:root{
  --bg:#070a14;
  --panel:rgba(12,19,36,.86);
  --line:rgba(96,146,220,.22);
  --txt:#dfe7f5;
  --dim:#8ea2c0;
  --acc:#4f9dff;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;overflow:hidden;background:var(--bg);color:var(--txt);
  font:13px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",
       Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
canvas#gl{position:fixed;inset:0;width:100%;height:100%;display:block;touch-action:none}
button{font:inherit;color:inherit;cursor:pointer}
input{font:inherit}

/* ---------- 顶栏 ---------- */
#topbar{
  position:fixed;top:0;left:0;right:0;height:52px;z-index:20;
  display:flex;align-items:center;gap:18px;padding:0 14px;
  background:rgba(9,14,28,.82);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:9px;white-space:nowrap}
.brand .dot{
  width:9px;height:9px;border-radius:50%;
  background:linear-gradient(135deg,#5aa2ff,#9d6bff);
  box-shadow:0 0 10px rgba(90,162,255,.85);
}
.brand .t1{font-weight:600;letter-spacing:.2px}
.brand .t2{color:var(--dim);font-size:11.5px}
.search{display:flex;align-items:center;gap:6px;margin-left:auto}
.search input{
  width:250px;padding:6px 10px;border-radius:7px;color:var(--txt);
  background:rgba(255,255,255,.06);border:1px solid var(--line);outline:none;
}
.search input:focus{border-color:rgba(96,166,255,.6)}
.search button,#panel button{
  padding:6px 11px;border-radius:7px;border:1px solid var(--line);
  background:rgba(79,157,255,.16);transition:background .15s;
}
.search button:hover,#panel button:hover{background:rgba(79,157,255,.32)}
.stats{color:var(--dim);font-size:12px;white-space:nowrap}

/* ---------- 图例 / 控制 ---------- */
#legend{
  position:fixed;left:14px;bottom:14px;z-index:15;width:342px;padding:13px 14px;
  max-height:calc(100vh - 80px);overflow:auto;
  background:var(--panel);border:1px solid var(--line);border-radius:10px;
  backdrop-filter:blur(8px);
}
.lrow{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.lrow:last-of-type{margin-bottom:6px}
.lbl{color:var(--dim);font-size:11.5px;width:44px;flex:none}
.seg{display:flex;flex:1;border:1px solid var(--line);border-radius:7px;overflow:hidden}
.seg button{
  flex:1;padding:4px 0;border:0;background:transparent;color:var(--dim);
  font-size:12px;transition:background .15s,color .15s;
}
.seg button+button{border-left:1px solid var(--line)}
.seg button:hover{background:rgba(255,255,255,.06)}
.seg button.on{background:rgba(79,157,255,.28);color:#fff}
.hint{color:#96a5bd;font-size:11px;line-height:1.55}
#scale-label{font-size:12px;letter-spacing:1px;color:#ecd5aa;margin-bottom:10px}
#semantic-note{padding:8px 0;border-top:1px solid var(--line);margin:8px 0}
.galaxy-controls{display:flex;flex-wrap:wrap;gap:9px;align-items:center;font-size:11px;color:var(--dim)}
.galaxy-controls label{display:flex;gap:3px;align-items:center;white-space:nowrap}
.galaxy-controls input{accent-color:#8baee5;margin:0}
.galaxy-controls button{background:transparent;border:1px solid var(--line);border-radius:5px;padding:2px 5px}
.galaxy-controls button.on{background:rgba(79,157,255,.32);border-color:rgba(96,166,255,.62);color:#fff}
/* 全景 + 比对模式 绑成一组：换行时作为整体移到下一行，两者永远同一行。 */
.gc-actions{display:flex;gap:6px;flex:0 0 auto;white-space:nowrap}
button:disabled{opacity:.4;cursor:default}

