/* ============ EMC体育中国官方 共享样式 /assets/site.css ============ */
/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background-color: var(--c-bg);
  background-image:
    var(--grid-h),
    var(--grid-v),
    radial-gradient(1100px 520px at 88% -8%, rgba(255, 107, 53, 0.09), transparent 60%);
  background-size: var(--grid-size), var(--grid-size), auto;
  color: var(--c-white);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
ul, ol { list-style: none; margin: 0; padding: 0; }
a { color: var(--c-accent); text-decoration: none; }
h1, h2, h3, h4, h5, h6 { margin: 0; font-family: var(--font-head); font-weight: 800; line-height: 1.12; letter-spacing: 0.01em; }
p { margin: 0; }
button { font: inherit; border: 0; background: none; color: inherit; cursor: pointer; }
address { font-style: normal; }
:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 3px; border-radius: 2px; }
main { display: block; min-height: 60vh; }
main:focus { outline: none; }
#main-content { scroll-margin-top: calc(var(--header-h) + 14px); }

/* ---------- CSS 变量 ---------- */
:root {
  --c-bg: #0B1B3D;
  --c-bg-deep: #071228;
  --c-panel: rgba(255, 255, 255, 0.08);
  --c-panel-strong: rgba(255, 255, 255, 0.14);
  --c-line: rgba(192, 192, 192, 0.18);
  --c-accent: #FF6B35;
  --c-accent-deep: #B4552D;
  --c-silver: #C0C0C0;
  --c-white: #F5F7FA;
  --c-muted: #6B7280;
  --c-positive: #4CAF50;
  --font-head: "Arial Narrow", "DIN Condensed", "Roboto Condensed", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-num: "Roboto Mono", "SFMono-Regular", Consolas, "PingFang SC", monospace;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --shell-w: 1360px;
  --shell-pad: clamp(1.25rem, 4vw, 3rem);
  --header-h: 86px;
  --r-sm: 3px;
  --r-md: 8px;
  --t-fast: 160ms;
  --t-med: 240ms;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --grid-h: linear-gradient(to right, rgba(192, 192, 192, 0.07) 1px, transparent 1px);
  --grid-v: linear-gradient(to bottom, rgba(192, 192, 192, 0.07) 1px, transparent 1px);
  --grid-size: 44px 44px;
}

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

/* ---------- 可访问性 ---------- */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 18px;
  background: var(--c-accent);
  color: var(--c-bg-deep);
  font-size: 0.88rem;
  font-weight: 700;
  border-radius: var(--r-sm);
  transform: translateY(calc(-100% - 20px));
  transition: transform var(--t-fast) var(--ease);
}
.skip-link:focus-visible { transform: translateY(0); }

/* ---------- 按钮 ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.74rem 1.35rem;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--c-accent);
  background: transparent;
  border: 1px solid var(--c-accent);
  border-radius: var(--r-sm);
  overflow: hidden;
  isolation: isolate;
  cursor: pointer;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--t-med) var(--ease);
}
.btn:hover, .btn:focus-visible { color: var(--c-bg-deep); border-color: var(--c-accent); }
.btn:hover::before, .btn:focus-visible::before { transform: scaleX(1); transform-origin: left; }
.btn--outline { background: transparent; }
.btn--compact { padding: 0.55rem 1rem; font-size: 0.8rem; letter-spacing: 0.04em; }
.btn--block { display: flex; width: 100%; }

/* ---------- 阅读进度 ---------- */
.reading-progress { position: fixed; top: 0; left: 0; z-index: 999; width: 100%; height: 3px; pointer-events: none; }
.reading-progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--c-accent), var(--c-accent-deep));
  box-shadow: 0 0 10px rgba(255, 107, 53, 0.65);
}

