/* =============================================================================
   镜渊 · 找不同 —— 界面层样式
   说明：这里只负责「长相」与「排版」。
   所有随时间的取值（位移、缩放、透明度、填充、光晕强度）都由 js 每帧写入，
   因此本文件刻意不含 transition / animation —— 动效的唯一来源是主循环。
   ========================================================================== */

:root{
  --hud-top: 86px;
  --hud-bot: 96px;
  --ink: #eaf4ff;
  --ink-dim: #9fb4cc;
  --ink-mute: #63788f;
  --cy: #58e8ff;
  --cy-d: #1d7f9c;
  --vi: #a97bff;
  --mag: #ff6bd6;
  --gold: #ffd479;
  --bg0: #04070f;
  --glass: rgba(10,20,34,.55);
  --line: rgba(120,190,230,.22);
  --font: "PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei",system-ui,"Segoe UI",Roboto,sans-serif;
  --mono: ui-monospace,"SFMono-Regular",Consolas,"Liberation Mono",monospace;
}

*{ box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html,body{
  margin:0; padding:0; height:100%; overflow:hidden;
  background: var(--bg0); color: var(--ink); font-family: var(--font);
  overscroll-behavior:none; user-select:none; cursor:default;
}

#stage{ position:fixed; inset:0; width:100%; height:100%; display:block; z-index:0; }

#ui{ position:fixed; inset:0; z-index:1; pointer-events:none; }
/* ⚠ 按钮默认不吃事件：页面容器虽然 opacity:0，但子元素一旦显式 auto 就仍然会接住点击
   —— 曾经因此让「看不见的主菜单开始按钮」在游戏进行中把点按吃掉、还直接跳了关。
   只有「当前页」与「已打开的浮层」里的按钮才可点。 */
#ui button{ pointer-events:none; font-family:inherit; color:inherit; }
#ui[data-page="menu"] #pg-menu button,
#ui[data-page="howto"] #pg-howto button,
#ui[data-page="game"] #pg-game button,
#gbar button,
.ov.is-live button{ pointer-events:auto; }

/* ---------- 全局栏（跨页存在，切页只做形变） ---------- */
#gbar{
  position:absolute; top:0; left:0; right:0; height:52px;
  display:flex; align-items:center; gap:8px; padding:8px 12px 0;
  opacity:0;
}
.gbtn{
  appearance:none; border:1px solid var(--line); background:var(--glass);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-radius:999px; height:36px; min-width:36px; padding:0 12px;
  display:inline-flex; align-items:center; gap:6px; color:var(--ink-dim);
  font-size:13px; letter-spacing:.02em; cursor:pointer;
}
.gbtn svg{ width:18px; height:18px; fill:none; stroke:currentColor; stroke-width:1.9; stroke-linecap:round; stroke-linejoin:round; }
.gbtn .wv{ stroke:var(--cy); opacity:.9 }
.gbtn .w2{ opacity:.55 }
.gbtn.is-off .wv{ opacity:0 }
.gbtn.is-off{ color:var(--ink-mute) }
#g-back{ opacity:0 }
.g-mid{ flex:1; display:flex; justify-content:center; }
.g-title{ font-size:12px; letter-spacing:.34em; color:var(--ink-mute); text-transform:uppercase; }
.g-right{ display:flex; gap:8px; align-items:center; }
.g-token b{ font-size:13px; color:var(--gold); font-variant-numeric:tabular-nums; }
.tok-ico{ fill:rgba(255,212,121,.18); stroke:var(--gold); }

/* ---------- 页面容器（无 display:none，全部靠 js 写 opacity/transform） ---------- */
.page{
  position:absolute; inset:0; opacity:0;
  /* 注意：页面容器**永远不吃指针事件**。它铺满整屏，一旦 auto 就会把点按
     全部吞掉，画布上的「点差异」永远收不到事件（这是踩过的坑）。
     需要交互的地方逐个开：按钮、记录面板、说明页的滚动容器。 */
  pointer-events:none;
  display:flex; flex-direction:column;
}

