/* =========================================================
   6686体育 全站共享样式 /assets/site.css
   概念：深空竞技场 × 内容档案
   ========================================================= */

/* ---------- 设计变量 ---------- */
:root {
  --c-deep-space: #0B1B2D;
  --c-dark-sea: #0F2438;
  --c-ink: #081220;
  --c-cyan: #00F0FF;
  --c-lime: #BFFF00;
  --c-orange: #FF6B1A;
  --c-violet: #7A5CFF;
  --c-text: #F2F5F8;
  --c-text-dim: #A9B7C6;
  --c-line: #1E3A5F;

  --font-heading: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-num: 'Roboto Mono', 'Liberation Mono', monospace;

  --container-max: 1200px;
  --space-section: 4.5rem;
  --space-block: 2.5rem;
}

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

* {
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-deep-space);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

a:hover {
  color: var(--c-text);
}

ul,
ol {
  padding-left: 1.25rem;
}

li {
  margin-bottom: 0.375rem;
}

p {
  margin-bottom: 1.25rem;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--c-text);
  margin: 1.5em 0 0.75em;
}

h1:first-child,
h2:first-child,
h3:first-child,
h4:first-child,
h5:first-child,
h6:first-child {
  margin-top: 0;
}

main {
  display: block;
}

#main-content {
  display: block;
  min-height: 70vh;
  scroll-margin-top: 5rem;
}

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

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--c-deep-space);
}

::-webkit-scrollbar-thumb {
  background: var(--c-line);
  border-radius: 0;
}

::-webkit-scrollbar-thumb:hover {
  background: #2a4f7a;
}

/* ---------- 辅助与无障碍 ---------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 200;
  padding: 0.75rem 1.25rem;
  background: var(--c-lime);
  color: var(--c-ink);
  font-weight: 600;
  text-decoration: none;
  border-radius: 0 0 4px 0;
  font-size: 0.875rem;
}

.skip-link:focus {
  left: 0;
}

/* ---------- 布局容器 ---------- */
.container {
  width: min(100% - 2.5rem, var(--container-max));
  margin-inline: auto;
}

/* ---------- 品牌组合 ---------- */
.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-lockup__mark {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  background: linear-gradient(135deg, var(--c-cyan) 0%, var(--c-lime) 100%);
  color: var(--c-ink);
  font-family: var(--font-num);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  border-radius: 2px;
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.35);
}

.brand-lockup__text {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--c-text);
  letter-spacing: 0.04em;
  line-height: 1;
}

.brand-lockup:hover .brand-lockup__text {
  color: var(--c-cyan);
}

/* ---------- 顶部数据脉冲条 ---------- */
.score-tape {
  display: flex;
  align-items: center;
  gap: 0;
  height: 1.75rem;
  padding: 0 1rem;
  background:
    linear-gradient(90deg, rgba(0, 240, 255, 0.08), transparent 55%),
    var(--c-ink);
  border-bottom: 1px solid var(--c-line);
  font-family: var(--font-num);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--c-text-dim);
  text-transform: uppercase;
  overflow: hidden;
  white-space: nowrap;
}

.score-tape__cell {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0 1.25rem;
  border-right: 1px solid var(--c-line);
}

.score-tape__cell:first-child {
  padding-left: 0;
}

.score-tape__cell:first-child::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--c-lime);
  box-shadow: 0 0 6px var(--c-lime);
  animation: refresh-blink 15s linear infinite;
}

@keyframes refresh-blink {
  0%, 94% {
    opacity: 1;
    box-shadow: 0 0 6px var(--c-lime);
  }
  96%, 98% {
    opacity: 0.3;
    box-shadow: 0 0 16px var(--c-lime);
  }
  100% {
    opacity: 1;
    box-shadow: 0 0 6px var(--c-lime);
  }
}

/* ---------- 全站头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background:
    linear-gradient(100deg, rgba(0, 240, 255, 0.04), transparent 35%),
    rgba(11, 27, 45, 0.97);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow 0.25s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 6px 24px rgba(8, 18, 32, 0.55);
}

.arena-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-top: 0.875rem;
  padding-bottom: 0.875rem;
  position: relative;
}

/* ---------- 主导航（左版/右栏） ---------- */
.arena-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-left: auto;
}

.arena-nav__link {
  position: relative;
  padding: 0.5rem 0.125rem;
  color: var(--c-text-dim);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s ease;
}

