:root {
  color-scheme: dark;
  --bg: #050505;
  --surface: #111113;
  --surface-soft: #18181b;
  --line: rgba(255,255,255,.11);
  --text: #f5f5f7;
  --muted: #a1a1aa;
  --accent: #0a84ff;
  --accent-soft: rgba(10,132,255,.13);
  --green: #34c759;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: -apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC","Microsoft YaHei",sans-serif; line-height: 1.75; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.primary-cta { border: 0; border-radius: 999px; background: #fff; color: #050505; font: inherit; font-weight: 700; cursor: pointer; padding: 10px 18px; }
.hero { width: min(980px,calc(100% - 40px)); margin: 0 auto; padding: 112px 0 58px; }
.breadcrumbs { color: #8e8e93; font-size: 13px; margin-bottom: 34px; }
.breadcrumbs a:hover { color: #fff; }
.eyebrow { color: var(--accent); font-size: 13px; font-weight: 760; letter-spacing: .15em; text-transform: uppercase; }
h1 { max-width: 900px; margin: 16px 0 22px; font-size: clamp(38px,6vw,68px); line-height: 1.08; letter-spacing: -.045em; }
.direct-answer { max-width: 800px; margin: 0; color: #c7c7cc; font-size: clamp(18px,2.2vw,23px); line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.secondary-cta { border: 1px solid var(--line); border-radius: 999px; color: #f5f5f7; padding: 9px 17px; font-weight: 650; }
.proof-strip { border-block: 1px solid var(--line); background: #0a0a0b; }
.proof-grid { width: min(980px,calc(100% - 40px)); margin: auto; display: grid; grid-template-columns: repeat(3,1fr); }
.proof-item { padding: 24px 24px 24px 0; color: var(--muted); font-size: 14px; }
.proof-item strong { display: block; color: #fff; font-size: 17px; margin-bottom: 2px; }
.page { width: min(980px,calc(100% - 40px)); margin: auto; padding: 36px 0 96px; }
.section { padding: 58px 0; border-bottom: 1px solid var(--line); }
.section:last-child { border-bottom: 0; }
.section-kicker { color: var(--accent); font-size: 12px; font-weight: 760; letter-spacing: .14em; text-transform: uppercase; }
h2 { margin: 10px 0 18px; font-size: clamp(28px,4vw,42px); line-height: 1.2; letter-spacing: -.03em; }
h3 { margin: 0 0 8px; font-size: 19px; letter-spacing: -.015em; }
p { color: #c7c7cc; }
.checklist { margin: 24px 0 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.checklist li { position: relative; padding: 16px 18px 16px 48px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); color: #c7c7cc; }
.checklist li::before { content: "✓"; position: absolute; left: 18px; color: var(--green); font-weight: 800; }
.lead { max-width: 780px; font-size: 18px; }
.card-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; margin-top: 28px; }
.card-grid.three { grid-template-columns: repeat(3,minmax(0,1fr)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 24px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.step-number { display: inline-grid; place-items: center; width: 32px; height: 32px; margin-bottom: 18px; border-radius: 50%; background: var(--accent-soft); color: #69adff; font-weight: 760; }
.product-shot { margin: 32px 0 0; border: 1px solid var(--line); border-radius: 20px; overflow: hidden; background: #f4f5f7; box-shadow: 0 28px 80px rgba(0,0,0,.34); }
.product-shot img { width: 100%; aspect-ratio: 16/9; object-fit: cover; object-position: top left; }
.product-shot figcaption { padding: 11px 16px; background: #101012; color: #a1a1aa; font-size: 13px; border-top: 1px solid var(--line); }
.note { margin-top: 24px; border-left: 3px solid var(--accent); background: var(--accent-soft); padding: 17px 20px; color: #dbeafe; border-radius: 0 12px 12px 0; }
.boundary { border-color: rgba(52,199,89,.28); background: rgba(52,199,89,.07); }
.boundary .section-kicker { color: var(--green); }
.comparison { width: 100%; margin-top: 28px; border-collapse: collapse; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; display: table; }
.comparison th,.comparison td { padding: 15px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.comparison th { background: #18181b; color: #fff; font-size: 14px; }
.comparison td { color: #b7b7bd; font-size: 14px; }
.comparison tr:last-child td { border-bottom: 0; }
.flow { display: grid; grid-template-columns: repeat(5,1fr); gap: 10px; align-items: stretch; margin-top: 30px; }
.flow-item { position: relative; padding: 20px 16px; border: 1px solid var(--line); border-radius: 15px; background: var(--surface); }
.flow-item:not(:last-child)::after { content: "→"; position: absolute; right: -10px; top: 50%; z-index: 2; color: var(--accent); transform: translate(50%,-50%); }
.flow-item strong { display: block; font-size: 15px; }
.flow-item span { color: var(--muted); font-size: 12px; }
.faq-list { margin-top: 28px; display: grid; gap: 12px; }
.faq { border: 1px solid var(--line); border-radius: 14px; background: var(--surface); padding: 20px 22px; }
.faq h3 { font-size: 17px; }
.faq p { margin: 6px 0 0; color: var(--muted); }
.related { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; margin-top: 28px; }
.related a { display: block; border: 1px solid var(--line); border-radius: 14px; padding: 18px; background: var(--surface); }
.related a:hover { border-color: rgba(10,132,255,.5); }
.cta-panel { margin-top: 58px; padding: 44px; border-radius: 24px; background: #f5f5f7; color: #111; }
.cta-panel h2 { color: #111; margin-top: 0; }
.cta-panel p { color: #53535a; max-width: 700px; }
.cta-panel .primary-cta { background: #111; color: #fff; }
.site-footer { border-top: 1px solid var(--line); color: #8e8e93; }
.footer-inner { width: min(980px,calc(100% - 40px)); margin: auto; padding: 32px 0; display: flex; justify-content: space-between; gap: 20px; font-size: 13px; }
.modal { position: fixed; inset: 0; z-index: 100; display: none; place-items: center; background: rgba(0,0,0,.76); padding: 24px; }
.modal.open { display: grid; }
.modal-card { position: relative; width: min(410px,100%); border: 1px solid var(--line); border-radius: 22px; background: #151517; padding: 30px; text-align: center; }
.modal-close { position: absolute; right: 14px; top: 12px; border: 0; background: transparent; color: #aaa; font-size: 25px; cursor: pointer; }
.modal-card img { width: 210px; height: 210px; object-fit: cover; margin: 18px auto; border-radius: 14px; background: #fff; }
.modal-card a { color: #69adff; }
@media (max-width: 760px) {
  .hero { padding-top: 96px; }
  .proof-grid,.card-grid,.card-grid.three,.related { grid-template-columns: 1fr; }
  .proof-item { border-bottom: 1px solid var(--line); }
  .flow { grid-template-columns: 1fr; }
  .flow-item:not(:last-child)::after { content: "↓"; right: 50%; top: auto; bottom: -15px; transform: translate(50%,50%); }
  .comparison { display: block; overflow-x: auto; white-space: nowrap; }
  .cta-panel { padding: 30px 24px; }
  .footer-inner { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }