:root {
  --bg: #0A1F44;
  --bg-deep: #060F24;
  --bg-panel: #13294B;
  --bg-blue: #1B3A6B;
  --gold: #FFD700;
  --orange: #FF6B35;
  --white: #FFFFFF;
  --muted: #B8C4D9;
  --green: #28C76F;
  --border: rgba(255,255,255,.08);
  --border-gold: rgba(255,215,0,.45);
  --font-display: "Oswald", "Bebas Neue", "Arial Narrow", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --shell: 1240px;
  --header-h: 72px;
  --radius: 8px;
  --transition: .25s cubic-bezier(.2,.7,.3,1);
  --shadow: 0 20px 45px rgba(0,0,0,.3);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, p, ul, ol, figure {
  margin-top: 0;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: .02em;
  color: var(--white);
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.6rem, 6vw, 4.8rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
}

h3 {
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
}

h4 {
  font-size: 1.1rem;
}

p {
  margin-bottom: 1rem;
  color: var(--muted);
}

a {
  color: var(--gold);
  text-decoration-color: rgba(255,215,0,.35);
  text-underline-offset: 3px;
  transition: color .2s, background .2s, border-color .2s, transform .2s;
}

a:hover {
  color: var(--orange);
}

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

ul[class] {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

#main-content {
  scroll-margin-top: calc(var(--header-h) + 12px);
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 4px;
}

.shell {
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.skip-link {
  position: fixed;
  top: -100%;
  left: 1rem;
  z-index: 1000;
  display: inline-block;
  background: var(--gold);
  color: var(--bg-deep);
  font-weight: 800;
  padding: .8rem 1.25rem;
  border-radius: 0 0 8px 8px;
  text-decoration: none;
  box-shadow: var(--shadow);
}

.skip-link:focus,
.skip-link:focus-visible {
  top: 0;
  outline: 3px solid var(--white);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: linear-gradient(180deg, rgba(10,31,68,.9), rgba(10,31,68,.72));
  border-bottom: 1px solid var(--border-gold);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: background .3s, border-color .3s, box-shadow .3s;
}

.site-header[data-scrolled] {
  background: var(--bg);
  border-bottom-color: rgba(255,107,53,.55);
  box-shadow: 0 8px 28px rgba(0,0,0,.28);
}

.header-shell {
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: 1.25rem;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--gold), var(--orange));
  color: var(--bg-deep);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.35rem;
  line-height: 1;
  border-radius: 12px 5px 12px 5px;
  box-shadow: 0 8px 18px rgba(255,107,53,.35);
  transition: transform .25s var(--transition), box-shadow .25s var(--transition);
}

.brand:hover .brand-mark {
  transform: rotate(-4deg) scale(1.03);
  box-shadow: 0 12px 22px rgba(255,215,0,.3);
}

.brand-text {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--gold);
  letter-spacing: .06em;
  line-height: 1;
  text-transform: uppercase;
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: .45rem;
}

.brand-text small {
  font-family: var(--font-mono);
  font-size: .62rem;
  font-weight: 700;
  color: var(--white);
  background: rgba(255,215,0,.15);
  border: 1px solid var(--border-gold);
  padding: .16rem .5rem;
  border-radius: 999px;
  letter-spacing: .1em;
}

.site-nav {
  display: flex;
  flex: 1;
  align-items: center;
  justify-content: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: .2rem;
}

.nav-link {
  display: block;
  padding: .6rem .8rem;
  color: var(--white);
  text-decoration: none;
  font-weight: 700;
  font-size: .95rem;
  line-height: 1.2;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: .8rem;
  right: .8rem;
  bottom: .2rem;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s var(--transition);
  border-radius: 2px;
}

.nav-link:hover {
  color: var(--gold);
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-link[aria-current="page"] {
  color: var(--gold);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-shrink: 0;
}

.header-badge {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .45rem .8rem;
  border: 1px solid var(--border-gold);
  border-radius: 999px;
  color: var(--gold);
  background: rgba(255,215,0,.07);
  font-size: .78rem;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: .06em;
  white-space: nowrap;
  transition: border-color .25s, color .25s, background .25s;
}

