/* ============================================================
   /assets/site.css — 华体会皇马 · 中文赛事专区共享层
   蓝图网格 / 左右分置导航 / 三层页脚 / 通用组件
   ============================================================ */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, ul, ol, li, figure, blockquote, dl, dd, address { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
i, em { font-style: normal; }
h1, h2, h3, h4 { font-weight: 800; line-height: 1.16; letter-spacing: 0.09em; }

/* ---------- Tokens ---------- */
:root {
  --white: #FFFFFF;
  --mist: #F2F5F9;
  --navy: #0A1A33;
  --navy-2: #102A4C;
  --line: #1D3E6B;
  --gold: #E3B24B;
  --gold-2: #F6D68A;
  --cyan: #27DCD2;
  --live: #FF4B2B;
  --timer: #FF8A3D;
  --slate: #64748B;
  --ink: #0E1B2A;

  --line-soft: rgba(29, 62, 107, 0.18);
  --line-soft-2: rgba(29, 62, 107, 0.10);
  --line-on-dark: rgba(255, 255, 255, 0.14);
  --glass: rgba(16, 42, 76, 0.72);

  --font-sans: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-num: "Barlow Condensed", "DIN Condensed", "Roboto Condensed", "Arial Narrow", "Helvetica Neue", system-ui, sans-serif;
  --font-serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", Georgia, serif;

  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 16px;
  --sp-4: 24px;
  --sp-5: 40px;
  --sp-6: 72px;

  --rail: 56px;
  --radius: 2px;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --shell: min(1240px, 100% - 40px);
}

/* ---------- Base ---------- */
body {
  background: var(--white);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
}
h1 { font-size: clamp(34px, 5vw, 64px); letter-spacing: 0.1em; }
h2 { font-size: clamp(24px, 3vw, 32px); letter-spacing: 0.1em; }
h3 { font-size: 18px; letter-spacing: 0.08em; }
p { max-width: 68ch; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 1px;
}

#main-content { scroll-margin-top: 128px; }

.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;
}

/* ---------- 布局工具 ---------- */
.wrap { width: var(--shell); margin-inline: auto; }

.section { padding-block: var(--sp-6); position: relative; }
.section--tight { padding-block: var(--sp-5); }
.section--dark { background: var(--navy); color: var(--mist); }
.section--dark p { color: rgba(242, 245, 249, 0.82); }
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--white); }

.blueprint-grid {
  background-image:
    linear-gradient(var(--line-soft-2) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft-2) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: -1px -1px;
}

.section-head {
  display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px 20px;
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: var(--sp-3);
  margin-bottom: var(--sp-5);
}
.section--dark .section-head { border-bottom-color: var(--line-on-dark); }

.eyebrow {
  font-family: var(--font-sans);
  font-size: 13px; font-weight: 700;
  letter-spacing: 0.24em;
  color: var(--cyan);
  text-transform: uppercase;
}
.index-num {
  font-family: var(--font-num);
  font-size: 15px; font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.rail { position: relative; padding-left: var(--rail); }
.rail::before {
  content: attr(data-index);
  position: absolute; left: 0; top: 4px;
  font-family: var(--font-num);
  font-size: 13px; font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.split { display: grid; grid-template-columns: 7fr 5fr; gap: var(--sp-5); align-items: start; }
.split--wide { grid-template-columns: 8fr 4fr; }

.grid { display: grid; gap: var(--sp-4); }
.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)); }

