/* =========================================================
   /assets/site.css
   乐动体育 · 共享外壳样式
   ========================================================= */

*,
*::before,
*::after { box-sizing: border-box; }

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

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

ul, ol { list-style: none; }
img, svg, video { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }

:root {
  /* 色板 */
  --ink-900: #06231C;
  --ink-800: #082A21;
  --ink-700: #0E3A2E;
  --line: #174F3C;
  --white: #EDF3EF;
  --lime-signal: #C8FF3D;
  --lime-mute: #8FBF4A;
  --amber-mark: #FFA33C;
  --paper: #F3EBDD;
  --paper-line: #D8CDB8;
  --score-grey: #9BA9A2;
  --paper-ink: #10231D;
  --paper-grey: #55655D;

  /* 字体 */
  --font-display: "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC",
    "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC",
    "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "JetBrains Mono", "Cascadia Mono",
    Menlo, Consolas, "Liberation Mono", monospace;

  /* 尺寸与动效 */
  --edge: clamp(20px, 4vw, 64px);
  --frame: 2px;
  --hard-shadow: 10px 10px 0 rgba(23, 79, 60, .85);
  --dur: 320ms;
  --ease: cubic-bezier(.2, .7, .3, 1);
}

/* ---------- 基础排版 ---------- */

body {
  background: var(--ink-900);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: .01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: .12em;
}

h1 { font-size: clamp(2rem, 5.4vw, 3.35rem); }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.07rem); }
h3 { font-size: clamp(1.1rem, 1.9vw, 1.28rem); letter-spacing: .1em; }

p { line-height: 1.75; }

.prose { max-width: 36em; }
.prose p + p { margin-top: 1.05em; }
.prose h2, .prose h3 { margin-top: 1.6em; margin-bottom: .5em; }
.prose a { color: inherit; border-bottom: 2px solid var(--lime-signal); }
.prose ul, .prose ol { margin: 1em 0; padding-left: 1.3em; list-style: disc; }
.prose li + li { margin-top: .35em; }
.section--paper .prose a { border-bottom-color: var(--paper-ink); }

.mono,
.font-mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .06em;
}

.muted { color: var(--score-grey); }
.section--paper .muted { color: var(--paper-grey); }

.annotation {
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--score-grey);
  writing-mode: vertical-rl;
}
.annotation--rotate {
  writing-mode: horizontal-tb;
  transform: rotate(90deg);
  transform-origin: left top;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

[hidden] { display: none !important; }

/* ---------- 焦点 ---------- */

:focus-visible {
  outline: 2px dashed currentColor;
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: 10px 18px;
  background: var(--lime-signal);
  color: var(--ink-900);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
}
.skip-link:focus { left: 12px; top: 12px; }

#main-content { scroll-margin-top: 120px; }

/* ---------- 容器 ---------- */

.container {
  width: calc(100% - var(--edge) * 2);
  max-width: 1520px;
  margin-inline: auto;
}
.container--wide {
  width: calc(100% - var(--edge) * 2);
  max-width: 1680px;
  margin-inline: auto;
}
.container--narrow {
  width: calc(100% - 48px);
  max-width: 62rem;
  margin-inline: auto;
}
.container--text {
  width: calc(100% - 48px);
  max-width: 44rem;
  margin-inline: auto;
}

/* ---------- 章节 ---------- */

.section { padding-block: clamp(52px, 8vw, 104px); }
.section--tight { padding-block: clamp(32px, 5vw, 56px); }
.section--ink { background: var(--ink-900); }
.section--ink-alt { background: var(--ink-700); }
.section--paper { background: var(--paper); color: var(--paper-ink); }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 32px;
  padding-bottom: 16px;
  border-bottom: var(--frame) solid var(--line);
  margin-bottom: clamp(24px, 4vw, 44px);
}
.section--paper .section__head { border-bottom-color: var(--paper-line); }

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.32rem, 2.6vw, 1.95rem);
  font-weight: 900;
  letter-spacing: .14em;
  line-height: 1.2;
}
.section__note {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--score-grey);
}
.section--paper .section__note { color: var(--paper-grey); }

