/* roulang page: index */
:root {
            --rosso: #C8102E;
            --carbon: #1A1A1A;
            --graphite: #242424;
            --bronze: #A67C4F;
            --warm: #F7F5F2;
            --linegray: #E8E4DE;
            --gtext: #5C5A57;
            --lgtext: #9A958E;
            --radius-xl: 12px;
            --radius-2xl: 16px;
            --shadow-card: 0 2px 20px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Noto Sans SC", "Source Han Sans SC", sans-serif;
            background-color: var(--warm);
            color: var(--carbon);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            background-image: radial-gradient(circle at 20% 30%, rgba(200, 16, 46, 0.02) 0%, transparent 60%);
        }
        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        .font-serif-custom {
            font-family: "Noto Serif SC", "Source Han Serif SC", serif;
            letter-spacing: 0.02em;
        }
        .font-num-custom {
            font-family: "Archivo", "Oswald", sans-serif;
            font-variant-numeric: tabular-nums;
        }
        .eng-label {
            font-family: "Archivo", "Oswald", sans-serif;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            font-size: 11px;
            font-weight: 600;
        }

        /* 滚动渐显 */
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }
        @media (prefers-reduced-motion: reduce) {
            .reveal {
                opacity: 1;
                transform: none;
                transition: none;
            }
            html {
                scroll-behavior: auto;
            }
        }

        /* 导航下划线动画 */
        .nav-link {
            position: relative;
            color: var(--carbon);
            font-size: 15px;
            font-weight: 500;
            transition: color 0.3s;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 0;
            height: 2px;
            background: var(--rosso);
            transition: width 0.3s ease;
        }
        .nav-link:hover {
            color: var(--rosso);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--rosso);
        }

        /* 倒计时条 */
        .countdown-bar {
            height: 44px;
            background: var(--carbon);
            color: #fff;
            transition: height 0.3s ease, opacity 0.3s ease;
            overflow: hidden;
        }
        .countdown-bar.closed {
            height: 0;
            opacity: 0;
        }
        .countdown-num {
            font-family: "Archivo", "Oswald", sans-serif;
            font-variant-numeric: tabular-nums;
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
            padding: 2px 8px;
            border-radius: 4px;
            margin: 0 2px;
            display: inline-block;
            min-width: 28px;
            text-align: center;
            font-size: 14px;
        }

        /* Hero */
        .hero-bg {
            background-image: linear-gradient(100deg, rgba(26, 26, 26, 0.88) 0%, rgba(26, 26, 26, 0.55) 45%, rgba(26, 26, 26, 0.15) 100%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 30%;
        }
        .hero-scroll {
            animation: floatY 2.4s ease-in-out infinite;
        }
        @keyframes floatY {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(8px);
            }
        }

        /* 卖点编号 */
        .why-number {
            font-family: "Archivo", "Oswald", sans-serif;
            font-size: 56px;
            font-weight: 700;
            line-height: 1;
            color: transparent;
            -webkit-text-stroke: 1.5px var(--rosso);
            transition: all 0.3s ease;
        }
        .why-card:hover .why-number {
            color: var(--rosso);
            -webkit-text-stroke: 1.5px transparent;
            transform: translateX(4px);
        }
        .why-title {
            transition: transform 0.3s ease;
        }
        .why-card:hover .why-title {
            transform: translateX(6px);
        }

