/* ============================================================
   四季体育 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 双层头部 / 图例式页脚
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

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

ul, ol { list-style: none; }
img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }

/* ---------- 2. Tokens ---------- */
:root {
  /* 品牌矿物色 */
  --c-ink: #081C16;
  --c-forest: #0F2A22;
  --c-moss: #4F8F6B;
  --c-spring: #7BD88F;
  --c-summer: #F08A3C;
  --c-autumn: #E7B84B;
  --c-winter: #4D8DDA;
  --c-paper: #F4F1E6;
  --c-rock: #8A948E;
  --c-glass: rgba(244, 241, 230, 0.10);
  --c-alert: #D9655B;

  --line-soft: rgba(244, 241, 230, 0.10);
  --line: rgba(244, 241, 230, 0.16);
  --line-strong: rgba(244, 241, 230, 0.30);

  --bg: var(--c-ink);
  --fg: var(--c-paper);
  --fg-dim: var(--c-rock);

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

  --step-display: clamp(2.75rem, 7.4vw, 5.5rem);
  --step-h2: clamp(1.65rem, 3.6vw, 2.75rem);
  --step-num: clamp(1.5rem, 3vw, 2.25rem);

  --shell: 1240px;
  --pad-inline: clamp(16px, 4vw, 40px);

  --r-sm: 4px;
  --r-md: 10px;
  --r-lg: 18px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 3. Base ---------- */
body {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background-color: var(--c-ink);
  background-image:
    radial-gradient(70vw 48vw at 92% -8%, rgba(240, 138, 60, 0.10), transparent 68%),
    radial-gradient(62vw 46vw at -12% 16%, rgba(77, 141, 218, 0.09), transparent 68%),
    linear-gradient(180deg, rgba(15, 42, 34, 0.55), transparent 420px);
  background-repeat: no-repeat;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main { flex: 1 0 auto; display: block; }

::selection { background: rgba(240, 138, 60, 0.32); color: var(--c-paper); }

:where(a, button, [tabindex]):focus-visible {
  outline: 2px solid var(--c-autumn);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ---------- 4. 排版工具 ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--step-display);
  line-height: 0.94;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--c-moss);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
}

.lede {
  max-width: 58ch;
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  line-height: 1.8;
  color: rgba(244, 241, 230, 0.84);
}

.muted { color: var(--c-rock); }
.mono { font-family: var(--font-mono); letter-spacing: 0.02em; }

.numeric {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--c-paper);
}

.rule {
  height: 1px;
  border: 0;
  background: var(--line);
  margin-block: clamp(1.5rem, 3vw, 2.5rem);
}

.season-ribbon {
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    var(--c-spring) 0 25%,
    var(--c-summer) 25% 50%,
    var(--c-autumn) 50% 75%,
    var(--c-winter) 75% 100%
  );
}

/* ---------- 5. 布局 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--pad-inline);
}

.section { padding-block: clamp(2.5rem, 6vw, 5rem); position: relative; }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.75rem 1.75rem;
  margin-bottom: clamp(1.25rem, 3vw, 2.25rem);
}

.section__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--step-h2);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--c-paper);
}

.section__lede {
  max-width: 56ch;
  font-size: 0.975rem;
  line-height: 1.75;
  color: var(--c-rock);
}

.grid { display: grid; gap: clamp(14px, 2.2vw, 26px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--auto { grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr)); }

/* ---------- 6. 可访问性 ---------- */
.is-visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: 6px;
  left: 8px;
  z-index: 200;
  padding: 0.62em 1.05em;
  border-radius: var(--r-sm);
  background: var(--c-paper);
  color: var(--c-ink);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  transform: translateY(-180%);
  transition: transform 0.18s var(--ease);
}
.skip-link:focus { transform: translateY(0); }

/* ---------- 7. 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(8, 28, 22, 0.86);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--line);
}

.read-progress {
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: rgba(244, 241, 230, 0.08);
  pointer-events: none;
  z-index: 2;
}
.read-progress__bar {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(
    90deg,
    var(--c-spring),
    var(--c-summer) 45%,
    var(--c-autumn) 70%,
    var(--c-winter)
  );
  transition: width 0.1s linear;
}

