/* ============================================================
   米兰体育在线 · 共享样式表 /assets/site.css
   骨架：深场黑 + 圣西罗红；分区：宁夏夜靛；数据：沙丘金
   ============================================================ */

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

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

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

ul, ol { list-style: none; }

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

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

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

table { border-collapse: collapse; }

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

/* ---------- 2. 变量 ---------- */
:root {
  --c-red: #C8102E;
  --c-red-deep: #9E0C24;
  --c-black: #0E0F13;
  --c-carbon: #1B1E26;
  --c-indigo: #16234C;
  --c-indigo-light: #2B3A72;
  --c-gold: #D9A83C;
  --c-gold-light: #F2DCA6;
  --c-paper: #F3F0E9;
  --c-ink: #14161C;
  --c-stand: #7B85A0;
  --c-text-soft: #C9CEDB;
  --c-line: rgba(123, 133, 160, .28);
  --c-line-strong: rgba(123, 133, 160, .5);
  --c-line-ink: rgba(20, 22, 28, .18);

  --font-head: "Barlow Condensed", "Oswald", "Arial Narrow", "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  --font-data: "IBM Plex Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --wrap: 1240px;
  --pad: 20px;

  --chamfer: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  --chamfer-sm: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));

  --ease: cubic-bezier(.2, .7, .3, 1);
}

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

/* ---------- 3. 基础排版 ---------- */
body {
  background: var(--c-black);
  color: var(--c-paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

p { max-width: 68ch; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: .02em;
}

::selection { background: var(--c-red); color: #fff; }

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

/* ---------- 4. 通用工具 ---------- */
.wrap {
  width: min(100% - (var(--pad) * 2), var(--wrap));
  margin-inline: auto;
}

.wrap--narrow { width: min(100% - (var(--pad) * 2), 68ch); }

.surface-paper { background: var(--c-paper); color: var(--c-ink); }
.surface-indigo { background: var(--c-indigo); color: var(--c-paper); }
.surface-carbon { background: var(--c-carbon); color: var(--c-paper); }

.surface-paper h1,
.surface-paper h2,
.surface-paper h3,
.surface-paper .t-display,
.surface-paper .t-chapter,
.surface-paper .t-sub { color: var(--c-ink); }

.surface-paper .lede { color: #3C4150; }
.surface-paper .band__num,
.surface-paper .eyebrow { color: #8A6414; }
.surface-paper .band__label { color: #5B6070; }
.surface-paper .band__rule { background: linear-gradient(90deg, var(--c-red), transparent); }
.surface-paper .data--big { color: #9B6F12; }

.section { padding-block: 96px; }
.section--tight { padding-block: 48px; }
.section--last { padding-bottom: 48px; }

/* ---------- 5. 标题与文本 ---------- */
.t-display {
  font-size: clamp(40px, 6vw, 88px);
  line-height: .95;
  text-transform: uppercase;
}

.t-chapter {
  font-size: clamp(28px, 3.2vw, 44px);
  line-height: 1.08;
  text-transform: uppercase;
}

.t-sub {
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.2;
}

.t-outline {
  -webkit-text-stroke: 1px var(--c-red);
  color: transparent;
}

.surface-paper .t-outline { -webkit-text-stroke-color: var(--c-red-deep); }

.eyebrow {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.lede {
  font-size: clamp(17px, 1.5vw, 20px);
  color: var(--c-text-soft);
}

.data {
  font-family: var(--font-data);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.data--big {
  font-size: clamp(36px, 5vw, 72px);
  line-height: 1;
  color: var(--c-gold);
}

.data--gold { color: var(--c-gold); }
.data--mute { color: var(--c-stand); }

/* ---------- 6. 链接与按钮 ---------- */
.link-line {
  position: relative;
  display: inline-block;
  color: var(--c-paper);
}

.link-line::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .18s var(--ease);
}

.link-line:hover::after,
.link-line:focus-visible::after { transform: scaleX(1); }