        /* 图墙 */
        .gallery-item {
            position: relative;
            overflow: hidden;
            border-radius: 16px;
        }
        .gallery-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.8s ease, filter 0.8s ease;
            filter: blur(2px) scale(1.04);
        }
        .gallery-item.loaded img {
            filter: blur(0) scale(1);
        }
        .gallery-item:hover img {
            transform: scale(1.05);
        }
        .gallery-caption {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            padding: 32px 20px 16px;
            background: linear-gradient(transparent, rgba(26, 26, 26, 0.75));
            color: #fff;
            font-size: 13px;
            opacity: 0;
            transform: translateY(8px);
            transition: opacity 0.4s ease, transform 0.4s ease;
        }
        .gallery-item:hover .gallery-caption {
            opacity: 1;
            transform: translateY(0);
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--rosso);
            color: #fff;
            font-weight: 600;
            padding: 14px 32px;
            border-radius: 9999px;
            font-size: 15px;
            transition: background 0.3s, transform 0.2s, box-shadow 0.3s;
            box-shadow: 0 4px 16px rgba(200, 16, 46, 0.25);
        }
        .btn-primary:hover {
            background: #A00D24;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 16, 46, 0.35);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--carbon);
            border: 1px solid var(--carbon);
            font-weight: 600;
            padding: 14px 32px;
            border-radius: 9999px;
            font-size: 15px;
            transition: background 0.3s, color 0.3s, transform 0.2s;
        }
        .btn-secondary:hover {
            background: var(--carbon);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.6);
            font-weight: 600;
            padding: 14px 32px;
            border-radius: 9999px;
            font-size: 15px;
            transition: background 0.3s, color 0.3s, transform 0.2s;
        }
        .btn-ghost:hover {
            background: #fff;
            color: var(--carbon);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn-primary:focus,
        .btn-secondary:focus,
        .btn-ghost:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.4);
        }

        /* FAQ */
        .faq-item {
            border-bottom: 1px solid var(--linegray);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 0;
            cursor: pointer;
            transition: color 0.3s;
        }
        .faq-question:hover {
            color: var(--rosso);
        }
        .faq-question.open {
            color: var(--rosso);
        }
        .faq-icon {
            font-size: 22px;
            font-weight: 300;
            transition: transform 0.3s ease;
            color: var(--lgtext);
        }
        .faq-question.open .faq-icon {
            transform: rotate(45deg);
            color: var(--rosso);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px 0 28px;
            border-left: 3px solid var(--rosso);
            margin-left: 0;
        }
        .faq-answer.open {
            max-height: 400px;
            padding-bottom: 22px;
        }
        .faq-answer-inner {
            color: var(--gtext);
            font-size: 15px;
            line-height: 1.85;
            padding-left: 12px;
        }

        /* 资讯卡片 */
        .news-card {
            background: #fff;
            border: 1px solid var(--linegray);
            border-radius: 16px;
            overflow: hidden;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .news-card img {
            height: 180px;
            width: 100%;
            object-fit: cover;
        }
        .line-clamp-2 {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* 空态 */
        .empty-state {
            border: 2px dashed var(--linegray);
            border-radius: 16px;
            height: 220px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--lgtext);
            background: rgba(255, 255, 255, 0.4);
        }

        /* 深色CTA区 */
        .cta-dark {
            background: linear-gradient(135deg, var(--carbon) 0%, #101010 100%), radial-gradient(circle at 90% 10%, rgba(200, 16, 46, 0.15), transparent 50%);
            position: relative;
        }
        .cta-dark::before {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 80% 10%, rgba(200, 16, 46, 0.18), transparent 55%);
            pointer-events: none;
        }

        /* 页脚 */
        .footer-top-border {
            border-top: 3px solid;
            border-image: linear-gradient(90deg, var(--rosso) 0%, var(--rosso) 30%, var(--carbon) 70%, var(--bronze) 100%);
            border-image-slice: 1;
        }
        .footer-link {
            color: rgba(255, 255, 255, 0.65);
            transition: color 0.3s;
        }
        .footer-link:hover {
            color: #fff;
            text-decoration: underline;
            text-underline-offset: 4px;
            text-decoration-color: var(--rosso);
        }

        /* 移动端抽屉菜单 */
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: 0;
            width: 85%;
            max-width: 360px;
            height: 100vh;
            background: var(--warm);
            z-index: 1000;
            transform: translateX(100%);
            transition: transform 0.35s ease;
            box-shadow: -8px 0 30px rgba(0, 0, 0, 0.1);
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }

        /* 红色装饰线 */
        .rosso-line {
            width: 48px;
            height: 3px;
            background: var(--rosso);
            border-radius: 2px;
        }

        /* 导航滚动状态 */
        #siteHeader.scrolled {
            background: rgba(247, 245, 242, 0.92);
            backdrop-filter: blur(12px);
            box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
        }

