:root {
  --home-bg: #f5f8fa;
  --home-surface: rgba(255,255,255,.82);
  --home-card: #fff;
  --home-line: #dbe5e9;
  --home-text: #102a33;
  --home-muted: #62777f;
  --home-accent: #087c6b;
  --home-accent-2: #0c9e89;
  --home-soft: #e8f4f1;
  --home-blue: #2773a3;
  --home-shadow: 0 24px 70px rgba(26,64,75,.11);
  --home-header: rgba(245,248,250,.82);
}
:root[data-theme="dark"] {
  --home-bg: #0b151b;
  --home-surface: rgba(17,30,37,.88);
  --home-card: #122129;
  --home-line: #243a43;
  --home-text: #eff8f7;
  --home-muted: #9db1b7;
  --home-accent: #65dfc6;
  --home-accent-2: #37bba4;
  --home-soft: #163832;
  --home-blue: #7bb6df;
  --home-shadow: 0 24px 70px rgba(0,0,0,.28);
  --home-header: rgba(11,21,27,.84);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; min-width: 320px; }
body { margin: 0; background: var(--home-bg); color: var(--home-text); font: 15px/1.65 Inter, "Microsoft YaHei", "PingFang SC", Arial, sans-serif; letter-spacing: 0; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 20; height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; padding: 0 clamp(20px, 5vw, 76px); background: var(--home-header); border-bottom: 1px solid color-mix(in srgb, var(--home-line) 75%, transparent); backdrop-filter: blur(16px); }
.site-brand, .footer-brand { display: inline-flex; align-items: center; gap: 11px; min-width: max-content; }
.site-brand strong, .footer-brand strong { display: block; font-size: 16px; font-weight: 780; letter-spacing: .2px; }
.site-brand small, .footer-brand small { display: block; margin-top: -3px; color: var(--home-muted); font-size: 9px; font-weight: 750; letter-spacing: 1.35px; }
.whale-mark { position: relative; display: inline-grid; place-items: center; width: 38px; height: 38px; color: #fff; background: var(--home-accent); border-radius: 12px 12px 14px 4px; box-shadow: 0 8px 20px color-mix(in srgb, var(--home-accent) 26%, transparent); }
.whale-mark::before { content: "W"; font-size: 17px; font-weight: 850; line-height: 1; }
.whale-mark::after { content: ""; position: absolute; right: -5px; top: 4px; width: 11px; height: 11px; border-top: 3px solid var(--home-accent); border-right: 3px solid var(--home-accent); transform: rotate(22deg); }
.whale-mark i { position: absolute; left: 8px; bottom: -5px; width: 13px; height: 7px; border-bottom: 2px solid var(--home-accent-2); border-radius: 50%; transform: rotate(-14deg); }
.whale-mark.small { width: 30px; height: 30px; border-radius: 9px 9px 11px 3px; }
.whale-mark.small::before { font-size: 13px; }
nav { display: flex; align-items: center; gap: clamp(14px, 2vw, 30px); }
.site-header nav { flex: 1; justify-content: center; }
.site-header nav a { color: var(--home-muted); font-size: 13px; transition: color .2s ease; }
.site-header nav a:hover { color: var(--home-accent); }
.header-actions, .hero-actions, .button-row { display: flex; align-items: center; gap: 10px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 38px; padding: 0 17px; border: 1px solid transparent; border-radius: 7px; font-size: 13px; font-weight: 720; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button.primary { color: #fff; background: var(--home-accent); box-shadow: 0 8px 20px color-mix(in srgb, var(--home-accent) 24%, transparent); }
.button.primary:hover { background: var(--home-accent-2); }
.button.secondary { color: var(--home-text); background: color-mix(in srgb, var(--home-card) 75%, transparent); border-color: var(--home-line); }
.button.large { min-height: 46px; padding: 0 23px; font-size: 14px; }
.icon-button { width: 36px; height: 36px; border: 1px solid var(--home-line); border-radius: 7px; background: var(--home-card); color: var(--home-text); }
