/* ==========================================================================
   熊猫体育 · 共享样式 /assets/site.css
   风格：霓虹夜色 —— 深底纵向流，霓虹只出现在边界、编号与关键入口
   材质：中圆角、发光描边、深色玻璃层；分隔靠留白，不用可见边界
   ========================================================================== */

:root {
  --color-surface: #292529;
  --color-surface-alt: #383338;
  --color-surface-deep: #49444a;
  --color-ink: #cbc0ce;
  --color-ink-soft: #a08ea4;
  --color-ink-muted: #88738c;
  --color-line: #464147;
  --color-primary: #bb2cd8;
  --color-primary-ink: #ffffff;
  --color-primary-soft: #3d2642;
  --color-accent: #b9f10e;
  --color-accent-ink: #171118;
  --color-highlight: #434a24;
  --color-focus: #c0fe01;
  --color-contrast-surface: #f7f6f7;
  --color-contrast-ink: #3a353b;
  --color-contrast-line: #cdccce;
  --color-contrast-accent: #5d7907;
  --overlay-scrim: linear-gradient(180deg, rgba(247, 246, 247, 0.35) 0%, rgba(247, 246, 247, 0.72) 55%, rgba(247, 246, 247, 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: 11.4px;
  --text-sm: 14.3px;
  --text-base: 16px;
  --text-lg: 20.0px;
  --text-xl: 25.0px;
  --text-2xl: 31.2px;
  --text-3xl: 39.1px;
  --text-4xl: 48.8px;
  --text-display: clamp(48px, 9.9vw, 127px);
  --text-figure: clamp(40px, 7.1vw, 91px);
  --weight-heading: 644;
  --weight-body: 400;
  --leading-body: 1.75;
  --leading-heading: 1.24;
  --tracking-heading: -0.007em;
  --radius-sm: 8px;
  --radius-md: 8px;
  --radius-lg: 9px;
  --radius-pill: 999px;
  --border-thin: 1px;
  --border-thick: 2px;
  --shadow-1: 0 0 0 1px rgba(185, 241, 14, 0.35);
  --shadow-2: 0 0 28px rgba(185, 241, 14, 0.35);
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-6: 48px;
  --space-8: 64px;
  --container: 1220px;
  --measure: 67ch;
  --gutter: 24px;
  --section-y: 87px;
  --section-y-lg: 122px;
}

/* 派生布局量：仅用于共享外壳的轨道与顶栏尺寸，不覆盖任何定稿变量 */
:root {
  --rail-w: 232px;
  --topbar-h: 76px;
}

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

html { -webkit-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;
}

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

[hidden] { display: none !important; }

/* ---------- 中文排版 ---------- */
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-3);
  color: var(--color-ink);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}
h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p { margin: 0 0 var(--space-3); }
ul, ol { margin: 0 0 var(--space-3); padding-left: 1.15em; }
li { margin-bottom: var(--space-1); }
p:last-child,
ul:last-child,
ol:last-child { margin-bottom: 0; }

a {
  color: inherit;
  text-decoration: none;
  transition: color 140ms linear, background-color 140ms linear,
    border-color 140ms linear, box-shadow 140ms linear, opacity 140ms linear;
}

strong { font-weight: var(--weight-heading); }

code, kbd, samp { font-family: var(--font-mono); font-size: var(--text-sm); }

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

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

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

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: var(--space-2);
  left: var(--space-2);
  z-index: 90;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  background-color: var(--color-accent);
  color: var(--color-accent-ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: .04em;
  transform: translateY(-200%);
  transition: transform 150ms linear;
}
.skip-link:focus { transform: translateY(0); }

/* ---------- 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
}

.topbar {
  position: relative;
  background-color: color-mix(in srgb, var(--color-surface) 84%, transparent);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}
.topbar::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background-image: linear-gradient(90deg,
    transparent 0%,
    color-mix(in srgb, var(--color-primary) 60%, transparent) 18%,
    color-mix(in srgb, var(--color-line) 85%, transparent) 56%,
    transparent 100%);
}

.topbar__inner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  max-width: var(--container);
  min-height: var(--topbar-h);
  margin-inline: auto;
  padding: var(--space-2) var(--gutter);
}

.scroll-progress {
  position: absolute;
  inset: auto 0 0 0;
  z-index: 2;
  height: 2px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background-image: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  pointer-events: none;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
  min-width: 0;
  border-radius: var(--radius-md);
}
.brand__mark {
  position: relative;
  flex: none;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background-color: var(--color-surface-deep);
  background-image:
    radial-gradient(circle at 31% 36%, var(--color-primary-ink) 0 4px, transparent 4.6px),
    radial-gradient(circle at 69% 36%, var(--color-primary-ink) 0 4px, transparent 4.6px);
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--color-primary) 70%, transparent),
    0 0 16px color-mix(in srgb, var(--color-primary) 26%, transparent);
}
.brand__mark::after {
  content: "";
  position: absolute;
  inset: auto 33% 15% 33%;
  height: 6px;
  border-radius: var(--radius-pill);
  background-color: var(--color-accent);
  opacity: .9;
}
.brand__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.brand__name {
  color: var(--color-ink);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.12;
  letter-spacing: var(--tracking-heading);
}
.brand__tagline {
  overflow: hidden;
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.3;
  letter-spacing: .04em;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.brand:hover .brand__name { color: var(--color-primary-ink); }

