/* roulang page: index */
:root {
            --color-ink: #1F4A42;
            --color-ink-deep: #1F3D36;
            --color-clay: #C96F45;
            --color-clay-light: #D97B4F;
            --color-cream: #F7F4EF;
            --color-paper: #FCFAF6;
            --color-charcoal: #101413;
            --color-charcoal-light: #161A18;
            --color-text-main: #1F2320;
            --color-text-sub: #5C625E;
            --color-text-weak: #8E948F;
            --color-text-on-dark: #F2EFE9;
            --color-text-on-dark-sub: #B7BFBA;
            --radius-card: 12px;
            --radius-image: 16px;
            --radius-pill: 999px;
            --shadow-card: 0 12px 40px rgba(20, 25, 22, 0.06);
            --shadow-card-hover: 0 18px 50px rgba(20, 25, 22, 0.10);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background-color: #F7F4EF;
            color: #1F2320;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
            overflow-x: hidden;
        }

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

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

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

        input {
            border: none;
            outline: none;
        }

        /* ===== 导航系统 ===== */
        #site-nav {
            position: fixed;
            top: 0;
            inset-x: 0;
            z-index: 50;
            background: rgba(16, 20, 18, 0.28);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.10);
            transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease, padding 0.35s ease;
            padding-top: 0;
            padding-bottom: 0;
        }

        #site-nav.scrolled {
            background: rgba(247, 244, 239, 0.98);
            border-bottom: 1px solid rgba(31, 58, 54, 0.10);
            box-shadow: 0 4px 24px rgba(20, 25, 22, 0.06);
        }

        #site-nav .nav-link {
            color: rgba(255, 255, 255, 0.88);
            transition: color 0.25s ease, opacity 0.25s ease;
            font-size: 15px;
            letter-spacing: 0.02em;
            position: relative;
            padding: 6px 2px;
        }

        #site-nav .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: #D97B4F;
            transition: width 0.3s ease;
            border-radius: 2px;
        }

        #site-nav .nav-link:hover::after,
        #site-nav .nav-link.active::after {
            width: 100%;
        }

        #site-nav .nav-link:hover {
            color: #ffffff;
        }

        #site-nav .nav-link.active {
            color: #ffffff;
            font-weight: 500;
        }

        #site-nav.scrolled .nav-link {
            color: #1F2320;
        }

        #site-nav.scrolled .nav-link:hover {
            color: #1F4A42;
        }

        #site-nav.scrolled .nav-link.active {
            color: #1F4A42;
            font-weight: 600;
        }

        #site-nav .btn-nav-cta {
            border: 1px solid rgba(255, 255, 255, 0.45);
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 999px;
            padding: 8px 20px;
            font-size: 14px;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        #site-nav .btn-nav-cta:hover {
            background: rgba(255, 255, 255, 0.18);
            border-color: rgba(255, 255, 255, 0.7);
            transform: translateY(-1px);
        }

        #site-nav.scrolled .btn-nav-cta {
            background: #1F4A42;
            color: #fff;
            border-color: #1F4A42;
        }

        #site-nav.scrolled .btn-nav-cta:hover {
            background: #1F3D36;
            box-shadow: 0 6px 20px rgba(31, 58, 54, 0.25);
        }

        /* 搜索框 */
        .search-wrap {
            position: relative;
        }

        .search-box {
            position: absolute;
            right: 0;
            top: calc(100% + 12px);
            width: 280px;
            background: #FCFAF6;
            border-radius: 12px;
            box-shadow: 0 16px 40px rgba(20, 25, 22, 0.15);
            padding: 12px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: all 0.3s ease;
            z-index: 60;
        }

        .search-box.open {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .search-box input {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid rgba(31, 58, 54, 0.15);
            border-radius: 8px;
            font-size: 14px;
            background: #fff;
            transition: border-color 0.25s;
        }

        .search-box input:focus {
            border-color: #1F4A42;
            box-shadow: 0 0 0 3px rgba(31, 74, 66, 0.12);
        }

        /* 移动端菜单 */
        .mobile-menu {
            position: fixed;
            top: 0;
            right: 0;
            width: min(320px, 85vw);
            height: 100vh;
            background: #F7F4EF;
            z-index: 60;
            padding: 80px 28px 40px;
            box-shadow: -12px 0 40px rgba(20, 25, 22, 0.15);
            transform: translateX(100%);
            transition: transform 0.35s ease;
            overflow-y: auto;
        }

