/* =========================================================
   星空体育 · 共享样式表 /assets/site.css
   骨架：品牌轨道 + 正文列 + 底部悬浮舱
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 20px);
}

body, h1, h2, h3, h4, p, ul, ol, li, figure, blockquote, dl, dd { margin: 0; }
ul, ol { list-style: none; padding: 0; }
img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; }
[hidden] { display: none !important; }

:focus-visible {
  outline: 2px solid #35E0D0;
  outline-offset: 3px;
  border-radius: 1px;
}

/* ---------- 2. 设计令牌 ---------- */
:root {
  --c-void: #070B1F;
  --c-cabin: #101A3D;
  --c-nebula: #3B2A6B;
  --c-cyan: #35E0D0;
  --c-orange: #FF8A3D;
  --c-orbit: #2A3350;
  --c-line: #4A5878;
  --c-stardust: #E8EDF7;
  --c-body: #D5DDF0;
  --c-observ: #9AA6BF;
  --c-signal: #4CD07D;

  --rail: 224px;
  --header-h: 72px;
  --dock-h: 62px;
  --maxw: 1440px;
  --gut: clamp(20px, 4vw, 44px);
  --gap: clamp(16px, 2.4vw, 32px);
  --radius: 2px;

  --font-sans: "Noto Sans SC", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (max-width: 1079px) {
  :root { --header-h: 64px; }
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  background-color: var(--c-void);
  color: var(--c-stardust);
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.01em;
  overflow-x: hidden;
}

@media (min-width: 1080px) {
  body { padding-inline-start: var(--rail); }
}

/* 观测台网格 + 扫描光带 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(74, 88, 120, 0.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(74, 88, 120, 0.11) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,0.9), rgba(0,0,0,0.32) 58%, transparent);
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.9), rgba(0,0,0,0.32) 58%, transparent);
}

body::after {
  content: "";
  position: fixed;
  inset-inline: 0;
  top: -32vh;
  height: 32vh;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 0%, rgba(53, 224, 208, 0.06) 62%, rgba(53, 224, 208, 0.14) 100%);
  animation: rail-scan 12s linear infinite;
}

@keyframes rail-scan {
  from { transform: translateY(0); }
  to   { transform: translateY(164vh); }
}

@keyframes status-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(76, 208, 125, 0.55); }
  70%  { box-shadow: 0 0 0 9px rgba(76, 208, 125, 0); }
  100% { box-shadow: 0 0 0 0 rgba(76, 208, 125, 0); }
}

#main-content { position: relative; z-index: 1; }

/* ---------- 4. 文字工具 ---------- */
.display {
  font-size: clamp(48px, 9vw, 132px);
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: -0.02em;
}
.h1 {
  font-size: clamp(34px, 5.4vw, 72px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
}
.h2 {
  font-size: clamp(23px, 2.6vw, 36px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
}
.h3 {
  font-size: clamp(18px, 1.6vw, 22px);
  font-weight: 700;
  line-height: 1.4;
}
.lede {
  font-size: clamp(17px, 1.35vw, 20px);
  line-height: 1.8;
  color: #C7D1E6;
}
.eyebrow {
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.3em;
  color: var(--c-observ);
  text-transform: uppercase;
}
.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
  letter-spacing: -0.01em;
}
.muted { color: var(--c-observ); }
.prose { color: var(--c-body); }
.prose p + p { margin-top: 1.2em; }
.rule { height: 1px; border: 0; background: var(--c-line); }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--c-stardust);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.2;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.btn:hover { border-color: var(--c-cyan); color: var(--c-cyan); background: rgba(53, 224, 208, 0.08); }
.btn--primary { background: var(--c-cyan); border-color: var(--c-cyan); color: #04121A; font-weight: 700; }
.btn--primary:hover { background: #5CEBDE; border-color: #5CEBDE; color: #04121A; }
.btn--warm { background: var(--c-orange); border-color: var(--c-orange); color: #1A0C02; font-weight: 700; }
.btn--warm:hover { background: #FFA163; border-color: #FFA163; color: #1A0C02; }
.btn--ghost { border-color: var(--c-line); color: var(--c-observ); }
.btn--sm { padding: 8px 14px; font-size: 13px; }
.btn--block { width: 100%; }

/* ---------- 6. 状态与标签 ---------- */
.status-dot {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-signal);
  text-transform: uppercase;
}
.status-dot__pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-signal);
  animation: status-pulse 2.4s ease-out infinite;
}
.status-dot--sm { font-size: 11px; letter-spacing: 0.12em; }
.status-dot--sm .status-dot__pulse { width: 6px; height: 6px; }

