/* 项目档案页（2026-10-14）：由《爆款视频复刻自动化》专页的语言扩展而来。
   深浅交替的章节、等宽小标、一处项目色；每个项目用 body 上的 --accent 换掉信号色。 */
:root {
  color-scheme: dark;
  background: #0a0b0b;
  color: #f0f0ea;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; background: #0a0b0b; }

body {
  min-width: 320px;
  margin: 0;
  overflow-x: clip;
  background: #0a0b0b;
  color: #f0f0ea;
}

button, summary { font: inherit; }
a { color: inherit; }
img, video, canvas, iframe { display: block; max-width: 100%; }

.dossier {
  --ink: #111313;
  --night: #0a0b0b;
  --night-2: #111313;
  --paper: #efefe7;
  --stone: #d9dad2;
  --quiet: #858983;
  --line-dark: rgba(242, 242, 235, 0.18);
  --line-light: rgba(17, 19, 19, 0.2);
  --accent: #f04d22;
  --accent-ink: #a13d21;
  --on-accent: #111313;
  --mono: ui-monospace, "SFMono-Regular", Menlo, monospace;
  --edge: max(48px, calc((100% - 1080px) / 2));
}

.dossier-skip {
  position: fixed;
  z-index: 1200;
  top: 82px;
  left: 18px;
  min-height: 44px;
  padding: 0 16px;
  display: flex;
  align-items: center;
  background: #f2f2eb;
  color: #111313;
  text-decoration: none;
  transform: translateY(-160px);
  transition: transform 180ms ease;
}
.dossier-skip:focus { transform: none; }

.mono,
.dos-kicker,
.section-label,
.section-kicker,
.dos-proof dt,
.dos-facts dt,
.dos-shot figcaption,
.dos-chapters small {
  font-family: var(--mono);
  letter-spacing: 0;
}

/* ---------- 首屏 ---------- */
.dos-mast {
  position: relative;
  padding: 112px var(--edge) 0;
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(300px, 0.78fr);
  grid-template-areas:
    "back back"
    "visual intro"
    "proof proof"
    "chapters chapters";
  column-gap: 64px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    #0a0b0b;
  background-size: 100% 92px, 14.285% 100%, auto;
  border-bottom: 1px solid var(--line-dark);
}

.dos-mast > .project-back {
  grid-area: back;
  justify-self: start;
  margin-bottom: 44px;
}

.dos-visual { grid-area: visual; align-self: end; min-width: 0; }

.dos-intro { grid-area: intro; align-self: end; min-width: 0; padding-bottom: 4px; }

.dos-kicker {
  margin: 0 0 28px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--quiet);
  font-size: 10px;
  line-height: 1;
}
.dos-kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: none;
  background: var(--accent);
}

.dos-intro h1 {
  margin: 0;
  /* 每段最多四个字，在右栏一行放下 */
  font-size: clamp(52px, 5.6vw, 84px);
  font-weight: 520;
  line-height: 0.98;
  letter-spacing: 0;
}
.dos-intro h1 span { display: block; }
.dos-intro h1 span + span { color: #7f837e; }

.dos-summary {
  margin: 34px 0 0;
  color: #b9bcb6;
  font-size: 16px;
  line-height: 1.85;
}

/* 截图外框：一条等宽字的地址栏，不模拟浏览器按钮 */
.dos-shot {
  margin: 0;
  border: 1px solid var(--line-dark);
  background: #141615;
  overflow: hidden;
}
.dos-shot figcaption {
  min-height: 34px;
  padding: 0 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--line-dark);
  color: #8d918b;
  font-size: 10px;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dos-shot figcaption::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--accent);
}
.dos-shot img,
.dos-shot video {
  width: 100%;
  height: auto;
  background: #0d0e0e;
}
.dos-shot.is-crop img { aspect-ratio: 16 / 10; object-fit: cover; object-position: top center; }
.dos-shot.is-phone { max-width: 320px; }
.dos-shot.is-phone img { aspect-ratio: auto; }
.is-paper .dos-shot,
.is-stone .dos-shot { border-color: rgba(17, 19, 19, 0.26); background: #f8f8f1; }
.is-paper .dos-shot figcaption,
.is-stone .dos-shot figcaption { border-color: rgba(17, 19, 19, 0.18); color: #5b605a; }

