:root {
  --bg: #0f172a;          /* slate-900 */
  --bg-2: #0b1222;
  --surface: #1e293b;     /* slate-800 */
  --surface-2: #243349;
  --line: #334155;        /* slate-700 */
  --line-soft: #2a3a52;
  --ink: #f1f5f9;         /* slate-100 */
  --ink-2: #cbd5e1;       /* slate-300 */
  --muted: #94a3b8;       /* slate-400 */
  --teal: #2dd4bf;        /* teal-400 */
  --teal-2: #14b8a6;      /* teal-500 */
  --teal-3: #0d9488;      /* teal-600 */
  --good: #34d399;
  --mid: #fbbf24;
  --bad: #f87171;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 12px 32px rgba(0,0,0,.28);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(1100px 480px at 78% -8%, rgba(20,184,166,.14), transparent 60%),
    radial-gradient(900px 420px at 8% -12%, rgba(45,212,191,.10), transparent 55%),
    var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.wrap { width: min(1160px, 92vw); margin: 0 auto; }
.accent { color: var(--teal); }
.accent2 { color: #7dd3fc; }

/* 导航栏（移植自首页 ai47api.com 军火库风格） */
.navbar {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(10, 14, 20, .85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid #1e2a38;
}
.navbar .container {
  width: min(1160px, 92vw); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; height: 64px;
}
.nav-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-icon { font-size: 26px; color: #00ff88; }
.logo-text { font-size: 22px; font-weight: 800; letter-spacing: 2px; color: #fff;
  font-family: "SF Mono", "Fira Code", "Consolas", monospace; }
.logo-text .accent { color: #00ff88; }
.logo-tag { font-size: 12px; color: #8b9bb4; background: #111820;
  padding: 4px 10px; border-radius: 4px; border: 1px solid #1e2a38; }
.nav-links { display: flex; list-style: none; gap: 34px; }
.nav-links a { color: #8b9bb4; text-decoration: none; font-size: 14px; font-weight: 500;
  letter-spacing: 1px; text-transform: uppercase; transition: all .3s; position: relative; }
.nav-links a::after { content: ""; position: absolute; bottom: -8px; left: 0;
  width: 0; height: 2px; background: #00ff88; transition: width .3s; }
.nav-links a:hover, .nav-links a.active { color: #00ff88; }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
@media (max-width: 680px) { .nav-links { gap: 16px; } .logo-tag { display: none; } }

/* Hero */
.hero { padding: 56px 0 30px; }
.hero-tag { display: inline-block; font-size: .72rem; letter-spacing: 3px; color: var(--teal); border: 1px solid rgba(20,184,166,.3); padding: 4px 12px; border-radius: 999px; margin-bottom: 18px; }
.hero h1 { font-size: clamp(1.7rem, 4vw, 2.6rem); letter-spacing: -.6px; line-height: 1.2; }
.hero p { color: var(--muted); margin-top: 12px; max-width: 720px; }
.hero strong { color: var(--teal); font-weight: 600; }
.hero-logic { font-size: .86rem; color: var(--ink-2); margin-top: 10px;
  border-left: 2px solid var(--teal-3); padding-left: 12px; }

/* 官方首选卡（置顶） */
.card.featured {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(20,184,166,.14), rgba(15,23,42,.6));
  border: 1px solid rgba(45,212,191,.5);
  box-shadow: 0 0 0 1px rgba(45,212,191,.25), 0 14px 40px rgba(13,148,136,.22);
  margin-bottom: 16px;
}
.featured-badge {
  display: inline-block; align-self: flex-start;
  font-size: .76rem; font-weight: 800; letter-spacing: .5px;
  color: #06241f; background: var(--teal); padding: 4px 12px;
  border-radius: 999px; margin-bottom: 12px;
}
.featured-desc { color: var(--ink-2); font-size: .9rem; margin: 2px 0 12px; }
.card.featured .card-title { font-size: 1.25rem; }

