption p {
                font-size: 15px;
            }
            .member-path,
            .service-coverage,
            .faq-section,
            .cta-panel {
                padding-top: 56px;
                padding-bottom: 56px;
            }
        }