/* 三维通 TriView 3D — 仪器面板风格：石墨底 + 单一青色高亮 */
:root {
  --bg: #1b1d21;
  --surface: rgba(28, 30, 34, .92);
  --surface-solid: #1c1e22;
  --line: rgba(255, 255, 255, .16);
  --text: #eef2f6;
  --dim: #b6c0cd;
  --accent: #38bdf8;
  --accent-ink: #04121c;
  --warn: #f0a92b;
  --field: rgba(127, 140, 155, .18);
  --mark: 1.25;
  --font: "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  --mono: "Consolas", "SF Mono", ui-monospace, monospace;
  color-scheme: dark;
}
html[data-theme="light"] {
  --bg: #e9ebee;
  --surface: rgba(250, 251, 252, .94);
  --surface-solid: #fafbfc;
  --line: rgba(15, 20, 28, .22);
  --text: #131a22;
  --dim: #46505e;
  --accent: #0284c7;
  --accent-ink: #ffffff;
  --field: rgba(70, 84, 100, .12);
  color-scheme: light;
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font: 13px/1.5 var(--font);
  color: var(--text);
  background: var(--bg);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}
#app { display: grid; grid-template-rows: 44px 1fr 30px; height: 100%; }
.hidden { display: none !important; }
.visually-hidden { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.grow { flex: 1; }

/* ——— 顶栏 ——— */
#menubar {
  display: flex; align-items: center; gap: 14px; padding: 0 12px;
  background: var(--surface-solid); border-bottom: 1px solid var(--line);
  user-select: none; z-index: 20;
}
.brand { display: flex; align-items: baseline; gap: 7px; padding-right: 6px; }
.brand b { font-size: 15px; letter-spacing: .5px; }
.brand span { font-size: 10px; color: var(--dim); letter-spacing: 1.5px; text-transform: uppercase; }
#menus { display: flex; gap: 2px; }
#menus button {
  appearance: none; background: none; border: 1px solid transparent; color: var(--text);
  padding: 6px 13px; border-radius: 6px; font-size: 13px; cursor: pointer; font-family: var(--font);
}
#menus button:hover { background: rgba(56, 189, 248, .10); }
#menus button.active { background: var(--accent); color: var(--accent-ink); }
.keys { font-size: 11px; color: var(--dim); }
@media (max-width: 860px) { .keys { display: none; } }

/* ——— 主体 ——— */
main { position: relative; display: flex; min-height: 0; }
#viewport { position: relative; flex: 1; min-width: 0; overflow: hidden; background: #2a2b2f; }
#viewport canvas { display: block; width: 100% !important; height: 100% !important; touch-action: none; }

/* ——— 面板 ——— */
#panel {
  position: absolute; left: 0; top: 0; bottom: 0; width: 322px; z-index: 15;
  background: var(--surface); backdrop-filter: blur(14px);
  border-right: 1px solid var(--line); display: flex; flex-direction: column;
  box-shadow: 22px 0 60px rgba(0, 0, 0, .28);
}
.panelhead { display: flex; align-items: center; justify-content: space-between; padding: 12px 14px 10px; border-bottom: 1px solid var(--line); }
.panelhead h2 { margin: 0; font-size: 14px; letter-spacing: 1px; font-weight: 600; }
.panelhead button {
  appearance: none; background: none; border: 1px solid var(--line); color: var(--dim);
  border-radius: 5px; padding: 3px 9px; font-size: 11px; cursor: pointer; font-family: var(--font);
}
.panelhead button:hover { color: var(--text); border-color: var(--accent); }
#panelBody { overflow: auto; padding: 12px 14px 26px; flex: 1; }
#panelBody::-webkit-scrollbar { width: 9px; }
#panelBody::-webkit-scrollbar-thumb { background: var(--line); border-radius: 5px; }

