:root {
  --bg-deep: #0B0F19;
  --bg-raise: #141A29;
  --glass: rgba(255,255,255,0.06);
  --blue: #00D8FF;
  --orange: #FF6A00;
  --violet: #8A2BE2;
  --text-main: #F5F7FA;
  --text-dim: #A0AABF;
  --border-glow: rgba(0,216,255,0.4);
  --font-display: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --header-width: 260px;
  --header-h: 64px;
  --radius: 12px;
  --gradient: linear-gradient(135deg, #00D8FF, #8A2BE2);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.15;
  margin: 0 0 0.5em;
}

p,
ul,
ol {
  margin-top: 0;
}

a {
  color: var(--blue);
  text-decoration: none;
  transition: color 150ms ease;
}

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

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

::selection {
  background: var(--blue);
  color: #0B0F19;
}

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

main {
  display: block;
  min-height: 70vh;
}

#main-content:focus {
  outline: none;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: 2000;
  background: var(--blue);
  color: #06121A;
  padding: 0.6rem 1.2rem;
  border-radius: 0 0 8px 8px;
  font-weight: 700;
  transition: top 150ms ease;
}

.skip-link:focus {
  top: 0;
}

.container {
  width: min(1200px, 100% - 3rem);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section {
  padding-block: clamp(3rem, 6vw, 5rem);
}

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,216,255,0.4), transparent);
  margin: 3rem 0;
}

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
  background: rgba(255,106,0,0.12);
  padding: 0.35em 0.9em;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1;
  padding: 0.9rem 1.5rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

.btn--primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 8px 30px rgba(0,216,255,0.25);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(255,106,0,0.3);
  color: #fff;
}

.btn--ghost {
  background: transparent;
  border-color: var(--border-glow);
  color: var(--blue);
}

.btn--ghost:hover {
  border-color: var(--orange);
  color: var(--orange);
  transform: translateY(-2px);
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-main);
  text-decoration: none;
  white-space: nowrap;
}

.site-brand:hover {
  color: var(--text-main);
}

.site-brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  background: var(--gradient);
  color: #fff;
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
  box-shadow: 0 0 24px rgba(0,216,255,0.35);
}

.site-brand__text {
  display: flex;
  flex-direction: column;
}

.site-brand__name {
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  line-height: 1.1;
}

.site-brand__sub {
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(20,26,41,0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-glow);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
  padding: 0 1rem;
}

.site-header__top {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.site-header__status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.7rem;
  color: var(--bg-deep);
  background: var(--blue);
  padding: 0.25em 0.75em;
  border-radius: 999px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: 0 0 12px rgba(0,216,255,0.5);
}

.site-header__live-label {
  line-height: 1;
}

.site-header__ticker-dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 999px;
  background: var(--bg-deep);
  display: inline-block;
  animation: blink 1.4s infinite alternate;
}

@keyframes blink {
  from {
    opacity: 0.3;
  }
  to {
    opacity: 1;
  }
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  width: 2.5rem;
  height: 2.5rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  cursor: pointer;
}

.nav-toggle__box {
  width: 1.1rem;
  height: 0.9rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.nav-toggle__bar {
  height: 2px;
  background: var(--text-main);
  border-radius: 99px;
  transition: transform 200ms ease, opacity 200ms ease;
}

[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(0.35rem) rotate(45deg);
}

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

[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-0.35rem) rotate(-45deg);
}

.site-nav {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 999;
  background: var(--bg-deep);
  padding: 2rem 1.5rem 2.5rem;
  transform: translateX(-100%);
  visibility: hidden;
  transition: transform 200ms ease, visibility 200ms ease;
  overflow-y: auto;
}

.site-nav[data-open] {
  transform: translateX(0);
  visibility: visible;
}

.site-nav__list {
  list-style: none;
  margin: 0 0 2rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.site-nav__item {
  margin: 0;
}

