:root {
  --brand: #0a84ff;
  --brand-deep: #0057c2;
  --brand-soft: #e8f3ff;
  --ink: #0b1220;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #f4f7fc;
  --card: #ffffff;
  --ok: #059669;
  --warn: #d97706;
  --danger: #e11d48;
  --radius: 18px;
  --shadow: 0 20px 60px rgba(15, 23, 42, 0.09);
  --shadow-lg: 0 32px 80px rgba(15, 23, 42, 0.14);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --hero-ink: #e8eef9;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.wrap { width: min(1160px, calc(100% - 32px)); margin: 0 auto; }
.wrap-sm { width: min(880px, calc(100% - 32px)); margin: 0 auto; }

/* Nav */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(245, 247, 251, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.9);
}
.nav {
  height: 64px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 17px; }
.logo {
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(145deg, var(--brand), var(--brand-deep));
  color: #fff; display: grid; place-items: center; font-size: 11px; font-weight: 800;
  box-shadow: 0 8px 18px rgba(10, 132, 255, 0.28);
}
.nav-links { display: flex; gap: 18px; color: var(--muted); font-size: 14px; align-items: center; }
.nav-links a:hover, .nav-links a.active { color: var(--brand); }
.nav-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.nav-toggle {
  display: none; border: 1px solid var(--line); background: #fff; border-radius: 10px;
  width: 40px; height: 36px; font-size: 18px; cursor: pointer; color: var(--ink);
}
.lang-switch {
  display: inline-flex; gap: 2px; padding: 2px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line);
}
.lang-switch button {
  border: 0; background: transparent; cursor: pointer;
  font-size: 11px; font-weight: 700; color: var(--muted);
  padding: 5px 8px; border-radius: 999px; line-height: 1;
}
.lang-switch button.on { background: var(--brand); color: #fff; }
.geo-line {
  font-size: 11px; color: var(--muted); padding: 0 0 8px;
  border-bottom: 1px solid rgba(226,232,240,.6);
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 40px; padding: 0 16px; border-radius: 999px; font-size: 14px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; transition: .15s ease;
}
.btn-primary {
  background: linear-gradient(180deg, var(--brand), var(--brand-deep));
  color: #fff; box-shadow: 0 10px 22px rgba(10, 132, 255, 0.25);
}
.btn-primary:hover { filter: brightness(1.05); }
.btn-ghost { background: #fff; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: #cbd5e1; }
.btn-soft { background: var(--brand-soft); color: var(--brand-deep); }
.btn-sm { height: 34px; padding: 0 12px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* Hero — premium dark band (ToDesk / Sunlogin class) */
.hero {
  padding: 64px 0 52px;
  color: var(--hero-ink);
  background:
    radial-gradient(900px 480px at 88% -8%, rgba(56, 189, 248, 0.28), transparent 58%),
    radial-gradient(720px 400px at 8% 10%, rgba(10, 132, 255, 0.35), transparent 55%),
    linear-gradient(165deg, #06101f 0%, #0b1a33 48%, #0a1428 100%);
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute; inset: auto 0 0 0; height: 72px;
  background: linear-gradient(180deg, transparent, var(--bg));
  pointer-events: none;
}
.hero-grid { display: grid; grid-template-columns: 1.08fr 0.92fr; gap: 40px; align-items: center; position: relative; z-index: 1; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  color: #7dd3fc; font-weight: 700; font-size: 13px; letter-spacing: .04em;
}
.badge-pill {
  background: rgba(125, 211, 252, 0.14); color: #e0f2fe;
  border: 1px solid rgba(125, 211, 252, 0.28);
  border-radius: 999px; padding: 4px 10px; font-size: 12px; font-weight: 700;
}
.hero h1 { font-size: clamp(32px, 5vw, 50px); line-height: 1.12; letter-spacing: -0.035em; margin: 14px 0 16px; color: #fff; }
.hero .lead { color: #94a3b8; font-size: 16.5px; max-width: 38em; margin: 0 0 26px; line-height: 1.7; }
.hero .btn-ghost {
  background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.18); color: #e2e8f0;
}
.hero .btn-ghost:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.3); }
.hero .btn-soft { background: rgba(10,132,255,0.18); color: #bfdbfe; border: 1px solid rgba(125,211,252,0.25); }
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; }
.stats { display: flex; gap: 28px; margin-top: 28px; }
.stats b { display: block; font-size: 22px; color: #fff; }
.stats span { color: #94a3b8; font-size: 12px; }
.hero-visual {
  border-radius: 22px; overflow: hidden; border: 1px solid rgba(148,163,184,0.22);
  box-shadow: var(--shadow-lg); background: #0f172a;
  transform: perspective(1200px) rotateY(-4deg) rotateX(2deg);
}
.hero-visual img { width: 100%; height: auto; display: block; }
.trust-bar {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
  margin-top: -28px; position: relative; z-index: 2;
}
.trust-item {
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  padding: 16px 14px; box-shadow: var(--shadow); text-align: center;
}
.trust-item b { display: block; font-size: 14px; margin-bottom: 4px; }
.trust-item span { color: var(--muted); font-size: 12px; line-height: 1.45; }
.journey {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
}
.journey .card { position: relative; overflow: hidden; }
.journey .card .num {
  position: absolute; right: 12px; top: 8px;
  font-size: 42px; font-weight: 900; color: rgba(10,132,255,0.08); line-height: 1;
}
.compare-mini {
  display: grid; grid-template-columns: 1.2fr repeat(3, 1fr); gap: 0;
  background: #fff; border: 1px solid var(--line); border-radius: 18px; overflow: hidden;
  font-size: 13px;
}
.compare-mini div { padding: 12px 14px; border-bottom: 1px solid #f1f5f9; border-right: 1px solid #f1f5f9; }
.compare-mini .h { background: #f8fafc; font-weight: 700; color: #334155; }
.compare-mini .yes { color: var(--ok); font-weight: 700; }
.compare-mini .me { background: rgba(10,132,255,0.04); font-weight: 700; color: var(--brand-deep); }
.cta-band {
  background: linear-gradient(135deg, #0a84ff, #0057c2 55%, #0ea5e9);
  border-radius: 24px; padding: 36px 32px; color: #fff;
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  box-shadow: 0 24px 50px rgba(10, 132, 255, 0.28);
}
.cta-band h2 { margin: 0 0 8px; font-size: 26px; }
.cta-band p { margin: 0; opacity: .9; font-size: 14px; }
.cta-band .btn-ghost { background: #fff; color: var(--brand-deep); border: 0; }
h1 { font-size: clamp(30px, 4.6vw, 46px); line-height: 1.15; letter-spacing: -0.03em; margin: 12px 0 14px; }
.lead { color: var(--muted); font-size: 16px; max-width: 38em; margin: 0 0 24px; }

