:root{
  --bg:#f5f7f4;
  --surface:#ffffff;
  --surface-2:#fafbf9;
  --surface-3:#f0f3ef;
  --ink:#1d2b24;
  --ink-2:#43534a;
  --muted:#7b8a81;
  --line:#e1e7e1;
  --line-strong:#cfd9d0;
  --green:#255c46;
  --green-2:#39795e;
  --green-soft:#e8f1ea;
  --clay:#a9693b;
  --clay-soft:#f6ece3;
  --cold:#3f7fa6;
  --cold-soft:#e7f1f7;
  --hot:#b8513c;
  --hot-soft:#faeae6;
  --neutral:#5b8a6c;
  --neutral-soft:#eaf3ec;
  --warm:#b58234;
  --warm-soft:#fbf2e1;
  --grey:#77837c;
  --grey-soft:#eef1ee;
  --shadow-sm:0 1px 2px rgba(27,48,36,.05),0 2px 8px rgba(27,48,36,.04);
  --shadow-md:0 8px 28px rgba(27,48,36,.12);
  --shadow-lg:0 20px 60px rgba(20,38,29,.22);
  --radius:10px;
  --radius-lg:14px;
  --sidebar-w:296px;
  --topbar-h:68px;
  --bottomnav-h:62px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%}
body{
  background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Segoe UI",system-ui,sans-serif;
  font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased;
}
button,input,select{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer}
a{color:var(--green);text-decoration:none}
.svg-sprite{position:absolute;width:0;height:0;overflow:hidden}
.ic{width:18px;height:18px;display:inline-block;vertical-align:middle;flex:none}
.muted{color:var(--muted)}
[hidden]{display:none !important}

/* ---------- top bar ---------- */
.topbar{
  height:var(--topbar-h);display:flex;align-items:center;gap:28px;
  padding:0 24px;background:var(--surface);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:40;
}
.brand-block{display:flex;align-items:center;gap:12px;min-width:270px}
.brand-mark{width:38px;height:38px;color:var(--green)}
.brand-mark svg{width:100%;height:100%;display:block}
.brand-text h1{margin:0;font-size:17px;font-weight:700;letter-spacing:.4px;line-height:1.25}
.brand-text p{margin:2px 0 0;font-size:11.5px;color:var(--muted);letter-spacing:.2px}
.modes{display:flex;gap:4px;background:var(--surface-3);padding:4px;border-radius:9px}
.mode-btn{
  display:flex;align-items:center;gap:7px;padding:7px 15px;border:0;background:transparent;
  border-radius:6px;color:var(--ink-2);font-weight:500;white-space:nowrap;transition:.16s;
}
.mode-btn .ic{width:16px;height:16px}
.mode-btn:hover{color:var(--green)}
.mode-btn.active{background:var(--surface);color:var(--green);box-shadow:var(--shadow-sm);font-weight:600}
.top-actions{margin-left:auto;display:flex;gap:8px}
.icon-btn{
  width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--surface);border-radius:8px;color:var(--ink-2);transition:.16s;
}
.icon-btn:hover{border-color:var(--green-2);color:var(--green);background:var(--green-soft)}

/* ---------- layout ---------- */
.layout{display:grid;grid-template-columns:var(--sidebar-w) minmax(0,1fr);min-height:calc(100vh - var(--topbar-h))}
.layout.no-sidebar{grid-template-columns:minmax(0,1fr)}
.sidebar{
  background:var(--surface);border-right:1px solid var(--line);
  position:sticky;top:var(--topbar-h);height:calc(100vh - var(--topbar-h));overflow-y:auto;
}
.sidebar-inner{padding:18px 16px calc(var(--bottomnav-h) + 20px)}
.sidebar::-webkit-scrollbar,.drawer-body::-webkit-scrollbar,.page-list::-webkit-scrollbar,.source-detail::-webkit-scrollbar{width:7px}
.sidebar::-webkit-scrollbar-thumb,.drawer-body::-webkit-scrollbar-thumb,.page-list::-webkit-scrollbar-thumb,.source-detail::-webkit-scrollbar-thumb{background:#d8e0d8;border-radius:8px}

