:root {
  --bg:#F5F8FC; --nav:#0A182A; --title:#102033; --brand:#3B82F6; --deep:#172B4D;
  --ice:#38BDF8; --cyan:#22D3C5; --indigo:#6366F1; --blue-soft:#E9F5FF; --cyan-soft:#E8FCFA;
  --gray-soft:#F0F4F8; --text:#263748; --muted:#657789; --hint:#8C9AAA; --white:#FFFFFF;
  --border:rgba(59,130,246,.14); --shadow:0 20px 50px rgba(29,78,119,.10); --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.78;overflow-x:hidden}
a{color:#2563EB;text-decoration:none}a:hover{color:#1D4ED8}img{max-width:100%;height:auto;display:block}
button,input,textarea{font:inherit}button{cursor:pointer}.container{width:min(1240px,calc(100% - 40px));margin:0 auto}
.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{width:min(1280px,calc(100% - 36px));margin:0 auto;min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.site-logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;letter-spacing:.04em;white-space:nowrap}.site-logo:hover{color:#fff}.site-logo img{max-height:44px;width:auto;object-fit:contain}.site-logo span{font-size:18px}
.nav-core{display:flex;align-items:center;gap:8px;margin-left:auto}.nav-core a{color:#DCEAF7;border-radius:999px;padding:8px 12px;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;background:linear-gradient(135deg,#2563EB 0%,#3B82F6 48%,#22D3C5 100%);color:#fff;border-radius:999px;box-shadow:0 14px 32px rgba(37,99,235,.20);padding:13px 22px;font-weight:750;border:0;transition:.2s ease}.main-btn:hover{color:#fff;transform:translateY(-1px);box-shadow:0 18px 38px rgba(37,99,235,.24)}.main-btn:focus-visible,.menu-toggle:focus-visible,.drawer-close:focus-visible,a:focus-visible{outline:3px solid rgba(56,189,248,.5);outline-offset:3px}.main-btn.compact{padding:10px 18px;font-size:14px}
.menu-toggle{width:42px;height:42px;border:1px solid rgba(255,255,255,.16);border-radius:14px;background:rgba(255,255,255,.06);display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:5px}.menu-toggle span{width:18px;height:2px;border-radius:999px;background:#EAF4FF}.mobile-only{display:none}
.drawer-overlay{position:fixed;inset:0;z-index:10020;background:rgba(4,15,28,.48);opacity:0;pointer-events:none;transition:.25s ease}.site-drawer{position:fixed;right:0;top:0;z-index:10030;width:min(390px,92vw);height:100dvh;background:#fff;box-shadow:-24px 0 70px rgba(9,31,54,.18);padding:24px;transform:translateX(105%);transition:.3s ease;overflow-y:auto}.drawer-open .drawer-overlay{opacity:1;pointer-events:auto}.drawer-open .site-drawer{transform:translateX(0)}.drawer-open{overflow:hidden}.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px}.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--title)}.drawer-brand img{width:auto;height:40px}.drawer-close{border:0;background:var(--gray-soft);width:40px;height:40px;border-radius:13px;font-size:27px;color:var(--deep);line-height:1}.drawer-intro{color:var(--muted);margin:20px 0}.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px}.drawer-nav a{padding:11px 13px;border-radius:14px;color:var(--text);background:#F8FBFE;border:1px solid var(--border)}.drawer-nav a:hover,.drawer-nav a.active{background:var(--blue-soft);color:#1D4ED8;border-color:rgba(59,130,246,.3)}
main{min-height:65vh}.section{padding:78px 0}.section.tight{padding:46px 0}.section-soft{background:linear-gradient(180deg,rgba(233,245,255,.78),rgba(245,248,252,.3))}.section-cyan{background:linear-gradient(145deg,#E8FCFA 0%,#F7FCFF 52%,#EEF7FF 100%)}.section-deep{background:linear-gradient(135deg,#10253B 0%,#173D5B 62%,#164A5A 100%);color:#EAF4FF}.section-deep h2,.section-deep h3{color:#fff}.section-deep p{color:#D6E5F2}
.section-kicker,.eyebrow{font-size:12px;line-height:1.2;font-weight:850;letter-spacing:.16em;color:#0284C7;text-transform:uppercase}.section-title,h1,h2,h3{color:var(--title);line-height:1.25;margin-top:0}.section-title{font-size:clamp(30px,4vw,48px);margin-bottom:16px}.section-lead{max-width:760px;color:var(--muted);font-size:18px}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:32px}.section-head .section-lead{margin:0}