/* 证据条：一份能打开、下载或试玩的东西 */
.dos-proof {
  grid-area: proof;
  margin-top: 56px;
  padding: 26px 0 30px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "label label"
    "name cta"
    "facts cta";
  gap: 14px 48px;
  align-items: end;
  border-top: 1px solid var(--line-dark);
}
.dos-proof > p {
  grid-area: label;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #858983;
  font: 500 9px/1 var(--mono);
}
.dos-proof > p span {
  width: 6px;
  height: 6px;
  display: inline-block;
  background: var(--accent);
}
.dos-proof > strong {
  grid-area: name;
  min-width: 0;
  overflow-wrap: anywhere;
  color: #f0f0ea;
  font-size: 30px;
  font-weight: 520;
  line-height: 1.1;
}
.dos-proof dl {
  grid-area: facts;
  margin: 6px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 40px;
}
.dos-proof dl div { display: grid; gap: 8px; }
.dos-proof dt { color: #747873; font-size: 9px; line-height: 1.5; }
.dos-proof dd { margin: 0; color: #d6d7d1; font-size: 14px; line-height: 1.5; }
.dos-cta {
  grid-area: cta;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.dos-button {
  min-width: 200px;
  min-height: 54px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border: 1px solid #3a3d3b;
  background: transparent;
  color: #e3e4de;
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease;
}
.dos-button:hover,
.dos-button:focus-visible { border-color: #f0f0ea; background: #f0f0ea; color: #111313; }
.dos-button.is-primary { border-color: #f1f1eb; background: #f1f1eb; color: #111313; }
.dos-button.is-primary:hover,
.dos-button.is-primary:focus-visible { border-color: var(--accent); background: var(--accent); color: var(--on-accent); }
.is-paper .dos-button,
.is-stone .dos-button { border-color: rgba(17, 19, 19, 0.4); color: #111313; }
.is-paper .dos-button:hover,
.is-stone .dos-button:hover,
.is-paper .dos-button:focus-visible,
.is-stone .dos-button:focus-visible { background: #111313; border-color: #111313; color: #f0f0ea; }
.is-paper .dos-button.is-primary,
.is-stone .dos-button.is-primary { background: #111313; border-color: #111313; color: #f0f0ea; }

/* 章节目录 */
.dos-chapters {
  grid-area: chapters;
  display: grid;
  grid-template-columns: repeat(var(--chapter-count, 5), minmax(0, 1fr));
  border-top: 1px solid var(--line-dark);
}
.dos-chapters a,
.dos-map a {
  min-height: 88px;
  padding: 18px;
  display: grid;
  align-content: space-between;
  border-right: 1px solid var(--line-dark);
  color: #777b76;
  text-decoration: none;
  transition: color 160ms ease, background 160ms ease;
}
.dos-chapters a:last-child,
.dos-map a:last-child { border-right: 0; }
.dos-chapters a:hover,
.dos-chapters a:focus-visible,
.dos-chapters a[aria-current="true"],
.dos-map a:hover,
.dos-map a:focus-visible { color: #f1f1eb; background: rgba(255, 255, 255, 0.035); }
.dos-chapters small,
.dos-map small { font: 500 9px/1 var(--mono); }
.dos-chapters span,
.dos-map span { font-size: 13px; }

/* ---------- 章节 ---------- */
.dos-section {
  position: relative;
  scroll-margin-top: 82px;
  padding: 124px var(--edge) 112px;
  overflow: clip;
}
.dos-section.is-dark { background: #111313; }
.dos-section.is-night { background: #0a0b0b; }
.dos-section.is-paper { background: var(--paper); color: var(--ink); }
.dos-section.is-stone { background: var(--stone); color: var(--ink); }
.dos-section.is-accent-edge {
  background:
    linear-gradient(90deg, var(--accent) 0 10px, transparent 10px),
    #111313;
}

