/* cc-web 官网样式
 * 方向：「凌晨的服务器还在干活」——单一深色世界（刻意不做浅色主题）：墨蓝夜色底 + 一处琥珀色光标强调，
 * 时间与编号一律用等宽字（Martian Mono，自托管，OFL），中文用系统黑体加重、收紧字距。
 * 版式：1180 栅格；首页左文右终端，章节之间用发丝线与等宽编号分隔，而不是一排排同样的圆角卡片。
 * 约束：CSP 只允许同源样式，页面里没有任何 style 属性；动态效果只通过 CSS 变量与类名切换。 */

@font-face {
  font-family: "Martian Mono";
  src: url("/assets/fonts/martian-mono.woff2") format("woff2");
  font-weight: 100 800;
  font-stretch: 75% 112.5%;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2190-21FF, U+2212, U+2215, U+25A0-25FF;
}

:root {
  --bg: #0a0e15;
  --bg-2: #0e131d;
  --panel: #121926;
  --panel-2: #172031;
  --line: #1e2737;
  --line-2: #2b3649;
  --text: #e8ecf4;
  --text-2: #b3bccb;
  --mute: #7d889c;
  --amber: #f2a541;
  --amber-2: #ffc977;
  --amber-ink: #1b1306;
  --ok: #5ccaa9;
  --wait: #93a8ff;
  --bad: #ff7a6b;

  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans SC",
    "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Martian Mono", ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1.0625rem;
  --fs-md: 1.25rem;
  --fs-lg: 1.625rem;
  --fs-xl: clamp(1.9rem, 1.2rem + 2.4vw, 2.6rem);
  --fs-hero: clamp(2.6rem, 1.2rem + 5.6vw, 5.1rem);

  --wrap: 1180px;
  --gutter: clamp(18px, 4vw, 40px);
  --radius: 14px;
  --radius-sm: 9px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  --dawn: 0;

  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 var(--fs-base)/1.75 var(--font-sans);
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, video, svg { max-width: 100%; }
img, video { height: auto; display: block; }
a { color: var(--amber-2); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--amber); }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3 { text-wrap: balance; line-height: 1.22; margin: 0; letter-spacing: -.012em; }
p { margin: 0; }
::selection { background: color-mix(in srgb, var(--amber) 40%, transparent); color: #fff; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.mono { font-family: var(--font-mono); font-stretch: 87.5%; letter-spacing: 0; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 50; background: var(--amber); color: var(--amber-ink); padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 12px; }

/* ── 标志与页眉 ───────────────────────────────────────── */
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; }
.brand:hover { color: var(--text); }
.mark { width: 30px; height: 30px; flex: none; }
.mark-outer, .mark-inner { fill: none; stroke: currentColor; stroke-width: 4.2; stroke-linecap: round; }
.mark-inner { opacity: .6; }
.mark-cursor { fill: var(--amber); }
.brand:hover .mark-cursor { animation: blink 1.05s steps(1) infinite; }
.wordmark { font-family: var(--font-mono); font-stretch: 112.5%; font-weight: 700; font-size: 1.08rem; letter-spacing: -.02em; }
.wordmark i { font-style: normal; color: var(--amber); }

.site-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}
.bar { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 64px; flex-wrap: wrap; }
.site-nav { display: flex; gap: 2px; flex-wrap: wrap; }
.site-nav a {
  color: var(--text-2); text-decoration: none; font-size: var(--fs-sm);
  padding: 7px 12px; border-radius: 999px; transition: color .2s, background-color .2s;
}
.site-nav a:hover { color: var(--text); background: var(--panel); }
.site-nav a[aria-current="page"] { color: var(--text); background: var(--panel-2); box-shadow: inset 0 0 0 1px var(--line-2); }

/* ── 按钮 ─────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  font: 600 var(--fs-sm)/1 var(--font-sans); letter-spacing: .02em;
  padding: 13px 20px; border-radius: 999px; text-decoration: none; cursor: pointer;
  color: var(--text); background: transparent; border: 1px solid var(--line-2);
  transition: transform .25s var(--ease), background-color .2s, border-color .2s, color .2s;
}
.btn:hover { color: var(--text); border-color: var(--mute); transform: translateY(-1px); }
.btn-primary { background: var(--amber); border-color: var(--amber); color: var(--amber-ink); }
.btn-primary:hover { background: var(--amber-2); border-color: var(--amber-2); color: var(--amber-ink); }
.btn .arrow { font-family: var(--font-mono); transition: transform .25s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