.card,.zone-card,.info-card,.review-card{background:rgba(255,255,255,.9);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:22px}.glass-card{background:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.78);backdrop-filter:blur(18px);border-radius:22px}.content-img,.zone-card img,.app-section img,.hero-visual img,.media-img{max-width:100%;height:auto;object-fit:contain;border-radius:24px;box-shadow:0 22px 58px rgba(22,66,104,.13)}
.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 85% 8%,rgba(56,189,248,.23),transparent 28%),radial-gradient(circle at 18% 80%,rgba(34,211,197,.18),transparent 28%),linear-gradient(135deg,#F9FCFF 0%,#EEF7FF 50%,#F4F4FF 100%);padding:72px 0 60px}.hero:before{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:42px 42px;mask-image:linear-gradient(to bottom,rgba(0,0,0,.75),transparent)}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:58px}.hero-copy h1{font-size:clamp(48px,7vw,82px);margin:10px 0 18px;letter-spacing:-.04em}.hero-subtitle{font-size:clamp(22px,2.7vw,34px);font-weight:760;color:var(--deep);line-height:1.45;margin:0 0 16px}.hero-copy>p:not(.eyebrow):not(.hero-subtitle){font-size:17px;color:var(--muted);max-width:680px}.hero-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin:28px 0}.text-link{font-weight:750}.hero-points{display:flex;gap:12px;flex-wrap:wrap}.hero-points span{padding:9px 13px;border-radius:999px;background:rgba(255,255,255,.7);border:1px solid rgba(59,130,246,.16);color:#35526A;font-size:14px}.hero-visual{position:relative;min-height:520px;display:flex;align-items:center;justify-content:center}.hero-visual .hero-main{width:min(100%,620px);position:relative;z-index:2}.hero-visual .float-card{position:absolute;z-index:3;width:190px;padding:12px;background:rgba(255,255,255,.84);border:1px solid rgba(255,255,255,.75);backdrop-filter:blur(12px);border-radius:20px;box-shadow:0 18px 50px rgba(22,66,104,.12)}.hero-visual .float-card img{border-radius:14px;box-shadow:none}.hero-visual .float-card.a{left:-3%;bottom:3%}.hero-visual .float-card.b{right:-2%;top:5%}
.highlight-strip{margin-top:-18px;position:relative;z-index:5}.highlight-grid{display:grid;grid-template-columns:repeat(4,1fr);background:rgba(255,255,255,.85);backdrop-filter:blur(18px);border:1px solid rgba(59,130,246,.13);border-radius:22px;box-shadow:0 20px 50px rgba(29,78,119,.10);overflow:hidden}.highlight-item{padding:24px 22px}.highlight-item+.highlight-item{border-left:1px solid var(--border)}.highlight-number{font-weight:850;color:#38BDF8;font-size:12px;letter-spacing:.12em}.highlight-item h2{font-size:18px;margin:8px 0}.highlight-item p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}
.pill-nav{display:flex;flex-wrap:wrap;gap:12px}.pill-link{flex:0 1 auto;max-width:280px;padding:15px 17px;border-radius:18px;background:rgba(255,255,255,.76);border:1px solid var(--border);box-shadow:0 12px 30px rgba(29,78,119,.06)}.pill-link strong{display:block;color:var(--title);margin-bottom:3px}.pill-link span{display:block;font-size:13px;color:var(--muted);line-height:1.55}.pill-link:hover{background:#fff;transform:translateY(-2px)}
.editorial-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:44px;align-items:center}.editorial-grid.reverse{grid-template-columns:1.08fr .92fr}.editorial-grid.reverse .editorial-media{order:2}.editorial-copy p{color:var(--muted)}.number-label{font-size:13px;font-weight:850;color:#2563EB;letter-spacing:.14em}.feature-list{display:grid;gap:12px;margin:22px 0}.feature-list div{padding:14px 16px;border-left:3px solid #38BDF8;background:rgba(255,255,255,.7);border-radius:0 14px 14px 0}.feature-list strong{color:var(--title)}
