/* ============================================================
   经络铜人 · 3D人体穴位学习查询平台  全局主题
   主题：青玄·鎏金（深色数字中医）
   ============================================================ */
:root{
  --bg0:#04080c; --bg1:#0a141b; --bg2:#0e1b24;
  --panel:rgba(146,188,206,.055); --panel2:rgba(20,34,44,.6);
  --line:rgba(150,200,222,.16); --line2:rgba(150,200,222,.30);
  --txt:#e9f1f6; --mut:#8fa6b3; --faint:#5f7684;
  --gold:#e0b875; --gold2:#f2d9a8; --jade:#6fd3c8; --cin:#e2665c; --blue:#7fb8e6;
  --radius:14px;
  --serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:"SF Mono",Consolas,"Cascadia Mono",monospace;
  --shadow:0 18px 50px rgba(0,0,0,.5);
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans); background:
    radial-gradient(1200px 600px at 85% -10%, rgba(111,211,200,.10), transparent 60%),
    radial-gradient(900px 500px at -10% 20%, rgba(224,184,117,.07), transparent 55%),
    linear-gradient(160deg,var(--bg0),var(--bg1) 45%,var(--bg0));
  color:var(--txt); min-height:100vh; line-height:1.65; font-size:15px;
  background-attachment:fixed;
}
::selection{background:rgba(224,184,117,.32)}
a{color:var(--gold);text-decoration:none}
img{max-width:100%}
button{font-family:inherit}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:rgba(150,200,222,.22);border-radius:6px}
::-webkit-scrollbar-track{background:transparent}

/* ---------- 顶栏 ---------- */
.top{
  position:sticky;top:0;z-index:60;
  display:flex;align-items:center;gap:18px;
  padding:10px 18px;
  background:linear-gradient(180deg,rgba(5,10,14,.92),rgba(5,10,14,.72));
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand .logo{width:34px;height:34px;flex:0 0 auto}
.brand .b1{font-family:var(--serif);font-size:17px;font-weight:700;letter-spacing:2px;white-space:nowrap}
.brand .b2{font-size:11px;color:var(--mut);letter-spacing:3px;white-space:nowrap}
.nav{display:flex;gap:4px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{
  color:var(--mut);font-size:14px;padding:7px 13px;border-radius:9px;white-space:nowrap;
  border:1px solid transparent;transition:.2s;
}
.nav a:hover{color:var(--txt)}
.nav a.on{color:var(--gold2);background:rgba(224,184,117,.10);border-color:rgba(224,184,117,.35)}
.nav a i{font-style:normal;margin-right:4px}

/* ---------- 页脚 ---------- */
.foot{border-top:1px solid var(--line);margin-top:34px;padding:22px 18px 30px;text-align:center;color:var(--faint);font-size:12.5px}
.foot .disc{max-width:760px;margin:10px auto 0;line-height:1.7;font-size:12px}

/* ---------- 通用组件 ---------- */
.wrap{max-width:1180px;margin:0 auto;padding:20px 18px 40px}
h1.page-title{font-family:var(--serif);font-size:24px;letter-spacing:3px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
h1.page-title small{font-size:12.5px;color:var(--mut);letter-spacing:1px;font-weight:400;font-family:var(--sans)}
.lead{color:var(--mut);font-size:14px;margin-top:8px;max-width:860px}
.section-title{display:flex;align-items:center;gap:10px;margin:30px 0 14px}
.section-title .ln{width:4px;height:18px;border-radius:3px;background:linear-gradient(180deg,var(--gold),var(--cin))}
.section-title h2{font-family:var(--serif);font-size:19px;letter-spacing:2px}
.section-title .more{margin-left:auto;font-size:13px;color:var(--mut)}

.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.grid{display:grid;gap:14px}
.hint{color:var(--faint);font-size:12.5px}
.ztags{display:flex;flex-wrap:wrap;gap:7px}
.ztags b{background:rgba(111,211,200,.10);color:var(--jade);border:1px solid rgba(111,211,200,.3);padding:2px 10px;border-radius:20px;font-weight:500;font-size:13px}
.pill{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:20px;border:1px solid var(--line2);color:var(--mut);font-size:12.5px;cursor:pointer;background:transparent;transition:.18s;user-select:none}
.pill:hover{border-color:var(--gold);color:var(--gold2)}
.pill.on{background:linear-gradient(135deg,rgba(224,184,117,.22),rgba(224,184,117,.08));border-color:var(--gold);color:var(--gold2)}
.pill .dot{width:9px;height:9px;border-radius:50%;display:inline-block}
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line2);background:rgba(10,20,28,.4);color:var(--txt);padding:7px 14px;border-radius:10px;font-size:13.5px;cursor:pointer;transition:.18s}
.btn:hover{border-color:var(--gold);color:var(--gold2)}
.btn.gold{background:linear-gradient(135deg,#caa25f,#e6c48b);color:#241a08;border:none;font-weight:600}
.btn.ghost{background:transparent}