.tag {
  display: inline-block;
  padding: 3px 8px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-observ);
  text-transform: uppercase;
}
.tag--live { color: var(--c-signal); border-color: rgba(76, 208, 125, 0.45); }
.tag--cyan { color: var(--c-cyan); border-color: rgba(53, 224, 208, 0.5); }
.tag--warm { color: var(--c-orange); border-color: rgba(255, 138, 61, 0.5); }

/* ---------- 7. 跳过链接与阅读进度 ---------- */
.skip-link {
  position: fixed;
  top: 8px;
  inset-inline-start: 12px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: var(--radius);
  background: var(--c-cyan);
  color: #04121A;
  font-size: 14px;
  font-weight: 700;
  transform: translateY(-180%);
  transition: transform 0.2s ease-out;
}
.skip-link:focus { transform: translateY(0); }

.scroll-progress {
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 2px;
  background: rgba(74, 88, 120, 0.28);
  overflow: hidden;
}
.scroll-progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-orange));
}

/* ---------- 8. 头部 ---------- */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 60;
}

@media (min-width: 1080px) {
  .site-header { inset-inline-start: var(--rail); }
}

.site-header__bar {
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header.is-solid .site-header__bar {
  background: rgba(16, 26, 61, 0.94);
  border-bottom-color: var(--c-line);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 32px);
  width: min(100%, var(--maxw));
  margin-inline: auto;
  padding-inline: var(--gut);
  height: var(--header-h);
}

.site-header__brand {
  font-size: 19px;
  font-weight: 900;
  letter-spacing: 0.14em;
  color: var(--c-stardust);
  white-space: nowrap;
}
@media (min-width: 1080px) { .site-header__brand { display: none; } }

.site-header__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-inline-start: auto;
}
@media (max-width: 760px) { .site-header__meta { display: none; } }

/* 品牌轨道 */
.brand-rail { display: none; }

@media (min-width: 1080px) {
  .brand-rail {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: var(--rail);
    padding: 24px 22px 26px;
    background: linear-gradient(180deg, #0A1030 0%, var(--c-cabin) 52%, #0A0E24 100%);
    border-inline-end: 1px solid var(--c-line);
    z-index: 80;
    overflow: hidden;
  }
  .brand-rail::after {
    content: "";
    position: absolute;
    inset-inline-end: -1px;
    top: 14%;
    width: 1px;
    height: 24%;
    background: linear-gradient(180deg, transparent, var(--c-cyan), transparent);
  }
}

.brand-rail__mark {
  display: block;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--c-orbit);
}
.brand-rail__glyph {
  position: relative;
  display: block;
  width: 22px;
  height: 22px;
  margin-bottom: 18px;
  border: 1px solid var(--c-cyan);
  background: linear-gradient(135deg, rgba(53, 224, 208, 0.35), transparent 62%);
  transform: rotate(45deg);
}
.brand-rail__glyph::after {
  content: "";
  position: absolute;
  inset: 5px;
  background: var(--c-cyan);
  opacity: 0.85;
}
.brand-rail__name {
  display: block;
  font-size: 22px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0.16em;
  color: var(--c-stardust);
}
.brand-rail__en {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--c-observ);
}
.brand-rail__tagline {
  margin-top: 26px;
  writing-mode: vertical-rl;
  font-size: 13px;
  line-height: 1;
  letter-spacing: 0.3em;
  color: var(--c-observ);
  max-height: 44vh;
  overflow: hidden;
}
.brand-rail__scale {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 9px;
  margin-top: auto;
  margin-bottom: 18px;
}
.brand-rail__scale span {
  display: block;
  width: 14px;
  height: 1px;
  background: var(--c-line);
}
.brand-rail__scale span:nth-child(3n + 1) { width: 34px; background: var(--c-cyan); opacity: 0.75; }
.brand-rail__scale span:nth-child(4n + 2) { width: 22px; }
.brand-rail__note {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--c-observ);
}

/* 导航 */
.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}
.site-nav__title { display: none; }
.site-nav__foot { display: none; }

.site-nav__link {
  position: relative;
  display: inline-block;
  padding: 10px 13px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--c-observ);
  transition: color 0.2s ease;
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 4px;
  height: 1px;
  background: var(--c-cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.24s ease-out;
}
.site-nav__link:hover { color: var(--c-stardust); }
.site-nav__link:hover::after { transform: scaleX(1); }
.site-nav__link[aria-current="page"] { color: var(--c-stardust); }
.site-nav__link[aria-current="page"]::after { transform: scaleX(1); background: var(--c-orange); }

