:root {
  --color-surface: #fafafa;
  --color-surface-alt: #f0f0f0;
  --color-surface-deep: #e2e2e2;
  --color-ink: #363230;
  --color-ink-soft: #635d59;
  --color-ink-muted: #807975;
  --color-line: #d7d6d6;
  --color-primary: #c55407;
  --color-primary-ink: #ffffff;
  --color-primary-soft: #f3e3d8;
  --color-accent: #0e77c8;
  --color-accent-ink: #ffffff;
  --color-highlight: #d0e2f1;
  --color-focus: #0373c9;
  --color-contrast-surface: #2d1e13;
  --color-contrast-ink: #e7e5e4;
  --color-contrast-line: #564a41;
  --color-contrast-accent: #118eee;
  --overlay-scrim: linear-gradient(180deg, rgba(45, 30, 19, 0.35) 0%, rgba(45, 30, 19, 0.72) 55%, rgba(45, 30, 19, 0.92) 100%);
  --font-heading: "Source Han Sans SC", "Noto Sans SC", SimHei, "Microsoft YaHei", sans-serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-mono: ui-monospace, Menlo, Consolas, monospace;
  --text-xs: 10.4px;
  --text-sm: 13.9px;
  --text-base: 16px;
  --text-lg: 21.3px;
  --text-xl: 28.4px;
  --text-2xl: 37.9px;
  --text-3xl: 50.5px;
  --text-4xl: 67.3px;
  --text-display: clamp(61px, 12.5vw, 160px);
  --text-figure: clamp(51px, 9.0vw, 115px);
  --weight-heading: 890;
  --weight-body: 400;
  --leading-body: 1.61;
  --leading-heading: 1.28;
  --tracking-heading: -0.028em;
  --radius-sm: 4px;
  --radius-md: 4px;
  --radius-lg: 5px;
  --radius-pill: 5px;
  --border-thin: 2px;
  --border-thick: 3px;
  --shadow-1: 4px 4px 0 #363230;
  --shadow-2: 8px 8px 0 #363230;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-6: 48px;
  --space-8: 64px;
  --container: 1280px;
  --measure: 68ch;
  --gutter: 16px;
  --section-y: 78px;
  --section-y-lg: 109px;
}

/* =========================================================
   半岛体体育综合 · 共享样式 /assets/site.css
   运动能量：橙蓝大块分区、斜切边界、编号刻度、硬投影
   ========================================================= */

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-body);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
table { border-collapse: collapse; }
a { color: inherit; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 2px; }

/* ---------- 中文排版基准 ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  line-height: var(--leading-heading);
}
p { max-width: var(--measure); }
strong, b { font-weight: 800; }
.num, time, code { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
#main-content { display: block; scroll-margin-top: 140px; }

/* ---------- 容器与节奏 ---------- */
.wrap {
  width: 100%;
  max-width: calc(var(--container) + var(--space-3) * 2);
  margin-inline: auto;
  padding-inline: var(--space-3);
}
.wrap--wide { max-width: calc(var(--container) + var(--space-8) * 2); }
.section { padding-block: var(--section-y); }
.section--lg { padding-block: var(--section-y-lg); }
.section--tight { padding-block: var(--space-4); }
.section--alt { background: var(--color-surface-alt); }
.section--deep { background: var(--color-contrast-surface); color: var(--color-contrast-ink); }
.section--deep p { color: color-mix(in srgb, var(--color-contrast-ink) 84%, var(--color-contrast-surface)); }
.stack > * + * { margin-top: var(--space-2); }
.stack-lg > * + * { margin-top: var(--space-4); }
.cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2); }

/* ---------- 网格 ---------- */
.grid { display: grid; gap: var(--gutter); }
.grid--main { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.grid--triple { grid-template-columns: minmax(0, 5fr) minmax(0, 4fr) minmax(0, 3fr); }
.grid--duo { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--cols-12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
@media (max-width: 900px) {
  .grid--main, .grid--triple, .grid--duo, .grid--cols-12 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: absolute;
  left: var(--space-2);
  top: -120px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--text-sm);
  text-decoration: none;
  transition: top .16s ease;
}
.skip-link:focus { top: var(--space-2); }

