/* ==========================================================================
   博万体育 · 中国区站点 共享样式  /assets/site.css
   夜场记分牌：深墨蓝大底 + 荧光青数据 + 亮橙动作 + 洋红版本标记
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 110px;
}
body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, picture, svg, video { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { width: 100%; border-collapse: collapse; }
hr { border: 0; border-top: 1px solid var(--line-soft); margin: 0; }

/* ---------- 2. 变量 ---------- */
:root {
  /* 品牌色 */
  --ink-900: #060B16;
  --ink-800: #0C1730;
  --ink-700: #16264A;
  --paper-100: #F3E9D7;
  --cyan-400: #24E0CE;
  --orange-500: #FF7A2A;
  --magenta-500: #FF3C86;
  --slate-300: #9FB0C9;
  --green-400: #38D97A;
  --white: #FFFFFF;

  /* 语义色 */
  --text: #DCE5F2;
  --text-dim: #9FB0C9;
  --text-strong: #FFFFFF;
  --ink-text: #101B33;
  --line-cyan: rgba(36, 224, 206, .35);
  --line-soft: rgba(159, 176, 201, .18);

  /* 字体 */
  --font-head: "Source Han Sans SC", "Noto Sans SC", "OPPO Sans", "PingFang SC",
    "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
    "Noto Sans SC", system-ui, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo,
    Consolas, monospace;

  /* 尺寸 */
  --shell: 1240px;
  --gutter: clamp(16px, 4vw, 40px);
  --gap: clamp(16px, 2.4vw, 28px);
  --radius: 18px;
  --radius-lg: 26px;
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--ink-900);
  background-image:
    radial-gradient(1150px 560px at 10% -10%, rgba(36, 224, 206, .10), transparent 62%),
    radial-gradient(980px 520px at 92% 2%, rgba(255, 122, 42, .09), transparent 60%);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text-strong);
}
h1 { font-size: clamp(32px, 5vw, 52px); }
h2 { font-size: clamp(26px, 3.4vw, 40px); }
h3 { font-size: clamp(20px, 2.2vw, 24px); }
h4 { font-size: 18px; }

strong, b { font-weight: 800; color: var(--text-strong); }
small { font-size: 13px; }

a { transition: color .15s ease, background-color .15s ease, border-color .15s ease; }

:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 3px;
  border-radius: 8px;
}

#main-content { display: block; scroll-margin-top: 110px; }

.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;
}

/* ---------- 4. 跳链 ---------- */
.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -70px;
  z-index: 200;
  padding: 12px 20px;
  border-radius: 0 0 14px 14px;
  background: var(--cyan-400);
  color: var(--ink-900);
  font-size: 14px;
  font-weight: 900;
  transition: top .16s ease;
}
.skip-link:focus { top: 0; }

/* ---------- 5. 悬浮胶囊导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  padding: 12px var(--gutter) 0;
  background: linear-gradient(180deg,
    rgba(6, 11, 22, .97) 0%,
    rgba(6, 11, 22, .74) 62%,
    rgba(6, 11, 22, 0) 100%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.nav-capsule {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 22px);
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 8px 10px 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(36, 224, 206, .22);
  background: rgba(12, 23, 48, .74);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  box-shadow: 0 22px 44px -28px rgba(0, 0, 0, .95),
              inset 0 1px 0 rgba(255, 255, 255, .05);
  transition: max-width .18s ease, padding .18s ease,
              background-color .18s ease, box-shadow .18s ease;
}
.site-header.is-condensed .nav-capsule {
  max-width: 1000px;
  padding: 5px 8px 5px 12px;
  background: rgba(12, 23, 48, .92);
  box-shadow: 0 26px 52px -30px rgba(0, 0, 0, 1),
              0 0 0 1px rgba(36, 224, 206, .10);
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding: 3px 6px 3px 3px;
  border-radius: 14px;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: var(--orange-500);
  color: #08101F;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 900;
  letter-spacing: -0.04em;
  transform: skewX(-6deg);
  box-shadow: 0 10px 24px -14px rgba(255, 122, 42, .95);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.06; }
.brand-name {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 900;
  color: var(--text-strong);
  letter-spacing: -0.01em;
}
.brand-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: .14em;
  color: var(--cyan-400);
}
.brand--footer .brand-name { font-size: 19px; }
.brand--footer .brand-sub { font-size: 11px; }

