/* ─────────────────────────────────────────────────────────────
   个人档案 · 视觉系统
   纸张、墨色、档案红。所有颜色与字号都从下面的变量出发。
   ───────────────────────────────────────────────────────────── */

:root {
  /* 种子 token：所有颜色只在这一层出现 */
  --seed-bg: #f7f3ea;
  --seed-surface: #fffdf8;
  --seed-fg: #1e1c18;
  --seed-muted: #6e6659;
  --seed-accent: #8e2f2f;
  --seed-accent-strong: #752323;
  --seed-rule: #d7cfc1;
  --seed-rule-strong: #c3b8a6;
  --seed-density: 1;
  --seed-type-scale: 1;
  --seed-radius: 2px;
  --seed-measure: 36rem;

  /* 语义色 */
  --color-bg-page: var(--seed-bg);
  --color-bg-surface: var(--seed-surface);
  --color-text-primary: var(--seed-fg);
  --color-text-secondary: var(--seed-muted);
  --color-accent: var(--seed-accent);
  --color-accent-strong: var(--seed-accent-strong);
  --color-rule: var(--seed-rule);
  --color-rule-strong: var(--seed-rule-strong);
  --color-focus: var(--seed-accent);

  /* 字体 */
  --font-display: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", "SimSun", Georgia, serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  /* 尺度 */
  --wrap: 1180px;
  --measure: var(--seed-measure);
  --gutter: clamp(20px, 5vw, 64px);
  --header-h: 64px;
  --section-space: calc(clamp(56px, 8vw, 104px) * var(--seed-density));
  --radius: var(--seed-radius);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --seed-bg: #151515;
  --seed-surface: #1c1b18;
  --seed-fg: #ede7db;
  --seed-muted: #a79e90;
  --seed-accent: #d0715f;
  --seed-accent-strong: #e08c7b;
  --seed-rule: rgba(255, 255, 255, 0.12);
  --seed-rule-strong: rgba(255, 255, 255, 0.24);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-bg-page);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: calc(17px * var(--seed-type-scale));
  font-weight: 400;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--color-accent);
}

button {
  font: inherit;
}

svg {
  display: block;
}

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

::selection {
  background: var(--color-accent);
  color: var(--color-bg-page);
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -100px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--color-bg-page);
  border: 1px solid var(--color-text-primary);
  font-size: 14px;
  text-decoration: none;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 12px;
}

/* ── 页头 ────────────────────────────────────────────────── */

.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-bg-page);
  border-bottom: 1px solid var(--color-rule);
}

.masthead__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: var(--wrap);
  height: var(--header-h);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand:hover {
  color: inherit;
}

.brand__mark {
  width: 20px;
  height: 24px;
  flex: none;
  color: var(--color-accent);
}

.brand__zh {
  display: block;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.2;
}

.brand__en {
  display: block;
  margin-top: 1px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  line-height: 1.4;
  color: var(--color-text-secondary);
}

.masthead__tools {
  display: flex;
  align-items: center;
  gap: 20px;
}

.masthead__meta {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--color-text-secondary);
}

.theme-toggle {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  color: var(--color-text-primary);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.theme-toggle:hover {
  border-color: var(--color-text-primary);
}

.theme-toggle svg {
  width: 17px;
  height: 17px;
}

.theme-toggle .icon-sun {
  display: none;
}

html[data-theme="dark"] .theme-toggle .icon-sun {
  display: block;
}

html[data-theme="dark"] .theme-toggle .icon-moon {
  display: none;
}

/* ── 首屏 ────────────────────────────────────────────────── */

.hero {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(52px, 8vw, 104px) var(--gutter) clamp(36px, 5vw, 64px);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(272px, 0.75fr);
  gap: clamp(32px, 6vw, 80px);
  align-items: end;
}

.hero__lead {
  min-width: 0;
  animation: rise 0.6s ease both;
}

.eyebrow {
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--color-accent);
}

.hero__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(56px, 9.5vw, 112px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: 0.03em;
  text-wrap: balance;
}

.hero__tagline {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.2vw, 26px);
  line-height: 1.5;
  letter-spacing: 0.01em;
}

.hero__intro {
  max-width: 34em;
  margin: 0;
  font-size: 16px;
  color: var(--color-text-secondary);
}

.catalog {
  padding-top: 14px;
  border-top: 1px solid var(--color-text-primary);
  animation: rise 0.7s 0.08s ease both;
}

.catalog__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.catalog__label {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--color-text-secondary);
}

.stamp {
  display: grid;
  grid-template-columns: 1fr 1fr;
  place-items: center;
  width: 66px;
  height: 66px;
  padding: 6px;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
  box-shadow: inset 0 0 0 3px var(--color-bg-page), inset 0 0 0 4px var(--color-accent);
  font-family: var(--font-display);
  font-size: 13px;
  line-height: 1;
  letter-spacing: 0.08em;
  transform: rotate(-4deg);
}

.catalog__row {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--color-rule);
}

.catalog__row:last-child {
  border-bottom: 0;
}

.catalog__row dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--color-text-secondary);
  padding-top: 2px;
}

.catalog__row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  text-align: right;
}

/* ── 板块索引 ────────────────────────────────────────────── */

.index {
  position: sticky;
  top: var(--header-h);
  z-index: 40;
  background: var(--color-bg-page);
  border-top: 1px solid var(--color-rule);
  border-bottom: 1px solid var(--color-rule);
}

.index__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
  overflow-x: auto;
  scrollbar-width: none;
}

.index__inner::-webkit-scrollbar {
  display: none;
}

.index__list {
  display: flex;
  min-width: max-content;
  margin: 0;
  padding: 0;
  list-style: none;
}

