/* roulang page: index */
:root {
            --color-charcoal: #1A1A1A;
            --color-sport-orange: #E65C00;
            --color-sport-orange-dark: #CC5200;
            --color-soft-gray: #F5F5F5;
            --color-white: #FFFFFF;
            --color-text-weak: #6B6B6B;
            --color-border: #E0E0E0;
            --radius-card: 12px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 12px 30px rgba(0, 0, 0, 0.12);
            --transition-base: 0.3s ease;
            --nav-width: 280px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            line-height: 1.7;
            color: var(--color-charcoal);
            background-color: var(--color-white);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

        a {
            color: var(--color-sport-orange);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-sport-orange-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--color-sport-orange);
            outline-offset: 3px;
            border-radius: 2px;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }
        button:focus-visible {
            outline: 2px solid var(--color-sport-orange);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
        }

        /* 左侧固定导航 */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background-color: var(--color-white);
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 0;
            box-shadow: 0 0 30px rgba(0, 0, 0, 0.03);
            transition: transform var(--transition-base);
        }

        .side-nav-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 28px 24px 24px;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-charcoal);
            letter-spacing: -0.02em;
            margin-bottom: 8px;
            flex-shrink: 0;
        }
        .nav-logo span {
            color: var(--color-sport-orange);
        }
        .nav-logo a {
            color: inherit;
            text-decoration: none;
        }
        .nav-logo a:hover {
            color: var(--color-sport-orange);
        }

        .nav-tagline {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            margin-bottom: 40px;
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .nav-channels {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex-grow: 1;
            justify-content: flex-end;
            padding-bottom: 20px;
        }

        .nav-channels a {
            display: block;
            padding: 10px 16px;
            border-radius: 8px;
            color: var(--color-charcoal);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            text-decoration: none;
            letter-spacing: 0.01em;
            position: relative;
        }
        .nav-channels a:hover {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            padding-left: 20px;
        }
        .nav-channels a.active {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            font-weight: 600;
            padding-left: 20px;
        }
        .nav-channels a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background-color: var(--color-sport-orange);
            border-radius: 0 3px 3px 0;
        }

        /* 右侧主内容区 */
        .main-content {
            margin-left: var(--nav-width);
            min-height: 100vh;
        }

        /* 移动端顶部导航 */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background-color: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            z-index: 1001;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }
        .mobile-nav-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-charcoal);
            flex-grow: 1;
        }
        .mobile-nav-logo span {
            color: var(--color-sport-orange);
        }
        .hamburger-btn {
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-charcoal);
            padding: 8px;
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            transition: background var(--transition-base);
        }
        .hamburger-btn:hover {
            background: #F5F5F5;
        }

        /* 移动端抽屉菜单 */
        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background-color: var(--color-white);
            z-index: 1002;
            transform: translateX(-100%);
            transition: transform var(--transition-base);
            padding: 24px;
            display: flex;
            flex-direction: column;
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .mobile-drawer-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: background var(--transition-base);
            color: var(--color-charcoal);
        }
        .mobile-drawer-close:hover {
            background: #F5F5F5;
        }
        .mobile-drawer-channels {
            display: flex;
            flex-direction: column;
            gap: 4px;
            margin-top: 20px;
        }
        .mobile-drawer-channels a {
            display: block;
            padding: 14px 18px;
            border-radius: 10px;
            color: var(--color-charcoal);
            font-weight: 500;
            font-size: 1.05rem;
            text-decoration: none;
            transition: all var(--transition-base);
        }
        .mobile-drawer-channels a:hover,
        .mobile-drawer-channels a.active {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
        }

        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            z-index: 1001;
            display: none;
        }
        .drawer-overlay.show {
            display: block;
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--color-sport-orange);
            color: #fff;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            border: none;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background-color: var(--color-sport-orange-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(230, 92, 0, 0.3);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: var(--color-charcoal);
            font-weight: 600;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--color-charcoal);
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .btn-outline:hover {
            border-color: var(--color-sport-orange);
            color: var(--color-sport-orange);
            background-color: #FFF5EF;
        }
        .btn-outline:active {
            transform: scale(0.98);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.875rem;
        }

        /* 卡片 */
        .card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
        }

        /* 进度环 */
        .progress-ring {
            transform: rotate(-90deg);
        }
        .progress-ring-circle-bg {
            fill: none;
            stroke: #E8E8E8;
            stroke-width: 8;
        }
        .progress-ring-circle-fg {
            fill: none;
            stroke: var(--color-sport-orange);
            stroke-width: 8;
            stroke-linecap: round;
            transition: stroke-dashoffset 0.8s ease;
        }

        /* 日期竖线列表 */
        .date-list-item {
            display: flex;
            gap: 20px;
            padding: 16px 0;
            border-bottom: 1px solid #F0F0F0;
            transition: all var(--transition-base);
        }
        .date-list-item:hover .date-line {
            width: 4px;
            background-color: var(--color-sport-orange);
        }
        .date-list-item:hover .date-list-title {
            color: var(--color-sport-orange);
        }
        .date-line-col {
            display: flex;
            flex-direction: column;
            align-items: center;
            min-width: 50px;
        }
        .date-line {
            width: 2px;
            flex-grow: 1;
            background-color: #D0D0D0;
            transition: all var(--transition-base);
            border-radius: 1px;
        }
        .date-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: var(--color-sport-orange);
            flex-shrink: 0;
            margin-top: 4px;
        }
        .date-list-content {
            flex-grow: 1;
        }
        .date-list-date {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            margin-bottom: 4px;
        }
        .date-list-title {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--color-charcoal);
            transition: color var(--transition-base);
            margin-bottom: 6px;
        }
        .date-list-summary {
            font-size: 0.9rem;
            color: #555;
            line-height: 1.6;
        }

        /* FAQ */
        .faq-item {
            border-bottom: 1px solid #ECECEC;
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-charcoal);
            text-align: left;
            transition: color var(--transition-base);
        }
        .faq-question:hover {
            color: var(--color-sport-orange);
        }
        .faq-icon {
            font-size: 1.4rem;
            font-weight: 300;
            transition: transform var(--transition-base);
            color: var(--color-sport-orange);
            flex-shrink: 0;
            margin-left: 16px;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            font-size: 0.95rem;
            color: #555;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding-bottom: 18px;
        }

        /* 淡入动画 */
        .fade-in-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 标签云 */
        .tag-cloud a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: 20px;
            background: #F8F8F8;
            color: #444;
            font-size: 0.9rem;
            margin: 4px 6px;
            transition: all var(--transition-base);
            text-decoration: none;
            border: 1px solid transparent;
        }
        .tag-cloud a:hover {
            background: #FFF5EF;
            color: var(--color-sport-orange);
            border-color: var(--color-sport-orange);
        }

        /* 表单输入 */
        .input-underline {
            border: none;
            border-bottom: 2px solid #CCCCCC;
            padding: 12px 4px;
            font-size: 1rem;
            background: transparent;
            width: 100%;
            transition: border-color var(--transition-base);
            outline: none;
            border-radius: 0;
        }
        .input-underline:focus {
            border-bottom-color: var(--color-sport-orange);
        }

        /* section */
        .section-pad {
            padding: 5rem 0;
        }
        .section-pad-sm {
            padding: 3.5rem 0;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .side-nav {
                display: none;
            }
            .main-content {
                margin-left: 0;
                padding-top: 56px;
            }
            .mobile-nav {
                display: flex;
            }
            .section-pad {
                padding: 3rem 0;
            }
            .section-pad-sm {
                padding: 2rem 0;
            }
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: 2.2rem 0;
            }
            .section-pad-sm {
                padding: 1.6rem 0;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
        }
        @media (max-width: 520px) {
            .btn-primary,
            .btn-outline {
                padding: 10px 18px;
                font-size: 0.85rem;
                width: 100%;
                justify-content: center;
            }
            .hero-cta-group {
                flex-direction: column;
                gap: 10px;
                width: 100%;
            }
        }