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

        .mobile-menu .nav-link {
            display: block;
            padding: 14px 0;
            font-size: 18px;
            color: #1F2320;
            border-bottom: 1px solid rgba(31, 58, 54, 0.08);
            font-weight: 500;
        }

        .mobile-menu .nav-link.active {
            color: #1F4A42;
            font-weight: 600;
        }

        .mobile-menu .btn-nav-cta {
            margin-top: 24px;
            width: 100%;
            justify-content: center;
            background: #1F4A42;
            color: #fff;
            border-color: #1F4A42;
            border-radius: 30px;
            padding: 12px 24px;
            font-size: 15px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .menu-overlay {
            position: fixed;
            inset: 0;
            background: rgba(16, 20, 18, 0.45);
            z-index: 55;
            opacity: 0;
            visibility: hidden;
            transition: all 0.35s ease;
            backdrop-filter: blur(4px);
        }

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

        /* ===== 倒计时动画 ===== */
        @keyframes countdownFlip {
            0% {
                opacity: 0;
                transform: translateY(-10px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .countdown-num {
            display: inline-block;
            transition: opacity 0.2s ease, transform 0.2s ease;
            font-variant-numeric: tabular-nums;
        }

        .countdown-num.flip {
            animation: countdownFlip 0.35s ease;
        }

        /* ===== FAQ 手风琴 ===== */
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-item.active .faq-answer {
            max-height: 320px;
        }

        .faq-icon {
            transition: transform 0.35s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

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

        /* ===== 图片缩放 ===== */
        .img-zoom {
            overflow: hidden;
        }

        .img-zoom img {
            transition: transform 0.5s ease;
        }

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

        /* ===== 通用按钮 ===== */
        .btn-primary {
            background: #1F4A42;
            color: #fff;
            border-radius: 999px;
            padding: 13px 30px;
            font-weight: 500;
            transition: all 0.3s ease;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: none;
            font-size: 15px;
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background: #1F3D36;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(31, 58, 54, 0.28);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-clay {
            background: #C96F45;
            color: #fff;
            border-radius: 999px;
            padding: 13px 30px;
            font-weight: 500;
            transition: all 0.3s ease;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: none;
            font-size: 15px;
            letter-spacing: 0.02em;
        }

        .btn-clay:hover {
            background: #D97B4F;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(201, 111, 69, 0.35);
        }

        .btn-clay:active {
            transform: translateY(0);
        }

        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            border-radius: 999px;
            padding: 13px 30px;
            font-weight: 500;
            transition: all 0.3s ease;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(4px);
            font-size: 15px;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.18);
            border-color: rgba(255, 255, 255, 0.8);
            transform: translateY(-2px);
        }

        .btn-outline-dark {
            border: 1px solid rgba(31, 58, 54, 0.35);
            color: #1F4A42;
            border-radius: 999px;
            padding: 13px 30px;
            font-weight: 500;
            transition: all 0.3s ease;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            font-size: 15px;
        }

        .btn-outline-dark:hover {
            background: rgba(31, 74, 66, 0.06);
            border-color: #1F4A42;
            transform: translateY(-2px);
        }

        .btn-primary:focus-visible,
        .btn-clay:focus-visible,
        .btn-outline-light:focus-visible,
        .btn-outline-dark:focus-visible,
        .form-input:focus-visible {
            outline: 3px solid rgba(31, 74, 66, 0.3);
            outline-offset: 2px;
        }

        /* ===== 表单输入 ===== */
        .form-input {
            background: rgba(255, 255, 255, 0.92);
            border: 1px solid rgba(31, 58, 54, 0.14);
            border-radius: 10px;
            padding: 14px 20px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            width: 100%;
            font-size: 14px;
            color: #1F2320;
        }

        .form-input::placeholder {
            color: #8E948F;
        }

        .form-input:focus {
            border-color: #1F4A42;
            box-shadow: 0 0 0 4px rgba(31, 74, 66, 0.12);
        }

        /* ===== 卡片 ===== */
        .card-hover {
            transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
        }

