/* roulang page: index */
:root {
            --c-primary: #1F2D2A;
            --c-primary-light: #33433E;
            --c-accent: #B08D5B;
            --c-accent-soft: #E8DCC8;
            --c-bg: #F6F2EA;
            --c-bg-deep: #1F2D2A;
            --c-surface: #FFFCF5;
            --c-text: #1A1A18;
            --c-text-light: #5C625C;
            --c-text-on-dark: #F6F2EA;
            --c-border: rgba(31, 45, 42, 0.14);
            --c-emphasis: #8C4A32;
            --shadow-sm: 0 1px 3px rgba(31,45,42,0.05);
            --shadow-md: 0 4px 24px rgba(31,45,42,0.07), 0 1px 4px rgba(31,45,42,0.06);
            --shadow-lg: 0 8px 40px rgba(31,45,42,0.10);
            --radius-card: 6px;
            --radius-btn: 4px;
            --radius-img: 4px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
            background-color: var(--c-bg);
            color: var(--c-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.28s ease;
        }

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

        input,
        textarea {
            font-family: inherit;
        }

        :focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 2px;
        }

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

        @media (max-width: 1023px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }

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

        /* 导航刊头 */
        .top-bar {
            background-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
            font-size: 12px;
            letter-spacing: 0.08em;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 16px;
            text-align: center;
        }

        .masthead {
            background-color: var(--c-bg);
            border-bottom: 1px solid var(--c-border);
            padding-top: 20px;
            padding-bottom: 20px;
            position: sticky;
            top: 0;
            z-index: 50;
        }

        .masthead-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .brand-logo {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--c-primary);
            white-space: nowrap;
            line-height: 1.2;
        }

        .brand-logo a {
            color: inherit;
        }

        .brand-divider {
            width: 1px;
            height: 20px;
            background-color: var(--c-border);
            flex-shrink: 0;
            margin: 0 16px;
            display: none;
        }

        @media (min-width: 1024px) {
            .brand-divider {
                display: block;
            }
        }

        .nav-channels {
            display: flex;
            align-items: center;
            gap: 0;
            flex-wrap: wrap;
        }

        .nav-channels a {
            font-size: 13px;
            letter-spacing: 0.08em;
            color: var(--c-text-light);
            padding: 6px 14px;
            position: relative;
            transition: color 0.28s ease;
            white-space: nowrap;
        }

        .nav-channels a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            width: 0;
            height: 2px;
            background-color: var(--c-accent);
            transform: translateX(-50%);
            transition: width 0.28s ease;
        }

        .nav-channels a:hover,
        .nav-channels a.active {
            color: var(--c-primary);
        }

        .nav-channels a:hover::after,
        .nav-channels a.active::after {
            width: 60%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-icon-btn {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: var(--c-text-light);
            transition: background-color 0.28s ease, color 0.28s ease;
        }

        .search-icon-btn:hover {
            background-color: var(--c-accent-soft);
            color: var(--c-primary);
        }

        .subscribe-btn {
            border: 1px solid var(--c-primary);
            color: var(--c-primary);
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-size: 13px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, color 0.28s ease;
            white-space: nowrap;
        }

        .subscribe-btn:hover {
            background-color: var(--c-primary);
            color: var(--c-text-on-dark);
        }

        .hamburger-btn {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 36px;
            height: 36px;
            padding: 6px;
            border-radius: 4px;
            transition: background-color 0.28s ease;
        }

        .hamburger-btn span {
            display: block;
            height: 2px;
            background-color: var(--c-primary);
            border-radius: 1px;
            transition: transform 0.28s ease, opacity 0.28s ease;
        }

        .hamburger-btn:hover {
            background-color: var(--c-accent-soft);
        }

        @media (max-width: 767px) {
            .nav-channels {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding-top: 12px;
                gap: 4px;
            }
            .nav-channels.open {
                display: flex;
            }
            .nav-channels a {
                padding: 8px 0;
                font-size: 14px;
            }
            .nav-actions .search-icon-btn {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .brand-logo {
                font-size: 26px;
            }
            .masthead-inner {
                flex-wrap: wrap;
                gap: 8px;
            }
        }

        /* Hero Bento */
        .hero-section {
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            min-height: 500px;
            height: 80vh;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(246,242,234,0.95) 0%, rgba(246,242,234,0.82) 40%, rgba(246,242,234,0.45) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 40px 0;
        }

        .hero-bento-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 16px;
            align-items: stretch;
        }

        .hero-main-block {
            background-color: var(--c-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-md);
            padding: 40px 36px;
            border: 1px solid var(--c-border);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .hero-main-block h1 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: clamp(36px, 6vw, 64px);
            font-weight: 700;
            line-height: 1.2;
            color: var(--c-primary);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .hero-main-block .hero-sub {
            font-size: 18px;
            color: var(--c-text-light);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 560px;
        }

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

        .btn-primary {
            background-color: var(--c-primary);
            color: var(--c-text-on-dark);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 15px;
            letter-spacing: 0.03em;
            box-shadow: var(--shadow-sm);
            transition: background-color 0.28s ease, transform 0.2s ease, box-shadow 0.28s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background-color: var(--c-primary-light);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

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

        .btn-secondary {
            background: transparent;
            color: var(--c-primary);
            border: 1px solid var(--c-primary);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 15px;
            letter-spacing: 0.03em;
            transition: background-color 0.28s ease, color 0.28s ease, transform 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background-color: var(--c-accent-soft);
            color: var(--c-primary);
        }

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

        .hero-side-block {
            background-color: var(--c-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-md);
            padding: 24px 20px;
            border: 1px solid var(--c-border);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .hero-side-block .side-label {
            font-size: 12px;
            letter-spacing: 0.08em;
            color: var(--c-accent);
            text-transform: uppercase;
            margin-bottom: 8px;
            font-weight: 600;
        }

        .hero-side-block h3 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 20px;
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 6px;
        }

        .hero-side-block p {
            font-size: 14px;
            color: var(--c-text-light);
            line-height: 1.6;
        }

        .hero-cta-strip {
            margin-top: 16px;
            background-color: var(--c-primary);
            border-radius: var(--radius-card);
            padding: 16px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            box-shadow: var(--shadow-md);
        }

        .hero-cta-strip p {
            color: var(--c-text-on-dark);
            font-size: 15px;
            letter-spacing: 0.04em;
        }

        .hero-cta-strip a {
            color: var(--c-accent);
            font-size: 14px;
            letter-spacing: 0.04em;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-bottom: 1px solid var(--c-accent);
            padding-bottom: 2px;
            transition: color 0.28s ease, border-color 0.28s ease;
        }

        .hero-cta-strip a:hover {
            color: var(--c-text-on-dark);
            border-color: var(--c-text-on-dark);
        }

        .hero-scroll-indicator {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            color: var(--c-accent);
            font-size: 12px;
        }

        .hero-scroll-indicator .line {
            width: 1px;
            height: 32px;
            background-color: var(--c-accent);
            animation: scrollPulse 2s ease-in-out infinite;
        }

        @keyframes scrollPulse {
            0%, 100% { opacity: 0.4; transform: scaleY(1); }
            50% { opacity: 1; transform: scaleY(1.2); }
        }

        @media (max-width: 767px) {
            .hero-section {
                height: auto;
                min-height: 600px;
                padding: 60px 0;
            }
            .hero-bento-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .hero-main-block {
                padding: 28px 20px;
            }
            .hero-main-block h1 {
                font-size: 32px;
            }
            .hero-main-block .hero-sub {
                font-size: 16px;
            }
            .hero-cta-strip {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* 通用区块 */
        .section {
            padding: 80px 0;
        }

        .section-title {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .section-sub {
            font-size: 16px;
            color: var(--c-text-light);
            line-height: 1.7;
            margin-bottom: 40px;
            max-width: 640px;
        }

        .accent-line {
            width: 40px;
            height: 2px;
            background-color: var(--c-accent);
            margin-bottom: 16px;
        }

        /* 功能分组区 */
        .feature-grid-asym {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }

        .feature-card {
            background-color: var(--c-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-border);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            transition: transform 0.28s ease, box-shadow 0.28s ease;
            display: flex;
            flex-direction: column;
        }

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

        .feature-card .fc-num {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 14px;
            color: var(--c-accent);
            font-weight: 700;
            letter-spacing: 0.06em;
            margin-bottom: 12px;
        }

        .feature-card h3 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 20px;
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--c-text-light);
            line-height: 1.7;
            flex: 1;
        }

        .feature-card-lg {
            background-image: url('/assets/images/coverpic/cover-1.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            min-height: 280px;
            border: none;
        }

        .feature-card-lg .fc-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(31,45,42,0.85) 0%, rgba(31,45,42,0.5) 100%);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
        }

        .feature-card-lg .fc-num,
        .feature-card-lg h3,
        .feature-card-lg p {
            color: var(--c-text-on-dark);
        }

        .feature-row-compact {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .feature-compact-item {
            background-color: var(--c-surface);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            padding: 16px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: transform 0.28s ease, box-shadow 0.28s ease;
        }

        .feature-compact-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .feature-compact-item .fci-num {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 22px;
            font-weight: 700;
            color: var(--c-accent);
            flex-shrink: 0;
            width: 36px;
        }

        .feature-compact-item p {
            font-size: 14px;
            color: var(--c-text);
            font-weight: 500;
            line-height: 1.5;
        }

        @media (max-width: 1023px) {
            .feature-grid-asym {
                grid-template-columns: 1fr 1fr;
            }
            .feature-row-compact {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 767px) {
            .feature-grid-asym {
                grid-template-columns: 1fr;
            }
            .feature-row-compact {
                grid-template-columns: 1fr;
            }
            .feature-card-lg {
                min-height: 200px;
            }
        }

        /* 入口矩阵 */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 12px;
        }

        .matrix-item {
            background-color: var(--c-surface);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            padding: 20px 16px;
            text-align: center;
            transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }

        .matrix-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--c-accent);
        }

        .matrix-item .matrix-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background-color: var(--c-accent-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-accent);
            font-size: 18px;
        }

        .matrix-item h4 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 16px;
            color: var(--c-primary);
            font-weight: 600;
        }

        .matrix-item p {
            font-size: 13px;
            color: var(--c-text-light);
            line-height: 1.5;
        }

        @media (max-width: 1023px) {
            .matrix-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 767px) {
            .matrix-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 深度正文区 */
        .deep-article {
            display: grid;
            grid-template-columns: 35% 65%;
            gap: 32px;
            align-items: start;
        }

        .deep-article-left {
            position: sticky;
            top: 100px;
        }

        .deep-article-left .da-label {
            font-size: 13px;
            letter-spacing: 0.08em;
            color: var(--c-accent);
            font-weight: 600;
            margin-bottom: 8px;
        }

        .deep-article-left h2 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 28px;
            font-weight: 700;
            color: var(--c-primary);
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .deep-article-left p {
            font-size: 15px;
            color: var(--c-text-light);
            line-height: 1.7;
        }

        .deep-article-right .da-paragraph {
            font-size: 16px;
            line-height: 2.0;
            color: var(--c-text);
            margin-bottom: 20px;
        }

        .deep-article-right .da-image {
            margin: 24px 0;
            border-radius: var(--radius-img);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .deep-article-right .da-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 16/9;
        }

        @media (max-width: 767px) {
            .deep-article {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .deep-article-left {
                position: static;
            }
        }

        /* 使用场景区 */
        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .scenario-card {
            background-color: var(--c-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-border);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: transform 0.28s ease, box-shadow 0.28s ease;
        }

