:root {
  --bg:#0e0d0b; --fg:#e8e3d6; --subtle:#7a7465;
  --border:#26241d; --accent:#d9cfb2;
  --warn:#e8a06f; --warn-border:#8f5a3d; --think:#8fb7ff; --think-soft:#516687;
}
html.light {
  --bg:#f8f6f0; --fg:#1a1812; --subtle:#7a7465;
  --border:#dcd8cb; --accent:#1a1812;
  --warn:#b46a36; --warn-border:#d8b890; --think:#315fba; --think-soft:#6e7f9c;
}
* { box-sizing:border-box; margin:0; padding:0; }
html, body { height:100%; }
html { overflow:hidden; }
body {
  background:var(--bg); color:var(--fg);
  font-family:'Noto Serif SC', serif;
  transition:background .5s, color .5s;
  overflow:hidden;
}
/* 用 svh 代替 dvh：dvh 会随 iOS 键盘弹起而收缩，令 .hero 里的居中输入框瞬间上移，
   系统粘贴菜单因此被留在旧坐标上一帧内 dismiss。svh 是"最小可视视口"、始终稳定。 */
.frame { height:100vh; height:100svh; display:flex; position:relative; overflow:hidden; }
body.share-locked .frame { filter:blur(6px); transform:scale(1.01); opacity:.38; pointer-events:none; }

/* Tools */
.tools { position:fixed; top:12px; right:14px; z-index:100;
  display:flex; gap:8px; font-family:'JetBrains Mono', monospace; font-size:11px; }
.tools button { background:transparent; color:var(--subtle);
  border:1px solid var(--border); border-radius:4px;
  padding:4px 10px; cursor:pointer; font:inherit;
  transition:color .2s, border-color .2s; }
.tools button:hover { color:var(--fg); border-color:var(--fg); }

/* Main + topbar */
.main { flex:1; position:relative; overflow:hidden; }
.topbar { position:absolute; top:0; left:0; right:0; height:54px;
  display:flex; align-items:center; padding:0 88px 0 24px; gap:12px;
  border-bottom:1px solid var(--border);
  background:color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter:blur(10px);
  transform:translateY(-100%);
  transition:transform .55s cubic-bezier(.22,1,.36,1);
  z-index:10; }
.topbar.in { transform:none; }
.topbar .mini-url { flex:1; max-width:560px;
  font:12px/1 'JetBrains Mono', monospace; color:var(--fg);
  padding:7px 12px; border:1px solid var(--border); border-radius:20px;
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis; opacity:.75; min-width:0; }
.topbar .status-pill { margin-left:auto;
  font:11px/1 'JetBrains Mono', monospace; color:var(--subtle);
  padding:5px 10px; border-radius:14px; border:1px solid var(--border); }
.topbar .status-pill.err { color:var(--warn); border-color:var(--warn-border); }
.topbar .status-pill.err::before { content:'● '; color:var(--warn); }
.top-new-run { background:transparent; color:var(--subtle);
  border:1px solid var(--border); border-radius:14px; cursor:pointer;
  padding:5px 11px; font:11px/1 'Noto Serif SC', serif;
  transition:color .2s, border-color .2s, background .2s; }
.top-new-run:hover { color:var(--fg); border-color:var(--accent);
  background:color-mix(in srgb, var(--accent) 8%, transparent); }
.top-new-run[hidden] { display:none; }

