/* ==========================================================
   心上心 · 心理咨询专业文库
   设计基调：纸感米白 + 深松绿，克制、稳定，符合心理专业场景
   ========================================================== */

:root{
  --ink:#1b2321;
  --ink-2:#47554f;
  --ink-3:#7c8b86;
  --ink-4:#a6afab;
  --line:#e5e1d8;
  --line-2:#efece5;
  --paper:#faf8f4;
  --card:#fff;
  --brand:#2f6f62;
  --brand-d:#245549;
  --brand-l:#e8f1ee;
  --brand-l2:#f2f7f5;
  --accent:#b8863b;
  --warn:#9a6b21;
  --danger:#b34a4a;
  --ok:#2f7a4a;

  --sh-1:0 1px 2px rgba(28,36,34,.05);
  --sh-2:0 1px 2px rgba(28,36,34,.04), 0 6px 20px rgba(28,36,34,.07);
  --sh-3:0 12px 40px rgba(24,32,30,.16);
  --r:12px;
  --r-sm:8px;

  --hd-h:64px;
  --pad:20px;
  --side-w:248px;
  --max-w:1360px;

  --ease:cubic-bezier(.32,.72,0,1);
}

*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none !important}

html{-webkit-text-size-adjust:100%}
html,body{margin:0;padding:0}

body{
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:14px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  -webkit-tap-highlight-color:transparent;
  overflow-x:hidden;
}
body.lock{overflow:hidden}

a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
svg{display:block}
h3,h4,p,dl,dd{margin:0}
mark{background:#fff0c2;color:inherit;border-radius:2px;padding:0 1px}

:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.vh{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.skip{position:fixed;top:-60px;left:12px;z-index:200;background:var(--brand);color:#fff;
  padding:10px 16px;border-radius:0 0 8px 8px;transition:top .2s}
.skip:focus{top:0}

::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#d8d4ca;border-radius:8px;border:3px solid var(--paper)}
::-webkit-scrollbar-thumb:hover{background:#c6c1b4}
::-webkit-scrollbar-track{background:transparent}

/* ================= 通用按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:34px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;color:var(--ink-2);font-size:13px;white-space:nowrap;
  transition:background .15s,border-color .15s,color .15s,transform .1s;
}
.btn:hover{background:#f7f5f0;border-color:#d3cec2;color:var(--ink)}
.btn:active{transform:scale(.98)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand-d);border-color:var(--brand-d)}
.btn.ghost{background:transparent}
.btn-ico{width:15px;height:15px;flex-shrink:0}
.btn .lbl-sm{display:none}

.ibtn{
  display:inline-grid;place-items:center;width:34px;height:34px;border-radius:var(--r-sm);
  color:var(--ink-2);transition:background .15s,color .15s;flex-shrink:0;
}
.ibtn svg{width:19px;height:19px}
.ibtn:hover{background:#f0ece4;color:var(--ink)}

/* ================= 顶栏 ================= */
.hd{
  position:sticky;top:0;z-index:50;
  background:rgba(250,248,244,.94);
  backdrop-filter:saturate(1.5) blur(12px);
  -webkit-backdrop-filter:saturate(1.5) blur(12px);
  border-bottom:1px solid var(--line);
  padding-top:env(safe-area-inset-top);
}
.hd-in{
  max-width:var(--max-w);margin:0 auto;padding:0 var(--pad);height:var(--hd-h);
  display:flex;align-items:center;gap:16px;
}
.hd-menu{display:none}

.brand{display:flex;align-items:center;gap:9px;flex-shrink:0;min-width:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(150deg,#3b8778,#224f44);
  display:grid;place-items:center;box-shadow:0 3px 10px rgba(47,111,98,.26);
}
.brand-mark svg{width:20px;height:20px}
.brand-txt{display:flex;flex-direction:column;justify-content:center;min-width:0}
.brand-txt b{font-size:15px;font-weight:600;letter-spacing:.3px;line-height:1.25;white-space:nowrap}
.brand-txt i{font-style:normal;font-size:11px;color:var(--ink-3);letter-spacing:.3px;line-height:1.3;white-space:nowrap}

/* 搜索 */
.srch{position:relative;flex:1;max-width:580px;min-width:0}
.srch-ico{
  position:absolute;left:13px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;color:var(--ink-4);pointer-events:none;
}
.srch input{
  width:100%;height:38px;border:1px solid var(--line);border-radius:19px;
  background:#fff;padding:0 40px 0 38px;font-size:13.5px;outline:none;
  transition:border-color .18s,box-shadow .18s,background .18s;
  -webkit-appearance:none;appearance:none;
}
.srch input::placeholder{color:var(--ink-4)}
.srch input:focus{border-color:#9dc2b8;box-shadow:0 0 0 3px rgba(47,111,98,.1)}
.srch-clear{
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;display:grid;place-items:center;color:var(--ink-3);
}
.srch-clear svg{width:17px;height:17px}
.srch-clear:hover{color:var(--ink);background:#f2efe8}

