:root{
  --bg:#E6EBF2;
  --soft:#F5F7FB;
  --white:#FFFFFF;
  --line:rgba(40,156,255,0.16);
  --title:#289CFF;
  --text:#243447;
  --muted:#66788A;
  --deep:#243447;
  --shadow:0 14px 36px rgba(56,92,138,0.10);
  --grad:linear-gradient(180deg,#32D1F6 0%,#27B9F4 35%,#249BFF 100%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.72;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.90);backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(56,92,138,.10)}
.header-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px;padding:0 22px}
.logo{display:inline-flex;align-items:center;flex-shrink:0}.logo img{max-height:52px;width:auto;display:block}.site-footer .logo img{max-height:46px}
.nav-core{display:flex;justify-content:center;gap:24px;white-space:nowrap;flex-wrap:nowrap;align-items:center;min-width:0}.nav-core a{color:#4E5F7A;position:relative;font-weight:700;padding:10px 4px;border-radius:999px}.nav-core a:hover,.nav-core a.active{color:var(--title)}.nav-core a.active:after{content:"";position:absolute;left:50%;bottom:-12px;width:28px;height:3px;border-radius:999px;background:var(--title);transform:translateX(-50%)}
.nav-register,.main-btn{display:inline-flex;align-items:center;justify-content:center;background:var(--grad);color:#fff!important;border-radius:999px;font-weight:800;box-shadow:0 12px 24px rgba(36,155,255,.22);border:0;white-space:nowrap}.nav-register{min-width:88px;height:40px;padding:0 22px}.main-btn{min-height:44px;padding:0 26px;margin-top:12px}
.mobile-topbar{display:none}.menu-toggle,.drawer-close{appearance:none;border:0;background:transparent}.menu-toggle{width:42px;height:42px;border-radius:14px;background:#fff;border:1px solid var(--line);display:inline-flex;flex-direction:column;gap:5px;align-items:center;justify-content:center}.menu-toggle span{display:block;width:20px;height:2px;background:var(--title);border-radius:5px}
.drawer-mask{position:fixed;inset:0;background:rgba(14,30,46,.42);opacity:0;pointer-events:none;transition:.25s;z-index:9998}.mobile-drawer{position:fixed;top:0;left:0;width:84vw;max-width:320px;height:100vh;z-index:10000;background:#fff;box-shadow:18px 0 34px rgba(36,52,71,.20);transform:translateX(-104%);transition:.28s ease;padding:18px;overflow-y:auto}.drawer-open .mobile-drawer{transform:translateX(0)}.drawer-open .drawer-mask{opacity:1;pointer-events:auto}.drawer-open{overflow:hidden}.drawer-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(40,156,255,.14);padding-bottom:14px}.drawer-close{font-size:30px;color:var(--title);line-height:1}.drawer-links{display:grid;gap:8px;padding:16px 0 26px}.drawer-links a{padding:11px 14px;border-radius:14px;color:var(--muted);font-weight:700;background:#F7FAFF}.drawer-links a.active,.drawer-links a:hover{color:var(--title);background:rgba(40,156,255,.10)}
.page-frame{max-width:1440px;margin:0 auto;padding:104px 24px 0;display:grid;grid-template-columns:210px minmax(0,1fr);gap:24px;align-items:start}.main-area{min-width:0;width:100%;max-width:1200px;margin:0 auto}.side-channel{position:sticky;top:110px;background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:14px;display:grid;gap:6px}.side-channel strong{padding:8px 10px;color:var(--title);font-size:15px}.side-channel a{color:var(--muted);border-radius:12px;padding:9px 10px;font-weight:700;font-size:14px}.side-channel a:hover,.side-channel a.active{color:var(--title);background:rgba(40,156,255,.10)}
.floating-service{position:fixed;right:18px;top:42%;z-index:60;display:grid;gap:9px}.floating-service a,.floating-service button{background:#fff;color:var(--title);border:1px solid var(--line);box-shadow:0 14px 30px rgba(56,92,138,.12);border-radius:15px;padding:10px 13px;min-width:56px;font-weight:800;text-align:center;font-family:inherit;cursor:pointer}.floating-service a.register-link{background:var(--grad);color:#fff;border:0}.mobile-bottom-nav{display:none}
.banner-slider{max-width:1200px;margin:0 auto 34px;border-radius:24px;background:#fff;box-shadow:0 18px 40px rgba(56,92,138,.12);overflow:hidden;position:relative;z-index:1;height:360px}.banner-slider .slide{display:none;width:100%;height:100%}.banner-slider .slide.active{display:block}.banner-slider img{width:100%;height:100%;object-fit:contain;background:#fff}.banner-caption,.banner-text,.slide-title,.slide-desc,.slide-content,.slide-card,.banner-card{display:none!important}.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;border:none;border-radius:999px;background:rgba(255,255,255,.86);color:var(--title);box-shadow:0 8px 20px rgba(56,92,138,.16);width:42px;height:42px;font-size:28px;line-height:1;cursor:pointer}.slider-arrow.prev{left:16px}.slider-arrow.next{right:16px}.slider-dots{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;gap:8px;z-index:3}.slider-dots button{width:9px;height:9px;border-radius:50%;border:none;background:rgba(40,156,255,.24);padding:0;cursor:pointer}.slider-dots button.active{background:var(--title)}