.header-badge span {
  font-family: var(--font-mono);
  font-size: .85rem;
}

.header-badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(40,199,111,.18);
}

.header-badge:hover {
  color: var(--orange);
  border-color: rgba(255,107,53,.6);
  background: rgba(255,107,53,.1);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .55rem .8rem;
  background: transparent;
  border: 1px solid var(--border-gold);
  border-radius: 8px;
  color: var(--gold);
  font: 700 .85rem/1.2 var(--font-body);
  cursor: pointer;
  transition: border-color .25s, background .25s;
}

.nav-toggle:hover {
  background: rgba(255,215,0,.1);
  border-color: var(--orange);
}

.nav-toggle-box {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 18px;
  height: 13px;
}

.nav-toggle-line {
  display: block;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform .3s var(--transition), opacity .2s;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
  transform: translateY(5.5px) 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(-5.5px) rotate(-45deg);
}

.nav-toggle-text {
  line-height: 1;
}

.progress-track {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 3px;
  background: rgba(255,255,255,.08);
}

.progress-bar {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--orange));
  transform: scaleX(0);
  transform-origin: left center;
  will-change: transform;
}

@media (max-width: 899px) {
  .site-header {
    --header-h: 64px;
  }

  .header-shell {
    padding-inline: .9rem;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 60;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: .25rem;
    padding: 1rem 1.1rem 1.2rem;
    background: rgba(10,31,68,.98);
    border-bottom: 2px solid var(--border-gold);
    box-shadow: 0 20px 35px rgba(0,0,0,.28);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity .3s var(--transition), transform .3s var(--transition), visibility .3s;
  }

  .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: .2rem;
  }

  .nav-link {
    padding: .85rem .5rem;
    border-bottom: 1px solid rgba(255,255,255,.08);
    font-size: 1rem;
  }

  .nav-link::after {
    display: none;
  }

  .nav-link:hover {
    background: rgba(255,215,0,.06);
  }

  .nav-link[aria-current="page"] {
    color: var(--gold);
  }
}

@media (max-width: 640px) {
  .nav-toggle-text {
    display: none;
  }

  .header-tools {
    gap: .5rem;
  }

  .header-badge {
    padding: .4rem .6rem;
  }
}

@media (min-width: 900px) {
  .nav-toggle {
    display: none;
  }
}

.site-footer {
  position: relative;
  border-top: 2px solid rgba(255,215,0,.55);
  background: linear-gradient(180deg, var(--bg-deep), var(--bg) 45%, var(--bg-panel));
  margin-top: clamp(3rem, 8vw, 6rem);
  color: var(--muted);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: min(240px, 40%);
  height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--orange));
  border-radius: 0 0 6px 0;
}

.footer-shell {
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(2.5rem, 6vw, 4.5rem) 1.25rem 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.4fr;
  gap: 2rem;
}

.footer-brand-name {
  margin-bottom: .8rem;
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--gold);
  letter-spacing: .08em;
  display: flex;
  align-items: center;
  gap: .6rem;
}

.footer-brand-name::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 4px 2px 4px 2px;
  background: linear-gradient(135deg, var(--gold), var(--orange));
  box-shadow: 0 0 18px rgba(255,215,0,.35);
}

.footer-desc {
  font-size: .95rem;
  max-width: 36rem;
}

.footer-trust {
  margin-top: 1.1rem;
  padding: .9rem 1rem;
  border-left: 3px solid var(--orange);
  background: rgba(255,255,255,.04);
  color: var(--muted);
  font-size: .9rem;
  border-radius: 0 8px 8px 0;
}

.footer-col h2 {
  font-size: .95rem;
  letter-spacing: .14em;
  margin-bottom: 1rem;
  text-transform: uppercase;
  color: var(--white);
  padding-left: .9rem;
  border-left: 3px solid var(--gold);
}

.footer-links a {
  display: inline-block;
  padding: .28rem 0;
  color: var(--muted);
  text-decoration: none;
  font-size: .95rem;
  transition: color .2s, transform .2s var(--transition);
}