/* 栏目 */
.nav-capsule__nav {
  display: flex;
  flex: 1 1 auto;
  justify-content: center;
  min-width: 0;
}
.nav-list { display: flex; align-items: center; gap: 2px; }
.nav-link {
  display: inline-block;
  padding: 9px 13px;
  border-radius: 999px;
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 800;
  color: var(--text-dim);
  white-space: nowrap;
}
.nav-link:hover { color: var(--text-strong); background: rgba(36, 224, 206, .10); }
.nav-link[aria-current="page"] {
  color: #0A1020;
  background: var(--orange-500);
  font-weight: 900;
  box-shadow: 0 12px 26px -16px rgba(255, 122, 42, .95);
}

/* 工具区 */
.nav-capsule__tools {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  flex: 0 0 auto;
}
.version-chip {
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 60, 134, .42);
  background: rgba(255, 60, 134, .08);
  color: var(--magenta-500);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .02em;
  white-space: nowrap;
}
.simp-link {
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid rgba(36, 224, 206, .38);
  background: rgba(36, 224, 206, .07);
  color: var(--cyan-400);
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
}
.simp-link:hover { background: var(--cyan-400); color: var(--ink-900); }

/* 移动端按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 7px;
  padding: 8px 13px;
  border-radius: 999px;
  border: 1px solid rgba(36, 224, 206, .38);
  background: rgba(36, 224, 206, .08);
  color: var(--text-strong);
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 800;
}
.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}
.nav-toggle__bars::before { top: -5px; }
.nav-toggle__bars::after { top: 5px; }
.nav-toggle[aria-expanded="true"] {
  background: var(--orange-500);
  border-color: var(--orange-500);
  color: #0A1020;
}

/* 阅读进度 */
.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: rgba(36, 224, 206, .12);
  overflow: hidden;
}
.scroll-progress__bar {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg,
    var(--cyan-400) 0%, var(--orange-500) 68%, var(--magenta-500) 100%);
  box-shadow: 0 0 12px rgba(36, 224, 206, .8);
  transition: width .12s linear;
}

/* ---------- 6. 布局容器 ---------- */
.container {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.grid { display: grid; gap: var(--gap); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.grid--bento { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.span-3 { grid-column: span 3; }
.span-4 { grid-column: span 4; }
.span-6 { grid-column: span 6; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: span 12; }

.section { padding-block: clamp(40px, 6vw, 88px); }
.rule-cyan {
  height: 1px;
  border: 0;
  background: var(--line-cyan);
  opacity: .6;
}

/* ---------- 7. 区块标题组 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan-400);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--cyan-400);
  opacity: .75;
}
.section-head { margin: 0 0 clamp(20px, 3vw, 34px); }
.section-head h2 { margin: .32em 0 0; }
.section-head p {
  margin: .7em 0 0;
  max-width: 62ch;
  color: var(--text-dim);
  font-size: 16px;
}

/* ---------- 8. 面板 / 卡片 ---------- */
.panel {
  position: relative;
  padding: clamp(16px, 2.2vw, 26px);
  border-radius: var(--radius);
  border: 1px solid rgba(36, 224, 206, .16);
  background: var(--ink-700);
  overflow: hidden;
}
.panel--glass {
  background: rgba(22, 38, 74, .58);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-color: rgba(36, 224, 206, .26);
}
.panel--accent {
  border-left: 3px solid var(--orange-500);
}
.panel__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 900;
  color: var(--text-strong);
  letter-spacing: -0.02em;
}
.panel__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
}

/* ---------- 9. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 900;
  letter-spacing: -0.01em;
  text-align: center;
  transition: transform .14s ease, background-color .14s ease,
              color .14s ease, box-shadow .14s ease, border-color .14s ease;
}
.btn--primary {
  background: var(--orange-500);
  color: #0A1020;
  box-shadow: 0 16px 32px -18px rgba(255, 122, 42, .95);
}
.btn--primary:hover { transform: translateY(-2px); background: #FF8C45; }
.btn--ghost {
  background: transparent;
  color: var(--cyan-400);
  border-color: rgba(36, 224, 206, .45);
}
.btn--ghost:hover { background: rgba(36, 224, 206, .14); color: var(--text-strong); }
.btn--quiet {
  background: rgba(159, 176, 201, .12);
  color: var(--text);
  border-color: var(--line-soft);
}
.btn--quiet:hover { background: rgba(159, 176, 201, .2); color: var(--text-strong); }