/* ============ 主菜单 ============ */
#pg-menu{ justify-content:flex-end; padding:0 0 18px; }
.menu-wrap{
  flex:1; display:flex; flex-direction:column; justify-content:flex-end;
  padding:64px 18px 0; gap:10px;
}
.menu-left{ display:flex; flex-direction:column; gap:12px; }

.brand{ padding:0 2px 2px; }
.brand-eyebrow{
  font-size:9.5px; letter-spacing:.28em; color:var(--cy); opacity:.72;
  margin-bottom:6px; font-family:var(--mono);
}
.title{
  margin:0; font-size:42px; line-height:1.02; font-weight:700; letter-spacing:.02em;
  display:block;
}
.title .ch{ display:inline-block; will-change:transform,opacity; }
.title .ch-sep{ opacity:.35 }
.tag{ margin:8px 0 0; font-size:12.5px; color:var(--ink-dim); letter-spacing:.12em; }

.menu-progress{
  border:1px solid var(--line); border-radius:14px; background:var(--glass);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  padding:11px 13px 12px;
}
.mp-head{ display:flex; justify-content:space-between; align-items:baseline; }
.mp-k{ font-size:11px; color:var(--ink-mute); letter-spacing:.18em; }
.mp-lv{ font-size:12px; color:var(--ink-dim); font-variant-numeric:tabular-nums; }
.mp-lv b{ font-size:17px; color:var(--cy); }
.mp-bar{
  position:relative; height:5px; border-radius:3px; margin:9px 0 8px;
  background:rgba(120,190,230,.13); overflow:visible;
}
.mp-bar i{
  position:absolute; left:0; top:0; bottom:0; width:0%;
  border-radius:3px; background:linear-gradient(90deg,var(--cy-d),var(--cy) 60%,var(--vi));
  box-shadow:0 0 12px rgba(88,232,255,.55);
}
.mp-bar u{
  position:absolute; top:-3.5px; width:12px; height:12px; left:0; margin-left:-6px;
  border-radius:50%; background:#eafcff; box-shadow:0 0 14px 2px rgba(88,232,255,.85);
}
.mp-foot{ display:flex; justify-content:space-between; align-items:center; }
.mp-stars{ display:flex; gap:5px; }
.mp-stars s{ width:13px; height:13px; display:block; text-decoration:none;
  background:radial-gradient(circle at 50% 50%, rgba(255,212,121,.9), rgba(255,212,121,.15) 62%, transparent 70%);
  clip-path:polygon(50% 0,63% 36%,100% 38%,71% 60%,82% 100%,50% 76%,18% 100%,29% 60%,0 38%,37% 36%);
  opacity:.28;
}
.mp-stars s.on{ opacity:1; filter:drop-shadow(0 0 6px rgba(255,212,121,.8)); }
.mp-stars s.half{ opacity:.6 }
.mp-total{ font-size:11px; color:var(--ink-mute); letter-spacing:.1em; }
.mp-total b{ color:var(--ink); font-size:14px; margin-left:5px; font-variant-numeric:tabular-nums; }
.mp-tokens{ display:flex; gap:4px; margin-top:9px; align-items:center; }
.mp-tokens i{ width:9px; height:9px; border-radius:50%; background:var(--gold); box-shadow:0 0 8px rgba(255,212,121,.7); }
.mp-tokens i.off{ background:rgba(255,212,121,.16); box-shadow:none; }

