:root{--bg:#F5F8FC;--nav:rgba(10,24,42,.94);--title:#102033;--brand:#3B82F6;--deep:#172B4D;--ice:#38BDF8;--cyan:#22D3C5;--violet:#6366F1;--pale:#E9F5FF;--mint:#E8FCFA;--slate:#F0F4F8;--link:#2563EB;--text:#263748;--muted:#657789;--quiet:#8C9AAA;--card:#fff;--dark:#12253A;--border:rgba(59,130,246,.14);--shadow:0 20px 50px rgba(29,78,119,.10);--gradient:linear-gradient(135deg,#2563EB 0%,#3B82F6 48%,#22D3C5 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","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.8;overflow-x:hidden}body.menu-open{overflow:hidden}a{color:var(--link);text-decoration:none}img{display:block;max-width:100%;height:auto}h1,h2,h3{color:var(--title);line-height:1.25;margin-top:0}p{margin:0 0 1em}.wrap{width:min(1180px,calc(100% - 40px));margin:auto}.section{padding:78px 0}.section-tight{padding:52px 0}.section-soft{background:linear-gradient(135deg,#EEF7FF,#F9FCFF 55%,#E8FCFA)}.section-deep{background:linear-gradient(135deg,#10243A,#173454);color:#EAF4FF}.section-deep h2,.section-deep h3{color:#fff}.section-kicker{display:inline-block;color:#0284C7;font-size:.8rem;font-weight:900;letter-spacing:.12em;margin-bottom:10px}.section-title{font-size:clamp(2rem,3.5vw,3.2rem);margin-bottom:18px}.section-lead{max-width:780px;color:var(--muted);font-size:1.04rem}
.site-header{position:sticky;top:0;z-index:9999;background:var(--nav);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% - 32px));min-height:72px;margin:auto;display:flex;align-items:center;gap:18px}.site-logo{display:flex;align-items:center;gap:10px;color:#fff;white-space:nowrap}.site-logo img{max-height:44px;max-width:48px;object-fit:contain}.site-logo strong{font-size:1.18rem}.nav-core{display:flex;align-items:center;gap:6px;margin-left:auto}.nav-link{color:#DCEAF7;padding:8px 11px;border-radius:999px;font-size:.92rem;white-space:nowrap}.nav-link:hover,.nav-link.active{color:#fff;background:rgba(56,189,248,.14)}.header-actions{display:flex;align-items:center;gap:10px}.main-btn,.outline-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;border-radius:999px;font-weight:800;transition:.2s}.main-btn{background:var(--gradient);color:#fff;box-shadow:0 14px 32px rgba(37,99,235,.2)}.main-btn:hover{transform:translateY(-2px)}.outline-btn{background:#fff;border:1px solid rgba(37,99,235,.24);color:var(--link)}.compact{min-height:40px;padding:0 16px}.menu-toggle{width:44px;height:44px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.08);border-radius:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer}.menu-toggle span{width:18px;height:2px;background:#fff;border-radius:3px}.mobile-only{display:none}.drawer-overlay{position:fixed;inset:0;z-index:10020;background:rgba(4,13,24,.5);backdrop-filter:blur(2px)}.site-drawer{position:fixed;right:0;top:0;z-index:10030;width:min(390px,88vw);height:100dvh;overflow:auto;background:#F9FCFF;padding:22px;box-shadow:-24px 0 80px rgba(9,34,62,.24);transform:translateX(105%);transition:.28s}.site-drawer.open{transform:none}.drawer-head{display:flex;justify-content:space-between;align-items:center;padding-bottom:14px;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:10px;color:var(--deep)}.drawer-brand img{width:42px;max-height:42px;object-fit:contain}.drawer-close{width:42px;height:42px;border:0;border-radius:14px;background:#EAF3FA;color:var(--deep);font-size:28px;cursor:pointer}.drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:18px 0}.drawer-link{padding:10px 12px;border-radius:13px;background:#fff;border:1px solid var(--border);color:var(--text)}.drawer-link:hover,.drawer-link.active{background:var(--pale);color:var(--link)}.drawer-note{padding:16px;border-radius:18px;background:var(--mint);font-size:.9rem}
