* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif; background: #FFFFFF; color: #252B3A; line-height: 1.75; padding-top: 124px; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.site-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: rgba(255,255,255,0.96); border-bottom: 1px solid rgba(49,92,255,0.12); backdrop-filter: blur(10px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 74px; }
.logo img { max-height: 52px; width: auto; display: block; object-fit: contain; }
.nav-core { display: flex; align-items: center; gap: 24px; white-space: nowrap; flex-wrap: nowrap; }
.nav-core a { color: #252B3A; position: relative; font-weight: 700; font-size: 15px; }
.nav-core a:hover, .nav-core a.active { color: #315CFF; }
.nav-core a.active::after { content: ""; position: absolute; left: 50%; bottom: -20px; width: 28px; height: 3px; border-radius: 999px; background: #315CFF; transform: translateX(-50%); }
.register-btn, .main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 0 24px; background: linear-gradient(135deg, #315CFF 0%, #5F7DFF 52%, #8CA5FF 100%); color: #FFFFFF; border-radius: 999px; font-weight: 800; box-shadow: 0 12px 26px rgba(49,92,255,0.22); border: none; cursor: pointer; }
.register-btn:hover, .main-btn:hover { transform: translateY(-1px); box-shadow: 0 15px 32px rgba(49,92,255,0.28); }
.channel-bar { background: #F5F7FB; border-bottom: 1px solid rgba(49,92,255,0.10); }
.channel-scroll { display: flex; align-items: center; gap: 8px; overflow-x: auto; scrollbar-width: none; padding: 10px 0; }
.channel-scroll::-webkit-scrollbar { display: none; }
.channel-bar a { display: inline-flex; align-items: center; color: #5F6B82; padding: 8px 14px; border-radius: 999px; font-size: 14px; white-space: nowrap; }
.channel-bar a:hover, .channel-bar a.active { color: #315CFF; background: rgba(49,92,255,0.10); }
.menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid rgba(49,92,255,0.16); background: #FFFFFF; border-radius: 12px; align-items: center; justify-content: center; flex-direction: column; gap: 5px; }
.menu-toggle span { width: 20px; height: 2px; background: #315CFF; border-radius: 99px; }
.site-main { min-height: 60vh; }
.section { padding: 54px 0; }
.section-soft { background: #F5F7FB; }
.section-blue { background: #EEF4FF; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 24px; }
h1, h2, h3, .section-title { color: #17213A; margin: 0 0 12px; line-height: 1.25; }
h1 { font-size: clamp(34px, 6vw, 58px); letter-spacing: -1px; }
h2, .section-title { font-size: clamp(26px, 3.5vw, 38px); }
h3 { font-size: 20px; }
p { margin: 0 0 14px; color: #5F6B82; }
.lead { font-size: 18px; color: #252B3A; max-width: 780px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: #315CFF; background: rgba(49,92,255,0.10); padding: 6px 12px; border-radius: 999px; font-weight: 800; font-size: 13px; margin-bottom: 14px; }
.hero-page { padding: 58px 0 36px; background: linear-gradient(180deg, #EEF4FF 0%, #FFFFFF 100%); }
.hero-grid { display: grid; grid-template-columns: minmax(0,1.08fr) minmax(320px,.92fr); gap: 34px; align-items: center; }
.hero-card { background: #FFFFFF; border: 1px solid rgba(49,92,255,0.14); box-shadow: 0 14px 34px rgba(31,45,85,0.08); border-radius: 26px; padding: 28px; }
.hero-card img { width: 100%; max-height: 300px; object-fit: contain; background: #F5F7FB; border-radius: 20px; }
.banner-slider { max-width: 1180px; margin: 24px auto 34px; border-radius: 22px; background: #F5F7FB; box-shadow: 0 14px 34px rgba(31,45,85,0.08); overflow: hidden; position: relative; height: clamp(260px, 32vw, 360px); }
.slider-track { height: 100%; position: relative; }
.slide { position: absolute; inset: 0; opacity: 0; transition: opacity .45s ease; }