/* ---------- 页面首屏文字建筑 ---------- */

.page-head { padding-block: clamp(34px, 6vw, 76px) clamp(26px, 4vw, 48px); }
.page-head__kicker {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--lime-signal);
  margin-bottom: 16px;
}
.section--paper .page-head__kicker { color: var(--paper-ink); }
.page-head__title { font-size: clamp(1.85rem, 5vw, 3.2rem); letter-spacing: .1em; }
.page-head__lede {
  margin-top: 18px;
  max-width: 34em;
  font-size: 16px;
  color: var(--score-grey);
}
.section--paper .page-head__lede { color: var(--paper-grey); }

/* ---------- 网格 ---------- */

.grid { display: grid; gap: clamp(20px, 3vw, 36px); }
.grid--5-7 { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.grid--4-5-3 { grid-template-columns: minmax(0, 4fr) minmax(0, 5fr) minmax(0, 3fr); }
.grid--8-2-2 { grid-template-columns: minmax(0, 8fr) minmax(0, 2fr) minmax(0, 2fr); }

/* ---------- 框架与刻度 ---------- */

.frame {
  position: relative;
  border: var(--frame) solid var(--line);
  background: var(--ink-900);
  box-shadow: var(--hard-shadow);
}
.section--paper .frame {
  background: var(--paper);
  border-color: var(--paper-line);
  box-shadow: 10px 10px 0 var(--paper-line);
}

.ticks { display: flex; align-items: flex-end; gap: 6px; height: 18px; }
.ticks__i { display: block; width: 2px; height: 7px; background: var(--line); }
.ticks__i:nth-child(5n + 1) { height: 15px; background: var(--lime-mute); }

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  background: var(--ink-700);
  color: var(--white);
  border: var(--frame) solid var(--line);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
  text-align: center;
  cursor: pointer;
  transition: background-color .2s var(--ease), color .2s var(--ease),
    border-color .2s var(--ease), transform .2s var(--ease);
}
.btn:hover { border-color: var(--lime-signal); color: var(--lime-signal); }
.btn:active { transform: translateY(1px); }
.btn--signal {
  background: var(--lime-signal);
  color: var(--ink-900);
  border-color: var(--lime-signal);
}
.btn--signal:hover { background: transparent; color: var(--lime-signal); }
.btn--ghost { background: transparent; }
.btn--compact { padding: 7px 14px; font-size: 11px; letter-spacing: .12em; }
.btn--block { width: 100%; }

/* ---------- 标签 ---------- */

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  color: var(--score-grey);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
}
.tag--lime { border-color: var(--lime-signal); color: var(--lime-signal); }
.tag--amber { border-color: var(--amber-mark); color: var(--amber-mark); }
.section--paper .tag { border-color: var(--paper-line); color: var(--paper-grey); }
.section--paper .tag--lime { border-color: var(--paper-ink); color: var(--paper-ink); }

/* ---------- 面包屑 ---------- */

.breadcrumb {
  padding-block: 14px;
  border-bottom: 1px solid var(--line);
}
.section--paper .breadcrumb { border-bottom-color: var(--paper-line); }
.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--score-grey);
}
.breadcrumb__item { display: inline-flex; align-items: center; gap: 12px; }
.breadcrumb__item + .breadcrumb__item::before { content: "/"; color: var(--line); }
.breadcrumb__link { transition: color .2s var(--ease); }
.breadcrumb__link:hover { color: var(--lime-signal); }
.breadcrumb__current { color: var(--white); }
.section--paper .breadcrumb__current { color: var(--paper-ink); }
.section--paper .breadcrumb__link:hover { color: var(--paper-ink); }