/* Hero */
.hero { position:absolute; inset:0; display:flex; flex-direction:column;
  align-items:center; justify-content:center; gap:22px; padding:40px;
  transition:opacity .5s, transform .5s; }
.hero.out { opacity:0; transform:translateY(-12px); pointer-events:none; }
.hero .h-title {
  font-size:32px; font-weight:600; letter-spacing:2px;
  background:linear-gradient(90deg,var(--fg) 0%,var(--fg) 30%,#fff 50%,var(--fg) 70%,var(--fg) 100%);
  background-size:200% 100%; -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent; color:transparent;
}
.hero-title-wrap { text-align:center; }
.hero .input-wrap { width:560px; max-width:88%; display:flex; gap:10px; }
/* font-size ≥16px：iOS Safari / iOS Chrome（同 WebKit）在点击 <16px 的输入框时会 auto-zoom，
   放大动画的 layout shift 会把原生粘贴菜单立即 dismiss — YouTube 链接就贴不进去。 */
.hero input { flex:1; background:transparent; color:var(--fg);
  border:1px solid var(--border); border-radius:8px; padding:14px 16px;
  font:16px/1.4 'JetBrains Mono', monospace; transition:border-color .2s; min-width:0; }
.hero input:focus { outline:none; border-color:var(--fg); }
.hero .go { background:var(--accent); color:var(--bg); border:none; cursor:pointer;
  padding:0 24px; border-radius:8px;
  font:600 14px 'Noto Serif SC', serif; letter-spacing:2px;
  transition:opacity .2s, transform .2s; }
.hero .go:hover { opacity:.88; }
.hero .go:active { transform:scale(.97); }
.hero .go:disabled { opacity:.4; cursor:not-allowed; }
.hero .hint-err { color:var(--warn); font-family:'JetBrains Mono', monospace;
  font-size:12px; min-height:16px; margin-top:-10px; }
@keyframes heroIn { from { opacity:0; transform:translateY(10px); filter:blur(6px); } to { opacity:1; transform:none; filter:none; } }
@keyframes h-shimmer { 0% { background-position:150% 0; } 100% { background-position:-50% 0; } }
@keyframes h-glow {
  0%,100% { filter:drop-shadow(0 0  0px transparent); }
  50%     { filter:drop-shadow(0 0 12px color-mix(in srgb,var(--accent) 70%,white)); }
}
/* h-glow delayed 1.2s so it starts after heroIn (filter:blur) finishes — avoids filter conflict */
.hero .h-title   { animation:heroIn 1.2s cubic-bezier(.22,1,.36,1) both, h-shimmer 2s linear infinite, h-glow 2s 1.2s ease-in-out infinite; }
/* Light mode: use --subtle peak (not #fff which would vanish on light bg); no glow */
html.light .hero .h-title { background:linear-gradient(90deg,var(--fg) 0%,var(--fg) 30%,var(--subtle) 50%,var(--fg) 70%,var(--fg) 100%); background-size:200% 100%; -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; color:transparent; animation:heroIn 1.2s cubic-bezier(.22,1,.36,1) both, h-shimmer 2s linear infinite; }
.hero .input-wrap{ animation:heroIn 1.2s cubic-bezier(.22,1,.36,1) .3s   both; }

/* Sharecode gate */
.share-gate { position:fixed; inset:0; z-index:120; display:flex; align-items:center; justify-content:center;
  padding:28px; background:color-mix(in srgb, var(--bg) 74%, transparent);
  backdrop-filter:blur(14px); }
.share-gate[hidden] { display:none; }
.share-panel { width:min(430px,100%); display:flex; flex-direction:column; align-items:center;
  gap:18px; text-align:center; }
.share-logo { width:58px; height:58px; filter:drop-shadow(0 0 20px color-mix(in srgb, var(--accent) 16%, transparent)); }
.share-copy { display:flex; flex-direction:column; gap:5px; }
.share-kicker { font:10px/1 'JetBrains Mono', monospace; letter-spacing:2px; text-transform:uppercase;
  color:var(--subtle); }
.share-title { font-size:24px; font-weight:600; letter-spacing:1.5px; color:var(--fg); }
.share-input-wrap { width:100%; display:flex; gap:10px; }
/* font-size ≥16px：同 .hero input，iOS WebKit 点击 <16px 会 auto-zoom 吞掉粘贴菜单。 */
.share-input-wrap input { flex:1; min-width:0; background:transparent; color:var(--fg);
  border:1px solid var(--border); border-radius:8px; padding:14px 16px;
  font:16px/1.4 'JetBrains Mono', monospace; transition:border-color .2s; }
.share-input-wrap input:focus { outline:none; border-color:var(--fg); }
.share-input-wrap button { background:var(--accent); color:var(--bg); border:none; cursor:pointer;
  padding:0 24px; border-radius:8px; font:600 14px 'Noto Serif SC', serif; letter-spacing:2px;
  transition:opacity .2s, transform .2s; }
.share-input-wrap button:hover { opacity:.88; }
.share-input-wrap button:active { transform:scale(.97); }
.share-error { min-height:18px; color:var(--warn); font:12px/1.5 'JetBrains Mono', monospace; }

