/* ==========================================================================
   爱游戏赛场 · 共享样式 /assets/site.css
   夜场记分屏：深墨蓝暗场 + 左侧轨道导航 + 霓虹状态色
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  background: #0B1B2B;
}

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

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

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

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

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

input, textarea, select { font: inherit; }

/* ---------- 2. Tokens ---------- */
:root {
  /* 色彩 */
  --c-ink:      #0B1B2B;
  --c-ink-2:    #0E2A2E;
  --c-ink-3:    #1A1230;
  --c-wine:     #6B1F2A;
  --c-orange:   #FF5A1F;
  --c-cyan:     #00E5FF;
  --c-lime:     #C6FF00;
  --c-paper:    #F4F7FA;
  --c-muted:    #8FA3B8;
  --c-line:     #1E2A36;

  /* 字体 */
  --font-display: "Arial Narrow", "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-body:    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono:    ui-monospace, "SFMono-Regular", "Roboto Mono", Menlo, Consolas, "Courier New", monospace;
  --font-serif:   "Songti SC", "Source Han Serif SC", "Noto Serif SC", Georgia, "Times New Roman", serif;

  /* 尺寸 */
  --rail-w:  272px;
  --topbar-h: 64px;
  --gutter:  clamp(18px, 4.6vw, 56px);
  --maxw:    1240px;

  /* 动效 */
  --ease: cubic-bezier(.22, .61, .36, 1);
  --dur:  .28s;
}

/* ---------- 3. Base ---------- */
body {
  position: relative;
  min-height: 100vh;
  background: var(--c-ink);
  color: var(--c-paper);
  font-family: var(--font-body);
  font-size: clamp(15px, 1.02vw, 17px);
  line-height: 1.75;
  font-weight: 400;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 暗场光晕 + 精密网格底纹 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(720px 460px at 84% -10%, rgba(255, 90, 31, .16), transparent 66%),
    radial-gradient(640px 520px at 2% 108%, rgba(0, 229, 255, .12), transparent 68%),
    repeating-linear-gradient(0deg, rgba(30, 42, 54, .55) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(90deg, rgba(30, 42, 54, .55) 0 1px, transparent 1px 48px);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--c-paper);
  font-stretch: 87%;
}

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

/* ---------- 4. 通用布局 ---------- */
#main-content {
  position: relative;
  z-index: 1;
  display: block;
}

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

.section { padding-block: clamp(40px, 6vw, 88px); }
.section--deep   { background: var(--c-ink-2); }
.section--violet { background: var(--c-ink-3); }
.section--wine   { background: var(--c-wine); }

.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); }

/* ---------- 5. 排版工具 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.eyebrow::before {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-orange);
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}

/* ---------- 6. 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.6;
  letter-spacing: .14em;
  text-transform: uppercase;
  white-space: nowrap;
}
.tag--time { color: var(--c-cyan); }
.tag--key  { color: var(--c-lime); }
.tag--live { color: var(--c-orange); }

/* ---------- 7. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .05em;
  line-height: 1.2;
  text-align: center;
  transition: background var(--dur) var(--ease),
              color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}

.btn--primary {
  background: var(--c-orange);
  color: var(--c-ink);
  box-shadow: 0 0 0 0 rgba(255, 90, 31, 0);
}
.btn--primary:hover {
  background: #FF7A45;
  box-shadow: 0 0 0 3px rgba(255, 90, 31, .22);
}
.btn--primary:active { transform: translateY(1px); }

.btn--ghost {
  background: rgba(244, 247, 250, .03);
  border-color: var(--c-line);
  color: var(--c-paper);
}
.btn--ghost:hover {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
}

/* ---------- 8. 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--c-muted);
}
.breadcrumb li { display: flex; align-items: center; }
.breadcrumb li + li::before {
  content: "/";
  margin: 0 8px;
  color: var(--c-line);
}
.breadcrumb a { color: var(--c-muted); transition: color var(--dur) var(--ease); }
.breadcrumb a:hover { color: var(--c-cyan); }
.breadcrumb [aria-current="page"] { color: var(--c-paper); }

/* ---------- 9. 图片容器基础规则 ---------- */
.media {
  position: relative;
  overflow: hidden;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  background:
    linear-gradient(135deg, rgba(0, 229, 255, .08), rgba(255, 90, 31, .08)),
    var(--c-line);
  border: 1px solid var(--c-line);
}
.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease);
}
.media--wide     { aspect-ratio: 21 / 9; }
.media--square   { aspect-ratio: 1 / 1; }
.media--portrait { aspect-ratio: 3 / 4; }

.media--shade::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(11, 27, 43, 0) 40%, rgba(11, 27, 43, .82) 100%);
}