.search-wrap{position:relative;display:flex;align-items:center;margin-bottom:20px}
.search-wrap .search-ic{position:absolute;left:11px;width:17px;height:17px;color:var(--muted);pointer-events:none}
.search-wrap input{
  width:100%;height:40px;padding:0 56px 0 36px;border:1px solid var(--line-strong);border-radius:8px;
  background:var(--surface-2);outline:none;transition:.16s;
}
.search-wrap input:focus{border-color:var(--green-2);background:var(--surface);box-shadow:0 0 0 3px rgba(57,121,94,.12)}
.search-wrap input::-webkit-search-cancel-button{display:none}
.kbd{position:absolute;right:10px;font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:0 5px;background:var(--surface)}
.clear-search{position:absolute;right:8px;width:24px;height:24px;border:0;background:transparent;color:var(--muted);display:flex;align-items:center;justify-content:center;border-radius:5px}
.clear-search .ic{width:14px;height:14px}
.clear-search:hover{background:var(--surface-3);color:var(--ink)}

.filter-head{display:flex;align-items:center;justify-content:space-between;margin:0 2px 10px}
.filter-title{display:flex;align-items:center;gap:7px;font-size:12px;font-weight:700;letter-spacing:.6px;color:var(--ink-2)}
.filter-title .ic{width:15px;height:15px}
.link-btn{border:0;background:none;color:var(--green);font-size:12px;padding:2px 4px}
.link-btn:hover{text-decoration:underline}

.filter-group{border-top:1px solid var(--line)}
.group-head{
  width:100%;display:flex;align-items:center;gap:8px;padding:12px 2px;border:0;background:none;
  text-align:left;font-weight:600;color:var(--ink);
}
.group-head>span:first-child{flex:1}
.group-meta{font-size:11px;font-weight:400;color:var(--muted)}
.chev{width:14px;height:14px;color:var(--muted);transition:transform .2s}
.group-head[aria-expanded="true"] .chev{transform:rotate(90deg)}
.group-body{padding:0 0 14px}
.group-hint{margin:0 0 9px;font-size:11.5px;color:var(--muted);line-height:1.5}
.mini-search{position:relative;display:flex;align-items:center;margin-bottom:10px}
.mini-search .ic{position:absolute;left:9px;width:14px;height:14px;color:var(--muted)}
.mini-search input{width:100%;height:32px;padding:0 10px 0 30px;border:1px solid var(--line);border-radius:6px;background:var(--surface-2);outline:none;font-size:12.5px}
.mini-search input:focus{border-color:var(--green-2);background:var(--surface)}
.mini-search input::-webkit-search-cancel-button{display:none}
.chip-list{display:flex;flex-wrap:wrap;gap:6px;max-height:210px;overflow-y:auto;padding-right:2px}
.chip-list::-webkit-scrollbar{width:5px}
.chip-list::-webkit-scrollbar-thumb{background:#dbe3db;border-radius:6px}
.chip{
  display:inline-flex;align-items:center;gap:5px;padding:4px 9px;border:1px solid var(--line);
  background:var(--surface-2);border-radius:6px;font-size:12px;color:var(--ink-2);transition:.14s;white-space:nowrap;
}
.chip:hover{border-color:var(--green-2);color:var(--green)}
.chip.on{background:var(--green);border-color:var(--green);color:#fff;font-weight:500}
.chip .n{font-size:10.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.chip.on .n{color:rgba(255,255,255,.75)}
.fav-toggle{
  width:100%;display:flex;align-items:center;gap:8px;padding:9px 10px;border:1px solid var(--line);
  background:var(--surface-2);border-radius:7px;color:var(--ink-2);font-size:12.5px;
}
.fav-toggle:hover{border-color:var(--clay)}
.fav-toggle.on{background:var(--clay-soft);border-color:var(--clay);color:var(--clay);font-weight:600}
.fav-toggle span{margin-left:auto;font-variant-numeric:tabular-nums}
.sidebar-foot{display:flex;gap:7px;margin-top:18px;padding:11px;border-radius:8px;background:var(--surface-3);font-size:11px;color:var(--muted);line-height:1.55}
.sidebar-foot .ic{width:14px;height:14px;margin-top:1px}

/* ---------- content ---------- */
.content{padding:20px 26px calc(var(--bottomnav-h) + 40px);min-width:0}
.result-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px;min-height:36px}
.result-left{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.result-left>strong{font-size:22px;color:var(--green);font-variant-numeric:tabular-nums;line-height:1}
.active-chips{display:flex;flex-wrap:wrap;gap:5px;margin-left:10px}
.active-chip{display:inline-flex;align-items:center;gap:5px;padding:3px 8px;background:var(--green-soft);border:1px solid #cfe3d5;color:var(--green);border-radius:5px;font-size:11.5px}
.active-chip button{border:0;background:none;color:inherit;padding:0;display:flex}
.active-chip .ic{width:11px;height:11px}
.result-right{display:flex;align-items:center;gap:8px}
.sort-label{font-size:12px;color:var(--muted)}
#sortSelect{height:32px;padding:0 26px 0 10px;border:1px solid var(--line-strong);border-radius:7px;background:var(--surface);outline:none;font-size:12.5px}
#sortSelect:focus{border-color:var(--green-2)}