/* ---------- 图片容器基础规则 ---------- */
.media {
  position: relative;
  overflow: hidden;
  background: var(--navy-2);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}
.media > img, .media > svg { width: 100%; height: 100%; object-fit: cover; }
.media::after {
  content: ""; position: absolute; inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  pointer-events: none;
}
.media--wide { aspect-ratio: 16 / 9; }
.media--square { aspect-ratio: 1 / 1; }
.media--tall { aspect-ratio: 4 / 5; }
.media-caption { margin-top: var(--sp-2); font-size: 14px; line-height: 1.6; color: var(--slate); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 26px;
  font-size: 15px; font-weight: 700; letter-spacing: 0.08em;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: background-color .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn--gold { background: var(--gold); border-color: var(--gold); color: var(--navy); }
.btn--gold:hover { background: var(--gold-2); border-color: var(--gold-2); }
.btn--dark { background: var(--navy); border-color: var(--navy); color: var(--mist); }
.btn--dark:hover { background: var(--navy-2); border-color: var(--line); }
.btn--ghost { background: transparent; border-color: rgba(255, 255, 255, 0.34); color: var(--mist); }
.btn--ghost:hover { border-color: var(--cyan); color: var(--cyan); }

/* ---------- 卡片 / 标签 ---------- */
.card {
  background: var(--white);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: var(--sp-4);
}
.card--glass {
  background: var(--glass);
  border-color: var(--line-on-dark);
  color: var(--mist);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.card--glass h3 { color: var(--white); }

.tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 3px 10px;
  font-size: 13px; font-weight: 700; letter-spacing: 0.1em;
  border: 1px solid currentColor;
  border-radius: 999px;
}
.tag--live { color: var(--live); }
.tag--gold { color: var(--gold); }
.tag--cyan { color: var(--cyan); }

/* ---------- 面包屑 / 正文 / 引文 ---------- */
.breadcrumbs {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  font-size: 14px; letter-spacing: 0.04em; color: var(--slate);
}
.breadcrumbs a { color: var(--slate); border-bottom: 1px solid transparent; }
.breadcrumbs a:hover { color: var(--navy); border-bottom-color: var(--line-soft); }
.crumb-sep { opacity: 0.5; }

.prose { max-width: 68ch; font-size: 17px; line-height: 1.78; color: var(--ink); }
.prose p + p { margin-top: 1.05em; }
.prose h2 { margin-top: 1.9em; margin-bottom: 0.6em; font-size: 24px; }
.prose h3 { margin-top: 1.6em; margin-bottom: 0.5em; color: var(--navy-2); }
.prose ul, .prose ol { margin: 1em 0; padding-left: 1.2em; list-style: disc; }
.prose li + li { margin-top: 0.45em; }

.quote {
  font-family: var(--font-serif);
  font-size: 19px; line-height: 1.72;
  color: var(--navy-2);
  border-left: 3px solid var(--gold);
  padding: 4px 0 4px 20px;
  margin: var(--sp-4) 0;
}
.quote cite { display: block; margin-top: 10px; font-size: 14px; font-style: normal; color: var(--slate); }

/* ---------- 数据 ---------- */
.stat { display: grid; gap: 4px; }
.stat-value {
  font-family: var(--font-num);
  font-size: 44px; font-weight: 700; line-height: 1;
  letter-spacing: 0.02em;
  color: var(--navy);
  font-variant-numeric: tabular-nums;
}
.stat-label { font-size: 14px; letter-spacing: 0.12em; color: var(--slate); }
.num {
  font-family: var(--font-num);
  font-weight: 700;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}

/* ---------- 章节索引（配合滚动高亮） ---------- */
.doc-section { scroll-margin-top: 132px; }
.section-index { display: grid; gap: 2px; font-size: 14px; }
.section-index a {
  display: flex; align-items: baseline; gap: 10px;
  padding: 7px 0 7px 10px;
  color: var(--slate);
  border-left: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.section-index a:hover { color: var(--navy); }
.section-index a.is-current { color: var(--navy); font-weight: 700; border-left-color: var(--gold); }
.section--dark .section-index a { color: rgba(242, 245, 249, 0.6); }
.section--dark .section-index a.is-current { color: var(--gold-2); }

/* ---------- 显现动画 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .24s var(--ease), transform .24s var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- Skip link ---------- */
.skip-link {
  position: fixed; left: 16px; top: -80px; z-index: 300;
  padding: 12px 20px;
  background: var(--gold); color: var(--navy);
  font-weight: 700; letter-spacing: 0.08em;
  border-radius: var(--radius);
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 12px; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--navy);
  color: var(--mist);
  border-bottom: 1px solid var(--line);
}

