*{box-sizing:border-box}
:root{
  --bg:#F5F8FC;
  --nav:rgba(10,24,42,.94);
  --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;
  --faint:#8C9AAA;
  --line:rgba(59,130,246,.14);
  --shadow:0 20px 50px rgba(29,78,119,.10);
  --radius:24px;
  --max:1240px;
}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;line-height:1.75;overflow-x:hidden}
body.menu-open{overflow:hidden}
a{color:#2563EB;text-decoration:none}
a:hover{text-decoration:none}
img{max-width:100%;height:auto;display:block}
button,a{outline-offset:3px}
button:focus-visible,a:focus-visible{outline:3px solid rgba(56,189,248,.45)}
.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 22px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.site-logo,.drawer-brand,.footer-logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.04em}
.site-logo{color:#fff;min-width:145px}
.site-logo img,.drawer-brand img,.footer-logo img{max-height:42px;width:auto}
.nav-core{display:flex;align-items:center;justify-content:center;gap:8px;flex:1}
.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;min-width:180px;justify-content:flex-end}
.main-btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 22px;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{transform:translateY(-1px);box-shadow:0 18px 38px rgba(37,99,235,.25)}
.main-btn.compact{padding:9px 17px;font-size:14px}
.secondary-btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(37,99,235,.25);color:#2563EB;border-radius:999px;padding:11px 20px;font-weight:700;background:rgba(255,255,255,.7)}
.text-link{display:inline-flex;gap:7px;align-items:center;font-weight:700}
.menu-toggle{width:42px;height:42px;border:0;background:rgba(255,255,255,.08);border-radius:13px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer}
.menu-toggle span{width:18px;height:2px;border-radius:2px;background:#EAF4FF}
.mobile-menu-toggle{display:none}
.site-main{min-height:70vh}
.container{width:min(var(--max),calc(100% - 44px));margin:0 auto}
.narrow{width:min(850px,calc(100% - 44px));margin:0 auto}
.section{padding:88px 0}
.section.tight{padding:58px 0}
.section-soft{background:linear-gradient(180deg,rgba(233,245,255,.78),rgba(245,248,252,.32))}
.section-cyan{background:linear-gradient(135deg,rgba(232,252,250,.95),rgba(238,247,255,.92))}
.section-deep{background:#12253A;color:#EAF4FF}
.section-deep h2,.section-deep h3{color:#fff}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
.section-head>div{max-width:760px}
.section-kicker,.tag,.label,.badge{color:#0284C7;font-weight:800;font-size:12px;letter-spacing:.14em;text-transform:uppercase}
.section-kicker{display:inline-flex;align-items:center;gap:8px;margin-bottom:10px}
.section-kicker:before{content:"";width:28px;height:2px;background:linear-gradient(90deg,#2563EB,#22D3C5)}
h1,h2,h3,.section-title{color:var(--title);line-height:1.2;margin-top:0}
h1{font-size:clamp(42px,7vw,78px);letter-spacing:-.04em;margin-bottom:20px}
h2{font-size:clamp(28px,4vw,44px);letter-spacing:-.025em;margin-bottom:16px}
h3{font-size:21px;margin-bottom:10px}
p{margin:0 0 16px}
.lead{font-size:18px;color:var(--muted);line-height:1.9}
.muted{color:var(--muted)}
.small{font-size:14px;color:var(--muted)}
.hero{position:relative;isolation:isolate;overflow:hidden;padding:72px 0 64px;background:
radial-gradient(circle at 84% 18%,rgba(56,189,248,.24),transparent 30%),
radial-gradient(circle at 18% 42%,rgba(34,211,197,.17),transparent 28%),
linear-gradient(135deg,#F9FCFF 0%,#EDF7FF 55%,#F5F0FF 100%)}
.hero:before{content:"";position:absolute;inset:0;z-index:-1;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:42px 42px;mask-image:linear-gradient(to bottom,#000,transparent)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.03fr) minmax(420px,.97fr);gap:56px;align-items:center}
.hero-copy{padding:20px 0}
.hero-eyebrow{display:inline-flex;gap:9px;align-items:center;padding:7px 12px;border:1px solid rgba(37,99,235,.12);background:rgba(255,255,255,.62);border-radius:999px;color:#2563EB;font-size:12px;font-weight:800;letter-spacing:.08em;margin-bottom:20px}
.hero-subtitle{font-size:clamp(21px,2.6vw,32px);font-weight:800;line-height:1.35;color:var(--deep);margin-bottom:18px}
.hero-copy .lead{max-width:700px}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:28px 0}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-points span{padding:8px 11px;border-radius:999px;background:rgba(255,255,255,.72);border:1px solid rgba(59,130,246,.13);font-size:13px;color:#3C5267}
.hero-visual{position:relative;min-height:470px;display:flex;align-items:center;justify-content:center}
.hero-main-image{width:min(100%,600px);border-radius:30px;box-shadow:0 30px 70px rgba(23,43,77,.17);border:1px solid rgba(255,255,255,.8)}
