/* roulang page: index */
:root {
      --primary-red: #E50914;
      --primary-hover: #FF3B30;
      --accent-gold: #FFB800;
      --accent-cyan: #00D2D3;
      --bg-darkest: #0E0F12;
      --bg-card: #18191E;
      --bg-elevated: #1F2128;
      --text-main: #FFFFFF;
      --text-muted: #D0D3DC;
      --text-sub: #8A8F9E;
      --border-subtle: rgba(255, 255, 255, 0.08);
      --border-active: rgba(229, 9, 20, 0.4);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }

    body {
      background-color: var(--bg-darkest);
      color: var(--text-muted);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.75;
      font-size: 15px;
      overflow-x: hidden;
    }

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

    /* 顶部导航 */
    .site-header {
      background: rgba(14, 15, 18, 0.88);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-subtle);
      position: sticky;
      top: 0;
      z-index: 1050;
      padding: 12px 0;
    }
    .brand-logo {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text-main);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      letter-spacing: -0.5px;
    }
    .brand-logo .brand-icon {
      width: 34px;
      height: 34px;
      background: linear-gradient(135deg, var(--primary-red), var(--primary-hover));
      color: #fff;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1rem;
      box-shadow: 0 4px 12px rgba(229, 9, 20, 0.35);
    }
    .nav-search-wrap {
      position: relative;
      width: 100%;
      max-width: 440px;
    }
    .nav-search-input {
      width: 100%;
      background: var(--bg-elevated);
      border: 1px solid var(--border-subtle);
      border-radius: 24px;
      padding: 8px 90px 8px 40px;
      color: var(--text-main);
      font-size: 0.88rem;
      transition: var(--transition);
    }
    .nav-search-input:focus {
      outline: none;
      background: #252831;
      border-color: var(--primary-red);
      box-shadow: 0 0 0 3px rgba(229, 9, 20, 0.2);
    }
    .nav-search-icon {
      position: absolute;
      left: 15px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--text-sub);
      font-size: 0.9rem;
    }
    .nav-search-btn {
      position: absolute;
      right: 4px;
      top: 50%;
      transform: translateY(-50%);
      background: var(--primary-red);
      border: none;
      color: #fff;
      border-radius: 20px;
      padding: 4px 14px;
      font-size: 0.8rem;
      font-weight: 600;
      transition: var(--transition);
    }
    .nav-search-btn:hover {
      background: var(--primary-hover);
    }
    .nav-link-pill {
      font-size: 0.9rem;
      font-weight: 600;
      padding: 6px 16px;
      border-radius: 20px;
      color: var(--text-muted);
    }
    .nav-link-pill.active, .nav-link-pill:hover {
      color: var(--text-main);
      background: var(--bg-elevated);
    }

    /* 板块通用间距与标题 */
    .content-section {
      padding: 56px 0;
      position: relative;
    }
    .section-header {
      margin-bottom: 32px;
    }
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(229, 9, 20, 0.12);
      color: var(--primary-hover);
      border: 1px solid rgba(229, 9, 20, 0.25);
      border-radius: 20px;
      font-size: 0.78rem;
      font-weight: 700;
      padding: 3px 12px;
      margin-bottom: 10px;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 1.65rem;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: -0.5px;
      margin-bottom: 8px;
    }
    .section-desc {
      color: var(--text-sub);
      font-size: 0.92rem;
      max-width: 680px;
      margin-bottom: 0;
    }

    /* 卡片基础外观 */
    .tech-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      height: 100%;
      transition: var(--transition);
      position: relative;
    }
    .tech-card:hover {
      border-color: var(--border-active);
      transform: translateY(-4px);
      box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45);
    }

    /* 按钮规范 */
    .btn-main {
      background: linear-gradient(135deg, var(--primary-red), var(--primary-hover));
      color: #fff;
      border: none;
      font-weight: 600;
      border-radius: var(--radius-sm);
      padding: 10px 22px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition);
      font-size: 0.92rem;
    }
    .btn-main:hover {
      color: #fff;
      filter: brightness(1.12);
      box-shadow: 0 4px 16px rgba(229, 9, 20, 0.4);
    }
    .btn-outline-custom {
      background: transparent;
      color: var(--text-main);
      border: 1px solid var(--border-subtle);
      font-weight: 600;
      border-radius: var(--radius-sm);
      padding: 10px 20px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: var(--transition);
      font-size: 0.92rem;
    }
    .btn-outline-custom:hover {
      background: var(--bg-elevated);
      border-color: rgba(255, 255, 255, 0.2);
      color: #fff;
    }