.surface-paper .link-line { color: var(--c-ink); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  border: 1px solid transparent;
  clip-path: var(--chamfer);
  transition: background-color .18s var(--ease), color .18s var(--ease),
              border-color .18s var(--ease), transform .18s var(--ease);
}

.btn--primary {
  background: var(--c-red);
  color: #fff;
}

.btn--primary:hover {
  background: var(--c-red-deep);
  transform: translateY(-2px);
}

.btn--ghost {
  border-color: var(--c-line-strong);
  color: var(--c-paper);
  background: transparent;
}

.btn--ghost:hover {
  border-color: var(--c-gold);
  color: var(--c-gold-light);
}

.btn--ink {
  background: var(--c-ink);
  color: var(--c-paper);
}

.btn--ink:hover { background: #000; }

.surface-paper .btn--ghost {
  border-color: var(--c-line-ink);
  color: var(--c-ink);
}

.surface-paper .btn--ghost:hover {
  background: var(--c-ink);
  border-color: var(--c-ink);
  color: var(--c-paper);
}

/* ---------- 7. 标签 / 色带 / 面板 / 框景 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  background: var(--c-indigo);
  color: #C9D2EE;
  border: 1px solid var(--c-indigo-light);
}

.tag--gold {
  background: rgba(217, 168, 60, .14);
  color: var(--c-gold-light);
  border-color: rgba(217, 168, 60, .45);
}

.tag--red {
  background: rgba(200, 16, 46, .16);
  color: #FFB3C0;
  border-color: rgba(200, 16, 46, .5);
}

.band {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
}

.band__num {
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--c-gold);
}

.band__rule {
  flex: 1 1 auto;
  height: 2px;
  background: linear-gradient(90deg, var(--c-red), transparent);
}

.band__label {
  font-family: var(--font-head);
  font-size: 13px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--c-stand);
  white-space: nowrap;
}

.panel {
  position: relative;
  padding: 24px;
  background: var(--c-carbon);
  clip-path: var(--chamfer);
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--c-line);
  clip-path: var(--chamfer);
  pointer-events: none;
}

.panel::after {
  content: "";
  position: absolute;
  top: 0;
  right: 12px;
  width: 28px;
  height: 3px;
  background: var(--c-red);
  transition: transform .18s var(--ease);
}

.panel:hover::after { transform: translateY(2px); }

.panel--paper { background: var(--c-paper); color: var(--c-ink); }
.panel--paper::before { border-color: var(--c-line-ink); }
.panel--indigo { background: var(--c-indigo); }
.panel--flush { padding: 0; }
.panel--flush::before { border-color: transparent; }

.panel__title {
  font-family: var(--font-head);
  font-size: 20px;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.panel__meta {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-stand);
}

.surface-paper .panel--paper .panel__meta { color: #5B6070; }

.frame {
  position: relative;
  padding: clamp(20px, 3vw, 40px);
  border: 1px solid var(--c-line);
  background: linear-gradient(180deg, rgba(22, 35, 76, .5), rgba(14, 15, 19, .2));
}

.frame::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: -1px;
  height: 8px;
  background: repeating-linear-gradient(90deg, var(--c-line-strong) 0 1px, transparent 1px 16px);
  pointer-events: none;
}

.frame::after {
  content: "";
  position: absolute;
  left: -1px; bottom: -1px;
  width: 22px; height: 22px;
  border-left: 2px solid var(--c-red);
  border-bottom: 2px solid var(--c-red);
  pointer-events: none;
}

.frame__inner { position: relative; }

/* ---------- 8. 网格与图片容器 ---------- */
.grid { display: grid; gap: 22px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--c-carbon);
  border: 1px solid var(--c-line);
  clip-path: var(--chamfer);
}

.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }

.media--grain::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px);
  background-size: 3px 3px;
  mix-blend-mode: overlay;
  pointer-events: none;
}