.menu-button { display: none; }
.section-band { position: relative; }
.hero { min-height: 760px; display: grid; align-items: center; overflow: hidden; padding: 120px clamp(20px, 6vw, 100px) 76px; border-bottom: 1px solid var(--home-line); }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(112deg, color-mix(in srgb, var(--home-bg) 96%, transparent), color-mix(in srgb, var(--home-bg) 60%, transparent) 56%, transparent 100%); pointer-events: none; }
#market-canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .96; }
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(360px, .9fr) minmax(460px, 1.1fr); align-items: center; gap: clamp(36px, 6vw, 100px); width: min(1320px, 100%); margin: 0 auto; }
.hero-copy { max-width: 610px; }
.eyebrow { margin: 0 0 14px; color: var(--home-accent); font-size: 11px; font-weight: 800; letter-spacing: 1.7px; }
.eyebrow span { display: inline-block; width: 24px; height: 2px; margin-right: 7px; vertical-align: middle; background: var(--home-accent); }
.hero h1 { margin: 0; font-size: clamp(48px, 7vw, 90px); line-height: 1.02; letter-spacing: 0; font-weight: 820; }
.hero-lead { max-width: 550px; margin: 27px 0 30px; color: var(--home-muted); font-size: 17px; }
.hero-facts { display: flex; gap: 28px; margin-top: 31px; color: var(--home-muted); font-size: 12px; }
.hero-facts b { display: block; color: var(--home-text); font-size: 19px; line-height: 1.1; }
.terminal-visual, .preview-stage { overflow: hidden; border: 1px solid color-mix(in srgb, var(--home-line) 90%, transparent); border-radius: 12px; background: var(--home-surface); box-shadow: var(--home-shadow); transition: transform .25s ease; }
.terminal-visual { transform: perspective(1100px) rotateY(-5deg) rotateX(2deg); }
.terminal-bar { display: flex; align-items: center; justify-content: space-between; height: 44px; padding: 0 16px; color: var(--home-muted); border-bottom: 1px solid var(--home-line); font-size: 10px; }
.terminal-bar > div { display: flex; gap: 5px; }.terminal-bar i { width: 7px; height: 7px; border-radius: 50%; background: var(--home-line); }.terminal-bar b { color: var(--home-accent); font-size: 9px; letter-spacing: 1px; }
.terminal-grid { display: grid; grid-template-columns: 48px 1fr; min-height: 330px; }.mini-sidebar { display: flex; flex-direction: column; align-items: center; gap: 17px; padding-top: 18px; border-right: 1px solid var(--home-line); }.mini-sidebar strong { display: grid; place-items: center; width: 25px; height: 25px; color: #fff; background: var(--home-accent); border-radius: 7px; font-size: 11px; }.mini-sidebar i { width: 15px; height: 15px; border: 1px solid var(--home-line); border-radius: 4px; }.mini-sidebar i.active { border-color: var(--home-accent); background: var(--home-soft); }
.terminal-content { padding: 24px 25px; }.terminal-head { display: flex; justify-content: space-between; align-items: end; }.terminal-head small, .metric-row small { display: block; color: var(--home-muted); font-size: 10px; }.terminal-head strong { display: block; margin-top: 4px; font-size: 24px; }.terminal-head span { padding: 4px 8px; color: var(--home-accent); background: var(--home-soft); border-radius: 4px; font-size: 10px; }