.topbar__actions {
  display: flex;
  flex: none;
  align-items: center;
  gap: var(--space-2);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: 9px 16px;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background-color: transparent;
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: .01em;
  text-align: center;
  cursor: pointer;
  transition: background-color 140ms linear, border-color 140ms linear,
    color 140ms linear, box-shadow 140ms linear, transform 140ms linear;
}
.btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
  box-shadow: 0 0 18px color-mix(in srgb, var(--color-primary) 30%, transparent);
  transform: translateY(-1px);
}
.btn--primary {
  border-color: color-mix(in srgb, var(--color-primary) 78%, var(--color-primary-ink));
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
  box-shadow: 0 0 22px color-mix(in srgb, var(--color-primary) 36%, transparent);
}
.btn--primary:hover {
  border-color: var(--color-accent);
  background-color: color-mix(in srgb, var(--color-primary) 84%, var(--color-primary-ink));
  color: var(--color-primary-ink);
  box-shadow: 0 0 26px color-mix(in srgb, var(--color-primary) 50%, transparent);
}
.btn--quiet {
  border-color: color-mix(in srgb, var(--color-line) 90%, transparent);
  color: var(--color-ink-soft);
}
.btn--quiet:hover {
  background-color: var(--color-surface-alt);
  color: var(--color-ink);
}
.btn--block { width: 100%; }

/* ---------- 移动抽屉按钮 ---------- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: var(--space-1);
  padding: 9px 14px;
  border: var(--border-thin) solid color-mix(in srgb, var(--color-primary) 55%, transparent);
  border-radius: var(--radius-md);
  background-color: var(--color-primary-soft);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .1em;
  cursor: pointer;
  transition: border-color 140ms linear, box-shadow 140ms linear, color 140ms linear;
}
.nav-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
  box-shadow: 0 0 18px color-mix(in srgb, var(--color-primary) 34%, transparent);
}
.nav-toggle__bars {
  flex: none;
  width: 16px;
  height: 10px;
  background-image: repeating-linear-gradient(180deg,
    var(--color-accent) 0 2px, transparent 2px 5px);
}
.nav-toggle[aria-expanded="true"] {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ---------- 侧边轨道导航 ---------- */
.nav-rail {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 55;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  width: var(--rail-w);
  padding: calc(var(--topbar-h) + var(--space-3)) var(--space-2) var(--space-4);
  overflow-y: auto;
  overscroll-behavior: contain;
  background-color: color-mix(in srgb, var(--color-surface-deep) 62%, var(--color-surface));
}
.nav-rail__eyebrow {
  margin: 0;
  padding-inline: var(--space-2);
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .16em;
  text-transform: uppercase;
}
.nav-rail__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav-rail__item { margin: 0; }

.nav-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px var(--space-2);
  border: var(--border-thin) solid transparent;
  border-radius: var(--radius-md);
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
}
.nav-link__no {
  flex: none;
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .1em;
}
.nav-link__label { min-width: 0; }
.nav-link:hover {
  border-color: color-mix(in srgb, var(--color-primary) 58%, transparent);
  background-color: var(--color-surface-alt);
  color: var(--color-ink);
  box-shadow: 0 0 18px color-mix(in srgb, var(--color-primary) 22%, transparent);
}
.nav-link[aria-current="page"] {
  border-color: var(--color-primary);
  background-color: var(--color-primary-soft);
  color: var(--color-primary-ink);
  box-shadow: 0 0 22px color-mix(in srgb, var(--color-primary) 30%, transparent);
}
.nav-link[aria-current="page"] .nav-link__no { color: var(--color-accent); }

.nav-rail__foot {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: auto;
  padding: var(--space-3) var(--space-2) 0;
}
.rail-link {
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
}
.rail-link:hover { color: var(--color-accent); }
.rail-note {
  margin: var(--space-1) 0 0;
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .06em;
}

.nav-scrim { display: none; }

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  padding: var(--space-8) 0 var(--space-6);
  background-color: var(--color-surface);
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background-image: linear-gradient(90deg,
    transparent 0%,
    color-mix(in srgb, var(--color-line) 92%, transparent) 22%,
    color-mix(in srgb, var(--color-primary) 50%, transparent) 50%,
    color-mix(in srgb, var(--color-line) 92%, transparent) 78%,
    transparent 100%);
}

.footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}
.footer__brand {
  margin: 0 0 var(--space-1);
  color: var(--color-ink);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
}
.footer__line {
  margin: 0 0 var(--space-3);
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
}

.footer__cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4) var(--space-3);
}
.footer__col-title {
  margin: 0 0 var(--space-2);
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .14em;
  text-transform: uppercase;
}
.footer__col ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer__col li { margin-bottom: 6px; }
.footer__col a {
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
}
.footer__col a:hover { color: var(--color-accent); }

.footer__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-1) var(--space-3);
  margin-top: var(--space-6);
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid color-mix(in srgb, var(--color-line) 60%, transparent);
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .04em;
}
.footer__meta p { margin: 0; }
.footer__channels { flex: 1 1 320px; }
.footer__legal { flex: 0 1 auto; }

/* ---------- 容器与节奏 ---------- */
.shell {
  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); }

.prose { max-width: var(--measure); }
.prose p,
.prose li { color: var(--color-ink); }
.prose a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.prose a:hover { text-decoration-thickness: 2px; }

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

/* ---------- 区块抬头 ---------- */
.section-head {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}
.section-head h2,
.section-head h3 { margin: 0; }
.section-head__eyebrow {
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .16em;
  text-transform: uppercase;
}
.section-head__note {
  max-width: var(--measure);
  margin: 0;
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 var(--space-3);
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .08em;
}
.breadcrumb a { color: var(--color-ink-soft); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb__sep { color: color-mix(in srgb, var(--color-primary) 70%, transparent); }

/* ---------- 资料卡 ---------- */
.card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  border: var(--border-thin) solid transparent;
  border-radius: var(--radius-md);
  background-color: var(--color-surface-alt);
  transition: background-color 150ms linear, border-color 150ms linear,
    box-shadow 150ms linear, transform 150ms linear;
}
.card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--color-primary) 60%, transparent);
  background-color: var(--color-surface-deep);
  box-shadow: 0 0 24px color-mix(in srgb, var(--color-primary) 26%, transparent);
}
.card__title {
  margin: 0;
  font-size: var(--text-lg);
}
.card__meta {
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .08em;
}
.card__body {
  color: var(--color-ink-soft);
  font-size: var(--text-base);
}

/* ---------- 折叠档案卡 ---------- */
.fold {
  border: var(--border-thin) solid transparent;
  border-radius: var(--radius-md);
  background-color: var(--color-surface-alt);
  transition: background-color 150ms linear, border-color 150ms linear,
    box-shadow 150ms linear;
}
.fold + .fold { margin-top: var(--space-2); }
.fold > summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3);
  color: var(--color-ink);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  cursor: pointer;
  list-style: none;
}
.fold > summary::-webkit-details-marker { display: none; }
.fold > summary::after {
  content: "＋";
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}
.fold[open] {
  border-color: color-mix(in srgb, var(--color-primary) 52%, transparent);
  background-color: var(--color-surface-deep);
  box-shadow: 0 0 26px color-mix(in srgb, var(--color-primary) 20%, transparent);
}
.fold[open] > summary::after {
  content: "－";
  color: var(--color-accent);
}
.fold__body {
  padding: 0 var(--space-3) var(--space-3);
  color: var(--color-ink-soft);
}
.fold__body > *:last-child { margin-bottom: 0; }

/* ---------- 标签 ---------- */
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border: var(--border-thin) solid color-mix(in srgb, var(--color-line) 90%, transparent);
  border-radius: var(--radius-pill);
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.tag--key {
  border-color: color-mix(in srgb, var(--color-primary) 70%, transparent);
  color: var(--color-ink);
}
.tag--accent {
  border-color: var(--color-accent);
  background-color: var(--color-accent);
  color: var(--color-accent-ink);
}

/* ---------- 标签过滤 ---------- */
.filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}
.filter__btn {
  padding: 7px 13px;
  border: var(--border-thin) solid color-mix(in srgb, var(--color-line) 92%, transparent);
  border-radius: var(--radius-pill);
  background-color: transparent;
  color: var(--color-ink-soft);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .08em;
  cursor: pointer;
  transition: background-color 140ms linear, border-color 140ms linear,
    color 140ms linear;
}
.filter__btn:hover {
  border-color: var(--color-primary);
  color: var(--color-ink);
}
.filter__btn[aria-pressed="true"] {
  border-color: var(--color-accent);
  background-color: var(--color-accent);
  color: var(--color-accent-ink);
}
[data-filter-item][data-hidden="true"] { display: none; }