.site-nav__link {
  display: block;
  padding: 0.9rem 1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--text-main);
  border-left: 3px solid transparent;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}

.site-nav__link:hover {
  color: var(--blue);
  background: rgba(255,255,255,0.03);
  border-color: var(--blue);
}

.site-nav__link[aria-current="page"] {
  color: var(--blue);
  border-color: var(--orange);
  background: rgba(0,216,255,0.06);
}

.site-nav__cta {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: flex-start;
}

.site-nav__meta {
  color: var(--text-dim);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}

.site-header__aside {
  display: none;
}

.site-footer {
  background: var(--bg-raise);
  border-top: 1px solid var(--border-glow);
}

.site-footer__inner {
  display: grid;
  gap: 2rem;
  padding: 3rem 1.5rem 1.5rem;
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.site-footer__slogan {
  margin: 0;
  color: var(--text-dim);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-footer__section {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.site-footer__title {
  font-size: 1rem;
  letter-spacing: 0.08em;
  color: var(--blue);
  text-transform: uppercase;
  margin: 0;
}

.site-footer__links {
  list-style: none;
  margin: 0;
  padding: 0;
  column-count: 2;
  gap: 1rem;
}

.site-footer__links a {
  display: inline-block;
  color: var(--text-dim);
  font-size: 0.95rem;
  padding: 0.25rem 0;
  transition: color 150ms ease, transform 150ms ease;
}

.site-footer__links a:hover {
  color: var(--blue);
  transform: translateX(2px);
}

.site-footer__line {
  margin: 0;
  font-size: 0.95rem;
}

.site-footer__note {
  color: var(--text-dim);
  font-size: 0.85rem;
  line-height: 1.7;
  margin: 0.25rem 0 0;
}

.site-footer__meta {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  color: var(--text-dim);
  font-size: 0.8rem;
}

.site-footer__meta p {
  margin: 0;
}

.page-hero {
  position: relative;
  margin: 0.75rem;
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1.25rem, 4vw, 4rem);
  background:
    linear-gradient(120deg, rgba(0,216,255,0.08) 0%, transparent 45%),
    linear-gradient(135deg, rgba(138,43,226,0.12) 0%, rgba(255,106,0,0.04) 100%),
    var(--bg-raise);
  border: 1px solid var(--border-glow);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0.7rem;
  border: 1px dashed rgba(0,216,255,0.3);
  pointer-events: none;
}

.page-hero::after {
  content: "";
  position: absolute;
  right: -4rem;
  bottom: -4rem;
  width: 12rem;
  height: 12rem;
  background: radial-gradient(circle, rgba(138,43,226,0.2), transparent 70%);
  pointer-events: none;
}

.page-hero__inner {
  position: relative;
  z-index: 1;
}

.page-hero__title {
  font-size: clamp(2.5rem, 7vw, 5rem);
  margin-bottom: 0.35em;
  letter-spacing: 0.02em;
}

.page-hero__lede {
  font-size: 1rem;
  max-width: 55ch;
  color: var(--text-dim);
}

.page-hero__meta {
  margin-top: 1.5rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  letter-spacing: 0.02em;
  margin: 0 0 1.5rem;
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 2rem;
}

.card {
  background: var(--glass);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 180ms ease, transform 180ms ease, background 180ms ease;
  backdrop-filter: blur(8px);
}

.card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  background: rgba(255,255,255,0.08);
}

.card--glass {
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(16px);
}

.card__title {
  font-size: 1.2rem;
  margin-bottom: 0.4rem;
}

.card__body {
  color: var(--text-dim);
  font-size: 0.95rem;
}

.data-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.tag {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.3em 0.9em;
  border-radius: 999px;
  background: rgba(0,216,255,0.1);
  color: var(--blue);
  border: 1px solid transparent;
}

.tag--orange {
  background: rgba(255,106,0,0.12);
  color: var(--orange);
}

.accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.accordion__item {
  background: var(--glass);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  transition: border-color 180ms ease;
}

