/* =========================================================
   浩瀚体育 · HAOHAN SPORTS — 共享站点样式 /assets/site.css
   设计概念：赛事数据指挥舱 · 数据叙事型布局
   ========================================================= */

/* ---------- 1. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--c-primary);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: var(--c-gold); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--c-accent); }
button, input, select, textarea { font: inherit; color: inherit; }
::selection { background: var(--c-accent); color: var(--c-primary); }
:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 3px; }

/* ---------- 2. 变量 ---------- */
:root {
  --c-primary: #0A1B2A;
  --c-secondary: #1E3A5F;
  --c-accent: #FF6B35;
  --c-gold: #F2B705;
  --c-text: #E8EDF2;
  --c-muted: #A0B0C0;
  --c-surface: #0D1B2A;
  --c-light: #F5F7FA;
  --c-success: #28A745;
  --c-danger: #DC3545;
  --border: rgba(30, 58, 95, 0.65);
  --font-head: "DIN Condensed", "Roboto Condensed", "Arial Narrow", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
  --font-mono: "Roboto Mono", "SF Mono", "Cascadia Mono", Consolas, "Courier New", monospace;
  --container-max: 1280px;
}

/* ---------- 3. 基础排版 ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.15;
  color: var(--c-text);
}
p { color: var(--c-muted); }
.metric, .num, code, kbd {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--c-gold);
}

/* ---------- 4. 布局容器 ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.page-content { padding: 56px 0 96px; }
.page-title {
  font-family: var(--font-head);
  font-size: 44px;
  line-height: 1.05;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-text);
  margin-bottom: 12px;
}
.page-title::after {
  content: "";
  display: block;
  width: 72px;
  height: 4px;
  margin-top: 14px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-gold));
}
.page-lede {
  font-size: 18px;
  color: var(--c-muted);
  max-width: 640px;
}
.section { padding: 80px 0; }
.section--dark { background: var(--c-primary); }
.section--steel { background: var(--c-surface); }
.section--light { background: var(--c-light); color: var(--c-secondary); }
.section--light .section-title { color: var(--c-primary); }
.section--light .section-lede { color: #465A6E; }
.section--light .card,
.section--light .panel { background: #FFFFFF; }
.section--light .card p,
.section--light .panel { color: #465A6E; }
.section-title {
  font-family: var(--font-head);
  font-size: 38px;
  line-height: 1.1;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-text);
  margin-bottom: 14px;
}
.section-title::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  margin-top: 12px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-gold));
}
.section-lede {
  color: var(--c-muted);
  max-width: 640px;
  margin-bottom: 32px;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

/* ---------- 5. 按钮 ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 26px;
  border: 1px solid var(--c-secondary);
  border-left: 3px solid var(--c-accent);
  background: rgba(30, 58, 95, 0.22);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease, color .2s ease, transform .2s ease;
}
.btn:hover {
  background: rgba(255, 107, 53, 0.12);
  border-color: var(--c-accent);
  color: var(--c-text);
  transform: translateY(-2px);
}
.btn-accent {
  background: var(--c-accent);
  border-color: var(--c-accent);
  border-left-color: var(--c-gold);
  color: var(--c-primary);
}
.btn-accent:hover {
  background: var(--c-gold);
  border-color: var(--c-gold);
  color: var(--c-primary);
}
.btn--sm {
  min-height: 34px;
  padding: 0 18px;
  font-size: 12px;
}