.header-rail {
  overflow: hidden;
  max-height: 58px;
  transition: max-height 0.3s var(--ease), opacity 0.22s var(--ease);
}
.header-rail__inner {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2.4vw, 28px);
  min-height: 44px;
  padding-block: 6px;
}
.site-header[data-compact] .header-rail {
  max-height: 0;
  opacity: 0;
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.brand__mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  flex: none;
  border-radius: 6px;
  background: linear-gradient(145deg, var(--c-moss), #1b4634);
  box-shadow: inset 0 0 0 1px rgba(244, 241, 230, 0.18);
  color: var(--c-paper);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  line-height: 1;
  transition: box-shadow 0.18s var(--ease);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.15; min-width: 0; }
.brand__name {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--c-paper);
  white-space: nowrap;
}
.brand__line {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--c-rock);
  white-space: nowrap;
}
.brand:hover .brand__mark { box-shadow: inset 0 0 0 1px var(--c-spring), 0 0 12px rgba(123, 216, 143, 0.28); }

/* 赛季色带 */
.season-band {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-inline: auto;
}
.season-band__item {
  --dot: var(--c-moss);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: rgba(244, 241, 230, 0.03);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(244, 241, 230, 0.68);
  white-space: nowrap;
}
.season-band__item::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--dot);
  box-shadow: 0 0 8px var(--dot);
  flex: none;
}
.season-band__item--spring { --dot: var(--c-spring); }
.season-band__item--summer { --dot: var(--c-summer); }
.season-band__item--autumn { --dot: var(--c-autumn); }
.season-band__item--winter { --dot: var(--c-winter); }

/* 更新时间灯 */
.header-stamp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-rock);
  white-space: nowrap;
}
.header-stamp__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-spring);
  box-shadow: 0 0 0 3px rgba(123, 216, 143, 0.14);
  animation: breathe 2.2s ease-in-out infinite;
}
.header-stamp__label { letter-spacing: 0.16em; }
.header-stamp__value {
  color: var(--c-paper);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
}

@keyframes breathe {
  0%, 100% { opacity: 0.45; }
  50% { opacity: 1; }
}

/* 下层栏目导轨 */
.header-deck {
  position: relative;
  border-top: 1px solid var(--line-soft);
}
.header-deck__inner {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 26px);
  min-height: 56px;
}
.site-header[data-compact] .header-deck__inner { min-height: 52px; }

.site-nav__list {
  counter-reset: nav;
  display: flex;
  align-items: center;
  gap: clamp(4px, 1.5vw, 20px);
}
.site-nav__item { display: flex; }
.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  padding: 16px 2px;
  font-size: 14.5px;
  font-weight: 600;
  color: rgba(244, 241, 230, 0.70);
  transition: color 0.18s var(--ease);
}
.site-nav__link::before {
  counter-increment: nav;
  content: "0" counter(nav);
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--c-moss);
  transition: color 0.18s var(--ease);
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 6px;
  height: 2px;
  background: var(--c-paper);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.22s var(--ease), background-color 0.18s var(--ease);
}
.site-nav__link:hover { color: var(--c-paper); }
.site-nav__link:hover::after { transform: scaleX(1); background: var(--c-moss); }
.site-nav__link[aria-current="page"] { color: var(--c-paper); }
.site-nav__link[aria-current="page"]::before { color: var(--c-autumn); }
.site-nav__link[aria-current="page"]::after { transform: scaleX(1); background: var(--c-summer); }

.deck-cta {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid rgba(240, 138, 60, 0.5);
  border-radius: 999px;
  background: rgba(240, 138, 60, 0.10);
  color: var(--c-summer);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease),
              border-color 0.18s var(--ease);
}
.deck-cta::after {
  content: "→";
  font-family: var(--font-mono);
  transition: transform 0.18s var(--ease);
}
.deck-cta:hover {
  background: var(--c-summer);
  border-color: var(--c-summer);
  color: #08160F;
}
.deck-cta:hover::after { transform: translateX(3px); }

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 12px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-paper);
}
.nav-toggle__label { white-space: nowrap; }
.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 22px;
  height: 16px;
  flex: none;
}
.nav-toggle__bars span {
  display: block;
  height: 2px;
  width: 100%;
  border-radius: 2px;
  background: var(--c-paper);
  transition: transform 0.22s var(--ease), opacity 0.18s var(--ease), width 0.22s var(--ease);
}
.nav-toggle__bars span:nth-child(2) { width: 72%; background: var(--c-summer); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 8. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: auto;
  padding-top: clamp(2.5rem, 5vw, 4rem);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(15, 42, 34, 0.92), #06150F 72%);
  color: rgba(244, 241, 230, 0.84);
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--c-spring),
    var(--c-summer),
    var(--c-autumn),
    var(--c-winter)
  );
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 0.8fr 0.8fr 1.4fr;
  gap: clamp(20px, 3vw, 40px);
  padding-bottom: clamp(2rem, 4vw, 3rem);
}

