:root{
    --body:#E6EBF2;
    --nav-bg:#F5F7FB;
    --white:#FFFFFF;
    --soft:#EEF2F7;
    --soft-2:#DDE4EE;
    --blue:#289CFF;
    --nav-text:#4E5F7A;
    --text:#243447;
    --muted:#66788A;
    --light:#8A9AAF;
    --footer:#243447;
    --footer-text:#EAF3FF;
    --btn:linear-gradient(180deg,#32D1F6 0%,#27B9F4 35%,#249BFF 100%);
    --shadow:0 14px 36px rgba(56,92,138,0.12);
    --border:rgba(40,156,255,0.16);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--body);color:var(--text);font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.site-header{position:sticky;top:0;z-index:9999;background:var(--nav-bg);backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(56,92,138,0.10)}
.header-inner{max-width:1240px;margin:0 auto;padding:0 22px;display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}
.logo{flex:0 0 auto;display:flex;align-items:center;min-width:112px}
.logo img{max-height:52px;width:auto}
.nav-wrap{flex:1 1 auto;min-width:0;display:flex;justify-content:center}
.nav{display:flex;align-items:center;gap:14px;white-space:nowrap;flex-wrap:nowrap}
.nav-link{position:relative;border:0;background:transparent;color:var(--nav-text);font:inherit;font-weight:700;padding:24px 4px 20px;cursor:pointer}
.nav-link:hover,.nav-link.active{color:var(--blue)}
.nav-link.active:after{content:"";position:absolute;left:8px;right:8px;bottom:13px;height:3px;border-radius:999px;background:var(--blue);box-shadow:0 0 14px rgba(40,156,255,0.35)}
.header-action{flex:0 0 auto;display:flex;align-items:center}
.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 24px;border-radius:999px;background:var(--btn);color:#fff;font-weight:800;box-shadow:0 10px 24px rgba(36,155,255,0.25);transition:.2s ease;border:0;white-space:nowrap}
.main-btn:hover{background:linear-gradient(180deg,#48D9F7 0%,#1E90F0 100%);transform:translateY(-1px)}
.dropdown,.more-dropdown{position:relative}
.dropdown-menu,.more-menu{position:absolute;top:100%;left:0;min-width:180px;background:#fff;border:1px solid rgba(40,156,255,0.12);border-radius:14px;box-shadow:0 18px 38px rgba(56,92,138,0.16);z-index:10000;padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.18s ease}
.dropdown:hover .dropdown-menu,.dropdown:focus-within .dropdown-menu,.more-dropdown:hover .more-menu,.more-dropdown:focus-within .more-menu{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-menu a,.more-menu a{display:block;padding:10px 14px;color:var(--nav-text);white-space:nowrap;border-radius:10px;font-weight:700}
.dropdown-menu a:hover,.more-menu a:hover{color:var(--blue);background:rgba(40,156,255,0.08)}
.menu-toggle{display:none;border:0;background:transparent;width:42px;height:42px;border-radius:12px;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer}
.menu-toggle span{width:22px;height:2px;background:var(--nav-text);border-radius:9px}
.site-main{padding-top:0}
.container,.section-wrap,.page-hero,.split-section{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:22px;padding-right:22px}
.banner-slider{max-width:1200px;height:clamp(230px,43vw,520px);margin:28px auto 36px;border-radius:20px;background:#fff;box-shadow:0 18px 40px rgba(56,92,138,0.12);overflow:hidden;position:relative;z-index:1}
.slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .45s ease;display:flex;align-items:center;justify-content:center;background:#fff}
.slide.is-active{opacity:1;visibility:visible}
.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%);width:44px;height:44px;border-radius:999px;border:1px solid rgba(40,156,255,0.18);background:rgba(255,255,255,0.82);color:var(--blue);font-size:26px;line-height:1;cursor:pointer;z-index:3;box-shadow:0 10px 22px rgba(56,92,138,0.12)}
.slider-prev{left:18px}.slider-next{right:18px}
.slider-dots{position:absolute;left:0;right:0;bottom:16px;display:flex;justify-content:center;gap:10px;z-index:3}
.slider-dot{width:11px;height:11px;border-radius:999px;border:1px solid rgba(40,156,255,0.42);background:rgba(255,255,255,0.78);cursor:pointer;padding:0}
.slider-dot.is-active{width:28px;background:var(--blue);border-color:var(--blue)}
.section-wrap{margin-top:42px;margin-bottom:42px}
.section-head{max-width:760px;margin-bottom:22px}
.eyebrow{display:inline-flex;align-items:center;color:var(--blue);font-weight:800;letter-spacing:.04em;margin-bottom:8px}
h1,h2,h3,.section-title{color:var(--blue);line-height:1.25;margin:0 0 12px}
h1{font-size:clamp(32px,5vw,56px)}
h2{font-size:clamp(25px,3vw,36px)}
h3{font-size:20px}
p{margin:0 0 14px;color:var(--muted)}
.welcome-card,.card,.zone-card,.info-card,.review-card,.split-card,.faq-item,.notice-panel{background:rgba(255,255,255,0.92);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:22px}
.welcome-card{max-width:1200px;margin:0 auto 42px;padding:32px;display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:center}
.welcome-card img{border-radius:18px;background:#fff;object-fit:contain;width:100%}
.mini-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.info-card{padding:22px;min-height:210px;display:flex;flex-direction:column;justify-content:space-between}