/* roulang page: category3 */
:root {
            --color-charcoal: #1A1A1A;
            --color-sport-orange: #E65C00;
            --color-sport-orange-dark: #CC5200;
            --color-soft-gray: #F5F5F5;
            --color-white: #FFFFFF;
            --color-text-weak: #6B6B6B;
            --color-border: #E0E0E0;
            --radius-card: 12px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 12px 30px rgba(0, 0, 0, 0.12);
            --transition-base: 0.3s ease;
            --nav-width: 280px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            line-height: 1.7;
            color: var(--color-charcoal);
            background-color: var(--color-white);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

        a {
            color: var(--color-sport-orange);
            text-decoration: none;
            transition: color var(--transition-base);
        }

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

        a:focus-visible {
            outline: 2px solid var(--color-sport-orange);
            outline-offset: 3px;
            border-radius: 2px;
        }

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

        button:focus-visible {
            outline: 2px solid var(--color-sport-orange);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
        }

        /* 左侧固定导航 */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background-color: var(--color-white);
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 0;
            box-shadow: 0 0 30px rgba(0, 0, 0, 0.03);
            transition: transform var(--transition-base);
        }

        .side-nav-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 28px 24px 24px;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-charcoal);
            letter-spacing: -0.02em;
            margin-bottom: 8px;
            flex-shrink: 0;
        }

        .nav-logo span {
            color: var(--color-sport-orange);
        }

        .nav-logo a {
            color: inherit;
            text-decoration: none;
        }

        .nav-logo a:hover {
            color: var(--color-sport-orange);
        }

        .nav-tagline {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            margin-bottom: 40px;
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .nav-channels {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex-grow: 1;
            justify-content: flex-end;
            padding-bottom: 20px;
        }

        .nav-channels a {
            display: block;
            padding: 10px 16px;
            border-radius: 8px;
            color: var(--color-charcoal);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            text-decoration: none;
            letter-spacing: 0.01em;
            position: relative;
        }

        .nav-channels a:hover {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            padding-left: 20px;
        }

        .nav-channels a.active {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            font-weight: 600;
            padding-left: 20px;
        }

        .nav-channels a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background-color: var(--color-sport-orange);
            border-radius: 0 3px 3px 0;
        }

        /* 右侧主内容区 */
        .main-content {
            margin-left: var(--nav-width);
            min-height: 100vh;
        }

        /* 移动端顶部导航 */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background-color: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            z-index: 1001;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }

        .mobile-nav-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-charcoal);
            flex-grow: 1;
        }

        .mobile-nav-logo span {
            color: var(--color-sport-orange);
        }

        .hamburger-btn {
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-charcoal);
            padding: 8px;
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            transition: background var(--transition-base);
        }

        .hamburger-btn:hover {
            background: #F5F5F5;
        }

        /* 移动端抽屉菜单 */
        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background-color: var(--color-white);
            z-index: 1002;
            transform: translateX(-100%);
            transition: transform var(--transition-base);
            padding: 24px;
            display: flex;
            flex-direction: column;
        }

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

        .mobile-drawer-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: #F5F5F5;
            margin-bottom: 20px;
        }

        .mobile-drawer .nav-channels {
            gap: 4px;
            padding-bottom: 0;
        }

        /* 卡片基础样式 */
        .card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }

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

        /* 按钮样式 */
        .btn-primary {
            display: inline-block;
            background-color: var(--color-sport-orange);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 1rem;
            transition: background-color var(--transition-base), transform var(--transition-base);
            text-align: center;
            cursor: pointer;
        }

        .btn-primary:hover {
            background-color: var(--color-sport-orange-dark);
            color: #fff;
            transform: translateY(-1px);
        }

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

        .btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--color-charcoal);
            border: 2px solid var(--color-border);
            border-radius: var(--radius-btn);
            padding: 10px 26px;
            font-weight: 600;
            font-size: 1rem;
            transition: border-color var(--transition-base), color var(--transition-base);
            text-align: center;
            cursor: pointer;
        }

        .btn-outline:hover {
            border-color: var(--color-sport-orange);
            color: var(--color-sport-orange);
        }

        /* 进度条 */
        .progress-bar {
            height: 8px;
            background: #E5E7EB;
            border-radius: 10px;
            overflow: hidden;
            margin: 16px 0;
        }

        .progress-fill {
            height: 100%;
            width: 0%;
            background: var(--color-sport-orange);
            border-radius: 10px;
            transition: width 0.6s ease;
        }

        /* 淡入动画 */
        .fade-in-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* FAQ折叠面板 */
        .faq-item {
            border-bottom: 1px solid var(--color-border);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 18px 0;
            font-weight: 600;
            font-size: 1.05rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            color: var(--color-charcoal);
            transition: color var(--transition-base);
        }

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

        .faq-icon {
            font-size: 1.3rem;
            font-weight: 400;
            transition: transform var(--transition-base);
            width: 24px;
            text-align: center;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            color: var(--color-text-weak);
            line-height: 1.8;
            padding: 0 0;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 18px;
        }

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

        /* 响应式 */
        @media (max-width: 1024px) {
            .side-nav {
                transform: translateX(-100%);
            }
            .side-nav.open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-nav {
                display: flex;
            }
            .main-content {
                padding-top: 56px;
            }
        }

        @media (min-width: 1025px) {
            .mobile-nav,
            .mobile-drawer {
                display: none !important;
            }
        }

/* roulang page: category2 */
:root {
            --color-charcoal: #1A1A1A;
            --color-sport-orange: #E65C00;
            --color-sport-orange-dark: #CC5200;
            --color-soft-gray: #F5F5F5;
            --color-white: #FFFFFF;
            --color-text-weak: #6B6B6B;
            --color-border: #E0E0E0;
            --radius-card: 12px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 12px 30px rgba(0, 0, 0, 0.12);
            --transition-base: 0.3s ease;
            --nav-width: 280px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            line-height: 1.7;
            color: var(--color-charcoal);
            background-color: var(--color-white);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

        a {
            color: var(--color-sport-orange);
            text-decoration: none;
            transition: color var(--transition-base);
        }

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

        a:focus-visible {
            outline: 2px solid var(--color-sport-orange);
            outline-offset: 3px;
            border-radius: 2px;
        }

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

        button:focus-visible {
            outline: 2px solid var(--color-sport-orange);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
        }

        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background-color: var(--color-white);
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 0;
            box-shadow: 0 0 30px rgba(0, 0, 0, 0.03);
            transition: transform var(--transition-base);
        }

        .side-nav-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 28px 24px 24px;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-charcoal);
            letter-spacing: -0.02em;
            margin-bottom: 8px;
            flex-shrink: 0;
        }

        .nav-logo span {
            color: var(--color-sport-orange);
        }

        .nav-logo a {
            color: inherit;
            text-decoration: none;
        }

        .nav-logo a:hover {
            color: var(--color-sport-orange);
        }

        .nav-tagline {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            margin-bottom: 40px;
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .nav-channels {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex-grow: 1;
            justify-content: flex-end;
            padding-bottom: 20px;
        }

        .nav-channels a {
            display: block;
            padding: 10px 16px;
            border-radius: 8px;
            color: var(--color-charcoal);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            text-decoration: none;
            letter-spacing: 0.01em;
            position: relative;
        }

        .nav-channels a:hover {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            padding-left: 20px;
        }

        .nav-channels a.active {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            font-weight: 600;
            padding-left: 20px;
        }

        .nav-channels a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background-color: var(--color-sport-orange);
            border-radius: 0 3px 3px 0;
        }