/* ── 首页 · 首屏 ──────────────────────────────────────── */
.hero { position: relative; overflow: hidden; isolation: isolate; border-bottom: 1px solid var(--line); }
.hero::before {
  /* 夜色网格 */
  content: ""; position: absolute; inset: 0; z-index: -2;
  background:
    linear-gradient(var(--bg) 0, transparent 30%, transparent 70%, var(--bg) 100%),
    repeating-linear-gradient(90deg, color-mix(in srgb, var(--line) 55%, transparent) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, color-mix(in srgb, var(--line) 40%, transparent) 0 1px, transparent 1px 72px);
  mask-image: radial-gradient(ellipse 80% 70% at 70% 40%, #000 30%, transparent 75%);
}
.hero::after {
  /* 天亮：随终端记录推进到早上，地平线泛起琥珀色（--dawn 由脚本 0 → 1） */
  content: ""; position: absolute; left: -10%; right: -10%; bottom: -40%; height: 90%; z-index: -1;
  background: radial-gradient(ellipse 60% 55% at 62% 100%, rgba(242, 165, 65, .34), rgba(242, 120, 65, .12) 45%, transparent 70%);
  opacity: calc(.15 + var(--dawn) * .85);
  transform: translateY(calc((1 - var(--dawn)) * 12%));
  transition: opacity 1.2s var(--ease), transform 1.2s var(--ease);
}
.hero-grid {
  display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px);
  align-items: center; padding: clamp(56px, 8vw, 112px) 0 clamp(56px, 7vw, 96px);
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font: 500 var(--fs-xs)/1 var(--font-mono); font-stretch: 87.5%; letter-spacing: .08em; text-transform: uppercase;
  color: var(--text-2);
}
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: var(--amber); box-shadow: 0 0 12px var(--amber); }
.hero h1 {
  font-size: var(--fs-hero); font-weight: 800; letter-spacing: -.035em; line-height: 1.06;
  margin: 22px 0 24px;
}
.hero h1 .line2 { display: block; color: var(--amber-2); text-shadow: 0 0 42px rgba(242, 165, 65, .28); }
.hero .lead { color: var(--text-2); font-size: var(--fs-md); line-height: 1.75; max-width: 34em; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 34px; }
.engines { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 30px; color: var(--mute); font-size: var(--fs-sm); }
.engines span { display: inline-flex; align-items: center; gap: 8px; }
.engines span::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--line-2); }

/* 终端：一夜的运行记录（示例） */
.term {
  position: relative; border-radius: var(--radius); overflow: hidden;
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel) 92%, transparent), color-mix(in srgb, var(--bg-2) 96%, transparent));
  border: 1px solid var(--line-2);
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .7), 0 0 0 1px rgba(255, 255, 255, .02) inset;
}
.term-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 16px; border-bottom: 1px solid var(--line);
  font: 500 var(--fs-xs)/1 var(--font-mono); font-stretch: 87.5%; color: var(--mute);
}
.term-title { display: inline-flex; align-items: center; gap: 9px; }
.live { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 4px rgba(92, 202, 169, .14); animation: pulse 2.4s ease-in-out infinite; }
.term-clock { color: var(--text-2); font-variant-numeric: tabular-nums; letter-spacing: .04em; }
.term-body { list-style: none; margin: 0; padding: 14px 0 18px; font: 400 .82rem/1.55 var(--font-mono); font-stretch: 87.5%; }
.term-body li {
  display: grid; grid-template-columns: 4.6em 1.6em minmax(0, 1fr); gap: 4px;
  padding: 5px 18px; color: var(--text-2);
  transition: opacity .5s var(--ease), background-color .5s;
}
.term-body time { color: var(--mute); font-variant-numeric: tabular-nums; }
.term-body .g { text-align: center; }
.term-body .t { font-family: var(--font-sans); font-size: .86rem; letter-spacing: .01em; }
.term-body .t b { font-weight: 600; color: var(--text); }
.term-body .k { font-family: var(--font-mono); color: var(--text); font-size: .78rem; }
.g.ok { color: var(--ok); }
.g.wait { color: var(--wait); }
.g.go { color: var(--amber); }
.term.playing li { opacity: .3; }
.term.playing li.on { opacity: 1; }
.term.playing li.now { background: linear-gradient(90deg, rgba(242, 165, 65, .1), transparent 70%); }
.term-body li.last .t::after {
  content: ""; display: inline-block; width: .55em; height: 1.05em; margin-left: 6px; vertical-align: -2px;
  background: var(--amber); animation: blink 1.05s steps(1) infinite;
}
.term-foot {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  padding: 11px 18px; border-top: 1px solid var(--line);
  font: 400 var(--fs-xs)/1.4 var(--font-sans); color: var(--mute);
}
.term-foot .mono { color: var(--text-2); }

/* ── 通用章节 ─────────────────────────────────────────── */
.section { padding: clamp(64px, 9vw, 120px) 0; border-bottom: 1px solid var(--line); }
.section-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 24px 56px; align-items: end; margin-bottom: clamp(36px, 5vw, 60px); }
.kicker { font: 500 var(--fs-xs)/1 var(--font-mono); font-stretch: 87.5%; letter-spacing: .1em; text-transform: uppercase; color: var(--amber); margin-bottom: 16px; display: block; }
.section h2 { font-size: var(--fs-xl); font-weight: 800; letter-spacing: -.025em; }
.section-sub { color: var(--text-2); max-width: 36em; }

