/* =========================================================
   博万体育主站 · 共享样式 /assets/site.css
   高原赛场夜读感 · 展览画册式布局 · 经幡五色
   ========================================================= */

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

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

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

ul, ol { list-style: none; }

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

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

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

/* ---------- 2. 设计令牌 ---------- */
:root {
  /* 色彩 */
  --night: #0B1B3A;
  --night-deep: #061127;
  --yak-white: #F4F1EA;
  --flag-blue: #2E6BFF;
  --flag-green: #2A9D8F;
  --flag-red: #E63946;
  --amber: #F2B705;
  --flag-yellow: #F4C430;
  --flag-white: #FDFDFD;
  --gray-rock: #8A93A6;
  --grid-line: #1E3A5F;
  --pure-white: #FFFFFF;

  /* 骨架尺寸 */
  --rail-w: 0px;
  --bar-h: 64px;
  --shell-max: 1180px;
  --pad-x: 20px;
  --radius: 2px;

  /* 字体 */
  --font-display: "Noto Sans SC", "HarmonyOS Sans SC", "Source Han Sans SC",
                  "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "HarmonyOS Sans SC", "Source Han Sans SC",
               "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", "SFMono-Regular",
               Menlo, Consolas, "Courier New", monospace;

  --ease: cubic-bezier(.22, .61, .36, 1);
}

@media (min-width: 768px) {
  :root {
    --bar-h: 70px;
    --pad-x: 32px;
  }
}

@media (min-width: 1024px) {
  :root {
    --rail-w: 144px;
    --pad-x: 40px;
  }
}

@media (min-width: 1440px) {
  :root {
    --rail-w: 156px;
    --shell-max: 1240px;
  }
}

/* ---------- 3. 基底 ---------- */
body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  font-weight: 400;
  color: var(--yak-white);
  background-color: var(--night);
  background-image:
    linear-gradient(rgba(30, 58, 95, .30) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 58, 95, .30) 1px, transparent 1px);
  background-size: 88px 88px;
  background-position: -1px -1px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

@media (min-width: 768px) { body { font-size: 17px; } }
@media (min-width: 1280px) { body { font-size: 18px; } }

@media (min-width: 1024px) {
  body { padding-left: var(--rail-w); }
}

main {
  display: block;
  padding-top: calc(var(--bar-h) + 26px);
  min-height: 62vh;
}

::selection {
  background: var(--flag-blue);
  color: var(--pure-white);
}

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

/* ---------- 4. 排版工具 ---------- */
.display-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(3rem, 8vw, 7rem);
  line-height: .95;
  letter-spacing: -.035em;
  color: var(--pure-white);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 2.4vw, 2.4rem);
  line-height: 1.15;
  letter-spacing: -.012em;
  color: var(--pure-white);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: .6875rem;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gray-rock);
}

.data-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
  color: var(--pure-white);
}

.lede {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: rgba(244, 241, 234, .78);
  max-width: 62ch;
}

.chapter-head { display: grid; gap: 12px; }

.chapter-head__index {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2.25rem, 5vw, 4rem);
  line-height: 1;
  letter-spacing: -.05em;
  color: var(--grid-line);
}

/* ---------- 5. 布局工具 ---------- */
.container {
  width: 100%;
  max-width: calc(var(--shell-max) + var(--pad-x) * 2);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.section { padding-block: clamp(44px, 6.5vw, 92px); }
.section--tight { padding-block: clamp(28px, 4vw, 56px); }

.divider {
  height: 1px;
  border: 0;
  background: var(--grid-line);
  margin: 0;
}

.grid { display: grid; gap: var(--pad-x); }

/* ---------- 6. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 24px;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--pure-white);
  background: var(--flag-blue);
  border: 1px solid var(--flag-blue);
  border-radius: var(--radius);
  transition: transform .2s var(--ease), background .2s, border-color .2s, color .2s;
}

.btn:hover { transform: translateY(-1px); background: #2358db; border-color: #2358db; }

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

.btn--ghost:hover {
  background: rgba(46, 107, 255, .1);
  border-color: var(--flag-blue);
  color: var(--pure-white);
}

