*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 1rem; line-height: 1.7; color: #16212E; background-color: #E8ECF1; -webkit-font-smoothing: antialiased; }
main { display: block; }
img, svg { max-width: 100%; display: block; }
ul, ol, p, h1, h2, h3, h4, figure { margin-top: 0; }
h1, h2, h3, h4 { margin-bottom: .75rem; font-family: "Barlow Condensed", "Archivo", "PingFang SC", "Microsoft YaHei", sans-serif; font-weight: 900; line-height: 1.12; color: inherit; }
h1 { font-size: clamp(2.5rem, 6vw, 5rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.8rem); }
h3 { font-size: 1.4rem; }
a { color: #0B1E3B; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: .2em; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a:focus-visible, button:focus-visible { outline: 3px solid #FF6B2C; outline-offset: 2px; }
:root {
  --arena-blue: #0B1E3B;
  --electric-green: #00E5A0;
  --voltage-orange: #FF6B2C;
  --ice-light: #E8ECF1;
  --carbon-text: #16212E;
  --mist-gray: #F7F9FC;
  --steel-muted: #506070;
  --line-blue: #2E4A6E;
  --white-ice: #FFFFFF;
  --shadow-dark: #0A1526;
  --font-headline: "Barlow Condensed", "Archivo", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", "SFMono-Regular", monospace;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
}
.container { width: 100%; max-width: 1200px; margin-inline: auto; padding-inline: 1.5rem; }
.skip-link { position: absolute; top: -120px; left: 1rem; z-index: 1100; display: inline-flex; align-items: center; min-height: 44px; padding: .55rem 1.2rem; border-radius: 999px; background: var(--electric-green); color: var(--shadow-dark); font-family: var(--font-headline); font-size: 1rem; font-weight: 800; text-decoration: none; transition: top .25s ease; }
.skip-link:focus, .skip-link:focus-visible { top: 1rem; outline: none; box-shadow: 0 0 0 4px rgba(0, 229, 160, .4); }
.site-header { position: sticky; top: 0; z-index: 1000; background: var(--arena-blue); border-bottom: 1px solid var(--line-blue); box-shadow: 0 4px 18px rgba(10, 21, 38, .25); }
.site-header::before { content: ""; position: absolute; top: 0; right: 0; width: 260px; height: 100%; pointer-events: none; background: repeating-linear-gradient(-45deg, rgba(255, 255, 255, .03) 0 2px, transparent 2px 10px); opacity: .55; }
.site-header::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 3px; background: linear-gradient(90deg, var(--electric-green) 0 65%, var(--voltage-orange) 65% 100%); z-index: 2; }
.header-inner { position: relative; z-index: 1; display: flex; align-items: center; gap: 1.5rem; min-height: 76px; }
.brand { display: inline-flex; align-items: center; gap: .85rem; flex-shrink: 0; text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand svg { height: 40px; width: auto; }
.brand-slogan { font-family: var(--font-headline); font-size: .74rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--electric-green); border-left: 1px solid var(--line-blue); padding-left: .85rem; white-space: nowrap; }
.header-nav { flex: 1 1 auto; display: flex; justify-content: center; }
.nav-list { display: flex; flex-wrap: wrap; justify-content: center; gap: .15rem; list-style: none; margin: 0; padding: 0; counter-reset: nav-index; }
.nav-link { display: inline-flex; align-items: center; gap: .3rem; min-height: 44px; padding: .5rem .85rem; border-radius: 999px; font-family: var(--font-headline); font-size: 1.12rem; font-weight: 700; letter-spacing: .02em; line-height: 1.2; color: rgba(232, 236, 241, .8); text-decoration: none; transition: background-color .25s ease, color .25s ease, transform .25s ease; }
.nav-link::before { counter-increment: nav-index; content: counter(nav-index, decimal-leading-zero); font-family: var(--font-mono); font-size: .68rem; font-weight: 600; color: var(--electric-green); opacity: .7; }
.nav-link:hover { background: rgba(232, 236, 241, .1); color: var(--white-ice); transform: translateY(-1px); text-decoration: none; }
.nav-link[aria-current="page"] { color: var(--electric-green); background: rgba(0, 229, 160, .12); }