.group { margin: 0 0 18px; }
.group > h3 {
  margin: 0 0 9px; font-size: 11px; font-weight: 600; color: var(--dim);
  letter-spacing: 2px; text-transform: none;
}
.field { display: grid; grid-template-columns: 86px 1fr; align-items: center; gap: 8px; margin: 7px 0; }
.fname { color: var(--text); font-size: 12.5px; opacity: .92; }
.row { display: flex; gap: 7px; margin: 8px 0; flex-wrap: wrap; align-items: center; }
.wrap { flex-wrap: wrap; }
.grid9 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin: 8px 0; }
.note { margin: 8px 0 0; font-size: 11.5px; color: var(--dim); line-height: 1.65; }
.empty { padding: 14px; color: var(--dim); border: 1px dashed var(--line); border-radius: 8px; text-align: center; }

button.btn, button.tbtn {
  appearance: none; font-family: var(--font); font-size: 12.5px; cursor: pointer;
  padding: 7px 12px; border-radius: 6px; border: 1px solid var(--line);
  background: var(--field); color: var(--text); transition: .12s;
}
button.btn:hover, button.tbtn:hover { border-color: var(--accent); }
button.btn:active { transform: translateY(1px); }
button.tbtn.on { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.grid9 button { width: 100%; padding: 8px 4px; }

input[type=range] {
  appearance: none; width: 100%; height: 3px; border-radius: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent)) no-repeat, rgba(127, 140, 155, .3);
  background-size: 50% 100%; cursor: ew-resize;
}
input[type=range]::-webkit-slider-thumb {
  appearance: none; width: 13px; height: 13px; border-radius: 50%;
  background: var(--accent); border: 2px solid var(--surface-solid); box-shadow: 0 0 0 1px var(--accent);
}
.rangewrap { display: grid; grid-template-columns: 1fr 54px; align-items: center; gap: 8px; }
.num {
  font: 11.5px/1 var(--mono); text-align: center; color: var(--text);
  background: var(--field); border: 1px solid var(--line); border-radius: 4px; padding: 4px 2px;
}
select {
  appearance: none; -webkit-appearance: none; width: 100%;
  font-family: var(--font); font-size: 13px; color: var(--text);
  background-color: var(--field);
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%),
    linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-repeat: no-repeat;
  background-size: 6px 6px, 6px 6px;
  background-position: calc(100% - 16px) calc(50% + 3px), calc(100% - 10px) calc(50% + 3px);
  border: 1px solid var(--line); border-radius: 6px; padding: 7px 30px 7px 9px;
}
/* 展开的选项列表：必须自带底色，否则系统弹层上浅字配浅底根本看不清 */
option { background: var(--surface-solid); color: var(--text); }
input[type=checkbox] { appearance: none; width: 16px; height: 16px; border-radius: 4px; border: 1px solid var(--line); background: var(--field); cursor: pointer; justify-self: start; }
input[type=checkbox]:checked { background: var(--accent); border-color: var(--accent); }
input[type=checkbox]:checked::after { content: ""; display: block; width: 4px; height: 8px; margin: 1px auto; border: solid var(--accent-ink); border-width: 0 2px 2px 0; transform: rotate(42deg); }
.colorwrap { display: flex; gap: 6px; align-items: center; }
input[type=color] { appearance: none; width: 30px; height: 26px; padding: 0; border: 1px solid var(--line); border-radius: 5px; background: none; cursor: pointer; }
input[type=color]::-webkit-color-swatch-wrapper { padding: 3px; }
input[type=color]::-webkit-color-swatch { border: none; border-radius: 3px; }
input.hex { flex: 1; min-width: 0; font: 11.5px/1 var(--mono); text-align: center; padding: 6px; color: var(--text); background: var(--field); border: 1px solid var(--line); border-radius: 5px; }

