/* ==========================================================================
   亚盈体育赛场 — 共享样式表 /assets/site.css
   设计定稿变量（不得改动）
   ========================================================================== */
:root {
  --color-surface: #ffffff;
  --color-surface-alt: #f6f6f6;
  --color-surface-deep: #e9eaea;
  --color-ink: #464c53;
  --color-ink-soft: #6a727c;
  --color-ink-muted: #777e88;
  --color-line: #dedfe0;
  --color-primary: #4676b4;
  --color-primary-ink: #ffffff;
  --color-primary-soft: #e5ecf4;
  --color-accent: #dd138c;
  --color-accent-ink: #ffffff;
  --color-highlight: #f9d5ea;
  --color-focus: #df0689;
  --color-contrast-surface: #1a1f26;
  --color-contrast-ink: #e4e5e7;
  --color-contrast-line: #464b50;
  --color-contrast-accent: #ee39a6;
  --overlay-scrim: linear-gradient(180deg, rgba(26, 31, 38, 0.35) 0%, rgba(26, 31, 38, 0.72) 55%, rgba(26, 31, 38, 0.92) 100%);
  --font-heading: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-body: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --text-xs: 12.2px;
  --text-sm: 15.2px;
  --text-base: 17px;
  --text-lg: 21.2px;
  --text-xl: 26.6px;
  --text-2xl: 33.2px;
  --text-3xl: 41.5px;
  --text-4xl: 51.9px;
  --text-display: clamp(34px, 5.0vw, 64px);
  --text-figure: clamp(28px, 3.6vw, 46px);
  --weight-heading: 698;
  --weight-body: 400;
  --leading-body: 1.75;
  --leading-heading: 1.23;
  --tracking-heading: 0.005em;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 7px;
  --radius-pill: 7px;
  --border-thin: 1px;
  --border-thick: 1px;
  --shadow-1: 0 1px 0 rgba(70, 76, 83, 0.12);
  --shadow-2: 0 2px 0 rgba(70, 76, 83, 0.18);
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-6: 48px;
  --space-8: 64px;
  --container: 1100px;
  --measure: 73ch;
  --gutter: 32px;
  --section-y: 81px;
  --section-y-lg: 113px;
}

/* ==========================================================================
   1. 重置
   ========================================================================== */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background-color: 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;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  text-wrap: balance;
}

h1 { font-size: var(--text-2xl); }
h2 { font-size: var(--text-xl); }
h3 { font-size: var(--text-lg); }
h4 { font-size: var(--text-base); }

p { margin: 0 0 var(--space-2); }
p:last-child { margin-bottom: 0; }

ul, ol { margin: 0; padding: 0; list-style: none; }

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.16s ease, background-color 0.16s ease, border-color 0.16s ease;
}

img, svg, video { display: block; max-width: 100%; }

button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }

::selection { background-color: var(--color-highlight); color: var(--color-ink); }

:focus { outline: 2px solid transparent; outline-offset: 2px; }
:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

#main-content { scroll-margin-top: 120px; }

/* ==========================================================================
   2. 布局骨架
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-2);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--space-4) var(--gutter);
}

.section { padding-block: var(--section-y); }
.section--lg { padding-block: var(--section-y-lg); }
.section--tight { padding-block: var(--space-6); }
.section--alt { background-color: var(--color-surface-alt); }
.section--deep {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}
.section--deep h1,
.section--deep h2,
.section--deep h3,
.section--deep h4 { color: var(--color-contrast-ink); }

.divider {
  display: block;
  height: var(--border-thin);
  border: 0;
  margin: 0;
  background-image: repeating-linear-gradient(
    90deg,
    var(--divider-color, var(--color-line)) 0 3px,
    transparent 3px 8px
  );
}
.section--deep .divider,
.panel--deep .divider { --divider-color: var(--color-contrast-line); }

/* ==========================================================================
   3. 头部
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background-color: var(--color-surface);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.skip-link {
  position: absolute;
  left: var(--space-2);
  top: -64px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 var(--space-2);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  transition: top 0.15s ease;
}
.skip-link:focus { top: 0; }