        .main-content {
            margin-left: var(--nav-width);
            min-height: 100vh;
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background-color: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            z-index: 1001;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }

        .mobile-nav-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-charcoal);
            flex-grow: 1;
        }

        .mobile-nav-logo span {
            color: var(--color-sport-orange);
        }

        .hamburger-btn {
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-charcoal);
            padding: 8px;
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            transition: background var(--transition-base);
        }

        .hamburger-btn:hover {
            background: #F5F5F5;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background-color: var(--color-white);
            z-index: 1002;
            transform: translateX(-100%);
            transition: transform var(--transition-base);
            padding: 24px;
            display: flex;
            flex-direction: column;
        }

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

        .mobile-drawer-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            transition: background var(--transition-base);
            color: var(--color-charcoal);
        }

        .mobile-drawer-close:hover {
            background: #F5F5F5;
        }

        .mobile-drawer .mobile-channels {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-top: 24px;
        }

        .mobile-drawer .mobile-channels a {
            display: block;
            padding: 14px 18px;
            border-radius: 8px;
            color: var(--color-charcoal);
            font-weight: 500;
            font-size: 1rem;
            transition: all var(--transition-base);
            text-decoration: none;
        }

        .mobile-drawer .mobile-channels a:hover {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
        }

        .mobile-drawer .mobile-channels a.active {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            font-weight: 600;
        }

        .btn-primary {
            display: inline-block;
            background-color: var(--color-sport-orange);
            color: #FFFFFF;
            font-weight: 600;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            font-size: 1rem;
            letter-spacing: 0.02em;
            text-align: center;
        }

        .btn-primary:hover {
            background-color: var(--color-sport-orange-dark);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(230, 92, 0, 0.3);
        }

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

        .btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--color-charcoal);
            font-weight: 600;
            padding: 13px 30px;
            border-radius: var(--radius-btn);
            border: 2px solid var(--color-charcoal);
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            font-size: 1rem;
            letter-spacing: 0.02em;
            text-align: center;
        }

        .btn-outline:hover {
            border-color: var(--color-sport-orange);
            color: var(--color-sport-orange);
        }

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

        .card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            overflow: hidden;
        }

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

        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }

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

        .card-tag {
            display: inline-block;
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            font-size: 0.78rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 4px;
            letter-spacing: 0.03em;
            margin-bottom: 10px;
        }

        .card-date {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            letter-spacing: 0.02em;
        }

        .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-charcoal);
            margin: 8px 0;
            line-height: 1.4;
            transition: color var(--transition-base);
        }

        .card:hover .card-title {
            color: var(--color-sport-orange);
        }

        .card-desc {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.6;
            margin-bottom: 14px;
        }

        .card-link {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-sport-orange);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-base);
        }

        .card-link:hover {
            gap: 10px;
            color: var(--color-sport-orange-dark);
        }

        .card-link::after {
            content: '→';
            font-size: 1.1rem;
            transition: transform var(--transition-base);
        }

        .card-link:hover::after {
            transform: translateX(3px);
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border);
            padding: 0;
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 18px 0;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-charcoal);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            letter-spacing: 0.01em;
            transition: color var(--transition-base);
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--color-sport-orange);
            transition: transform var(--transition-base);
            border-radius: 50%;
            background: #FFF5EF;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0;
        }

        .faq-answer-inner {
            padding: 0 0 20px 0;
            font-size: 0.95rem;
            color: var(--color-text-weak);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 0 8px 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--color-sport-orange);
            color: #FFFFFF;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--color-sport-orange);
            margin-bottom: 12px;
            padding: 5px 14px;
            background: #FFF5EF;
            border-radius: 20px;
        }

        .section-title {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-charcoal);
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--color-text-weak);
            line-height: 1.7;
            max-width: 640px;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 26, 0.82) 0%, rgba(26, 26, 26, 0.45) 50%, rgba(26, 26, 26, 0.7) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

        .step-number {
            width: 48px;
            height: 48px;
            background: var(--color-sport-orange);
            color: #FFFFFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.3rem;
            flex-shrink: 0;
        }

        .fade-in-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }

        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (max-width: 1024px) {
            .side-nav {
                display: none;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-nav {
                display: flex;
            }
            .main-content {
                padding-top: 56px;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .hero-section {
                min-height: 60vh;
            }
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 1.55rem;
            }
            .card-body {
                padding: 16px 18px 20px;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 24px;
                font-size: 0.9rem;
                width: 100%;
                text-align: center;
            }
            .step-number {
                width: 38px;
                height: 38px;
                font-size: 1.1rem;
            }
        }

        @media (max-width: 520px) {
            .section-title {
                font-size: 1.35rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
            .card-title {
                font-size: 1.05rem;
            }
            .faq-question {
                font-size: 0.95rem;
                padding: 14px 0;
            }
        }

/* roulang page: category1 */
:root {
            --color-charcoal: #1A1A1A;
            --color-sport-orange: #E65C00;
            --color-sport-orange-dark: #CC5200;
            --color-soft-gray: #F5F5F5;
            --color-white: #FFFFFF;
            --color-text-weak: #6B6B6B;
            --color-border: #E0E0E0;
            --radius-card: 12px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 12px 30px rgba(0, 0, 0, 0.12);
            --transition-base: 0.3s ease;
            --nav-width: 280px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            line-height: 1.7;
            color: var(--color-charcoal);
            background-color: var(--color-white);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

        a {
            color: var(--color-sport-orange);
            text-decoration: none;
            transition: color var(--transition-base);
        }

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

        a:focus-visible {
            outline: 2px solid var(--color-sport-orange);
            outline-offset: 3px;
            border-radius: 2px;
        }

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

        button:focus-visible {
            outline: 2px solid var(--color-sport-orange);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
        }

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

        /* 左侧固定导航 */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background-color: var(--color-white);
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 0;
            box-shadow: 0 0 30px rgba(0, 0, 0, 0.03);
            transition: transform var(--transition-base);
        }

        .side-nav-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 28px 24px 24px;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-charcoal);
            letter-spacing: -0.02em;
            margin-bottom: 8px;
            flex-shrink: 0;
        }

        .nav-logo span {
            color: var(--color-sport-orange);
        }

        .nav-logo a {
            color: inherit;
            text-decoration: none;
        }

        .nav-logo a:hover {
            color: var(--color-sport-orange);
        }

        .nav-tagline {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            margin-bottom: 40px;
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .nav-channels {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex-grow: 1;
            justify-content: flex-end;
            padding-bottom: 20px;
        }

        .nav-channels a {
            display: block;
            padding: 10px 16px;
            border-radius: 8px;
            color: var(--color-charcoal);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            text-decoration: none;
            letter-spacing: 0.01em;
            position: relative;
        }

        .nav-channels a:hover {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            padding-left: 20px;
        }

        .nav-channels a.active {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            font-weight: 600;
            padding-left: 20px;
        }

        .nav-channels a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background-color: var(--color-sport-orange);
            border-radius: 0 3px 3px 0;
        }

        /* 右侧主内容区 */
        .main-content {
            margin-left: var(--nav-width);
            min-height: 100vh;
        }

        /* 移动端顶部导航 */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background-color: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            z-index: 1001;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }

        .mobile-nav-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-charcoal);
            flex-grow: 1;
        }

        .mobile-nav-logo span {
            color: var(--color-sport-orange);
        }

        .mobile-nav-logo a {
            color: inherit;
            text-decoration: none;
        }

        .hamburger-btn {
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-charcoal);
            padding: 8px;
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            transition: background var(--transition-base);
        }

        .hamburger-btn:hover {
            background: #F5F5F5;
        }

        /* 移动端抽屉菜单 */
        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background-color: var(--color-white);
            z-index: 1002;
            transform: translateX(-100%);
            transition: transform var(--transition-base);
            padding: 24px;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
        }