/* ——— 图层 / 对象 / 示例 ——— */
.chips { display: flex; flex-wrap: wrap; gap: 4px; }
.chip { font: 11px/1 var(--mono); padding: 4px 6px; border-radius: 4px; background: var(--field); color: var(--dim); border: 1px solid var(--line); }
.collist, .layerlist { display: flex; flex-direction: column; gap: 3px; }
.colitem, .lrow { display: grid; align-items: center; gap: 8px; border-radius: 6px; }
.colitem {
  grid-template-columns: 1fr auto; padding: 7px 9px; cursor: pointer; text-align: left;
  background: none; border: 1px solid transparent; color: var(--text); font-family: var(--font); font-size: 12.5px;
}
.colitem:hover { border-color: var(--accent); }
.colitem .cname { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.colitem .cext { font-size: 10.5px; color: var(--dim); }
.lrow { grid-template-columns: 16px 14px 1fr 26px; padding: 6px 8px; background: rgba(127, 140, 155, .07); }
.lrow.off { opacity: .45; }
.lrow .swatch { width: 12px; height: 12px; border-radius: 3px; border: 1px solid var(--line); }
.lrow .lname { background: none; border: none; color: var(--text); text-align: left; font: 12.5px var(--font); cursor: pointer; padding: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lrow .lname:hover { color: var(--accent); }
.lrow .count { font: 11px/1 var(--mono); color: var(--dim); text-align: center; }
.kv { display: flex; flex-direction: column; gap: 2px; }
.kvr { display: grid; grid-template-columns: 76px 1fr; font-size: 12px; padding: 3px 0; border-bottom: 1px solid var(--line); }
.kvr .k { color: var(--dim); }
.kvr .val { font-family: var(--mono); font-size: 11.5px; text-align: right; }
.warn { margin-top: 8px; padding: 7px 9px; border-left: 2px solid var(--warn); background: rgba(240, 169, 43, .10); color: var(--warn); font-size: 11.5px; }
.hint { font-size: 11.5px; color: var(--dim); }
.shareout { display: flex; gap: 6px; margin-top: 6px; }
.sharelink { flex: 1; min-width: 0; font: 11px/1 var(--mono); padding: 6px; border-radius: 5px; border: 1px solid var(--line); background: rgba(127, 140, 155, .10); color: var(--accent); }

/* ——— 视口浮层 ——— */
#labels { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.lbl {
  position: absolute; left: 0; top: 0;
  font: 700 calc(13.5px * var(--mark)) / 1.3 var(--mono); white-space: nowrap;
  padding: calc(3px * var(--mark)) calc(8px * var(--mark)); border-radius: 6px;
  background: var(--accent); color: var(--accent-ink);
  box-shadow: 0 2px 12px rgba(0, 0, 0, .45);
}
.lbl.pt {
  font-size: calc(11px * var(--mark)); padding: calc(2px * var(--mark)) calc(5px * var(--mark));
  background: rgba(18, 21, 25, .85); color: var(--accent); border: 1px solid var(--accent);
}
.lbl.measure { letter-spacing: .3px; text-shadow: 0 1px 0 rgba(255, 255, 255, .25); }
.lbl.preview { background: rgba(250, 204, 21, .95); color: #1b1400; }
.lbl.anno {
  background: rgba(20, 23, 27, .72); color: #eef3f8; border: 1px solid rgba(170, 180, 192, .45);
  font-weight: 400; padding: 1px 5px; box-shadow: none;
}
html[data-theme="light"] .lbl.anno { background: rgba(255, 255, 255, .86); color: #131a22; border-color: rgba(29, 35, 43, .3); }
.lbl.more { position: absolute; left: 0; top: 0; background: rgba(240, 169, 43, .9); color: #1b1400; }

/* ——— 精取放大镜 ——— */
#loupe { position: absolute; z-index: 11; width: 188px; pointer-events: none; }
#loupe canvas {
  display: block; width: 100%; aspect-ratio: 1 / 1; border-radius: 50%;
  background: #0b0e12; border: 2px solid var(--accent);
  box-shadow: 0 12px 30px rgba(0, 0, 0, .5);
}
.loupecap { display: flex; align-items: center; justify-content: space-between; gap: 6px; margin-top: 6px; }
.loupecap b {
  pointer-events: none; font: 600 12px var(--font); color: var(--accent);
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 3px 9px;
}
.loupezoom { display: flex; gap: 3px; pointer-events: auto; }
.loupezoom button {
  appearance: none; cursor: pointer; font: 11px var(--mono); padding: 4px 6px; border-radius: 5px;
  border: 1px solid var(--line); background: var(--surface); color: var(--dim);
}
.loupezoom button.on { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 700; }
body[data-pick="distance"] #viewport, body[data-pick="radius"] #viewport, body[data-pick="comment"] #viewport { cursor: crosshair; }

/* 站点水印由 app/main.js 的 killWatermark() 摘除节点处理（此元素的 shadow :host 会压过这里的 !important） */

#empty {
  position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 10px; text-align: center; padding: 20px; pointer-events: none;
}
#empty b { font-size: 22px; font-weight: 600; letter-spacing: 2px; color: var(--text); }
#empty p { margin: 0; font-size: 12.5px; color: var(--dim); }
#empty code { font: 12px var(--mono); color: var(--accent); }
#empty .dim { color: rgba(152, 161, 173, .7); font-size: 11.5px; }

