:root{
  --bg:#f4f6f8; --card:#ffffff; --ink:#16283a; --sub:#5b6b7a;
  --navy:#123a5e; --navy2:#0d2a45; --accent:#e8833a; --accent2:#d46f26; --line:#e3e8ee;
  --gold:#ffd9b8; --red:#e0393b;
  --mono:Consolas,Menlo,"SF Mono",ui-monospace,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}

.wrap{max-width:1120px;margin:0 auto;padding:0 22px}

/* ===== 顶栏（对齐主站 header.nav）===== */
header.nav{position:sticky;top:0;z-index:50;background:rgba(13,42,69,.96);color:#fff;backdrop-filter:blur(6px);
  box-shadow:0 2px 14px rgba(18,58,94,.10)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:58px;gap:14px}
.brand{font-weight:900;font-size:22px;letter-spacing:1px;white-space:nowrap;line-height:1.2}
.brand-logo{color:#ffd9b8;letter-spacing:2px;text-shadow:0 0 18px rgba(232,131,58,.45);font-size:24px}
.brand small{font-weight:400;font-size:12px;color:#a8c0d8;margin-left:10px}
.nav-right{display:flex;align-items:center;gap:20px}
.nav-links{display:flex;gap:20px}
.nav-links a{font-size:14px;color:#dbe6f0;transition:color .2s}
.nav-links a:hover{color:#ffd9b8}
.btn{padding:9px 18px;border-radius:8px;font-size:14px;font-weight:600;transition:.2s;border:none;cursor:pointer;
  font-family:inherit;display:inline-block}
.btn.primary{background:var(--accent);color:#fff}
.btn.primary:hover{background:var(--accent2)}
.btn.ghost{border:1px solid rgba(255,255,255,.6);color:#fff;background:transparent}
.btn.ghost:hover{background:rgba(255,255,255,.12)}

/* ===== Hero（对齐主站 .hero）===== */
.hero{background:linear-gradient(150deg,#0d2a45 0%,#123a5e 55%,#1a4a78 100%);color:#fff;padding:56px 0 52px;
  position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-80px;top:-80px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(232,131,58,.35),transparent 70%)}
.hero .wrap{position:relative;z-index:2}
.hero-tag{display:inline-block;font-size:13px;letter-spacing:2px;color:#ffd9b8;border:1px solid rgba(255,217,184,.5);
  padding:6px 16px;border-radius:40px;margin-bottom:20px}
.hero h1{font-size:clamp(30px,5.4vw,46px);font-weight:800;letter-spacing:1px}
.hero .sub{font-size:clamp(15px,2.4vw,19px);color:#cfe0ef;margin-top:10px;font-weight:500}
.hero .intro{max-width:760px;margin-top:18px;font-size:15.5px;color:#e3eef8;line-height:1.9}
.hero-stats{display:flex;gap:32px;margin-top:28px;flex-wrap:wrap}
.hs b{display:block;font-size:26px;color:#ffd9b8;font-weight:800;letter-spacing:1px}
.hs span{font-size:13px;color:#a8c0d8}

/* ===== 章节 ===== */
section{padding:52px 0}
.sec-head{margin-bottom:26px}
.sec-head .en{font-size:13px;letter-spacing:3px;color:var(--accent);font-weight:700;text-transform:uppercase}
.sec-head h2{font-size:clamp(22px,3.6vw,30px);font-weight:800;margin-top:6px;color:var(--navy2)}
.sec-head p{color:var(--sub);margin-top:8px;font-size:15px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px 26px;margin-bottom:18px;
  box-shadow:0 4px 16px rgba(18,58,94,.06)}
.card.dim{background:var(--card)}

/* 模型卡 */
.mhead{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.rank{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-weight:800;font-size:19px;
  background:linear-gradient(135deg,#1a4a78,#2a5f8f);color:#ffd9b8;flex:none}
.rank.r1{background:linear-gradient(135deg,#e8833a,#f0a25e);color:#fff}
.rank.r2{background:linear-gradient(135deg,#123a5e,#1a4a78);color:#ffd9b8}
.rank.r3{background:linear-gradient(135deg,#4a6a86,#7b8fa6);color:#fff}
.mname{font-size:23px;font-weight:800;color:var(--navy2);letter-spacing:.3px}
.mprov{color:var(--sub);font-size:13.5px}
.score{text-align:right}
.score b{font-size:26px;color:var(--navy);font-family:var(--mono)}
.score span{display:block;font-size:12px;color:var(--sub)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin:16px 0}
.kv{background:#f6f8fb;border:1px solid var(--line);border-radius:10px;padding:11px 13px}
.kv i{display:block;font-style:normal;font-size:11.5px;color:var(--sub);letter-spacing:.05em}
.kv b{font-size:14.5px;font-weight:700;color:var(--navy2)}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 0}
.tag{font-size:12px;color:var(--accent);border:1px solid var(--accent);border-radius:30px;padding:2px 12px}
.tag.navy{color:var(--navy);border-color:#b9cde0}
.repo{display:flex;align-items:center;gap:14px;background:#f0f6fb;border:1px dashed #c2d6e8;border-radius:12px;
  padding:14px 16px;flex-wrap:wrap}
.repo .lbl{font-size:11.5px;color:var(--sub);letter-spacing:.06em}
.repo a{color:var(--navy);font-family:var(--mono);font-size:14.5px;word-break:break-all;font-weight:600}
.repo a:hover{color:var(--accent2);text-decoration:underline}
.rstat{font-size:12.5px;color:var(--sub)}
.rstat b{color:var(--navy2)}
ul{margin:8px 0 0 20px}
li{margin:5px 0;color:#33546f;font-size:14.5px}
li.warn{color:#a5561d}
h4{font-size:13px;color:var(--navy);letter-spacing:.08em;text-transform:uppercase;margin:22px 0 8px;font-weight:800}