        /* 徽章 */
        .badge-countdown {
            background: rgba(200, 16, 46, 0.08);
            border: 1px solid rgba(200, 16, 46, 0.2);
            color: var(--rosso);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 9999px;
            font-family: "Archivo", "Oswald", sans-serif;
            font-variant-numeric: tabular-nums;
        }

        /* 底部滚动条 */
        .divider-thin {
            height: 1px;
            background: var(--linegray);
        }

        /* 阴影过渡 */
        .card-shadow {
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }
        .card-shadow:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        /* 响应式 */
        @media (max-width: 640px) {
            .container-custom {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
            .why-number {
                font-size: 40px;
            }
        }

/* roulang page: category1 */
:root {
            --rosso: #C8102E;
            --carbon: #1A1A1A;
            --carbon-2: #242424;
            --bronze: #A67C4F;
            --warm: #F7F5F2;
            --line: #E8E4DE;
            --text-main: #1A1A1A;
            --text-secondary: #5C5A57;
            --text-light: #9A958E;
            --success: #2D7A4F;
            --warning: #B85C1F;
            --radius-lg: 16px;
            --radius-md: 12px;
            --shadow-sm: 0 2px 20px rgba(0,0,0,0.04);
            --shadow-hover: 0 8px 30px rgba(0,0,0,0.08);
            --font-serif: "Noto Serif SC", "Source Han Serif SC", serif;
            --font-sans: "Noto Sans SC", "Source Han Sans SC", sans-serif;
            --font-display: "Archivo", "Oswald", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--warm);
            color: var(--text-main);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            background-image: radial-gradient(rgba(26,26,26,0.02) 1px, transparent 1px);
            background-size: 24px 24px;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        .font-serif-custom {
            font-family: var(--font-serif);
        }

        .font-display-custom {
            font-family: var(--font-display);
        }

        .eng-label {
            font-family: var(--font-display);
            font-size: 0.7rem;
            letter-spacing: 0.3em;
            text-transform: uppercase;
            color: var(--rosso);
            font-weight: 600;
        }

        .eng-label-light {
            color: rgba(255,255,255,0.45);
        }

        /* 按钮体系 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background-color: var(--rosso);
            color: #fff;
            border-radius: 9999px;
            padding: 1rem 2rem;
            font-weight: 600;
            font-size: 0.95rem;
            line-height: 1.4;
            border: 1px solid transparent;
            transition: all 0.3s ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background-color: #A00D24;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200,16,46,0.25);
        }

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

        .btn-primary:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(200,16,46,0.4);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background-color: transparent;
            color: var(--carbon);
            border-radius: 9999px;
            padding: 0.9rem 2rem;
            font-weight: 600;
            font-size: 0.95rem;
            border: 1.5px solid var(--carbon);
            transition: all 0.3s ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background-color: var(--carbon);
            color: #fff;
            transform: translateY(-2px);
        }

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

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background-color: transparent;
            color: #fff;
            border-radius: 9999px;
            padding: 0.9rem 2rem;
            font-weight: 600;
            font-size: 0.95rem;
            border: 1.5px solid rgba(255,255,255,0.8);
            transition: all 0.3s ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-ghost:hover {
            background-color: #fff;
            color: var(--carbon);
            transform: translateY(-2px);
        }

        /* 导航链接 */
        .nav-link {
            position: relative;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.4rem 0;
            transition: color 0.3s;
            letter-spacing: 0.02em;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background-color: var(--rosso);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }

        .nav-link:hover {
            color: var(--carbon);
        }

        .nav-link:hover::after {
            transform: scaleX(0.4);
        }

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

        .nav-link.active::after {
            transform: scaleX(1);
        }

        .footer-link {
            color: rgba(255,255,255,0.55);
            transition: color 0.3s;
            position: relative;
        }

        .footer-link:hover {
            color: #fff;
        }

        .footer-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -3px;
            width: 100%;
            height: 1px;
            background-color: var(--rosso);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s;
        }

        .footer-link:hover::after {
            transform: scaleX(1);
        }

        .badge-countdown {
            font-family: var(--font-display);
            font-size: 0.75rem;
            font-weight: 500;
            letter-spacing: 0.08em;
            color: var(--carbon);
            background: rgba(247,245,242,0.8);
            border: 1px solid var(--line);
            border-radius: 9999px;
            padding: 0.35rem 0.9rem;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            box-shadow: 0 1px 4px rgba(0,0,0,0.02);
        }

