/* ==========================================================================
   19体育主站 · 共享样式 /assets/site.css
   档案索引柜 × 夜间赛场数据面板
   ========================================================================== */

:root {
  --color-surface: #ecebea;
  --color-surface-alt: #e4e2e1;
  --color-surface-deep: #d8d6d5;
  --color-ink: #473f39;
  --color-ink-soft: #6d6359;
  --color-ink-muted: #8b7e74;
  --color-line: #ceccca;
  --color-primary: #a46937;
  --color-primary-ink: #ffffff;
  --color-primary-soft: #e2d9d1;
  --color-accent: #3728d7;
  --color-accent-ink: #ffffff;
  --color-highlight: #cbc8e7;
  --color-focus: #2c1ce3;
  --color-contrast-surface: #191410;
  --color-contrast-ink: #e7e5e4;
  --color-contrast-line: #46423f;
  --color-contrast-accent: #7b71e4;
  --overlay-scrim: linear-gradient(180deg, rgba(25, 20, 16, 0.35) 0%, rgba(25, 20, 16, 0.72) 55%, rgba(25, 20, 16, 0.92) 100%);
  --font-heading: "Songti SC", "Source Han Serif SC", "Noto Serif SC", SimSun, serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-mono: ui-monospace, Menlo, Consolas, monospace;
  --text-xs: 11.4px;
  --text-sm: 13.7px;
  --text-base: 15px;
  --text-lg: 18.0px;
  --text-xl: 21.6px;
  --text-2xl: 25.9px;
  --text-3xl: 31.1px;
  --text-4xl: 37.3px;
  --text-display: clamp(34px, 5.2vw, 67px);
  --text-figure: clamp(28px, 3.8vw, 48px);
  --weight-heading: 660;
  --weight-body: 400;
  --leading-body: 1.72;
  --leading-heading: 1.2;
  --tracking-heading: 0.006em;
  --radius-sm: 1px;
  --radius-md: 1px;
  --radius-lg: 1px;
  --radius-pill: 1px;
  --border-thin: 1px;
  --border-thick: 2px;
  --shadow-1: 0 1px 0 rgba(71, 63, 57, 0.12);
  --shadow-2: 0 2px 0 rgba(71, 63, 57, 0.18);
  --space-1: 6px;
  --space-2: 12px;
  --space-3: 18px;
  --space-4: 24px;
  --space-6: 36px;
  --space-8: 48px;
  --container: 1180px;
  --measure: 70ch;
  --gutter: 18px;
  --section-y: 78px;
  --section-y-lg: 109px;
}

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

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

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);
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

p { margin: 0 0 var(--space-3); }

ul, ol { margin: 0 0 var(--space-3); padding-left: 1.15em; }

li { margin-bottom: 4px; }

a {
  color: var(--color-accent);
  text-decoration: none;
  text-underline-offset: 3px;
}

a:hover { text-decoration: underline; }

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

img { height: auto; }

button { font: inherit; color: inherit; }

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

hr { border: 0; }

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

[hidden] { display: none !important; }

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

/* ---------- 版式骨架 ---------- */
.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); }

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

.col-1 { grid-column: span 1; }
.col-2 { grid-column: span 2; }
.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-7 { grid-column: span 7; }
.col-8 { grid-column: span 8; }
.col-9 { grid-column: span 9; }
.col-10 { grid-column: span 10; }
.col-11 { grid-column: span 11; }
.col-12 { grid-column: span 12; }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-3);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-4);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.section-title {
  margin: 0;
  font-size: var(--text-2xl);
}

.section-note {
  margin: 0 0 0 auto;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.kicker::before {
  content: "";
  width: 12px;
  height: var(--border-thin);
  background: var(--color-primary);
}

.page-head {
  padding-block: var(--space-6) var(--space-4);
  border-bottom: var(--border-thin) dashed var(--color-line);
}

.page-title {
  font-size: var(--text-display);
  line-height: 1.06;
  margin-bottom: var(--space-3);
  max-width: 24ch;
}

.lede {
  max-width: var(--measure);
  font-size: var(--text-lg);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.prose { max-width: var(--measure); }
.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 li { margin-bottom: 4px; }

.rule {
  border: 0;
  border-top: var(--border-thin) dotted var(--color-line);
  margin: var(--space-4) 0;
}
.rule--dashed { border-top-style: dashed; }
.rule--solid { border-top-style: solid; }