/* ---------- 左侧战术刻度轨 ---------- */
.site-rail { display: none; }

@media (min-width: 1440px) {
  body { padding-left: 46px; }
  .site-rail {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 46px;
    z-index: 40;
    background: var(--color-contrast-surface);
    border-right: var(--border-thin) solid var(--color-contrast-line);
  }
  .site-rail__ticks {
    position: absolute;
    inset: 0;
    background-image: repeating-linear-gradient(0deg, var(--color-contrast-line) 0 2px, transparent 2px 26px);
  }
  .site-rail__meter {
    position: absolute;
    left: 0;
    top: 0;
    width: 8px;
    height: 0;
    background: var(--color-contrast-accent);
    transition: height .12s linear;
  }
}

/* ---------- 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 70;
  background: var(--color-surface);
  border-bottom: var(--border-thick) solid var(--color-ink);
}

.season-rail {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  overflow: hidden;
  max-height: 72px;
  transition: max-height .28s ease, opacity .28s ease;
}
.site-header[data-scrolled] .season-rail { max-height: 0; opacity: 0; }
.season-rail__inner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-block: 10px;
}
.season-rail__label {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .22em;
  color: var(--color-contrast-accent);
}
.season-rail__list { display: flex; flex: 1; overflow-x: auto; }
.season-node {
  flex: none;
  appearance: none;
  border: 0;
  border-left: 2px solid var(--color-contrast-line);
  background: transparent;
  color: var(--color-contrast-ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: .06em;
  padding: 6px 14px;
  cursor: pointer;
  transition: background .16s ease, color .16s ease;
}
.season-rail__list li:first-child .season-node { border-left: 0; }
.season-node:hover { background: color-mix(in srgb, var(--color-contrast-accent) 24%, transparent); }
.season-node[aria-pressed="true"] {
  background: var(--color-contrast-accent);
  color: var(--color-contrast-surface);
}
.season-rail__now {
  flex: none;
  font-size: var(--text-xs);
  letter-spacing: .1em;
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, var(--color-contrast-surface));
}
.season-rail__now b { font-family: var(--font-mono); color: var(--color-contrast-accent); }

.header-main__inner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-block: 12px;
}

.brand { display: inline-flex; align-items: center; gap: 10px; flex: none; text-decoration: none; }
.brand__mark {
  position: relative;
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 66%);
}
.brand__mark::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 14px;
  background: var(--color-accent);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
}
.brand__text { display: flex; flex-direction: column; }
.brand__name {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  letter-spacing: var(--tracking-heading);
  line-height: 1.06;
}
.brand__sub {
  font-size: var(--text-xs);
  letter-spacing: .18em;
  color: var(--color-ink-muted);
}

.site-nav { margin-left: auto; }
.site-nav__list { display: flex; align-items: stretch; counter-reset: navitem; }
.site-nav__list li { display: flex; }
.site-nav__list a {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: -0.01em;
  color: var(--color-ink);
  border-left: var(--border-thin) solid var(--color-line);
  transition: background .16s ease, color .16s ease, box-shadow .16s ease;
}
.site-nav__list a::before {
  counter-increment: navitem;
  content: counter(navitem, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .04em;
  color: var(--color-ink-muted);
}
.site-nav__list a:hover { background: var(--color-surface-alt); }
.site-nav__list a[aria-current="page"] {
  background: var(--color-highlight);
  color: var(--color-ink);
  box-shadow: inset 0 0 0 2px var(--color-accent);
}
.site-nav__list a[aria-current="page"]::before { color: var(--color-accent); }

.header-cta {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  text-decoration: none;
  background: var(--color-primary);
  color: var(--color-primary-ink);
  border: var(--border-thin) solid var(--color-ink);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--text-sm);
  letter-spacing: -0.01em;
  box-shadow: var(--shadow-1);
  transition: transform .12s ease, box-shadow .12s ease;
}
.header-cta::after { content: "→"; font-family: var(--font-mono); }
.header-cta:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-2); }
.header-cta:active { transform: translate(2px, 2px); box-shadow: none; }

.nav-toggle {
  display: none;
  margin-left: auto;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  cursor: pointer;
  background: var(--color-accent);
  color: var(--color-accent-ink);
  border: var(--border-thin) solid var(--color-ink);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--text-sm);
  box-shadow: var(--shadow-1);
}
.nav-toggle__bars { display: block; width: 18px; }
.nav-toggle__bars i { display: block; height: 2px; margin: 3px 0; background: currentColor; }
.nav-toggle[aria-expanded="true"] { background: var(--color-primary); color: var(--color-primary-ink); }