.metric-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 19px 0; padding: 13px 0; border-top: 1px solid var(--home-line); border-bottom: 1px solid var(--home-line); }.metric-row b { display: block; margin-top: 3px; font-size: 15px; color: var(--home-text); }.metric-row div:first-child b { color: var(--home-accent); }.demo-chart { position: relative; height: 126px; }.demo-chart svg { width: 100%; height: 100%; }.chart-area { fill: color-mix(in srgb, var(--home-accent) 13%, transparent); }.chart-line { fill: none; stroke: var(--home-accent); stroke-width: 2; }.signal { position: absolute; padding: 3px 6px; color: var(--home-accent); background: var(--home-soft); border: 1px solid color-mix(in srgb, var(--home-accent) 22%, transparent); border-radius: 4px; font-size: 9px; }.signal-one { left: 43%; top: 30%; }.signal-two { right: 8%; top: 6%; }.terminal-table { display: grid; grid-template-columns: 1.4fr .8fr .8fr .7fr; gap: 8px; margin-top: 10px; padding-top: 12px; border-top: 1px solid var(--home-line); font-size: 10px; }.terminal-table b { color: var(--home-muted); font-weight: 500; }.terminal-table em { color: var(--home-accent); font-style: normal; }.terminal-table i { color: var(--home-accent); font-style: normal; }
.scroll-cue { position: absolute; bottom: 25px; left: 50%; width: 20px; height: 30px; border: 1px solid var(--home-muted); border-radius: 12px; opacity: .8; }.scroll-cue span { display: block; width: 3px; height: 6px; margin: 6px auto; background: var(--home-accent); border-radius: 2px; animation: scrollCue 1.6s ease-in-out infinite; }
.content-section { padding: 122px clamp(20px, 6vw, 100px); }.section-heading { width: min(720px, 100%); margin: 0 auto 48px; text-align: center; }.section-heading h2 { margin: 0; font-size: clamp(30px, 4vw, 48px); line-height: 1.15; }.section-heading p:last-child { margin: 16px auto 0; color: var(--home-muted); max-width: 600px; }
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; width: min(1180px, 100%); margin: 0 auto; }.feature { min-height: 210px; padding: 25px; border: 1px solid var(--home-line); border-radius: 9px; background: var(--home-card); }.feature-wide { grid-column: span 2; min-height: 210px; display: grid; grid-template-columns: auto 1fr; gap: 15px; align-content: start; }.feature h3 { margin: 14px 0 8px; font-size: 18px; }.feature-wide h3 { margin-top: 0; }.feature p { margin: 0; color: var(--home-muted); font-size: 13px; }.feature-icon { display: grid; place-items: center; width: 36px; height: 36px; color: var(--home-accent); background: var(--home-soft); border-radius: 7px; font-size: 21px; }.spark-bars { grid-column: 1 / -1; display: flex; align-items: end; gap: 7px; height: 65px; margin-top: 13px; padding: 0 8px; border-bottom: 1px solid var(--home-line); }.spark-bars i { flex: 1; max-width: 22px; background: var(--home-accent); opacity: .68; border-radius: 3px 3px 0 0; }.spark-bars i:nth-child(1){height:31%}.spark-bars i:nth-child(2){height:49%}.spark-bars i:nth-child(3){height:42%}.spark-bars i:nth-child(4){height:75%}.spark-bars i:nth-child(5){height:58%}.spark-bars i:nth-child(6){height:86%}.spark-bars i:nth-child(7){height:69%}.spark-bars i:nth-child(8){height:100%}
.workflow-section { padding: 118px clamp(20px, 6vw, 100px); background: var(--home-soft); border-top: 1px solid var(--home-line); border-bottom: 1px solid var(--home-line); }.workflow-line { display: grid; grid-template-columns: repeat(6, 1fr); width: min(1180px, 100%); margin: 0 auto; }.workflow-line article { position: relative; min-height: 150px; padding: 0 18px; border-left: 1px solid color-mix(in srgb, var(--home-accent) 40%, transparent); }.workflow-line article:first-child { border-left: 0; }.workflow-line b { color: var(--home-accent); font-size: 12px; }.workflow-line span { display: block; margin-top: 18px; font-weight: 750; }.workflow-line p { margin: 9px 0 0; color: var(--home-muted); font-size: 12px; }
