* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-height: 100vh;
    background: #FFFFFF;
    color: #1F2329;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    line-height: 1.72;
    padding-top: 86px;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    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: 1280px;
    margin: 0 auto;
    min-height: 74px;
    padding: 0 24px;
    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; justify-content: center; gap: 10px; white-space: nowrap; flex-wrap: nowrap; flex: 1; }
.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); }
.register-btn,
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 10px 22px;
    border-radius: 999px;
    background: linear-gradient(180deg, #F12B2B 0%, #C90000 55%, #A80000 100%);
    color: #FFFFFF;
    font-weight: 700;
    border: 0;
    box-shadow: 0 10px 22px rgba(201,0,0,0.22);
    white-space: nowrap;
}
.menu-toggle { display: none; width: 40px; height: 40px; border: 0; background: #F6F7F9; border-radius: 12px; align-items: center; justify-content: center; flex-direction: column; gap: 4px; }
.menu-toggle span { width: 19px; height: 2px; background: #1F2329; border-radius: 99px; }
.site-layout {
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px 24px 0;
    display: grid;
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}
.site-main { min-width: 0; }
.side-category {
    position: sticky;
    top: 96px;
    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);
    padding: 12px;
    max-height: calc(100vh - 112px);
    overflow: auto;
}
.side-category a {
    display: block;
    color: #1F2329;
    border-radius: 12px;
    padding: 9px 12px;
    font-size: 14px;
    margin: 2px 0;
    transition: .2s ease;
}
.side-category a:hover,
.side-category a.active { color: #C90000; background: rgba(201,0,0,0.08); }
.section,
.page-hero,
.home-block {
    background: #FFFFFF;
    border: 1px solid rgba(201,0,0,0.10);
    box-shadow: 0 12px 30px rgba(18,28,45,0.08);
    border-radius: 22px;
    padding: 28px;
    margin-bottom: 24px;
}
h1, h2, h3, .section-title { color: #C90000; line-height: 1.3; }
h1 { font-size: clamp(30px, 4vw, 48px); margin: 0 0 16px; }
h2 { font-size: clamp(23px, 2.6vw, 32px); margin: 0 0 18px; }
h3 { font-size: 20px; margin: 0 0 10px; }
p { margin: 0 0 12px; color: #5D6673; }
.lead { font-size: 18px; color: #1F2329; }
.muted { color: #8A93A0; }
.hero-grid,
.two-col { display: grid; grid-template-columns: 1.08fr .92fr; gap: 26px; align-items: center; }
.hero-media,
.media-box { background: #F7F8FA; border-radius: 18px; overflow: hidden; border: 1px solid rgba(201,0,0,0.08); }
.hero-media img,
.media-box img { width: 100%; height: 280px; object-fit: contain; background: #F7F8FA; }
.banner-slider {
    max-width: 100%;
    margin: 0 0 24px;
    border-radius: 22px;
    background: #F7F8FA;
    box-shadow: 0 12px 30px rgba(18,28,45,0.08);
    overflow: hidden;
    position: relative;
    min-height: 260px;
    height: min(32vw, 360px);
    border: 1px solid rgba(201,0,0,0.08);
}
.banner-slider .slide { position: absolute; inset: 0; opacity: 0; transition: opacity .5s ease; pointer-events: none; }
.banner-slider .slide.active { opacity: 1; pointer-events: auto; }
.banner-slider img { width: 100%; height: 100%; object-fit: contain; background: #F7F8FA; }
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 0;
    background: rgba(255,255,255,0.86);
    color: #C90000;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 8px 18px rgba(18,28,45,0.10);
}
.slider-prev { left: 18px; }
.slider-next { right: 18px; }
.slider-dots { position: absolute; left: 0; right: 0; bottom: 14px; display: flex; align-items: center; justify-content: center; gap: 8px; }
.slider-dot { width: 10px; height: 10px; border-radius: 50%; border: 0; background: rgba(31,35,41,0.28); cursor: pointer; }
.slider-dot.active { background: #C90000; width: 24px; border-radius: 999px; }
.banner-caption,
.banner-text,
.slide-title,
.slide-desc,
.slide-content,
.slide-card,
.banner-card { display: none !important; }
.quick-grid,
.stat-grid,
.card-grid,
.product-grid,
.review-grid,
.faq-grid,
.notice-grid { display: grid; gap: 18px; }
.quick-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
.stat-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
.card-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.product-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
.review-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
.faq-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
.notice-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.card,
.zone-card,
.info-card,
.review-card,
.faq-card,
.step-card,
.stat-card,
.product-card,
.quick-card {
    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;
    padding: 18px;
}
.stat-card { background: linear-gradient(180deg, rgba(201,0,0,0.08), #FFFFFF 62%); }
