:root {
  --ink: #101b2d;
  --ink-soft: #314158;
  --muted: #66748a;
  --paper: #f6f7f2;
  --paper-2: #eef1ec;
  --white: #ffffff;
  --line: #dce2dd;
  --lime: #d6ff65;
  --aqua: #a3eee8;
  --orange: #ffbf73;
  --shadow: 0 18px 45px rgba(16, 27, 45, 0.1);
  --radius-lg: 28px;
  --radius-md: 18px;
  --max: 1180px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--paper); line-height: 1.6; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

.skip-link { position: absolute; left: 1rem; top: -4rem; z-index: 10; padding: .7rem 1rem; background: var(--lime); color: var(--ink); border-radius: 8px; }
.skip-link:focus { top: 1rem; }
.site-shell { overflow: clip; }
.container { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }

.site-header { position: relative; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 1.25rem; width: min(calc(100% - 40px), var(--max)); margin: 0 auto; padding: 22px 0; }
.brand { display: inline-flex; align-items: center; gap: .6rem; font-size: .93rem; font-weight: 800; letter-spacing: .09em; }
.brand-mark { display: grid; place-items: center; width: 31px; height: 31px; border-radius: 10px; background: var(--ink); color: var(--lime); font-size: .8rem; letter-spacing: -.08em; }
.brand-cn { padding-left: .15rem; color: var(--muted); font-size: .7rem; letter-spacing: .02em; font-weight: 700; }
.desktop-nav { display: flex; align-items: center; gap: 1.35rem; color: var(--ink-soft); font-size: .82rem; font-weight: 700; }
.desktop-nav a, .mobile-nav a { transition: color .18s ease; }
.desktop-nav a:hover, .desktop-nav a[aria-current="page"], .mobile-nav a:hover, .mobile-nav a[aria-current="page"] { color: #577200; }
.header-actions { display: flex; align-items: center; gap: .8rem; }
.language-switcher { display: inline-flex; align-items: center; gap: .28rem; color: var(--muted); font-size: .7rem; font-weight: 800; letter-spacing: .04em; white-space: nowrap; }
.language-switcher a { transition: color .18s ease; }
.language-switcher a:hover, .language-switcher a.is-active { color: var(--ink); }
.section-dark .language-switcher a:hover, .section-dark .language-switcher a.is-active { color: var(--lime); }
.menu-button { display: none; border: 1px solid var(--line); background: var(--white); color: var(--ink); width: 42px; height: 42px; border-radius: 12px; cursor: pointer; }
.mobile-nav { display: none; }

.button { display: inline-flex; align-items: center; justify-content: center; gap: .6rem; min-height: 48px; padding: .7rem 1.1rem; border: 1px solid transparent; border-radius: 999px; color: var(--ink); background: var(--lime); font-size: .84rem; font-weight: 800; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(16, 27, 45, .12); }
.button-secondary { color: var(--ink); background: transparent; border-color: var(--line); }
.button-secondary:hover { background: var(--white); }
.button-dark { color: var(--paper); background: var(--ink); }
.button-sm { min-height: 40px; padding: .55rem .95rem; font-size: .76rem; }
.arrow { font-size: 1.05em; }

.hero { padding: 58px 0 68px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, .94fr) minmax(420px, .76fr); gap: clamp(2.5rem, 7vw, 7.2rem); align-items: center; }
.eyebrow, .label { color: #6a8507; font-size: .72rem; font-weight: 850; letter-spacing: .15em; text-transform: uppercase; }
.eyebrow::before { display: inline-block; width: 25px; height: 1px; margin: 0 .65rem .25rem 0; content: ""; background: currentColor; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { letter-spacing: -.04em; line-height: 1.08; }
h1 { max-width: 700px; margin-bottom: 1.4rem; font-size: clamp(3.2rem, 6.1vw, 6.25rem); font-weight: 760; }
h2 { margin-bottom: 1.1rem; font-size: clamp(2.15rem, 4vw, 4.2rem); }
h3 { margin-bottom: .65rem; font-size: 1.35rem; }
.lead { max-width: 590px; color: var(--ink-soft); font-size: clamp(1.06rem, 1.4vw, 1.23rem); line-height: 1.7; }
.hero-copy .lead { margin-bottom: 1.7rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; }
.status-row { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: 1.65rem; }
.status { display: inline-flex; align-items: center; gap: .45rem; padding: .42rem .68rem; border: 1px solid rgba(16, 27, 45, .13); border-radius: 999px; color: var(--ink-soft); background: rgba(255,255,255,.48); font-size: .72rem; font-weight: 750; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: #82a607; box-shadow: 0 0 0 4px rgba(214,255,101,.46); }