        .card-hover:hover {
            transform: translateY(-4px);
            box-shadow: 0 18px 50px rgba(20, 25, 22, 0.10);
            border-color: rgba(31, 74, 66, 0.3) !important;
        }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }

        ::-webkit-scrollbar-track {
            background: #F7F4EF;
        }

        ::-webkit-scrollbar-thumb {
            background: rgba(31, 74, 66, 0.25);
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: rgba(31, 74, 66, 0.4);
        }

        /* ===== Hero 背景 ===== */
        .hero-bg {
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
        }

        .hero-overlay {
            background: linear-gradient(180deg, rgba(16, 20, 18, 0.78) 0%, rgba(16, 20, 18, 0.48) 60%, rgba(16, 20, 18, 0.30) 100%);
        }

        /* ===== 正文区 ===== */
        .prose-content {
            font-size: 18px;
            line-height: 1.95;
            color: #1F2320;
        }

        .prose-content p {
            margin-bottom: 1.5em;
        }

        .prose-content h2 {
            font-size: 24px;
            font-weight: 600;
            color: #1F4A42;
            margin: 2em 0 0.8em;
            font-family: 'Noto Serif SC', 'Iowan Old Style', serif;
        }

        .prose-content h3 {
            font-size: 19px;
            font-weight: 600;
            color: #1F2320;
            margin: 1.8em 0 0.6em;
        }

        .prose-content a {
            color: #1F4A42;
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color 0.2s;
        }

        .prose-content a:hover {
            color: #C96F45;
        }

        .prose-content img {
            border-radius: 12px;
            margin: 2em 0;
            box-shadow: 0 12px 40px rgba(20, 25, 22, 0.10);
        }

        .prose-content blockquote {
            border-left: 4px solid #C96F45;
            padding-left: 1.2em;
            margin: 1.5em 0;
            color: #5C625E;
            font-style: italic;
        }

        .prose-content ul,
        .prose-content ol {
            margin: 1em 0;
            padding-left: 1.5em;
        }