.exchange-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; width: min(1000px, 100%); margin: 0 auto; }.exchange-card { min-height: 190px; padding: 28px; border: 1px solid var(--home-line); border-radius: 9px; background: var(--home-card); }.exchange-card strong { display: block; font-size: 22px; letter-spacing: 1px; }.exchange-card span { display: block; margin-top: 19px; color: var(--home-accent); font-size: 12px; font-weight: 700; }.exchange-card p { margin: 12px 0 0; color: var(--home-muted); font-size: 13px; }.permission-note { width: min(1000px, 100%); margin: 24px auto 0; color: var(--home-muted); text-align: center; font-size: 12px; }
.security-section { padding: 116px clamp(20px, 6vw, 100px); background: var(--home-card); border-top: 1px solid var(--home-line); border-bottom: 1px solid var(--home-line); }.security-inner { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 80px; width: min(1100px, 100%); margin: 0 auto; }.security-inner .section-heading { margin: 0; text-align: left; }.security-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }.security-list > div { display: flex; gap: 12px; padding: 20px; border: 1px solid var(--home-line); border-radius: 8px; }.security-list i { display: grid; place-items: center; flex: 0 0 25px; height: 25px; color: var(--home-accent); background: var(--home-soft); border-radius: 50%; font-style: normal; font-weight: 800; }.security-list strong, .security-list small { display: block; }.security-list small { margin-top: 5px; color: var(--home-muted); font-size: 12px; }
.preview-stage { display: grid; grid-template-columns: 160px 1fr; width: min(1080px, 100%); min-height: 420px; margin: 0 auto; background: var(--home-card); }.preview-nav { display: flex; flex-direction: column; gap: 18px; padding: 26px 18px; background: color-mix(in srgb, var(--home-soft) 62%, var(--home-card)); border-right: 1px solid var(--home-line); }.preview-nav b { font-size: 12px; }.preview-nav small { margin-top: -14px; color: var(--home-muted); font-size: 8px; letter-spacing: .8px; }.preview-nav > i { width: 100%; height: 8px; background: var(--home-line); border-radius: 3px; }.preview-nav > i:first-of-type { margin-top: 28px; background: var(--home-accent); opacity: .7; }.preview-body { padding: 33px; }.preview-body header { display: flex; justify-content: space-between; }.preview-body header strong { font-size: 23px; }.preview-body header span { color: var(--home-muted); font-size: 12px; }.preview-tabs { display: flex; gap: 20px; margin-top: 25px; padding-bottom: 14px; border-bottom: 1px solid var(--home-line); color: var(--home-muted); font-size: 12px; }.preview-tabs b { color: var(--home-accent); }.preview-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 24px 0; }.preview-stats div { padding: 16px; background: color-mix(in srgb, var(--home-soft) 48%, var(--home-card)); border-radius: 7px; }.preview-stats small { display: block; color: var(--home-muted); font-size: 11px; }.preview-stats strong { display: block; margin-top: 6px; color: var(--home-accent); font-size: 20px; }.preview-chart { height: 190px; padding-top: 15px; border-top: 1px solid var(--home-line); }.preview-chart svg { width: 100%; height: 100%; }.preview-chart path { fill: none; stroke: var(--home-accent); stroke-width: 3; }
.faq-section { padding-bottom: 110px; }.faq-list { width: min(820px, 100%); margin: 0 auto; border-top: 1px solid var(--home-line); }.faq-list details { border-bottom: 1px solid var(--home-line); }.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 0; cursor: pointer; list-style: none; font-weight: 700; }.faq-list summary::-webkit-details-marker { display: none; }.faq-list summary span { color: var(--home-accent); font-size: 22px; font-weight: 400; }.faq-list details[open] summary span { transform: rotate(45deg); }.faq-list p { max-width: 700px; margin: -5px 0 20px; color: var(--home-muted); font-size: 13px; }
