/* 机场通 · 设计系统 v2「航线图」
   深海军蓝 + 青绿强调色 + 纸面灰底；内容放在白色「纸张」里；标题前有方形航点标记。 */
:root{
  --ink:#0b1f33;--ink-2:#2c4560;--muted:#66788c;--line:#dce3ea;--paper:#f3f5f8;--sheet:#ffffff;
  --teal:#0f8b7d;--teal-d:#0a6b60;--teal-t:#e7f4f2;--amber:#b86e0b;--amber-t:#fdf3e2;--red:#b93a32;--red-t:#fbeceb;--green:#167a52;--green-t:#e6f4ed;
  /* 兼容旧组件 */
  --fg:var(--ink);--card:#f7f9fb;--card-2:#eef2f6;--link:var(--teal-d);--ok:var(--green);--warn:var(--amber);--danger:var(--red);
  --warn-bg:var(--amber-t);--ok-bg:var(--green-t);--danger-bg:var(--red-t);--info-bg:var(--teal-t);
  --r:10px;--max:1160px;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--paper);line-height:1.8;font-size:16px}
a{color:var(--teal-d);text-decoration:none;text-underline-offset:3px}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
.container{max-width:var(--max);margin:0 auto;padding:0 18px}
.sr{position:absolute;left:-9999px}
.mono{font-family:var(--mono)}

/* ---------- 顶栏：深蓝实色 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:var(--ink);color:#fff;box-shadow:0 1px 0 rgba(255,255,255,.06)}
.nav{display:flex;align-items:center;height:58px;gap:20px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:18px;color:#fff;white-space:nowrap;letter-spacing:.02em}
.brand:hover{text-decoration:none;color:#fff}
.brand .logo{width:30px;height:30px;display:grid;place-items:center;flex:none}
.brand .logo svg{display:block}
.brand small{font-weight:500;font-size:11px;color:#8fb3c9;letter-spacing:.06em;margin-left:2px}
.nav-links{display:flex;gap:2px;margin:0;padding:0;list-style:none;flex:1;justify-content:flex-end}
.nav-links a{display:block;color:#c9d6e3;font-size:13.5px;font-weight:500;padding:6px 9px;border-radius:6px;white-space:nowrap}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.07);text-decoration:none}
.nav-links a[aria-current]{color:#fff;background:rgba(15,139,125,.35)}
.nav-cta{background:var(--teal);color:#fff;padding:7px 13px;border-radius:7px;font-size:13px;font-weight:700;white-space:nowrap}
.nav-cta:hover{background:#12a091;text-decoration:none;color:#fff}
.nav-toggle{display:none;background:transparent;color:#fff;border:1px solid rgba(255,255,255,.25);border-radius:7px;padding:5px 11px;font-size:14px;margin-left:auto;cursor:pointer}
@media (max-width:1080px){.nav-cta{display:none}.nav-links a{padding:6px 7px;font-size:13px}}
@media (max-width:900px){
  .nav-toggle{display:block}
  .nav-links{display:none;position:absolute;left:0;right:0;top:58px;background:var(--ink);flex-direction:column;gap:0;padding:6px 18px 14px;border-top:1px solid rgba(255,255,255,.08)}
  .nav-links.open{display:flex}
  .nav-links a{padding:11px 4px;border-bottom:1px solid rgba(255,255,255,.07);border-radius:0;font-size:15px}
  .brand small{display:none}
}
.hot-bar{display:none}

/* ---------- 首页横幅：深蓝色带 + 右侧数据看板 ---------- */
.hero-band{background:linear-gradient(160deg,#0b1f33 0%,#10304a 70%,#0f3f4a 100%);color:#e8eef4;position:relative;overflow:hidden}
.hero-band::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.08) 1px,transparent 0);background-size:22px 22px;pointer-events:none}
.hero{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:34px;padding:52px 18px 48px;position:relative}
@media (max-width:900px){.hero{grid-template-columns:1fr;padding:34px 18px}}
.hero .eyebrow{font-size:12.5px;color:#7fd6c9;margin-bottom:12px;letter-spacing:.06em}
.hero h1{font-size:clamp(28px,4.4vw,46px);line-height:1.2;margin:0 0 16px;font-weight:800;color:#fff;letter-spacing:-.01em}