/* 能力索引：编号行 + 发丝线，两列 */
.index { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 56px; counter-reset: cap; }
.index li { counter-increment: cap; border-top: 1px solid var(--line); }
.index a {
  display: grid; grid-template-columns: 3.4em minmax(0, 1fr) auto; gap: 4px 14px; align-items: baseline;
  padding: 24px 4px 26px; color: inherit; text-decoration: none; position: relative;
}
.index a::before {
  content: counter(cap, decimal-leading-zero);
  font: 500 var(--fs-sm)/1 var(--font-mono); font-stretch: 87.5%; color: var(--mute);
  transition: color .25s;
}
.index h3 { font-size: var(--fs-md); font-weight: 700; }
.index p { grid-column: 2 / 3; color: var(--text-2); font-size: .97rem; line-height: 1.7; }
.index .go { font-family: var(--font-mono); color: var(--mute); transition: transform .3s var(--ease), color .25s; }
.index a:hover::before, .index a:hover .go { color: var(--amber); }
.index a:hover .go { transform: translateX(4px); }
.index a:hover h3 { color: var(--amber-2); }

/* 截图：浏览器外框 */
.frame {
  margin: 0; border-radius: var(--radius); overflow: hidden; background: var(--panel);
  border: 1px solid var(--line-2); box-shadow: 0 30px 70px -36px rgba(0, 0, 0, .8);
}
.frame-bar { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--line); }
.frame-bar .addr {
  flex: 1; text-align: center; font: 400 var(--fs-xs)/1 var(--font-mono); font-stretch: 87.5%; color: var(--mute);
  background: var(--bg-2); border-radius: 999px; padding: 7px 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.frame-bar .pip { width: 9px; height: 9px; border-radius: 50%; background: var(--line-2); box-shadow: 14px 0 0 var(--line-2), 28px 0 0 var(--line-2); margin-right: 28px; }
.frame img { width: 100%; }
.showcase { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr); gap: 20px; }
.showcase .side { display: grid; gap: 20px; }
.shot-cap { display: flex; gap: 12px; align-items: baseline; padding: 14px 4px 0; color: var(--text-2); font-size: var(--fs-sm); }
.shot-cap .mono { color: var(--amber); font-size: var(--fs-xs); }
.thumbs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 20px; }

/* 一天里的场景：24 小时刻度 */
.day {
  position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0;
  border-top: 1px solid var(--line-2);
}
.day::before {
  /* 刻度线：每小时一格 */
  content: ""; position: absolute; left: 0; right: 0; top: -1px; height: 9px;
  background: repeating-linear-gradient(90deg, var(--line-2) 0 1px, transparent 1px calc(100% / 24));
}
.scene { padding: 34px 26px 6px 0; position: relative; }
.scene + .scene { padding-left: 26px; border-left: 1px solid var(--line); }
.scene .at { display: block; font: 600 var(--fs-lg)/1 var(--font-mono); font-stretch: 87.5%; letter-spacing: -.02em; color: var(--text); margin-bottom: 16px; font-variant-numeric: tabular-nums; }
.scene .at small { font-size: var(--fs-xs); font-weight: 400; color: var(--mute); letter-spacing: .06em; margin-left: 6px; }
.scene h3 { font-size: 1.08rem; font-weight: 700; margin-bottom: 8px; }
.scene p { color: var(--text-2); font-size: .95rem; }
.scene.night .at { color: var(--amber-2); }

/* 结尾邀请 */
.closing { padding: clamp(72px, 10vw, 132px) 0; position: relative; overflow: hidden; isolation: isolate; }
.closing::after {
  content: ""; position: absolute; inset: auto -20% -60% -20%; height: 120%; z-index: -1;
  background: radial-gradient(ellipse 50% 50% at 50% 100%, rgba(242, 165, 65, .2), transparent 70%);
}
.closing-inner { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.closing h2 { font-size: clamp(2rem, 1rem + 3.4vw, 3.4rem); font-weight: 800; letter-spacing: -.03em; }
.closing p { color: var(--text-2); margin-top: 14px; }

/* ── 页脚 ─────────────────────────────────────────────── */
.site-footer { border-top: 1px solid var(--line); padding: 34px 0 44px; color: var(--mute); font-size: var(--fs-sm); }
.site-footer .wrap { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.site-footer .brand .mark { width: 24px; height: 24px; }
.site-footer .wordmark { font-size: .95rem; }
.foot-links { display: flex; gap: 18px; flex-wrap: wrap; }
.foot-links a { color: var(--mute); text-decoration: none; }
.foot-links a:hover { color: var(--text); }