.menu-actions{ display:flex; flex-direction:column; gap:9px; }
.act-main{
  position:relative; overflow:hidden;
  appearance:none; border:1px solid rgba(88,232,255,.5); border-radius:16px;
  background:linear-gradient(135deg, rgba(20,80,110,.85), rgba(60,30,120,.7));
  padding:14px 16px 15px; text-align:left; cursor:pointer;
  box-shadow:0 8px 30px rgba(10,60,90,.5), inset 0 1px 0 rgba(255,255,255,.12);
}
.am-glow{
  position:absolute; top:-60%; left:-30%; width:60%; height:220%;
  background:linear-gradient(90deg,transparent,rgba(190,245,255,.34),transparent);
  transform:translateX(0) rotate(14deg);
}
.am-label{ display:block; font-size:23px; font-weight:600; letter-spacing:.06em; }
.am-sub{ display:block; font-size:11.5px; color:rgba(190,235,255,.72); margin-top:3px; letter-spacing:.08em; }
.act-row{ display:flex; gap:9px; }
.act-mid{
  flex:1; appearance:none; border:1px solid var(--line); border-radius:12px;
  background:var(--glass); padding:11px 12px; font-size:13.5px; cursor:pointer;
  color:var(--ink-dim); letter-spacing:.06em;
}
.act-tools{ display:flex; gap:8px; padding-top:1px; }
.act-tool{
  width:34px; height:34px; border-radius:10px; border:1px solid rgba(120,190,230,.16);
  background:rgba(8,16,28,.5); display:flex; align-items:center; justify-content:center; cursor:pointer;
}
.act-tool svg{ width:17px; height:17px; fill:none; stroke:var(--ink-mute); stroke-width:1.8; stroke-linecap:round; }
.act-tool:hover svg{ stroke:var(--cy) }

.menu-scene-note{
  position:absolute; left:18px; top:60px; display:flex; align-items:center; gap:7px;
  font-size:11px; color:var(--ink-mute); letter-spacing:.1em;
}
.note-dot{ width:6px; height:6px; border-radius:50%; background:var(--cy); box-shadow:0 0 10px var(--cy); }
.menu-egg-hint{
  position:absolute; right:18px; top:60px; font-size:10.5px; color:rgba(120,190,230,.4);
  letter-spacing:.1em; opacity:0;
}

.menu-records{
  position:absolute; left:18px; right:18px; bottom:18px; top:auto;
  border:1px solid var(--line); border-radius:16px;
  background:linear-gradient(180deg, rgba(10,22,38,.94), rgba(6,12,22,.96));
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  padding:12px 13px 13px; transform-origin:50% 100%; opacity:0;
  pointer-events:none; max-height:66%; overflow:hidden; display:flex; flex-direction:column;
  box-shadow:0 -14px 40px rgba(0,0,0,.5);
}
.menu-records.is-open{ pointer-events:auto; }
#ui[data-page="menu"] .menu-records.is-open{ pointer-events:auto; }
.rec-head{ display:flex; justify-content:space-between; align-items:center; margin-bottom:8px;
  font-size:12px; letter-spacing:.2em; color:var(--ink-dim); }
.rec-close{ appearance:none; background:none; border:0; font-size:20px; line-height:1; color:var(--ink-mute); cursor:pointer; padding:0 2px; }
.rec-list{ display:flex; flex-direction:column; gap:6px; overflow:auto; }
.rec-item{
  display:grid; grid-template-columns:26px 1fr auto auto; gap:9px; align-items:center;
  padding:7px 9px; border-radius:10px; background:rgba(120,190,230,.055);
  border:1px solid rgba(120,190,230,.1);
}
.rec-item.lock{ opacity:.4 }
.ri-no{ font-family:var(--mono); font-size:11px; color:var(--cy) }
.ri-name{ font-size:12.5px }
.ri-stars{ display:flex; gap:3px }
.ri-stars s{ width:9px;height:9px;display:block;background:var(--gold);opacity:.2;
  clip-path:polygon(50% 0,63% 36%,100% 38%,71% 60%,82% 100%,50% 76%,18% 100%,29% 60%,0 38%,37% 36%); }
.ri-stars s.on{ opacity:1 }
.ri-best{ font-family:var(--mono); font-size:11px; color:var(--ink-dim); font-variant-numeric:tabular-nums }
.rec-foot{ margin-top:9px; font-size:11px; color:var(--ink-mute); letter-spacing:.06em }