.pop{
  position:absolute;left:0;right:0;top:calc(100% + 8px);
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:0 16px 44px rgba(24,32,30,.14);
  padding:6px;max-height:min(60vh,420px);overflow:auto;z-index:60;
  overscroll-behavior:contain;
}
.pop-sec{font-size:11px;letter-spacing:1.2px;color:var(--ink-4);padding:8px 10px 4px;font-weight:600}
.pop-it{
  display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;
  cursor:pointer;font-size:13px;color:var(--ink-2);transition:background .12s;
}
.pop-it:hover,.pop-it.on{background:var(--brand-l2);color:var(--brand-d)}
.pop-it b{font-weight:500;color:var(--ink);flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pop-it .pop-cat{font-size:11.5px;color:var(--ink-4);flex-shrink:0}
.pop-ext{
  width:30px;height:22px;border-radius:4px;flex-shrink:0;display:grid;place-items:center;
  font-size:9px;font-weight:700;letter-spacing:.3px;text-transform:uppercase;
  background:#f2efe8;color:var(--ink-3);
}
.pop-empty{padding:18px 12px;text-align:center;color:var(--ink-4);font-size:12.5px}

.hd-act{margin-left:auto;display:flex;align-items:center;gap:8px;flex-shrink:0}

/* ================= 布局 ================= */
.shell{
  max-width:var(--max-w);margin:0 auto;
  padding:20px var(--pad) 80px;
  display:grid;grid-template-columns:var(--side-w) minmax(0,1fr);gap:24px;
  align-items:start;
}

/* ---- 侧栏 ---- */
.side{
  position:sticky;top:calc(var(--hd-h) + 20px);
  max-height:calc(100vh - var(--hd-h) - 40px);
  display:flex;flex-direction:column;
  min-height:0;
  padding-right:2px;
}
.side-hd{display:none}
.side-bd{overflow-y:auto;overscroll-behavior:contain;flex:1;min-height:0;padding-right:2px;padding-bottom:6px}
.side-ft{flex-shrink:0;padding-top:14px}

.nav-group{margin-bottom:18px}
.nav-group h4{
  margin:0 0 6px;padding-left:10px;font-size:11px;font-weight:600;
  letter-spacing:1.5px;color:var(--ink-4);text-transform:uppercase;
}
.nav-list{display:flex;flex-direction:column;gap:1px}

.nav-item{
  display:flex;align-items:center;gap:8px;
  min-height:32px;padding:6px 10px;border-radius:7px;
  color:var(--ink-2);font-size:13.2px;cursor:pointer;
  transition:background .13s,color .13s;
  user-select:none;
}
.nav-item:hover{background:#f1ede5;color:var(--ink)}
.nav-item.on{background:var(--brand-l);color:var(--brand-d);font-weight:600}
.nav-item .lbl{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nav-item .cnt{
  font-size:11.5px;color:var(--ink-4);font-variant-numeric:tabular-nums;flex-shrink:0;
  font-weight:400;
}
.nav-item.on .cnt{color:var(--brand)}

.nav-lvl1{font-weight:600;color:var(--ink);margin-top:4px;font-size:13.4px}
.nav-lvl1 .caret{
  width:14px;height:14px;flex-shrink:0;color:var(--ink-4);
  transition:transform .2s var(--ease);margin-left:-2px;
}
.nav-lvl1.open .caret{transform:rotate(90deg)}
.nav-lvl1.in-path{color:var(--brand-d);font-weight:600;background:var(--brand-l2)}
.nav-lvl1.in-path .caret{color:var(--brand)}
.nav-lvl1 .cnt{margin-right:2px}

.nav-sub{display:flex;flex-direction:column;gap:1px;overflow:hidden}
.nav-sub[hidden]{display:none}
.nav-sub .nav-item{
  font-size:12.6px;padding:5px 8px 5px 14px;margin-left:9px;
  border-left:1px solid var(--line-2);
  border-radius:0 7px 7px 0;
}
.nav-sub .nav-item.on{border-left-color:var(--brand)}

.stats{
  border:1px solid var(--line);border-radius:var(--r);background:#fff;
  padding:12px 14px;font-size:12.5px;color:var(--ink-2);
}
.stats div{display:flex;justify-content:space-between;align-items:baseline;padding:2.5px 0}
.stats span{color:var(--ink-3)}
.stats b{color:var(--ink);font-variant-numeric:tabular-nums;font-weight:600}

/* ---- 主区 ---- */
.main{min-width:0}

.crumb{
  display:flex;align-items:center;gap:6px;flex-wrap:wrap;
  font-size:12.5px;color:var(--ink-3);margin-bottom:12px;min-height:20px;
}
.crumb button{color:var(--ink-3);font-size:12.5px;transition:color .13s}
.crumb button:hover{color:var(--brand)}
.crumb .sep{color:var(--ink-4);user-select:none}
.crumb b{color:var(--ink);font-weight:600}

