* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #FFFFFF;
  color: #1F2329;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.75;
  padding-top: 82px;
}

body.drawer-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(201,0,0,0.08);
}

.header-inner {
  max-width: 1180px;
  margin: 0 auto;
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 22px;
}

.logo {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.logo img {
  max-height: 52px;
  width: auto;
}

.nav-core {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  white-space: nowrap;
  flex-wrap: nowrap;
  flex: 1 1 auto;
  overflow: hidden;
}

.nav-core a {
  color: #1F2329;
  background: #F6F7F9;
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 15px;
  transition: .2s ease;
}

.nav-core a:hover,
.nav-core a.active {
  color: #C90000;
  background: rgba(201,0,0,0.08);
}

.main-btn,
.header-register {
  background: linear-gradient(180deg, #F12B2B 0%, #C90000 55%, #A80000 100%);
  color: #FFFFFF;
  border-radius: 999px;
  padding: 11px 22px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  box-shadow: 0 10px 22px rgba(201,0,0,.22);
}

.header-register {
  flex: 0 0 auto;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(201,0,0,0.12);
  border-radius: 14px;
  background: #FFFFFF;
  padding: 10px;
}

.menu-toggle span {
  display: block;
  height: 2px;
  background: #C90000;
  margin: 5px 0;
  border-radius: 999px;
}

.site-main {
  min-height: 70vh;
  padding-bottom: 56px;
}

.container,
.section {
  width: min(1180px, calc(100% - 40px));
  margin-left: auto;
  margin-right: auto;
}

.section {
  padding: 42px 0;
}

.section.compact {
  padding: 26px 0;
}

h1,
h2,
h3,
.section-title {
  color: #C90000;
  line-height: 1.28;
  margin: 0 0 14px;
}

h1 {
  font-size: clamp(30px, 5vw, 48px);
}

h2 {
  font-size: clamp(24px, 3vw, 34px);
}

h3 {
  font-size: 20px;
}

p {
  margin: 0 0 14px;
}

.lead {
  color: #5D6673;
  font-size: 17px;
}

.muted {
  color: #5D6673;
}

.small {
  color: #8A93A0;
  font-size: 14px;
}

.hero {
  width: min(1180px, calc(100% - 40px));
  margin: 28px auto 16px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
  gap: 28px;
  align-items: center;
  background: #F6F7F9;
  border: 1px solid rgba(201,0,0,0.10);
  border-radius: 24px;
  padding: 32px;
  box-shadow: 0 12px 30px rgba(18,28,45,0.08);
}

.hero.hero-clean {
  grid-template-columns: minmax(0, 1fr);
  text-align: left;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.sub-btn {
  color: #C90000;
  background: rgba(201,0,0,0.08);
  border: 1px solid rgba(201,0,0,0.12);
  border-radius: 999px;
  padding: 10px 18px;
  font-weight: 700;
}

.media-panel {
  margin: 0;
  background: #FFFFFF;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(201,0,0,0.08);
}

.media-panel img {
  width: 100%;
  height: 260px;
  object-fit: contain;
  background: #F7F8FA;
}

.banner-slider {
  max-width: 1180px;
  margin: 24px auto 34px;
  border-radius: 22px;
  background: #F7F8FA;
  box-shadow: 0 12px 30px rgba(18,28,45,0.08);
  overflow: hidden;
  position: relative;
  height: clamp(260px, 29vw, 360px);
}

.banner-slider img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #F7F8FA;
}

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity .45s ease;
}

.slide.active {
  opacity: 1;
  pointer-events: auto;
}

.slider-prev,
.slider-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 0;
  background: rgba(255,255,255,.88);
  color: #C90000;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(18,28,45,.14);
}

.slider-prev {
  left: 16px;
}

.slider-next {
  right: 16px;
}

.slider-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 16px;
  display: flex;
  justify-content: center;
  gap: 8px;
}

.slider-dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  border: 0;
  background: rgba(31,35,41,.35);
  padding: 0;
  cursor: pointer;
}

.slider-dot.active {
  width: 24px;
  background: #C90000;
}

.banner-caption,
.banner-text,
.slide-title,
.slide-desc,
.slide-content,
.slide-card,
.banner-card {
  display: none !important;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.card,
.zone-card,
.info-card,
.review-card,
.faq-item,
.stat-card,
.notice-box {
  background: #FFFFFF;
  border: 1px solid rgba(201,0,0,0.10);
  box-shadow: 0 12px 30px rgba(18,28,45,0.08);
  border-radius: 18px;
}

.card,
.info-card,
.review-card,
.faq-item,
.stat-card,
.notice-box {
  padding: 22px;
}

.card h3,
.info-card h3,
.review-card h3,
.faq-item h3,
.stat-card h3,
.notice-box h3 {
  margin-bottom: 10px;
}

.info-card img,
.zone-card img,
.content-img {
  max-width: 100%;
  height: auto;
  max-height: 230px;
  object-fit: contain;
  background: #F7F8FA;
}

.zone-card {
  overflow: hidden;
}

.zone-card img,
.product-card img {
  width: 100%;
  height: 170px;
  object-fit: contain;
  background: #F7F8FA;
}

.zone-card .zone-body,
.product-card .product-body {
  padding: 18px;
}

.stat-wrap {
  background: #C90000;
  border-radius: 22px;
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  box-shadow: 0 12px 30px rgba(201,0,0,.16);
}

.stat-card {
  background: rgba(255,255,255,.97);
  box-shadow: none;
}

.stat-card strong {
  color: #C90000;
  font-size: 24px;
  display: block;
  margin-bottom: 6px;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 0;
}

