:root{--bg:#F5F8FC;--nav:#0A182A;--ink:#102033;--text:#263748;--muted:#657789;--soft:#8C9AAA;--blue:#3B82F6;--deep:#172B4D;--ice:#38BDF8;--cyan:#22D3C5;--violet:#6366F1;--line:rgba(59,130,246,.14);--shadow:0 20px 50px rgba(29,78,119,.10);--grad:linear-gradient(135deg,#2563EB 0%,#3B82F6 48%,#22D3C5 100%);--radius:22px;--max:1240px}
*{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:1.78;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}button,a{outline-offset:3px}button:focus-visible,a:focus-visible{outline:3px solid rgba(56,189,248,.55)}
.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 22px;display:flex;align-items:center;justify-content:space-between;gap:20px}.site-logo{display:flex;align-items:center;gap:10px;color:#fff;min-width:max-content}.site-logo img{max-height:44px;max-width:48px;display:block;object-fit:contain}.site-logo strong{font-size:20px;letter-spacing:.04em}.nav-core{display:flex;align-items:center;gap:8px}.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:var(--grad);color:#fff;border-radius:999px;box-shadow:0 14px 32px rgba(37,99,235,.20);padding:12px 22px;font-weight:700;transition:.2s transform,.2s box-shadow}.main-btn:hover{transform:translateY(-1px);box-shadow:0 16px 34px rgba(37,99,235,.27)}.main-btn.compact{padding:9px 16px;font-size:14px}.outline-btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(37,99,235,.23);background:#fff;color:#2563EB;border-radius:999px;padding:11px 18px;font-weight:700}.menu-btn{border:0;background:rgba(255,255,255,.08);width:42px;height:42px;border-radius:14px;display:flex;flex-direction:column;justify-content:center;gap:5px;align-items:center;cursor:pointer}.menu-btn span{width:19px;height:2px;border-radius:2px;background:#EAF4FF}.mobile-menu-btn{display:none}.drawer-mask{position:fixed;inset:0;background:rgba(7,17,30,.46);z-index:10000;opacity:0;visibility:hidden;transition:.25s}.drawer-mask.show{opacity:1;visibility:visible}.site-drawer{position:fixed;top:0;right:0;width:min(390px,88vw);height:100vh;background:#fff;z-index:10001;transform:translateX(105%);transition:.28s ease;box-shadow:-24px 0 60px rgba(11,31,52,.18);overflow:auto}.site-drawer.open{transform:translateX(0)}.drawer-head{position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}.drawer-brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:800}.drawer-brand img{width:38px;height:38px;object-fit:contain}.drawer-close{border:0;background:#EEF7FF;color:var(--deep);font-size:30px;width:40px;height:40px;border-radius:12px;cursor:pointer;line-height:1}.drawer-nav{padding:12px}.drawer-nav a{display:flex;align-items:center;justify-content:space-between;padding:13px 12px;border-radius:14px;color:var(--text);border-bottom:1px solid rgba(59,130,246,.06)}.drawer-nav a:hover{background:#EEF7FF;color:#2563EB}
.site-main{min-height:60vh}.container{max-width:var(--max);margin:0 auto;padding:0 24px}.section{padding:82px 0}.section.tight{padding:54px 0}.section.alt{background:linear-gradient(180deg,#EEF7FF 0%,#F8FCFF 100%)}.section.cyan{background:linear-gradient(180deg,#E8FCFA 0%,#F8FFFE 100%)}.section.deep{background:linear-gradient(135deg,#10263D 0%,#173A59 55%,#15506B 100%);color:#DCEAF7}.section.deep h2,.section.deep h3{color:#fff}.section-head{display:flex;justify-content:space-between;gap:30px;align-items:flex-end;margin-bottom:30px}.section-head>div{max-width:760px}.section-kicker,.label,.badge,.tag{display:inline-flex;align-items:center;gap:8px;color:#0284C7;font-weight:800;letter-spacing:.08em;font-size:12px;text-transform:uppercase}.section-kicker:before{content:"";width:24px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--blue),var(--cyan))}.section-title,h1,h2,h3{color:var(--ink);line-height:1.28;margin-top:0}h1{font-size:clamp(36px,6vw,68px);letter-spacing:-.04em;margin-bottom:18px}h2{font-size:clamp(28px,3.4vw,42px);letter-spacing:-.02em;margin-bottom:14px}h3{font-size:20px;margin-bottom:10px}p{margin:0 0 16px}.lead{font-size:18px;color:#4B6378;max-width:840px}.muted{color:var(--muted)}.text-link{font-weight:750;color:#2563EB}.text-link:after{content:" →"}.pill-row{display:flex;flex-wrap:wrap;gap:10px}.pill{display:inline-flex;padding:8px 12px;border-radius:999px;background:#EEF7FF;border:1px solid var(--line);color:#205B98;font-size:14px}.number{font:800 13px/1 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.1em;color:#2563EB}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.stack{display:grid;gap:18px}.card,.zone-card,.info-card,.review-card{background:rgba(255,255,255,.90);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:var(--radius)}.card,.info-card,.review-card{padding:26px}.