/* ---------- 注释多选 ---------- */
[hidden]{display:none!important}
#annotation-scheme,#annotation-search{
  min-width:0;width:100%;color:var(--txt);background:#111c30;
  border:1px solid var(--line);border-radius:6px;padding:6px;font:inherit;
}
#annotation-controls{border-top:1px solid var(--line);padding-top:9px;margin-bottom:12px}
#annotation-tags{max-height:184px;overflow:auto;margin:8px 0;overscroll-behavior:contain}
.annotation-tag{display:flex;align-items:center;gap:7px;padding:4px 2px;cursor:pointer}
.annotation-tag:hover{background:rgba(79,157,255,.12)}
.annotation-tag span{overflow-wrap:anywhere;flex:1}
.annotation-tag small{color:var(--dim);font-variant-numeric:tabular-nums}
.annotation-tag input{accent-color:var(--acc)}
#annotation-selected{display:flex;gap:5px;flex-wrap:wrap;max-height:105px;overflow:auto;margin-top:8px}
.annotation-chip{border:1px solid var(--tag-color);border-radius:5px;color:var(--tag-color);background:#101727;padding:2px 6px;font-size:11px}
.annotation-chip::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--tag-color);margin-right:5px}
.annotation-actions{display:flex;gap:6px}
.annotation-actions button{padding:3px 7px;border:1px solid var(--line);border-radius:5px;background:rgba(79,157,255,.12);font-size:11px}
#annotation-coverage{white-space:pre-line}
#pdetails{border-top:1px solid var(--line);margin-top:8px;padding-top:7px}
#pdetails .prow span{flex:none;max-width:45%}
#pdetails .prow b{font-weight:400;overflow-wrap:anywhere;word-break:normal}
.protein-links{display:flex;gap:14px;margin-top:8px}
.protein-links a{color:#82bcff;text-decoration:none}
.protein-links a:hover{text-decoration:underline}
button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible{outline:2px solid var(--acc);outline-offset:2px}

/* ---------- 详情面板 ---------- */
#panel{
  position:fixed;right:14px;top:66px;z-index:20;width:336px;padding:12px;
  background:var(--panel);border:1px solid var(--line);border-radius:10px;
  backdrop-filter:blur(8px);max-height:calc(100vh - 90px);overflow:auto;
}
#panel.hidden{display:none}
#pclose{
  position:absolute;right:8px;top:6px;border:0;background:transparent;
  font-size:17px;line-height:1;color:var(--dim);padding:4px 6px;
}
#pclose:hover{color:#fff}
#pacc{font-size:15px;font-weight:600;letter-spacing:.3px;padding-right:22px}
#pid{color:var(--dim);font-size:11px;word-break:break-all}
.phead{margin-bottom:9px}
#pview{
  position:relative;height:168px;margin-bottom:10px;border-radius:8px;
  background:radial-gradient(circle at 50% 40%,rgba(60,110,190,.20),rgba(8,12,24,.9) 70%);
  border:1px solid var(--line);overflow:hidden;
}
#pview canvas{display:block;width:100%;height:100%;cursor:grab}
#pview canvas:active{cursor:grabbing}
#pview .vmsg{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:var(--dim);font-size:11.5px;text-align:center;padding:0 14px;
}
.prow{display:flex;justify-content:space-between;gap:10px;padding:3px 0;font-size:12px}
.prow span{color:var(--dim)}
.prow b{font-weight:600;font-variant-numeric:tabular-nums;text-align:right;word-break:break-all}
.pbtns{display:flex;gap:7px;margin-top:10px}
.pbtns button{flex:1}
.msg{color:#f0b849;font-size:11.5px;margin-top:8px;min-height:1px}