.header-actions { display: flex; align-items: center; gap: .75rem; flex-shrink: 0; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; min-height: 46px; padding: .68rem 1.35rem; border: 1px solid transparent; border-radius: 999px; font-family: var(--font-headline); font-size: 1.05rem; font-weight: 800; letter-spacing: .04em; line-height: 1; text-decoration: none; transition: transform .3s ease, box-shadow .3s ease, background-color .3s ease, color .3s ease, border-color .3s ease; }
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--electric-green); color: var(--shadow-dark); }
.btn-primary:hover { background: var(--white-ice); transform: translateY(-2px); box-shadow: 0 10px 22px rgba(0, 229, 160, .3); }
.btn-secondary { background: transparent; color: var(--white-ice); border-color: var(--electric-green); }
.btn-secondary:hover { background: var(--electric-green); color: var(--shadow-dark); transform: translateY(-2px); }
.btn-dark { background: var(--arena-blue); color: var(--white-ice); }
.btn-dark:hover { background: var(--shadow-dark); transform: translateY(-2px); box-shadow: 0 10px 20px rgba(10, 21, 38, .3); }
.btn-cta { min-height: 44px; padding: .55rem 1.15rem; font-size: 1rem; }
.nav-toggle { display: none; align-items: center; gap: .55rem; min-width: 44px; min-height: 44px; padding: .5rem .8rem; border: 1px solid var(--line-blue); border-radius: 999px; background: transparent; color: var(--white-ice); font-family: var(--font-headline); font-size: 1rem; font-weight: 700; letter-spacing: .04em; transition: background-color .25s ease, border-color .25s ease; }
.nav-toggle:hover { background: rgba(232, 236, 241, .1); border-color: var(--electric-green); }
.nav-toggle-icon { width: 20px; height: 16px; display: inline-flex; flex-direction: column; justify-content: space-between; }
.nav-toggle-line { display: block; height: 2px; width: 100%; border-radius: 2px; background: currentColor; transition: transform .3s ease, opacity .3s ease; }
.nav-toggle[aria-expanded="true"] .nav-toggle-line-1 { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-line-2 { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-line-3 { transform: translateY(-7px) rotate(-45deg); }
.nav-toggle-text { font-size: .95rem; }
.scroll-progress { position: fixed; top: 0; left: 0; height: 4px; width: 0; z-index: 1050; background: linear-gradient(90deg, var(--electric-green), var(--voltage-orange)); pointer-events: none; }
@media (max-width: 860px) {
  .header-inner { flex-wrap: wrap; gap: .5rem 1rem; padding-top: .5rem; padding-bottom: .5rem; }
  .brand svg { height: 36px; }
  .header-actions { margin-left: auto; }
  .nav-toggle { display: inline-flex; }
  .header-nav { order: 3; flex: 1 1 100%; width: 100%; max-height: 0; overflow: hidden; opacity: 0; transition: max-height .4s ease, opacity .3s ease; }
  .header-nav[data-open="true"] { max-height: 560px; opacity: 1; overflow-y: auto; }
  .nav-list { flex-direction: column; align-items: stretch; gap: .2rem; padding: .75rem 0 .25rem; }
  .nav-link { width: 100%; min-height: 46px; justify-content: flex-start; border-radius: 14px; padding: .65rem .9rem; font-size: 1.1rem; }
}
@media (max-width: 520px) {
  .brand-slogan { display: none; }
  .brand svg { width: 142px; height: auto; }
  .header-actions { gap: .5rem; }
  .btn-cta { padding: .5rem .85rem; font-size: .92rem; }
  .nav-toggle-text { display: none; }
}
.site-footer { position: relative; margin-top: 5rem; background: var(--arena-blue); color: rgba(232, 236, 241, .85); font-size: .95rem; }
.site-footer::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 10px; background: repeating-linear-gradient(135deg, var(--electric-green) 0 12px, var(--voltage-orange) 12px 24px); opacity: .8; }
.site-footer a { color: rgba(232, 236, 241, .82); text-decoration: none; transition: color .25s ease; }
.site-footer a:hover { color: var(--electric-green); text-decoration: none; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1.1fr; gap: 2.5rem; padding-top: 3.5rem; padding-bottom: 3rem; }