.btn--flag {
  background: var(--flag-red);
  border-color: var(--flag-red);
}

.btn--flag:hover { background: #cf2f3c; border-color: #cf2f3c; }

/* ---------- 7. 跳转链接 ---------- */
.skip-link {
  position: fixed;
  left: 12px;
  top: 12px;
  z-index: 300;
  padding: 11px 20px;
  background: var(--amber);
  color: #17110a;
  font-weight: 700;
  font-size: .875rem;
  border-radius: var(--radius);
  transform: translateY(-180%);
  transition: transform .22s var(--ease);
}

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

/* ---------- 8. 顶部栏 ---------- */
.site-header { position: relative; z-index: 60; }

.header-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--bar-h);
  display: flex;
  align-items: center;
  gap: 14px;
  padding-inline: var(--pad-x);
  background: rgba(6, 17, 39, .95);
  border-bottom: 1px solid var(--grid-line);
  z-index: 60;
}

@supports (backdrop-filter: blur(10px)) {
  .header-bar { backdrop-filter: blur(10px); }
}

@media (min-width: 1024px) {
  .header-bar {
    left: var(--rail-w);
    padding-inline: 28px 34px;
  }
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  min-width: 0;
}

.brand__mark {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 0 0 auto;
}

.brand__mark i {
  display: block;
  width: 4px;
  border-radius: 1px;
  background: var(--gray-rock);
}

.brand__mark i:nth-child(1) { height: 24px; background: var(--flag-blue); }
.brand__mark i:nth-child(2) { height: 16px; background: var(--flag-white); }
.brand__mark i:nth-child(3) { height: 28px; background: var(--flag-red); }
.brand__mark i:nth-child(4) { height: 16px; background: var(--flag-green); }
.brand__mark i:nth-child(5) { height: 24px; background: var(--amber); }

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
  min-width: 0;
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.0625rem;
  letter-spacing: -.01em;
  color: var(--pure-white);
  white-space: nowrap;
}

.brand__sig {
  font-size: .625rem;
  letter-spacing: .13em;
  color: var(--gray-rock);
  white-space: nowrap;
}

@media (max-width: 479px) {
  .brand__sig { display: none; }
}

/* 比分滚动条 */
.ticker {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  height: 38px;
  padding-inline: 12px;
  border: 1px solid var(--grid-line);
  background: rgba(11, 27, 58, .72);
  border-radius: var(--radius);
  overflow: hidden;
}

@media (max-width: 767px) {
  .ticker { display: none; }
}

.ticker__live {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-right: 12px;
  border-right: 1px solid var(--grid-line);
  font-family: var(--font-mono);
  font-size: .5625rem;
  letter-spacing: .2em;
  color: var(--flag-red);
}

.ticker__live::before {
  content: "";
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--flag-red);
  animation: ticker-pulse 1.8s ease-in-out infinite;
}

@keyframes ticker-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .2; }
}

.ticker__viewport {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
}

.ticker__track {
  display: flex;
  align-items: center;
  width: max-content;
  animation: ticker-run 52s linear infinite;
}

.ticker:hover .ticker__track { animation-play-state: paused; }

@keyframes ticker-run {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.ticker__item {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-right: 34px;
  white-space: nowrap;
  font-size: .8125rem;
  color: rgba(244, 241, 234, .82);
}

.ticker__league {
  font-family: var(--font-mono);
  font-size: .5625rem;
  letter-spacing: .14em;
  color: var(--gray-rock);
  border-left: 2px solid var(--flag-blue);
  padding-left: 6px;
}

.ticker__team {
  font-weight: 600;
  color: var(--yak-white);
}

.ticker__score {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: .9375rem;
  letter-spacing: -.02em;
  color: var(--pure-white);
}

.ticker__card {
  font-family: var(--font-mono);
  font-size: .5625rem;
  letter-spacing: .06em;
  padding: 2px 6px;
  border-radius: 1px;
  line-height: 1.5;
}

.ticker__card--yellow {
  background: var(--amber);
  color: #1a1400;
}

.ticker__card--red {
  background: var(--flag-red);
  color: var(--pure-white);
}

/* 顶部工具链接 */
.header-utility {
  display: none;
  align-items: center;
  gap: 18px;
  flex: 0 0 auto;
  margin-left: auto;
}