.header-edge {
  display: block;
  height: 10px;
  background: var(--color-primary);
  clip-path: polygon(0 0, 100% 0, 86% 100%, 0 100%);
}

@media (max-width: 1120px) {
  .brand__sub { display: none; }
  .site-nav__list a { padding: 10px 10px; }
  .header-cta { padding: 10px 14px; }
}
@media (max-width: 900px) {
  .header-main__inner { flex-wrap: wrap; row-gap: var(--space-2); }
  .nav-toggle { display: inline-flex; }
  .site-nav { display: none; order: 3; flex-basis: 100%; margin-left: 0; }
  .site-nav[data-open] { display: block; }
  .site-nav__list { flex-direction: column; border-top: var(--border-thin) solid var(--color-ink); }
  .site-nav__list li { border-bottom: 2px solid var(--color-line); }
  .site-nav__list a {
    padding: 14px 12px;
    border-left: 0;
    font-size: var(--text-base);
  }
  .site-nav__list a[aria-current="page"] { box-shadow: inset 4px 0 0 var(--color-accent); }
  .header-cta { order: 4; flex-basis: 100%; justify-content: center; }
  .season-rail__now { display: none; }
  .header-edge { clip-path: polygon(0 0, 100% 0, 92% 100%, 0 100%); }
}
@media (max-width: 560px) {
  .brand__mark { width: 30px; height: 30px; }
  .brand__name { font-size: var(--text-base); }
  .season-node { padding: 6px 10px; font-size: var(--text-xs); }
}

/* ---------- 页脚 ---------- */
.site-footer {
  margin-top: var(--section-y);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}
.footer-edge {
  height: 12px;
  background: var(--color-accent);
  clip-path: polygon(14% 100%, 100% 0, 100% 100%, 0 100%);
}
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-4);
  padding-block: var(--space-3);
  font-size: var(--text-sm);
}
.site-footer__brand {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-base);
  letter-spacing: var(--tracking-heading);
  max-width: none;
}
.site-footer__brand span {
  display: block;
  margin-top: 2px;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--text-xs);
  letter-spacing: .14em;
  color: color-mix(in srgb, var(--color-contrast-ink) 56%, var(--color-contrast-surface));
}
.site-footer__contact {
  max-width: none;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .04em;
  color: color-mix(in srgb, var(--color-contrast-ink) 70%, var(--color-contrast-surface));
}
.site-footer__contact span + span::before {
  content: "·";
  margin-inline: 8px;
  color: var(--color-contrast-line);
}
.site-footer__links { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-left: auto; }
.site-footer__links a {
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid var(--color-contrast-line);
  transition: color .16s ease, border-color .16s ease;
}
.site-footer__links a:hover { color: var(--color-contrast-accent); border-color: var(--color-contrast-accent); }
.site-footer__meta {
  max-width: none;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .06em;
  color: color-mix(in srgb, var(--color-contrast-ink) 56%, var(--color-contrast-surface));
}
@media (max-width: 860px) {
  .site-footer__links { margin-left: 0; flex-basis: 100%; gap: var(--space-2); }
  .site-footer__meta { flex-basis: 100%; }
}

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed;
  right: var(--space-3);
  bottom: var(--space-3);
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  cursor: pointer;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--text-sm);
  letter-spacing: .04em;
  box-shadow: var(--shadow-2);
  transition: border-color .16s ease, transform .12s ease;
}
.back-top::before { content: "↑"; font-family: var(--font-mono); color: var(--color-contrast-accent); }
.back-top:hover { border-color: var(--color-contrast-accent); transform: translateY(-2px); }
.back-top[hidden] { display: none; }

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 14px 22px;
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--text-sm);
  letter-spacing: -0.01em;
  color: var(--color-ink);
  background: var(--color-surface);
  border: var(--border-thick) solid var(--color-ink);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-1);
  cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease, background .16s ease;
}
.btn:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-2); }
.btn:active { transform: translate(2px, 2px); box-shadow: none; }
.btn--primary { background: var(--color-primary); color: var(--color-primary-ink); }
.btn--accent { background: var(--color-accent); color: var(--color-accent-ink); }
.btn--deep {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-color: var(--color-contrast-line);
}
.btn--ghost { background: transparent; box-shadow: none; }
.btn--ghost:hover { background: var(--color-primary-soft); box-shadow: none; transform: none; }

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding-block: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: .08em;
  color: var(--color-ink-muted);
}
.breadcrumb a { text-decoration: none; }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb li:not(:last-child)::after { content: "/"; margin-left: 6px; color: var(--color-line); }