/* Sparkle logo (inline SVG inside .sparkle elements) */
.sparkle { display:inline-block; }
.sparkle .bar-h { fill:var(--accent); }
.sparkle .small { fill:var(--accent); opacity:.5; }
.sparkle .spin { animation:spin 12s linear infinite; transform-origin:center; transform-box:view-box; }
.sparkle .breath { animation:breath 2.2s ease-in-out infinite; transform-origin:center; transform-box:view-box; }
.sparkle.hero-logo { width:72px; height:72px; }
.sparkle.stage-logo { width:80px; height:80px; }
.sparkle.brand-sm { width:22px; height:22px; }
@keyframes spin { to { transform:rotate(360deg); } }
@keyframes breath { 0%,100% { opacity:.85; transform:scale(.95);} 50%{opacity:1; transform:scale(1.05);} }
/* Stage-logo AI-thinking animation */
.sparkle .ai-core {
  transform-origin:center; transform-box:view-box;
  animation:ai-breath 2.4s ease-in-out infinite;
}
@keyframes ai-breath {
  0%,100% { transform:scale(.92); opacity:.7; }
  50%     { transform:scale(1.08); opacity:1;  }
}
.sparkle .ai-orbit {
  transform-origin:center; transform-box:view-box;
  animation:ai-rotate 3.2s linear infinite;
}
@keyframes ai-rotate { to { transform:rotate(360deg); } }
.sparkle .ai-orbit .dot {
  fill:var(--accent);
  animation:ai-dot 1.6s ease-in-out infinite;
}
.sparkle .ai-orbit .dot:nth-child(1) { animation-delay:0s;     }
.sparkle .ai-orbit .dot:nth-child(2) { animation-delay:-.53s;  }
.sparkle .ai-orbit .dot:nth-child(3) { animation-delay:-1.06s; }
@keyframes ai-dot {
  0%,100% { opacity:.3; r:2;   }
  50%     { opacity:1;  r:3;   }
}

/* Stage */
.stage { position:absolute; inset:54px 0 0 0; display:flex;
  align-items:center; justify-content:center; padding:40px; overflow-y:auto; }
.view { transition:opacity .5s; }
.view.out { opacity:0; pointer-events:none; }