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

        .scenario-card .sc-img {
            height: 200px;
            overflow: hidden;
            border-radius: var(--radius-img) var(--radius-img) 0 0;
        }

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

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

        .scenario-card .sc-body {
            padding: 20px 24px;
        }

        .scenario-card .sc-body h3 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 19px;
            color: var(--c-primary);
            font-weight: 600;
            margin-bottom: 8px;
        }

        .scenario-card .sc-body p {
            font-size: 15px;
            color: var(--c-text-light);
            line-height: 1.7;
        }

        @media (max-width: 767px) {
            .scenario-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 新闻中心 */
        .news-list {
            display: flex;
            flex-direction: column;
        }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--c-border);
            transition: background-color 0.28s ease;
            cursor: pointer;
        }

        .news-item:hover {
            background-color: rgba(232,220,200,0.3);
        }

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

        .news-date {
            width: 90px;
            flex-shrink: 0;
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 14px;
            color: var(--c-accent);
            font-weight: 600;
            letter-spacing: 0.04em;
            padding-top: 2px;
        }

        .news-content {
            flex: 1;
        }

        .news-content h3 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 18px;
            color: var(--c-text);
            font-weight: 600;
            margin-bottom: 6px;
        }

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

        .news-content .read-more {
            font-size: 14px;
            color: var(--c-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color 0.28s ease;
        }

        .news-content .read-more .arrow {
            transition: transform 0.28s ease;
        }

        .news-content .read-more:hover {
            color: var(--c-accent);
        }

        .news-content .read-more:hover .arrow {
            transform: translateX(4px);
        }

        .news-side-recommend {
            display: flex;
            flex-direction: column;
            gap: 10px;
            background-color: var(--c-surface);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
        }

        .news-side-recommend h4 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 16px;
            color: var(--c-primary);
            font-weight: 600;
            margin-bottom: 8px;
        }

        .news-side-recommend a {
            font-size: 13px;
            color: var(--c-text-light);
            line-height: 1.5;
            padding: 6px 0;
            border-bottom: 1px solid var(--c-border);
            transition: color 0.28s ease;
        }

        .news-side-recommend a:last-child {
            border-bottom: none;
        }

        .news-side-recommend a:hover {
            color: var(--c-accent);
        }

        @media (max-width: 767px) {
            .news-item {
                flex-direction: column;
                gap: 8px;
            }
            .news-date {
                width: auto;
            }
        }

        /* 成功案例 */
        .case-grid-asym {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 16px;
        }

        .case-card {
            background-color: var(--c-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-border);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            transition: transform 0.28s ease, box-shadow 0.28s ease;
        }

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

        .case-card .case-num {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 40px;
            font-weight: 700;
            color: var(--c-accent);
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .case-card h3 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 19px;
            color: var(--c-primary);
            font-weight: 600;
            margin-bottom: 8px;
        }

        .case-card p {
            font-size: 14px;
            color: var(--c-text-light);
            line-height: 1.7;
        }

        .case-card-lg {
            grid-row: span 2;
        }

        .case-card-sm {
            padding: 20px 18px;
        }

        .case-card-sm .case-num {
            font-size: 30px;
        }

        @media (max-width: 767px) {
            .case-grid-asym {
                grid-template-columns: 1fr;
            }
            .case-card-lg {
                grid-row: auto;
            }
        }

        /* 价格区 */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .price-card {
            background-color: var(--c-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-border);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.28s ease, box-shadow 0.28s ease;
            display: flex;
            flex-direction: column;
        }

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

        .price-card.recommended {
            background-color: var(--c-bg-deep);
            border-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
        }

        .price-card .price-name {
            font-size: 14px;
            letter-spacing: 0.06em;
            color: var(--c-accent);
            font-weight: 600;
            margin-bottom: 12px;
        }

        .price-card.recommended .price-name {
            color: var(--c-accent);
        }

        .price-card .price-amount {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 48px;
            font-weight: 700;
            color: var(--c-primary);
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .price-card.recommended .price-amount {
            color: var(--c-text-on-dark);
        }

        .price-card .price-unit {
            font-size: 14px;
            color: var(--c-text-light);
            margin-bottom: 20px;
        }

        .price-card.recommended .price-unit {
            color: rgba(246,242,234,0.7);
        }

        .price-card .price-features {
            list-style: none;
            margin-bottom: 24px;
            flex: 1;
        }

        .price-card .price-features li {
            font-size: 14px;
            color: var(--c-text-light);
            padding: 4px 0;
            padding-left: 16px;
            position: relative;
            line-height: 1.6;
        }

        .price-card.recommended .price-features li {
            color: rgba(246,242,234,0.8);
        }

        .price-card .price-features li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 12px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--c-accent);
        }

        .price-card .btn-price {
            display: inline-block;
            text-align: center;
            background-color: var(--c-primary);
            color: var(--c-text-on-dark);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 14px;
            letter-spacing: 0.03em;
            transition: background-color 0.28s ease, transform 0.2s ease;
            white-space: nowrap;
        }

        .price-card .btn-price:hover {
            background-color: var(--c-primary-light);
            transform: translateY(-2px);
        }

        .price-card.recommended .btn-price {
            background-color: var(--c-accent);
        }

        .price-card.recommended .btn-price:hover {
            background-color: #C4A67A;
        }

        @media (max-width: 1023px) {
            .price-grid {
                grid-template-columns: 1fr 1fr;
            }
            .price-card:nth-child(3) {
                grid-column: span 2;
            }
        }

        @media (max-width: 767px) {
            .price-grid {
                grid-template-columns: 1fr;
            }
            .price-card:nth-child(3) {
                grid-column: auto;
            }
        }

        /* FAQ */
        .faq-list {
            border-top: 1px solid var(--c-border);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            cursor: pointer;
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 16px;
            font-weight: 600;
            color: var(--c-text);
            transition: color 0.28s ease;
        }

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

        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            position: relative;
            transition: transform 0.25s ease;
        }

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

        .faq-question .faq-icon::before {
            width: 16px;
            height: 2px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }

        .faq-question .faq-icon::after {
            width: 2px;
            height: 16px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            transition: transform 0.25s ease;
        }

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

        .faq-item.active .faq-question .faq-icon::after {
            transform: translate(-50%, -50%) scaleY(0);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease, padding 0.25s ease;
            font-size: 14px;
            color: var(--c-text-light);
            line-height: 1.8;
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 20px 16px;
        }

        /* 焦点主题 */
        .focus-theme-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .focus-theme-card {
            background-color: var(--c-surface);
            border-radius: var(--radius-card);
            border: 1px solid var(--c-border);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform 0.28s ease, box-shadow 0.28s ease;
        }

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

        .focus-theme-card .ft-img {
            height: 160px;
            overflow: hidden;
        }

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

        .focus-theme-card:hover .ft-img img {
            transform: scale(1.03);
        }

        .focus-theme-card .ft-body {
            padding: 16px 18px;
        }

        .focus-theme-card .ft-body h4 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 17px;
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 6px;
        }

        .focus-theme-card .ft-body p {
            font-size: 13px;
            color: var(--c-text-light);
            line-height: 1.6;
        }

        @media (max-width: 1023px) {
            .focus-theme-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 767px) {
            .focus-theme-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 底部CTA */
        .cta-section {
            background-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
            padding: 80px 0;
            text-align: center;
        }

        .cta-section h2 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: clamp(28px, 3.5vw, 40px);
            font-weight: 700;
            color: var(--c-text-on-dark);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(246,242,234,0.75);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

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

        .cta-section .btn-primary {
            background-color: var(--c-accent);
            color: var(--c-primary);
        }

        .cta-section .btn-primary:hover {
            background-color: #C4A67A;
        }

        .cta-section .btn-secondary {
            border-color: var(--c-text-on-dark);
            color: var(--c-text-on-dark);
        }

        .cta-section .btn-secondary:hover {
            background-color: rgba(246,242,234,0.1);
            color: var(--c-text-on-dark);
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
            padding: 48px 0 32px;
            border-top: 1px solid rgba(246,242,234,0.1);
        }

        .footer-top {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .footer-brand {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 28px;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--c-text-on-dark);
        }

        .footer-brand-divider {
            width: 1px;
            height: 20px;
            background-color: rgba(246,242,234,0.3);
            flex-shrink: 0;
        }

        .footer-brand-desc {
            font-size: 13px;
            color: rgba(246,242,234,0.7);
            letter-spacing: 0.04em;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            margin-bottom: 24px;
        }

        .footer-links a {
            font-size: 13px;
            color: rgba(246,242,234,0.7);
            transition: color 0.28s ease;
            letter-spacing: 0.04em;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(246,242,234,0.15);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(246,242,234,0.6);
            line-height: 1.7;
        }

        .footer-bottom .footer-tech-links {
            display: flex;
            gap: 16px;
        }

        .footer-bottom .footer-tech-links a {
            font-size: 13px;
            color: rgba(246,242,234,0.6);
            transition: color 0.28s ease;
        }

        .footer-bottom .footer-tech-links a:hover {
            color: var(--c-accent);
        }

        @media (max-width: 767px) {
            .footer-top {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .footer-brand-divider {
                display: none;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* 动效 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fadeInUp {
            animation: fadeInUp 0.6s ease-out forwards;
            opacity: 0;
        }

        .stagger-1 { animation-delay: 0.08s; }
        .stagger-2 { animation-delay: 0.16s; }
        .stagger-3 { animation-delay: 0.24s; }
        .stagger-4 { animation-delay: 0.32s; }
        .stagger-5 { animation-delay: 0.40s; }
        .stagger-6 { animation-delay: 0.48s; }

        /* 深色区块标签 */
        .deep-badge {
            display: inline-block;
            background-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
            font-size: 12px;
            letter-spacing: 0.08em;
            padding: 4px 10px;
            border-radius: 4px;
            margin-bottom: 12px;
        }

/* roulang page: category2 */
:root {
            --c-primary: #1F2D2A;
            --c-primary-light: #33433E;
            --c-accent: #B08D5B;
            --c-accent-soft: #E8DCC8;
            --c-bg: #F6F2EA;
            --c-bg-deep: #1F2D2A;
            --c-surface: #FFFCF5;
            --c-text: #1A1A18;
            --c-text-light: #5C625C;
            --c-text-on-dark: #F6F2EA;
            --c-border: rgba(31, 45, 42, 0.14);
            --c-emphasis: #8C4A32;
            --shadow-sm: 0 1px 3px rgba(31, 45, 42, 0.05);
            --shadow-md: 0 4px 24px rgba(31, 45, 42, 0.07), 0 1px 4px rgba(31, 45, 42, 0.06);
            --shadow-lg: 0 8px 40px rgba(31, 45, 42, 0.10);
            --radius-card: 6px;
            --radius-btn: 4px;
            --radius-img: 4px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
            background-color: var(--c-bg);
            color: var(--c-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.28s ease;
        }

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

        input,
        textarea {
            font-family: inherit;
        }

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

        /* 顶部公告栏 */
        .top-notice {
            background-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
            font-size: 12px;
            letter-spacing: 0.05em;
            padding: 6px 24px;
            text-align: center;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* 杂志刊头导航 */
        .masthead {
            background-color: var(--c-bg);
            border-bottom: 1px solid var(--c-border);
            padding: 20px 0;
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .masthead-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .brand-area {
            display: flex;
            align-items: center;
            gap: 0;
            flex-shrink: 0;
        }

        .brand-logo {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--c-primary);
            white-space: nowrap;
            line-height: 1.2;
        }

        .brand-logo a {
            color: inherit;
        }

        .brand-divider {
            width: 1px;
            height: 20px;
            background-color: var(--c-border);
            flex-shrink: 0;
            margin: 0 16px;
            display: block;
        }