.slide.active { opacity: 1; z-index: 1; }
.banner-slider img { width: 100%; height: 100%; object-fit: contain; background: #F5F7FB; }
.slider-arrow { position: absolute; top: 50%; transform: translateY(-50%); z-index: 3; width: 42px; height: 42px; border-radius: 50%; border: none; background: rgba(255,255,255,0.86); color: #315CFF; box-shadow: 0 8px 18px rgba(31,45,85,0.16); font-size: 24px; cursor: pointer; }
.slider-prev { left: 16px; }
.slider-next { right: 16px; }
.slider-dots { position: absolute; left: 0; right: 0; bottom: 14px; z-index: 4; display: flex; justify-content: center; gap: 8px; }
.slider-dot { width: 9px; height: 9px; border-radius: 99px; border: none; background: rgba(49,92,255,0.28); cursor: pointer; padding: 0; }
.slider-dot.active { width: 26px; background: #315CFF; }
.banner-caption, .banner-text, .slide-title, .slide-desc, .slide-content, .slide-card, .banner-card { display: none !important; }
.intro-split { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(280px, .9fr); gap: 28px; align-items: center; }
.card, .zone-card, .info-card, .review-card, .faq-card, .notice-card { background: #FFFFFF; border: 1px solid rgba(49,92,255,0.14); box-shadow: 0 14px 34px rgba(31,45,85,0.08); border-radius: 18px; }
.card, .info-card, .review-card, .faq-card, .notice-card { padding: 24px; }
.zone-card { padding: 18px; overflow: hidden; }
.zone-card img, .info-card img, .content-img { max-width: 100%; height: auto; max-height: 230px; object-fit: contain; margin: 0 auto 16px; border-radius: 16px; background: #F5F7FB; }
.product-card img { width: 100%; height: 160px; object-fit: contain; background: #F5F7FB; border-radius: 16px; margin-bottom: 16px; }
.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: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.news-list { display: grid; gap: 14px; }
.news-item { display: grid; grid-template-columns: 112px 1fr; gap: 18px; align-items: start; padding: 18px; background: #FFFFFF; border: 1px solid rgba(49,92,255,0.14); border-radius: 18px; }
.news-date { text-align: center; padding: 12px 8px; border-radius: 16px; background: #EEF4FF; color: #315CFF; font-weight: 900; }
.advantage-strip { display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; overflow: hidden; border-radius: 22px; border: 1px solid rgba(49,92,255,0.14); box-shadow: 0 14px 34px rgba(31,45,85,0.08); background: rgba(49,92,255,0.14); }
.advantage-strip div { background: #FFFFFF; padding: 24px; }
.advantage-strip strong { display: block; color: #17213A; margin-bottom: 8px; font-size: 18px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.tag-list span { color: #315CFF; background: rgba(49,92,255,0.10); padding: 7px 12px; border-radius: 999px; font-weight: 700; font-size: 13px; }
.matrix-card { min-height: 100%; display: flex; flex-direction: column; }
.matrix-card .main-btn { align-self: flex-start; margin-top: auto; }
.list-check { padding-left: 0; list-style: none; margin: 16px 0 0; }
.list-check li { position: relative; padding-left: 28px; margin-bottom: 10px; color: #5F6B82; }
.list-check li::before { content: ""; position: absolute; left: 0; top: 10px; width: 10px; height: 10px; border-radius: 50%; background: #315CFF; box-shadow: 0 0 0 5px rgba(49,92,255,0.12); }
.review-card { display: flex; flex-direction: column; gap: 12px; }
.review-card strong { color: #17213A; }
.faq-card h3 { cursor: default; }
.cta-band { display: flex; align-items: center; justify-content: space-between; gap: 22px; padding: 30px; border-radius: 24px; background: linear-gradient(135deg, #EEF4FF 0%, #FFFFFF 100%); border: 1px solid rgba(49,92,255,0.14); }
.site-footer { background: #101828; color: #D8E0F2; padding: 54px 0 0; }