        .badge-countdown::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--rosso);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(0.8);
            }
        }

        /* 卡片 */
        .card-base {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--line);
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

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

        /* 滚动渐显 */
        .reveal {
            opacity: 0;
            transform: translateY(32px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 图墙图片加载 */
        .img-reveal {
            opacity: 0;
            filter: blur(8px) scale(1.05);
            transition: opacity 0.8s ease, filter 0.8s ease;
        }

        .img-reveal.loaded {
            opacity: 1;
            filter: blur(0) scale(1);
        }

        /* 数字等宽 */
        .tabular-nums {
            font-variant-numeric: tabular-nums;
        }

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

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.5rem 0;
            transition: color 0.3s;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            color: var(--rosso);
        }

        .faq-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid var(--line);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 300;
            color: var(--text-secondary);
            flex-shrink: 0;
            transition: all 0.3s ease;
        }

        .faq-item[open] .faq-icon {
            transform: rotate(45deg);
            border-color: var(--rosso);
            color: var(--rosso);
        }

        .faq-answer {
            padding: 0 0 1.5rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.9;
            border-left: 2px solid var(--rosso);
            margin-left: 0.75rem;
            padding-left: 1.25rem;
        }

        /* 移动端菜单抽屉 */
        .mobile-menu {
            position: fixed;
            inset: 0;
            z-index: 100;
            background: var(--warm);
            display: flex;
            flex-direction: column;
            padding: 2rem 2rem 3rem;
            transform: translateX(100%);
            transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            overflow-y: auto;
        }

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

        .mobile-menu a {
            font-family: var(--font-serif);
            font-size: 1.5rem;
            padding: 0.9rem 0;
            border-bottom: 1px solid var(--line);
            color: var(--text-main);
            transition: color 0.3s, padding-left 0.3s;
        }

        .mobile-menu a:hover {
            color: var(--rosso);
            padding-left: 0.75rem;
        }

        .mobile-menu a.active {
            color: var(--rosso);
            font-weight: 600;
        }

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

            .reveal {
                opacity: 1;
                transform: none;
            }
        }

        /* 活动条目列表 */
        .event-entry {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
            padding: 1.6rem 0;
            border-bottom: 1px solid var(--line);
            transition: padding-left 0.3s ease;
        }

        .event-entry:last-child {
            border-bottom: none;
        }

        .event-entry:hover {
            padding-left: 0.5rem;
        }

        .event-num {
            font-family: var(--font-display);
            font-size: 0.75rem;
            letter-spacing: 0.15em;
            color: var(--rosso);
            font-weight: 600;
        }

        .event-title {
            font-family: var(--font-serif);
            font-size: 1.2rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-main);
        }

        .event-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* 数据条 */
        .stat-block {
            border-left: 2px solid var(--rosso);
            padding-left: 1rem;
        }

        .stat-number {
            font-family: var(--font-display);
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.2;
            color: var(--carbon);
        }

        .stat-label {
            font-size: 0.8rem;
            color: var(--text-secondary);
            letter-spacing: 0.05em;
        }

.container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        .text-secondary {
            color: var(--text-secondary);
        }

        .footer-top-border {
            border-top: 3px solid transparent;
            border-image: linear-gradient(90deg, #C8102E, #C8102E 30%, #1A1A1A 70%, #A67C4F) 1;
        }

/* roulang page: article */
:root {
  --rosso: #C8102E;
  --carbon: #1A1A1A;
  --bronze: #A67C4F;
  --warm: #F7F5F2;
  --ink: #1A1A1A;
  --muted: #5C5A57;
  --faint: #9A958E;
  --line: #E8E4DE;
  --success: #2D7A4F;
  --warning: #B85C1F;
  --radius-lg: 16px;
  --radius-md: 12px;
  --shadow-sm: 0 2px 20px rgba(0,0,0,0.04);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.08);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--warm);
  color: var(--ink);
  font-family: "Noto Sans SC", "Source Han Sans SC", sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button, input, textarea, select { font: inherit; }
.container-custom {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
@media (min-width: 768px) {
  .container-custom { padding-left: 2.5rem; padding-right: 2.5rem; }
}
.font-serif-custom { font-family: "Noto Serif SC", "Source Han Serif SC", serif; }
.eng-label {
  font-family: "Archivo", "Oswald", sans-serif;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: 12px;
}