.section-label {
  position: absolute;
  top: 34px;
  left: var(--edge);
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 10px;
}
.section-label small { opacity: 0.48; font-size: 9px; }

.section-kicker {
  margin: 0 0 26px;
  color: var(--accent);
  font-size: 10px;
  line-height: 1;
}
.is-paper .section-kicker,
.is-stone .section-kicker { color: var(--accent-ink); }

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  align-items: end;
  gap: 64px;
  margin-bottom: 68px;
}
.section-head h2,
.dos-statement h2 {
  /* 标题按短语手动换行（<br>），每行不超过九个字（含标点），避免在词中间断开 */
  max-width: none;
  margin: 0;
  font-size: clamp(40px, 4.6vw, 64px);
  font-weight: 520;
  line-height: 0.98;
  letter-spacing: 0;
}
.section-head > p {
  max-width: 36em;
  margin: 0;
  color: #a6aaa4;
  font-size: 14px;
  line-height: 1.85;
}
.is-paper .section-head > p,
.is-stone .section-head > p { color: #5a5f59; }

/* 问题与原则：左边一段话，右边一张编号清单 */
.dos-statement {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 64px;
  align-items: end;
}
.dos-statement.is-start { align-items: start; }
.dos-lead {
  max-width: 42em;
  margin: 40px 0 0;
  color: #aeb2ac;
  font-size: 16px;
  line-height: 1.9;
}
.is-paper .dos-lead,
.is-stone .dos-lead { color: #555a55; }
.dos-lead + .dos-lead { margin-top: 18px; }
.dos-statement blockquote,
.dos-quote {
  max-width: 39em;
  margin: 30px 0 0;
  padding: 16px 0 16px 24px;
  border-left: 2px solid var(--accent);
  color: #d9dad3;
  font-size: 14px;
  line-height: 1.85;
}
.is-paper .dos-statement blockquote,
.is-stone .dos-statement blockquote,
.is-paper .dos-quote,
.is-stone .dos-quote { color: #252827; }

.dos-numbered {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
  counter-reset: item;
}
.is-paper .dos-numbered,
.is-stone .dos-numbered { border-color: var(--line-light); }
.dos-numbered li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-dark);
  color: #c9cbc4;
  font-size: 13px;
  line-height: 1.75;
  counter-increment: item;
}
.is-paper .dos-numbered li,
.is-stone .dos-numbered li { border-color: var(--line-light); color: #3f443f; }
.dos-numbered li::before {
  content: counter(item, decimal-leading-zero);
  color: #8a8e88;
  font: 500 9px/1.9 var(--mono);
}
.dos-numbered strong { display: block; margin-bottom: 4px; font-weight: 600; }

/* 一组事实 */
.dos-facts {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(var(--fact-count, 4), minmax(0, 1fr));
  border-top: 1px solid var(--line-dark);
}
.is-paper .dos-facts,
.is-stone .dos-facts { border-color: var(--line-light); }
.dos-facts div {
  min-height: 132px;
  padding: 22px 22px 22px 0;
  border-right: 1px solid var(--line-dark);
}
.dos-facts div + div { padding-left: 22px; }
.dos-facts div:last-child { border-right: 0; }
.is-paper .dos-facts div,
.is-stone .dos-facts div { border-color: var(--line-light); }
.dos-facts dt { color: #858983; font-size: 9px; line-height: 1.5; }
.is-paper .dos-facts dt,
.is-stone .dos-facts dt { color: #6f736d; }
.dos-facts dd { margin: 16px 0 0; font-size: 13px; line-height: 1.65; }
.dos-facts dd b {
  display: block;
  margin-bottom: 6px;
  font-size: 40px;
  font-weight: 520;
  line-height: 1;
}

/* 截图组 */
.dos-gallery {
  display: grid;
  grid-template-columns: repeat(var(--gallery-columns, 2), minmax(0, 1fr));
  gap: 28px;
  align-items: start;
}
.dos-gallery.is-wide-phone { grid-template-columns: minmax(0, 2.4fr) minmax(200px, 0.8fr); }
.dos-gallery figure { margin: 0; }
.dos-gallery figure > p {
  margin: 14px 0 0;
  color: #8d918b;
  font-size: 13px;
  line-height: 1.7;
}
.is-paper .dos-gallery figure > p,
.is-stone .dos-gallery figure > p { color: #5a5f59; }

