:root {
  --ink: #111916;
  --ink-soft: #19231f;
  --paper: #f3f5ef;
  --paper-deep: #e6ebe2;
  --white: #ffffff;
  --muted: #667068;
  --line: #bec8bf;
  --line-dark: #34413a;
  --lime: #c7ef43;
  --mint: #43c79d;
  --cyan: #45bdd0;
  --coral: #a93630;
  --gold: #efc24e;
  --violet: #9b8cf0;
  --muted-on-dark: #aab7ae;
  --max: 1180px;
  --gutter: 5vw;
  --radius: 4px;
  --sans: "Microsoft YaHei UI", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  --mono: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); line-height: 1.65; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; }
::selection { background: var(--lime); color: var(--ink); }

.skip-link { position: fixed; top: -80px; left: 18px; z-index: 100; padding: 10px 14px; background: var(--lime); color: var(--ink); font-weight: 800; }
.skip-link:focus { top: 18px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; border: 0; }
.container { width: min(var(--max), calc(100% - (var(--gutter) * 2))); margin-inline: auto; }
.mono { font-family: var(--mono); }
.eyebrow { margin: 0 0 18px; color: var(--coral); font: 700 11px/1.2 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.eyebrow.light { color: var(--lime); }
.muted { color: var(--muted); }
.risk-text { color: var(--muted); font-size: 13px; }
.section-title { max-width: 760px; margin: 0; font-size: 42px; line-height: 1.12; letter-spacing: 0; }
.section-intro { max-width: 700px; margin: 20px 0 0; color: var(--muted); font-size: 17px; }

.site-header { position: sticky; top: 0; z-index: 40; border-bottom: 1px solid var(--line-dark); background: rgba(17,25,22,.96); color: var(--white); }
.nav-shell { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font: 800 13px/1 var(--mono); letter-spacing: .09em; }
.brand-mark { width: 12px; height: 12px; background: var(--lime); box-shadow: 7px 7px 0 var(--coral); }
.main-nav { display: flex; align-items: center; gap: 26px; font-size: 13px; }
.main-nav a { color: #dce4dd; }
.main-nav a:hover { color: var(--lime); }
.nav-contact { display: inline-flex; min-height: 38px; align-items: center; padding: 0 14px; border: 1px solid var(--lime); color: var(--lime) !important; font-weight: 700; }
.nav-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line-dark); background: transparent; font-size: 22px; cursor: pointer; }

.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 12px; padding: 0 20px; border: 1px solid transparent; border-radius: var(--radius); font-size: 13px; font-weight: 800; cursor: pointer; transition: background-color .18s ease, border-color .18s ease, color .18s ease; }
.button-primary { background: var(--lime); color: var(--ink); }
.button-primary:hover { background: var(--white); }
.button-dark { background: var(--ink); color: var(--white); }
.button-dark:hover { background: var(--coral); }
.button-outline { border-color: currentColor; background: transparent; }
.button-outline:hover { color: var(--lime); }
.copy-status { min-height: 20px; margin: 9px 0 0; font: 700 11px/1.4 var(--mono); color: var(--mint); }

.home-hero { position: relative; overflow: hidden; background: var(--ink); color: var(--white); }
.home-hero::after { position: absolute; inset: auto 0 0; height: 1px; background: var(--line-dark); content: ""; }
.hero-inner { position: relative; z-index: 2; min-height: 640px; display: flex; align-items: center; padding-block: 82px 72px; }
.hero-copy { max-width: 780px; }
.hero-brand { margin: 0; font: 900 92px/.9 var(--sans); letter-spacing: 0; }
.hero-value { max-width: 760px; margin: 25px 0 0; font-size: 36px; font-weight: 700; line-height: 1.18; }
.hero-value strong { color: var(--lime); }
.hero-lead { max-width: 620px; margin: 24px 0 0; color: #b8c4bc; font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 34px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 52px; color: var(--muted-on-dark); font: 700 10px/1.3 var(--mono); letter-spacing: .08em; }
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero-meta i { width: 7px; height: 7px; background: var(--mint); border-radius: 50%; }