/* ---------- 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 27, 61, 0.88);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--c-line);
}
.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: min(340px, 44vw);
  height: 3px;
  background: var(--c-accent);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 100%, 0 100%);
}
.site-header__inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: var(--header-h);
}
.brand { display: inline-flex; align-items: center; gap: 0.9rem; flex-shrink: 0; color: var(--c-white); transition: opacity var(--t-fast) var(--ease); }
.brand:hover, .brand:focus-visible { opacity: 0.86; }
.brand__mark {
  display: grid;
  place-items: center;
  width: 54px;
  height: 38px;
  background: var(--c-accent);
  color: var(--c-bg-deep);
  font-family: var(--font-head);
  font-size: 0.98rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}
.brand__text { display: grid; gap: 0.1rem; }
.brand__name { font-family: var(--font-head); font-size: 1.25rem; font-weight: 800; letter-spacing: 0.02em; white-space: nowrap; }
.brand__tagline { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.64rem; letter-spacing: 0.26em; text-transform: uppercase; color: var(--c-silver); }
.brand__tagline::before { content: "//"; font-family: var(--font-num); font-size: 0.7rem; color: var(--c-accent); }
.site-nav { display: flex; align-items: center; gap: clamp(1.2rem, 2.4vw, 2.5rem); }
.site-nav__list { display: flex; align-items: center; gap: 0.1rem; }
.site-nav__item { position: relative; }
.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 0.38rem;
  padding: 0.65rem 0.55rem 0.58rem;
  color: var(--c-silver);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color var(--t-fast) var(--ease);
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0.55rem;
  right: 0.55rem;
  bottom: 0.2rem;
  height: 2px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-fast) var(--ease);
}
.site-nav__num { font-family: var(--font-num); font-size: 0.64rem; color: var(--c-accent); opacity: 0.7; transition: opacity var(--t-fast) var(--ease); }
.site-nav__label { white-space: nowrap; }
.site-nav__link:hover, .site-nav__link:focus-visible, .site-nav__link[aria-current="page"] { color: var(--c-white); }
.site-nav__link:hover .site-nav__num, .site-nav__link:focus-visible .site-nav__num, .site-nav__link[aria-current="page"] .site-nav__num { opacity: 1; }
.site-nav__link:hover::after, .site-nav__link:focus-visible::after { transform: scaleX(1); }
.site-nav__link[aria-current="page"]::after { transform: scaleX(1); background: var(--c-positive); }
.site-nav__cta { flex-shrink: 0; }
.site-nav__cta-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-positive);
  box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.22);
}
.nav-toggle { display: none; position: relative; z-index: 110; width: 44px; height: 44px; flex-shrink: 0; }
.nav-toggle__line {
  position: absolute;
  left: 10px;
  right: 10px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-white);
  transition: top var(--t-med) var(--ease), transform var(--t-med) var(--ease), opacity var(--t-fast) var(--ease);
}
.nav-toggle__line:nth-child(1) { top: 14px; }
.nav-toggle__line:nth-child(2) { top: 21px; }
.nav-toggle__line:nth-child(3) { top: 28px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) { top: 21px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(2) { top: 21px; opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) { top: 21px; transform: rotate(-45deg); }

@media (max-width: 980px) {
  :root { --header-h: 68px; }
  .nav-toggle { display: block; }
  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    z-index: 200;
    display: block;
    padding: 1.2rem var(--shell-pad) 1.6rem;
    background: var(--c-bg-deep);
    border-bottom: 1px solid var(--c-line);
    box-shadow: 0 22px 40px rgba(0, 0, 0, 0.35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease), visibility 0s linear var(--t-fast);
  }
  .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition: opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease), visibility 0s;
  }
  .site-nav__list { flex-direction: column; align-items: stretch; gap: 0; padding: 0.3rem 0 1rem; }
  .site-nav__item { border-bottom: 1px solid rgba(192, 192, 192, 0.1); }
  .site-nav__link { display: flex; align-items: center; gap: 1rem; padding: 0.95rem 0.6rem; font-size: 1.04rem; color: var(--c-white); }
  .site-nav__link::after { left: 0.6rem; right: auto; top: 50%; bottom: auto; width: 0; height: 2px; transform: translateY(-50%); transition: width var(--t-fast) var(--ease); }
  .site-nav__link:hover::after, .site-nav__link:focus-visible::after, .site-nav__link[aria-current="page"]::after { transform: translateY(-50%); width: 20px; }
  .site-nav__num { font-size: 0.78rem; }
  .site-nav__cta { justify-content: center; width: 100%; }
}

