:root {
  color-scheme: light;
  --ink: #12203a;
  --muted: #63708a;
  --line: #dfe5ef;
  --paper: #ffffff;
  --soft: #f4f7fc;
  --navy: #142342;
  --blue: #4f68eb;
  --blue-dark: #3349bd;
  --mint: #15a77d;
  --warm: #f4b84a;
  --shadow: 0 24px 60px rgba(28, 43, 76, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
button, input, textarea { font: inherit; }
.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 100; background: #fff; padding: 10px 14px; border-radius: 8px; }
.skip-link:focus { top: 16px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(223, 229, 239, 0.86);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
}
.header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-size: 21px; font-weight: 800; }
.brand-mark { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 11px; color: #fff; background: linear-gradient(145deg, #7890ff, #5367e8); box-shadow: 0 8px 18px rgba(79, 104, 235, .25); }
.brand em { color: var(--blue); font-style: normal; }
.site-nav { display: flex; align-items: center; gap: 24px; }
.site-nav a { color: #41506d; text-decoration: none; font-size: 14px; font-weight: 650; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--blue); }
.menu-button { display: none; border: 1px solid var(--line); background: #fff; border-radius: 10px; padding: 8px 11px; }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 18px; border: 0; border-radius: 11px; text-decoration: none; font-weight: 750; background: var(--blue); color: #fff; box-shadow: 0 10px 22px rgba(79, 104, 235, .24); }
.button:hover { background: var(--blue-dark); }
.button.secondary { background: #fff; color: var(--ink); border: 1px solid var(--line); box-shadow: none; }
.button.small { min-height: 38px; padding: 0 14px; font-size: 13px; }

.hero { overflow: hidden; background: radial-gradient(circle at 84% 15%, rgba(109, 129, 245, .16), transparent 34%), linear-gradient(180deg, #f8faff, #fff); }
.hero-grid { min-height: 700px; display: grid; grid-template-columns: 1fr .95fr; gap: 70px; align-items: center; padding: 90px 0 80px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 18px; color: #3b55cc; font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: #20bd8d; box-shadow: 0 0 0 5px rgba(32, 189, 141, .12); }
.hero h1 { max-width: 680px; margin: 0; font-size: clamp(42px, 5.5vw, 72px); line-height: 1.08; letter-spacing: -.045em; }
.hero h1 span { color: var(--blue); }
.hero-copy { max-width: 620px; margin: 24px 0 30px; color: var(--muted); font-size: 18px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-note { margin-top: 20px; color: #79849a; font-size: 12px; }

.product-window { position: relative; padding: 18px; border: 1px solid rgba(216, 224, 240, .9); border-radius: 24px; background: rgba(255,255,255,.78); box-shadow: var(--shadow); transform: rotate(1deg); }
.window-top { display: flex; align-items: center; gap: 7px; padding: 1px 2px 15px; }
.window-top i { width: 8px; height: 8px; border-radius: 50%; background: #d8deea; }
.window-top i:first-child { background: #ff8b8b; }
.window-top i:nth-child(2) { background: #f5c969; }
.window-top i:nth-child(3) { background: #66cfae; }
.window-body { display: grid; grid-template-columns: 80px 1fr; min-height: 390px; overflow: hidden; border-radius: 16px; background: #f5f7fc; }
.mini-sidebar { background: #152342; padding: 20px 12px; }
.mini-logo { width: 28px; height: 28px; margin-bottom: 26px; display: grid; place-items: center; color: #fff; border-radius: 8px; background: #6277ed; font-weight: 900; }
.mini-nav { height: 8px; margin: 15px 0; border-radius: 4px; background: #354564; }
.mini-nav.active { background: #7085f4; }
.mini-content { padding: 25px 22px; }
.mini-title { font-size: 22px; font-weight: 850; }
.mini-subtitle { color: #8993a7; font-size: 11px; }
.metric-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 22px 0; }
.metric { padding: 13px; border: 1px solid #e5eaf3; border-radius: 11px; background: #fff; }
.metric small { display: block; color: #929caf; font-size: 9px; }
.metric strong { font-size: 18px; }
.order-list { padding: 5px 0; overflow: hidden; border: 1px solid #e5eaf3; border-radius: 12px; background: #fff; }
.order-row { display: grid; grid-template-columns: 32px 1fr auto; gap: 11px; align-items: center; padding: 12px; border-bottom: 1px solid #edf0f5; }
.order-row:last-child { border: 0; }
.order-icon { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 8px; color: #5167de; background: #edf1ff; font-size: 12px; }
.order-row strong, .order-row small { display: block; font-size: 10px; }
.order-row small { color: #96a0b4; }
.status { padding: 3px 7px; border-radius: 999px; color: #138264; background: #e2f8f1; font-size: 9px; font-weight: 800; }
.float-card { position: absolute; right: -32px; bottom: 42px; width: 205px; padding: 14px 16px; border-radius: 14px; background: #142342; color: #fff; box-shadow: 0 18px 40px rgba(20,35,66,.3); transform: rotate(-2deg); }
.float-card small { color: #9da9c2; }
.float-card strong { display: block; margin-top: 3px; }

.section { padding: 100px 0; }
.section.soft { background: var(--soft); }
.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { margin: 0 0 14px; font-size: clamp(30px, 4vw, 46px); line-height: 1.18; letter-spacing: -.03em; }
.section-head p { margin: 0; color: var(--muted); font-size: 17px; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card { min-height: 240px; padding: 26px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.feature-icon { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 13px; background: #eef1ff; color: var(--blue); font-size: 20px; }
.feature-card h3 { margin: 24px 0 8px; font-size: 18px; }
.feature-card p { margin: 0; color: var(--muted); font-size: 14px; }