/* ---------- 比对模式：多标签 + 连线 ---------- */
#leader-layer{position:fixed;inset:0;width:100vw;height:100vh;display:block;z-index:18;pointer-events:none}
#compare{
  position:fixed;right:14px;top:66px;z-index:20;width:336px;padding:12px;
  background:var(--panel);border:1px solid var(--line);border-radius:10px;
  backdrop-filter:blur(8px);max-height:calc(100vh - 90px);overflow:auto;
}
#compare.hidden{display:none}
.chead{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:6px}
#compare-title{font-size:13px;font-weight:600;letter-spacing:.2px}
#compare-exit{
  border:0;background:transparent;color:var(--dim);font-size:17px;line-height:1;
  padding:2px 6px;
}
#compare-exit:hover{color:#fff}
#compare-list{margin:8px 0}
.compare-card{
  position:relative;display:grid;grid-template-columns:92px minmax(0,1fr);gap:9px;
  padding:7px;margin-bottom:7px;border:1px solid var(--line);border-radius:8px;
  background:rgba(10,17,32,.72);
}
.compare-card.is-active{border-color:var(--card-color);box-shadow:0 0 0 1px var(--card-color) inset}
.compare-card canvas{
  display:block;width:92px;height:76px;border-radius:6px;
  background:radial-gradient(circle at 50% 40%,rgba(60,110,190,.22),rgba(8,12,24,.9) 72%);
  border:1px solid rgba(96,146,220,.18);
}
.cc-body{min-width:0;display:flex;flex-direction:column;gap:2px;padding-right:14px}
.cc-id{font-size:12.5px;font-weight:600;color:var(--card-color);overflow-wrap:anywhere}
.cc-name{font-size:11.5px;line-height:1.35;color:#c8d8ef;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cc-org{font-size:10.5px;line-height:1.35;color:var(--dim);font-style:italic;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cc-del{
  position:absolute;right:2px;top:1px;border:0;background:transparent;color:var(--dim);
  font-size:15px;line-height:1;padding:2px 5px;
}
.cc-del:hover{color:#fff}
.cc-loading{font-size:11px;color:var(--dim)}
.cbtns{display:flex;gap:7px}
.cbtns button{flex:1;padding:6px 11px;border-radius:7px;border:1px solid var(--line);background:rgba(79,157,255,.16)}
.cbtns button:hover:not(:disabled){background:rgba(79,157,255,.32)}
#compare-status{min-height:14px;margin:6px 0 0}

/* ---------- 多结构对齐结果弹层 ---------- */
/* 注意：这一层不能加 backdrop-filter / filter —— 带合成滤镜的祖先会把
 * 内部 WebGL canvas 合成成纯黑（3Dmol 弹层“一片漆黑”的成因）。 */
#align-modal{position:fixed;inset:0;z-index:40;display:flex;align-items:center;justify-content:center;background:rgba(4,7,14,.82)}
#align-modal.hidden{display:none}
.am-box{
  width:min(900px,calc(100vw - 32px));max-height:calc(100vh - 48px);display:flex;flex-direction:column;
  padding:12px;background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:auto;
}
.am-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}
.am-head b{font-size:13.5px;font-weight:600;margin-right:auto}
/* 视图模式切换：卡通（默认） / Cα 叠加 */
.am-vm{display:flex;border:1px solid var(--line);border-radius:7px;overflow:hidden}
.am-vm button{border:0;background:transparent;color:var(--dim);font-size:11.5px;padding:3px 9px}
.am-vm button+button{border-left:1px solid var(--line)}
.am-vm button:hover{background:rgba(255,255,255,.06)}
.am-vm button.on{background:rgba(79,157,255,.28);color:#fff}
#align-close{border:0;background:transparent;color:var(--dim);font-size:19px;line-height:1;padding:2px 8px}
#align-close:hover{color:#fff}
#align-view{
  flex:none;min-height:300px;height:44vh;border-radius:8px;overflow:hidden;
  background:radial-gradient(circle at 50% 40%,rgba(60,110,190,.18),rgba(6,10,20,.96) 72%);
  border:1px solid var(--line);position:relative;
}
#align-view canvas{display:block;width:100%;height:100%}
.am-2d{position:absolute;inset:0;width:100%;height:100%;cursor:grab;touch-action:none}
.am-2d:active{cursor:grabbing}
#align-view .vmsg{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--dim);font-size:12px;text-align:center;padding:0 18px}
#align-legend{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:9px;font-size:11.5px;color:#c8d8ef}
#align-legend span{display:flex;align-items:center;gap:5px;max-width:46%;overflow-wrap:anywhere}
#align-legend i{display:inline-block;width:9px;height:9px;border-radius:50%;flex:none}
#align-status{margin:7px 0 0}

