:root {
      --bg: #030712;
      --bg2: #0d1117;
      --bg3: #161b22;
      --border: rgba(255,255,255,0.07);
      --text: #f0f6fc;
      --text2: #8b949e;
      --text3: #6e7681;
      --accent: #58a6ff;
      --accent2: #79c0ff;
      --gold: #ffd700;
      --silver: #c0c0c0;
      --bronze: #cd7f32;
      --green: #3fb950;
      --orange: #d29922;
      --red: #f85149;
      --purple: #bc8cff;
      --pink: #f778ba;
    }

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

    body {
      background: var(--bg);
      color: var(--text);
      font-family: 'Inter', sans-serif;
      min-height: 100vh;
      overflow-x: hidden;
    }

    /* ── TOP NAV ── */
    .site-header {
      background: var(--bg);
      position: sticky; top: 0; z-index: 100;
      padding: 0 24px;
      display: flex; justify-content: center;
    }
    .nav-container {
      display: flex; gap: 8px; height: 56px; align-items: center; justify-content: center;
      max-width: 1200px; width: 100%;
    }
    /* 左侧官网入口 */
    .nav-home-btn {
      color: var(--text); font-weight: 500; font-size: 14px;
      text-decoration: none; padding: 8px 16px; border-radius: 8px;
      transition: all 0.2s; white-space: nowrap;
      margin-right: 8px;
    }
    .nav-home-btn:hover { color: var(--text); background: var(--bg2); }
    /* 右侧 APP 下载按钮 */
    .nav-app-btn {
      color: var(--accent); font-weight: 600; font-size: 13px;
      text-decoration: none; padding: 8px 16px; border-radius: 8px;
      border: 1px solid rgba(88,166,255,0.35);
      background: rgba(88,166,255,0.08);
      transition: all 0.2s; white-space: nowrap;
      margin-left: 8px;
    }
    .nav-app-btn:hover { background: rgba(88,166,255,0.18); border-color: var(--accent); }
    .nav-dropdown {
      height: 100%; display: flex; align-items: center;
    }
    .nav-container > a, .nav-dropdown > a {
      color: var(--text3); font-weight: 500; font-size: 14px;
      text-decoration: none; padding: 8px 16px; border-radius: 8px;
      transition: all 0.2s; cursor: pointer; display: flex; align-items: center; gap: 6px;
    }
    .nav-container > a:hover, .nav-dropdown:hover > a { color: var(--text); background: var(--bg2); }
    .nav-container > a[data-active="true"], .nav-dropdown > a[data-active="true"] {
      color: var(--text); background: var(--bg3);
    }
    .chevron { font-size: 12px; transition: transform 0.2s; opacity: 0.6; }
    .nav-dropdown:hover .chevron { transform: rotate(180deg); }

    /* Mega Menu */
    .mega-menu {
      position: absolute; top: 100%; left: 0; right: 0;
      background: var(--bg); border-bottom: 1px solid var(--border);
      box-shadow: 0 10px 30px rgba(0,0,0,0.3);
      display: none; z-index: 200; padding: 24px 0;
    }
    .nav-dropdown:hover .mega-menu { display: block; }
    .mega-menu-inner {
      max-width: 1200px; margin: 0 auto; padding: 0 24px;
      display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px;
    }

    /* Mega Card */
    .mega-card {
      display: flex; align-items: flex-start; gap: 16px;
      padding: 16px; border-radius: 12px; text-decoration: none !important;
      background: transparent; border: 1px solid transparent;
      transition: all 0.2s;
    }
    .mega-card:hover {
      background: var(--bg2); border-color: var(--border);
    }
    .mega-card[data-active="true"] {
      background: rgba(88,166,255,0.08); border-color: rgba(88,166,255,0.3);
    }
    .mega-card-icon {
      font-size: 20px; line-height: 1; filter: grayscale(1) opacity(0.7); transition: all 0.2s;
    }
    .mega-card:hover .mega-card-icon, .mega-card[data-active="true"] .mega-card-icon {
      filter: grayscale(0) opacity(1);
    }
    .mega-card-content { display: flex; flex-direction: column; gap: 4px; }
    .mega-card-title { color: var(--text); font-weight: 500; font-size: 15px; transition: color 0.2s; }
    .mega-card[data-active="true"] .mega-card-title { color: var(--accent); }
    .mega-card-desc { color: var(--text3); font-size: 13px; line-height: 1.4; }