.read-progress {
  position: absolute; left: 0; right: 0; top: 0;
  height: 2px;
  background: rgba(255, 255, 255, 0.08);
  pointer-events: none;
}
.read-progress-bar {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--cyan), var(--gold));
  transition: width .1s linear;
}

.header-main { padding-block: 10px; }

.header-inner {
  width: var(--shell);
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 56px;
}

.brand { display: flex; align-items: center; gap: 14px; flex: none; }
.brand-mark {
  position: relative;
  width: 38px; height: 38px; flex: none;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, var(--navy-2), rgba(16, 42, 76, 0));
  display: grid; place-items: center;
}
.brand-mark::before {
  content: ""; position: absolute; inset: 6px;
  border: 1px solid var(--gold); opacity: 0.72;
}
.brand-mark::after {
  content: ""; width: 8px; height: 8px;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(39, 220, 210, 0.16);
}
.brand-text { display: block; }
.brand-name {
  display: block;
  font-size: 19px; font-weight: 800; line-height: 1.1;
  letter-spacing: 0.14em; color: var(--white);
}
.brand-x { color: var(--gold); padding-inline: 3px; }
.brand-sub {
  display: block; margin-top: 5px;
  font-size: 12px; letter-spacing: 0.2em;
  color: rgba(242, 245, 249, 0.58);
}

/* 导航 */
.site-nav { margin-left: auto; }
.nav-list { display: flex; align-items: center; gap: 2px; }
.nav-item { flex: none; }
.nav-link {
  display: inline-block;
  padding: 10px 14px;
  font-size: 15px; letter-spacing: 0.1em;
  color: rgba(242, 245, 249, 0.76);
  border-bottom: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.nav-link:hover, .nav-link:focus-visible { color: var(--white); border-bottom-color: var(--cyan); }
.nav-link[aria-current="page"] { color: var(--gold); border-bottom-color: var(--gold); }

/* 工具区 */
.header-utils {
  display: flex; align-items: center; gap: 10px;
  padding-left: 18px;
  border-left: 1px solid var(--line-on-dark);
  flex: none;
}
.util-link {
  font-size: 14px; letter-spacing: 0.08em;
  padding: 8px 10px;
  color: rgba(242, 245, 249, 0.78);
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}
.util-link:hover { color: var(--white); border-color: var(--line-on-dark); }
.util-link--gold {
  background: var(--gold); color: var(--navy);
  font-weight: 700; padding: 9px 16px;
  border-color: var(--gold);
}
.util-link--gold:hover { background: var(--gold-2); border-color: var(--gold-2); color: var(--navy); }

.util-index {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 10px;
  font-size: 14px; letter-spacing: 0.08em;
  color: rgba(242, 245, 249, 0.78);
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.util-index:hover { color: var(--cyan); border-color: var(--line-on-dark); }
.util-index[aria-expanded="true"] { color: var(--cyan); border-color: var(--cyan); }
.util-index-bars { display: inline-grid; gap: 3px; width: 14px; }
.util-index-bars i { display: block; height: 1px; background: currentColor; }
.util-index-bars i:nth-child(2) { width: 70%; }
.util-index-bars i:nth-child(3) { width: 45%; }

/* 汉堡 */
.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  align-items: center; justify-content: center;
  flex-direction: column; gap: 5px;
  border: 1px solid var(--line-on-dark);
  border-radius: var(--radius);
}
.nav-toggle:hover { border-color: var(--cyan); }
.nav-toggle-bar {
  display: block; width: 18px; height: 2px;
  background: var(--mist);
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}

