/* ==========================================================
   必一体育 · /assets/site.css
   全局共享样式：reset / 变量 / 排版 / 头部 / 页脚 / 通用组件
   视觉DNA：深绿草坪 + 荧光黄电光 + 数据叙事 + 粗野主义细节
   ========================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  --color-primary-bg: #0A2E1E;
  --color-accent: #C8FF00;
  --color-dark-gradient: #0B1F17;
  --color-text-light: #F5F7F2;
  --color-text-dark: #0C1A14;
  --color-data: #00C2FF;
  --color-warning: #FF3B30;
  --color-success: #00C853;
  --color-alt-bg: #123524;
  --color-border: #2F6B45;

  --font-head: "Inter", "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", sans-serif;
  --font-body: "Roboto", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "SF Mono", "Space Mono", "JetBrains Mono", "Consolas", "Liberation Mono", monospace;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --header-h: 76px;
  --content-max: 1200px;
  --shadow-hard: 4px 4px 0 var(--color-dark-gradient);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  background: var(--color-primary-bg);
}

body {
  min-height: 100vh;
  background: var(--color-primary-bg);
  color: var(--color-text-light);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 顶部阅读进度条 = 比赛进程条 */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1500;
  width: calc(var(--scroll-progress, 0) * 1%);
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-data));
  box-shadow: 0 0 12px rgba(200, 255, 0, 0.6);
  pointer-events: none;
  will-change: width;
}

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

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-text-light);
  overflow-wrap: break-word;
  text-wrap: balance;
}

h1 { font-size: clamp(32px, 4vw + 16px, 56px); }
h2 { font-size: clamp(26px, 2.2vw + 10px, 40px); }
h3 { font-size: clamp(20px, 1.4vw + 10px, 28px); }

p {
  margin-bottom: 1em;
  overflow-wrap: break-word;
}

a {
  color: var(--color-data);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover,
a:focus-visible {
  color: var(--color-accent);
}

ul,
ol {
  margin-bottom: 1em;
  padding-left: 1.4em;
}

li {
  margin-bottom: 0.35em;
}

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

blockquote {
  margin: var(--space-3) 0;
  padding: 12px 20px;
  background: var(--color-alt-bg);
  border-left: 4px solid var(--color-accent);
  color: rgba(245, 247, 242, 0.8);
}

hr {
  height: 2px;
  margin: var(--space-4) 0;
  border: 0;
  background: repeating-linear-gradient(90deg, var(--color-border) 0 8px, transparent 8px 16px);
}

code,
kbd,
samp {
  padding: 2px 6px;
  background: var(--color-dark-gradient);
  border: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

::selection {
  background: var(--color-accent);
  color: var(--color-text-dark);
}

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

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

#main-content:focus {
  outline: none;
}

/* ---------- 3. 工具类 ---------- */
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.text-accent { color: var(--color-accent); }
.text-data { color: var(--color-data); }
.text-muted { color: rgba(245, 247, 242, 0.65); }

/* ---------- 4. 布局 ---------- */
.container {
  width: min(100% - 32px, var(--content-max));
  margin-inline: auto;
}

.grid {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }

@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- 5. 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 2000;
  padding: 12px 20px;
  background: var(--color-accent);
  color: var(--color-text-dark);
  font-weight: 800;
  text-decoration: none;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.6);
  transition: top 0.2s ease;
}

.skip-link:focus-visible {
  top: 16px;
}

/* ---------- 6. 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background:
    linear-gradient(90deg, rgba(200, 255, 0, 0.04) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(180deg, var(--color-primary-bg) 0%, var(--color-dark-gradient) 100%);
  border-bottom: 2px solid var(--color-border);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.45);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 4px;
  background: repeating-linear-gradient(90deg, var(--color-accent) 0 14px, var(--color-data) 14px 28px, transparent 28px 56px);
  opacity: 0.9;
  pointer-events: none;
}

.site-header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  min-height: var(--header-h);
  padding-top: var(--space-1);
  padding-bottom: var(--space-1);
}

