:root{--bg:#F5F8FC;--nav:rgba(10,24,42,.94);--title:#102033;--brand:#3B82F6;--deep:#172B4D;--ice:#38BDF8;--cyan:#22D3C5;--indigo:#6366F1;--text:#263748;--muted:#657789;--soft:#8C9AAA;--card:#fff;--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","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75;overflow-x:hidden}body.drawer-open{overflow:hidden}img{max-width:100%;height:auto;display:block}a{color:#2563EB;text-decoration:none}button,a{outline-offset:3px}
.container{width:min(1180px,calc(100% - 40px));margin:0 auto}.narrow{width:min(900px,calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;width:100%;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{max-width:1280px;margin:0 auto;min-height:72px;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}.site-logo{display:flex;align-items:center;min-width:132px}.site-logo img{max-height:44px;max-width:150px;object-fit:contain}
.nav-core{display:flex;align-items:center;justify-content:center;gap:8px;flex:1}.nav-core a{color:#DCEAF7;border-radius:999px;padding:8px 12px;white-space:nowrap;font-size:15px}.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:var(--gradient);color:#fff!important;border-radius:999px;padding:12px 22px;font-weight:700;box-shadow:0 14px 32px rgba(37,99,235,.20);transition:.2s transform,.2s box-shadow}.main-btn:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(37,99,235,.26)}.main-btn.compact{padding:9px 17px;font-size:14px}.secondary-btn{display:inline-flex;border:1px solid rgba(37,99,235,.24);border-radius:999px;padding:10px 18px;color:#1D4ED8;background:rgba(255,255,255,.75);font-weight:650}
.menu-toggle{width:42px;height:42px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);border-radius:14px;display:flex;flex-direction:column;justify-content:center;gap:4px;align-items:center;cursor:pointer}.menu-toggle span{width:18px;height:2px;border-radius:2px;background:#EAF4FF}.mobile-menu-toggle{display:none}
.drawer-mask{position:fixed;inset:0;background:rgba(5,13,24,.48);z-index:10000;backdrop-filter:blur(3px)}.site-drawer{position:fixed;right:0;top:0;width:min(420px,90vw);height:100dvh;z-index:10001;background:#fff;transform:translateX(105%);transition:transform .25s ease;box-shadow:-20px 0 60px rgba(11,34,56,.24);padding:24px;overflow-y:auto}.site-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid #E7EEF6}.drawer-brand{display:flex;align-items:center;gap:10px;color:var(--title);font-weight:800}.drawer-brand img{height:38px;max-width:140px}.drawer-close{width:40px;height:40px;border:0;background:#EEF7FF;border-radius:50%;font-size:26px;cursor:pointer;color:var(--deep)}
.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:20px 0}.drawer-nav a{padding:10px 12px;border-radius:12px;background:#F7FAFD;color:#263748}.drawer-nav a:hover{background:#E9F5FF;color:#2563EB}.drawer-note{padding:16px;border-radius:16px;background:#EEF7FF;color:#5D7083;font-size:14px}
.hero{position:relative;overflow:hidden;padding:72px 0 58px;background:radial-gradient(circle at 80% 25%,rgba(56,189,248,.18),transparent 28%),radial-gradient(circle at 15% 20%,rgba(99,102,241,.11),transparent 25%),linear-gradient(135deg,#F8FBFF,#EEF8FF 48%,#EEFFFC)}.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(59,130,246,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(59,130,246,.035) 1px,transparent 1px);background-size:34px 34px;pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:58px;align-items:center}.hero-kicker,.section-kicker{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:#0284C7;font-weight:800}.hero h1{font-size:clamp(48px,7vw,82px);line-height:1.02;margin:10px 0 16px;color:var(--title);letter-spacing:-.04em}.hero-subtitle{font-size:clamp(22px,3vw,34px);line-height:1.35;color:#193754;font-weight:700;margin:0 0 20px}.hero-copy{font-size:16px;color:#536A80;max-width:680px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 22px}.hero-points{display:flex;flex-wrap:wrap;gap:10px}.hero-points span,.pill{display:inline-flex;padding:7px 12px;border-radius:999px;background:rgba(255,255,255,.75);border:1px solid rgba(59,130,246,.12);color:#335875;font-size:13px}