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  overflow: hidden;
  margin-top: 4rem;
  background: var(--c-bg-deep);
  border-top: 1px solid rgba(192, 192, 192, 0.12);
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: min(420px, 52vw);
  height: 4px;
  background: var(--c-accent);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 100%, 0 100%);
}
.site-footer::after {
  content: "EMC";
  position: absolute;
  right: -0.5rem;
  bottom: -2.5rem;
  z-index: 0;
  font-family: var(--font-head);
  font-size: clamp(8rem, 17vw, 15rem);
  font-weight: 800;
  line-height: 1;
  color: rgba(255, 255, 255, 0.035);
  letter-spacing: 0.04em;
  pointer-events: none;
}
.site-footer__main {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.7fr) minmax(0, 1fr);
  gap: 2.5rem;
  padding-block: 3.2rem 2.4rem;
  border-bottom: 1px solid rgba(192, 192, 192, 0.12);
}
.site-footer__brand { display: grid; gap: 0.8rem; align-content: start; }
.site-footer__logo { display: inline-flex; align-items: center; gap: 0.8rem; width: fit-content; }
.site-footer__logo-mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 34px;
  background: var(--c-accent);
  color: var(--c-bg-deep);
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}
.site-footer__logo-name { font-family: var(--font-head); font-size: 1.3rem; font-weight: 800; color: var(--c-white); letter-spacing: 0.02em; }
.site-footer__slogan { font-size: 0.66rem; letter-spacing: 0.28em; text-transform: uppercase; color: var(--c-accent); }
.site-footer__note { max-width: 42ch; font-size: 0.82rem; color: var(--c-muted); line-height: 1.7; }
.site-footer__nav { display: grid; gap: 0.6rem; align-content: start; }
.site-footer__head { font-family: var(--font-head); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--c-silver); margin-bottom: 0.6rem; }
.site-footer__link {
  position: relative;
  display: inline-block;
  width: fit-content;
  padding-left: 1rem;
  color: var(--c-silver);
  font-size: 0.9rem;
  transition: color var(--t-fast) var(--ease), padding-left var(--t-fast) var(--ease);
}
.site-footer__link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  background: var(--c-accent);
  transform: translateY(-50%) rotate(45deg);
  transition: background var(--t-fast) var(--ease);
}
.site-footer__link:hover, .site-footer__link:focus-visible { color: var(--c-white); padding-left: 1.25rem; }
.site-footer__link:hover::before { background: var(--c-white); }
.site-footer__contact { display: grid; gap: 0.35rem; align-content: start; font-size: 0.9rem; color: var(--c-silver); }
.site-footer__contact address { color: var(--c-silver); line-height: 1.6; }
.site-footer__stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
  padding-block: 2rem 1.8rem;
  border-bottom: 1px solid rgba(192, 192, 192, 0.12);
}
.stat { display: grid; gap: 0.15rem; padding: 0.4rem 0.25rem 0.4rem 1rem; border-left: 2px solid var(--c-line); position: relative; }
.stat::after { content: ""; position: absolute; left: -2px; top: 0; width: 2px; height: 0; background: var(--c-accent); transition: height var(--t-med) var(--ease); }
.stat:hover::after { height: 100%; }
.stat__figure { display: flex; align-items: baseline; gap: 0.3rem; }
.stat__num { font-family: var(--font-num); font-size: clamp(1.9rem, 3vw, 3rem); line-height: 1; color: var(--c-white); letter-spacing: 0.02em; }
.stat__unit { font-family: var(--font-num); font-size: 0.8rem; color: var(--c-accent); }
.stat__label { font-size: 0.74rem; color: var(--c-muted); letter-spacing: 0.04em; }
.site-footer__legal {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  padding-block: 1.3rem 1.7rem;
  font-size: 0.8rem;
  color: var(--c-muted);
}
@media (max-width: 1080px) {
  .site-footer__main { grid-template-columns: 1fr 1fr; }
  .site-footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 860px) {
  .site-footer__main { grid-template-columns: 1fr; gap: 1.8rem; padding-block: 2.4rem 1.6rem; }
  .site-footer__brand { grid-column: auto; }
  .site-footer__stats { grid-template-columns: repeat(2, 1fr); }
  body { background-size: 32px 32px, 32px 32px, auto; }
}

/* ---------- 分屏首屏 ---------- */
.page-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4.5rem);
  padding-block: clamp(3rem, 9vw, 6.5rem) clamp(2.2rem, 6vw, 4rem);
}
.page-hero__content { display: grid; gap: 1.4rem; justify-items: start; }
.page-hero__visual {
  position: relative;
  min-height: 300px;
  border: 1px solid var(--c-line);
  background-image:
    linear-gradient(135deg, rgba(255, 107, 53, 0.22), transparent 46%),
    var(--grid-h),
    var(--grid-v);
  background-size: auto, var(--grid-size), var(--grid-size);
  clip-path: polygon(3% 0, 100% 0, 97% 100%, 0 100%);
}
@media (max-width: 800px) {
  .page-hero { grid-template-columns: 1fr; gap: 2rem; }
  .page-hero__visual { min-height: 220px; }
}