.text-link{display:inline-flex;margin-top:8px;color:var(--blue);font-weight:800}
.text-link:after{content:"→";margin-left:5px}
.media-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.zone-card{padding:18px;overflow:hidden}
.zone-card img{width:100%;height:190px;object-fit:contain;background:#fff;border-radius:16px;margin-bottom:16px}
.app-showcase{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:center;background:rgba(255,255,255,0.92);border:1px solid var(--border);border-radius:24px;box-shadow:var(--shadow);padding:28px}
.app-showcase img{width:100%;max-height:360px;object-fit:contain;background:#fff;border-radius:18px}
.feature-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:18px}
.feature-list li{list-style:none;background:#EEF2F7;border-radius:16px;padding:14px;color:var(--text);font-weight:700}
.feature-list ul{padding:0;margin:0}
.split-section{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:42px;margin-bottom:42px}
.split-card{padding:28px}
.soft-card{background:#EEF2F7}
.review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.review-card{padding:22px;margin:0}
.review-card cite{display:block;margin-top:10px;color:var(--blue);font-style:normal;font-weight:800}
.faq-list{display:grid;gap:14px}
.faq-item{padding:0;overflow:hidden}
.faq-item summary{cursor:pointer;padding:18px 22px;color:var(--text);font-weight:800;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item p{padding:0 22px 18px}
.notice-panel{max-width:1200px;margin:42px auto;padding:26px;background:#DDE4EE}
.notice-panel strong{color:var(--blue)}
.page-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center;margin-top:34px;margin-bottom:40px}
.page-hero-text{background:rgba(255,255,255,0.92);border:1px solid var(--border);border-radius:24px;box-shadow:var(--shadow);padding:34px}
.page-hero-media{background:#fff;border:1px solid var(--border);border-radius:24px;box-shadow:var(--shadow);padding:18px}
.content-img{width:100%;max-height:420px;object-fit:contain;background:#fff;border-radius:18px}
.compact-section{margin-top:32px}
.site-footer{margin-top:56px;background:var(--footer);color:var(--footer-text)}
.footer-inner{max-width:1200px;margin:0 auto;padding:42px 22px;display:grid;grid-template-columns:1fr 1.4fr;gap:38px}
.footer-brand img{max-height:54px;width:auto;margin-bottom:16px}
.footer-brand p,.footer-notice p{color:var(--footer-text)}
.footer-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.footer-links h3{color:#fff;font-size:18px}
.footer-links a{display:block;color:var(--footer-text);margin:8px 0;opacity:.9}
.footer-links a:hover{color:#fff;opacity:1}
.footer-notice{max-width:1200px;margin:0 auto;padding:18px 22px 28px;border-top:1px solid rgba(234,243,255,.16)}
.drawer-mask{position:fixed;inset:0;background:rgba(36,52,71,.35);z-index:10001;opacity:0;visibility:hidden;transition:.2s ease}
.mobile-drawer{position:fixed;left:0;top:0;height:100vh;width:84%;max-width:320px;background:#fff;z-index:10002;transform:translateX(-105%);transition:.25s ease;box-shadow:18px 0 40px rgba(36,52,71,.22);overflow-y:auto}
.drawer-open .drawer-mask{opacity:1;visibility:visible}
.drawer-open .mobile-drawer{transform:translateX(0)}
.drawer-open{overflow:hidden}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px;border-bottom:1px solid rgba(40,156,255,.12)}
.drawer-logo img{max-height:48px}
.drawer-close{border:0;background:#EEF2F7;color:var(--nav-text);width:38px;height:38px;border-radius:12px;font-size:28px;line-height:1;cursor:pointer}
.drawer-nav{display:grid;padding:12px}
.drawer-nav a{padding:13px 14px;border-radius:12px;color:var(--nav-text);font-weight:800}
.drawer-nav a:hover,.drawer-nav a.active{background:rgba(40,156,255,.08);color:var(--blue)}
@media (max-width:1100px){
    .nav{gap:10px}.nav-link{font-size:14px}.header-inner{gap:14px}.main-btn{padding:0 18px}
}
@media (max-width:980px){
    .header-inner{min-height:66px;display:grid;grid-template-columns:48px 1fr auto;padding:0 14px;gap:12px}
    .menu-toggle{display:flex}
    .nav-wrap{display:none}
    .logo{justify-content:center;min-width:0}.logo img{max-height:46px}
    .banner-slider{margin:18px 14px 28px;height:clamp(190px,54vw,380px);border-radius:16px}
    .welcome-card,.app-showcase,.page-hero,.split-section,.footer-inner{grid-template-columns:1fr}
    .mini-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .media-grid{grid-template-columns:1fr 1fr}
    .review-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
    .header-action .main-btn{min-height:38px;padding:0 16px}
    .container,.section-wrap,.page-hero,.split-section{padding-left:14px;padding-right:14px}
    .welcome-card,.page-hero-text,.split-card,.app-showcase{padding:22px;border-radius:20px}
    .mini-grid,.media-grid,.review-grid,.feature-list{grid-template-columns:1fr}
    .slider-arrow{width:38px;height:38px;font-size:22px}.slider-prev{left:10px}.slider-next{right:10px}
    .footer-links{grid-template-columns:1fr}
    h1{font-size:32px}
}