/* ============ 玩法说明 ============ */
#pg-howto{ padding:56px 0 14px; }
.howto-wrap{ flex:1; display:flex; flex-direction:column; min-height:0; padding:0 16px; }
.howto-head{ padding:6px 2px 10px; }
.ht-title{ margin:0; font-size:26px; letter-spacing:.06em }
.ht-sub{ margin:6px 0 0; font-size:11.5px; color:var(--ink-mute); letter-spacing:.05em }
.ht-tabs{ display:flex; gap:7px; margin-top:11px }
.ht-tab{
  appearance:none; border:1px solid var(--line); background:rgba(8,16,28,.5);
  color:var(--ink-mute); border-radius:999px; padding:6px 13px; font-size:12px; cursor:pointer; letter-spacing:.08em;
}
.ht-tab.is-on{ color:#06131c; background:linear-gradient(180deg,#9deeff,#4fd6f5); border-color:#9deeff; font-weight:600; }
.howto-chapters{ flex:1; min-height:0; overflow:hidden; position:relative; }
/* 说明页没有画布交互，可以安全地开启指针事件（为了滚动）——
   但必须限定在当前页就是说明页，否则它会隔着 opacity:0 吞掉游戏页的点按 */
.howto-chapter{ position:absolute; inset:0; display:flex; flex-direction:column; gap:9px; overflow:auto; padding-bottom:14px; }
#ui[data-page="howto"] .howto-chapter{ pointer-events:auto; }
.rule{
  display:grid; grid-template-columns:132px 1fr; gap:11px; align-items:center;
  border:1px solid var(--line); border-radius:14px; padding:10px 11px;
  background:linear-gradient(135deg, rgba(12,24,40,.66), rgba(8,14,26,.5));
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.rule-demo{ position:relative; height:88px; border-radius:10px; overflow:hidden;
  background:#04080f; border:1px solid rgba(120,190,230,.14) }
.rule-demo canvas{ width:100%; height:100%; display:block }
.rule-body h3{ margin:0 0 4px; font-size:14px; letter-spacing:.05em }
.rule-body p{ margin:0; font-size:11.5px; line-height:1.62; color:var(--ink-dim) }
.rule-body .rline{ display:block; }
.rule.is-live{ border-color:rgba(88,232,255,.45) }

/* ============ 游戏界面 ============ */
#pg-game{ padding:0 }
/* HUD 只在游戏页可点：否则它在别的页面上虽然透明，按钮仍然会接住点击 */
.hud{ position:absolute; inset:0; pointer-events:none; }
.hud button{ pointer-events:none }
#ui[data-page="game"] .hud button{ pointer-events:auto }
.hud-top{
  position:absolute; top:52px; left:0; right:0; height:calc(var(--hud-top) - 52px);
  display:flex; justify-content:space-between; align-items:flex-start;
  padding:6px 14px 0;
}
.hud-lv{ display:flex; gap:9px; align-items:center }
.lv-num{ font-family:var(--mono); font-size:26px; color:var(--cy); opacity:.9;
  text-shadow:0 0 16px rgba(88,232,255,.6); font-variant-numeric:tabular-nums }
.lv-meta{ display:flex; flex-direction:column; gap:1px }
.lv-meta b{ font-size:13.5px; font-weight:600; letter-spacing:.06em }
.lv-meta i{ font-size:10px; font-style:normal; color:var(--ink-mute); letter-spacing:.14em }
.hud-right{ display:flex; align-items:center; gap:11px }
.score-box{ text-align:right; position:relative }
.sc-label{ font-size:10px; color:var(--ink-mute); letter-spacing:.2em; display:block }
.sc-num{ font-family:var(--mono); font-size:24px; font-variant-numeric:tabular-nums;
  display:inline-block; letter-spacing:.01em; text-shadow:0 0 18px rgba(88,232,255,.45) }
.sc-delta{ position:absolute; right:0; top:-2px; font-family:var(--mono); font-size:12px; color:var(--gold); opacity:0 }
.combo-box{ position:relative; width:44px; height:44px; display:flex; align-items:center; justify-content:center }
.cb-ring{ position:absolute; inset:0; border-radius:50%; border:1.5px solid rgba(169,123,255,.5); }
.cb-txt{ text-align:center; line-height:1 }
.cb-txt b{ font-family:var(--mono); font-size:14px; color:var(--vi); display:block }
.cb-txt i{ font-size:8.5px; font-style:normal; color:var(--ink-mute); letter-spacing:.1em }

