/* ============================================
   AYX 爱游戏体育 — 共享样式 /assets/site.css
   ============================================ */

/* ---------- 1. Reset & Variables ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  color-scheme: dark;
  --c-bg: #0A0A0A;
  --c-dark: #1E1E1E;
  --c-border: #333333;
  --c-muted: #999999;
  --c-light: #F5F5F5;
  --c-gold: #C9A227;
  --c-gold-bright: #E0C044;
  --c-blue: #00E0FF;
  --c-green: #39FF14;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-head: "Bahnschrift", "DIN Alternate", "Arial Narrow", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", "Roboto Mono", "Menlo", "Consolas", monospace;
  --header-h: 72px;
  --container: 1240px;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-light);
  background-color: var(--c-bg);
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 900;
  line-height: 1.2;
  color: var(--c-light);
  letter-spacing: 0.02em;
}

h1 { font-size: 48px; }
h2 { font-size: 32px; }
h3 { font-size: 24px; }
h4 { font-size: 20px; }

p { margin-bottom: 1em; }

a {
  color: var(--c-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

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

::selection { background: var(--c-gold); color: var(--c-bg); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--c-bg); }
::-webkit-scrollbar-thumb { background: var(--c-border); border: 2px solid var(--c-bg); }
::-webkit-scrollbar-thumb:hover { background: var(--c-gold); }

/* ---------- 2. Container & Main ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

main {
  flex: 1 0 auto;
  width: 100%;
}

/* ---------- 3. Utilities ---------- */
.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: -120px;
  left: 16px;
  z-index: 200;
  padding: 10px 20px;
  background: var(--c-gold);
  color: var(--c-bg);
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
  transition: top 0.2s ease;
}

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

.skip-link:hover { color: var(--c-bg); }

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

/* ---------- 4. Buttons ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--c-light);
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}

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

.btn--gold {
  color: var(--c-bg);
  border: 0;
  isolation: isolate;
}

.btn--gold::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-color: var(--c-gold);
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
  transition: background-color 0.2s ease;
}

.btn--gold:hover { color: var(--c-bg); }
.btn--gold:hover::before { background-color: var(--c-gold-bright); }

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

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

/* ---------- 5. Site Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background:
    linear-gradient(120deg, rgba(201,162,39,0.10) 0%, transparent 34%),
    rgba(10,10,10,0.88);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--c-border);
  transition: box-shadow 0.3s ease;
}

.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  pointer-events: none;
  background: linear-gradient(90deg,
    var(--c-gold) 0%, var(--c-gold) 18%,
    transparent 18%, transparent 22%,
    var(--c-blue) 22%, var(--c-blue) 26%,
    transparent 26% 100%);
  opacity: 0.85;
}

.site-header.is-scrolled {
  box-shadow: 0 10px 28px rgba(0,0,0,0.5);
}

.site-header__inner {
  display: flex;
  align-items: center;
  min-height: var(--header-h);
  gap: 12px;
}

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

.site-brand:hover { color: var(--c-light); }

.site-brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 28px;
  flex-shrink: 0;
  background: var(--c-gold);
  color: var(--c-bg);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  clip-path: polygon(6px 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}

.site-brand__text {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

/* ---------- 6. Site Nav ---------- */
.site-nav {
  margin-left: auto;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
}

.site-nav__item {
  display: block;
}

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 10px 12px;
  color: var(--c-light);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.03em;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 0;
  height: 3px;
  background: var(--c-gold);
  transform: scaleX(0) skewX(-30deg);
  transform-origin: left center;
  transition: transform 0.25s ease;
}

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

.site-nav__link:hover::after,
.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1) skewX(-30deg);
}

.site-nav__index {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  color: var(--c-gold);
  letter-spacing: 0.06em;
}

.site-nav-toggle {
  display: none;
  position: relative;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--c-border);
  cursor: pointer;
  transition: border-color 0.2s ease;
}

.site-nav-toggle:hover { border-color: var(--c-gold); }

.site-nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: var(--c-light);
  transition: transform 0.25s ease, opacity 0.25s ease, background-color 0.25s ease;
}

.site-nav-toggle:hover .site-nav-toggle__bar { background: var(--c-gold); }

.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.site-header__cta {
  flex-shrink: 0;
  padding: 8px 18px;
  font-size: 14px;
}

.site-header__progress {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  pointer-events: none;
  background: linear-gradient(90deg, var(--c-gold), var(--c-blue));
  transform: scaleX(0);
  transform-origin: left center;
}

/* ---------- 7. Site Footer ---------- */
.site-footer {
  margin-top: auto;
  background: var(--c-dark);
  border-top: 1px solid var(--c-border);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1.3fr;
  gap: 48px 40px;
  padding-top: 72px;
  padding-bottom: 40px;
}

.site-footer__brand-block {
  max-width: 40em;
}

.site-footer .site-brand { margin-bottom: 12px; }

.site-brand--footer .site-brand__text { font-size: 22px; }

.site-footer__statement {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
}

.site-footer__note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-size: 13px;
  color: var(--c-muted);
}

.site-footer__note::before {
  content: "";
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  background: var(--c-green);
  box-shadow: 0 0 8px rgba(57,255,20,0.7);
}

.site-footer__col {
  min-width: 0;
}

.site-footer__heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-border);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-footer__index {
  display: inline-flex;
  padding: 1px 6px;
  border: 1px solid var(--c-border);
  color: var(--c-gold);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.site-footer__list {
  list-style: none;
  display: grid;
  gap: 10px;
}