        .prose-content li {
            margin-bottom: 0.5em;
        }

/* roulang page: category1 */
:root {
            --ink: #1F4A42;
            --clay: #C96F45;
            --warm-bg: #F7F4EF;
            --paper: #FCFAF6;
            --charcoal: #101413;
            --text-main: #1F2320;
            --text-sub: #5C625E;
            --text-weak: #8E948F;
            --border-soft: rgba(31, 58, 54, 0.12);
            --shadow-card: 0 12px 40px rgba(20, 25, 22, 0.06);
            --shadow-card-hover: 0 18px 50px rgba(20, 25, 22, 0.10);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background: var(--warm-bg);
            color: var(--text-main);
            font-family: 'Noto Sans SC', sans-serif;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        ::selection {
            background: rgba(201, 111, 69, 0.25);
            color: #1F2320;
        }
        #site-header {
            background: rgba(16, 20, 18, 0.32);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.10);
            transition: background .35s ease, box-shadow .35s ease, border-color .35s ease;
        }
        #site-header.scrolled {
            background: rgba(247, 244, 239, 0.98);
            border-bottom: 1px solid var(--border-soft);
            box-shadow: 0 8px 30px rgba(20, 25, 22, 0.06);
        }
        #site-header .nav-link {
            position: relative;
            color: rgba(255, 255, 255, 0.82);
            transition: color .3s ease;
            padding-bottom: 4px;
            font-weight: 500;
            font-size: 15px;
            letter-spacing: 0.02em;
        }
        #site-header .nav-link::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--clay);
            border-radius: 2px;
            transition: width .3s ease;
        }
        #site-header .nav-link:hover::after,
        #site-header .nav-link.active::after {
            width: 100%;
        }
        #site-header .nav-link.active {
            color: #ffffff;
        }
        #site-header.scrolled .nav-link {
            color: #1F2320;
        }
        #site-header.scrolled .nav-link.active {
            color: var(--ink);
        }
        #site-header .logo-text {
            color: #ffffff;
            transition: color .3s ease;
        }
        #site-header.scrolled .logo-text {
            color: #1F4A42;
        }
        #site-header .header-cta {
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: #ffffff;
            background: transparent;
            transition: all .3s ease;
        }
        #site-header.scrolled .header-cta {
            background: var(--ink);
            border-color: var(--ink);
            color: #ffffff;
        }
        #site-header .header-cta:hover {
            background: rgba(255, 255, 255, 0.15);
        }
        #site-header.scrolled .header-cta:hover {
            background: #173E37;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(31, 74, 66, 0.25);
        }
        #site-header .burger-btn {
            color: #ffffff;
            transition: color .3s ease;
        }
        #site-header.scrolled .burger-btn {
            color: #1F2320;
        }
        .mobile-menu {
            background: rgba(247, 244, 239, 0.98);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-top: 1px solid rgba(31, 58, 54, 0.10);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 320px;
        }
        .faq-icon {
            transition: transform .35s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item {
            border-top: 1px solid rgba(31, 58, 54, 0.10);
            transition: background .3s ease;
        }
        .faq-item:last-child {
            border-bottom: 1px solid rgba(31, 58, 54, 0.10);
        }
        .faq-item:hover {
            background: rgba(31, 74, 66, 0.03);
        }
        .schedule-card {
            transition: transform .4s ease, box-shadow .4s ease, border-color .4s ease;
        }
        .schedule-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(31, 74, 66, 0.3);
        }
        .schedule-card img {
            transition: transform .5s ease;
        }
        .schedule-card:hover img {
            transform: scale(1.04);
        }
        .schedule-card .card-arrow {
            transition: transform .3s ease, color .3s ease;
        }
        .schedule-card:hover .card-arrow {
            transform: translateX(6px);
            color: var(--clay);
        }
        .num-card {
            border: 1px solid rgba(31, 58, 54, 0.12);
            background: #FCFAF6;
            border-radius: 16px;
            padding: 28px;
            transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
        }
        .num-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(31, 74, 66, 0.25);
        }
        .num-card .num {
            font-family: 'Noto Serif SC', serif;
            font-size: 40px;
            font-weight: 700;
            line-height: 1;
            color: var(--clay);
            display: block;
        }
        .btn-primary {
            background: var(--ink);
            color: #fff;
            border-radius: 999px;
            padding: 12px 30px;
            font-weight: 500;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all .3s ease;
            box-shadow: 0 4px 18px rgba(31, 74, 66, 0.18);
            cursor: pointer;
        }
        .btn-primary:hover {
            background: #173E37;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(31, 74, 66, 0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-secondary {
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            border-radius: 999px;
            padding: 12px 30px;
            font-weight: 500;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all .3s ease;
            cursor: pointer;
            background: transparent;
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-2px);
        }
        .btn-clay {
            background: var(--clay);
            color: #fff;
            border-radius: 999px;
            padding: 12px 30px;
            font-weight: 500;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all .3s ease;
            box-shadow: 0 4px 18px rgba(201, 111, 69, 0.25);
            cursor: pointer;
        }
        .btn-clay:hover {
            background: #B85E38;
            transform: translateY(-2px);
            box-shadow: 0 8px 26px rgba(201, 111, 69, 0.32);
        }
        .section-title-line {
            display: inline-flex;
            align-items: center;
            gap: 14px;
        }
        .section-title-line::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 26px;
            background: var(--clay);
            border-radius: 4px;
        }
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: rgba(31, 58, 54, 0.06);
        }
        ::-webkit-scrollbar-thumb {
            background: rgba(31, 74, 66, 0.35);
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: rgba(31, 74, 66, 0.55);
        }
        .hero-bg {
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }
        .hero-bg::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(0, 0, 0, 0.72) 0%, rgba(0, 0, 0, 0.45) 55%, rgba(16, 20, 18, 0.55) 100%);
        }
        .form-input {
            width: 100%;
            background: rgba(255, 255, 255, 0.92);
            border: 1px solid rgba(31, 58, 54, 0.14);
            border-radius: 10px;
            padding: 12px 18px;
            font-size: 14px;
            color: #1F2320;
            outline: none;
            transition: border-color .3s ease, box-shadow .3s ease;
        }
        .form-input:focus {
            border-color: var(--ink);
            box-shadow: 0 0 0 4px rgba(31, 74, 66, 0.12);
        }
        .form-input::placeholder {
            color: #8E948F;
        }
        .stat-block {
            border-left: 2px solid rgba(31, 74, 66, 0.15);
            padding-left: 18px;
            transition: border-color .3s ease;
        }
        .stat-block:hover {
            border-left-color: var(--clay);
        }
        @media (max-width: 640px) {
            .num-card {
                padding: 20px;
            }
            .num-card .num {
                font-size: 32px;
            }
            .schedule-card .card-content {
                padding: 16px;
            }
        }

