:root {
  --color-surface: #f8f8f8;
  --color-surface-alt: #efefef;
  --color-surface-deep: #e2e3e3;
  --color-ink: #40484a;
  --color-ink-soft: #646f72;
  --color-ink-muted: #788487;
  --color-line: #d7d8d9;
  --color-primary: #3d7f8f;
  --color-primary-ink: #ffffff;
  --color-primary-soft: #dee7e9;
  --color-accent: #1d4fe2;
  --color-accent-ink: #ffffff;
  --color-highlight: #d1daf4;
  --color-focus: #1049ef;
  --color-contrast-surface: #101517;
  --color-contrast-ink: #e4e6e7;
  --color-contrast-line: #3f4345;
  --color-contrast-accent: #5379e9;
  --overlay-scrim: linear-gradient(180deg, rgba(16, 21, 23, 0.35) 0%, rgba(16, 21, 23, 0.72) 55%, rgba(16, 21, 23, 0.92) 100%);
  --font-heading: "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", 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(36px, 7.4vw, 95px);
  --text-figure: clamp(30px, 5.3vw, 68px);
  --weight-heading: 693;
  --weight-body: 400;
  --leading-body: 1.83;
  --leading-heading: 1.23;
  --tracking-heading: 0.001em;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 11px;
  --radius-pill: 999px;
  --border-thin: 1px;
  --border-thick: 1px;
  --shadow-1: 0 6px 18px rgba(64, 72, 74, 0.08);
  --shadow-2: 0 18px 44px rgba(64, 72, 74, 0.14);
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-6: 48px;
  --space-8: 64px;
  --container: 1260px;
  --measure: 72ch;
  --gutter: 32px;
  --section-y: 80px;
  --section-y-lg: 112px;
}

/* ==========================================================================
   1 · Reset
   ========================================================================== */
*,
*::before,
*::after { box-sizing: border-box; }

* { margin: 0; }

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

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  min-height: 100vh;
  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;
}

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

button, input, select, textarea { font: inherit; color: inherit; }

a { color: inherit; text-decoration: none; }

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

table { width: 100%; border-collapse: collapse; }

[hidden] { display: none !important; }

/* ==========================================================================
   2 · 中文排版与标题
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  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 { text-wrap: pretty; }

strong, b { font-weight: 500; }

code, kbd, samp, .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

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

/* ==========================================================================
   3 · 焦点与可访问
   ========================================================================== */
:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

:focus:not(:focus-visible) { outline: none; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: calc(-1 * var(--space-8));
  left: var(--space-2);
  z-index: 200;
  padding: 10px var(--space-3);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-2);
  transition: top 160ms ease-out;
}

.skip-link:focus {
  top: var(--space-2);
  outline-color: var(--color-focus);
}

/* ==========================================================================
   4 · 容器与区块
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 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-surface-deep); }

.section--dark {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4,
.section--dark p,
.section--dark li,
.section--dark dt,
.section--dark dd { color: inherit; }

.section--dark .eyebrow { color: var(--color-contrast-accent); }

.rule-dual {
  height: 3px;
  border: 0;
  border-top: 2px solid var(--color-ink-soft);
  border-bottom: var(--border-thin) solid var(--color-line);
  margin-block: var(--space-8);
  opacity: 0.75;
}

.section--dark .rule-dual {
  border-top-color: var(--color-contrast-line);
  border-bottom-color: var(--color-contrast-line);
}

/* ==========================================================================
   5 · 栅格
   ========================================================================== */
.grid {
  display: grid;
  gap: var(--gutter);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--rail { grid-template-columns: minmax(0, 3fr) minmax(0, 9fr); }
.grid--split { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }

/* ==========================================================================
   6 · 标题组件
   ========================================================================== */
.section-title {
  position: relative;
  padding-left: var(--space-2);
  margin-bottom: var(--space-4);
  font-size: var(--text-xl);
  letter-spacing: 0.08em;
}

.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.2em;
  width: 3px;
  height: 0.8em;
  border-radius: 2px;
  background-color: var(--color-primary);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.section--dark .eyebrow { color: var(--color-ink-muted); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  transition: gap 140ms ease-out, color 140ms ease-out;
}

.link-arrow::after { content: "\2192"; }

.link-arrow:hover {
  gap: var(--space-2);
  color: var(--color-accent);
}

.section--dark .link-arrow { color: var(--color-contrast-accent); }

/* ==========================================================================
   7 · 正文
   ========================================================================== */
.prose {
  max-width: var(--measure);
  line-height: 1.83;
}