.index__list a {
  display: flex;
  align-items: baseline;
  gap: 9px;
  margin-right: 30px;
  padding: 14px 0 12px;
  font-size: 14px;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.index__list a:hover {
  color: var(--color-accent);
}

.index__list a[aria-current="true"] {
  color: var(--color-text-primary);
  border-bottom-color: var(--color-accent);
}

.index__num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--color-accent);
}

/* ── 档案正文 ────────────────────────────────────────────── */

.sections {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.record {
  display: grid;
  grid-template-columns: minmax(150px, 0.3fr) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 72px);
  padding: var(--section-space) 0;
  border-bottom: 1px solid var(--color-rule);
  scroll-margin-top: calc(var(--header-h) + 64px);
}

.record__head {
  position: sticky;
  top: calc(var(--header-h) + 84px);
  align-self: start;
}

.record__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--color-accent);
}

.record__kicker {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--color-text-secondary);
}

.record__title {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 3.4vw, 42px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: 0.02em;
}

.record__body {
  min-width: 0;
  max-width: var(--measure);
}

.record__body p {
  margin: 0 0 18px;
}

.record__body p:last-child {
  margin-bottom: 0;
}

.lead {
  font-family: var(--font-display);
  font-size: clamp(19px, 2vw, 22px);
  line-height: 1.65;
  letter-spacing: 0.01em;
}

.section-intro {
  margin: 0 0 26px;
  color: var(--color-text-secondary);
  font-size: 15px;
}

/* 时间线 */

.timeline {
  margin: 0 0 0 4px;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--color-rule);
}

.timeline li {
  position: relative;
  padding: 0 0 30px 28px;
}

.timeline li:last-child {
  padding-bottom: 0;
}

.timeline li::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 9px;
  width: 7px;
  height: 7px;
  background: var(--color-bg-page);
  border: 1px solid var(--color-accent);
  border-radius: 50%;
}

.timeline time {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
}

.timeline h3 {
  margin: 0 0 5px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.timeline p {
  max-width: 34em;
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

/* 条目清单 */

.entries {
  margin: 0;
  padding: 0;
  list-style: none;
}

.entry {
  padding: 22px 0;
  border-top: 1px solid var(--color-rule);
}

.entry:last-child {
  border-bottom: 1px solid var(--color-rule);
}

.entry__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 5px;
}

.entry h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.entry__meta {
  flex: none;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--color-text-secondary);
}

.entry p {
  max-width: 36em;
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

/* 链接列表 */

.links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.link-row {
  border-top: 1px solid var(--color-rule);
}

.link-row:last-child {
  border-bottom: 1px solid var(--color-rule);
}

.link-row__inner {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) auto;
  gap: 4px 16px;
  align-items: baseline;
  padding: 17px 0;
}

.link-row__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--color-text-secondary);
}

.link-row__value {
  font-size: 17px;
  overflow-wrap: anywhere;
}

.link-row__value a {
  text-decoration: none;
  border-bottom: 1px solid var(--color-rule-strong);
  padding-bottom: 1px;
}

.link-row__value a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.link-row__note {
  grid-column: 2 / -1;
  margin: 3px 0 0;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.copy-btn {
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--color-text-secondary);
  background: none;
  border: 1px solid var(--color-rule-strong);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.copy-btn:hover {
  color: var(--color-text-primary);
  border-color: var(--color-text-primary);
}

.copy-btn[data-copied="true"] {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.empty {
  margin: 0;
  padding: 8px 0;
  color: var(--color-text-secondary);
}

/* ── 页脚 ────────────────────────────────────────────────── */

.footer {
  border-top: 1px solid var(--color-rule);
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 24px;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 28px var(--gutter) 40px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
}

.footer__inner p {
  margin: 0;
}

.footer a {
  text-decoration: none;
  border-bottom: 1px solid var(--color-rule-strong);
}

.footer a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* ── 动效 ────────────────────────────────────────────────── */

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── 响应式 ──────────────────────────────────────────────── */

@media (max-width: 900px) {
  .hero__grid {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .hero__title {
    font-size: clamp(52px, 14vw, 84px);
  }

  .catalog {
    max-width: 420px;
  }

  .record {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .record__head {
    position: static;
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0 12px;
  }

  .record__num {
    font-size: 11px;
  }

  .record__kicker {
    margin: 0;
  }

  .record__title {
    flex-basis: 100%;
    margin: 4px 0 0;
    font-size: 30px;
  }
}

@media (max-width: 640px) {
  :root {
    --header-h: 56px;
  }

  .masthead__meta {
    display: none;
  }

  .brand__en {
    display: none;
  }

  .hero {
    padding-top: 44px;
  }

  .stamp {
    width: 58px;
    height: 58px;
    font-size: 12px;
  }

  .record {
    padding: 48px 0;
  }

  .link-row__inner {
    grid-template-columns: 1fr auto;
    gap: 6px 12px;
  }

  .link-row__label {
    grid-column: 1 / -1;
  }

  .link-row__note {
    grid-column: 1 / -1;
  }

  .footer__inner {
    flex-direction: column;
    gap: 8px;
  }
}

@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;
  }
}

/* ── 打印 ────────────────────────────────────────────────── */

@media print {
  html {
    --seed-bg: #ffffff;
    --seed-fg: #000000;
  }

  .masthead,
  .index,
  .theme-toggle,
  .copy-btn,
  .skip-link {
    display: none !important;
  }

  body {
    background: var(--seed-bg);
    color: var(--seed-fg);
    font-size: 11pt;
  }

  .hero {
    padding: 0 0 24pt;
  }

  .catalog,
  .record {
    break-inside: avoid;
  }

  .record {
    display: block;
    padding: 18pt 0;
  }

  .record__head {
    position: static;
    margin-bottom: 8pt;
  }

  a {
    text-decoration: none;
  }
}