/* roulang page: article */
:root {
            --color-ink: #1F4A42;
            --color-ink-dark: #1F3D36;
            --color-clay: #C96F45;
            --color-clay-light: #D97B4F;
            --color-paper: #F7F4EF;
            --color-paper-light: #FCFAF6;
            --color-charcoal: #101413;
            --color-text-primary: #1F2320;
            --color-text-secondary: #5C625E;
            --color-text-muted: #8E948F;
            --radius-card: 12px;
            --radius-feature: 16px;
            --shadow-soft: 0 12px 40px rgba(20, 25, 22, 0.06);
            --shadow-hover: 0 18px 50px rgba(20, 25, 22, 0.10);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--color-paper);
            color: var(--color-text-primary);
            font-family: 'Noto Sans SC', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        ::-webkit-scrollbar {
            width: 10px;
        }
        ::-webkit-scrollbar-track {
            background: var(--color-paper);
        }
        ::-webkit-scrollbar-thumb {
            background: rgba(31, 58, 54, 0.25);
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: rgba(31, 58, 54, 0.4);
        }

        /* 导航滚动切换 */
        #siteHeader.scrolled {
            background: rgba(247, 244, 239, 0.98);
            border-bottom-color: rgba(31, 58, 54, 0.10);
            box-shadow: 0 4px 30px rgba(20, 25, 22, 0.06);
        }
        #siteHeader.scrolled .nav-logo-text {
            color: var(--color-ink-dark);
        }
        #siteHeader.scrolled .nav-link {
            color: var(--color-text-secondary);
        }
        #siteHeader.scrolled .nav-link.active {
            color: var(--color-ink);
        }
        #siteHeader.scrolled .nav-link:hover {
            color: var(--color-ink);
        }
        #siteHeader.scrolled .nav-cta {
            border-color: rgba(31, 58, 54, 0.25);
            color: var(--color-ink);
        }
        #siteHeader.scrolled .nav-cta:hover {
            background: var(--color-ink);
            color: #fff;
            border-color: var(--color-ink);
        }
        #siteHeader.scrolled .nav-mobile-btn {
            border-color: rgba(31, 58, 54, 0.25);
            color: var(--color-ink);
        }

        .nav-link {
            position: relative;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.3px;
            color: rgba(255, 255, 255, 0.85);
            transition: color 0.3s ease;
            padding: 6px 2px;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--color-clay);
            border-radius: 2px;
            transition: width 0.3s ease;
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }
        .nav-link.active {
            color: #fff;
        }

        /* 文章正文排版 */
        .article-content {
            font-size: 18px;
            line-height: 2.0;
            color: var(--color-text-primary);
        }
        .article-content p {
            margin-bottom: 1.5em;
        }
        .article-content h2 {
            font-family: 'Noto Serif SC', 'Iowan Old Style', 'Times New Roman', serif;
            font-size: 28px;
            font-weight: 600;
            color: var(--color-ink-dark);
            margin-top: 2.2em;
            margin-bottom: 0.8em;
            line-height: 1.4;
        }
        .article-content h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--color-ink-dark);
            margin-top: 1.8em;
            margin-bottom: 0.6em;
            line-height: 1.4;
        }
        .article-content a {
            color: var(--color-ink);
            border-bottom: 1px solid rgba(31, 74, 66, 0.3);
            transition: border-color 0.3s ease, color 0.3s ease;
        }
        .article-content a:hover {
            color: var(--color-clay);
            border-bottom-color: var(--color-clay);
        }
        .article-content img {
            border-radius: 12px;
            box-shadow: var(--shadow-soft);
            margin: 2em auto;
        }
        .article-content ul,
        .article-content ol {
            margin: 1.2em 0 1.6em;
            padding-left: 1.6em;
        }
        .article-content ul li,
        .article-content ol li {
            margin-bottom: 0.5em;
        }
        .article-content blockquote {
            border-left: 4px solid var(--color-clay);
            padding: 0.8em 1.2em;
            margin: 1.8em 0;
            background: rgba(201, 111, 69, 0.06);
            border-radius: 0 12px 12px 0;
            color: var(--color-text-secondary);
            font-style: italic;
        }
        .article-content blockquote p {
            margin-bottom: 0;
        }
        .article-content code {
            background: rgba(31, 58, 54, 0.08);
            padding: 0.2em 0.5em;
            border-radius: 6px;
            font-size: 0.9em;
            font-family: 'SF Mono', 'Cascadia Code', Consolas, monospace;
        }
        .article-content pre {
            background: var(--color-charcoal);
            color: #e8e6e1;
            padding: 1.2em 1.5em;
            border-radius: 12px;
            overflow-x: auto;
            margin: 1.8em 0;
            font-size: 14px;
            line-height: 1.7;
        }
        .article-content pre code {
            background: transparent;
            padding: 0;
            color: inherit;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.8em 0;
            font-size: 15px;
        }
        .article-content table th,
        .article-content table td {
            border: 1px solid rgba(31, 58, 54, 0.12);
            padding: 10px 14px;
            text-align: left;
        }
        .article-content table th {
            background: rgba(31, 74, 66, 0.06);
            font-weight: 600;
            color: var(--color-ink-dark);
        }
        .article-content hr {
            border: none;
            border-top: 1px solid rgba(31, 58, 54, 0.12);
            margin: 2.5em 0;
        }