.hero-visual{position:relative}.hero-visual .hero-main{border-radius:28px;box-shadow:0 28px 70px rgba(24,72,116,.18);background:#fff;padding:10px;object-fit:contain}.hero-visual .floating-img{position:absolute;width:34%;right:-4%;bottom:-9%;border-radius:22px;padding:7px;background:#fff;box-shadow:0 16px 42px rgba(22,78,119,.16)}
.service-strip{border-top:1px solid rgba(59,130,246,.08);border-bottom:1px solid rgba(59,130,246,.08);background:rgba(255,255,255,.72)}.service-strip-grid{display:grid;grid-template-columns:repeat(4,1fr)}.service-bit{padding:24px 26px;position:relative}.service-bit:not(:last-child):after{content:"";position:absolute;right:0;top:22%;height:56%;width:1px;background:#DCE8F2}.service-bit strong{display:block;color:var(--title);margin-bottom:4px}.service-bit p{font-size:13px;line-height:1.65;color:var(--muted);margin:0}
.channel-pills{padding:28px 0}.channel-pills .wrap{display:flex;flex-wrap:wrap;gap:10px}.channel-pill{flex:0 1 auto;min-width:180px;max-width:290px;padding:12px 14px;border:1px solid rgba(59,130,246,.12);border-radius:18px;background:linear-gradient(145deg,rgba(255,255,255,.92),rgba(232,252,250,.74));color:#35516B}.channel-pill b{display:block;color:#183754;font-size:14px}.channel-pill span{display:block;color:#738598;font-size:12px;line-height:1.5;margin-top:2px}
.section{padding:74px 0}.section.alt{background:#EEF7FF}.section.mint{background:#E8FCFA}.section.deep-section{background:#12253A;color:#DDEAF6}.section.deep-section h2,.section.deep-section h3{color:#fff}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}.section-head h2{font-size:clamp(30px,4vw,46px);line-height:1.15;margin:5px 0 0;color:var(--title)}.section-head p{max-width:560px;color:var(--muted);margin:0}
.media-split{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:center}.media-split.reverse .media-visual{order:2}.media-visual img,.content-img{border-radius:24px;box-shadow:var(--shadow);background:#fff;padding:7px;object-fit:contain}.copy h2,.copy h3{color:var(--title)}.copy h2{font-size:clamp(30px,4vw,44px);line-height:1.2;margin:8px 0 18px}.copy p{color:#53697C}.number-line{font-size:13px;letter-spacing:.15em;font-weight:800;color:#2563EB}.text-link{display:inline-flex;margin-top:10px;font-weight:700}
.editorial-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:28px}.stack{display:grid;gap:20px}.card,.zone-card,.info-card,.review-card,.glass-card{border-radius:22px}.card,.zone-card,.info-card,.review-card{background:rgba(255,255,255,.9);border:1px solid var(--border);box-shadow:var(--shadow)}.glass-card{background:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.78);backdrop-filter:blur(18px)}
.zone-card{padding:26px}.zone-card img{border-radius:18px;margin-bottom:20px;background:#fff;padding:6px}.zone-card h3{font-size:25px;margin:5px 0 10px;color:var(--title)}.zone-card p{color:var(--muted)}.zone-card.blue{background:#EEF7FF}.zone-card.mint{background:#E8FCFA}.zone-card.deep{background:#12253A;color:#D7E7F5}.zone-card.deep h3{color:#fff}.zone-card.deep p{color:#B9CDE0}.feature-list{display:grid;gap:10px;margin:18px 0 0;padding:0;list-style:none}.feature-list li{padding:10px 12px;border-radius:14px;background:rgba(255,255,255,.75);border:1px solid rgba(59,130,246,.10);color:#486176}.zone-card.deep .feature-list li{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.08);color:#D7E7F5}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:28px}.three-col{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.info-card{padding:24px}.info-card h3{color:var(--title);margin:5px 0 8px}.info-card p{color:var(--muted);margin:0}.info-card .index{font-weight:800;color:#0284C7;font-size:12px;letter-spacing:.14em}
