*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#F5F8FC;color:#263748;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75;overflow-x:hidden}body.drawer-open{overflow:hidden}a{color:#2563EB;text-decoration:none}a:hover{text-decoration:none}img{max-width:100%;height:auto;display:block}.site-header{position:sticky;top:0;width:100%;z-index:9999;background:rgba(10,24,42,.94);backdrop-filter:blur(16px);box-shadow:0 8px 28px rgba(10,35,60,.12);border-bottom:1px solid rgba(255,255,255,.08)}.header-inner{max-width:1280px;margin:0 auto;min-height:72px;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:18px}.site-logo{display:flex;align-items:center;gap:10px;color:#fff;white-space:nowrap}.site-logo img{max-height:44px;width:auto;object-fit:contain}.site-logo strong{font-size:20px;letter-spacing:.02em}.nav-core{display:flex;align-items:center;gap:8px}.nav-core a{color:#DCEAF7;padding:8px 12px;border-radius:999px;font-size:15px;white-space:nowrap}.nav-core a:hover,.nav-core a.active{color:#fff;background:rgba(56,189,248,.14)}.header-actions{display:flex;align-items:center;gap:10px}.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 22px;border-radius:999px;background:linear-gradient(135deg,#2563EB 0%,#3B82F6 48%,#22D3C5 100%);color:#fff;font-weight:700;box-shadow:0 14px 32px rgba(37,99,235,.20);transition:transform .2s ease,box-shadow .2s ease}.main-btn:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 36px rgba(37,99,235,.26)}.main-btn:focus-visible,.text-link:focus-visible,.nav-core a:focus-visible,.drawer-nav a:focus-visible{outline:3px solid rgba(56,189,248,.55);outline-offset:3px}.menu-toggle{width:44px;height:44px;border:1px solid rgba(255,255,255,.12);border-radius:14px;background:rgba(255,255,255,.06);display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer}.menu-toggle span{width:19px;height:2px;background:#EAF4FF;border-radius:999px}.menu-toggle-left{display:none}.site-main{min-height:60vh}.container{width:min(1180px,calc(100% - 40px));margin:0 auto}.section{padding:84px 0}.section-tight{padding:54px 0}.section-soft{background:linear-gradient(180deg,#EEF7FF 0%,#F7FBFF 100%)}.section-aqua{background:linear-gradient(135deg,#E8FCFA 0%,#EEF7FF 100%)}.section-dark{background:#12253A;color:#DDEAF5}.section-dark h2,.section-dark h3{color:#fff}.section-kicker{display:inline-flex;align-items:center;gap:8px;margin-bottom:12px;color:#0284C7;font-size:12px;font-weight:800;letter-spacing:.16em}.section-kicker:before{content:"";width:24px;height:1px;background:#38BDF8}.section-title,h1,h2,h3{color:#102033;line-height:1.25;margin-top:0}.section-title{font-size:clamp(30px,4vw,48px);margin-bottom:18px}.section-lead{max-width:760px;color:#657789;font-size:18px;margin:0}.hero{position:relative;padding:86px 0 72px;overflow:hidden;background:radial-gradient(circle at 85% 20%,rgba(56,189,248,.22),transparent 26%),radial-gradient(circle at 15% 15%,rgba(99,102,241,.12),transparent 25%),linear-gradient(135deg,#F8FBFF 0%,#EAF6FF 52%,#EDFDFB 100%)}.hero:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(37,99,235,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(37,99,235,.04) 1px,transparent 1px);background-size:34px 34px;mask-image:linear-gradient(to bottom,rgba(0,0,0,.75),transparent 86%);pointer-events:none}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}.hero-copy h1{font-size:clamp(46px,7vw,82px);margin:0 0 12px;letter-spacing:-.04em}.hero-subtitle{font-size:clamp(22px,3vw,34px);font-weight:700;color:#172B4D;margin:0 0 22px}.hero-copy p{font-size:17px;color:#52677A;margin:0 0 24px}.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.text-link{font-weight:700}.