/* ---------- 对齐结果信息区 ---------- */
#align-info{margin-top:9px;font-size:11.5px;color:#c3d4ea}
#align-info:empty{display:none}
.am-tab{width:100%;border-collapse:collapse;font-size:11.5px}
.am-tab th{
  text-align:left;font-weight:500;color:var(--dim);padding:3px 8px 4px;
  border-bottom:1px solid var(--line);white-space:nowrap;
}
.am-tab td{padding:3px 8px;border-bottom:1px solid rgba(120,150,200,.10);vertical-align:top}
.am-tab tr:last-child td{border-bottom:0}
.am-tab .am-acc{white-space:nowrap;font-family:ui-monospace,Menlo,Consolas,monospace;color:#e6f0ff}
.am-tab .am-acc i{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px;vertical-align:1px}
.am-tab .am-ell{max-width:210px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.am-metrics{margin-top:7px;color:#9fb4cf;font-size:11px}
.am-det{margin-top:6px}
.am-det>summary{cursor:pointer;color:#9fb4cf;font-size:11px;outline:none}
.am-det>summary:hover{color:#dbe8f8}
.am-mat{border-collapse:collapse;margin-top:5px;font-size:10.5px;font-family:ui-monospace,Menlo,Consolas,monospace}
.am-mat th,.am-mat td{padding:2px 6px;border:1px solid rgba(120,150,200,.14);text-align:right;white-space:nowrap}
.am-mat th{color:var(--dim);font-weight:500;text-align:left}
.am-mat td.am-diag{color:#5d6d84;background:rgba(120,150,200,.06)}

/* ---------- 加载 / 提示 ---------- */
#loading{
  position:fixed;left:50%;bottom:22px;transform:translateX(-50%);z-index:30;
  display:flex;align-items:center;gap:10px;padding:8px 14px;border-radius:20px;
  background:rgba(9,14,28,.9);border:1px solid var(--line);font-size:12px;
  transition:opacity .4s,visibility .4s;
}
#loading.done{opacity:0;visibility:hidden}
#loading .bar{width:112px;height:3px;border-radius:2px;background:rgba(255,255,255,.12);overflow:hidden}
#loading .bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,#4f9dff,#9d6bff);transition:width .25s}
#loadtxt{color:var(--dim);white-space:nowrap}
#tip{
  position:fixed;left:50%;bottom:64px;transform:translateX(-50%);z-index:30;
  max-width:70vw;padding:7px 13px;border-radius:8px;font-size:12px;
  background:rgba(9,14,28,.92);border:1px solid var(--line);color:#cfe0f7;
  opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;pointer-events:none;
}
#tip.on{opacity:1;visibility:visible}

@media (max-width:720px){
  .brand .t2,.stats{display:none}
  .search input{width:130px}
  #legend{width:258px;left:8px;bottom:8px;max-height:38vh;overflow:auto}
  #panel{width:min(306px,calc(100vw - 16px));right:8px;top:60px;max-height:calc(60vh - 64px)}
  #compare{width:min(306px,calc(100vw - 16px));right:8px;top:60px;max-height:calc(70vh - 64px)}
  .compare-card{grid-template-columns:78px minmax(0,1fr)}
  .compare-card canvas{width:78px;height:68px}
  #annotation-tags{max-height:125px}
}