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0 11px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  margin-inline-start: auto;
}
.site-header__meta + .nav-toggle { margin-inline-start: 0; }

.nav-toggle__line {
  display: block;
  height: 1.5px;
  background: var(--c-stardust);
  transition: transform 0.24s ease-out, opacity 0.2s ease-out;
}

/* 移动端导航抽屉 */
@media (max-width: 1079px) {
  .nav-toggle { display: inline-flex; }

  .site-header[data-open] .nav-toggle__line:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .site-header[data-open] .nav-toggle__line:nth-child(2) { opacity: 0; }
  .site-header[data-open] .nav-toggle__line:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

  .site-nav {
    position: fixed;
    left: 0;
    right: 0;
    top: var(--header-h);
    bottom: 0;
    z-index: 62;
    padding: 20px var(--gut) calc(var(--dock-h) + 72px);
    background: linear-gradient(180deg, #0A1030 0%, var(--c-void) 72%);
    border-top: 1px solid var(--c-line);
    overflow-y: auto;
    transform: translateX(105%);
    transition: transform 0.28s ease-out;
  }
  .site-header[data-open] .site-nav { transform: translateX(0); }

  .site-nav__title {
    display: block;
    margin-bottom: 14px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.28em;
    color: var(--c-cyan);
    text-transform: uppercase;
  }

  .site-nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav__link {
    display: block;
    padding: 15px 0;
    font-size: 21px;
    font-weight: 700;
    letter-spacing: 0.04em;
    border-bottom: 1px solid rgba(74, 88, 120, 0.4);
    color: var(--c-stardust);
  }
  .site-nav__link::after { left: 0; right: auto; width: 28px; bottom: 8px; }
  .site-nav__link[aria-current="page"] { color: var(--c-cyan); }

  .site-nav__foot {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 28px;
  }

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

/* ---------- 9. 页脚 ---------- */
.site-footer {
  position: relative;
  z-index: 1;
  margin-top: clamp(56px, 8vw, 120px);
  border-top: 1px solid var(--c-line);
  background:
    radial-gradient(120% 90% at 10% 0%, rgba(59, 42, 107, 0.55), transparent 62%),
    linear-gradient(180deg, #0A1030 0%, var(--c-void) 74%);
  padding: clamp(40px, 6vw, 80px) var(--gut) calc(var(--dock-h) + 52px);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: minmax(240px, 1.5fr) repeat(3, minmax(140px, 1fr));
  gap: clamp(28px, 3vw, 48px);
  width: min(100%, var(--maxw));
  margin-inline: auto;
  padding-bottom: clamp(28px, 4vw, 44px);
  border-bottom: 1px solid rgba(74, 88, 120, 0.5);
}

.site-footer__wordmark {
  font-size: clamp(38px, 5.5vw, 72px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--c-stardust);
}
.site-footer__wordmark::before {
  content: "";
  display: block;
  width: 26px;
  height: 2px;
  margin-bottom: 18px;
  background: var(--c-cyan);
}
.site-footer__tagline {
  margin-top: 14px;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--c-observ);
}
.site-footer__status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  font-size: 13px;
  color: var(--c-observ);
}

.footer-col__title {
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.26em;
  color: var(--c-cyan);
  text-transform: uppercase;
}
.footer-col__list { display: flex; flex-direction: column; gap: 10px; }
.footer-col__link {
  display: inline-block;
  font-size: 15px;
  color: #C7D1E6;
  transition: color 0.2s ease, transform 0.2s ease;
}
.footer-col__link:hover { color: var(--c-cyan); transform: translateX(3px); }

.site-footer__contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px 32px;
  width: min(100%, var(--maxw));
  margin: clamp(24px, 3vw, 38px) auto 0;
}
.contact-item { display: flex; flex-direction: column; gap: 6px; }
.contact-item__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--c-observ);
  text-transform: uppercase;
}
.contact-item__value {
  font-size: 15px;
  color: var(--c-stardust);
  word-break: break-word;
}

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 28px;
  width: min(100%, var(--maxw));
  margin: 26px auto 0;
  padding-top: 18px;
  border-top: 1px solid rgba(74, 88, 120, 0.5);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-observ);
}
.site-footer__icp { font-family: var(--font-mono); letter-spacing: 0.1em; }
.site-footer__legal-links { display: flex; flex-wrap: wrap; gap: 18px; }
.site-footer__legal-links .footer-col__link { font-size: 12px; }