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

        .mobile-drawer-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            color: var(--color-charcoal);
            transition: background var(--transition-base);
        }

        .mobile-drawer-close:hover {
            background: #F5F5F5;
        }

        .mobile-drawer .nav-channels {
            flex-grow: 0;
            justify-content: flex-start;
            padding-top: 20px;
            gap: 4px;
        }

        .mobile-drawer .nav-channels a {
            font-size: 1.05rem;
            padding: 12px 16px;
        }

        .mobile-drawer .nav-logo {
            margin-bottom: 4px;
        }

        /* 卡片样式 */
        .card-elevated {
            background: var(--color-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            overflow: hidden;
        }

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

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

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

        /* 按钮样式 */
        .btn-primary {
            display: inline-block;
            background-color: var(--color-sport-orange);
            color: #fff;
            border: none;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-base);
            text-align: center;
            letter-spacing: 0.02em;
            text-decoration: none;
            line-height: 1.4;
        }

        .btn-primary:hover {
            background-color: var(--color-sport-orange-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(230, 92, 0, 0.3);
        }

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

        .btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--color-charcoal);
            border: 2px solid var(--color-charcoal);
            padding: 12px 30px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-base);
            text-align: center;
            letter-spacing: 0.02em;
            text-decoration: none;
            line-height: 1.4;
        }

        .btn-outline:hover {
            border-color: var(--color-sport-orange);
            color: var(--color-sport-orange);
            background-color: #FFF5EF;
        }

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

        /* 标签 */
        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
        }

        .tag-hot {
            background-color: #FFF0E8;
            color: #D45400;
            font-weight: 600;
        }

        /* 倒计时条 */
        .countdown-bar {
            background: linear-gradient(135deg, #1A1A1A 0%, #2D1A0A 50%, #3D1F00 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .countdown-bar::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(230, 92, 0, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .countdown-digit {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            border-radius: 8px;
            padding: 8px 14px;
            font-size: 1.6rem;
            font-weight: 700;
            min-width: 48px;
            text-align: center;
            letter-spacing: 0.04em;
            font-variant-numeric: tabular-nums;
            font-family: 'SF Mono', 'Consolas', 'Monaco', monospace;
            color: #FFB380;
        }

        .countdown-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: #B0B0B0;
            display: block;
            margin-top: 2px;
        }

        /* 赛事列表 */
        .event-list-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .event-list-item:hover {
            padding-left: 8px;
            border-bottom-color: var(--color-sport-orange);
        }

        .event-list-item .event-date {
            flex-shrink: 0;
            width: 70px;
            text-align: center;
            position: relative;
        }

        .event-list-item .event-date::after {
            content: '';
            position: absolute;
            right: 0;
            top: 0;
            bottom: 0;
            width: 2px;
            background-color: var(--color-sport-orange);
            border-radius: 1px;
            transition: width var(--transition-base);
        }

        .event-list-item:hover .event-date::after {
            width: 4px;
        }

        .event-list-item .event-date-day {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-sport-orange);
            line-height: 1;
            display: block;
        }

        .event-list-item .event-date-month {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            letter-spacing: 0.04em;
        }

        /* FAQ */
        .faq-panel {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
            background: var(--color-white);
        }

        .faq-panel.open {
            border-color: var(--color-sport-orange);
            box-shadow: 0 4px 16px rgba(230, 92, 0, 0.08);
        }

        .faq-trigger {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-charcoal);
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            text-align: left;
            gap: 12px;
            transition: color var(--transition-base);
        }

        .faq-trigger:hover {
            color: var(--color-sport-orange);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #F5F5F5;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            transition: all var(--transition-base);
            color: var(--color-charcoal);
        }

        .faq-panel.open .faq-icon {
            background: var(--color-sport-orange);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
        }

        .faq-panel.open .faq-body {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        .faq-body p {
            color: var(--color-text-weak);
            line-height: 1.8;
            margin: 0;
        }

        /* 滚动渐现 */
        .fade-in-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }

        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 响应式 */
        @media (max-width: 1023px) {
            .side-nav {
                display: none;
            }
            .mobile-nav {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 56px;
            }
            .countdown-digit {
                font-size: 1.2rem;
                padding: 6px 10px;
                min-width: 36px;
            }
            .event-list-item {
                flex-direction: column;
                gap: 8px;
            }
            .event-list-item .event-date {
                width: auto;
                text-align: left;
                display: flex;
                align-items: center;
                gap: 8px;
            }
            .event-list-item .event-date::after {
                display: none;
            }
            .event-list-item .event-date-day {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 640px) {
            .countdown-digit {
                font-size: 1rem;
                padding: 5px 8px;
                min-width: 30px;
                border-radius: 6px;
            }
            .countdown-label {
                font-size: 0.6rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 22px;
                font-size: 0.9rem;
                width: 100%;
                text-align: center;
            }
            .faq-trigger {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-body {
                padding: 0 16px;
            }
            .faq-panel.open .faq-body {
                padding: 0 16px 16px;
            }
        }

/* roulang page: category4 */
:root {
            --color-charcoal: #1A1A1A;
            --color-sport-orange: #E65C00;
            --color-sport-orange-dark: #CC5200;
            --color-soft-gray: #F5F5F5;
            --color-white: #FFFFFF;
            --color-text-weak: #6B6B6B;
            --color-border: #E0E0E0;
            --radius-card: 12px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 12px 30px rgba(0, 0, 0, 0.12);
            --transition-base: 0.3s ease;
            --nav-width: 280px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            line-height: 1.7;
            color: var(--color-charcoal);
            background-color: var(--color-white);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

        a {
            color: var(--color-sport-orange);
            text-decoration: none;
            transition: color var(--transition-base);
        }

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

        a:focus-visible {
            outline: 2px solid var(--color-sport-orange);
            outline-offset: 3px;
            border-radius: 2px;
        }

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

        button:focus-visible {
            outline: 2px solid var(--color-sport-orange);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
        }

        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background-color: var(--color-white);
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 0;
            box-shadow: 0 0 30px rgba(0, 0, 0, 0.03);
            transition: transform var(--transition-base);
        }

        .side-nav-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 28px 24px 24px;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-charcoal);
            letter-spacing: -0.02em;
            margin-bottom: 8px;
            flex-shrink: 0;
        }

        .nav-logo span {
            color: var(--color-sport-orange);
        }

        .nav-logo a {
            color: inherit;
            text-decoration: none;
        }

        .nav-logo a:hover {
            color: var(--color-sport-orange);
        }

        .nav-tagline {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            margin-bottom: 40px;
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .nav-channels {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex-grow: 1;
            justify-content: flex-end;
            padding-bottom: 20px;
        }

        .nav-channels a {
            display: block;
            padding: 10px 16px;
            border-radius: 8px;
            color: var(--color-charcoal);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            text-decoration: none;
            letter-spacing: 0.01em;
            position: relative;
        }

        .nav-channels a:hover {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            padding-left: 20px;
        }

        .nav-channels a.active {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            font-weight: 600;
            padding-left: 20px;
        }

        .nav-channels a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background-color: var(--color-sport-orange);
            border-radius: 0 3px 3px 0;
        }

        .main-content {
            margin-left: var(--nav-width);
            min-height: 100vh;
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background-color: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            z-index: 1001;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }

        .mobile-nav-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-charcoal);
            flex-grow: 1;
        }

        .mobile-nav-logo span {
            color: var(--color-sport-orange);
        }

        .hamburger-btn {
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-charcoal);
            padding: 8px;
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            transition: background var(--transition-base);
        }