.footer-brand__line {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}
.footer-brand__note {
  margin-top: 0.7rem;
  max-width: 34ch;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--c-rock);
}

.foot-legend {
  margin-top: 1.15rem;
  display: grid;
  gap: 0.4rem;
}
.foot-legend__item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-rock);
}
.foot-legend__swatch {
  width: 10px;
  height: 10px;
  flex: none;
  border-radius: 2px;
  background: var(--c-moss);
  box-shadow: 0 0 8px rgba(244, 241, 230, 0.12);
}
.foot-legend__swatch--spring { background: var(--c-spring); }
.foot-legend__swatch--summer { background: var(--c-summer); }
.foot-legend__swatch--autumn { background: var(--c-autumn); }
.foot-legend__swatch--winter { background: var(--c-winter); }

.footer-col__title {
  margin-bottom: 0.85rem;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-moss);
}
.footer-col__list { display: grid; gap: 0.55rem; }
.footer-col__link {
  position: relative;
  display: inline-block;
  font-size: 14.5px;
  color: rgba(244, 241, 230, 0.76);
  transition: color 0.18s var(--ease), transform 0.18s var(--ease);
}
.footer-col__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1px;
  background: var(--c-autumn);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.2s var(--ease);
}
.footer-col__link:hover { color: var(--c-paper); }
.footer-col__link:hover::after { transform: scaleX(1); }

.footer-contact__list { display: grid; gap: 0.7rem; }
.footer-contact__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 0.5rem;
  font-size: 13.5px;
  line-height: 1.65;
}
.footer-contact__key {
  padding-top: 0.18em;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-moss);
}
.footer-contact__value {
  color: rgba(244, 241, 230, 0.88);
  overflow-wrap: anywhere;
}
.footer-contact__note {
  margin-top: 1rem;
  padding-left: 0.75rem;
  border-left: 2px solid var(--c-moss);
  font-size: 12px;
  line-height: 1.7;
  color: var(--c-rock);
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.5rem;
  padding-block: 1.25rem;
  border-top: 1px solid var(--line-soft);
}
.footer-legal,
.footer-copy {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--c-rock);
}

.to-top {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.5em 0.95em;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-rock);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease),
              background-color 0.18s var(--ease);
}
.to-top__arrow {
  color: var(--c-autumn);
  transition: transform 0.18s var(--ease);
}
.to-top:hover {
  color: var(--c-paper);
  border-color: rgba(231, 184, 75, 0.6);
  background: rgba(231, 184, 75, 0.10);
}
.to-top:hover .to-top__arrow { transform: translateY(-2px); }

/* ---------- 9. 通用组件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.72em 1.35em;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease),
              border-color 0.18s var(--ease);
}
.btn--primary {
  background: var(--c-summer);
  border-color: var(--c-summer);
  color: #08160F;
}
.btn--primary:hover { background: #FFA15C; border-color: #FFA15C; }
.btn--ghost {
  background: var(--c-glass);
  border-color: var(--line-strong);
  color: var(--c-paper);
}
.btn--ghost:hover { border-color: var(--c-spring); color: var(--c-spring); }

.panel {
  position: relative;
  padding: clamp(16px, 2.4vw, 28px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--c-forest);
}
.panel--glass {
  background: var(--c-glass);
  border-color: var(--line);
  -webkit-backdrop-filter: blur(12px) saturate(130%);
  backdrop-filter: blur(12px) saturate(130%);
}

.card {
  position: relative;
  padding: clamp(14px, 2vw, 22px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--c-forest);
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}
.card:hover { border-color: var(--line-strong); background: #113026; }
.card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45em 1em;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--c-rock);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.18em 0.6em;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: rgba(244, 241, 230, 0.04);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-rock);
}
.tag--spring { color: var(--c-spring); border-color: rgba(123, 216, 143, 0.42); background: rgba(123, 216, 143, 0.10); }
.tag--summer { color: var(--c-summer); border-color: rgba(240, 138, 60, 0.42); background: rgba(240, 138, 60, 0.10); }
.tag--autumn { color: var(--c-autumn); border-color: rgba(231, 184, 75, 0.42); background: rgba(231, 184, 75, 0.10); }
.tag--winter { color: var(--c-winter); border-color: rgba(77, 141, 218, 0.42); background: rgba(77, 141, 218, 0.10); }
.tag--alert { color: var(--c-alert); border-color: rgba(217, 101, 91, 0.42); background: rgba(217, 101, 91, 0.10); }