/* ── 内页通用页头 ─────────────────────────────────────── */
.page-head { padding: clamp(48px, 7vw, 92px) 0 clamp(30px, 4vw, 48px); border-bottom: 1px solid var(--line); margin-bottom: clamp(36px, 5vw, 64px); }
.page-head h1 { font-size: clamp(2.2rem, 1.2rem + 3.6vw, 3.8rem); font-weight: 800; letter-spacing: -.03em; margin: 14px 0 18px; }
.page-head > p { color: var(--text-2); font-size: var(--fs-md); max-width: 38em; }
.toc-inline { list-style: none; margin: 30px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.toc-inline a {
  display: inline-block; text-decoration: none; color: var(--text-2); font-size: var(--fs-sm);
  padding: 6px 13px; border: 1px solid var(--line-2); border-radius: 999px; transition: color .2s, border-color .2s;
}
.toc-inline a:hover { color: var(--amber-2); border-color: var(--amber); }

/* ── 功能页 ───────────────────────────────────────────── */
main.features-main { counter-reset: feat; }
.feature {
  counter-increment: feat;
  display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.25fr); gap: clamp(28px, 4.5vw, 64px); align-items: center;
  padding: clamp(36px, 5vw, 64px) 0; border-bottom: 1px solid var(--line);
}
.feature:last-of-type { border-bottom: 0; }
.feature.flip > .feature-text { order: 2; }
.feature-text h2 { font-size: var(--fs-lg); font-weight: 800; letter-spacing: -.02em; margin-bottom: 14px; }
.feature-text h2::before {
  content: counter(feat, decimal-leading-zero); display: block; margin-bottom: 14px;
  font: 500 var(--fs-sm)/1 var(--font-mono); font-stretch: 87.5%; color: var(--amber);
}
.feature-text p { color: var(--text-2); }
.feature-text ul { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 10px; }
.feature-text li { position: relative; padding-left: 22px; color: var(--text-2); font-size: .98rem; }
.feature-text li::before { content: ""; position: absolute; left: 2px; top: .72em; width: 9px; height: 2px; background: var(--amber); border-radius: 2px; }
.feature > img, .feature > figure img {
  width: 100%; border-radius: var(--radius); border: 1px solid var(--line-2); background: var(--panel);
  box-shadow: 0 30px 60px -34px rgba(0, 0, 0, .85);
}
.feature .note, .feature-panel {
  border: 1px solid var(--line-2); border-radius: var(--radius); background: var(--panel); padding: 26px 28px; color: var(--text-2);
}
.feature-panel dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 12px 18px; }
.feature-panel dt { font-family: var(--font-mono); font-stretch: 87.5%; font-size: var(--fs-sm); color: var(--amber); }
.feature-panel dd { margin: 0; }

/* ── 帮助中心 ─────────────────────────────────────────── */
.help { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: clamp(28px, 4vw, 64px); padding-top: clamp(36px, 5vw, 64px); padding-bottom: 80px; }
.help-nav { position: sticky; top: 88px; align-self: start; max-height: calc(100vh - 110px); overflow: auto; }
.help-nav summary { cursor: pointer; font: 500 var(--fs-xs)/1 var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--mute); padding: 8px 0 14px; list-style: none; }
.help-nav summary::-webkit-details-marker { display: none; }
.help-nav ol, .help-nav ul { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--line-2); counter-reset: hn; }
.help-nav li { counter-increment: hn; }
.help-nav a {
  display: grid; grid-template-columns: 2.2em 1fr; padding: 7px 12px; margin-left: -1px; border-left: 2px solid transparent;
  color: var(--text-2); text-decoration: none; font-size: .92rem; line-height: 1.5;
}
.help-nav a::before { content: counter(hn, decimal-leading-zero); font: 400 var(--fs-xs)/1.9 var(--font-mono); color: var(--mute); }
.help-nav a:hover { color: var(--text); border-left-color: var(--amber); }