.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(264px,1fr));gap:14px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:.18s;display:flex;flex-direction:column;position:relative;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#c9d8cd}
.card-image{
  height:150px;background:linear-gradient(145deg,#f3f6f2,#e9efe9);display:flex;align-items:center;justify-content:center;
  cursor:zoom-in;overflow:hidden;position:relative;border-bottom:1px solid var(--line);
}
.card-image img{width:100%;height:100%;object-fit:contain;transition:transform .25s}
.card:hover .card-image img{transform:scale(1.035)}
.card-image .no-img{color:var(--muted);font-size:12px}
.card-badges{position:absolute;top:9px;left:9px;display:flex;gap:5px}
.nature-badge{padding:2px 8px;border-radius:5px;font-size:11px;font-weight:600;background:#fff;border:1px solid var(--line)}
.nature-badge[data-n="寒"]{color:var(--cold);border-color:#c7deeb;background:var(--cold-soft)}
.nature-badge[data-n="热"]{color:var(--hot);border-color:#eecdc5;background:var(--hot-soft)}
.nature-badge[data-n="平"]{color:var(--neutral);border-color:#c9e1d0;background:var(--neutral-soft)}
.nature-badge[data-n="温平"]{color:var(--warm);border-color:#ecdcb9;background:var(--warm-soft)}
.nature-badge[data-n="未标注"]{color:var(--grey);background:var(--grey-soft)}
.page-badge{position:absolute;top:9px;right:9px;background:rgba(29,43,36,.72);color:#fff;padding:2px 7px;border-radius:5px;font-size:10.5px;letter-spacing:.3px}
.card-fav{position:absolute;bottom:8px;right:8px;width:28px;height:28px;border:1px solid var(--line);background:rgba(255,255,255,.94);border-radius:7px;display:flex;align-items:center;justify-content:center;color:var(--muted)}
.card-fav:hover{color:var(--clay)}
.card-fav.on{color:var(--clay);border-color:#e2c2a6;background:var(--clay-soft)}
.card-fav .ic{width:15px;height:15px}
.card-body{padding:13px 14px 12px;flex:1;display:flex;flex-direction:column;cursor:pointer}
.card-title-row{display:flex;align-items:baseline;gap:7px}
.card-title{font-size:16px;font-weight:700;letter-spacing:.2px;margin:0}
.card-section{font-size:11px;color:var(--clay);background:var(--clay-soft);padding:1px 6px;border-radius:4px;white-space:nowrap}
.card-tagline{margin:7px 0 0;font-size:12.5px;color:var(--ink-2);line-height:1.55;min-height:38px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-tags{display:flex;flex-wrap:wrap;gap:4px;margin-top:9px}
.tag{font-size:10.5px;padding:2px 6px;border-radius:4px;background:var(--surface-3);color:var(--ink-2);white-space:nowrap}
.tag.disease{background:var(--green-soft);color:var(--green)}
.tag.body{background:var(--clay-soft);color:var(--clay)}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:11px;padding-top:9px;border-top:1px dashed var(--line);font-size:11px;color:var(--muted)}
.compare-add{display:inline-flex;align-items:center;gap:4px;border:0;background:none;color:var(--muted);font-size:11px;padding:2px 3px}
.compare-add:hover{color:var(--green)}
.compare-add.on{color:var(--green);font-weight:600}
.compare-add .ic{width:13px;height:13px}

.empty-state{text-align:center;padding:70px 20px;color:var(--muted)}
.empty-state .ic{width:38px;height:38px;color:var(--line-strong);margin-bottom:12px}
.empty-state h3{margin:0 0 6px;color:var(--ink);font-size:16px}
.empty-state p{margin:0 0 18px;font-size:13px}
.btn-primary{border:0;background:var(--green);color:#fff;padding:8px 16px;border-radius:7px;font-weight:600;transition:.16s}
.btn-primary:hover{background:var(--green-2)}
.btn-primary:disabled{background:#b9c7be;cursor:not-allowed}
.btn-ghost{border:1px solid var(--line-strong);background:var(--surface);color:var(--ink-2);padding:7px 13px;border-radius:7px}
.btn-ghost:hover{border-color:var(--green-2);color:var(--green)}