.toolbar{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-bottom:14px;
}
.flt-btn{display:none;position:relative}
.dot-badge{
  position:absolute;top:-5px;right:-5px;min-width:16px;height:16px;padding:0 4px;
  border-radius:8px;background:var(--brand);color:#fff;font-style:normal;
  font-size:10.5px;font-weight:600;line-height:16px;text-align:center;
  box-shadow:0 0 0 2px var(--paper);
}
.chips{display:flex;gap:7px;flex-wrap:wrap;align-items:center;flex:1;min-width:0}
.chip{
  display:inline-flex;align-items:center;gap:5px;
  height:28px;padding:0 9px 0 11px;border:1px solid var(--line);border-radius:15px;
  background:#fff;font-size:12.5px;color:var(--ink-2);transition:.14s;white-space:nowrap;
}
.chip:hover{border-color:#cbc5b8;background:#faf8f4}
.chip svg{width:13px;height:13px;color:var(--ink-4);flex-shrink:0}
.chip:hover svg{color:var(--danger)}
.chip.all{background:var(--brand-l);border-color:transparent;color:var(--brand-d);font-weight:500}
.chip.all:hover{background:#dceae5}

.tools{margin-left:auto;display:flex;align-items:center;gap:8px;flex-shrink:0}
.count{font-size:12.5px;color:var(--ink-3);white-space:nowrap;font-variant-numeric:tabular-nums}
.count b{color:var(--ink);font-weight:600}

.sel-wrap{position:relative;display:inline-flex;align-items:center}
.sel{
  height:30px;padding:0 26px 0 10px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;font-size:12.5px;color:var(--ink-2);outline:none;cursor:pointer;
  -webkit-appearance:none;appearance:none;
}
.sel:hover{border-color:#cbc5b8}
.sel-ico{position:absolute;right:6px;width:15px;height:15px;color:var(--ink-3);pointer-events:none}

.vsw{display:flex;gap:2px;padding:2px;background:#f1ede5;border-radius:9px}
.vsw-btn{
  width:28px;height:26px;border-radius:7px;display:grid;place-items:center;
  color:var(--ink-3);transition:.14s;
}
.vsw-btn svg{width:15px;height:15px}
.vsw-btn.on{background:#fff;color:var(--brand);box-shadow:var(--sh-1)}

/* ---- 列表 ---- */
.list{display:flex;flex-direction:column;gap:9px}

.item{
  display:flex;gap:13px;align-items:flex-start;
  padding:13px 15px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r);
  cursor:pointer;transition:border-color .16s,box-shadow .16s,transform .16s;
  position:relative;
}
.item:hover{border-color:#cbd7d2;box-shadow:var(--sh-2);transform:translateY(-1px)}
/* 触屏设备不保留 hover 悬浮效果 */
@media (hover:none){
  .item:hover{border-color:var(--line);box-shadow:none;transform:none}
  .item:active{border-color:#c3d3cd;background:#fcfbf8}
}
.item:active{transform:scale(.996)}

.ext{
  width:38px;height:46px;border-radius:7px;flex-shrink:0;
  display:grid;place-items:center;font-size:10px;font-weight:700;
  letter-spacing:.2px;text-transform:uppercase;overflow:hidden;
  position:relative;
}
.ext span{transform:scale(.94)}
.ext.pdf{background:#fdeceb;color:#b34a4a}
.ext.doc,.ext.docx{background:#eaf0fb;color:#3f61a8}
.ext.ppt,.ext.pptx{background:#fdf0e5;color:#b0702b}
.ext.caj{background:#f1ecfb;color:#6b4fa8}
.ext.mp4,.ext.flv,.ext.avi,.ext.rmvb,.ext.wmv,.ext.mkv,.ext.mov{background:#e8f3ee;color:#2f6f62}
.ext.mp3,.ext.wav,.ext.m4a,.ext.aac,.ext.flac{background:#ecf3f9;color:#3b7196}
.ext.xls,.ext.xlsx,.ext.csv{background:#eaf6eb;color:#3d7a45}
.ext.zip,.ext.rar{background:#f2f0ea;color:#7a7264}
.ext.img,.ext.jpg,.ext.png,.ext.jpeg{background:#fdeef4;color:#a84a72}
.ext.other{background:#f2f0ea;color:#7a7264}

.item-main{flex:1;min-width:0}
.item-title{
  font-size:14.2px;font-weight:600;color:var(--ink);line-height:1.45;
  margin-bottom:5px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.item-meta{
  display:flex;align-items:center;gap:7px;flex-wrap:wrap;
  font-size:11.5px;color:var(--ink-4);line-height:1.7;
}
.tag{
  display:inline-block;padding:1px 7px;border-radius:4px;
  font-size:11.5px;background:#f4f1ea;color:var(--ink-2);white-space:nowrap;
}
.tag.b{background:var(--brand-l);color:var(--brand-d)}
.tag.p{background:#f7f3ea;color:#8a7238}
.sep-dot{width:2px;height:2px;border-radius:50%;background:var(--ink-4);flex-shrink:0}
.state{display:inline-flex;align-items:center;gap:4px;font-size:11.5px;white-space:nowrap}
.state::before{content:"";width:5px;height:5px;border-radius:50%;background:currentColor}
.state.ok{color:var(--ok)}
.state.pending{color:var(--warn)}
.item-path{
  font-size:11.5px;color:var(--ink-4);margin-top:5px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* 网格视图 */
.list.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.list.grid .item{flex-direction:column;gap:10px;padding:15px;height:100%;min-width:0}
.list.grid .ext{width:34px;height:34px;border-radius:8px;font-size:9px}
.list.grid .item-title{-webkit-line-clamp:3;font-size:14px;word-break:break-word}
.list.grid .item-path{display:none}