/* ---------- 数据卡 ---------- */

.datacard {
  position: relative;
  padding: 20px 22px 22px;
  background: var(--ink-700);
  border: var(--frame) solid var(--line);
  box-shadow: 8px 8px 0 rgba(6, 35, 28, .9);
}
.datacard__index {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--lime-mute);
  margin-bottom: 12px;
}
.datacard__label {
  display: block;
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--score-grey);
}
.datacard__value {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: .02em;
  color: var(--lime-signal);
}
.datacard__note {
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--score-grey);
}
.datacard--amber .datacard__value { color: var(--amber-mark); }
.datacard--paper {
  background: var(--paper);
  border-color: var(--paper-line);
  box-shadow: 8px 8px 0 var(--paper-line);
  color: var(--paper-ink);
}
.datacard--paper .datacard__label,
.datacard--paper .datacard__note { color: var(--paper-grey); }
.datacard--paper .datacard__index { color: var(--paper-ink); }
.datacard--paper .datacard__value { color: var(--paper-ink); }

.stack { display: flex; flex-direction: column; }
.stack > .datacard + .datacard { margin-top: 18px; margin-left: 22px; }
.stack--overlap > .datacard + .datacard { margin-top: -14px; margin-left: 24px; }

/* ---------- 索引列表 ---------- */

.index-list { display: flex; flex-direction: column; }
.index-list__item {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}
.index-list__item:last-child { border-bottom: 1px solid var(--line); }
.index-list__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--lime-signal);
  padding-top: 2px;
}
.index-list__body { min-width: 0; }
.index-list__title { font-size: 15px; font-weight: 700; letter-spacing: .06em; }
.index-list__meta { margin-top: 4px; font-size: 12px; color: var(--score-grey); }
.index-list__link:hover .index-list__title { color: var(--lime-signal); }
.section--paper .index-list__item { border-top-color: var(--paper-line); }
.section--paper .index-list__item:last-child { border-bottom-color: var(--paper-line); }
.section--paper .index-list__num { color: var(--paper-grey); }
.section--paper .index-list__link:hover .index-list__title { color: var(--paper-ink); text-decoration: underline; }

/* ---------- 折叠面板 ---------- */

.panel {
  border: var(--frame) solid var(--line);
  background: var(--ink-700);
}
.panel + .panel { margin-top: 10px; }
.panel__summary {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr) 14px;
  gap: 14px;
  align-items: center;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  border-left: 4px solid transparent;
  transition: border-color .26s var(--ease), color .26s var(--ease);
}
.panel__summary::-webkit-details-marker { display: none; }
.panel__summary:hover { color: var(--lime-signal); }
.panel__summary:focus-visible { outline: 2px dashed currentColor; outline-offset: -4px; }
.panel[open] > .panel__summary { border-left-color: var(--lime-signal); }
.panel__index {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--lime-mute);
}
.panel__title { font-size: 15px; font-weight: 700; letter-spacing: .08em; }
.panel__sign { position: relative; width: 13px; height: 13px; justify-self: end; }
.panel__sign::before,
.panel__sign::after { content: ""; position: absolute; background: currentColor; }
.panel__sign::before { left: 0; right: 0; top: 6px; height: 2px; }
.panel__sign::after { top: 0; bottom: 0; left: 6px; width: 2px; transition: transform .26s var(--ease); }
.panel[open] .panel__sign::after { transform: scaleY(0); }
.panel__body {
  padding: 16px 22px 22px 96px;
  border-top: 1px solid var(--line);
  font-size: 15px;
}
.section--paper .panel {
  background: var(--paper);
  border-color: var(--paper-line);
  color: var(--paper-ink);
}
.section--paper .panel__body { border-top-color: var(--paper-line); }
.section--paper .panel__index { color: var(--paper-grey); }
.section--paper .panel__summary:hover { color: var(--paper-ink); }
.section--paper .panel[open] > .panel__summary { border-left-color: var(--paper-ink); }
.section--paper .panel__sign::before,
.section--paper .panel__sign::after { background: var(--paper-ink); }

/* ---------- 筛选 ---------- */

.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-btn {
  padding: 7px 13px;
  background: transparent;
  border: var(--frame) solid var(--line);
  color: var(--score-grey);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease),
    background-color .2s var(--ease);
}
.filter-btn:hover { color: var(--lime-signal); border-color: var(--lime-signal); }
.filter-btn.is-active {
  background: var(--lime-signal);
  border-color: var(--lime-signal);
  color: var(--ink-900);
}
.filter-empty {
  padding: 18px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--score-grey);
}

