/* ==========================================================================
   完美体育赛场 · 共享站点样式 /assets/site.css
   深夜体育数据指挥中心：玻璃层 + 实色内容层 + 等宽数据语言
   ========================================================================== */

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

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

body { margin: 0; }

h1, h2, h3, h4, h5, p, figure, blockquote, dl, dd { margin: 0; }

ul, ol { margin: 0; padding: 0; list-style: none; }

img, svg, video, canvas { display: block; max-width: 100%; }

button, input, select, textarea { font: inherit; color: inherit; }

table { border-collapse: collapse; width: 100%; }

a { color: inherit; }

/* ---------- 2. 变量 ---------- */
:root {
  --ink-900: #0A1030;
  --ink-800: #16204A;
  --ink-750: #1D2A5C;
  --ink-700: #101940;
  --ink-deep: #070C26;
  --cyan: #35E0C8;
  --green: #23D07A;
  --orange: #FF7A29;
  --orange-soft: #FF8C46;
  --red: #FF4D62;
  --paper: #E9EEF8;
  --muted: #8C97B8;
  --dark-row: #07251E;
  --read: #F4F7FF;
  --read-ink: #1A2456;
  --read-muted: #4A5680;

  --font-display: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: system-ui, -apple-system, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-serif: "Noto Serif SC", "Songti SC", Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, "JetBrains Mono", "Roboto Mono", SFMono-Regular, Menlo, Consolas, monospace;

  --shell: 1360px;
  --rail: 284px;
  --head-offset: 108px;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 20px 52px -30px rgba(0, 0, 0, .95);
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 3. 基础与背景信号层 ---------- */
body {
  position: relative;
  min-height: 100vh;
  background-color: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: .005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(760px 480px at 92% -10%, rgba(53, 224, 200, .11), transparent 64%),
    radial-gradient(620px 420px at -6% 16%, rgba(255, 122, 41, .075), transparent 62%),
    radial-gradient(520px 380px at 50% 108%, rgba(35, 208, 122, .07), transparent 68%),
    repeating-linear-gradient(0deg, rgba(233, 238, 248, .035) 0 1px, transparent 1px 4px);
}

.site-main,
.masthead,
.site-foot {
  position: relative;
  z-index: 1;
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection {
  background: rgba(53, 224, 200, .32);
  color: #fff;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 300;
  transform: translateY(-180%);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  background: var(--cyan);
  color: var(--ink-900);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: transform .18s var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible { transform: translateY(0); }

/* ---------- 4. 排版层级 ---------- */
.t-h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 5.6vw, 64px);
  line-height: 1.06;
  letter-spacing: -.02em;
}
.t-h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.2vw, 40px);
  line-height: 1.16;
  letter-spacing: -.02em;
}
.t-h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.32;
  letter-spacing: -.01em;
}
.t-body { font-size: 16px; line-height: 1.75; }
.t-small { font-size: 13.5px; line-height: 1.7; color: var(--muted); }
.serif { font-family: var(--font-serif); }
.lede {
  font-family: var(--font-serif);
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.82;
  color: rgba(233, 238, 248, .86);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  letter-spacing: -.01em;
}
.num--xl {
  font-size: clamp(44px, 7vw, 96px);
  font-weight: 700;
  line-height: .92;
}

.plate { display: flex; align-items: baseline; gap: 12px; }
.plate__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--orange);
}

.up { color: var(--green); }
.down { color: var(--red); }
.flat { color: var(--muted); }

/* ---------- 5. 容器与网格 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: clamp(16px, 3.4vw, 40px);
}

.band {
  position: relative;
  padding-block: clamp(48px, 7vw, 96px);
}
.band--tight { padding-block: clamp(26px, 4vw, 48px); }
.band--muted {
  background: linear-gradient(180deg, rgba(22, 32, 74, .58), rgba(10, 16, 48, 0));
}
.band--read {
  background: var(--read);
  color: var(--read-ink);
}
.band--read .lede { color: var(--read-ink); }
.band--read .t-small { color: var(--read-muted); }
.band--read a { color: #0F2F6B; }
.band--read .eyebrow { color: #0E7F72; }

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
}
.rail { min-width: 0; }

@media (min-width: 1024px) {
  .layout--rail { grid-template-columns: var(--rail) minmax(0, 1fr); gap: clamp(28px, 3.4vw, 52px); }
  .layout--rail-right { grid-template-columns: minmax(0, 1fr) var(--rail); gap: clamp(28px, 3.4vw, 52px); }
  .rail--sticky { position: sticky; top: var(--head-offset); align-self: start; }
}