.hud-mid{
  position:absolute; top:calc(var(--hud-top) - 4px); left:0; right:0;
  display:flex; flex-direction:column; align-items:center; gap:5px;
}
.mirror-dots{ display:flex; gap:7px; align-items:center }
.mirror-dots i{
  width:12px; height:12px; display:block; border-radius:50%;
  border:1.4px solid rgba(120,190,230,.45); background:rgba(10,22,38,.6);
}
.mirror-dots i.found{
  border-color:var(--gold);
  background:radial-gradient(circle at 40% 35%, #fff6dc, var(--gold) 55%, #a4700f);
  box-shadow:0 0 12px rgba(255,212,121,.85);
}
.hud-hintline{ font-size:10.5px; color:var(--ink-mute); letter-spacing:.14em; }

.hud-bottom{
  position:absolute; bottom:0; left:0; right:0; height:var(--hud-bot);
  display:flex; flex-direction:column; justify-content:flex-end; gap:9px; padding:0 14px 14px;
}
.timer-wrap{ display:flex; align-items:center; gap:9px }
.timer-bar{
  position:relative; flex:1; height:9px; border-radius:5px; overflow:hidden;
  background:rgba(120,190,230,.12); border:1px solid rgba(120,190,230,.16);
}
.timer-fill{
  position:absolute; inset:0; border-radius:4px; transform-origin:0 50%;
  background:linear-gradient(90deg,#1a7fa6,#58e8ff 55%,#bff6ff);
  box-shadow:0 0 14px rgba(88,232,255,.5);
}
.timer-wave{ position:absolute; inset:0; width:100%; height:100%; }
.timer-wave path{ fill:rgba(255,255,255,.5) }
.timer-num{ font-family:var(--mono); font-size:14px; min-width:52px; text-align:right;
  font-variant-numeric:tabular-nums; color:var(--ink-dim) }
.timer-bar.is-low .timer-fill{ background:linear-gradient(90deg,#a12b4d,#ff6b8f 60%,#ffd0d8) }
.hud-tools{ display:flex; gap:8px }
.tool-btn{
  flex:1; appearance:none; border:1px solid var(--line); border-radius:12px;
  background:var(--glass); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px);
  color:var(--ink-dim); padding:8px 6px; font-size:12px; cursor:pointer;
  display:flex; align-items:center; justify-content:center; gap:5px;
}
.tool-btn b{ font-family:var(--mono); color:var(--gold); font-size:11px }
.tool-btn .tb-ico{ font-size:13px; color:var(--cy) }
.tool-btn[disabled]{ opacity:.35 }
.tool-btn.is-off{ border-color:rgba(169,123,255,.5); color:var(--vi) }

/* ============ 浮层 ============ */
#ov-root{ position:absolute; inset:0; pointer-events:none; }
.ov{
  position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  opacity:0; pointer-events:none;
}
.ov.is-live{ pointer-events:auto }
.ov::before{
  /* 整屏只压暗，不做整屏 backdrop 模糊 —— 全屏 backdrop-filter 会把浮层打开时的
     帧率拖到 56fps 上下（实测），换到小面积的 .panel 上做玻璃效果同样好看。 */
  content:""; position:absolute; inset:0; background:rgba(3,7,14,.5);
}
.panel{
  position:relative; width:min(420px,90vw); max-height:86vh; overflow:auto;
  border:1px solid var(--line); border-radius:18px;
  background:linear-gradient(180deg, rgba(12,24,42,.95), rgba(6,12,22,.96));
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  box-shadow:0 24px 70px rgba(0,0,0,.6), inset 0 1px 0 rgba(255,255,255,.07);
  padding:15px 16px 16px;
}
.panel.narrow{ width:min(340px,88vw) }
.panel-head{ display:flex; justify-content:space-between; align-items:center; margin-bottom:10px }
.panel-head h3{ margin:0; font-size:16px; letter-spacing:.14em }
.pclose{ appearance:none; background:none; border:0; font-size:22px; color:var(--ink-mute); cursor:pointer; line-height:1 }
.panel-body{ display:flex; flex-direction:column; gap:11px }
.panel-foot{ display:flex; gap:9px; margin-top:15px }
.btn{
  flex:1; appearance:none; border:1px solid rgba(88,232,255,.5); border-radius:12px;
  background:linear-gradient(135deg, rgba(24,92,124,.9), rgba(58,32,110,.8));
  color:var(--ink); padding:11px 12px; font-size:14px; cursor:pointer; letter-spacing:.08em;
}
.btn.ghost{ background:rgba(10,20,34,.7); border-color:var(--line); color:var(--ink-dim) }
.set-row{ display:flex; flex-direction:column; gap:6px; padding-bottom:9px; border-bottom:1px solid rgba(120,190,230,.09) }
.set-row label{ font-size:11.5px; color:var(--ink-mute); letter-spacing:.14em }
.set-note{ margin:0; font-size:10.5px; color:var(--ink-mute); line-height:1.6 }
.set-live{ font-family:var(--mono); font-size:12px; color:var(--cy) }
.seg{ display:flex; gap:6px }
.seg button{
  flex:1; appearance:none; border:1px solid var(--line); background:rgba(8,16,28,.6);
  color:var(--ink-mute); border-radius:9px; padding:7px 4px; font-size:12px; cursor:pointer;
}
.seg button.is-on{ color:#06131c; background:linear-gradient(180deg,#9deeff,#4fd6f5); border-color:#9deeff; font-weight:600 }
.pause-stats{ display:grid; grid-template-columns:1fr 1fr; gap:8px }
.pause-stats div{ background:rgba(120,190,230,.06); border-radius:10px; padding:8px 9px }
.pause-stats span{ display:block; font-size:10px; color:var(--ink-mute); letter-spacing:.14em }
.pause-stats b{ font-family:var(--mono); font-size:16px }