.media-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--c-muted);
}

/* ---------- 10. Skip link ---------- */
.skip-link {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 300;
  padding: 12px 20px;
  background: var(--c-lime);
  color: var(--c-ink);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .04em;
  transform: translateY(-130%);
  transition: transform var(--dur) var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible { transform: translateY(0); }

/* ---------- 11. Header / 左侧轨道 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 50;
  display: flex;
  flex-direction: column;
  width: var(--rail-w);
  height: 100vh;
  height: 100dvh;
  padding: 22px 0 18px;
  background:
    linear-gradient(180deg, #0A1929 0%, #0B1B2B 55%, #0D2030 100%);
  border-right: 1px solid var(--c-line);
  box-shadow: inset -1px 0 0 rgba(0, 229, 255, .12);
}

/* 品牌 */
.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 20px 18px;
  border-bottom: 1px solid var(--c-line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  flex: none;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: var(--c-orange);
  color: var(--c-ink);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  line-height: 1;
  letter-spacing: 0;
  transform: skewX(-8deg);
}
.brand-mark > * { transform: skewX(8deg); }

.brand-text { display: flex; flex-direction: column; gap: 1px; min-width: 0; }

.brand-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: -.01em;
  color: var(--c-paper);
  white-space: nowrap;
}

.brand-meta {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-cyan);
  opacity: .8;
  white-space: nowrap;
}

/* 移动端切换按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 13px;
  border: 1px solid var(--c-line);
  background: rgba(11, 27, 43, .6);
  color: var(--c-paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.nav-toggle:hover { border-color: var(--c-cyan); color: var(--c-cyan); }

.toggle-bars { display: grid; gap: 4px; width: 18px; }
.toggle-bars span {
  display: block;
  height: 2px;
  width: 100%;
  background: currentColor;
  transition: transform var(--dur) var(--ease), opacity .18s linear, width var(--dur) var(--ease);
}
.toggle-bars span:nth-child(2) { width: 70%; }

.site-header[data-open] .toggle-bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.site-header[data-open] .toggle-bars span:nth-child(2) { opacity: 0; }
.site-header[data-open] .toggle-bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.toggle-label { white-space: nowrap; }

/* 导航 */
.site-nav {
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 14px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--c-line) transparent;
}
.site-nav::-webkit-scrollbar { width: 4px; }
.site-nav::-webkit-scrollbar-thumb { background: var(--c-line); }

.nav-list { display: flex; flex-direction: column; }

.nav-item { display: block; }

.nav-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 20px;
  border-left: 3px solid transparent;
  color: var(--c-muted);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.4;
  letter-spacing: .01em;
  transition: color var(--dur) var(--ease),
              background var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}
.nav-link:hover {
  color: var(--c-paper);
  background: rgba(0, 229, 255, .06);
}
.nav-link:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: -3px;
}

.nav-index {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--c-cyan);
  opacity: .5;
  transition: opacity var(--dur) var(--ease), color var(--dur) var(--ease);
}

.nav-text { display: block; }

.nav-link[aria-current="page"] {
  color: var(--c-paper);
  border-left-color: var(--c-orange);
  background: linear-gradient(90deg, rgba(255, 90, 31, .18), rgba(255, 90, 31, 0) 78%);
}
.nav-link[aria-current="page"] .nav-index { color: var(--c-lime); opacity: 1; }

/* 轨道底部状态带 */
.rail-utility {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 20px 0;
  border-top: 1px solid var(--c-line);
}

.utility-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--c-cyan);
}

.utility-dot {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-lime);
  animation: statusPulse 2.6s ease-out infinite;
}

.utility-count {
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 1.5;
  color: var(--c-muted);
}
.utility-count strong {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-lime);
  font-weight: 700;
}

.utility-cta {
  width: 100%;
  margin-top: 2px;
  padding: 11px 14px;
  font-size: 13px;
}

/* 滚动进度条 */
.rail-progress {
  position: fixed;
  top: 0;
  left: calc(var(--rail-w) - 3px);
  width: 3px;
  height: 0;
  z-index: 60;
  pointer-events: none;
  background: linear-gradient(180deg, var(--c-orange) 0%, var(--c-cyan) 100%);
  box-shadow: 0 0 12px rgba(0, 229, 255, .45);
}

@keyframes statusPulse {
  0%   { box-shadow: 0 0 0 0 rgba(198, 255, 0, .55); }
  70%  { box-shadow: 0 0 0 7px rgba(198, 255, 0, 0); }
  100% { box-shadow: 0 0 0 0 rgba(198, 255, 0, 0); }
}

/* ---------- 12. Footer ---------- */
.site-footer {
  position: relative;
  z-index: 1;
  background: linear-gradient(180deg, #0A1522 0%, #081220 100%);
  border-top: 1px solid var(--c-line);
  padding: clamp(34px, 5vw, 68px) var(--gutter) 26px;
}