.market-scene { position: absolute; inset: 0 0 0 auto; width: 58%; opacity: .45; pointer-events: none; }
.market-grid { position: absolute; inset: 0; background-size: 68px 48px; background-image: linear-gradient(var(--line-dark) 1px, transparent 1px), linear-gradient(90deg, var(--line-dark) 1px, transparent 1px); }
.market-level { position: absolute; right: 0; left: 8%; height: 1px; background: currentColor; }
.market-level::after { position: absolute; right: 18px; top: -11px; padding: 3px 7px; background: currentColor; color: var(--ink); font: 800 9px/1 var(--mono); content: attr(data-label); }
.market-level.call { top: 24%; color: var(--coral); }
.market-level.zero { top: 52%; color: var(--gold); }
.market-level.put { top: 78%; color: var(--mint); }
.candles { position: absolute; inset: 15% 10% 12% 8%; }
.candle { position: absolute; bottom: var(--bottom); left: var(--left); width: 13px; height: var(--height); background: var(--color); }
.candle::before { position: absolute; left: 6px; bottom: 100%; width: 1px; height: 24px; background: inherit; content: ""; }
.candle::after { position: absolute; left: 6px; top: 100%; width: 1px; height: 18px; background: inherit; content: ""; }

.signal-strip { background: var(--ink-soft); color: var(--white); }
.signal-grid { display: grid; grid-template-columns: repeat(5, 1fr); }
.signal-item { min-height: 92px; display: flex; align-items: center; gap: 12px; padding: 18px; border-left: 1px solid var(--line-dark); }
.signal-item:last-child { border-right: 1px solid var(--line-dark); }
.signal-item strong { display: block; font: 800 12px/1.3 var(--mono); }
.signal-item span { display: block; margin-top: 4px; color: #8e9b93; font-size: 11px; }
.signal-dot { flex: 0 0 auto; width: 10px; height: 10px; background: var(--lime); }
.signal-item:nth-child(2) .signal-dot { background: var(--cyan); }
.signal-item:nth-child(3) .signal-dot { background: var(--coral); }
.signal-item:nth-child(4) .signal-dot { background: var(--gold); }
.signal-item:nth-child(5) .signal-dot { background: var(--violet); }

.section { padding-block: 88px; }
.section-dark { background: var(--ink); color: var(--white); }
.section-deep { background: var(--paper-deep); }
.section-head { display: flex; justify-content: space-between; gap: 40px; align-items: end; margin-bottom: 42px; }
.section-head .section-intro { margin: 0; max-width: 470px; }

.product-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 14px; }
.product-card { position: relative; min-height: 300px; display: flex; flex-direction: column; justify-content: space-between; padding: 27px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); transition: transform .18s ease, border-color .18s ease; }
.product-card:hover { transform: translateY(-3px); border-color: var(--ink); }
.product-card:nth-child(1), .product-card:nth-child(2) { grid-column: span 6; }
.product-card:nth-child(n+3) { grid-column: span 4; }
.product-number { color: var(--muted); font: 700 10px/1 var(--mono); }
.product-card h3 { margin: 34px 0 11px; font-size: 27px; line-height: 1.1; }
.product-card p { margin: 0; color: var(--muted); font-size: 14px; }
.product-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 28px; }
.product-tags span { padding: 5px 8px; border: 1px solid var(--line); font: 700 9px/1 var(--mono); }
.product-link { margin-top: 28px; font: 800 12px/1 var(--mono); }
.product-card.accent-lime { border-top: 5px solid var(--lime); }
.product-card.accent-cyan { border-top: 5px solid var(--cyan); }
.product-card.accent-coral { border-top: 5px solid var(--coral); }
.product-card.accent-gold { border-top: 5px solid var(--gold); }
.product-card.accent-violet { border-top: 5px solid var(--violet); }