    /* 板块一：实时热度与全网并发指标看板 */
    .kpi-card {
      background: linear-gradient(180deg, #1A1C23 0%, var(--bg-card) 100%);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      display: flex;
      align-items: center;
      gap: 16px;
    }
    .kpi-icon-wrap {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
    }
    .kpi-num {
      font-size: 1.6rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.1;
    }
    .kpi-label {
      font-size: 0.8rem;
      color: var(--text-sub);
      margin-top: 2px;
    }
    .online-pulse {
      display: inline-block;
      width: 8px;
      height: 8px;
      background: var(--accent-cyan);
      border-radius: 50%;
      box-shadow: 0 0 0 3px rgba(0, 210, 211, 0.3);
      animation: pulseAnim 2s infinite;
      margin-right: 6px;
    }
    @keyframes pulseAnim {
      0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 210, 211, 0.6); }
      70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(0, 210, 211, 0); }
      100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 210, 211, 0); }
    }

    /* 板块二：Hero 试用申请与焦点推荐 */
    .hero-container {
      background: radial-gradient(circle at 80% 20%, rgba(229, 9, 20, 0.12) 0%, transparent 55%), var(--bg-elevated);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 40px;
      overflow: hidden;
      position: relative;
    }
    .hero-h1 {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.25;
      margin-bottom: 16px;
    }
    .hero-h1 span {
      background: linear-gradient(90deg, #FFFFFF, var(--primary-hover));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-badge-tag {
      background: rgba(255, 184, 0, 0.15);
      color: var(--accent-gold);
      border: 1px solid rgba(255, 184, 0, 0.3);
      font-size: 0.8rem;
      padding: 3px 10px;
      border-radius: 4px;
      font-weight: 600;
    }

    /* 模拟封面图与排行榜列表 */
    .rank-list-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 14px;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      margin-bottom: 8px;
      transition: var(--transition);
    }
    .rank-list-item:hover {
      border-color: var(--primary-red);
      background: #232630;
    }
    .rank-index {
      width: 24px;
      height: 24px;
      border-radius: 4px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.78rem;
      font-weight: 800;
      margin-right: 12px;
    }
    .rank-top-1 { background: var(--primary-red); color: #fff; }
    .rank-top-2 { background: #FF7675; color: #fff; }
    .rank-top-3 { background: var(--accent-gold); color: #1a1a1a; }
    .rank-top-normal { background: var(--bg-elevated); color: var(--text-sub); }

    /* 板块三：服务矩阵 */
    .matrix-card {
      padding: 24px;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      transition: var(--transition);
    }
    .matrix-card:hover {
      border-color: var(--border-active);
      transform: translateY(-4px);
    }
    .matrix-icon {
      width: 44px;
      height: 44px;
      background: rgba(229, 9, 20, 0.1);
      color: var(--primary-hover);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      margin-bottom: 16px;
    }

    /* 板块四：对比表格 */
    .compare-table {
      width: 100%;
      border-collapse: separate;
      border-spacing: 0;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .compare-table th {
      background: var(--bg-elevated);
      color: var(--text-main);
      padding: 16px 20px;
      font-size: 0.95rem;
      font-weight: 700;
      border-bottom: 1px solid var(--border-subtle);
    }
    .compare-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-subtle);
      font-size: 0.9rem;
      vertical-align: middle;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .check-yes { color: #2ecc71; font-weight: 600; }
    .check-no { color: #e74c3c; font-weight: 600; }

    /* 板块五：技术演进里程碑 */
    .milestone-track {
      position: relative;
      border-left: 2px dashed rgba(255, 255, 255, 0.15);
      padding-left: 28px;
      margin-left: 12px;
    }
    .milestone-node {
      position: relative;
      margin-bottom: 36px;
    }
    .milestone-node:last-child {
      margin-bottom: 0;
    }
    .milestone-dot {
      position: absolute;
      left: -35px;
      top: 4px;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--primary-red);
      border: 3px solid var(--bg-darkest);
    }
    .milestone-card {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 18px 22px;
    }

