/* ============================================================
   风速体育 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 页头 / 页脚 / 基础组件
   ============================================================ */

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

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

body { margin: 0; }

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

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

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

h1, h2, h3, h4, h5, p, ul, ol, figure, blockquote { margin: 0; }

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

table { border-collapse: collapse; }

:root {
  --blue: #0A6CFF;
  --blue-deep: #0A47A8;
  --cyan: #00E5CC;
  --black: #070B12;
  --navy: #0B1B33;
  --indigo: #2B1B6B;
  --wine: #6E1230;
  --amber: #FFB020;
  --white: #F4F8FF;
  --steel: #8A97A8;
  --glass: rgba(0, 229, 204, 0.12);
  --teal-deep: #032B2F;

  --line: rgba(138, 151, 168, 0.22);
  --line-soft: rgba(138, 151, 168, 0.14);
  --line-cyan: rgba(0, 229, 204, 0.38);
  --grid: rgba(10, 108, 255, 0.10);

  --gutter: clamp(16px, 4vw, 44px);
  --maxw: 1400px;
  --radius: 2px;

  --font-head: "Barlow Condensed", "Impact", "Haettenschweiler", "PingFang SC", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-num: "Barlow Condensed", "DIN Alternate", "Roboto Condensed", "Impact", ui-monospace, monospace;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 基础排版 ---------- */

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--white);
  background-color: var(--black);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: -1px -1px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--white);
}

p { text-wrap: pretty; }

::selection {
  background: var(--cyan);
  color: var(--black);
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- 跳转链接 ---------- */

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 300;
  padding: 0.62em 1.05em;
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--black);
  background: var(--cyan);
  border-radius: var(--radius);
  transform: translateY(-220%);
  transition: transform 0.2s var(--ease);
}

.skip-link:focus {
  transform: translateY(0);
}

/* ---------- 布局容器 ---------- */

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: clamp(40px, 7vw, 88px);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 28px);
}

@media (max-width: 900px) {
  .grid-12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

@media (max-width: 600px) {
  .grid-12 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 页头：紧凑命令栏 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: rgba(7, 11, 18, 0.93);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.site-header.is-scrolled {
  background: rgba(7, 11, 18, 0.98);
  box-shadow: 0 18px 40px -30px rgba(0, 0, 0, 1);
}

.hdr-grid {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 12px;
  min-height: 60px;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding-block: 10px;
  color: var(--white);
}

.brand-mark {
  position: relative;
  display: block;
  flex: 0 0 auto;
  width: 40px;
  height: 28px;
  background: linear-gradient(118deg, var(--blue) 0%, var(--cyan) 100%);
  clip-path: polygon(14% 0, 100% 0, 86% 100%, 0 100%);
}

.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  top: 7px;
  bottom: 7px;
  width: 3px;
  background: var(--black);
  transform: skewX(-16deg);
}

.brand-mark::before { left: 34%; }
.brand-mark::after { left: 58%; }

.brand-words {
  display: grid;
  gap: 1px;
  line-height: 1;
}

.brand-name {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.16rem;
  letter-spacing: 0.06em;
  color: var(--white);
}

.brand-sub {
  font-family: var(--font-num);
  font-style: italic;
  font-weight: 700;
  font-size: 0.62rem;
  letter-spacing: 0.28em;
  color: var(--cyan);
}

.hdr-status {
  order: 2;
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-num);
  font-style: italic;
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
  white-space: nowrap;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 0 rgba(0, 229, 204, 0.55);
  animation: statusPulse 2.6s ease-out infinite;
}

@keyframes statusPulse {
  0%   { box-shadow: 0 0 0 0 rgba(0, 229, 204, 0.55); }
  70%  { box-shadow: 0 0 0 9px rgba(0, 229, 204, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 229, 204, 0); }
}

.nav-toggle {
  order: 3;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  color: var(--cyan);
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.nav-toggle:hover {
  background: rgba(0, 229, 204, 0.12);
  color: var(--white);
}

.nav-toggle-bars {
  display: grid;
  gap: 4px;
  width: 18px;
}

.nav-toggle-bars span {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform 0.26s var(--ease), opacity 0.18s var(--ease);
}

.nav-toggle-label { line-height: 1; }

.site-header[data-open="true"] .nav-toggle {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--black);
}

.site-header[data-open="true"] .nav-toggle-bars span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.site-header[data-open="true"] .nav-toggle-bars span:nth-child(2) {
  opacity: 0;
}

.site-header[data-open="true"] .nav-toggle-bars span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.site-nav {
  order: 4;
  flex: 1 0 100%;
  max-height: 0;
  overflow: hidden;
  border-top: 0 solid var(--line);
  transition: max-height 0.34s var(--ease);
}

