:root {
  --bg-primary: #0A1E3F;
  --bg-panel: #12294F;
  --bg-elevated: #1B3A6B;
  --accent-orange: #FF6A00;
  --accent-gold: #FFD700;
  --text-primary: #F5F7FA;
  --text-secondary: #B9C6D9;
  --text-inverse: #0A1E3F;
  --border-line: #2D4A72;
  --live-green: #2ECC71;
  --warning-red: #E74C3C;
  --font-display: 'Archivo Black', 'Noto Sans SC Black', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', 'Consolas', monospace;
  --container-max: 1440px;
  --header-h: 72px;
  --radius: 4px;
  --shadow-strong: 0 8px 0 rgba(0, 0, 0, 0.25);
  --shadow-panel: 0 4px 0 rgba(0, 0, 0, 0.3);
  --ease: 200ms ease;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
  --space-7: 6rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 24px);
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--accent-orange);
  text-decoration: none;
  transition: color var(--ease), background-color var(--ease), border-color var(--ease), outline-color var(--ease);
}

a:hover {
  color: var(--accent-gold);
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  font-weight: 900;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 4.5rem);
}

h2 {
  font-size: clamp(1.4rem, 2.4vw, 2.4rem);
}

p {
  max-width: 72ch;
}

.mono {
  font-family: var(--font-mono);
}

.container {
  width: min(100% - 2rem, var(--container-max));
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 9999;
  background: var(--accent-orange);
  color: var(--text-inverse);
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  transform: translateY(-200%);
  transition: transform var(--ease);
}

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

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

::selection {
  background: rgba(255, 106, 0, 0.8);
  color: #fff;
}

/* ---------- 实时比分滚动条 ---------- */
.score-bar {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-line);
  padding: 0.375rem 0;
  position: relative;
  z-index: 100;
}

.score-bar__inner {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.score-bar__label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 900;
  color: var(--accent-orange);
  padding: 0.375rem 0.625rem;
  border: 1px solid var(--border-line);
  border-radius: var(--radius);
  background: #0a1e3f;
}

.score-bar__viewport {
  overflow: hidden;
  flex: 1;
  -webkit-mask-image: linear-gradient(to right, transparent, #000 6%, #000 94%, transparent);
  mask-image: linear-gradient(to right, transparent, #000 6%, #000 94%, transparent);
}

.score-bar__list {
  display: flex;
  gap: 2.5rem;
  width: max-content;
  animation: score-ticker 40s linear infinite;
  will-change: transform;
}

.score-bar:hover .score-bar__list {
  animation-play-state: paused;
}

.score-bar__list li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.score-bar__list li strong {
  color: var(--text-primary);
  font-weight: 600;
}

.score-bar__tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  padding: 0.125rem 0.375rem;
  border: 1px solid var(--border-line);
  border-radius: 2px;
  color: var(--text-secondary);
}

.score-bar__tag.odds {
  color: var(--accent-gold);
  border-color: rgba(255, 215, 0, 0.4);
}

.score-bar__tag.live-tag {
  color: var(--live-green);
  border-color: rgba(46, 204, 113, 0.4);
}

.score-bar__tag.hot {
  color: var(--accent-orange);
  border-color: rgba(255, 106, 0, 0.4);
}

@keyframes score-ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ---------- 头部 · 品牌与导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(10, 30, 63, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-line);
  height: var(--header-h);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 2rem;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.site-brand__mark {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.site-brand__dot {
  width: 10px;
  height: 10px;
  background: var(--accent-gold);
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(255, 215, 0, 0.6);
  animation: brand-pulse 2.4s ease-in-out infinite;
}

@keyframes brand-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.75; transform: scale(0.85); }
}

.desktop-nav__list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.desktop-nav__list a {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.625rem 0.9375rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
}

.desktop-nav__list a:hover {
  color: var(--text-primary);
  background: var(--bg-panel);
  border-color: var(--border-line);
}

.desktop-nav__list a[aria-current="page"] {
  color: var(--text-primary);
  background: var(--bg-panel);
  border-color: var(--accent-orange);
  box-shadow: inset 0 -2px 0 var(--accent-orange);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0.5rem;
  background: transparent;
  border: 1px solid var(--border-line);
  border-radius: var(--radius);
  cursor: pointer;
}

