/* ==========================================================================
   皇冠赛场 · 共享 Site Kit
   夜场战术室 / 记分牌 / 粗野主义硬阴影
   ========================================================================== */

:root {
  /* 色彩体系 */
  --ink: #0B1F17;          /* 夜场墨绿 */
  --ink-deep: #04100A;     /* 墨黑线 */
  --pitch: #1E5C3A;        /* 草皮绿 */
  --pitch-2: #2E7D4F;      /* 草皮浅阶 */
  --gold: #C8A44A;         /* 记分牌金 */
  --neon: #E4FF4A;         /* 荧光黄 */
  --brick: #8C2F2F;        /* 暗红 */
  --chalk: #F2F5F0;        /* 冷白 */
  --mist: #9DB3A6;         /* 雾绿灰 */
  --white: #FFFFFF;        /* 纯白 */

  /* 字体族 */
  --font-display: "Haettenschweiler", "Arial Narrow Bold", "Impact",
                  "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC",
                "SimSun", Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, "SFMono-Regular", "IBM Plex Mono", Menlo,
               Consolas, "Liberation Mono", monospace;
  --font-body: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", "Heiti SC", sans-serif;

  /* 度量 */
  --wrap: 1240px;
  --gutter: 24px;
  --hard: 8px;
  --ease: 160ms ease;
}

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

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

body {
  margin: 0;
  background: var(--ink);
  color: var(--chalk);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.5em;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: 0.01em;
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

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

button { font: inherit; color: inherit; }

a { color: inherit; }

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

[id="main-content"] { scroll-margin-top: 96px; }

:where(a, button, summary, [tabindex]):focus-visible {
  outline: 3px solid var(--neon);
  outline-offset: 3px;
}

/* ---------- 2. 通用布局 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(40px, 6vw, 84px); }

.section--light {
  background: var(--chalk);
  color: var(--ink);
}

.section--pitch {
  background: var(--pitch);
  color: var(--chalk);
}

.section--light :focus-visible { outline-color: var(--brick); }
.tile :focus-visible { outline-color: var(--brick); }

.grid {
  display: grid;
  gap: var(--gutter);
  grid-template-columns: minmax(0, 1fr);
}
.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)); }

.stack > * + * { margin-top: var(--stack-gap, 16px); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- 3. 排版 ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(44px, 7vw, 96px);
  line-height: 0.94;
  letter-spacing: 0.01em;
  margin: 0;
}

.headline {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.35;
  margin: 0 0 0.6em;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  line-height: 1.6;
  color: var(--gold);
  text-transform: uppercase;
}

.section--light .eyebrow { color: var(--brick); }

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
}

.prose {
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.78;
}
.prose p { margin: 0 0 1.1em; }
.prose h2 {
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.4vw, 27px);
  margin: 1.9em 0 0.55em;
}
.prose h3 {
  font-size: 19px;
  margin: 1.6em 0 0.45em;
}
.prose ul,
.prose ol {
  margin: 0 0 1.2em;
  padding-left: 1.4em;
  list-style: disc;
}
.prose ol { list-style: decimal; }
.prose li { margin-bottom: 0.4em; }
.prose strong { color: var(--gold); font-weight: 700; }
.section--light .prose strong { color: var(--brick); }

.link {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color var(--ease);
}
.link:hover { color: var(--neon); }
.section--light .link { color: var(--pitch); }
.section--light .link:hover { color: var(--brick); }

/* ---------- 4. 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 24px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.2;
  text-decoration: none;
  color: var(--ink);
  background: var(--neon);
  border: 2px solid var(--ink-deep);
  box-shadow: 5px 5px 0 var(--gold);
  cursor: pointer;
  transition: transform var(--ease), box-shadow var(--ease),
              background-color var(--ease), color var(--ease),
              border-color var(--ease);
}
.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 var(--gold);
}
.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--gold);
}

.btn--gold {
  background: var(--gold);
  color: var(--ink);
  box-shadow: 5px 5px 0 var(--ink-deep);
}
.btn--gold:hover { box-shadow: 8px 8px 0 var(--ink-deep); }

.btn--ghost {
  background: transparent;
  color: var(--chalk);
  border-color: var(--chalk);
  box-shadow: 5px 5px 0 rgba(242, 245, 240, 0.22);
}
.btn--ghost:hover {
  background: var(--chalk);
  color: var(--ink);
  box-shadow: 8px 8px 0 var(--gold);
}

