:root {
  --ink: #17202a;
  --muted: #66717e;
  --line: #dfe4e8;
  --paper: #f7f8f6;
  --white: #fff;
  --coral: #e93323;
  --coral-dark: #b9251a;
  --cyan: #0c9eb5;
  --gold: #d49a38;
  --max: 1160px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; line-height: 1.7; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.header-inner { height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 750; font-size: 21px; letter-spacing: .02em; }
.brand img { width: 38px; height: 38px; object-fit: contain; border-radius: 11px; }
.site-nav { display: flex; align-items: center; gap: 28px; color: var(--muted); font-size: 15px; }
.site-nav a { padding: 25px 0 22px; border-bottom: 3px solid transparent; transition: color .2s ease, border-color .2s ease; }
.site-nav a:hover, .site-nav a.active { color: var(--coral); border-color: var(--coral); }
.header-action { display: inline-flex; align-items: center; justify-content: center; padding: 9px 16px; border-radius: 7px; background: var(--coral); color: #fff; font-weight: 650; }
.nav-toggle { display: none; border: 0; background: transparent; font-size: 24px; color: var(--ink); }
.hero { position: relative; min-height: 590px; display: flex; align-items: center; overflow: hidden; color: #fff; background: #24333b; }
.hero::before { content: ''; position: absolute; inset: 0; background: rgba(17,31,38,.54); }
.hero-media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-content { position: relative; z-index: 1; padding: 82px 0; max-width: 690px; }
.eyebrow { margin: 0 0 18px; color: #bce8e9; font-size: 14px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
h1, h2, h3 { margin: 0; line-height: 1.18; letter-spacing: -.02em; }
h1 { font-size: clamp(42px, 6vw, 76px); max-width: 720px; }
.hero p { max-width: 610px; margin: 24px 0 34px; color: #e6eff0; font-size: 19px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 20px; border: 1px solid transparent; border-radius: 6px; font-weight: 700; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #fff; background: var(--coral); }
.button-primary:hover { background: var(--coral-dark); }
.button-light { color: var(--ink); background: #fff; }
.button-outline { color: var(--coral); border-color: var(--coral); background: transparent; }
.section { padding: 94px 0; }
.section-tight { padding: 64px 0; }
.section-heading { max-width: 660px; margin-bottom: 42px; }
.section-heading h2 { font-size: clamp(29px, 4vw, 44px); }
.section-heading p { margin: 17px 0 0; color: var(--muted); font-size: 17px; }
.kicker { display: inline-block; margin-bottom: 13px; color: var(--coral); font-size: 13px; font-weight: 800; letter-spacing: .13em; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.feature { padding: 27px 26px; background: var(--white); border: 1px solid var(--line); border-radius: 8px; }
.feature-number { display: inline-flex; width: 34px; height: 34px; align-items: center; justify-content: center; margin-bottom: 23px; color: #fff; background: var(--ink); border-radius: 50%; font-size: 14px; font-weight: 750; }
.feature h3 { font-size: 21px; }
.feature p { margin: 12px 0 0; color: var(--muted); }
.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: center; }
.split h2 { font-size: clamp(30px, 4vw, 46px); }
.split p { color: var(--muted); }
.app-showcase { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px; align-items: start; }
.app-shot { margin: 0; padding: 18px 18px 22px; background: #fff; border: 1px solid var(--line); border-radius: 8px; }
.app-shot img { width: min(100%, 330px); margin: 0 auto; border-radius: 22px; box-shadow: 0 14px 34px rgba(23,32,42,.16); }
.app-shot figcaption { max-width: 330px; margin: 19px auto 0; }
.app-shot strong { display: block; margin-bottom: 5px; font-size: 19px; }
.app-shot span { color: var(--muted); font-size: 14px; }
.home-gallery { display: flex; gap: 16px; overflow-x: auto; padding: 4px 2px 18px; scroll-snap-type: x mandatory; scrollbar-width: thin; scrollbar-color: #bac6c9 transparent; }
.home-gallery::-webkit-scrollbar { height: 7px; }