    /* 板块六：资讯动态列表 */
    .article-item {
      display: flex;
      gap: 18px;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 18px;
      margin-bottom: 16px;
      transition: var(--transition);
    }
    .article-item:hover {
      border-color: var(--border-active);
      transform: translateY(-2px);
    }
    .article-thumb {
      width: 120px;
      height: 80px;
      border-radius: 8px;
      background: #252831;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-sub);
      font-size: 1.5rem;
      flex-shrink: 0;
    }

    /* 板块七：分类速选专区 */
    .category-entry-box {
      background: linear-gradient(135deg, #1C1E26 0%, #15161B 100%);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      text-align: center;
      transition: var(--transition);
    }
    .category-entry-box:hover {
      border-color: var(--primary-red);
      background: #222530;
      transform: translateY(-3px);
    }

    /* 板块八：平台保障卡片 */
    .security-badge-icon {
      font-size: 2rem;
      color: var(--accent-cyan);
      margin-bottom: 12px;
    }

    /* 板块九：跨端设备投屏 */
    .device-screen-mock {
      background: #15161C;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 28px;
      text-align: center;
    }

    /* 板块十：新手上手步骤 */
    .step-box {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 22px;
      position: relative;
    }
    .step-num-flag {
      position: absolute;
      top: 14px;
      right: 16px;
      font-size: 2.2rem;
      font-weight: 900;
      color: rgba(255, 255, 255, 0.05);
      line-height: 1;
    }

    /* 板块十一：FAQ 手风琴 */
    .custom-accordion .accordion-item {
      background-color: var(--bg-card);
      border: 1px solid var(--border-subtle);
      margin-bottom: 12px;
      border-radius: var(--radius-sm);
      overflow: hidden;
    }
    .custom-accordion .accordion-button {
      background-color: var(--bg-card);
      color: var(--text-main);
      font-weight: 600;
      font-size: 0.98rem;
      box-shadow: none;
      padding: 16px 20px;
    }
    .custom-accordion .accordion-button:not(.collapsed) {
      background-color: var(--bg-elevated);
      color: var(--primary-hover);
    }
    .custom-accordion .accordion-button::after {
      filter: invert(1);
    }
    .custom-accordion .accordion-body {
      background-color: var(--bg-card);
      color: var(--text-muted);
      font-size: 0.92rem;
      border-top: 1px solid var(--border-subtle);
      padding: 18px 20px;
      line-height: 1.8;
    }

    /* 板块十二：收口表单 */
    .feedback-form-box {
      background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-card) 100%);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 36px;
    }
    .custom-input {
      background: #131418;
      border: 1px solid var(--border-subtle);
      color: #fff;
      border-radius: var(--radius-sm);
      padding: 10px 14px;
      font-size: 0.9rem;
    }
    .custom-input:focus {
      background: #18191f;
      border-color: var(--primary-red);
      color: #fff;
      box-shadow: 0 0 0 3px rgba(229, 9, 20, 0.2);
    }

    /* 页脚 */
    .site-footer {
      background: #090A0D;
      border-top: 1px solid var(--border-subtle);
      padding: 56px 0 24px 0;
      color: var(--text-sub);
      font-size: 0.88rem;
    }
    .footer-col-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 18px;
    }
    .footer-links-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links-list li {
      margin-bottom: 10px;
    }
    .footer-bottom-bar {
      margin-top: 48px;
      padding-top: 20px;
      border-top: 1px solid var(--border-subtle);
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      font-size: 0.82rem;
    }

    @media (max-width: 991px) {
      .hero-container {
        padding: 28px 20px;
      }
      .nav-search-wrap {
        max-width: 100%;
        margin: 12px 0;
      }
    }
    @media (max-width: 576px) {
      .hero-h1 {
        font-size: 1.6rem;
      }
      .section-title {
        font-size: 1.35rem;
      }
      .content-section {
        padding: 40px 0;
      }
    }

/* roulang page: category1 */
:root {
        --primary-red: #E50914;
        --primary-hover: #FF3B30;
        --accent-gold: #FFB800;
        --accent-cyan: #00D2D3;
        --bg-darkest: #0E0F12;
        --bg-card: #18191E;
        --bg-elevated: #1F2128;
        --text-main: #FFFFFF;
        --text-muted: #D0D3DC;
        --text-sub: #8A8F9E;
        --border-subtle: rgba(255, 255, 255, 0.08);
        --border-active: rgba(229, 9, 20, 0.4);
        --radius-sm: 8px;
        --radius-md: 12px;
        --radius-lg: 16px;
        --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }
    body {
        background-color: var(--bg-darkest);
        color: var(--text-muted);
        font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        line-height: 1.75;
        font-size: 15px;
        overflow-x: hidden;
    }
    a {
        color: inherit;
        text-decoration: none;
        transition: var(--transition);
    }
    a:hover {
        color: var(--primary-hover);
    }

