/* ============================================================
   /assets/site.css — 完美体育主站 · 共享外壳
   夜场墨蓝 / 面板深蓝 / 珠宝色分区 / 赛场橙操作层 / 信号青数据层
   ============================================================ */

:root {
  --ink: #050A16;
  --panel: #0D1830;
  --teal: #0B2E31;
  --indigo: #22103A;
  --wine: #3A0F1E;
  --orange: #FF6A2B;
  --cyan: #2FE3D2;
  --steel: #7C8798;
  --white: #E9EFF8;
  --amber: #F5C451;

  --rule: rgba(124, 135, 152, 0.42);
  --rule-soft: rgba(124, 135, 152, 0.22);
  --shadow-hard: 8px 8px 0 rgba(0, 0, 0, 0.55);
  --shadow-soft: 5px 5px 0 rgba(0, 0, 0, 0.5);

  --grid-cell: 24px;
  --maxw: 1440px;
  --edge: clamp(16px, 6vw, 96px);
  --head-h: 92px;

  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Noto Sans CJK SC", "Source Han Sans SC", system-ui, -apple-system,
    "Segoe UI", Roboto, sans-serif;
  --font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas,
    "Liberation Mono", "Courier New", monospace;

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

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  background-color: var(--ink);
  background-image:
    linear-gradient(180deg, rgba(47, 227, 210, 0.055) 0, rgba(5, 10, 22, 0) 42vh),
    repeating-linear-gradient(to right, rgba(124, 135, 152, 0.075) 0 1px, transparent 1px var(--grid-cell)),
    repeating-linear-gradient(to bottom, rgba(124, 135, 152, 0.075) 0 1px, transparent 1px var(--grid-cell));
  background-attachment: fixed, fixed, fixed;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, ul, ol, dl {
  margin: 0;
}

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

a {
  color: var(--cyan);
  text-decoration: none;
}

a:hover {
  color: var(--white);
}

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

button {
  font: inherit;
}

#main-content {
  scroll-margin-top: calc(var(--head-h) + 16px);
}

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

::selection {
  background: var(--orange);
  color: var(--ink);
}

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: -120px;
  left: 16px;
  z-index: 300;
  padding: 12px 20px;
  background: var(--orange);
  color: var(--ink);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.04em;
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-soft);
  transition: top 0.18s var(--ease);
}

.skip-link:focus {
  top: 16px;
  color: var(--ink);
}

/* ---------- 头部 ---------- */
.site-head {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: linear-gradient(180deg, rgba(5, 10, 22, 0.82) 0%, rgba(5, 10, 22, 0.28) 70%, rgba(5, 10, 22, 0) 100%);
  border-bottom: 2px solid transparent;
  transition: background-color 0.24s var(--ease), border-color 0.24s var(--ease),
    box-shadow 0.24s var(--ease);
}

.site-head[data-stuck="true"] {
  background: var(--ink);
  border-bottom-color: var(--rule);
  box-shadow: 0 8px 0 rgba(0, 0, 0, 0.35);
  background-image:
    repeating-linear-gradient(to right, rgba(124, 135, 152, 0.07) 0 1px, transparent 1px var(--grid-cell));
}

.head-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 3px;
  background: var(--cyan);
  transform: scaleX(var(--read, 0));
  transform-origin: 0 50%;
  transition: transform 0.12s linear;
  pointer-events: none;
}

.head-frame {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px var(--edge);
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr) minmax(0, auto);
  align-items: center;
  column-gap: clamp(16px, 3vw, 48px);
  transition: padding 0.24s var(--ease);
}

.site-head[data-stuck="true"] .head-frame {
  padding-top: 9px;
  padding-bottom: 9px;
}

/* 品牌区 */
.head-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  text-decoration: none;
}

.brand-mark:hover {
  color: var(--white);
}

.brand-sigil {
  flex: none;
  width: 10px;
  height: 26px;
  background: var(--orange);
  box-shadow: inset 0 0 0 2px rgba(5, 10, 22, 0.4);
  transform: skewX(-12deg);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  min-width: 0;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: 88%;
  font-size: 19px;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--steel);
  text-transform: uppercase;
}

.chan-strip {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--steel);
  white-space: nowrap;
}

.chan-dot {
  flex: none;
  width: 7px;
  height: 7px;
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(245, 196, 81, 0.16);
}

/* 导航 */
.site-nav {
  min-width: 0;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  gap: clamp(8px, 1.5vw, 26px);
  margin: 0;
}

.nav-item {
  list-style: none;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 6px 2px;
  color: var(--white);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
  opacity: 0.82;
  transition: color 0.18s var(--ease), opacity 0.18s var(--ease);
}

.nav-link:hover {
  opacity: 1;
  color: var(--cyan);
}

.nav-link[aria-current="page"] {
  opacity: 1;
  color: var(--white);
}

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -3px;
  height: 3px;
  background: var(--orange);
}