        .hamburger-btn:hover {
            background: #F5F5F5;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background-color: var(--color-white);
            z-index: 1002;
            transform: translateX(-100%);
            transition: transform var(--transition-base);
            padding: 24px;
            display: flex;
            flex-direction: column;
        }

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

        .mobile-drawer-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            color: var(--color-charcoal);
            transition: background var(--transition-base);
        }

        .mobile-drawer-close:hover {
            background: #F5F5F5;
        }

        .mobile-drawer .nav-channels {
            justify-content: flex-start;
            padding-top: 20px;
            flex-grow: 0;
        }

        .mobile-drawer .nav-channels a {
            font-size: 1.1rem;
            padding: 14px 16px;
        }

        .btn-primary {
            display: inline-block;
            background-color: var(--color-sport-orange);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            text-align: center;
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background-color: var(--color-sport-orange-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(230, 92, 0, 0.3);
        }

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

        .btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--color-charcoal);
            padding: 11px 26px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid var(--color-charcoal);
            cursor: pointer;
            transition: all var(--transition-base);
            text-align: center;
            letter-spacing: 0.02em;
        }

        .btn-outline:hover {
            border-color: var(--color-sport-orange);
            color: var(--color-sport-orange);
        }

        .card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            overflow: hidden;
        }

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

        .fade-in-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .section-padding {
            padding: 5rem 0;
        }

        .max-w-container {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
        }

        .bg-charcoal {
            background-color: var(--color-charcoal);
        }

        .text-sport-orange {
            color: var(--color-sport-orange);
        }

        .bg-sport-orange {
            background-color: var(--color-sport-orange);
        }

        .bg-soft-gray {
            background-color: var(--color-soft-gray);
        }

        .countdown-ring {
            position: relative;
            width: 100px;
            height: 100px;
            flex-shrink: 0;
        }

        .countdown-ring svg {
            transform: rotate(-90deg);
        }

        .countdown-ring .bg-circle {
            fill: none;
            stroke: #e0e0e0;
            stroke-width: 6;
        }

        .countdown-ring .progress-circle {
            fill: none;
            stroke: var(--color-sport-orange);
            stroke-width: 6;
            stroke-linecap: round;
            transition: stroke-dashoffset 1s ease;
        }

        .countdown-ring .countdown-text {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--color-charcoal);
            text-align: center;
            line-height: 1.1;
        }

        .countdown-ring .countdown-text small {
            display: block;
            font-size: 0.6rem;
            font-weight: 400;
            color: var(--color-text-weak);
        }

        .sell-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: #ccc;
            cursor: pointer;
            transition: all var(--transition-base);
            border: none;
            padding: 0;
        }

        .sell-dot.active {
            background-color: var(--color-sport-orange);
            width: 28px;
            border-radius: 10px;
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border);
            padding: 0;
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 0;
            font-size: 1.05rem;
            font-weight: 600;
            text-align: left;
            display: flex;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            color: var(--color-charcoal);
            transition: color var(--transition-base);
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: #FFF5EF;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.2rem;
            color: var(--color-sport-orange);
            transition: all var(--transition-base);
            font-weight: 700;
        }

        .faq-item.open .faq-icon {
            background-color: var(--color-sport-orange);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            color: var(--color-text-weak);
            line-height: 1.8;
            font-size: 0.95rem;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 20px;
        }

        .timeline-list-item {
            display: flex;
            gap: 20px;
            padding: 16px 0;
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-base);
        }

        .timeline-list-item:hover {
            padding-left: 8px;
            border-bottom-color: var(--color-sport-orange);
        }

        .timeline-date-bar {
            display: flex;
            flex-direction: column;
            align-items: center;
            flex-shrink: 0;
            width: 50px;
        }

        .timeline-date-bar .date-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: var(--color-sport-orange);
            flex-shrink: 0;
            margin-top: 6px;
        }

        .timeline-date-bar .date-line {
            width: 2px;
            flex-grow: 1;
            background-color: #e0e0e0;
            margin-top: 4px;
            transition: background-color var(--transition-base);
        }

        .timeline-list-item:hover .date-line {
            background-color: var(--color-sport-orange);
        }

        .timeline-date {
            font-size: 0.75rem;
            color: var(--color-text-weak);
            writing-mode: vertical-rl;
            letter-spacing: 0.04em;
            flex-shrink: 0;
        }

        @media (max-width: 1024px) {
            .side-nav {
                transform: translateX(-100%);
            }
            .side-nav.open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-nav {
                display: flex;
            }
            .main-content {
                padding-top: 56px;
            }
            .section-padding {
                padding: 3rem 0;
            }
            .countdown-ring {
                width: 70px;
                height: 70px;
            }
            .countdown-ring .countdown-text {
                font-size: 1rem;
            }
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 2.5rem 0;
            }
            .timeline-list-item {
                flex-direction: column;
                gap: 8px;
            }
            .timeline-date-bar {
                flex-direction: row;
                width: auto;
                gap: 8px;
                align-items: center;
            }
            .timeline-date {
                writing-mode: horizontal-tb;
                font-size: 0.8rem;
            }
            .timeline-date-bar .date-line {
                display: none;
            }
            .timeline-date-bar .date-dot {
                margin-top: 0;
            }
        }

        @media (max-width: 520px) {
            .countdown-ring {
                width: 56px;
                height: 56px;
            }
            .countdown-ring .countdown-text {
                font-size: 0.85rem;
            }
            .countdown-ring .countdown-text small {
                font-size: 0.5rem;
            }
        }

        .hero-overlay {
            background: linear-gradient(135deg, rgba(26, 26, 26, 0.88) 0%, rgba(26, 26, 26, 0.65) 40%, rgba(26, 26, 26, 0.35) 100%);
        }

        .data-stat-block {
            text-align: center;
            padding: 24px 16px;
            border-radius: var(--radius-card);
            background: var(--color-white);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

        .data-stat-block:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .data-stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--color-sport-orange);
            line-height: 1;
            letter-spacing: -0.03em;
        }

        .data-stat-label {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            margin-top: 6px;
        }

        .science-tag {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
        }

        .science-tag:hover {
            background-color: var(--color-sport-orange);
            color: #fff;
        }

/* roulang page: category5 */
:root {
            --color-charcoal: #1A1A1A;
            --color-sport-orange: #E65C00;
            --color-sport-orange-dark: #CC5200;
            --color-soft-gray: #F5F5F5;
            --color-white: #FFFFFF;
            --color-text-weak: #6B6B6B;
            --color-border: #E0E0E0;
            --radius-card: 12px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 12px 30px rgba(0, 0, 0, 0.12);
            --transition-base: 0.3s ease;
            --nav-width: 280px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            line-height: 1.7;
            color: var(--color-charcoal);
            background-color: var(--color-white);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

        a {
            color: var(--color-sport-orange);
            text-decoration: none;
            transition: color var(--transition-base);
        }

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

        a:focus-visible {
            outline: 2px solid var(--color-sport-orange);
            outline-offset: 3px;
            border-radius: 2px;
        }

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

        button:focus-visible {
            outline: 2px solid var(--color-sport-orange);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
        }

        .bg-charcoal {
            background-color: #1A1A1A;
        }

        .text-sport-orange {
            color: #E65C00;
        }

        .max-w-container {
            max-width: 1280px;
        }

        /* 左侧固定导航 */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background-color: var(--color-white);
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 0;
            box-shadow: 0 0 30px rgba(0, 0, 0, 0.03);
            transition: transform var(--transition-base);
        }

        .side-nav-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 28px 24px 24px;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-charcoal);
            letter-spacing: -0.02em;
            margin-bottom: 8px;
            flex-shrink: 0;
        }

        .nav-logo span {
            color: var(--color-sport-orange);
        }

        .nav-logo a {
            color: inherit;
            text-decoration: none;
        }