/* ---------- 横向条带 ---------- */

.band {
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 8px;
  cursor: grab;
  touch-action: pan-y;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}
.band.is-dragging { cursor: grabbing; }
.band::-webkit-scrollbar { height: 8px; }
.band::-webkit-scrollbar-track { background: transparent; }
.band::-webkit-scrollbar-thumb { background: var(--line); }
.band__track { display: flex; gap: 18px; padding: 4px 4px 14px; }
.band__item { flex: 0 0 clamp(230px, 26vw, 320px); }

/* ---------- 图片容器（页面阶段使用） ---------- */

.figure { margin: 0; }
.figure__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: var(--frame) solid var(--line);
  background-color: var(--ink-700);
  background-image: repeating-linear-gradient(
    90deg,
    rgba(23, 79, 60, .55) 0 2px,
    transparent 2px 30px
  );
}
.figure__media > img,
.figure__media > video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.figure__media--wide { aspect-ratio: 21 / 9; }
.figure__media--square { aspect-ratio: 1 / 1; }
.figure__media--tall { aspect-ratio: 3 / 4; }
.figure__caption {
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--score-grey);
}
.section--paper .figure__caption { color: var(--paper-grey); }
.section--paper .figure__media { border-color: var(--paper-line); }

/* ---------- 显现 ---------- */

.js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.js [data-reveal].is-visible { opacity: 1; transform: none; }

/* =========================================================
   头部
   ========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: var(--ink-900);
  border-bottom: var(--frame) solid var(--line);
}

.header__inner {
  max-width: 1520px;
  margin-inline: auto;
  padding: 20px var(--edge) 16px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 20px 32px;
  transition: padding var(--dur) var(--ease);
}

.header__brand {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.brand__link {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
}
.brand__mark {
  padding-left: 12px;
  border-left: 4px solid var(--lime-signal);
  font-family: var(--font-display);
  font-size: clamp(1.24rem, 2.2vw, 1.6rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: .2em;
  color: var(--white);
}
.brand__signature {
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--score-grey);
}
.brand__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--lime-signal);
}
.brand__meta::before {
  content: "";
  display: block;
  width: 30px;
  height: 2px;
  background: var(--line);
}
.brand__meta-readout { display: none; }

.header__rail {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  min-width: 0;
}

.site-nav__list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, auto));
  justify-content: end;
  gap: 4px 26px;
}
.site-nav__link {
  display: inline-block;
  padding: 4px 2px;
  border-bottom: 2px solid transparent;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--white);
  white-space: nowrap;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.site-nav__link:hover { color: var(--lime-signal); border-bottom-color: var(--lime-signal); }
.site-nav__link[aria-current="page"] {
  color: var(--lime-signal);
  border-bottom-color: var(--lime-signal);
}

.header__utility {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
}
.utility__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--score-grey);
}
.utility__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime-signal);
  box-shadow: 0 0 0 3px rgba(200, 255, 61, .16);
}
.utility__link {
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--score-grey);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.utility__link:hover { color: var(--lime-signal); border-bottom-color: var(--lime-signal); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  background: transparent;
  border: var(--frame) solid var(--line);
  color: var(--white);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}
.nav-toggle:hover { color: var(--lime-signal); border-color: var(--lime-signal); }
.nav-toggle[aria-expanded="true"] {
  background: var(--lime-signal);
  border-color: var(--lime-signal);
  color: var(--ink-900);
}
.nav-toggle__bars { display: inline-flex; flex-direction: column; gap: 3px; width: 16px; }
.nav-toggle__bars i { display: block; height: 2px; background: currentColor; }

.header__progress {
  height: 2px;
  background: var(--line);
  overflow: hidden;
}
.header__progress-bar {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--lime-signal);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .12s linear;
}

.site-header.is-compact .header__inner { padding-top: 10px; padding-bottom: 10px; }
.site-header.is-compact .brand__meta-season { display: none; }
.site-header.is-compact .brand__meta-readout { display: inline; }

@media (min-width: 900px) {
  .site-header.is-compact .site-nav__list {
    grid-template-columns: repeat(6, minmax(0, auto));
  }
}

/* =========================================================
   页脚
   ========================================================= */