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2vw, 24px);
}
@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 640px) and (max-width: 959px) {
  .grid--3,
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 960px) {
  .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.stack > * + * { margin-top: var(--stack-gap, 18px); }
.stack--sm { --stack-gap: 12px; }
.stack--lg { --stack-gap: clamp(24px, 3vw, 38px); }

.scroll-x {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
}

/* ---------- 6. 玻璃层与实色面板 ---------- */
.glass {
  position: relative;
  border: 1px solid rgba(140, 151, 184, .24);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(22, 32, 74, .74), rgba(16, 24, 58, .6));
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  box-shadow: var(--shadow);
}

.panel {
  position: relative;
  border: 1px solid rgba(140, 151, 184, .2);
  border-radius: var(--radius);
  background: var(--ink-800);
  overflow: hidden;
}
.panel--solid { background: var(--ink-700); }

.panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  padding: 16px clamp(16px, 2vw, 24px);
  border-bottom: 1px solid rgba(140, 151, 184, .18);
}
.panel__title {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -.01em;
}
.panel__meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--muted);
}
.panel__body { padding: clamp(16px, 2vw, 24px); }
.panel__foot {
  padding: 13px clamp(16px, 2vw, 24px);
  border-top: 1px solid rgba(140, 151, 184, .18);
  background: rgba(7, 12, 38, .42);
}

/* ---------- 7. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: .01em;
  text-decoration: none;
  cursor: pointer;
  transition: transform .16s var(--ease), background-color .16s var(--ease),
              border-color .16s var(--ease), color .16s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--solid {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink-900);
}
.btn--solid:hover { background: var(--orange-soft); border-color: var(--orange-soft); }

.btn--ghost {
  background: rgba(233, 238, 248, .05);
  border-color: rgba(140, 151, 184, .36);
  color: var(--paper);
}
.btn--ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(53, 224, 200, .08);
}

.btn--quiet {
  padding-inline: 6px;
  background: transparent;
  border-color: transparent;
  color: var(--cyan);
}
.btn--quiet:hover { color: var(--paper); }

.btn--sm { padding: 8px 15px; font-size: 13.5px; border-radius: var(--radius-sm); }
.btn--block { width: 100%; }

/* ---------- 8. 标签与筛选 ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  appearance: none;
  -webkit-appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 15px;
  border: 1px solid rgba(140, 151, 184, .32);
  border-radius: 999px;
  background: rgba(22, 32, 74, .55);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 500;
  line-height: 1.4;
  cursor: pointer;
  transition: color .16s var(--ease), border-color .16s var(--ease),
              background-color .16s var(--ease);
}
.chip:hover { color: var(--paper); border-color: rgba(53, 224, 200, .5); }
.chip[aria-pressed="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
  font-weight: 700;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  line-height: 1.6;
  white-space: nowrap;
}
.tag--sync { background: var(--orange); border-color: var(--orange); color: var(--ink-900); font-weight: 700; }
.tag--alert { background: rgba(255, 77, 98, .14); border-color: rgba(255, 77, 98, .45); color: var(--red); }
.tag--live { background: rgba(35, 208, 122, .14); border-color: rgba(35, 208, 122, .45); color: var(--green); }
.tag--info { background: rgba(53, 224, 200, .12); border-color: rgba(53, 224, 200, .4); color: var(--cyan); }

/* ---------- 9. 面包屑 ---------- */
.breadcrumb {
  padding-block: 14px;
  font-size: 13px;
  color: var(--muted);
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}
.breadcrumb li { display: flex; align-items: center; gap: 6px; }
.breadcrumb li + li::before { content: "/"; color: rgba(140, 151, 184, .55); }
.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}
.breadcrumb a:hover { color: var(--cyan); border-bottom-color: rgba(53, 224, 200, .5); }
.breadcrumb [aria-current="page"] { color: var(--paper); }

/* ---------- 10. 图片容器基础规则 ---------- */
.media {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid rgba(140, 151, 184, .22);
  border-radius: var(--radius);
  background: linear-gradient(150deg, #16204A 0%, #0A1030 58%, #07251E 100%);
}
.media__frame {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(.68) contrast(1.16) brightness(.9);
}
.media--wide .media__frame { aspect-ratio: 21 / 9; }
.media--tall .media__frame { aspect-ratio: 4 / 5; }
.media--square .media__frame { aspect-ratio: 1 / 1; }