/* ---------- 5. Chip 筛选条 ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--chalk);
  background: transparent;
  border: 2px solid rgba(157, 179, 166, 0.55);
  cursor: pointer;
  transition: color var(--ease), border-color var(--ease),
              background-color var(--ease), box-shadow var(--ease);
}
.chip:hover {
  color: var(--gold);
  border-color: var(--gold);
}
.chip[aria-pressed="true"] {
  color: var(--ink);
  background: var(--gold);
  border-color: var(--ink-deep);
  box-shadow: 3px 3px 0 var(--ink-deep);
}

/* ---------- 6. 卡片 ---------- */
.tile {
  position: relative;
  display: block;
  padding: 24px;
  background: var(--white);
  color: var(--ink);
  border: 2px solid var(--ink-deep);
  box-shadow: var(--hard) var(--hard) 0 var(--gold);
  text-decoration: none;
  transition: transform var(--ease), box-shadow var(--ease),
              border-color var(--ease), background-color var(--ease);
}
.tile:hover {
  transform: translateY(-3px);
  border-color: var(--gold);
  box-shadow: 11px 11px 0 var(--gold);
}
.tile h3,
.tile h4 { color: var(--ink); }

.tile--dark {
  background: var(--pitch);
  color: var(--chalk);
  border-color: rgba(200, 164, 74, 0.55);
  box-shadow: var(--hard) var(--hard) 0 rgba(200, 164, 74, 0.45);
}
.tile--dark h3,
.tile--dark h4 { color: var(--chalk); }
.tile--dark:hover {
  border-color: var(--gold);
  box-shadow: 11px 11px 0 var(--gold);
}

/* ---------- 7. 图片 / 图形容器 ---------- */
.media {
  position: relative;
  overflow: hidden;
  border: 2px solid var(--ink-deep);
  background: var(--pitch);
  aspect-ratio: 16 / 10;
}
.media > img,
.media > svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 4 / 5; }

.media-caption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--mist);
}
.section--light .media-caption { color: #4C6A5B; }

.pitch-grid {
  background-color: var(--pitch);
  background-image:
    linear-gradient(to right, rgba(242, 245, 240, 0.13) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(242, 245, 240, 0.13) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ---------- 8. 面包屑 ---------- */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist);
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}
.breadcrumb li + li::before {
  content: "/";
  color: var(--pitch-2);
}
.breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--ease);
}
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb [aria-current="page"] { color: var(--chalk); }

/* ---------- 9. 跳至主要内容 ---------- */
.skip-link {
  position: absolute;
  left: 12px;
  top: -120px;
  z-index: 200;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 20px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  color: var(--ink);
  background: var(--neon);
  border: 2px solid var(--ink-deep);
  box-shadow: 4px 4px 0 var(--ink-deep);
  transition: top var(--ease);
}
.skip-link:focus { top: 12px; }

/* ---------- 10. 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--ink);
  border-bottom: 2px solid var(--ink-deep);
  box-shadow: inset 0 -1px 0 rgba(200, 164, 74, 0.32);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  width: 100%;
  max-width: var(--wrap);
  min-height: 76px;
  margin-inline: auto;
  padding: 12px var(--gutter);
}

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

.brand-sigil {
  position: relative;
  display: block;
  width: 34px;
  height: 34px;
  background: var(--gold);
  border: 2px solid var(--ink-deep);
  box-shadow: 4px 4px 0 var(--neon);
  transition: box-shadow var(--ease), background-color var(--ease);
}
.brand-sigil::after {
  content: "";
  position: absolute;
  inset: 6px;
  border: 2px solid var(--ink);
}
.brand:hover .brand-sigil {
  background: var(--neon);
  box-shadow: 4px 4px 0 var(--gold);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand-mark {
  font-family: var(--font-display);
  font-size: 23px;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: var(--chalk);
  transition: color var(--ease);
}
.brand:hover .brand-mark { color: var(--neon); }

.brand-tagline {
  margin-top: 5px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--gold);
}

.header-rule {
  flex: 1 1 auto;
  min-width: 16px;
  height: 1px;
  background: var(--gold);
  opacity: 0.5;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  min-height: 44px;
  padding: 0 14px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--chalk);
  background: var(--ink);
  border: 2px solid var(--gold);
  box-shadow: 4px 4px 0 var(--ink-deep);
  cursor: pointer;
  transition: background-color var(--ease), color var(--ease),
              box-shadow var(--ease), transform var(--ease);
}
.nav-toggle:hover {
  background: var(--gold);
  color: var(--ink);
  transform: translate(-1px, -1px);
  box-shadow: 6px 6px 0 var(--ink-deep);
}
.nav-toggle[aria-expanded="true"] {
  background: var(--gold);
  color: var(--ink);
}