.prose > * + * { margin-top: var(--space-3); }

.prose h2 {
  font-size: var(--text-xl);
  letter-spacing: 0.06em;
  margin-top: var(--space-6);
}

.prose h3 {
  font-size: var(--text-lg);
  letter-spacing: 0.05em;
  margin-top: var(--space-4);
}

.prose ul,
.prose ol { padding-left: 0; }

.prose li {
  position: relative;
  padding-left: var(--space-3);
  margin-top: var(--space-1);
}

.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 10px;
  height: 1px;
  background-color: var(--color-primary);
}

.prose blockquote {
  padding-left: var(--space-3);
  border-left: 3px solid var(--color-primary);
  color: var(--color-ink-soft);
}

/* ==========================================================================
   8 · 页头
   ========================================================================== */
.site-header {
  position: relative;
  z-index: 60;
  background-color: var(--color-surface);
}

.site-header::after {
  content: "";
  display: block;
  height: 3px;
  border-top: 2px solid var(--color-primary);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding: var(--space-3) var(--gutter);
}

/* --- 品牌 --- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
  flex: 0 1 auto;
}

.brand__mark {
  position: relative;
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  background-color: var(--color-contrast-surface);
}

.brand__mark::before,
.brand__mark::after {
  content: "";
  position: absolute;
  bottom: 8px;
  width: 4px;
  border-radius: 2px;
}

.brand__mark::before {
  left: 9px;
  height: 11px;
  background-color: var(--color-primary);
}

.brand__mark::after {
  left: 18px;
  height: 18px;
  background-color: var(--color-contrast-accent);
}

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.brand__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.1;
  letter-spacing: 0.12em;
  color: var(--color-ink);
  white-space: nowrap;
}

.brand__descriptor {
  font-size: var(--text-xs);
  line-height: 1.3;
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* --- 移动导航按钮 --- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px var(--space-2);
  background-color: transparent;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  color: var(--color-ink);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: border-color 140ms ease-out, background-color 140ms ease-out;
}

.nav-toggle:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-soft);
}

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 18px;
}

.nav-toggle__bars span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background-color: currentColor;
  transition: transform 160ms ease-out, opacity 160ms ease-out;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* --- 主导航 --- */
.primary-nav {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}

.primary-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.primary-nav__link {
  position: relative;
  display: inline-block;
  padding: 8px var(--space-2);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-ink-soft);
  transition: color 140ms ease-out, background-color 140ms ease-out;
}

.primary-nav__link:hover {
  color: var(--color-ink);
  background-color: var(--color-surface-alt);
}

.primary-nav__link[aria-current="page"] {
  color: var(--color-primary);
  font-weight: 500;
}

.primary-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: var(--space-2);
  right: var(--space-2);
  bottom: 1px;
  height: 2px;
  border-radius: 2px;
  background-color: var(--color-primary);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 9px var(--space-2);
  border-radius: var(--radius-sm);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  transition: background-color 140ms ease-out, color 140ms ease-out;
}

.nav-cta::after { content: "\2192"; }

.nav-cta:hover {
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
}

/* ==========================================================================
   9 · 页脚（大字收尾）
   ========================================================================== */
.site-footer {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-top: 2px solid var(--color-primary);
  padding-block: var(--section-y-lg) var(--space-6);
}

.footer-inner {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.footer-wordmark {
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 0.94;
  letter-spacing: 0.08em;
  color: var(--color-contrast-ink);
  margin-bottom: var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-top: var(--border-thin) solid var(--color-contrast-line);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}

.footer-col__title {
  margin-bottom: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  display: inline-block;
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: var(--color-contrast-ink);
  border-bottom: var(--border-thin) solid transparent;
  transition: color 140ms ease-out, border-color 140ms ease-out;
}

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

.footer-plain {
  display: inline-block;
  font-size: var(--text-sm);
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, var(--color-contrast-surface));
  word-break: break-word;
}

.footer-contact {
  margin-top: var(--space-4);
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, var(--color-contrast-surface));
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-contrast-line);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

/* ==========================================================================
   10 · 按钮与标签
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: 11px var(--space-3);
  border: var(--border-thin) solid transparent;
  border-radius: var(--radius-md);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background-color 140ms ease-out, color 140ms ease-out, border-color 140ms ease-out;
}