.footer-links a:hover {
  color: var(--gold);
  transform: translateX(4px);
}

.footer-contact {
  display: grid;
  gap: .6rem;
}

.footer-contact li {
  display: grid;
  grid-template-columns: 3.2rem 1fr;
  gap: .6rem;
  font-size: .9rem;
  color: var(--muted);
}

.contact-label {
  color: var(--gold);
  font-weight: 700;
  letter-spacing: .08em;
}

.contact-note {
  grid-column: 1 / -1;
  font-size: .85rem;
  color: var(--muted);
  border-top: 1px dashed rgba(255,255,255,.1);
  padding-top: .6rem;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1.5rem;
  align-items: center;
  justify-content: space-between;
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255,255,255,.1);
  font-size: .85rem;
  color: var(--muted);
}

.footer-bottom p {
  margin: 0;
}

@media (max-width: 980px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  padding: .8rem 1.4rem;
  border-radius: 8px;
  font: 700 .95rem/1.2 var(--font-body);
  letter-spacing: .02em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .25s var(--transition), color .25s, border-color .25s, transform .25s var(--transition), box-shadow .25s;
}

.btn--gold {
  background: linear-gradient(135deg, var(--gold), #FFB300);
  color: var(--bg-deep);
  box-shadow: 0 8px 22px rgba(255,215,0,.22);
}

.btn--gold:hover {
  background: linear-gradient(135deg, #FFB300, var(--orange));
  color: var(--bg-deep);
  box-shadow: 0 12px 26px rgba(255,107,53,.28);
  transform: translateY(-2px);
}

.btn--outline {
  border-color: var(--border-gold);
  color: var(--gold);
  background: transparent;
}

.btn--outline:hover {
  border-color: var(--orange);
  color: var(--orange);
  background: rgba(255,107,53,.08);
  transform: translateY(-2px);
}

.btn--block {
  width: 100%;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--muted);
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 999px;
  padding: .3rem .7rem;
  line-height: 1.4;
}

.tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
}

.tag--hot {
  color: var(--white);
  background: rgba(255,107,53,.14);
  border-color: rgba(255,107,53,.45);
}

.tag--hot::before {
  background: var(--orange);
  box-shadow: 0 0 0 3px rgba(255,107,53,.18);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem .5rem;
  align-items: center;
  padding: .6rem 0;
  font-size: .9rem;
  color: var(--muted);
  list-style: none;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: .5rem;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--gold);
  opacity: .5;
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

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

.breadcrumb [aria-current="page"] {
  color: var(--gold);
  font-weight: 700;
}

.section {
  padding: clamp(3rem, 8vw, 6rem) 0;
  position: relative;
}

.section-panel {
  background: linear-gradient(135deg, rgba(19,41,75,.85), rgba(10,31,68,.95));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 4vw, 3rem);
}

.section-head {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: .8rem;
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  background: rgba(255,107,53,.12);
  border: 1px solid rgba(255,107,53,.35);
  padding: .35rem .8rem;
  border-radius: 999px;
}

.section-kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 3px rgba(255,107,53,.2);
}

.section-title {
  margin-bottom: 1rem;
}

.page-hero {
  padding: clamp(4rem, 9vw, 7rem) 0 3rem;
  background: linear-gradient(135deg, var(--bg-deep), var(--bg-panel) 60%, var(--bg));
  border-bottom: 1px solid var(--border-gold);
}

.page-hero__title {
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  line-height: .95;
}

.page-hero__intro {
  max-width: 60ch;
  color: var(--muted);
  font-size: 1.05rem;
  margin-top: 1rem;
}

.split-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  min-height: calc(100vh - var(--header-h));
  padding: clamp(2rem, 6vw, 4rem) 0;
}

.hero-copy .section-kicker {
  display: inline-flex;
}

.hero-title {
  font-size: clamp(3.5rem, 8vw, 7rem);
  line-height: .88;
  text-transform: uppercase;
  letter-spacing: -.01em;
  margin-bottom: 1.25rem;
}