.site-header[data-open="true"] .site-nav {
  max-height: 620px;
  border-top: 1px solid var(--line);
}

.nav-track {
  display: block;
  padding: 8px var(--gutter) 18px;
  counter-reset: navi;
}

.nav-item {
  display: block;
  counter-increment: navi;
}

.nav-link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 0.6em;
  width: 100%;
  padding: 12px 12px 12px 14px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--steel);
  border-left: 2px solid transparent;
  border-bottom: 1px solid var(--line-soft);
  white-space: nowrap;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.nav-link::before {
  content: counter(navi, decimal-leading-zero);
  font-family: var(--font-num);
  font-style: italic;
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: rgba(0, 229, 204, 0.6);
  transform: translateY(-0.08em);
}

.nav-link::after {
  display: none;
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.24s var(--ease);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--white);
  background: rgba(10, 108, 255, 0.12);
}

.nav-link[aria-current="page"] {
  color: var(--white);
  background: rgba(10, 108, 255, 0.14);
  border-left-color: var(--cyan);
}

.nav-link[aria-current="page"]::before {
  color: var(--amber);
}

@media (min-width: 901px) {
  .hdr-grid {
    flex-wrap: nowrap;
    gap: 0 26px;
    min-height: 66px;
  }

  .hdr-grid > .brand {
    padding-right: 22px;
    border-right: 1px solid var(--line);
  }

  .site-nav {
    order: 2;
    flex: 0 1 auto;
    margin-left: auto;
    max-height: none;
    overflow: visible;
    border-top: 0;
  }

  .site-header[data-open="true"] .site-nav {
    max-height: none;
    border-top: 0;
  }

  .nav-track {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 0;
  }

  .nav-item { display: block; }

  .nav-link {
    width: auto;
    padding: 10px 14px;
    font-size: 0.88rem;
    border-left: 0;
    border-bottom: 0;
  }

  .nav-link::after { display: block; }

  .nav-link:hover { background: rgba(10, 108, 255, 0.14); }

  .nav-link[aria-current="page"] {
    background: transparent;
    border-left-color: transparent;
  }

  .nav-link[aria-current="page"]::after {
    transform: scaleX(1);
  }

  .nav-link:hover::after {
    transform: scaleX(1);
  }

  .hdr-status {
    order: 3;
    margin-left: 0;
  }

  .nav-toggle { display: none; }
}

.scroll-meter {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  background: rgba(138, 151, 168, 0.16);
}

.scroll-meter__fill {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--blue) 0%, var(--cyan) 100%);
  transition: width 0.1s linear;
}

/* ---------- 页脚：数据面板 ---------- */

.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 110px);
  overflow: hidden;
  color: var(--white);
  border-top: 1px solid rgba(0, 229, 204, 0.28);
  background:
    radial-gradient(1200px 420px at 12% -12%, rgba(10, 108, 255, 0.20), transparent 72%),
    radial-gradient(900px 380px at 96% 0%, rgba(43, 27, 107, 0.42), transparent 70%),
    linear-gradient(180deg, var(--teal-deep) 0%, #04161a 62%, #050a10 100%);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 229, 204, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 204, 0.07) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 82%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.95), transparent 82%);
}

.site-footer::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, var(--blue) 0%, var(--cyan) 34%, var(--amber) 56%, rgba(255, 176, 32, 0) 92%);
}

.footer-inner {
  position: relative;
  z-index: 1;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(34px, 5vw, 64px) var(--gutter) clamp(20px, 3vw, 30px);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: clamp(24px, 3vw, 44px);
}

.footer-brand { min-width: 0; }

.footer-brand .brand { padding-block: 0; }

.footer-note {
  margin-top: 14px;
  max-width: 34ch;
  font-size: 0.8rem;
  line-height: 1.75;
  color: var(--steel);
}

.footer-col { min-width: 0; }

.footer-head {
  margin-bottom: 14px;
  padding-bottom: 8px;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  color: var(--cyan);
  border-bottom: 1px solid rgba(0, 229, 204, 0.22);
}

.footer-list {
  display: grid;
  gap: 7px;
}

.footer-link {
  display: inline-block;
  padding-block: 3px;
  font-size: 0.9rem;
  color: var(--steel);
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--white);
  border-bottom-color: var(--cyan);
}

.footer-link--inline {
  display: inline;
  padding-block: 0;
  font-size: 0.8rem;
}

.footer-col--contact .footer-list { gap: 0; }

.contact-item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 10px;
  padding-block: 9px;
  border-bottom: 1px dashed rgba(138, 151, 168, 0.2);
}

.contact-item:first-child { padding-top: 0; }

.contact-label {
  padding-top: 3px;
  font-family: var(--font-num);
  font-style: italic;
  font-weight: 700;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.contact-value {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
  font-variant-numeric: tabular-nums;
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  margin-top: clamp(28px, 4vw, 46px);
  padding-top: 18px;
  border-top: 1px solid rgba(138, 151, 168, 0.22);
}