.hero p.lead{font-size:16.5px;color:#c4d3e1;margin:0 0 22px;max-width:640px}
.hero .chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:20px}
.hero .chips a{font-size:12.5px;color:#d7e4ef;border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:4px 11px}
.hero .chips a:hover{background:rgba(255,255,255,.08);text-decoration:none}
.board{background:rgba(6,18,31,.55);border:1px solid rgba(127,214,201,.25);border-radius:12px;padding:16px 18px;align-self:start;backdrop-filter:blur(4px)}
.board h2{font-size:12px;letter-spacing:.1em;color:#7fd6c9;margin:0 0 12px;font-weight:600}
.board-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:14px}
.board-metrics div{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:8px;padding:9px 10px}
.board-metrics small{display:block;font-size:11px;color:#8ea6bc}
.board-metrics b{font-family:var(--mono);font-size:19px;color:#fff}
.board ol{list-style:none;margin:0;padding:0}
.board li{display:grid;grid-template-columns:26px 1fr auto;gap:8px;align-items:center;padding:8px 0;border-top:1px dashed rgba(255,255,255,.12);font-size:14px}
.board li .n{font-family:var(--mono);color:#7fd6c9;font-weight:700}
.board li a{color:#fff;font-weight:600}
.board li small{color:#8ea6bc;font-size:12px;display:block;line-height:1.4}
.board li .s{font-family:var(--mono);font-weight:700;color:#fff;background:rgba(15,139,125,.45);border-radius:6px;padding:1px 7px}
.board .note{font-size:11.5px;color:#8ea6bc;margin:10px 0 0}
.hero-band .btn{border-color:rgba(255,255,255,.4);color:#fff;background:transparent}
.hero-band .btn:hover{background:rgba(255,255,255,.08)}
.hero-band .btn-primary{background:var(--teal);border-color:var(--teal)}
.hero-band .btn-primary:hover{background:#12a091}
/* 旧版 hero（非首页仍可能用到） */
.stats{display:flex;gap:28px;margin-top:22px;flex-wrap:wrap}
.stats div small{display:block;color:var(--muted);font-size:12px}
.stats div strong{font-size:20px;font-weight:800;font-family:var(--mono)}

/* ---------- 按钮与标记 ---------- */
.btn-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 18px;border-radius:8px;font-weight:700;font-size:14px;border:1.5px solid var(--ink);color:var(--ink);background:#fff;cursor:pointer;line-height:1.3}
.btn:hover{text-decoration:none;background:var(--card-2)}
.btn-primary{background:var(--teal);border-color:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-d);border-color:var(--teal-d);color:#fff}
.btn-sm{padding:6px 12px;font-size:13px;border-width:1px}
.badge{display:inline-block;font-size:11px;font-weight:700;padding:1px 7px;border-radius:4px;background:var(--amber);color:#fff;vertical-align:middle;letter-spacing:.02em}
.badge.soft{background:var(--card-2);color:var(--ink-2)}
.badge.ok{background:var(--green-t);color:var(--green)}
.badge.warn{background:var(--amber-t);color:var(--amber)}
.badge.danger{background:var(--red-t);color:var(--red)}
.coupon{display:inline-flex;align-items:center;gap:6px;font-size:12px;background:var(--amber-t);border:1px dashed #e0b56a;border-radius:6px;padding:3px 9px;cursor:pointer;color:var(--ink)}
.coupon code{font-weight:800;font-family:var(--mono);background:none}

/* ---------- 分区 ---------- */
.section{padding:40px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:20px;border-bottom:2px solid var(--ink);padding-bottom:12px}
.section-head .eyebrow{font-size:12px;color:var(--teal-d);font-family:var(--mono);letter-spacing:.08em;margin-bottom:4px;font-weight:700}