        .nav-channels {
            display: flex;
            align-items: center;
            gap: 0;
            flex-wrap: wrap;
        }

        .nav-channels a {
            font-size: 13px;
            letter-spacing: 0.08em;
            color: var(--c-text-light);
            padding: 6px 14px;
            position: relative;
            transition: color 0.28s ease;
            white-space: nowrap;
        }

        .nav-channels a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            width: 0;
            height: 2px;
            background-color: var(--c-accent);
            transform: translateX(-50%);
            transition: width 0.28s ease;
        }

        .nav-channels a:hover,
        .nav-channels a.active {
            color: var(--c-primary);
        }

        .nav-channels a:hover::after,
        .nav-channels a.active::after {
            width: 60%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-icon-btn {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: var(--c-text-light);
            transition: background-color 0.28s ease, color 0.28s ease;
        }

        .search-icon-btn:hover {
            background-color: var(--c-accent-soft);
            color: var(--c-primary);
        }

        .subscribe-btn {
            border: 1px solid var(--c-primary);
            color: var(--c-primary);
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-size: 13px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, color 0.28s ease;
            white-space: nowrap;
        }

        .subscribe-btn:hover {
            background-color: var(--c-primary);
            color: var(--c-text-on-dark);
        }

        .hamburger-btn {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 36px;
            height: 36px;
            padding: 6px;
            border-radius: 4px;
            transition: background-color 0.28s ease;
        }

        .hamburger-btn span {
            display: block;
            height: 2px;
            background-color: var(--c-primary);
            border-radius: 1px;
            transition: transform 0.28s ease, opacity 0.28s ease;
        }

        .hamburger-btn:hover {
            background-color: var(--c-accent-soft);
        }

        /* 页面标题区 */
        .page-hero {
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            overflow: hidden;
            padding: 60px 0;
        }

        .page-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(246, 242, 234, 0.93) 0%, rgba(246, 242, 234, 0.82) 100%);
        }

        .page-hero-content {
            position: relative;
            z-index: 10;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .page-hero-eyebrow {
            font-size: 13px;
            letter-spacing: 0.12em;
            color: var(--c-accent);
            font-weight: 600;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .page-hero h1 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: clamp(32px, 4.5vw, 48px);
            font-weight: 700;
            color: var(--c-primary);
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .page-hero-desc {
            font-size: 17px;
            color: var(--c-text-light);
            max-width: 680px;
            line-height: 1.85;
        }

        /* 强调线 */
        .accent-line {
            width: 40px;
            height: 2px;
            background-color: var(--c-accent);
            margin-bottom: 16px;
        }

        /* 筛选器 */
        .filter-bar {
            background-color: var(--c-surface);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            padding: 12px 20px;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-sm);
        }

        .filter-btn {
            padding: 8px 20px;
            font-size: 14px;
            border-radius: 20px;
            border: 1px solid var(--c-border);
            color: var(--c-text-light);
            background: transparent;
            transition: all 0.28s ease;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .filter-btn:hover {
            border-color: var(--c-primary);
            color: var(--c-primary);
            background-color: var(--c-accent-soft);
        }

        .filter-btn.active {
            background-color: var(--c-primary);
            color: var(--c-text-on-dark);
            border-color: var(--c-primary);
        }

        .filter-btn:focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 2px;
        }

        /* 卡片网格 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .case-card {
            background-color: var(--c-surface);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: transform 0.28s ease, box-shadow 0.28s ease;
            display: flex;
            flex-direction: column;
        }

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

        .case-card-image {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-img);
            margin: 0;
            aspect-ratio: 16 / 9;
            flex-shrink: 0;
        }

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

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

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

        .case-card-tag {
            display: inline-block;
            background-color: var(--c-accent-soft);
            color: var(--c-primary);
            font-size: 12px;
            letter-spacing: 0.04em;
            padding: 3px 10px;
            border-radius: 2px;
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .case-card-title {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 20px;
            font-weight: 600;
            color: var(--c-primary);
            line-height: 1.45;
            margin-bottom: 10px;
        }

        .case-card-excerpt {
            font-size: 14px;
            color: var(--c-text-light);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .case-card-link {
            font-size: 14px;
            color: var(--c-primary);
            font-weight: 500;
            letter-spacing: 0.02em;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color 0.28s ease;
            align-self: flex-start;
        }

        .case-card-link .arrow {
            display: inline-block;
            transition: transform 0.28s ease;
            font-size: 16px;
        }

        .case-card-link:hover {
            color: var(--c-accent);
        }

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

        /* 深度说明区 */
        .deep-note {
            background-color: var(--c-bg-deep);
            border-radius: var(--radius-card);
            padding: 40px 48px;
            color: var(--c-text-on-dark);
            position: relative;
            overflow: hidden;
        }

        .deep-note::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background-color: var(--c-accent);
        }

        .deep-note h2 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 24px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--c-text-on-dark);
            letter-spacing: 0.02em;
        }

        .deep-note p {
            font-size: 15px;
            line-height: 1.85;
            color: rgba(246, 242, 234, 0.82);
            margin-bottom: 12px;
        }

        .deep-note p:last-child {
            margin-bottom: 0;
        }

        /* 分页 */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
            padding: 8px 0;
        }

        .pagination a {
            padding: 10px 20px;
            border: 1px solid var(--c-border);
            border-radius: var(--radius-btn);
            font-size: 14px;
            color: var(--c-text-light);
            transition: all 0.28s ease;
            letter-spacing: 0.02em;
        }

        .pagination a:hover {
            border-color: var(--c-primary);
            color: var(--c-primary);
            background-color: var(--c-accent-soft);
        }

        .pagination .page-num {
            padding: 10px 16px;
            font-size: 14px;
            color: var(--c-text-light);
        }

        .pagination .current {
            background-color: var(--c-primary);
            color: var(--c-text-on-dark);
            border-color: var(--c-primary);
            pointer-events: none;
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
            padding: 48px 0 32px;
            margin-top: 0;
        }

        .footer-top {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .footer-brand {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 28px;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--c-text-on-dark);
            white-space: nowrap;
        }

        .footer-brand-divider {
            width: 1px;
            height: 20px;
            background-color: rgba(246, 242, 234, 0.25);
            flex-shrink: 0;
        }

        .footer-brand-desc {
            font-size: 13px;
            color: rgba(246, 242, 234, 0.68);
            letter-spacing: 0.04em;
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 0;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .footer-links a {
            font-size: 13px;
            color: rgba(246, 242, 234, 0.72);
            padding: 4px 12px 4px 0;
            margin-right: 12px;
            transition: color 0.28s ease;
            letter-spacing: 0.04em;
        }

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

        .footer-bottom {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            padding-top: 20px;
            border-top: 1px solid rgba(246, 242, 234, 0.12);
        }

        .footer-bottom p {
            font-size: 13px;
            line-height: 1.9;
            color: rgba(246, 242, 234, 0.62);
            margin: 0;
        }

        .footer-tech-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-tech-links a {
            font-size: 13px;
            color: rgba(246, 242, 234, 0.62);
            transition: color 0.28s ease;
        }

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

        /* 移动端响应式 */
        @media (max-width: 1023px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .case-grid {
                gap: 20px;
            }

            .case-card-body {
                padding: 16px 20px 20px;
            }

            .deep-note {
                padding: 32px 36px;
            }
        }

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

            .top-notice {
                font-size: 11px;
                padding: 4px 16px;
                height: 28px;
            }

            .masthead {
                padding: 14px 0;
            }

            .brand-logo {
                font-size: 26px;
            }

            .brand-divider {
                display: none;
            }

            .nav-channels {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding-top: 12px;
                gap: 4px;
            }

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

            .nav-channels a {
                padding: 8px 0;
                font-size: 14px;
            }

            .nav-actions .search-icon-btn {
                display: none;
            }

            .hamburger-btn {
                display: flex;
            }

            .subscribe-btn {
                padding: 7px 14px;
                font-size: 12px;
            }

            .page-hero {
                min-height: 240px;
                padding: 40px 0;
            }

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

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

            .filter-bar {
                padding: 10px 12px;
                gap: 6px;
            }

            .filter-btn {
                padding: 6px 14px;
                font-size: 12px;
            }

            .case-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .case-card-title {
                font-size: 18px;
            }

            .deep-note {
                padding: 24px 20px;
            }

            .deep-note h2 {
                font-size: 20px;
            }

            .deep-note p {
                font-size: 14px;
            }

            .pagination a {
                padding: 8px 14px;
                font-size: 12px;
            }

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

            .footer-brand {
                font-size: 22px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 24px;
            }

            .page-hero-desc {
                font-size: 14px;
            }

            .filter-btn {
                padding: 5px 10px;
                font-size: 11px;
                flex: 1;
                text-align: center;
            }