/* ---------- 区块头 ---------- */
.section-head { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: end; gap: 0.1rem 1.1rem; margin-bottom: 2.2rem; }
.section-head__num { grid-row: 1 / 3; font-family: var(--font-num); font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 500; line-height: 0.9; color: var(--c-accent); opacity: 0.85; }
.kicker { font-family: var(--font-head); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.26em; text-transform: uppercase; color: var(--c-silver); }
.section-head__title { font-size: clamp(1.65rem, 3vw, 2.5rem); letter-spacing: 0.01em; }
.section-head__meta { grid-column: 2; font-size: 0.76rem; color: var(--c-muted); }

/* ---------- 目录内容地图 ---------- */
.index-map { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem; }
.index-map__item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.1rem 1rem;
  padding: 1.25rem 1.35rem;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-accent);
  color: var(--c-white);
  transition: border-color var(--t-fast), background var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
}
.index-map__item:hover, .index-map__item:focus-visible {
  background: var(--c-panel-strong);
  border-left-width: 5px;
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.18);
}
.index-map__num { font-family: var(--font-num); font-size: 1.5rem; color: var(--c-accent); grid-row: 1 / 3; }
.index-map__title { font-weight: 700; font-size: 1.02rem; }
.index-map__meta { grid-column: 2; font-size: 0.75rem; color: var(--c-muted); }
.index-map__arrow { grid-column: 3; grid-row: 1 / 3; font-family: var(--font-num); font-size: 1.1rem; color: var(--c-accent); transition: transform var(--t-fast) var(--ease); }
.index-map__item:hover .index-map__arrow { transform: translateX(5px); }

/* ---------- 玻璃面板 ---------- */
.glass-panel {
  padding: 1.6rem;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
  transition: border-color var(--t-fast), transform var(--t-fast), background var(--t-fast);
}
.glass-panel:hover { border-color: rgba(255, 107, 53, 0.5); transform: translateY(-2px); background: var(--c-panel-strong); }

/* ---------- 横向主题带 ---------- */
.theme-band { overflow-x: auto; scroll-snap-type: x proximity; padding-bottom: 0.6rem; scrollbar-width: thin; scrollbar-color: var(--c-accent) rgba(255, 255, 255, 0.1); }
.theme-band::-webkit-scrollbar { height: 6px; }
.theme-band::-webkit-scrollbar-thumb { background: var(--c-accent); border-radius: 6px; }
.theme-band::-webkit-scrollbar-track { background: rgba(255, 255, 255, 0.08); }
.theme-band__track { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(230px, 62vw); gap: 1rem; width: max-content; }
@media (min-width: 720px) {
  .theme-band__track { grid-auto-columns: minmax(260px, 360px); }
}
.theme-band__item { scroll-snap-align: start; min-width: 0; }

/* ---------- 比分行 ---------- */
.score-row { display: grid; gap: 0.4rem; padding: 1.1rem 1.25rem; }
.score-row__label { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: var(--c-silver); }
.score-row__teams { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.score-row__team { font-weight: 700; font-size: 0.98rem; color: var(--c-white); }
.score-row__value { font-family: var(--font-num); font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 500; color: var(--c-accent); letter-spacing: 0.03em; text-align: center; }

/* ---------- 数据表 ---------- */
.data-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.data-table th { padding: 0.65rem 0.9rem 0.65rem 0; font-family: var(--font-head); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--c-silver); text-align: left; border-bottom: 1px solid var(--c-line); }
.data-table td { padding: 0.7rem 0.9rem 0.7rem 0; border-bottom: 1px solid rgba(192, 192, 192, 0.1); color: var(--c-white); }
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table .num { font-family: var(--font-num); color: var(--c-accent); }

/* ---------- 状态点 ---------- */
.status-dot { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.78rem; color: var(--c-silver); }
.status-dot::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--c-muted); flex-shrink: 0; }
.status-dot--positive::before { background: var(--c-positive); box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.18); }
.status-dot--accent::before { background: var(--c-accent); box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.2); }
.status-dot--warn::before { background: var(--c-accent-deep); box-shadow: 0 0 0 3px rgba(180, 85, 45, 0.2); }

/* ---------- 面包屑 ---------- */
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 0.6rem; padding-block: 1.2rem 0; font-size: 0.8rem; color: var(--c-muted); }
.breadcrumb__link { color: var(--c-silver); transition: color var(--t-fast) var(--ease), padding-left var(--t-fast) var(--ease); }
.breadcrumb__link:hover { color: var(--c-accent); }
.breadcrumb__sep { color: var(--c-muted); opacity: 0.55; }
.breadcrumb__current { color: var(--c-white); }

