:root {
  --brand: #f87307;
  --brand-soft: #fff0e4;
  --bg: #fffdfb;
  --text: #111827;
  --muted: #6b7280;
}
* { box-sizing: border-box; }
html, body { overflow-x: hidden; }
body { margin: 0; font-family: "Microsoft YaHei", Arial, sans-serif; color: var(--text); background: linear-gradient(180deg, #fff 0%, #fffcf8 70%, #fff 100%); line-height: 1.5; }
.container { width: min(1120px, 92%); margin: 0 auto; }
.site-header { position: sticky; top: 0; background: #ffffffd9; backdrop-filter: blur(12px); border-bottom: 1px solid #f2ece7; z-index: 10; }
.nav-wrap { display: flex; justify-content: space-between; align-items: center; height: 70px; }
.brand { font-size: 24px; font-weight: 800; display: flex; align-items: center; gap: 10px; }
.brand-dot { width: 14px; height: 14px; background: var(--brand); border-radius: 50%; display: inline-block; }
.nav { display: flex; gap: 20px; }
.nav a { text-decoration: none; color: #374151; font-size: 14px; transition: color .2s ease; }
.nav a:hover { color: var(--brand); }
.hero { position: relative; background: radial-gradient(circle at 88% 20%, #ffe6d0 0%, #fff 44%), linear-gradient(135deg, #fff5eb, #ffffff); padding: 86px 0 76px; overflow: hidden; }
.hero::before { content: ""; position: absolute; width: 420px; height: 420px; right: -160px; top: -170px; border-radius: 999px; background: radial-gradient(circle, rgba(248,115,7,.16), rgba(248,115,7,0)); pointer-events: none; }
.hero::after { content: ""; position: absolute; width: 320px; height: 320px; left: -120px; bottom: -180px; border-radius: 999px; background: radial-gradient(circle, rgba(248,115,7,.09), rgba(248,115,7,0)); pointer-events: none; }
.hero-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 36px; align-items: center; }
.hero-main { max-width: 640px; }
.badge { display: inline-block; color: var(--brand); background: var(--brand-soft); border-radius: 999px; padding: 8px 14px; font-size: 14px; font-weight: 700; border: 1px solid #ffd8ba; }
h1 { font-size: 56px; margin: 14px 0 10px; line-height: 1.14; letter-spacing: -0.8px; }
.hero-desc { color: var(--muted); font-size: 18px; line-height: 1.7; max-width: 620px; }
.hero-actions { display: flex; gap: 12px; margin-top: 22px; }
.hero-qr { object-fit: cover; border-radius: 20px; border: 1px solid #f3f4f6; box-shadow: 0 22px 45px rgba(17, 24, 39, 0.16); background: #fff; display: block; }
.hero-qr-top { width: 172px; height: 172px; margin: 0 0 14px; }
.hero-qr-bottom { width: 160px; height: 160px; margin-top: 20px; }
.btn { padding: 12px 18px; border-radius: 10px; text-decoration: none; font-weight: 700; transition: all .2s ease; }
.btn.primary { background: var(--brand); color: #fff; box-shadow: 0 10px 22px rgba(248, 115, 7, .3); }
.btn.primary:hover { transform: translateY(-1px); }
.btn.ghost { border: 1px solid #f1c7a6; color: #b45309; background: #fff; }
.btn.ghost:hover { border-color: var(--brand); color: var(--brand); }
.hero-card { background: linear-gradient(180deg, #ffffff 0%, #fffaf5 100%); border-radius: 20px; box-shadow: 0 20px 44px rgba(17, 24, 39, 0.12); padding: 26px; border: 1px solid #f3f4f6; }
.hero-card h3 { margin-top: 0; font-size: 22px; }
.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.stat { border: 1px solid #f3f4f6; border-radius: 14px; padding: 14px; background: #fff; }
.stat p { margin: 0; color: var(--brand); font-size: 24px; font-weight: 700; }
.stat span { color: var(--muted); font-size: 14px; }
.section { padding: 74px 0; }
.section.alt { background: linear-gradient(180deg, #fffdf9 0%, var(--bg) 100%); }
.section-head { margin-bottom: 22px; }
.section-tag { margin: 0 0 8px; color: var(--brand); font-weight: 700; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; }
h2 { margin: 0; font-size: 36px; letter-spacing: -0.4px; }
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cards-grid.compact { grid-template-columns: repeat(2, 1fr); }
.card { background: #fff; border: 1px solid #f3f4f6; border-radius: 16px; padding: 20px; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.card:hover { transform: translateY(-4px); box-shadow: 0 16px 32px rgba(17, 24, 39, 0.1); border-color: #ffe0c5; }
.card h3 { margin: 0 0 10px; font-size: 20px; }
.card p { margin: 0; color: #4b5563; line-height: 1.7; }
.logo-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.logo-card { background: #fff; border-radius: 14px; border: 1px solid #f3f4f6; padding: 16px; transition: all .2s ease; }
.logo-card:hover { border-color: #ffd8ba; box-shadow: 0 10px 24px rgba(248,115,7,.14); transform: translateY(-2px); }
.logo-card h4 { margin: 0 0 8px; }
.logo-card p { margin: 0; color: var(--muted); }
.site-footer { background: linear-gradient(120deg, #111827 0%, #1f2937 100%); color: #e5e7eb; padding: 44px 0; }
.footer-wrap { display: flex; justify-content: space-between; gap: 20px; }
.site-footer a { color: #fde68a; }

@media (max-width: 900px) {
  .hero-grid, .cards-grid, .cards-grid.compact, .logo-grid { grid-template-columns: 1fr; }
  .nav { display: none; }
  h1 { font-size: 38px; }
  h2 { font-size: 30px; }
  .hero { padding: 52px 0; }
  .hero-qr-top { width: 146px; height: 146px; margin: 0 0 12px; }
  .hero-qr-bottom { width: 128px; height: 128px; margin: 14px 0 0; }
}