.final-cta { padding: 105px 20px 120px; text-align: center; background: var(--home-soft); border-top: 1px solid var(--home-line); }.final-cta h2 { max-width: 720px; margin: 0 auto; font-size: clamp(30px, 4vw, 52px); line-height: 1.15; }.final-cta p:not(.eyebrow) { margin: 17px auto 27px; color: var(--home-muted); }
footer { display: grid; grid-template-columns: 1fr auto; gap: 28px 60px; align-items: start; padding: 38px clamp(20px, 6vw, 100px); color: var(--home-muted); border-top: 1px solid var(--home-line); font-size: 12px; }.footer-brand { color: var(--home-text); }.footer-brand small { color: var(--home-muted); }.footer-brand + nav { justify-content: flex-end; }.footer-brand + nav a:hover { color: var(--home-accent); }.footer-brand ~ p { grid-column: 1 / -1; max-width: 850px; margin: 0; }.footer-brand ~ small { grid-column: 1 / -1; }
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }.reveal.visible { opacity: 1; transform: translateY(0); }
@keyframes scrollCue { 0%,100% { transform: translateY(0); opacity: .35; } 45% { transform: translateY(8px); opacity: 1; } }
@media (max-width: 980px) { .site-header nav { gap: 14px; }.hero-inner { grid-template-columns: 1fr; }.hero-copy { max-width: 700px; }.terminal-visual { width: min(700px, 100%); margin: 0 auto; }.capability-grid { grid-template-columns: repeat(2, 1fr); }.feature-wide { grid-column: span 2; }.workflow-line { grid-template-columns: repeat(3, 1fr); row-gap: 35px; }.workflow-line article:nth-child(4) { border-left: 0; }.security-inner { grid-template-columns: 1fr; gap: 35px; }.security-inner .section-heading { text-align: center; margin: 0 auto; } }
@media (max-width: 720px) { .site-header { height: 64px; padding: 0 16px; }.site-header nav { position: absolute; top: 63px; left: 12px; right: 12px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 8px; background: var(--home-card); border: 1px solid var(--home-line); border-radius: 8px; box-shadow: var(--home-shadow); }.menu-open .site-header nav { display: flex; }.site-header nav a { padding: 12px; }.desktop-auth { display: none; }.menu-button { display: inline-block; }.hero { min-height: 800px; padding: 110px 18px 62px; }.hero h1 { font-size: clamp(44px, 15vw, 70px); }.hero-lead { font-size: 15px; }.hero-facts { gap: 14px; }.hero-facts b { font-size: 16px; }.terminal-grid { grid-template-columns: 37px 1fr; }.terminal-content { padding: 18px 15px; }.terminal-head strong { font-size: 19px; }.terminal-table { grid-template-columns: 1.3fr .8fr .8fr; }.terminal-table i { display: none; }.content-section, .workflow-section, .security-section { padding: 78px 18px; }.section-heading { margin-bottom: 34px; }.capability-grid, .exchange-grid, .security-list { grid-template-columns: 1fr; }.feature-wide { grid-column: auto; }.workflow-line { grid-template-columns: 1fr 1fr; }.workflow-line article:nth-child(odd) { border-left: 0; }.workflow-line article { min-height: 125px; }.preview-stage { grid-template-columns: 1fr; }.preview-nav { display: none; }.preview-body { padding: 22px 15px; }.preview-stats { gap: 8px; }.preview-stats div { padding: 11px 9px; }.preview-stats strong { font-size: 15px; }.preview-chart { height: 140px; } footer { grid-template-columns: 1fr; padding: 30px 18px; } .footer-brand + nav { justify-content: flex-start; flex-wrap: wrap; gap: 14px; } .footer-brand ~ p, .footer-brand ~ small { grid-column: auto; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; }.reveal { opacity: 1; transform: none; transition: none; }.button, .terminal-visual, .preview-stage { transition: none; } }