.site-footer {
  background: var(--ink-800);
  border-top: var(--frame) solid var(--line);
  color: var(--white);
}

.footer__inner {
  max-width: 1520px;
  margin-inline: auto;
  padding: clamp(40px, 6vw, 72px) var(--edge) clamp(28px, 4vw, 48px);
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: clamp(28px, 5vw, 64px);
}

.footer__brand { display: flex; flex-direction: column; gap: 10px; }
.footer__brand-mark {
  padding-left: 12px;
  border-left: 4px solid var(--lime-signal);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: .2em;
  line-height: 1.2;
}
.footer__brand-sign { font-size: 11px; letter-spacing: .2em; color: var(--score-grey); }
.footer__brand-note {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--lime-signal);
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px 24px;
}
.footer__col { min-width: 0; }
.footer__col-title {
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--lime-mute);
}
.footer__list { display: flex; flex-direction: column; gap: 10px; }
.footer__link {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--white);
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.footer__link:hover { color: var(--lime-signal); border-bottom-color: var(--lime-signal); }

.footer__contact { font-size: 12px; }
.footer__contact-row {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 10px;
  padding: 7px 0;
  border-top: 1px solid var(--line);
}
.footer__contact-row dt {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--score-grey);
}
.footer__contact-row dd {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

.footer__legal {
  border-top: 1px solid var(--line);
  padding: 20px var(--edge) 28px;
}
.footer__legal-inner {
  max-width: 1520px;
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 28px;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--score-grey);
}
.footer__legal-line { line-height: 1.7; }

/* =========================================================
   响应式
   ========================================================= */

@media (max-width: 1199px) {
  .grid--4-5-3 { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .grid--4-5-3 > :last-child { grid-column: 1 / -1; }
}

@media (max-width: 1023px) {
  .footer__inner { grid-template-columns: minmax(0, 1fr); }
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 899px) {
  body { font-size: 16px; }

  .grid--5-7,
  .grid--4-5-3,
  .grid--8-2-2 { grid-template-columns: minmax(0, 1fr); }
  .grid--4-5-3 > :last-child { grid-column: auto; }

  .header__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 20px;
  }
  .header__brand { order: 1; flex: 1 1 auto; gap: 6px; }
  .brand__mark { font-size: 1.12rem; letter-spacing: .16em; padding-left: 10px; border-left-width: 3px; }
  .brand__signature { font-size: 10px; letter-spacing: .16em; }
  .brand__meta { font-size: 11px; }
  .brand__meta::before { width: 18px; }

  .nav-toggle { order: 2; display: inline-flex; }

  .header__rail { display: contents; }

  .site-nav {
    order: 3;
    flex: 1 1 100%;
    display: none;
    padding-top: 10px;
    border-top: var(--frame) solid var(--line);
  }
  .site-nav[data-open="true"] { display: block; }
  .site-nav__list {
    grid-template-columns: minmax(0, 1fr);
    justify-content: start;
    gap: 0;
  }
  .site-nav__item { border-bottom: 1px solid var(--line); }
  .site-nav__link {
    display: block;
    padding: 13px 4px;
    border-bottom: none;
    font-size: 15px;
    transition: color .2s var(--ease), padding-left .2s var(--ease);
  }
  .site-nav__link:hover,
  .site-nav__link[aria-current="page"] { padding-left: 12px; }

  .header__utility {
    order: 4;
    flex: 1 1 100%;
    justify-content: flex-start;
    gap: 12px;
    padding-top: 2px;
  }

  .panel__summary { grid-template-columns: 54px minmax(0, 1fr) 14px; gap: 10px; padding: 14px 16px; }
  .panel__body { padding: 14px 16px 18px; }

  .index-list__item { grid-template-columns: 62px minmax(0, 1fr); gap: 10px; }

  .footer__grid { gap: 24px 20px; }
}

@media (max-width: 599px) {
  .footer__grid { grid-template-columns: minmax(0, 1fr); }
  .band__item { flex-basis: 78vw; }
  .page-head__lede { font-size: 15px; }
}

/* =========================================================
   动效偏好
   ========================================================= */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
  .band { cursor: default; }
}