.prep-col { width:min(520px,90vw); display:flex; flex-direction:column; align-items:center;
  gap:18px; text-align:center; transform:translateY(-3vh); }
.prep-copy { display:flex; flex-direction:column; align-items:center; gap:6px; }
.prep-title { font-size:21px; line-height:1.35; font-weight:600; letter-spacing:1.8px; text-align:center; }
.prep-meta { font-family:'JetBrains Mono', monospace; color:var(--subtle);
  font-size:12px; line-height:1.5; text-align:center; min-height:18px; }
.prep-status { width:100%; display:flex; flex-direction:column; align-items:center;
  gap:12px; margin-top:2px; }
/* Gemini 等待文案：交叉淡出 + 上下位移 + blur + letter-spacing 收束，
   让 tip 更替像"新的念头顶上来"，而不是原地 opacity 抽帧。 */
.gemini-tip { position:relative; width:100%; min-height:48px;
  display:grid; place-items:center;
  font-size:13px; line-height:1.7;
  color:color-mix(in srgb, var(--fg) 64%, var(--subtle));
  font-family:'Noto Serif SC', serif; letter-spacing:.5px; text-align:center; }
.gemini-tip[hidden] { display:none; }
.gemini-tip.warm { color:var(--warn); }
.gemini-tip .tip-line { position:absolute; inset:0;
  display:grid; place-items:center; padding:0 8px;
  will-change:transform, opacity, filter;
  animation:tipIn .6s cubic-bezier(.22,1,.36,1) both; }
.gemini-tip .tip-line.exit { animation:tipOut .45s cubic-bezier(.4,0,.6,1) forwards; }
@keyframes tipIn {
  0%   { opacity:0; transform:translateY(10px); filter:blur(4px); letter-spacing:2px; }
  100% { opacity:1; transform:translateY(0);    filter:blur(0);   letter-spacing:.5px; }
}
@keyframes tipOut {
  0%   { opacity:1; transform:translateY(0);    filter:blur(0);   }
  100% { opacity:0; transform:translateY(-8px); filter:blur(4px); }
}
/* 动态省略号：三个点按序呼吸，替代静态 "…"，传达"还在思考"的节奏感。 */
.tip-dots { display:inline-block; margin-left:3px; font-family:inherit; letter-spacing:1px; }
.tip-dots i { display:inline-block; font-style:normal; opacity:.18;
  animation:tip-dot 1.5s cubic-bezier(.4,0,.6,1) infinite; }
.tip-dots i:nth-child(1) { animation-delay:0s;    }
.tip-dots i:nth-child(2) { animation-delay:.18s;  }
.tip-dots i:nth-child(3) { animation-delay:.36s;  }
@keyframes tip-dot {
  0%, 70%, 100% { opacity:.18; transform:translateY(0);    }
  35%           { opacity:1;   transform:translateY(-2px); }
}
@media (prefers-reduced-motion: reduce) {
  .gemini-tip .tip-line, .gemini-tip .tip-line.exit, .tip-dots i { animation:none !important; opacity:1; transform:none; filter:none; }
}
.gemini-timer { width:100%; font-size:11px; color:var(--subtle);
  font-family:'JetBrains Mono', monospace; opacity:.55; text-align:center; }
.gemini-timer[hidden] { display:none; }
.fallback-log { width:min(440px,100%); display:flex; flex-direction:column;
  align-items:stretch; gap:8px; margin:0; font-family:'JetBrains Mono', monospace; }
.fallback-log[hidden] { display:none; }
.fallback-row { position:relative; display:grid; grid-template-columns:50px minmax(0,1fr);
  gap:12px; padding:8px 0 8px 18px; border-left:1px solid color-mix(in srgb, var(--think) 34%, transparent);
  border-radius:0 6px 6px 0; text-align:left;
  background:linear-gradient(90deg,color-mix(in srgb,var(--think) 8%,transparent),transparent 76%);
  font-size:11px; line-height:1.65; color:color-mix(in srgb, var(--fg) 76%, var(--think));
  animation:fallback-in .55s cubic-bezier(.22,1,.36,1) both; }
.fallback-row::before { content:''; position:absolute; left:-4px; top:15px;
  width:7px; height:7px; border-radius:50%; background:var(--think);
  box-shadow:0 0 0 0 color-mix(in srgb, var(--think) 48%, transparent),
    0 0 18px color-mix(in srgb, var(--think) 44%, transparent);
  animation:fallback-pulse 1.8s ease-in-out infinite; }
.fallback-row .time { color:var(--think); font-weight:700; opacity:.95; }
.fallback-row .event { color:color-mix(in srgb, var(--fg) 70%, var(--think)); overflow-wrap:anywhere; }
.fallback-row.fallback-long { border-left-color:color-mix(in srgb, var(--warn) 42%, transparent);
  background:linear-gradient(90deg,color-mix(in srgb,var(--warn) 9%,transparent),transparent 76%); }
.fallback-row.fallback-long::before { background:var(--warn);
  box-shadow:0 0 0 0 color-mix(in srgb, var(--warn) 48%, transparent),
    0 0 18px color-mix(in srgb, var(--warn) 44%, transparent); }
.fallback-row.fallback-long .time { color:var(--warn); }
@keyframes fallback-in { from { opacity:0; transform:translateY(6px); filter:blur(3px); } to { opacity:1; transform:none; filter:none; } }
@keyframes fallback-pulse {
  0%,100% { opacity:.42; transform:scale(.88); }
  50% { opacity:1; transform:scale(1.18); }
}
/* Reveal */
.reveal { position:absolute; inset:54px 0 0 0; display:flex;
  flex-direction:column; align-items:center; justify-content:center;
  pointer-events:none; overflow:hidden; }
.sparkle-burst { position:absolute; width:180px; height:180px; top:50%; left:50%;
  transform:translate(-50%,-50%); }
.sparkle-burst .ring { position:absolute; inset:0; border-radius:50%;
  border:1px solid var(--accent); opacity:0; transform:scale(.4); }
.reveal.play .sparkle-burst .ring { animation:ring 1.6s cubic-bezier(.22,1,.36,1) forwards; }
.reveal.play .sparkle-burst .ring.r2 { animation-delay:.15s; }
.reveal.play .sparkle-burst .ring.r3 { animation-delay:.3s; }
@keyframes ring {
  0% { opacity:1; transform:scale(.15); border-width:2px; }
  70% { opacity:.35; }
  100% { opacity:0; transform:scale(2.2); border-width:.5px; }
}
.ink-line { position:absolute; height:1px; background:var(--fg);
  left:50%; top:50%; transform:translate(-50%, 0);
  width:0; transition:width 1.1s cubic-bezier(.22,1,.36,1); }
.ink-line.top { margin-top:-48px; }
.ink-line.bot { margin-top:38px; }
.reveal.play .ink-line.top { width:480px; max-width:80%; transition-delay:.8s; }
.reveal.play .ink-line.bot { width:240px; max-width:50%; transition-delay:1.4s; }
.reveal .h1 { position:absolute; top:50%; left:50%;
  transform:translate(-50%,-50%);
  font-size:32px; font-weight:700; letter-spacing:2px; text-align:center;
  opacity:0; filter:blur(10px); padding:0 24px; width:100%; max-width:760px; }
.reveal.play .h1 { animation:h1In 1.3s cubic-bezier(.22,1,.36,1) 1.1s forwards; }
@keyframes h1In { to { opacity:1; filter:blur(0); } }
.reveal .sub { position:absolute; top:50%; left:50%;
  transform:translate(-50%, 18px);
  font-family:'JetBrains Mono', monospace; color:var(--subtle); font-size:12px; letter-spacing:1.5px;
  opacity:0; }
.reveal.play .sub { animation:subIn 1s cubic-bezier(.22,1,.36,1) 1.8s forwards; }
@keyframes subIn { to { opacity:1; } }