/* ---------- 内页页头 ---------- */
.page-head { padding-block: var(--space-6) var(--space-4); }
.page-head__title { font-size: clamp(var(--text-2xl), 5vw, var(--text-4xl)); }
.page-head__lead {
  margin-top: var(--space-2);
  font-size: var(--text-lg);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

/* ---------- 标题与分隔语言 ---------- */
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .24em;
  color: var(--color-ink-muted);
}
.h-sec { font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl)); }

.rule-index {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}
.rule-index__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: .14em;
  color: var(--color-primary);
}
.rule-index__ticks {
  flex: 1;
  height: 10px;
  background-image: repeating-linear-gradient(90deg, var(--color-line) 0 2px, transparent 2px 14px);
}
.section--deep .rule-index__num { color: var(--color-contrast-accent); }
.section--deep .rule-index__ticks {
  background-image: repeating-linear-gradient(90deg, var(--color-contrast-line) 0 2px, transparent 2px 14px);
}

.pullquote {
  margin-block: var(--space-4);
  padding-left: var(--space-4);
  border-left: var(--border-thick) solid var(--color-accent);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-lg);
  letter-spacing: -0.012em;
  max-width: var(--measure);
}
.pullquote::before {
  content: "“";
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  line-height: .8;
  color: var(--color-primary);
}

/* ---------- 正文容器 ---------- */
.prose { max-width: var(--measure); }
.prose > * + * { margin-top: var(--space-3); }
.prose h2 { font-size: var(--text-2xl); margin-top: var(--space-6); }
.prose h3 { font-size: var(--text-xl); margin-top: var(--space-4); }
.prose p { max-width: none; }
.prose a { color: var(--color-accent); text-underline-offset: 3px; }
.prose ul, .prose ol { padding-left: 0; }
.prose li + li { margin-top: 8px; }
.prose ul li { position: relative; padding-left: var(--space-3); }
.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .6em;
  width: 9px;
  height: 9px;
  background: var(--color-primary);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 68%);
}
.prose ol { counter-reset: proseitem; }
.prose ol li { position: relative; padding-left: var(--space-3); }
.prose ol li::before {
  counter-increment: proseitem;
  content: counter(proseitem, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .18em;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

/* ---------- 数据卡 ---------- */
.stat {
  position: relative;
  padding: var(--space-3);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
}
.stat__label {
  display: block;
  margin-bottom: 6px;
  font-size: var(--text-xs);
  letter-spacing: .16em;
  color: var(--color-ink-muted);
}
.stat__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-3xl);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}
.stat__num em { font-style: normal; margin-left: 4px; font-size: var(--text-lg); color: var(--color-ink-muted); }
.stat__note { display: block; margin-top: 6px; font-size: var(--text-sm); color: var(--color-ink-soft); }
.stat--primary .stat__num { color: var(--color-primary); }
.stat--accent .stat__num { color: var(--color-accent); }
.stat--highlight { background: var(--color-highlight); border-color: var(--color-accent); }
.stat--deep {
  background: var(--color-contrast-surface);
  border-color: var(--color-contrast-line);
  box-shadow: none;
  color: var(--color-contrast-ink);
}
.stat--deep .stat__num { color: var(--color-contrast-accent); }
.stat--deep .stat__label,
.stat--deep .stat__note { color: color-mix(in srgb, var(--color-contrast-ink) 64%, var(--color-contrast-surface)); }

.stat-hero__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-figure);
  line-height: .92;
  letter-spacing: -0.03em;
  color: var(--color-accent);
}
.stat-hero__unit { font-size: var(--text-lg); color: var(--color-ink-muted); margin-left: 6px; }
.fig-mark { background: var(--color-highlight); padding-inline: .12em; }

/* ---------- 面板与斜切 ---------- */
.panel { padding: var(--space-4); border-radius: var(--radius-md); }
.panel--primary { background: var(--color-primary); color: var(--color-primary-ink); }
.panel--accent { background: var(--color-accent); color: var(--color-accent-ink); }
.panel--soft { background: var(--color-primary-soft); color: var(--color-ink); }
.panel--line { border: var(--border-thin) solid var(--color-line); background: var(--color-surface); box-shadow: var(--shadow-1); }
.panel--deep {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border: var(--border-thin) solid var(--color-contrast-line);
}
.panel--deep .stat__label { color: color-mix(in srgb, var(--color-contrast-ink) 64%, var(--color-contrast-surface)); }
.slant { clip-path: polygon(0 2.5%, 100% 0, 100% 97.5%, 0 100%); border-radius: 0; }

