:root {
  --ink: #171529;
  --muted: #6d6980;
  --paper: #fbf9ff;
  --lavender: #7c5cff;
  --violet: #4930a8;
  --coral: #ff7584;
  --mint: #8cdcc9;
  --line: #e7e1f2;
  --shadow: 0 18px 50px rgba(61, 43, 122, .12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif; line-height: 1.75; }
a { color: inherit; text-decoration: none; }
.shell { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.topbar { position: sticky; top: 0; z-index: 10; background: rgba(251,249,255,.92); backdrop-filter: blur(14px); border-bottom: 1px solid rgba(231,225,242,.8); }
.nav { height: 76px; display:flex; align-items:center; justify-content:space-between; gap: 24px; }
.brand { display:flex; align-items:center; gap: 10px; font-weight: 800; letter-spacing: .04em; font-size: 20px; }
.brand img { width: 38px; height:38px; border-radius: 12px; box-shadow: 0 8px 20px rgba(124,92,255,.25); }
.navlinks { display:flex; gap: 22px; align-items:center; color: var(--muted); font-size: 14px; }
.navlinks a:hover, .navlinks a.active { color: var(--violet); }
.btn { display:inline-flex; align-items:center; justify-content:center; gap: 8px; border-radius: 999px; padding: 12px 22px; font-weight: 700; font-size: 14px; transition: .2s ease; }
.btn-primary { color:#fff; background: linear-gradient(135deg,var(--lavender),var(--violet)); box-shadow: 0 10px 24px rgba(92,65,193,.24); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 28px rgba(92,65,193,.32); }
.btn-soft { background: #eeeaff; color: var(--violet); }
.hero { padding: 72px 0 48px; overflow:hidden; }
.hero-grid { display:grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items:center; }
.eyebrow { display:inline-flex; align-items:center; gap:8px; color: var(--violet); font-size: 13px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; }
.eyebrow i { width:8px; height:8px; border-radius:50%; background:var(--coral); box-shadow: 0 0 0 6px #ffe7ea; }
h1 { margin: 16px 0 18px; font-size: clamp(34px,5vw,62px); line-height:1.12; letter-spacing:-.02em; }
.hero-copy { color: var(--muted); font-size: 17px; max-width: 610px; }
.hero-actions { display:flex; flex-wrap:wrap; gap:12px; margin-top:28px; }
.hero-note { display:flex; gap:18px; flex-wrap:wrap; margin-top:22px; color:var(--muted); font-size:13px; }
.hero-note span { display:inline-flex; align-items:center; gap:6px; }
.hero-art { position:relative; min-height: 390px; display:flex; align-items:center; justify-content:center; }
.hero-glow { position:absolute; width:330px; height:330px; border-radius:50%; background: radial-gradient(circle at 35% 30%, #e9e2ff, #d7ccff 45%, rgba(215,204,255,0) 70%); }
.phone { position:relative; width:220px; padding:10px; border-radius:30px; background:#1e1a30; box-shadow: var(--shadow); transform: rotate(5deg); }
.phone img { display:block; width:100%; border-radius:22px; }
.phone.small { position:absolute; width:145px; right: 4%; bottom: 0; transform: rotate(-9deg); opacity:.96; }
.section { padding: 74px 0; }
.section.tinted { background:#f2effc; }
.section-head { display:flex; justify-content:space-between; align-items:end; gap:20px; margin-bottom:28px; }
h2 { margin:0; font-size:30px; line-height:1.25; }
.section-head a { color:var(--violet); font-size:14px; font-weight:700; }
.feature-grid { display:grid; grid-template-columns: repeat(4,1fr); gap:16px; }
.feature { padding:24px; background:#fff; border:1px solid var(--line); border-radius:18px; box-shadow:0 8px 24px rgba(75,57,130,.05); }
.feature .icon { font-size:26px; margin-bottom:12px; }
.feature h3 { margin:0 0 8px; font-size:18px; }
.feature p { margin:0; color:var(--muted); font-size:14px; }