.prose { max-width: 46em; min-width: 0; }
.prose > * + * { margin-top: 1.05em; }
.prose h1 { font-size: clamp(2rem, 1.2rem + 2.6vw, 3rem); font-weight: 800; letter-spacing: -.03em; }
.prose h2 { font-size: var(--fs-lg); font-weight: 800; margin-top: 2.4em; padding-top: 1.4em; border-top: 1px solid var(--line); scroll-margin-top: 90px; }
.prose h3 { font-size: var(--fs-md); font-weight: 700; margin-top: 1.8em; }
.prose p, .prose li { color: var(--text-2); }
.prose strong { color: var(--text); }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: .35em; }
.prose img { border-radius: var(--radius-sm); border: 1px solid var(--line-2); margin: 1.4em 0 .5em; box-shadow: 0 24px 50px -30px rgba(0, 0, 0, .8); }
.prose sub { display: block; color: var(--mute); font-size: var(--fs-sm); margin-top: -.2em; }
.prose blockquote { margin: 1.4em 0; padding: 14px 20px; border-left: 3px solid var(--amber); background: var(--panel); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.prose blockquote p { color: var(--text-2); }
.prose code { font-family: var(--font-mono); font-stretch: 87.5%; font-size: .84em; background: var(--panel-2); border: 1px solid var(--line); padding: .12em .42em; border-radius: 6px; color: var(--amber-2); }
.prose pre { background: var(--bg-2); border: 1px solid var(--line-2); border-radius: var(--radius-sm); padding: 16px 18px; overflow-x: auto; }
.prose pre code { background: none; border: 0; padding: 0; color: var(--text); font-size: .82rem; }
.prose table { width: 100%; border-collapse: collapse; display: block; overflow-x: auto; font-size: .95rem; }
.prose th, .prose td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose th { color: var(--text); font-weight: 600; border-bottom-color: var(--line-2); }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.4em 0; }

/* ── 视频页 ───────────────────────────────────────────── */
.video-box { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line-2); background: #000; box-shadow: 0 40px 90px -40px rgba(0, 0, 0, .9); }
.video-box video { width: 100%; aspect-ratio: 16 / 9; background: #000; }
.video-notes { color: var(--text-2); margin: 24px 0 80px; max-width: 40em; }
.video-meta { display: flex; flex-wrap: wrap; gap: 10px 28px; margin: 22px 0 0; color: var(--mute); font-size: var(--fs-sm); }
.video-meta .mono { color: var(--text-2); }

/* ── 更新日志：时间线 ─────────────────────────────────── */
.releases { position: relative; padding: 0 0 80px 30px; max-width: 52em; }
.releases::before { content: ""; position: absolute; left: 5px; top: 10px; bottom: 80px; width: 1px; background: linear-gradient(var(--line-2), transparent); }
.release { position: relative; padding: 0 0 46px; }
.release::before { content: ""; position: absolute; left: -30px; top: 9px; width: 11px; height: 11px; border-radius: 3px; background: var(--bg); border: 2px solid var(--amber); }
.release:first-child::before { background: var(--amber); box-shadow: 0 0 14px var(--amber); }
.release header { display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; margin-bottom: 12px; }
.release h2 { font: 700 var(--fs-lg)/1.1 var(--font-mono); font-stretch: 87.5%; letter-spacing: -.02em; }
.release time { font: 400 var(--fs-sm)/1 var(--font-mono); color: var(--mute); }
.release .notes { color: var(--text-2); }
.release .notes > * + * { margin-top: .7em; }
.release .notes ul { padding-left: 1.2em; }
.release .notes strong { color: var(--text); }
.loading, .empty, .error-box { color: var(--mute); padding: 18px 0; }
.error-box { color: var(--bad); }
.empty::before { content: "—  "; font-family: var(--font-mono); }

/* ── 404 ──────────────────────────────────────────────── */
.notfound { padding: clamp(70px, 12vw, 150px) 0; display: grid; gap: 22px; justify-items: start; }
.notfound .code { font: 700 clamp(4rem, 2rem + 9vw, 8rem)/1 var(--font-mono); font-stretch: 87.5%; letter-spacing: -.05em; color: var(--amber-2); }
.notfound h1 { font-size: var(--fs-xl); font-weight: 800; }
.notfound p { color: var(--text-2); }
.notfound .prompt { font: 400 var(--fs-sm)/1.6 var(--font-mono); font-stretch: 87.5%; color: var(--mute); background: var(--panel); border: 1px solid var(--line); padding: 12px 16px; border-radius: var(--radius-sm); }
.notfound .prompt b { color: var(--ok); font-weight: 500; }

/* ── 动效 ─────────────────────────────────────────────── */
@keyframes blink { 50% { opacity: 0; } }
@keyframes pulse { 0%, 100% { box-shadow: 0 0 0 4px rgba(92, 202, 169, .14); } 50% { box-shadow: 0 0 0 7px rgba(92, 202, 169, .04); } }
@keyframes rise { from { transform: translateY(14px); opacity: .001; } to { transform: none; opacity: 1; } }
.hero-copy > * { animation: rise .9s var(--ease) both; }
.hero-copy > *:nth-child(2) { animation-delay: .06s; }
.hero-copy > *:nth-child(3) { animation-delay: .12s; }
.hero-copy > *:nth-child(4) { animation-delay: .18s; }
.hero-copy > *:nth-child(5) { animation-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* ── 响应式 ───────────────────────────────────────────── */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .section-head { grid-template-columns: 1fr; align-items: start; }
  .index { grid-template-columns: 1fr; }
  .showcase { grid-template-columns: 1fr; }
  .day { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .scene:nth-child(3) { padding-left: 0; border-left: 0; }
  .scene:nth-child(n+3) { border-top: 1px solid var(--line); }
  .feature, .feature.flip { grid-template-columns: 1fr; }
  .feature.flip > .feature-text { order: 0; }
  .help { grid-template-columns: 1fr; }
  .help-nav { position: static; max-height: none; border: 1px solid var(--line-2); border-radius: var(--radius-sm); padding: 6px 14px 12px; }
}
@media (max-width: 620px) {
  .bar { min-height: 0; padding-top: 12px; padding-bottom: 10px; }
  .site-nav { width: 100%; overflow-x: auto; flex-wrap: nowrap; margin: 0 -6px; }
  .site-nav a { white-space: nowrap; }
  .thumbs { grid-template-columns: 1fr; }
  .day { grid-template-columns: 1fr; }
  .scene, .scene + .scene { padding-left: 0; border-left: 0; }
  .scene + .scene { border-top: 1px solid var(--line); }
  .term-body li { grid-template-columns: 4.2em 1.4em minmax(0, 1fr); padding: 5px 12px; }
  .index a { grid-template-columns: 2.8em minmax(0, 1fr) auto; }
  .cta .btn { flex: 1 1 auto; }
}