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    repeating-linear-gradient(0deg, rgba(7, 37, 30, .22) 0 1px, transparent 1px 3px),
    linear-gradient(180deg, rgba(10, 16, 48, 0) 44%, rgba(10, 16, 48, .62) 100%);
}
.media__caption {
  position: relative;
  z-index: 3;
  padding: 10px 14px;
  border-top: 1px solid rgba(140, 151, 184, .16);
  background: rgba(7, 12, 38, .62);
  font-size: 12.5px;
  color: var(--muted);
}
.media__badge { position: absolute; z-index: 4; top: 12px; left: 12px; }

/* ---------- 11. 显现与滚动进度 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .24s var(--ease), transform .24s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 200;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--green) 52%, var(--orange) 100%);
  pointer-events: none;
}

/* ---------- 12. 头部 ---------- */
.masthead {
  position: sticky;
  top: 0;
  z-index: 90;
  background: linear-gradient(180deg, rgba(10, 16, 48, .96), rgba(10, 16, 48, .84));
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  backdrop-filter: blur(16px) saturate(150%);
  border-bottom: 1px solid rgba(53, 224, 200, .22);
}

.masthead__tier--brand {
  background: rgba(22, 32, 74, .42);
  border-bottom: 1px solid rgba(140, 151, 184, .16);
}
.masthead__tier--nav { background: rgba(7, 12, 38, .3); }

.masthead__bar {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.8vw, 26px);
  min-height: 54px;
}
.masthead__bar--nav { min-height: 50px; }

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 1 auto;
  min-width: 0;
  color: var(--paper);
  text-decoration: none;
}
.brand__mark {
  flex: 0 0 auto;
  display: grid;
  align-content: center;
  justify-items: start;
  gap: 3px;
  width: 36px;
  height: 36px;
  padding-left: 8px;
  border: 1px solid rgba(53, 224, 200, .42);
  border-radius: 10px;
  background: linear-gradient(150deg, rgba(22, 32, 74, .95), rgba(10, 16, 48, .95));
}
.brand__mark span { display: block; height: 3px; border-radius: 2px; }
.brand__mark span:nth-child(1) { width: 18px; background: var(--cyan); }
.brand__mark span:nth-child(2) { width: 13px; background: var(--green); }
.brand__mark span:nth-child(3) { width: 8px; background: var(--orange); }

.brand__text { display: flex; flex-direction: column; min-width: 0; line-height: 1.25; }
.brand__name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -.02em;
}
.brand__sub {
  max-width: 52ch;
  overflow: hidden;
  font-size: 12px;
  letter-spacing: .01em;
  color: var(--muted);
  white-space: nowrap;
  text-overflow: ellipsis;
}

/* 同步脉冲 */
.masthead__pulse {
  display: none;
  align-items: center;
  gap: 8px;
  padding-left: clamp(12px, 1.6vw, 20px);
  border-left: 1px solid rgba(140, 151, 184, .25);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--muted);
  white-space: nowrap;
}
.masthead__pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(35, 208, 122, .16);
  animation: pulseDot 2.4s var(--ease) infinite;
}
@keyframes pulseDot {
  0%, 100% { opacity: .55; transform: scale(.86); }
  50% { opacity: 1; transform: scale(1); }
}

.masthead__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

/* 导航 */
.masthead__index {
  display: none;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: rgba(140, 151, 184, .75);
}

.site-nav { min-width: 0; }
.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(2px, .8vw, 8px);
}
.site-nav__list a {
  display: block;
  padding: 9px 13px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: 14.5px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: color .16s var(--ease), background-color .16s var(--ease),
              border-color .16s var(--ease);
}
.site-nav__list a:hover {
  color: var(--paper);
  background: rgba(53, 224, 200, .09);
  border-color: rgba(53, 224, 200, .22);
}
.site-nav__list a[aria-current="page"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
  font-weight: 700;
}