.path-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.path-card { min-height: 310px; padding: 28px; border: 1px solid var(--line-dark); background: var(--ink-soft); }
.path-icon { font: 900 32px/1 var(--mono); color: var(--lime); }
.path-card:nth-child(2) .path-icon { color: var(--cyan); }
.path-card:nth-child(3) .path-icon { color: var(--coral); }
.path-card h3 { margin: 50px 0 13px; font-size: 25px; }
.path-card p { color: #aab7ae; font-size: 14px; }
.path-card a { display: inline-block; margin-top: 18px; color: var(--lime); font: 800 11px/1 var(--mono); }

.pricing-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.price-card { position: relative; padding: 34px; border: 1px solid var(--line); background: var(--white); }
.price-card.featured { border: 2px solid var(--ink); }
.price-badge { position: absolute; top: 0; right: 0; padding: 7px 10px; background: var(--ink); color: var(--lime); font: 800 9px/1 var(--mono); }
.price-name { margin: 0; color: var(--muted); font: 800 11px/1 var(--mono); letter-spacing: .08em; }
.price { margin: 18px 0; font-size: 54px; line-height: 1; }
.price small { font-size: 16px; font-weight: 400; }
.benefit-list { margin: 28px 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.benefit-list li { padding: 11px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.benefit-list li::before { margin-right: 9px; color: var(--mint); content: "+"; font-family: var(--mono); font-weight: 900; }
.benefit-list li.excluded::before { color: var(--coral); content: "−"; }
.service-row { display: grid; grid-template-columns: 1fr auto; gap: 20px; align-items: center; margin-top: 18px; padding: 24px; border: 1px solid var(--line); }
.service-row h3 { margin: 0 0 5px; font-size: 19px; }
.service-row p { margin: 0; color: var(--muted); font-size: 13px; }
.service-action { text-align: right; }

.pipeline { display: grid; grid-template-columns: repeat(7, 1fr); margin: 40px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.pipeline-step { min-height: 150px; padding: 21px 14px; border-left: 1px solid var(--line-dark); }
.pipeline-step:last-child { border-right: 1px solid var(--line-dark); }
.pipeline-step span { color: var(--lime); font: 800 10px/1 var(--mono); }
.pipeline-step strong { display: block; margin-top: 34px; font-size: 14px; line-height: 1.35; }
.section-dark .risk-text { color: var(--muted-on-dark); }

.video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.video-card { border: 1px solid var(--line); background: var(--white); }
.video-visual { position: relative; aspect-ratio: 16/9; display: grid; place-items: center; overflow: hidden; background: var(--ink); color: var(--white); }
.video-visual::before { position: absolute; inset: 0; background-size: 44px 44px; background-image: linear-gradient(var(--line-dark) 1px, transparent 1px), linear-gradient(90deg, var(--line-dark) 1px, transparent 1px); content: ""; }
.play-icon { position: relative; z-index: 1; width: 52px; height: 52px; display: grid; place-items: center; border: 1px solid var(--lime); border-radius: 50%; color: var(--lime); font-size: 19px; }
.video-body { padding: 21px; }
.video-body h3 { margin: 0 0 10px; font-size: 17px; line-height: 1.35; }
.video-body p { margin: 0; color: var(--muted); font-size: 12px; }

.roadmap { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 40px; border-top: 1px solid var(--line-dark); }
.roadmap-item { min-height: 210px; padding: 27px; border-bottom: 1px solid var(--line-dark); border-left: 1px solid var(--line-dark); }
.roadmap-item:last-child { border-right: 1px solid var(--line-dark); }
.roadmap-status { color: var(--gold); font: 800 10px/1 var(--mono); }
.roadmap-item h3 { margin: 45px 0 10px; font-size: 22px; }
.roadmap-item p { margin: 0; color: #aab7ae; font-size: 13px; }