/* 骨架屏 */
.sk{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:13px 15px;
  display:flex;gap:13px;align-items:flex-start}
.sk-line{background:linear-gradient(90deg,#f0ece4 25%,#f6f3ec 37%,#f0ece4 63%);
  background-size:400% 100%;animation:shine 1.3s ease infinite;border-radius:5px}
.sk .a{width:38px;height:46px;border-radius:7px;flex-shrink:0}
.sk .b{flex:1}
.sk .b i{display:block;height:11px;margin-bottom:8px}
.sk .b i:nth-child(1){width:62%}
.sk .b i:nth-child(2){width:88%;height:10px}
.sk .b i:nth-child(3){width:40%;height:9px;margin-bottom:0}
@keyframes shine{0%{background-position:100% 0}100%{background-position:-100% 0}}

/* 空状态 */
.empty{
  text-align:center;padding:64px 20px;color:var(--ink-3);
  background:#fff;border:1px dashed var(--line);border-radius:var(--r);
}
.empty svg{width:44px;height:44px;margin:0 auto 14px;color:#d5d0c4}
.empty b{display:block;font-size:15px;color:var(--ink-2);font-weight:600;margin-bottom:6px}
.empty p{font-size:12.5px;color:var(--ink-3);margin-bottom:16px}
.empty .btn{margin:0 4px}

/* 分页 */
.pager{display:flex;justify-content:center;align-items:center;gap:6px;margin-top:26px;flex-wrap:wrap}
.pager button{
  min-width:34px;height:34px;padding:0 9px;border:1px solid var(--line);border-radius:8px;
  background:#fff;font-size:13px;color:var(--ink-2);transition:.14s;
  font-variant-numeric:tabular-nums;
}
.pager button:hover:not(:disabled){border-color:#cbc5b8;background:#faf8f4}
.pager button.on{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.pager button:disabled{opacity:.35;cursor:not-allowed}
.pager .gap{color:var(--ink-4);font-size:12px;padding:0 2px;user-select:none}
.pager .pinfo{display:none;font-size:12.5px;color:var(--ink-3);margin:0 8px;font-variant-numeric:tabular-nums}

/* ================= 遮罩 ================= */
.scrim{
  position:fixed;inset:0;z-index:55;background:rgba(24,32,30,.42);
  backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);
  animation:fade .2s ease;
}
.dscrim{
  position:fixed;inset:0;z-index:60;background:rgba(24,32,30,.42);
  backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);
  animation:fade .2s ease;
}
@keyframes fade{from{opacity:0}to{opacity:1}}

/* ================= 详情抽屉 ================= */
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:61;
  width:min(720px,100%);
  background:var(--paper);
  display:flex;flex-direction:column;
  box-shadow:-14px 0 44px rgba(24,32,30,.16);
  animation:slideR .3s var(--ease);
}
@keyframes slideR{from{transform:translateX(6%)}to{transform:none}}

.drawer-hd{
  display:flex;align-items:flex-start;gap:10px;
  padding:14px 18px;border-bottom:1px solid var(--line);background:#fff;
  padding-top:calc(14px + env(safe-area-inset-top));
  flex-shrink:0;
}
.drawer-hd h3{
  flex:1;min-width:0;font-size:15.5px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  padding-top:4px;
}
.drawer-x{display:none}
.drawer-bd{flex:1;overflow-y:auto;overscroll-behavior:contain;padding:18px 18px calc(40px + env(safe-area-inset-bottom))}

.kv{
  display:grid;grid-template-columns:76px minmax(0,1fr);gap:9px 14px;
  font-size:13px;margin-bottom:18px;
}
.kv dt{color:var(--ink-3);font-size:12.5px;padding-top:1px}
.kv dd{color:var(--ink);word-break:break-word;min-width:0}
.kv dd.clamp2{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;
}
.kv dd .sub-key{color:var(--ink-4)}
.kv dd.mono{font-size:12px;color:var(--ink-3);font-family:ui-monospace,Menlo,Consolas,monospace}

.sec-t{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:11.5px;letter-spacing:1.4px;color:var(--ink-4);font-weight:600;
  margin:0 0 9px;
}
.sec-t em{font-style:normal;letter-spacing:0;font-weight:400;font-size:12px;color:var(--ink-4)}

.basis{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:8px;padding:11px 13px;font-size:13px;color:var(--ink-2);
  margin-bottom:18px;line-height:1.65;
}