.stat-card strong { display: block; color: #C90000; font-size: 24px; margin-bottom: 6px; }
.product-card img,
.zone-card img,
.info-card img,
.quick-card img,
.content-img { width: 100%; max-width: 100%; height: 170px; object-fit: contain; background: #F7F8FA; border-radius: 14px; margin-bottom: 12px; }
.info-card img,
.zone-card img { max-height: 210px; }
.split-image { width: 100%; height: 260px; object-fit: contain; background: #F7F8FA; border-radius: 18px; border: 1px solid rgba(201,0,0,0.08); }
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 0; }
.tag-list a,
.tag { display: inline-flex; padding: 8px 12px; border-radius: 999px; background: rgba(201,0,0,0.08); color: #C90000; font-weight: 700; font-size: 14px; }
.list-check { padding: 0; margin: 0; list-style: none; display: grid; gap: 10px; }
.list-check li { position: relative; padding-left: 22px; color: #5D6673; }
.list-check li::before { content: ""; position: absolute; left: 0; top: 12px; width: 8px; height: 8px; border-radius: 50%; background: #C90000; }
.page-intro { max-width: 780px; }
.home-summary { background: #F1F3F6; }
.legal-strip { background: #11151C; color: #E7ECF3; border-radius: 22px; padding: 24px; margin-bottom: 24px; }
.legal-strip h2 { color: #FFFFFF; }
.legal-strip p { color: #E7ECF3; }
.site-footer { margin-top: 32px; background: #11151C; color: #E7ECF3; }
.footer-inner { max-width: 1280px; margin: 0 auto; padding: 42px 24px; display: grid; grid-template-columns: 1.4fr .7fr .7fr 1fr; gap: 28px; }
.footer-brand img { max-height: 54px; width: auto; margin-bottom: 16px; }
.footer-brand p,
.footer-note p { color: #E7ECF3; }
.footer-links h3,
.footer-note h3 { color: #FFFFFF; }
.footer-links a { display: block; color: #E7ECF3; margin: 8px 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.10); text-align: center; padding: 14px 24px; color: #B9C3D0; }
.drawer-mask { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.42); z-index: 1100; }
.mobile-drawer { position: fixed; top: 0; left: 0; width: 84vw; max-width: 320px; height: 100vh; background: #FFFFFF; z-index: 1101; transform: translateX(-104%); transition: transform .25s ease; box-shadow: 16px 0 40px rgba(18,28,45,0.18); overflow-y: auto; }
.drawer-open .mobile-drawer { transform: translateX(0); }
.drawer-open .drawer-mask { display: block; }
.drawer-open { overflow: hidden; }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 16px; border-bottom: 1px solid rgba(201,0,0,0.10); }
.drawer-logo img { max-height: 46px; width: auto; }
.drawer-close { width: 38px; height: 38px; border: 0; border-radius: 50%; background: #F6F7F9; color: #C90000; font-size: 28px; line-height: 1; }
.drawer-links { padding: 12px; }
.drawer-link { display: block; padding: 12px 14px; border-radius: 12px; color: #1F2329; }
.drawer-link.active,
.drawer-link:hover { color: #C90000; background: rgba(201,0,0,0.08); }
.mobile-bottom-nav { display: none; }
@media (max-width: 1180px) {
    .site-layout { grid-template-columns: 1fr; }
    .side-category { display: none; }
}
@media (max-width: 860px) {
    body { padding-top: 72px; padding-bottom: 76px; }
    .header-inner { min-height: 64px; padding: 0 14px; gap: 12px; }
    .menu-toggle { display: inline-flex; }
    .nav-core { display: none; }
    .logo { flex: 1; display: flex; justify-content: center; }
    .logo img { max-height: 42px; }
    .register-btn { min-height: 38px; padding: 8px 16px; }
    .site-layout { padding: 16px 14px 0; display: block; }
    .section, .page-hero, .home-block { padding: 20px; border-radius: 18px; margin-bottom: 18px; }
    .hero-grid, .two-col { grid-template-columns: 1fr; gap: 18px; }
    .hero-media img, .media-box img { height: 210px; }
    .banner-slider { min-height: 150px; height: 190px; border-radius: 16px; margin-bottom: 18px; }
    .slider-arrow { width: 34px; height: 34px; font-size: 20px; }
    .slider-prev { left: 10px; }
    .slider-next { right: 10px; }
    .quick-grid, .stat-grid, .card-grid, .product-grid, .review-grid, .faq-grid, .notice-grid { grid-template-columns: 1fr; }
    .product-card img, .zone-card img, .info-card img, .quick-card img, .content-img { height: 150px; }
    .split-image { height: 190px; }
    .footer-inner { grid-template-columns: 1fr; padding: 32px 18px; }
    .mobile-bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; display: grid; grid-template-columns: repeat(4, 1fr); background: #FFFFFF; border-top: 1px solid #E4E7EC; z-index: 999; }
    .mobile-bottom-nav a { display: flex; align-items: center; justify-content: center; min-height: 58px; color: #5D6673; font-weight: 700; }
    .mobile-bottom-nav a.active { color: #C90000; }
}
@media (max-width: 480px) {
    h1 { font-size: 28px; }
    h2 { font-size: 22px; }
    .register-btn { padding: 7px 13px; }
    .banner-slider { height: 165px; }
}