.footer-copy {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--steel);
  font-variant-numeric: tabular-nums;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.footer-sep {
  font-size: 0.78rem;
  color: rgba(138, 151, 168, 0.45);
}

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .footer-base { flex-direction: column; align-items: flex-start; }
  .footer-note { max-width: none; }
}

/* ---------- 返回顶部 ---------- */

.to-top {
  position: fixed;
  right: clamp(14px, 3vw, 30px);
  bottom: clamp(14px, 3vw, 30px);
  z-index: 140;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 9px 14px;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: var(--cyan);
  background: rgba(7, 11, 18, 0.82);
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.26s var(--ease), transform 0.26s var(--ease), visibility 0.26s var(--ease), background-color 0.2s var(--ease);
}

.to-top[data-visible="true"] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.to-top:hover {
  background: var(--cyan);
  color: var(--black);
}

.to-top__arrow {
  font-family: var(--font-num);
  font-style: italic;
  font-size: 1rem;
  line-height: 1;
}

/* ---------- 通用按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55em;
  padding: 0.78em 1.4em;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform 0.18s var(--ease), background-color 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.24s var(--ease);
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  color: #ffffff;
  background: var(--blue);
  border-color: rgba(0, 229, 204, 0.42);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.btn-primary:hover {
  background: #0a5ae0;
  box-shadow: 0 0 0 1px rgba(0, 229, 204, 0.6), 0 16px 32px -18px rgba(10, 108, 255, 0.95);
}

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

.btn-ghost:hover {
  color: var(--white);
  background: rgba(0, 229, 204, 0.1);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 面包屑 ---------- */

.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55em;
  padding-block: 14px;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--steel);
}

.crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55em;
}

.crumbs li + li::before {
  content: "/";
  margin-right: 0.55em;
  color: rgba(138, 151, 168, 0.5);
}

.crumbs a {
  color: var(--steel);
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.crumbs a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.crumbs [aria-current="page"] {
  color: var(--white);
  font-weight: 700;
}

/* ---------- 章节头 ---------- */

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 24px;
  margin-bottom: clamp(20px, 3vw, 36px);
}

.section-title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--white);
}

.rule {
  height: 1px;
  border: 0;
  margin-block: clamp(24px, 3vw, 40px);
  background: linear-gradient(90deg, var(--cyan) 0%, rgba(0, 229, 204, 0) 78%);
}

/* ---------- 标签与面板 ---------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 4px 10px 4px 9px;
  font-family: var(--font-num);
  font-style: italic;
  font-weight: 700;
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(0, 229, 204, 0.08);
  border-left: 3px solid var(--amber);
}

.tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--cyan);
  border: 1px solid var(--line-cyan);
  border-radius: 1px;
  white-space: nowrap;
}

.tag--amber {
  color: var(--amber);
  border-color: rgba(255, 176, 32, 0.5);
}

.panel {
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--navy);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.panel--glass {
  background: var(--glass);
  border-color: var(--line-cyan);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* ---------- 数字与数据表 ---------- */

.num,
.score-num {
  font-family: var(--font-num);
  font-style: italic;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.score-num {
  font-weight: 700;
  font-size: clamp(48px, 9vw, 120px);
  line-height: 0.9;
  color: var(--amber);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

.data-table th {
  padding: 8px 10px;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-align: left;
  color: var(--cyan);
  border-bottom: 1px solid var(--line-cyan);
}

.data-table td {
  padding: 10px;
  font-size: 0.92rem;
  color: var(--white);
  border-bottom: 1px solid var(--line-soft);
}

.data-table tbody tr:nth-child(odd) {
  background: var(--glass);
}

/* ---------- 响应式图片容器（页面阶段放图/占位） ---------- */

.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, var(--navy) 0%, var(--black) 100%);
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 4 / 5; }

.media-frame > img,
.media-frame > picture > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(var(--cyan), var(--cyan)) left top / 16px 1px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) left top / 1px 16px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) right top / 16px 1px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) right top / 1px 16px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) left bottom / 16px 1px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) left bottom / 1px 16px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) right bottom / 16px 1px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) right bottom / 1px 16px no-repeat;
  opacity: 0.75;
}

.media-frame__cap {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 2;
  padding: 4px 10px;
  font-family: var(--font-num);
  font-style: italic;
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--black);
  background: var(--amber);
}

/* ---------- 减弱动态偏好 ---------- */

@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;
    scroll-behavior: auto !important;
  }

  .status-dot { animation: none; }
  .scroll-meter__fill { transition: none; }
  .btn:hover,
  .to-top { transform: none; }
}