/* 可展开的步骤 */
.dos-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid #777b75;
}
.dos-steps li { border-bottom: 1px solid #aeb2aa; }
.is-dark .dos-steps,
.is-night .dos-steps { border-color: var(--line-dark); }
.is-dark .dos-steps li,
.is-night .dos-steps li { border-color: var(--line-dark); }
.dos-steps button {
  width: 100%;
  min-height: 92px;
  padding: 16px 0;
  display: grid;
  grid-template-columns: 80px 1fr 44px;
  align-items: center;
  gap: 24px;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
}
.dos-steps button span { font: 600 10px/1 var(--mono); }
.dos-steps button strong { font-size: 32px; font-weight: 520; letter-spacing: 0; }
.dos-steps button i { font-style: normal; font-size: 22px; transition: transform 160ms ease; }
.dos-steps button[aria-expanded="true"] i { transform: rotate(45deg); }
.dos-steps li > div { max-width: 62em; padding: 0 0 30px 104px; }
.dos-steps li > div p {
  margin: 0;
  color: #505650;
  font-size: 14px;
  line-height: 1.85;
}
.dos-steps li > div p + p { margin-top: 10px; }
.is-dark .dos-steps li > div p,
.is-night .dos-steps li > div p { color: #b0b4ae; }

/* 时间线 */
.dos-timeline {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
}
.is-paper .dos-timeline,
.is-stone .dos-timeline { border-color: #777b75; }
.dos-timeline li {
  display: grid;
  grid-template-columns: 140px minmax(0, 0.9fr) minmax(0, 1.4fr);
  gap: 32px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line-dark);
}
.is-paper .dos-timeline li,
.is-stone .dos-timeline li { border-color: #aeb2aa; }
.dos-timeline time,
.dos-timeline .tl-tag { color: var(--accent); font: 600 11px/1.6 var(--mono); }
.is-paper .dos-timeline time,
.is-stone .dos-timeline time,
.is-paper .dos-timeline .tl-tag,
.is-stone .dos-timeline .tl-tag { color: var(--accent-ink); }
.dos-timeline strong { font-size: 19px; font-weight: 520; line-height: 1.45; }
.dos-timeline p { margin: 0; color: #a6aaa4; font-size: 14px; line-height: 1.8; }
.is-paper .dos-timeline p,
.is-stone .dos-timeline p { color: #555a55; }

/* 编号卡片 */
.dos-cards {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(var(--card-columns, 3), minmax(0, 1fr));
  border-top: 1px solid var(--line-dark);
  border-left: 1px solid var(--line-dark);
}
.dos-cards > li {
  min-height: 210px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  border-right: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}
.is-paper .dos-cards,
.is-stone .dos-cards,
.is-paper .dos-cards > li,
.is-stone .dos-cards > li { border-color: rgba(17, 19, 19, 0.22); }
.dos-cards small { color: var(--accent); font: 600 10px/1 var(--mono); }
.is-paper .dos-cards small,
.is-stone .dos-cards small { color: var(--accent-ink); }
.dos-cards strong { font-size: 22px; font-weight: 520; line-height: 1.3; }
.dos-cards p { margin: 0; color: #a6aaa4; font-size: 13px; line-height: 1.8; }
.is-paper .dos-cards p,
.is-stone .dos-cards p { color: #555a55; }
.dos-cards .card-meta {
  margin-top: auto;
  color: #858983;
  font: 500 10px/1.6 var(--mono);
}

/* 一期刊物的时长条（阅读小刊） */
.dos-anatomy-bar {
  display: flex;
  gap: 3px;
  height: 46px;
  margin-bottom: 28px;
}
.dos-anatomy-bar span {
  flex: var(--span) 1 0;
  min-width: 6px;
  padding: 0 10px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--accent-ink);
  color: #f6efe9;
  font: 600 11px/1 var(--mono);
  white-space: nowrap;
}
.dos-anatomy-bar span:nth-child(2n) { background: #111313; }
.dos-anatomy-bar span:nth-child(1),
.dos-anatomy-bar span:nth-child(3) { padding: 0; }