.pv{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff;margin-bottom:16px}
.pv iframe{width:100%;height:min(66vh,560px);border:0;display:block;background:#fff}
.pv video{width:100%;max-height:min(62vh,520px);display:block;background:#0d1211}
.pv audio{width:100%;display:block;padding:14px}
.pv img{width:100%;height:auto;display:block}
.pv .ph{padding:34px 20px;text-align:center;color:var(--ink-3);font-size:13px;line-height:1.8}
.pv .ph b{display:block;color:var(--ink-2);margin-bottom:4px;font-weight:600}
.pv .ph .btn{margin-top:12px}

.dact{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:20px}
.dact-note{margin:0;flex:1 1 100%;color:var(--warn);font-size:12.5px;line-height:1.6}
.dact .btn{height:36px;padding:0 15px}

.sib{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:18px}
.sib button{
  max-width:100%;font-size:12.5px;background:#fff;border:1px solid var(--line);
  border-radius:15px;padding:5px 12px;color:var(--ink-2);transition:.14s;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.sib button:hover{border-color:#cbc5b8;color:var(--brand);background:var(--brand-l2)}
.sib button.bad{color:var(--ink-3);border-style:dashed}
.sib button i{
  font-style:normal;margin-left:5px;font-size:10.5px;color:var(--warn);
}

/* ================= AI 面板 ================= */
.ai{
  position:fixed;top:0;right:0;bottom:0;z-index:62;width:min(480px,100%);
  background:#fff;display:flex;flex-direction:column;
  box-shadow:-12px 0 40px rgba(24,32,30,.15);
  animation:slideR .3s var(--ease);
}
.ai-hd{
  display:flex;align-items:center;gap:9px;padding:12px 14px;
  border-bottom:1px solid var(--line);flex-shrink:0;
  padding-top:calc(12px + env(safe-area-inset-top));
}
.ai-hd-t{flex:1;min-width:0}
.ai-hd b{display:block;font-size:14.5px;font-weight:600}
.ai-hd small{display:block;font-size:11px;color:var(--ink-4);margin-top:1px}
.ai-back{display:none}

.ai-bd{
  flex:1;overflow-y:auto;overscroll-behavior:contain;
  padding:16px 14px;display:flex;flex-direction:column;gap:12px;
}
.msg{max-width:100%;font-size:13.5px;line-height:1.75;word-break:break-word}
.msg.user{
  align-self:flex-end;background:var(--brand);color:#fff;
  padding:9px 13px;border-radius:13px 13px 3px 13px;max-width:86%;
  white-space:pre-wrap;
}
.msg.bot{
  align-self:flex-start;background:#f8f6f1;padding:11px 13px;
  border:1px solid rgba(28,36,34,.05);
  border-radius:13px 13px 13px 3px;max-width:96%;
}
.msg.bot .md p{margin:0 0 8px}
.msg.bot .md p:last-child{margin-bottom:0}
.msg.bot .md h5{
  margin:12px 0 5px;font-size:13px;font-weight:600;color:var(--brand-d);
  letter-spacing:.2px;
}
.msg.bot .md h5:first-child{margin-top:0}
.msg.bot .md ul,.msg.bot .md ol{margin:4px 0 8px;padding-left:19px}
.msg.bot .md li{margin:2px 0}
.msg.bot .md strong{font-weight:600;color:var(--ink)}
.msg.bot .md code{
  background:#efece4;border-radius:4px;padding:1px 5px;font-size:12px;
  font-family:ui-monospace,Menlo,Consolas,monospace;
}
.msg.bot .md hr{border:0;border-top:1px solid var(--line);margin:10px 0}
.msg.bot .md blockquote{
  margin:8px 0;padding:7px 11px;border-left:2px solid #d9d3c4;
  background:#fbf9f4;color:var(--ink-2);font-size:13px;border-radius:0 6px 6px 0;
}
.msg.sys{
  align-self:center;color:var(--ink-3);font-size:11.5px;background:#f4f2ec;
  padding:5px 11px;border-radius:11px;text-align:center;max-width:92%;
}
.msg.err{color:var(--danger)}
.typing{display:inline-flex;gap:3px;align-items:center;height:16px;vertical-align:-3px}
.typing i{width:5px;height:5px;border-radius:50%;background:var(--brand);opacity:.5;
  animation:bounce 1.1s infinite}
.typing i:nth-child(2){animation-delay:.16s}
.typing i:nth-child(3){animation-delay:.32s}
@keyframes bounce{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}

.msg-act{display:flex;gap:8px;margin-top:8px;padding-top:8px;border-top:1px solid rgba(0,0,0,.06)}
.msg-act button{
  display:inline-flex;align-items:center;gap:4px;font-size:11.5px;color:var(--ink-3);
  padding:3px 4px;border-radius:5px;transition:.13s;
}
.msg-act button:hover{color:var(--brand);background:rgba(47,111,98,.07)}
.msg-act svg{width:13px;height:13px}

