:root{
  --bg:#f5f6f8; --panel:#ffffff; --line:#e3e6ea; --line2:#eef0f3;
  --text:#1f2328; --muted:#6b7280; --dim:#9aa3ad;
  --accent:#c0392b; --accent2:#b03024; --ok:#1a7f4b; --warn:#b7791f;
  --chip:#eef1f5;
  --radius:10px;
  --shadow:0 1px 2px rgba(16,24,40,.05),0 1px 3px rgba(16,24,40,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);
  font:14px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}
a{color:inherit}
code{background:var(--chip);padding:1px 6px;border-radius:5px;font-size:.92em}

/* ---------- topbar ---------- */
.topbar{display:flex;justify-content:space-between;align-items:center;gap:24px;
  padding:14px 24px;background:var(--panel);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:30}
.brand{display:flex;align-items:center;gap:12px}
.logo{width:38px;height:38px;border-radius:9px;background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;flex:none}
.topbar h1{margin:0;font-size:16px;font-weight:600}
.sub{margin:2px 0 0;font-size:12px;color:var(--muted)}
.topstats{display:flex;gap:20px;flex:none}
.topstats div{text-align:right}
.topstats b{display:block;font-size:17px;font-weight:650;font-variant-numeric:tabular-nums}
.topstats span{font-size:11px;color:var(--muted)}

/* ---------- tabs ---------- */
.tabs{display:flex;gap:6px;padding:12px 24px 0;flex-wrap:wrap}
.tabs button{border:1px solid var(--line);background:var(--panel);color:var(--text);
  padding:8px 16px;border-radius:8px;cursor:pointer;font-size:13px}
.tabs button:hover{border-color:#cdd3da}
.tabs button.on{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.tabs button .n{opacity:.72;margin-left:6px;font-size:12px}

/* ---------- filters ---------- */
.filters{display:flex;gap:8px;padding:12px 24px;flex-wrap:wrap;align-items:center}
.filters input[type=search]{flex:1;min-width:240px;padding:8px 12px;border:1px solid var(--line);
  border-radius:8px;background:var(--panel);font-size:13px;color:var(--text)}
.filters input[type=number]{width:92px;padding:8px 10px;border:1px solid var(--line);
  border-radius:8px;background:var(--panel);font-size:13px;color:var(--text)}
.filters select{padding:8px 10px;border:1px solid var(--line);border-radius:8px;
  background:var(--panel);font-size:13px;color:var(--text);max-width:240px}
.chk{display:flex;align-items:center;gap:5px;font-size:13px;color:var(--muted);cursor:pointer;
  padding:6px 10px;background:var(--panel);border:1px solid var(--line);border-radius:8px;white-space:nowrap}
.chk input{accent-color:var(--accent)}
.btn-ghost{padding:8px 14px;border:1px solid var(--line);background:var(--panel);
  border-radius:8px;cursor:pointer;font-size:13px;color:var(--muted)}
.btn-ghost:hover{color:var(--text);border-color:#cdd3da}

/* ---------- 分类多选面板 ---------- */
.catbox{position:relative}
.catbtn{padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:var(--panel);
  font-size:13px;color:var(--text);cursor:pointer;max-width:280px;white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis}
.catbtn:hover{border-color:#cdd3da}
.catbtn.active{border-color:var(--accent);color:var(--accent);font-weight:600}
.catbtn .caret{color:var(--dim);margin-left:4px}
.catpanel{position:absolute;top:calc(100% + 6px);left:0;z-index:40;width:420px;max-width:90vw;
  background:var(--panel);border:1px solid var(--line);border-radius:10px;
  box-shadow:0 10px 30px rgba(16,24,40,.16);display:flex;flex-direction:column;max-height:440px}
.catpanel[hidden]{display:none}
.catpanel-head{display:flex;gap:6px;padding:10px;border-bottom:1px solid var(--line2);align-items:center}
.catpanel-head input{flex:1;min-width:0;padding:6px 10px;border:1px solid var(--line);
  border-radius:7px;font-size:13px;background:#fff;color:var(--text)}
.mini{padding:6px 10px;border:1px solid var(--line);background:#fff;border-radius:7px;
  font-size:12px;color:var(--muted);cursor:pointer;white-space:nowrap}
.mini:hover{color:var(--text);border-color:#cdd3da}
.catpanel-list{overflow:auto;padding:6px;flex:1}
.catpanel-foot{display:flex;justify-content:space-between;align-items:center;gap:8px;
  padding:8px 10px;border-top:1px solid var(--line2);font-size:12px;color:var(--muted)}
.catitem{display:flex;align-items:center;gap:8px;padding:5px 8px;border-radius:6px;
  font-size:12.5px;cursor:pointer;line-height:1.4}
.catitem:hover{background:var(--chip)}
.catitem input{accent-color:var(--accent);flex:none}
.catitem .nm{flex:1;word-break:break-word}
.catitem .ct{color:var(--dim);font-variant-numeric:tabular-nums;flex:none}
.catitem.root .nm{font-weight:600}
.catempty{padding:20px;text-align:center;color:var(--dim);font-size:12.5px}