/* 站内索引面板 */
.index-panel { background: var(--navy-2); border-top: 1px solid var(--line-on-dark); }
.index-panel[hidden] { display: none; }
.index-panel-inner { width: var(--shell); margin-inline: auto; padding: 24px 0 30px; }
.index-panel-title {
  font-size: 12px; font-weight: 700; letter-spacing: 0.24em;
  color: var(--cyan); margin-bottom: 14px;
}
.index-panel-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 4px 24px;
}
.index-panel-list a {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  padding: 9px 0;
  font-size: 15px;
  color: rgba(242, 245, 249, 0.84);
  border-bottom: 1px solid var(--line-on-dark);
  transition: color .2s var(--ease);
}
.index-panel-list a:hover, .index-panel-list a:focus-visible { color: var(--gold); }
.index-panel-code {
  font-family: var(--font-num);
  font-size: 13px; font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--slate);
}

/* 直播状态带 */
.live-band {
  display: block;
  background: var(--navy-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--mist);
}
.live-band-inner {
  width: var(--shell); margin-inline: auto;
  display: flex; align-items: center; gap: 14px;
  min-height: 40px;
  font-size: 14px; letter-spacing: 0.06em;
}
.live-pulse {
  width: 8px; height: 8px; flex: none;
  border-radius: 50%;
  background: var(--live);
  box-shadow: 0 0 0 0 rgba(255, 75, 43, 0.5);
  animation: livePulse 2.4s infinite;
}
@keyframes livePulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 75, 43, 0.5); }
  70% { box-shadow: 0 0 0 10px rgba(255, 75, 43, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 75, 43, 0); }
}
.live-label {
  flex: none;
  font-size: 12px; font-weight: 700; letter-spacing: 0.18em;
  color: var(--live);
  border: 1px solid rgba(255, 75, 43, 0.5);
  border-radius: var(--radius);
  padding: 1px 8px;
}
.live-match { font-weight: 700; color: var(--white); }
.live-time { color: var(--timer); letter-spacing: 0.1em; }
.live-cta { margin-left: auto; color: var(--gold); letter-spacing: 0.1em; flex: none; }
.live-band:hover .live-cta { color: var(--gold-2); }
.live-band:hover .live-match { color: var(--gold-2); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--navy);
  color: var(--mist);
  position: relative;
  border-top: 1px solid var(--line);
}
.footer-top {
  width: var(--shell); margin-inline: auto;
  padding: 56px 0 40px;
  display: grid;
  grid-template-columns: 1.05fr 2fr;
  gap: 48px;
}
.footer-brand { min-width: 0; }
.footer-wordmark {
  font-size: 22px; font-weight: 800; letter-spacing: 0.16em;
  color: var(--white); max-width: none;
}
.footer-tagline {
  margin-top: 12px;
  font-size: 14px; line-height: 1.8;
  color: rgba(242, 245, 249, 0.6);
  max-width: 30ch;
}
.footer-coord {
  margin-top: 18px;
  font-family: var(--font-num);
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--slate);
}
.footer-service {
  margin-top: 24px;
  padding: 16px 18px;
  border: 1px solid var(--line-on-dark);
  border-radius: var(--radius);
  background: rgba(16, 42, 76, 0.55);
}
.footer-service-title {
  font-size: 12px; font-weight: 700; letter-spacing: 0.2em;
  color: var(--cyan); margin-bottom: 8px;
}
.footer-service-line {
  font-size: 14px; line-height: 1.8;
  color: rgba(242, 245, 249, 0.68);
  max-width: none;
}
.footer-cols {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px 24px;
}
.footer-col { min-width: 0; }
.footer-col-title {
  font-size: 13px; font-weight: 700; letter-spacing: 0.2em;
  color: var(--gold);
  padding-bottom: 8px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--line-on-dark);
}
.footer-list { display: grid; gap: 10px; }
.footer-link {
  font-size: 14px; letter-spacing: 0.04em;
  color: rgba(242, 245, 249, 0.72);
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.footer-link:hover, .footer-link:focus-visible { color: var(--cyan); border-bottom-color: rgba(39, 220, 210, 0.4); }