        /* 标签样式 */
        .tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(31, 74, 66, 0.08);
            color: var(--color-ink-dark);
            transition: background 0.3s ease, color 0.3s ease;
        }
        .tag-chip:hover {
            background: var(--color-ink);
            color: #fff;
        }

        /* 推荐卡片 */
        .rel-card {
            background: var(--color-paper-light);
            border: 1px solid rgba(31, 58, 54, 0.08);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
        }
        .rel-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(31, 74, 66, 0.25);
            transform: translateY(-4px);
        }
        .rel-card:hover .rel-img {
            transform: scale(1.04);
        }
        .rel-img {
            transition: transform 0.5s ease;
        }

        /* FAQ 手风琴 */
        .faq-item {
            border-bottom: 1px solid rgba(31, 58, 54, 0.10);
        }
        .faq-item:first-child {
            border-top: 1px solid rgba(31, 58, 54, 0.10);
        }
        .faq-question {
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 16px;
            font-weight: 500;
            color: var(--color-text-primary);
            transition: color 0.3s ease;
        }
        .faq-question:hover {
            color: var(--color-ink);
        }
        .faq-icon {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(31, 74, 66, 0.08);
            color: var(--color-ink);
            transition: transform 0.4s ease, background 0.3s ease;
            font-size: 16px;
            font-weight: 400;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--color-clay);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            font-size: 15px;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }
        .faq-answer-inner {
            padding-bottom: 20px;
        }

        /* 页脚 */
        .footer-link {
            color: var(--color-text-on-dark-sub);
            font-size: 14px;
            transition: color 0.3s ease;
            display: inline-block;
            padding: 4px 0;
        }
        .footer-link:hover {
            color: #fff;
        }

        /* 按钮动效 */
        .btn-primary {
            background: var(--color-ink);
            color: #fff;
            border-radius: 999px;
            padding: 14px 36px;
            font-size: 15px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.3s ease;
            border: 1px solid transparent;
        }
        .btn-primary:hover {
            background: var(--color-ink-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(31, 74, 66, 0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline-light {
            background: transparent;
            color: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 999px;
            padding: 14px 36px;
            font-size: 15px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.3s ease;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-2px);
        }
        .btn-clay {
            background: var(--color-clay);
            color: #fff;
            border-radius: 999px;
            padding: 14px 36px;
            font-size: 15px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.3s ease;
            border: 1px solid transparent;
        }
        .btn-clay:hover {
            background: var(--color-clay-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(201, 111, 69, 0.3);
        }
        .btn-clay:focus,
        .btn-primary:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(31, 74, 66, 0.18);
        }

        /* 移动端菜单 */
        @media (max-width: 768px) {
            .article-content {
                font-size: 17px;
                line-height: 1.9;
            }
            .article-content h2 {
                font-size: 24px;
            }
            .article-content h3 {
                font-size: 19px;
            }
        }