.nav-toggle-bars {
  display: grid;
  gap: 3px;
  width: 18px;
}
.nav-toggle-bars span {
  display: block;
  height: 2px;
  background: currentColor;
}
.nav-toggle-label {
  display: inline-block;
  line-height: 1;
}

.site-nav {
  flex: 0 0 auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 13px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--chalk);
  text-decoration: none;
  border-bottom: 3px solid transparent;
  transition: color var(--ease), border-color var(--ease),
              background-color var(--ease);
}
.nav-list a:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
  background: rgba(200, 164, 74, 0.1);
}
.nav-list a[aria-current="page"] {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

/* ---------- 11. 页脚 ---------- */
.site-footer {
  position: relative;
  background: var(--ink);
  color: var(--chalk);
  border-top: 2px solid var(--ink-deep);
}
.site-footer::before {
  content: "";
  display: block;
  height: 10px;
  background-image: repeating-linear-gradient(
    90deg,
    var(--gold) 0 2px,
    transparent 2px 14px
  );
  opacity: 0.45;
}

.footer-inner {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding: 40px var(--gutter) 0;
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(0, 2fr);
  gap: 40px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(200, 164, 74, 0.28);
}

.footer-brand-mark {
  display: block;
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 900;
  letter-spacing: 0.08em;
  line-height: 1.1;
  color: var(--chalk);
}

.footer-brand-note {
  margin: 14px 0 0;
  max-width: 24ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.footer-col-title {
  margin: 0 0 12px;
  padding-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--gold);
  border-bottom: 1px solid rgba(200, 164, 74, 0.28);
}

.footer-links {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  font-size: 15px;
  color: var(--chalk);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}
.footer-links a:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.footer-contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 8px 32px;
  padding: 22px 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
  border-bottom: 1px solid rgba(200, 164, 74, 0.28);
}

.footer-contact-line { margin: 0; }

.footer-contact-value {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--chalk);
  letter-spacing: 0.01em;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  padding: 18px 0 26px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.footer-copy { color: var(--mist); }
.footer-icp { color: var(--mist); }
.footer-legal-sep { color: var(--pitch-2); }

/* ---------- 12. 进入视口显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 340ms ease, transform 340ms ease;
}
[data-reveal="in"] {
  opacity: 1;
  transform: none;
}

/* ---------- 13. 响应式 ---------- */
@media (max-width: 1000px) {
  .header-inner { gap: 14px; }
  .nav-list a { padding: 0 10px; font-size: 14px; }
}

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .header-rule { display: none; }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    padding: 10px var(--gutter) 20px;
    background: var(--ink);
    border-top: 1px solid rgba(200, 164, 74, 0.35);
    border-bottom: 2px solid var(--ink-deep);
    box-shadow: 0 16px 0 rgba(4, 16, 10, 0.35);
  }
  .site-nav[data-open] { display: block; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav-list li + li {
    border-top: 1px solid rgba(200, 164, 74, 0.16);
  }
  .nav-list a {
    display: flex;
    justify-content: space-between;
    min-height: 52px;
    padding: 0 4px;
    font-size: 17px;
    border-bottom: 0;
    border-left: 3px solid transparent;
  }
  .nav-list a:hover {
    background: rgba(200, 164, 74, 0.1);
    border-bottom-color: transparent;
  }
  .nav-list a[aria-current="page"] {
    border-left-color: var(--neon);
    border-bottom-color: transparent;
  }

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

  .footer-top {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }
}

@media (max-width: 620px) {
  body { font-size: 16px; }

  .brand-mark { font-size: 20px; }
  .brand-tagline { font-size: 9px; letter-spacing: 0.24em; }
  .brand-sigil { width: 30px; height: 30px; }

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

  .tile { padding: 20px; }

  .footer-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand-mark { font-size: 26px; }
  .footer-contact { grid-template-columns: minmax(0, 1fr); }
  .footer-legal { font-size: 11px; }
}

/* ---------- 14. 减少动效 ---------- */
@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;
  }

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

  .tile:hover,
  .btn:hover,
  .btn:active,
  .nav-toggle:hover {
    transform: none;
  }
}