            .case-card-image {
                aspect-ratio: 4 / 3;
            }

            .case-card-body {
                padding: 14px 16px 18px;
            }

            .case-card-title {
                font-size: 16px;
            }

            .case-card-excerpt {
                font-size: 13px;
            }
        }

        /* 所有焦点可见 */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 2px;
        }

/* roulang page: category1 */
:root {
            --c-primary: #1F2D2A;
            --c-primary-light: #33433E;
            --c-accent: #B08D5B;
            --c-accent-soft: #E8DCC8;
            --c-bg: #F6F2EA;
            --c-bg-deep: #1F2D2A;
            --c-surface: #FFFCF5;
            --c-text: #1A1A18;
            --c-text-light: #5C625C;
            --c-text-on-dark: #F6F2EA;
            --c-border: rgba(31, 45, 42, 0.14);
            --c-emphasis: #8C4A32;
            --shadow-sm: 0 1px 3px rgba(31, 45, 42, 0.05);
            --shadow-md: 0 4px 24px rgba(31, 45, 42, 0.07), 0 1px 4px rgba(31, 45, 42, 0.06);
            --shadow-lg: 0 8px 40px rgba(31, 45, 42, 0.10);
            --radius-card: 6px;
            --radius-btn: 4px;
            --radius-img: 4px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
            background-color: var(--c-bg);
            color: var(--c-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.28s ease;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
        }
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 1023px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }
        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        .brand-logo {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--c-primary);
            white-space: nowrap;
            line-height: 1.2;
        }
        .brand-logo a {
            color: inherit;
        }
        .brand-divider {
            width: 1px;
            height: 20px;
            background-color: var(--c-border);
            flex-shrink: 0;
            margin: 0 16px;
            display: none;
        }
        @media (min-width: 768px) {
            .brand-divider {
                display: block;
            }
        }
        .nav-channels {
            display: flex;
            align-items: center;
            gap: 0;
            flex-wrap: wrap;
        }
        .nav-channels a {
            font-size: 13px;
            letter-spacing: 0.08em;
            color: var(--c-text-light);
            padding: 6px 14px;
            position: relative;
            transition: color 0.28s ease;
            white-space: nowrap;
        }
        .nav-channels a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            width: 0;
            height: 2px;
            background-color: var(--c-accent);
            transform: translateX(-50%);
            transition: width 0.28s ease;
        }
        .nav-channels a:hover,
        .nav-channels a.active {
            color: var(--c-primary);
        }
        .nav-channels a:hover::after,
        .nav-channels a.active::after {
            width: 60%;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-icon-btn {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: var(--c-text-light);
            transition: background-color 0.28s ease, color 0.28s ease;
        }
        .search-icon-btn:hover {
            background-color: var(--c-accent-soft);
            color: var(--c-primary);
        }
        .subscribe-btn {
            border: 1px solid var(--c-primary);
            color: var(--c-primary);
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-size: 13px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, color 0.28s ease;
            white-space: nowrap;
        }
        .subscribe-btn:hover {
            background-color: var(--c-primary);
            color: var(--c-text-on-dark);
        }
        .hamburger-btn {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 36px;
            height: 36px;
            padding: 6px;
            border-radius: 4px;
            transition: background-color 0.28s ease;
        }
        .hamburger-btn span {
            display: block;
            height: 2px;
            background-color: var(--c-primary);
            border-radius: 1px;
            transition: transform 0.28s ease, opacity 0.28s ease;
        }
        .hamburger-btn:hover {
            background-color: var(--c-accent-soft);
        }
        @media (max-width: 767px) {
            .nav-channels {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding-top: 12px;
                gap: 4px;
            }
            .nav-channels.open {
                display: flex;
            }
            .nav-channels a {
                padding: 8px 0;
                font-size: 14px;
            }
            .nav-actions .search-icon-btn {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .brand-logo {
                font-size: 26px;
            }
        }
        .top-notice {
            background-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
            font-size: 12px;
            letter-spacing: 0.06em;
            padding: 8px 0;
            text-align: center;
        }
        .site-header {
            background-color: var(--c-bg);
            border-bottom: 1px solid var(--c-border);
            position: sticky;
            top: 0;
            z-index: 50;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 16px;
            padding-bottom: 16px;
            gap: 16px;
            flex-wrap: wrap;
        }
        .header-left {
            display: flex;
            align-items: center;
            gap: 0;
            flex-shrink: 0;
        }
        @media (max-width: 767px) {
            .header-left {
                flex: 1;
                justify-content: space-between;
            }
            .header-inner {
                gap: 8px;
            }
        }
        .page-title-section {
            padding: 56px 0 40px;
            background-color: var(--c-bg);
            border-bottom: 1px solid var(--c-border);
        }
        .page-title-section h1 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 700;
            color: var(--c-primary);
            letter-spacing: 0.02em;
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .page-title-section p {
            font-size: 16px;
            color: var(--c-text-light);
            max-width: 720px;
            line-height: 1.8;
        }
        .breadcrumb {
            font-size: 13px;
            color: var(--c-text-light);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }
        .breadcrumb a {
            color: var(--c-accent);
            transition: color 0.28s ease;
        }
        .breadcrumb a:hover {
            color: var(--c-primary);
        }
        .breadcrumb span {
            margin: 0 6px;
            color: var(--c-border);
        }
        .main-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            padding: 56px 0 80px;
        }
        @media (max-width: 1023px) {
            .main-layout {
                grid-template-columns: 1fr;
                gap: 40px;
                padding: 40px 0 56px;
            }
        }
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .article-item {
            display: flex;
            gap: 20px;
            padding: 28px 0;
            border-bottom: 1px solid var(--c-border);
            transition: background-color 0.28s ease;
        }
        .article-item:hover {
            background-color: rgba(232, 220, 200, 0.25);
        }
        .article-item:first-child {
            padding-top: 0;
        }
        .article-thumb {
            width: 96px;
            height: 96px;
            border-radius: var(--radius-img);
            overflow: hidden;
            flex-shrink: 0;
            background-color: var(--c-accent-soft);
        }
        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .article-thumb:hover img {
            transform: scale(1.05);
        }
        .article-content {
            flex: 1;
            min-width: 0;
        }
        .article-date {
            font-size: 13px;
            color: var(--c-accent);
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            letter-spacing: 0.04em;
            margin-bottom: 6px;
        }
        .article-content h3 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 20px;
            font-weight: 600;
            color: var(--c-text);
            margin-bottom: 8px;
            line-height: 1.45;
            transition: color 0.28s ease;
        }
        .article-content h3:hover {
            color: var(--c-primary);
        }
        .article-content p {
            font-size: 14px;
            color: var(--c-text-light);
            line-height: 1.7;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .read-more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--c-primary);
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: color 0.28s ease, gap 0.28s ease;
        }
        .read-more-link .arrow {
            transition: transform 0.28s ease;
        }
        .read-more-link:hover {
            color: var(--c-accent);
            gap: 10px;
        }
        .read-more-link:hover .arrow {
            transform: translateX(2px);
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background-color: var(--c-surface);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h2 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 18px;
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--c-accent);
            display: inline-block;
        }
        .latest-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .latest-list li {
            display: flex;
            align-items: baseline;
            gap: 10px;
            font-size: 14px;
            line-height: 1.5;
            transition: color 0.28s ease;
        }
        .latest-list li:hover {
            color: var(--c-accent);
        }
        .latest-list .latest-date {
            font-size: 12px;
            color: var(--c-accent);
            flex-shrink: 0;
            font-family: 'Noto Serif SC', 'Songti SC', serif;
        }
        .latest-list a {
            color: var(--c-text);
            transition: color 0.28s ease;
        }
        .latest-list a:hover {
            color: var(--c-primary);
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud span {
            display: inline-block;
            background-color: var(--c-accent-soft);
            color: var(--c-primary);
            font-size: 12px;
            letter-spacing: 0.04em;
            padding: 4px 12px;
            border-radius: 2px;
            transition: background-color 0.28s ease, color 0.28s ease;
            cursor: default;
        }
        .tag-cloud span:hover {
            background-color: var(--c-primary);
            color: var(--c-text-on-dark);
        }
        .sidebar-image {
            border-radius: var(--radius-img);
            overflow: hidden;
            aspect-ratio: 16/9;
            background-color: var(--c-accent-soft);
        }
        .sidebar-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .sidebar-image:hover img {
            transform: scale(1.04);
        }
        .pagination {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 40px 0 0;
            gap: 16px;
        }
        .pagination a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--c-primary);
            padding: 10px 20px;
            border: 1px solid var(--c-border);
            border-radius: var(--radius-btn);
            transition: background-color 0.28s ease, border-color 0.28s ease, color 0.28s ease;
            letter-spacing: 0.04em;
        }
        .pagination a:hover {
            background-color: var(--c-accent-soft);
            border-color: var(--c-accent);
            color: var(--c-accent);
        }
        .pagination a.disabled {
            opacity: 0.4;
            pointer-events: none;
            cursor: not-allowed;
        }
        .cta-section {
            background-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
            padding: 64px 0;
            text-align: center;
        }
        .cta-section h2 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: clamp(24px, 3.5vw, 36px);
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
            color: var(--c-text-on-dark);
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(246, 242, 234, 0.75);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary {
            background-color: var(--c-accent);
            color: var(--c-text-on-dark);
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-size: 15px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, transform 0.2s ease;
            display: inline-block;
            font-weight: 500;
        }
        .btn-primary:hover {
            background-color: var(--c-primary-light);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            background-color: transparent;
            color: var(--c-text-on-dark);
            border: 1px solid rgba(246, 242, 234, 0.5);
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-size: 15px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, border-color 0.28s ease;
            display: inline-block;
            font-weight: 500;
        }
        .btn-secondary:hover {
            background-color: rgba(246, 242, 234, 0.1);
            border-color: var(--c-text-on-dark);
        }
        .site-footer {
            background-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
            padding: 48px 0 32px;
            border-top: 1px solid var(--c-border);
        }
        .footer-top {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .footer-brand {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 28px;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--c-text-on-dark);
        }
        .footer-brand-divider {
            width: 1px;
            height: 24px;
            background-color: rgba(246, 242, 234, 0.3);
            flex-shrink: 0;
        }
        .footer-brand-desc {
            font-size: 13px;
            color: rgba(246, 242, 234, 0.65);
            letter-spacing: 0.04em;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 28px;
        }
        .footer-links a {
            font-size: 13px;
            color: rgba(246, 242, 234, 0.75);
            transition: color 0.28s ease;
            letter-spacing: 0.04em;
        }
        .footer-links a:hover {
            color: var(--c-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(246, 242, 234, 0.15);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom p {
            font-size: 12px;
            color: rgba(246, 242, 234, 0.6);
            line-height: 1.8;
            margin: 0;
        }
        .footer-tech-links {
            display: flex;
            gap: 16px;
            font-size: 12px;
            flex-wrap: wrap;
        }
        .footer-tech-links a {
            color: rgba(246, 242, 234, 0.6);
            transition: color 0.28s ease;
        }
        .footer-tech-links a:hover {
            color: var(--c-accent);
        }
        @media (max-width: 767px) {
            .main-layout {
                gap: 32px;
                padding: 32px 0 48px;
            }
            .article-item {
                flex-direction: column;
                gap: 12px;
                padding: 20px 0;
            }
            .article-thumb {
                width: 100%;
                height: 180px;
            }
            .sidebar {
                gap: 24px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
            }
        }
        @media (min-width: 768px) and (max-width: 1023px) {
            .main-layout {
                grid-template-columns: 1fr;
            }
            .sidebar {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 24px;
            }
            .sidebar-card {
                flex: 1;
                min-width: 260px;
            }
        }
        .focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 2px;
        }
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 2px;
        }

