/* =========================================================
   意昂体育 · Site Kit /assets/site.css
   夜间赛场指挥台：深墨绿舞台 + 荧光线 + 米白纸面
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 148px;
}

body, h1, h2, h3, h4, h5, h6, p, ul, ol, li, figure, blockquote, dl, dd, table {
  margin: 0;
}

ul, ol { padding: 0; list-style: none; }
img, svg, video, picture { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; background: none; border: 0; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }
[hidden] { display: none !important; }

/* ---------- 2. 变量 ---------- */
:root {
  --ink: #071A15;
  --panel: #0F2B23;
  --pine: #1D5A48;
  --cyan: #00F0C8;
  --orange: #FF7A2F;
  --paper: #F4EBDD;
  --char: #222826;
  --mist: #B9C8C1;
  --faint: #8EA79D;
  --lime: #D9FF4F;

  --line: rgba(185, 200, 193, 0.2);
  --line-soft: rgba(185, 200, 193, 0.12);
  --line-strong: rgba(0, 240, 200, 0.28);

  --font-display: "Barlow Condensed", "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", "Noto Sans Mono CJK SC", ui-monospace, monospace;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;

  --wrap-max: 1320px;
  --gut: clamp(16px, 3vw, 40px);
  --radius: 2px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --shadow-paper: 6px 6px 0 rgba(0, 240, 200, 0.14);
  --shadow-deep: 0 18px 40px rgba(0, 0, 0, 0.42);
}

/* ---------- 3. 中文排版与页面底 ---------- */
body {
  min-height: 100vh;
  background-color: var(--ink);
  background-image:
    radial-gradient(1100px 620px at 8% -12%, rgba(0, 240, 200, 0.09), transparent 62%),
    radial-gradient(920px 560px at 104% 2%, rgba(255, 122, 47, 0.08), transparent 60%),
    repeating-linear-gradient(90deg, rgba(185, 200, 193, 0.05) 0 1px, transparent 1px 104px),
    repeating-linear-gradient(0deg, rgba(185, 200, 193, 0.05) 0 1px, transparent 1px 104px);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.012em;
  -webkit-font-smoothing: antialiased;
}

@media (min-width: 1100px) {
  body { font-size: 17px; }
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.005em;
  text-wrap: balance;
}

p { text-wrap: pretty; }

::selection {
  background: var(--cyan);
  color: #04140f;
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 1px;
}

#main-content { display: block; min-height: 1px; }
#main-content:focus { outline: none; }
html.is-nav-open { overflow: hidden; }

/* ---------- 4. 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 400;
  padding: 10px 18px;
  background: var(--cyan);
  color: #04140f;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.08em;
  border-radius: var(--radius);
  transform: translateY(-220%);
  transition: transform 0.22s var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible { transform: translateY(0); }

/* ---------- 5. 容器与栅格 ---------- */
.wrap {
  width: min(calc(100% - var(--gut) * 2), var(--wrap-max));
  margin-inline: auto;
}

.rail-layout {
  display: grid;
  grid-template-columns: minmax(200px, 264px) minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 56px);
  align-items: start;
}

.canvas { min-width: 0; }

.grid-2,
.grid-3 {
  display: grid;
  gap: clamp(16px, 2vw, 28px);
}

@media (min-width: 760px) {
  .grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.flow > * + * { margin-top: 18px; }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: 0; }
.dim { color: var(--faint); }

/* ---------- 6. 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
}

/* 6.1 上层品牌轨道 */
.header-top {
  background: var(--ink);
  border-bottom: 1px solid var(--line-soft);
}

.header-top__inner {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 32px);
  padding-block: 14px;
  transition: padding-block 0.26s var(--ease);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex: none;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: none;
  background: var(--cyan);
  color: #04140f;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 0;
  border-radius: var(--radius);
  box-shadow: 3px 3px 0 rgba(255, 122, 47, 0.55);
}

.brand__text { display: block; min-width: 0; }

.brand__name {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.1;
  letter-spacing: 0.06em;
  color: var(--paper);
}

.brand__sub {
  display: block;
  max-height: 22px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.14em;
  color: var(--faint);
  transition: max-height 0.26s var(--ease), opacity 0.2s var(--ease);
}

