*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;background:#F0F3FA;color:#1D2B36;line-height:1.75}
body.drawer-open{overflow:hidden}
a{color:#27A9E8;text-decoration:none;transition:.2s ease}
a:hover{color:#1597D8}
img{max-width:100%;height:auto;display:block}
.site-header{position:sticky;top:0;z-index:9999;background:#EAFBFF;backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(16,126,180,.14)}
.topbar{max-width:1240px;margin:0 auto;min-height:76px;display:flex;align-items:center;gap:18px;padding:0 22px}
.brand-logo{display:flex;align-items:center;flex:0 0 auto}
.brand-logo img{width:158px;height:auto}
.desktop-nav{display:flex;align-items:center;justify-content:center;gap:6px;flex:1}
.desktop-nav a{color:#167BB8;font-size:15px;font-weight:700;padding:11px 10px;border-radius:12px;white-space:nowrap}
.desktop-nav a.active,.desktop-nav a:hover{color:#27A9E8;background:linear-gradient(180deg,rgba(39,169,232,.14),rgba(39,169,232,.04));box-shadow:inset 0 -2px 0 #27A9E8,0 10px 22px rgba(39,169,232,.16)}
.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 24px;background:linear-gradient(180deg,#52C8FF 0%,#27A9E8 55%,#168BD0 100%);color:#FFFFFF;border-radius:999px;box-shadow:0 10px 24px rgba(39,169,232,.28);font-weight:800;border:0;letter-spacing:.04em}
.main-btn:hover{color:#FFFFFF;background:linear-gradient(180deg,#63D2FF 0%,#1597D8 100%);transform:translateY(-1px)}
.header-cta{flex:0 0 auto}
.menu-toggle{display:none;width:44px;height:44px;border:0;background:rgba(255,255,255,.68);border-radius:12px;align-items:center;justify-content:center;flex-direction:column;gap:5px;box-shadow:0 6px 18px rgba(16,126,180,.12)}
.menu-toggle span{width:22px;height:2px;background:#167BB8;border-radius:2px}
.mobile-drawer{position:fixed;left:0;top:0;bottom:0;width:84vw;max-width:320px;background:#F5FDFF;z-index:10001;transform:translateX(-105%);transition:transform .28s ease;box-shadow:18px 0 38px rgba(6,59,92,.18);padding:18px;overflow-y:auto}
.mobile-drawer.open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.42);z-index:10000;opacity:0;visibility:hidden;transition:.25s ease}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-logo img{width:144px}
.drawer-close{width:40px;height:40px;border:0;border-radius:12px;background:#EAFBFF;color:#167BB8;font-size:28px;line-height:1;cursor:pointer}
.drawer-links{display:grid;gap:8px}
.drawer-links a{color:#167BB8;font-weight:800;background:#FFFFFF;border:1px solid rgba(39,169,232,.16);border-radius:14px;padding:12px 14px}
.drawer-links a.active{color:#27A9E8;box-shadow:inset 0 -2px 0 #27A9E8}
.drawer-note{font-size:13px;color:#5D7280;background:#EAFBFF;border-radius:14px;margin-top:16px;padding:14px}
.page-main{max-width:1240px;margin:0 auto;padding:28px 22px 54px}
.hero-section{max-width:1200px;margin:28px auto 36px;border-radius:20px;background:rgba(255,255,255,.88);box-shadow:0 18px 40px rgba(16,126,180,.14);overflow:hidden;position:relative}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center;padding:52px}
.hero-copy h1,.inner-hero h1{font-size:clamp(32px,5vw,58px);line-height:1.16;margin:0 0 18px;color:#27A9E8}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#27A9E8;font-size:14px;font-weight:900;letter-spacing:.08em;background:rgba(39,169,232,.12);border:1px solid rgba(39,169,232,.18);border-radius:999px;padding:6px 14px;margin-bottom:14px}
.hero-copy .lead,.inner-hero .lead{font-size:18px;color:#5D7280;margin:0 0 18px}
.hero-copy p,.inner-hero p{color:#1D2B36;margin:0 0 22px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}
.hero-tags span,.tag{color:#27A9E8;font-weight:800;background:#EAFBFF;border:1px solid rgba(39,169,232,.20);border-radius:999px;padding:7px 13px;font-size:14px}
.hero-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.text-link{font-weight:800;color:#27A9E8}
.hero-media{background:#EAFBFF;border-radius:20px;padding:16px;border:1px solid rgba(39,169,232,.18)}
.hero-media img,.feature-media img,.inner-media img,.image-panel img{width:100%;height:auto;max-height:470px;object-fit:contain;margin:auto;border-radius:18px}
.section{margin:34px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:18px}
.section-title,h2,h3{color:#27A9E8}
.section-title{font-size:clamp(25px,3vw,36px);line-height:1.22;margin:0}
.section-desc{color:#5D7280;max-width:720px;margin:8px 0 0}
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card,.zone-card,.info-card,.review-card,.faq-card,.step-card,.notice-card{background:rgba(255,255,255,.88);border:1px solid rgba(39,169,232,.22);box-shadow:0 14px 36px rgba(16,126,180,.12);border-radius:18px;padding:24px}