/* roulang page: category3 */
:root {
            --c-primary: #1F2D2A;
            --c-primary-light: #33433E;
            --c-accent: #B08D5B;
            --c-accent-soft: #E8DCC8;
            --c-bg: #F6F2EA;
            --c-bg-deep: #1F2D2A;
            --c-surface: #FFFCF5;
            --c-text: #1A1A18;
            --c-text-light: #5C625C;
            --c-text-on-dark: #F6F2EA;
            --c-border: rgba(31, 45, 42, 0.14);
            --c-emphasis: #8C4A32;
            --shadow-sm: 0 1px 3px rgba(31, 45, 42, 0.05);
            --shadow-md: 0 4px 24px rgba(31, 45, 42, 0.07), 0 1px 4px rgba(31, 45, 42, 0.06);
            --shadow-lg: 0 8px 40px rgba(31, 45, 42, 0.10);
            --radius-card: 6px;
            --radius-btn: 4px;
            --radius-img: 4px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
            background-color: var(--c-bg);
            color: var(--c-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.28s ease;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
        }
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 1023px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }
        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        .brand-logo {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--c-primary);
            white-space: nowrap;
            line-height: 1.2;
        }
        .brand-logo a {
            color: inherit;
        }
        .brand-divider {
            width: 1px;
            height: 20px;
            background-color: var(--c-border);
            flex-shrink: 0;
            margin: 0 16px;
            display: none;
        }
        @media (min-width: 768px) {
            .brand-divider {
                display: block;
            }
        }
        .nav-channels {
            display: flex;
            align-items: center;
            gap: 0;
            flex-wrap: wrap;
        }
        .nav-channels a {
            font-size: 13px;
            letter-spacing: 0.08em;
            color: var(--c-text-light);
            padding: 6px 14px;
            position: relative;
            transition: color 0.28s ease;
            white-space: nowrap;
        }
        .nav-channels a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            width: 0;
            height: 2px;
            background-color: var(--c-accent);
            transform: translateX(-50%);
            transition: width 0.28s ease;
        }
        .nav-channels a:hover,
        .nav-channels a.active {
            color: var(--c-primary);
        }
        .nav-channels a:hover::after,
        .nav-channels a.active::after {
            width: 60%;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-icon-btn {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: var(--c-text-light);
            transition: background-color 0.28s ease, color 0.28s ease;
        }
        .search-icon-btn:hover {
            background-color: var(--c-accent-soft);
            color: var(--c-primary);
        }
        .subscribe-btn {
            border: 1px solid var(--c-primary);
            color: var(--c-primary);
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-size: 13px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, color 0.28s ease;
            white-space: nowrap;
        }
        .subscribe-btn:hover {
            background-color: var(--c-primary);
            color: var(--c-text-on-dark);
        }
        .hamburger-btn {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 36px;
            height: 36px;
            padding: 6px;
            border-radius: 4px;
            transition: background-color 0.28s ease;
        }
        .hamburger-btn span {
            display: block;
            height: 2px;
            background-color: var(--c-primary);
            border-radius: 1px;
            transition: transform 0.28s ease, opacity 0.28s ease;
        }
        .hamburger-btn:hover {
            background-color: var(--c-accent-soft);
        }
        @media (max-width: 767px) {
            .nav-channels {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding-top: 12px;
                gap: 4px;
            }
            .nav-channels.open {
                display: flex;
            }
            .nav-channels a {
                padding: 8px 0;
                font-size: 14px;
            }
            .nav-actions .search-icon-btn {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .brand-logo {
                font-size: 26px;
            }
        }
        .section-heading {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 600;
            color: var(--c-primary);
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-heading::after {
            content: '';
            display: block;
            width: 40px;
            height: 2px;
            background-color: var(--c-accent);
            margin-top: 8px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--c-primary);
            color: var(--c-text-on-dark);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 14px;
            letter-spacing: 0.04em;
            box-shadow: var(--shadow-sm);
            transition: background-color 0.28s ease, box-shadow 0.28s ease, transform 0.2s ease;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background-color: var(--c-primary-light);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: 1px solid var(--c-primary);
            color: var(--c-primary);
            border-radius: var(--radius-btn);
            padding: 9px 23px;
            font-size: 14px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, color 0.28s ease, transform 0.2s ease;
            white-space: nowrap;
        }
        .btn-secondary:hover {
            background-color: var(--c-accent-soft);
            color: var(--c-primary);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .btn-text {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--c-primary);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.28s ease;
        }
        .btn-text .arrow {
            transition: transform 0.28s ease;
        }
        .btn-text:hover {
            color: var(--c-accent);
        }
        .btn-text:hover .arrow {
            transform: translateX(4px);
        }
        .card-hover {
            transition: transform 0.28s ease, box-shadow 0.28s ease;
        }
        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .img-zoom-wrap {
            overflow: hidden;
            border-radius: var(--radius-img);
        }
        .img-zoom-wrap img {
            transition: transform 0.4s ease;
        }
        .img-zoom-wrap:hover img {
            transform: scale(1.03);
        }
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 2px;
        }
        .site-header {
            background-color: var(--c-bg);
            border-bottom: 1px solid var(--c-border);
            padding: 20px 0;
            position: sticky;
            top: 0;
            z-index: 50;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .header-left {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .site-footer {
            background-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
            padding: 48px 0 32px;
        }
        .footer-top {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .footer-brand {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 28px;
            font-weight: 700;
            color: var(--c-text-on-dark);
        }
        .footer-brand-divider {
            width: 1px;
            height: 18px;
            background-color: rgba(246, 242, 234, 0.3);
        }
        .footer-brand-desc {
            font-size: 13px;
            color: rgba(246, 242, 234, 0.7);
            letter-spacing: 0.04em;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 24px;
        }
        .footer-links a {
            font-size: 13px;
            color: rgba(246, 242, 234, 0.75);
            transition: color 0.28s ease;
        }
        .footer-links a:hover {
            color: var(--c-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(246, 242, 234, 0.15);
            padding-top: 16px;
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-bottom p {
            font-size: 12px;
            line-height: 1.7;
            color: rgba(246, 242, 234, 0.55);
            margin: 0;
        }
        .footer-tech-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-tech-links a {
            font-size: 12px;
            color: rgba(246, 242, 234, 0.55);
            transition: color 0.28s ease;
        }
        .footer-tech-links a:hover {
            color: var(--c-accent);
        }
        .page-banner {
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 64px 0 56px;
            position: relative;
            overflow: hidden;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(31, 45, 42, 0.82) 0%, rgba(31, 45, 42, 0.55) 100%);
            z-index: 0;
        }
        .page-banner .container {
            position: relative;
            z-index: 1;
        }
        .page-banner h1 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 700;
            color: var(--c-text-on-dark);
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .page-banner .banner-sub {
            font-size: 16px;
            color: rgba(246, 242, 234, 0.85);
            max-width: 680px;
            line-height: 1.8;
        }
        .feature-spotlight {
            background-color: var(--c-surface);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            margin-top: -40px;
            position: relative;
            z-index: 2;
        }
        .feature-spotlight .spotlight-image {
            height: 380px;
            position: relative;
            overflow: hidden;
        }
        .feature-spotlight .spotlight-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .feature-spotlight .spotlight-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(31, 45, 42, 0.85) 0%, rgba(31, 45, 42, 0.15) 60%, transparent 100%);
            display: flex;
            align-items: flex-end;
            padding: 32px;
        }
        .feature-spotlight .spotlight-overlay h2 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: clamp(22px, 3vw, 32px);
            font-weight: 700;
            color: var(--c-text-on-dark);
            line-height: 1.3;
            margin-bottom: 8px;
        }
        .feature-spotlight .spotlight-overlay p {
            font-size: 15px;
            color: rgba(246, 242, 234, 0.85);
            line-height: 1.7;
            max-width: 560px;
        }
        .resource-list-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--c-border);
            align-items: flex-start;
        }
        .resource-list-item:last-child {
            border-bottom: none;
        }
        .resource-thumb {
            width: 100px;
            height: 100px;
            flex-shrink: 0;
            border-radius: var(--radius-img);
            overflow: hidden;
        }
        .resource-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .resource-content h3 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 18px;
            font-weight: 600;
            color: var(--c-primary);
            line-height: 1.4;
            margin-bottom: 4px;
        }
        .resource-content p {
            font-size: 14px;
            color: var(--c-text-light);
            line-height: 1.7;
            margin-bottom: 6px;
        }
        .pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            padding: 32px 0;
        }
        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border: 1px solid var(--c-border);
            border-radius: var(--radius-btn);
            font-size: 14px;
            color: var(--c-text-light);
            transition: background-color 0.28s ease, color 0.28s ease, border-color 0.28s ease;
        }
        .pagination a:hover {
            background-color: var(--c-accent-soft);
            color: var(--c-primary);
            border-color: var(--c-accent);
        }
        .pagination .current {
            background-color: var(--c-primary);
            color: var(--c-text-on-dark);
            border-color: var(--c-primary);
        }
        .benefit-card {
            background-color: var(--c-surface);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: transform 0.28s ease, box-shadow 0.28s ease;
        }
        .benefit-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .benefit-num {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 28px;
            font-weight: 700;
            color: var(--c-accent);
            margin-bottom: 8px;
        }
        .benefit-card h3 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 18px;
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 6px;
        }
        .benefit-card p {
            font-size: 14px;
            color: var(--c-text-light);
            line-height: 1.7;
        }
        .faq-item {
            border-bottom: 1px solid var(--c-border);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
            padding: 16px 12px;
            text-align: left;
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 16px;
            font-weight: 600;
            color: var(--c-text);
            transition: color 0.28s ease;
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--c-primary);
        }
        .faq-icon {
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-accent);
            font-size: 20px;
            flex-shrink: 0;
            transition: transform 0.28s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 12px;
            font-size: 14px;
            color: var(--c-text-light);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 16px;
        }
        .cta-section {
            background-color: var(--c-bg-deep);
            padding: 64px 0;
            text-align: center;
        }
        .cta-section h2 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: clamp(26px, 4vw, 40px);
            font-weight: 700;
            color: var(--c-text-on-dark);
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(246, 242, 234, 0.75);
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }
        .cta-section .btn-primary {
            background-color: var(--c-accent);
        }
        .cta-section .btn-primary:hover {
            background-color: #C4A070;
        }
        .stat-number {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 40px;
            font-weight: 700;
            color: var(--c-accent);
            line-height: 1.2;
        }
        .fade-in-up {
            opacity: 0;
            transform: translateY(16px);
            animation: fadeInUp 0.5s ease-out forwards;
        }
        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        @media (max-width: 767px) {
            .feature-spotlight .spotlight-image {
                height: 280px;
            }
            .feature-spotlight .spotlight-overlay {
                padding: 20px;
            }
            .resource-list-item {
                flex-direction: column;
                gap: 12px;
            }
            .resource-thumb {
                width: 80px;
                height: 80px;
            }
            .page-banner {
                padding: 40px 0 36px;
            }
            .cta-section {
                padding: 40px 0;
            }
            .stat-number {
                font-size: 28px;
            }
        }

/* roulang page: category4 */
:root {
            --c-primary: #1F2D2A;
            --c-primary-light: #33433E;
            --c-accent: #B08D5B;
            --c-accent-soft: #E8DCC8;
            --c-bg: #F6F2EA;
            --c-bg-deep: #1F2D2A;
            --c-surface: #FFFCF5;
            --c-text: #1A1A18;
            --c-text-light: #5C625C;
            --c-text-on-dark: #F6F2EA;
            --c-border: rgba(31, 45, 42, 0.14);
            --c-emphasis: #8C4A32;
            --shadow-sm: 0 1px 3px rgba(31, 45, 42, 0.05);
            --shadow-md: 0 4px 24px rgba(31, 45, 42, 0.07), 0 1px 4px rgba(31, 45, 42, 0.06);
            --shadow-lg: 0 8px 40px rgba(31, 45, 42, 0.10);
            --radius-card: 6px;
            --radius-btn: 4px;
            --radius-img: 4px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
            background-color: var(--c-bg);
            color: var(--c-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
        }

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

        img {
            max-width: 100%;
            display: block;
            border-radius: var(--radius-img);
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.28s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
            transition: all 0.28s ease;
        }

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            line-height: 1.3;
            color: var(--c-primary);
        }

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

        /* 导航 */
        .site-header {
            background-color: var(--c-bg);
            border-bottom: 1px solid var(--c-border);
            position: sticky;
            top: 0;
            z-index: 50;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 20px;
            padding-bottom: 20px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: 0;
            flex-shrink: 0;
        }

        .brand-logo {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 30px;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--c-primary);
            white-space: nowrap;
            line-height: 1.2;
        }

        .brand-logo a {
            color: inherit;
            transition: color 0.28s ease;
        }

        .brand-logo a:hover {
            color: var(--c-accent);
        }

        .brand-divider {
            width: 1px;
            height: 22px;
            background-color: var(--c-border);
            flex-shrink: 0;
            margin: 0 18px;
        }

        .nav-channels {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0;
        }

        .nav-channels a {
            font-size: 13px;
            letter-spacing: 0.08em;
            color: var(--c-text-light);
            padding: 6px 14px;
            position: relative;
            transition: color 0.28s ease;
            white-space: nowrap;
            font-weight: 400;
        }

        .nav-channels a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            width: 0;
            height: 2px;
            background-color: var(--c-accent);
            transform: translateX(-50%);
            transition: width 0.28s ease;
        }

        .nav-channels a:hover,
        .nav-channels a.active {
            color: var(--c-primary);
        }

        .nav-channels a:hover::after,
        .nav-channels a.active::after {
            width: 60%;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

        .search-icon-btn {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: var(--c-text-light);
            transition: background-color 0.28s ease, color 0.28s ease;
            background: none;
        }

        .search-icon-btn:hover {
            background-color: var(--c-accent-soft);
            color: var(--c-primary);
        }

        .subscribe-btn {
            border: 1px solid var(--c-primary);
            color: var(--c-primary);
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-size: 13px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, color 0.28s ease, transform 0.2s ease;
            white-space: nowrap;
            background: transparent;
        }

        .subscribe-btn:hover {
            background-color: var(--c-primary);
            color: var(--c-text-on-dark);
        }