.arena-nav__link::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 4px;
  margin-right: 0.4em;
  background: var(--c-cyan);
  border-radius: 1px;
  transform: rotate(45deg);
  vertical-align: middle;
  opacity: 0;
  transition: opacity 0.18s ease;
}

.arena-nav__link:hover,
.arena-nav__link[aria-current="page"] {
  color: var(--c-text);
}

.arena-nav__link:hover::before,
.arena-nav__link[aria-current="page"]::before {
  opacity: 1;
}

.arena-nav__link[aria-current="page"]::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 100%;
  height: 2px;
  background: var(--c-orange);
  transform: skewX(-30deg);
}

/* ---------- 头部右侧动作区 ---------- */
.arena-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  position: relative;
  z-index: 100;
  flex-shrink: 0;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.125rem;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.2;
  border: 1px solid var(--c-line);
  border-radius: 2px;
  background: var(--c-dark-sea);
  color: var(--c-text);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.btn:hover {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
}

.btn--cta {
  background: var(--c-orange);
  border-color: var(--c-orange);
  color: #0B1B2D;
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.25);
}

.btn--cta:hover {
  background: #ff7d3d;
  border-color: #ff7d3d;
  color: #0B1B2D;
  transform: translateY(-2px);
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.25);
}

.btn__arrow {
  font-family: var(--font-num);
  font-size: 0.875em;
  transition: transform 0.15s ease;
}

.btn--cta:hover .btn__arrow {
  transform: translateX(2px);
}

/* ---------- 移动导航按钮 ---------- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0.5rem;
  border: 1px solid var(--c-line);
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
}

.nav-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--c-text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- 滚动进度条 ---------- */
.read-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-lime));
  z-index: 5;
  pointer-events: none;
}

/* ---------- 全站页脚 ---------- */
.site-footer {
  background:
    linear-gradient(95deg, transparent 0%, transparent 40%, rgba(0, 240, 255, 0.03) 40.1%, transparent 40.3%),
    var(--c-ink);
  border-top: 1px solid var(--c-line);
  color: var(--c-text-dim);
  font-size: 0.9375rem;
  margin-top: var(--space-section);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-cyan) 0%, var(--c-lime) 35%, transparent 75%);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1.2fr 1fr 1fr;
  gap: 2.5rem 3rem;
  padding-top: 3rem;
  padding-bottom: 2.5rem;
}

.footer-title {
  display: block;
  font-family: var(--font-num);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-cyan);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--c-line);
}

.footer-brand {
  display: grid;
  align-content: start;
  gap: 0.875rem;
}

.footer-brand__note {
  font-size: 0.875rem;
  color: var(--c-text-dim);
  line-height: 1.6;
  margin: 0;
}

.footer-brand__trust {
  font-family: var(--font-num);
  font-size: 0.75rem;
  line-height: 1.7;
  color: var(--c-violet);
  border-left: 2px solid var(--c-violet);
  padding-left: 0.75rem;
  margin: 0.25rem 0 0;
}

.footer-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 1.5rem;
  align-content: start;
}

.footer-nav__link,
.footer-legal__link {
  color: var(--c-text-dim);
  text-decoration: none;
  font-size: 0.875rem;
  line-height: 1.4;
  padding: 0.15rem 0;
  transition: color 0.15s ease;
}

.footer-nav__link:hover,
.footer-legal__link:hover {
  color: var(--c-text);
}

.footer-contact {
  display: grid;
  gap: 0.75rem;
  align-content: start;
}

.footer-contact__line {
  display: block;
  color: var(--c-text-dim);
  font-size: 0.875rem;
  line-height: 1.6;
  overflow-wrap: break-word;
  word-break: break-word;
}

.footer-contact__line--mail {
  font-family: var(--font-num);
  font-size: 0.8125rem;
  color: var(--c-cyan);
}

.footer-legal {
  display: grid;
  gap: 0.625rem;
  align-content: start;
}

.footer-legal__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-legal__link::before {
  content: '';
  width: 5px;
  height: 5px;
  background: var(--c-violet);
  transform: rotate(45deg);
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid var(--c-line);
  padding: 1rem 0;
  font-family: var(--font-num);
  font-size: 0.75rem;
  color: var(--c-text-dim);
}

.footer-bottom__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-bottom__icp {
  letter-spacing: 0.03em;
}