.ai-ft{
  border-top:1px solid var(--line);padding:10px 12px;
  padding-bottom:calc(10px + env(safe-area-inset-bottom));
  background:#fff;flex-shrink:0;
}
.ai-ctx{
  font-size:11px;color:var(--ink-4);margin-bottom:8px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.ai-input{display:flex;gap:8px;align-items:flex-end}
.ai-input textarea{
  flex:1;min-width:0;resize:none;height:40px;max-height:132px;
  border:1px solid var(--line);border-radius:11px;padding:9px 12px;
  font-size:13.5px;line-height:1.55;outline:none;background:#fbfaf7;
  transition:border-color .16s,box-shadow .16s,background .16s;
}
.ai-input textarea:focus{border-color:#9dc2b8;box-shadow:0 0 0 3px rgba(47,111,98,.09);background:#fff}
.send{
  width:40px;height:40px;border-radius:11px;background:var(--brand);
  display:grid;place-items:center;flex-shrink:0;transition:.15s;
}
.send svg{width:17px;height:17px}
.send:hover:not(:disabled){background:var(--brand-d)}
.send:disabled{opacity:.45;cursor:not-allowed}
.send.stop{background:var(--ink-2)}

/* ================= 回到顶部 ================= */
.totop{
  position:fixed;right:20px;bottom:calc(84px + env(safe-area-inset-bottom));z-index:45;
  width:42px;height:42px;border-radius:50%;background:#fff;
  border:1px solid var(--line);box-shadow:var(--sh-2);
  display:grid;place-items:center;color:var(--ink-2);
  animation:pop .2s ease;transition:.15s;
}
.totop svg{width:18px;height:18px}
.totop:hover{color:var(--brand);border-color:#cbd7d2;transform:translateY(-2px)}
@keyframes pop{from{opacity:0;transform:scale(.85)}to{opacity:1;transform:none}}

/* ================= 登录弹窗 ================= */
.modal{
  position:fixed;inset:0;z-index:80;background:rgba(24,32,30,.5);
  backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);
  display:grid;place-items:center;padding:20px;
  animation:fade .18s ease;
}
.modal-card{
  position:relative;width:min(352px,100%);background:#fff;border-radius:16px;
  padding:24px 22px;box-shadow:0 26px 64px rgba(20,30,28,.26);
  animation:modalIn .22s var(--ease);
}
@keyframes modalIn{from{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:none}}
.modal-card h3{margin:0 0 4px;font-size:17px;font-weight:600}
.modal-card p{margin:0 0 18px;font-size:12.5px;color:var(--ink-3)}
.modal-x{position:absolute;right:10px;top:10px}
.modal-card label{display:block;font-size:12px;color:var(--ink-2);margin-bottom:5px}
.modal-card input{
  width:100%;height:40px;border:1px solid var(--line);border-radius:9px;
  padding:0 12px;font-size:14px;outline:none;margin-bottom:13px;
  transition:border-color .16s,box-shadow .16s;
}
.modal-card input:focus{border-color:#9dc2b8;box-shadow:0 0 0 3px rgba(47,111,98,.09)}
.modal-card .err{color:var(--danger);font-size:12px;min-height:17px;margin-bottom:6px}
.modal-card button[type=submit]{
  width:100%;height:42px;border-radius:10px;background:var(--brand);
  color:#fff;font-size:14px;font-weight:600;transition:.15s;
}
.modal-card button[type=submit]:hover{background:var(--brand-d)}
.modal-card button[type=submit]:disabled{opacity:.6;cursor:not-allowed}

/* ================= Toast ================= */
.toast{
  position:fixed;left:50%;bottom:calc(28px + env(safe-area-inset-bottom));
  transform:translateX(-50%);
  background:rgba(28,36,34,.92);color:#fff;font-size:13px;
  padding:9px 18px;border-radius:20px;z-index:120;
  box-shadow:0 8px 24px rgba(0,0,0,.2);
  animation:toastIn .2s ease;max-width:82vw;text-align:center;
}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translate(-50%,0)}}

/* ==========================================================
   响应式 —— 平板（≤1080px）：侧栏收窄
   ========================================================== */
@media (max-width:1080px){
  :root{--side-w:214px}
  .shell{gap:20px}
  .srch{max-width:400px}
}

/* ==========================================================
   响应式 —— 窄屏（≤940px）：侧栏改为抽屉
   ========================================================== */
@media (max-width:940px){
  :root{--hd-h:58px;--pad:12px}

  .hd-in{gap:10px}
  .hd-menu{display:grid}
  .brand-txt i{display:none}
  .brand-txt b{font-size:14.5px}
  .brand-mark{width:32px;height:32px;border-radius:9px}
  .brand-mark svg{width:18px;height:18px}
  .srch{max-width:none}
  .hd-act .btn .lbl-lg{display:none}
  .hd-act .btn .lbl-sm{display:inline}
  .hd-act .btn{padding:0 10px;min-width:34px}
  .hd-act .btn.primary{width:auto;padding:0 13px}

  .shell{
    display:block;
    padding:14px var(--pad) calc(76px + env(safe-area-inset-bottom));
  }