.screens { display:grid; grid-template-columns: repeat(4,1fr); gap:18px; align-items:start; }
.screen-card { margin:0; }
.screen-card img { display:block; width:100%; max-width:400px; border-radius:20px; box-shadow: var(--shadow); }
.screen-card figcaption { margin-top:12px; font-weight:700; font-size:14px; }
.screen-card small { color:var(--muted); font-size:12px; }
.split { display:grid; grid-template-columns: .95fr 1.05fr; gap:52px; align-items:start; }
.stat-row { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:28px; }
.stat { padding:18px; background:#fff; border:1px solid var(--line); border-radius:14px; }
.stat strong { display:block; color:var(--violet); font-size:26px; }
.stat span { color:var(--muted); font-size:13px; }
.quote { border-left: 3px solid var(--coral); padding: 2px 0 2px 20px; margin: 22px 0; color:#433c59; }
.quote cite { display:block; margin-top:8px; color:var(--muted); font-size:13px; font-style:normal; }
.link-cards { display:grid; grid-template-columns:repeat(2,1fr); gap:16px; }
.link-card { padding:22px; background:linear-gradient(145deg,#fff,#f7f3ff); border:1px solid var(--line); border-radius:16px; }
.link-card h3 { margin:0 0 6px; font-size:18px; }
.link-card p { margin:0 0 14px; color:var(--muted); font-size:14px; }
.link-card a { color:var(--violet); font-size:14px; font-weight:700; }
.page-hero { padding: 58px 0 34px; background:linear-gradient(120deg,#f1edff,#fff5f3 72%); }
.page-hero h1 { font-size: clamp(34px,5vw,54px); max-width:800px; }
.page-hero .lede { max-width:780px; color:var(--muted); font-size:16px; }
.article { max-width:900px; }
.article h2 { margin: 38px 0 16px; font-size:26px; }
.article h3 { margin:26px 0 8px; font-size:19px; }
.article p { color:#4e4960; margin: 0 0 16px; }
.steps { display:grid; gap:14px; margin:22px 0; }
.step { display:grid; grid-template-columns:54px 1fr; gap:16px; padding:20px; background:#fff; border:1px solid var(--line); border-radius:16px; }
.step-num { width:40px; height:40px; display:grid; place-items:center; border-radius:12px; background:#eeeaff; color:var(--violet); font-weight:800; }
.step h3 { margin:0 0 4px; }
.step p { margin:0; }
.faq-list { display:grid; gap:12px; }
details { background:#fff; border:1px solid var(--line); border-radius:14px; padding:17px 20px; }
summary { cursor:pointer; font-weight:700; }
details p { margin:12px 0 0; color:var(--muted); }
.callout { margin-top:28px; padding:24px; border-radius:18px; background:#211b3b; color:#f8f5ff; }
.callout p { color:#d8d0ec; margin:8px 0 18px; }
footer { margin-top:70px; padding:34px 0; background:#171529; color:#d9d4e9; }
.footer-grid { display:flex; justify-content:space-between; gap:24px; flex-wrap:wrap; }
.footer-brand { color:#fff; font-weight:800; }
.footer-links { display:flex; gap:18px; font-size:13px; }
.disclaimer { margin:22px 0 0; color:#aaa3c0; font-size:12px; max-width:780px; }
.copyright { margin-top:14px; color:#8d869f; font-size:12px; }
@media (max-width: 900px) { .hero-grid,.split { grid-template-columns:1fr; gap:34px; } .hero-art { min-height:340px; } .feature-grid { grid-template-columns:repeat(2,1fr); } .screens { grid-template-columns:repeat(2,1fr); } }
@media (max-width: 620px) { .shell { padding:0 18px; } .nav { height:68px; } .navlinks { gap:12px; font-size:12px; } .navlinks .btn { padding:9px 13px; } .hero { padding-top:44px; } h1 { font-size:40px; } .feature-grid,.screens,.link-cards { grid-template-columns:1fr; } .screen-card img { max-width: 300px; } .section { padding:54px 0; } .section-head { align-items:start; flex-direction:column; } .phone { width:190px; } .phone.small { width:125px; right:0; } }