@media (min-width: 1200px) {
  .header-utility { display: flex; }
}

.header-utility__link {
  position: relative;
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--gray-rock);
  transition: color .2s;
}

.header-utility__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 1px;
  background: var(--flag-blue);
  transition: width .25s var(--ease);
}

.header-utility__link:hover { color: var(--yak-white); }
.header-utility__link:hover::after { width: 100%; }

/* 移动端菜单按钮 */
.nav-toggle {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  margin-left: auto;
  border: 1px solid var(--grid-line);
  border-radius: var(--radius);
  color: var(--yak-white);
  font-family: var(--font-mono);
  font-size: .625rem;
  letter-spacing: .12em;
  transition: border-color .2s, background .2s;
}

.nav-toggle:hover { border-color: var(--flag-blue); background: rgba(46, 107, 255, .1); }

@media (min-width: 1024px) {
  .nav-toggle { display: none; }
}

.nav-toggle__bars {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 16px;
  height: 14px;
}

.nav-toggle__bars i {
  display: block;
  height: 1.5px;
  width: 100%;
  background: currentColor;
  transition: transform .25s var(--ease), opacity .2s;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1) {
  transform: translateY(5.5px) 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(-5.5px) rotate(-45deg);
}

@media (max-width: 479px) {
  .nav-toggle__label { display: none; }
}

/* ---------- 9. 轨道导航 ---------- */
.rail-nav {
  position: fixed;
  top: var(--bar-h);
  left: 0;
  bottom: 0;
  z-index: 80;
  width: min(302px, 86vw);
  display: flex;
  flex-direction: column;
  background: var(--night-deep);
  overflow-y: auto;
  transform: translateX(-104%);
  visibility: hidden;
  transition: transform .3s var(--ease), visibility .3s var(--ease);
  box-shadow: 26px 0 48px rgba(0, 0, 0, .5);
}

.rail-nav[data-open] {
  transform: translateX(0);
  visibility: visible;
}

.rail-nav__eyebrow {
  padding: 20px 22px 12px;
  font-family: var(--font-mono);
  font-size: .5625rem;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--gray-rock);
}

.rail-nav__list { display: flex; flex-direction: column; }

.rail-nav__item { border-top: 1px solid rgba(30, 58, 95, .75); }
.rail-nav__item:last-child { border-bottom: 1px solid rgba(30, 58, 95, .75); }

.rail-nav__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 22px;
  color: rgba(244, 241, 234, .74);
  transition: color .2s, background .2s, padding-left .22s var(--ease);
}

.rail-nav__num {
  font-family: var(--font-mono);
  font-size: .625rem;
  letter-spacing: .06em;
  color: var(--gray-rock);
  flex: 0 0 auto;
}

.rail-nav__label {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: .02em;
}

.rail-nav__link:hover {
  color: var(--pure-white);
  background: rgba(46, 107, 255, .1);
  padding-left: 26px;
}

.rail-nav__link[aria-current="page"] {
  color: var(--pure-white);
  background: rgba(46, 107, 255, .16);
  box-shadow: inset 3px 0 0 var(--amber);
}

.rail-nav__link[aria-current="page"] .rail-nav__num { color: var(--amber); }

.rail-nav__node {
  margin-top: auto;
  padding: 20px 22px 24px;
  font-family: var(--font-mono);
  font-size: .5625rem;
  line-height: 1.7;
  letter-spacing: .14em;
  color: var(--gray-rock);
}

/* 桌面端：经幡垂线轨道 */
@media (min-width: 1024px) {
  .rail-nav {
    top: 0;
    bottom: 0;
    right: auto;
    width: var(--rail-w);
    padding-top: var(--bar-h);
    transform: none;
    visibility: visible;
    overflow: visible;
    box-shadow: none;
    z-index: 70;
  }

  .rail-nav::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    right: -1px;
    width: 3px;
    background: linear-gradient(180deg,
      var(--flag-blue) 0 20%,
      var(--flag-yellow) 20% 40%,
      var(--flag-red) 40% 60%,
      var(--flag-green) 60% 80%,
      var(--yak-white) 80% 100%);
    opacity: .6;
  }