.result-card{
  position:relative; width:min(400px,90vw); border:1px solid var(--line); border-radius:20px;
  background:linear-gradient(180deg, rgba(14,28,48,.96), rgba(6,12,22,.97));
  padding:20px 18px 16px; text-align:center;
  box-shadow:0 26px 80px rgba(0,0,0,.65), inset 0 1px 0 rgba(255,255,255,.08);
}
.res-crown{ position:absolute; left:50%; top:-26px; width:56px; height:56px; margin-left:-28px; }
.res-crown canvas{ width:56px; height:56px; display:block; }
.res-stars{ display:flex; justify-content:center; gap:9px; margin:8px 0 14px }
.res-stars s{ width:30px; height:30px; display:block; background:var(--gold); opacity:.16;
  clip-path:polygon(50% 0,63% 36%,100% 38%,71% 60%,82% 100%,50% 76%,18% 100%,29% 60%,0 38%,37% 36%); }
.result-card h3{ margin:0; font-size:19px; letter-spacing:.18em }
.res-rows{ display:flex; flex-direction:column; gap:6px; margin-bottom:8px }
.res-rows div{ display:flex; justify-content:space-between; font-size:12.5px; color:var(--ink-dim);
  padding:6px 9px; border-radius:9px; background:rgba(120,190,230,.055) }
.res-rows b{ font-family:var(--mono); color:var(--ink) }
.res-new{ font-size:12px; color:var(--gold); letter-spacing:.14em; min-height:16px }

.guide-box{
  position:relative; width:min(360px,88vw); border:1px solid var(--line); border-radius:18px;
  background:linear-gradient(180deg, rgba(12,24,42,.95), rgba(6,12,22,.96));
  padding:16px 17px; text-align:center;
}
.guide-box h3{ margin:11px 0 6px; font-size:15px; letter-spacing:.06em }
.guide-box p{ margin:0 0 13px; font-size:12px; color:var(--ink-dim); line-height:1.7 }
.gd-svg svg{ width:100%; height:70px }
.gd-arc{ fill:none; stroke:rgba(88,232,255,.4); stroke-width:1.3; stroke-dasharray:5 6 }
.gd-dot{ fill:var(--cy) }
.guide-row{ display:flex; gap:9px }

.ov-toast{
  position:absolute; left:50%; bottom:calc(var(--hud-bot) + 14px); transform:translateX(-50%);
  display:flex; align-items:center; gap:8px; padding:9px 15px; border-radius:999px;
  background:rgba(10,22,38,.9); border:1px solid rgba(88,232,255,.4);
  font-size:12.5px; color:var(--ink); letter-spacing:.06em; opacity:0;
  box-shadow:0 8px 26px rgba(0,0,0,.5); pointer-events:none; white-space:nowrap;
}
.toast-ico{ color:var(--cy) }