.section-head h2{font-size:clamp(22px,3vw,30px);margin:0;font-weight:800;line-height:1.3}
.section-head p{margin:6px 0 0;color:var(--muted);font-size:14.5px}
.section-head .more{white-space:nowrap;font-size:14px;font-weight:700}
.grid{display:grid;gap:14px}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:900px){.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.grid-3,.grid-2{grid-template-columns:1fr}}
.card{background:var(--sheet);border:1px solid var(--line);border-left:3px solid var(--teal);border-radius:var(--r);padding:18px 18px 16px}
.card h3{margin:0 0 6px;font-size:16.5px;font-weight:800}
.card p{margin:0;color:var(--ink-2);font-size:14px;line-height:1.75}
.card .num{font-size:12px;color:var(--teal-d);font-family:var(--mono);font-weight:700;margin-bottom:6px}
.card.link{display:block;color:var(--ink);transition:border-color .15s,transform .15s}
.card.link:hover{text-decoration:none;border-left-color:var(--amber);transform:translateX(2px)}
.card .arrow{display:inline-block;margin-top:10px;font-size:13px;font-weight:700;color:var(--teal-d)}
.steps{counter-reset:st}
.steps .card{position:relative;padding-left:58px;border-left-width:1px}
.steps .card .step{position:absolute;left:14px;top:16px;width:32px;height:32px;border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;font-size:0}
.steps .card .step::after{counter-increment:st;content:counter(st);font-size:14px;font-weight:800;font-family:var(--mono)}

/* ---------- 排名卡：横向记分卡 ---------- */
.rank-card{background:var(--sheet);border:1px solid var(--line);border-radius:var(--r);padding:0;display:grid;grid-template-columns:76px minmax(0,1fr);overflow:hidden;position:relative}
.rank-card.top{box-shadow:0 0 0 2px var(--teal)}
.rank-head{display:contents}
.rank-no{grid-row:1/span 6;background:var(--ink);color:#7fd6c9;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding-top:16px;font-family:var(--mono);font-weight:800;font-size:22px;border-right:4px solid var(--brand,var(--teal))}
.rank-no::before{content:"No.";font-size:10px;color:#8ea6bc;letter-spacing:.08em}
.rank-title{padding:14px 16px 0}
.rank-title .rc-h,.rank-title h3{margin:0;font-size:18px;font-weight:800;display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.rank-title .rc-h a,.rank-title h3 a{color:var(--ink)}
.rank-title .sub{font-size:13px;color:var(--muted);margin-top:2px;line-height:1.5}
.score{position:absolute;right:14px;top:12px;text-align:center;background:var(--teal-t);border-radius:8px;padding:4px 10px}
.score strong{font-size:22px;font-weight:800;line-height:1.1;font-family:var(--mono);color:var(--teal-d)}
.score small{display:block;font-size:10px;color:var(--muted)}
.rank-title{padding-right:96px}
.rank-card p.summary{margin:8px 16px 0;font-size:14px;color:var(--ink-2);line-height:1.7}
.specs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);margin:12px 16px 0;border:1px solid var(--line);border-radius:8px;overflow:hidden;font-size:12.5px}
.specs div{background:#fbfcfd;padding:7px 9px}
.specs div small{display:block;color:var(--muted);font-size:10.5px}
.specs div span{font-weight:700}
@media (max-width:600px){.specs{grid-template-columns:repeat(2,minmax(0,1fr))}.rank-card{grid-template-columns:54px minmax(0,1fr)}.rank-no{font-size:18px}}
.rank-card .fit{font-size:13px;color:var(--ink-2);margin:10px 16px 0}
.rank-card .actions{display:flex;gap:8px;flex-wrap:wrap;margin:12px 16px 16px;align-items:center}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);margin:18px 0;background:#fff}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--ink);color:#e8eef4;font-weight:700;font-size:12.5px;white-space:nowrap;letter-spacing:.02em}