    /* ── 背景效果 ── */
    body::before {
      content: '';
      position: fixed; inset: 0; z-index: 0;
      background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(88,166,255,0.12) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 80% 80%, rgba(188,140,255,0.08) 0%, transparent 50%);
      pointer-events: none;
    }

    .wrapper { position: relative; z-index: 1; max-width: 1280px; margin: 0 auto; padding: 0 24px 80px; }

    /* ── HERO ── */
    .hero {
      text-align: center;
      padding: 64px 0 48px;
    }
    .hero-badge {
      display: inline-flex; align-items: center; gap: 8px;
      background: rgba(88,166,255,0.1);
      border: 1px solid rgba(88,166,255,0.25);
      border-radius: 24px;
      padding: 6px 16px;
      font-size: 12px; font-weight: 600; letter-spacing: 0.08em;
      color: var(--accent); text-transform: uppercase;
      margin-bottom: 24px;
    }
    .hero-badge-dot { width:6px; height:6px; border-radius:50%; background:var(--green); animation: pulse 2s ease-in-out infinite; }
    @keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.6;transform:scale(0.8)} }

    .hero h1 {
      font-size: clamp(2rem, 5vw, 3.5rem);
      font-weight: 800;
      line-height: 1.1;
      background: linear-gradient(135deg, #fff 30%, #79c0ff 70%);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent;
      margin-bottom: 16px;
    }
    .hero p {
      color: var(--text2); font-size: 16px; max-width: 560px; margin: 0 auto 32px; line-height: 1.6;
    }
    .hero-stats {
      display: flex; justify-content: center; gap: 40px; flex-wrap: wrap;
    }
    .stat { text-align: center; }
    .stat-num { font-size: 2rem; font-weight: 800; color: var(--accent); font-family: 'JetBrains Mono', monospace; }
    .stat-label { font-size: 12px; color: var(--text3); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.06em; }

    /* ── TOOLBAR ── */
    .toolbar {
      display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
      margin-bottom: 20px;
    }
    .search-box {
      display: flex; align-items: center; gap: 10px;
      background: var(--bg3); border: 1px solid var(--border);
      border-radius: 10px; padding: 10px 16px;
      flex: 1; max-width: 360px;
      transition: border-color .2s;
    }
    .search-box:focus-within { border-color: var(--accent); }
    .search-box svg { color: var(--text3); flex-shrink: 0; }
    .search-box input {
      background: none; border: none; outline: none;
      color: var(--text); font-size: 14px; width: 100%;
      font-family: inherit;
    }
    .search-box input::placeholder { color: var(--text3); }

    .filter-wrap { position: relative; }
    .filter-more-row { display: flex; gap: 8px; align-items: flex-start; flex-wrap: nowrap; }
    .filter-group {
      display: flex; gap: 8px; flex-wrap: wrap; flex: 1;
    }
    .filter-group .filter-btn.filter-hidden { display: none; }
    .filter-group.expanded .filter-btn.filter-hidden { display: inline-flex; }
    .filter-btn {
      display: inline-flex; align-items: center;
      padding: 8px 16px; border-radius: 8px; font-size: 13px; font-weight: 500;
      border: 1px solid var(--border); background: var(--bg3);
      color: var(--text2); cursor: pointer; transition: all .15s;
      font-family: inherit; text-decoration: none;
    }
    .filter-btn:hover { border-color: var(--accent); color: var(--accent); }
    .filter-btn.active { border-color: var(--accent); background: rgba(88,166,255,0.12); color: var(--accent); }
    .filter-more-btn {
      display: inline-flex; align-items: center; gap: 4px; flex-shrink: 0;
      padding: 8px 14px; border-radius: 8px; font-size: 13px; font-weight: 500;
      border: 1px solid var(--border); background: var(--bg3);
      color: var(--text3); cursor: pointer; transition: all .15s;
      font-family: inherit; white-space: nowrap;
    }
    .filter-more-btn:hover { border-color: var(--accent); color: var(--accent); }
    .filter-more-row { display: flex; gap: 8px; align-items: flex-start; margin-top: 0; }