.signal-card { position: relative; min-height: 490px; padding: 20px; border-radius: var(--radius-lg); color: var(--paper); background: var(--ink); box-shadow: var(--shadow); isolation: isolate; }
.signal-card::after { position: absolute; z-index: -1; top: 5%; right: -9%; width: 180px; height: 180px; border-radius: 50%; content: ""; background: rgba(163,238,232,.23); filter: blur(14px); }
.signal-top, .signal-bottom { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.signal-top { padding-bottom: 18px; border-bottom: 1px solid rgba(255,255,255,.15); color: #c0cad6; font-size: .68rem; font-weight: 800; letter-spacing: .14em; }
.signal-live { display: inline-flex; align-items: center; gap: .42rem; color: var(--lime); letter-spacing: .06em; }
.signal-live::before { width: 7px; height: 7px; border-radius: 50%; content: ""; background: var(--lime); }
.signal-main { display: grid; grid-template-columns: 1fr 1fr; gap: 11px; margin-top: 11px; }
.metric-card { min-height: 154px; padding: 17px; border: 1px solid rgba(255,255,255,.12); border-radius: 17px; background: #1b2a42; }
.metric-card.accent { background: var(--lime); color: var(--ink); }
.metric-card.aqua { background: var(--aqua); color: var(--ink); }
.metric-label { display: block; margin-bottom: 1.45rem; font-size: .66rem; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; opacity: .72; }
.metric-value { display: block; font-size: 2.05rem; font-weight: 750; letter-spacing: -.06em; }
.metric-note { font-size: .68rem; font-weight: 700; opacity: .7; }
.signal-chart { position: relative; min-height: 180px; margin-top: 11px; padding: 18px; border: 1px solid rgba(255,255,255,.12); border-radius: 17px; background: #1b2a42; }
.chart-title { display: flex; justify-content: space-between; margin-bottom: 18px; color: #c0cad6; font-size: .68rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.bars { display: flex; align-items: end; gap: 10px; height: 93px; padding: 0 4px 5px; border-bottom: 1px solid rgba(255,255,255,.17); }
.bar { width: 100%; border-radius: 5px 5px 1px 1px; background: var(--aqua); }
.bar:nth-child(1) { height: 37%; opacity: .45; }.bar:nth-child(2) { height: 56%; opacity: .62; }.bar:nth-child(3) { height: 46%; opacity: .58; }.bar:nth-child(4) { height: 74%; opacity: .76; }.bar:nth-child(5) { height: 63%; opacity: .69; }.bar:nth-child(6) { height: 92%; background: var(--lime); }.bar:nth-child(7) { height: 80%; background: var(--lime); opacity: .85; }
.signal-bottom { position: absolute; right: 20px; bottom: 20px; left: 20px; color: #c0cad6; font-size: .68rem; }
.signal-bottom strong { color: var(--white); font-size: .8rem; }