.contact-band { background: var(--lime); color: var(--ink); }
.contact-inner { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: center; padding-block: 60px; }
.contact-inner h2 { max-width: 760px; margin: 0; font-size: 44px; line-height: 1.1; }
.contact-actions { text-align: right; }
.wechat-value { margin-top: 10px; font: 900 18px/1 var(--mono); }

.risk-band { padding-block: 46px; border-top: 1px solid var(--line); background: var(--paper-deep); }
.risk-layout { display: grid; grid-template-columns: 170px 1fr; gap: 40px; }
.risk-layout h2 { margin: 0; font-size: 19px; }
.risk-layout p { margin: 0; color: var(--muted); font-size: 13px; }

.site-footer { background: var(--ink); color: var(--white); }
.footer-grid { display: grid; grid-template-columns: 1.2fr repeat(3, 1fr); gap: 40px; padding-block: 58px; }
.footer-grid h2 { margin: 0 0 13px; font: 900 18px/1 var(--mono); }
.footer-grid h3 { margin: 0 0 14px; color: var(--muted-on-dark); font: 800 10px/1 var(--mono); letter-spacing: .08em; }
.footer-grid p, .footer-grid a { color: #b6c0b9; font-size: 12px; }
.footer-links { display: grid; gap: 8px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-block: 20px; border-top: 1px solid var(--line-dark); color: var(--muted-on-dark); font-size: 11px; }

.page-hero { position: relative; overflow: hidden; padding-block: 82px 70px; background: var(--ink); color: var(--white); }
.page-hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(320px, .8fr); gap: 72px; align-items: center; }
.page-hero h1 { margin: 0; font-size: 64px; line-height: .98; letter-spacing: 0; }
.page-hero .lead { max-width: 650px; margin: 24px 0 0; color: #b7c2ba; font-size: 17px; }
.page-hero .hero-actions { margin-top: 30px; }
.interface-visual { min-height: 330px; padding: 20px; border: 1px solid var(--line-dark); background: var(--ink-soft); font-family: var(--mono); }
.interface-head { display: flex; justify-content: space-between; padding-bottom: 12px; border-bottom: 1px solid var(--line-dark); color: var(--muted-on-dark); font-size: 10px; }
.interface-chart { position: relative; height: 210px; margin-top: 18px; overflow: hidden; border-left: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.interface-chart::before { position: absolute; inset: 0; background-size: 42px 34px; background-image: linear-gradient(var(--line-dark) 1px, transparent 1px), linear-gradient(90deg, var(--line-dark) 1px, transparent 1px); content: ""; }
.chart-line { position: absolute; z-index: 1; left: 0; right: 0; top: var(--top); border-top: 2px var(--style, solid) var(--color); }
.chart-line span { position: absolute; right: 4px; top: -18px; color: var(--color); font-size: 9px; }
.interface-note { margin: 16px 0 0; color: var(--muted-on-dark); font-size: 10px; }

.content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 70px; }
.prose h2 { margin: 0 0 18px; font-size: 34px; line-height: 1.15; }
.prose h3 { margin: 38px 0 12px; font-size: 20px; }
.prose p, .prose li { color: #465048; }
.prose ul, .prose ol { padding-left: 21px; }
.prose table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 13px; }
.prose th, .prose td { padding: 12px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.prose th { background: var(--paper-deep); }
.fact-panel { align-self: start; position: sticky; top: 100px; padding: 25px; border-top: 5px solid var(--lime); background: var(--ink); color: var(--white); }
.fact-panel h2 { margin: 0 0 20px; font-size: 18px; }
.fact-list { margin: 0; }
.fact-list div { padding: 12px 0; border-top: 1px solid var(--line-dark); }
.fact-list dt { color: var(--muted-on-dark); font: 700 9px/1 var(--mono); }
.fact-list dd { margin: 7px 0 0; font-size: 13px; }
.callout { margin: 28px 0; padding: 23px; border-left: 5px solid var(--cyan); background: var(--paper-deep); }
.callout.warning { border-left-color: var(--coral); }
.callout h3 { margin: 0 0 8px; }
.callout p { margin: 0; }
.feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 30px; }
.feature-item { padding: 20px; border: 1px solid var(--line); background: var(--white); }
.feature-item span { color: var(--coral); font: 800 10px/1 var(--mono); }
.feature-item h3 { margin: 22px 0 8px; font-size: 17px; }
.feature-item p { margin: 0; color: var(--muted); font-size: 13px; }

