/* ==========================================================================
   乐宝体育 · 共享站点样式 /assets/site.css
   夜间球场控制室：墨绿底 / 靛紫分区 / 荧光青交互 / 琥珀橙比分
   ========================================================================== */

/* ---------- 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, figure, blockquote, dl, dd, ul, ol {
  margin: 0;
}

ul, ol { padding: 0; list-style: none; }

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

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

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

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

/* ---------- 2. 变量 ---------- */
:root {
  --ink-900: #061A14;
  --ink-800: #0C2B21;
  --ink-700: #123528;

  --cyan: #5CF2D0;
  --cyan-soft: rgba(92, 242, 208, 0.14);
  --amber: #FFB454;
  --amber-soft: rgba(255, 180, 84, 0.16);

  --indigo: #241C45;
  --wine: #5A1F2E;
  --sand: #F2EBDD;
  --mist: #9BB8AD;
  --line: #2C4A40;
  --white: #FFFFFF;

  --rail-w: 96px;
  --topbar-h: 62px;
  --pad-x: clamp(18px, 4vw, 56px);
  --max-w: 1180px;
  --gap: clamp(16px, 2.4vw, 30px);
  --radius: 2px;
  --dur: 180ms;
  --ease: cubic-bezier(0.22, 0.68, 0.24, 1);

  --font-display: "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "Roboto Mono", ui-monospace, SFMono-Regular,
    Menlo, Consolas, monospace;
}

/* ---------- 3. 基础排版 ---------- */
body {
  margin: 0;
  padding-left: var(--rail-w);
  min-height: 100vh;
  background-color: var(--ink-900);
  background-image: repeating-linear-gradient(
    90deg,
    rgba(44, 74, 64, 0.3) 0 1px,
    transparent 1px 96px
  );
  background-attachment: fixed;
  color: var(--sand);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0.012em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.01em;
  overflow-wrap: break-word;
}

h1 {
  font-size: clamp(2.4rem, 6.2vw, 4.6rem);
  line-height: 0.98;
}

h2 { font-size: clamp(1.5rem, 3.2vw, 2.5rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }

p { overflow-wrap: break-word; }

.prose p { max-width: 68ch; }

strong { font-weight: 700; color: var(--white); }

::selection {
  background: var(--cyan);
  color: #04211A;
}

/* ---------- 4. 焦点与可访问性 ---------- */
:where(a, button, [tabindex], summary):focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 2px;
}

.section--sand :where(a, button, [tabindex]):focus-visible {
  outline-color: var(--ink-900);
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 300;
  padding: 10px 16px;
  background: var(--cyan);
  color: #04211A;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: var(--radius);
  transform: translateY(-180%);
  transition: transform var(--dur) var(--ease);
}

.skip-link:focus-visible {
  transform: translateY(0);
  outline-offset: 2px;
}

/* ---------- 5. 头部：侧边品牌轨道 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--rail-w);
  z-index: 100;
  display: flex;
  flex-direction: column;
  padding: 16px 0 12px;
  background: linear-gradient(180deg, #08241B 0%, var(--ink-900) 45%, #04140F 100%);
  border-right: 1px solid var(--line);
}

.site-header__bar {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 0 10px 16px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
  min-width: 0;
}

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

.brand__dot {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(92, 242, 208, 0.16);
}

.brand__text {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.03em;
  line-height: 1.2;
  color: var(--sand);
}

.brand__meta {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  line-height: 1.3;
  color: var(--mist);
}

.nav-toggle { display: none; }
.nav-toggle__text { display: inline-block; }

/* 导航 */
.site-nav {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: 14px 10px 0;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.site-nav__title {
  padding: 0 4px 10px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.site-nav__list {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.site-nav__item { display: block; }

.site-nav__link {
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding: 9px 8px;
  border-left: 1px solid transparent;
  border-radius: 0 2px 2px 0;
  transition: background var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    color var(--dur) var(--ease);
}

.site-nav__idx {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--mist);
  transition: color var(--dur) var(--ease);
}

.site-nav__label {
  font-size: 12.5px;
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--sand);
  transition: color var(--dur) var(--ease);
}

.site-nav__link:hover {
  background: rgba(92, 242, 208, 0.07);
  border-left-color: rgba(92, 242, 208, 0.55);
}

.site-nav__link:hover .site-nav__label,
.site-nav__link:hover .site-nav__idx { color: var(--cyan); }