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{max-width:100%;height:auto;object-fit:contain}.content-img{border-radius:24px;box-shadow:0 24px 60px rgba(24,70,108,.12);display:block}.image-frame{background:linear-gradient(145deg,#EAF7FF,#F7FCFF 48%,#E7FBF8);border:1px solid var(--line);border-radius:30px;padding:18px;position:relative}.image-frame:after{content:"";position:absolute;width:120px;height:120px;background:rgba(56,189,248,.12);filter:blur(20px);border-radius:50%;right:-20px;bottom:-20px}.image-frame img{position:relative;z-index:1;border-radius:20px;display:block}
.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 72% 18%,rgba(56,189,248,.24),transparent 28%),radial-gradient(circle at 18% 82%,rgba(34,211,197,.16),transparent 30%),linear-gradient(135deg,#F8FBFF 0%,#EAF5FF 52%,#F1FEFC 100%)}.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:36px 36px;mask-image:linear-gradient(to bottom,#000,transparent)}.hero-inner{position:relative;max-width:1280px;margin:0 auto;padding:76px 24px 70px;display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center}.hero-copy{position:relative;z-index:2}.hero-copy .eyebrow{display:inline-flex;padding:8px 12px;background:rgba(255,255,255,.78);border:1px solid rgba(59,130,246,.14);border-radius:999px;color:#2563EB;font-size:13px;font-weight:800;margin-bottom:20px}.hero-subtitle{font-size:clamp(21px,2.4vw,30px);color:#173A59;font-weight:750;margin-bottom:16px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.hero-points{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:28px;color:#516A7E;font-size:14px}.hero-points span:before{content:"•";color:#22D3C5;font-weight:900;margin-right:7px}.hero-visual{position:relative;min-height:480px}.hero-visual .hero-main{width:100%;border-radius:30px;box-shadow:0 32px 80px rgba(19,65,101,.18);background:#fff;padding:10px;position:relative;z-index:2}.hero-visual .hero-float{position:absolute;width:42%;right:-4%;bottom:2%;z-index:3;border-radius:24px;box-shadow:0 18px 44px rgba(26,76,117,.16);background:#fff;padding:8px}.hero-visual .hero-chip{position:absolute;left:-7%;top:14%;z-index:4;padding:14px 16px;border-radius:18px;background:rgba(255,255,255,.82);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.88);box-shadow:0 14px 34px rgba(29,78,119,.12);font-size:13px;color:#35566F}.hero-visual .hero-chip strong{display:block;color:#102033;font-size:16px}
.highlight-strip{position:relative;margin-top:-22px;z-index:5}.highlight-grid{max-width:1180px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:repeat(4,1fr);background:rgba(255,255,255,.86);backdrop-filter:blur(18px);border:1px solid rgba(255,255,255,.9);box-shadow:0 22px 50px rgba(29,78,119,.10);border-radius:24px}.highlight-item{padding:22px 24px}.highlight-item+.highlight-item{border-left:1px solid var(--line)}.highlight-item h3{font-size:17px;margin-bottom:5px}.highlight-item p{font-size:13px;color:var(--muted);margin:0;line-height:1.65}.channel-cloud{display:flex;flex-wrap:wrap;gap:13px}.channel-pill{display:flex;align-items:center;gap:12px;padding:12px 15px;border-radius:999px;background:rgba(255,255,255,.82);border:1px solid var(--line);box-shadow:0 8px 22px rgba(33,85,125,.05);color:var(--text)}.channel-pill span{color:#2563EB;font-weight:800}.channel-pill small{color:var(--muted)}