.footer-inner {
  max-width: var(--maxw);
  margin-inline: auto;
}

.footer-masthead {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px 24px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--c-line);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.footer-brand-mark {
  flex: none;
  width: 14px;
  height: 14px;
  background: var(--c-orange);
  transform: skewX(-10deg);
}

.footer-brand-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3vw, 32px);
  letter-spacing: -.02em;
  line-height: 1;
  color: var(--c-paper);
}

.footer-tagline {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-cyan);
  opacity: .85;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 48px);
  padding: clamp(26px, 3.4vw, 42px) 0;
}

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

.footer-heading {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.footer-list { display: grid; gap: 8px; }

.footer-list a {
  display: inline-block;
  padding: 2px 0;
  border-bottom: 1px solid transparent;
  font-size: 14px;
  color: var(--c-paper);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.footer-list a:hover { color: var(--c-cyan); border-bottom-color: var(--c-cyan); }

.footer-address {
  display: grid;
  gap: 2px;
  font-style: normal;
  font-size: 14px;
  line-height: 1.6;
}

.footer-address-label {
  margin-top: 9px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-muted);
}
.footer-address-label:first-child { margin-top: 0; }

.footer-address-value {
  color: var(--c-paper);
  overflow-wrap: anywhere;
}
.footer-address-value--mono {
  font-family: var(--font-mono);
  letter-spacing: .05em;
}

.footer-note {
  margin-bottom: 14px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--c-muted);
}

.footer-cta { width: 100%; padding: 11px 16px; font-size: 13px; }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  padding-top: 20px;
  border-top: 1px solid var(--c-line);
}

.footer-legal-item {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--c-muted);
}

/* ---------- 13. 显现 ---------- */
.js-ready [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .55s var(--ease), transform .55s var(--ease);
  will-change: opacity, transform;
}
.js-ready [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* ---------- 14. 响应式 ---------- */
@media (min-width: 1024px) {
  body { padding-left: var(--rail-w); }
}

@media (max-width: 1023px) {
  body {
    padding-left: 0;
    padding-top: var(--topbar-h);
  }

  body.nav-open { overflow: hidden; }

  body::before {
    background:
      radial-gradient(520px 340px at 88% -6%, rgba(255, 90, 31, .14), transparent 68%),
      repeating-linear-gradient(0deg, rgba(30, 42, 54, .5) 0 1px, transparent 1px 44px),
      repeating-linear-gradient(90deg, rgba(30, 42, 54, .5) 0 1px, transparent 1px 44px);
  }

  .site-header {
    flex-direction: row;
    align-items: center;
    width: 100%;
    height: var(--topbar-h);
    padding: 0 14px;
    border-right: 0;
    border-bottom: 1px solid var(--c-line);
    background: #0A1725;
    box-shadow: 0 1px 0 rgba(0, 229, 255, .12);
  }

  .brand-row {
    flex: 1 1 auto;
    padding: 0;
    border-bottom: 0;
  }

  .brand-mark { width: 32px; height: 32px; font-size: 17px; }
  .brand-name { font-size: 16px; }
  .brand-meta { font-size: 8px; letter-spacing: .16em; }

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

  .site-nav {
    position: fixed;
    top: var(--topbar-h);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 48;
    padding: 16px 0 116px;
    background: linear-gradient(180deg, #0B1B2B 0%, #09141F 100%);
    border-top: 1px solid var(--c-line);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity var(--dur) var(--ease),
                transform var(--dur) var(--ease),
                visibility var(--dur) linear;
  }

  .site-header[data-open] .site-nav {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav-link {
    padding: 15px 22px;
    font-size: 18px;
  }

  .rail-utility {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 49;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 14px;
    background: #09141F;
    border-top: 1px solid var(--c-line);
    transform: translateY(115%);
    visibility: hidden;
    transition: transform var(--dur) var(--ease), visibility var(--dur) linear;
  }

  .site-header[data-open] .rail-utility {
    transform: none;
    visibility: visible;
  }

  .rail-utility .utility-count { display: none; }
  .rail-utility .utility-cta { width: auto; flex: none; padding: 10px 16px; }

  .rail-progress { display: none; }
}

@media (max-width: 419px) {
  .brand-meta { display: none; }
  .utility-badge { font-size: 10px; letter-spacing: .04em; }
  .rail-utility .utility-cta { padding: 9px 12px; font-size: 12px; }
}

@media (min-width: 720px) {
  .footer-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 1100px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1.35fr 1fr; }
}

/* ---------- 15. 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  .utility-dot { animation: none; box-shadow: 0 0 0 3px rgba(198, 255, 0, .25); }

  .js-ready [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }

  .media img { transition: none; }
}