.hero{position:relative;overflow:hidden;padding:88px 0 70px;background:radial-gradient(circle at 8% 18%,rgba(56,189,248,.22),transparent 28%),radial-gradient(circle at 88% 16%,rgba(99,102,241,.16),transparent 25%),linear-gradient(135deg,#F9FCFF,#ECF7FF 54%,#F2FFFD)}.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(37,99,235,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(37,99,235,.045) 1px,transparent 1px);background-size:38px 38px}.hero-grid{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}.hero h1{font-size:clamp(3.2rem,7vw,6rem);margin-bottom:8px;letter-spacing:-.045em}.hero .subhead{font-size:clamp(1.2rem,2vw,1.6rem);font-weight:800;color:var(--deep)}.hero .intro{color:var(--muted)}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0}.hero-points{display:flex;flex-wrap:wrap;gap:10px;padding:0;list-style:none}.hero-points li{padding:8px 13px;background:rgba(255,255,255,.8);border:1px solid var(--border);border-radius:999px}.hero-visual{position:relative;min-height:500px;display:flex;align-items:center}.hero-visual .hero-img{width:100%;border-radius:30px;box-shadow:0 36px 90px rgba(30,78,122,.18)}.hero-float{position:absolute;width:36%;border-radius:20px;box-shadow:var(--shadow);border:7px solid rgba(255,255,255,.9);background:#fff}.hero-float.one{left:-5%;bottom:1%;transform:rotate(-4deg)}.hero-float.two{right:-2%;top:2%;transform:rotate(4deg)}
.highlight-strip{width:min(1180px,calc(100% - 40px));margin:-30px auto 0;position:relative;z-index:3;display:grid;grid-template-columns:repeat(4,1fr);background:rgba(255,255,255,.84);border:1px solid rgba(255,255,255,.9);box-shadow:var(--shadow);backdrop-filter:blur(16px);border-radius:26px;overflow:hidden}.highlight-item{padding:24px}.highlight-item span{font-size:.75rem;color:#0284C7;font-weight:900;letter-spacing:.12em}.highlight-item h2{font-size:1.05rem;margin:5px 0}.highlight-item p{font-size:.88rem;color:var(--muted);margin:0}.channels{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.channel{flex:1 1 210px;padding:13px 16px;border-radius:999px;background:#fff;border:1px solid var(--border)}.channel:nth-child(3n+2){background:var(--mint)}.channel:nth-child(3n+3){background:var(--slate)}.channel strong{display:block;color:var(--deep)}.channel span{font-size:.83rem;color:var(--muted)}
.media-split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}.media-split.reverse .media-visual{order:2}.media-visual img,.inner-hero img{width:100%;border-radius:28px;box-shadow:var(--shadow);object-fit:contain}.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}.mini-card,.card,.review-card,.info-card{background:rgba(255,255,255,.92);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:22px}.mini-card{padding:18px}.mini-card b{color:var(--link);font-size:1.3rem}.dual-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.card{padding:24px}.card img{border-radius:18px;margin-bottom:18px;max-height:320px;width:100%;object-fit:contain}.card.alt{background:linear-gradient(150deg,#F0FBFF,#E8FCFA)}.card.deep{background:var(--dark);color:#DCEAF7}.card.deep h2,.card.deep h3{color:#fff}.points{display:grid;gap:10px;padding:0;list-style:none}.points li{padding:10px 12px;border-left:3px solid var(--ice);background:rgba(255,255,255,.62);border-radius:0 