.hero-float{position:absolute;width:32%;max-width:180px;border-radius:22px;border:7px solid rgba(255,255,255,.82);box-shadow:0 20px 45px rgba(23,43,77,.18)}
.hero-float.one{left:-3%;bottom:5%}
.hero-float.two{right:-3%;top:1%}
.media-index{position:absolute;right:8%;bottom:4%;background:rgba(18,37,58,.9);color:#fff;border-radius:16px;padding:12px 15px;font-size:12px;letter-spacing:.12em}
.highlight-strip{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.highlight-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.highlight-item{padding:26px 24px;position:relative}
.highlight-item:not(:last-child):after{content:"";position:absolute;right:0;top:28%;height:44%;width:1px;background:var(--line)}
.highlight-no{font-size:12px;color:#38BDF8;font-weight:900;letter-spacing:.12em}
.highlight-item h3{font-size:17px;margin:6px 0}
.highlight-item p{font-size:13px;color:var(--muted);margin:0;line-height:1.7}
.channel-cloud{display:flex;flex-wrap:wrap;gap:12px}
.channel-pill{display:flex;align-items:center;gap:11px;padding:11px 15px;border-radius:999px;background:rgba(255,255,255,.74);border:1px solid var(--line);box-shadow:0 8px 20px rgba(29,78,119,.05)}
.channel-pill strong{color:var(--title)}
.channel-pill span{font-size:13px;color:var(--muted)}
.channel-pill:nth-child(3n+2){background:rgba(232,252,250,.76)}
.channel-pill:nth-child(3n){background:rgba(240,244,248,.86)}
.editorial-split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.editorial-split.reverse .visual{order:2}
.visual-stack{position:relative;padding:18px}
.visual-stack:before{content:"";position:absolute;inset:0 8% 8% 0;background:linear-gradient(135deg,#E9F5FF,#E8FCFA);border-radius:30px;transform:translate(-8px,18px);z-index:-1}
.content-img{max-width:100%;height:auto;object-fit:contain;border-radius:26px;box-shadow:var(--shadow)}
.image-pair{display:grid;grid-template-columns:1.2fr .8fr;gap:16px;align-items:end}
.image-pair img:nth-child(2){transform:translateY(25px)}
.copy-list{display:grid;gap:14px;margin:22px 0}
.copy-list .point{display:grid;grid-template-columns:38px 1fr;gap:12px;padding:14px 0;border-top:1px solid var(--line)}
.copy-list .point:last-child{border-bottom:1px solid var(--line)}
.point-no{font-weight:900;color:#38BDF8}
.dual-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.zone-card,.info-card,.review-card,.card{background:rgba(255,255,255,.9);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:22px}
.zone-card{padding:26px;overflow:hidden}
.zone-card.alt{background:linear-gradient(145deg,#EEF7FF,#fff)}
.zone-card.cyan{background:linear-gradient(145deg,#E8FCFA,#fff)}
.zone-card img{width:100%;height:auto;object-fit:contain;border-radius:20px;margin-bottom:22px}
.zone-card .mini-points{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}
.zone-card .mini-points span{font-size:12px;background:rgba(37,99,235,.07);color:#2563EB;border-radius:999px;padding:6px 10px}
.chat-layout{display:grid;grid-template-columns:.88fr 1.12fr;gap:26px}
.message-card{background:#12253A;color:#EAF4FF;border-radius:26px;padding:28px;overflow:hidden}
.message-card h2,.message-card h3{color:#fff}
.message-bubble{max-width:88%;padding:12px 15px;border-radius:18px;margin:11px 0;background:rgba(255,255,255,.1);font-size:14px}
.message-bubble.mine{margin-left:auto;background:rgba(56,189,248,.16);border:1px solid rgba(56,189,248,.2)}
.message-card img{margin-top:22px;border-radius:20px}
.topic-panel{background:#fff;border-radius:26px;padding:28px;border:1px solid var(--line)}
.topic-item{padding:16px 0;border-bottom:1px solid var(--line)}
.topic-item:last-child{border-bottom:0}
.topic-item span{color:#0284C7;font-size:12px;font-weight:800}
.triple-grid{display:grid;grid-template-columns:1.05fr .9fr 1.05fr;gap:22px}
.feature-column{border-radius:24px;padding:25px;border:1px solid var(--line);background:#fff}
.feature-column:nth-child(2){background:linear-gradient(180deg,#172B4D,#12253A);color:#DCEAF7}
.feature-column:nth-child(2) h3,.feature-column:nth-child(2) h2{color:#fff}
.feature-column:nth-child(3){background:linear-gradient(145deg,#E8FCFA,#F8FDFF)}
.feature-column img{border-radius:18px;margin:15px 0}
.notice-line{display:grid;grid-template-columns:58px 1fr;gap:12px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.notice-date{font-weight:900;color:#38BDF8}
.safety-grid{display:grid;grid-template-columns:.94fr 1.06fr;gap:30px;align-items:stretch}
.safety-visual{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:center}
.safety-visual img{border-radius:24px;box-shadow:var(--shadow)}
.safety-visual img:nth-child(2){transform:translateY(24px)}