/* ============ 骨架屏（冷启动，首帧之前可见） ============ */
#boot{
  position:absolute; inset:0; z-index:9; display:flex; align-items:center; justify-content:center;
  background:radial-gradient(120% 90% at 50% 42%, #0a1a2e 0%, #050b16 55%, #03060c 100%);
  opacity:1;
}
.boot-inner{ width:min(300px,74vw); text-align:center }
.boot-mirror{ position:relative; height:74px; margin-bottom:16px }
.boot-mirror i{
  position:absolute; top:0; width:44px; height:74px; border-radius:22px;
  border:1px solid rgba(88,232,255,.45); background:linear-gradient(180deg, rgba(88,232,255,.16), transparent);
}
.boot-mirror i:first-child{ left:calc(50% - 52px) }
.boot-mirror i:last-child{ right:calc(50% - 52px); border-color:rgba(169,123,255,.45) }
.boot-title{ font-size:19px; letter-spacing:.52em; color:var(--ink-dim); margin-bottom:16px }
.boot-bar{ height:3px; border-radius:2px; background:rgba(120,190,230,.14); overflow:hidden }
.boot-bar i{ display:block; height:100%; width:0%; background:linear-gradient(90deg,var(--cy-d),var(--cy)); }
.boot-step{ margin-top:11px; font-size:10.5px; color:var(--ink-mute); letter-spacing:.2em; min-height:14px }

/* 横屏：菜单改为左右布局，游戏面板改并排（面板几何由 js 计算，这里只给 HUD 留白） */
@media (orientation:landscape) and (min-width:720px){
  :root{ --hud-top:74px; --hud-bot:74px; }
  #gbar{ height:46px }
  .hud-top{ top:46px; height:calc(var(--hud-top) - 46px) }
  .menu-wrap{ flex-direction:row; align-items:flex-end; gap:22px; padding:70px 30px 26px; justify-content:space-between }
  .menu-left{ flex:0 0 min(46%,420px); gap:11px }
  .title{ font-size:52px }
  .menu-scene-note{ left:32px; top:58px }
  .menu-egg-hint{ right:32px; top:58px }
  .menu-records{ left:30px; right:auto; width:min(420px,44%); bottom:26px }
  .howto-wrap{ padding:0 26px }
  .howto-chapters .howto-chapter{ display:grid; grid-template-columns:1fr 1fr; gap:10px; align-content:start }
  .hud-bottom{ flex-direction:row; align-items:center; padding:0 18px 16px }
  .timer-wrap{ flex:1 }
  .hud-tools{ flex:0 0 auto }
  .tool-btn{ flex:0 0 auto; padding:8px 14px }
}

/* ============ 广告位（激励视频）入口 ============
   三条硬规矩在这里体现：
     · 关掉广告开关 → 入口整个不渲染（js 不写 display，元素也不显示），不是置灰；
     · demo 态（未配置 / 不在 Telegram 内）→ 红字明示「并非真实广告」；
     · 播放中/冷却中 → 用进度条与倒计时做连续表达，而不是只有一句静态文字。 */
.tool-btn{ position:relative; overflow:hidden }
.tool-btn.is-ad{ border-color:rgba(255,212,121,.55); color:var(--gold) }
.tool-btn.is-ad .tb-ico{ color:var(--gold) }
.tool-btn.is-demo{ border-color:rgba(255,110,130,.6); color:#ffb3c0 }
.tool-btn.is-demo .tb-ico{ color:#ff8fa3 }
.tool-btn.is-demo .tb-txt{ color:#ffb3c0 }
.tool-btn[disabled]{ opacity:.35 }

.ad-prog{
  position:absolute; left:0; bottom:0; height:2px; width:0%;
  background:linear-gradient(90deg,var(--gold),#fff2cc);
  box-shadow:0 0 8px rgba(255,212,121,.7);
}