section { padding: 56px 0; }
.section-head { margin-bottom: 24px; }
.section-head h2 { margin: 0 0 8px; font-size: 28px; letter-spacing: -0.02em; }
.section-head p { margin: 0; color: var(--muted); }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; box-shadow: 0 1px 0 rgba(15,23,42,.02);
}
.card h3 { margin: 0 0 8px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.card .icon {
  width: 40px; height: 40px; border-radius: 12px; margin-bottom: 12px;
  background: var(--brand-soft); display: grid; place-items: center; color: var(--brand);
  font-weight: 800; font-size: 14px;
}

/* Pricing */
.pricing-tabs { display: flex; gap: 8px; margin-bottom: 18px; flex-wrap: wrap; }
.pricing-tabs button {
  border: 1px solid var(--line); background: #fff; border-radius: 999px;
  padding: 8px 14px; font-size: 13px; font-weight: 600; cursor: pointer; color: var(--muted);
}
.pricing-tabs button.on { background: var(--brand); border-color: var(--brand); color: #fff; }
.price-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.price-card {
  background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 20px;
  display: flex; flex-direction: column; min-height: 360px; position: relative;
}
.price-card.featured {
  border-color: rgba(10,132,255,.45);
  box-shadow: 0 18px 40px rgba(10,132,255,.12);
}
.price-card .tag {
  position: absolute; top: -11px; left: 16px;
  background: var(--brand); color: #fff; font-size: 11px; font-weight: 700;
  padding: 4px 10px; border-radius: 999px;
}
.tier { color: var(--muted); font-size: 13px; font-weight: 700; }
.price { font-size: 30px; font-weight: 800; letter-spacing: -0.03em; margin: 10px 0 4px; }
.price small { font-size: 13px; font-weight: 500; color: var(--muted); }
.price-card ul { list-style: none; padding: 0; margin: 14px 0 18px; flex: 1; }
.price-card li {
  font-size: 13px; color: #334155; padding: 7px 0;
  border-top: 1px solid #f1f5f9;
  display: flex; gap: 8px; align-items: flex-start;
}
.price-card li::before { content: "✓"; color: var(--ok); font-weight: 800; }
.note {
  margin-top: 16px; padding: 14px 16px; border-radius: 14px;
  background: #ecfdf5; color: #065f46; font-size: 13px;
  border: 1px solid #a7f3d0;
}
.note.warn { background: #fff7ed; color: #9a3412; border-color: #fed7aa; }