tbody tr:nth-child(even) td{background:#f8fafc}
tr:last-child td{border-bottom:0}
td.num{font-variant-numeric:tabular-nums;white-space:nowrap;font-family:var(--mono);font-size:13px}
.article .table-wrap{margin:16px 0}

/* ---------- 文章列表 ---------- */
.post-list{display:grid;gap:10px}
.post-item{display:grid;grid-template-columns:104px minmax(0,1fr);gap:16px;align-items:baseline;padding:14px 16px;background:var(--sheet);border:1px solid var(--line);border-radius:var(--r)}
.post-item time{font-size:12.5px;color:var(--muted);font-family:var(--mono)}
.post-item .cat{font-size:11px;color:#fff;background:var(--ink-2);border-radius:4px;padding:1px 6px;margin-right:8px;vertical-align:2px}
.post-item a{color:var(--ink);font-weight:700;font-size:16px}
.post-item p{margin:4px 0 0;font-size:13.5px;color:var(--muted);line-height:1.65}
@media (max-width:600px){.post-item{grid-template-columns:1fr;gap:2px}}

/* ---------- 文章页：白色纸张 ---------- */
.breadcrumb{font-size:12.5px;color:var(--muted);padding:16px 18px 0}
.breadcrumb ol{list-style:none;margin:0;padding:0;display:flex;gap:6px;flex-wrap:wrap}
.breadcrumb li+li::before{content:"/";margin-right:6px;color:#a9b6c3}
.breadcrumb a{color:var(--muted)}
.article-head{padding:14px 18px 22px}
.article-head h1{font-size:clamp(25px,3.8vw,38px);line-height:1.28;margin:0 0 12px;font-weight:800;max-width:900px}
.article-head .meta{font-size:12.5px;color:var(--muted);display:flex;gap:6px 16px;flex-wrap:wrap;font-family:var(--mono)}
.article-head .meta b{color:var(--ink);font-family:var(--font)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:28px;padding:0 18px 56px;align-items:start}
@media (max-width:980px){.article-layout{grid-template-columns:1fr}}
.article{min-width:0;font-size:16px;background:var(--sheet);border:1px solid var(--line);border-radius:12px;padding:28px 32px}
@media (max-width:600px){.article{padding:20px 16px;border-radius:0;border-left:0;border-right:0;margin:0 -18px}}
.section .article-layout{padding:0}
.article h2{font-size:23px;margin:38px 0 14px;font-weight:800;scroll-margin-top:76px;line-height:1.4;display:flex;gap:10px;align-items:baseline}
.article h2::before{content:"";flex:none;width:9px;height:9px;background:var(--teal);transform:translateY(-3px) rotate(45deg)}
.article > h2:first-child,.article > .toc-mobile + h2{margin-top:8px}
.article h3{font-size:18px;margin:26px 0 10px;font-weight:800;scroll-margin-top:76px;color:var(--ink-2)}
.article p{margin:0 0 16px}
.article ul,.article ol{padding-left:22px;margin:0 0 16px}
.article li{margin:5px 0}
.article li::marker{color:var(--teal)}
.article code{background:var(--card-2);padding:1px 6px;border-radius:5px;font-size:13.5px;font-family:var(--mono)}
.article pre{background:var(--ink);color:#d7e4ef;padding:14px 16px;border-radius:9px;overflow-x:auto;font-size:13.5px}
.article pre code{background:none;color:inherit;padding:0}
.callout{background:#fff;border:1px solid var(--line);border-left:4px solid var(--teal);border-radius:8px;padding:14px 18px;margin:18px 0;font-size:15px}
.callout>strong{display:inline-block;margin-bottom:6px;font-size:12px;letter-spacing:.08em;color:#fff;background:var(--teal);padding:1px 8px;border-radius:4px}
.callout p{margin:0 0 8px}
.callout p:last-child,.callout ul:last-child{margin-bottom:0}