.workflow { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: 20px; background: #fff; overflow: hidden; }
.workflow-step { position: relative; min-height: 220px; padding: 28px; border-right: 1px solid var(--line); }
.workflow-step:last-child { border: 0; }
.workflow-step b { color: var(--blue); font-size: 13px; }
.workflow-step h3 { margin: 34px 0 8px; font-size: 18px; }
.workflow-step p { margin: 0; color: var(--muted); font-size: 13px; }

.security-grid, .company-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: stretch; }
.security-panel { padding: 34px; border-radius: 20px; background: var(--navy); color: #fff; }
.security-panel h2 { margin-top: 0; font-size: 34px; }
.security-panel p { color: #bac5da; }
.check-list { display: grid; gap: 12px; margin-top: 28px; }
.check-list div { display: flex; align-items: flex-start; gap: 10px; color: #dce3f2; font-size: 14px; }
.check-list i { flex: 0 0 22px; width: 22px; height: 22px; display: grid; place-items: center; border-radius: 50%; background: rgba(32,189,141,.18); color: #55dbb3; font-style: normal; }
.data-panel { padding: 34px; border: 1px solid var(--line); border-radius: 20px; }
.data-line { display: grid; grid-template-columns: 106px 1fr; gap: 20px; padding: 17px 0; border-bottom: 1px solid var(--line); }
.data-line:last-child { border: 0; }
.data-line strong { font-size: 13px; }
.data-line span { color: var(--muted); font-size: 13px; }

.pricing-card { max-width: 860px; margin: 0 auto; display: grid; grid-template-columns: 1fr .8fr; overflow: hidden; border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow); }
.pricing-copy { padding: 42px; }
.pricing-copy h3 { margin: 0 0 10px; font-size: 28px; }
.pricing-copy p { color: var(--muted); }
.price-points { display: grid; gap: 11px; padding: 34px; background: #f1f4ff; }
.price-points div { padding: 12px 14px; border-radius: 10px; background: #fff; color: #536079; font-size: 13px; }

.company-card { padding: 34px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.company-card h3 { margin-top: 0; }
.company-card dl { margin: 22px 0 0; }
.company-card dl div { display: grid; grid-template-columns: 96px 1fr; gap: 18px; padding: 10px 0; }
.company-card dt { color: #8a95a9; font-size: 13px; }
.company-card dd { margin: 0; font-size: 14px; }
.contact-card { padding: 34px; border-radius: 20px; background: #eef2ff; }
.contact-card a:not(.button) { color: #3650c7; font-weight: 750; }

.page-hero { padding: 82px 0 60px; background: linear-gradient(180deg, #f5f7ff, #fff); }
.page-hero h1 { margin: 0 0 14px; font-size: clamp(36px, 5vw, 56px); letter-spacing: -.035em; }
.page-hero p { max-width: 720px; color: var(--muted); font-size: 17px; }
.document { width: min(850px, calc(100% - 40px)); margin: 0 auto; padding: 65px 0 100px; }
.document .updated { display: inline-block; margin-bottom: 30px; padding: 5px 10px; border-radius: 999px; background: #eef1ff; color: #4058cb; font-size: 12px; }
.document h2 { margin: 42px 0 12px; font-size: 24px; }
.document h3 { margin: 28px 0 8px; font-size: 17px; }
.document p, .document li { color: #4e5c76; }
.document li { margin: 7px 0; }
.notice { margin: 26px 0; padding: 18px 20px; border-left: 4px solid var(--blue); border-radius: 0 10px 10px 0; background: #f2f5ff; color: #46546e; }

.site-footer { background: #101c34; color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 50px; padding: 58px 0 36px; }
.footer-grid p, .footer-grid a { color: #aeb9cd; font-size: 13px; }
.footer-grid h3 { font-size: 14px; }
.footer-links { display: grid; gap: 9px; }
.footer-links a { text-decoration: none; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding: 20px 0 30px; border-top: 1px solid #26344e; color: #8390aa; font-size: 12px; }

@media (max-width: 920px) {
  .site-nav { display: none; position: absolute; left: 20px; right: 20px; top: 66px; padding: 18px; flex-direction: column; align-items: flex-start; border: 1px solid var(--line); border-radius: 14px; background: #fff; box-shadow: var(--shadow); }
  .site-nav.open { display: flex; }
  .menu-button { display: block; }
  .hero-grid { grid-template-columns: 1fr; gap: 56px; padding-top: 70px; }
  .product-window { max-width: 650px; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .workflow { grid-template-columns: 1fr 1fr; }
  .workflow-step:nth-child(2) { border-right: 0; }
  .workflow-step:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .security-grid, .company-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .container { width: min(100% - 28px, 1160px); }
  .hero-grid { min-height: auto; padding: 60px 0; }
  .hero h1 { font-size: 43px; }
  .hero-copy { font-size: 16px; }
  .product-window { padding: 10px; border-radius: 18px; }
  .window-body { grid-template-columns: 56px 1fr; min-height: 340px; }
  .mini-sidebar { padding: 14px 8px; }
  .mini-content { padding: 18px 12px; }
  .metric-row { grid-template-columns: 1fr; }
  .metric:nth-child(n+2) { display: none; }
  .float-card { right: 4px; bottom: 20px; }
  .section { padding: 72px 0; }
  .feature-grid, .workflow, .pricing-card, .footer-grid { grid-template-columns: 1fr; }
  .workflow-step { border-right: 0; border-bottom: 1px solid var(--line); }
  .pricing-copy, .price-points, .security-panel, .data-panel, .company-card, .contact-card { padding: 26px; }
  .footer-grid { gap: 28px; }
  .footer-bottom { flex-direction: column; }
}