/* ---------- 数字块 ---------- */
.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.stat__value {
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: 1.05;
  letter-spacing: -.01em;
}
.stat--display .stat__value { font-size: var(--text-figure); }
.stat__label {
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* ---------- 强对比区块（全站仅 2–3 处） ---------- */
.panel-contrast {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}
.panel-contrast h2,
.panel-contrast h3,
.panel-contrast h4 { color: var(--color-contrast-ink); }
.panel-contrast p,
.panel-contrast li { color: var(--color-contrast-ink); }
.panel-contrast a { color: var(--color-contrast-accent); }
.panel-contrast a:hover { text-decoration: underline; text-underline-offset: 3px; }
.panel-contrast strong { color: var(--color-contrast-accent); }
.panel-contrast .stat__value { color: var(--color-contrast-ink); }
.panel-contrast .stat__label {
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}
.panel-contrast .tag {
  border-color: var(--color-contrast-line);
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}
.panel-contrast .card {
  background-color: color-mix(in srgb, var(--color-contrast-ink) 6%, transparent);
}
.panel-contrast .card__body,
.panel-contrast .card__meta { color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent); }

/* ---------- 数据表 ---------- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-base);
}
.data-table th,
.data-table td {
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
.data-table thead th {
  background-color: var(--color-surface-deep);
  color: var(--color-ink-soft);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.data-table tbody tr { background-color: color-mix(in srgb, var(--color-surface-alt) 55%, transparent); }
.data-table tbody tr:nth-child(even) { background-color: transparent; }
.data-table tbody tr:hover { background-color: var(--color-surface-deep); }
.data-table td.is-num,
.data-table th.is-num { font-family: var(--font-mono); text-align: right; }

.panel-contrast .data-table thead th {
  background-color: color-mix(in srgb, var(--color-contrast-ink) 8%, transparent);
  color: var(--color-contrast-ink);
}
.panel-contrast .data-table tbody tr {
  background-color: transparent;
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
}
.panel-contrast .data-table tbody tr:nth-child(even) { background-color: transparent; }

/* ---------- 图片容器（不同比例混排，打破网格） ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  border: var(--border-thin) solid color-mix(in srgb, var(--color-line) 80%, transparent);
  border-radius: var(--radius-md);
  background-color: var(--color-surface-deep);
}
.media-frame img,
.media-frame svg,
.media-frame video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame--wide { aspect-ratio: 16 / 9; }
.media-frame--slim { aspect-ratio: 21 / 9; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame--overlay::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--overlay-scrim);
}
.media-frame__caption {
  position: absolute;
  inset: auto var(--space-2) var(--space-2) var(--space-2);
  z-index: 1;
  color: var(--color-contrast-ink);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: .06em;
}

/* ---------- 旁注 ---------- */
.aside-note {
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background-color: var(--color-primary-soft);
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
}
.aside-note strong { color: var(--color-ink); }
.aside-note p:last-child { margin-bottom: 0; }

/* ---------- 焦点反馈强化 ---------- */
.btn:focus-visible,
.nav-toggle:focus-visible,
.filter__btn:focus-visible,
.fold > summary:focus-visible,
.nav-link:focus-visible,
.rail-link:focus-visible,
.footer__col a:focus-visible,
.brand:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
  box-shadow: var(--shadow-2);
}

/* ---------- 桌面：为主内容让出轨道宽度 ---------- */
@media (min-width: 1024px) {
  body { padding-left: var(--rail-w); }
}

@media (min-width: 1024px) and (max-width: 1279px) {
  :root { --rail-w: 196px; }
}

@media (min-width: 768px) {
  .footer__inner { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: var(--space-8); }
  .footer__cols { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .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; }
}

/* ---------- 移动端：轨道回归抽屉 ---------- */
@media (max-width: 1023px) {
  .nav-toggle { display: inline-flex; }

  .nav-rail {
    z-index: 70;
    width: min(84vw, 330px);
    padding-top: var(--space-4);
    transform: translateX(-102%);
    transition: transform 180ms linear;
  }
  .nav-rail[data-open] { transform: translateX(0); }

  .nav-scrim {
    position: fixed;
    inset: 0;
    z-index: 65;
    display: block;
    background-color: color-mix(in srgb, var(--color-surface) 74%, transparent);
    -webkit-backdrop-filter: blur(3px);
    backdrop-filter: blur(3px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 160ms linear, visibility 160ms linear;
  }
  .nav-scrim[data-open] {
    opacity: 1;
    visibility: visible;
  }

  html.nav-open { overflow: hidden; }
}

@media (max-width: 639px) {
  .brand__tagline { display: none; }
  .topbar__actions .btn--quiet { display: none; }
  .topbar__inner { gap: var(--space-2); padding-inline: var(--space-2); }
  .footer__meta { flex-direction: column; align-items: flex-start; }
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .btn:hover,
  .card:hover,
  .nav-link:hover { transform: none; }
  .nav-rail { transition: none; }
}