/* 导航 */
#siteHeader {
  background: rgba(247,245,242,0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(232,228,222,0.7);
  transition: box-shadow .3s ease, background .3s ease;
}
#siteHeader.header-scrolled {
  background: rgba(247,245,242,0.96);
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}
.nav-link {
  position: relative;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  padding: 8px 2px;
  transition: color .2s;
  white-space: nowrap;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--rosso);
  transition: width .3s;
}
.nav-link:hover { color: var(--rosso); }
.nav-link:hover::after { width: 100%; }
.nav-link.active { color: var(--rosso); font-weight: 600; }
.nav-link.active::after { width: 100%; }

/* 按钮 */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--rosso);
  color: #fff;
  font-weight: 600;
  border-radius: 9999px;
  padding: 16px 32px;
  transition: all .3s;
  cursor: pointer;
}
.btn-primary:hover { background: #A00D24; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(200,16,46,.25); }
.btn-primary:active { transform: scale(.98); }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 9999px;
  padding: 15px 31px;
  font-weight: 600;
  transition: all .3s;
  cursor: pointer;
}
.btn-secondary:hover { background: var(--ink); color: #fff; }
.btn-secondary:active { transform: scale(.98); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,.8);
  border-radius: 9999px;
  padding: 15px 31px;
  font-weight: 600;
  transition: all .3s;
  cursor: pointer;
}
.btn-ghost:hover { background: #fff; color: var(--ink); }
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.btn-ghost:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--warm), 0 0 0 4px var(--rosso);
}

.badge-countdown {
  font-family: "Archivo", "Oswald", sans-serif;
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--carbon);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 9999px;
  padding: 6px 14px;
  letter-spacing: .02em;
  box-shadow: var(--shadow-sm);
}

/* 面包屑 */
.breadcrumb-wrap { background: #fff; border-bottom: 1px solid var(--line); }
.breadcrumb {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
  padding: 14px 0;
}
.breadcrumb a { color: var(--ink); transition: color .2s; }
.breadcrumb a:hover { color: var(--rosso); }
.breadcrumb .sep { color: var(--faint); }
.breadcrumb .current {
  color: var(--faint);
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 文章页 */
.tag-pill {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  color: var(--rosso);
  background: rgba(200,16,46,.06);
  border: 1px solid rgba(200,16,46,.12);
  border-radius: 9999px;
  padding: 4px 12px;
  font-weight: 500;
  letter-spacing: .02em;
}
.article-meta span { display: inline-flex; align-items: center; }
.article-body {
  font-family: "Noto Sans SC", sans-serif;
  font-size: 17px;
  line-height: 1.9;
  color: #2A2826;
}
.article-body p { margin-bottom: 1.5rem; }
.article-body h2 {
  font-family: "Noto Serif SC", serif;
  font-size: 24px;
  line-height: 1.4;
  margin: 40px 0 16px;
  padding-left: 14px;
  border-left: 3px solid var(--rosso);
}
.article-body h3 {
  font-family: "Noto Serif SC", serif;
  font-size: 20px;
  margin: 32px 0 12px;
}
.article-body blockquote {
  border-left: 4px solid var(--rosso);
  padding: 8px 0 8px 24px;
  font-style: italic;
  color: var(--muted);
  margin: 28px 0;
}
.article-body img {
  border-radius: 16px;
  border: 1px solid var(--line);
  margin: 32px 0;
  max-width: 100%;
  height: auto;
}
.article-body ul { list-style: disc; padding-left: 24px; margin-bottom: 1.5rem; }
.article-body ol { list-style: decimal; padding-left: 24px; margin-bottom: 1.5rem; }
.article-body li { margin-bottom: .5rem; }
.article-body a { color: var(--rosso); text-decoration: underline; text-underline-offset: 4px; }
.article-body a:hover { color: #A00D24; }
.article-body strong { font-weight: 700; color: var(--ink); }
.article-body table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 15px; }
.article-body th, .article-body td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; }
.article-body th { background: rgba(200,16,46,.04); font-weight: 600; }