        .nav-logo a:hover {
            color: var(--color-sport-orange);
        }

        .nav-tagline {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            margin-bottom: 40px;
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .nav-channels {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex-grow: 1;
            justify-content: flex-end;
            padding-bottom: 20px;
        }

        .nav-channels a {
            display: block;
            padding: 10px 16px;
            border-radius: 8px;
            color: var(--color-charcoal);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            text-decoration: none;
            letter-spacing: 0.01em;
            position: relative;
        }

        .nav-channels a:hover {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            padding-left: 20px;
        }

        .nav-channels a.active {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            font-weight: 600;
            padding-left: 20px;
        }

        .nav-channels a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background-color: var(--color-sport-orange);
            border-radius: 0 3px 3px 0;
        }

        /* 右侧主内容区 */
        .main-content {
            margin-left: var(--nav-width);
            min-height: 100vh;
        }

        /* 移动端顶部导航 */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background-color: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            z-index: 1001;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }

        .mobile-nav-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-charcoal);
            flex-grow: 1;
        }

        .mobile-nav-logo span {
            color: var(--color-sport-orange);
        }

        .mobile-nav-logo a {
            color: inherit;
            text-decoration: none;
        }

        .hamburger-btn {
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-charcoal);
            padding: 8px;
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            transition: background var(--transition-base);
        }

        .hamburger-btn:hover {
            background: #F5F5F5;
        }

        /* 移动端抽屉菜单 */
        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background-color: var(--color-white);
            z-index: 1002;
            transform: translateX(-100%);
            transition: transform var(--transition-base);
            padding: 24px;
            display: flex;
            flex-direction: column;
        }

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

        .mobile-drawer-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 1.75rem;
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            color: var(--color-charcoal);
            transition: background var(--transition-base);
            flex-shrink: 0;
        }

        .mobile-drawer-close:hover {
            background: #F5F5F5;
        }

        .mobile-drawer-logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--color-charcoal);
            margin-bottom: 8px;
            flex-shrink: 0;
        }

        .mobile-drawer-logo span {
            color: var(--color-sport-orange);
        }

        .mobile-drawer-tagline {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            margin-bottom: 28px;
            flex-shrink: 0;
        }

        .mobile-drawer-channels {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex-grow: 1;
        }

        .mobile-drawer-channels a {
            display: block;
            padding: 12px 16px;
            border-radius: 8px;
            color: var(--color-charcoal);
            font-weight: 500;
            font-size: 1rem;
            transition: all var(--transition-base);
            text-decoration: none;
        }

        .mobile-drawer-channels a:hover {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
        }

        .mobile-drawer-channels a.active {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            font-weight: 600;
        }

        /* 抽屉遮罩 */
        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background-color: rgba(0, 0, 0, 0.4);
            z-index: 1001;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-base);
        }

        .drawer-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        /* 卡片动效 */
        .card-hover {
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }

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

        /* 按钮样式 */
        .btn-primary {
            display: inline-block;
            background-color: var(--color-sport-orange);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            text-align: center;
        }

        .btn-primary:hover {
            background-color: var(--color-sport-orange-dark);
            color: #fff;
            transform: scale(1.02);
        }

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

        .btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--color-charcoal);
            padding: 10px 26px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid var(--color-border);
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            text-align: center;
        }

        .btn-outline:hover {
            border-color: var(--color-sport-orange);
            color: var(--color-sport-orange);
        }

        /* FAQ 折叠面板 */
        .faq-item {
            border-bottom: 1px solid var(--color-border);
            padding: 0;
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 0;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-charcoal);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            text-align: left;
            gap: 12px;
            transition: color var(--transition-base);
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: #F5F5F5;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            transition: all var(--transition-base);
            color: var(--color-charcoal);
        }

        .faq-item.open .faq-icon {
            background-color: var(--color-sport-orange);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0;
            color: var(--color-text-weak);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 0 18px 0;
        }

        /* 滚动渐现 */
        .fade-in-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 日期竖线列表 */
        .date-list-item {
            display: flex;
            gap: 20px;
            padding: 16px 0;
            border-bottom: 1px solid #f0f0f0;
            transition: all var(--transition-base);
        }

        .date-list-item:hover {
            background-color: #fafafa;
        }

        .date-list-marker {
            flex-shrink: 0;
            width: 60px;
            text-align: right;
            color: var(--color-sport-orange);
            font-weight: 600;
            font-size: 0.85rem;
            padding-top: 2px;
            position: relative;
        }

        .date-list-marker::after {
            content: '';
            position: absolute;
            right: -10px;
            top: 8px;
            width: 2px;
            height: calc(100% - 8px);
            background-color: var(--color-sport-orange);
            border-radius: 1px;
            transition: width var(--transition-base);
        }

        .date-list-item:hover .date-list-marker::after {
            width: 4px;
        }

        .date-list-content {
            flex-grow: 1;
        }

        .date-list-content h4 {
            margin: 0 0 4px 0;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-charcoal);
            transition: color var(--transition-base);
        }

        .date-list-item:hover .date-list-content h4 {
            color: var(--color-sport-orange);
        }

        .date-list-content p {
            margin: 0;
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.6;
        }

        /* 步骤时间线 */
        .step-timeline {
            position: relative;
            padding-left: 40px;
        }

        .step-timeline::before {
            content: '';
            position: absolute;
            left: 14px;
            top: 0;
            bottom: 0;
            width: 2px;
            background-color: var(--color-border);
            border-radius: 1px;
        }

        .step-item {
            position: relative;
            margin-bottom: 32px;
            padding-left: 20px;
        }

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

        .step-dot {
            position: absolute;
            left: -40px;
            top: 4px;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background-color: var(--color-sport-orange);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            z-index: 1;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .side-nav {
                display: none;
            }

            .mobile-nav {
                display: flex;
            }

            .main-content {
                margin-left: 0;
                padding-top: 56px;
            }

            .hero-section {
                min-height: 60vh;
            }

            .hero-title {
                font-size: 2rem;
            }

            .section-title {
                font-size: 1.75rem;
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 1.7rem;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .hero-section {
                min-height: 50vh;
            }

            .date-list-item {
                flex-direction: column;
                gap: 6px;
            }

            .date-list-marker {
                text-align: left;
                width: auto;
            }

            .date-list-marker::after {
                display: none;
            }

            .step-timeline {
                padding-left: 30px;
            }

            .step-dot {
                left: -30px;
                width: 24px;
                height: 24px;
                font-size: 0.75rem;
            }

            .step-item {
                padding-left: 12px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.4rem;
            }

            .section-title {
                font-size: 1.3rem;
            }

            .btn-primary,
            .btn-outline {
                padding: 10px 20px;
                font-size: 0.9rem;
                width: 100%;
                text-align: center;
            }

            .hero-section {
                min-height: 45vh;
            }
        }

        /* 本页特有：Hero 背景图叠加 */
        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, rgba(26, 26, 26, 0.82) 0%, rgba(26, 26, 26, 0.55) 45%, rgba(26, 26, 26, 0.25) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

        /* 数据卡片 */
        .stat-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--color-sport-orange);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            margin-top: 4px;
        }

        /* 图文双栏 */
        .image-text-block {
            display: flex;
            align-items: center;
            gap: 40px;
        }

        .image-text-block.reverse {
            flex-direction: row-reverse;
        }

        .image-text-block .image-side {
            flex: 1;
            min-width: 0;
            border-radius: var(--radius-card);
            overflow: hidden;
        }

        .image-text-block .image-side img {
            width: 100%;
            height: auto;
            border-radius: var(--radius-card);
            transition: transform 0.5s ease;
        }

        .image-text-block .image-side:hover img {
            transform: scale(1.03);
        }