.header-top { background-color: var(--color-surface); }

.header-top__inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
  padding-block: var(--space-2) var(--space-1);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-right: auto;
  min-width: 0;
}
.brand__mark {
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-soft);
}
.brand__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: 0.02em;
  color: var(--color-ink);
  white-space: nowrap;
}
.brand__sub {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.03em;
  color: var(--color-ink-muted);
  padding-left: var(--space-1);
  border-left: var(--border-thin) dotted var(--color-line);
  white-space: nowrap;
}
.brand:hover .brand__name { color: var(--color-primary); }

.header-cutoff {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.02em;
  color: var(--color-ink-muted);
}
.cutoff__dot {
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: var(--space-1);
  min-height: 40px;
  padding: 0 var(--space-2);
  background-color: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink);
}
.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  width: 14px;
}
.nav-toggle__bars i {
  display: block;
  height: var(--border-thin);
  width: 14px;
  background-color: currentColor;
}
.nav-toggle__bars i:nth-child(2) { width: 9px; }
.site-header[data-open] .nav-toggle {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background-color: var(--color-primary-soft);
}

.header-rule {
  display: flex;
  align-items: center;
  gap: 6px;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-2);
  height: 12px;
}
.header-rule__line {
  flex: 1 1 auto;
  height: var(--border-thin);
  background-image: repeating-linear-gradient(
    90deg,
    var(--color-line) 0 2px,
    transparent 2px 6px
  );
}
.header-rule__tick {
  flex: none;
  width: var(--border-thin);
  height: 6px;
  background-color: var(--color-line);
}
.header-rule__tick--major {
  height: 10px;
  background-color: var(--color-primary);
}

.header-nav {
  background-color: var(--color-surface);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.header-nav__inner {
  display: flex;
  align-items: stretch;
  padding-inline: var(--space-2);
}

.nav-list {
  display: flex;
  align-items: stretch;
  gap: var(--space-1);
  flex: 1 1 auto;
  min-width: 0;
  overflow-x: auto;
  scrollbar-width: thin;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}
.nav-list > li { flex: none; scroll-snap-align: start; }

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: var(--space-2) 12px calc(var(--space-2) - 3px);
  border-bottom: 3px solid transparent;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-ink-soft);
  white-space: nowrap;
}
.nav-link__dot {
  flex: none;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-line);
  transition: background-color 0.16s ease, transform 0.16s ease;
}
.nav-link:hover {
  color: var(--color-ink);
  background-color: var(--color-surface-alt);
}
.nav-link:hover .nav-link__dot { background-color: var(--color-primary); }
.nav-link[aria-current="page"] {
  color: var(--color-primary);
  font-weight: 700;
  border-bottom-color: var(--color-primary);
}
.nav-link[aria-current="page"] .nav-link__dot {
  background-color: var(--color-primary);
  transform: scale(1.4);
}

.header-scale { display: none; }
.header-scale__fill {
  display: block;
  height: 100%;
  width: 0;
  background-color: var(--color-primary);
  transition: width 0.12s linear;
}

.scroll-meter {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}
.scroll-meter__fill {
  display: block;
  height: 100%;
  width: 0;
  background-color: var(--color-primary);
}

/* ==========================================================================
   4. 页脚
   ========================================================================== */
.site-footer {
  padding-block: var(--space-6) var(--space-4);
  background-color: var(--color-surface-alt);
  border-top: var(--border-thin) solid var(--color-line);
}

.footer-frame {
  position: relative;
  padding: var(--space-4) var(--space-4) var(--space-3);
  background-color: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
}

.footer-corner {
  position: absolute;
  width: 12px;
  height: 12px;
  pointer-events: none;
  border: var(--border-thin) solid var(--color-primary);
}
.footer-corner--tl {
  top: -1px; left: -1px;
  border-right: 0; border-bottom: 0;
  border-radius: var(--radius-md) 0 0 0;
}
.footer-corner--tr {
  top: -1px; right: -1px;
  border-left: 0; border-bottom: 0;
  border-radius: 0 var(--radius-md) 0 0;
}
.footer-corner--bl {
  bottom: -1px; left: -1px;
  border-right: 0; border-top: 0;
  border-radius: 0 0 0 var(--radius-md);
}
.footer-corner--br {
  bottom: -1px; right: -1px;
  border-left: 0; border-top: 0;
  border-radius: 0 0 var(--radius-md) 0;
}