.site-nav__link[aria-current="page"] {
  background: var(--cyan-soft);
  border-left-color: var(--cyan);
}

.site-nav__link[aria-current="page"] .site-nav__label {
  color: var(--cyan);
  font-weight: 700;
}

.site-nav__link[aria-current="page"] .site-nav__idx { color: var(--cyan); }

.site-nav__foot {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px 0 4px;
  border-top: 1px solid var(--line);
}

.site-cta {
  display: block;
  padding: 10px 6px;
  text-align: center;
  white-space: nowrap;
  background: var(--cyan);
  color: #04211A;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.3;
  transition: background var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.site-cta:hover {
  background: var(--amber);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px -10px rgba(255, 180, 84, 0.9);
}

.site-nav__hint {
  display: none;
  font-size: 12px;
  line-height: 1.65;
  color: var(--mist);
}

/* 滚动进度 */
.scroll-progress {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 2px;
  background: rgba(92, 242, 208, 0.1);
  pointer-events: none;
}

.scroll-progress__bar {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--cyan), var(--amber));
  transform: scaleY(var(--scroll, 0));
  transform-origin: top center;
  will-change: transform;
}

/* ---------- 6. 头部：移动端 ---------- */
@media (max-width: 1023px) {
  body {
    padding-left: 0;
    padding-top: var(--topbar-h);
    background-image: none;
  }

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

  .site-header {
    top: 0;
    left: 0;
    right: 0;
    bottom: auto;
    width: auto;
    height: var(--topbar-h);
    flex-direction: row;
    align-items: center;
    padding: 0 var(--pad-x);
    border-right: 0;
    border-bottom: 1px solid var(--line);
    background: rgba(6, 26, 20, 0.96);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
  }

  .site-header__bar {
    flex: 1 1 auto;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    width: 100%;
    padding: 0;
    border-bottom: 0;
  }

  .brand {
    flex-direction: row;
    align-items: center;
    gap: 10px;
    width: auto;
  }

  .brand__row { gap: 8px; }
  .brand__text { font-size: 15px; }

  .brand__meta {
    padding-left: 10px;
    border-left: 1px solid var(--line);
    font-size: 10px;
    letter-spacing: 0.06em;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    color: var(--sand);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.14em;
    transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
  }

  .nav-toggle:hover {
    color: var(--cyan);
    border-color: var(--cyan);
  }

  .nav-toggle__bars {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 16px;
    height: 12px;
  }

  .nav-toggle__bar {
    display: block;
    width: 100%;
    height: 1px;
    background: currentColor;
    transition: transform var(--dur) var(--ease);
  }

  .site-header[data-open] .nav-toggle {
    color: var(--cyan);
    border-color: var(--cyan);
  }

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

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

  .site-nav {
    position: fixed;
    top: var(--topbar-h);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 90;
    flex: 0 0 auto;
    padding: 22px var(--pad-x) 32px;
    background: linear-gradient(180deg, #071E17 0%, var(--ink-900) 72%);
    border-top: 1px solid var(--line);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity var(--dur) var(--ease),
      transform var(--dur) var(--ease),
      visibility 0s linear var(--dur);
  }

  .site-header[data-open] .site-nav {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: opacity var(--dur) var(--ease),
      transform var(--dur) var(--ease),
      visibility 0s;
  }

  .site-nav__title {
    padding: 0 0 12px;
    font-size: 10px;
  }

  .site-nav__list {
    gap: 0;
    border-top: 1px solid var(--line);
  }

  .site-nav__link {
    flex-direction: row;
    align-items: baseline;
    gap: 16px;
    padding: 15px 4px 15px 12px;
    border-left: 2px solid transparent;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
  }

  .site-nav__label { font-size: 19px; font-weight: 700; }
  .site-nav__idx { font-size: 11px; }

  .site-nav__link[aria-current="page"] {
    background: rgba(92, 242, 208, 0.08);
    border-left: 2px solid var(--cyan);
  }

  .site-nav__foot {
    margin-top: 26px;
    gap: 14px;
    padding-top: 20px;
  }

  .site-cta {
    padding: 14px 10px;
    font-size: 14px;
  }

  .site-nav__hint { display: block; }

  .scroll-progress {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: auto;
    height: 2px;
  }

  .scroll-progress__bar {
    transform: scaleX(var(--scroll, 0));
    transform-origin: left center;
  }
}