.editorial{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:center}.editorial.reverse{grid-template-columns:1.1fr .9fr}.editorial.reverse .visual{order:2}.editorial.reverse .copy{order:1}.feature-list{display:grid;gap:12px;margin:22px 0}.feature-item{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start;padding:14px 0;border-bottom:1px solid rgba(59,130,246,.10)}.feature-item strong{color:var(--ink)}.feature-item p{margin:2px 0 0;color:var(--muted);font-size:14px}.media-card{overflow:hidden}.media-card img{display:block;width:100%;height:auto;object-fit:contain;background:#eef7ff}.media-card .body{padding:24px}.media-card.soft-blue{background:#EEF7FF}.media-card.soft-cyan{background:#E8FCFA}.media-card.deep-card{background:#12253A;color:#DCEAF7}.media-card.deep-card h3{color:#fff}.media-card.deep-card .text-link{color:#7DD3FC}
.timeline{display:grid;gap:0;border-left:2px solid rgba(59,130,246,.18);padding-left:22px}.timeline-item{position:relative;padding:0 0 24px 8px}.timeline-item:before{content:"";position:absolute;left:-30px;top:7px;width:12px;height:12px;background:#38BDF8;border:3px solid #fff;border-radius:50%;box-shadow:0 0 0 1px rgba(59,130,246,.20)}.timeline-item time{font-size:12px;color:#0284C7;font-weight:800;letter-spacing:.07em}.review-grid{columns:3;column-gap:20px}.review-card{break-inside:avoid;margin-bottom:20px}.review-card q{display:block;color:#334C61}.review-card footer{margin-top:12px;color:#7A8D9F;font-size:13px}.faq-list{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:18px;padding:0 20px;box-shadow:0 12px 28px rgba(29,78,119,.06)}.faq-item summary{cursor:pointer;padding:18px 34px 18px 0;font-weight:800;color:var(--ink);list-style:none;position:relative}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";position:absolute;right:0;top:15px;width:28px;height:28px;display:grid;place-items:center;border-radius:50%;background:#EEF7FF;color:#2563EB}.faq-item[open] summary:after{content:"−"}.faq-item .faq-answer{padding:0 0 18px;color:var(--muted)}
.notice-box{padding:28px;border-radius:26px;background:linear-gradient(135deg,#10283F,#143B58 62%,#165268);color:#DCEAF7}.notice-box h2,.notice-box h3{color:#fff}.notice-box a{color:#7DD3FC}.mini-stats{display:flex;gap:24px;flex-wrap:wrap;margin-top:24px}.mini-stat strong{display:block;font-size:28px;color:#fff}.mini-stat span{font-size:13px;color:#BFD8E9}.service-route{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.route-step{position:relative;padding:22px;border-radius:20px;background:#fff;border:1px solid var(--line)}.route-step .number{margin-bottom:14px}.tag-wall{display:flex;flex-wrap:wrap;gap:10px}.tag-wall span{padding:9px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#31546D}.message-stack{display:grid;gap:12px}.message-bubble{max-width:82%;padding:13px 15px;border-radius:18px;background:#EEF7FF;border:1px solid var(--line)}.message-bubble.me{margin-left:auto;background:#E8FCFA}.topic-list{display:grid;gap:10px}.topic-row{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid rgba(59,130,246,.10)}.topic-row strong{color:var(--ink)}.topic-row small{color:var(--muted)}
.subpage-hero{padding:64px 0 44px;background:radial-gradient(circle at 80% 15%,rgba(56,189,248,.20),transparent 26%),linear-gradient(180deg,#F8FBFF,#EEF7FF)}.subpage-hero .wrap{max-width:var(--max);margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1.02fr .98fr;gap:44px;align-items:center}.subpage-hero h1{font-size:clamp(36px,4.5vw,58px)}.subpage-hero .image-frame{max-width:560px;margin-left:auto}.subpage-hero.compact .wrap{grid-template-columns:1fr}.subpage-hero.compact .copy{max-width:850px}.subpage-hero.darkish{background:radial-gradient(circle at 80% 10%,rgba(56,189,248,.18),transparent 27%),linear-gradient(135deg,#0F2236,#173A55)}.subpage-hero.darkish h1,.subpage-hero.darkish h2{color:#fff}.subpage-hero.darkish p{color:#C7D9E7}.split-note{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}.aside-note{padding:24px;border-radius:22px;background:#EEF7FF;border:1px solid var(--line)}.quote-panel{padding:34px;border-radius:26px;background:#fff;box-shadow:var(--shadow);border:1px solid var(--line);font-size:20px;color:#24465E}.quote-panel strong{display:block;margin-top:14px;font-size:14px;color:#6D8192}.policy-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}.policy-points{display:grid;gap:14px}.policy-point{padding:18px;border-radius:18px;background:#fff;border:1px solid var(--line)}