.footer-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-3);
  padding-bottom: var(--space-3);
}
.footer-brand {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: 0.02em;
  color: var(--color-ink);
}
.footer-brand::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: var(--space-1);
  border-radius: 50%;
  background-color: var(--color-primary);
}
.footer-desc {
  margin: 0;
  flex: 1 1 320px;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.35fr);
  gap: var(--space-3) var(--space-4);
  padding-top: var(--space-3);
  border-top: var(--border-thin) dotted var(--color-line);
}

.footer-col__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
  text-transform: none;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px var(--space-2);
}
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  border-bottom: var(--border-thin) dotted transparent;
}
.footer-links a::before {
  content: "";
  flex: none;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-line);
  transition: background-color 0.16s ease;
}
.footer-links a:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-line);
}
.footer-links a:hover::before { background-color: var(--color-primary); }

.footer-contact { display: grid; gap: 6px; }
.footer-contact li {
  display: grid;
  grid-template-columns: 4.5em minmax(0, 1fr);
  gap: var(--space-1);
  font-size: var(--text-sm);
  align-items: baseline;
}
.footer-contact__k {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.04em;
}
.footer-contact__v { color: var(--color-ink); word-break: break-word; }

.footer-note {
  margin: var(--space-2) 0 0;
  font-size: var(--text-xs);
  line-height: 1.6;
  color: var(--color-ink-muted);
}

.footer-col--rhythm {
  padding-left: var(--space-3);
  border-left: var(--border-thin) dotted var(--color-line);
}
.footer-rhythm {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.footer-scale {
  margin-top: var(--space-2);
  height: 10px;
  border-bottom: var(--border-thin) solid var(--color-line);
  background-image: repeating-linear-gradient(
    90deg,
    var(--color-line) 0 1px,
    transparent 1px 13px
  );
}
.footer-scale__cap {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
}

.footer-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-1) var(--space-3);
  margin-top: var(--space-3);
  padding-top: var(--space-2);
  border-top: var(--border-thin) dotted var(--color-line);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.03em;
  color: var(--color-ink-muted);
}
.footer-legal { margin: 0; }
.footer-nav-mini {
  margin: 0;
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.footer-nav-mini a { padding-bottom: 1px; border-bottom: var(--border-thin) dotted var(--color-line); }
.footer-nav-mini a:hover { color: var(--color-primary); border-bottom-color: var(--color-primary); }

/* ==========================================================================
   5. 按钮
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  min-height: 44px;
  padding: 0 var(--space-3);
  background-color: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink);
  text-align: center;
}
.btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background-color: var(--color-primary-soft);
}
.btn--primary {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}
.btn--primary:hover {
  background-color: color-mix(in srgb, var(--color-primary) 82%, var(--color-contrast-surface));
  border-color: color-mix(in srgb, var(--color-primary) 82%, var(--color-contrast-surface));
  color: var(--color-primary-ink);
}
.btn--ghost { background-color: transparent; }
.btn--sm { min-height: 36px; padding: 0 var(--space-2); font-size: var(--text-xs); }

/* ==========================================================================
   6. 面包屑 / 正文容器
   ========================================================================== */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.03em;
  color: var(--color-ink-muted);
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}
.breadcrumb li { display: inline-flex; align-items: center; }
.breadcrumb li + li::before {
  content: "/";
  margin: 0 7px;
  color: var(--color-line);
}
.breadcrumb a { border-bottom: var(--border-thin) dotted transparent; }
.breadcrumb a:hover { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.breadcrumb [aria-current="page"] { color: var(--color-ink); }

.prose {
  max-width: var(--measure);
  font-size: var(--text-base);
}
.prose > * + * { margin-top: var(--space-2); }
.prose h2 { margin-top: var(--space-4); font-size: var(--text-xl); }
.prose h3 { margin-top: var(--space-3); font-size: var(--text-lg); }
.prose ul li {
  position: relative;
  padding-left: 18px;
  margin-top: 6px;
}
.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-primary);
}
.prose blockquote {
  margin: var(--space-3) 0;
  padding: var(--space-2) var(--space-3);
  background-color: var(--color-surface-alt);
  border-left: 2px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
}

/* ==========================================================================
   7. 时间轴（核心组件）
   ========================================================================== */
.timeline { position: relative; }
.timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: var(--border-thin);
  background-color: var(--color-line);
}
.timeline--primary::before { background-color: var(--color-primary); }