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 9999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  transition: all .25s;
}
.share-btn:hover { border-color: var(--rosso); color: var(--rosso); transform: translateY(-2px); }
.share-btn:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--warm), 0 0 0 4px var(--rosso); }

/* 相关阅读卡片 */
.article-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all .3s;
}
.article-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.article-card .img-wrap {
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--line);
}
.article-card .img-wrap img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 8s ease;
}
.article-card:hover .img-wrap img { transform: scale(1.05); }

/* 缺失状态 */
.not-found-box {
  border: 2px dashed var(--line);
  border-radius: 16px;
  background: #fff;
  padding: 56px 32px;
  text-align: center;
}

/* 移动端菜单 */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--warm);
  padding: 28px 24px;
  transform: translateX(100%);
  transition: transform .4s ease;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu .close-btn {
  align-self: flex-end;
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink);
  cursor: pointer;
  margin-bottom: 12px;
}
.mobile-menu a {
  font-family: "Noto Serif SC", serif;
  font-size: 22px;
  font-weight: 700;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  transition: color .2s, padding-left .2s;
}
.mobile-menu a:hover { color: var(--rosso); padding-left: 8px; }
.mobile-menu a.active { color: var(--rosso); }

/* 页脚 */
.footer-top-border {
  border-top: 3px solid;
  border-image: linear-gradient(90deg, var(--rosso), var(--rosso) 30%, var(--carbon) 70%, var(--bronze)) 1;
}
.footer-link {
  position: relative;
  color: rgba(255,255,255,.6);
  transition: color .2s;
}
.footer-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: var(--rosso);
  transition: width .3s;
}
.footer-link:hover { color: #fff; }
.footer-link:hover::after { width: 100%; }

/* 滚动渐显 */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease-out, transform .6s ease-out;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1 !important; transform: none !important; }
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}

/* 响应式细节 */
@media (max-width: 1024px) {
  .article-card .img-wrap { aspect-ratio: 16/10; }
}
@media (max-width: 640px) {
  .breadcrumb .current:last-child { max-width: 180px; }
  .article-body { font-size: 16px; }
  .article-body h2 { font-size: 21px; }
  .not-found-box { padding: 40px 20px; }
}

/* roulang page: category2 */
:root {
            --rosso: #C8102E;
            --rosso-dark: #A00D24;
            --carbon: #1A1A1A;
            --charcoal-soft: #242424;
            --bronze: #A67C4F;
            --warm-white: #F7F5F2;
            --text-primary: #1A1A1A;
            --text-secondary: #5C5A57;
            --text-muted: #9A958E;
            --line-light: #E8E4DE;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "Noto Sans SC", "Source Han Sans SC", sans-serif;
            background-color: var(--warm-white);
            color: var(--text-primary);
            line-height: 1.7;
            letter-spacing: 0.01em;
            -webkit-font-smoothing: antialiased;
        }

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

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

        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding-left: 40px;
                padding-right: 40px;
            }
        }

        .font-serif-custom {
            font-family: "Noto Serif SC", "Source Han Serif SC", serif;
        }

        .font-archivo {
            font-family: "Archivo", "Oswald", sans-serif;
        }

        .eng-label {
            font-family: "Archivo", sans-serif;
            font-size: 12px;
            letter-spacing: 0.3em;
            text-transform: uppercase;
            font-weight: 600;
            color: var(--rosso);
        }

        .section-title {
            font-family: "Noto Serif SC", serif;
            font-size: 30px;
            line-height: 1.3;
            letter-spacing: 0.02em;
            color: var(--text-primary);
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 36px;
            }
        }

        .hero-title {
            font-family: "Noto Serif SC", serif;
            font-size: 34px;
            line-height: 1.2;
            letter-spacing: 0.02em;
        }

        @media (min-width: 768px) {
            .hero-title {
                font-size: 52px;
            }
        }