.site-footer{background:#0C1B2A;color:#EAF4FF;padding-top:58px}.footer-inner{max-width:var(--max);margin:0 auto;padding:0 24px 44px;display:grid;grid-template-columns:1.1fr 2.2fr;gap:50px}.footer-brand p{color:#BFD0DF;max-width:420px}.footer-logo{margin-bottom:16px}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.footer-links h2{font-size:14px;color:#fff;margin:0 0 13px}.footer-links a,.footer-links p{display:block;color:#BFD0DF;font-size:13px;margin:0 0 8px}.footer-links a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.08);max-width:var(--max);margin:0 auto;padding:18px 24px 24px;display:flex;justify-content:space-between;gap:20px;color:#8FA8BC;font-size:12px}.mobile-bottom-nav{display:none}
/* page-specific visual accents */
.page-vlog .subpage-hero{background:radial-gradient(circle at 85% 10%,rgba(99,102,241,.14),transparent 30%),linear-gradient(180deg,#F8FBFF,#EDF4FF)}.page-social .subpage-hero{background:radial-gradient(circle at 20% 0,rgba(34,211,197,.16),transparent 32%),linear-gradient(180deg,#F8FFFE,#EEF7FF)}.page-match .tag-wall span:nth-child(3n){transform:translateY(5px)}.page-chat .message-stack{padding:18px;border-radius:24px;background:#fff;border:1px solid var(--line)}.page-community .topic-row:nth-child(odd){padding-left:12px}.page-discover .section.alt{background:linear-gradient(135deg,#EEF7FF,#F6F2FF)}.page-activity .timeline{margin-top:14px}.page-app .image-frame{background:linear-gradient(145deg,#EAF7FF,#E8FCFA)}.page-safety .subpage-hero,.page-privacy .subpage-hero{background:linear-gradient(135deg,#EFF8FF,#F4FBFF 60%,#EAFBF9)}.page-responsible .notice-box{background:linear-gradient(135deg,#17344C,#1B5261)}
@media (max-width:980px){.nav-core{display:none}.mobile-menu-btn{display:flex;order:-1}.desktop-menu-btn{display:none}.header-inner{min-height:66px;padding:0 14px}.site-logo strong{display:none}.header-actions{margin-left:auto}.hero-inner,.editorial,.editorial.reverse,.subpage-hero .wrap,.split-note,.policy-grid{grid-template-columns:1fr}.editorial.reverse .visual,.editorial.reverse .copy{order:initial}.hero-visual{min-height:0}.hero-visual .hero-chip{left:3%;top:6%}.highlight-grid{grid-template-columns:repeat(2,1fr)}.highlight-item:nth-child(3){border-left:0;border-top:1px solid var(--line)}.highlight-item:nth-child(4){border-top:1px solid var(--line)}.grid-4,.service-route{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}.review-grid{columns:2}.footer-inner{grid-template-columns:1fr}.footer-links{grid-template-columns:repeat(2,1fr)}.subpage-hero .image-frame{margin:0;max-width:680px}}
@media (max-width:640px){body{padding-bottom:64px}.section{padding:58px 0}.section.tight{padding:42px 0}.container{padding:0 16px}.hero-inner{padding:48px 16px 56px;gap:30px}.hero-copy h1{font-size:48px}.hero-subtitle{font-size:22px}.hero-visual .hero-float{width:45%;right:0}.highlight-strip{margin-top:-15px}.highlight-grid{padding:0;grid-template-columns:1fr;border-radius:0;border-left:0;border-right:0}.highlight-item+.highlight-item,.highlight-item:nth-child(3),.highlight-item:nth-child(4){border-left:0;border-top:1px solid var(--line)}.grid-2,.grid-3,.grid-4,.service-route{grid-template-columns:1fr}.review-grid{columns:1}.section-head{display:block}.section-head .text-link{display:inline-block;margin-top:8px}.card,.info-card,.review-card{padding:21px}.subpage-hero{padding:44px 0 32px}.subpage-hero .wrap{padding:0 16px;gap:26px}.footer-inner{padding:0 16px 34px}.footer-links{grid-template-columns:1fr 1fr;gap:18px}.footer-bottom{padding:16px 16px 18px;display:block}.footer-bottom span{display:block;margin-bottom:4px}.mobile-bottom-nav{display:grid;position:fixed;z-index:9998;left:0;right:0;bottom:0;grid-template-columns:repeat(4,1fr);background:rgba(10,24,42,.96);backdrop-filter:blur(14px);border-top:1px solid rgba(255,255,255,.08);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom-nav a{color:#DCEAF7;text-align:center;padding:13px 6px;font-size:12px}.header-actions .main-btn{padding:8px 13px;font-size:12px}.channel-pill{border-radius:18px;align-items:flex-start;flex-direction:column;gap:2px}.channel-pill small{line-height:1.5}.hero-actions{gap:8px}.hero-actions a{width:100%}.mini-stats{gap:16px}.site-drawer{width:88vw}}