/* ---------- drawer ---------- */
.overlay{position:fixed;inset:0;background:rgba(18,32,25,.42);z-index:60;animation:fade .18s}
@keyframes fade{from{opacity:0}to{opacity:1}}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(660px,94vw);background:var(--surface);z-index:70;
  box-shadow:var(--shadow-lg);display:flex;flex-direction:column;animation:slidein .22s ease-out;
}
@keyframes slidein{from{transform:translateX(28px);opacity:.6}to{transform:translateX(0);opacity:1}}
.drawer-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:18px 22px 14px;border-bottom:1px solid var(--line)}
.drawer-head-text .eyebrow{font-size:11px;color:var(--muted);letter-spacing:1px;text-transform:uppercase}
.drawer-head h2{margin:3px 0 0;font-size:21px;letter-spacing:.3px}
.drawer-body{overflow-y:auto;padding:20px 22px 40px;flex:1}
.detail-hero{display:grid;grid-template-columns:210px 1fr;gap:18px;align-items:start}
.detail-box-img{width:100%;border:1px solid var(--line);border-radius:10px;background:var(--surface-2);cursor:zoom-in;display:block}
.detail-meta h3{margin:0 0 10px;font-size:15px}
.meta-rows{display:grid;grid-template-columns:74px 1fr;gap:7px 10px;font-size:12.5px}
.meta-rows dt{color:var(--muted)}
.meta-rows dd{margin:0;color:var(--ink-2)}
.detail-tagline{margin:16px 0 0;padding:12px 14px;background:var(--green-soft);border-left:3px solid var(--green);border-radius:0 7px 7px 0;color:var(--green);font-weight:600;font-size:13.5px}
.sec-title{display:flex;align-items:center;gap:8px;margin:24px 0 10px;font-size:14px;font-weight:700;color:var(--ink)}
.sec-title::after{content:"";flex:1;height:1px;background:var(--line)}
.sec-title .ic{width:16px;height:16px;color:var(--green)}
.field-list{border:1px solid var(--line);border-radius:9px;overflow:hidden}
.field-row{display:grid;grid-template-columns:88px 1fr;border-bottom:1px solid var(--line)}
.field-row:last-child{border-bottom:0}
.field-row dt{padding:10px 12px;background:var(--surface-2);color:var(--ink-2);font-size:12.5px;font-weight:600;border-right:1px solid var(--line)}
.field-row dd{margin:0;padding:10px 13px;font-size:13px;line-height:1.75;color:var(--ink)}
.comp-chips{display:flex;flex-wrap:wrap;gap:5px}
.comp-chip{padding:2px 8px;background:var(--surface-3);border:1px solid var(--line);border-radius:5px;font-size:12px;color:var(--ink-2)}
.note-list{display:flex;flex-direction:column;gap:7px}
.note-item{display:flex;gap:8px;padding:9px 11px;background:var(--clay-soft);border:1px solid #efdcc9;border-radius:7px;font-size:12.5px;color:#8b4f28}
.note-item .ic{width:15px;height:15px;margin-top:2px}
.note-item strong{font-weight:600;letter-spacing:.3px}
.note-item.warning{background:#fbeceb;border-color:#f0cfcc;color:#9c3a30}
.note-item.ok{background:var(--green-soft);border-color:#cfe3d5;color:var(--green)}
.detail-tags{display:flex;flex-wrap:wrap;gap:6px}
.detail-tag{padding:4px 9px;border:1px solid var(--line);background:var(--surface-2);border-radius:6px;font-size:12px;color:var(--ink-2);cursor:pointer}
.detail-tag:hover{border-color:var(--green-2);color:var(--green)}
.detail-tag.body{border-color:#eddbc9;background:var(--clay-soft);color:var(--clay)}
.thumb-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(112px,1fr));gap:9px}
.thumb{position:relative;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--surface-2);cursor:zoom-in}
.thumb img{width:100%;height:118px;object-fit:cover;display:block}
.thumb span{display:block;padding:4px 6px;font-size:10.5px;color:var(--muted);background:var(--surface);border-top:1px solid var(--line)}
.raw-text{white-space:pre-wrap;font-size:12.5px;line-height:1.85;color:var(--ink-2);background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:13px;margin:0;max-height:280px;overflow:auto}
.case-link{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:7px;background:var(--surface-2);margin-bottom:7px;cursor:pointer;font-size:12.5px}
.case-link:hover{border-color:var(--green-2)}
.case-link .ic{width:14px;height:14px;color:var(--muted)}
.disclaimer{margin-top:26px;padding:11px 13px;border:1px dashed var(--line-strong);border-radius:8px;color:var(--muted);font-size:11.5px;line-height:1.65}