/* Compare table */
.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
table.compare { width: 100%; border-collapse: collapse; min-width: 720px; font-size: 13px; }
table.compare th, table.compare td {
  padding: 12px 14px; border-bottom: 1px solid #f1f5f9; text-align: center;
}
table.compare th:first-child, table.compare td:first-child { text-align: left; color: #334155; }
table.compare thead th { background: #f8fafc; font-weight: 700; }
table.compare .yes { color: var(--ok); font-weight: 700; }
table.compare .no { color: #94a3b8; }

/* Docs */
.docs-layout { display: grid; grid-template-columns: 220px 1fr; gap: 24px; padding: 32px 0 56px; }
.docs-side {
  position: sticky; top: 80px; align-self: start;
  background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 14px;
}
.docs-side a {
  display: block; padding: 9px 10px; border-radius: 10px; color: var(--muted); font-size: 13px; font-weight: 600;
}
.docs-side a:hover, .docs-side a.active { background: var(--brand-soft); color: var(--brand-deep); }
.docs-main {
  background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 28px 30px;
  box-shadow: 0 1px 0 rgba(15,23,42,.02);
}
.docs-main h1 { font-size: 28px; margin: 0 0 12px; }
.docs-main h2 { font-size: 20px; margin: 28px 0 10px; }
.docs-main h3 { font-size: 16px; margin: 20px 0 8px; }
.docs-main p, .docs-main li { color: #334155; font-size: 15px; }
.docs-main ol, .docs-main ul { padding-left: 1.2em; }
.docs-main .shot {
  margin: 16px 0; border-radius: 14px; overflow: hidden; border: 1px solid var(--line);
}
.step {
  display: flex; gap: 12px; margin: 14px 0; padding: 12px; border-radius: 12px; background: #f8fafc;
}
.step .n {
  width: 28px; height: 28px; border-radius: 50%; background: var(--brand); color: #fff;
  display: grid; place-items: center; font-size: 13px; font-weight: 800; flex-shrink: 0;
}

/* Account / billing */
.account-grid { display: grid; grid-template-columns: 260px 1fr; gap: 18px; padding: 28px 0 48px; }
.side-nav { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 12px; }
.side-nav a {
  display: block; padding: 11px 12px; border-radius: 10px; font-size: 14px; font-weight: 600; color: #475569;
}
.side-nav a.active, .side-nav a:hover { background: var(--brand-soft); color: var(--brand-deep); }
.panel { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 20px; }
.panel h2 { margin: 0 0 6px; font-size: 20px; }
.panel .sub { color: var(--muted); font-size: 13px; margin-bottom: 16px; }
.kv { display: grid; grid-template-columns: 120px 1fr; gap: 8px 12px; font-size: 14px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-weight: 600; }
.status-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 700;
}
.status-chip.ok { background: #ecfdf5; color: #047857; }
.status-chip.pending { background: #fff7ed; color: #c2410c; }
.status-chip.free { background: #f1f5f9; color: #475569; }
.orders-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.orders-table th, .orders-table td {
  text-align: left; padding: 11px 10px; border-bottom: 1px solid #f1f5f9;
}
.orders-table th { color: var(--muted); font-weight: 600; background: #f8fafc; }
.login-box {
  max-width: 420px; margin: 40px auto; background: #fff; border: 1px solid var(--line);
  border-radius: 18px; padding: 24px; box-shadow: var(--shadow);
}
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 12px; font-weight: 600; color: #475569; margin-bottom: 6px; }
.field input {
  width: 100%; height: 42px; border-radius: 12px; border: 1px solid var(--line);
  padding: 0 12px; font-size: 14px;
}
.field input:focus { outline: 2px solid rgba(10,132,255,.25); border-color: var(--brand); }
.alert { padding: 10px 12px; border-radius: 10px; font-size: 13px; margin-bottom: 12px; }
.alert.err { background: #fff1f2; color: #be123c; }
.alert.ok { background: #ecfdf5; color: #047857; }

/* Download */
.dl-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.dl-card {
  background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 18px;
  display: flex; flex-direction: column; gap: 8px; min-height: 160px;
}
.dl-card b { font-size: 16px; }
.dl-card span { color: var(--muted); font-size: 12px; flex: 1; }
.dl-card .state {
  font-size: 12px; font-weight: 700; padding: 4px 8px; border-radius: 999px; width: fit-content;
}
.state.ready { background: #ecfdf5; color: #047857; }
.state.wait { background: #fff7ed; color: #c2410c; }