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

        .hamburger-btn {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            padding: 8px;
            border-radius: 4px;
            transition: background-color 0.28s ease;
            background: none;
        }

        .hamburger-btn span {
            display: block;
            height: 2px;
            background-color: var(--c-primary);
            border-radius: 1px;
            transition: transform 0.28s ease, opacity 0.28s ease;
        }

        .hamburger-btn:hover {
            background-color: var(--c-accent-soft);
        }

        /* 页面标题区 */
        .page-banner {
            background-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
            padding: 56px 0 48px;
            position: relative;
            overflow: hidden;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(176, 141, 91, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-banner h1 {
            color: var(--c-text-on-dark);
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 700;
            letter-spacing: 0.02em;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .page-banner p {
            font-size: 16px;
            color: rgba(246, 242, 234, 0.78);
            max-width: 680px;
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }

        /* 资源卡样式 */
        .resource-section {
            padding: 64px 0 48px;
        }

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

        .resource-card {
            background-color: var(--c-surface);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-md);
            display: flex;
            gap: 20px;
            align-items: flex-start;
            transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
            overflow: hidden;
            position: relative;
        }

        .resource-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(176, 141, 91, 0.35);
        }

        .resource-card.is-full {
            grid-column: 1 / -1;
        }

        .resource-card-thumb {
            flex-shrink: 0;
            width: 100px;
            height: 100px;
            border-radius: var(--radius-img);
            overflow: hidden;
            position: relative;
        }

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

        .resource-card:hover .resource-card-thumb img {
            transform: scale(1.06);
        }

        .resource-card-body {
            flex: 1;
            min-width: 0;
        }

        .resource-card-tag {
            display: inline-block;
            background-color: var(--c-accent-soft);
            color: var(--c-primary);
            font-size: 12px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: 3px;
            letter-spacing: 0.04em;
            margin-bottom: 10px;
        }

        .resource-card-title {
            font-size: 19px;
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 8px;
            font-family: 'Noto Serif SC', 'Songti SC', serif;
        }

        .resource-card-desc {
            font-size: 14px;
            color: var(--c-text-light);
            line-height: 1.75;
            margin-bottom: 14px;
        }

        .resource-card-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .btn-primary {
            background-color: var(--c-primary);
            color: var(--c-text-on-dark);
            border-radius: var(--radius-btn);
            padding: 9px 22px;
            font-size: 14px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, transform 0.2s ease, box-shadow 0.28s ease;
            box-shadow: var(--shadow-sm);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-primary:hover {
            background-color: var(--c-primary-light);
            box-shadow: var(--shadow-md);
        }

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

        .btn-primary .arrow {
            transition: transform 0.28s ease;
        }

        .btn-primary:hover .arrow {
            transform: translateX(4px);
        }

        .btn-ghost {
            background: transparent;
            color: var(--c-primary);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-size: 13px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, border-color 0.28s ease, color 0.28s ease;
        }

        .btn-ghost:hover {
            background-color: var(--c-accent-soft);
            border-color: var(--c-accent);
            color: var(--c-primary);
        }

        .resource-meta {
            font-size: 12px;
            color: var(--c-text-light);
            letter-spacing: 0.02em;
            margin-top: 6px;
        }

        /* 说明区 */
        .explainer-section {
            background-color: var(--c-surface);
            border-top: 1px solid var(--c-border);
            border-bottom: 1px solid var(--c-border);
            padding: 56px 0;
        }

        .explainer-content {
            max-width: 820px;
            margin: 0 auto;
        }

        .explainer-content h2 {
            font-size: clamp(22px, 2.8vw, 30px);
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 14px;
        }

        .explainer-content h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background-color: var(--c-accent);
        }

        .explainer-content p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--c-text-light);
            margin-bottom: 16px;
        }

        .explainer-content p strong {
            color: var(--c-primary);
            font-weight: 600;
        }

        /* CTA区 */
        .cta-section {
            background-color: var(--c-bg-deep);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            left: 50%;
            transform: translateX(-50%);
            width: 320px;
            height: 160px;
            background: radial-gradient(ellipse, rgba(176, 141, 91, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            color: var(--c-text-on-dark);
            font-size: clamp(24px, 3.2vw, 36px);
            font-weight: 700;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: rgba(246, 242, 234, 0.72);
            font-size: 15px;
            max-width: 560px;
            margin: 0 auto 26px;
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }

        .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .btn-accent {
            background-color: var(--c-accent);
            color: var(--c-text-on-dark);
            border-radius: var(--radius-btn);
            padding: 11px 28px;
            font-size: 14px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, transform 0.2s ease, box-shadow 0.28s ease;
            box-shadow: var(--shadow-sm);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-accent:hover {
            background-color: #9a7a4d;
            box-shadow: var(--shadow-md);
        }

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

        .btn-outline-light {
            background: transparent;
            color: var(--c-text-on-dark);
            border: 1px solid rgba(246, 242, 234, 0.4);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 14px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, border-color 0.28s ease;
        }

        .btn-outline-light:hover {
            background-color: rgba(246, 242, 234, 0.1);
            border-color: rgba(246, 242, 234, 0.7);
        }

        /* 页脚 */
        .site-footer {
            background-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
            padding: 48px 0 32px;
            border-top: 1px solid rgba(246, 242, 234, 0.08);
        }

        .footer-top {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .footer-brand {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 26px;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--c-text-on-dark);
        }

        .footer-brand-divider {
            width: 1px;
            height: 18px;
            background-color: rgba(246, 242, 234, 0.25);
            flex-shrink: 0;
        }

        .footer-brand-desc {
            font-size: 13px;
            color: rgba(246, 242, 234, 0.65);
            letter-spacing: 0.04em;
        }

        .footer-links {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px;
            margin-bottom: 28px;
        }

        .footer-links a {
            font-size: 13px;
            color: rgba(246, 242, 234, 0.7);
            padding: 4px 12px;
            border-radius: 3px;
            transition: color 0.28s ease, background-color 0.28s ease;
        }

        .footer-links a:hover {
            color: var(--c-accent);
            background-color: rgba(246, 242, 234, 0.05);
        }

        .footer-bottom {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 18px;
            padding-top: 18px;
            border-top: 1px solid rgba(246, 242, 234, 0.1);
            font-size: 12px;
            color: rgba(246, 242, 234, 0.55);
        }

        .footer-bottom p {
            line-height: 1.7;
        }

        .footer-tech-links {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
            font-size: 12px;
        }

        .footer-tech-links a {
            color: rgba(246, 242, 234, 0.55);
            transition: color 0.28s ease;
        }

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

        /* 响应式 */
        @media (max-width: 1023px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .resource-grid {
                gap: 18px;
            }

            .resource-card {
                padding: 22px;
                gap: 16px;
            }

            .resource-card-thumb {
                width: 82px;
                height: 82px;
            }
        }

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

            .header-inner {
                padding-top: 14px;
                padding-bottom: 14px;
            }

            .brand-logo {
                font-size: 24px;
            }

            .brand-divider {
                display: none;
            }

            .nav-channels {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding-top: 12px;
                gap: 2px;
            }

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

            .nav-channels a {
                padding: 8px 0;
                font-size: 14px;
                width: 100%;
                border-bottom: 1px solid var(--c-border);
            }

            .nav-channels a:last-child {
                border-bottom: none;
            }

            .header-right .search-icon-btn {
                display: none;
            }

            .hamburger-btn {
                display: flex;
            }

            .page-banner {
                padding: 40px 0 32px;
            }

            .page-banner h1 {
                font-size: 26px;
            }

            .page-banner p {
                font-size: 14px;
            }

            .resource-section {
                padding: 40px 0 32px;
            }

            .resource-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .resource-card {
                padding: 18px;
                flex-direction: column;
                gap: 14px;
            }

            .resource-card.is-full {
                grid-column: auto;
            }

            .resource-card-thumb {
                width: 100%;
                height: 160px;
                border-radius: var(--radius-img);
            }

            .resource-card-title {
                font-size: 17px;
            }

            .resource-card-desc {
                font-size: 13px;
            }

            .resource-card-actions {
                flex-wrap: wrap;
                gap: 10px;
            }

            .btn-primary {
                padding: 8px 18px;
                font-size: 13px;
            }

            .btn-ghost {
                padding: 7px 14px;
                font-size: 12px;
            }

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

            .explainer-content p {
                font-size: 14px;
            }

            .cta-section {
                padding: 44px 0;
            }

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

            .footer-top {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .footer-brand-divider {
                display: none;
            }

            .footer-links {
                gap: 2px;
            }

            .footer-links a {
                padding: 4px 8px;
                font-size: 12px;
            }

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

        @media (max-width: 520px) {
            .brand-logo {
                font-size: 22px;
            }

            .page-banner h1 {
                font-size: 22px;
            }

            .resource-card-thumb {
                height: 140px;
            }

            .cta-actions {
                flex-direction: column;
                gap: 12px;
                width: 100%;
            }