/* ---------- 10. 标签 ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: 999px;
  border: 1px solid rgba(159, 176, 201, .3);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--text-dim);
  white-space: nowrap;
}
.chip--cyan { color: var(--cyan-400); border-color: rgba(36, 224, 206, .42); background: rgba(36, 224, 206, .08); }
.chip--orange { color: var(--orange-500); border-color: rgba(255, 122, 42, .42); background: rgba(255, 122, 42, .08); }
.chip--magenta { color: var(--magenta-500); border-color: rgba(255, 60, 134, .42); background: rgba(255, 60, 134, .08); }
.chip--green { color: var(--green-400); border-color: rgba(56, 217, 122, .42); background: rgba(56, 217, 122, .08); }

/* ---------- 11. 数据数字 ---------- */
.data-num {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--cyan-400);
  font-variant-numeric: tabular-nums;
}
.data-num--hot { color: var(--orange-500); }
.data-num--dim { color: var(--text-dim); font-weight: 400; }

/* ---------- 12. 面包屑 ---------- */
.breadcrumbs {
  padding-block: 8px 0;
  font-size: 13px;
  color: var(--text-dim);
}
.breadcrumbs ol { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.breadcrumbs li { display: flex; align-items: center; gap: 8px; }
.breadcrumbs li + li::before {
  content: "/";
  color: rgba(159, 176, 201, .45);
}
.breadcrumbs a { color: var(--text-dim); }
.breadcrumbs a:hover { color: var(--cyan-400); }
.breadcrumbs [aria-current="page"] { color: var(--cyan-400); font-weight: 700; }

/* ---------- 13. 正文 ---------- */
.prose { font-size: 17px; line-height: 1.75; color: var(--text); }
.prose > * + * { margin-top: 1.05em; }
.prose h2 { font-size: clamp(22px, 2.4vw, 28px); margin-top: 1.7em; }
.prose h3 { font-size: clamp(18px, 2vw, 21px); margin-top: 1.5em; }
.prose p { max-width: 720px; }
.prose ul, .prose ol { max-width: 720px; }
.prose ul li { position: relative; padding-left: 22px; margin-top: .55em; }
.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 9px;
  height: 2px;
  background: var(--cyan-400);
}
.prose ol { counter-reset: item; }
.prose ol li { position: relative; padding-left: 30px; margin-top: .55em; }
.prose ol li::before {
  counter-increment: item;
  content: counter(item, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan-400);
}
.prose a {
  color: var(--cyan-400);
  border-bottom: 1px solid rgba(36, 224, 206, .4);
}
.prose a:hover { color: var(--text-strong); border-bottom-color: var(--text-strong); }
.prose code {
  font-family: var(--font-mono);
  font-size: .92em;
  padding: 2px 6px;
  border-radius: 6px;
  background: rgba(36, 224, 206, .1);
  color: var(--cyan-400);
}

/* 奶油纸连续阅读层 */
.reading-layer {
  padding: clamp(22px, 3.4vw, 44px);
  border-radius: var(--radius);
  background: var(--paper-100);
  color: var(--ink-text);
  box-shadow: 0 30px 60px -40px rgba(0, 0, 0, .9);
}
.reading-layer h2,
.reading-layer h3,
.reading-layer h4,
.reading-layer strong { color: #0E1A31; }
.reading-layer .prose { color: #1B2A47; }
.reading-layer .prose > * { max-width: 720px; }
.reading-layer .prose ul li::before { background: #C0562A; }
.reading-layer .prose a { color: #A8341C; border-bottom-color: rgba(168, 52, 28, .45); }
.reading-layer .prose code { background: rgba(16, 27, 51, .08); color: #0E1A31; }
.reading-layer .data-num { color: #0C5F58; }

/* ---------- 14. 图片容器 ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius);
  border: 1px solid rgba(36, 224, 206, .16);
  background: var(--ink-700);
}
.media-frame > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 16px 18px 14px;
  font-size: 13px;
  line-height: 1.5;
  color: #E7EEF9;
  background: linear-gradient(180deg, rgba(6, 11, 22, 0) 0%, rgba(6, 11, 22, .88) 100%);
}
.media-frame__tag {
  position: absolute;
  top: 12px;
  left: 12px;
}
.media-placeholder::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    -45deg,
    rgba(36, 224, 206, .07) 0 10px,
    rgba(36, 224, 206, 0) 10px 20px
  );
  pointer-events: none;
}