.chips{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- 穴位行 ---------- */
.pt-row{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:10px;cursor:pointer;border:1px solid transparent;transition:.15s}
.pt-row:hover{background:rgba(146,188,206,.07)}
.pt-row.on{background:linear-gradient(90deg,rgba(224,184,117,.16),rgba(224,184,117,.03));border-color:rgba(224,184,117,.4)}
.pt-dot{width:10px;height:10px;border-radius:50%;flex:0 0 auto;box-shadow:0 0 8px currentColor}
.pt-main{flex:1;min-width:0;display:flex;flex-direction:column;line-height:1.35}
.pt-main strong{font-size:15px;font-family:var(--serif);letter-spacing:1px}
.pt-main small{font-size:11.5px;color:var(--mut)}
.pt-side{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--faint);flex:0 0 auto}
.pt-side .brf{background:rgba(111,211,200,.12);color:var(--jade);padding:1px 8px;border-radius:12px;font-weight:500}
.fav-star2{color:var(--gold);font-size:14px}
.searchbox{position:relative}
.searchbox input{
  width:100%;background:rgba(8,16,22,.7);border:1px solid var(--line2);color:var(--txt);
  padding:10px 38px 10px 38px;border-radius:12px;font-size:14px;outline:none;transition:.2s;
}
.searchbox input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(224,184,117,.12)}
.searchbox .ic{position:absolute;left:12px;top:50%;transform:translateY(-50%);opacity:.6}
.searchbox .clr{position:absolute;right:9px;top:50%;transform:translateY(-50%);border:none;background:none;color:var(--mut);cursor:pointer;font-size:15px;display:none}
.searchbox.has .clr{display:block}

/* ---------- toast ---------- */
.xw-toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);background:rgba(10,20,28,.95);border:1px solid var(--line2);color:var(--gold2);padding:9px 18px;border-radius:24px;font-size:13.5px;z-index:300;opacity:0;transition:.3s;box-shadow:var(--shadow);pointer-events:none}
.xw-toast.on{opacity:1;transform:translate(-50%,0)}

/* ---------- 桌面三栏（3D页） ---------- */
.app3d{display:grid;grid-template-columns:296px 1fr 336px;gap:12px;padding:12px;height:calc(100vh - 66px);min-height:520px}
.panel{background:var(--panel2);border:1px solid var(--line);border-radius:16px;display:flex;flex-direction:column;min-height:0;overflow:hidden;backdrop-filter:blur(8px)}
.panel .p-head{padding:10px 14px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px;flex:0 0 auto}
.panel .p-head h3{font-size:13px;letter-spacing:2px;color:var(--mut);font-weight:600}
.panel .p-body{flex:1;overflow-y:auto;padding:10px}
#stage{position:relative;min-height:0;overflow:hidden;border-radius:16px;border:1px solid var(--line);background:radial-gradient(120% 90% at 50% 0%,#0b1720,#04080d 70%)}
#stage canvas{display:block;touch-action:none}

/* 移动端抽屉 */
.mobile-ui{display:none}

/* ---------- 网格卡片页 ---------- */
.mer-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.mer-card{position:relative;overflow:hidden;cursor:pointer;transition:.22s}
.mer-card:hover{transform:translateY(-3px);border-color:rgba(224,184,117,.55)}
.mer-card .bar{position:absolute;left:0;top:0;bottom:0;width:4px}
.mer-card h3{font-family:var(--serif);font-size:17px;letter-spacing:1px;display:flex;align-items:center;gap:8px}
.mer-card .meta{font-size:12px;color:var(--mut);margin:6px 0 8px}
.mer-card .desc{font-size:13px;color:var(--mut);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.mer-card .count-badge{position:absolute;right:12px;top:12px;background:rgba(146,188,206,.1);border:1px solid var(--line);color:var(--gold2);font-size:12px;padding:2px 10px;border-radius:20px}

/* 表格 */
table.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
.tbl th{color:var(--mut);font-weight:600;text-align:left;padding:8px 10px;border-bottom:1px solid var(--line2);letter-spacing:1px;font-size:12.5px;white-space:nowrap}
.tbl td{padding:7px 10px;border-bottom:1px solid var(--line)}
.tbl tr:hover td{background:rgba(146,188,206,.04)}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px}

/* 详情 */
.detail-pane{padding:16px;overflow-y:auto;flex:1}
.dt-head h2{font-family:var(--serif);font-size:26px;letter-spacing:2px}
.dt-head p{color:var(--mut);font-size:13px;margin-top:2px;font-family:var(--mono)}
.dt-sub{display:flex;flex-wrap:wrap;gap:8px;margin-top:9px}
.dt-sub span,.dt-sub span[style]{font-size:12px;padding:2px 10px;border-radius:16px;background:rgba(146,188,206,.09)}
.mid-tag{font-size:11.5px;color:var(--cin);border:1px solid rgba(226,102,92,.4);padding:1px 8px;border-radius:12px;margin-left:4px}
.dt-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.dt-tags em{font-style:normal;font-size:11.5px;border:1px solid;padding:1px 8px;border-radius:12px;background:rgba(146,188,206,.05)}
.dt-sec{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line)}
.dt-sec h4{font-size:13px;color:var(--gold2);letter-spacing:2px;margin-bottom:7px;display:flex;align-items:center;gap:6px}
.dt-sec p{font-size:14px;color:#cfe0e8;line-height:1.85}