    /* 顶部导航统一结构 */
    .site-header {
        background: rgba(14, 15, 18, 0.88);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--border-subtle);
        position: sticky;
        top: 0;
        z-index: 1050;
        padding: 12px 0;
    }
    .brand-logo {
        font-size: 1.25rem;
        font-weight: 800;
        color: var(--text-main);
        display: inline-flex;
        align-items: center;
        gap: 8px;
        letter-spacing: -0.5px;
    }
    .brand-logo .brand-icon {
        width: 34px;
        height: 34px;
        background: linear-gradient(135deg, var(--primary-red), var(--primary-hover));
        color: #fff;
        border-radius: var(--radius-sm);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1rem;
        box-shadow: 0 4px 12px rgba(229, 9, 20, 0.35);
    }
    .nav-search-wrap {
        position: relative;
        width: 100%;
        max-width: 440px;
    }
    .nav-search-input {
        width: 100%;
        background: var(--bg-elevated);
        border: 1px solid var(--border-subtle);
        border-radius: 24px;
        padding: 8px 90px 8px 40px;
        color: var(--text-main);
        font-size: 0.88rem;
        transition: var(--transition);
    }
    .nav-search-input:focus {
        outline: none;
        background: #252831;
        border-color: var(--primary-red);
        box-shadow: 0 0 0 3px rgba(229, 9, 20, 0.2);
    }
    .nav-search-icon {
        position: absolute;
        left: 15px;
        top: 50%;
        transform: translateY(-50%);
        color: var(--text-sub);
        font-size: 0.9rem;
    }
    .nav-search-btn {
        position: absolute;
        right: 4px;
        top: 50%;
        transform: translateY(-50%);
        background: var(--primary-red);
        border: none;
        color: #fff;
        border-radius: 20px;
        padding: 4px 14px;
        font-size: 0.8rem;
        font-weight: 600;
        transition: var(--transition);
    }
    .nav-search-btn:hover {
        background: var(--primary-hover);
    }
    .nav-link-pill {
        font-size: 0.9rem;
        font-weight: 600;
        padding: 6px 16px;
        border-radius: 20px;
        color: var(--text-muted);
    }
    .nav-link-pill.active, .nav-link-pill:hover {
        color: var(--text-main);
        background: var(--bg-elevated);
    }

    /* 按钮规范 */
    .btn-main {
        background: linear-gradient(135deg, var(--primary-red), var(--primary-hover));
        color: #fff;
        border: none;
        font-weight: 600;
        border-radius: var(--radius-sm);
        padding: 10px 22px;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        transition: var(--transition);
        font-size: 0.92rem;
    }
    .btn-main:hover {
        color: #fff;
        filter: brightness(1.12);
        box-shadow: 0 4px 16px rgba(229, 9, 20, 0.4);
    }
    .btn-outline-custom {
        background: transparent;
        color: var(--text-main);
        border: 1px solid var(--border-subtle);
        font-weight: 600;
        border-radius: var(--radius-sm);
        padding: 10px 20px;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        transition: var(--transition);
        font-size: 0.92rem;
    }
    .btn-outline-custom:hover {
        background: var(--bg-elevated);
        border-color: rgba(255, 255, 255, 0.2);
        color: #fff;
    }

    /* 板块通用间距与标题 */
    .content-section {
        padding: 56px 0;
        position: relative;
    }
    .section-header {
        margin-bottom: 32px;
    }
    .section-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: rgba(229, 9, 20, 0.12);
        color: var(--primary-hover);
        border: 1px solid rgba(229, 9, 20, 0.25);
        border-radius: 20px;
        font-size: 0.78rem;
        font-weight: 700;
        padding: 3px 12px;
        margin-bottom: 10px;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }
    .section-title {
        font-size: 1.65rem;
        font-weight: 700;
        color: var(--text-main);
        letter-spacing: -0.5px;
        margin-bottom: 8px;
    }
    .section-desc {
        color: var(--text-sub);
        font-size: 0.92rem;
        max-width: 680px;
        margin-bottom: 0;
    }