/* 移动菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 14px 9px 12px;
  border: 1px solid rgba(53, 224, 200, .4);
  border-radius: 10px;
  background: rgba(22, 32, 74, .7);
  color: var(--paper);
  cursor: pointer;
  transition: background-color .16s var(--ease), border-color .16s var(--ease);
}
.nav-toggle:hover { background: rgba(53, 224, 200, .14); border-color: var(--cyan); }
.nav-toggle__text { font-size: 14px; font-weight: 600; }
.nav-toggle__bars { position: relative; display: block; width: 16px; height: 12px; }
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
  transition: transform .22s var(--ease), background-color .22s var(--ease);
}
.nav-toggle__bars::before { top: 0; }
.nav-toggle__bars::after { bottom: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before {
  transform: translateY(5px) rotate(45deg);
  background: var(--orange);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after {
  transform: translateY(-5px) rotate(-45deg);
  background: var(--orange);
}

@media (min-width: 1100px) {
  .masthead__pulse { display: inline-flex; }
}
@media (min-width: 960px) {
  .masthead__index { display: inline-flex; }
}

/* ---------- 13. 页脚 ---------- */
.site-foot {
  margin-top: clamp(48px, 7vw, 96px);
  border-top: 1px solid rgba(53, 224, 200, .22);
  background: linear-gradient(180deg, rgba(22, 32, 74, .74), rgba(7, 10, 32, .97));
  color: var(--muted);
  font-size: 13.5px;
}
.site-foot .shell { padding-block: clamp(34px, 5vw, 64px) 0; }

.site-foot__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 48px);
  padding-bottom: clamp(28px, 4vw, 48px);
}
@media (min-width: 860px) {
  .site-foot__grid {
    grid-template-columns: minmax(0, 1.35fr) repeat(3, minmax(0, 1fr));
  }
}

.site-foot__brand { max-width: 46ch; }
.brand--foot .brand__name { font-size: 17px; }
.brand--foot .brand__sub { font-size: 12px; }

.site-foot__note {
  margin-top: 14px;
  line-height: 1.8;
  color: rgba(140, 151, 184, .92);
}
.site-foot__contact {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.95;
  color: rgba(140, 151, 184, .8);
  word-break: break-word;
}

.site-foot__title {
  margin-bottom: 14px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .12em;
  color: var(--paper);
}
.site-foot__links { display: flex; flex-direction: column; gap: 10px; }
.site-foot__links a {
  color: var(--muted);
  text-decoration: none;
  transition: color .16s var(--ease);
}
.site-foot__links a::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 1px;
  margin-right: 9px;
  vertical-align: middle;
  background: var(--cyan);
  opacity: .65;
  transition: width .16s var(--ease);
}
.site-foot__links a:hover { color: var(--cyan); }
.site-foot__links a:hover::before { width: 15px; }

.site-foot__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 22px;
  padding-block: 20px 28px;
  border-top: 1px solid rgba(140, 151, 184, .16);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: rgba(140, 151, 184, .78);
}
.site-foot__legal-line { margin: 0; }
.site-foot__legal-line--muted {
  margin-left: auto;
  color: rgba(140, 151, 184, .6);
}

/* ---------- 14. 移动端断点 ---------- */
@media (max-width: 959px) {
  .nav-toggle { display: inline-flex; }

  .masthead__bar--nav {
    flex-wrap: wrap;
    padding-block: 7px;
  }

  .site-nav {
    flex: 1 0 100%;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height .34s var(--ease), opacity .2s var(--ease);
  }
  .site-nav[data-open] {
    max-height: min(78vh, 560px);
    opacity: 1;
  }
  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding-block: 8px 12px;
  }
  .site-nav__list a {
    padding: 13px 14px;
    border-radius: 10px;
    font-size: 16px;
  }
}

@media (max-width: 680px) {
  .brand__name { font-size: 17px; }
  .brand__sub { max-width: 58vw; font-size: 11px; }
  .brand__mark { width: 32px; height: 32px; padding-left: 7px; }
  .brand__mark span:nth-child(1) { width: 16px; }
  .brand__mark span:nth-child(2) { width: 11px; }
  .brand__mark span:nth-child(3) { width: 7px; }
  .masthead__actions .btn--ghost { display: none; }
  .btn--sm { padding: 8px 13px; font-size: 13px; }
  .site-foot__legal-line--muted { margin-left: 0; }
}

/* ---------- 15. 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  .reveal { opacity: 1; transform: none; }
  .masthead__pulse-dot { animation: none; opacity: 1; }
  .scroll-progress { display: none; }
  .btn:hover { transform: none; }
}