:root {
  --bg: #0B1B2B;
  --bg-deep: #002B4A;
  --primary: #00A8FF;
  --accent: #39FF14;
  --highlight: #FF6B35;
  --paper: #F5F1E8;
  --text: #FFFFFF;
  --text-sub: #B0C4DE;
  --text-muted: #6B7B8D;
  --line: #1F3A5F;
  --font-display: Impact, 'Arial Black', 'Noto Sans SC', sans-serif;
  --font-heading: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --radius-pill: 999px;
  --radius-card: 12px;
  --container: 1200px;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
* {
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: auto;
}
body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background:
    linear-gradient(115deg, transparent 70%, rgba(0,168,255,0.05) 72%, transparent 74%),
    repeating-linear-gradient(0deg, rgba(31,58,95,0.25) 0 1px, transparent 1px 7px),
    linear-gradient(180deg, #071827, var(--bg) 40%);
  background-color: var(--bg);
  overflow-wrap: break-word;
}
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.3;
}
a {
  color: var(--primary);
  text-decoration: none;
}
a:hover {
  color: var(--accent);
}
ul, ol {
  list-style: none;
}
button {
  font: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}
img {
  max-width: 100%;
  display: block;
}
::selection {
  background: var(--primary);
  color: var(--bg);
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
#main-content {
  scroll-margin-top: 90px;
}
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}
.section {
  padding-block: 48px;
}
.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 3rem);
  letter-spacing: 0.02em;
  margin-bottom: 8px;
}
.section-index {
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--primary);
  background: rgba(0,168,255,0.08);
  border: 1px solid rgba(0,168,255,0.3);
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 12px;
}
.skip-link {
  position: fixed;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  padding: 8px 20px;
  border-radius: 0 0 var(--radius-card) var(--radius-card);
  background: var(--accent);
  color: var(--bg);
  font-weight: 700;
  transition: top 0.2s ease;
}
.skip-link:focus-visible {
  top: 0;
}
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  z-index: 150;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  box-shadow: 0 0 8px rgba(57,255,20,0.4);
  pointer-events: none;
}
.site-header {
  position: sticky;
  top: 10px;
  z-index: 100;
  padding: 8px 20px 12px;
}
.header-island {
  position: relative;
  max-width: var(--container);
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 12px 8px 24px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(0,168,255,0.35);
  background: linear-gradient(100deg, rgba(0,168,255,0.08), rgba(0,43,74,0.88) 35%, rgba(57,255,20,0.05));
  box-shadow: 0 12px 30px rgba(0,0,0,0.45), inset 0 1px 0 rgba(255,255,255,0.04);
}
.header-island::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 70%;
  border-radius: 99px;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(57,255,20,0.7);
}
.header-brand {
  flex-shrink: 0;
  min-width: 0;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1;
  background: var(--primary);
  color: var(--bg);
  padding: 6px 8px;
  border-radius: 8px;
  letter-spacing: 0.03em;
  box-shadow: 0 0 12px rgba(0,168,255,0.35);
  flex-shrink: 0;
}
.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  min-width: 0;
  overflow: hidden;
}
.brand-name {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.brand-tagline {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.site-nav {
  min-width: 0;
  margin-left: auto;
}
.nav-list {
  display: flex;
  gap: 2px;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-list::-webkit-scrollbar {
  display: none;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
  color: var(--text-sub);
  font-size: 0.8rem;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.2s, background-color 0.2s, border-color 0.2s;
}
.nav-link:hover {
  color: var(--text);
  background: rgba(0,168,255,0.12);
  border-color: rgba(0,168,255,0.25);
}
.nav-link[aria-current="page"] {
  color: var(--text);
  border-color: var(--primary);
  background: rgba(0,168,255,0.16);
}
.nav-index {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-muted);
  transition: color 0.2s;
}
.nav-link:hover .nav-index,
.nav-link[aria-current="page"] .nav-index {
  color: var(--accent);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.85rem;
  font-weight: 700;
  transition: transform 0.2s, box-shadow 0.2s, background-color 0.2s, color 0.2s, border-color 0.2s;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn-cta {
  background: var(--accent);
  color: var(--bg);
  box-shadow: 0 4px 18px rgba(57,255,20,0.25);
}
.btn-cta:hover {
  background: var(--primary);
  color: var(--bg);
  box-shadow: 0 6px 24px rgba(0,168,255,0.35);
}
.btn-primary {
  background: var(--primary);
  color: var(--bg);
}
.btn-primary:hover {
  background: var(--accent);
  color: var(--bg);
}
.btn-outline {
  border-color: var(--line);
  background: transparent;
  color: var(--text-sub);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--text);
  background: rgba(0,168,255,0.08);
}
.header-cta {
  margin-left: 8px;
  flex-shrink: 0;
}
.nav-toggle {
  display: none;
}
.site-footer {
  margin-top: 80px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, #061524, var(--bg));
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background: repeating-linear-gradient(90deg, var(--primary) 0 18%, transparent 18% 22%, var(--highlight) 22% 38%, transparent 38% 42%, var(--accent) 42% 58%, transparent 58% 62%, var(--primary) 62% 100%);
  opacity: 0.7;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 32px;
  padding: 48px 0 24px;
}
.footer-brand {
  min-width: 0;
}
.footer-brand-link {
  margin-bottom: 12px;
}