/* 品牌 */
.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  color: var(--color-text-light);
  text-decoration: none;
}

.site-brand:hover,
.site-brand:focus-visible {
  color: var(--color-text-light);
}

.site-brand__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  background: var(--color-accent);
  border: 2px solid var(--color-text-light);
  box-shadow: 4px 4px 0 var(--color-border);
  font-size: 18px;
  line-height: 1;
  color: var(--color-text-dark);
  transform: skew(-6deg);
}

.site-brand__text {
  display: grid;
  gap: 2px;
  line-height: 1.2;
  white-space: nowrap;
}

.site-brand__name {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 1px;
  color: var(--color-text-light);
}

.site-brand__tagline {
  justify-self: start;
  padding: 2px 8px;
  background: var(--color-dark-gradient);
  border: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-accent);
  line-height: 1.4;
}

@media (max-width: 479.98px) {
  .site-brand__tagline {
    display: none;
  }
}

/* 导航开关 */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 2px solid var(--color-border);
  background: var(--color-alt-bg);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  border-color: var(--color-accent);
  background: var(--color-dark-gradient);
}

.nav-toggle__box {
  display: grid;
  gap: 5px;
  width: 22px;
}

.nav-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  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);
}

/* 移动端导航（默认状态） */
.site-nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 1001;
  background: linear-gradient(180deg, var(--color-dark-gradient), var(--color-primary-bg));
  border-bottom: 2px solid var(--color-accent);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.site-nav[data-open] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.site-nav__list {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  padding: 8px 20px 20px;
}

.site-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 14px 4px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 800;
  color: var(--color-text-light);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 107, 69, 0.5);
  transition: color 0.15s ease, padding-left 0.15s ease;
}

.site-nav__item:last-child .site-nav__link {
  border-bottom: 0;
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--color-accent);
  padding-left: 8px;
}

.site-nav__link[aria-current="page"] {
  color: var(--color-accent);
}

.site-nav__index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-data);
}

/* 桌面端导航 */
@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    top: auto;
    left: auto;
    right: auto;
    z-index: auto;
    width: auto;
    background: transparent;
    border-bottom: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
  }

  .site-nav__list {
    flex-direction: row;
    align-items: center;
    gap: clamp(16px, 2vw, 36px);
    padding: 0;
  }

  .site-nav__link {
    justify-content: flex-start;
    align-items: baseline;
    padding: 10px 2px;
    font-size: 16px;
    border-bottom: 0;
    white-space: nowrap;
  }

  .site-nav__link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 3px;
    background: var(--color-accent);
    transition: width 0.2s ease;
  }

  .site-nav__link:hover::after,
  .site-nav__link:focus-visible::after,
  .site-nav__link[aria-current="page"]::after {
    width: 100%;
  }
}

/* ---------- 7. 页面首屏章节条 ---------- */
.page-hero {
  position: relative;
  padding: 56px 0 48px;
  border-bottom: 2px solid var(--color-border);
  background:
    radial-gradient(ellipse at 85% 0%, rgba(0, 194, 255, 0.12), transparent 60%),
    linear-gradient(135deg, var(--color-primary-bg) 0%, var(--color-alt-bg) 100%);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -120px;
  width: 260px;
  height: 160px;
  background: repeating-linear-gradient(-45deg, var(--color-accent) 0 6px, transparent 6px 14px);
  transform: skewX(-20deg);
  opacity: 0.5;
  pointer-events: none;
}

.page-hero::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-accent), var(--color-data));
  opacity: 0.7;
  pointer-events: none;
}

.page-hero__index {
  display: inline-block;
  padding: 4px 10px;
  margin-bottom: 20px;
  background: var(--color-dark-gradient);
  border: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  transform: skew(-6deg);
}

.page-hero__title {
  font-size: clamp(34px, 4.5vw + 12px, 56px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: 1px;
  margin-bottom: 16px;
  text-transform: uppercase;
  transform: skewX(-2deg);
}