.callout-warn{border-left-color:var(--amber);background:#fffdf8}
.callout-warn>strong{background:var(--amber)}
.callout-ok{border-left-color:var(--green);background:#f9fdfb}
.callout-ok>strong{background:var(--green)}
.callout-danger{border-left-color:var(--red)}
.callout-danger>strong{background:var(--red)}
.toc{position:sticky;top:74px;font-size:13px;background:var(--sheet);border:1px solid var(--line);border-radius:12px;padding:14px 12px;max-height:calc(100vh - 96px);overflow:auto}
.toc .toc-title{font-weight:800;margin:0 4px 8px;font-size:12px;color:var(--teal-d);letter-spacing:.1em;font-family:var(--mono)}
.toc ol{list-style:none;margin:0;padding:0;counter-reset:tc}
.toc li a{display:block;padding:5px 6px;color:var(--ink-2);border-radius:6px;line-height:1.45}
.toc li.h2 a::before{counter-increment:tc;content:counter(tc,decimal-leading-zero) " ";font-family:var(--mono);color:var(--muted);font-size:11px}
.toc li a:hover,.toc li a.active{background:var(--teal-t);color:var(--teal-d);text-decoration:none}
.toc li.h3 a{padding-left:24px;font-size:12px;color:var(--muted)}
.toc-mobile{display:none;margin:0 0 20px;border:1px solid var(--line);border-radius:8px;padding:10px 14px;background:var(--card)}
@media (max-width:980px){.toc{display:none}.toc-mobile{display:block}}
.toc-mobile summary{cursor:pointer;font-weight:700;font-size:14px}
.toc-mobile ol{margin:8px 0 0 18px;padding:0;font-size:14px}
.faq{display:grid;gap:10px}
.faq .item{border:1px solid var(--line);border-radius:9px;padding:12px 16px;background:#fbfcfd}
.faq .item h3{margin:0 0 6px;font-size:15.5px;color:var(--ink);display:flex;gap:8px}
.faq .item h3::before{content:"问";flex:none;font-size:12px;background:var(--ink);color:#fff;border-radius:4px;padding:0 6px;height:20px;line-height:20px;margin-top:3px}
.faq .item p{margin:0;color:var(--ink-2);font-size:14.5px;padding-left:30px}
.related{margin-top:40px;padding:18px;border-radius:10px;background:var(--card);border:1px solid var(--line)}
.related h2{font-size:16px;margin:0 0 10px}
.related h2::before{display:none}
.related ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
.related li a{color:var(--ink);font-weight:600}
.related li a::before{content:"→ ";color:var(--teal)}
.article .btn-row{margin:14px 0 18px}
.disclosure{font-size:12.5px;color:var(--muted);background:var(--card);border:1px dashed var(--line);border-radius:8px;padding:10px 14px;margin:0 0 20px;line-height:1.7}
.next-reads li{margin:8px 0}

/* ---------- 评测页组件 ---------- */
.review-box{border:1px solid var(--line);border-radius:var(--r);padding:6px 18px;margin:16px 0;background:#fbfcfd}
.kv{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 22px;font-size:14px;margin:0;padding:0;list-style:none}
.kv li{display:flex;gap:10px;padding:9px 0;border-bottom:1px dashed var(--line)}
.kv li span:first-child{color:var(--muted);flex:none;width:84px;font-size:13px}
@media (max-width:600px){.kv{grid-template-columns:1fr}}
.pros-cons{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:16px 0}
@media (max-width:600px){.pros-cons{grid-template-columns:1fr}}
.pros-cons div{border-radius:9px;padding:12px 16px;border:1px solid var(--line)}
.pros{background:var(--green-t);border-color:#bfe3d0!important}.cons{background:var(--amber-t);border-color:#f0d6a8!important}
.pros-cons .pc-h,.pros-cons h4{margin:0 0 6px;font-size:13.5px;font-weight:800}
.pros-cons ul{margin:0;padding-left:18px;font-size:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#9fb3c6;padding:44px 0 28px;margin-top:30px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-bottom:30px}