  /* 侧栏 = 抽屉 */
  .side{
    position:fixed;left:0;top:0;bottom:0;z-index:56;
    width:min(300px,84vw);
    max-height:none;
    background:var(--paper);
    box-shadow:14px 0 44px rgba(24,32,30,.18);
    transform:translateX(-102%);
    transition:transform .3s var(--ease);
    padding:0;
    display:flex;flex-direction:column;
    will-change:transform;
  }
  .side.open{transform:none}
  .side-hd{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:12px 12px 12px 16px;border-bottom:1px solid var(--line);
    padding-top:calc(12px + env(safe-area-inset-top));
    flex-shrink:0;background:#fff;
  }
  .side-hd b{font-size:14.5px}
  .side-bd{padding:14px 10px 8px}
  .side-ft{padding:12px 10px calc(14px + env(safe-area-inset-bottom))}
  .stats{background:#fff}
  .nav-item{min-height:40px;font-size:14px}
  .nav-sub .nav-item{font-size:13px;min-height:36px}

  /* 工具栏吸顶 */
  .toolbar{
    position:sticky;top:calc(var(--hd-h) + env(safe-area-inset-top));z-index:30;
    background:rgba(250,248,244,.96);
    backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
    margin:0 0 12px;
    padding:8px 0;
    border-bottom:1px solid transparent;
  }
  .toolbar.stuck{border-bottom-color:var(--line)}
  .vsw{display:none}
  .chips{
    flex:1 1 0%;min-width:0;
    flex-wrap:nowrap;overflow-x:auto;overflow-y:hidden;
    -webkit-overflow-scrolling:touch;scrollbar-width:none;
  }
  .chips::-webkit-scrollbar{display:none}
  .chips:empty{display:none}
  .chips .chip{flex:0 0 auto}
  /* 右侧渐隐，提示可横向滚动 */
  .chips{
    -webkit-mask-image:linear-gradient(to right,#000 calc(100% - 22px),transparent);
    mask-image:linear-gradient(to right,#000 calc(100% - 22px),transparent);
  }
  .toolbar{gap:12px}
  .crumb.is-plain{display:none}
  .tools{margin-left:auto}
  .crumb{margin-bottom:8px;font-size:12px}

  .list.grid{grid-template-columns:repeat(2,minmax(0,1fr))}

  /* 抽屉全屏 */
  .drawer{width:100%;box-shadow:none;animation:slideUp .3s var(--ease)}
  .drawer-hd{padding:12px 12px;padding-top:calc(12px + env(safe-area-inset-top))}
  .drawer-hd h3{font-size:15px;padding-top:5px}
  .drawer-bd{padding:16px 14px calc(36px + env(safe-area-inset-bottom))}
  .pv iframe{height:58vh}

  /* AI 全屏 */
  .ai{width:100%;box-shadow:none;animation:slideUp .3s var(--ease)}
  .ai-back{display:grid}
  .ai-hd{padding:10px 12px;padding-top:calc(10px + env(safe-area-inset-top))}
  .msg.bot{max-width:100%}

  .totop{right:14px;bottom:calc(20px + env(safe-area-inset-bottom));width:38px;height:38px}
}

@keyframes slideUp{from{transform:translateY(3%)}to{transform:none}}

/* ==========================================================
   响应式 —— 手机（≤600px）
   ========================================================== */
@media (max-width:600px){
  :root{--pad:10px}
  body{font-size:14.5px}

  /* 手机上分类面板改由「筛选」按钮唤出，省下顶栏空间给搜索 */
  .hd-menu{display:none}
  .flt-btn{display:inline-flex}
  .chips{
    order:3;flex:0 0 100%;flex-basis:100%;
    margin-top:4px;padding-bottom:1px;
  }

  .hd-in{height:var(--hd-h);gap:8px}
  .brand-txt{display:none}
  .brand-mark{width:34px;height:34px}
  .srch input{height:36px;font-size:14px;padding-left:36px;border-radius:18px}
  .hd-act .btn.primary{height:32px;padding:0 12px;font-size:13px}

  .shell{padding:12px var(--pad) calc(72px + env(safe-area-inset-bottom))}
  .toolbar{padding-top:7px;padding-bottom:7px}
  .count{font-size:12px}
  .sel{height:30px;font-size:12.5px}

  .item{padding:11px 12px;gap:11px;border-radius:11px}
  .ext{width:34px;height:42px;font-size:9.5px;border-radius:6px}
  .item-title{font-size:14px;line-height:1.42}
  .item-meta{font-size:11px;gap:6px;flex-wrap:wrap;overflow:hidden}
  .item-meta .tag.b{max-width:56%;overflow:hidden;text-overflow:ellipsis}
  .item-meta .tag.p,.item-meta .sep-dot{display:none}
  .item-meta .state{margin-left:auto}
  .tag{font-size:11px;padding:1px 6px}
  .item-path{font-size:11px}

  .list.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
  .list.grid .item{padding:12px}
  /* 网格卡片信息密度有限，归档状态留给详情页 */
  .list.grid .item-meta .state{display:none}
  .list.grid .item-title{font-size:13px;-webkit-line-clamp:3}

  .empty{padding:48px 16px}

  /* 分页精简 */
  .pager .num{display:none}
  .pager .gap{display:none}
  .pager .pinfo{display:inline}
  .pager{margin-top:20px}
  .pager button{min-width:38px;height:38px}

