:root {
  --ink: #2d1e27;
  --muted: #76636d;
  --cream: #fff8f2;
  --paper: #ffffff;
  --orange: #f06a3a;
  --coral: #ee4f47;
  --gold: #f3b548;
  --line: #f1ddd3;
  --shadow: 0 20px 50px rgba(104, 48, 32, .12);
  --radius: 20px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--cream);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.75;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.shell { width: min(1140px, calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 248, 242, .94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(241, 221, 211, .8);
}
.nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: 1px; }
.brand img { width: 42px; height: 42px; border-radius: 13px; }
.brand span { font-size: 18px; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a { padding: 9px 14px; border-radius: 10px; color: var(--muted); font-size: 14px; }
.nav-links a:hover, .nav-links a[aria-current="page"] { background: #ffe9db; color: var(--coral); }
.nav-toggle { display: none; border: 0; background: #ffe9db; color: var(--coral); width: 40px; height: 40px; border-radius: 10px; font-size: 20px; }
.hero { padding: 74px 0 72px; background: radial-gradient(circle at 88% 18%, #ffd8be 0, rgba(255, 216, 190, 0) 30%), linear-gradient(130deg, #fff8f2, #fff0e5); }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 60px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--coral); font-size: 13px; font-weight: 800; letter-spacing: 1.4px; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 24px; height: 3px; border-radius: 2px; background: var(--gold); }
h1, h2, h3 { line-height: 1.22; margin: 0; letter-spacing: -.02em; }
h1 { margin-top: 18px; font-size: clamp(34px, 5vw, 62px); max-width: 560px; }
.hero-copy { max-width: 590px; margin: 22px 0 28px; color: var(--muted); font-size: 17px; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 22px; border-radius: 12px; border: 1px solid transparent; font-size: 15px; font-weight: 800; cursor: pointer; transition: transform .2s, box-shadow .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #fff; background: linear-gradient(135deg, var(--coral), var(--orange)); box-shadow: 0 11px 22px rgba(238, 79, 71, .25); }
.button-ghost { background: #fff; color: var(--coral); border-color: var(--line); }
.hero-note { margin: 14px 0 0; color: #9b8580; font-size: 12px; }
.hero-art { position: relative; display: flex; justify-content: center; }
.hero-art::before { content: ""; position: absolute; width: 360px; height: 360px; border-radius: 50%; background: #ffd8bd; opacity: .7; filter: blur(2px); }
.phone { position: relative; width: min(280px, 80vw); padding: 10px; border: 7px solid #2d1e27; border-radius: 34px; background: #2d1e27; box-shadow: 0 25px 55px rgba(65, 33, 30, .25); transform: rotate(4deg); }
.phone img { width: 100%; border-radius: 23px; background: #fff; }
.phone-tag { position: absolute; right: -46px; bottom: 46px; padding: 9px 12px; background: #fff; color: var(--coral); border: 1px solid var(--line); border-radius: 10px; font-size: 12px; font-weight: 800; box-shadow: var(--shadow); transform: rotate(-5deg); }
.section { padding: 86px 0; }
.section-tint { background: #fff1e7; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 34px; }
.section-head h2 { font-size: clamp(28px, 4vw, 42px); }
.section-head p { max-width: 430px; margin: 0; color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature { min-height: 210px; padding: 25px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 10px 25px rgba(104, 48, 32, .05); }
.feature-icon { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 13px; background: #fff0c9; color: #a45c13; font-size: 21px; margin-bottom: 22px; }
.feature:nth-child(2) .feature-icon { background: #ffe0da; color: var(--coral); }
.feature:nth-child(3) .feature-icon { background: #e9f3df; color: #56803c; }
.feature:nth-child(4) .feature-icon { background: #e9e5ff; color: #6252af; }
.feature:nth-child(5) .feature-icon { background: #dff4f1; color: #1f7f7b; }
.feature h3 { font-size: 19px; }
.feature p { margin: 10px 0 0; color: var(--muted); font-size: 14px; }
.screens { display: grid; grid-template-columns: repeat(3, 1fr); align-items: end; gap: 22px; }
.screen-card { padding: 18px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.screen-card:nth-child(2) { transform: translateY(-22px); }