.footer-grid-5{grid-template-columns:repeat(5,1fr)}
@media (max-width:1000px){.footer-grid,.footer-grid-5{grid-template-columns:repeat(3,1fr)}}
@media (max-width:640px){.footer-grid,.footer-grid-5{grid-template-columns:repeat(2,1fr)}}
.footer-grid h4{margin:0 0 10px;font-size:13px;color:#fff;letter-spacing:.04em}
.footer-grid ul{list-style:none;margin:0;padding:0}
.footer-grid li{margin:5px 0;font-size:13px}
.footer-grid a{color:#9fb3c6}
.footer-grid a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:18px;font-size:12.5px}
.footer-bottom p{margin:6px 0}
.footer-links{display:flex;gap:14px;flex-wrap:wrap;margin-top:8px}
.footer-links a{color:#9fb3c6}

/* ---------- 跳转页 / 提示 ---------- */
.go-box{max-width:560px;margin:70px auto;text-align:center;padding:30px 22px;background:var(--sheet);border:1px solid var(--line);border-radius:14px}
.go-box .domain{font-family:var(--mono);background:var(--ink);color:#7fd6c9;padding:10px 16px;border-radius:8px;display:inline-block;margin:12px 0;font-size:15px}
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:8px 16px;border-radius:8px;font-size:13px;opacity:0;transition:opacity .2s;pointer-events:none}
.toast.show{opacity:1}
.speedshot{margin:14px 0 22px;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff}
.speedshot img{display:block;width:100%;height:auto}
.speedshot figcaption{font-size:12.5px;color:var(--muted);padding:10px 14px;border-top:1px solid var(--line);line-height:1.6}
.speed-grid .card img{width:100%;height:150px;object-fit:cover;object-position:top;border-radius:6px;border:1px solid var(--line);margin-bottom:10px}
.dim-list{padding-left:22px}.dim-list li{margin:8px 0;line-height:1.7}

/* ===== 数据图表：Dark Network Observatory ===== */
.obs{--bg:#0d1526;--panel:#121c31;--line:#22314f;--txt:#d3dcec;--dim:#8796b0;--accent:#7aa2f7;
  margin:18px 0 24px;background:var(--bg);background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:22px 22px;
  border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:14px;color:var(--txt);overflow:hidden;font-size:13.5px;line-height:1.5}
.obs .mono,.obs-cell b{font-family:ui-monospace,SFMono-Regular,Menlo,"PingFang SC",monospace}
.obs-head{display:flex;flex-wrap:wrap;gap:6px 14px;align-items:baseline;padding:12px 16px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.02)}
.obs-kind{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.obs-brand{color:var(--dim)}.obs-brand b{color:#fff;font-size:15px}
.obs-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line)}
.obs-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:720px){.obs-grid,.obs-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
.obs-cell{background:var(--panel);padding:11px 14px;display:flex;flex-direction:column;gap:4px;min-width:0}
.obs-cell small{color:var(--dim);font-size:11.5px}
.obs-cell b{color:#fff;font-size:15px;font-weight:600;word-break:break-word}
.obs-cell b small{color:var(--dim);font-size:11px;font-weight:400;margin-left:2px}
.obs-badge{display:inline-flex;align-items:center;gap:5px;font-size:10.5px;letter-spacing:.02em;padding:1px 7px;border-radius:999px;border:1px solid currentColor;width:max-content;white-space:nowrap}
.obs-badge i{width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 6px currentColor}
.obs-measured{color:#4fd1a5}.obs-vendor{color:#7aa2f7}.obs-tbd{color:#a0aec0}.obs-nottested{color:#718096}.obs-partial{color:#ecc94b}.obs-unavailable{color:#fc8181}