/* 主菜单里的广告入口：一整条，带主副文案 */
.mp-ad{
  display:none; width:100%; margin-top:9px; text-align:left; position:relative; overflow:hidden;
  appearance:none; border:1px solid rgba(255,212,121,.45); border-radius:11px;
  background:linear-gradient(135deg, rgba(60,44,16,.55), rgba(20,32,52,.6));
  padding:8px 11px 9px; cursor:pointer;
}
.mp-ad.on{ display:block }
.mp-ad.is-demo{ border-color:rgba(255,110,130,.6); background:linear-gradient(135deg, rgba(64,20,34,.5), rgba(20,32,52,.6)) }
.mp-ad-main{ display:block; font-size:12.5px; color:var(--gold); letter-spacing:.04em }
.mp-ad.is-demo .mp-ad-main{ color:#ffb3c0 }
.mp-ad-sub{ display:block; font-size:10px; color:var(--ink-mute); margin-top:2px; letter-spacing:.06em }
.mp-ad.is-demo .mp-ad-sub{ color:#ff8fa3 }
.mp-ad .ad-prog{ height:2px }

/* 暂停面板里的加时按钮 */
.btn.ad{
  display:none; width:100%; position:relative; overflow:hidden; text-align:center;
  border-color:rgba(255,212,121,.5);
  background:linear-gradient(135deg, rgba(60,44,16,.7), rgba(30,26,60,.75));
}
.btn.ad.on{ display:block }
.btn.ad.is-demo{ border-color:rgba(255,110,130,.6) }
.btn.ad.is-demo #ps-ad-label{ color:#ffb3c0 }
.btn.ad .ad-sub{ display:block; font-size:10.5px; color:var(--ink-mute); margin-top:3px; letter-spacing:.06em }
.btn.ad.is-demo .ad-sub{ color:#ff8fa3 }

/* 自检面板 */
.panel.wide{ width:min(520px,92vw) }
.ad-state{
  font-size:13px; letter-spacing:.1em; padding:9px 12px; border-radius:11px;
  border:1px solid var(--line); background:rgba(120,190,230,.06);
}
.ad-state b{ font-size:15px; letter-spacing:.14em }
.ad-state.real{ border-color:rgba(142,247,197,.5); background:rgba(40,90,70,.22) }
.ad-state.real b{ color:#8ef7c5 }
.ad-state.hold{ border-color:rgba(255,212,121,.5); background:rgba(90,74,20,.22) }
.ad-state.hold b{ color:var(--gold) }
.ad-state.demo{ border-color:rgba(255,110,130,.55); background:rgba(90,26,40,.24) }
.ad-state.demo b{ color:#ffb3c0 }
.ad-rows{ display:flex; flex-direction:column; gap:4px }
.ad-rows div{ display:flex; justify-content:space-between; gap:10px; font-size:11.5px;
  padding:5px 8px; border-radius:8px; background:rgba(120,190,230,.05) }
.ad-rows span:first-child{ color:var(--ink-mute); letter-spacing:.08em }
.ad-rows b{ font-family:var(--mono); font-size:11.5px }
.ad-rows b.ok{ color:#8ef7c5 }
.ad-rows b.no{ color:#ff9db3 }
.ad-caps{ display:flex; flex-direction:column; gap:5px; margin-top:2px }
.ad-cap{ border:1px solid var(--line); border-radius:10px; padding:7px 9px; background:rgba(8,16,28,.5) }
.ad-cap .cap-h{ display:flex; justify-content:space-between; font-size:12px; margin-bottom:3px }
.ad-cap .cap-h b{ font-family:var(--mono) }
.ad-cap .cap-m{ font-size:10.5px; color:var(--ink-mute); line-height:1.6 }
.ad-loghead{ display:flex; justify-content:space-between; font-size:11px; color:var(--ink-mute);
  letter-spacing:.1em; margin-top:4px }
.ad-log{
  margin:0; max-height:150px; overflow:auto; font-family:var(--mono); font-size:10px; line-height:1.75;
  color:var(--ink-dim); background:rgba(6,12,22,.75); border:1px solid var(--line);
  border-radius:9px; padding:8px 9px; white-space:pre-wrap; word-break:break-all;
}