.footer-col { min-width: 0; }
.footer-brand { margin-bottom: 1.25rem; }
.footer-about { font-size: 1.02rem; font-weight: 600; color: var(--white-ice); line-height: 1.5; margin-bottom: 1rem; }
.trust-statement { position: relative; padding: 1rem 1.1rem; border: 1px solid var(--line-blue); border-left: 3px solid var(--electric-green); border-radius: var(--radius-md); background: rgba(10, 21, 38, .45); font-size: .85rem; line-height: 1.7; color: rgba(232, 236, 241, .72); }
.footer-heading { display: flex; align-items: center; gap: .55rem; margin: .25rem 0 1.1rem; font-family: var(--font-headline); font-size: 1.15rem; font-weight: 800; letter-spacing: .06em; color: var(--white-ice); }
.footer-heading-icon { display: inline-block; width: 8px; height: 8px; transform: rotate(45deg); border-radius: 2px; background: var(--electric-green); }
.footer-link-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: .4rem .8rem; }
.footer-link-list a { display: inline-block; padding: .25rem 0; }
.contact-list { list-style: none; margin: 0 0 1rem; padding: 0; }
.contact-list li { display: grid; grid-template-columns: 2.2em 1fr; gap: .4rem; margin-bottom: .55rem; line-height: 1.55; }
.contact-label { color: var(--electric-green); font-family: var(--font-headline); font-weight: 700; letter-spacing: .04em; }
.contact-value { word-break: break-word; }
.mono-value { font-family: var(--font-mono); color: var(--white-ice); }
.footer-worktime { margin: .75rem 0 .4rem; color: rgba(232, 236, 241, .65); }
.footer-extra { margin: .5rem 0 0; font-size: .78rem; line-height: 1.55; color: rgba(232, 236, 241, .42); }
.footer-bottom { border-top: 1px solid var(--line-blue); background: var(--shadow-dark); }
.footer-legal { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; padding-top: 1.1rem; padding-bottom: 1.1rem; }
.legal-links { display: flex; flex-wrap: wrap; gap: 1.25rem; list-style: none; margin: 0; padding: 0; }
.legal-links a { font-size: .85rem; color: rgba(232, 236, 241, .6); }
.footer-copy { margin: 0; font-size: .85rem; color: rgba(232, 236, 241, .8); }
.footer-icp { margin: 0 0 0 auto; font-family: var(--font-mono); font-size: .78rem; color: rgba(232, 236, 241, .5); }
@media (max-width: 860px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-brand-col { grid-column: 1 / -1; }
  .footer-link-list { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-legal { flex-direction: column; align-items: flex-start; }
  .footer-icp { margin-left: 0; }
}
.section { padding: clamp(3rem, 6vw, 5rem) 0; }
.section-panel { position: relative; overflow: hidden; background: var(--white-ice); border-radius: var(--radius-lg); padding: 2.25rem; box-shadow: 0 14px 40px rgba(10, 21, 38, .08); }
.section-panel::before { content: ""; position: absolute; top: 0; left: 0; width: 6px; height: 100%; background: linear-gradient(180deg, var(--electric-green), var(--voltage-orange)); }
.section-head { display: flex; align-items: flex-end; flex-wrap: wrap; gap: 1.25rem; margin-bottom: 2rem; }
.section-num { font-family: var(--font-mono); font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 800; line-height: 1; color: var(--electric-green); }
.section-kicker { margin-bottom: .1rem; font-family: var(--font-headline); font-size: .82rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--steel-muted); }
.section-title { margin: 0; letter-spacing: .02em; }
.section-lead { max-width: 640px; color: var(--steel-muted); font-size: 1.05rem; }
.section-blue { background: var(--arena-blue); color: var(--white-ice); }
.section-blue .section-kicker { color: var(--electric-green); }
.section-blue .section-lead { color: rgba(232, 236, 241, .75); }
.section-light { background: var(--mist-gray); }
.speed-lines { height: 6px; border-radius: 999px; background: repeating-linear-gradient(-45deg, var(--electric-green) 0 10px, var(--voltage-orange) 10px 20px, transparent 20px 28px); border: 0; }