.page-hero__lead {
  max-width: 620px;
  font-size: 17px;
  line-height: 1.7;
  color: rgba(245, 247, 242, 0.8);
  margin-bottom: 0;
}

/* ---------- 8. 章节标题 ---------- */
.section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: var(--space-5) 0 var(--space-3);
}

.section-title__index {
  flex-shrink: 0;
  padding: 4px 10px;
  background: var(--color-dark-gradient);
  border: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-accent);
}

.section-title__text {
  flex-shrink: 0;
  margin: 0;
  font-size: clamp(22px, 2.5vw + 8px, 30px);
  font-weight: 800;
  color: var(--color-text-light);
}

.section-title__line {
  flex: 1;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--color-border) 0 8px, transparent 8px 16px);
}

/* ---------- 9. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--color-accent);
  border: 2px solid var(--color-accent);
  color: var(--color-text-dark);
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-decoration: none;
  cursor: pointer;
  box-shadow: var(--shadow-hard);
  -webkit-appearance: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--color-dark-gradient);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--color-dark-gradient);
}

.btn--ghost {
  background: transparent;
  color: var(--color-accent);
  box-shadow: 4px 4px 0 transparent;
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: rgba(200, 255, 0, 0.1);
  box-shadow: 4px 4px 0 var(--color-dark-gradient);
}

.btn--data {
  background: transparent;
  border-color: var(--color-data);
  color: var(--color-data);
  font-family: var(--font-mono);
  box-shadow: 4px 4px 0 rgba(0, 194, 255, 0.2);
}

.btn--data:hover,
.btn--data:focus-visible {
  box-shadow: 6px 6px 0 rgba(0, 194, 255, 0.25);
}

/* ---------- 10. 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  padding: 16px 0;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 13px;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  margin: 0;
}

.breadcrumbs li + li::before {
  content: "/";
  margin: 0 8px;
  color: var(--color-border);
}

.breadcrumbs a {
  color: var(--color-data);
  text-decoration: none;
  transition: color 0.15s ease;
}

.breadcrumbs a:hover,
.breadcrumbs a:focus-visible {
  color: var(--color-accent);
}

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

/* ---------- 11. 数据卡片 ---------- */
.card {
  position: relative;
  padding: 24px;
  background: var(--color-alt-bg);
  border: 2px solid var(--color-border);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover,
.card:focus-within {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.card--highlight {
  border-color: var(--color-accent);
  background: linear-gradient(135deg, var(--color-alt-bg) 0%, var(--color-primary-bg) 100%);
}

.card__title {
  margin-bottom: 8px;
  font-size: 20px;
  font-weight: 800;
}

.card__body {
  font-size: 15px;
  color: rgba(245, 247, 242, 0.8);
}

.card__meta {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed var(--color-border);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-data);
}

/* ---------- 12. 标签与状态 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border: 1px solid var(--color-border);
  background: var(--color-dark-gradient);
  color: var(--color-text-light);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  white-space: nowrap;
}

.tag--accent {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text-dark);
}

.tag--red {
  background: var(--color-warning);
  border-color: var(--color-warning);
  color: #FFFFFF;
}

.tag--green {
  background: var(--color-success);
  border-color: var(--color-success);
  color: var(--color-text-dark);
}

@keyframes status-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--color-text-light);
}

.status__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 8px rgba(0, 200, 83, 0.8);
  animation: status-blink 1.5s ease-in-out infinite;
}

.status--live .status__dot {
  background: var(--color-warning);
  box-shadow: 0 0 8px rgba(255, 59, 48, 0.8);
}

.status--sync .status__dot {
  background: var(--color-data);
  box-shadow: 0 0 8px rgba(0, 194, 255, 0.8);
}

.status--paused .status__dot {
  background: var(--color-border);
  box-shadow: none;
  animation: none;
}

/* ---------- 13. 数据展示 ---------- */
.data-display {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-accent);
}