/* ---------- 响应式图片容器 ---------- */
.image-figure { display: grid; gap: 0.45rem; }
.image-figure__media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: rgba(255, 255, 255, 0.04);
  background-image: var(--grid-h), var(--grid-v);
  background-size: var(--grid-size), var(--grid-size);
  border: 1px solid var(--c-line);
}
.image-figure--portrait .image-figure__media { aspect-ratio: 3 / 4; }
.image-figure--free .image-figure__media { aspect-ratio: auto; min-height: 240px; }
.image-figure__placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-num);
  font-size: 0.76rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-silver);
}
.image-figure__caption { font-size: 0.74rem; color: var(--c-muted); }

/* ---------- 正文排版 ---------- */
.prose { max-width: 72ch; }
.prose h2 { margin: 2.2em 0 0.7em; font-size: clamp(1.4rem, 2.4vw, 1.9rem); }
.prose h3 { margin: 1.8em 0 0.5em; font-size: 1.2rem; }
.prose p { margin: 1em 0; color: rgba(245, 247, 250, 0.88); }
.prose a { text-decoration: underline; text-decoration-color: var(--c-accent); text-underline-offset: 4px; }
.prose ul, .prose ol { margin: 1em 0; padding-left: 1.4em; }
.prose ul { list-style: square; }
.prose ol { list-style: decimal; }
.prose li { margin: 0.4em 0; color: rgba(245, 247, 250, 0.88); }

/* ---------- 分隔线 ---------- */
.divider { height: 1px; border: 0; background: var(--c-line); margin: 2.2rem 0; }

/* ---------- 标记 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.28em 0.65em;
  font-family: var(--font-num);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  color: var(--c-silver);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--c-line);
  border-radius: var(--r-sm);
}
.tag--accent { color: var(--c-accent); border-color: rgba(255, 107, 53, 0.45); }
.tag--positive { color: var(--c-positive); border-color: rgba(76, 175, 80, 0.45); }

/* ---------- 状态提示条 ---------- */
.notice-band {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 1.2rem;
  background: rgba(76, 175, 80, 0.08);
  border: 1px solid rgba(76, 175, 80, 0.35);
  border-radius: var(--r-md);
  font-size: 0.86rem;
  color: var(--c-white);
}
.notice-band::before { content: "✓"; font-family: var(--font-num); font-size: 0.9rem; font-weight: 700; color: var(--c-positive); }

/* ---------- 斜切深色带 ---------- */
.slant-band {
  position: relative;
  margin-block: 3rem;
  padding: clamp(2rem, 5vw, 3.5rem) clamp(1.2rem, 4vw, 3rem);
  background: var(--c-bg-deep);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
  clip-path: polygon(0 3%, 100% 0, 100% 97%, 0 100%);
}

/* ---------- 栅格工具 ---------- */
.grid { display: grid; gap: 1.4rem; }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 190px), 1fr)); }

/* ---------- 章节高亮 ---------- */
.spy-menu { position: sticky; top: calc(var(--header-h) + 1.5rem); display: grid; gap: 0.35rem; align-self: start; font-size: 0.88rem; }
.spy-menu__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0.6rem;
  color: var(--c-silver);
  border-left: 2px solid var(--c-line);
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}
.spy-menu__link::before { content: attr(data-num); font-family: var(--font-num); font-size: 0.68rem; color: var(--c-muted); }
.spy-menu__link[data-active="true"] { color: var(--c-white); border-left-color: var(--c-accent); background: linear-gradient(90deg, rgba(255, 107, 53, 0.12), transparent); }
.spy-menu__link[data-active="true"]::before { color: var(--c-accent); }

/* ---------- 速度斜线背景 ---------- */
.bg-rays {
  background-image:
    repeating-linear-gradient(-58deg, rgba(255, 107, 53, 0.05) 0, rgba(255, 107, 53, 0.05) 1px, transparent 1px, transparent 14px),
    linear-gradient(135deg, rgba(255, 107, 53, 0.14), transparent 50%),
    var(--grid-h),
    var(--grid-v);
  background-size: auto, auto, var(--grid-size), var(--grid-size);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reading-progress { display: none; }
  .index-map__item:hover, .glass-panel:hover { transform: none; }
}