/* Article */
.article { position:absolute; inset:54px 0 0 0; overflow-y:auto; overflow-x:hidden;
  padding:56px 72px 80px;
  opacity:0; transition:opacity .8s; }
.article.show { opacity:1; }
.article-inner { max-width:720px; margin:0 auto; }
.article h1 { font-size:30px; font-weight:700; letter-spacing:1px; margin-bottom:6px; padding-bottom:14px; overflow-wrap:anywhere; }
.article .meta { font-family:'JetBrains Mono', monospace; color:var(--subtle);
  font-size:12px; margin-bottom:36px; padding-bottom:20px;
  border-bottom:1px solid var(--border); overflow-wrap:anywhere; }
.article h2 { font-size:22px; font-weight:700; margin:38px 0 10px; letter-spacing:.5px; }
.article h3 { font-size:12px; font-weight:500; color:var(--subtle);
  margin:18px 0 8px; letter-spacing:2px;
  font-family:'JetBrains Mono', monospace; text-transform:uppercase; }
.article p { font-size:16px; line-height:1.9; margin:0 0 14px; overflow-wrap:anywhere; }
.speaker-turn { display:grid; grid-template-columns:76px minmax(0,1fr);
  column-gap:18px; margin:10px 0 18px; }
.turn-speaker { padding-top:7px; color:var(--accent);
  font:600 12px/1.4 'JetBrains Mono', monospace; letter-spacing:.4px; overflow-wrap:anywhere; }
.turn-body { min-width:0; padding-left:18px; border-left:1px solid var(--border); }
.turn-body p { margin:0 0 10px; }
.turn-body p:last-child { margin-bottom:0; }
.turn-question .turn-speaker { color:var(--warn); }
.turn-question .turn-body { border-left-color:var(--warn-border); }
.body-para { margin:0 0 14px; }
.fade-node { opacity:0; filter:blur(3px); transform:translateY(6px);
  animation:nodein 1.1s cubic-bezier(.22,1,.36,1) forwards; }
@keyframes nodein { to { opacity:1; filter:blur(0); transform:none; } }
.caret { display:inline-block; width:3px; height:1em;
  background:var(--accent); vertical-align:text-bottom;
  margin-left:2px; border-radius:1px;
  animation:blink 1.1s steps(2,end) infinite; }
@keyframes blink { 50% { opacity:0; } }