.media__cap {
  margin-top: 8px;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--c-stand);
}

.surface-paper .media { border-color: var(--c-line-ink); background: #E4E0D6; }
.surface-paper .media__cap { color: #5B6070; }

/* ---------- 9. 面包屑 ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-block: 14px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-stand);
}

.crumbs__link {
  color: var(--c-stand);
  transition: color .18s var(--ease);
}

.crumbs__link:hover { color: var(--c-paper); }

.crumbs__sep { color: var(--c-red); }

.crumbs__current { color: var(--c-paper); }

.surface-paper .crumbs,
.surface-paper .crumbs__link { color: #5B6070; }
.surface-paper .crumbs__link:hover,
.surface-paper .crumbs__current { color: var(--c-ink); }

/* ---------- 10. 表格 / 折叠 / 时间轴 / 筛选 ---------- */
.table-wrap { overflow-x: auto; }

.table {
  width: 100%;
  min-width: 520px;
  font-size: 15px;
}

.table caption {
  padding-bottom: 10px;
  text-align: left;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-stand);
}

.table th {
  padding: 8px 10px;
  text-align: left;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-stand);
  border-bottom: 1px solid var(--c-indigo-light);
}

.table td {
  padding: 10px;
  border-bottom: 1px solid var(--c-line);
}

.table tbody tr { transition: background-color .18s var(--ease); }
.table tbody tr:hover { background: rgba(43, 58, 114, .28); }
.table tbody tr:focus-within { background: rgba(43, 58, 114, .38); }

.table .is-num {
  text-align: right;
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  color: var(--c-gold);
}

.table--paper { color: var(--c-ink); }
.table--paper th { color: #5B6070; border-bottom-color: var(--c-line-ink); }
.table--paper td { border-bottom-color: var(--c-line-ink); }
.table--paper tbody tr:hover { background: rgba(22, 35, 76, .08); }
.table--paper .is-num { color: #8A6414; }

.fold {
  background: var(--c-carbon);
  border: 1px solid var(--c-line);
  clip-path: var(--chamfer-sm);
}

.fold + .fold { margin-top: 10px; }

.fold summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  cursor: pointer;
  font-family: var(--font-head);
  font-size: 18px;
  letter-spacing: .04em;
  list-style: none;
}

.fold summary::-webkit-details-marker { display: none; }
.fold summary::marker { content: ""; }

.fold__mark {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  background: var(--c-red);
  clip-path: var(--chamfer-sm);
  transition: transform .18s var(--ease);
}

.fold[open] .fold__mark { transform: rotate(90deg); }

.fold__body {
  padding: 0 18px 18px;
  color: var(--c-text-soft);
}

.surface-paper .fold { background: var(--c-paper); border-color: var(--c-line-ink); }
.surface-paper .fold__body { color: #3C4150; }

.timeline {
  display: flex;
  gap: 18px;
  overflow-x: auto;
  padding-bottom: 14px;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}

.timeline::-webkit-scrollbar { height: 6px; }
.timeline::-webkit-scrollbar-track { background: var(--c-indigo); }
.timeline::-webkit-scrollbar-thumb { background: var(--c-red); }

.timeline__item {
  flex: 0 0 min(320px, 78vw);
  scroll-snap-align: start;
}

.filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.filter__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.filter__label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-stand);
  border: 1px solid var(--c-line);
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.filter__label:hover {
  color: var(--c-paper);
  border-color: var(--c-indigo-light);
}

.filter__input:checked + .filter__label {
  background: var(--c-red);
  border-color: var(--c-red);
  color: #fff;
}

.filter__input:focus-visible + .filter__label {
  outline: 2px solid var(--c-gold);
  outline-offset: 2px;
}

/* ---------- 11. 页头 ---------- */
.skip-link {
  position: absolute;
  left: 12px;
  top: -70px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--c-red);
  color: #fff;
  font-size: 14px;
  letter-spacing: .04em;
  transition: top .18s var(--ease);
}