  .rail-nav__eyebrow {
    padding: 22px 18px 12px;
    font-size: .5625rem;
    letter-spacing: .2em;
  }

  .rail-nav__link {
    flex-direction: column;
    align-items: flex-start;
    gap: 3px;
    padding: 13px 18px;
  }

  .rail-nav__link:hover { padding-left: 22px; }

  .rail-nav__label {
    font-size: .8125rem;
    letter-spacing: .04em;
  }

  .rail-nav__node { padding: 20px 18px 26px; }
}

/* 抽屉遮罩 */
@media (max-width: 1023px) {
  body.nav-open { overflow: hidden; }

  body.nav-open::before {
    content: "";
    position: fixed;
    inset: var(--bar-h) 0 0 0;
    background: rgba(6, 17, 39, .74);
    z-index: 75;
  }
}

/* ---------- 10. 阅读进度 ---------- */
.scroll-meter {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: rgba(30, 58, 95, .55);
  z-index: 90;
  pointer-events: none;
}

@media (min-width: 1024px) {
  .scroll-meter { left: var(--rail-w); }
}

.scroll-meter__fill {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg,
    var(--flag-blue),
    var(--flag-green) 42%,
    var(--amber) 74%,
    var(--flag-red));
  transition: width .1s linear;
}

/* ---------- 11. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 120px);
  background: var(--night-deep);
  border-top: 1px solid var(--grid-line);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg,
    var(--flag-blue) 0 20%,
    var(--flag-white) 20% 40%,
    var(--flag-red) 40% 60%,
    var(--flag-green) 60% 80%,
    var(--amber) 80% 100%);
  opacity: .72;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4vw, 56px);
  padding-block: clamp(42px, 6vw, 76px);
}

@media (min-width: 640px) {
  .footer-inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .footer-inner { grid-template-columns: 1.35fr 1.6fr 1.15fr; }
}

.footer-brand__name {
  margin-top: 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.25rem;
  line-height: 1.2;
  color: var(--pure-white);
}

.footer-brand__sig {
  margin-top: 4px;
  font-size: .8125rem;
  letter-spacing: .04em;
  color: rgba(244, 241, 234, .86);
}

.footer-brand__note {
  margin-top: 14px;
  max-width: 34ch;
  font-size: .8125rem;
  line-height: 1.85;
  color: var(--gray-rock);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.footer-nav__group { min-width: 0; }

.footer-nav__title {
  margin-bottom: 14px;
  padding-bottom: 11px;
  border-bottom: 1px solid var(--grid-line);
  font-family: var(--font-mono);
  font-size: .5625rem;
  font-weight: 500;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--gray-rock);
}

.footer-nav__list { display: grid; gap: 10px; }

.footer-nav__list a {
  position: relative;
  display: inline-block;
  font-size: .875rem;
  color: rgba(244, 241, 234, .8);
  transition: color .2s, transform .2s var(--ease);
}

.footer-nav__list a::before {
  content: "";
  position: absolute;
  left: -14px;
  top: .78em;
  width: 6px;
  height: 1px;
  background: var(--flag-blue);
  opacity: 0;
  transition: opacity .2s, width .2s;
}

.footer-nav__list a:hover {
  color: var(--pure-white);
  transform: translateX(6px);
}

.footer-nav__list a:hover::before { opacity: 1; width: 8px; }

.footer-contact__list { display: grid; gap: 16px; }

.footer-contact__list li {
  display: grid;
  gap: 3px;
  justify-items: start;
}

.footer-contact__label {
  font-family: var(--font-mono);
  font-size: .5625rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gray-rock);
}

.footer-contact__value {
  font-size: .875rem;
  line-height: 1.6;
  color: var(--yak-white);
  word-break: break-word;
}

.copy-btn {
  margin-top: 6px;
  padding: 4px 10px;
  border: 1px solid var(--grid-line);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: .5625rem;
  letter-spacing: .14em;
  color: var(--gray-rock);
  transition: color .2s, border-color .2s, background .2s;
}

.copy-btn:hover {
  color: var(--pure-white);
  border-color: var(--flag-blue);
}