/* ---------- 10. 底部悬浮舱 ---------- */
.dock {
  position: fixed;
  inset-inline: 0;
  bottom: 0;
  z-index: 90;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 var(--gut) 14px;
  pointer-events: none;
}
@media (min-width: 1080px) {
  .dock { padding-inline-start: calc(var(--gut) + var(--rail)); }
}
.dock__panel,
.dock__bar { pointer-events: auto; }

.dock__panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  width: min(640px, 100%);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  border-bottom: 0;
  border-radius: var(--radius) var(--radius) 0 0;
  transition: max-height 0.24s ease-out, opacity 0.2s ease-out, visibility 0s linear 0.24s;
}
.dock[data-open] .dock__panel {
  max-height: 260px;
  opacity: 1;
  visibility: visible;
  transition: max-height 0.24s ease-out, opacity 0.2s ease-out, visibility 0s linear 0s;
}

.dock__link {
  display: block;
  padding: 16px 18px;
  background: var(--c-cabin);
  transition: background-color 0.2s ease;
}
.dock__link:hover { background: #17244F; }
.dock__link-title {
  display: block;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-stardust);
}
.dock__link-note {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-observ);
}

.dock__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  width: min(640px, 100%);
  padding: 9px 10px 9px 16px;
  background: rgba(16, 26, 61, 0.96);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.dock__label {
  margin-inline-end: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--c-observ);
}
.dock__toggle {
  padding: 8px 16px;
  border-radius: var(--radius);
  background: var(--c-orange);
  color: #1A0C02;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: background-color 0.2s ease;
}
.dock__toggle:hover { background: #FFA163; }
.dock__top {
  padding: 8px 14px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  color: var(--c-observ);
  font-size: 13px;
  letter-spacing: 0.04em;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, color 0.2s ease, border-color 0.2s ease, visibility 0s linear 0.2s;
}
.dock__top.is-visible { opacity: 1; visibility: visible; transition-delay: 0s; }
.dock__top:hover { border-color: var(--c-cyan); color: var(--c-cyan); }

@media (max-width: 560px) {
  .dock__label { display: none; }
  .dock__panel { grid-template-columns: 1fr; }
  .dock__bar { padding: 8px; }
  .dock__toggle { flex: 1; text-align: center; }
}

/* ---------- 11. 布局与区块 ---------- */
.wrap {
  width: min(100%, var(--maxw));
  margin-inline: auto;
  padding-inline: var(--gut);
}
.page-top { padding-block-start: calc(var(--header-h) + clamp(28px, 5vw, 64px)); }

.section {
  position: relative;
  z-index: 1;
  padding-block: clamp(48px, 7vw, 104px);
  border-top: 1px solid rgba(74, 88, 120, 0.32);
}
.section:first-of-type { border-top: 0; }
.section--alt { background: linear-gradient(180deg, rgba(16, 26, 61, 0.85), rgba(7, 11, 31, 0) 130%); }
.section--nebula { background: radial-gradient(90% 120% at 100% 0%, rgba(59, 42, 107, 0.5), transparent 62%); }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px;
  margin-bottom: clamp(20px, 3vw, 36px);
}
.section__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-cyan);
}

.grid { display: grid; gap: var(--gap); }
.grid--7-5 { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.grid--8-4 { grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

@media (max-width: 900px) {
  .grid--7-5,
  .grid--8-4,
  .grid--2 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 12. 内容组件 ---------- */
.panel {
  padding: clamp(20px, 2.4vw, 32px);
  background: var(--c-cabin);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}
.panel--flat { background: rgba(16, 26, 61, 0.45); }
.panel--warm {
  border-color: rgba(255, 138, 61, 0.55);
  background: linear-gradient(180deg, rgba(255, 138, 61, 0.12), rgba(16, 26, 61, 0.92));
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 0;
  border-top: 1px solid var(--c-line);
}
.stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 3.4vw, 44px);
  font-weight: 700;
  line-height: 1;
  color: var(--c-cyan);
}
.stat__value--warm { color: var(--c-orange); }
.stat__label {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-observ);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: rgba(16, 26, 61, 0.55);
}
.data-table { width: 100%; min-width: 520px; font-size: 15px; }
.data-table th,
.data-table td {
  padding: 13px 16px;
  text-align: left;
  border-bottom: 1px solid rgba(74, 88, 120, 0.5);
}
.data-table thead th {
  background: var(--c-orbit);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--c-observ);
  text-transform: uppercase;
}
.data-table tbody tr:hover { background: rgba(53, 224, 208, 0.06); }
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table .num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.data-table__rank { width: 56px; color: var(--c-orange); }