.footer-desc {
  max-width: 46em;
  color: var(--text-sub);
  font-size: 0.9rem;
  margin-top: 8px;
}
.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
  padding-bottom: 6px;
  border-bottom: 1px dashed var(--line);
}
.footer-links li {
  margin-bottom: 8px;
}
.footer-links a {
  color: var(--text-sub);
  font-size: 0.85rem;
}
.footer-links a:hover {
  color: var(--accent);
}
.footer-contact .contact-line {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-sub);
  margin-bottom: 6px;
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding: 16px 0 20px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}
.copyright {
  color: var(--text-sub);
}
.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-meta a {
  color: var(--text-muted);
}
.footer-meta a:hover {
  color: var(--highlight);
}
.footer-icp {
  margin-left: auto;
}
.card {
  position: relative;
  background: rgba(0,43,74,0.55);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.card:hover {
  transform: scale(1.02);
  border-color: var(--primary);
  box-shadow: 0 10px 28px rgba(0,168,255,0.12);
}
.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.card-meta {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}
.card-grid > * {
  grid-column: span 4;
}
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: minmax(120px, auto);
  gap: 16px;
}
.bento-item {
  position: relative;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 24px;
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.bento-item:hover {
  transform: scale(1.02);
  border-color: var(--primary);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.bento-item--wide {
  grid-column: span 8;
}
.bento-item--small {
  grid-column: span 4;
}
.bento-item--tall {
  grid-row: span 2;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-sub);
  background: rgba(0,43,74,0.6);
  border: 1px solid var(--line);
}
.tag-live {
  color: var(--bg);
  background: var(--accent);
  border-color: var(--accent);
}
.tag-hot {
  color: var(--bg);
  background: var(--highlight);
  border-color: var(--highlight);
}
.tag-archive {
  color: var(--bg);
  background: var(--paper);
  border-color: var(--paper);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(57,255,20,0.6);
  display: inline-block;
}
.media-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.media-frame::before {
  content: "IMAGE / 赛事画面";
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  background: repeating-linear-gradient(45deg, rgba(0,168,255,0.08) 0 8px, transparent 8px 16px);
}
.media-frame img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}
.breadcrumb a {
  color: var(--primary);
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb [aria-current="page"] {
  color: var(--text-sub);
}
.grid {
  display: grid;
  gap: 16px;
}
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  transition-delay: var(--reveal-delay, 0ms);
}
html.js [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}
@media (max-width: 1100px) {
  .brand-tagline {
    display: none;
  }
  .header-island {
    gap: 10px;
  }
  .nav-link {
    padding: 6px 8px;
    font-size: 0.75rem;
  }
  .brand-name {
    font-size: 0.82rem;
  }
}
@media (max-width: 960px) {
  .header-island {
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px 8px 8px 16px;
    border-radius: 20px;
  }
  .header-island::before {
    left: 5px;
  }
  .header-brand {
    flex: 1 1 auto;
  }
  .header-cta {
    order: 2;
    margin-left: auto;
  }
  .nav-toggle {
    order: 3;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--line);
    background: var(--bg-deep);
    color: var(--text);
    padding: 8px 14px;
    border-radius: 999px;
    transition: border-color 0.2s, color 0.2s, background 0.2s;
    flex-shrink: 0;
  }
  .nav-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
  }
  .nav-toggle-icon {
    position: relative;
    width: 18px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: background 0.2s;
  }
  .nav-toggle-icon::before,
  .nav-toggle-icon::after {
    content: "";
    position: absolute;
    left: 0;
    width: 18px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: transform 0.2s, top 0.2s;
  }
  .nav-toggle-icon::before {
    top: -6px;
  }
  .nav-toggle-icon::after {
    top: 6px;
  }
  [data-nav-toggle][aria-expanded="true"] .nav-toggle-icon {
    background: transparent;
  }
  [data-nav-toggle][aria-expanded="true"] .nav-toggle-icon::before {
    top: 0;
    transform: rotate(45deg);
  }
  [data-nav-toggle][aria-expanded="true"] .nav-toggle-icon::after {
    top: 0;
    transform: rotate(-45deg);
  }
  .nav-toggle-label {
    font-size: 0.8rem;
    font-weight: 700;
  }
  .site-nav {
    order: 4;
    width: 100%;
    display: none;
  }
  .site-nav[data-open] {
    display: block;
  }
  .nav-list {
    flex-direction: column;
    overflow-x: visible;
  }
  .nav-link {
    width: 100%;
    justify-content: flex-start;
    padding: 10px 12px;
  }
  .card-grid > * {
    grid-column: span 6;
  }
  .bento-item--wide,
  .bento-item--small {
    grid-column: span 12;
  }
  .bento-item--tall {
    grid-row: auto;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}
@media (max-width: 600px) {
  .site-header {
    padding: 8px 10px;
  }
  .header-island {
    padding-left: 14px;
  }
  .brand-name {
    font-size: 0.7rem;
  }
  .nav-toggle-label {
    display: none;
  }
  .btn.header-cta {
    font-size: 0.75rem;
    padding: 7px 12px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 0 16px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-icp {
    margin-left: 0;
  }
  .card-grid > * {
    grid-column: span 12;
  }
}
@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;
  }
  html.js [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}