/* 闭环与优先级（贾维斯） */
.dos-loop {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
}
.dos-loop li {
  position: relative;
  min-height: 170px;
  padding: 20px 20px 22px;
  display: grid;
  align-content: start;
  gap: 10px;
  border: 1px solid rgba(17, 19, 19, 0.3);
  background: rgba(255, 255, 255, 0.28);
}
.dos-loop li::after {
  content: "→";
  position: absolute;
  top: 50%;
  right: -22px;
  color: var(--accent-ink);
  font: 600 16px/1 var(--mono);
  transform: translateY(-50%);
}
.dos-loop li:last-child::after { content: "↺"; right: auto; left: auto; top: auto; bottom: 12px; right: 14px; transform: none; }
.dos-loop small { color: var(--accent-ink); font: 600 10px/1 var(--mono); }
.dos-loop strong { font-size: 26px; font-weight: 520; }
.dos-loop p { margin: 0; color: #555a55; font-size: 13px; line-height: 1.75; }
.dos-ladder {
  margin: 72px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: rank;
  border-top: 1px solid #777b75;
}
.dos-ladder li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  align-items: center;
  gap: 18px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(17, 19, 19, 0.18);
  counter-increment: rank;
}
.dos-ladder li::before { content: counter(rank, decimal-leading-zero); color: #6f736d; font: 600 10px/1 var(--mono); }
.dos-ladder span {
  width: calc(36% + var(--rank) * 9%);
  min-height: 34px;
  padding: 6px 14px;
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--accent-ink) calc(28% + var(--rank) * 10%), #d9dad2);
  color: #f7f8f3;
  font-size: 14px;
  line-height: 1.4;
}

/* 复习节奏条 */
.dos-anatomy-bar.is-rhythm span { justify-content: center; background: var(--accent-ink); color: #f3f6ef; }
.dos-anatomy-bar.is-rhythm span:nth-child(2n) { background: #2c3a30; }

/* 散开的纸张（家教首屏） */
.dos-sheets {
  position: relative;
  aspect-ratio: 16 / 11;
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background:
    radial-gradient(circle at 50% 40%, rgba(157, 184, 140, 0.16), transparent 60%),
    #141615;
}
.dos-sheets img {
  position: absolute;
  top: 9%;
  width: 37%;
  height: auto;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
}
.dos-sheets img:nth-child(1) { left: 6%; transform: rotate(-5deg); }
.dos-sheets img:nth-child(2) { left: 31.5%; top: 6%; z-index: 2; transform: rotate(0.5deg); }
.dos-sheets img:nth-child(3) { left: 57%; transform: rotate(5deg); }

/* 八张模板 */
.dos-templates {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 40px 24px;
}
.dos-templates figure { margin: 0; }
.dos-templates img {
  width: 100%;
  height: auto;
  border: 1px solid rgba(17, 19, 19, 0.16);
  box-shadow: 0 10px 26px rgba(17, 19, 19, 0.12);
  background: #fff;
}
.dos-templates figcaption { display: grid; gap: 4px; margin-top: 14px; }
.dos-templates small { color: var(--accent-ink); font: 600 10px/1 var(--mono); }
.dos-templates strong { font-size: 16px; font-weight: 600; }
.dos-templates span { color: #5a5f59; font-size: 12px; line-height: 1.7; }

/* 标签串 */
.dos-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 2px 0 4px; }
.dos-chips span {
  padding: 6px 10px;
  border: 1px solid rgba(17, 19, 19, 0.3);
  color: #111313;
  font-size: 13px;
  line-height: 1.4;
}
.is-dark .dos-chips span,
.is-night .dos-chips span { border-color: var(--line-dark); color: #e3e4de; }