.btn:hover { background-color: var(--color-primary); color: var(--color-primary-ink); }

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
}

.btn--primary:hover { background-color: color-mix(in srgb, var(--color-primary) 78%, var(--color-ink)); }

.btn--ghost {
  background-color: transparent;
  border-color: var(--color-line);
  color: var(--color-ink);
}

.btn--ghost:hover {
  background-color: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-ink);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background-color: var(--color-surface-deep);
  color: var(--color-ink-soft);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
}

.tag--accent {
  background-color: var(--color-highlight);
  color: var(--color-accent);
  border: var(--border-thin) solid var(--color-accent);
}

.section--dark .tag {
  background-color: color-mix(in srgb, var(--color-contrast-ink) 14%, var(--color-contrast-surface));
  color: var(--color-contrast-ink);
}

/* ==========================================================================
   11 · 卡片
   ========================================================================== */
.card {
  display: block;
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  box-shadow: var(--shadow-1);
  transition: transform 160ms ease-out, box-shadow 160ms ease-out, border-color 160ms ease-out;
}

.card--interactive:hover,
.card--interactive:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
  border-color: var(--color-primary);
}

.card--dark {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-color: var(--color-contrast-line);
}

.card--dark h2,
.card--dark h3,
.card--dark p { color: inherit; }

/* ==========================================================================
   12 · 比分行与指标
   ========================================================================== */
.scoreline {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: var(--space-3);
}

.scoreline__side {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.scoreline__side--right { align-items: flex-end; text-align: right; }

.scoreline__team {
  font-size: var(--text-base);
  font-weight: 500;
  letter-spacing: 0.05em;
}

.scoreline__score {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  letter-spacing: -0.02em;
  color: inherit;
}

.section--dark .scoreline__score,
.card--dark .scoreline__score { color: var(--color-contrast-ink); }

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat__label {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.stat__value {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  color: var(--color-ink);
}

.section--dark .stat__value,
.card--dark .stat__value { color: var(--color-contrast-ink); }

.stat--accent .stat__value { color: var(--color-accent); }

/* ==========================================================================
   13 · 时间轴
   ========================================================================== */
.timeline {
  position: relative;
  padding-left: 28px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: var(--border-thin);
  background-color: var(--color-primary);
  opacity: 0.5;
}

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

.timeline__item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background-color: var(--color-surface);
  border: 2px solid var(--color-primary);
}

.timeline__item:last-child { padding-bottom: 0; }

.section--dark .timeline::before,
.card--dark .timeline::before { background-color: var(--color-contrast-accent); opacity: 0.6; }

.section--dark .timeline__item::before,
.card--dark .timeline__item::before {
  background-color: var(--color-contrast-surface);
  border-color: var(--color-contrast-accent);
}

/* ==========================================================================
   14 · 折叠面板
   ========================================================================== */
.panel {
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  overflow: hidden;
}

.panel + .panel { margin-top: var(--space-2); }

.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3);
}

.panel__title {
  font-size: var(--text-base);
  font-weight: 500;
  letter-spacing: 0.05em;
}

.panel__toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 6px 10px;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background-color: transparent;
  color: var(--color-primary);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: background-color 140ms ease-out, border-color 140ms ease-out;
}

.panel__toggle:hover {
  background-color: var(--color-primary-soft);
  border-color: var(--color-primary);
}

.panel__toggle::after { content: "\FF0B"; }

.panel__toggle[aria-expanded="true"]::after { content: "\FF0D"; }

.panel__body {
  padding: 0 var(--space-3) var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
  padding-top: var(--space-3);
}

.panel__body[hidden] { display: none; }

/* ==========================================================================
   15 · 筛选按钮
   ========================================================================== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  padding-bottom: var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
  margin-bottom: var(--space-4);
}

.filter-btn {
  appearance: none;
  padding: 7px var(--space-2);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background-color 140ms ease-out, color 140ms ease-out, border-color 140ms ease-out, box-shadow 140ms ease-out;
}

.filter-btn:hover {
  background-color: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-ink);
}

.filter-btn[aria-pressed="true"] {
  background-color: var(--color-highlight);
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent) 18%, transparent);
}

.filter-empty {
  padding: var(--space-4) 0;
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
}

/* ==========================================================================
   16 · 图片容器（图录式）
   ========================================================================== */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background-color: var(--color-surface-deep);
  aspect-ratio: 16 / 9;
}