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.hero-points span,.tag-chip{border:1px solid rgba(59,130,246,.16);background:rgba(255,255,255,.72);border-radius:999px;padding:8px 13px;color:#31516D;font-size:14px}.hero-visual{position:relative;padding:18px}.hero-visual:before{content:"FEATURED";position:absolute;right:0;top:0;font-size:11px;letter-spacing:.18em;font-weight:800;color:#6366F1;background:rgba(255,255,255,.86);padding:7px 12px;border-radius:999px;box-shadow:0 12px 30px rgba(29,78,119,.10)}.hero-visual img{width:100%;border-radius:28px;object-fit:contain;box-shadow:0 28px 70px rgba(29,78,119,.18);border:1px solid rgba(255,255,255,.88)}.floating-media{display:grid;grid-template-columns:1fr .7fr;gap:14px;margin-top:-52px;position:relative;z-index:2;padding:0 26px}.floating-media img{border-radius:20px;background:#fff;padding:6px;box-shadow:0 18px 44px rgba(29,78,119,.14);object-fit:contain}.highlight-strip{margin-top:-1px;border-top:1px solid rgba(59,130,246,.10);border-bottom:1px solid rgba(59,130,246,.10);background:rgba(255,255,255,.7)}.highlight-grid{display:grid;grid-template-columns:repeat(4,1fr)}.highlight-item{padding:24px 26px;position:relative}.highlight-item:not(:last-child):after{content:"";position:absolute;right:0;top:25%;height:50%;width:1px;background:rgba(59,130,246,.13)}.highlight-item small{display:block;color:#0284C7;font-weight:800;margin-bottom:6px}.highlight-item h2{font-size:18px;margin:0 0 6px}.highlight-item p{margin:0;color:#657789;font-size:14px;line-height:1.7}.channel-rail{display:flex;flex-wrap:wrap;gap:12px}.channel-pill{display:inline-flex;gap:8px;align-items:baseline;padding:12px 16px;border:1px solid rgba(59,130,246,.14);border-radius:999px;background:rgba(255,255,255,.78);box-shadow:0 12px 30px rgba(29,78,119,.06)}.channel-pill strong{color:#102033}.channel-pill span{color:#72869A;font-size:13px}.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}.split.reverse .media{order:2}.media img,.content-img{border-radius:24px;box-shadow:0 20px 50px rgba(29,78,119,.10);border:1px solid rgba(59,130,246,.12);object-fit:contain;background:#fff}.copy p{color:#5F7284}.number-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px}.number-card,.card,.info-card,.review-card{background:rgba(255,255,255,.90);border:1px solid rgba(59,130,246,.14);box-shadow:0 20px 50px rgba(29,78,119,.10);border-radius:22px}.number-card{padding:26px}.number-card .num{font-size:12px;font-weight:900;letter-spacing:.15em;color:#6366F1}.number-card h3{font-size:19px;margin:10px 0 8px}.number-card p{margin:0;color:#657789}.editorial-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}.feature-panel{border-radius:28px;padding:32px;background:linear-gradient(135deg,#172B4D,#173C63);color:#DDEAF5;overflow:hidden}.feature-panel h2,.feature-panel h3{color:#fff}.feature-panel img{border-radius:22px;margin-bottom:24px;background:#fff;object-fit:contain}.feature-panel .text-link{color:#7DD3FC}.soft-panel{border-radius:28px;padding:32px;background:linear-gradient(135deg,#EEF7FF,#E8FCFA);border:1px solid rgba(59,130,246,.12)}.soft-panel img{border-radius:20px;margin-bottom:22px;object-fit:contain;background:#fff}.soft-panel p,.feature-panel p{margin-bottom:18px}.stack{display:grid;gap:22px}.service-points{display:grid;gap:12px;margin:20px 0}.service-point{display:flex;gap:12px;align-items:flex-start}.service-point b{display:grid;place-items:center;flex:0 0 30px;height:30px;border-radius:10px;background:#E9F5FF;color:#2563EB}.service-point p{margin:2px 0 0}.triple{display:grid;grid-template-columns:1.05fr .9fr 1.05fr;gap:20px}.triple>article{border-radius:24px;overflow:hidden}.triple .discover-card{background:#12253A;color:#DDEAF5}.triple .discover-card h3{color:#fff}.triple .notice-card{background:#fff;border:1px solid rgba(59,130,246,.14)}.triple .app-card{background:linear-gradient(145deg,#E8FCFA,#EEF7FF)}.triple .card-body{padding:25px}.triple img{width:100%;background:#fff;object-fit:contain}.notice-list{display:grid;gap:12px}.notice-row{display:grid;grid-template-columns:auto 1fr;gap:12px;padding-bottom:12px;border-bottom:1px solid rgba(59,130,246,.12)}.notice-row:last-child{border-bottom:0}.notice-date{font-size:12px;font-weight:800;color:#6366F1}.security-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.security-card{border-radius:28px;padding:30px;background:#fff;border:1px solid rgba(59,130,246,.12)}.security-card img{border-radius:20px;margin-bottom:20px;object-fit:contain}.security-card ul,.list-clean{padding-left:20px;color:#5F7284}.