/* ---------- 库存徽标 ---------- */
.stk{display:inline-flex;align-items:center;gap:3px}
.stk.in{color:var(--ok)}
.stk.branch{color:var(--warn)}
.stk.none{color:var(--dim)}
.flag.branch{background:#fff8ec;border-color:#f0d9ae;color:var(--warn)}

/* ---------- 弹窗里的分店表 ---------- */
.sechead{font-size:12px;color:var(--muted);margin:16px 0 6px}
.storetbl{width:100%;border-collapse:collapse;font-size:12.5px}
.storetbl th{text-align:left;font-weight:600;color:var(--muted);font-size:11.5px;
  padding:4px 6px;border-bottom:1px solid var(--line2)}
.storetbl th.num,.storetbl td.num{text-align:right;width:56px;font-variant-numeric:tabular-nums}
.storetbl td{padding:6px;border-bottom:1px solid var(--line2);vertical-align:top}
.storetbl a{color:var(--accent);text-decoration:none}
.storetbl a:hover{text-decoration:underline}
.storetbl .addr{color:var(--dim);font-size:11px;margin-top:2px;line-height:1.4}
.storenone{font-size:12px;color:var(--dim);background:#fafbfc;border:1px solid var(--line2);
  border-radius:7px;padding:9px 11px;line-height:1.5}
.storetbl tr.cheap{background:#fffaf0}
.storetbl tr.cheap td{font-weight:600}
.storetbl .best{font-size:10px;background:var(--accent);color:#fff;padding:1px 5px;
  border-radius:4px;margin-left:4px;font-weight:600;vertical-align:1px}
.storetbl .pricecol{white-space:nowrap;color:var(--accent);font-weight:600}
.storetbl .np{color:var(--dim);font-weight:400}
.card .price .sub{font-size:10px;color:var(--dim);margin-left:2px;font-weight:400}

/* ---------- result bar ---------- */
.resultbar{padding:0 24px 10px;font-size:13px;color:var(--muted)}
.resultbar b{color:var(--text);font-variant-numeric:tabular-nums}