/* 图片容器基础规则 */
.media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: linear-gradient(150deg, var(--c-nebula) 0%, var(--c-void) 72%);
}
.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(74, 88, 120, 0.24) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(74, 88, 120, 0.18) 1px, transparent 1px);
  background-size: 48px 48px;
}
.media-frame__img,
.media-frame img {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame--16x9 { aspect-ratio: 16 / 9; }
.media-frame--4x3 { aspect-ratio: 4 / 3; }
.media-frame--1x1 { aspect-ratio: 1 / 1; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame--wide { aspect-ratio: 21 / 9; }
@media (max-width: 600px) {
  .media-frame--wide { aspect-ratio: 16 / 9; }
  .media-frame--tall { aspect-ratio: 4 / 5; }
}
.media-frame__caption {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  padding: 12px 16px;
  background: linear-gradient(180deg, transparent, rgba(7, 11, 31, 0.92));
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-observ);
}

/* 面包屑 */
.breadcrumb {
  padding-block: 14px;
  font-size: 13px;
  color: var(--c-observ);
}
.breadcrumb__list { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.breadcrumb__item { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumb__item::after { content: "/"; color: var(--c-line); }
.breadcrumb__item:last-child::after { content: ""; }
.breadcrumb__link { transition: color 0.2s ease; }
.breadcrumb__link:hover { color: var(--c-cyan); }
.breadcrumb__link[aria-current="page"] { color: var(--c-stardust); }

/* 可展开内容组 */
.accordion { border-top: 1px solid var(--c-line); }
.accordion__item { border-bottom: 1px solid var(--c-line); }
.accordion__trigger {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  width: 100%;
  padding: 20px 0;
  text-align: left;
  font-size: 17px;
  font-weight: 500;
  color: var(--c-stardust);
  transition: color 0.2s ease;
}
.accordion__trigger:hover { color: var(--c-cyan); }
.accordion__idx {
  flex: 0 0 auto;
  padding-top: 5px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-observ);
}
.accordion__mark {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-inline-start: auto;
  margin-top: 7px;
}
.accordion__mark::before,
.accordion__mark::after {
  content: "";
  position: absolute;
  background: var(--c-cyan);
  transition: transform 0.2s ease-out;
}
.accordion__mark::before { left: 0; right: 0; top: 6px; height: 1.5px; }
.accordion__mark::after { top: 0; bottom: 0; left: 6px; width: 1.5px; }
.accordion__item[data-open] .accordion__mark::after { transform: scaleY(0); }

.accordion__panel {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transition: max-height 0.22s ease-out, opacity 0.22s ease-out, visibility 0s linear 0.22s;
}
.accordion__item[data-open] .accordion__panel {
  opacity: 1;
  visibility: visible;
  transition: max-height 0.22s ease-out, opacity 0.22s ease-out, visibility 0s linear 0s;
}
.accordion__body {
  padding: 0 0 24px 42px;
  font-size: 16px;
  color: var(--c-body);
}

/* 筛选胶囊 */
.pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  padding: 7px 14px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  color: var(--c-observ);
  font-size: 13px;
  letter-spacing: 0.04em;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}
.pill:hover { color: var(--c-stardust); border-color: var(--c-observ); }
.pill[aria-pressed="true"],
.pill.is-active {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
  background: rgba(53, 224, 208, 0.1);
}

/* 锚点索引 */
.anchor-index {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-inline-start: 16px;
  border-inline-start: 1px solid var(--c-line);
}
.anchor-index__link {
  position: relative;
  padding: 6px 0;
  font-size: 14px;
  color: var(--c-observ);
  transition: color 0.2s ease, padding 0.2s ease;
}
.anchor-index__link:hover { color: var(--c-stardust); }
.anchor-index__link.is-active { color: var(--c-cyan); padding-inline-start: 8px; }
.anchor-index__link.is-active::before {
  content: "";
  position: absolute;
  left: -17px;
  top: 50%;
  width: 12px;
  height: 1px;
  background: var(--c-cyan);
}

/* ---------- 13. 进入视口显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
[data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- 14. 响应式页脚 ---------- */
@media (max-width: 900px) {
  .site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .site-footer__grid { grid-template-columns: minmax(0, 1fr); }
  .site-footer__legal { flex-direction: column; align-items: flex-start; }
}

/* ---------- 15. 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;
  }
  body::after { display: none; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .status-dot__pulse { box-shadow: none !important; }
}