.accordion__item[data-open] {
  border-color: var(--border-glow);
  background: rgba(0,216,255,0.04);
}

.accordion__trigger {
  width: 100%;
  text-align: left;
  background: none;
  border: 0;
  padding: 1.2rem 1.5rem;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  transition: color 180ms ease;
}

.accordion__item[data-open] .accordion__trigger {
  color: var(--blue);
}

.accordion__trigger::after {
  content: "+";
  font-size: 1.4rem;
  line-height: 1;
  color: var(--blue);
  transition: transform 180ms ease;
}

.accordion__item[data-open] .accordion__trigger::after {
  transform: rotate(45deg);
  color: var(--orange);
}

.accordion__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 200ms ease;
}

.accordion__panel > * {
  overflow: hidden;
  margin: 0;
}

.accordion__item[data-open] .accordion__panel {
  grid-template-rows: 1fr;
}

.accordion__panel-inner {
  padding: 0 1.5rem 1.25rem;
  color: var(--text-dim);
}

.media {
  position: relative;
  display: block;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(0,216,255,0.12), rgba(138,43,226,0.12)),
    var(--bg-raise);
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.06);
  aspect-ratio: 4 / 3;
}

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

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

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

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.85rem;
  margin: 0 0.75rem 1rem;
  padding: 0;
  list-style: none;
  align-items: center;
}

.breadcrumbs li + li::before {
  content: "/";
  color: var(--text-dim);
  margin-right: 0.5rem;
}

.breadcrumbs a {
  color: var(--text-dim);
}

.breadcrumbs a:hover {
  color: var(--blue);
}

.scoresheet {
  width: 100%;
  border-collapse: collapse;
  background: var(--glass);
  border-radius: var(--radius);
  overflow: hidden;
}

.scoresheet th {
  background: rgba(0,216,255,0.08);
  color: var(--blue);
  text-align: left;
  padding: 0.75rem 1rem;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
}

.scoresheet td {
  padding: 0.75rem 1rem;
  border-top: 1px solid rgba(255,255,255,0.06);
}

@media (min-width: 600px) {
  .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .site-footer__brand {
    grid-column: 1 / -1;
  }

  .site-footer__meta {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .data-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  body > main,
  .site-footer {
    margin-left: var(--header-width);
  }

  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--header-width);
    background: var(--bg-raise);
    border-right: 1px solid var(--border-glow);
    border-bottom: 0;
    backdrop-filter: none;
  }

  .site-header__inner {
    min-height: 100vh;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 1.75rem 1.1rem 1.5rem;
  }

  .site-header__top {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .site-header__status {
    display: none;
  }

  .nav-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    transform: none;
    visibility: visible;
    background: transparent;
    padding: 2rem 0 0;
    overflow-y: visible;
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  .site-nav__list {
    margin: 0;
    flex: 1;
    gap: 0.15rem;
  }

  .site-nav__link {
    font-size: 1.02rem;
    padding: 0.75rem 0.85rem;
  }

  .site-nav__cta {
    margin-top: 1.5rem;
  }

  .site-header__aside {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255,255,255,0.08);
    font-size: 0.75rem;
    color: var(--text-dim);
  }

  .site-header__ticker {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
  }

  .site-header__aside .site-header__ticker-dot {
    background: var(--orange);
    width: 0.5rem;
    height: 0.5rem;
  }

  .site-header__year {
    font-variant-numeric: tabular-nums;
  }

  .site-footer__inner {
    grid-template-columns: 1.4fr 1fr 1.6fr;
    padding: 3.5rem 3rem 1.5rem;
  }

  .site-footer__brand {
    grid-column: 1 / -1;
  }

  .site-footer__meta {
    grid-column: 1 / -1;
  }

  .page-hero {
    margin: 2rem 2.5rem 0;
  }

  .breadcrumbs {
    margin: 0 2.5rem 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}