#loading {
  position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 12px; background: rgba(15, 17, 20, .72); backdrop-filter: blur(3px); z-index: 12;
}
#loadingBig { font-size: 30px; font-weight: 700; letter-spacing: 6px; color: var(--accent); animation: pulse 1.5s ease-in-out infinite; }
#loadingSub { font-size: 12px; color: var(--dim); font-family: var(--mono); max-width: 80%; }
.loadmeta { display: flex; align-items: center; gap: 10px; margin-top: 4px; }
#loadingTime { font: 13px/1 var(--mono); color: var(--accent); background: rgba(56,189,248,.12); padding: 4px 8px; border-radius: 4px; }
@keyframes pulse { 0%, 100% { opacity: .5; } 50% { opacity: 1; } }

#dropzone {
  position: fixed; inset: 0; z-index: 40; display: none; align-items: center; justify-content: center;
  background: rgba(56, 189, 248, .12); border: 3px dashed var(--accent);
  font-size: 24px; font-weight: 700; letter-spacing: 4px; color: var(--accent); pointer-events: none;
}
#dropzone.on { display: flex; }

/* ——— 状态栏 ——— */
#statusbar {
  display: flex; align-items: center; gap: 12px; padding: 0 12px; font-size: 11.5px;
  background: var(--surface-solid); border-top: 1px solid var(--line); color: var(--dim);
}
#statusLeft { color: var(--text); font-family: var(--mono); max-width: 40%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#statusRight { font-family: var(--mono); }
#toolBadge { display: none; padding: 2px 8px; border-radius: 4px; background: var(--accent); color: var(--accent-ink); font-weight: 600; }
#toolBadge.on { display: inline-block; }

/* ——— toast ——— */
.toast {
  position: fixed; right: 16px; bottom: 46px; z-index: 50; display: none; flex-direction: column; gap: 3px;
  max-width: 380px; padding: 11px 14px; border-radius: 8px;
  background: var(--surface-solid); border: 1px solid var(--accent); box-shadow: 0 12px 40px rgba(0, 0, 0, .4);
}
.toast.on { display: flex; }
.toast b { font-size: 13px; }
.toast span { font-size: 11.5px; color: var(--dim); font-family: var(--mono); }



/* ——— 右侧工具条（全显 / 长度 / 半径 / 批注 / 剖切 / 清除）——— */
/* 只留紧贴文字的小片半透明底，别挡住模型看 */
#rail {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  display: flex; flex-direction: column; gap: 7px; z-index: 9; align-items: flex-end;
}
.railgrp { display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }
.railbtn {
  appearance: none; cursor: pointer; min-width: 46px; padding: 5px 10px; border-radius: 7px;
  border: 1px solid rgba(56, 189, 248, .34); background: rgba(10, 14, 20, .42);
  color: #7dd3fc; font: 600 12.5px var(--font); text-shadow: 0 1px 2px rgba(0, 0, 0, .55);
  transition: .12s;
}
.railbtn:hover { border-color: var(--accent); color: #bae6fd; background: rgba(10, 14, 20, .58); }
.railbtn.on { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); text-shadow: none; }
html[data-theme="light"] .railbtn {
  background: rgba(255, 255, 255, .5); border-color: rgba(2, 132, 199, .38); color: #0369a1; text-shadow: none;
}
html[data-theme="light"] .railbtn:hover { background: rgba(255, 255, 255, .72); color: #075985; }
html[data-theme="light"] .railbtn.on { background: var(--accent); color: var(--accent-ink); }
.card {
  width: 214px; padding: 10px; border-radius: 12px; background: var(--surface);
  border: 1px solid var(--line); backdrop-filter: blur(12px); box-shadow: 0 12px 34px rgba(0, 0, 0, .35);
}
.cardrow { display: flex; flex-wrap: wrap; gap: 5px; }
.cbtn {
  appearance: none; cursor: pointer; flex: 1 1 auto; min-width: 32px; padding: 6px 4px;
  font: 11.5px var(--font); border-radius: 6px; border: 1px solid var(--line);
  background: var(--field); color: var(--text);
}
.cbtn.on { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.cbtn.wide { flex: 1 1 100%; }
.cardpos { display: flex; align-items: center; gap: 6px; margin-top: 9px; font-size: 11.5px; color: var(--dim); }
.cardpos input[type=range] { flex: 1; }
.cardpos b { font: 11px/1 var(--mono); min-width: 40px; text-align: center; padding: 4px 2px; border-radius: 4px; background: var(--field); border: 1px solid var(--line); color: var(--text); }

