:root {
  --red: #C90000;
  --red-dark: #A80000;
  --red-light: rgba(201,0,0,0.08);
  --text: #1F2329;
  --muted: #5D6673;
  --soft: #8A93A0;
  --line: rgba(201,0,0,0.12);
  --bg: #FFFFFF;
  --bg-soft: #F6F7F9;
  --bg-zone: #F1F3F6;
  --shadow: 0 12px 30px rgba(18,28,45,0.08);
  --radius: 18px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #FFFFFF;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.78;
  padding-top: 82px;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
p { margin: 0 0 14px; color: var(--muted); }
h1,h2,h3,.section-title { color: var(--red); line-height: 1.25; margin: 0 0 16px; }
h1 { font-size: clamp(30px, 5vw, 54px); letter-spacing: -1px; }
h2,.section-title { font-size: clamp(24px, 3vw, 34px); }
h3 { font-size: 20px; }
.site-header {
  position: fixed;
  z-index: 1000;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(201,0,0,0.08);
}
.header-inner {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo img { max-height: 52px; width: auto; }
.nav-core { display: flex; align-items: center; gap: 10px; white-space: nowrap; flex-wrap: nowrap; }
.nav-core a {
  color: var(--text);
  background: var(--bg-soft);
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 700;
  transition: .2s ease;
}
.nav-core a:hover,
.nav-core a.active { color: var(--red); background: var(--red-light); }
.nav-register,
.main-btn {
  background: linear-gradient(180deg, #F12B2B 0%, #C90000 55%, #A80000 100%);
  color: #FFFFFF;
  border-radius: 999px;
  padding: 11px 22px;
  min-width: 78px;
  text-align: center;
  font-weight: 800;
  box-shadow: 0 10px 22px rgba(201,0,0,0.22);
  white-space: nowrap;
}
.nav-register:hover,
.main-btn:hover { transform: translateY(-1px); }
.ghost-btn {
  border: 1px solid var(--line);
  color: var(--red);
  border-radius: 999px;
  padding: 10px 20px;
  font-weight: 800;
  background: #fff;
}
.menu-toggle { display: none; border: 0; background: transparent; padding: 10px; }
.menu-toggle span { display: block; width: 23px; height: 2px; background: var(--text); margin: 5px 0; border-radius: 99px; }
.site-shell {
  width: min(1430px, calc(100% - 34px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}
.site-main { min-width: 0; }
.side-wrap { position: sticky; top: 96px; padding-top: 22px; }
.side-category {
  background: #FFFFFF;
  border: 1px solid rgba(201,0,0,0.10);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 12px;
  max-height: calc(100vh - 116px);
  overflow: auto;
}
.side-category a {
  display: block;
  color: var(--text);
  border-radius: 12px;
  padding: 9px 12px;
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 2px;
}
.side-category a:hover,
.side-category a.active { color: var(--red); background: var(--red-light); }
.banner-slider {
  max-width: 1180px;
  margin: 24px auto 34px;
  border-radius: 22px;
  background: #F7F8FA;
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
  height: min(32vw, 360px);
  min-height: 260px;
}
.slide { position: absolute; inset: 0; opacity: 0; transition: opacity .45s ease; }
.slide.active { opacity: 1; z-index: 2; }
.banner-slider img { width: 100%; height: 100%; object-fit: contain; background: #F7F8FA; }
.banner-caption,.banner-text,.slide-title,.slide-desc,.slide-content,.slide-card,.banner-card { display: none !important; }
.slider-prev,.slider-next {
  position: absolute;
  z-index: 5;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 0;
  background: rgba(255,255,255,0.86);
  color: var(--red);
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(18,28,45,0.14);
}
.slider-prev { left: 18px; }
.slider-next { right: 18px; }
.slider-dots { position: absolute; z-index: 5; left: 0; right: 0; bottom: 16px; display: flex; justify-content: center; gap: 9px; }
