:root {
  --bg: #0A0A0A;
  --bg-panel: #1A1A1A;
  --primary: #C6FF00;
  --accent: #00E5FF;
  --alert: #FF6D00;
  --text: #E0E0E0;
  --muted: #B0B0B0;
  --white: #FFFFFF;
  --ink: #000000;
  --font-head: "DIN Alternate", "Arial Black", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "Roboto Mono", "SF Mono", Consolas, monospace;
  --container: 1320px;
  --gutter: clamp(1rem, 3vw, 2.5rem);
  --header-h: 68px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}

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

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(0, 229, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, .035) 1px, transparent 1px);
  background-size: 32px 32px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
}

h1, h2, h3, h4, h5, p, ul, figure {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

a {
  color: var(--accent);
  text-decoration: none;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

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

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

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

.container {
  width: min(var(--container), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
}

.container--narrow {
  max-width: 860px;
}

.main-content {
  min-height: calc(100vh - var(--header-h));
}

.section {
  padding: clamp(3rem, 7vw, 6rem) 0;
}

.section--tight {
  padding: 2rem 0;
}

.section__head {
  max-width: 780px;
  margin-bottom: 2rem;
}

.section-title {
  margin-bottom: .5rem;
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 900;
  line-height: 1.15;
  color: var(--white);
}

.lead {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 65ch;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: .5rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "//";
  color: var(--alert);
  font-weight: 700;
}

.caption {
  font-size: .875rem;
  color: var(--muted);
}

.data {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--primary);
}

.skip-link {
  position: fixed;
  top: -100px;
  left: var(--gutter);
  z-index: 300;
  padding: .65rem 1.1rem;
  background: var(--primary);
  color: var(--ink);
  font-family: var(--font-head);
  font-weight: 900;
  transition: top .2s;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(10, 10, 10, .88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(0, 229, 255, .22);
}

.site-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: var(--header-h);
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  color: var(--white);
}

.brand-link:hover {
  color: var(--white);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  padding: .25rem .4rem;
  background: var(--primary);
  color: var(--ink);
  font-family: var(--font-mono);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.03em;
}

.brand-mark__dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-left: 3px;
  background: var(--alert);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--alert);
}

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

.brand-name__cn {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: .02em;
}

.brand-name__en {
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: .58rem;
  letter-spacing: .18em;
  color: var(--accent);
  text-transform: uppercase;
}

.site-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
}

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

.nav-list__item {
  margin: 0;
}

.nav-list__link {
  position: relative;
  display: inline-block;
  padding: .55rem .7rem;
  color: var(--text);
  font-size: .92rem;
  font-weight: 800;
  white-space: nowrap;
  transition: color .2s;
}

.nav-list__link::after {
  content: "";
  position: absolute;
  left: .7rem;
  right: .7rem;
  bottom: .3rem;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s;
}

.nav-list__link:hover {
  color: var(--primary);
}

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

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

.nav-list__link[aria-current="page"]::before {
  content: "//";
  margin-right: .25rem;
  color: var(--alert);
  font-family: var(--font-mono);
  font-size: .72rem;
}

.header-live {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  margin-left: .5rem;
  padding: .4rem .7rem;
  background: var(--bg-panel);
  border: 1px solid rgba(0, 229, 255, .22);
  clip-path: polygon(6px 0, calc(100% - 10px) 0, 100% 100%, 0 100%);
}

.live-badge {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .08em;
}

.live-badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
  animation: livePulse 1.6s infinite;
}

@keyframes livePulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .35; transform: scale(.8); }
}

.live-score {
  color: var(--white);
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 700;
}

.live-score__time {
  margin-left: .3rem;
  color: var(--alert);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: .5rem;
  border: 1px solid rgba(0, 229, 255, .4);
  background: rgba(0, 229, 255, .06);
  color: var(--primary);
  cursor: pointer;
}

.nav-toggle__box {
  display: block;
  width: 22px;
}

.nav-toggle__bar {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px 0;
  background: currentColor;
  transition: transform .25s, opacity .25s;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.header-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: rgba(198, 255, 0, .14);
  pointer-events: none;
}

.header-progress__bar {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  box-shadow: 0 0 12px rgba(0, 229, 255, .8);
}

.site-footer {
  margin-top: clamp(4rem, 10vw, 8rem);
  background: var(--bg-panel);
  color: var(--text);
}

.site-footer__line {
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--primary) 55%, var(--alert));
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding: 3rem 0 2.5rem;
}

.site-footer__brand {
  display: grid;
  gap: .75rem;
  align-content: start;
  min-width: 0;
}

.site-footer__brand-link {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  color: var(--white);
}

.site-footer__brand-link:hover {
  color: var(--white);
}

.site-footer__statement {
  max-width: 36rem;
  color: var(--muted);
  font-size: .9rem;
}

.site-footer__trust {
  max-width: 38rem;
  padding-left: .75rem;
  border-left: 3px solid var(--alert);
  color: var(--muted);
  font-size: .82rem;
}

.site-footer__col {
  min-width: 0;
}

.site-footer__title {
  margin-bottom: 1rem;
  padding-left: .65rem;
  border-left: 3px solid var(--alert);
  color: var(--primary);
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.site-footer__list li {
  margin-bottom: .5rem;
}