.nav-toggle:hover {
  background: var(--bg-panel);
}

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

.mobile-nav {
  display: none;
  position: relative;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-line);
}

.mobile-nav[data-open] {
  display: block;
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  width: min(100% - 2rem, var(--container-max));
  margin-inline: auto;
}

.mobile-nav__list a {
  display: block;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-line);
}

.mobile-nav__list a:hover {
  color: var(--text-primary);
  padding-left: 0.5rem;
}

.mobile-nav__list a[aria-current="page"] {
  color: var(--text-primary);
  padding-left: 0.5rem;
  background: linear-gradient(90deg, var(--accent-orange) 0 4px, transparent 4px);
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: #07162e;
  border-top: 4px solid var(--border-line);
  margin-top: var(--space-7);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: var(--space-5);
  padding-block: var(--space-6) var(--space-5);
}

.site-footer__logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.site-footer__claim {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 900;
  color: var(--accent-gold);
  letter-spacing: 0.06em;
  margin-bottom: 1.25rem;
}

.site-footer__trust {
  font-size: 0.875rem;
  color: var(--text-secondary);
  max-width: 40ch;
  line-height: 1.75;
}

.site-footer__heading {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-orange);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-line);
}

.site-footer__heading--sub {
  margin-top: 2rem;
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.site-footer__links a {
  display: inline-block;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  padding: 0.25rem 0;
}

.site-footer__links a:hover {
  color: var(--accent-gold);
  transform: translateX(3px);
}

.site-footer__contact-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.site-footer__contact-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-gold);
  margin-bottom: 0.125rem;
}

.site-footer__contact-value {
  color: var(--text-primary);
  font-size: 0.9375rem;
  word-break: break-all;
}

a.site-footer__contact-value:hover {
  color: var(--accent-orange);
}

.site-footer__contact-note {
  margin-top: 1.25rem;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  border-left: 3px solid var(--accent-orange);
  padding-left: 0.75rem;
}

.footer-ticker {
  border-block: 1px solid var(--border-line);
  background: rgba(18, 41, 79, 0.5);
  padding: 0.625rem 0;
}

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

.footer-ticker p {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.site-footer__bottom {
  background: #050d1c;
  padding: 1rem 0;
}

.site-footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.site-footer__bottom p {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* ---------- 通用组件 ---------- */
.page-shell {
  width: min(100% - 2rem, var(--container-max));
  margin-inline: auto;
  padding-top: var(--space-5);
  display: grid;
  grid-template-columns: minmax(0, 8fr);
  gap: var(--space-5);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

.breadcrumb a {
  color: var(--accent-orange);
}

.breadcrumb a:hover {
  color: var(--accent-gold);
}

.breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 0.5rem;
  color: var(--border-line);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--accent-orange);
  letter-spacing: 0.08em;
}

.section-label::before {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--accent-orange);
  display: inline-block;
}

.panel {
  background: var(--bg-panel);
  border: 2px solid var(--border-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-panel);
}

.terminal-row {
  display: grid;
  grid-template-columns: 3.5rem minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 0.875rem 1.125rem;
  border-bottom: 1px solid var(--border-line);
  background: rgba(10, 30, 63, 0.35);
  transition: background var(--ease), border-left-color var(--ease), transform var(--ease);
}

.terminal-row:last-child {
  border-bottom: 0;
}

.terminal-row:hover {
  background: var(--bg-elevated);
  border-left: 4px solid var(--accent-orange);
}

.terminal-row__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--accent-gold);
}

.terminal-row__name {
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.9375rem;
}

.terminal-row__meta {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.status-dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--text-secondary);
  flex-shrink: 0;
}

.status-dot--live {
  background: var(--live-green);
  box-shadow: 0 0 8px rgba(46, 204, 113, 0.6);
  animation: brand-pulse 1.6s ease-in-out infinite;
}

.status-dot--warn {
  background: var(--accent-orange);
}

.status-dot--error {
  background: var(--warning-red);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.9375rem;
  line-height: 1;
  padding: 0.875rem 1.5rem;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}

.btn--primary {
  background: var(--accent-orange);
  color: var(--text-inverse);
  box-shadow: 0 4px 0 #c14e00;
}