    /* 卡片基础外观 */
    .tech-card {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-md);
        padding: 24px;
        height: 100%;
        transition: var(--transition);
        position: relative;
    }
    .tech-card:hover {
        border-color: var(--border-active);
        transform: translateY(-4px);
        box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45);
    }

    /* 板块一：分类专属标题与场景化筛选控制台 */
    .filter-dashboard {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-lg);
        padding: 28px;
    }
    .filter-group-row {
        display: flex;
        align-items: flex-start;
        padding: 10px 0;
        border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
    }
    .filter-group-row:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }
    .filter-label {
        width: 80px;
        flex-shrink: 0;
        font-size: 0.85rem;
        color: var(--text-sub);
        font-weight: 600;
        padding-top: 4px;
    }
    .filter-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    .filter-tag-item {
        font-size: 0.82rem;
        padding: 4px 14px;
        border-radius: 6px;
        background: var(--bg-elevated);
        color: var(--text-muted);
        border: 1px solid transparent;
        cursor: pointer;
        transition: var(--transition);
    }
    .filter-tag-item:hover {
        color: var(--text-main);
        border-color: rgba(255, 255, 255, 0.2);
    }
    .filter-tag-item.active {
        background: var(--primary-red);
        color: #fff;
        font-weight: 600;
        box-shadow: 0 2px 8px rgba(229, 9, 20, 0.35);
    }

    /* 板块二：媒体卡片矩阵瀑布流 */
    .media-card {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: var(--transition);
        display: flex;
        flex-direction: column;
        height: 100%;
    }
    .media-card:hover {
        border-color: var(--border-active);
        transform: translateY(-5px);
        box-shadow: 0 14px 30px rgba(0, 0, 0, 0.5);
    }
    .media-poster-wrap {
        position: relative;
        width: 100%;
        padding-top: 135%;
        background: #15161c;
        overflow: hidden;
    }
    .media-poster-placeholder {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        background: linear-gradient(180deg, rgba(31, 33, 40, 0.4) 0%, rgba(14, 15, 18, 0.9) 100%);
        color: rgba(255, 255, 255, 0.35);
        transition: var(--transition);
    }
    .media-card:hover .media-poster-placeholder {
        transform: scale(1.04);
        color: var(--primary-hover);
    }
    .media-badge-quality {
        position: absolute;
        top: 10px;
        left: 10px;
        background: rgba(0, 0, 0, 0.75);
        color: var(--accent-gold);
        font-size: 0.72rem;
        font-weight: 700;
        padding: 2px 8px;
        border-radius: 4px;
        border: 1px solid rgba(255, 184, 0, 0.4);
        backdrop-filter: blur(4px);
    }
    .media-badge-rate {
        position: absolute;
        top: 10px;
        right: 10px;
        background: rgba(229, 9, 20, 0.85);
        color: #fff;
        font-size: 0.72rem;
        font-weight: 700;
        padding: 2px 8px;
        border-radius: 4px;
    }
    .media-progress-bar {
        position: absolute;
        bottom: 0;
        left: 0;
        width: 100%;
        height: 3px;
        background: rgba(255, 255, 255, 0.1);
    }
    .media-progress-inner {
        height: 100%;
        background: linear-gradient(90deg, var(--primary-red), var(--primary-hover));
    }
    .media-info {
        padding: 16px;
        display: flex;
        flex-direction: column;
        flex-grow: 1;
    }
    .media-title {
        font-size: 1rem;
        font-weight: 700;
        color: var(--text-main);
        margin-bottom: 6px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .media-meta {
        font-size: 0.78rem;
        color: var(--text-sub);
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 12px;
    }
    .media-tags {
        display: flex;
        gap: 6px;
        flex-wrap: wrap;
        margin-top: auto;
    }
    .media-tag-badge {
        font-size: 0.72rem;
        background: var(--bg-elevated);
        color: var(--text-sub);
        padding: 2px 8px;
        border-radius: 4px;
    }