        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            padding: 6px 2px;
            transition: color 0.3s ease;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            right: 100%;
            bottom: -2px;
            height: 2px;
            border-radius: 2px;
            background: var(--rosso);
            transition: right 0.3s ease;
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--rosso);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            right: 0;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--rosso);
            color: #fff;
            border: none;
            border-radius: 9999px;
            padding: 14px 28px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 14px rgba(200, 16, 46, 0.22);
        }

        .btn-primary:hover {
            background: var(--rosso-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 22px rgba(200, 16, 46, 0.3);
        }

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

        .btn-primary:focus-visible,
        .btn-secondary:focus-visible,
        .btn-ghost:focus-visible {
            outline: 2px solid var(--rosso);
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--carbon);
            border: 1px solid var(--carbon);
            border-radius: 9999px;
            padding: 14px 28px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-secondary:hover {
            background: var(--carbon);
            color: #fff;
        }

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

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.55);
            border-radius: 9999px;
            padding: 14px 28px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-ghost:hover {
            background: #fff;
            color: var(--carbon);
        }

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

        .badge-countdown {
            font-family: "Archivo", sans-serif;
            font-size: 12px;
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.03em;
            background: var(--carbon);
            color: #fff;
            border-radius: 9999px;
            padding: 7px 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .footer-top-border {
            border-top: 3px solid;
            border-image: linear-gradient(90deg, #C8102E, #C8102E 30%, #1A1A1A 70%, #A67C4F) 1;
            border-top-style: solid;
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.5);
            transition: color 0.3s ease;
        }

        .footer-link:hover {
            color: #fff;
            text-decoration: underline;
            text-underline-offset: 4px;
            text-decoration-color: var(--rosso);
        }

        .kpi-card {
            background: #fff;
            border: 1px solid var(--line-light);
            border-radius: 16px;
            padding: 28px 24px;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .kpi-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--rosso);
            border-radius: 0 3px 3px 0;
        }

        .kpi-card:hover {
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            transform: translateY(-4px);
        }

        .kpi-number {
            font-family: "Archivo", sans-serif;
            font-size: 38px;
            font-weight: 700;
            line-height: 1.1;
            color: var(--carbon);
        }

        .kpi-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 6px;
        }

        .item-title {
            font-family: "Noto Serif SC", serif;
            font-size: 24px;
            line-height: 1.3;
            margin-top: 12px;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .item-desc {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 18px;
        }

        .arrow-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 14px;
            color: var(--rosso);
            transition: gap 0.3s ease;
        }

        .arrow-link:hover {
            gap: 12px;
        }

        .culture-card {
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--line-light);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.04);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

        .culture-card:hover {
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            transform: translateY(-4px);
        }

        .culture-card .img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

        .culture-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 8s ease;
        }

        .culture-card:hover img {
            transform: scale(1.05);
        }

        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 9999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.05em;
            background: rgba(200, 16, 46, 0.08);
            color: var(--rosso);
        }

        .quote-card {
            background: var(--charcoal-soft);
            border-radius: 16px;
            padding: 28px 26px;
            display: flex;
            flex-direction: column;
            gap: 18px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .quote-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }

        .quote-text {
            color: rgba(255, 255, 255, 0.82);
            font-size: 15px;
            line-height: 1.8;
        }

        .quote-author {
            color: rgba(255, 255, 255, 0.5);
            font-size: 13px;
            font-style: normal;
        }

        .cta-block {
            background: var(--carbon);
            border-radius: 24px;
            padding: 56px 32px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background: radial-gradient(circle at 80% 10%, rgba(200, 16, 46, 0.2), transparent 60%);
            pointer-events: none;
        }

        @media (min-width: 768px) {
            .cta-block {
                padding: 72px 64px;
            }
        }

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

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 24px 4px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            transition: color 0.3s ease;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary:hover {
            color: var(--rosso);
        }

        .faq-item summary .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 9999px;
            border: 1px solid var(--line-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--rosso);
            transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: var(--rosso);
            color: #fff;
            border-color: var(--rosso);
        }

        .faq-answer {
            padding: 0 4px 24px 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            border-left: 2px solid var(--rosso);
            margin-left: 8px;
        }

        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .reveal.revealed {
            opacity: 1;
            transform: translateY(0);
        }