    /* ── LAYOUT ── */
    .layout-container {
      display: flex; gap: 24px; align-items: flex-start;
    }
    .sidebar {
      width: 170px; flex-shrink: 0; position: sticky; top: 24px;
      max-height: calc(100vh - 48px); overflow-y: auto;
      padding-right: 12px;
    }
    .sidebar::-webkit-scrollbar { width: 4px; }
    .sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }
    .main-content {
      flex: 1; min-width: 0;
    }

    /* ── TABS ── */
    .tabs-wrapper { margin-bottom: 20px; }
    .tabs-scroll {
      display: flex; flex-direction: column; gap: 4px;
    }
    .tab-btn {
      display: block; text-decoration: none;
      background: none; border: none; padding: 8px 12px;
      color: #ffffff; font-size: 13px; font-weight: 500;
      cursor: pointer; position: relative; text-align: left;
      transition: all .15s; font-family: inherit; border-radius: 8px;
    }
    .tab-btn:hover { background: rgba(255,255,255,0.05); }
    .tab-btn.active { color: var(--accent); font-weight: 600; background: rgba(88,166,255,0.12); }

    /* ── PODIUM ── */
    .podium {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
      margin-bottom: 32px;
    }
    @media(max-width:640px) { .podium { grid-template-columns:1fr; } }

    .podium-card {
      background: var(--bg2); border: 1px solid var(--border);
      border-radius: 16px; padding: 24px 20px;
      position: relative; overflow: hidden;
      transition: transform .2s, border-color .2s;
    }
    .podium-card:hover { transform: translateY(-4px); }
    .podium-card.rank-1 { border-color: rgba(255,215,0,0.3); background: linear-gradient(135deg,rgba(255,215,0,0.05),transparent); }
    .podium-card.rank-2 { border-color: rgba(192,192,192,0.25); }
    .podium-card.rank-3 { border-color: rgba(205,127,50,0.25); }

    .podium-medal {
      font-size: 2rem; margin-bottom: 12px; display: block;
    }
    .podium-rank {
      font-size: 16px; font-weight: 700; letter-spacing: .05em;
      text-transform: uppercase; color: #ffffff; margin-bottom: 6px;
    }
    .podium-model {
      font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 4px;
      white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    }
    .podium-org {
      font-size: 12px; color: var(--text3); text-transform: uppercase; letter-spacing: .06em;
      margin-bottom: 16px;
    }
    .podium-score {
      font-size: 2.2rem; font-weight: 800; letter-spacing: -.02em;
      font-family: 'JetBrains Mono', monospace;
    }
    .rank-1 .podium-score { color: var(--gold); }
    .rank-2 .podium-score { color: var(--silver); }
    .rank-3 .podium-score { color: var(--bronze); }
    .podium-meta { font-size: 12px; color: var(--text3); margin-top: 8px; }

    /* ── TABLE ── */
    .top-scroll-wrap {
      overflow-x: auto; 
      scrollbar-width: thin;
      scrollbar-color: rgba(255,255,255,0.15) rgba(0,0,0,0.1);
      margin-bottom: 2px;
    }
    .top-scroll-wrap::-webkit-scrollbar { height: 8px; }
    .top-scroll-wrap::-webkit-scrollbar-track { background: rgba(0,0,0,0.1); border-radius: 4px; }
    .top-scroll-wrap::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 4px; }
    .top-scroll-wrap::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }
    .top-scroll-dummy { height: 1px; }