.safety-panel{display:grid;grid-template-columns:1fr 1fr;gap:26px;padding:28px;border-radius:30px;background:linear-gradient(135deg,#E9F5FF,#F9FCFF 48%,#E8FCFA);border:1px solid rgba(59,130,246,.12)}.safety-card{display:grid;grid-template-columns:.82fr 1.18fr;gap:22px;align-items:center}.safety-card img{border-radius:20px;background:#fff;padding:6px}.safety-card h3{margin:0 0 8px;color:var(--title)}.safety-card p{margin:0;color:var(--muted);font-size:14px}
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:start}.review-card{padding:22px;position:relative}.review-card:nth-child(2n){margin-top:22px}.review-card blockquote{margin:0;color:#475E72}.review-card cite{display:block;margin-top:14px;font-style:normal;color:#8B9BAC;font-size:13px}
.faq-list{display:grid;gap:12px}.faq-item{border:1px solid rgba(59,130,246,.13);border-radius:18px;background:#fff;overflow:hidden}.faq-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 20px;border:0;background:transparent;text-align:left;color:var(--title);font-weight:750;font-size:16px;cursor:pointer}.faq-toggle:after{content:"＋";font-size:22px;color:#2563EB}.faq-item.open .faq-toggle:after{content:"－"}.faq-answer{padding:0 20px 18px;color:var(--muted)}
.notice-band{padding:26px;border-radius:24px;background:#12253A;color:#DDEAF6}.notice-band h2{color:#fff;margin-top:0}
.page-hero{padding:64px 0 50px;position:relative;overflow:hidden;background:linear-gradient(135deg,#F8FBFF 0%,#EEF7FF 54%,#E8FCFA 100%)}.page-hero:before{content:"";position:absolute;width:360px;height:360px;border-radius:50%;right:-120px;top:-180px;background:rgba(56,189,248,.12);filter:blur(3px)}.page-hero-grid{position:relative;display:grid;grid-template-columns:1fr .85fr;gap:46px;align-items:center}.page-hero h1{font-size:clamp(38px,6vw,64px);line-height:1.1;margin:7px 0 15px;color:var(--title)}.page-hero p{color:#577087;font-size:16px}.page-hero img{border-radius:26px;background:#fff;padding:8px;box-shadow:var(--shadow)}
.page-body{padding:60px 0 76px}.page-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:36px}.page-layout.no-aside{grid-template-columns:1fr}.article{min-width:0}.article-section{margin-bottom:38px}.article-section h2{color:var(--title);font-size:28px;margin:0 0 12px}.article-section h3{color:#1E4263;margin:20px 0 8px}.article-section p{margin:0 0 14px;color:#53697C}.article-section img{border-radius:24px;background:#fff;padding:7px;box-shadow:var(--shadow);margin:22px 0}.aside-card{position:sticky;top:96px;align-self:start;padding:22px;border-radius:22px;background:#fff;border:1px solid var(--border);box-shadow:var(--shadow)}.aside-card h2{font-size:18px;margin:0 0 12px;color:var(--title)}.aside-card a{display:block;padding:10px 0;border-bottom:1px solid #EDF2F7;color:#41617C}.aside-card a:last-child{border-bottom:0}
.steps{counter-reset:step;display:grid;gap:14px}.step{position:relative;padding:18px 18px 18px 64px;border-radius:18px;background:#fff;border:1px solid var(--border)}.step:before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;left:18px;top:18px;color:#2563EB;font-weight:800}.tag-cloud{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0}.tag-cloud span{padding:7px 11px;border-radius:999px;background:#E9F5FF;color:#24638F;font-size:13px}
.timeline{display:grid;gap:0}.timeline-item{position:relative;padding:0 0 26px 40px;border-left:1px solid #BBDCF0;margin-left:8px}.timeline-item:before{content:"";position:absolute;left:-6px;top:7px;width:11px;height:11px;border-radius:50%;background:#38BDF8;box-shadow:0 0 0 5px #E9F5FF}.timeline-item:last-child{border-left-color:transparent}.timeline-item h3{margin:0 0 7px;color:var(--title)}.quote-box{padding:24px 26px;border-left:4px solid #38BDF8;border-radius:0 18px 18px 0;background:#EEF7FF;color:#45647D}
.app-device{display:grid;grid-template-columns:.7fr 1.3fr;gap:34px;align-items:center;padding:28px;border-radius:30px;background:#12253A}.app-device img{max-height:560px;margin:auto;box-shadow:none;background:transparent;padding:0}.app-device h2{color:#fff}.app-device p,.app-device li{color:#C5D8E9}