.breadcrumb {
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}
.breadcrumb li { margin: 0; }
.breadcrumb li + li::before {
  content: "/";
  margin-right: var(--space-1);
  color: var(--color-line);
}
.breadcrumb a { color: var(--color-ink-soft); }

/* ---------- 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  padding-block: var(--space-2);
  background-color: color-mix(in srgb, var(--color-surface) 92%, transparent);
  border-bottom: var(--border-thin) dotted var(--color-line);
  transition: background-color 160ms ease-out;
}

@supports (backdrop-filter: blur(4px)) {
  .site-header { backdrop-filter: blur(8px); }
}

.site-header[data-nav-open="true"] {
  background-color: var(--color-surface);
  border-bottom-color: var(--color-line);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.skip-link {
  position: fixed;
  top: -80px;
  left: var(--space-3);
  z-index: 300;
  padding: var(--space-2) var(--space-3);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  transition: top 160ms ease-out;
}
.skip-link:focus { top: var(--space-2); }

.brand-island {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 4px var(--space-2) 4px 4px;
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  color: var(--color-ink);
}
.brand-island:hover { text-decoration: none; background: var(--color-surface-deep); }

.brand-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
}

.brand-line {
  font-size: var(--text-xs);
  letter-spacing: 0.02em;
  color: var(--color-ink-muted);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 7px;
  padding: 7px var(--space-2);
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: var(--color-ink);
  cursor: pointer;
}
.nav-toggle[aria-expanded="true"] {
  background: var(--color-contrast-surface);
  border-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.nav-toggle__bars {
  position: relative;
  width: 14px;
  height: 10px;
  background: linear-gradient(var(--color-ink), var(--color-ink)) center / 100% var(--border-thin) no-repeat;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: var(--border-thin);
  background: currentColor;
}
.nav-toggle__bars::before { top: 0; }
.nav-toggle__bars::after { bottom: 0; }

.nav-island {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 3px;
  list-style: none;
}
.nav-list li { margin: 0; }

.nav-link {
  display: inline-block;
  padding: 6px var(--space-2);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
  color: var(--color-ink-soft);
  transition: background-color 140ms ease-out, color 140ms ease-out;
}
.nav-link:hover {
  background: var(--color-surface-deep);
  color: var(--color-ink);
  text-decoration: none;
}
.nav-link[aria-current="page"] {
  background: var(--color-primary-soft);
  color: var(--color-ink);
  box-shadow: inset 0 -2px 0 0 var(--color-accent);
}

.header-stats {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 5px var(--space-2);
  background: 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);
  color: var(--color-ink-muted);
}
.header-stats__item { display: inline-flex; align-items: baseline; gap: 3px; }
.header-stats__k { color: var(--color-ink-muted); }
.header-stats__v { color: var(--color-ink); letter-spacing: 0.02em; }
.header-stats__sep { color: var(--color-line); }

/* ---------- 页脚 ---------- */
.site-footer {
  margin-top: var(--section-y-lg);
  padding-block: var(--section-y) var(--space-6);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-top: var(--border-thick) solid var(--color-primary);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: var(--border-thin) dotted var(--color-contrast-line);
}

.footer-brand {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.footer-tagline {
  margin: 0;
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent);
}

.footer-index {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.index-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  padding: 5px var(--space-2);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: var(--color-contrast-accent);
  transition: background-color 140ms ease-out, border-color 140ms ease-out;
}
.index-chip:hover {
  background: color-mix(in srgb, var(--color-contrast-accent) 20%, transparent);
  border-color: var(--color-contrast-accent);
  text-decoration: none;
}
.index-chip__no {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: color-mix(in srgb, var(--color-contrast-ink) 52%, transparent);
}

.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: var(--space-3);
  border-top: var(--border-thin) dashed var(--color-contrast-line);
}

.footer-line {
  margin: 0;
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 84%, transparent);
  overflow-wrap: anywhere;
}

.footer-key {
  display: inline-block;
  min-width: 42px;
  margin-right: var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-contrast-accent);
}

.footer-colophon {
  margin: 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) dotted var(--color-contrast-line);
  font-size: var(--text-xs);
  line-height: 1.7;
  color: color-mix(in srgb, var(--color-contrast-ink) 58%, transparent);
}

/* ---------- 按钮与筛选 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 8px var(--space-3);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
  color: var(--color-ink);
  cursor: pointer;
  transition: background-color 150ms ease-out, color 150ms ease-out, border-color 150ms ease-out;
}
.btn:hover { background: var(--color-surface-deep); text-decoration: none; }