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

            html {
                scroll-behavior: auto;
            }
        }

/* roulang page: category3 */
:root {
            --rosso: #C8102E;
            --rosso-dark: #A00D24;
            --carbon: #1A1A1A;
            --carbon-light: #242424;
            --bronze: #A67C4F;
            --warm-bg: #F7F5F2;
            --ink: #2A2826;
            --ink-mid: #5C5A57;
            --ink-fade: #9A958E;
            --line: #E8E4DE;
            --font-serif: 'Noto Serif SC', 'Source Han Serif SC', serif;
            --font-sans: 'Noto Sans SC', 'Source Han Sans SC', sans-serif;
            --font-num: 'Archivo', 'Oswald', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--warm-bg);
            color: var(--ink);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

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

        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        @media (min-width: 768px) {
            .container-custom {
                padding: 0 2.5rem;
            }
        }

        .font-serif-custom {
            font-family: var(--font-serif);
        }

        .font-sans-custom {
            font-family: var(--font-sans);
        }

        .font-number {
            font-family: var(--font-num);
        }

        .eng-label {
            display: inline-block;
            font-family: var(--font-num);
            font-size: 0.8rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--bronze);
            font-weight: 600;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--rosso);
            color: #fff;
            border: 1px solid transparent;
            border-radius: 9999px;
            padding: 1rem 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            background: var(--rosso-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-primary:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.3);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--carbon);
            border: 1px solid var(--carbon);
            border-radius: 9999px;
            padding: 1rem 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .btn-secondary:hover {
            background: var(--carbon);
            color: #fff;
        }
        .btn-secondary:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(26, 26, 26, 0.3);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: 9999px;
            padding: 1rem 2rem;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .btn-ghost:hover {
            background: #fff;
            color: var(--carbon);
        }
        .btn-ghost:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.25);
        }

        .nav-link {
            position: relative;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--ink);
            padding: 0.25rem 0;
            transition: color 0.3s ease;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 0;
            height: 2px;
            background: var(--rosso);
            transition: width 0.3s ease;
        }
        .nav-link:hover {
            color: var(--rosso);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--rosso);
            font-weight: 600;
        }
        .nav-link.active::after {
            width: 100%;
        }

        .badge-countdown {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-family: var(--font-num);
            font-size: 0.75rem;
            letter-spacing: 0.04em;
            color: var(--carbon);
            background: rgba(26, 26, 26, 0.04);
            border: 1px solid rgba(26, 26, 26, 0.08);
            padding: 0.35rem 0.8rem;
            border-radius: 9999px;
            font-variant-numeric: tabular-nums;
            white-space: nowrap;
        }

        .footer-top-border {
            border-top: 3px solid transparent;
            border-image: linear-gradient(90deg, #C8102E, #C8102E 30%, #1A1A1A 70%, #A67C4F) 1;
        }

        .footer-link {
            transition: color 0.3s ease;
            position: relative;
        }
        .footer-link:hover {
            color: #fff;
        }
        .footer-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 1px;
            background: var(--rosso);
            transition: width 0.3s ease;
        }
        .footer-link:hover::after {
            width: 100%;
        }

        /* ===== 折叠条目 / Fold Items ===== */
        .fold-item {
            position: relative;
            transition: background-color 0.35s ease;
        }
        .fold-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--rosso);
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .fold-item:hover::before {
            opacity: 1;
        }
        .fold-num {
            font-family: var(--font-num);
            font-size: 3.5rem;
            font-weight: 700;
            color: var(--line);
            line-height: 1;
            transition: color 0.3s ease;
        }
        .fold-item:hover .fold-num {
            color: var(--rosso);
        }
        .fold-arrow {
            color: var(--ink-fade);
            transition: all 0.3s ease;
        }
        .fold-item:hover .fold-arrow {
            color: var(--rosso);
            transform: translateX(8px);
            border-color: var(--rosso);
        }

        /* ===== 滚动渐显 ===== */
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        .reveal.revealed {
            opacity: 1;
            transform: translateY(0);
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }
            .reveal {
                opacity: 1;
                transform: none;
                transition: none;
            }
            .fold-item:hover .fold-arrow {
                transform: none;
            }
            .btn-primary,
            .btn-secondary,
            .btn-ghost,
            .fold-arrow {
                transition: none;
            }
        }