.article-tail { margin:34px 0 10px; padding-top:22px;
  border-top:1px solid var(--border); display:flex; align-items:flex-start; gap:16px;
  color:var(--subtle); }
.article-tail[hidden] { display:none; }
.tail-thinking { position:relative; width:36px; height:36px; flex-shrink:0;
  color:var(--accent);
  filter:drop-shadow(0 0 14px color-mix(in srgb, var(--accent) 18%, transparent)); }
.tail-thinking::before { content:''; position:absolute; inset:8px; border-radius:50%;
  background:radial-gradient(circle, color-mix(in srgb,var(--accent) 32%,transparent) 0 22%, transparent 62%);
  opacity:.7; animation:tail-core 2.4s ease-in-out infinite; }
.tail-thinking::after { content:''; position:absolute; left:-2px; right:-2px; top:50%;
  height:1px; background:linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity:.42; transform-origin:center; animation:tail-ink 2.8s ease-in-out infinite; }
.tail-thinking svg { position:relative; display:block; width:100%; height:100%; overflow:visible; }
.tail-spin { transform-origin:center; transform-box:view-box; animation:tail-orbit 8s linear infinite; }
.tail-star { fill:var(--accent); opacity:.9; transform-origin:center; transform-box:view-box;
  animation:tail-star-breath 2.4s ease-in-out infinite; }
.tail-dot { fill:var(--accent); opacity:.42; animation:tail-dot 1.8s ease-in-out infinite; }
.tail-dot.d2 { animation-delay:-.6s; }
.tail-dot.d3 { animation-delay:-1.2s; }
.tail-copy { flex:1; min-width:0; padding-top:1px; }
.tail-title { font-size:13px; line-height:1.5; color:color-mix(in srgb, var(--fg) 88%, var(--accent));
  letter-spacing:.8px; overflow-wrap:anywhere; }
.tail-meta { margin-top:4px; font:11px/1.7 'JetBrains Mono', monospace;
  color:color-mix(in srgb, var(--accent) 58%, var(--subtle)); overflow-wrap:anywhere; }
.tail-track { margin-top:10px; width:100%; height:2px; overflow:hidden;
  background:color-mix(in srgb, var(--fg) 7%, transparent); }
.tail-track span { display:block; width:0; height:100%;
  background:linear-gradient(90deg, transparent, var(--accent), color-mix(in srgb,var(--accent) 55%,var(--fg)));
  transition:width .7s cubic-bezier(.22,1,.36,1);
  box-shadow:0 0 14px color-mix(in srgb,var(--accent) 28%,transparent); }
.article-tail.is-thinking .tail-track span {
  background-size:180% 100%;
  animation:tail-flow 1.6s linear infinite;
}
.article-tail.is-done .tail-thinking { border-color:color-mix(in srgb, var(--accent) 46%, transparent); }
.article-tail.is-done .tail-thinking::after,
.article-tail.is-done .tail-dot { animation:none; opacity:.45; }
.article-tail.is-done .tail-title { color:var(--accent); }
.article-tail.is-done .tail-track span { background:var(--accent); box-shadow:none; }
.article-tail.is-interrupted .tail-thinking { border-color:color-mix(in srgb, var(--warn) 46%, transparent); }
.article-tail.is-interrupted .tail-thinking::after,
.article-tail.is-interrupted .tail-star,
.article-tail.is-interrupted .tail-dot { animation:none; opacity:.75; fill:var(--warn); }
.article-tail.is-interrupted .tail-title { color:var(--warn); }
.article-tail.is-interrupted .tail-track span { background:var(--warn); box-shadow:none; }
@keyframes tail-core {
  0%,100% { transform:scale(.82); opacity:.42; }
  50% { transform:scale(1.12); opacity:.92; }
}
@keyframes tail-orbit { to { transform:rotate(360deg); } }
@keyframes tail-dot {
  0%,100% { transform:scale(.72); opacity:.35; }
  50% { transform:scale(1.18); opacity:1; }
}
@keyframes tail-star-breath {
  0%,100% { transform:scale(.92); opacity:.68; }
  50% { transform:scale(1.08); opacity:1; }
}
@keyframes tail-ink {
  0%,100% { transform:scaleX(.18) rotate(-18deg); opacity:.18; }
  50% { transform:scaleX(1) rotate(-18deg); opacity:.54; }
}
@keyframes tail-flow {
  0% { background-position:120% 0; }
  100% { background-position:-80% 0; }
}