.section { padding: 104px 0; }
.section-tight { padding: 78px 0; }
.section-dark { color: var(--paper); background: var(--ink); }
.section-aqua { background: var(--aqua); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 2rem; margin-bottom: 42px; }
.section-head h2 { max-width: 680px; margin-bottom: 0; }
.section-head p { max-width: 395px; margin-bottom: 0; color: var(--muted); }
.section-dark .section-head p { color: #b3c0d0; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.feature-card { min-height: 300px; padding: 26px; border: 1px solid var(--line); border-radius: var(--radius-md); background: rgba(255,255,255,.62); }
.feature-card.dark-card { border-color: rgba(255,255,255,.14); background: #1b2a42; }
.feature-card p { color: var(--muted); font-size: .93rem; }
.dark-card p { color: #b3c0d0; }
.card-index { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4.2rem; color: #8da400; font-size: .72rem; font-weight: 850; letter-spacing: .13em; }
.dark-card .card-index { color: var(--lime); }
.icon-box { display: grid; place-items: center; width: 40px; height: 40px; margin-bottom: 1.1rem; border-radius: 12px; background: var(--lime); color: var(--ink); font-size: 1.2rem; font-weight: 800; }
.icon-box.aqua { background: var(--aqua); }
.icon-box.orange { background: var(--orange); }

.split { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(2rem, 7vw, 8rem); align-items: start; }
.split h2 { max-width: 490px; }
.mini-list { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; }
.mini-list li { display: grid; grid-template-columns: 42px 1fr; gap: 1rem; padding: 20px 0; border-top: 1px solid var(--line); }
.mini-list li:last-child { border-bottom: 1px solid var(--line); }
.mini-list-number { color: #89a400; font-size: .72rem; font-weight: 850; letter-spacing: .11em; }
.mini-list strong { display: block; margin-bottom: .28rem; font-size: 1rem; }
.mini-list p { margin-bottom: 0; color: var(--muted); font-size: .88rem; }

.roadmap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.roadmap-card { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); }
.roadmap-card p { min-height: 74px; margin: 0; color: var(--muted); font-size: .85rem; }
.roadmap-tag { display: inline-flex; margin-bottom: 2.3rem; padding: .28rem .5rem; border-radius: 999px; background: var(--paper-2); color: #708200; font-size: .63rem; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.roadmap-card h3 { font-size: 1.1rem; }

.page-hero { padding: 62px 0 78px; border-bottom: 1px solid var(--line); }
.page-hero-inner { max-width: 820px; }
.page-hero h1 { max-width: 820px; font-size: clamp(3rem, 6vw, 5.8rem); }
.page-hero .lead { max-width: 680px; }
.page-label { display: inline-flex; align-items: center; gap: .5rem; margin-bottom: 1.45rem; color: #728900; font-size: .7rem; font-weight: 850; letter-spacing: .15em; text-transform: uppercase; }
.page-label::before { width: 7px; height: 7px; border-radius: 50%; content: ""; background: var(--lime); }
.content-grid { display: grid; grid-template-columns: minmax(180px, .3fr) minmax(0, 1fr); gap: clamp(2rem, 8vw, 8rem); }
.content-aside { position: sticky; top: 25px; align-self: start; }
.aside-kicker { color: #839900; font-size: .7rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.aside-note { color: var(--muted); font-size: .82rem; }
.content { max-width: 760px; }
.content h2 { margin-top: 2.4rem; font-size: 2rem; }
.content h2:first-child { margin-top: 0; }
.content h3 { margin-top: 1.8rem; font-size: 1.12rem; letter-spacing: -.02em; }
.content p, .content li { color: var(--ink-soft); font-size: .96rem; }
.content ul { padding-left: 1.25rem; }
.content li { margin: .45rem 0; }
.content strong { color: var(--ink); }
.section-dark .content p, .section-dark .content li { color: #b3c0d0; }
.section-dark .content strong { color: var(--white); }
.section-dark .content a { color: var(--aqua); }
.note-box { margin: 1.7rem 0; padding: 18px 20px; border-left: 3px solid #9abb00; border-radius: 0 14px 14px 0; background: #eaf4bb; color: var(--ink-soft); font-size: .9rem; }
.dark-note { background: #1b2a42; color: #d5e0eb; }
.dark-note strong { color: var(--lime); }
.check-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; margin-top: 1.3rem; }
.check-item { padding: 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--white); }
.check-item strong { display: block; margin-bottom: .25rem; font-size: .9rem; }
.check-item span { color: var(--muted); font-size: .82rem; }