/* 右侧固定入口 */
.head-aside {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

.cue-check {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 13px;
  background: var(--orange);
  color: var(--ink);
  border: 2px solid var(--orange);
  box-shadow: var(--shadow-soft);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.04em;
  white-space: nowrap;
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.cue-check:hover {
  color: var(--ink);
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 rgba(0, 0, 0, 0.5);
}

.cue-check:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.5);
}

.cue-code {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 2px 6px;
  background: rgba(5, 10, 22, 0.14);
  border: 1px solid rgba(5, 10, 22, 0.38);
}

.cue-text {
  font-size: 14px;
}

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  background: transparent;
  color: var(--white);
  border: 2px solid var(--steel);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.nav-toggle-bar {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: background 0.2s var(--ease);
}

.nav-toggle-bar::before,
.nav-toggle-bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s var(--ease);
}

.nav-toggle-bar::before {
  top: -6px;
}

.nav-toggle-bar::after {
  top: 6px;
}

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

.site-head[data-open="true"] .nav-toggle-bar {
  background: transparent;
}

.site-head[data-open="true"] .nav-toggle-bar::before {
  transform: translateY(6px) rotate(45deg);
}

.site-head[data-open="true"] .nav-toggle-bar::after {
  transform: translateY(-6px) rotate(-45deg);
}

/* ---------- 正文容器与网格 ---------- */
.site-main {
  padding-top: var(--head-h);
}

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

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

/* ---------- 分区色带 ---------- */
.zone {
  position: relative;
  padding-block: clamp(48px, 7vw, 104px);
  border-top: 2px solid var(--rule-soft);
}

.zone--ink { background: var(--ink); }
.zone--panel { background: var(--panel); }
.zone--teal { background: var(--teal); }
.zone--indigo { background: var(--indigo); }
.zone--wine { background: var(--wine); }

/* ---------- 面板 ---------- */
.panel {
  position: relative;
  background: var(--panel);
  border: 2px solid var(--rule);
  box-shadow: var(--shadow-hard);
  padding: clamp(20px, 3vw, 40px);
}

.panel--lit {
  border-color: var(--steel);
}

.rule {
  height: 0;
  margin: clamp(20px, 3vw, 32px) 0;
  border: 0;
  border-top: 1px solid var(--rule);
}

/* ---------- 横向条带 ---------- */
.band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(14px, 3vw, 40px);
  padding: clamp(14px, 2.2vw, 26px) 0;
  border-top: 2px solid var(--rule);
  border-bottom: 2px solid var(--rule);
  background: linear-gradient(90deg, rgba(47, 227, 210, 0.08), rgba(5, 10, 22, 0) 62%);
}

/* ---------- 自动平移条带 ---------- */
.ticker {
  overflow: hidden;
  border-top: 2px solid var(--rule);
  border-bottom: 2px solid var(--rule);
  background: var(--indigo);
  padding-block: 12px;
}

.ticker-track {
  display: flex;
  width: max-content;
  gap: clamp(28px, 4vw, 64px);
  white-space: nowrap;
  animation: ticker-run 46s linear infinite;
}

.ticker:hover .ticker-track,
.ticker:focus-within .ticker-track {
  animation-play-state: paused;
}

@keyframes ticker-run {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- 排版组件 ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: 88%;
  font-size: clamp(44px, 7vw, 112px);
  line-height: 0.94;
  letter-spacing: -0.02em;
}

.display--sm {
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: 88%;
  font-size: clamp(30px, 3.4vw, 52px);
  line-height: 1.02;
  letter-spacing: -0.02em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--cyan);
}

.coord {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--amber);
}

.coord::before {
  content: "";
  width: 14px;
  height: 2px;
  background: var(--amber);
}

.annotation-vert {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--steel);
}

.lede {
  max-width: 60ch;
  font-size: 18px;
  line-height: 1.7;
  color: rgba(233, 239, 248, 0.86);
}

.num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.6em;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--cyan);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 3px 9px;
  border: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  padding: 0.85em 1.4em;
  border: 2px solid var(--steel);
  background: transparent;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease),
    background-color 0.18s var(--ease), color 0.18s var(--ease);
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 rgba(0, 0, 0, 0.5);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 rgba(0, 0, 0, 0.5);
}

.btn--primary {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
}

.btn--primary:hover {
  color: var(--ink);
}

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

.btn--ghost:hover {
  color: var(--cyan);
  box-shadow: 7px 7px 0 rgba(47, 227, 210, 0.16);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--steel);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5em;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
}

.breadcrumb li + li::before {
  content: "/";
  color: rgba(124, 135, 152, 0.6);
}

.breadcrumb a {
  color: var(--steel);
  border-bottom: 1px solid transparent;
}

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

.breadcrumb [aria-current="page"] {
  color: var(--white);
}

/* ---------- 章节跟随目录 ---------- */
.section-track {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-left: 14px;
  border-left: 2px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.section-track a {
  color: var(--steel);
  padding: 3px 0;
  transition: color 0.18s var(--ease);
}

.section-track a:hover {
  color: var(--white);
}

.section-track a[aria-current="true"] {
  color: var(--amber);
}

/* ---------- 图片容器 ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  border: 2px solid var(--rule);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(47, 227, 210, 0.09) 0 1px,
    transparent 1px 4px
  );
  pointer-events: none;
}