/* ——— 批注标记 ——— */
.lbl.comment {
  pointer-events: auto; display: flex; align-items: center; gap: 6px; cursor: text;
  background: rgba(240, 169, 43, .95); color: #241800; font-family: var(--font); font-weight: 600;
  font-size: calc(12.5px * var(--mark));
}
.lbl.comment i {
  font-style: normal; width: 17px; height: 17px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(0, 0, 0, .22); font-size: 11px;
}
.lbl.comment .ctext { max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lbl.comment button {
  appearance: none; border: none; background: transparent; color: #241800; cursor: pointer;
  font-size: 15px; line-height: 1; padding: 0 2px;
}
.lbl.comment .cinput {
  border: none; border-radius: 4px; background: #fffaf0; color: #241800;
  font: 600 12px var(--font); padding: 2px 5px; width: 150px;
}

/* ——— 制作署名（右下角，接替原水印位置）——— */
#credit {
  position: fixed; right: 14px; bottom: calc(38px + env(safe-area-inset-bottom)); z-index: 40;
  padding: 5px 11px; border-radius: 999px; font-size: 11.5px; letter-spacing: .3px;
  background: var(--surface); color: var(--dim); border: 1px solid var(--line);
  backdrop-filter: blur(8px); max-width: min(58vw, 260px);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; pointer-events: none;
}
#credit.hidden { display: none; }

/* ——— 手机端 ——— */
@media (max-width: 760px), (max-height: 560px) {
  #menubar { padding: 0 8px; gap: 6px; }
  .brand b { font-size: 13.5px; letter-spacing: 0; }
  #menus { gap: 0; }
  #menus button { padding: 8px 7px; font-size: 12px; }
  .keys { display: none; }
  #panel {
    left: 0; right: 0; top: auto; bottom: 0; width: auto;
    max-height: min(64vh, 64dvh);
    border-right: none; border-top: 1px solid var(--line); border-radius: 16px 16px 0 0;
    padding-bottom: env(safe-area-inset-bottom);
  }
  #panelBody { max-height: calc(min(64vh, 64dvh) - 48px); -webkit-overflow-scrolling: touch; }
  .panelhead { padding: 14px 14px 10px; }
  .panelhead button { padding: 7px 12px; font-size: 12px; }
  .field { grid-template-columns: 82px 1fr; gap: 6px; }
  .rangewrap { grid-template-columns: 1fr 50px; }
  input[type=range] { height: 20px; }
  .railbtn { min-height: 36px; width: auto; padding: 8px 13px; font-size: 12.5px; }
  #rail { right: 8px; gap: 6px; }
  .card { width: 178px; }
  #statusbar { font-size: 11px; padding: 0 8px; gap: 8px; }
  #statusLeft { max-width: 52%; }
  .toast { left: 8px; right: 8px; bottom: 82px; max-width: none; }
  #app.panel-open #rail { opacity: 0; pointer-events: none; transform: translateY(-50%) translateX(12px); }
  #credit { right: 8px; bottom: calc(34px + env(safe-area-inset-bottom)); font-size: 11px; }
  #loadingBig { font-size: 22px; letter-spacing: 3px; }
  .grid9 { grid-template-columns: repeat(3, 1fr); }
  .grid9 button { padding: 10px 4px; }
}