.data-display--xs { font-size: 14px; }
.data-display--lg { font-size: 40px; }

/* ---------- 14. 图片容器 ---------- */
.figure {
  display: block;
  position: relative;
  overflow: hidden;
  min-height: 140px;
  background:
    repeating-linear-gradient(-45deg, rgba(200, 255, 0, 0.04) 0 8px, transparent 8px 16px),
    var(--color-dark-gradient);
  border: 2px solid var(--color-border);
}

.figure--16-9 { aspect-ratio: 16 / 9; }
.figure--4-3 { aspect-ratio: 4 / 3; }
.figure--1-1 { aspect-ratio: 1 / 1; }
.figure--hero { aspect-ratio: 21 / 9; border-width: 3px; }

.figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
  transition: transform 0.3s var(--ease), opacity 0.3s ease;
}

.figure:hover img,
.figure:focus-within img {
  transform: scale(1.02);
  opacity: 1;
}

/* ---------- 15. 页脚 ---------- */
.site-footer {
  margin-top: var(--space-6);
  background:
    radial-gradient(circle at 80% 0%, rgba(200, 255, 0, 0.06), transparent 50%),
    linear-gradient(180deg, var(--color-dark-gradient) 0%, var(--color-primary-bg) 120%);
  color: var(--color-text-light);
  border-top: 2px solid var(--color-border);
}

.site-footer__stripe {
  height: 6px;
  border-bottom: 2px solid var(--color-accent);
  background: repeating-linear-gradient(-45deg, var(--color-accent) 0 10px, transparent 10px 20px);
}

.site-footer__grid {
  display: grid;
  gap: 40px 32px;
  padding: 48px 0;
}

.site-footer__brand,
.site-footer__nav,
.site-footer__contact,
.site-footer__legal {
  min-width: 0;
}

.site-footer__brand {
  display: grid;
  justify-items: start;
  align-content: start;
  gap: 16px;
}

.site-footer .site-brand__name {
  color: var(--color-accent);
}

.site-footer__trust {
  margin: 0;
  padding-left: 12px;
  border-left: 3px solid var(--color-accent);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 247, 242, 0.75);
}

.site-footer__title {
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-accent);
}

.site-footer__links {
  display: grid;
  gap: 10px;
}

.site-footer__links a {
  color: var(--color-text-light);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.15s ease, padding-left 0.15s ease;
}

.site-footer__links a:hover,
.site-footer__links a:focus-visible {
  color: var(--color-accent);
  padding-left: 6px;
}

.site-footer__contact p {
  margin-bottom: 8px;
  font-size: 14px;
}

.site-footer__contact-item {
  display: flex;
  gap: 8px;
  align-items: baseline;
  margin-bottom: 10px;
  line-height: 1.5;
  color: rgba(245, 247, 242, 0.8);
}

.site-footer__contact-item::before {
  content: "›";
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-weight: 700;
}

.site-footer__note {
  margin-top: 16px;
  padding: 8px;
  border: 1px dashed var(--color-border);
  font-size: 12px;
  color: rgba(245, 247, 242, 0.6);
}

.site-footer__bottom {
  padding: 16px 0;
  border-top: 1px solid var(--color-border);
  background: rgba(0, 0, 0, 0.2);
}

.site-footer__bottom-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: rgba(245, 247, 242, 0.65);
}

.site-footer__slogan {
  color: var(--color-accent);
  font-weight: 700;
}

@media (min-width: 640px) {
  .site-footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .site-footer__grid {
    grid-template-columns: 1.4fr 1fr 1.2fr 0.9fr;
  }
}

/* ---------- 16. 滚动条 ---------- */
@media (min-width: 768px) {
  ::-webkit-scrollbar {
    width: 12px;
    height: 12px;
  }

  ::-webkit-scrollbar-track {
    background: var(--color-dark-gradient);
  }

  ::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border: 2px solid var(--color-dark-gradient);
  }

  ::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
  }
}

/* ---------- 17. 响应式与动效偏好 ---------- */
@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;
    scroll-behavior: auto !important;
  }

  .status__dot,
  .status--live .status__dot,
  .status--sync .status__dot {
    animation: none;
  }

  .card:hover,
  .card:focus-within {
    transform: none;
  }
}