.screen-card img { width: min(100%, 260px); margin: 0 auto; border-radius: 14px; }
.screen-card figcaption { margin-top: 14px; text-align: center; color: var(--muted); font-size: 13px; }
.stat-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.stat { padding: 25px 18px; text-align: center; background: #fffaf6; }
.stat strong { display: block; color: var(--coral); font-size: 30px; line-height: 1.1; }
.stat span { display: block; margin-top: 7px; color: var(--muted); font-size: 13px; }
.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.quote { padding: 25px; border-radius: var(--radius); background: #3b2932; color: #fff8f2; }
.quote p { margin: 0; font-size: 16px; }
.quote cite { display: block; margin-top: 18px; color: #ffc68c; font-size: 13px; font-style: normal; }
.link-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.text-link { color: var(--coral); font-weight: 800; font-size: 14px; }
.text-link::after { content: "  →"; }
.article { max-width: 820px; margin: 0 auto; }
.article h1 { font-size: clamp(34px, 5vw, 52px); max-width: 700px; }
.article-lead { margin: 22px 0 42px; color: var(--muted); font-size: 17px; }
.article h2 { margin: 44px 0 15px; font-size: 28px; }
.article h3 { margin: 26px 0 8px; font-size: 20px; }
.article p { margin: 0 0 15px; color: #58454d; }
.article ul, .article ol { margin: 0 0 22px; padding-left: 22px; color: #58454d; }
.article li { margin: 6px 0; }
.steps { display: grid; gap: 14px; margin: 26px 0 30px; }
.step { display: grid; grid-template-columns: 44px 1fr; gap: 16px; padding: 18px; background: #fff; border: 1px solid var(--line); border-radius: 15px; }
.step-num { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 10px; color: #fff; background: var(--coral); font-weight: 800; }
.step h3 { margin: 0 0 5px; font-size: 17px; }
.step p { margin: 0; font-size: 14px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.faq-question { width: 100%; display: flex; justify-content: space-between; gap: 20px; padding: 18px 20px; border: 0; background: transparent; color: var(--ink); font: inherit; font-weight: 800; text-align: left; cursor: pointer; }
.faq-question span:last-child { color: var(--coral); font-size: 20px; }
.faq-answer { display: none; padding: 0 20px 18px; color: var(--muted); font-size: 14px; }
.faq-item.open .faq-answer { display: block; }
.faq-item.open .faq-question span:last-child { transform: rotate(45deg); }
.callout { margin: 30px 0; padding: 20px 22px; background: #fff0c9; border-left: 4px solid var(--gold); border-radius: 0 14px 14px 0; color: #72532c; }
.site-footer { padding: 48px 0 28px; background: #2d1e27; color: #f9ded2; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 35px; }
.site-footer .brand { color: #fff; }
.site-footer p, .site-footer li { color: #c8aeb0; font-size: 13px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: 6px 0; }
.site-footer a:hover { color: #fff; }
.disclaimer { margin-top: 32px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.14); color: #c8aeb0; font-size: 12px; }
.copyright { margin-top: 8px; color: #9d858a; font-size: 12px; }
@media (max-width: 800px) {
  .shell { width: min(100% - 28px, 620px); }
  .nav { min-height: 68px; }
  .nav-toggle { display: block; }
  .nav-links { display: none; position: absolute; left: 14px; right: 14px; top: 75px; padding: 9px; background: #fffaf6; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); }
  .nav-links.open { display: grid; }
  .nav-links a { padding: 12px 14px; }
  .hero { padding: 52px 0 60px; }
  .hero-grid { grid-template-columns: 1fr; gap: 35px; }
  .hero-art { order: -1; }
  .hero-art::before { width: 250px; height: 250px; }
  .phone { width: 220px; }
  .phone-tag { right: -33px; }
  .section { padding: 64px 0; }
  .section-head { display: block; }
  .section-head p { margin-top: 12px; }
  .feature-grid, .quote-grid { grid-template-columns: 1fr; }
  .screens { grid-template-columns: 1fr 1fr; }
  .screen-card:nth-child(2) { transform: none; }
  .screen-card:last-child { grid-column: 1 / -1; width: 54%; justify-self: center; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 22px; }
}
@media (max-width: 430px) {
  h1 { font-size: 34px; }
  .screens { grid-template-columns: 1fr; }
  .screen-card:last-child { width: 100%; }
}