    .table-card {
      background: var(--bg2); border: 1px solid var(--border);
      border-radius: 16px; overflow: hidden;
    }
    .table-wrap { 
      overflow-x: auto; 
      scrollbar-width: thin;
      scrollbar-color: rgba(255,255,255,0.15) rgba(0,0,0,0.1);
    }
    .table-wrap::-webkit-scrollbar { height: 8px; }
    .table-wrap::-webkit-scrollbar-track { background: rgba(0,0,0,0.1); border-radius: 4px; }
    .table-wrap::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 4px; }
    .table-wrap::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }
    table { width: 100%; min-width: 850px; border-collapse: collapse; }
    thead th {
      padding: 14px 16px; font-size: 11px; font-weight: 600;
      text-transform: uppercase; letter-spacing: .08em;
      color: var(--text3); text-align: left;
      background: rgba(255,255,255,0.02);
      border-bottom: 1px solid var(--border);
      position: sticky; top: 0; backdrop-filter: blur(8px);
      white-space: nowrap; cursor: pointer;
      user-select: none;
    }
    thead th:hover { color: var(--accent); }
    thead th.sort-active { color: var(--accent); }

    tbody tr {
      border-bottom: 1px solid var(--border);
      transition: background .12s;
    }
    tbody tr:last-child { border-bottom: none; }
    tbody tr:hover { background: rgba(255,255,255,0.03); }
    tbody tr.hidden { display: none; }

    td {
      padding: 14px 16px; font-size: 14px;
      vertical-align: middle;
    }

    .td-rank {
      font-family: 'JetBrains Mono', monospace;
      font-size: 13px; font-weight: 600;
      color: #ffffff; width: 52px;
    }
    .td-rank .medal { font-size: 1.1rem; }

    .td-model { min-width: 220px; }
    .model-name { font-weight: 600; color: var(--text); margin-bottom: 3px; line-height: 1.3; }
    .model-org {
      display: inline-flex; align-items: center; gap: 5px;
      font-size: 11px; color: var(--text3); text-transform: uppercase; letter-spacing: .05em;
    }
    .org-dot {
      width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0;
    }

    .td-score {
      font-family: 'JetBrains Mono', monospace;
      font-weight: 700; font-size: 15px;
    }
    .score-ci {
      font-size: 11px; color: var(--text3); font-weight: 400; display: block; margin-top: 2px;
    }

    .td-votes { white-space: nowrap; }
    .votes-num { font-weight: 600; }
    .votes-label { font-size: 11px; color: var(--text3); }

    .license-tag {
      display: inline-block; padding: 3px 10px; border-radius: 20px;
      font-size: 11px; font-weight: 600; letter-spacing: .04em;
      border: 1px solid;
}
    .license-open { color: #3fb950; border-color: rgba(63,185,80,0.3); background: rgba(63,185,80,0.08); }
    .license-prop { color: var(--text3); border-color: var(--border); background: rgba(255,255,255,0.03); }
    .license-mit { color: var(--purple); border-color: rgba(188,140,255,0.3); background: rgba(188,140,255,0.08); }

    .td-score { min-width: 130px; }
    .score-main { font-size: 15px; font-weight: 700; }
    .score-ci-inline { font-size: 11px; color: var(--text3); margin-left: 4px; }
    .score-bar-wrap { height: 3px; background: rgba(255,255,255,0.06); border-radius: 2px; margin-top: 6px; }
    .score-bar { height: 3px; border-radius: 2px; transition: width .3s ease; }

    /* variance pill */
    .var-pill { display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; font-family: 'JetBrains Mono', monospace; border: 1px solid; white-space: nowrap; }
    .var-low  { color: #3fb950; border-color: rgba(63,185,80,0.3);  background: rgba(63,185,80,0.08); }
    .var-mid  { color: #d29922; border-color: rgba(210,153,34,0.3); background: rgba(210,153,34,0.08); }
    .var-high { color: #f85149; border-color: rgba(248,81,73,0.3);  background: rgba(248,81,73,0.08); }
    .var-dot  { width: 5px; height: 5px; border-radius: 50%; background: currentColor; flex-shrink: 0; }