.site-footer p { color: #D8E0F2; opacity: .86; }
.footer-grid { display: grid; grid-template-columns: 1.6fr .8fr .8fr 1fr; gap: 34px; }
.site-footer h3 { color: #FFFFFF; font-size: 17px; }
.site-footer a { display: block; color: #D8E0F2; margin: 8px 0; opacity: .88; }
.site-footer a:hover { color: #FFFFFF; opacity: 1; }
footer .logo img { max-height: 48px; margin-bottom: 16px; }
.footer-bottom { border-top: 1px solid rgba(216,224,242,0.15); margin-top: 32px; padding: 18px 0 22px; color: #D8E0F2; opacity: .72; font-size: 14px; }
.drawer-mask { position: fixed; inset: 0; background: rgba(16,24,40,0.45); z-index: 1200; opacity: 0; pointer-events: none; transition: .25s ease; }
.mobile-drawer { position: fixed; top: 0; left: 0; width: 84vw; max-width: 320px; height: 100vh; background: #FFFFFF; z-index: 1201; transform: translateX(-105%); transition: .25s ease; box-shadow: 0 18px 40px rgba(16,24,40,0.18); overflow-y: auto; }
.drawer-open { overflow-x: hidden; }
.drawer-open .drawer-mask { opacity: 1; pointer-events: auto; }
.drawer-open .mobile-drawer { transform: translateX(0); }
.drawer-head { min-height: 72px; display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; border-bottom: 1px solid rgba(49,92,255,0.12); }
.drawer-close { width: 38px; height: 38px; border-radius: 50%; border: 1px solid rgba(49,92,255,0.16); background: #F5F7FB; color: #315CFF; font-size: 26px; line-height: 1; }
.drawer-nav { display: grid; gap: 4px; padding: 16px; }
.drawer-nav a { padding: 12px 14px; border-radius: 14px; color: #252B3A; font-weight: 700; }
.drawer-nav a.active, .drawer-nav a:hover { color: #315CFF; background: rgba(49,92,255,0.10); }
.mobile-bottom-nav { display: none; }
.registration-page { min-height: 70vh; display: grid; place-items: center; padding: 80px 0; }
@media (max-width: 980px) {
    body { padding-top: 74px; padding-bottom: 70px; }
    .header-inner { min-height: 74px; gap: 12px; }
    .menu-toggle { display: inline-flex; }
    .nav-core, .channel-bar { display: none; }
    .header-inner .logo { position: absolute; left: 50%; transform: translateX(-50%); }
    .header-inner .logo img { max-height: 44px; }
    .header-register { padding: 0 18px; min-height: 40px; }
    .hero-grid, .intro-split { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .grid-3 { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .advantage-strip { grid-template-columns: repeat(2,1fr); }
    .footer-grid { grid-template-columns: repeat(2,1fr); }
    .mobile-bottom-nav { display: grid; grid-template-columns: repeat(4,1fr); position: fixed; left: 0; right: 0; bottom: 0; z-index: 999; background: #FFFFFF; border-top: 1px solid #E6EAF2; box-shadow: 0 -10px 24px rgba(31,45,85,0.08); }
    .mobile-bottom-nav a { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 58px; color: #5F6B82; font-size: 12px; font-weight: 700; }
    .mobile-bottom-nav a span { font-size: 18px; line-height: 1; margin-bottom: 2px; }
    .mobile-bottom-nav a.active { color: #315CFF; }
}
@media (max-width: 640px) {
    .container { width: min(100% - 24px, 1180px); }
    .section { padding: 38px 0; }
    .hero-page { padding: 38px 0 24px; }
    .banner-slider { margin: 14px auto 24px; height: clamp(150px, 52vw, 210px); border-radius: 16px; }
    .slider-arrow { width: 34px; height: 34px; font-size: 20px; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .advantage-strip { grid-template-columns: 1fr; }
    .news-item { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .cta-band, .section-head { flex-direction: column; align-items: flex-start; }
    .product-card img { height: 145px; }
    .zone-card img, .info-card img, .content-img { max-height: 210px; }
}