:root {
  --bg: #fffaf7;
  --surface: #ffffff;
  --text: #111827;
  --muted: #4b5563;
  --line: #e5e7eb;
  --navy: #111a35;
  --blue: #4357ff;
  --orange: #ff6a3d;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; color: var(--text); background: linear-gradient(180deg, #ffffff 0%, #fff6f1 100%); }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
.hh-wrap { width: min(1140px, calc(100% - 40px)); margin: 0 auto; }
.hh-brand { display: inline-flex; align-items: center; justify-content: center; padding: 8px 14px; border-radius: 14px; background: var(--navy); overflow: visible; }
.site-logo, .logo img, .brand img, .header-logo img, .hh-brand img {
  display: block;
  width: auto;
  height: auto;
  max-height: 40px;
  max-width: 180px;
  object-fit: contain;
}
.hh-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.95); border-bottom: 1px solid var(--line); }
.hh-header-inner { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.hh-nav { display: flex; gap: 20px; color: var(--muted); font-size: 14px; }
.hh-menu-btn { display: none; border: 1px solid var(--line); background: #fff; color: var(--navy); padding: 10px 16px; border-radius: 999px; }
.hero, .section, .cta { padding: 72px 0; }
.hero-grid, .cta-box { display: grid; gap: 28px; align-items: center; }
.hero-grid { grid-template-columns: 1fr .88fr; }
.hero-device { padding: 20px; border-radius: 28px; background: linear-gradient(160deg, #fff1ea, #ffffff); border: 1px solid rgba(255,106,61,.22); }
.hero-device img { max-height: 330px; margin: 0 auto; object-fit: contain; }
.hero img, .hero-device img, .entry-grid img, .visual img, .card img { max-width: 100%; height: auto; object-fit: contain; }
.eyebrow { margin: 0 0 12px; color: var(--orange); font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, h3 { margin: 0 0 14px; line-height: 1.15; color: var(--navy); }
p { margin: 0; line-height: 1.8; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 24px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 22px; border-radius: 16px; font-weight: 700; }
.btn-primary { background: var(--orange); color: #fff; }
.btn-light { background: #fff; border: 1px solid var(--line); }
.entry-grid, .check-grid, .faq-list, .tag-list { display: grid; gap: 18px; }
.entry-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.entry-grid article, .check-grid article, .faq-list article { background: #fff; border: 1px solid var(--line); border-radius: 24px; padding: 22px; }
.entry-grid img { min-height: 170px; max-height: 210px; margin: 0 auto 16px; object-fit: contain; }
.alt { background: linear-gradient(180deg, rgba(255,106,61,.05), transparent); }
.check-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
.check-grid span { display: inline-flex; width: 40px; height: 40px; align-items: center; justify-content: center; border-radius: 12px; background: rgba(255,106,61,.14); color: var(--orange); font-weight: 700; margin-bottom: 14px; }
.timeline { display: grid; gap: 16px; }
.timeline article { display: grid; grid-template-columns: 72px 1fr; gap: 16px; align-items: start; padding: 18px 20px; border-radius: 22px; background: #fff; border: 1px solid var(--line); }
.timeline strong { display: inline-flex; width: 56px; height: 56px; align-items: center; justify-content: center; border-radius: 16px; background: var(--navy); color: #fff; }
.tag-list { grid-template-columns: repeat(5, minmax(0,1fr)); }
.tag-list span { display: inline-flex; justify-content: center; padding: 12px 16px; border-radius: 999px; background: #fff; border: 1px solid var(--line); font-weight: 600; }
.cta { padding-top: 0; }
.cta-box { grid-template-columns: 1fr auto; padding: 34px; border-radius: 28px; background: linear-gradient(135deg, var(--navy), #283577); color: #fff; }
.cta-box h2, .cta-box p { color: #fff; }
.hh-backtop { position: fixed; right: 20px; bottom: 20px; display: none; width: 46px; height: 46px; border: 0; border-radius: 50%; background: var(--orange); color: #fff; font-weight: 700; }
.hh-backtop.is-visible { display: inline-flex; align-items: center; justify-content: center; }
@media (max-width: 980px) {
  .hh-menu-btn { display: inline-flex; }
  .hh-nav { display: none; position: absolute; top: 74px; left: 20px; right: 20px; flex-direction: column; padding: 16px; background: #fff; border: 1px solid var(--line); border-radius: 18px; }
  .hh-nav.is-open { display: flex; }
  .hero-grid, .entry-grid, .check-grid, .tag-list, .cta-box, .timeline article { grid-template-columns: 1fr; }
}

.brand-logo,
.logo-wrap,
.header-logo,
.nav-brand,
.brand,
.hh-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 6px 14px;
  border-radius: 12px;
  background: #10172a;
  text-decoration: none;
  line-height: 1;
  flex-shrink: 0;
}

.site-logo,
.brand-logo img,
.logo-wrap img,
.header-logo img,
.nav-brand img,
.logo img,
.brand img,
.hh-brand img {
  display: block;
  width: auto;
  height: auto;
  max-height: 36px;
  max-width: 190px;
  object-fit: contain;
}