.pill-list a,
.pill-list span {
  border-radius: 999px;
  padding: 9px 14px;
  color: #C90000;
  background: rgba(201,0,0,0.08);
  border: 1px solid rgba(201,0,0,0.10);
  font-weight: 700;
}

.article-list {
  display: grid;
  gap: 14px;
}

.article-line {
  padding: 16px 18px;
  border-radius: 16px;
  background: #F6F7F9;
  border: 1px solid rgba(201,0,0,0.08);
}

.article-line h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

.notice-box {
  background: #F6F7F9;
}

.side-category {
  position: fixed;
  top: 96px;
  left: 18px;
  width: 168px;
  max-height: calc(100vh - 120px);
  overflow: auto;
  padding: 12px;
  background: #FFFFFF;
  border: 1px solid rgba(201,0,0,0.10);
  border-radius: 18px;
  box-shadow: 0 12px 30px rgba(18,28,45,0.08);
  z-index: 600;
}

.side-category a {
  display: block;
  color: #1F2329;
  border-radius: 12px;
  padding: 8px 10px;
  margin: 2px 0;
  font-size: 14px;
  white-space: nowrap;
}

.side-category a:hover,
.side-category a.active {
  color: #C90000;
  background: rgba(201,0,0,0.08);
}

.drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.36);
  z-index: 1200;
  opacity: 0;
  pointer-events: none;
  transition: .22s ease;
}

.drawer-mask.show {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: min(84vw, 320px);
  height: 100vh;
  background: #FFFFFF;
  z-index: 1300;
  transform: translateX(-102%);
  transition: .25s ease;
  box-shadow: 12px 0 32px rgba(18,28,45,.18);
  overflow-y: auto;
}

.mobile-drawer.show {
  transform: translateX(0);
}

.drawer-head {
  min-height: 74px;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(201,0,0,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.drawer-head img {
  max-height: 46px;
}

.drawer-close {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  border: 1px solid rgba(201,0,0,0.12);
  background: #F6F7F9;
  color: #C90000;
  font-size: 24px;
  cursor: pointer;
}

.drawer-nav {
  padding: 12px;
}

.drawer-nav a {
  display: block;
  padding: 12px 14px;
  margin-bottom: 6px;
  border-radius: 14px;
  color: #1F2329;
  background: #F6F7F9;
}

.drawer-nav a.active {
  color: #C90000;
  background: rgba(201,0,0,0.08);
}

.site-footer {
  background: #11151C;
  color: #E7ECF3;
  padding: 44px 0 0;
}

.footer-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.3fr);
  gap: 34px;
}

.footer-brand img {
  max-height: 52px;
  margin-bottom: 14px;
}

.footer-brand p {
  color: #C9D2DD;
}

.footer-note {
  color: #AEB9C6 !important;
  font-size: 14px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.footer-links h3 {
  color: #FFFFFF;
  font-size: 17px;
}

.footer-links a {
  display: block;
  color: #C9D2DD;
  margin: 8px 0;
}

.copyright {
  margin-top: 34px;
  border-top: 1px solid rgba(255,255,255,.10);
  text-align: center;
  padding: 18px;
  color: #AEB9C6;
  font-size: 14px;
}

.mobile-bottom-nav {
  display: none;
}

.simple-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 16px;
  background: #FFFFFF;
  box-shadow: 0 12px 30px rgba(18,28,45,0.08);
}

.simple-table th,
.simple-table td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(201,0,0,0.08);
}

.simple-table th {
  color: #C90000;
  background: rgba(201,0,0,0.06);
}

@media (max-width: 1380px) {
  .side-category {
    display: none;
  }
}

@media (max-width: 900px) {
  body {
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .header-inner {
    min-height: 68px;
    display: grid;
    grid-template-columns: 48px 1fr auto;
    gap: 10px;
    padding: 0 14px;
  }

  .menu-toggle {
    display: block;
  }

  .logo {
    justify-content: center;
  }

  .logo img {
    max-height: 46px;
  }

  .nav-core {
    display: none;
  }

  .header-register {
    padding: 9px 15px;
    font-size: 14px;
  }

  .container,
  .section,
  .hero {
    width: min(100% - 26px, 1180px);
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 22px;
    margin-top: 18px;
  }

  .media-panel img {
    height: 220px;
  }

  .banner-slider {
    width: min(100% - 26px, 1180px);
    height: clamp(150px, 48vw, 210px);
    margin: 16px auto 20px;
    border-radius: 18px;
  }

  .slider-prev,
  .slider-next {
    width: 34px;
    height: 34px;
    font-size: 22px;
  }

  .slider-prev {
    left: 10px;
  }

  .slider-next {
    right: 10px;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .footer-inner,
  .footer-links,
  .stat-wrap {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 30px 0;
  }

  .zone-card img,
  .product-card img {
    height: 148px;
  }

  .info-card img,
  .content-img {
    max-height: 190px;
  }

  .mobile-bottom-nav {
    position: fixed;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    background: #FFFFFF;
    border-top: 1px solid rgba(18,28,45,0.12);
    box-shadow: 0 -8px 24px rgba(18,28,45,0.08);
  }

  .mobile-bottom-nav a {
    padding: 10px 4px 12px;
    text-align: center;
    font-size: 13px;
    color: #5D6673;
  }

  .mobile-bottom-nav a::before {
    content: "";
    width: 6px;
    height: 6px;
    display: block;
    margin: 0 auto 4px;
    border-radius: 50%;
    background: #CBD2DA;
  }

  .mobile-bottom-nav a.active {
    color: #C90000;
    font-weight: 700;
  }

  .mobile-bottom-nav a.active::before {
    background: #C90000;
  }
}