.home-gallery::-webkit-scrollbar-thumb { background: #bac6c9; border-radius: 7px; }
.home-gallery-card { flex: 0 0 254px; scroll-snap-align: start; margin: 0; padding: 10px 10px 15px; background: #fff; border: 1px solid var(--line); border-radius: 8px; }
.home-gallery-card img { width: 100%; aspect-ratio: 734 / 1582; object-fit: cover; object-position: top; border-radius: 16px; }
.home-gallery-card figcaption { padding: 13px 5px 0; }
.home-gallery-card strong { display: block; font-size: 16px; }
.home-gallery-card span { color: var(--muted); font-size: 13px; }
.list { display: grid; gap: 17px; margin: 28px 0 0; padding: 0; list-style: none; }
.list li { position: relative; padding-left: 29px; }
.list li::before { content: ''; position: absolute; left: 0; top: .75em; width: 10px; height: 10px; border-radius: 50%; background: var(--cyan); }
.band { padding: 35px 0; color: #fff; background: var(--ink); }
.band-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.band h2 { font-size: 25px; }
.band p { margin: 5px 0 0; color: #cbd5da; }
.page-hero { padding: 80px 0 70px; background: #eef3f1; border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(37px, 6vw, 62px); }
.page-hero p { max-width: 720px; margin: 21px 0 0; color: var(--muted); font-size: 18px; }
.legal { max-width: 860px; }
.legal h2 { margin: 38px 0 12px; font-size: 25px; }
.legal h3 { margin: 24px 0 8px; font-size: 18px; }
.legal p, .legal li { color: #4e5964; }
.legal ul { padding-left: 21px; }
.legal-source { max-width: 980px; }
.legal-source p { margin: 0 0 14px; color: #4e5964; font-size: 16px; line-height: 1.9; }
.legal-source font[size="6"] { font-size: 32px; color: var(--ink); }
.legal-source font[size="4"], .legal-source span[style*="font-size: large"] { font-size: 16px !important; }
.legal-source a { color: var(--coral-dark); text-decoration: underline; text-underline-offset: 3px; }
.contact-list { display: grid; gap: 13px; margin: 25px 0 0; }
.contact-item { padding: 19px 0; border-bottom: 1px solid var(--line); }
.contact-item strong { display: block; margin-bottom: 3px; }
.contact-item span, .contact-item a { color: var(--muted); }
.form { padding: 30px; background: #fff; border: 1px solid var(--line); border-radius: 8px; }
.form label { display: block; margin-bottom: 18px; color: var(--muted); font-size: 14px; }
.form input, .form textarea { display: block; width: 100%; margin-top: 7px; padding: 12px 13px; border: 1px solid #cfd7dc; border-radius: 5px; color: var(--ink); background: #fff; font: inherit; }
.form textarea { min-height: 130px; resize: vertical; }
.form-status { min-height: 24px; margin: 13px 0 0; color: var(--coral); font-size: 14px; }
.site-footer { padding: 44px 0 30px; color: #aeb9c1; background: #17202a; }
.footer-main { display: flex; align-items: flex-start; justify-content: space-between; gap: 40px; padding-bottom: 30px; border-bottom: 1px solid #35414a; }
.footer-brand { color: #fff; }
.footer-brand p { max-width: 320px; margin: 14px 0 0; color: #aeb9c1; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px 25px; color: #e4eaed; font-size: 14px; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; padding-top: 20px; font-size: 13px; }
.muted { color: var(--muted); }
@media (max-width: 760px) {
  .container { width: min(var(--max), calc(100% - 32px)); }
  .header-inner { height: 66px; }
  .nav-toggle { display: block; }
  .site-nav { display: none; position: absolute; left: 0; right: 0; top: 66px; flex-direction: column; align-items: stretch; gap: 0; padding: 10px 16px 16px; background: #fff; border-bottom: 1px solid var(--line); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 11px 4px; border-bottom: 1px solid #edf0f1; }
  .header-action { display: none; }
  .hero { min-height: 610px; }
  .hero-content { padding: 70px 0; }
  .hero p { font-size: 17px; }
  .section { padding: 68px 0; }
  .grid-3, .grid-2, .split, .app-showcase { grid-template-columns: 1fr; gap: 16px; }
  .split { gap: 28px; }
  .band-inner, .footer-main { flex-direction: column; }
  .footer-links { gap: 12px 18px; }
}