/* 两栏对比表 */
.dos-compare { border-top: 1px solid #777b75; }
.dos-compare > div {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(17, 19, 19, 0.22);
  font-size: 14px;
  line-height: 1.7;
}
.dos-compare [role="rowheader"] { color: var(--accent-ink); font: 600 11px/1.9 var(--mono); }
.dos-compare .compare-head { padding: 14px 0; }
.dos-compare .compare-head span { font-size: 18px; font-weight: 600; }
.is-dark .dos-compare,
.is-night .dos-compare { border-color: var(--line-dark); }
.is-dark .dos-compare > div,
.is-night .dos-compare > div { border-color: var(--line-dark); }
.is-dark .dos-compare [role="rowheader"],
.is-night .dos-compare [role="rowheader"] { color: var(--accent); }

/* 人生方格演示（财富自由指南灯）：参数横排在上，方格铺满版心，一行一年 */
.dos-lifegrid { display: grid; gap: 36px; }
.lifegrid-controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px 40px;
  align-items: end;
}
.lifegrid-controls label { display: grid; gap: 10px; color: #3f443f; font-size: 13px; }
.lifegrid-controls label > span { display: flex; justify-content: space-between; gap: 12px; }
.lifegrid-controls output { color: #111313; font: 600 13px/1 var(--mono); }
.lifegrid-controls input[type="range"] { width: 100%; min-height: 28px; accent-color: var(--accent-ink); }
.lifegrid-actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 10px; }
.lifegrid-actions .dos-button { min-width: 168px; min-height: 46px; flex: 0 1 auto; gap: 18px; font-size: 13px; }
.lifegrid-note { grid-column: 1 / -1; max-width: 46em; margin: 0; color: #6f736d; font-size: 12px; line-height: 1.75; }
.lifegrid-stage {
  padding: 22px;
  border: 1px solid rgba(17, 19, 19, 0.22);
  background: #f3eee1;
}
.lifegrid-readout {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 26px;
  margin-bottom: 18px;
  color: #3f443f;
  font-size: 13px;
}
.lifegrid-readout strong { color: #111313; font-size: 64px; font-weight: 520; line-height: 1; }
.lifegrid-readout em { font-style: normal; color: var(--accent-ink); font: 600 12px/1.6 var(--mono); }
.lifegrid-stage canvas { width: 100%; height: auto; }
.lifegrid-axis {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  color: #7a7d76;
  font: 500 10px/1.4 var(--mono);
}
.lifegrid-legend { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 12px; color: #5a5f59; font-size: 12px; }
.lifegrid-legend span { display: inline-flex; align-items: center; gap: 7px; }
.lifegrid-legend i { width: 9px; height: 9px; display: inline-block; }

/* 公式 */
.dos-formula { margin: 0; border-top: 1px solid #777b75; }
.dos-formula div {
  display: grid;
  grid-template-columns: minmax(180px, 0.5fr) minmax(0, 1fr);
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(17, 19, 19, 0.22);
}
.dos-formula dt { font-size: 18px; font-weight: 520; }
.dos-formula dd { margin: 0; color: #3f443f; font: 500 15px/1.7 var(--mono); }

/* 这份交付没有假装完成什么 */
.dos-limits {
  display: grid;
  grid-template-columns: minmax(240px, 0.55fr) 1fr;
  gap: 64px;
  margin-top: 88px;
  padding-top: 40px;
  border-top: 1px solid var(--line-dark);
}
.is-paper .dos-limits,
.is-stone .dos-limits { border-color: var(--line-light); }
.dos-limits h3 {
  max-width: none;
  margin: 0;
  font-size: 36px;
  font-weight: 520;
  line-height: 1.1;
  letter-spacing: 0;
}
.dos-limits ul { margin: 0; padding: 0; list-style: none; }
.dos-limits li {
  padding: 15px 0;
  border-top: 1px solid var(--line-dark);
  color: #b9bcb6;
  font-size: 13px;
  line-height: 1.75;
}
.is-paper .dos-limits li,
.is-stone .dos-limits li { border-color: var(--line-light); color: #3f443f; }