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .08em;
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  color: var(--color-ink-soft);
}
.tag--primary { background: var(--color-primary-soft); border-color: var(--color-primary); color: var(--color-primary); }
.tag--accent { background: var(--color-highlight); border-color: var(--color-accent); color: var(--color-accent); }
.tag--deep {
  background: transparent;
  border-color: var(--color-contrast-line);
  color: var(--color-contrast-ink);
}

/* ---------- 表格 ---------- */
.table-wrap {
  overflow-x: auto;
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
}
.table { width: 100%; min-width: 520px; font-size: var(--text-sm); }
.table th {
  padding: 12px;
  text-align: left;
  font-family: var(--font-heading);
  font-weight: 800;
  letter-spacing: -0.01em;
  background: var(--color-surface-alt);
  border-bottom: var(--border-thick) solid var(--color-ink);
}
.table td { padding: 12px; border-bottom: 2px solid var(--color-line); vertical-align: top; }
.table tbody tr:nth-child(even) td { background: var(--color-surface-deep); }
.table .num { text-align: right; font-family: var(--font-mono); }
.table caption {
  caption-side: top;
  padding: 10px 12px;
  text-align: left;
  font-size: var(--text-xs);
  letter-spacing: .08em;
  color: var(--color-ink-muted);
}

/* ---------- 口径切换 ---------- */
.scope-tabs {
  display: inline-flex;
  overflow: hidden;
  background: var(--color-surface);
  border: var(--border-thick) solid var(--color-ink);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-1);
}
.scope-tabs button {
  appearance: none;
  border: 0;
  border-left: var(--border-thin) solid var(--color-ink);
  background: transparent;
  padding: 10px 18px;
  cursor: pointer;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--text-sm);
  letter-spacing: -0.01em;
  transition: background .16s ease, color .16s ease;
}
.scope-tabs button:first-child { border-left: 0; }
.scope-tabs button:hover { background: var(--color-surface-alt); }
.scope-tabs button[aria-pressed="true"] { background: var(--color-accent); color: var(--color-accent-ink); }

/* ---------- 目录 ---------- */
.toc {
  padding: var(--space-3);
  background: var(--color-surface-alt);
  border-left: var(--border-thick) solid var(--color-accent);
  border-radius: var(--radius-sm);
}
.toc__title {
  margin-bottom: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: .2em;
  color: var(--color-ink-muted);
}
.toc ul { counter-reset: tocitem; }
.toc a {
  display: block;
  padding: 8px 10px;
  text-decoration: none;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  border-radius: var(--radius-sm);
  transition: background .16s ease, color .16s ease;
}
.toc a::before {
  counter-increment: tocitem;
  content: counter(tocitem, decimal-leading-zero);
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}
.toc a:hover { background: var(--color-surface-deep); color: var(--color-ink); }
.toc a[aria-current="true"] {
  background: var(--color-highlight);
  color: var(--color-ink);
  box-shadow: inset 3px 0 0 var(--color-accent);
}
.toc--sticky { position: sticky; top: 92px; align-self: start; }

/* ---------- 图片容器 ---------- */
.figure-frame {
  position: relative;
  overflow: hidden;
  background: var(--color-surface-deep);
  border: var(--border-thick) solid var(--color-ink);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
}
.figure-frame img { width: 100%; height: 100%; object-fit: cover; }
.figure-frame--wide { aspect-ratio: 16 / 9; }
.figure-frame--tall { aspect-ratio: 3 / 4; }
.figure-frame--slim { aspect-ratio: 1 / 2; }
.figure-frame--square { aspect-ratio: 1 / 1; }
.figure-frame--band { aspect-ratio: 21 / 9; }
.figure-frame--plain { border: 0; border-radius: 0; box-shadow: none; }
.figure-frame--slant {
  border: 0;
  border-radius: 0;
  box-shadow: none;
  clip-path: polygon(0 4%, 100% 0, 100% 100%, 0 96%);
}
.figure-frame__caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: var(--space-2) var(--space-3);
  background: var(--overlay-scrim);
  color: var(--color-contrast-ink);
  font-size: var(--text-xs);
  letter-spacing: .06em;
}

/* ---------- 动态偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}