.duo-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.duo-panel{padding:28px;border-radius:28px;overflow:hidden}.duo-panel.blue{background:linear-gradient(145deg,#EEF7FF,#F8FCFF);border:1px solid rgba(59,130,246,.14)}.duo-panel.cyan{background:linear-gradient(145deg,#E8FCFA,#F7FFFF);border:1px solid rgba(34,211,197,.18)}.duo-panel.deep{background:#12253A;color:#EAF4FF}.duo-panel.deep h2,.duo-panel.deep h3{color:#fff}.duo-panel img{border-radius:20px;margin-bottom:22px}.duo-panel p{color:var(--muted)}.duo-panel.deep p{color:#C8D9E7}.mini-points{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:20px 0}.mini-points span{padding:9px 11px;border-radius:12px;background:rgba(255,255,255,.72);border:1px solid rgba(59,130,246,.12);font-size:13px;color:#35526A}.duo-panel.deep .mini-points span{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.12);color:#EAF4FF}
.trio-grid{display:grid;grid-template-columns:1.15fr .9fr 1fr;gap:20px;align-items:stretch}.trio-card{padding:26px;border-radius:26px;border:1px solid var(--border);background:#fff}.trio-card:nth-child(2){background:linear-gradient(160deg,#F1F5FF,#FFFFFF)}.trio-card:nth-child(3){background:linear-gradient(160deg,#E8FCFA,#FFFFFF)}.trio-card img{border-radius:18px;margin-bottom:18px}.date-list{display:grid;gap:12px}.date-item{display:grid;grid-template-columns:54px 1fr;gap:12px;align-items:start}.date-item strong{display:flex;align-items:center;justify-content:center;width:54px;height:54px;border-radius:16px;background:#172B4D;color:#fff;font-size:13px}.date-item p{margin:0;color:var(--muted);font-size:14px}
.safety-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}.safety-card{padding:28px}.safety-card img{border-radius:20px;margin-bottom:18px}.safety-card ul{padding-left:20px;margin-bottom:0;color:var(--muted)}
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.review-card{padding:24px}.review-card:nth-child(2n){transform:translateY(18px)}.review-card p{margin:0;color:var(--text)}.review-card footer{margin-top:18px;color:var(--hint);font-size:13px}
.faq-list{display:grid;gap:12px}.faq-list details{background:#fff;border:1px solid var(--border);border-radius:18px;padding:0 20px;box-shadow:0 10px 28px rgba(29,78,119,.05)}.faq-list summary{cursor:pointer;list-style:none;font-weight:800;color:var(--title);padding:18px 0}.faq-list summary::-webkit-details-marker{display:none}.faq-list details p{margin:0;padding:0 0 20px;color:var(--muted)}
.notice-band{display:grid;grid-template-columns:.72fr 1.28fr;gap:30px;align-items:center;padding:32px;border-radius:26px;background:linear-gradient(135deg,#172B4D,#154661);color:#EAF4FF}.notice-band h2{color:#fff;margin-bottom:10px}.notice-band p{margin:0;color:#D5E4EF}.notice-badges{display:flex;gap:10px;flex-wrap:wrap}.notice-badges span{padding:10px 13px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);font-size:13px}
.inner-hero{padding:64px 0 48px;background:radial-gradient(circle at 85% 25%,rgba(56,189,248,.18),transparent 30%),linear-gradient(145deg,#F8FCFF,#EEF7FF 64%,#F5F8FC)}.inner-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.inner-hero h1{font-size:clamp(40px,5vw,64px);margin:10px 0 16px}.inner-hero p{font-size:17px;color:var(--muted)}.inner-hero img{border-radius:28px;box-shadow:0 24px 62px rgba(22,66,104,.14);max-height:520px;margin:0 auto;object-fit:contain}
.content-grid{display:grid;grid-template-columns:minmax(0,1.18fr) minmax(280px,.82fr);gap:28px;align-items:start}.article-card{background:#fff;border:1px solid var(--border);border-radius:26px;padding:32px;box-shadow:var(--shadow)}.article-card p{color:var(--muted);margin:0 0 16px}.article-card p:last-child{margin-bottom:0}.side-stack{display:grid;gap:18px}.side-card{padding:24px;border-radius:22px;background:linear-gradient(150deg,#E9F5FF,#FFFFFF);border:1px solid var(--border)}.side-card.cyan{background:linear-gradient(150deg,#E8FCFA,#FFFFFF)}.side-card.deep{background:#12253A;color:#EAF4FF}.side-card.deep h3{color:#fff}.side-card.deep p{color:#C8D9E7}.side-card h3{font-size:20px;margin-bottom:10px}.side-card p{margin:0;color:var(--muted)}