/* Interrupt block */
.interrupt { margin:26px 0 10px; padding-top:18px;
  border-top:1px solid var(--warn-border); position:relative; }
.interrupt::before { content:''; position:absolute; left:0; top:-1px;
  width:20%; height:1px; background:var(--warn); }
.interrupt .label-err { font-family:'JetBrains Mono', monospace;
  font-size:10px; color:var(--warn); letter-spacing:1px; margin-bottom:4px; }
.interrupt .msg { font-family:'Noto Serif SC', serif; font-size:13px;
  color:var(--subtle); margin-bottom:10px; }
.interrupt .actions { display:flex; gap:10px; }
.interrupt .btn { font-size:12px; padding:6px 14px; border-radius:4px; cursor:pointer; }
.interrupt .btn-primary { background:var(--accent); color:var(--bg); border:none; }
.interrupt .btn-ghost { background:transparent; color:var(--subtle);
  border:1px solid var(--border); }
/* Stall indicator */
.stall-indicator { display:flex; align-items:center; gap:8px;
  margin-top:8px; padding:6px 0 4px;
  font-size:12px; font-family:'JetBrains Mono', monospace;
  color:var(--subtle); }
.stall-indicator[hidden] { display:none; }
.stall-indicator.stall-warm { color:var(--warn); }
.stall-indicator.stall-critical {
  flex-direction:column; align-items:flex-start; gap:6px; }
.stall-row { display:flex; align-items:center; gap:8px; }
.stall-pulse { flex-shrink:0; width:6px; height:6px; border-radius:50%;
  background:currentColor; animation:stall-blink 1.4s ease-in-out infinite; }
@keyframes stall-blink { 0%,100% { opacity:.25; } 50% { opacity:1; } }
.stall-actions { display:flex; gap:8px; }
.stall-actions .btn { font-size:11px; padding:5px 12px;
  border-radius:4px; cursor:pointer; }
.stall-actions .btn-primary { background:var(--accent); color:var(--bg); border:none; }
.stall-actions .btn-ghost { background:transparent; color:var(--subtle);
  border:1px solid var(--border); }
.interrupt-req {
  font-family:'JetBrains Mono', monospace;
  font-size:10px;
  color:var(--subtle);
  margin-top:8px;
  letter-spacing:.5px;
  user-select:all;
}
.interrupt-req.copied { color:var(--accent); }

@media (max-width: 720px) {
  .tools { top:10px; right:10px; }
  .tools button { width:32px; height:32px; padding:0; border-radius:50%; }

  .topbar {
    height:58px;
    padding:0 54px 0 12px;
    gap:8px;
  }
  .sparkle.brand-sm { width:20px; height:20px; flex:0 0 auto; }
  .topbar .mini-url {
    max-width:none;
    padding:7px 10px;
    font-size:10px;
  }
  .topbar .status-pill {
    margin-left:0;
    padding:5px 8px;
    font-size:10px;
    max-width:78px;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
  }
  .top-new-run {
    padding:5px 8px;
    font-size:11px;
    white-space:nowrap;
  }

  .hero {
    justify-content:center;
    padding:72px 20px 48px;
    gap:18px;
  }
  .sparkle.hero-logo { width:62px; height:62px; }
  .hero .h-title { font-size:30px; letter-spacing:1.5px; }
  .hero .input-wrap {
    width:100%;
    max-width:430px;
    flex-direction:column;
    gap:10px;
  }
  .hero input {
    width:100%;
    min-height:50px;
    padding:13px 14px;
    /* 16px 是 iOS WebKit 抑制点击 auto-zoom 的阈值，别再调低。 */
    font-size:16px;
  }
  .hero .go {
    width:100%;
    min-height:48px;
    padding:0 18px;
  }
  .hero .hint-err {
    width:100%;
    max-width:430px;
    margin-top:-6px;
    text-align:left;
    line-height:1.5;
  }

  .share-gate { padding:22px; }
  .share-panel { max-width:430px; gap:16px; }
  .share-title { font-size:22px; }
  .share-input-wrap {
    flex-direction:column;
    gap:10px;
  }
  .share-input-wrap input,
  .share-input-wrap button {
    width:100%;
    min-height:48px;
  }