.cta-band { padding: 80px 0; color: var(--paper); background: var(--ink); }
.cta-inner { display: flex; align-items: end; justify-content: space-between; gap: 2rem; }
.cta-band h2 { max-width: 680px; margin-bottom: 0; }
.cta-band .button-secondary { border-color: rgba(255,255,255,.26); color: var(--paper); }
.cta-band .button-secondary:hover { color: var(--ink); }

.contact-card { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.contact-item { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); }
.contact-item .label { display: block; margin-bottom: 1.7rem; }
.contact-item strong { display: block; font-size: 1.05rem; word-break: break-word; }
.contact-item p { margin: .35rem 0 0; color: var(--muted); font-size: .82rem; }

.site-footer { padding: 30px 0 36px; border-top: 1px solid var(--line); }
.footer-top { display: flex; justify-content: space-between; gap: 2rem; padding-bottom: 28px; }
.footer-copy { max-width: 300px; color: var(--muted); font-size: .8rem; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: end; gap: .75rem 1.25rem; max-width: 580px; color: var(--ink-soft); font-size: .8rem; font-weight: 700; }
.footer-links a:hover { color: #688000; }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: .72rem; }
.footer-beta { display: inline-flex; align-items: center; gap: .4rem; }
.footer-beta::before { width: 6px; height: 6px; border-radius: 50%; content: ""; background: #9abb00; }

@media (max-width: 920px) {
  .desktop-nav { display: none; }
  .header-actions .button { display: none; }
  .menu-button { display: inline-grid; place-items: center; }
  .mobile-nav { display: none; width: min(calc(100% - 40px), var(--max)); margin: -4px auto 0; padding: 12px; border: 1px solid var(--line); border-radius: 16px; background: var(--white); box-shadow: var(--shadow); }
  .mobile-nav.is-open { display: grid; }
  .mobile-nav a { padding: 10px 8px; color: var(--ink-soft); font-size: .88rem; font-weight: 750; }
  .mobile-nav .language-switcher { padding: 11px 8px 7px; border-top: 1px solid var(--line); }
  .hero-grid { grid-template-columns: 1fr; gap: 3rem; }
  .hero { padding-top: 38px; }
  .signal-card { max-width: 620px; }
  .roadmap { grid-template-columns: repeat(2, 1fr); }
  .content-grid { grid-template-columns: 1fr; gap: 1rem; }
  .content-aside { position: static; }
}
@media (max-width: 640px) {
  .container, .site-header, .mobile-nav { width: min(calc(100% - 30px), var(--max)); }
  .hero { padding: 28px 0 54px; }
  h1 { font-size: clamp(2.8rem, 15vw, 4.6rem); }
  .page-hero h1 { font-size: clamp(2.8rem, 13vw, 4.6rem); }
  .section, .section-tight { padding: 66px 0; }
  .section-head, .cta-inner, .footer-top, .footer-bottom { display: block; }
  .section-head p { margin-top: 1rem; }
  .card-grid, .contact-card, .check-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: auto; }
  .card-index { margin-bottom: 2rem; }
  .signal-card { min-height: 420px; padding: 14px; }
  .metric-card { min-height: 130px; padding: 13px; }
  .metric-label { margin-bottom: 1rem; font-size: .58rem; }
  .metric-value { font-size: 1.65rem; }
  .signal-chart { min-height: 145px; padding: 13px; }
  .bars { height: 70px; gap: 6px; }
  .cta-inner .button { margin-top: 1.5rem; }
  .footer-links { justify-content: start; margin-top: 1.7rem; }
  .footer-links .language-switcher { flex-basis: 100%; margin-top: .25rem; }
  .footer-bottom { padding-bottom: 0; }
  .footer-bottom span + span { display: block; margin-top: .5rem; }
  .split { grid-template-columns: 1fr; gap: 2rem; }
}