/* 视频 */
.dos-player {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 64px;
  align-items: center;
}
.dos-player video {
  width: 100%;
  max-height: 82svh;
  aspect-ratio: 9 / 16;
  object-fit: contain;
  background: #000;
}
.dos-player.is-portrait .dos-shot { width: 100%; max-width: 420px; justify-self: center; }
.dos-player h2 {
  margin: 0;
  font-size: clamp(36px, 4.6vw, 60px);
  font-weight: 520;
  line-height: 1.02;
  letter-spacing: 0;
}

/* 游戏机柜：先放截图，点开始才载入游戏 */
.dos-cabinet { margin: 0; }
.dos-cabinet .cabinet-screen {
  position: relative;
  aspect-ratio: var(--cabinet-ratio, 16 / 10);
  border: 1px solid var(--line-dark);
  background: #05050a;
  overflow: hidden;
}
.dos-cabinet .cabinet-screen > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  image-rendering: auto;
}
.dos-cabinet .cabinet-screen iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: #000;
}
.dos-cabinet .cabinet-start {
  position: absolute;
  left: 24px;
  bottom: 24px;
}
.dos-cabinet .cabinet-bar {
  min-height: 52px;
  padding: 12px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  border-bottom: 1px solid var(--line-dark);
  color: #9a9e98;
  font-size: 13px;
}
.dos-cabinet .cabinet-bar a { color: #e3e4de; text-underline-offset: 5px; }
.dos-cabinet.is-playing .cabinet-start,
.dos-cabinet.is-playing .cabinet-screen > img { display: none; }

/* 档案总览与页尾 */
.dos-overview-copy {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  align-items: end;
  gap: 64px;
}
.dos-overview-copy .section-kicker { grid-column: 1 / -1; color: #858983; }
.dos-overview-copy h2 {
  max-width: 10ch;
  margin: 0;
  font-size: clamp(42px, 5.4vw, 72px);
  font-weight: 520;
  line-height: 0.98;
}
.dos-overview-copy > p:last-child { margin: 0; color: #a6aaa4; font-size: 15px; line-height: 1.85; }
.dos-overview .dos-facts { margin-top: 80px; }
.dos-map {
  display: grid;
  grid-template-columns: repeat(var(--map-count, 4), minmax(0, 1fr));
  margin-top: 48px;
  border-top: 1px solid var(--line-dark);
}
.dos-map a { min-height: 120px; }

.dos-end {
  min-height: 132px;
  padding: 36px var(--edge);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px 32px;
  border-top: 1px solid var(--line-dark);
  background: #0a0b0b;
  color: #777b76;
  font-size: 13px;
}
.dos-end nav { display: flex; flex-wrap: wrap; gap: 14px 28px; }
.dos-end nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: #d9dbd5;
  text-decoration: underline;
  text-underline-offset: 5px;
  text-decoration-color: #ffffff4d;
}
.dos-end nav a:hover,
.dos-end nav a:focus-visible { text-decoration-color: currentColor; }

body > .site-footer.page-footer {
  width: min(1080px, calc(100% - 96px));
  margin: 0 auto 48px;
}

.dossier :is(button, a, summary, input):focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 5px;
}

/* ---------- 窄屏 ---------- */
@media (max-width: 1000px) {
  .dos-mast {
    grid-template-columns: 1fr;
    grid-template-areas:
      "back"
      "intro"
      "visual"
      "proof"
      "chapters";
    padding-top: 112px;
  }
  .dos-visual { margin-top: 48px; }
  .dos-proof {
    grid-template-columns: 1fr;
    grid-template-areas: "label" "name" "facts" "cta";
  }
  .dos-cta { justify-content: flex-start; margin-top: 10px; }
  .dos-chapters {
    overflow-x: auto;
    grid-template-columns: repeat(var(--chapter-count, 5), minmax(150px, 1fr));
  }
  .section-head,
  .dos-statement,
  .dos-player,
  .dos-limits,
  .dos-overview-copy,
  .dos-gallery.is-wide-phone { grid-template-columns: 1fr; }
  .dos-statement .dos-numbered { margin-top: 8px; }
  .dos-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dos-facts div { border-bottom: 1px solid var(--line-dark); }
  .dos-facts div:nth-child(2n) { border-right: 0; }
  .dos-facts div:nth-child(2n + 1) { padding-left: 0; }
  .is-paper .dos-facts div,
  .is-stone .dos-facts div { border-bottom-color: var(--line-light); }
  .dos-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dos-templates { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dos-loop { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dos-loop li:nth-child(2)::after { content: "↓"; top: auto; bottom: -22px; right: 50%; transform: none; }
  .dos-timeline li { grid-template-columns: 110px 1fr; }
  .dos-timeline li > p { grid-column: 2; }
  .dos-map { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .dos-map a:nth-child(2n) { border-right: 0; }
  .dos-map a { border-bottom: 1px solid var(--line-dark); }
}