.timeline__item {
  position: relative;
  padding-left: var(--space-4);
  padding-bottom: var(--space-4);
}
.timeline__item:last-child { padding-bottom: 0; }

.timeline__node {
  position: absolute;
  left: 0;
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background-color: var(--color-surface);
  border: 2px solid var(--color-primary);
  transition: transform 0.16s ease, box-shadow 0.16s ease, background-color 0.16s ease;
}
.timeline__node--square { border-radius: 2px; }
.timeline__node--solid { background-color: var(--color-primary); }
.timeline__node--accent {
  border-color: var(--color-accent);
  background-color: var(--color-accent);
}
.timeline__node--muted { border-color: var(--color-ink-muted); }

.timeline__item:hover .timeline__node,
.timeline__item:focus-within .timeline__node {
  transform: scale(1.3);
  box-shadow: 0 0 0 4px var(--color-primary-soft);
}
.timeline__item--accent:hover .timeline__node,
.timeline__item--accent:focus-within .timeline__node {
  box-shadow: 0 0 0 4px var(--color-highlight);
}

.timeline__time {
  display: block;
  margin-bottom: 3px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}
.timeline__title {
  margin: 0 0 4px;
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
}
.timeline__meta {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}
.timeline__item--accent .timeline__time { color: var(--color-accent); }
.section--deep .timeline::before { background-color: var(--color-contrast-line); }
.section--deep .timeline__title { color: var(--color-contrast-ink); }
.section--deep .timeline__meta { color: color-mix(in srgb, var(--color-contrast-ink) 74%, transparent); }
.section--deep .timeline__time { color: var(--color-contrast-accent); }
.section--deep .timeline__node {
  background-color: var(--color-contrast-surface);
  border-color: var(--color-contrast-accent);
}

/* ==========================================================================
   8. 面板 / 标签 / 数据表 / 媒体 / 横滑带
   ========================================================================== */
.panel {
  padding: var(--space-3);
  background-color: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
}
.panel--alt { background-color: var(--color-surface-alt); }
.panel--deep {
  background-color: var(--color-contrast-surface);
  border-color: var(--color-contrast-line);
  color: var(--color-contrast-ink);
}
.panel--deep h1,
.panel--deep h2,
.panel--deep h3,
.panel--deep h4 { color: var(--color-contrast-ink); }
.panel--deep a:hover { color: var(--color-contrast-accent); }
.panel__title {
  margin: 0 0 var(--space-1);
  font-size: var(--text-lg);
}
.panel__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface-alt);
  color: var(--color-ink-soft);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.2;
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.tag::before {
  content: "";
  flex: none;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: currentColor;
}
.tag--ok {
  background-color: var(--color-primary-soft);
  border-color: color-mix(in srgb, var(--color-primary) 32%, var(--color-line));
  color: var(--color-primary);
}
.tag--pending {
  background-color: var(--color-highlight);
  border-color: color-mix(in srgb, var(--color-accent) 34%, var(--color-line));
  color: var(--color-accent);
}
.tag--fixed {
  background-color: var(--color-surface-deep);
  border-color: var(--color-line);
  color: var(--color-ink);
}

.dtable {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}
.dtable caption {
  caption-side: top;
  text-align: left;
  padding-bottom: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
}
.dtable th,
.dtable td {
  padding: 10px var(--space-2);
  text-align: left;
  border-bottom: var(--border-thin) dotted var(--color-line);
  vertical-align: middle;
}
.dtable thead th {
  background-color: var(--color-surface-deep);
  color: var(--color-ink);
  font-size: var(--text-sm);
  font-weight: 700;
  border-bottom: var(--border-thin) solid var(--color-line);
}
.dtable tbody tr { transition: background-color 0.14s ease; }
.dtable tbody tr:hover { background-color: var(--color-primary-soft); }
.dtable td.num,
.dtable th.num { font-family: var(--font-mono); text-align: right; font-variant-numeric: tabular-nums; }
.dtable td.is-warn { background-color: var(--color-highlight); color: var(--color-accent); }

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
}

.figure {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  font-variant-numeric: tabular-nums;
}
.figure--accent { color: var(--color-accent); }
.figure--primary { color: var(--color-primary); }
.section--deep .figure { color: var(--color-contrast-ink); }
.section--deep .figure--accent { color: var(--color-contrast-accent); }