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:start}.review-card{padding:24px}.review-card:nth-child(2n){transform:translateY(18px)}.review-card .quote{font-size:30px;line-height:1;color:#38BDF8}.review-card p{margin:10px 0 0;color:#536A7C}.faq-list{display:grid;gap:12px}.faq-list details{background:#fff;border:1px solid rgba(59,130,246,.14);border-radius:18px;padding:0 20px;box-shadow:0 10px 30px rgba(29,78,119,.05)}.faq-list summary{cursor:pointer;font-weight:800;color:#102033;padding:18px 0;list-style:none}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"＋";float:right;color:#2563EB}.faq-list details[open] summary:after{content:"－"}.faq-list details p{margin:0 0 20px;color:#657789}.age-note{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;padding:28px;border-radius:24px;background:#12253A;color:#DDEAF5}.age-note .mark{width:52px;height:52px;display:grid;place-items:center;border-radius:16px;background:rgba(56,189,248,.14);color:#7DD3FC;font-weight:900}.age-note h2{color:#fff;margin-bottom:8px}.age-note p{margin:0}.inner-hero{padding:72px 0 56px;background:radial-gradient(circle at 80% 10%,rgba(56,189,248,.18),transparent 25%),linear-gradient(135deg,#F9FBFF,#EAF6FF)}.inner-grid{display:grid;grid-template-columns:1fr .9fr;gap:46px;align-items:center}.inner-copy h1{font-size:clamp(38px,5vw,62px);margin-bottom:16px}.inner-copy p{font-size:17px;color:#5E7285}.inner-hero img{border-radius:26px;box-shadow:0 24px 60px rgba(29,78,119,.14);background:#fff;object-fit:contain}.meta-line{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.meta-line span{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid rgba(59,130,246,.13);font-size:13px;color:#536A7C}.content-prose{font-size:16px;color:#52677A}.content-prose p{margin:0 0 16px}.content-prose strong{color:#172B4D}.content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.content-card{padding:26px;border-radius:22px;background:#fff;border:1px solid rgba(59,130,246,.13);box-shadow:0 16px 40px rgba(29,78,119,.07)}.content-card:nth-child(2){background:#EEF7FF}.content-card:nth-child(3){background:#E8FCFA}.content-card h2,.content-card h3{font-size:20px;margin-bottom:10px}.content-card p{margin:0;color:#5E7285}.content-card ul{padding-left:20px;color:#5E7285}.timeline{position:relative;display:grid;gap:18px}.timeline:before{content:"";position:absolute;left:20px;top:10px;bottom:10px;width:1px;background:rgba(59,130,246,.22)}.timeline-item{position:relative;padding:20px 22px 20px 58px;border-radius:20px;background:#fff;border:1px solid rgba(59,130,246,.12)}.timeline-item:before{content:"";position:absolute;left:13px;top:28px;width:15px;height:15px;border-radius:50%;background:#38BDF8;box-shadow:0 0 0 6px #E9F5FF}.timeline-item h3{margin-bottom:8px}.timeline-item p{margin:0;color:#657789}.keyword-cloud{display:flex;flex-wrap:wrap;gap:10px}.keyword-cloud span{padding:10px 14px;border-radius:16px;background:#fff;border:1px solid rgba(59,130,246,.14);color:#31516D}.keyword-cloud span:nth-child(3n){background:#E8FCFA}.keyword-cloud span:nth-child(4n){background:#EEF7FF}.message-board{display:grid;gap:12px;padding:24px;border-radius:26px;background:#12253A}.message-row{max-width:78%;padding:13px 16px;border-radius:18px;background:#fff;color:#40586E}.message-row:nth-child(even){margin-left:auto;background:#DFF7FA}.topic-board{display:grid;gap:12px}.topic-row{padding:18px 20px;border-radius:18px;background:#fff;border:1px solid rgba(59,130,246,.13);display:flex;justify-content:space-between;gap:16px}.topic-row strong{color:#172B4D}.topic-row span{color:#8A9AAA;font-size:13px}.guide-steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.guide-step{counter-increment:step;padding:24px;border-radius:22px;background:#fff;border:1px solid rgba(59,130,246,.13)}.guide-step:before{content:"0" counter(step);display:block;color:#6366F1;font-weight:900;letter-spacing:.12em;margin-bottom:10px}.device-showcase{display:grid;grid-template-columns:.8fr 1.2fr;gap:36px;align-items:center}.device-showcase .device-wrap{padding:28px;border-radius:32px;background:linear-gradient(145deg,#DFF6FF,#E8FCFA)}.device-showcase img{max-height:620px;margin:0 auto;object-fit:contain}.support-band{padding:28px 30px;border-radius:24px;background:linear-gradient(135deg,#172B4D,#124661);color:#DDEAF5}.support-band h2,.support-band h3{color:#fff}.support-band .text-link{color:#7DD3FC}.plain-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.plain-list div{padding:18px 20px;border-left:3px solid #38BDF8;background:rgba(255,255,255,.74);border-radius:0 