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

        /* 焦点可见性 */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 2px;
        }

/* roulang page: category5 */
:root {
            --c-primary: #1F2D2A;
            --c-primary-light: #33433E;
            --c-accent: #B08D5B;
            --c-accent-soft: #E8DCC8;
            --c-bg: #F6F2EA;
            --c-bg-deep: #1F2D2A;
            --c-surface: #FFFCF5;
            --c-text: #1A1A18;
            --c-text-light: #5C625C;
            --c-text-on-dark: #F6F2EA;
            --c-border: rgba(31, 45, 42, 0.14);
            --c-emphasis: #8C4A32;
            --shadow-sm: 0 1px 3px rgba(31, 45, 42, 0.05);
            --shadow-md: 0 4px 24px rgba(31, 45, 42, 0.07), 0 1px 4px rgba(31, 45, 42, 0.06);
            --shadow-lg: 0 8px 40px rgba(31, 45, 42, 0.10);
            --radius-card: 6px;
            --radius-btn: 4px;
            --radius-img: 4px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
            background-color: var(--c-bg);
            color: var(--c-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.28s ease;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
        }
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .brand-logo {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--c-primary);
            white-space: nowrap;
            line-height: 1.2;
        }
        .brand-logo a {
            color: inherit;
        }
        .brand-divider {
            width: 1px;
            height: 20px;
            background-color: var(--c-border);
            flex-shrink: 0;
            margin: 0 16px;
        }
        .nav-channels {
            display: flex;
            align-items: center;
            gap: 0;
            flex-wrap: wrap;
        }
        .nav-channels a {
            font-size: 13px;
            letter-spacing: 0.08em;
            color: var(--c-text-light);
            padding: 6px 14px;
            position: relative;
            transition: color 0.28s ease;
            white-space: nowrap;
        }
        .nav-channels a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            width: 0;
            height: 2px;
            background-color: var(--c-accent);
            transform: translateX(-50%);
            transition: width 0.28s ease;
        }
        .nav-channels a:hover,
        .nav-channels a.active {
            color: var(--c-primary);
        }
        .nav-channels a:hover::after,
        .nav-channels a.active::after {
            width: 60%;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-icon-btn {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: var(--c-text-light);
            transition: background-color 0.28s ease, color 0.28s ease;
        }
        .search-icon-btn:hover {
            background-color: var(--c-accent-soft);
            color: var(--c-primary);
        }
        .subscribe-btn {
            border: 1px solid var(--c-primary);
            color: var(--c-primary);
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-size: 13px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, color 0.28s ease;
            white-space: nowrap;
        }
        .subscribe-btn:hover {
            background-color: var(--c-primary);
            color: var(--c-text-on-dark);
        }
        .hamburger-btn {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 36px;
            height: 36px;
            padding: 6px;
            border-radius: 4px;
            transition: background-color 0.28s ease;
        }
        .hamburger-btn span {
            display: block;
            height: 2px;
            background-color: var(--c-primary);
            border-radius: 1px;
            transition: transform 0.28s ease, opacity 0.28s ease;
        }
        .hamburger-btn:hover {
            background-color: var(--c-accent-soft);
        }
        .site-header {
            background-color: var(--c-bg);
            border-bottom: 1px solid var(--c-border);
            padding: 20px 0;
            position: sticky;
            top: 0;
            z-index: 50;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .header-left {
            display: flex;
            align-items: center;
            gap: 0;
            flex-wrap: wrap;
        }
        .site-footer {
            background-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
            padding: 48px 0 32px;
            margin-top: 80px;
        }
        .footer-top {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }
        .footer-brand {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 28px;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--c-text-on-dark);
        }
        .footer-brand-divider {
            width: 1px;
            height: 22px;
            background-color: rgba(246, 242, 234, 0.3);
        }
        .footer-brand-desc {
            font-size: 13px;
            color: rgba(246, 242, 234, 0.7);
            letter-spacing: 0.06em;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 4px 12px;
            margin-bottom: 28px;
        }
        .footer-links a {
            font-size: 13px;
            color: rgba(246, 242, 234, 0.75);
            padding: 4px 8px;
            transition: color 0.28s ease;
        }
        .footer-links a:hover {
            color: var(--c-accent);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: flex-start;
            gap: 16px;
            border-top: 1px solid rgba(246, 242, 234, 0.15);
            padding-top: 20px;
        }
        .footer-bottom p {
            font-size: 12px;
            color: rgba(246, 242, 234, 0.6);
            line-height: 1.9;
        }
        .footer-tech-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-tech-links a {
            font-size: 12px;
            color: rgba(246, 242, 234, 0.65);
            transition: color 0.28s ease;
        }
        .footer-tech-links a:hover {
            color: var(--c-accent);
        }
        .page-hero {
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 80px 0 60px;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(246, 242, 234, 0.93) 0%, rgba(246, 242, 234, 0.78) 50%, rgba(232, 220, 200, 0.55) 100%);
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
        }
        .page-hero-label {
            display: inline-block;
            background-color: var(--c-accent-soft);
            color: var(--c-primary);
            font-size: 13px;
            letter-spacing: 0.12em;
            padding: 4px 14px;
            border-radius: 2px;
            margin-bottom: 16px;
            font-weight: 500;
        }
        .page-hero h1 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: clamp(30px, 4.5vw, 48px);
            font-weight: 700;
            color: var(--c-primary);
            line-height: 1.25;
            letter-spacing: 0.01em;
            margin-bottom: 16px;
        }
        .page-hero p {
            font-size: 17px;
            color: var(--c-text-light);
            max-width: 700px;
            line-height: 1.9;
        }
        .timeline-section {
            padding: 60px 0 40px;
        }
        .timeline-wrapper {
            position: relative;
            padding-left: 2px;
        }
        .timeline-wrapper::before {
            content: '';
            position: absolute;
            left: 7px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: linear-gradient(to bottom, var(--c-accent), var(--c-accent-soft), var(--c-accent));
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            padding-left: 40px;
            margin-bottom: 40px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-dot {
            position: absolute;
            left: 0;
            top: 6px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background-color: var(--c-accent);
            border: 3px solid var(--c-bg);
            box-shadow: 0 0 0 2px var(--c-accent);
            z-index: 2;
        }
        .timeline-dot.completed {
            background-color: var(--c-primary);
            box-shadow: 0 0 0 2px var(--c-primary);
        }
        .timeline-card {
            background-color: var(--c-surface);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.28s ease, transform 0.28s ease;
        }
        .timeline-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .timeline-date {
            display: inline-block;
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 14px;
            color: var(--c-accent);
            letter-spacing: 0.08em;
            margin-bottom: 8px;
            font-weight: 600;
        }
        .timeline-card h3 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: 20px;
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .timeline-card p {
            font-size: 15px;
            color: var(--c-text-light);
            line-height: 1.8;
            margin-bottom: 14px;
        }
        .timeline-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--c-primary);
            font-weight: 500;
            letter-spacing: 0.02em;
            transition: color 0.28s ease, gap 0.28s ease;
        }
        .timeline-read-more .arrow {
            display: inline-block;
            transition: transform 0.28s ease;
        }
        .timeline-read-more:hover {
            color: var(--c-accent);
            gap: 10px;
        }
        .timeline-read-more:hover .arrow {
            transform: translateX(4px);
        }
        .section-highlight {
            padding: 60px 0;
            background-color: var(--c-accent-soft);
            border-top: 1px solid var(--c-border);
            border-bottom: 1px solid var(--c-border);
        }
        .section-highlight h2 {
            font-family: 'Noto Serif SC', 'Songti SC', serif;
            font-size: clamp(22px, 3vw, 32px);
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 16px;
        }
        .section-highlight p {
            font-size: 16px;
            color: var(--c-text-light);
            line-height: 1.9;
            max-width: 800px;
        }
        .focus-visible:focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 2px;
        }
        @media (min-width: 1024px) {
            .brand-divider {
                display: block;
            }
            .nav-channels {
                display: flex;
                flex-direction: row;
                align-items: center;
            }
            .hamburger-btn {
                display: none;
            }
            .nav-actions .search-icon-btn {
                display: flex;
            }
            .timeline-card {
                padding: 28px 32px;
            }
        }
        @media (max-width: 1023px) and (min-width: 768px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .nav-channels a {
                padding: 6px 10px;
                font-size: 12px;
            }
            .brand-logo {
                font-size: 26px;
            }
        }
        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .brand-logo {
                font-size: 24px;
            }
            .brand-divider {
                display: none;
            }
            .nav-channels {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding-top: 12px;
                gap: 4px;
            }
            .nav-channels.open {
                display: flex;
            }
            .nav-channels a {
                padding: 8px 0;
                font-size: 14px;
            }
            .nav-actions .search-icon-btn {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .subscribe-btn {
                padding: 6px 14px;
                font-size: 12px;
            }
            .page-hero {
                padding: 50px 0 40px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .timeline-section {
                padding: 40px 0 20px;
            }
            .timeline-item {
                padding-left: 32px;
                margin-bottom: 28px;
            }
            .timeline-wrapper::before {
                left: 6px;
            }
            .timeline-dot {
                width: 14px;
                height: 14px;
                top: 5px;
            }
            .timeline-card {
                padding: 18px 16px;
            }
            .timeline-card h3 {
                font-size: 18px;
            }
            .timeline-card p {
                font-size: 14px;
            }
            .footer-top {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-brand-divider {
                display: none;
            }
            .footer-links {
                flex-direction: column;
                gap: 2px;
            }
            .footer-bottom {
                flex-direction: column;
            }
        }
        @media (max-width: 519px) {
            .header-inner {
                gap: 8px;
            }
            .brand-logo {
                font-size: 22px;
            }
            .subscribe-btn {
                display: none;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .timeline-card {
                padding: 16px 14px;
            }
        }

/* roulang page: category6 */
:root {
            --c-primary: #1F2D2A;
            --c-primary-light: #33433E;
            --c-accent: #B08D5B;
            --c-accent-soft: #E8DCC8;
            --c-bg: #F6F2EA;
            --c-bg-deep: #1F2D2A;
            --c-surface: #FFFCF5;
            --c-text: #1A1A18;
            --c-text-light: #5C625C;
            --c-text-on-dark: #F6F2EA;
            --c-border: rgba(31, 45, 42, 0.14);
            --c-emphasis: #8C4A32;
            --shadow-sm: 0 1px 3px rgba(31, 45, 42, 0.05);
            --shadow-md: 0 4px 24px rgba(31, 45, 42, 0.07), 0 1px 4px rgba(31, 45, 42, 0.06);
            --shadow-lg: 0 8px 40px rgba(31, 45, 42, 0.10);
            --radius-card: 6px;
            --radius-btn: 4px;
            --radius-img: 4px;
            --font-serif: 'Noto Serif SC', 'Songti SC', 'SimSun', serif;
            --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 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);
            background-color: var(--c-bg);
            color: var(--c-text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.28s ease;
        }

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

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

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

        :focus-visible {
            outline: 2px solid var(--c-accent);
            outline-offset: 2px;
        }

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

        /* ===== 顶部公告栏 ===== */
        .topbar {
            background-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
            font-size: 12px;
            letter-spacing: 0.06em;
            padding: 6px 0;
            text-align: center;
            position: relative;
            z-index: 50;
        }

        .topbar span {
            opacity: 0.85;
        }

        /* ===== 杂志刊头导航 ===== */
        .masthead {
            background-color: var(--c-bg);
            border-bottom: 1px solid var(--c-border);
            padding: 18px 0;
            position: sticky;
            top: 0;
            z-index: 40;
            transition: box-shadow 0.3s ease;
        }

        .masthead.scrolled {
            box-shadow: 0 2px 16px rgba(31, 45, 42, 0.08);
        }

        .masthead-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .brand-logo {
            font-family: var(--font-serif);
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--c-primary);
            white-space: nowrap;
            line-height: 1.2;
            transition: color 0.28s ease;
        }

        .brand-logo a {
            color: inherit;
        }

        .brand-logo a:hover {
            color: var(--c-accent);
        }

        .brand-divider {
            width: 1px;
            height: 20px;
            background-color: var(--c-border);
            flex-shrink: 0;
            margin: 0 16px;
            display: none;
        }

        .nav-channels {
            display: flex;
            align-items: center;
            gap: 0;
            flex-wrap: wrap;
            flex: 1;
            min-width: 0;
        }

        .nav-channels a {
            font-size: 13px;
            letter-spacing: 0.08em;
            color: var(--c-text-light);
            padding: 6px 14px;
            position: relative;
            transition: color 0.28s ease;
            white-space: nowrap;
        }

        .nav-channels a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            width: 0;
            height: 2px;
            background-color: var(--c-accent);
            transform: translateX(-50%);
            transition: width 0.28s ease;
        }

        .nav-channels a:hover,
        .nav-channels a.active {
            color: var(--c-primary);
        }

        .nav-channels a:hover::after,
        .nav-channels a.active::after {
            width: 55%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-icon-btn {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            color: var(--c-text-light);
            transition: background-color 0.28s ease, color 0.28s ease;
            flex-shrink: 0;
        }

        .search-icon-btn:hover {
            background-color: var(--c-accent-soft);
            color: var(--c-primary);
        }

        .subscribe-btn {
            border: 1px solid var(--c-primary);
            color: var(--c-primary);
            border-radius: var(--radius-btn);
            padding: 8px 18px;
            font-size: 13px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, color 0.28s ease;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .subscribe-btn:hover {
            background-color: var(--c-primary);
            color: var(--c-text-on-dark);
        }

        .hamburger-btn {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 36px;
            height: 36px;
            padding: 6px;
            border-radius: 4px;
            transition: background-color 0.28s ease;
            flex-shrink: 0;
        }

        .hamburger-btn span {
            display: block;
            height: 2px;
            background-color: var(--c-primary);
            border-radius: 1px;
            transition: transform 0.28s ease, opacity 0.28s ease;
        }

        .hamburger-btn:hover {
            background-color: var(--c-accent-soft);
        }

        .hamburger-btn.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger-btn.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger-btn.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== 页面标题区 ===== */
        .page-hero {
            background-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
            padding: 64px 0 56px;
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
        }

        .page-hero-content {
            position: relative;
            z-index: 1;
        }

        .page-hero h1 {
            font-family: var(--font-serif);
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.02em;
            margin-bottom: 16px;
            color: var(--c-text-on-dark);
        }