/* ---------- 6. 站点头部 ---------- */
.site-header {
  position: relative;
  z-index: 50;
  background: var(--c-primary);
  border-bottom: 1px solid var(--border);
}
.header-utility {
  background: var(--c-surface);
  border-bottom: 1px solid var(--border);
}
.header-utility-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 40px;
}
.header-slogan {
  position: relative;
  padding-left: 24px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--c-muted);
}
.header-slogan::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 14px;
  height: 2px;
  background: var(--c-accent);
  box-shadow: 6px -5px 0 var(--c-gold);
  transform: translateY(-50%) skewX(-20deg);
}
.header-tel {
  position: relative;
  padding-right: 20px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-muted);
}
.header-tel::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-success);
  box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.2);
  transform: translateY(-50%);
}
.header-main { background: var(--c-primary); }
.header-main-inner {
  display: flex;
  align-items: center;
  gap: 40px;
  min-height: 84px;
}
.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--c-text);
}
.brand-link:hover,
.brand-link:focus { color: var(--c-text); }
.brand-mark {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  background: linear-gradient(135deg, #1E3A5F 0%, #0D1B2A 100%);
  clip-path: polygon(18% 0, 100% 0, 82% 100%, 0 100%);
}
.brand-mark-slice {
  position: absolute;
  top: 8px;
  right: 8px;
  bottom: 8px;
  left: 8px;
  background: linear-gradient(135deg, var(--c-accent) 0%, var(--c-gold) 100%);
  clip-path: polygon(30% 0, 100% 0, 70% 100%, 0 100%);
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.brand-name {
  font-family: var(--font-head);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-text);
}
.brand-sub {
  margin-top: 3px;
  font-family: var(--font-head);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--c-muted);
}
.site-nav { margin-left: auto; }
.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-item { position: relative; }
.nav-link {
  position: relative;
  display: block;
  padding: 10px 14px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  white-space: nowrap;
  color: var(--c-muted);
  transition: color .2s ease;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 2px;
  height: 3px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-gold));
  transform: scaleX(0) skewX(-24deg);
  transform-origin: left center;
  transition: transform .25s ease;
}
.nav-link:hover { color: var(--c-text); }
.nav-link:hover::after { transform: scaleX(1) skewX(-24deg); }
.nav-link[aria-current="page"] { color: var(--c-gold); }
.nav-link[aria-current="page"]::before {
  content: "";
  position: absolute;
  top: 14px;
  left: 2px;
  width: 4px;
  height: 14px;
  background: var(--c-accent);
  transform: skewX(-18deg);
}
.nav-link[aria-current="page"]::after { transform: scaleX(1) skewX(-24deg); }
.btn-header-cta { margin-left: 8px; }
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color .2s ease;
}
.nav-toggle:hover { border-color: var(--c-accent); }
.nav-toggle-line {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--c-text);
  transition: transform .25s ease, opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--c-accent) 0%, var(--c-gold) 50%, var(--c-accent) 100%);
  transform: scaleX(0);
  transform-origin: left center;
  pointer-events: none;
}

/* ---------- 7. 站点页脚 ---------- */
.site-footer {
  position: relative;
  background: var(--c-surface);
  color: var(--c-muted);
  font-size: 14px;
  overflow: hidden;
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(115deg, transparent 0 18px, rgba(30, 58, 95, 0.35) 18px 19px);
  pointer-events: none;
}
.footer-topline {
  position: relative;
  z-index: 1;
  height: 3px;
  background: linear-gradient(90deg, transparent 0%, var(--c-accent) 30%, var(--c-gold) 50%, var(--c-accent) 70%, transparent 100%);
}
.footer-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
  gap: 40px;
  padding-top: 64px;
  padding-bottom: 48px;
}
.footer-brand-col { min-width: 0; }
.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.footer-brand .brand-mark { width: 38px; height: 38px; flex-basis: 38px; }
.footer-brand .brand-name { font-size: 20px; }
.footer-desc {
  max-width: 360px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
  margin-bottom: 16px;
}
.footer-service-time {
  font-size: 12px;
  letter-spacing: 0.03em;
  color: rgba(160, 176, 192, 0.72);
  margin: 0;
}
.footer-col { min-width: 0; }
.footer-contact-col { min-width: 0; }
.footer-heading {
  font-family: var(--font-head);
  font-size: 16px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-text);
  margin: 0 0 18px;
  padding: 4px 0 4px 12px;
  border-left: 3px solid var(--c-accent);
}
.footer-links li + li { margin-top: 10px; }
.footer-links a {
  position: relative;
  display: inline-block;
  padding-left: 16px;
  font-size: 14px;
  color: var(--c-muted);
  transition: color .2s ease, padding-left .2s ease;
}
.footer-links a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 2px;
  background: var(--c-accent);
  transform: translateY(-50%) skewX(-20deg);
}
.footer-links a:hover {
  color: var(--c-gold);
  padding-left: 22px;
}
.footer-contact-list li {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 14px;
}
.footer-contact-label {
  flex: 0 0 64px;
  width: 64px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-accent);
  padding-top: 2px;
}
.footer-contact-value { color: var(--c-muted); }
.footer-bottom {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(30, 58, 95, 0.8);
}
.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 16px;
  padding-bottom: 16px;
}
.footer-copyright,
.footer-icp {
  margin: 0;
  font-size: 12px;
  color: rgba(160, 176, 192, 0.75);
}
.footer-icp {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-icp::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--c-accent);
  transform: skewX(-18deg);
}

/* ---------- 8. 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
  font-size: 14px;
}
.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--c-muted);
}
.breadcrumb li + li::before {
  content: "/";
  font-family: var(--font-mono);
  color: var(--c-accent);
}
.breadcrumb a { color: var(--c-muted); }
.breadcrumb a:hover { color: var(--c-accent); }
.breadcrumb [aria-current="page"] { color: var(--c-text); }