/* ---------- 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  padding: 1.25rem 0 0;
  font-size: 0.8125rem;
  color: var(--c-text-dim);
}

.breadcrumbs__link {
  color: var(--c-text-dim);
}

.breadcrumbs__link:hover {
  color: var(--c-cyan);
}

.breadcrumbs__sep {
  color: var(--c-line);
  font-family: var(--font-num);
}

.breadcrumbs [aria-current="page"] {
  color: var(--c-text);
}

/* ---------- 页面标题区 ---------- */
.page-hero {
  padding: var(--space-section) 0 2.5rem;
  position: relative;
}

.page-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 0.75rem;
}

.page-lead {
  font-size: 1rem;
  color: var(--c-text-dim);
  line-height: 1.7;
  max-width: 65ch;
  margin: 0;
}

/* ---------- 目录索引块 ---------- */
.section-index {
  border: 1px solid var(--c-line);
  background: var(--c-dark-sea);
  padding: 1.5rem;
  position: relative;
}

.section-index::after {
  content: '';
  position: absolute;
  top: -1px;
  right: -1px;
  width: 14px;
  height: 14px;
  border-top: 1px solid var(--c-lime);
  border-right: 1px solid var(--c-lime);
}

.section-index__title {
  display: block;
  font-family: var(--font-num);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin-bottom: 1rem;
  font-weight: 700;
}

.section-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.625rem;
}

.section-index__link {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  color: var(--c-text-dim);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: color 0.15s ease;
}

.section-index__link:hover {
  color: var(--c-text);
}

.section-index__link.is-active {
  color: var(--c-cyan);
}

.section-index__num {
  font-family: var(--font-num);
  font-size: 0.75rem;
  color: var(--c-orange);
  letter-spacing: 0.06em;
}

/* ---------- 档案卡片 ---------- */
.record-card {
  background: var(--c-dark-sea);
  border: 1px solid var(--c-line);
  padding: 1.5rem;
  position: relative;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.record-card::before {
  content: '';
  position: absolute;
  top: -1px;
  right: -1px;
  width: 0;
  height: 0;
  border-left: 12px solid transparent;
  border-top: 12px solid var(--c-lime);
}

.record-card:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 240, 255, 0.5);
}

/* ---------- 数据数字 ---------- */
.stat-num {
  font-family: var(--font-num);
  font-size: 2.25rem;
  line-height: 1.1;
  color: var(--c-cyan);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* ---------- 标签角标 ---------- */
.tag-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25em 0.6em;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--c-lime);
  border: 1px solid rgba(191, 255, 0, 0.4);
  border-radius: 1px;
  background: rgba(191, 255, 0, 0.06);
  text-transform: uppercase;
  line-height: 1.4;
}

/* ---------- 纵向小注 ---------- */
.edge-label {
  display: inline-block;
  writing-mode: vertical-rl;
  font-family: var(--font-num);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--c-violet);
  border-left: 2px solid var(--c-violet);
  padding-left: 0.5rem;
  text-transform: uppercase;
  white-space: nowrap;
}

/* ---------- 图片容器 ---------- */
.img-shell {
  --aspect: 16 / 9;
  position: relative;
  display: block;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(0, 240, 255, 0.06), transparent 40%),
    var(--c-dark-sea);
  border: 1px solid var(--c-line);
  aspect-ratio: var(--aspect);
}

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

.img-shell::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(191, 255, 0, 0.07) 35%, transparent 40%);
  pointer-events: none;
}

.img-shell--wide {
  --aspect: 21 / 9;
}

.img-shell--square {
  --aspect: 1 / 1;
}

/* ---------- 斜切分隔线 ---------- */
.cut-diag {
  display: block;
  height: 1px;
  margin: var(--space-block) 0;
  border: none;
  background: var(--c-line);
  position: relative;
  overflow: visible;
}

.cut-diag::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 5%;
  width: 22%;
  height: 1px;
  background: var(--c-cyan);
  transform: translateY(-50%) rotate(-2deg);
}

.cut-diag::after {
  content: '';
  position: absolute;
  top: 50%;
  right: 8%;
  width: 14%;
  height: 1px;
  background: var(--c-orange);
  transform: translateY(-50%) rotate(2deg);
}

/* ---------- 数据表格 ---------- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table th,
.data-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--c-line);
  text-align: left;
  color: var(--c-text-dim);
}