.contact-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.contact-flow .step{padding:22px}.contact-flow .step:before{position:static;display:block;margin-bottom:8px}
.site-footer{background:#0C1B2A;color:#EAF4FF;padding:58px 0 100px}.footer-grid{width:min(1180px,calc(100% - 40px));margin:0 auto;display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:38px}.footer-brand img{max-height:46px;max-width:160px;margin-bottom:16px}.footer-brand p{color:#AFC6DA;max-width:360px}.site-footer h2{font-size:15px;color:#fff;margin:0 0 12px}.site-footer a{display:block;color:#BDD2E5;padding:4px 0;font-size:14px}.site-footer a:hover{color:#fff}.footer-bottom{width:min(1180px,calc(100% - 40px));margin:34px auto 0;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;gap:28px;color:#8FAAC0;font-size:12px}.footer-bottom p{margin:0}.mobile-bottom-nav{display:none}
.page-brand .page-hero{background:linear-gradient(125deg,#F7FAFF,#EDF4FF 60%,#F5F2FF)}.page-vlog .page-hero{background:linear-gradient(135deg,#F8FBFF,#EAF8FF,#E9FFFB)}.page-social .page-hero{background:linear-gradient(135deg,#FAFCFF,#EEF7FF,#EDFDFB)}.page-match .page-hero{background:linear-gradient(135deg,#F7FAFF,#EEF2FF,#EBFBFF)}.page-chat .page-hero{background:linear-gradient(135deg,#F8FBFF,#EFF9FF,#E8FCFA)}.page-community .page-hero{background:linear-gradient(135deg,#F6FAFF,#EAF5FF,#F1F3FF)}.page-discover .page-hero{background:linear-gradient(135deg,#F8FCFF,#EDF8FF,#F0FFFB)}.page-activity .page-hero{background:linear-gradient(135deg,#F8FBFF,#EEF7FF,#F7FAFD)}.page-safety .page-hero,.page-privacy .page-hero{background:linear-gradient(135deg,#F8FBFF,#EAF6FF,#EAFBF9)}
@media(max-width:980px){.nav-core{display:none}.desktop-menu-toggle{display:none}.mobile-menu-toggle{display:flex}.header-inner{min-height:64px;padding:0 14px}.site-logo{min-width:0;justify-content:center}.site-logo img{max-height:38px;max-width:120px}.hero-grid,.page-hero-grid,.media-split,.editorial-grid,.page-layout,.app-device{grid-template-columns:1fr}.hero{padding-top:48px}.hero-visual{max-width:720px}.hero-visual .floating-img{right:2%}.service-strip-grid{grid-template-columns:1fr 1fr}.service-bit:nth-child(2):after{display:none}.two-col,.safety-panel{grid-template-columns:1fr}.three-col,.feature-grid,.reviews{grid-template-columns:1fr 1fr}.review-card:nth-child(2n){margin-top:0}.aside-card{position:static}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
@media(max-width:640px){.container,.narrow{width:min(100% - 28px,1180px)}.header-actions{gap:6px}.main-btn.compact{padding:8px 12px;font-size:12px}.menu-toggle{width:38px;height:38px;border-radius:12px}.hero{padding:38px 0}.hero h1{font-size:48px}.hero-subtitle{font-size:23px}.hero-copy{font-size:15px}.hero-visual .floating-img{position:static;width:42%;margin:-28px 16px 0 auto}.service-strip-grid{grid-template-columns:1fr}.service-bit{padding:18px 16px}.service-bit:after{display:none!important}.section{padding:52px 0}.section-head{display:block}.section-head p{margin-top:12px}.two-col,.three-col,.feature-grid,.reviews,.safety-panel,.contact-flow{grid-template-columns:1fr}.safety-card{grid-template-columns:1fr}.zone-card{padding:20px}.page-hero{padding:42px 0 36px}.page-hero h1{font-size:42px}.page-body{padding:44px 0 86px}.drawer-nav{grid-template-columns:1fr}.site-drawer{padding:18px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{display:block}.mobile-bottom-nav{position:fixed;left:10px;right:10px;bottom:10px;z-index:9998;display:grid;grid-template-columns:repeat(4,1fr);background:rgba(12,27,42,.94);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.10);border-radius:18px;padding:7px;box-shadow:0 18px 42px rgba(9,26,41,.22)}.mobile-bottom-nav a{text-align:center;color:#D8E9F6;font-size:12px;padding:8px 4px;border-radius:12px}.mobile-bottom-nav a:hover{background:rgba(56,189,248,.12);color:#fff}}