16px 16px 0}.site-footer{background:#0C1B2A;color:#EAF4FF;padding:64px 0 96px}.footer-inner{width:min(1180px,calc(100% - 40px));margin:0 auto;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}.footer-brand p{color:#AFC4D7;max-width:420px}.footer-logo{margin-bottom:14px}.footer-group h2{font-size:15px;color:#fff;margin-bottom:14px}.footer-group a{display:block;color:#BBD0E1;padding:4px 0;font-size:14px}.footer-group a:hover{color:#7DD3FC}.footer-bottom{width:min(1180px,calc(100% - 40px));margin:38px auto 0;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;gap:24px;color:#90A9BD;font-size:13px}.site-drawer{position:fixed;z-index:10001;top:0;right:0;width:min(390px,88vw);height:100dvh;background:#0F2236;color:#fff;transform:translateX(105%);transition:transform .22s ease;box-shadow:-20px 0 60px rgba(0,0,0,.24);padding:22px;overflow-y:auto}.site-drawer.open{transform:translateX(0)}.drawer-mask{position:fixed;z-index:10000;inset:0;background:rgba(4,15,27,.54);opacity:0;transition:opacity .18s ease}.drawer-mask.show{opacity:1}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.08)}.drawer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800}.drawer-brand img{height:38px;width:auto;object-fit:contain}.drawer-close{border:0;background:rgba(255,255,255,.08);color:#fff;width:42px;height:42px;border-radius:13px;font-size:28px;cursor:pointer}.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:18px}.drawer-nav a{color:#D7E8F5;padding:10px 12px;border-radius:12px;background:rgba(255,255,255,.04)}.drawer-nav a:hover{background:rgba(56,189,248,.12);color:#fff}.drawer-note{margin-top:20px;padding:15px;border-radius:14px;background:rgba(56,189,248,.08);color:#ACC4D6;font-size:13px}.mobile-bottom-nav{display:none}
@media(max-width:980px){.nav-core{display:none}.menu-toggle-left{display:flex}.menu-toggle-right{display:none}.hero-grid,.inner-grid,.split,.editorial-grid,.security-grid,.device-showcase{grid-template-columns:1fr}.split.reverse .media{order:0}.hero-visual{max-width:720px;margin:0 auto}.highlight-grid{grid-template-columns:1fr 1fr}.highlight-item:nth-child(2):after{display:none}.number-grid,.content-grid,.reviews{grid-template-columns:1fr 1fr}.triple{grid-template-columns:1fr 1fr}.triple>article:last-child{grid-column:1/-1}.guide-steps{grid-template-columns:1fr 1fr}.footer-inner{grid-template-columns:1.4fr 1fr 1fr}.footer-group:last-child{grid-column:2/4}.footer-bottom{flex-direction:column}}
@media(max-width:680px){body{padding-bottom:74px}.header-inner{min-height:64px;padding:0 12px}.site-logo strong{font-size:17px}.site-logo img{max-height:36px}.header-cta{min-height:38px;padding:8px 13px;font-size:13px}.menu-toggle{width:40px;height:40px}.hero{padding:54px 0 46px}.container{width:min(100% - 28px,1180px)}.hero-grid{gap:30px}.hero-copy h1{font-size:48px}.hero-subtitle{font-size:24px}.hero-copy p,.section-lead,.inner-copy p{font-size:15px}.floating-media{margin-top:-28px;padding:0 8px}.section{padding:58px 0}.section-tight{padding:42px 0}.section-title{font-size:32px}.highlight-grid,.number-grid,.content-grid,.reviews,.triple,.guide-steps,.plain-list{grid-template-columns:1fr}.highlight-item:after{display:none}.highlight-item{border-bottom:1px solid rgba(59,130,246,.10)}.highlight-item:last-child{border-bottom:0}.triple>article:last-child{grid-column:auto}.review-card:nth-child(2n){transform:none}.inner-hero{padding:52px 0 40px}.inner-grid{gap:28px}.inner-copy h1{font-size:38px}.site-footer{padding-bottom:120px}.footer-inner{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-group:last-child{grid-column:auto}.footer-bottom{font-size:12px}.mobile-bottom-nav{position:fixed;z-index:9998;left:10px;right:10px;bottom:10px;height:58px;border-radius:20px;background:rgba(10,24,42,.95);backdrop-filter:blur(16px);display:grid;grid-template-columns:repeat(4,1fr);box-shadow:0 12px 40px rgba(0,0,0,.20);padding:4px}.mobile-bottom-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;color:#CEE2F2;font-size:11px;line-height:1.3}.mobile-bottom-nav a span{font-size:17px;color:#7DD3FC}.drawer-nav{grid-template-columns:1fr}.age-note{grid-template-columns:1fr}.topic-row{flex-direction:column}.device-showcase img{max-height:500px}.floating-media{grid-template-columns:1fr 1fr}}