.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; padding: 20px 0; font-weight: 800; }
.faq details p { margin: 0 0 22px; color: var(--muted); }

@media (max-width: 980px) {
  .main-nav { gap: 16px; }
  .hero-brand { font-size: 72px; }
  .market-scene { width: 70%; opacity: .28; }
  .signal-grid { grid-template-columns: repeat(3, 1fr); }
  .signal-item:nth-child(4), .signal-item:nth-child(5) { border-top: 1px solid var(--line-dark); }
  .product-card:nth-child(n) { grid-column: span 6; }
  .pipeline { grid-template-columns: repeat(4, 1fr); }
  .pipeline-step:nth-child(n+5) { border-top: 1px solid var(--line-dark); }
  .page-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .content-grid { grid-template-columns: 1fr; }
  .fact-panel { position: static; }
}

@media (max-width: 760px) {
  :root { --gutter: 7vw; }
  .nav-shell { flex-wrap: wrap; padding-block: 15px; }
  .main-nav { width: 100%; flex-direction: column; align-items: stretch; padding-top: 18px; border-top: 1px solid var(--line-dark); }
  .js .nav-shell { min-height: 72px; flex-wrap: nowrap; padding-block: 0; }
  .js .nav-toggle { display: grid; place-items: center; }
  .js .main-nav { position: fixed; inset: 72px 0 0; width: auto; display: none; overflow-y: auto; padding: 25px var(--gutter); border-top: 0; border-bottom: 1px solid var(--line-dark); background: var(--ink); }
  .js .main-nav.is-open { display: flex; }
  .main-nav a { padding: 9px 0; }
  .nav-contact { justify-content: center; }
  .hero-inner { min-height: 610px; padding-block: 68px 56px; }
  .hero-brand { font-size: 54px; }
  .hero-value { font-size: 29px; }
  .hero-lead { font-size: 15px; }
  .market-scene { width: 100%; opacity: .18; }
  .signal-grid { grid-template-columns: 1fr 1fr; }
  .signal-item:nth-child(n) { border-top: 1px solid var(--line-dark); }
  .signal-item:first-child, .signal-item:nth-child(2) { border-top: 0; }
  .section { padding-block: 64px; }
  .section-head { display: block; }
  .section-head .section-intro { margin-top: 18px; }
  .section-title { font-size: 34px; }
  .product-card:nth-child(n), .path-grid, .pricing-grid, .video-grid, .roadmap, .footer-grid { grid-template-columns: 1fr; }
  .product-card:nth-child(n) { grid-column: span 12; min-height: 260px; }
  .path-grid { display: grid; }
  .price { font-size: 46px; }
  .service-row, .contact-inner, .risk-layout { grid-template-columns: 1fr; }
  .service-action { text-align: left; }
  .contact-actions { text-align: left; }
  .contact-inner h2 { font-size: 34px; }
  .pipeline { grid-template-columns: 1fr 1fr; }
  .pipeline-step:nth-child(n) { border-top: 1px solid var(--line-dark); }
  .page-hero { padding-block: 62px; }
  .page-hero h1 { font-size: 45px; }
  .interface-visual { min-height: 280px; }
  .feature-list { grid-template-columns: 1fr; }
  .footer-bottom { display: block; }
  .footer-bottom span { display: block; margin-top: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}