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.step-card{counter-increment:step;padding:24px;border-radius:22px;background:#fff;border:1px solid var(--border)}.step-card:before{content:"0" counter(step);display:block;font-weight:900;color:#38BDF8;letter-spacing:.12em;margin-bottom:10px}.step-card h3{font-size:19px;margin-bottom:8px}.step-card p{margin:0;color:var(--muted)}
.topic-cloud{display:flex;flex-wrap:wrap;gap:10px}.topic-cloud span{padding:10px 13px;border-radius:999px;background:#fff;border:1px solid var(--border);color:#35526A}.topic-cloud span:nth-child(3n){background:var(--cyan-soft)}.topic-cloud span:nth-child(3n+1){background:var(--blue-soft)}
.media-stream{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}.media-story{padding:24px;border-radius:26px;background:#fff;border:1px solid var(--border)}.media-story img{border-radius:20px;margin-bottom:18px}.media-stack{display:grid;gap:20px}.media-note{padding:22px;border-radius:22px;background:linear-gradient(145deg,#F3F7FF,#FFFFFF);border:1px solid var(--border)}
.timeline{display:grid;gap:14px}.timeline-item{display:grid;grid-template-columns:74px 1fr;gap:18px;align-items:start;padding:18px 0;border-bottom:1px solid var(--border)}.timeline-item:last-child{border-bottom:0}.timeline-item strong{color:#2563EB}.timeline-item p{margin:0;color:var(--muted)}
.quote-panel{padding:30px;border-radius:26px;background:linear-gradient(145deg,#FFFFFF,#EEF7FF);border:1px solid var(--border);box-shadow:var(--shadow)}.quote-panel blockquote{margin:0;font-size:18px;color:var(--deep)}.quote-panel cite{display:block;margin-top:16px;color:var(--hint);font-size:13px;font-style:normal}
.link-row{display:flex;gap:16px;flex-wrap:wrap;margin-top:18px}.link-row a{font-weight:760}.link-row a:after{content:" →"}
.app-showcase{display:grid;grid-template-columns:.8fr 1.2fr;gap:42px;align-items:center}.app-showcase .device{padding:28px;border-radius:34px;background:linear-gradient(160deg,#12253A,#18486B);box-shadow:0 26px 64px rgba(16,55,84,.2)}.app-showcase .device img{max-height:620px;margin:0 auto;border-radius:22px;box-shadow:none}.feature-matrix{display:grid;grid-template-columns:1fr 1fr;gap:14px}.feature-cell{padding:20px;border-radius:20px;background:#fff;border:1px solid var(--border)}.feature-cell h3{font-size:18px;margin-bottom:7px}.feature-cell p{font-size:14px;color:var(--muted);margin:0}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.contact-card{padding:24px;border-radius:22px;background:#fff;border:1px solid var(--border)}.contact-card h3{font-size:18px}.contact-card p{color:var(--muted);margin-bottom:0}
.site-footer{background:#0C1B2A;color:#EAF4FF;padding:60px 0 28px}.footer-inner{width:min(1240px,calc(100% - 40px));margin:0 auto;display:grid;grid-template-columns:1.45fr 1fr 1fr 1fr;gap:36px}.footer-logo{margin-bottom:18px}.footer-brand p{color:#BFD1E0;margin:0;max-width:460px}.site-footer h2{color:#fff;font-size:16px;margin:0 0 14px}.site-footer section>a:not(.site-logo){display:block;color:#C9DBE8;padding:4px 0;font-size:14px}.site-footer section>a:hover{color:#fff}.footer-bottom{width:min(1240px,calc(100% - 40px));margin:36px auto 0;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;gap:30px;color:#94AFC3;font-size:13px}.footer-bottom p{margin:0}.mobile-bottom-nav{display:none}