/* ---------- 15. 页面级交互钩子 ---------- */
[data-spy-link] {
  transition: color .15s ease, border-color .15s ease, background-color .15s ease;
}
[data-spy-link][aria-current="true"],
[data-spy-link].is-active {
  color: var(--cyan-400);
  border-color: var(--cyan-400);
}

[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .36s ease, transform .36s ease;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 16. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 110px);
  background: var(--ink-800);
  border-top: 1px solid rgba(36, 224, 206, .16);
  font-size: 15px;
  color: var(--text-dim);
}
.site-footer__rule {
  height: 3px;
  background: linear-gradient(90deg,
    var(--cyan-400) 0%, var(--orange-500) 52%, var(--magenta-500) 100%);
  transform: skewY(-.5deg);
  transform-origin: left center;
}
.footer-inner {
  display: grid;
  grid-template-columns: minmax(260px, 1.35fr) minmax(0, 2fr);
  gap: clamp(28px, 5vw, 72px);
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(36px, 5vw, 64px) var(--gutter) 30px;
}
.footer-brand .brand { padding-left: 0; }
.footer-tagline {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--cyan-400);
}
.footer-note {
  margin-top: 10px;
  max-width: 36ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}
.footer-contact {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.95;
  color: var(--text-dim);
}
.footer-contact__value {
  font-family: var(--font-mono);
  color: var(--text-strong);
  letter-spacing: .01em;
}
.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: clamp(18px, 3vw, 36px);
}
.footer-col__title {
  position: relative;
  margin-bottom: 16px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .16em;
  color: var(--text-strong);
}
.footer-col__title::after {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  margin-top: 9px;
  background: var(--orange-500);
}
.footer-list { display: flex; flex-direction: column; gap: 10px; }
.footer-list a {
  font-size: 15px;
  color: var(--text-dim);
  border-bottom: 1px solid transparent;
}
.footer-list a:hover { color: var(--cyan-400); border-bottom-color: rgba(36, 224, 206, .45); }
.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 26px;
  justify-content: space-between;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 18px var(--gutter) 34px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  color: var(--text-dim);
}
.footer-base p { margin: 0; }
.footer-icp,
.footer-hours { font-family: var(--font-mono); letter-spacing: .02em; }

/* ---------- 17. 响应式 ---------- */
@media (max-width: 1120px) {
  .nav-link { padding: 8px 10px; font-size: 14px; }
}
@media (max-width: 1020px) {
  .simp-link { display: none; }
}
@media (max-width: 980px) {
  .site-header { padding: 10px var(--gutter) 0; }
  .nav-capsule {
    flex-wrap: wrap;
    border-radius: 24px;
    padding: 8px 10px;
  }
  .site-header.is-condensed .nav-capsule {
    max-width: 100%;
    padding: 8px 10px;
  }
  .nav-capsule__nav {
    display: none;
    flex: 1 0 100%;
    order: 9;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--line-soft);
  }
  .site-header[data-open] .nav-capsule__nav { display: flex; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 4px; width: 100%; }
  .nav-link { display: block; padding: 12px 14px; border-radius: 14px; font-size: 16px; }
  .nav-toggle { display: inline-flex; }
  .site-header .brand-sub { display: none; }
  .grid--3, .grid--bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .span-3, .span-4, .span-6, .span-8 { grid-column: span 6; }
  .footer-inner { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .grid--2, .grid--3, .grid--bento { grid-template-columns: minmax(0, 1fr); }
  .span-3, .span-4, .span-6, .span-8, .span-12 { grid-column: span 12; }
  .footer-cols { grid-template-columns: repeat(2, minmax(120px, 1fr)); }
  .footer-base { flex-direction: column; align-items: flex-start; }
  .version-chip { font-size: 10px; padding: 4px 8px; }
}
@media (max-width: 420px) {
  .footer-cols { grid-template-columns: minmax(0, 1fr); }
  .brand-name { font-size: 15px; }
}

/* ---------- 18. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .scroll-progress__bar { transition: none; }
}