.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--c-black);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow .18s var(--ease), border-color .18s var(--ease);
}

.site-header[data-scrolled] {
  border-bottom-color: var(--c-indigo-light);
  box-shadow: 0 14px 32px rgba(0, 0, 0, .48);
}

.scroll-rail {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  pointer-events: none;
  background: transparent;
}

.scroll-rail__fill {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--c-red), var(--c-gold));
  transition: width .12s linear;
}

/* 命令栏 */
.cmd-bar {
  background: var(--c-carbon);
  border-bottom: 1px solid var(--c-line);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .06em;
}

.cmd-bar__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 40px;
}

.cmd-bar__label {
  color: var(--c-stand);
  text-transform: uppercase;
  white-space: nowrap;
}

.cmd-list {
  display: flex;
  gap: 4px;
  flex: 1 1 auto;
  min-width: 0;
}

.cmd-list__item { display: inline-flex; }

.cmd-link {
  display: inline-block;
  padding: 5px 10px;
  color: var(--c-text-soft);
  border: 1px solid transparent;
  white-space: nowrap;
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.cmd-link:hover {
  color: #fff;
  border-color: var(--c-red);
  background: rgba(200, 16, 46, .14);
}

.cmd-state {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-left: auto;
  flex: 0 0 auto;
  white-space: nowrap;
}

.cmd-state__num {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--c-gold);
}

.cmd-state__name { color: var(--c-paper); }

/* 品牌条 */
.masthead {
  position: relative;
  background: var(--c-black);
}

.masthead__inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 66px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: var(--c-red);
  color: #fff;
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  clip-path: var(--chamfer);
}

.brand__text { display: block; }

.brand__name {
  display: block;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .12em;
  line-height: 1.1;
  color: var(--c-paper);
}

.brand__line {
  display: block;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--c-stand);
}

/* 移动按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  margin-left: auto;
  padding: 9px 13px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--c-paper);
  border: 1px solid var(--c-line-strong);
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.nav-toggle:hover { border-color: var(--c-gold); color: var(--c-gold-light); }

.nav-toggle[aria-expanded="true"] {
  background: rgba(200, 16, 46, .18);
  border-color: var(--c-red);
  color: #fff;
}

.nav-toggle__bars {
  display: grid;
  gap: 3px;
  width: 16px;
}

.nav-toggle__bars i {
  display: block;
  height: 2px;
  background: currentColor;
}

.nav-toggle__label { white-space: nowrap; }

/* 主导航 */
.primary-nav { margin-left: auto; }

.primary-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: wrap;
}

.primary-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 10px 12px;
  font-size: 15px;
  color: var(--c-text-soft);
  transition: color .18s var(--ease);
}

.primary-nav__link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 5px;
  height: 2px;
  background: var(--c-red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .18s var(--ease);
}

.primary-nav__link:hover { color: var(--c-paper); }
.primary-nav__link:hover::after { transform: scaleX(1); }

.primary-nav__index {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--c-stand);
  transition: color .18s var(--ease);
}

.primary-nav__link[aria-current="page"] { color: #fff; }
.primary-nav__link[aria-current="page"]::after { transform: scaleX(1); }
.primary-nav__link[aria-current="page"] .primary-nav__index { color: var(--c-gold); }

/* ---------- 12. 页脚 ---------- */
.site-footer {
  position: relative;
  background: var(--c-black);
  border-top: 1px solid var(--c-line);
  color: var(--c-paper);
}

.footer__stripe {
  height: 6px;
  background: linear-gradient(90deg,
    var(--c-red) 0 22%,
    var(--c-indigo) 22% 62%,
    var(--c-gold) 62% 70%,
    var(--c-carbon) 70% 100%);
}

.footer__top {
  display: grid;
  grid-template-columns: 1.1fr 2.2fr;
  gap: 48px;
  padding-block: 56px 36px;
}

.footer__brand-name {
  font-family: var(--font-head);
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  line-height: 1.1;
}