  .stage {
    inset:58px 0 0;
    padding:28px 18px;
    align-items:center;
  }
  .prep-col {
    width:100%;
    max-width:430px;
    gap:16px;
    transform:none;
    padding-top:0;
  }
  .sparkle.stage-logo { width:70px; height:70px; }
  .prep-title { font-size:20px; line-height:1.4; }
  .prep-meta { font-size:11px; line-height:1.6; }
  .prep-status { gap:12px; }
  .gemini-tip {
    max-width:360px;
    margin:0 auto;
    font-size:13px;
    line-height:1.75;
  }
  .fallback-log { width:100%; max-width:360px; }
  .fallback-row {
    grid-template-columns:44px minmax(0,1fr);
    gap:10px;
    padding:8px 0 8px 14px;
    font-size:10px;
    line-height:1.7;
  }
  .fallback-row::before { top:14px; }

  .reveal { inset:58px 0 0; }
  .sparkle-burst { width:150px; height:150px; }
  .reveal .h1 {
    font-size:26px;
    line-height:1.35;
    letter-spacing:1.2px;
    padding:0 20px;
  }
  .reveal .sub {
    width:100%;
    padding:0 20px;
    text-align:center;
    line-height:1.5;
  }
  .reveal.play .ink-line.top { width:82%; }
  .reveal.play .ink-line.bot { width:46%; }

  .article {
    inset:58px 0 0;
    padding:36px clamp(24px,6vw,34px) 68px;
  }
  .article-inner { max-width:42rem; }
  .article h1 {
    font-size:25px;
    line-height:1.35;
    letter-spacing:.5px;
    margin-bottom:8px;
    padding-bottom:10px;
  }
  .article .meta {
    font-size:11px;
    line-height:1.8;
    margin-bottom:28px;
    padding-bottom:16px;
  }
  .article h2 {
    font-size:20px;
    line-height:1.45;
    margin:32px 0 10px;
    letter-spacing:.2px;
  }
  .article h3 {
    font-size:11px;
    line-height:1.7;
    margin:18px 0 10px;
    letter-spacing:1.2px;
  }
  .article p {
    font-size:16px;
    line-height:1.95;
    margin-bottom:13px;
  }
  .speaker-turn {
    display:block;
    margin:12px 0 20px;
  }
  .turn-speaker {
    display:inline-block;
    padding:0 0 5px;
    margin-bottom:4px;
    font-size:11px;
    line-height:1.5;
  }
  .turn-body {
    padding-left:12px;
  }

  .article-tail {
    margin:30px 0 8px;
    padding-top:20px;
    gap:12px;
  }
  .tail-thinking {
    width:32px;
    height:32px;
  }
  .tail-title {
    font-size:13px;
    line-height:1.55;
    letter-spacing:.4px;
  }
  .tail-meta {
    font-size:10px;
    line-height:1.8;
  }

  .interrupt .actions,
  .stall-actions {
    flex-wrap:wrap;
  }
}

@media (max-width: 430px) {
  .topbar {
    padding-right:50px;
    gap:6px;
  }
  .topbar .mini-url {
    flex:1 1 auto;
    min-width:72px;
    padding:7px 9px;
  }
  .topbar .status-pill {
    max-width:58px;
    padding:5px 7px;
  }
  .top-new-run {
    max-width:58px;
    overflow:hidden;
    text-overflow:ellipsis;
  }

  .hero {
    padding:64px 18px 44px;
  }
  .hero .h-title { font-size:28px; }

  .stage {
    padding:24px 18px;
  }

  .article {
    padding:32px clamp(22px,6vw,26px) 62px;
  }
  .article h1 {
    font-size:23px;
  }
  .article p {
    font-size:16px;
    line-height:1.95;
  }
  .speaker-turn { margin:14px 0 22px; }
  .turn-body {
    padding-left:12px;
  }
  .article-tail {
    gap:10px;
  }
  .tail-thinking {
    width:30px;
    height:30px;
  }
}

@media (max-width: 430px) and (max-height: 680px) {
  .hero {
    padding-top:30px;
    padding-bottom:44px;
    gap:14px;
  }
  .stage {
    align-items:center;
  }
  .prep-col {
    transform:translateY(-1vh);
    padding-top:0;
  }
}