.btn--primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}
.btn--primary:hover {
  background: color-mix(in srgb, var(--color-primary) 80%, var(--color-contrast-surface));
  border-color: color-mix(in srgb, var(--color-primary) 80%, var(--color-contrast-surface));
}

.btn--accent {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}
.btn--accent:hover {
  background: color-mix(in srgb, var(--color-accent) 82%, var(--color-contrast-surface));
  border-color: color-mix(in srgb, var(--color-accent) 82%, var(--color-contrast-surface));
}

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

.btn--contrast {
  background: transparent;
  border-color: var(--color-contrast-line);
  color: var(--color-contrast-ink);
}
.btn--contrast:hover {
  background: color-mix(in srgb, var(--color-contrast-ink) 12%, transparent);
}

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

.filter-bar__label {
  margin: 0 var(--space-1) 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-soft);
  cursor: pointer;
  transition: background-color 140ms ease-out, color 140ms ease-out, border-color 140ms ease-out;
}
.chip:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.chip[aria-pressed="true"] {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}

/* ---------- 标签与编号 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 7px;
  background: var(--color-primary-soft);
  border: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 45%, var(--color-line));
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  line-height: 1.6;
  letter-spacing: 0.08em;
  color: color-mix(in srgb, var(--color-primary) 70%, var(--color-ink));
  white-space: nowrap;
}
.tag::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  background: var(--color-primary);
}

.tag--accent {
  background: color-mix(in srgb, var(--color-accent) 10%, var(--color-surface));
  border-color: color-mix(in srgb, var(--color-accent) 42%, var(--color-line));
  color: color-mix(in srgb, var(--color-accent) 78%, var(--color-ink));
}
.tag--accent::before { background: var(--color-accent); }

.tag--ink {
  background: var(--color-surface-deep);
  border-color: var(--color-line);
  color: var(--color-ink-soft);
}
.tag--ink::before { background: var(--color-ink-soft); }

.tag--contrast {
  background: color-mix(in srgb, var(--color-contrast-accent) 22%, transparent);
  border-color: var(--color-contrast-line);
  color: var(--color-contrast-ink);
}
.tag--contrast::before { background: var(--color-contrast-accent); }

.entry-no {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
}

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

/* ---------- 索引行 ---------- */
.index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--border-thin) solid var(--color-line);
}
.index-list li { margin: 0; }

.index-row {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) auto;
  gap: 2px var(--space-3);
  align-items: baseline;
  padding: var(--space-2) var(--space-1);
  border-bottom: var(--border-thin) dotted var(--color-line);
  transition: background-color 150ms ease-out;
}
.index-row:hover,
.index-row:focus-within { background: var(--color-surface-alt); }
.index-row.is-hit { background: var(--color-highlight); }

.index-row__no {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.index-row__body { min-width: 0; }

.index-row__title {
  margin: 0;
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.32;
}
.index-row__title a { color: var(--color-ink); }
.index-row__title a:hover { color: var(--color-accent); text-decoration: none; }

.index-row__desc {
  margin: 3px 0 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.index-row__meta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  white-space: nowrap;
}

.index-row__note {
  grid-column: 2 / -1;
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: var(--text-xs);
  line-height: 1.7;
  color: var(--color-ink-muted);
  border-left: var(--border-thin) solid transparent;
  transition: max-height 220ms ease-out, opacity 220ms ease-out, padding 220ms ease-out;
}
.index-row:hover .index-row__note,
.index-row:focus-within .index-row__note {
  max-height: 160px;
  opacity: 1;
  padding: 4px 0 0 var(--space-2);
  border-left-color: var(--color-primary);
}

/* ---------- 索引表 ---------- */
.index-table {
  font-size: var(--text-sm);
  border: var(--border-thin) solid var(--color-line);
}
.index-table caption {
  caption-side: top;
  padding: 0 0 var(--space-2);
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}
.index-table th {
  padding: 7px var(--space-2);
  text-align: left;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-ink-soft);
  background: var(--color-surface-deep);
  border: var(--border-thin) solid var(--color-line);
  white-space: nowrap;
}
.index-table td {
  padding: 8px var(--space-2);
  vertical-align: top;
  border: var(--border-thin) solid var(--color-line);
}
.index-table tbody tr:nth-child(even) { background: var(--color-surface-alt); }

/* ---------- 卡片、面板、数据 ---------- */
.card {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
}