        .image-text-block .text-side {
            flex: 1;
            min-width: 0;
        }

        @media (max-width: 768px) {
            .image-text-block {
                flex-direction: column !important;
                gap: 20px;
            }

            .image-text-block .image-side,
            .image-text-block .text-side {
                flex: none;
                width: 100%;
            }

            .stat-number {
                font-size: 2rem;
            }
        }

/* roulang page: category7 */
:root {
            --color-charcoal: #1A1A1A;
            --color-sport-orange: #E65C00;
            --color-sport-orange-dark: #CC5200;
            --color-soft-gray: #F5F5F5;
            --color-white: #FFFFFF;
            --color-text-weak: #6B6B6B;
            --color-border: #E0E0E0;
            --radius-card: 12px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 12px 30px rgba(0, 0, 0, 0.12);
            --transition-base: 0.3s ease;
            --nav-width: 280px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            line-height: 1.7;
            color: var(--color-charcoal);
            background-color: var(--color-white);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

        a {
            color: var(--color-sport-orange);
            text-decoration: none;
            transition: color var(--transition-base);
        }

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

        a:focus-visible {
            outline: 2px solid var(--color-sport-orange);
            outline-offset: 3px;
            border-radius: 2px;
        }

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

        button:focus-visible {
            outline: 2px solid var(--color-sport-orange);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
        }

        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background-color: var(--color-white);
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 0;
            box-shadow: 0 0 30px rgba(0, 0, 0, 0.03);
            transition: transform var(--transition-base);
        }

        .side-nav-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 28px 24px 24px;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-charcoal);
            letter-spacing: -0.02em;
            margin-bottom: 8px;
            flex-shrink: 0;
        }

        .nav-logo span {
            color: var(--color-sport-orange);
        }

        .nav-logo a {
            color: inherit;
            text-decoration: none;
        }

        .nav-logo a:hover {
            color: var(--color-sport-orange);
        }

        .nav-tagline {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            margin-bottom: 40px;
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .nav-channels {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex-grow: 1;
            justify-content: flex-end;
            padding-bottom: 20px;
        }

        .nav-channels a {
            display: block;
            padding: 10px 16px;
            border-radius: 8px;
            color: var(--color-charcoal);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            text-decoration: none;
            letter-spacing: 0.01em;
            position: relative;
        }

        .nav-channels a:hover {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            padding-left: 20px;
        }

        .nav-channels a.active {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            font-weight: 600;
            padding-left: 20px;
        }

        .nav-channels a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background-color: var(--color-sport-orange);
            border-radius: 0 3px 3px 0;
        }

        .main-content {
            margin-left: var(--nav-width);
            min-height: 100vh;
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background-color: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            z-index: 1001;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }

        .mobile-nav-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-charcoal);
            flex-grow: 1;
        }

        .mobile-nav-logo span {
            color: var(--color-sport-orange);
        }

        .hamburger-btn {
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-charcoal);
            padding: 8px;
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            transition: background var(--transition-base);
        }

        .hamburger-btn:hover {
            background: #F5F5F5;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background-color: var(--color-white);
            z-index: 1002;
            transform: translateX(-100%);
            transition: transform var(--transition-base);
            padding: 24px;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
        }

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

        .mobile-drawer-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            color: var(--color-charcoal);
            transition: background var(--transition-base);
            flex-shrink: 0;
        }

        .mobile-drawer-close:hover {
            background: #F5F5F5;
        }

        .mobile-drawer .nav-channels {
            flex-grow: 0;
            justify-content: flex-start;
            padding-top: 20px;
            gap: 4px;
        }

        .mobile-drawer .nav-channels a {
            padding: 14px 16px;
            font-size: 1rem;
        }

        .mobile-drawer .nav-logo {
            font-size: 1.3rem;
            margin-bottom: 4px;
        }

        .mobile-drawer .nav-tagline {
            margin-bottom: 10px;
        }

        .btn-primary {
            display: inline-block;
            background-color: var(--color-sport-orange);
            color: #FFFFFF;
            border: none;
            border-radius: var(--radius-btn);
            padding: 14px 32px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            letter-spacing: 0.02em;
            text-align: center;
        }

        .btn-primary:hover {
            background-color: var(--color-sport-orange-dark);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(230, 92, 0, 0.3);
        }

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

        .btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--color-charcoal);
            border: 2px solid var(--color-charcoal);
            border-radius: var(--radius-btn);
            padding: 13px 30px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            letter-spacing: 0.02em;
            text-align: center;
        }

        .btn-outline:hover {
            border-color: var(--color-sport-orange);
            color: var(--color-sport-orange);
        }

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

        .card-hover {
            background: var(--color-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            overflow: hidden;
        }

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

        .fade-in-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .section-padding {
            padding: 5rem 0;
        }

        .max-w-container {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
        }

        .bg-charcoal {
            background-color: var(--color-charcoal);
        }

        .text-sport-orange {
            color: var(--color-sport-orange);
        }

        .bg-sport-orange {
            background-color: var(--color-sport-orange);
        }

        .bg-soft-gray {
            background-color: var(--color-soft-gray);
        }

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

        @media (max-width: 1024px) {
            .side-nav {
                display: none;
            }
            .mobile-nav {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 56px;
            }
            .section-padding {
                padding: 3rem 0;
            }
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 2.5rem 0;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 24px;
                font-size: 0.95rem;
                width: 100%;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .section-padding {
                padding: 2rem 0;
            }
        }

        .hero-avatar-ring {
            width: 140px;
            height: 140px;
            border-radius: 50%;
            border: 4px solid var(--color-sport-orange);
            box-shadow: 0 0 0 8px rgba(230, 92, 0, 0.15), 0 8px 30px rgba(0, 0, 0, 0.2);
            overflow: hidden;
            background-size: cover;
            background-position: center;
            flex-shrink: 0;
        }

        .badge-stat {
            background: rgba(255, 255, 255, 0.95);
            border-radius: 16px;
            padding: 16px 22px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
            text-align: center;
            backdrop-filter: blur(6px);
            transition: all var(--transition-base);
        }

        .badge-stat:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 32px rgba(0, 0, 0, 0.16);
        }

        .badge-stat-number {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-sport-orange);
            line-height: 1.2;
        }

        .badge-stat-label {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            margin-top: 2px;
            letter-spacing: 0.03em;
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border);
            padding: 0;
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 18px 0;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-charcoal);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: color var(--transition-base);
            letter-spacing: 0.01em;
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #FFF5EF;
            color: var(--color-sport-orange);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            flex-shrink: 0;
            transition: all var(--transition-base);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 0 0 40px;
            color: var(--color-text-weak);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 0 20px 40px;
        }

        .faq-item.open .faq-icon {
            background: var(--color-sport-orange);
            color: #FFFFFF;
        }

        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-sport-orange);
            color: #FFFFFF;
            font-weight: 700;
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            box-shadow: 0 4px 16px rgba(230, 92, 0, 0.3);
            transition: all var(--transition-base);
        }

        .step-item:hover .step-number {
            transform: scale(1.08);
            box-shadow: 0 8px 24px rgba(230, 92, 0, 0.4);
        }

/* roulang page: category6 */
:root {
            --color-charcoal: #1A1A1A;
            --color-sport-orange: #E65C00;
            --color-sport-orange-dark: #CC5200;
            --color-soft-gray: #F5F5F5;
            --color-white: #FFFFFF;
            --color-text-weak: #6B6B6B;
            --color-border: #E0E0E0;
            --radius-card: 12px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 12px 30px rgba(0, 0, 0, 0.12);
            --transition-base: 0.3s ease;
            --nav-width: 280px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            line-height: 1.7;
            color: var(--color-charcoal);
            background-color: var(--color-white);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