/* ---------- modal ---------- */
.modal{
  position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);width:min(900px,94vw);max-height:86vh;
  background:var(--surface);border-radius:14px;box-shadow:var(--shadow-lg);z-index:80;display:flex;flex-direction:column;
}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.modal-head h3{margin:0;font-size:16px}
.modal-body{padding:20px;overflow:auto}
.help-list{font-size:13px;line-height:1.85;color:var(--ink-2)}
.help-list h4{margin:18px 0 6px;font-size:13.5px;color:var(--ink)}
.help-list h4:first-child{margin-top:0}
.help-list ul{margin:0;padding-left:19px}
.compare-table{width:100%;border-collapse:collapse;font-size:12.5px}
.compare-table th,.compare-table td{border:1px solid var(--line);padding:9px 11px;text-align:left;vertical-align:top;line-height:1.7}
.compare-table thead th{background:var(--green);color:#fff;font-size:13.5px;position:sticky;top:0}
.compare-table tbody th{background:var(--surface-2);width:96px;color:var(--ink-2);font-weight:600;white-space:nowrap}

/* ---------- cases ---------- */
.view-head{margin:0 0 16px}
.view-head h2{margin:0;font-size:19px}
.view-head p{margin:5px 0 0;color:var(--muted);font-size:12.5px}
.case-cover{display:grid;grid-template-columns:150px 1fr;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:16px;margin-bottom:18px;box-shadow:var(--shadow-sm)}
.case-cover img{width:150px;height:150px;object-fit:cover;border-radius:8px;cursor:zoom-in}
.case-cover h3{margin:0 0 8px;font-size:15px}
.case-cover p{margin:0;color:var(--ink-2);font-size:13px;line-height:1.8;white-space:pre-wrap}
.case-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:14px}
.case-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:16px;box-shadow:var(--shadow-sm)}
.case-card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.case-card-head h3{margin:0;font-size:15.5px}
.case-page{font-size:11px;color:var(--muted)}
.case-text{white-space:pre-wrap;font-size:12.5px;line-height:1.85;color:var(--ink-2);margin:0 0 12px}
.case-formulas{border-top:1px dashed var(--line);padding-top:10px;margin-top:10px}
.case-formulas .lbl{font-size:11px;color:var(--muted);display:block;margin-bottom:7px}
.formula-pill{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;margin:0 5px 5px 0;border:1px solid var(--line);border-radius:5px;font-size:11.5px;background:var(--surface-2);color:var(--ink-2)}
.formula-pill.linked{cursor:pointer;border-color:#cfe3d5;background:var(--green-soft);color:var(--green)}
.formula-pill.unlinked{color:var(--muted);border-style:dashed;cursor:default}
.case-images{display:flex;gap:7px;flex-wrap:wrap;margin-top:10px}
.case-images img{width:78px;height:78px;object-fit:cover;border:1px solid var(--line);border-radius:6px;cursor:zoom-in}

/* ---------- source browsing ---------- */
.source-layout{display:grid;grid-template-columns:214px 1fr;gap:16px;align-items:start}
.source-nav{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:12px;position:sticky;top:calc(var(--topbar-h) + 20px)}
.page-list{max-height:calc(100vh - 190px);overflow-y:auto;display:flex;flex-direction:column;gap:2px;margin-top:8px}
.page-item{display:flex;align-items:center;gap:8px;width:100%;padding:7px 9px;border:0;background:none;border-radius:6px;text-align:left;font-size:12.5px;color:var(--ink-2)}
.page-item:hover{background:var(--surface-3)}
.page-item.on{background:var(--green);color:#fff;font-weight:600}
.page-item .pg{width:26px;flex:none;font-variant-numeric:tabular-nums;color:var(--muted)}
.page-item.on .pg{color:rgba(255,255,255,.8)}
.page-item .pt{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-item .dot{width:5px;height:5px;border-radius:50%;background:var(--clay);flex:none;margin-left:auto}
.source-detail{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px;min-height:420px;max-height:calc(100vh - 130px);overflow-y:auto}
.source-detail .sd-head{display:flex;align-items:center;gap:10px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.source-detail .sd-num{font-size:12px;color:#fff;background:var(--green);padding:3px 9px;border-radius:5px;font-variant-numeric:tabular-nums}
.source-detail h3{margin:0;font-size:17px}
.source-detail .sd-text{white-space:pre-wrap;font-size:13.5px;line-height:2;color:var(--ink);margin:0 0 18px}
.sd-images{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px}
.sd-images img{width:100%;height:170px;object-fit:contain;background:var(--surface-2);border:1px solid var(--line);border-radius:8px;cursor:zoom-in}
.sd-empty{color:var(--muted);font-size:12.5px;padding:14px 0}