.folio {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}
.section--deep .folio { color: var(--color-contrast-accent); }

.media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background-color: var(--color-surface-deep);
  border: var(--border-thin) solid var(--color-line);
  border-radius: 0;
}
.media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
}
.media--wide { aspect-ratio: 21 / 9; }
.media--square { aspect-ratio: 1 / 1; }
.media--tall { aspect-ratio: 3 / 4; }
.media__scrim {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: var(--space-3);
  background: var(--overlay-scrim);
  color: var(--color-contrast-ink);
  font-size: var(--text-sm);
}
.media__scrim h3 { color: var(--color-contrast-ink); font-size: var(--text-lg); }
.media__tag {
  position: absolute;
  top: 0;
  left: 0;
  padding: 5px 10px;
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
}

.strip {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: var(--space-2);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}
.strip > * {
  flex: 0 0 auto;
  scroll-snap-align: start;
}
.strip:focus-visible { outline-offset: 4px; }

.strip-scale {
  position: relative;
  height: 2px;
  background-color: var(--color-surface-deep);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.strip-scale__fill {
  display: block;
  height: 100%;
  width: 12%;
  background-color: var(--color-primary);
  transition: width 0.12s linear;
}

.collapse-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
  padding: 0 var(--space-2);
  background-color: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-ink-soft);
}
.collapse-toggle::after {
  content: "+";
  font-size: var(--text-sm);
  line-height: 1;
  color: var(--color-primary);
}
.collapse-toggle[aria-expanded="true"]::after { content: "−"; }
.collapse-toggle:hover { color: var(--color-primary); border-color: var(--color-primary); }
.collapse-panel { padding-top: var(--space-2); }
.collapse-panel[hidden] { display: none; }

.scale-rule {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 14px;
  border-bottom: var(--border-thin) solid var(--color-line);
}
.scale-rule span {
  flex: none;
  width: var(--border-thin);
  height: 5px;
  background-color: var(--color-line);
}
.scale-rule span:nth-child(3n + 1) { height: 11px; background-color: var(--color-primary); }

/* ==========================================================================
   9. 响应式
   ========================================================================== */
@media (max-width: 1024px) {
  .grid-12 { grid-template-columns: repeat(8, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer-col--rhythm {
    grid-column: 1 / -1;
    padding-left: 0;
    padding-top: var(--space-3);
    border-left: 0;
    border-top: var(--border-thin) dotted var(--color-line);
  }
}

@media (max-width: 900px) {
  .header-top__inner {
    gap: var(--space-2);
    padding-block: var(--space-2) var(--space-2);
  }
  .brand__sub { display: none; }
  .header-cutoff {
    order: 3;
    flex: 1 1 100%;
    padding-top: var(--space-1);
    border-top: var(--border-thin) dotted var(--color-line);
  }
  .nav-toggle { display: inline-flex; }

  .header-nav { display: none; }
  .site-header[data-open] .header-nav {
    display: block;
    max-height: 62vh;
    overflow-y: auto;
  }
  .header-nav__inner { padding-inline: var(--space-2); }
  .nav-list { padding-bottom: var(--space-1); }
  .nav-link { padding-block: 12px 9px; }
  .header-scale {
    display: block;
    height: 2px;
    margin: 0 var(--space-2) var(--space-2);
    background-color: var(--color-surface-deep);
    border-radius: var(--radius-sm);
    overflow: hidden;
  }

  .grid-12 { gap: var(--space-3) var(--space-2); }
  .section { padding-block: var(--space-6); }
  .section--lg { padding-block: var(--section-y); }

  .footer-frame { padding: var(--space-3) var(--space-3) var(--space-2); }
  .footer-foot { justify-content: flex-start; }
}

@media (max-width: 720px) {
  .grid-12 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-links { grid-template-columns: minmax(0, 1fr); }
  .footer-contact li { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .footer-contact__k { display: block; }
}

@media (max-width: 480px) {
  .brand__name { font-size: var(--text-base); }
  .header-cutoff { font-size: 11px; }
  .footer-foot { font-size: 11px; }
}

/* ==========================================================================
   10. 减少动效
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .nav-list,
  .strip { scroll-snap-type: none; }
  .timeline__item:hover .timeline__node,
  .timeline__item:focus-within .timeline__node { transform: none; }
}