/* ── 后台（/admin）──────────────────────────────────────
 * 工具界面：先给摘要、再给明细；状态用胶囊颜色编码，不只靠文字。 */
.admin-body { min-height: 100vh; display: flex; flex-direction: column; }
.admin-body main { flex: 1; }
.admin-shell { padding: 36px 0 80px; }
.login {
  max-width: 420px; margin: clamp(48px, 10vh, 120px) auto; padding: 36px 34px 32px;
  background: var(--panel); border: 1px solid var(--line-2); border-radius: 18px;
  box-shadow: 0 50px 100px -50px rgba(0, 0, 0, .9);
}
.login .mark { width: 44px; height: 44px; color: var(--text); }
.login h1 { font-size: var(--fs-lg); font-weight: 800; margin: 18px 0 6px; }
.login > p { color: var(--mute); font-size: var(--fs-sm); margin-bottom: 26px; }
.field { display: grid; gap: 7px; margin-bottom: 16px; }
.field label { font-size: var(--fs-sm); color: var(--text-2); font-weight: 500; }
.input, .field input, .field select, .field textarea, .admin-shell select, .admin-shell input[type="text"], .admin-shell textarea {
  width: 100%; font: 400 .95rem/1.4 var(--font-sans); color: var(--text);
  background: var(--bg-2); border: 1px solid var(--line-2); border-radius: var(--radius-sm); padding: 11px 13px;
  transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field select:focus, .field textarea:focus, .admin-shell select:focus, .admin-shell input:focus, .admin-shell textarea:focus {
  outline: none; border-color: var(--amber); box-shadow: 0 0 0 3px rgba(242, 165, 65, .18);
}
.field textarea, .admin-shell textarea { min-height: 160px; font-family: var(--font-mono); font-stretch: 87.5%; font-size: .82rem; line-height: 1.6; }
.login .btn { width: 100%; margin-top: 8px; padding: 14px; }
.form-error { color: var(--bad); font-size: var(--fs-sm); min-height: 1.4em; margin-top: 10px; }
.form-hint { color: var(--mute); font-size: var(--fs-xs); margin-top: 16px; line-height: 1.6; }