        .page-hero h1 .accent {
            color: var(--c-accent);
        }

        .page-hero .hero-desc {
            font-size: 16px;
            color: rgba(246, 242, 234, 0.75);
            max-width: 720px;
            line-height: 1.9;
        }

        .page-hero .hero-meta {
            margin-top: 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(246, 242, 234, 0.6);
            letter-spacing: 0.04em;
        }

        .page-hero .hero-meta .dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background-color: var(--c-accent);
            display: inline-block;
        }

        /* ===== 指南布局 ===== */
        .guide-section {
            padding: 64px 0 80px;
        }

        .guide-layout {
            display: grid;
            grid-template-columns: 260px 1fr;
            gap: 48px;
            align-items: start;
        }

        /* 左侧迷你目录 */
        .guide-toc {
            position: sticky;
            top: 100px;
            background-color: var(--c-surface);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.28s ease;
        }

        .guide-toc:hover {
            box-shadow: var(--shadow-md);
        }

        .guide-toc-title {
            font-family: var(--font-serif);
            font-size: 15px;
            font-weight: 700;
            color: var(--c-primary);
            letter-spacing: 0.06em;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--c-accent);
            display: inline-block;
        }

        .guide-toc-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .guide-toc-list a {
            display: flex;
            align-items: baseline;
            gap: 8px;
            padding: 8px 10px;
            border-radius: 4px;
            font-size: 14px;
            color: var(--c-text-light);
            transition: all 0.25s ease;
            line-height: 1.5;
        }

        .guide-toc-list a .toc-num {
            font-family: var(--font-serif);
            font-size: 12px;
            color: var(--c-accent);
            flex-shrink: 0;
            letter-spacing: 0.04em;
        }

        .guide-toc-list a:hover,
        .guide-toc-list a.active-toc {
            background-color: var(--c-accent-soft);
            color: var(--c-primary);
        }

        .guide-toc-list a.active-toc {
            font-weight: 600;
        }

        /* 右侧长文区 */
        .guide-content {
            min-width: 0;
        }

        .guide-chapter {
            margin-bottom: 56px;
            scroll-margin-top: 100px;
        }

        .guide-chapter:last-child {
            margin-bottom: 0;
        }

        .chapter-header {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 20px;
        }

        .chapter-number {
            font-family: var(--font-serif);
            font-size: clamp(48px, 6vw, 72px);
            font-weight: 700;
            color: var(--c-accent);
            line-height: 1;
            opacity: 0.85;
            letter-spacing: 0.02em;
            flex-shrink: 0;
            user-select: none;
        }

        .chapter-title-wrap {
            flex: 1;
            min-width: 0;
        }

        .chapter-title-wrap h2 {
            font-family: var(--font-serif);
            font-size: clamp(19px, 2.4vw, 24px);
            font-weight: 700;
            color: var(--c-primary);
            line-height: 1.4;
            letter-spacing: 0.01em;
        }

        .chapter-title-wrap .chapter-sub {
            font-size: 13px;
            color: var(--c-text-light);
            letter-spacing: 0.06em;
            margin-top: 2px;
        }

        .chapter-divider {
            width: 100%;
            height: 1px;
            background: linear-gradient(to right, var(--c-accent) 0%, var(--c-accent) 48px, var(--c-border) 48px, var(--c-border) 100%);
            margin: 0 0 24px;
        }

        .chapter-body {
            font-size: 16px;
            line-height: 2;
            color: var(--c-text);
        }

        .chapter-body p {
            margin-bottom: 16px;
        }

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

        .chapter-body .highlight-box {
            background-color: var(--c-accent-soft);
            border-left: 3px solid var(--c-accent);
            padding: 16px 20px;
            border-radius: 0 var(--radius-card) var(--radius-card) 0;
            margin: 20px 0;
            font-size: 15px;
            color: var(--c-primary);
            line-height: 1.9;
        }

        .chapter-body .highlight-box strong {
            font-family: var(--font-serif);
            color: var(--c-emphasis);
        }

        .chapter-body .data-point {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin: 20px 0;
        }

        .chapter-body .data-chip {
            background-color: var(--c-surface);
            border: 1px solid var(--c-border);
            border-radius: var(--radius-btn);
            padding: 6px 14px;
            font-size: 13px;
            color: var(--c-text-light);
            letter-spacing: 0.03em;
            transition: all 0.25s ease;
        }

        .chapter-body .data-chip:hover {
            border-color: var(--c-accent);
            color: var(--c-primary);
            background-color: var(--c-accent-soft);
        }

        .chapter-body .chapter-image {
            margin: 24px 0;
            border-radius: var(--radius-img);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .chapter-body .chapter-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform 0.4s ease;
        }

        .chapter-body .chapter-image:hover img {
            transform: scale(1.02);
        }

        /* ===== CTA区域 ===== */
        .guide-cta {
            background-color: var(--c-bg-deep);
            padding: 56px 0;
            margin-top: 8px;
            position: relative;
            overflow: hidden;
        }

        .guide-cta::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
        }

        .guide-cta-content {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .guide-cta-text {
            flex: 1;
            min-width: 260px;
        }

        .guide-cta-text h2 {
            font-family: var(--font-serif);
            font-size: clamp(22px, 3vw, 32px);
            font-weight: 700;
            color: var(--c-text-on-dark);
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .guide-cta-text p {
            font-size: 15px;
            color: rgba(246, 242, 234, 0.7);
            line-height: 1.8;
        }

        .guide-cta-buttons {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        .btn-primary {
            background-color: var(--c-primary);
            color: var(--c-text-on-dark);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 14px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, transform 0.2s ease;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--c-primary);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background-color: var(--c-primary-light);
            border-color: var(--c-primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-accent {
            background-color: var(--c-accent);
            color: var(--c-text-on-dark);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 14px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, transform 0.2s ease;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--c-accent);
            white-space: nowrap;
        }

        .btn-accent:hover {
            background-color: #9a7a4c;
            border-color: #9a7a4c;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-accent:active {
            transform: scale(0.98);
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--c-primary);
            border: 1px solid var(--c-primary);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 14px;
            letter-spacing: 0.04em;
            transition: background-color 0.28s ease, color 0.28s ease, transform 0.2s ease;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background-color: var(--c-accent-soft);
            color: var(--c-primary);
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background-color: var(--c-bg-deep);
            color: var(--c-text-on-dark);
            padding: 48px 0 32px;
        }

        .footer-top {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .footer-brand {
            font-family: var(--font-serif);
            font-size: 28px;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: var(--c-text-on-dark);
        }

        .footer-brand-divider {
            width: 1px;
            height: 20px;
            background-color: rgba(246, 242, 234, 0.2);
            flex-shrink: 0;
        }

        .footer-brand-desc {
            font-size: 13px;
            color: rgba(246, 242, 234, 0.6);
            letter-spacing: 0.06em;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            margin-bottom: 28px;
            padding-bottom: 20px;
            border-bottom: 1px solid rgba(246, 242, 234, 0.1);
        }

        .footer-links a {
            font-size: 13px;
            color: rgba(246, 242, 234, 0.7);
            letter-spacing: 0.04em;
            transition: color 0.28s ease;
        }

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

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

        .footer-bottom p {
            font-size: 12px;
            color: rgba(246, 242, 234, 0.55);
            line-height: 1.9;
            letter-spacing: 0.02em;
        }

        .footer-tech-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
        }

        .footer-tech-links a {
            color: rgba(246, 242, 234, 0.55);
            transition: color 0.28s ease;
        }

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

        /* ===== 响应式断点 ===== */
        @media (min-width: 1024px) {
            .brand-divider {
                display: block;
            }
            .nav-channels {
                display: flex !important;
                flex-direction: row;
                align-items: center;
                width: auto;
                padding-top: 0;
                gap: 0;
            }
            .nav-channels a {
                padding: 6px 14px;
                font-size: 13px;
            }
            .hamburger-btn {
                display: none;
            }
            .nav-actions .search-icon-btn {
                display: flex;
            }
        }

        @media (max-width: 1023px) and (min-width: 768px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .guide-layout {
                grid-template-columns: 200px 1fr;
                gap: 32px;
            }
            .guide-toc {
                top: 90px;
                padding: 18px 14px;
            }
            .guide-toc-list a {
                font-size: 13px;
                padding: 6px 8px;
            }
            .chapter-number {
                font-size: 48px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .masthead {
                padding: 12px 0;
            }
            .brand-logo {
                font-size: 24px;
            }
            .brand-divider {
                display: none;
            }
            .nav-channels {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding-top: 12px;
                gap: 4px;
                order: 10;
            }
            .nav-channels.open {
                display: flex;
            }
            .nav-channels a {
                padding: 8px 4px;
                font-size: 14px;
                width: 100%;
            }
            .nav-channels a::after {
                bottom: 0;
                left: 4px;
                transform: none;
            }
            .nav-channels a:hover::after,
            .nav-channels a.active::after {
                width: 32px;
            }
            .nav-actions .search-icon-btn {
                display: none;
            }
            .subscribe-btn {
                padding: 6px 14px;
                font-size: 12px;
            }
            .hamburger-btn {
                display: flex;
            }
            .masthead-inner {
                flex-wrap: wrap;
            }

            .page-hero {
                padding: 48px 0 40px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .page-hero .hero-desc {
                font-size: 14px;
                line-height: 1.8;
            }

            .guide-section {
                padding: 40px 0 56px;
            }
            .guide-layout {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .guide-toc {
                position: relative;
                top: auto;
                margin-bottom: 32px;
                padding: 16px 14px;
            }
            .guide-toc-title {
                font-size: 14px;
                margin-bottom: 10px;
                padding-bottom: 8px;
            }
            .guide-toc-list {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 6px;
            }
            .guide-toc-list a {
                padding: 6px 10px;
                font-size: 12px;
                border: 1px solid var(--c-border);
                border-radius: 20px;
                background-color: var(--c-surface);
            }
            .guide-toc-list a:hover,
            .guide-toc-list a.active-toc {
                background-color: var(--c-accent-soft);
                border-color: var(--c-accent);
                border-radius: 20px;
            }

            .guide-chapter {
                margin-bottom: 40px;
                scroll-margin-top: 80px;
            }
            .chapter-header {
                gap: 10px;
                margin-bottom: 12px;
            }
            .chapter-number {
                font-size: 36px;
            }
            .chapter-title-wrap h2 {
                font-size: 18px;
            }
            .chapter-divider {
                margin-bottom: 16px;
            }
            .chapter-body {
                font-size: 15px;
                line-height: 1.9;
            }
            .chapter-body .highlight-box {
                padding: 12px 16px;
                font-size: 14px;
                margin: 16px 0;
            }
            .chapter-body .data-chip {
                font-size: 12px;
                padding: 4px 10px;
            }

            .guide-cta {
                padding: 40px 0;
            }
            .guide-cta-content {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }
            .guide-cta-text h2 {
                font-size: 20px;
            }

            .site-footer {
                padding: 32px 0 24px;
            }
            .footer-brand {
                font-size: 22px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
        }

        @media (max-width: 480px) {
            .page-hero h1 {
                font-size: 20px;
            }
            .chapter-number {
                font-size: 28px;
            }
            .chapter-title-wrap h2 {
                font-size: 16px;
            }
            .chapter-body {
                font-size: 14px;
            }
            .guide-cta-buttons {
                width: 100%;
                flex-direction: column;
            }
            .guide-cta-buttons .btn-primary,
            .guide-cta-buttons .btn-accent,
            .guide-cta-buttons .btn-secondary {
                width: 100%;
                text-align: center;
            }
        }