@media (max-width: 520px) {
  .brand__meta { display: none; }
}

/* ---------- 7. 页脚 ---------- */
.site-footer {
  position: relative;
  padding: clamp(40px, 6vw, 76px) var(--pad-x) 24px;
  background: var(--indigo);
  color: var(--sand);
  border-top: 1px solid rgba(92, 242, 208, 0.18);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    var(--cyan) 0%,
    rgba(92, 242, 208, 0) 55%,
    var(--amber) 100%
  );
}

.footer__inner {
  max-width: var(--max-w);
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: clamp(30px, 4.5vw, 54px);
}

.footer__lead {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 32px;
}

.footer__wordmark {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.01em;
}

.footer__wordmark-accent {
  color: var(--cyan);
  margin-left: 0.16em;
}

.footer__tagline {
  max-width: 46ch;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.footer__cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(24px, 3.5vw, 44px);
  padding-top: clamp(24px, 3.5vw, 36px);
  border-top: 1px solid rgba(242, 235, 221, 0.14);
}

.footer__col { min-width: 0; }

.footer__col--contact { grid-column: 1 / -1; }

.footer__col-title {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--amber);
}

.footer__links {
  display: grid;
  gap: 9px;
}

.footer__link {
  display: inline-block;
  padding-bottom: 1px;
  font-size: 14px;
  color: var(--sand);
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.footer__link:hover {
  color: var(--cyan);
  border-bottom-color: rgba(92, 242, 208, 0.55);
}

.footer__facts {
  display: grid;
  gap: 12px;
}

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

.footer__fact-key {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.footer__fact-value {
  font-size: 14px;
  line-height: 1.55;
  color: var(--sand);
  overflow-wrap: anywhere;
}

.footer__meta {
  margin-top: 6px;
  padding-top: 20px;
  border-top: 1px solid rgba(242, 235, 221, 0.14);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 26px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.footer__copyright,
.footer__icp { margin: 0; }

.footer__note {
  flex: 1 1 260px;
  min-width: 200px;
  color: rgba(155, 184, 173, 0.88);
}

@media (min-width: 860px) {
  .footer__cols { grid-template-columns: 1fr 1fr 1.5fr; }
  .footer__col--contact { grid-column: auto; }
}

/* ---------- 8. 布局容器 ---------- */
.shell {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.section {
  position: relative;
  padding-block: clamp(44px, 7vw, 96px);
}

.section--panel { background: var(--ink-800); }
.section--indigo { background: var(--indigo); }

.section--sand {
  background: var(--sand);
  color: var(--ink-900);
}

.section--sand h1,
.section--sand h2,
.section--sand h3,
.section--sand h4 { color: var(--ink-900); }

.section--sand strong { color: var(--ink-900); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px 32px;
  margin-bottom: clamp(24px, 3.4vw, 42px);
}

.chapter-index {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.chapter-index::before {
  content: "";
  flex: none;
  width: 24px;
  height: 1px;
  background: var(--cyan);
}

.section--sand .chapter-index { color: #4A6A5E; }
.section--sand .chapter-index::before { background: #1E7A63; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--amber);
}

.display-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5.6vw, 4.4rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.015em;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.2vw, 2.5rem);
  font-weight: 800;
  line-height: 1.1;
}

.lede {
  max-width: 62ch;
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.75;
  color: var(--mist);
}

.section--sand .lede { color: #3E5A50; }

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

.grid--split { grid-template-columns: minmax(0, 1fr); }
.grid--halves { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--thirds { grid-template-columns: repeat(3, minmax(0, 1fr)); }

@media (min-width: 1024px) {
  .grid--split { grid-template-columns: minmax(0, 3fr) minmax(0, 9fr); }
}

@media (max-width: 900px) {
  .grid--thirds { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .grid--halves,
  .grid--thirds { grid-template-columns: minmax(0, 1fr); }
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

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

.rail-index {
  position: sticky;
  top: 28px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  align-self: start;
}

.rail-index__link {
  padding: 8px 0;
  font-size: 13px;
  color: var(--mist);
  border-bottom: 1px solid rgba(44, 74, 64, 0.6);
  transition: color var(--dur) var(--ease);
}

.rail-index__link:hover { color: var(--cyan); }

/* ---------- 9. 面板与标签 ---------- */
.panel {
  padding: clamp(16px, 2.2vw, 26px);
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.35);
}

