:root {
    color-scheme: light;
    --ink: #12313b;
    --muted: #60737a;
    --brand: #0f5367;
    --brand-dark: #082f3a;
    --accent: #e39a37;
    --paper: #ffffff;
    --soft: #eef5f5;
    --line: #d9e5e5;
    --shadow: 0 18px 55px rgba(12, 50, 60, .11);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
    line-height: 1.75;
}
a { color: inherit; }
.shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.narrow { max-width: 760px; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(255, 255, 255, .94);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(12px);
}
.header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { font-size: 20px; font-weight: 800; text-decoration: none; letter-spacing: -.02em; }
nav { display: flex; align-items: center; gap: 24px; }
nav a { color: #36515a; font-size: 14px; text-decoration: none; }
.nav-cta { padding: 9px 16px; border-radius: 999px; background: var(--brand); color: #fff; }

.hero {
    overflow: hidden;
    padding: 92px 0 84px;
    background:
        radial-gradient(circle at 80% 15%, rgba(227, 154, 55, .22), transparent 28%),
        linear-gradient(135deg, #f4faf9, #e7f1f0);
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(280px, .6fr); gap: 72px; align-items: center; }
.status-pill { display: inline-flex; padding: 6px 12px; border: 1px solid #a8c4c7; border-radius: 999px; color: var(--brand); font-size: 13px; font-weight: 700; background: rgba(255,255,255,.65); }
h1, h2, h3 { line-height: 1.22; }
h1 { margin: 20px 0 18px; font-size: clamp(44px, 8vw, 82px); letter-spacing: -.055em; overflow-wrap: anywhere; }
h2 { margin: 8px 0 20px; font-size: clamp(28px, 4vw, 42px); letter-spacing: -.035em; }
h3 { font-size: 19px; }
.hero-lead { max-width: 700px; margin: 0; color: #38555e; font-size: 19px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; padding: 0 22px; border-radius: 10px; font-weight: 700; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); }
.button.primary { color: #fff; background: var(--brand); box-shadow: 0 12px 24px rgba(15,83,103,.2); }
.button.secondary { border: 1px solid #a9c2c6; background: rgba(255,255,255,.65); }
.button.light { background: #fff; color: var(--brand-dark); }
.contact-note { margin-top: 18px; color: var(--muted); font-size: 14px; }
.price-card { padding: 30px; border: 1px solid rgba(255,255,255,.9); border-radius: 20px; background: rgba(255,255,255,.8); box-shadow: var(--shadow); }
.price-card > span { color: var(--muted); font-size: 13px; }
.price-card > strong { display: block; margin: 4px 0 22px; color: var(--brand); font-size: 32px; }
.price-card dl { margin: 0; }
.price-card dl div, .facts div { display: flex; justify-content: space-between; gap: 20px; padding: 13px 0; border-top: 1px solid var(--line); }
dt { color: var(--muted); }
dd { margin: 0; text-align: right; font-weight: 650; }

.section { padding: 82px 0; }
.section-muted { background: var(--soft); }
.section-dark { background: var(--brand-dark); color: #fff; }
.two-column { display: grid; grid-template-columns: 1.1fr .9fr; gap: 72px; }
.eyebrow { margin: 0 0 4px; color: var(--accent); font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.fact-panel { padding: 30px; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: 0 14px 42px rgba(24,58,66,.07); }
.fact-panel h2 { font-size: 25px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.tag-list span { padding: 5px 11px; border-radius: 999px; background: #edf5f4; color: var(--brand); font-size: 13px; }
.use-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 34px; }
.use-card { min-height: 230px; padding: 26px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.use-card > span { color: var(--accent); font-weight: 800; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; padding: 0; margin: 34px 0 0; list-style: none; counter-reset: step; }
.steps li { position: relative; padding: 24px; border: 1px solid var(--line); border-radius: 14px; }
.steps strong, .steps span { display: block; }
.steps span { margin-top: 8px; color: var(--muted); font-size: 14px; }
.steps.vertical { grid-template-columns: 1fr; }
.callout { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.callout h2 { margin-bottom: 10px; }
.callout p { margin-bottom: 0; color: #c5d8dc; }
.faq-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 72px; }
.faq-list details { border-top: 1px solid var(--line); padding: 18px 0; }
.faq-list summary { cursor: pointer; font-weight: 750; }
.faq-list p { color: var(--muted); }
.related-section { padding-top: 20px; }
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.related-grid a { padding: 20px; border: 1px solid var(--line); border-radius: 12px; text-decoration: none; }
.related-grid strong, .related-grid span { display: block; }
.related-grid span { margin-top: 4px; color: var(--muted); font-size: 13px; }

.static-page { min-height: 65vh; }
.static-page h1 { font-size: clamp(38px, 7vw, 66px); }
.static-page > .shell > p { font-size: 18px; }
.not-found { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; }
.not-found h1 { font-size: 58px; }

.site-footer { padding: 52px 0 26px; border-top: 1px solid var(--line); background: #f8fbfb; }
.site-footer p { color: var(--muted); }
.footer-grid { display: flex; justify-content: space-between; gap: 40px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }
.footer-links a { color: var(--muted); text-decoration: none; }
.copyright { padding-top: 26px; border-top: 1px solid var(--line); color: #789096; font-size: 12px; }

@media (max-width: 800px) {
    .shell { width: min(100% - 28px, 1120px); }
    .header-inner { min-height: 64px; }
    nav > a:not(.nav-cta) { display: none; }
    .hero { padding: 68px 0 56px; }
    .hero-grid, .two-column, .faq-layout { grid-template-columns: 1fr; gap: 36px; }
    .use-grid, .steps, .related-grid { grid-template-columns: 1fr; }
    .callout, .footer-grid { align-items: flex-start; flex-direction: column; }
    .section { padding: 58px 0; }
}