/* ——— 后台上传页 ——— */
#admin { display: flex; flex-direction: column; height: 100%; }
.adminmain { flex: 1; overflow: auto; display: flex; justify-content: center; padding: 22px 14px 60px; }
.cardbox {
  width: min(620px, 100%); padding: 20px; border-radius: 14px;
  background: var(--surface); border: 1px solid var(--line); backdrop-filter: blur(12px);
}
.cardbox h1 { margin: 0 0 14px; font-size: 18px; letter-spacing: 1px; }
.cardbox h2 { margin: 22px 0 8px; font-size: 12px; color: var(--dim); letter-spacing: 2px; font-weight: 600; }
.field.wide { grid-template-columns: 1fr; gap: 5px; margin: 10px 0; }
.field.wide .fname { font-size: 11.5px; }
.field input[type=text], .field input[type=password], .field input[type=file] {
  font: 13px var(--font); color: var(--text); background: rgba(127, 140, 155, .10);
  border: 1px solid var(--line); border-radius: 7px; padding: 9px 10px; width: 100%;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.btn.primary:disabled { opacity: .45; cursor: not-allowed; }
.btn.ghost { background: transparent; text-decoration: none; }
.off { display: none !important; }
.mono { font-family: var(--mono); font-size: 12px; }
.hint { font-size: 11.5px; color: var(--dim); }
.hist { display: flex; flex-direction: column; gap: 7px; }
.hrow { display: grid; grid-template-columns: 1fr; gap: 5px; padding: 9px; border-radius: 9px; background: rgba(127, 140, 155, .07); border: 1px solid var(--line); }
.hrow .hname { font-size: 11px; color: var(--dim); }
.hrow .hlink { font-size: 11.5px; }
.hrow .row, .hrow > button, .hrow > a { justify-self: start; }
@media (min-width: 620px) { .hrow { grid-template-columns: 170px 1fr auto auto; align-items: center; } }

/* ——— 左侧「标注」工具条 ——— */
#railLeft {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  display: flex; flex-direction: column; gap: 6px; z-index: 9; align-items: flex-start;
  transition: transform .18s ease, opacity .18s ease;
}
#app.panel-open #railLeft { transform: translateY(-50%) translateX(322px); }
#btnSave { background: rgba(30, 20, 4, .42); border-color: rgba(240, 169, 43, .45); color: #f7c558; }
#btnSave:hover { color: #ffe0a0; background: rgba(30, 20, 4, .58); }
#btnSave.on { background: var(--warn); border-color: var(--warn); color: #241800; }
.brand span {
  font-size: 11px; color: var(--dim); letter-spacing: .2px; text-transform: none;
  max-width: 34vw; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
@media (max-width: 760px) {
  #app.panel-open #railLeft { transform: none; opacity: 0; pointer-events: none; }
  .brand span { max-width: 34vw; display: inline-block; }
  #railLeft { left: 8px; }
}

/* ——— 模型首页（目录）——— */
#home { display: flex; flex-direction: column; height: 100%; }
.homectl { display: flex; align-items: center; gap: 8px; }
.homectl input[type=search] {
  font: 13px var(--font); color: var(--text); background: var(--field);
  border: 1px solid var(--line); border-radius: 7px; padding: 7px 10px; width: min(38vw, 260px);
}
.homectl .btn { text-decoration: none; display: inline-block; }
.homemain { flex: 1; overflow: auto; padding: 18px 16px 40px; }
.homestate { display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 48px 16px; text-align: center; }
.homestate p { margin: 0; font-size: 14px; color: var(--dim); }
.homestate .why { font: 12px var(--mono); color: var(--warn); }
.homestate.off { display: none; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(232px, 1fr)); gap: 12px; max-width: 1180px; margin: 0 auto; }
.mcard {
  display: flex; flex-direction: column; gap: 5px; padding: 14px 15px; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--line); text-decoration: none; color: var(--text);
  transition: .12s; min-height: 92px;
}
.mcard:hover { border-color: var(--accent); transform: translateY(-1px); }
.mcard .ctitle { font-size: 15.5px; font-weight: 600; letter-spacing: .3px; word-break: break-all; }
.mcard .csub { font-size: 12.5px; color: var(--dim); }
.mcard .cmeta { margin-top: auto; font: 11.5px var(--mono); color: var(--dim); }
@media (max-width: 760px) {
  #menubar { flex-wrap: wrap; height: auto; min-height: 44px; padding: 6px 8px; gap: 6px; }
  .homectl { width: 100%; }
  .homectl input[type=search] { flex: 1; width: auto; }
  .cards { grid-template-columns: 1fr 1fr; gap: 9px; }
  .mcard { padding: 11px 12px; min-height: 84px; }
  .mcard .ctitle { font-size: 14px; }
  .mcard .cmeta { font-size: 10.5px; }
}
@media (max-width: 430px) { .cards { grid-template-columns: 1fr; } }