.card__head {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding-bottom: var(--space-1);
  border-bottom: var(--border-thin) dotted var(--color-line);
}

.card__title {
  margin: 0;
  font-size: var(--text-lg);
}

.card__meta {
  margin: 0 0 0 auto;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.panel-contrast {
  padding: var(--space-6);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-sm);
}
.panel-contrast h2,
.panel-contrast h3 { color: var(--color-contrast-ink); }
.panel-contrast a { color: var(--color-contrast-accent); }
.panel-contrast .rule { border-top-color: var(--color-contrast-line); }
.panel-contrast .entry-no { color: color-mix(in srgb, var(--color-contrast-ink) 55%, transparent); }

.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-figure);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}
.stat__label {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}
.panel-contrast .stat__value { color: var(--color-contrast-ink); }
.panel-contrast .stat__label { color: color-mix(in srgb, var(--color-contrast-ink) 58%, transparent); }

.aside-note {
  padding: var(--space-3);
  background: var(--color-surface-alt);
  border-left: var(--border-thick) solid var(--color-primary);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}
.aside-note p:last-child { margin-bottom: 0; }

/* ---------- 图片容器 ---------- */
.figure { margin: 0; }

.figure__frame {
  position: relative;
  overflow: hidden;
  background: var(--color-surface-deep);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
}
.figure__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.figure--16x9 .figure__frame { aspect-ratio: 16 / 9; }
.figure--4x3 .figure__frame { aspect-ratio: 4 / 3; }
.figure--3x4 .figure__frame { aspect-ratio: 3 / 4; }
.figure--1x1 .figure__frame { aspect-ratio: 1 / 1; }

.figure__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
  pointer-events: none;
}

.figure__overlay {
  position: absolute;
  inset: auto 0 0 0;
  padding: var(--space-4);
  color: var(--color-contrast-ink);
}
.figure__overlay .figure__title {
  margin: 0 0 4px;
  font-size: var(--text-xl);
  color: var(--color-contrast-ink);
}
.figure__overlay p { margin: 0; font-size: var(--text-sm); }

.figure__caption {
  margin-top: var(--space-2);
  padding-top: var(--space-1);
  border-top: var(--border-thin) dotted var(--color-line);
  font-size: var(--text-xs);
  line-height: 1.7;
  color: var(--color-ink-muted);
}

/* ---------- 滚动显现 ---------- */
[data-reveal] {
  transition: opacity 320ms ease-out, transform 320ms ease-out;
  transition-delay: var(--reveal-delay, 0ms);
}
[data-reveal].is-pending {
  opacity: 0;
  transform: translateY(10px);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1040px) {
  .brand-line { display: none; }
}

@media (max-width: 940px) {
  .nav-toggle { display: inline-flex; }
  .header-stats { margin-left: auto; }

  .nav-island {
    display: none;
    flex: 1 1 100%;
    width: 100%;
    justify-content: flex-start;
  }
  .nav-island[data-open="true"] { display: block; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    padding: var(--space-1);
    gap: 0;
  }
  .nav-link {
    display: block;
    padding: var(--space-2) var(--space-3);
    border-bottom: var(--border-thin) dotted var(--color-line);
  }
  .nav-list li:last-child .nav-link { border-bottom: 0; }

  .index-row {
    grid-template-columns: 44px minmax(0, 1fr);
  }
  .index-row__meta {
    grid-column: 2;
    justify-self: start;
  }
  .index-row__note { grid-column: 2; }
}

@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .col-1, .col-2, .col-3 { grid-column: span 3; }
  .col-4, .col-5, .col-6 { grid-column: span 6; }
  .col-7, .col-8, .col-9, .col-10, .col-11, .col-12 { grid-column: span 6; }

  .section { padding-block: var(--space-8); }
  .section--lg { padding-block: var(--section-y); }
}

@media (max-width: 620px) {
  .header-stats { display: none; }

  .grid { grid-template-columns: 1fr; }
  .grid > [class*="col-"] { grid-column: auto; }

  .section-head { flex-direction: column; align-items: flex-start; }
  .section-note { margin-left: 0; }

  .footer-head { flex-direction: column; gap: var(--space-1); }
  .footer-key { min-width: 0; }

  .index-table { font-size: var(--text-xs); }
  .index-table th,
  .index-table td { padding: 6px 8px; }

  .panel-contrast { padding: var(--space-4); }
}

/* ---------- 动效降级 ---------- */
@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;
  }

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