.site-footer__list a {
  color: #B8B8B8;
  font-size: 14px;
  transition: color 0.2s ease;
}

.site-footer__list a:hover { color: var(--c-gold); }

.site-footer__list--contact {
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.8;
}

.site-footer__bottom {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  margin-top: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--c-border);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-muted);
}

/* ---------- 8. Page Head & Section ---------- */
.page-head {
  padding: 56px 0 24px;
  margin-bottom: 48px;
  border-bottom: 1px solid var(--c-border);
}

.page-head__index {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-gold);
}

.page-head__title { font-size: 48px; }

.page-head__desc {
  margin-top: 10px;
  max-width: 42em;
  font-size: 16px;
  color: var(--c-muted);
}

.section { padding: 72px 0; }
.section--tight { padding: 48px 0; }

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}

.section-index {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.section-title { font-size: 32px; }

.section-sub {
  max-width: 36em;
  font-size: 14px;
  color: var(--c-muted);
}

/* ---------- 9. Grid, Card, Tags, Stats ---------- */
.grid {
  display: grid;
  gap: 24px;
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  position: relative;
  padding: 28px;
  background: var(--c-dark);
  border: 1px solid rgba(255,255,255,0.05);
}

.card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--c-gold) 0%, rgba(201,162,39,0) 80%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover::after { opacity: 1; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: rgba(201,162,39,0.12);
  border-left: 2px solid var(--c-gold);
  color: var(--c-gold);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.tag--blue {
  background: rgba(0,224,255,0.08);
  border-left-color: var(--c-blue);
  color: var(--c-blue);
}

.tag--green {
  background: rgba(57,255,20,0.08);
  border-left-color: var(--c-green);
  color: var(--c-green);
}

.stat {
  font-family: var(--font-head);
  font-size: 40px;
  font-weight: 900;
  line-height: 1;
  color: var(--c-light);
  font-variant-numeric: tabular-nums;
}

.stat--gold { color: var(--c-gold); }
.stat--blue { color: var(--c-blue); }
.stat--green { color: var(--c-green); }

/* ---------- 10. Media Container ---------- */
.media {
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  background:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.035) 0, rgba(255,255,255,0.035) 1px, transparent 1px, transparent 10px),
    var(--c-dark);
}

.media--portrait { aspect-ratio: 4 / 5; }
.media--wide { aspect-ratio: 21 / 9; }

.media__label {
  z-index: 1;
  padding: 6px 12px;
  background: rgba(10,10,10,0.65);
  border: 1px solid var(--c-border);
  color: var(--c-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 11. Table & Breadcrumb ---------- */
.table-wrap {
  overflow-x: auto;
  background: var(--c-dark);
  border: 1px solid var(--c-border);
}

.table-wrap table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.table-wrap th {
  padding: 14px 16px;
  text-align: left;
  background: rgba(201,162,39,0.08);
  border-bottom: 1px solid var(--c-border);
  color: var(--c-gold);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.table-wrap td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  color: var(--c-light);
}

.table-wrap tr:last-child td { border-bottom: 0; }
.table-wrap tr:hover td { background: rgba(255,255,255,0.02); }

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 16px 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-muted);
}

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

.breadcrumb a { color: var(--c-muted); }
.breadcrumb a:hover { color: var(--c-gold); }
.breadcrumb li[aria-current="page"] { color: var(--c-light); }

/* ---------- 12. Responsive ---------- */
@media (max-width: 1023px) {
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-left: 0;
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    background: rgba(10,10,10,0.98);
    border-bottom: 1px solid var(--c-border);
    box-shadow: 0 24px 40px rgba(0,0,0,0.45);
    transition: max-height 0.3s ease, visibility 0s linear 0.3s;
  }

  .site-nav[data-open] {
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    visibility: visible;
    transition: max-height 0.3s ease, visibility 0s;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 24px 16px;
  }

  .site-nav__item { width: 100%; }

  .site-nav__link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 8px;
    font-size: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }

  .site-nav__link::after { display: none; }

  .site-nav__link[aria-current="page"] {
    background: linear-gradient(90deg, rgba(201,162,39,0.16), transparent);
    color: var(--c-gold);
  }

  .site-nav-toggle { display: block; }
  .site-header__cta { margin-left: auto; }

  .grid--3,
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

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

@media (max-width: 767px) {
  h1 { font-size: 36px; }
  h2 { font-size: 28px; }

  .section { padding: 48px 0; }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .section-title { font-size: 26px; }

  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }

  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-top: 48px;
  }

  .site-footer__bottom {
    flex-direction: column;
    text-align: center;
  }

  .page-head {
    padding: 36px 0 20px;
    margin-bottom: 32px;
  }

  .page-head__title { font-size: 36px; }
}

@media (max-width: 480px) {
  .site-header__inner.container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .site-header__inner { gap: 10px; }

  .site-brand__text { font-size: 17px; }
  .site-brand__mark { width: 38px; height: 24px; font-size: 11px; }

  .site-header__cta {
    padding: 6px 12px;
    font-size: 13px;
  }

  .btn { padding: 8px 16px; }
}

/* ---------- 13. Reduced Motion ---------- */
@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;
    transition-delay: 0ms !important;
  }
}