.data-table th {
  color: var(--c-text);
  font-weight: 600;
  background: var(--c-dark-sea);
  font-family: var(--font-num);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.data-table td:first-child {
  font-weight: 600;
  color: var(--c-text);
}

.data-table tr:hover td {
  background: rgba(0, 240, 255, 0.04);
}

/* ---------- 正文排版 ---------- */
.body-copy {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c-text-dim);
}

.body-copy p {
  margin: 0 0 1.25rem;
}

.body-copy strong {
  color: var(--c-text);
  font-weight: 700;
}

.body-copy a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.body-copy h2 {
  color: var(--c-text);
  font-size: 1.375rem;
  margin: 2.5rem 0 1rem;
  padding-left: 0.75rem;
  border-left: 3px solid var(--c-orange);
}

.body-copy h3 {
  color: var(--c-text);
  font-size: 1.125rem;
  margin: 2rem 0 0.75rem;
}

.body-copy ul,
.body-copy ol {
  padding-left: 1.5rem;
  margin: 0 0 1.25rem;
}

.body-copy li {
  margin-bottom: 0.375rem;
}

/* ---------- 折叠问答 ---------- */
.faq-item {
  border-bottom: 1px solid var(--c-line);
}

.faq-item:first-child {
  border-top: 1px solid var(--c-line);
}

.faq-item__summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  font-weight: 600;
  color: var(--c-text);
  cursor: pointer;
  list-style: none;
}

.faq-item__summary::-webkit-details-marker {
  display: none;
}

.faq-item__summary::after {
  content: '+';
  font-family: var(--font-num);
  font-size: 1.25rem;
  color: var(--c-cyan);
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-item__summary::after {
  transform: rotate(45deg);
}

.faq-item__body {
  padding: 0 0 1.25rem;
  color: var(--c-text-dim);
  line-height: 1.7;
}

/* ---------- 滚动显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.45s ease, transform 0.45s ease;
  will-change: opacity, transform;
}

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

/* ---------- 滚动章节高亮 ---------- */
[data-spy-link] {
  transition: color 0.2s ease;
}

[data-spy-link].is-active {
  color: var(--c-cyan);
}

[data-spy-section] {
  scroll-margin-top: 5rem;
}

/* ---------- 响应式：平板与移动 ---------- */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
    max-width: 42rem;
  }
}

@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
  }

  .arena-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(85vw, 22rem);
    margin-left: 0;
    background: var(--c-ink);
    border-left: 1px solid var(--c-line);
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    gap: 0;
    padding: 5.5rem 1.5rem 2rem;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.25s ease, visibility 0.25s ease;
    overflow-y: auto;
    z-index: 90;
    box-shadow: -10px 0 30px rgba(8, 18, 32, 0.5);
  }

  .arena-nav[data-open] {
    transform: translateX(0);
    visibility: visible;
  }

  .arena-nav__link {
    display: block;
    padding: 1rem 0.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    border-bottom: 1px solid var(--c-line);
  }

  .arena-nav__link::before {
    display: none;
  }

  .arena-nav__link[aria-current="page"]::after {
    bottom: 0;
    height: 3px;
  }
}

@media (max-width: 768px) {
  .score-tape {
    font-size: 0.625rem;
    height: 1.5rem;
    letter-spacing: 0.08em;
  }

  .score-tape__cell {
    padding: 0 0.875rem;
  }

  .score-tape__cell:nth-child(3) {
    display: none;
  }

  .arena-bar {
    gap: 0.75rem;
  }

  .brand-lockup__text {
    font-size: 1rem;
  }

  .btn--cta {
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
  }

  .btn__arrow {
    display: none;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 1.5rem, var(--container-max));
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-brand {
    max-width: none;
  }

  .footer-bottom__row {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .brand-lockup__text {
    font-size: 0.9375rem;
  }

  .brand-lockup__mark {
    width: 2rem;
    height: 2rem;
    font-size: 0.75rem;
  }

  .arena-bar {
    padding-top: 0.625rem;
    padding-bottom: 0.625rem;
  }

  .container {
    width: calc(100% - 1.25rem);
  }
}

/* ---------- 减少动态偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .score-tape__cell:first-child::before {
    animation: none;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .record-card:hover,
  .btn--cta:hover {
    transform: none;
  }
}