.site-footer__list a {
  color: var(--muted);
  font-size: .95rem;
  transition: color .2s, padding-left .2s;
}

.site-footer__list a:hover {
  color: var(--primary);
  padding-left: .25rem;
}

.site-footer__contact-line {
  display: flex;
  gap: .5rem;
  color: var(--text);
  font-size: .92rem;
}

.site-footer__contact-line--note {
  flex-wrap: wrap;
}

.site-footer__contact-label {
  flex-shrink: 0;
  min-width: 4em;
  color: var(--muted);
}

.site-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  background: rgba(0, 0, 0, .25);
}

.site-footer__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem 1.5rem;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  color: var(--muted);
  font-size: .8rem;
}

.site-footer__copyright {
  color: var(--muted);
}

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
}

.site-footer__legal a {
  color: var(--muted);
}

.site-footer__legal a:hover {
  color: var(--accent);
}

.site-footer__icp {
  font-family: var(--font-mono);
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .8rem 1.4rem;
  border: 2px solid transparent;
  background: transparent;
  color: var(--text);
  font-family: var(--font-head);
  font-size: .95rem;
  font-weight: 800;
  line-height: 1.2;
  cursor: pointer;
  transition: transform .25s, box-shadow .25s, background .25s, border-color .25s;
}

.btn--primary {
  background: var(--primary);
  color: var(--ink);
  box-shadow: 0 0 20px rgba(198, 255, 0, .25);
}

.btn--primary:hover {
  transform: translateY(-2px);
  background: var(--white);
  color: var(--ink);
  box-shadow: 0 0 28px rgba(198, 255, 0, .5);
}

.btn--ghost {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0, 229, 255, .04);
}

.btn--ghost:hover {
  transform: translateY(-2px);
  background: rgba(0, 229, 255, .14);
  color: var(--accent);
}

.btn--data {
  padding: .6rem .8rem;
  border-color: var(--primary);
  background: var(--bg-panel);
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: .85rem;
}

.btn--data:hover {
  background: rgba(198, 255, 0, .1);
  color: var(--primary);
}

.panel {
  padding: 1.5rem;
  background: var(--bg-panel);
  border: 1px solid rgba(255, 255, 255, .06);
  border-left: 3px solid var(--accent);
}

.panel--green {
  border-left-color: var(--primary);
}

.panel--orange {
  border-left-color: var(--alert);
}

.panel--glow {
  box-shadow: 0 0 30px rgba(0, 229, 255, .08);
}

.panel--skew {
  transform: rotate(-1.2deg);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .3rem .55rem;
  border: 1px solid rgba(0, 229, 255, .4);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: .75rem;
}

.tag--live {
  border-color: rgba(198, 255, 0, .4);
  color: var(--primary);
}

.tag--alert {
  border-color: rgba(255, 109, 0, .4);
  color: var(--alert);
}

.tag::before {
  content: "//";
  opacity: .55;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
}

.grid__item {
  grid-column: span 12;
  min-width: 0;
}

.image-placeholder {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(0, 229, 255, .18), rgba(198, 255, 0, .08));
  border: 1px solid rgba(0, 229, 255, .3);
}

.image-placeholder::after {
  content: attr(data-label);
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: .45rem .6rem;
  background: rgba(0, 0, 0, .65);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .04em;
}

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

.image-placeholder--wide {
  aspect-ratio: 21 / 9;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem .75rem;
  padding: 1.5rem 0 .75rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .04em;
  list-style: none;
  text-transform: uppercase;
}

.breadcrumb__item {
  display: inline-flex;
}

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: .75rem;
  color: var(--alert);
}

.breadcrumb__link {
  color: var(--accent);
}

.breadcrumb__link:hover {
  color: var(--primary);
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}

.js [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

@media (min-width: 768px) {
  .grid__item--3 { grid-column: span 3; }
  .grid__item--4 { grid-column: span 4; }
  .grid__item--6 { grid-column: span 6; }
  .grid__item--7 { grid-column: span 7; }
  .grid__item--8 { grid-column: span 8; }
  .grid__item--9 { grid-column: span 9; }
}

@media (min-width: 760px) {
  .site-footer__grid {
    grid-template-columns: 1.4fr 1fr 1.2fr;
    gap: 3rem;
  }

  .site-footer__meta {
    flex-wrap: nowrap;
  }
}

@media (max-width: 1100px) {
  .header-live {
    display: none;
  }
}

@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    display: block;
    margin: 0;
    padding: 0;
    background: rgba(10, 10, 10, .98);
    border-bottom: 2px solid var(--primary);
    box-shadow: 0 24px 40px rgba(0, 0, 0, .5);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-12px);
    transition: transform .25s, opacity .25s, visibility .25s;
  }

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

  .nav-list {
    display: grid;
    gap: 0;
    padding: 1rem var(--gutter) 1.4rem;
  }

  .nav-list__item + .nav-list__item {
    border-top: 1px solid rgba(255, 255, 255, .06);
  }

  .nav-list__link {
    display: flex;
    align-items: center;
    padding: .85rem .25rem;
    font-size: 1.05rem;
  }

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

  .brand-name__en {
    display: none;
  }
}

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

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

  .live-badge__dot {
    animation: none;
  }

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