.footer-contact { border-top: 1px solid var(--line-on-dark); background: rgba(255, 255, 255, 0.02); }
.contact-inner {
  width: var(--shell); margin-inline: auto;
  padding: 22px 0;
  display: flex; flex-wrap: wrap; gap: 10px 40px;
}
.contact-line {
  display: flex; align-items: baseline; gap: 10px;
  font-size: 14px; line-height: 1.7;
  color: rgba(242, 245, 249, 0.78);
  max-width: none;
}
.contact-key {
  flex: none; min-width: 42px;
  font-size: 12px; font-weight: 700; letter-spacing: 0.14em;
  color: var(--slate);
}
.contact-val { word-break: break-word; }

.footer-legal { border-top: 1px solid var(--line-on-dark); background: rgba(0, 0, 0, 0.18); }
.legal-inner {
  width: var(--shell); margin-inline: auto;
  padding: 18px 0;
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 10px 28px;
  font-size: 13px; letter-spacing: 0.02em;
  color: rgba(242, 245, 249, 0.58);
}
.legal-icp { color: var(--mist); letter-spacing: 0.06em; }
.legal-note { flex: 1 1 300px; max-width: none; }
.legal-links { display: flex; flex-wrap: wrap; gap: 18px; margin-left: auto; }
.legal-links a {
  color: rgba(242, 245, 249, 0.74);
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.legal-links a:hover, .legal-links a:focus-visible { color: var(--gold); border-bottom-color: var(--gold); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1180px) {
  .util-link--quiet { display: none; }
  .nav-link { padding: 10px 10px; letter-spacing: 0.06em; }
  .index-panel-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 1024px) {
  .split, .split--wide { grid-template-columns: 1fr; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-top { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 960px) {
  .header-inner { flex-wrap: wrap; gap: 10px; }
  .site-nav {
    display: none;
    order: 3;
    width: 100%;
    margin-left: 0;
    background: var(--navy);
    border-top: 1px solid var(--line-on-dark);
    margin-top: 6px;
  }
  .site-nav[data-open] { display: block; }
  .nav-list { display: block; }
  .nav-item { display: block; }
  .nav-link {
    display: block;
    padding: 14px 12px;
    border-bottom: 1px solid var(--line-on-dark);
    border-left: 2px solid transparent;
  }
  .nav-link:hover, .nav-link:focus-visible { border-bottom-color: var(--line-on-dark); border-left-color: var(--cyan); }
  .nav-link[aria-current="page"] { border-bottom-color: var(--line-on-dark); border-left-color: var(--gold); }
  .header-utils { margin-left: auto; padding-left: 0; border-left: 0; }
  .util-index { display: none; }
  .nav-toggle { display: flex; }
  .site-header[data-open] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .site-header[data-open] .nav-toggle-bar:nth-child(2) { opacity: 0; }
  .site-header[data-open] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .index-panel-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .live-cta { display: none; }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .legal-links { margin-left: 0; }
  #main-content { scroll-margin-top: 116px; }
}

@media (max-width: 720px) {
  :root { --sp-6: 48px; --sp-5: 32px; }
  body { font-size: 16px; }
  .rail { padding-left: 0; }
  .rail::before { position: static; display: block; margin-bottom: 8px; }
  .brand-sub { display: none; }
  .brand-name { font-size: 17px; }
  .brand-mark { width: 34px; height: 34px; }
  .live-band-inner { flex-wrap: wrap; gap: 8px 10px; padding-block: 8px; min-height: 0; }
  .live-match { flex: 1 1 100%; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: 1fr; }
  .footer-top { padding: 40px 0 28px; }
  .stat-value { font-size: 36px; }
  .legal-inner { font-size: 12px; }
}

@media (max-width: 420px) {
  .util-link--gold { padding: 8px 12px; font-size: 13px; }
  .brand { gap: 10px; }
}

/* ---------- 减少动效 ---------- */
@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-reveal] { opacity: 1; transform: none; }
  .live-pulse { animation: none; box-shadow: 0 0 0 3px rgba(255, 75, 43, 0.18); }
  .btn:hover { transform: none; }
}