.page-vlog .inner-hero{background:linear-gradient(135deg,#F5F8FC,#E9F5FF 48%,#E8FCFA)}.page-social .inner-hero{background:linear-gradient(135deg,#F9FCFF,#EEF7FF)}.page-match .inner-hero{background:linear-gradient(135deg,#F8FCFF,#E8FCFA 55%,#F4F4FF)}.page-chat .inner-hero{background:linear-gradient(135deg,#F1F6FF,#F8FCFF)}.page-community .inner-hero{background:linear-gradient(135deg,#F6FBFF,#E9F5FF 45%,#F0F4F8)}.page-discover .inner-hero{background:linear-gradient(135deg,#F9FCFF,#F3F4FF 55%,#E9F5FF)}.page-safety .inner-hero,.page-privacy .inner-hero{background:linear-gradient(135deg,#EFF7FF,#F8FCFF 58%,#E8FCFA)}
@media (max-width:1080px){.nav-core{gap:2px}.nav-core a{padding:8px 9px;font-size:14px}.hero-grid,.inner-hero-grid{grid-template-columns:1fr 1fr;gap:34px}.trio-grid{grid-template-columns:1fr 1fr}.trio-card:last-child{grid-column:1/-1}.reviews{grid-template-columns:1fr 1fr}.footer-inner{grid-template-columns:1.4fr 1fr 1fr}.footer-inner section:last-child{grid-column:2/4}}
@media (max-width:860px){.container{width:min(100% - 28px,1240px)}.header-inner{width:min(100% - 20px,1280px);min-height:64px}.nav-core,.desktop-only{display:none}.mobile-only{display:inline-flex}.header-inner>.site-logo{position:absolute;left:50%;transform:translateX(-50%)}.header-inner>.site-logo span{display:none}.header-inner>.site-logo img{max-height:38px}.header-actions{margin-left:auto}.main-btn.compact{padding:9px 14px}.hero{padding:50px 0 42px}.hero-grid,.inner-hero-grid,.editorial-grid,.editorial-grid.reverse,.notice-band,.app-showcase,.content-grid{grid-template-columns:1fr}.editorial-grid.reverse .editorial-media{order:0}.hero-visual{min-height:400px}.highlight-grid{grid-template-columns:1fr 1fr}.highlight-item:nth-child(3){border-left:0;border-top:1px solid var(--border)}.highlight-item:nth-child(4){border-top:1px solid var(--border)}.duo-grid,.safety-grid{grid-template-columns:1fr}.trio-grid{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr 1fr}.media-stream{grid-template-columns:1fr}.reviews{grid-template-columns:1fr 1fr}.review-card:nth-child(2n){transform:none}.footer-inner{grid-template-columns:1fr 1fr}.footer-inner section:last-child{grid-column:auto}.footer-brand{grid-column:1/-1}.footer-bottom{flex-direction:column}.section{padding:58px 0}.section-head{align-items:flex-start;flex-direction:column}.contact-grid{grid-template-columns:1fr 1fr}}
@media (max-width:620px){body{padding-bottom:72px}.site-drawer{left:0;right:auto;transform:translateX(-105%)}.drawer-open .site-drawer{transform:translateX(0)}.drawer-nav{grid-template-columns:1fr 1fr}.hero-copy h1{font-size:48px}.hero-subtitle{font-size:22px}.hero-visual{min-height:auto;display:block;padding:10px 0 74px}.hero-visual .float-card{width:148px}.hero-visual .float-card.a{left:2%;bottom:0}.hero-visual .float-card.b{right:2%;top:auto;bottom:8px}.highlight-grid,.trio-grid,.reviews,.steps,.feature-matrix,.contact-grid{grid-template-columns:1fr}.highlight-item+.highlight-item,.highlight-item:nth-child(3),.highlight-item:nth-child(4){border-left:0;border-top:1px solid var(--border)}.pill-link{max-width:none;flex:1 1 100%}.mini-points{grid-template-columns:1fr 1fr}.article-card,.safety-card{padding:24px}.inner-hero{padding:48px 0 36px}.inner-hero h1{font-size:40px}.section-title{font-size:31px}.footer-inner{grid-template-columns:1fr}.footer-brand{grid-column:auto}.mobile-bottom-nav{position:fixed;display:grid;grid-template-columns:repeat(4,1fr);left:10px;right:10px;bottom:10px;z-index:9995;background:rgba(12,27,42,.94);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.10);border-radius:20px;box-shadow:0 18px 42px rgba(5,20,36,.24);padding:7px}.mobile-bottom-nav a{display:flex;flex-direction:column;align-items:center;gap:2px;color:#C9DBE8;font-size:11px;padding:4px;border-radius:13px}.mobile-bottom-nav a span{font-size:17px;line-height:1.2}.mobile-bottom-nav a.active{color:#fff;background:rgba(56,189,248,.12)}.site-footer{padding-bottom:82px}.footer-bottom{width:min(100% - 28px,1240px)}.footer-inner{width:min(100% - 28px,1240px)}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}