12px 12px 0}.card.deep .points li{background:rgba(255,255,255,.06)}.triple-grid{display:grid;grid-template-columns:1fr .9fr 1.1fr;gap:20px}.triple-grid .card:nth-child(2){margin-top:32px}.safety-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.safety-card{display:grid;grid-template-columns:140px 1fr;gap:20px;align-items:center;padding:24px;border-radius:24px;background:#fff;border:1px solid var(--border)}.safety-card img{border-radius:18px;object-fit:contain}.review-wall{columns:3 260px;column-gap:18px}.review-card{break-inside:avoid;padding:22px;margin:0 0 18px}.review-card small{color:var(--quiet)}.faq-list{display:grid;gap:12px}.faq-list details{background:#fff;border:1px solid var(--border);border-radius:18px;padding:16px 18px;box-shadow:0 8px 28px rgba(29,78,119,.05)}.faq-list summary{cursor:pointer;font-weight:850;color:var(--title)}.faq-list p{padding-top:12px;color:var(--muted)}.notice{padding:28px;border-radius:26px;background:linear-gradient(135deg,#0F2C48,#183B61);color:#EAF4FF}.notice h2{color:#fff}.notice a{color:#8BDDFC}
.inner-hero{padding:70px 0 56px;background:radial-gradient(circle at 80% 15%,rgba(56,189,248,.17),transparent 30%),linear-gradient(135deg,#F9FCFF,#ECF7FF 60%,#EFFCFB)}.inner-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:44px;align-items:center}.inner-hero h1{font-size:clamp(2.6rem,5vw,4.8rem);margin-bottom:14px}.inner-hero p{color:var(--muted)}.breadcrumbs{display:flex;gap:8px;flex-wrap:wrap;font-size:.85rem;color:var(--quiet);margin-bottom:16px}.service-tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.service-tile{padding:22px;border-radius:20px;background:#fff;border:1px solid var(--border)}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:34px}.prose{font-size:1.03rem}.prose p{margin-bottom:1.25em}.prose h2{font-size:1.7rem;margin-top:1.7em}.aside{display:grid;gap:16px;align-content:start;position:sticky;top:98px;height:max-content}.info-card{padding:20px}.guide{counter-reset:n;display:grid;gap:12px}.guide-item{counter-increment:n;display:grid;grid-template-columns:46px 1fr;gap:16px;align-items:start;padding:18px;border-radius:18px;background:#fff;border:1px solid var(--border)}.guide-item:before{content:counter(n,decimal-leading-zero);display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:var(--gradient);color:#fff;font-weight:900}.quote{padding:24px;border-radius:22px;background:linear-gradient(145deg,#EEF7FF,#F5FFFE);border-left:5px solid var(--cyan);margin:26px 0}.page-split{display:grid;grid-template-columns:1fr 1fr;gap:20px}.page-panel{padding:24px;border-radius:22px;background:#fff;border:1px solid var(--border)}.page-panel:nth-child(2){background:var(--mint)}
.site-footer{background:#0C1B2A;color:#EAF4FF;padding:64px 0 28px}.footer-grid{width:min(1180px,calc(100% - 40px));margin:auto;display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:30px}.site-footer h2{color:#fff;font-size:1rem}.site-footer a{display:block;color:#CFE1F2;margin:6px 0}.footer-about p{color:#AFC4D8}.footer-logo{width:max-content;margin-bottom:14px}.footer-bottom{width:min(1180px,calc(100% - 40px));margin:28px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);color:#AFC4D8;font-size:.88rem}.mobile-bottom-nav{display:none}