/* ---------- dimension index views (bottom nav) ---------- */
.index-head{margin-bottom:10px}
.index-head-row{display:flex;align-items:center;gap:9px;min-height:28px}
.index-head-row h2{margin:0;font-size:18px;letter-spacing:.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.index-count-badge{flex:none;padding:2px 8px;border:1px solid #cfe3d5;background:var(--green-soft);color:var(--green);border-radius:5px;font-size:11px;font-weight:600;white-space:nowrap}
.index-info-btn{width:24px;height:24px;flex:none;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);background:var(--surface);border-radius:6px;color:var(--muted)}
.index-info-btn .ic{width:14px;height:14px}
.index-info-btn:hover,.index-info-btn.active{border-color:var(--green-2);color:var(--green);background:var(--green-soft)}
.index-brief{margin:4px 0 0;color:var(--muted);font-size:12px;line-height:1.5}
.index-detail{margin:8px 0 0;padding:10px 12px;background:var(--surface-2);border:1px solid var(--line);border-radius:7px;color:var(--ink-2);font-size:12px;line-height:1.75}
.index-toolbar{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.index-toolbar .mini-search{margin:0;width:290px;max-width:100%}
.atlas-banner{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:9px 12px;margin-bottom:12px;border:1px solid var(--line);border-radius:9px;background:var(--surface);cursor:zoom-in}
.atlas-banner:hover{border-color:var(--green-2)}
.atlas-banner img{width:52px;height:54px;object-fit:cover;border-radius:6px;border:1px solid var(--line);flex:none}
.atlas-text{display:flex;flex-direction:column;gap:3px;min-width:0;flex:1}
.atlas-text strong{font-size:12.5px;font-weight:600}
.atlas-desc{font-size:11.5px;color:var(--muted);line-height:1.6}
.atlas-zoom-hint{color:var(--muted);flex:none;display:flex}
.atlas-zoom-hint .ic{width:16px;height:16px}
.index-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px;margin-bottom:22px}
.index-card{display:flex;flex-direction:column;gap:6px;text-align:left;padding:13px 14px;border:1px solid var(--line);border-radius:10px;background:var(--surface);box-shadow:var(--shadow-sm);transition:.16s}
.index-card:hover{border-color:var(--green-2);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.index-card.on{border-color:var(--green);background:var(--green-soft)}
.index-card-top{display:flex;align-items:baseline;justify-content:space-between;gap:8px}
.index-card-top strong{font-size:14.5px}
.index-count{font-size:11px;color:var(--green);white-space:nowrap;font-variant-numeric:tabular-nums}
.index-card .pg{font-size:10.5px;color:var(--clay);background:var(--clay-soft);padding:1px 6px;border-radius:4px;white-space:nowrap}
.index-desc{font-size:11.5px;color:var(--muted);line-height:1.6;min-height:18px}
.index-preview{font-size:11.5px;color:var(--ink-2);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.index-card .kw{font-size:10.5px;color:var(--clay);line-height:1.5}
.index-results-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:0 0 12px;padding:12px 14px;border:1px solid var(--line);border-left:3px solid var(--green);border-radius:0 8px 8px 0;background:var(--surface)}
.index-results-head strong{font-size:15px}
.index-results-head .sub{font-size:12px;color:var(--muted);margin-left:8px}
.index-results-head .acts{display:flex;gap:7px}
.index-empty{padding:40px 20px;text-align:center;color:var(--muted);font-size:13px;border:1px dashed var(--line-strong);border-radius:10px;background:var(--surface)}