.panel--flat {
  padding: 0;
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}

.panel--indigo {
  background: var(--indigo);
  border-color: rgba(92, 242, 208, 0.16);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.6;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.tag--cyan {
  color: var(--cyan);
  border-color: rgba(92, 242, 208, 0.45);
  background: var(--cyan-soft);
}

.tag--amber {
  color: var(--amber);
  border-color: rgba(255, 180, 84, 0.45);
  background: var(--amber-soft);
}

.tag--wine {
  color: var(--sand);
  background: var(--wine);
  border-color: transparent;
}

/* ---------- 10. 数据 ---------- */
.data {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  letter-spacing: -0.01em;
}

.data-figure {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 4.4vw, 3.2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
}

.data-label {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.section--sand .data-label { color: #4A6A5E; }
.section--sand .data-figure { color: #8A4A08; }

/* ---------- 11. 按钮与链接 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--sand);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: background var(--dur) var(--ease),
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

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

.btn--primary {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #04211A;
}

.btn--primary:hover {
  background: var(--amber);
  border-color: var(--amber);
  color: #1B1206;
}

.btn--ghost { border-color: var(--line); color: var(--sand); }

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

.btn--quiet {
  padding-inline: 0;
  border-color: transparent;
  color: var(--cyan);
}

.btn--quiet:hover {
  color: var(--amber);
  gap: 12px;
}

.btn--sm {
  padding: 8px 14px;
  font-size: 12px;
}

.btn--block { width: 100%; }

.section--sand .btn--ghost {
  border-color: rgba(6, 26, 20, 0.28);
  color: var(--ink-900);
}

.section--sand .btn--ghost:hover {
  border-color: var(--ink-900);
  color: var(--ink-900);
}

.text-link {
  color: var(--cyan);
  padding-bottom: 1px;
  border-bottom: 1px solid rgba(92, 242, 208, 0.45);
  transition: color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.text-link:hover {
  color: var(--amber);
  border-bottom-color: rgba(255, 180, 84, 0.6);
}

.section--sand .text-link {
  color: #1E6E5B;
  border-bottom-color: rgba(30, 110, 91, 0.4);
}

/* ---------- 12. 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.breadcrumb__link {
  color: var(--mist);
  padding-bottom: 1px;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.breadcrumb__link:hover {
  color: var(--cyan);
  border-bottom-color: rgba(92, 242, 208, 0.5);
}

.breadcrumb__sep { color: var(--line); }
.breadcrumb__current { color: var(--sand); }

/* ---------- 13. 图片容器 ---------- */
.media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(
    145deg,
    #0C2B21 0%,
    #061A14 55%,
    #241C45 100%
  );
}

.media::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(44, 74, 64, 0.55) 1px, transparent 1px),
    linear-gradient(rgba(44, 74, 64, 0.55) 1px, transparent 1px);
  background-size: 33.333% 33.333%;
  opacity: 0.55;
  pointer-events: none;
}

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    120% 80% at 20% 110%,
    rgba(92, 242, 208, 0.18),
    transparent 62%
  );
  pointer-events: none;
}

.media__img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media__ph {
  position: absolute;
  z-index: 1;
  left: 14px;
  bottom: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: rgba(242, 235, 221, 0.55);
}

.media__caption {
  position: relative;
  z-index: 1;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.media--wide { aspect-ratio: 16 / 9; }
.media--square { aspect-ratio: 1 / 1; }
.media--tall { aspect-ratio: 4 / 5; }
.media--banner { aspect-ratio: 21 / 9; }

/* ---------- 14. 标签页 ---------- */
.tabs { display: block; }

.tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: clamp(18px, 2.4vw, 28px);
  border-bottom: 1px solid var(--line);
}

.tabs__tab {
  position: relative;
  padding: 10px 16px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--mist);
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.tabs__tab:hover { color: var(--sand); }

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

.tabs__panel {
  padding-top: 2px;
  animation: tabIn 200ms var(--ease) both;
}

.tabs__panel[hidden] { display: none; }

@keyframes tabIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 15. 表格 ---------- */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.table th,
.table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.table th {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.table td:first-child {
  font-family: var(--font-mono);
  color: var(--mist);
}

/* ---------- 16. 动效偏好 ---------- */
@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;
    scroll-behavior: auto !important;
  }

  .tabs__panel { animation: none; }

  .site-cta:hover,
  .btn:hover { transform: none; }
}