/* 控制条 */
.controls {
  position: sticky; top: 64px; z-index: 20;
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
  padding: 14px 0;
  background: linear-gradient(var(--bg) 70%, transparent);
}
#search {
  flex: 1 1 240px; min-width: 180px;
  padding: 11px 15px; font-size: .95rem;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--surface); color: var(--ink);
}
#search::placeholder { color: var(--muted); }
#search:focus { outline: none; border-color: var(--teal-3); box-shadow: 0 0 0 3px rgba(20,184,166,.18); }
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1px solid var(--line); background: var(--surface); color: var(--muted);
  padding: 8px 14px; border-radius: 999px; font-size: .85rem; cursor: pointer;
  transition: all .15s; text-transform: lowercase;
}
.chip:hover { border-color: var(--teal-3); color: var(--teal); }
.chip.active { background: var(--teal-2); border-color: var(--teal-2); color: #06241f; font-weight: 700; }
#sort {
  padding: 10px 13px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--surface); color: var(--ink); font-size: .9rem; cursor: pointer;
}

/* 卡片网格 */
.grid {
  display: grid; gap: 16px; padding: 10px 0 56px;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
}
.card {
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  border: 1px solid var(--line-soft); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px; display: flex; flex-direction: column;
  transition: transform .15s, border-color .15s, box-shadow .15s;
}
.card:hover { transform: translateY(-3px); border-color: var(--teal-3); box-shadow: 0 0 0 1px rgba(20,184,166,.25), var(--shadow); }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.card-title { font-size: 1.1rem; font-weight: 700; word-break: break-all; color: var(--ink); }
.visit { white-space: nowrap; font-size: .82rem; font-weight: 700; color: var(--teal); text-decoration: none; }
.visit:hover { text-decoration: underline; }

/* 统计区 */
.stats { display: flex; gap: 14px; padding: 10px 0 4px; border-top: 1px solid var(--line-soft); }
.stats.no-stat { color: var(--muted); font-size: .82rem; padding: 12px 0 6px; }
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat-label { font-size: .72rem; color: var(--muted); }
.stat-val { font-size: 1.02rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.stat-val.good { color: var(--good); }
.stat-val.mid { color: var(--mid); }
.stat-val.bad { color: var(--bad); }
.stat-val.muted { color: var(--ink-2); }
.stat-val.radar { color: var(--teal); }
.bar { height: 4px; border-radius: 4px; background: var(--line); overflow: hidden; margin: 8px 0 2px; }
.bar span { display: block; height: 100%; border-radius: 4px; }
.bar span.good { background: var(--good); }
.bar span.mid { background: var(--mid); }
.bar span.bad { background: var(--bad); }

/* 模型列表 */
.models { list-style: none; display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.model { display: flex; align-items: center; gap: 10px; transition: opacity .15s; }
.model.dim { opacity: .3; }
.badge {
  flex: 0 0 auto; min-width: 66px; text-align: center;
  font-size: .76rem; font-weight: 700; padding: 3px 8px; border-radius: 6px;
  background: #2a3a52; color: var(--ink-2); text-transform: lowercase;
}
.badge-openai   { background: rgba(52,211,153,.16); color: #6ee7b7; }
.badge-claude   { background: rgba(251,146,60,.16); color: #fdba74; }
.badge-gemini   { background: rgba(96,165,250,.16); color: #93c5fd; }
.badge-deepseek { background: rgba(167,139,250,.18); color: #c4b5fd; }
.badge-reverse  { background: rgba(148,163,184,.16); color: #cbd5e1; }
.price { flex: 0 0 auto; font-weight: 800; font-variant-numeric: tabular-nums; color: var(--ink); }
.desc {
  flex: 1 1 auto; min-width: 0; color: var(--muted); font-size: .82rem;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.empty { text-align: center; color: var(--muted); padding: 64px 0; }

/* 页脚 */
.footer { border-top: 1px solid var(--line-soft); padding: 30px 0; margin-top: 10px; }
.footer p { color: var(--muted); font-size: .84rem; }
.footer .muted { margin-top: 4px; font-size: .8rem; opacity: .85; }

@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
  .controls { top: 64px; }
}