/* ---------- bottom navigation ---------- */
.bottom-nav{position:fixed;left:0;right:0;bottom:0;height:var(--bottomnav-h);z-index:45;display:grid;grid-template-columns:repeat(4,1fr);background:rgba(255,255,255,.97);backdrop-filter:blur(8px);border-top:1px solid var(--line-strong);box-shadow:0 -4px 18px rgba(27,48,36,.07)}
.nav-btn{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;border:0;background:none;color:var(--muted);font-size:11.5px;letter-spacing:.5px;transition:.16s}
.nav-btn .ic{width:21px;height:21px}
.nav-btn::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:0;height:2px;background:var(--green);border-radius:0 0 3px 3px;transition:.18s}
.nav-btn:hover{color:var(--green);background:var(--green-soft)}
.nav-btn.active{color:var(--green);font-weight:700}
.nav-btn.active::before{width:36px}

/* ---------- compare bar ---------- */
.compare-bar{position:fixed;bottom:var(--bottomnav-h);left:0;right:0;z-index:50;background:var(--surface);border-top:1px solid var(--line);box-shadow:0 -6px 22px rgba(27,48,36,.09)}
.compare-inner{max-width:1400px;margin:0 auto;padding:10px 24px;display:flex;align-items:center;gap:12px;font-size:12.5px}
.compare-inner>.ic{color:var(--green)}
.compare-names{display:flex;gap:6px;flex:1;flex-wrap:wrap}
.compare-pill{padding:3px 9px;background:var(--green-soft);color:var(--green);border-radius:5px;font-size:11.5px;display:inline-flex;align-items:center;gap:5px}
.compare-pill button{border:0;background:none;color:inherit;display:flex;padding:0}
.compare-pill .ic{width:11px;height:11px}

/* ---------- lightbox ---------- */
.lightbox{position:fixed;inset:0;z-index:90;background:rgba(12,20,16,.93);display:flex;align-items:center;justify-content:center;padding:50px 80px}
.lightbox img{max-width:100%;max-height:100%;object-fit:contain;border-radius:4px;box-shadow:0 12px 50px rgba(0,0,0,.5)}
.lightbox-close{position:absolute;top:18px;right:22px;width:38px;height:38px;border:1px solid rgba(255,255,255,.3);background:rgba(255,255,255,.08);color:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center}
.lightbox-close:hover,.lightbox-nav:hover{background:rgba(255,255,255,.2)}
.lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:52px;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.08);color:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center}
.lightbox-nav.prev{left:20px}
.lightbox-nav.prev .ic{transform:rotate(180deg)}
.lightbox-nav.next{right:20px}
.lightbox-nav:disabled{opacity:.28;cursor:not-allowed}
.lightbox-caption{position:absolute;bottom:18px;left:0;right:0;text-align:center;color:rgba(255,255,255,.8);font-size:12.5px}

@media(max-width:1120px){
  .layout{grid-template-columns:1fr}
  .sidebar{position:static;height:auto;border-right:0;border-bottom:1px solid var(--line)}
  .sidebar-inner{padding:14px 20px}
  .chip-list{max-height:150px}
  .content{padding:18px 20px calc(var(--bottomnav-h) + 40px)}
}
/* ---- handbook quick lookup / reference library ---- */
.seg-switch{display:inline-flex;gap:3px;padding:3px;background:var(--surface-3);border:1px solid var(--line);border-radius:9px;margin-bottom:12px;max-width:100%;overflow:auto}
.seg-btn{appearance:none;border:0;background:transparent;color:var(--ink-2);font:inherit;font-size:12.5px;font-weight:600;padding:7px 13px;border-radius:6px;cursor:pointer;white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.seg-btn:hover{background:var(--surface)}
.seg-btn.on{background:var(--surface);color:var(--green);box-shadow:var(--shadow-sm)}
.seg-count{font-size:10.5px;font-weight:700;background:var(--green-soft);color:var(--green);padding:1px 6px;border-radius:9px}
.seg-btn.on .seg-count{background:var(--green);color:#fff}

.quick-group{margin-bottom:20px}
.quick-group h3{display:flex;align-items:center;gap:9px;margin:0 0 9px;font-size:14.5px;color:var(--green)}
.quick-group h3 span{font-size:11px;font-weight:600;color:var(--muted);background:var(--surface-3);padding:2px 8px;border-radius:9px}
.quick-table{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface)}
.quick-row{display:grid;grid-template-columns:1.25fr 1.7fr 2.1fr 1fr;gap:10px;align-items:start;padding:10px 12px;border-top:1px solid var(--line);font-size:12.5px;line-height:1.6}
.quick-row:first-child{border-top:0}
.quick-row.quick-head{background:var(--surface-3);font-size:11px;font-weight:700;color:var(--ink-2);letter-spacing:.3px}
.quick-row strong{font-size:13px;color:var(--ink)}
.quick-symptom{color:var(--ink-2);font-size:12px}
.quick-period{font-size:11.5px;color:var(--clay);font-weight:600}
.quick-formulas .formula-pill{margin:0 4px 4px 0}