/* 知识页版块 */
.kbox{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:16px}
.kbox h3{font-family:var(--serif);letter-spacing:1.5px;margin-bottom:10px;color:var(--gold2);font-size:16px}
.song{font-family:var(--serif);background:rgba(8,16,22,.5);border-left:3px solid var(--gold);padding:12px 16px;border-radius:0 10px 10px 0;line-height:2;font-size:14.5px;color:#d9e4ea;margin:6px 0}

/* 时辰页 */
.timer-big{font-family:var(--serif);font-size:clamp(28px,5vw,44px);letter-spacing:3px;color:var(--gold2);font-variant-numeric:tabular-nums}
.shichen-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:14px}
.res-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin-top:8px}
.res-card{background:linear-gradient(160deg,rgba(224,184,117,.10),rgba(111,211,200,.05));border:1px solid rgba(224,184,117,.35);border-radius:14px;padding:14px 16px}
.res-card .rc-tag{font-size:11.5px;color:var(--gold2);letter-spacing:1.5px}
.res-card h4{font-family:var(--serif);font-size:18px;margin:4px 0 2px;letter-spacing:1px}
.res-card p{font-size:12.5px;color:var(--mut);line-height:1.7}
.res-card .gua{font-size:30px;opacity:.25;position:absolute;right:12px;top:8px}
.mx{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:6px}

/* 测验 */
.quiz-q{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:14px}
.quiz-q .qq{font-size:16px;line-height:1.8;font-family:var(--serif)}
.quiz-q .qq b{color:var(--gold2)}
.quiz-opt{display:block;width:100%;text-align:left;background:rgba(8,16,22,.55);border:1px solid var(--line);color:var(--txt);padding:10px 14px;border-radius:11px;margin-top:9px;font-size:14.5px;cursor:pointer;transition:.15s}
.quiz-opt:hover{border-color:var(--gold)}
.quiz-opt.ok{border-color:var(--jade);background:rgba(111,211,200,.12);color:var(--jade)}
.quiz-opt.no{border-color:var(--cin);background:rgba(226,102,92,.12);color:#f2a39d}
.quiz-opt:disabled{cursor:default;opacity:.85}
.score-bar{height:8px;background:rgba(146,188,206,.12);border-radius:6px;overflow:hidden}
.score-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--cin),var(--gold),var(--jade));transition:.4s}

/* 响应式 */
@media (max-width:1020px){
  .app3d{grid-template-columns:250px 1fr 300px}
}
@media (max-width:900px){
  .app3d{grid-template-columns:1fr;grid-template-rows:1fr;height:calc(100dvh - 60px);padding:8px;gap:0}
  .mobile-ui{display:block}
  .left-col,.right-col{display:none}
  #stage{border-radius:14px;height:100%}
  .top{padding:8px 12px;gap:8px}
  .brand .b2{display:none}
  .nav a span.txt{display:none}
  .nav a{padding:7px 10px}
  .nav a i{margin:0}
  .detail-sheet{position:fixed;left:0;right:0;bottom:0;max-height:62dvh;background:rgba(7,12,17,.97);border:1px solid var(--line);border-radius:18px 18px 0 0;z-index:90;transform:translateY(105%);transition:transform .3s cubic-bezier(.2,.8,.2,1);overflow:hidden;display:flex;flex-direction:column}
  .detail-sheet.open{transform:none}
  .sheet-handle{padding:10px;display:flex;justify-content:center;flex:0 0 auto}
  .sheet-handle i{width:44px;height:4px;background:rgba(146,188,206,.35);border-radius:3px}
  .detail-sheet .detail-pane{padding:4px 18px 26px;max-height:calc(62dvh - 30px)}
  .qsearch-bar{position:fixed;left:12px;right:12px;top:calc(60px + 8px);z-index:50;display:flex;gap:8px;pointer-events:none}
  .qsearch-bar>*{pointer-events:auto}
  .qsearch-bar .searchbox{flex:1}
  .qlist-pop{position:fixed;inset:0;background:rgba(4,8,12,.92);backdrop-filter:blur(6px);z-index:95;display:none;flex-direction:column}
  .qlist-pop.open{display:flex}
  .qlist-pop .qp-head{padding:14px 16px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--line)}
  .qlist-pop .qp-body{flex:1;overflow-y:auto;padding:10px 14px 40px}
  .pt-row{padding:10px 8px}
  .stage-btns{position:fixed;right:12px;bottom:16px;display:flex;flex-direction:column;gap:8px;z-index:40}
  .foot{margin-top:8px}
}
@media (max-width:560px){
  h1.page-title{font-size:20px}
  .mer-grid{grid-template-columns:1fr 1fr}
}