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

.media-frame--16x9 { aspect-ratio: 16 / 9; }
.media-frame--4x3 { aspect-ratio: 4 / 3; }
.media-frame--1x1 { aspect-ratio: 1 / 1; }
.media-frame--tall { aspect-ratio: 3 / 4; }

/* ---------- 进入视口渐入 ---------- */
[data-reveal] {
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

[data-reveal].is-pending {
  opacity: 0;
  transform: translateY(12px);
}

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed;
  right: clamp(16px, 4vw, 40px);
  bottom: clamp(16px, 4vw, 40px);
  z-index: 95;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4em;
  min-width: 56px;
  height: 52px;
  padding: 0 14px;
  background: var(--panel);
  color: var(--cyan);
  border: 2px solid var(--cyan);
  box-shadow: var(--shadow-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.24s var(--ease), transform 0.24s var(--ease),
    visibility 0.24s var(--ease), background-color 0.18s var(--ease);
}

.back-top:hover {
  background: var(--indigo);
}

.back-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

/* ---------- 页脚 ---------- */
.site-foot {
  position: relative;
  z-index: 1;
  background: var(--panel);
  border-top: 2px solid var(--steel);
  padding: clamp(40px, 6vw, 80px) 0 28px;
  background-image:
    repeating-linear-gradient(to right, rgba(124, 135, 152, 0.06) 0 1px, transparent 1px var(--grid-cell));
}

.foot-frame {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--edge);
}

.foot-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 3.4vw, 56px);
}

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

.foot-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
}

.foot-mark:hover {
  color: var(--white);
}

.foot-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-stretch: 88%;
  font-size: 20px;
  letter-spacing: -0.01em;
}

.foot-tagline {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(233, 239, 248, 0.72);
  max-width: 34ch;
}

.foot-status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.foot-dot {
  flex: none;
  width: 7px;
  height: 7px;
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(245, 196, 81, 0.16);
}

.foot-col-title {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--steel);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule-soft);
}

.foot-list {
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 10px;
}

.foot-link {
  display: inline-block;
  padding: 10px 0;
  min-height: 44px;
  color: var(--white);
  font-size: 15px;
  letter-spacing: 0.02em;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.foot-link:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.foot-contact {
  margin-top: clamp(28px, 4vw, 48px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--rule-soft);
}

.contact-line {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  line-height: 1.9;
  color: var(--steel);
  word-break: break-word;
}

.foot-legal {
  margin-top: clamp(20px, 3vw, 28px);
  padding-top: clamp(16px, 2.4vw, 22px);
  border-top: 1px solid var(--rule-soft);
  display: grid;
  gap: 8px;
}

.legal-line {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.legal-note {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(124, 135, 152, 0.92);
  max-width: 62ch;
}

.foot-copy {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(124, 135, 152, 0.8);
}

/* ---------- 响应式：平板 ---------- */
@media (max-width: 1240px) {
  .chan-strip {
    display: none;
  }
  .grid-12 {
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }
  .foot-grid {
    grid-template-columns: 1fr 1fr;
  }
  .foot-brand {
    grid-column: 1 / -1;
  }
}

/* ---------- 响应式：移动 / 抽屉导航 ---------- */
@media (max-width: 980px) {
  :root {
    --head-h: 78px;
  }

  .head-frame {
    grid-template-columns: minmax(0, 1fr) auto;
    row-gap: 0;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    background: var(--panel);
    border-top: 2px solid var(--rule);
    border-bottom: 2px solid var(--steel);
    box-shadow: 0 12px 0 rgba(0, 0, 0, 0.45);
    padding: 6px var(--edge) 18px;
    max-height: calc(100vh - var(--head-h));
    overflow-y: auto;
  }

  .site-head[data-open="true"] .site-nav {
    display: block;
  }

  .site-head[data-open="true"] {
    background: var(--ink);
    border-bottom-color: var(--rule);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-item + .nav-item {
    border-top: 1px solid var(--rule-soft);
  }

  .nav-link {
    display: block;
    padding: 14px 0;
    font-size: 17px;
    opacity: 0.92;
  }

  .nav-link[aria-current="page"]::after {
    left: 0;
    right: auto;
    width: 36px;
    bottom: 8px;
  }

  .head-aside {
    gap: 10px;
  }

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

@media (max-width: 640px) {
  .grid-12 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .cue-code {
    display: none;
  }

  .cue-check {
    padding: 8px 12px;
  }

  .brand-name {
    font-size: 17px;
  }

  .display {
    font-size: clamp(38px, 11vw, 60px);
  }

  .foot-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .foot-brand {
    grid-column: auto;
  }

  .back-top {
    right: 14px;
    bottom: 14px;
    min-width: 50px;
    height: 48px;
    font-size: 11px;
  }
}

/* ---------- 动效降级 ---------- */
@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;
  }

  .ticker-track {
    animation: none;
    transform: none;
  }

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

  .back-top {
    transition: none;
  }
}