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

        a {
            color: var(--color-sport-orange);
            text-decoration: none;
            transition: color var(--transition-base);
        }

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

        a:focus-visible {
            outline: 2px solid var(--color-sport-orange);
            outline-offset: 3px;
            border-radius: 2px;
        }

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

        button:focus-visible {
            outline: 2px solid var(--color-sport-orange);
            outline-offset: 3px;
            border-radius: 4px;
        }

        input {
            font-family: inherit;
        }

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

        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background-color: var(--color-white);
            border-right: 1px solid var(--color-border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 0;
            box-shadow: 0 0 30px rgba(0, 0, 0, 0.03);
            transition: transform var(--transition-base);
        }

        .side-nav-inner {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 28px 24px 24px;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-charcoal);
            letter-spacing: -0.02em;
            margin-bottom: 8px;
            flex-shrink: 0;
        }

        .nav-logo span {
            color: var(--color-sport-orange);
        }

        .nav-logo a {
            color: inherit;
            text-decoration: none;
        }

        .nav-logo a:hover {
            color: var(--color-sport-orange);
        }

        .nav-tagline {
            font-size: 0.8rem;
            color: var(--color-text-weak);
            margin-bottom: 40px;
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .nav-channels {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex-grow: 1;
            justify-content: flex-end;
            padding-bottom: 20px;
        }

        .nav-channels a {
            display: block;
            padding: 10px 16px;
            border-radius: 8px;
            color: var(--color-charcoal);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            text-decoration: none;
            letter-spacing: 0.01em;
            position: relative;
        }

        .nav-channels a:hover {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            padding-left: 20px;
        }

        .nav-channels a.active {
            background-color: #FFF5EF;
            color: var(--color-sport-orange);
            font-weight: 600;
            padding-left: 20px;
        }

        .nav-channels a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 20px;
            background-color: var(--color-sport-orange);
            border-radius: 0 3px 3px 0;
        }

        .main-content {
            margin-left: var(--nav-width);
            min-height: 100vh;
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background-color: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            z-index: 1001;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }

        .mobile-nav-logo {
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-charcoal);
            flex-grow: 1;
        }

        .mobile-nav-logo span {
            color: var(--color-sport-orange);
        }

        .hamburger-btn {
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-charcoal);
            padding: 8px;
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            transition: background var(--transition-base);
        }

        .hamburger-btn:hover {
            background: #F5F5F5;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background-color: var(--color-white);
            z-index: 1002;
            transform: translateX(-100%);
            transition: transform var(--transition-base);
            padding: 24px;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
        }

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

        .mobile-drawer-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            color: var(--color-charcoal);
            transition: background var(--transition-base);
        }

        .mobile-drawer-close:hover {
            background: #F5F5F5;
        }

        .mobile-drawer .nav-channels {
            flex-grow: 0;
            justify-content: flex-start;
            padding-top: 20px;
            gap: 4px;
        }

        .mobile-drawer .nav-channels a {
            padding: 12px 16px;
            font-size: 1rem;
        }

        .mobile-drawer .nav-logo {
            font-size: 1.3rem;
        }

        .mobile-drawer .nav-tagline {
            margin-bottom: 20px;
        }

        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1001;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-base);
        }

        .drawer-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }

        .max-w-container {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
        }

        .bg-charcoal {
            background-color: var(--color-charcoal);
        }

        .text-sport-orange {
            color: var(--color-sport-orange);
        }

        .bg-sport-orange {
            background-color: var(--color-sport-orange);
        }

        .bg-sport-orange-dark {
            background-color: var(--color-sport-orange-dark);
        }

        .btn-primary {
            display: inline-block;
            background-color: var(--color-sport-orange);
            color: #FFFFFF;
            border: none;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background-color: var(--color-sport-orange-dark);
            color: #FFFFFF;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(230, 92, 0, 0.3);
        }

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

        .btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--color-charcoal);
            border: 2px solid var(--color-charcoal);
            padding: 12px 30px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            letter-spacing: 0.02em;
        }

        .btn-outline:hover {
            border-color: var(--color-sport-orange);
            color: var(--color-sport-orange);
        }

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

        .card-base {
            background: var(--color-white);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            overflow: hidden;
        }

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

        .section-padding {
            padding: 5rem 1.5rem;
        }

        .data-list-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--color-border);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .data-list-item:hover .data-date-line {
            width: 4px;
            background-color: var(--color-sport-orange);
        }

        .data-list-item:hover .data-title {
            color: var(--color-sport-orange);
        }

        .data-date-line {
            width: 2px;
            min-width: 2px;
            background-color: var(--color-sport-orange);
            border-radius: 1px;
            transition: all var(--transition-base);
            flex-shrink: 0;
        }

        .data-date {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            white-space: nowrap;
            min-width: 90px;
            flex-shrink: 0;
        }

        .data-title {
            font-weight: 600;
            font-size: 1.1rem;
            color: var(--color-charcoal);
            transition: color var(--transition-base);
            margin-bottom: 4px;
        }

        .data-excerpt {
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.6;
        }

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

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 0;
            text-align: left;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-charcoal);
            display: flex;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            transition: color var(--transition-base);
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background-color: var(--color-soft-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
            transition: all var(--transition-base);
            color: var(--color-sport-orange);
            font-weight: 700;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 0 0 40px;
            color: var(--color-text-weak);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 0 18px 40px;
        }

        .faq-item.open .faq-icon {
            background-color: var(--color-sport-orange);
            color: #FFFFFF;
        }

        .stat-big-number {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--color-sport-orange);
            line-height: 1;
            letter-spacing: -0.03em;
        }

        .bento-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
        }

        .bento-main {
            grid-row: span 2;
            border-radius: var(--radius-card);
            overflow: hidden;
            position: relative;
            min-height: 420px;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: flex-end;
            padding: 40px;
        }

        .bento-main::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(26, 26, 26, 0.85) 0%, rgba(26, 26, 26, 0.2) 50%, rgba(26, 26, 26, 0.05) 100%);
            z-index: 1;
        }

        .bento-main-content {
            position: relative;
            z-index: 2;
            color: #FFFFFF;
            max-width: 600px;
        }

        .bento-sub {
            border-radius: var(--radius-card);
            background: var(--color-white);
            box-shadow: var(--shadow-card);
            padding: 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            transition: all var(--transition-base);
            border: 1px solid var(--color-border);
        }

        .bento-sub:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--color-sport-orange);
        }

        .bento-cta-strip {
            grid-column: 1 / -1;
            background: var(--color-charcoal);
            border-radius: var(--radius-card);
            padding: 24px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .fade-in-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }

        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (max-width: 1024px) {
            .side-nav {
                display: none;
            }
            .mobile-nav {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 56px;
            }
            .section-padding {
                padding: 3rem 1rem;
            }
            .bento-grid {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
            }
            .bento-main {
                grid-row: span 1;
                min-height: 300px;
                padding: 24px;
            }
            .bento-cta-strip {
                flex-direction: column;
                text-align: center;
            }
            .stat-big-number {
                font-size: 2.5rem;
            }
            .data-list-item {
                flex-direction: column;
                gap: 8px;
            }
            .data-date-line {
                display: none;
            }
            .data-date {
                min-width: auto;
            }
        }

        @media (max-width: 768px) {
            .bento-main {
                min-height: 240px;
                padding: 20px;
            }
            .bento-main-content h2 {
                font-size: 1.4rem;
            }
            .bento-sub {
                padding: 20px;
            }
            .stat-big-number {
                font-size: 2rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .bento-main {
                min-height: 200px;
                padding: 16px;
            }
            .bento-main-content h2 {
                font-size: 1.2rem;
            }
            .section-padding {
                padding: 2rem 0.75rem;
            }
            .stat-big-number {
                font-size: 1.6rem;
            }
        }