.footer {
  border-top: 1px solid var(--line); padding: 36px 0 28px; color: var(--muted); font-size: 13px;
  background: #0b1220; color: #94a3b8;
}
.footer a { color: #cbd5e1; }
.footer a:hover { color: #fff; }
.footer .row { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-rich .footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 28px; margin-bottom: 28px;
}
.footer-col h4 {
  margin: 0 0 12px; color: #e2e8f0; font-size: 13px; font-weight: 700; letter-spacing: .02em;
}
.footer-col a { display: block; padding: 5px 0; font-size: 13px; }
.footer-desc { margin: 0 0 8px; font-size: 13px; line-height: 1.6; max-width: 28em; }
.footer-rich .brand { color: #fff; }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: 12px 20px; padding-top: 18px;
  border-top: 1px solid rgba(148,163,184,.18); font-size: 12px;
}
.footer-bottom a { color: #7dd3fc; }
/* Light hero for inner pages (pricing/download) */
.hero-light {
  padding: 48px 0 28px;
  background:
    radial-gradient(800px 360px at 90% -20%, rgba(10,132,255,.12), transparent 60%),
    linear-gradient(180deg, #eef5ff, var(--bg));
  color: var(--ink);
}
.hero-light h1 { color: var(--ink); }
.hero-light .lead { color: var(--muted); }
.hero-light .eyebrow { color: var(--brand); }
.faq-item {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 16px 18px; margin-bottom: 10px;
}
.faq-item h3 { margin: 0 0 6px; font-size: 15px; }
.faq-item p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.65; }

@media (max-width: 960px) {
  .hero-grid, .grid-3, .grid-2, .price-grid, .dl-grid, .docs-layout, .account-grid,
  .trust-bar, .journey, .compare-mini, .footer-rich .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-toggle { display: grid; place-items: center; }
  .nav-links {
    display: none; position: absolute; left: 16px; right: 16px; top: 64px;
    background: #fff; border: 1px solid var(--line); border-radius: 14px;
    flex-direction: column; align-items: stretch; padding: 10px;
    box-shadow: var(--shadow); z-index: 60; gap: 0;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 12px; border-radius: 10px; }
  .nav-links a:hover, .nav-links a.active { background: var(--brand-soft); }
  .nav-actions .btn-ghost { display: none; }
  .site-header { position: sticky; }
  .docs-side { position: static; }
  .stats { flex-wrap: wrap; }
  .hero-visual { transform: none; }
}
@media (max-width: 560px) {
  .trust-bar, .journey, .compare-mini, .grid-2, .footer-rich .footer-grid { grid-template-columns: 1fr; }
}

/* Legal / support pages */
.legal-prose {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px 30px 36px;
  box-shadow: 0 1px 0 rgba(15,23,42,.02);
}
.legal-prose h1 { font-size: 28px; margin: 0 0 8px; }
.legal-prose .meta { color: var(--muted); font-size: 13px; margin: 0 0 22px; }
.legal-prose h2 { font-size: 18px; margin: 26px 0 10px; letter-spacing: -0.01em; }
.legal-prose h3 { font-size: 15px; margin: 18px 0 8px; }
.legal-prose p, .legal-prose li { color: #334155; font-size: 14.5px; line-height: 1.7; }
.legal-prose ul, .legal-prose ol { padding-left: 1.25em; margin: 8px 0 12px; }
.legal-prose table {
  width: 100%; border-collapse: collapse; font-size: 13.5px; margin: 12px 0 16px;
}
.legal-prose th, .legal-prose td {
  border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top;
}
.legal-prose th { background: #f8fafc; font-weight: 700; }
.legal-prose a { color: var(--brand); font-weight: 600; }
.legal-prose a:hover { text-decoration: underline; }
.legal-prose .callout {
  margin: 16px 0;
  padding: 14px 16px;
  border-radius: 14px;
  background: var(--brand-soft);
  border: 1px solid #c7e0ff;
  color: #0c4a6e;
  font-size: 13.5px;
}
.legal-tabs {
  display: inline-flex; gap: 4px; padding: 3px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line); margin-bottom: 16px;
}
.legal-tabs button {
  border: 0; background: transparent; cursor: pointer;
  font-size: 12px; font-weight: 700; color: var(--muted);
  padding: 7px 12px; border-radius: 999px;
}
.legal-tabs button.on { background: var(--brand); color: #fff; }
.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 10px 0; border-bottom: 1px solid #f1f5f9; font-size: 14px; color: #334155;
}
.checklist .box {
  width: 18px; height: 18px; border: 2px solid var(--brand); border-radius: 4px;
  flex-shrink: 0; margin-top: 2px;
}
.kv-grid {
  display: grid; grid-template-columns: 140px 1fr; gap: 8px 14px;
  font-size: 14px; margin: 12px 0 18px;
}
.kv-grid dt { color: var(--muted); font-weight: 600; }
.kv-grid dd { margin: 0; color: var(--ink); word-break: break-all; }
.mono-box {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: #0f172a; color: #e2e8f0; padding: 14px 16px; border-radius: 12px;
  font-size: 13px; line-height: 1.6; overflow: auto;
}