.btn--primary:hover {
  background: #ff7d24;
  color: var(--text-inverse);
  transform: translateY(-2px);
  box-shadow: 0 6px 0 #c14e00;
}

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

.btn--ghost:hover {
  background: var(--bg-panel);
  border-color: var(--accent-orange);
  color: var(--text-primary);
}

.img-frame {
  position: relative;
  background: var(--bg-panel);
  border: 2px solid var(--border-line);
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  box-shadow: var(--shadow-panel);
}

.img-frame::after {
  content: attr(data-placeholder);
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-secondary);
  background-image: linear-gradient(45deg, rgba(255, 255, 255, 0.02) 25%, transparent 25%, transparent 75%, rgba(255, 255, 255, 0.02) 75%),
    linear-gradient(45deg, rgba(255, 255, 255, 0.02) 25%, transparent 25%, transparent 75%, rgba(255, 255, 255, 0.02) 75%);
  background-size: 24px 24px;
  background-position: 0 0, 12px 12px;
}

.page-header-block {
  padding: var(--space-5) 0 var(--space-4);
  border-bottom: 1px solid var(--border-line);
  margin-bottom: var(--space-4);
  position: relative;
}

.page-header-block::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 72px;
  height: 4px;
  background: var(--accent-orange);
}

.page-header-block__desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 60ch;
  margin-top: 1rem;
}

.docs-grid {
  display: grid;
  grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
  gap: var(--space-4);
  align-items: start;
}

.side-note {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-secondary);
  border-left: 3px solid var(--accent-gold);
  padding-left: 1rem;
  max-width: 36ch;
  line-height: 1.6;
}

.side-note strong {
  color: var(--accent-gold);
  font-weight: 700;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.filter-group button {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: 0.5rem 0.875rem;
  background: var(--bg-panel);
  border: 1px solid var(--border-line);
  border-radius: var(--radius);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--ease);
}

.filter-group button:hover,
.filter-group button[aria-pressed="true"] {
  color: var(--accent-orange);
  border-color: var(--accent-orange);
  background: rgba(255, 106, 0, 0.1);
}

[hidden] {
  display: none !important;
}

/* ---------- 滚动进度条与返回顶部 ---------- */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 100%;
  z-index: 500;
  pointer-events: none;
  background: transparent;
}

.progress-bar__inner {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-orange), var(--accent-gold));
  transition: width 100ms ease;
}

.back-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 400;
  width: 46px;
  height: 46px;
  display: none;
  align-items: center;
  justify-content: center;
  background: var(--accent-orange);
  color: var(--text-inverse);
  border: 2px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-panel);
  transition: transform var(--ease), background var(--ease);
}

.back-top.is-visible {
  display: flex;
}

.back-top:hover {
  background: var(--accent-gold);
  color: var(--text-inverse);
  transform: translateY(-3px);
}

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .desktop-nav {
    display: none;
  }

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

  .site-header {
    height: auto;
  }

  .site-header__inner {
    min-height: var(--header-h);
  }

  .mobile-nav {
    display: none;
  }

  .mobile-nav[data-open] {
    display: block;
  }

  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer__brand {
    grid-column: 1 / -1;
  }

  .page-header-block {
    padding-top: var(--space-4);
  }

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

@media (max-width: 640px) {
  :root {
    --header-h: 64px;
  }

  .score-bar__label {
    font-size: 0.6875rem;
    padding: 0.25rem 0.5rem;
  }

  .score-bar {
    padding: 0.25rem 0;
  }

  .site-brand__mark {
    font-size: 1.125rem;
  }

  .site-brand__dot {
    width: 8px;
    height: 8px;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    padding-block: var(--space-4) var(--space-4);
  }

  .site-footer__brand {
    grid-column: auto;
  }

  .footer-ticker__inner,
  .site-footer__bottom-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .terminal-row {
    grid-template-columns: 2.5rem minmax(0, 1fr);
  }

  .terminal-row__meta {
    grid-column: 2 / -1;
  }

  .page-shell {
    padding-top: var(--space-4);
  }
}

/* ---------- 动效 · 减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .score-bar__list {
    animation: none;
    overflow-x: auto;
  }
}