/* ---------- 9. 基础组件 ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  position: relative;
  background: var(--c-surface);
  border: 1px solid var(--border);
  padding: 24px;
}
.card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 18px;
  height: 18px;
  border-top: 3px solid var(--c-accent);
  border-right: 3px solid var(--c-accent);
}
.card-title,
.card h3 {
  font-family: var(--font-head);
  font-size: 22px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-text);
  margin-bottom: 10px;
}
.card p { font-size: 15px; color: var(--c-muted); }
.panel {
  position: relative;
  background: var(--c-surface);
  border: 1px solid var(--border);
  padding: 24px;
}
.panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 36px;
  background: var(--c-accent);
}
.panel-title {
  font-family: var(--font-head);
  font-size: 16px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-text);
  margin-bottom: 4px;
}
.panel-label {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-muted);
}
.panel-metric {
  font-family: var(--font-mono);
  font-size: 36px;
  line-height: 1.2;
  color: var(--c-gold);
}
.metric {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 32px;
  line-height: 1;
  color: var(--c-gold);
}
.accordion {
  background: var(--c-surface);
  border: 1px solid var(--border);
  margin-bottom: 12px;
}
.accordion summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  padding: 18px 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-text);
  list-style: none;
}
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--c-accent);
  transition: transform .25s ease;
}
.accordion[open] summary::after { transform: rotate(45deg); }
.accordion .accordion-body {
  padding: 0 22px 20px;
  color: var(--c-muted);
}
.media-frame {
  position: relative;
  min-height: 220px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: linear-gradient(135deg, var(--c-secondary) 0%, var(--c-surface) 100%);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(135deg, transparent 0 14px, rgba(255, 255, 255, 0.05) 14px 15px);
}
.media-frame-image {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
}
.media-frame-placeholder {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 1;
  padding-left: 10px;
  border-left: 3px solid var(--c-accent);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-muted);
  transform: translate(-50%, -50%);
}
.media-frame--wide { min-height: 280px; }
.media-frame--tall { min-height: 380px; }

/* ---------- 10. 辅助 ---------- */
.visually-hidden {
  position: absolute !important;
  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: 12px;
  left: 12px;
  z-index: 2000;
  padding: 10px 18px;
  background: var(--c-accent);
  color: var(--c-primary);
  font-weight: 700;
  letter-spacing: 0.08em;
  transform: translateY(-300%);
  transition: transform .2s ease;
}
.skip-link:focus {
  color: var(--c-primary);
  transform: translateY(0);
}

/* ---------- 11. 响应式 ---------- */
@media (max-width: 1024px) {
  .container { padding-left: 20px; padding-right: 20px; }
  .header-main-inner { gap: 20px; min-height: 64px; }
  .btn-header-cta { margin-left: auto; }
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-left: 0;
    max-height: 0;
    overflow: hidden;
    background: var(--c-primary);
    border-top: 1px solid var(--border);
    border-bottom: 2px solid var(--c-accent);
    box-shadow: 0 24px 32px rgba(0, 0, 0, 0.35);
    transition: max-height .35s ease;
  }
  .site-nav[data-open] { max-height: 90vh; overflow-y: auto; }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    padding: 8px 20px 16px;
  }
  .nav-link {
    padding: 14px 10px;
    font-size: 16px;
    border-bottom: 1px solid rgba(30, 58, 95, 0.5);
    white-space: normal;
  }
  .nav-link::after { left: 10px; right: auto; width: 48px; bottom: -1px; }
  .nav-link[aria-current="page"]::before { top: 16px; left: 0; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-3,
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .header-utility-inner { min-height: 36px; }
  .header-slogan { font-size: 12px; padding-left: 18px; }
  .header-slogan::before { width: 10px; }
  .header-tel { font-size: 12px; }
  .btn-header-cta { display: none; }
  .nav-toggle { margin-left: auto; }
  .brand-mark { width: 36px; height: 36px; flex-basis: 36px; }
  .brand-mark-slice { top: 6px; right: 6px; bottom: 6px; left: 6px; }
  .brand-name { font-size: 18px; }
  .brand-sub { font-size: 9px; letter-spacing: 0.18em; }
  .section { padding: 56px 0; }
  .page-content { padding: 40px 0 72px; }
  .page-title { font-size: 32px; }
  .section-title { font-size: 30px; }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
    padding-top: 48px;
    padding-bottom: 32px;
  }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .footer-contact-list li { flex-direction: column; gap: 2px; }
  .footer-contact-label { width: auto; flex-basis: auto; }
  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .header-slogan { display: none; }
  .header-utility-inner { justify-content: flex-end; }
}

/* ---------- 12. 低动效 ---------- */
@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;
  }
  .skip-link { transition: none; }
}