.quick-index {
  display: none;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.quick-index__link {
  display: inline-block;
  padding: 7px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.quick-index__link:hover {
  color: var(--cyan);
  border-color: var(--line-strong);
  background: rgba(0, 240, 200, 0.08);
}

.header-top__meta {
  display: none;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--faint);
  white-space: nowrap;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  animation: dot-pulse 2.4s infinite;
}

@keyframes dot-pulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 240, 200, 0.5); }
  70% { box-shadow: 0 0 0 8px rgba(0, 240, 200, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 240, 200, 0); }
}

/* 6.2 下层栏目带 */
.header-nav {
  position: relative;
  background: var(--panel);
  border-bottom: 1px solid var(--line-strong);
  transition: box-shadow 0.26s var(--ease);
}

.header-nav__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 56px;
}

.primary-nav { flex: 1 1 auto; min-width: 0; }

.primary-nav__list {
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
  gap: 2px;
}

.primary-nav__list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 12px 14px 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.08em;
  color: var(--mist);
  border-bottom: 2px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.primary-nav__list a:hover,
.primary-nav__list a:focus-visible {
  color: var(--paper);
  background: rgba(0, 240, 200, 0.07);
}

.nav-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--faint);
}

.nav-label { display: inline-block; }

.primary-nav__list a[aria-current="page"] {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.primary-nav__list a[aria-current="page"] .nav-num { color: var(--cyan); }

.header-nav__cta {
  flex: none;
  padding: 9px 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.14em;
  color: #1a0d05;
  background: var(--orange);
  border-radius: var(--radius);
  transition: transform 0.2s var(--ease), background 0.2s var(--ease);
}

.header-nav__cta:hover {
  background: #ff9152;
  transform: translateY(-1px);
}

.scroll-meter {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--lime));
  transform: scaleX(var(--progress, 0));
  transform-origin: left center;
  transition: transform 0.12s linear;
  pointer-events: none;
}

/* 6.3 移动按钮与遮罩 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  position: relative;
  z-index: 3;
  background: var(--pine);
  color: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.nav-toggle__bars {
  display: grid;
  gap: 4px;
  width: 18px;
}

.nav-toggle__bars i {
  display: block;
  height: 2px;
  background: var(--cyan);
  transition: transform 0.22s var(--ease), opacity 0.22s var(--ease);
}

.nav-toggle__label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.16em;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.nav-scrim {
  position: fixed;
  inset: 0;
  z-index: 1;
  background: rgba(4, 20, 15, 0.74);
}

/* 6.4 收窄态 */
.site-header[data-condensed] .header-top__inner { padding-block: 7px; }
.site-header[data-condensed] .brand__sub { max-height: 0; opacity: 0; }
.site-header[data-condensed] .header-nav { box-shadow: 0 14px 34px rgba(0, 0, 0, 0.46); }
.site-header[data-condensed] .brand__mark { box-shadow: 2px 2px 0 rgba(255, 122, 47, 0.55); }

/* 6.5 桌面扩展 */
@media (min-width: 1024px) {
  .quick-index { display: flex; }
}

@media (min-width: 1180px) {
  .header-top__meta { display: inline-flex; }
}

/* 6.6 移动端导航 */
@media (max-width: 960px) {
  .header-top__inner {
    flex-wrap: wrap;
    row-gap: 8px;
    padding-block: 10px;
  }

  .quick-index { display: none; }
  .header-top__meta { display: inline-flex; order: 3; }

  .primary-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
    width: min(86vw, 350px);
    padding: 92px 20px 40px;
    background: var(--panel);
    border-left: 1px solid var(--line-strong);
    box-shadow: -20px 0 48px rgba(0, 0, 0, 0.5);
    overflow-y: auto;
    transform: translateX(103%);
    transition: transform 0.3s var(--ease);
  }

  .primary-nav[data-open="true"] { transform: translateX(0); }
  .primary-nav[data-open="false"] { transform: translateX(103%); }

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

  .primary-nav__list a {
    padding: 15px 10px;
    font-size: 21px;
    letter-spacing: 0.06em;
    border-bottom: 1px solid var(--line-soft);
    border-left: 3px solid transparent;
  }

  .primary-nav__list a[aria-current="page"] {
    border-bottom-color: var(--line-soft);
    border-left-color: var(--cyan);
    background: rgba(0, 240, 200, 0.09);
  }

