:root {
  --bg: #08080c; --bg2: #0f1013; --card: #14161a; --line: #24272d; --ink: #eceef0; --muted: #9aa1aa; --dim: #6b727c;
  --accent: #5cc0a3; --accent-ink: #062018; --accent-soft: #10241e; --warn: #f0b35a;
  --paper: #f3f5f4; --paper-ink: #18211d; --paper-muted: #5a6762; --paper-line: #d9e0dc;
  --font: "Inter", "Segoe UI", system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --w: 1160px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 var(--font); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-underline-offset: 3px; }
.wrap { max-width: var(--w); margin: 0 auto; padding: 0 24px; }
.skip { position: absolute; left: -9999px; } .skip:focus { left: 12px; top: 12px; background: var(--accent); color: var(--accent-ink); padding: 8px 12px; border-radius: 6px; z-index: 10; }

/* Header */
.top { position: sticky; top: 0; z-index: 5; background: rgba(8,8,12,.82); backdrop-filter: blur(10px); border-bottom: 1px solid #ffffff10; }
.top .wrap { display: flex; align-items: center; gap: 28px; height: 62px; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 700; font-size: 18px; letter-spacing: -.01em; }
.logo svg { width: 28px; height: 28px; }
.top nav { display: flex; gap: 22px; margin-left: auto; align-items: center; }
.top nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.top nav a:hover { color: var(--ink); }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 9px; font-weight: 600; font-size: 15px; text-decoration: none; border: 1px solid transparent; transition: transform .12s, filter .12s; }
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { border-color: #ffffff26; color: var(--ink); }
.btn.ghost:hover { border-color: #ffffff55; }
.top .btn { padding: 8px 14px; font-size: 14px; }
@media (max-width: 820px) { .top nav a:not(.btn) { display: none; } }

/* Hero */
.hero { padding: 84px 0 40px; position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: -40% -10% auto; height: 620px; background: radial-gradient(600px 300px at 50% 40%, #5cc0a322, transparent 70%); pointer-events: none; }
.eyebrow { display: inline-flex; gap: 8px; align-items: center; font-size: 13px; color: var(--accent); background: var(--accent-soft); border: 1px solid #5cc0a333; padding: 5px 12px; border-radius: 999px; }
.hero h1 { font-size: clamp(38px, 6vw, 68px); line-height: 1.04; letter-spacing: -.035em; margin: 22px 0 18px; max-width: 900px; text-wrap: balance; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lede { font-size: clamp(17px, 2vw, 20px); color: var(--muted); max-width: 680px; margin: 0 0 30px; text-wrap: pretty; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.facts { display: flex; flex-wrap: wrap; gap: 10px 22px; margin: 28px 0 0; padding: 0; list-style: none; color: var(--muted); font-size: 14px; }
.facts li::before { content: "✓"; color: var(--accent); margin-right: 7px; font-weight: 700; }
.shot { margin-top: 56px; border-radius: 14px; border: 1px solid #ffffff1a; overflow: hidden; box-shadow: 0 40px 120px -30px #000, 0 0 0 1px #00000080; background: var(--paper); }
.shot .bar { height: 30px; background: #1b1d22; display: flex; gap: 7px; align-items: center; padding: 0 12px; }
.shot .bar i { width: 10px; height: 10px; border-radius: 50%; background: #3a3d44; }

/* Sections */
section { padding: 96px 0; }
section.alt { background: var(--bg2); border-top: 1px solid #ffffff0a; border-bottom: 1px solid #ffffff0a; }
.kicker { font-size: 13px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); margin: 0 0 12px; }
h2 { font-size: clamp(28px, 3.6vw, 42px); line-height: 1.12; letter-spacing: -.025em; margin: 0 0 16px; max-width: 760px; text-wrap: balance; }
.sub { color: var(--muted); font-size: 18px; max-width: 680px; margin: 0 0 44px; }
.grid { display: grid; gap: 16px; }
.g3 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.g4 { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 22px; }
.card h3 { margin: 0 0 8px; font-size: 17px; letter-spacing: -.01em; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card .ic { width: 34px; height: 34px; border-radius: 9px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; margin-bottom: 14px; font-size: 17px; }
.pain .card { border-left: 3px solid var(--warn); }
.pain .card strong { display: block; font-size: 15px; margin-bottom: 4px; }