.admin-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 28px; }
.admin-top h1 { font-size: var(--fs-xl); font-weight: 800; letter-spacing: -.025em; }
.who { display: inline-flex; align-items: center; gap: 12px; color: var(--text-2); font-size: var(--fs-sm); }
.who .avatar { width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; background: var(--panel-2); border: 1px solid var(--line-2); font: 600 .8rem/1 var(--font-mono); color: var(--amber-2); }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 26px; overflow-x: auto; }
.tabs button {
  appearance: none; background: none; border: 0; color: var(--text-2); font: 500 .95rem/1 var(--font-sans);
  padding: 14px 16px; cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap;
}
.tabs button:hover { color: var(--text); }
.tabs button[aria-selected="true"] { color: var(--text); border-bottom-color: var(--amber); }
.tabs .count { font: 500 var(--fs-xs)/1 var(--font-mono); color: var(--amber-2); background: rgba(242, 165, 65, .12); border-radius: 999px; padding: 3px 7px; margin-left: 6px; }
.toolbar { display: flex; gap: 12px; align-items: center; justify-content: space-between; flex-wrap: wrap; margin-bottom: 16px; }
.toolbar .left { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.toolbar select { width: auto; min-width: 150px; padding: 9px 12px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; margin-bottom: 26px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px 18px; }
.stat .n { font: 700 1.7rem/1.1 var(--font-mono); font-stretch: 87.5%; font-variant-numeric: tabular-nums; color: var(--text); }
.stat .l { color: var(--mute); font-size: var(--fs-xs); margin-top: 6px; }
.stat.warn { border-color: rgba(242, 165, 65, .5); }
.stat.warn .n { color: var(--amber-2); }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); }
.table-wrap table { width: 100%; border-collapse: collapse; font-size: .9rem; min-width: 760px; }
.table-wrap th {
  text-align: left; font: 500 var(--fs-xs)/1 var(--font-mono); font-stretch: 87.5%; letter-spacing: .06em; text-transform: uppercase;
  color: var(--mute); padding: 13px 14px; border-bottom: 1px solid var(--line-2); background: var(--panel); white-space: nowrap;
}
.table-wrap td { padding: 13px 14px; border-bottom: 1px solid var(--line); vertical-align: middle; color: var(--text-2); }
.table-wrap tr:last-child td { border-bottom: 0; }
.table-wrap tbody tr:hover td { background: rgba(255, 255, 255, .015); }
.table-wrap td .mono, .table-wrap code { font-family: var(--font-mono); font-stretch: 87.5%; font-size: .8rem; color: var(--text-2); }
.table-wrap td strong { color: var(--text); font-weight: 600; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }
.btn-sm { padding: 7px 12px; font-size: var(--fs-xs); }
.btn-danger { color: var(--bad); border-color: rgba(255, 122, 107, .4); }
.btn-danger:hover { color: #fff; background: rgba(255, 122, 107, .16); border-color: var(--bad); }
.badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px;
  font: 500 var(--fs-xs)/1.2 var(--font-sans); white-space: nowrap; border: 1px solid transparent;
}
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge-pending, .badge.pending, .badge-warn { color: var(--amber-2); background: rgba(242, 165, 65, .12); border-color: rgba(242, 165, 65, .28); }
.badge-approved, .badge.approved, .badge-ok, .badge-online, .badge.online, .badge-succeeded, .badge-repaired { color: var(--ok); background: rgba(92, 202, 169, .1); border-color: rgba(92, 202, 169, .26); }
.badge-rejected, .badge.rejected, .badge-revoked, .badge.revoked, .badge-failed, .badge-bad { color: var(--bad); background: rgba(255, 122, 107, .1); border-color: rgba(255, 122, 107, .26); }
.badge-offline, .badge.offline, .badge-draft, .badge.draft, .badge-muted, .badge-rolled_back { color: var(--text-2); background: rgba(255, 255, 255, .04); border-color: var(--line-2); }
.badge-beta { color: var(--wait); background: rgba(147, 168, 255, .1); border-color: rgba(147, 168, 255, .26); }
.badge-stable { color: var(--text); background: rgba(255, 255, 255, .06); border-color: var(--line-2); }
.notice { border: 1px solid var(--line-2); background: var(--panel); border-radius: var(--radius-sm); padding: 12px 16px; color: var(--text-2); font-size: var(--fs-sm); margin-bottom: 18px; }
.notice.warn { border-color: rgba(242, 165, 65, .45); color: var(--amber-2); background: rgba(242, 165, 65, .08); }
.notice.error { border-color: rgba(255, 122, 107, .45); color: var(--bad); background: rgba(255, 122, 107, .08); }
.empty-row { text-align: center; color: var(--mute); padding: 40px 14px !important; }
dialog {
  color: var(--text); background: var(--panel); border: 1px solid var(--line-2); border-radius: 16px;
  padding: 0; width: min(620px, calc(100vw - 32px)); box-shadow: 0 50px 100px -40px rgba(0, 0, 0, .95);
}
dialog::backdrop { background: rgba(5, 8, 13, .72); backdrop-filter: blur(4px); }
.dialog-head { padding: 20px 24px 6px; }
.dialog-head h2 { font-size: var(--fs-md); font-weight: 700; }
.dialog-body { padding: 14px 24px; }
.dialog-foot { display: flex; justify-content: flex-end; gap: 10px; padding: 14px 24px 22px; }
.notes-preview { color: var(--text-2); font-size: .9rem; max-width: 34em; }
.notes-preview > * + * { margin-top: .5em; }
[hidden] { display: none !important; }

