:root{
  --ink:#0f2233; --muted:#5b7185; --line:#e2e8ee; --bg:#f4f7fa;
  --brand:#0e7c86; --brand-d:#0a5b63; --brand-l:#e6f4f5;
  --ok:#0f7b4a; --ok-bg:#e6f5ec; --err:#b42318; --err-bg:#fdeceb;
  --card:#ffffff;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink); background:var(--bg);
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

/* ── 认证页 ── */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  background:linear-gradient(135deg,#0a5b63,#0e7c86 60%,#12a0ad)}
.auth-card{background:#fff;border-radius:16px;box-shadow:0 20px 50px rgba(6,40,45,.28);
  width:100%;max-width:400px;padding:34px 30px}
.auth-brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:var(--ink)}
.auth-brand .whale{font-size:26px}
.auth-tag{color:var(--muted);margin:6px 0 22px;font-size:13px}
.auth-card h2{margin:0 0 16px;font-size:16px}
.field{margin-bottom:14px}
.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}
.field input,.field select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;
  font-size:14px;background:#fff;outline:none}
.field input:focus,.field select:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-l)}
.btn{display:inline-block;border:0;border-radius:9px;padding:10px 18px;font-size:14px;font-weight:600;
  cursor:pointer;background:var(--brand);color:#fff}
.btn:hover{background:var(--brand-d)}
.btn.block{width:100%}
.btn.ghost{background:#fff;color:var(--brand);border:1px solid var(--line)}
.btn.sm{padding:6px 12px;font-size:12px}
.btn.danger{background:#fff;color:var(--err);border:1px solid #f3c9c5}
.auth-alt{margin-top:16px;font-size:13px;color:var(--muted);text-align:center}

/* ── 布局 ── */
.shell{display:flex;min-height:100vh}
.side{width:216px;background:var(--brand-d);color:#dff0f1;display:flex;flex-direction:column;
  position:fixed;top:0;bottom:0;left:0}
.side .logo{display:flex;align-items:center;gap:9px;padding:18px 18px;font-weight:800;font-size:17px;color:#fff}
.side .logo .whale{font-size:21px}
.side nav{padding:8px 10px;flex:1;overflow-y:auto}
.side nav a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;color:#cfe8ea;
  font-size:14px;margin-bottom:2px}
.side nav a:hover{background:rgba(255,255,255,.08);text-decoration:none;color:#fff}
.side nav a.active{background:#fff;color:var(--brand-d);font-weight:600}
.side .tag{padding:12px 18px;font-size:11px;color:#9cc9cc;border-top:1px solid rgba(255,255,255,.12)}
.main{margin-left:216px;flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{background:#fff;border-bottom:1px solid var(--line);padding:0 24px;height:56px;
  display:flex;align-items:center;justify-content:space-between}
.topbar .who{font-size:13px;color:var(--muted)}
.topbar .who b{color:var(--ink)}
.badge{display:inline-block;background:var(--brand-l);color:var(--brand-d);border-radius:20px;
  padding:2px 10px;font-size:12px;margin-left:6px}
.content{padding:24px;max-width:1180px;width:100%}
h1.page{font-size:20px;margin:0 0 4px}
.sub{color:var(--muted);margin:0 0 20px;font-size:13px}

/* ── 卡片 / 表格 ── */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:22px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.stat .n{font-size:26px;font-weight:800;color:var(--brand-d)}
.stat .l{font-size:12px;color:var(--muted);margin-top:2px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:18px}
.card h3{margin:0 0 14px;font-size:15px}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--muted);font-weight:600;font-size:12px;background:#fafcfd}
tr:last-child td{border-bottom:0}
.tbl-wrap{overflow-x:auto}
.pill{display:inline-block;border-radius:20px;padding:2px 9px;font-size:12px}
.pill.on{background:var(--ok-bg);color:var(--ok)}
.pill.off{background:#f0f2f4;color:var(--muted)}
.pill.warn{background:#fef4e6;color:#b7791f}

/* ── 表单行 ── */
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;align-items:end}
.form-grid .field{margin:0}
.form-actions{margin-top:14px}
details.adder{margin-bottom:18px}
details.adder>summary{cursor:pointer;font-weight:600;color:var(--brand-d);list-style:none;
  background:var(--brand-l);padding:10px 14px;border-radius:10px;display:inline-block}
details.adder>summary::-webkit-details-marker{display:none}
details.adder[open]>summary{border-bottom-left-radius:0;border-bottom-right-radius:0}
details.adder .card{border-top-left-radius:0;margin-top:0}

/* ── 选品中心横幅 ── */
.hero{background:linear-gradient(120deg,#0a5b63,#0e7c86 55%,#12a0ad);color:#fff;
  border-radius:14px;padding:22px 24px;margin-bottom:20px}
.hero-title{font-size:22px;font-weight:800;letter-spacing:.5px}
.hero-sub{font-size:13px;color:#d6f0f2;margin-top:5px}

/* ── 工具条 / 缩略图 ── */
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.toolbar details.adder{margin-bottom:0}
.thumb{width:46px;height:46px;object-fit:cover;border-radius:7px;border:1px solid var(--line);background:#fff;display:block}
.thumb-lg{width:96px;height:96px;object-fit:cover;border-radius:10px;border:1px solid var(--line)}
.thumb-empty{display:flex;align-items:center;justify-content:center;font-size:11px;color:var(--muted);
  background:#f0f2f4}
code{background:#f0f2f4;padding:1px 5px;border-radius:4px;font-size:12px}

.flash{padding:10px 14px;border-radius:9px;margin-bottom:16px;font-size:13px;white-space:pre-wrap}
.flash.ok{background:var(--ok-bg);color:var(--ok)}
.flash.error{background:var(--err-bg);color:var(--err)}
.empty{color:var(--muted);padding:20px;text-align:center}

@media(max-width:720px){
  .side{width:60px}
  .side .logo span:not(.whale),.side nav a span:not(.ico),.side .tag{display:none}
  .side nav a{justify-content:center}
  .main{margin-left:60px}
}