@media (max-width: 720px) {
  .dossier { --edge: 24px; }
  .dos-mast { padding-top: 84px; background-size: 100% 80px, 25% 100%, auto; }
  .dos-mast > .project-back { margin-bottom: 34px; }
  .dos-intro h1 { font-size: 52px; line-height: 1; }
  .dos-summary { margin-top: 26px; font-size: 15px; }
  .dos-proof > strong { font-size: 24px; }
  .dos-button { width: 100%; }
  .dos-chapters { margin-right: -24px; margin-left: -24px; grid-template-columns: repeat(var(--chapter-count, 5), minmax(128px, 1fr)); }
  .dos-chapters a { min-height: 80px; }
  .dos-section { padding-top: 92px; padding-bottom: 80px; }
  .section-label { top: 28px; }
  .section-head { gap: 26px; margin-bottom: 48px; }
  .section-head h2,
  .dos-statement h2 { font-size: 36px; line-height: 1.08; }
  .dos-lead { margin-top: 28px; font-size: 15px; }
  .dos-gallery { grid-template-columns: 1fr; gap: 32px; }
  .dos-cards { grid-template-columns: 1fr; }
  .dos-cards > li { min-height: 0; }
  .dos-steps button { grid-template-columns: 44px 1fr 28px; gap: 16px; }
  .dos-steps button strong { font-size: 22px; }
  .dos-steps li > div { padding-left: 60px; }
  .dos-timeline li { grid-template-columns: 1fr; gap: 8px; }
  .dos-timeline li > p { grid-column: auto; }
  .lifegrid-controls { grid-template-columns: 1fr; }
  .dos-templates { gap: 28px 14px; }
  .dos-anatomy-bar.is-rhythm span { padding: 0 2px; font-size: 10px; }
  .dos-loop { grid-template-columns: 1fr; gap: 14px; }
  .dos-loop li { min-height: 0; }
  .dos-loop li::after { content: "↓"; top: auto; bottom: -19px; right: 50%; transform: none; }
  .dos-ladder span { width: calc(52% + var(--rank) * 6.8%); }
  .lifegrid-actions .dos-button { flex: 1 1 140px; min-width: 0; }
  .lifegrid-stage { padding: 14px; }
  .lifegrid-readout strong { font-size: 48px; }
  .dos-formula div { grid-template-columns: 1fr; gap: 6px; }
  .dos-compare > div { grid-template-columns: 64px minmax(0, 1fr) minmax(0, 1fr); gap: 14px; font-size: 13px; }
  .dos-compare .compare-head span { font-size: 15px; }
  .dos-facts dd b { font-size: 32px; }
  .dos-limits { gap: 26px; margin-top: 64px; }
  .dos-limits h3 { font-size: 30px; }
  .dos-overview-copy h2 { font-size: 40px; line-height: 1.04; }
  .dos-map { grid-template-columns: 1fr; }
  .dos-map a { min-height: 76px; border-right: 0; }
  .dos-cabinet .cabinet-start { left: 12px; bottom: 12px; width: auto; min-width: 0; min-height: 44px; gap: 18px; font-size: 13px; }
  .dos-end { padding-top: 28px; padding-bottom: 28px; align-items: flex-start; flex-direction: column; }
  body > .site-footer.page-footer { width: calc(100% - 48px); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}