.section{margin-bottom:28px}.hero-panel,.card,.zone-card,.info-card,.review-card,.faq-item,.notice-band,.feature-card,.page-hero{background:rgba(255,255,255,.92);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:22px}.page-hero{padding:34px;margin-bottom:28px;background:linear-gradient(135deg,rgba(255,255,255,.96),rgba(238,246,255,.92))}.eyebrow{margin:0 0 8px;color:var(--muted);font-weight:800;letter-spacing:.08em;font-size:13px}.page-hero h1,.hero-panel h1{margin:0 0 14px;font-size:34px;line-height:1.25;color:var(--title)}.page-hero p,.hero-panel p{margin:0 0 10px;color:#52677d}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin:0 0 16px}.section-title,h1,h2,h3{color:var(--title)}.section-title{font-size:26px;margin:0}.section-desc{margin:0;color:var(--muted);max-width:680px}.hero-panel{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center;padding:30px}.content-img{width:100%;height:260px;object-fit:contain;background:#fff;border-radius:18px;border:1px solid rgba(40,156,255,.10)}
.quick-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}.quick-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 10px 24px rgba(56,92,138,.08)}.quick-card h3{margin:0 0 8px;font-size:18px}.quick-card p{margin:0 0 10px;color:var(--muted);font-size:14px}.text-link{color:var(--title);font-weight:800}.three-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.two-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.matrix-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card,.info-card,.feature-card{padding:22px}.card h3,.info-card h3,.feature-card h3{margin:0 0 10px}.card p,.info-card p,.feature-card p{margin:0;color:#52677d}.zone-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.zone-card{overflow:hidden}.zone-card img{width:100%;height:160px;object-fit:contain;background:#fff}.zone-card .zone-body{padding:18px}.zone-card h3{margin:0 0 8px}.zone-card p{margin:0;color:#52677d}.app-section{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.app-section .info-card{display:grid;grid-template-columns:150px 1fr;gap:18px;align-items:center}.app-section img{height:150px;width:100%;object-fit:contain;background:#fff;border-radius:16px}.review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.review-card{padding:20px}.review-card p{margin:0;color:#52677d}.review-card strong{display:block;margin-top:12px;color:var(--title)}.faq-list{display:grid;gap:14px}.faq-item{padding:20px}.faq-item h3{margin:0 0 8px;font-size:18px}.faq-item p{margin:0;color:#52677d}.notice-band{padding:22px;background:linear-gradient(135deg,#fff,#F2F8FF)}.notice-band p{margin:0;color:#52677d}.media-card{display:grid;grid-template-columns:280px 1fr;gap:24px;align-items:center;padding:24px}.media-card img{height:240px;width:100%;object-fit:contain;background:#fff;border-radius:18px}.bullet-list{margin:12px 0 0;padding-left:20px;color:#52677d}.bullet-list li{margin:6px 0}.site-footer{background:var(--deep);color:#EAF3FF;margin-top:34px}.footer-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.1fr .9fr;gap:30px;padding:34px 24px}.footer-brand p{margin:14px 0 0;color:#D5E6F8}.footer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;align-content:start}.footer-links a{color:#EAF3FF;background:rgba(255,255,255,.08);border-radius:12px;padding:10px 12px}.footer-note{text-align:center;border-top:1px solid rgba(255,255,255,.12);padding:14px 24px;color:#D5E6F8;font-size:14px}.form-card{padding:24px}.contact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
@media (max-width:1180px){.page-frame{grid-template-columns:1fr;max-width:1200px}.side-channel,.floating-service{display:none}.quick-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:860px){body{padding-bottom:72px}.site-header{background:rgba(255,255,255,.94)}.header-inner{display:none}.mobile-topbar{display:flex;align-items:center;justify-content:space-between;min-height:64px;padding:0 14px}.mobile-logo img{max-height:44px}.nav-register{min-width:74px;height:38px;padding:0 16px}.page-frame{padding:82px 14px 0}.banner-slider{height:220px;border-radius:18px;margin-bottom:22px}.slider-arrow{width:36px;height:36px;font-size:24px}.hero-panel,.page-hero{padding:22px}.hero-panel,.media-card,.footer-inner,.app-section,.app-section .info-card{grid-template-columns:1fr}.page-hero h1,.hero-panel h1{font-size:27px}.quick-grid,.three-grid,.two-grid,.matrix-grid,.zone-row,.review-grid,.contact-grid{grid-template-columns:1fr}.content-img,.media-card img{height:220px}.mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:900;display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);box-shadow:0 -8px 24px rgba(56,92,138,.12);padding:8px 8px calc(8px + env(safe-area-inset-bottom))}.mobile-bottom-nav a{display:flex;align-items:center;justify-content:center;border-radius:14px;min-height:44px;color:var(--muted);font-weight:800}.mobile-bottom-nav a.active{background:rgba(40,156,255,.10);color:var(--title)}.footer-links{grid-template-columns:1fr}.app-section img{height:180px}}
@media (max-width:480px){.banner-slider{height:190px}.quick-card,.card,.info-card,.feature-card,.review-card,.faq-item{padding:18px}.section-title{font-size:22px}.page-hero h1,.hero-panel h1{font-size:24px}.content-img{height:190px}.zone-card img{height:145px}}