/* ——— 后台：已上传模型管理 ——— */
.mlist { display: flex; flex-direction: column; gap: 7px; }
.mrow { display: grid; grid-template-columns: 104px minmax(0, 1fr); gap: 4px 12px; align-items: start; padding: 11px 12px; border-radius: 10px; background: rgba(127, 140, 155, .07); border: 1px solid var(--line); }
.mbody { display: grid; gap: 4px 10px; min-width: 0; }
.mthumb { width: 104px; height: 70px; border-radius: 8px; object-fit: cover; border: 1px solid var(--line); background: rgba(127, 140, 155, .1); }
.mthumb.none { display: flex; align-items: center; justify-content: center; font: 10.5px var(--mono); color: var(--dim); }
@media (max-width: 720px) { .mrow { grid-template-columns: 84px minmax(0, 1fr); } .mthumb, .mthumb.none { width: 84px; height: 58px; } }
.mrow .mtop { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.mrow .mname { font-size: 14px; font-weight: 600; color: var(--text); word-break: break-all; }
.mrow .mfmt { font: 11px var(--mono); color: var(--dim); }
.mrow .mmeta { font: 11.5px var(--mono); color: var(--dim); }
.mrow .macts { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 3px; }
.mrow .macts .btn { padding: 5px 9px; font-size: 11.5px; }
.mrow.gone { opacity: .45; }
.mrow .danger { color: #e0556a; border-color: rgba(224, 85, 106, .45); }
.admincol { display: flex; flex-direction: column; gap: 16px; width: min(880px, 100%); }
.cardbox .sech { margin: 0 0 10px; font-size: 16px; letter-spacing: .5px; }
.mrow input[type=text] {
  font: 12.5px var(--font); color: var(--text); background: var(--field);
  border: 1px solid var(--line); border-radius: 6px; padding: 7px 9px;
}
.editbox { display: flex; flex-direction: column; gap: 2px; padding: 10px 12px; border-radius: 10px; background: rgba(127, 140, 155, .12); border: 1px solid var(--accent); }
.editbox .macts { display: flex; gap: 6px; margin-top: 6px; }

/* ——— 后台页拿到手机上：按钮要点得动，输字不要把页面放大 ——— */
@media (max-width: 720px), (pointer: coarse) {
  .adminmain { padding: 14px 10px calc(30px + env(safe-area-inset-bottom)); }
  .cardbox { padding: 16px 14px; border-radius: 12px; }
  /* iOS 里字号小于 16px 的输入框一被点，整页就放大且回不去 */
  .field input[type=text], .field input[type=password], .field input[type=file], .mrow input[type=text] {
    font-size: 16px; padding: 12px 11px;
  }
  .field.wide .fname { font-size: 13px; }
  #admin .btn {
    display: inline-flex; align-items: center; min-height: 42px;
    padding: 10px 14px; font-size: 13.5px;
  }
  #btnUpload { width: 100%; justify-content: center; }
  .mrow .macts { gap: 7px; }
  .mrow .macts .btn { min-height: 40px; padding: 9px 13px; font-size: 13px; }
  /* 原生的「选择文件」按钮太小，包一层让它变成一个大按钮 */
  .field input[type=file] { padding: 10px; }
  .field input[type=file]::file-selector-button {
    min-height: 40px; margin: 0 10px 0 0; padding: 0 14px; border-radius: 8px;
    border: 1px solid var(--line); background: var(--field); color: var(--text);
    font: 13.5px var(--font);
  }
  .note, .hint { font-size: 12.5px; }
  .hrow .hname { font-size: 12px; }
  .hrow .hlink { font-size: 12.5px; }
}

/* 触屏：毛玻璃要每帧重新采样，手机上最费，一律换成实色并去掉过渡 */
@media (hover: none), (pointer: coarse) {
  #panel, .card, #credit, .toast, #loading { backdrop-filter: none !important; -webkit-backdrop-filter: none !important; }
  #panel, .card, #credit, .toast { background: var(--surface-solid); }
  #loading { background: rgba(15, 17, 20, .94); }
  .railbtn, .card, .btn, .cbtn { transition: none !important; }
  * { -webkit-tap-highlight-color: transparent; }
}