/* Feature rows */
.feature { display: grid; grid-template-columns: 1fr 1.35fr; gap: 56px; align-items: center; padding: 40px 0; }
.feature.flip { grid-template-columns: 1.35fr 1fr; }
.feature.flip .copy { order: 2; }
.feature h3 { font-size: 28px; letter-spacing: -.02em; margin: 0 0 12px; line-height: 1.2; }
.feature p { color: var(--muted); margin: 0 0 14px; }
.feature ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.feature li { padding-left: 24px; position: relative; color: var(--ink); font-size: 15px; }
.feature li::before { content: ""; position: absolute; left: 4px; top: 9px; width: 8px; height: 8px; border-radius: 2px; background: var(--accent); }
.frame { border-radius: 12px; overflow: hidden; border: 1px solid #ffffff1a; box-shadow: 0 30px 80px -30px #000; background: var(--paper); }
@media (max-width: 900px) { .feature, .feature.flip { grid-template-columns: 1fr; gap: 24px; } .feature.flip .copy { order: 0; } }

/* Steps */
.steps { counter-reset: s; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.steps .card { position: relative; padding-top: 54px; }
.steps .card::before { counter-increment: s; content: counter(s); position: absolute; top: 18px; left: 22px; font: 700 14px var(--mono); color: var(--accent-ink); background: var(--accent); width: 24px; height: 24px; border-radius: 6px; display: grid; place-items: center; }

/* Works with */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chips span { border: 1px solid var(--line); background: var(--card); border-radius: 999px; padding: 7px 14px; font-size: 14px; color: var(--ink); }
.chips span small { color: var(--dim); margin-left: 6px; }

/* Language */
.lang { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.lang figure { margin: 0; }
.lang figcaption { color: var(--muted); font-size: 14px; margin-top: 10px; }
@media (max-width: 760px) { .lang { grid-template-columns: 1fr; } }

/* Pricing */
.price { display: grid; grid-template-columns: 1.2fr 1fr; gap: 24px; align-items: stretch; }
.price .card { padding: 32px; }
.price .main { border-color: #5cc0a355; background: linear-gradient(180deg, #10241e, var(--card) 60%); }
.price .tag { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; }
.price h3 { font-size: 30px; margin: 0 0 8px; letter-spacing: -.02em; }
.price ul { list-style: none; padding: 0; margin: 20px 0 26px; display: grid; gap: 9px; }
.price li::before { content: "✓"; color: var(--accent); font-weight: 700; margin-right: 10px; }
@media (max-width: 820px) { .price { grid-template-columns: 1fr; } }

/* FAQ */
.faq { max-width: 820px; }
.faq details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::after { content: "+"; color: var(--accent); font-size: 22px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq summary::-webkit-details-marker { display: none; }
.faq p { color: var(--muted); margin: 12px 0 0; }

/* Final CTA + footer */
.final { text-align: center; padding: 110px 0; background: radial-gradient(500px 220px at 50% 0%, #5cc0a31f, transparent 70%); }
.final h2 { margin: 0 auto 14px; }
.final .sub { margin: 0 auto 30px; }
.final .cta { justify-content: center; }
footer { border-top: 1px solid #ffffff10; padding: 40px 0 56px; color: var(--dim); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 32px; justify-content: space-between; }
footer a { color: var(--muted); text-decoration: none; } footer a:hover { color: var(--ink); }
footer nav { display: flex; gap: 20px; flex-wrap: wrap; }

/* Text pages */
.doc { max-width: 780px; padding: 64px 24px 96px; margin: 0 auto; }
.doc h1 { font-size: clamp(32px, 4.5vw, 46px); letter-spacing: -.03em; line-height: 1.1; margin: 0 0 10px; }
.doc .meta { color: var(--dim); font-size: 14px; margin: 0 0 40px; }
.doc h2 { font-size: 22px; margin: 44px 0 10px; letter-spacing: -.01em; }
.doc p, .doc li { color: #c9ced4; }
.doc ul { padding-left: 22px; }
.doc li { margin: 6px 0; }
.doc table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; }
.doc th, .doc td { text-align: left; border-bottom: 1px solid var(--line); padding: 10px 8px; vertical-align: top; }
.doc th { color: var(--muted); font-weight: 600; }
.note { background: var(--accent-soft); border: 1px solid #5cc0a333; border-radius: 10px; padding: 14px 18px; color: var(--ink); }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn { transition: none; } .btn:hover { transform: none; } }
.more { margin-top: 40px; }
.small-muted { color: var(--muted); margin: 0; }