:root{
  --bg:#f6f8fb; --card:#fff; --ink:#1c2430; --ink2:#4a5568; --muted:#7b8798;
  --line:#e3e8f0; --brand:#2b5cd9; --brand-soft:#eef3ff; --brand-line:#c9d9ff;
  --ok:#1f8a5b; --ok-soft:#eaf7f0; --warn:#b7791f; --warn-soft:#fff8e8;
  --danger:#c0392b; --danger-soft:#fdf0ee; --accent:#e2600c; --accent-soft:#fff3e9;
  --shadow:0 2px 10px rgba(28,36,48,.05);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--ink);font-size:14px;line-height:1.7;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
code,.mono{font-family:Consolas,Menlo,monospace;font-size:12.5px;background:#f2f5fa;
  padding:1px 5px;border-radius:3px;color:#254a9c}

/* ---------- nav ---------- */
.nav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.nav-in{max-width:1080px;margin:0 auto;padding:0 22px;height:58px;display:flex;align-items:center;gap:24px}
.logo{font-weight:800;font-size:17px;letter-spacing:.4px;color:var(--ink);white-space:nowrap}
.logo span{color:var(--accent)}
.nav-links{display:flex;gap:4px;align-items:center}
.nav-links a{color:var(--ink2);font-size:13.5px;padding:7px 12px;border-radius:7px}
.nav-links a:hover{background:var(--brand-soft);text-decoration:none;color:var(--brand)}
.nav-links a.primary{background:var(--brand-soft);color:var(--brand);font-weight:600;border:1px solid var(--brand-line)}
.nav-links a.active{background:#f0f3f9;color:var(--ink);font-weight:600}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-right .tag{font-size:12px;color:var(--muted)}

/* ---------- layout ---------- */
.wrap{max-width:1080px;margin:0 auto;padding:28px 22px 70px}
.hero{background:linear-gradient(135deg,#fff 0%,#f3f7ff 100%);border:1px solid var(--line);
  border-radius:14px;padding:30px 34px;margin-bottom:22px;box-shadow:var(--shadow)}
.hero h1{margin:0 0 6px;font-size:26px;letter-spacing:-.3px}
.hero p{margin:0;color:var(--muted);font-size:13.5px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:20px 22px;box-shadow:var(--shadow);margin-bottom:20px}
.card > h2{font-size:16px;margin:0 0 4px;display:flex;align-items:center;gap:10px}
.card > .sub{color:var(--muted);font-size:12.5px;margin:0 0 16px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}

/* ---------- search ---------- */
.searchbar{display:flex;gap:10px;align-items:center;max-width:720px;margin-top:18px}
.searchbar input{flex:1;height:44px;border:1px solid var(--line);border-radius:9px;
  padding:0 14px;font-size:14px;background:#fff;color:var(--ink);outline:none}
.searchbar input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.btn{height:44px;padding:0 20px;border:1px solid var(--brand);background:var(--brand);
  color:#fff;border-radius:9px;font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap}
.btn:hover{opacity:.92}
.btn.sm{height:30px;padding:0 12px;font-size:12.5px;border-radius:7px}
.btn.ghost{background:#fff;color:var(--brand)}
.btn.gray{background:#fff;color:var(--ink2);border-color:var(--line)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.scope-note{margin-top:10px;font-size:12.5px;color:var(--muted)}
.scope-note b{color:var(--accent)}

/* ---------- dir cards ---------- */
.dir-card{border:1px solid var(--line);border-radius:10px;padding:16px 17px;background:#fff;
  display:block;color:inherit;transition:border-color .15s,transform .15s}
.dir-card:hover{border-color:var(--brand);text-decoration:none;transform:translateY(-1px)}
.dir-card .name{font-weight:700;font-size:15px;margin-bottom:6px}
.dir-card .desc{color:var(--muted);font-size:12.5px;min-height:38px}
.dir-card .meta{display:flex;gap:8px;align-items:center;margin-top:12px;flex-wrap:wrap}
.pill{font-size:11.5px;padding:2px 9px;border-radius:99px;border:1px solid var(--line);color:var(--ink2);background:#fafbfe}
.pill.ok{background:var(--ok-soft);color:var(--ok);border-color:#bfe6d0}
.pill.blue{background:var(--brand-soft);color:var(--brand);border-color:var(--brand-line)}
.pill.warn{background:var(--warn-soft);color:var(--warn);border-color:#f2d79a}
.pill.gray{background:#f4f6fa;color:var(--muted)}