.slider-dot { width: 9px; height: 9px; border-radius: 99px; border: 0; background: rgba(31,35,41,0.26); padding: 0; cursor: pointer; }
.slider-dot.active { width: 24px; background: var(--red); }
.section { padding: 34px 0; }
.section-inner { width: min(1180px, 100%); margin: 0 auto; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 20px; }
.section-head p { max-width: 640px; margin-bottom: 0; }
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card,.zone-card,.info-card,.review-card,.faq-card,.notice-card {
  background: #FFFFFF;
  border: 1px solid rgba(201,0,0,0.10);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  padding: 22px;
}
.card .num,.stat-number,.eyebrow,.tag {
  color: var(--red);
  font-weight: 900;
}
.eyebrow { display: inline-block; background: var(--red-light); border-radius: 999px; padding: 5px 12px; margin-bottom: 12px; }
.zone-card img,.info-card img,.content-img { max-width: 100%; height: auto; max-height: 230px; object-fit: contain; margin: 0 auto 16px; background: #F7F8FA; border-radius: 16px; }
.product-card img { width: 100%; height: 170px; object-fit: contain; background: #F7F8FA; border-radius: 16px; margin-bottom: 14px; }
.feature-row {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 22px;
  align-items: center;
}
.feature-row.reverse { grid-template-columns: .95fr 1.05fr; }
.feature-row.reverse .feature-copy { order: 2; }
.feature-row.reverse .feature-media { order: 1; }
.feature-media img { width: 100%; max-height: 300px; object-fit: contain; background: #F7F8FA; border-radius: 22px; box-shadow: var(--shadow); }
.quick-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
.stats-band { background: linear-gradient(135deg, #C90000 0%, #A80000 100%); border-radius: 22px; padding: 22px; color: #fff; box-shadow: var(--shadow); }
.stats-band .grid { gap: 14px; }
.stat-card { background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.18); border-radius: 18px; padding: 18px; }
.stat-card h3,.stat-card p,.stat-number { color: #fff; }
.horizontal-scroll { display: grid; grid-template-columns: repeat(4, minmax(180px, 1fr)); gap: 16px; }
.inner-hero {
  width: min(1180px, 100%);
  margin: 24px auto 28px;
  background: linear-gradient(135deg, #FFFFFF 0%, #F6F7F9 100%);
  border: 1px solid var(--line);
  border-radius: 26px;
  box-shadow: var(--shadow);
  padding: 30px;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 26px;
  align-items: center;
}
.inner-hero img { width: 100%; max-height: 290px; object-fit: contain; background: #F7F8FA; border-radius: 22px; }
.inner-hero.no-image { display: block; }
.service-list { display: grid; gap: 12px; margin-top: 10px; }
.service-list li { color: var(--muted); }
.check-list { padding-left: 18px; margin: 0; }
.check-list li { margin-bottom: 8px; color: var(--muted); }
.review-card p { color: var(--text); }
.review-card strong { color: var(--red); display: block; margin-bottom: 8px; }
.faq-card h3 { color: var(--text); }
.soft-zone { background: var(--bg-soft); border-radius: 26px; padding: 28px; }
.site-footer { background: #11151C; color: #E7ECF3; margin-top: 52px; }
.footer-grid { width: min(1180px, calc(100% - 36px)); margin: 0 auto; padding: 42px 0 28px; display: grid; grid-template-columns: 1.55fr repeat(3, 1fr); gap: 30px; }
.footer-brand img { max-height: 52px; width: auto; margin-bottom: 14px; }
.site-footer p,.site-footer a { color: #BFC8D6; }
.site-footer a { display: block; margin: 8px 0; }
.site-footer h3 { color: #FFFFFF; font-size: 17px; }