.obs-nottested i,.obs-tbd i{box-shadow:none}
.obs-tags,.obs-regions{display:flex;flex-wrap:wrap;gap:6px;padding:12px 16px;border-top:1px solid var(--line)}
.obs-tags span,.obs-regions span{font-size:11.5px;color:var(--txt);border:1px solid var(--line);background:var(--panel);border-radius:6px;padding:2px 8px;display:inline-flex;align-items:center;gap:6px}
.obs-regions i{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.obs-list{margin:0;padding:10px 16px 12px 34px;border-top:1px solid var(--line);font-size:12.5px;color:var(--txt)}
.obs-list li{margin:3px 0}.obs-list li.ok::marker{color:#4fd1a5}.obs-list li.warn::marker{color:#ecc94b}.obs-list li.warn{color:#f6e05e}
.obs-matrix{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line)}
@media (max-width:720px){.obs-matrix{grid-template-columns:1fr}}
.obs-matrix>div{background:var(--panel);padding:10px 14px}
.obs-matrix .obs-sec,.obs-matrix h5{margin:2px 0 8px;font-size:11.5px;color:var(--accent);letter-spacing:.06em}
.obs-svc{display:grid;grid-template-columns:120px auto 1fr;gap:8px;align-items:center;padding:6px 0;border-bottom:1px dashed var(--line)}
.obs-svc:last-child{border-bottom:0}
.obs-svc-name{color:#fff;font-weight:600}.obs-svc small{color:var(--dim);font-size:11.5px}
@media (max-width:480px){.obs-svc{grid-template-columns:1fr auto}.obs-svc small{grid-column:1/-1}}
.obs-path{display:flex;align-items:stretch;gap:0;padding:16px;overflow-x:auto}
.obs-node{flex:0 0 auto;min-width:118px;max-width:190px;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px 12px;color:#fff;font-weight:600;display:flex;flex-direction:column;gap:6px}
.obs-node small{color:var(--dim);font-weight:400;font-size:11.5px;line-height:1.45}
.obs-edge{flex:1 0 70px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;position:relative;padding:0 6px;font-size:11px;color:var(--dim);text-align:center}
.obs-edge::before{content:"";position:absolute;left:0;right:0;top:50%;border-top:1px dashed #3a4a6b;z-index:0}
.obs-edge span,.obs-edge .obs-badge{position:relative;z-index:1;background:var(--bg);padding:0 4px}
.obs-edge-premium::before{border-top:3px solid var(--accent);box-shadow:0 0 8px var(--accent)}
.obs-edge-premium span{color:#fff;font-weight:600}
@media (max-width:720px){.obs-path{flex-direction:column}.obs-node{max-width:none}.obs-edge{flex:0 0 46px}.obs-edge::before{left:50%;right:auto;top:0;bottom:0;border-top:0;border-left:1px dashed #3a4a6b}.obs-edge-premium::before{border-left:3px solid var(--accent)}}
.obs-foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 14px;padding:10px 16px;border-top:1px solid var(--line);font-size:11.5px;color:var(--dim)}
.obs-foot a{color:var(--accent)}
.obs-wm{opacity:.3;color:#fff;margin-left:auto;white-space:nowrap}

/* ===== 品牌库 ===== */
.lib-bar{position:relative;background:#fff;backdrop-filter:blur(8px);border:1px solid var(--line);border-radius:14px;padding:12px;margin:0 0 16px;display:grid;gap:10px}
.lib-bar input[type=search]{width:100%;font-size:15px;padding:10px 12px;border:1px solid var(--line);border-radius:10px}
.lib-filters{display:flex;flex-wrap:wrap;gap:8px}
.lib-filters select{font-size:13px;padding:7px 8px;border:1px solid var(--line);border-radius:8px;background:#fff;max-width:100%}
.lib-chips{display:flex;gap:6px;overflow-x:auto;padding-bottom:2px}
.lib-chips button{flex:none;font-size:12.5px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:5px 11px;cursor:pointer}