  .nav-num { font-size: 12px; }
  .header-nav__cta { display: none; }
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .header-nav__inner { min-height: 54px; }
}

@media (min-width: 961px) {
  .primary-nav[data-open] { transform: none; }
  .nav-scrim { display: none !important; }
}

/* ---------- 7. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 8vw, 108px);
  background: linear-gradient(180deg, rgba(15, 43, 35, 0.94), rgba(7, 26, 21, 0.99));
  border-top: 1px solid var(--line-strong);
}

.site-footer::before {
  content: "";
  display: block;
  height: 8px;
  background: repeating-linear-gradient(
    90deg,
    var(--cyan) 0 18px,
    rgba(0, 240, 200, 0) 18px 46px,
    var(--orange) 46px 60px,
    rgba(255, 122, 47, 0) 60px 92px
  );
  opacity: 0.62;
}

.footer-stack { padding-block: clamp(28px, 4vw, 54px) 28px; }

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.footer-card {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--panel);
  color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.footer-card--brand {
  background: var(--paper);
  color: var(--char);
  border-color: #0b1f19;
  box-shadow: var(--shadow-paper);
}

.footer-card--contact {
  background: var(--pine);
  border-color: rgba(0, 240, 200, 0.34);
}

.footer-card--legal { background: #0b211b; }

.footer-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: #4a5b54;
}

.footer-brand {
  margin-top: 10px;
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.24;
  letter-spacing: 0.02em;
  color: var(--char);
}

.footer-tagline {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: #3f4c46;
}

.footer-meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: #4a5b54;
}

.footer-icp {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--char);
}

.footer-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.footer-contact {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.footer-contact li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(244, 235, 221, 0.24);
}

.footer-contact li:last-child { border-bottom: 0; padding-bottom: 0; }

.footer-contact__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.footer-contact__val {
  font-size: 14px;
  line-height: 1.6;
  word-break: break-word;
  color: var(--paper);
}

.footer-links {
  display: grid;
  gap: 2px;
  margin-top: 14px;
}

.footer-links a {
  display: inline-block;
  padding: 5px 0;
  font-size: 14px;
  color: var(--mist);
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease), border-color 0.2s var(--ease);
}

.footer-links a:hover {
  color: var(--cyan);
  padding-left: 6px;
  border-bottom-color: rgba(0, 240, 200, 0.4);
}

.footer-version {
  margin-top: 18px;
  display: inline-block;
  padding: 4px 10px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink);
  background: var(--lime);
  border-radius: var(--radius);
}

.footer-note {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--faint);
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 26px;
  margin-top: clamp(24px, 3vw, 36px);
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--faint);
}

.footer-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.legend__item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.legend__dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mist);
}

.legend__dot--cyan { background: var(--cyan); }
.legend__dot--orange { background: var(--orange); }
.legend__dot--lime { background: var(--lime); }

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-base { font-size: 11px; }
}

/* ---------- 8. 章节与标题层级 ---------- */
.section { padding-block: clamp(48px, 6.4vw, 88px); }
.section--tight { padding-block: clamp(32px, 4vw, 56px); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 32px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--cyan);
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--orange);
}

.display {
  font-size: clamp(44px, 8vw, 112px);
  line-height: 0.94;
  letter-spacing: -0.012em;
}

.display--sm { font-size: clamp(34px, 5vw, 64px); }

.lead {
  font-size: clamp(16px, 1.4vw, 19px);
  line-height: 1.8;
  color: var(--mist);
  max-width: 68ch;
}

.prose {
  max-width: 70ch;
  line-height: 1.8;
  color: var(--mist);
}

.prose > * + * { margin-top: 18px; }
.prose strong { color: var(--paper); font-weight: 600; }
.prose a {
  color: var(--cyan);
  border-bottom: 1px solid rgba(0, 240, 200, 0.45);
}

.rule {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, var(--line-strong), var(--line) 42%, transparent);
}

/* ---------- 9. 纸面、面板、比分牌 ---------- */
.sheet {
  padding: clamp(22px, 3vw, 38px);
  background: var(--paper);
  color: var(--char);
  border: 1px solid #0b1f19;
  border-radius: var(--radius);
  box-shadow: var(--shadow-paper);
}

.sheet h2, .sheet h3 { color: var(--char); }
.sheet a { color: #0b6a52; border-bottom: 1px solid rgba(11, 106, 82, 0.4); }