.footer-note { color: #E7ECF3 !important; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.10); width: min(1180px, calc(100% - 36px)); margin: 0 auto; padding: 18px 0 24px; display: flex; justify-content: space-between; gap: 16px; color: #BFC8D6; }
.drawer-mask,.mobile-drawer { display: none; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1180px) {
  .site-shell { grid-template-columns: 170px minmax(0,1fr); gap: 20px; }
  .nav-core a { padding: 9px 13px; }
}
@media (max-width: 980px) {
  body { padding-top: 70px; padding-bottom: 74px; }
  .header-inner { min-height: 64px; width: min(100% - 22px, 760px); display: grid; grid-template-columns: 46px 1fr auto; gap: 10px; }
  .menu-toggle { display: block; }
  .logo { justify-self: center; }
  .logo img { max-height: 44px; }
  .nav-core { display: none; }
  .nav-register { padding: 9px 15px; min-width: 64px; }
  .site-shell { width: min(100% - 22px, 760px); display: block; }
  .side-wrap { display: none; }
  .drawer-mask { display: block; position: fixed; inset: 0; background: rgba(0,0,0,0.42); opacity: 0; pointer-events: none; transition: .2s; z-index: 1100; }
  .mobile-drawer { display: block; position: fixed; top: 0; bottom: 0; left: 0; width: min(84vw, 320px); background: #FFFFFF; z-index: 1200; transform: translateX(-105%); transition: .25s ease; box-shadow: 20px 0 40px rgba(0,0,0,0.16); overflow-y: auto; }
  body.drawer-open { overflow: hidden; }
  body.drawer-open .drawer-mask { opacity: 1; pointer-events: auto; }
  body.drawer-open .mobile-drawer { transform: translateX(0); }
  .drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 16px; border-bottom: 1px solid var(--line); }
  .drawer-logo img { max-height: 44px; }
  .drawer-close { border: 0; background: var(--bg-soft); color: var(--red); width: 36px; height: 36px; border-radius: 50%; font-size: 24px; }
  .drawer-nav { padding: 12px; }
  .drawer-nav a { display: block; padding: 12px 14px; border-radius: 14px; color: var(--text); font-weight: 800; }
  .drawer-nav a.active,.drawer-nav a:hover { color: var(--red); background: var(--red-light); }
  .banner-slider { margin-top: 18px; border-radius: 18px; height: 190px; min-height: 150px; max-height: 210px; }
  .slider-prev,.slider-next { width: 34px; height: 34px; font-size: 24px; }
  .slider-prev { left: 10px; }
  .slider-next { right: 10px; }
  .section { padding: 24px 0; }
  .section-head { display: block; }
  .grid-2,.grid-3,.grid-4,.feature-row,.feature-row.reverse,.inner-hero { grid-template-columns: 1fr; }
  .feature-row.reverse .feature-copy,.feature-row.reverse .feature-media { order: initial; }
  .inner-hero { padding: 22px; }
  .inner-hero img,.feature-media img { max-height: 230px; }
  .horizontal-scroll { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); }
  .product-card img { height: 135px; }
  .zone-card img,.info-card img,.content-img { max-height: 180px; }
  .footer-grid { grid-template-columns: 1fr; padding-bottom: 18px; }
  .footer-bottom { display: block; }
  .mobile-bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 1050; display: grid; grid-template-columns: repeat(4,1fr); background: #FFFFFF; border-top: 1px solid #E5E8ED; box-shadow: 0 -8px 24px rgba(18,28,45,0.08); }
  .mobile-bottom-nav a { text-align: center; padding: 8px 4px 7px; color: var(--muted); font-size: 12px; font-weight: 800; }
  .mobile-bottom-nav span { display: block; font-size: 18px; line-height: 1; }
  .mobile-bottom-nav a.active { color: var(--red); }
}
@media (max-width: 560px) {
  h1 { font-size: 30px; }
  .grid,.horizontal-scroll { grid-template-columns: 1fr; }
  .card,.zone-card,.info-card,.review-card,.faq-card,.notice-card { padding: 18px; }
  .stats-band { padding: 16px; }
  .banner-slider { height: 170px; }
  .quick-actions a { width: 100%; }
}