/* ---------- hot ---------- */
.hot-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.hot-head .group-name{font-weight:700;font-size:15px}
.dots{display:flex;gap:5px;margin-left:auto}
.dot{width:7px;height:7px;border-radius:99px;background:#dfe5ee}
.dot.on{background:var(--accent);width:20px}
.hot-list{display:grid;grid-template-columns:repeat(4,1fr);gap:8px 18px}
.hot-item{border:0;background:transparent;text-align:left;cursor:pointer;font-size:13px;
  color:var(--ink2);padding:5px 0;display:flex;gap:9px;align-items:baseline}
.hot-item:hover{color:var(--brand)}
.hot-item .n{color:#b3bdcb;font-size:11.5px;font-variant-numeric:tabular-nums;min-width:20px}
.hot-item .w{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hot-foot{margin-top:14px;font-size:12px;color:var(--muted);display:flex;gap:14px}

/* ---------- browse ---------- */
.crumbs{display:flex;gap:7px;align-items:center;font-size:13px;color:var(--muted);flex-wrap:wrap;margin-bottom:16px}
.crumbs a{color:var(--brand)}
.crumbs .sep{color:#c3cbd7}
.list{border:1px solid var(--line);border-radius:10px;overflow:hidden}
.row{display:flex;align-items:center;gap:12px;padding:11px 16px;border-bottom:1px solid var(--line);background:#fff}
.row:last-child{border-bottom:0}
.row:hover{background:#fafbfe}
.row .ico{width:20px;text-align:center;color:var(--muted);font-size:15px}
.row .nm{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.row .nm a{color:var(--ink)}
.row .sz{width:92px;text-align:right;color:var(--muted);font-size:12.5px}
.row .dt{width:150px;text-align:right;color:var(--muted);font-size:12.5px}
.row .op{width:96px;text-align:right}
.empty{padding:36px 16px;text-align:center;color:var(--muted)}
.link-out{margin-top:12px;padding:12px 14px;border-radius:8px;background:var(--ok-soft);
  border:1px solid #bfe6d0;font-size:13px;word-break:break-all}
.link-out.err{background:var(--danger-soft);border-color:#f3c6bf;color:var(--danger)}

/* ---------- admin ---------- */
.form-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.form-row label{width:110px;color:var(--ink2);font-size:13px;flex-shrink:0}
.form-row input,.form-row select,.form-row textarea{height:36px;border:1px solid var(--line);
  border-radius:7px;padding:0 10px;font-size:13px;background:#fff;color:var(--ink);min-width:220px}
.form-row textarea{height:78px;padding:8px 10px;min-width:420px;resize:vertical}
table{width:100%;border-collapse:collapse;font-size:13px;margin-top:8px}
th,td{border:1px solid var(--line);padding:8px 11px;text-align:left;vertical-align:top}
th{background:#f7f9fd;color:var(--ink2);font-weight:600}
.notice{border-left:4px solid var(--brand);background:var(--brand-soft);padding:11px 15px;
  border-radius:0 7px 7px 0;font-size:13px;margin:14px 0}
.notice.warn{border-color:var(--warn);background:var(--warn-soft)}
.notice.danger{border-color:var(--danger);background:var(--danger-soft)}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);background:#fff;color:var(--muted);font-size:12.5px}
.foot-in{max-width:1080px;margin:0 auto;padding:20px 22px;display:flex;gap:24px;flex-wrap:wrap}
.foot-in .grow{flex:1;min-width:260px}
.foot-in a{color:var(--ink2)}

@media(max-width:760px){
  .nav-in{gap:12px;padding:0 14px;height:54px}
  .nav-links a{padding:6px 8px;font-size:12.5px}
  .nav-right{display:none}
  .wrap{padding:18px 14px 50px}
  .hero{padding:22px 18px}
  .hero h1{font-size:21px}
  .hot-list{grid-template-columns:repeat(2,1fr)}
  .row .dt,.row .sz{display:none}
  .form-row label{width:100%}
  .form-row textarea{min-width:100%}
}