.quick-refs{display:grid;gap:9px}
.quick-ref{border:1px solid var(--line);border-left:3px solid var(--green-2);border-radius:8px;padding:10px 12px;background:var(--surface-2)}
.quick-ref-head{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.quick-ref-head strong{font-size:13px}
.quick-ref-dept{font-size:10.5px;padding:1px 7px;background:var(--green-soft);color:var(--green);border-radius:9px}
.quick-ref .quick-symptom{margin:6px 0 4px}

.library-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:11px}
.library-card{appearance:none;text-align:left;border:1px solid var(--line);background:var(--surface);border-radius:var(--radius);padding:8px;cursor:pointer;font:inherit;box-shadow:var(--shadow-sm);transition:border-color .15s,transform .15s}
.library-card:hover{border-color:var(--green-2);transform:translateY(-2px)}
.library-thumb{display:block;height:135px;border-radius:6px;overflow:hidden;background:var(--surface-3)}
.library-thumb img{width:100%;height:100%;object-fit:contain;display:block}
.library-label{display:block;margin-top:7px;font-size:11.5px;color:var(--ink-2);line-height:1.45;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.manual-hero{display:flex;flex-direction:column;justify-content:center;gap:8px;min-height:150px;padding:18px;border:1px dashed var(--line-strong);border-radius:10px;background:var(--green-soft);color:var(--green)}
.manual-hero strong{font-size:15px}
.manual-hero span{font-size:11.5px;line-height:1.7;color:var(--ink-2)}
.no-img.manual{color:var(--green);background:var(--green-soft);border-radius:8px;padding:10px}
.page-badge.manual{background:rgba(37,92,70,.86)}

@media(max-width:760px){
  :root{--bottomnav-h:58px}
  .topbar{flex-wrap:nowrap;height:auto;padding:7px 10px;gap:8px}
  .brand-block{gap:8px}
  .brand-mark{width:30px;height:30px}
  .brand-text h1{font-size:14.5px;white-space:nowrap}
  .brand-text p{display:none}
  .modes{padding:2px;gap:2px;margin-left:auto;width:auto;justify-content:flex-start}
  .mode-btn{padding:5px 7px;font-size:0;gap:0}
  .mode-btn .ic{width:16px;height:16px}
  .top-actions{margin-left:0}
  .icon-btn{width:30px;height:30px}
  .content{padding:12px 14px calc(var(--bottomnav-h) + 28px)}
  .index-head{margin-bottom:8px}
  .index-head-row{gap:7px}
  .index-head-row h2{font-size:16px}
  .index-brief{display:none}
  .index-toolbar{margin-bottom:10px}
  .index-toolbar .mini-search{width:100%}
  .atlas-banner{padding:7px 10px;gap:9px;margin-bottom:10px}
  .atlas-banner img{width:38px;height:38px}
  .atlas-text strong{font-size:12px}
  .atlas-desc{display:none}
  .index-cards{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px;margin-bottom:16px}
  .index-card{padding:10px 11px;gap:5px}
  .index-card-top strong{font-size:13.5px}
  .nav-btn{font-size:11px}
  .nav-btn .ic{width:19px;height:19px}
  .brand-block{min-width:0;flex:1}
  .modes{order:0}
  .source-layout{grid-template-columns:1fr}
  .source-nav{position:static}
  .page-list{max-height:180px}
  .detail-hero{grid-template-columns:1fr}
  .detail-box-img{max-width:260px}
  .case-cover{grid-template-columns:1fr}
  .result-bar{flex-direction:column;align-items:flex-start}
  .lightbox{padding:60px 14px}
  .lightbox-nav.prev{left:6px}.lightbox-nav.next{right:6px}
  .seg-switch{width:100%}
  .seg-btn{flex:1;justify-content:center;padding:7px 6px;font-size:11.5px}
  .quick-row{grid-template-columns:1fr 1fr;gap:6px;padding:10px}
  .quick-row.quick-head{display:none}
  .quick-row strong,.quick-row .quick-symptom,.quick-row .quick-formulas,.quick-row .quick-period{grid-column:1/-1}
  .library-grid{grid-template-columns:repeat(auto-fill,minmax(108px,1fr));gap:8px}
  .library-thumb{height:100px}
  .library-label{font-size:10.5px}
}