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--c-rock);
}
.status::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-rock);
  flex: none;
}
.status--done::before { background: var(--c-spring); }
.status--live::before { background: var(--c-summer); animation: breathe 2.4s ease-in-out infinite; }
.status--next::before { background: var(--c-winter); }

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-rock);
}
.breadcrumb__item { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumb__item[aria-current="page"] { color: var(--c-paper); }
.breadcrumb__link { color: var(--c-rock); transition: color 0.18s var(--ease); }
.breadcrumb__link:hover { color: var(--c-paper); }
.breadcrumb__sep { color: var(--c-moss); }

.prose {
  max-width: 72ch;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: rgba(244, 241, 230, 0.86);
}
.prose > * + * { margin-top: 1.1em; }
.prose h2 {
  margin-top: 1.9em;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--c-paper);
}
.prose h3 {
  margin-top: 1.6em;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--c-paper);
}
.prose a { color: var(--c-winter); text-decoration: underline; text-underline-offset: 3px; }
.prose a:hover { color: var(--c-spring); }
.prose li { position: relative; padding-left: 1.1em; }
.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--c-moss);
}
.prose strong { color: var(--c-paper); font-weight: 700; }
.prose blockquote {
  padding: 0.2em 0 0.2em 1.1em;
  border-left: 2px solid var(--c-autumn);
  color: rgba(244, 241, 230, 0.9);
}
.prose code {
  padding: 0.1em 0.4em;
  border-radius: 3px;
  background: rgba(244, 241, 230, 0.08);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

/* 图片容器基础规则 */
.figure {
  --fig-a: rgba(79, 143, 107, 0.30);
  --fig-b: rgba(8, 28, 22, 0.92);
  margin: 0;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background:
    repeating-linear-gradient(90deg, rgba(244, 241, 230, 0.05) 0 1px, transparent 1px 64px),
    linear-gradient(140deg, var(--fig-a), var(--fig-b));
}
.figure--spring { --fig-a: rgba(123, 216, 143, 0.28); }
.figure--summer { --fig-a: rgba(240, 138, 60, 0.26); }
.figure--autumn { --fig-a: rgba(231, 184, 75, 0.26); }
.figure--winter { --fig-a: rgba(77, 141, 218, 0.26); }
.figure__img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: transparent;
}
.figure--wide .figure__img { aspect-ratio: 21 / 9; }
.figure--portrait .figure__img { aspect-ratio: 3 / 4; }
.figure__caption {
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  background: rgba(8, 28, 22, 0.6);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--c-rock);
}

/* ---------- 10. 进场 ---------- */
[data-js] [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}
[data-js] [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 11. 响应式 ---------- */
@media (max-width: 1080px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 920px) {
  html { scroll-padding-top: 96px; }

  .nav-toggle { display: flex; }
  .deck-cta { display: none; }
  .header-deck__inner { flex-wrap: wrap; }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    max-height: calc(100dvh - 120px);
    overflow-y: auto;
    padding: 4px var(--pad-inline) 18px;
    background: rgba(15, 42, 34, 0.98);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 26px 50px rgba(0, 0, 0, 0.45);
  }
  .site-nav[data-open] { display: block; }
  .site-nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav__link {
    width: 100%;
    padding: 14px 2px;
    font-size: 16.5px;
    border-bottom: 1px solid var(--line-soft);
  }
  .site-nav__link::after { display: none; }
  .site-nav__item:last-child .site-nav__link { border-bottom: 0; }
}

@media (max-width: 760px) {
  .grid--2,
  .grid--3 { grid-template-columns: 1fr; }
  .header-stamp__label { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .to-top { margin-left: 0; }
}

@media (max-width: 560px) {
  .season-band__item {
    gap: 0;
    padding: 5px;
    font-size: 0;
    letter-spacing: 0;
  }
  .brand__line { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-base { gap: 0.6rem; }
}

/* ---------- 12. 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  [data-js] [data-reveal] { opacity: 1; transform: none; transition: none; }
  .header-stamp__dot,
  .status--live::before { animation: none; opacity: 1; }
}