/* 表格 */
table{width:100%;border-collapse:collapse;font-size:13.5px;margin-top:8px}
th,td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--navy);font-weight:800;font-size:12px;letter-spacing:.06em;text-transform:uppercase;background:#eef2f6;
  white-space:nowrap}
th:first-child{border-radius:8px 0 0 8px}
th:last-child{border-radius:0 8px 8px 0}
tbody tr:hover td{background:#f7fafd}
td.num{font-family:var(--mono);color:var(--navy2);white-space:nowrap}
tr.best td{background:rgba(232,131,58,.07)}
.pill{display:inline-block;font-size:11px;padding:1px 9px;border-radius:30px;border:1px solid #c9d6e4;color:var(--sub)}
.pill.ok{background:rgba(232,131,58,.10);border-color:rgba(232,131,58,.5);color:#b45f14;font-weight:600}
.pill.warn{background:rgba(224,57,59,.08);border-color:rgba(224,57,59,.45);color:#b3232a;font-weight:600}
.pill.stale{background:#f2f4f7;border-color:#c9d6e4;color:var(--sub)}
pre{background:#0d2a45;border:1px solid #24456b;border-radius:10px;padding:13px 15px;overflow-x:auto;
  font-family:var(--mono);font-size:12.5px;color:#dbe6f0;margin-top:8px}
pre::before{content:"$ ";color:var(--accent)}
.notice{background:#fff8f0;border:1px solid #f2ddc4;border-left:3px solid var(--accent);border-radius:0 10px 10px 0;
  padding:13px 16px;color:#7a5230;font-size:13.5px;margin-top:12px}

/* 24 小时要闻列表 */
.nl{list-style:none}
.nl-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line)}
.nl-item:last-child{border-bottom:none}
.nl-num{flex:0 0 auto;font-family:var(--mono);font-size:13px;font-weight:700;color:var(--accent);
  background:rgba(232,131,58,.10);border-radius:8px;padding:2px 8px;height:fit-content}
.nl-body{flex:1 1 auto;min-width:0}
.nl-title{font-weight:650;font-size:15.5px;color:var(--ink);line-height:1.55}
.nl-title:hover{color:var(--accent2)}
.nl-sum{font-size:13.5px;color:var(--sub);line-height:1.75;margin-top:5px}
.nl-meta{display:flex;flex-wrap:wrap;gap:9px;align-items:center;margin-top:8px;font-size:12px;color:var(--sub)}
.nl-src{font-weight:650;color:#33546f}
.nl-meta .pill.tag{background:#f4f6f8;border-color:#dde4ec;color:#5b6b7a}
.nl-link{margin-left:auto;color:var(--accent2);font-weight:600;white-space:nowrap}
.nl-link:hover{text-decoration:underline}

/* 深色区块（与主站 .ai-main / .tq 呼应） */
.dark{background:linear-gradient(150deg,#0d2a45,#123a5e 70%,#1a4a78);color:#fff;position:relative;overflow:hidden;
  border-radius:16px;padding:34px 28px;margin-top:20px}
.dark::before{content:"LLM";position:absolute;right:-20px;top:50%;transform:translateY(-50%);
  font-size:clamp(90px,16vw,180px);font-weight:900;color:rgba(255,255,255,.045);letter-spacing:4px;line-height:1}
.dark .sec-head h2{color:#fff}
.dark .sec-head .en{color:#ffd9b8}
.dark .sec-head p{color:#a8c0d8}
.dark .card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);box-shadow:none}
.dark .mname,.dark .kv b,.dark .rstat b{color:#fff}
.dark .kv{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.14)}
.dark .kv i,.dark .mprov,.dark .score span{color:#a8c0d8}
.dark .score b{color:#ffd9b8}
.dark li{color:#e3eef8}
.dark li.warn{color:#ffc79a}
.dark table th{background:rgba(255,255,255,.08);color:#ffd9b8}
.dark table th,td{border-color:rgba(255,255,255,.14)}
.dark tbody tr:hover td{background:rgba(255,255,255,.05)}
.dark tr.best td{background:rgba(232,131,58,.14)}
.dark .repo{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.22)}
.dark .repo a{color:#ffd9b8}
.dark .notice{background:rgba(255,255,255,.06);border-color:rgba(255,217,184,.4);color:#e3eef8}
.dark .card, .dark .sec-head, .dark table, .dark ul{position:relative;z-index:1}

footer{padding:24px 0;background:var(--navy2);color:#9fb4c8;font-size:13px;text-align:center;margin-top:20px}
footer span{display:block}
footer b{color:#dbe6f0}
footer a{color:#8ea8bf}
footer a:hover{color:#ffd9b8}
footer .eg-foot{display:block;margin-top:6px;font-size:12px;color:#6b8199;letter-spacing:2px}

@media(max-width:860px){
  .nav-links{display:none}
  .hero{padding:44px 0 40px}
  section{padding:38px 0}
  .hero-stats{gap:20px}
  .hs b{font-size:22px}
  .score{text-align:left}
  .card{padding:20px 18px}
  .dark{padding:24px 18px}
  table{font-size:12.5px}
  th,td{padding:9px 8px}
}