.footer__brand-line {
  margin-top: 6px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-stand);
}

.footer__closing {
  margin-top: 18px;
  padding-left: 14px;
  border-left: 2px solid var(--c-red);
  color: var(--c-text-soft);
  max-width: 34ch;
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.footer__title {
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-line);
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-stand);
}

.footer__list { display: grid; gap: 8px; }

.footer__link {
  position: relative;
  display: inline-block;
  padding-left: 14px;
  font-size: 15px;
  color: var(--c-text-soft);
  transition: color .18s var(--ease);
}

.footer__link::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 6px;
  height: 2px;
  background: var(--c-red);
  transition: width .18s var(--ease), background-color .18s var(--ease);
}

.footer__link:hover { color: #fff; }
.footer__link:hover::before { width: 10px; background: var(--c-gold); }

.footer__contact {
  padding-block: 28px 8px;
  border-top: 1px dashed var(--c-line);
}

.footer__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 18px;
}

.footer__fact dt {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-stand);
}

.footer__fact dd {
  margin-top: 6px;
  font-size: 15px;
  color: var(--c-paper);
  word-break: break-word;
}

.footer__note {
  margin-top: 18px;
  font-size: 13px;
  color: var(--c-stand);
  max-width: 72ch;
}

.footer__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-top: 20px;
  padding-block: 18px 28px;
  border-top: 1px solid var(--c-line);
}

.footer__legal-list {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer__legal-link {
  font-size: 13px;
  color: var(--c-stand);
  transition: color .18s var(--ease);
}

.footer__legal-link:hover { color: var(--c-gold-light); }

.footer__icp {
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--c-stand);
}

.footer__copyright {
  width: 100%;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--c-stand);
}

/* ---------- 13. 动效协议 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .45s var(--ease), transform .45s var(--ease);
}

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

/* ---------- 14. 响应式 ---------- */
@media (max-width: 1080px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .primary-nav__link { padding: 10px 9px; font-size: 14px; }
}

@media (max-width: 980px) {
  .nav-toggle { display: inline-flex; }

  .primary-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 70;
    display: none;
    margin-left: 0;
    max-height: calc(100vh - 110px);
    overflow-y: auto;
    background: var(--c-carbon);
    border-top: 1px solid var(--c-line);
    border-bottom: 2px solid var(--c-red);
    box-shadow: 0 20px 44px rgba(0, 0, 0, .55);
  }

  .site-header[data-open] .primary-nav { display: block; }

  .primary-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px var(--pad) 16px;
  }

  .primary-nav__item { border-bottom: 1px solid var(--c-line); }
  .primary-nav__item:last-child { border-bottom: 0; }

  .primary-nav__link {
    display: flex;
    padding: 15px 4px;
    font-size: 18px;
  }

  .primary-nav__link::after {
    left: 4px;
    right: auto;
    bottom: 9px;
    width: 30px;
  }

  .footer__top {
    grid-template-columns: 1fr;
    gap: 34px;
    padding-block: 44px 28px;
  }

  .footer__facts { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .grid--2,
  .grid--3 { grid-template-columns: 1fr; }

  .section { padding-block: 72px; }
  .section--tight { padding-block: 40px; }
}

@media (max-width: 820px) {
  .cmd-bar__inner { overflow-x: auto; scrollbar-width: none; }
  .cmd-bar__inner::-webkit-scrollbar { display: none; }
}

@media (max-width: 640px) {
  .cmd-bar__label { display: none; }
  .brand__line { display: none; }
  .footer__grid { grid-template-columns: 1fr; gap: 22px; }
  .footer__facts { grid-template-columns: 1fr; }
  .footer__icp { margin-left: 0; }
  .section { padding-block: 56px; }
}

/* ---------- 15. 无障碍与减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .primary-nav__link:hover::after,
  .primary-nav__link[aria-current="page"]::after { transform: scaleX(1); }
}