.copy-btn[data-copied] {
  color: #05231f;
  background: var(--flag-green);
  border-color: var(--flag-green);
}

.footer-base {
  border-top: 1px solid var(--grid-line);
  background: rgba(11, 27, 58, .6);
}

.footer-base__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  padding-block: 18px;
  font-family: var(--font-mono);
  font-size: .625rem;
  letter-spacing: .06em;
  color: var(--gray-rock);
}

.footer-base__copy { color: rgba(244, 241, 234, .72); }
.footer-base__icp { color: rgba(244, 241, 234, .6); }

/* ---------- 12. 通用组件 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .08em;
  color: var(--gray-rock);
}

.breadcrumb a { color: var(--gray-rock); transition: color .2s; }
.breadcrumb a:hover { color: var(--flag-blue); }
.breadcrumb__sep { opacity: .5; }

.card {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px);
  background: linear-gradient(180deg, rgba(11, 27, 58, .92), rgba(6, 17, 39, .92));
  border: 1px solid var(--grid-line);
  border-radius: var(--radius);
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 34px;
  height: 2px;
  background: var(--flag-blue);
}

.card--red::before { background: var(--flag-red); }
.card--amber::before { background: var(--amber); }
.card--green::before { background: var(--flag-green); }

.card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  line-height: 1.28;
  color: var(--pure-white);
}

.card__meta {
  font-family: var(--font-mono);
  font-size: .625rem;
  letter-spacing: .12em;
  color: var(--gray-rock);
}

.card__text {
  margin-top: 10px;
  font-size: .9375rem;
  line-height: 1.8;
  color: rgba(244, 241, 234, .74);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--grid-line);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: .5625rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gray-rock);
  white-space: nowrap;
}

.tag--blue { color: var(--flag-blue); border-color: rgba(46, 107, 255, .48); }
.tag--red { color: var(--flag-red); border-color: rgba(230, 57, 70, .48); }
.tag--amber { color: var(--amber); border-color: rgba(242, 183, 5, .48); }
.tag--green { color: var(--flag-green); border-color: rgba(42, 157, 143, .48); }

.tag--solid {
  background: var(--flag-red);
  border-color: var(--flag-red);
  color: var(--pure-white);
}

.stat { display: grid; gap: 4px; }

.stat__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--pure-white);
}

.stat__label {
  font-family: var(--font-mono);
  font-size: .5625rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gray-rock);
}

/* 标签页 */
.tabs { display: grid; gap: 22px; }

.tabs__list {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--grid-line);
}

.tabs__tab {
  position: relative;
  margin-bottom: -1px;
  padding: 12px 18px;
  border-bottom: 2px solid transparent;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--gray-rock);
  transition: color .2s, border-color .2s, background .2s;
}

.tabs__tab:hover {
  color: var(--yak-white);
  background: rgba(46, 107, 255, .08);
}

.tabs__tab[aria-selected="true"] {
  color: var(--pure-white);
  border-bottom-color: var(--amber);
}

.tabs__panel { animation: tab-shift .28s var(--ease); }
.tabs__panel[hidden] { display: none; }

@keyframes tab-shift {
  from { opacity: 0; transform: translateX(10px); }
  to { opacity: 1; transform: none; }
}

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

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

.media-frame--slash {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 88%);
}

.media-frame > img,
.media-frame > picture > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(.82) contrast(1.06) saturate(.9);
  transition: transform .6s var(--ease), filter .4s var(--ease);
}

.media-frame:hover > img,
.media-frame:hover > picture > img {
  transform: scale(1.03);
  filter: brightness(.95) contrast(1.05) saturate(1);
}

.media-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 26px 14px 10px;
  font-family: var(--font-mono);
  font-size: .5625rem;
  letter-spacing: .12em;
  color: var(--yak-white);
  background: linear-gradient(180deg, rgba(6, 17, 39, 0), rgba(6, 17, 39, .92));
}

/* ---------- 14. 显现动画 ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .55s var(--ease), transform .55s var(--ease);
}

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

/* ---------- 15. 减少动态效果 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  .ticker__track { animation: none !important; }
  .ticker__live::before { animation: none !important; }

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

  .media-frame:hover > img { transform: none; }
}