    /* precise Elo */
    .td-precise { font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--text2); white-space: nowrap; }
    .ci-range { display: block; font-size: 10px; color: var(--text3); margin-top: 2px; }

    /* extra columns */
    .td-extra { font-family: 'JetBrains Mono', monospace; font-size: 13px; color: var(--text2); white-space: nowrap; }
    .td-price { font-size: 12px; color: var(--text2); white-space: nowrap; }
    .rank-spread { font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--text3); white-space: nowrap; }

    /* explain card */
    .explain-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 16px; padding: 24px 28px; margin-bottom: 28px; }
    .explain-title { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--text3); margin-bottom: 16px; }
    .explain-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
    .explain-item { display: flex; gap: 12px; align-items: flex-start; }
    .explain-icon { width: 32px; height: 32px; border-radius: 8px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 14px; }
    .explain-item h4 { font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 4px; }
    .explain-item p  { font-size: 12px; color: var(--text2); line-height: 1.6; }

    /* ── footer ── */
    .footer {
      text-align: center; padding: 48px 0 16px;
      color: var(--text3); font-size: 13px; line-height: 2;
    }
    .footer a { color: var(--accent); text-decoration: none; }
    .footer a:hover { text-decoration: underline; }

    /* no-result */
    .no-result {
      text-align: center; padding: 60px 20px; color: var(--text3);
      display: none;
    }
    .no-result.show { display: block; }
    .no-result-icon { font-size: 3rem; margin-bottom: 12px; }
    .no-result p { font-size: 15px; }
/* ── Tab 分组标题 ── */
.tab-group-sep {
  margin-top: 16px; padding: 4px 12px 6px;
  font-size: 11px; font-weight: 700; letter-spacing: .08em;
  color: var(--text3);
  pointer-events: none; user-select: none;
}

/* ── 日期导航（由 generate.py 注入到每个生成页面中） ── */
.date-nav {
  display: flex; align-items: center; justify-content: center;
  gap: 12px; margin: 0 0 32px; flex-wrap: wrap;
}
.date-nav-btn {
  padding: 8px 18px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg3); color: var(--text2); cursor: pointer;
  font-family: inherit; font-size: 13px; font-weight: 500; transition: all .15s;
}
.date-nav-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.date-nav-btn:disabled { opacity: .3; cursor: not-allowed; }
.date-select {
  background: var(--bg3); border: 1px solid var(--border); border-radius: 8px;
  color: var(--text); padding: 8px 14px; font-size: 13px; font-family: inherit; cursor: pointer;
}
.date-badge {
  font-size: 12px; color: var(--text3); padding: 6px 12px;
  background: rgba(255,255,255,0.04); border-radius: 8px; border: 1px solid var(--border);
}

/* ── 媒体模式（视频/图像）License Type 侧边栏 ── */
.sidebar-section-title {
  font-size: 12px; font-weight: 600; color: var(--text3);
  text-transform: uppercase; letter-spacing: 0.05em;
  padding: 16px 16px 8px; margin-bottom: 4px;
}
.license-filter-group { display: flex; flex-direction: column; }
.license-radio-label {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 16px; font-size: 14px; color: var(--text);
  cursor: pointer; border-radius: 6px; transition: background 0.15s;
}
.license-radio-label:hover { background: var(--hover); }
.license-radio-label input[type="radio"] { accent-color: var(--accent); width: 15px; height: 15px; }

/* ── 媒体模式表格：Overall Rank + Rank Spread 列 ── */
.td-overall-rank { text-align: center; font-size: 13px; color: var(--text2); min-width: 70px; }
.td-rank-spread  { text-align: center; font-size: 13px; color: var(--text2); min-width: 80px; white-space: nowrap; }