:root {
    --ink: #242338;
    --muted: #77758a;
    --paper: #fbf9ff;
    --panel: #ffffff;
    --violet: #5b3fd1;
    --violet-deep: #32206f;
    --cyan: #16b9c9;
    --coral: #ff6f7d;
    --line: #e8e5f2;
    --shadow: 0 18px 45px rgba(49, 32, 111, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
    line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.wrap { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.site-header {
    position: sticky; top: 0; z-index: 10;
    background: rgba(251, 249, 255, .92);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(232, 229, 242, .9);
}
.nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .02em; }
.brand img { width: 40px; height: 40px; }
.brand span { font-size: 1.1rem; }
.nav-links { display: flex; align-items: center; gap: 22px; color: var(--muted); font-size: .95rem; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--violet); }
.nav-cta, .button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; border-radius: 10px; padding: 11px 18px; font-weight: 700; cursor: pointer; }
.nav-cta, .button-primary { color: #fff; background: var(--violet); box-shadow: 0 8px 22px rgba(91, 63, 209, .22); }
.button-soft { color: var(--violet-deep); background: #ece8ff; }
.button:hover { transform: translateY(-1px); }
.hero { padding: 82px 0 66px; position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 60px; }
.eyebrow { color: var(--coral); font-size: .8rem; letter-spacing: .18em; font-weight: 800; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.2; margin: 0; letter-spacing: -.02em; }
h1 { font-size: clamp(2.6rem, 5vw, 4.8rem); color: var(--violet-deep); max-width: 620px; }
h2 { font-size: clamp(1.65rem, 3vw, 2.25rem); color: var(--violet-deep); }
h3 { font-size: 1.1rem; }
.hero-copy { font-size: 1.1rem; color: var(--muted); max-width: 560px; margin: 24px 0 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-art { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: end; }
.phone { max-width: 200px; margin: 0 auto; padding: 10px; border: 1px solid #d9d3f0; border-radius: 25px; background: #fff; box-shadow: var(--shadow); }
.phone.tilt { transform: translateY(24px) rotate(4deg); }
.phone img { width: 100%; border-radius: 17px; }
.section { padding: 74px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.section-kicker { color: var(--muted); max-width: 530px; margin: 0; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature-card, .step-card, .faq-item, .quote, .content-panel, .stat { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 8px 25px rgba(49, 32, 111, .05); }
.feature-card { padding: 24px; min-height: 210px; }
.feature-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px; margin-bottom: 18px; color: #fff; background: var(--violet); font-weight: 800; }
.feature-card:nth-child(2) .feature-icon { background: var(--cyan); }
.feature-card:nth-child(3) .feature-icon { background: var(--coral); }
.feature-card p, .step-card p, .faq-item p, .content-panel p, .quote p { color: var(--muted); margin: 10px 0 0; }
.showcase { background: var(--violet-deep); color: #fff; }
.showcase h2 { color: #fff; }
.showcase .section-kicker { color: #c9c2ee; }
.showcase-grid { display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 50px; }
.showcase-list { display: grid; gap: 12px; margin: 26px 0 0; padding: 0; list-style: none; }
.showcase-list li { display: flex; align-items: center; gap: 10px; color: #e7e3ff; }
.showcase-list b { color: var(--cyan); }
.screenshot-row { display: flex; justify-content: center; gap: 14px; }
.screenshot-row .phone { max-width: 165px; border-color: #63548f; background: #49368b; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.stat { padding: 22px; text-align: center; }
.stat strong { display: block; color: var(--violet); font-size: 1.7rem; }
.stat span { color: var(--muted); font-size: .9rem; }
.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.quote { padding: 22px; }
.quote cite { display: block; margin-top: 16px; color: var(--violet); font-style: normal; font-weight: 700; }
.link-band { display: flex; align-items: center; justify-content: space-between; gap: 22px; padding: 25px 28px; border-radius: 14px; background: #e9f8fa; border: 1px solid #c8eef1; }
.link-band p { margin: 4px 0 0; color: var(--muted); }
.page-hero { padding: 64px 0 48px; background: linear-gradient(135deg, #f1edff, #fbf9ff 55%, #e8fbfc); }
.page-hero p { max-width: 700px; color: var(--muted); margin: 16px 0 0; }
.content-grid { display: grid; grid-template-columns: 1fr .35fr; gap: 28px; align-items: start; }
.content-panel { padding: 30px; }
.content-panel h2 { margin-top: 30px; font-size: 1.55rem; }
.content-panel h2:first-child { margin-top: 0; }
.content-panel ul { padding-left: 20px; color: var(--muted); }
.steps { display: grid; gap: 14px; }
.step-card { display: grid; grid-template-columns: 48px 1fr; gap: 16px; padding: 20px; }
.step-no { width: 42px; height: 42px; display: grid; place-items: center; color: #fff; background: var(--violet); border-radius: 50%; font-weight: 800; }
.side-card { position: sticky; top: 100px; padding: 22px; border-radius: 14px; background: var(--violet-deep); color: #fff; }
.side-card h3 { color: #fff; }
.side-card ul { padding-left: 18px; color: #ddd7ff; }
.faq-list { display: grid; gap: 12px; }
.faq-item { padding: 20px 22px; }
.faq-item h3 { color: var(--violet-deep); }
.faq-item p { margin-top: 8px; }
.footer { margin-top: 70px; padding: 34px 0 22px; border-top: 1px solid var(--line); background: #fff; }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.footer p { color: var(--muted); margin: 8px 0; font-size: .9rem; }
.footer-nav { display: flex; justify-content: flex-end; gap: 18px; color: var(--muted); font-size: .9rem; }
.copyright { margin-top: 22px !important; padding-top: 18px; border-top: 1px solid var(--line); font-size: .82rem !important; }
@media (max-width: 820px) {
    .nav-links { gap: 12px; font-size: .86rem; }
    .nav-cta { display: none; }
    .hero-grid, .showcase-grid, .content-grid { grid-template-columns: 1fr; gap: 34px; }
    .hero { padding-top: 58px; }
    .feature-grid, .quote-grid { grid-template-columns: 1fr; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .side-card { position: static; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-nav { justify-content: flex-start; flex-wrap: wrap; }
}
@media (max-width: 520px) {
    .wrap { width: min(100% - 28px, 1120px); }
    .nav { min-height: 66px; }
    .brand img { width: 34px; height: 34px; }
    .nav-links { gap: 10px; }
    .nav-links a:nth-child(2) { display: none; }
    h1 { font-size: 2.55rem; }
    .section { padding: 54px 0; }
    .section-head { display: block; }
    .section-kicker { margin-top: 10px; }
    .screenshot-row .phone { max-width: 130px; }
    .link-band { display: block; }
    .link-band .button { margin-top: 16px; }
}