.card { background: var(--white-ice); border: 1px solid var(--mist-gray); border-radius: var(--radius-md); padding: 1.5rem 1.6rem; box-shadow: 0 4px 14px rgba(10, 21, 38, .05); transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease; }
.card-hover:hover { transform: translateY(-4px); box-shadow: 0 18px 34px rgba(10, 21, 38, .12); border-color: rgba(0, 229, 160, .45); }
.card-dark { background: var(--arena-blue); border-color: var(--line-blue); color: var(--white-ice); }
.tag { display: inline-flex; align-items: center; gap: .35rem; padding: .28rem .85rem; border-radius: 999px; font-family: var(--font-headline); font-size: .85rem; font-weight: 700; line-height: 1.2; background: var(--mist-gray); color: var(--carbon-text); }
.tag-green { background: var(--electric-green); color: var(--shadow-dark); }
.tag-orange { background: var(--voltage-orange); color: var(--white-ice); }
.tag-outline { background: transparent; border: 1px solid var(--line-blue); color: var(--steel-muted); }
.data-panel { position: relative; overflow: hidden; background: var(--shadow-dark); border-radius: var(--radius-md); padding: 1.4rem 1.6rem; color: var(--white-ice); }
.data-panel::after { content: ""; position: absolute; right: -24px; bottom: -32px; width: 110px; height: 110px; border-radius: 50%; background: radial-gradient(circle, rgba(0, 229, 160, .14), transparent 70%); pointer-events: none; }
.data-label { font-family: var(--font-headline); font-size: .86rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: rgba(232, 236, 241, .65); }
.data-value { margin-top: .3rem; font-family: var(--font-mono); font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 700; line-height: 1.1; color: var(--electric-green); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
@media (max-width: 860px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}
.media-frame { position: relative; display: flex; align-items: center; justify-content: center; overflow: hidden; border-radius: var(--radius-md); background: linear-gradient(135deg, var(--line-blue), var(--shadow-dark)); aspect-ratio: 16 / 9; }
.media-frame::before { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(-45deg, rgba(255, 255, 255, .035) 0 10px, transparent 10px 20px); }
.media-frame::after { content: attr(data-placeholder); position: relative; color: rgba(232, 236, 241, .55); font-family: var(--font-mono); font-size: .72rem; letter-spacing: .35em; text-transform: uppercase; }
.media-frame img { position: relative; width: 100%; height: 100%; object-fit: cover; }
.media-4-3 { aspect-ratio: 4 / 3; }
.media-1-1 { aspect-ratio: 1 / 1; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: .35rem; list-style: none; margin: 0 0 1.75rem; padding: 0; font-size: .88rem; }
.breadcrumb-item { display: inline-flex; align-items: center; }
.breadcrumb-item + .breadcrumb-item::before { content: "→"; margin: 0 .5rem; color: var(--steel-muted); font-size: .75rem; }
.breadcrumb-item a { color: var(--steel-muted); transition: color .25s ease; }
.breadcrumb-item a:hover { color: var(--arena-blue); }
.breadcrumb-item[aria-current="page"] { color: var(--carbon-text); font-weight: 600; }
.breadcrumb-dark .breadcrumb-item a, .breadcrumb-dark .breadcrumb-item + .breadcrumb-item::before { color: rgba(232, 236, 241, .7); }
.breadcrumb-dark .breadcrumb-item a:hover { color: var(--electric-green); }
.content-article { max-width: 820px; font-size: 1.05rem; }
.content-article p { margin-bottom: 1.25rem; line-height: 1.85; color: var(--carbon-text); }
.content-article h2 { margin-top: 2.5rem; }
.content-article h3 { margin-top: 2rem; }
.js [data-reveal]:not([data-revealed="true"]) { opacity: 0; transform: translateY(22px); }
[data-reveal] { transition: opacity .55s ease, transform .55s ease; will-change: opacity, transform; }
[data-reveal][data-revealed="true"] { opacity: 1; transform: 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; transition-delay: 0s !important; }
  .js [data-reveal]:not([data-revealed="true"]) { opacity: 1; transform: none; transition: none; }
}