    /* 板块三：分页与控制区 */
    .pagination-bar {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-md);
        padding: 20px 24px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 16px;
    }
    .custom-page-btn {
        width: 36px;
        height: 36px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 6px;
        background: var(--bg-elevated);
        border: 1px solid var(--border-subtle);
        color: var(--text-muted);
        font-size: 0.85rem;
        font-weight: 600;
        cursor: pointer;
        transition: var(--transition);
    }
    .custom-page-btn:hover, .custom-page-btn.active {
        background: var(--primary-red);
        color: #fff;
        border-color: var(--primary-red);
    }
    .load-more-btn {
        background: linear-gradient(135deg, rgba(229, 9, 20, 0.15), rgba(255, 59, 48, 0.08));
        color: var(--text-main);
        border: 1px solid var(--border-active);
        border-radius: var(--radius-sm);
        padding: 10px 24px;
        font-weight: 600;
        font-size: 0.9rem;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        transition: var(--transition);
    }
    .load-more-btn:hover {
        background: var(--primary-red);
        color: #fff;
    }

    /* 板块四：热播与高口碑飙升排行榜 */
    .rank-card {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-md);
        padding: 24px;
        position: relative;
        overflow: hidden;
        height: 100%;
        transition: var(--transition);
    }
    .rank-card:hover {
        border-color: rgba(255, 184, 0, 0.5);
        transform: translateY(-4px);
    }
    .rank-badge-medal {
        position: absolute;
        top: -10px;
        right: 18px;
        width: 34px;
        height: 48px;
        display: flex;
        align-items: flex-end;
        justify-content: center;
        padding-bottom: 6px;
        font-weight: 800;
        font-size: 0.95rem;
        color: #000;
        clip-path: polygon(0% 0%, 100% 0%, 100% 100%, 50% 80%, 0% 100%);
    }
    .rank-gold { background: linear-gradient(180deg, #FFE066 0%, #FFB800 100%); }
    .rank-silver { background: linear-gradient(180deg, #E0E4EC 0%, #A0A5B5 100%); }
    .rank-bronze { background: linear-gradient(180deg, #E89E6B 0%, #B86730 100%); }
    .rank-score {
        font-size: 1.8rem;
        font-weight: 800;
        color: var(--accent-gold);
        line-height: 1;
        margin-bottom: 4px;
    }

    /* 板块五：观影体验参数与播放支持规范说明 */
    .spec-card {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-md);
        padding: 24px;
        height: 100%;
    }
    .spec-icon-box {
        width: 44px;
        height: 44px;
        border-radius: 10px;
        background: rgba(0, 210, 211, 0.12);
        color: var(--accent-cyan);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.2rem;
        margin-bottom: 16px;
    }
    .spec-item-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .spec-item-list li {
        font-size: 0.85rem;
        color: var(--text-muted);
        padding: 6px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        display: flex;
        justify-content: space-between;
    }
    .spec-item-list li:last-child {
        border-bottom: none;
    }

    /* 板块六：常见播放疑难排查 */
    .trouble-card {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-md);
        padding: 20px 24px;
        height: 100%;
    }
    .trouble-card .trouble-title {
        font-size: 0.98rem;
        font-weight: 700;
        color: var(--text-main);
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 10px;
    }

    /* 板块七：社区观影心得与话题讨论 */
    .comment-item {
        background: var(--bg-elevated);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-sm);
        padding: 16px 20px;
        margin-bottom: 14px;
    }
    .comment-avatar {
        width: 38px;
        height: 38px;
        border-radius: 50%;
        background: #2b2e38;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-sub);
        font-weight: 700;
        font-size: 0.85rem;
    }
    .comment-form-box {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-md);
        padding: 24px;
    }

    /* 页脚样式 */
    .site-footer {
        background: #090A0D;
        border-top: 1px solid var(--border-subtle);
        padding: 60px 0 28px;
        color: var(--text-sub);
    }
    .footer-brand-icon {
        width: 32px;
        height: 32px;
        background: var(--primary-red);
        color: #fff;
        border-radius: var(--radius-sm);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.95rem;
    }
    .footer-link {
        color: var(--text-sub);
        font-size: 0.86rem;
        transition: var(--transition);
    }
    .footer-link:hover {
        color: #fff;
    }
    .footer-bottom {
        border-top: 1px solid var(--border-subtle);
        padding-top: 24px;
        margin-top: 40px;
        font-size: 0.82rem;
    }

    /* 移动端响应微调 */
    @media (max-width: 991px) {
        .nav-search-wrap {
            max-width: 100%;
            margin-top: 10px;
        }
        .filter-dashboard {
            padding: 18px;
        }
        .content-section {
            padding: 40px 0;
        }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}