.lib-chips button[aria-pressed=true]{background:var(--teal);color:#fff;border-color:var(--teal)}
.lib-meta{display:flex;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.lib-reset{font-size:13px;background:none;border:0;color:var(--link);cursor:pointer;padding:0}
.lib-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
@media (max-width:960px){.lib-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.lib-grid{grid-template-columns:1fr}}
@media (min-width:900px){.lib-bar{position:sticky;top:64px;z-index:20}}
.lib-card{border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:10px;background:#fff}
.lib-card[hidden]{display:none}
.lib-card h3{margin:0;font-size:17px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.lib-card h3 a{color:var(--fg)}
.lib-card .sub{font-size:13px;color:var(--muted);margin:0}
.lib-kv{display:grid;grid-template-columns:1fr 1fr;gap:6px 12px;font-size:12.5px;margin:0}
.lib-kv div small{display:block;color:var(--muted);font-size:11px}
.lib-kv div b{font-weight:600}
.lib-tags{display:flex;flex-wrap:wrap;gap:5px}
.lib-tags span{font-size:11px;background:var(--card);border-radius:6px;padding:2px 7px;color:#444}
.lib-status{display:flex;flex-wrap:wrap;gap:6px;font-size:11px}
.lib-status span{border-radius:999px;padding:1px 8px;border:1px solid}
.st-vendor{color:#2b5bd7;border-color:#c7d6fb}.st-measured{color:#14825f;border-color:#bfe6d6}.st-tbd{color:#666;border-color:#ddd}.st-review{color:#a8740b;border-color:#f1dca6}
.lib-card .actions{display:flex;gap:8px;margin-top:auto;flex-wrap:wrap}
.lib-empty{text-align:center;padding:40px 16px;border:1px dashed var(--line);border-radius:14px;color:var(--muted)}
.lib-empty[hidden]{display:none}
/* 三列网格里的窄排名卡 */
.grid-3 .rank-card{grid-template-columns:56px minmax(0,1fr)}
.grid-3 .rank-no{font-size:18px}
.grid-3 .specs{grid-template-columns:repeat(2,minmax(0,1fr))}
.article .rank-card{grid-template-columns:56px minmax(0,1fr)}
.article .rank-no{font-size:18px}
.article .specs{grid-template-columns:repeat(2,minmax(0,1fr))}
.skip{position:absolute;left:-9999px;top:8px;z-index:100;background:var(--teal);color:#fff;padding:8px 14px;border-radius:6px}
.skip:focus{left:12px}
/* 栏目专题首页卡片 */
.hub-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:12px 0 8px}
@media (max-width:640px){.hub-grid{grid-template-columns:1fr}}
.hub-card{display:flex;flex-direction:column;gap:5px;padding:13px 15px;border:1px solid var(--line);border-left:3px solid var(--teal);border-radius:9px;background:#fbfcfd;color:var(--ink)}
.hub-card:hover{text-decoration:none;border-left-color:var(--amber);background:#fff}
.hub-t{font-weight:800;font-size:15px;line-height:1.45}
.hub-d{font-size:13px;color:var(--muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hub-m{font-size:11px;color:#9aa8b6;font-family:var(--mono)}
.hub-start .hub-card{border-left-color:var(--amber);background:var(--amber-t)}
/* 评测栏目：测速截图墙 */
.shot-wall{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px;margin:12px 0}
@media (max-width:900px){.shot-wall{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media (max-width:520px){.shot-wall{grid-template-columns:repeat(3,minmax(0,1fr))}}
.shot-wall a{display:flex;flex-direction:column;gap:4px;color:var(--ink);font-size:12px;font-weight:700;text-align:center}
.shot-wall img{width:100%;height:120px;object-fit:cover;object-position:top;border-radius:6px;border:1px solid var(--line)}
.shot-wall a:hover{text-decoration:none}.shot-wall a:hover img{border-color:var(--teal)}