.page-brand .inner-hero{background:linear-gradient(135deg,#F7FBFF,#E9F5FF)}.page-vlog .inner-hero{background:linear-gradient(135deg,#F8FCFF,#E7F8FF,#F0FFFD)}.page-social .inner-hero{background:linear-gradient(135deg,#F7FBFF,#EEF7FF,#E9FCF9)}.page-match .inner-hero{background:linear-gradient(135deg,#F8FAFF,#EEF0FF,#ECFFFB)}.page-chat .inner-hero{background:linear-gradient(135deg,#F6FBFF,#E8F6FF)}.page-community .inner-hero{background:linear-gradient(135deg,#F9FCFF,#EAF8F5)}.page-discover .inner-hero{background:linear-gradient(135deg,#F8FBFF,#EEF3FF,#F1FFFC)}.page-activity .inner-hero{background:linear-gradient(135deg,#F9FCFF,#EEF7FF)}.page-app .inner-hero{background:linear-gradient(135deg,#F5FAFF,#E5F6FF,#E9FFFB)}.page-safety .inner-hero{background:linear-gradient(135deg,#F8FCFF,#E6F4FF)}.page-privacy .inner-hero{background:linear-gradient(135deg,#F8FCFF,#ECF8FF,#E8FCFA)}
@media(max-width:1050px){.nav-core{display:none}.desktop-menu{display:none}.mobile-only{display:flex}.header-actions{margin-left:auto}.hero-grid,.inner-grid,.media-split,.content-layout{grid-template-columns:1fr}.hero-visual{min-height:390px}.aside{position:static;grid-template-columns:repeat(2,1fr)}.highlight-strip{grid-template-columns:1fr 1fr}.triple-grid{grid-template-columns:1fr 1fr}.triple-grid .card:last-child{grid-column:1/-1}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2/4}}
@media(max-width:760px){.wrap,.highlight-strip,.footer-grid,.footer-bottom{width:min(100% - 26px,1180px)}.header-inner{width:min(100% - 20px,1280px);min-height:64px;gap:9px}.site-logo img{max-height:38px}.site-logo strong{font-size:1rem}.section{padding:60px 0}.hero{padding:54px 0 48px}.hero h1{font-size:clamp(2.7rem,16vw,4.6rem)}.hero-visual{min-height:280px}.highlight-strip{grid-template-columns:1fr;margin-top:-14px}.mini-grid,.dual-grid,.triple-grid,.safety-grid,.service-tiles,.page-split{grid-template-columns:1fr}.triple-grid .card:last-child{grid-column:auto}.triple-grid .card:nth-child(2){margin-top:0}.safety-card{grid-template-columns:100px 1fr}.review-wall{columns:1}.aside{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child,.footer-grid>div:last-child{grid-column:1/-1}.mobile-bottom-nav{position:fixed;z-index:9980;left:12px;right:12px;bottom:10px;display:grid;grid-template-columns:repeat(4,1fr);background:rgba(10,24,42,.94);backdrop-filter:blur(14px);border-radius:20px;padding:8px;box-shadow:0 18px 60px rgba(4,19,34,.28)}.mobile-bottom-nav a{color:#DCEAF7;text-align:center;font-size:.76rem}.mobile-bottom-nav span{display:block;color:#70D8F7;font-size:.68rem}.site-footer{padding-bottom:110px}.drawer-links{grid-template-columns:1fr}}
@media(max-width:480px){.site-logo strong{display:none}.safety-card{grid-template-columns:1fr}}

.layout-b .inner-grid{grid-template-columns:.9fr 1.1fr}.layout-b .inner-grid>div:first-child{order:2}.layout-b .service-tiles .service-tile:nth-child(2){transform:translateY(18px)}.layout-c .service-tiles{grid-template-columns:1.35fr .85fr .85fr}.layout-c .content-layout{grid-template-columns:300px minmax(0,1fr)}.layout-c .prose{order:2}.layout-c .aside{order:1}.layout-d .inner-hero img{max-height:360px}.layout-d .service-tiles .service-tile:first-child{grid-column:span 2}.layout-d .service-tiles{grid-template-columns:repeat(4,1fr)}
@media(max-width:1050px){.layout-b .inner-grid,.layout-c .content-layout{grid-template-columns:1fr}.layout-b .inner-grid>div:first-child,.layout-c .prose,.layout-c .aside{order:initial}.layout-c .service-tiles,.layout-d .service-tiles{grid-template-columns:1fr}.layout-d .service-tiles .service-tile:first-child{grid-column:auto}.layout-b .service-tiles .service-tile:nth-child(2){transform:none}}