.card h3,.zone-card h3,.info-card h3,.review-card h3,.faq-card h3,.step-card h3{margin:0 0 10px;color:#27A9E8;font-size:21px}
.card p,.zone-card p,.info-card p,.review-card p,.faq-card p,.step-card p{margin:0 0 14px;color:#1D2B36}
.muted{color:#5D7280}
.small{font-size:14px;color:#8194A0}
.number{display:inline-flex;width:34px;height:34px;border-radius:12px;align-items:center;justify-content:center;background:#EAFBFF;color:#27A9E8;font-weight:900;margin-bottom:12px}
.zone-card img,.card img{width:100%;height:auto;max-height:280px;object-fit:contain;border-radius:16px;background:#F5FDFF;margin:0 auto 16px}
.feature-panel,.inner-panel{background:rgba(255,255,255,.88);border:1px solid rgba(39,169,232,.22);border-radius:22px;box-shadow:0 14px 36px rgba(16,126,180,.12);padding:30px}
.feature-grid,.inner-grid{display:grid;grid-template-columns:1fr .9fr;gap:26px;align-items:center}
.keyword-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.keyword-row span{background:#C8F0FF;color:#167BB8;border-radius:999px;padding:7px 13px;font-weight:800;font-size:14px}
.steps{counter-reset:item}
.step-card{position:relative}
.review-card{display:flex;flex-direction:column;gap:10px}
.review-card strong{color:#27A9E8}
.app-highlight{background:linear-gradient(135deg,#FFFFFF 0%,#EAFBFF 100%);border-radius:22px;padding:30px;border:1px solid rgba(39,169,232,.22);box-shadow:0 14px 36px rgba(16,126,180,.12)}
.notice-card{background:#F5FDFF}
.notice-card ul{margin:0;padding-left:20px;color:#1D2B36}
.notice-card li{margin:6px 0}
.inner-hero{display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:center;background:rgba(255,255,255,.88);border:1px solid rgba(39,169,232,.22);border-radius:22px;box-shadow:0 18px 40px rgba(16,126,180,.14);padding:42px;margin:28px 0 34px}
.inner-content{display:grid;grid-template-columns:2fr 1fr;gap:22px}
.article{background:rgba(255,255,255,.88);border:1px solid rgba(39,169,232,.22);box-shadow:0 14px 36px rgba(16,126,180,.12);border-radius:20px;padding:30px}
.article p{margin:0 0 16px}
.article h2{font-size:28px;margin:8px 0 14px}
.article h3{font-size:22px;margin:22px 0 10px}
.side-stack{display:grid;gap:18px;align-content:start}
.list-clean{padding-left:20px;margin:0;color:#1D2B36}
.list-clean li{margin:8px 0}
.faq-list{display:grid;gap:16px}
.faq-item{background:rgba(255,255,255,.88);border:1px solid rgba(39,169,232,.22);border-radius:18px;padding:22px;box-shadow:0 12px 30px rgba(16,126,180,.10)}
.faq-item h3{font-size:20px;margin:0 0 8px}
.footer-note{margin-top:28px}
.site-footer{background:#063B5C;color:#EAFBFF;margin-top:26px}
.footer-inner{max-width:1240px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px;padding:42px 22px}
.footer-brand img{width:156px;background:rgba(255,255,255,.92);border-radius:16px;padding:6px;margin-bottom:12px}
.footer-brand p,.footer-bottom p{color:#EAFBFF;margin:0}
.footer-col h3{color:#EAFBFF;margin:0 0 10px;font-size:18px}
.footer-col a{display:block;color:#EAFBFF;opacity:.92;margin:8px 0}
.footer-col a:hover{opacity:1;color:#FFFFFF}
.footer-bottom{max-width:1240px;margin:0 auto;padding:18px 22px 28px;border-top:1px solid rgba(234,251,255,.18);display:grid;gap:8px;font-size:14px;color:#EAFBFF}
@media (max-width:1100px){
    .desktop-nav{gap:2px}
    .desktop-nav a{font-size:14px;padding:10px 7px}
}
@media (max-width:960px){
    .topbar{justify-content:space-between;min-height:66px}
    .menu-toggle{display:flex}
    .desktop-nav{display:none}
    .brand-logo{position:absolute;left:50%;transform:translateX(-50%)}
    .brand-logo img{width:132px}
    .header-cta{padding:0 18px;min-height:38px}
    .page-main{padding:18px 16px 42px}
    .hero-grid,.inner-hero,.feature-grid,.inner-grid,.inner-content{grid-template-columns:1fr}
    .hero-grid{padding:30px}
    .inner-hero{padding:28px}
    .grid-4,.grid-3,.grid-2{grid-template-columns:1fr 1fr}
    .footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:620px){
    .topbar{padding:0 12px}
    .hero-grid{padding:22px}
    .hero-section{margin:18px auto 24px;border-radius:18px}
    .grid-4,.grid-3,.grid-2{grid-template-columns:1fr}
    .section-head{display:block}
    .card,.zone-card,.info-card,.review-card,.faq-card,.step-card,.notice-card,.article,.feature-panel,.app-highlight{padding:20px}
    .inner-hero{padding:22px}
    .footer-inner{grid-template-columns:1fr;padding:34px 18px}
}