.panel {
  padding: clamp(20px, 2.6vw, 32px);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.panel--edge { border-color: var(--line-strong); }

.scoreboard {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.scoreboard__value {
  font-family: var(--font-mono);
  font-size: clamp(30px, 4.4vw, 52px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

.scoreboard__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--faint);
  text-transform: uppercase;
}

.coord {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* ---------- 10. 标签与按钮 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  white-space: nowrap;
}

.tag--cyan { color: var(--ink); background: var(--cyan); border-color: var(--cyan); }
.tag--orange { color: #1a0d05; background: var(--orange); border-color: var(--orange); }
.tag--lime { color: var(--ink); background: var(--lime); border-color: var(--lime); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.12em;
  line-height: 1.2;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.btn:hover { transform: translateY(-1px); }

.btn--primary { background: var(--cyan); color: #04140f; }
.btn--primary:hover { background: #4dffe0; }

.btn--accent { background: var(--orange); color: #1a0d05; }
.btn--accent:hover { background: #ff9152; }

.btn--ghost {
  background: transparent;
  color: var(--paper);
  border-color: rgba(185, 200, 193, 0.42);
}

.btn--ghost:hover { color: var(--cyan); border-color: var(--cyan); }

/* ---------- 11. 面包屑 ---------- */
.breadcrumbs {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--faint);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.breadcrumbs li { display: inline-flex; align-items: center; gap: 6px; }

.breadcrumbs li + li::before {
  content: "/";
  color: var(--pine);
}

.breadcrumbs a { transition: color 0.2s var(--ease); }
.breadcrumbs a:hover { color: var(--cyan); }
.breadcrumbs [aria-current="page"] { color: var(--mist); }

/* ---------- 12. 表格 ---------- */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(15, 43, 35, 0.7);
}

.data-table {
  min-width: 560px;
  font-size: 14px;
}

.data-table caption {
  padding: 12px 16px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--faint);
  border-bottom: 1px solid var(--line);
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
}

.data-table thead th {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  background: rgba(0, 240, 200, 0.06);
  white-space: nowrap;
}

.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table tbody tr:hover td { background: rgba(0, 240, 200, 0.05); }
.data-table td.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; color: var(--paper); }

/* ---------- 13. 图片容器 ---------- */
.media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media--wide { aspect-ratio: 21 / 9; }
.media--square { aspect-ratio: 1 / 1; }
.media--tall { aspect-ratio: 4 / 5; }

.media--empty::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(135deg, rgba(0, 240, 200, 0.08) 0 10px, transparent 10px 22px),
    radial-gradient(120% 120% at 100% 0%, rgba(255, 122, 47, 0.14), transparent 60%);
}

.media__caption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--faint);
}

.media-grid {
  display: grid;
  gap: clamp(12px, 1.6vw, 20px);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

/* ---------- 14. 侧边轨道 ---------- */
.rail {
  position: sticky;
  top: 132px;
  display: grid;
  gap: 14px;
  padding-right: 18px;
  border-right: 1px solid var(--line);
}

.rail__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--faint);
}

.rail__list { display: grid; gap: 2px; }

.rail__link {
  display: block;
  padding: 8px 10px 8px 12px;
  font-size: 14px;
  color: var(--mist);
  border-left: 2px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.rail__link:hover { color: var(--paper); background: rgba(0, 240, 200, 0.06); }

.rail__link[aria-current] {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(0, 240, 200, 0.08);
}

@media (max-width: 900px) {
  .rail-layout { grid-template-columns: minmax(0, 1fr); }
  .rail {
    position: static;
    padding-right: 0;
    padding-bottom: 12px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .rail__list {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 4px;
  }
  .rail__link {
    white-space: nowrap;
    border-left: 0;
    border-bottom: 2px solid transparent;
    background: rgba(15, 43, 35, 0.8);
    border-radius: var(--radius);
  }
  .rail__link[aria-current] {
    border-bottom-color: var(--cyan);
    border-left-color: transparent;
  }
}

/* ---------- 15. 滚动显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.52s var(--ease), transform 0.52s var(--ease);
  will-change: opacity, transform;
}

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

/* ---------- 16. 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;
  }

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

  .dot { animation: none !important; }
  .skip-link { transition: none; }
  .primary-nav { transition: none; }
}