.media-frame--3x2 { aspect-ratio: 3 / 2; }
.media-frame--1x1 { aspect-ratio: 1 / 1; }

.media-frame > img,
.media-frame > svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame__overlay {
  position: absolute;
  inset: auto 0 0 0;
  padding: var(--space-3);
  background: var(--overlay-scrim);
  color: var(--color-contrast-ink);
}

.media-frame__overlay h3,
.media-frame__overlay p { color: var(--color-contrast-ink); }

.media-frame__caption {
  margin-top: 10px;
  font-size: var(--text-xs);
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

.media-frame--flat { box-shadow: var(--shadow-1); }

/* ==========================================================================
   17 · 面包屑
   ========================================================================== */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  padding-block: var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.breadcrumb a {
  color: var(--color-ink-soft);
  transition: color 140ms ease-out;
}

.breadcrumb a:hover { color: var(--color-primary); }

.breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: var(--space-1);
  color: var(--color-line);
}

.breadcrumb[aria-label] li[aria-current="page"] { color: var(--color-ink); }

/* ==========================================================================
   18 · 表格
   ========================================================================== */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  line-height: 1.4;
}

.data-table caption {
  margin-bottom: var(--space-2);
  text-align: left;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.data-table th,
.data-table td {
  padding: 12px var(--space-2);
  text-align: left;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.data-table thead th {
  border-top: 2px solid var(--color-ink-soft);
  border-bottom: var(--border-thin) solid var(--color-ink-soft);
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-ink);
}

.data-table tbody tr:nth-child(even) { background-color: var(--color-surface-deep); }

.data-table .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

/* ==========================================================================
   19 · 进场显现
   ========================================================================== */
[data-reveal] {
  transition: opacity 240ms cubic-bezier(0, 0, 0.2, 1), transform 240ms cubic-bezier(0, 0, 0.2, 1);
}

[data-reveal].is-pending {
  opacity: 0;
  transform: translateY(10px);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   20 · 响应式
   ========================================================================== */
@media (max-width: 1080px) {
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--rail,
  .grid--split { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-4) var(--space-3); }
}

@media (max-width: 940px) {
  .nav-toggle { display: inline-flex; }

  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 70;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin-left: 0;
    padding: var(--space-2) var(--gutter) var(--space-4);
    background-color: var(--color-contrast-surface);
    color: var(--color-contrast-ink);
    border-top: 2px solid var(--color-primary);
    box-shadow: var(--shadow-2);
    max-height: 78vh;
    overflow-y: auto;
  }

  .primary-nav[data-open] { display: flex; }

  .primary-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .primary-nav__link {
    display: block;
    padding: var(--space-2) 0;
    border-radius: 0;
    border-bottom: var(--border-thin) solid var(--color-contrast-line);
    font-size: var(--text-base);
    color: var(--color-contrast-ink);
  }

  .primary-nav__link:hover {
    background-color: transparent;
    color: var(--color-contrast-accent);
  }

  .primary-nav__link[aria-current="page"] { color: var(--color-contrast-accent); }

  .primary-nav__link[aria-current="page"]::after { display: none; }

  .nav-cta {
    justify-content: center;
    margin-top: var(--space-3);
    background-color: var(--color-primary);
    color: var(--color-primary-ink);
  }
}

@media (max-width: 720px) {
  .header-inner { padding: var(--space-2) var(--space-3); gap: var(--space-2); }
  .container { padding-inline: var(--space-3); }
  .footer-inner { padding-inline: var(--space-3); }
  .section { padding-block: var(--space-8); }
  .section--lg { padding-block: var(--space-8); }
  .grid--2,
  .grid--3 { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .brand__descriptor { display: none; }
  .brand__name { font-size: var(--text-base); letter-spacing: 0.1em; }
  .rule-dual { margin-block: var(--space-6); }
  .scoreline { gap: var(--space-2); }
  .scoreline__side { align-items: center; text-align: center; }
  .scoreline__side--right { align-items: center; }
  .scoreline__team { font-size: var(--text-sm); }
  .footer-base { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 420px) {
  .nav-toggle__label { display: none; }
  .nav-toggle { padding: 9px 11px; }
}

/* ==========================================================================
   21 · 减少动态
   ========================================================================== */
@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;
  }

  [data-reveal],
  [data-reveal].is-pending {
    opacity: 1;
    transform: none;
  }

  .card--interactive:hover { transform: none; }
  .link-arrow:hover { gap: var(--space-1); }
}