.hero-title .text-gold {
  color: var(--gold);
}

.hero-copy p {
  font-size: 1.15rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  margin-top: 1.6rem;
}

.hero-visual {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  min-height: 400px;
  border: 1px solid var(--border-gold);
  background: radial-gradient(circle at 70% 20%, rgba(255,215,0,.22), transparent 45%), linear-gradient(135deg, var(--bg-panel) 0%, var(--bg) 55%, var(--bg-blue) 100%);
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
}

.hero-visual .visual-ring {
  width: min(220px, 60%);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 2px dashed rgba(255,215,0,.6);
  display: grid;
  place-items: center;
}

.hero-visual .visual-ring::before {
  content: "";
  width: 56%;
  height: 56%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,215,0,.7), rgba(255,107,53,.4));
  box-shadow: 0 0 40px rgba(255,215,0,.35);
}

@media (max-width: 900px) {
  .split-hero {
    grid-template-columns: 1fr;
    min-height: 0;
    padding-top: 2rem;
  }

  .hero-visual {
    min-height: 320px;
  }
}

.grid-8-4 {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: clamp(1rem, 3vw, 2rem);
}

.grid-6-6 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1rem, 3vw, 2rem);
}

.index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  gap: 1rem;
}

@media (max-width: 900px) {
  .grid-8-4,
  .grid-6-6 {
    grid-template-columns: 1fr;
  }
}

.card {
  position: relative;
  display: block;
  padding: 1.5rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  text-decoration: none;
  transition: border-color .25s var(--transition), transform .25s var(--transition), background .25s var(--transition);
}

.card:hover {
  border-color: var(--border-gold);
  transform: translateY(-3px);
  background: linear-gradient(135deg, var(--bg-panel), var(--bg-blue));
}

.card-title {
  color: var(--white);
  font-size: 1.15rem;
  margin-bottom: .4rem;
}

.card-excerpt {
  color: var(--muted);
  font-size: .95rem;
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
  padding: 1.5rem;
  background: var(--bg);
  border: 1px solid rgba(255,215,0,.25);
  border-radius: 8px;
}

.stat-item {
  display: grid;
  gap: .25rem;
  border-left: 2px solid var(--gold);
  padding-left: .9rem;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--gold);
  line-height: 1;
  letter-spacing: -.03em;
}

.stat-label {
  color: var(--muted);
  font-size: .9rem;
}

.stat-item--hot {
  border-left-color: var(--orange);
}

.stat-item--hot .stat-value {
  color: var(--orange);
}

.stat-item--ok {
  border-left-color: var(--green);
}

.stat-item--ok .stat-value {
  color: var(--green);
}

.data-num {
  font-family: var(--font-mono);
  letter-spacing: -.03em;
}

.media-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--bg-panel), var(--bg) 50%, var(--bg-blue));
  border: 1px solid rgba(255,215,0,.22);
  display: grid;
  place-items: center;
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 25%, rgba(255,215,0,.18), transparent 42%), radial-gradient(circle at 85% 80%, rgba(255,107,53,.16), transparent 45%), linear-gradient(135deg, transparent 60%, rgba(255,255,255,.04));
  opacity: .9;
}

.media-frame::after {
  content: "赛事视觉区";
  position: absolute;
  left: .9rem;
  bottom: .9rem;
  z-index: 2;
  background: rgba(6,15,36,.82);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  padding: .35rem .7rem;
  border-left: 2px solid var(--orange);
  border-radius: 0 999px 999px 0;
}

.media-frame > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.media-frame--hero {
  aspect-ratio: 4 / 3;
}

.media-frame--portrait {
  aspect-ratio: 3 / 4;
}

.media-frame--wide {
  aspect-ratio: 21 / 9;
}

@media (max-width: 720px) {
  .media-frame--hero {
    aspect-ratio: 16 / 10;
  }

  .media-frame--wide {
    aspect-ratio: 16 / 9;
  }
}

.text-gold {
  color: var(--gold);
}

.text-orange {
  color: var(--orange);
}

.text-muted {
  color: var(--muted);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto !important;
  }

  *,
  *::before,
  *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}