/* ── 功能页里的界面小样（无截图的小节，用真实界面元素示意） ── */
.feature-panel { display: grid; gap: 16px; padding: 22px 24px; box-shadow: 0 30px 60px -36px rgba(0, 0, 0, .85); }
.feature-panel .dim, .dim { color: var(--mute); font-size: var(--fs-sm); }
.mock-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: var(--fs-sm); color: var(--text-2); padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.mock-doc { display: grid; gap: 8px; padding: 18px; border-radius: var(--radius-sm); background: var(--bg-2); border: 1px solid var(--line); }
.mock-doc .mono { font-size: var(--fs-xs); color: var(--amber); }
.mock-doc strong { color: var(--text); font-size: 1.02rem; }
.mock-lines { display: grid; gap: 7px; margin-top: 6px; }
.mock-lines i { display: block; height: 7px; border-radius: 4px; background: var(--line-2); }
.mock-lines i:nth-child(2) { width: 86%; }
.mock-lines i:nth-child(3) { width: 58%; }
.mock-thread { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.mock-thread li { display: grid; grid-template-columns: 32px minmax(0, 1fr); gap: 12px; align-items: start; }
.mock-thread p { font-size: .94rem; color: var(--text-2); background: var(--bg-2); border: 1px solid var(--line); border-radius: 4px 12px 12px 12px; padding: 10px 14px; }
.mock-thread p b { display: block; color: var(--text); font-size: var(--fs-xs); font-weight: 600; margin-bottom: 2px; }
.who-dot { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; background: var(--panel-2); border: 1px solid var(--line-2); font-size: .78rem; color: var(--text-2); }
.who-dot.ai { background: rgba(242, 165, 65, .14); border-color: rgba(242, 165, 65, .4); color: var(--amber-2); font-family: var(--font-mono); font-size: .66rem; }
.mock-store ul, .mock-upgrade ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.mock-store li { display: grid; grid-template-columns: minmax(0, 1fr) auto 5.5em; gap: 14px; align-items: center; padding: 10px 2px; border-bottom: 1px dashed var(--line); font-size: var(--fs-sm); }
.mock-store li .mono { font-size: .8rem; }
.mock-store li .dim { text-align: right; }
.mock-upgrade li { display: flex; justify-content: space-between; gap: 14px; padding: 10px 2px 10px 26px; position: relative; font-size: .94rem; color: var(--text-2); }
.mock-upgrade li::before { content: ""; position: absolute; left: 4px; top: 50%; width: 10px; height: 10px; margin-top: -5px; border-radius: 50%; border: 2px solid var(--ok); background: var(--ok); }
.mock-upgrade li::after { content: ""; position: absolute; left: 8px; top: calc(50% + 7px); height: calc(100% - 10px); width: 2px; background: var(--line-2); }
.mock-upgrade li:last-child::after { display: none; }
.mock-upgrade li.fix::before { background: var(--bg); border-color: var(--amber); }
.mock-upgrade li.fix { color: var(--amber-2); }
.mock-upgrade li .mono { font-size: .76rem; color: var(--mute); }

/* ── 后台：脚本依赖的状态类（hidden / notice-* / badge-* / sub / hint 等） ── */
.hidden { display: none !important; }
.brand-tag { font-size: var(--fs-xs); color: var(--mute); border: 1px solid var(--line-2); border-radius: 999px; padding: 4px 10px; margin-left: 4px; letter-spacing: .04em; }
.user-bar { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hint, .sub { color: var(--mute); font-size: var(--fs-sm); }
td.sub { padding: 34px 14px !important; text-align: center; }
label.inline { color: var(--text-2); font-size: var(--fs-sm); }
.toolbar input[type="search"] { width: 240px; padding: 9px 12px; }
.notice-ok { border-color: rgba(92, 202, 169, .45); color: var(--ok); background: rgba(92, 202, 169, .08); }
.notice-error { border-color: rgba(255, 122, 107, .45); color: var(--bad); background: rgba(255, 122, 107, .08); }
.notice-warn { border-color: rgba(242, 165, 65, .45); color: var(--amber-2); background: rgba(242, 165, 65, .08); }
td .notice { display: block; margin: 0; }
.login .notice { margin: 4px 0 6px; }
.badge-danger { color: var(--bad); background: rgba(255, 122, 107, .1); border-color: rgba(255, 122, 107, .26); }
.badge-info { color: var(--wait); background: rgba(147, 168, 255, .1); border-color: rgba(147, 168, 255, .26); }
.usage { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-bottom: 20px; }
.usage > span { display: grid; gap: 6px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px 18px; color: var(--mute); font-size: var(--fs-xs); }
.usage b { order: -1; font: 700 1.45rem/1.1 var(--font-mono); font-stretch: 87.5%; color: var(--text); font-variant-numeric: tabular-nums; }
.usage .sub { font-size: var(--fs-xs); }
.wrap-cell { max-width: 320px; }
details.log summary { cursor: pointer; color: var(--amber-2); font-size: var(--fs-sm); }
details.log[open] summary { margin-bottom: 8px; }
details.log pre, details.log .prose { font-size: .8rem; max-height: 280px; overflow: auto; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; white-space: pre-wrap; }
.field .label { font-size: var(--fs-sm); color: var(--text-2); font-weight: 500; }
.preview { min-height: 160px; max-height: 340px; overflow: auto; background: var(--bg-2); border: 1px solid var(--line-2); border-radius: var(--radius-sm); padding: 12px 14px; font-size: .92rem; }
dialog.wide { width: min(980px, calc(100vw - 32px)); }
.dialog-body.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 760px) { .dialog-body.split { grid-template-columns: 1fr; } .user-bar .hint { display: none; } }