  .kv{grid-template-columns:66px minmax(0,1fr);gap:8px 12px;font-size:12.5px}
  .drawer-hd h3{font-size:14.5px}
  .sec-t{font-size:11px}
  .basis{font-size:12.5px;padding:10px 12px}
  .dact .btn{
    flex:1 1 auto;min-width:0;height:auto;min-height:36px;
    padding:7px 10px;white-space:normal;line-height:1.25;text-align:center;
  }
}

/* 极窄 */
@media (max-width:360px){
  .list.grid{grid-template-columns:minmax(0,1fr)}
  .hd-act .btn.primary{padding:0 10px;font-size:12.5px}
}

/* 横屏手机 */
@media (max-width:940px) and (orientation:landscape){
  .ai-bd{padding:10px 12px}
  .pv iframe{height:70vh}
}

/* 减少动效偏好 */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
}

/* 打印 */
@media print{
  .hd,.side,.pager,.totop,.ai,.drawer,.dscrim,.scrim{display:none !important}
  .shell{display:block;padding:0}
  .item{break-inside:avoid;box-shadow:none}
}


/* ==========================================================
   AI 面板：等待态 / 引用卡片 / 推荐问题
   ========================================================== */
.ai-wait{
  display:flex;align-items:center;gap:8px;color:var(--ink-3);font-size:13px;
}
.ai-wait .typing i{background:var(--brand)}
.ai-wait em{font-style:normal;color:var(--ink-2)}
.ai-wait .tick{
  margin-left:auto;font-variant-numeric:tabular-nums;font-size:12px;
  color:var(--ink-4);background:rgba(28,36,34,.04);border-radius:999px;padding:1px 8px;
}

.ai-refs{margin:0 0 10px;padding:0 0 9px;border-bottom:1px dashed rgba(28,36,34,.1)}
.ai-refs .refs-hd{
  display:flex;align-items:center;gap:6px;width:100%;padding:5px 9px;
  font:inherit;font-size:11.5px;color:var(--ink-2);background:#f6f5f0;
  border:1px solid var(--line);border-radius:8px;cursor:pointer;text-align:left;
  transition:border-color .15s,background .15s;
}
.ai-refs .refs-hd:hover{border-color:#c9d8d2;background:var(--brand-l2)}
.ai-refs .refs-hd b{font-weight:600;color:var(--ink)}
.ai-refs .refs-hd em.bad{
  font-style:normal;margin-left:5px;color:var(--warn);
}
.ai-refs .refs-hd .caret{
  margin-left:auto;width:0;height:0;flex:0 0 auto;
  border-left:4px solid transparent;border-right:4px solid transparent;
  border-top:5px solid var(--ink-4);transition:transform .18s;
}
.ai-refs[data-open="1"] .refs-hd .caret{transform:rotate(180deg)}
.ai-refs .refs-ls{display:none;flex-wrap:wrap;gap:6px;margin-top:7px;max-height:154px;overflow:auto}
.ai-refs[data-open="1"] .refs-ls{display:flex}
.ai-refs .ref{
  display:inline-flex;align-items:center;gap:6px;max-width:100%;
  padding:4px 9px;border:1px solid var(--line);
  background:#fff;border-radius:999px;cursor:pointer;font:inherit;text-align:left;
  transition:border-color .15s, background .15s;
}
.ai-refs .ref:hover{border-color:#c9d8d2;background:var(--brand-l2)}
.ai-refs .ref i{
  font-style:normal;font-size:10px;letter-spacing:.02em;text-transform:uppercase;
  color:var(--ink-4);background:#f2f0ea;border-radius:5px;padding:1px 5px;flex:0 0 auto;
}
.ai-refs .ref b{
  font-weight:500;font-size:12px;color:var(--ink);line-height:1.4;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:196px;flex:1;min-width:0;
}
.ai-refs .ref em.bad{
  font-style:normal;font-size:10px;color:var(--warn);background:#fbf3e3;
  border-radius:999px;padding:1px 5px;flex:0 0 auto;
}

.ai-sug{margin:12px 0 2px}
.ai-sug b{display:block;font-size:11.5px;color:var(--ink-4);font-weight:400;margin-bottom:7px}
.ai-sug button{
  display:block;width:100%;text-align:left;margin-bottom:6px;padding:8px 11px;
  font:inherit;font-size:13px;color:var(--brand-d);background:#fff;
  border:1px solid var(--line);border-radius:10px;cursor:pointer;
  transition:border-color .15s,background .15s;
}
.ai-sug button:hover{border-color:#c9d8d2;background:var(--brand-l2)}
.ai-sug button::before{content:"→ ";color:var(--ink-4)}

#statsBox b.warn{color:#b07a1e}
.ai-done{
  margin-top:8px;font-size:11.5px;color:var(--ink-4);
}

/* 状态徽标：损坏 */
.state.bad{color:#b07a1e}
.state.bad::before{background:#d9a545}
.ph.bad{border-color:#f0e2c6;background:#fffdf7;color:var(--ink-2)}
.ph.bad b{color:var(--warn)}