/* ---------- grid ---------- */
.grid{display:grid;gap:14px;padding:0 24px 28px;
  grid-template-columns:repeat(auto-fill,minmax(186px,1fr))}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;cursor:pointer;display:flex;flex-direction:column;
  transition:box-shadow .13s,border-color .13s,transform .13s}
.card:hover{box-shadow:0 4px 14px rgba(16,24,40,.10);border-color:#cfd6dd;transform:translateY(-1px)}
.card .thumb{aspect-ratio:3/4;background:#fafbfc;display:flex;align-items:center;justify-content:center;
  border-bottom:1px solid var(--line2);position:relative;overflow:hidden}
.card .thumb img{width:100%;height:100%;object-fit:contain;display:block}
.card .thumb .noimg{color:var(--dim);font-size:12px}
.card .flagline{position:absolute;inset:0 0 auto 0;display:flex;gap:4px;padding:6px}
.flag{font-size:10px;padding:2px 6px;border-radius:5px;background:rgba(255,255,255,.94);
  border:1px solid var(--line);color:var(--muted)}
.flag.new{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.flag.out{background:#fff4f2;border-color:#f3c8c2;color:var(--accent)}
.flag.touhou{background:#eef7f1;border-color:#c8e3d2;color:var(--ok)}
.card .body{padding:9px 10px 10px;display:flex;flex-direction:column;gap:5px;flex:1}
.card .nm{font-size:12.5px;line-height:1.4;height:3.5em;overflow:hidden;display:-webkit-box;
  -webkit-line-clamp:3;-webkit-box-orient:vertical}
.card .price{font-weight:700;color:var(--accent);font-size:14px;font-variant-numeric:tabular-nums}
.card .price .cur{font-size:11px;font-weight:500;margin-right:1px}
.card .price .none{color:var(--dim);font-weight:400;font-size:12px}
.card .meta{font-size:11px;color:var(--dim);display:flex;justify-content:space-between;gap:6px}
.card .cat{font-size:11px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---------- pager ---------- */
.pager{display:flex;gap:6px;justify-content:center;align-items:center;padding:4px 24px 40px;flex-wrap:wrap}
.pager button{min-width:36px;padding:7px 10px;border:1px solid var(--line);background:var(--panel);
  border-radius:7px;cursor:pointer;font-size:13px;color:var(--text)}
.pager button:hover{border-color:#cdd3da}
.pager button.on{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.pager button:disabled{opacity:.42;cursor:default}
.pager .ell{color:var(--dim);padding:0 4px}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;z-index:60;display:flex;align-items:center;justify-content:center;padding:24px}
.modal[hidden]{display:none}   /* display:flex 会盖掉 hidden 属性，必须显式覆盖 */
.modal-mask{position:absolute;inset:0;background:rgba(20,22,26,.46)}
.modal-body{position:relative;background:var(--panel);border-radius:14px;max-width:880px;width:100%;
  max-height:88vh;overflow:auto;display:grid;grid-template-columns:300px 1fr;gap:0;
  box-shadow:0 18px 50px rgba(16,24,40,.28)}
.modal-close{position:absolute;top:10px;right:12px;border:0;background:transparent;font-size:24px;
  line-height:1;color:var(--muted);cursor:pointer;z-index:2}
.modal-img{background:#fafbfc;border-right:1px solid var(--line2);display:flex;
  align-items:flex-start;justify-content:center;padding:20px}
.modal-img img{width:100%;height:auto;border-radius:8px}
.modal-info{padding:22px 24px}
.modal-info h2{margin:0 0 4px;font-size:16px;line-height:1.45;font-weight:650}
.modal-info .id{font-size:12px;color:var(--dim);margin-bottom:14px;font-variant-numeric:tabular-nums}
.kv{display:grid;grid-template-columns:88px 1fr;gap:6px 12px;font-size:13px;margin-bottom:16px}
.kv dt{color:var(--muted)}
.kv dd{margin:0;word-break:break-word}
.kv dd.price{color:var(--accent);font-weight:700;font-size:15px}
.note{background:#fafbfc;border:1px solid var(--line2);border-radius:8px;padding:11px 13px;
  font-size:12.5px;line-height:1.65;white-space:pre-wrap;max-height:230px;overflow:auto;color:#333}
.note.empty{color:var(--dim)}
.actions{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.actions a{padding:8px 16px;border-radius:8px;background:var(--accent);color:#fff;
  text-decoration:none;font-size:13px;font-weight:600}
.actions a.ghost{background:var(--panel);color:var(--text);border:1px solid var(--line);font-weight:500}

.empty-state{grid-column:1/-1;text-align:center;color:var(--dim);padding:70px 0;font-size:14px}

@media (max-width:760px){
  .topbar{flex-direction:column;align-items:flex-start;gap:10px}
  .topstats{gap:14px}
  .modal-body{grid-template-columns:1fr}
  .modal-img{border-right:0;border-bottom:1px solid var(--line2)}
  .grid{padding:0 14px 24px;grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
  .filters,.tabs,.resultbar,.pager{padding-left:14px;padding-right:14px}
}