.safety-copy{background:linear-gradient(145deg,#12253A,#173654);border-radius:28px;padding:34px;color:#EAF4FF}
.safety-copy h2,.safety-copy h3{color:#fff}
.security-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:22px}
.security-list div{padding:14px;border-radius:16px;background:rgba(255,255,255,.07);font-size:13px}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:start}
.review-card{padding:24px}
.review-card:nth-child(2),.review-card:nth-child(5){transform:translateY(18px)}
.review-card .quote{font-size:30px;line-height:1;color:#38BDF8}
.review-card p{font-size:15px;color:#41566A}
.review-role{font-size:12px;color:var(--faint);font-weight:700}
.faq-list{display:grid;gap:12px}
.faq-list details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:0 20px;box-shadow:0 8px 24px rgba(29,78,119,.05)}
.faq-list summary{cursor:pointer;list-style:none;padding:18px 34px 18px 0;color:var(--title);font-weight:800;position:relative}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:"＋";position:absolute;right:0;top:16px;color:#2563EB}
.faq-list details[open] summary:after{content:"－"}
.faq-list details p{padding:0 0 20px;color:var(--muted);margin:0}
.compliance-band{border-radius:30px;padding:34px;background:
radial-gradient(circle at 95% 0%,rgba(56,189,248,.25),transparent 30%),
linear-gradient(135deg,#172B4D,#0C1B2A);color:#DCEAF7}
.compliance-band h2{color:#fff}
.compliance-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center}
.compliance-items{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.compliance-items span{padding:12px 14px;background:rgba(255,255,255,.07);border-radius:14px;font-size:13px}
.site-footer{background:#0C1B2A;color:#EAF4FF;padding:64px 0 0}
.footer-inner{width:min(var(--max),calc(100% - 44px));margin:0 auto;display:grid;grid-template-columns:1fr 2.2fr;gap:60px}
.footer-logo{color:#fff;font-size:20px}
.footer-brand p{color:#AEC2D3;margin-top:20px;max-width:420px}
.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.footer-links h2{font-size:15px;color:#fff;margin-bottom:14px}
.footer-links a{display:block;color:#BFD1DF;font-size:13px;margin:8px 0}
.footer-links a:hover{color:#fff}
.footer-small{font-size:12px;color:#8EA7B9;margin-top:12px}
.footer-bottom{margin-top:48px;padding:18px max(22px,calc((100% - var(--max))/2));display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.08);color:#8EA7B9;font-size:12px}
.drawer-overlay{position:fixed;inset:0;background:rgba(6,18,31,.48);z-index:10000;opacity:0;pointer-events:none;transition:opacity .25s ease}
.drawer-overlay.show{opacity:1;pointer-events:auto}
.site-drawer{position:fixed;top:0;right:0;width:min(420px,92vw);height:100dvh;background:#0F2235;color:#EAF4FF;z-index:10001;transform:translateX(105%);transition:transform .28s ease;box-shadow:-30px 0 70px rgba(5,18,30,.26);padding:24px;overflow-y:auto}
.site-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:20px}
.drawer-brand{color:#fff;font-size:19px}
.drawer-close{width:40px;height:40px;border:0;border-radius:12px;background:rgba(255,255,255,.08);color:#fff;font-size:26px;cursor:pointer}
.drawer-intro{color:#AFC5D7;font-size:13px;margin:22px 0}
.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.drawer-nav a{display:flex;justify-content:space-between;align-items:center;padding:11px 12px;border-radius:12px;background:rgba(255,255,255,.045);color:#DCEAF7;font-size:14px}
.drawer-nav a:hover{background:rgba(56,189,248,.12);color:#fff}
.drawer-note{font-size:12px;color:#AFC5D7;border-top:1px solid rgba(255,255,255,.09);margin-top:24px;padding-top:20px}
.mobile-bottom-nav{display:none}
.inner-hero{padding:70px 0 56px;position:relative;overflow:hidden;background:linear-gradient(135deg,#F8FCFF,#EDF7FF 55%,#EEFDFB)}
.inner-hero:after{content:"";position:absolute;right:-10%;top:-50%;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle,rgba(56,189,248,.20),transparent 68%);pointer-events:none}
.inner-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.inner-hero h1{font-size:clamp(38px,6vw,64px)}
.inner-hero .hero-image{max-height:480px;margin:auto;object-fit:contain;border-radius:28px;box-shadow:var(--shadow)}
.breadcrumbs{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:20px}
.breadcrumbs a{color:#2563EB}
.metric-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.metric-chip{padding:8px 11px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.7);font-size:12px;color:#3F566B}
.prose-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:50px}
.sticky-label{position:sticky;top:110px;align-self:start}
.sticky-label .big-no{font-size:72px;font-weight:900;line-height:1;color:#D5E9FA}
.prose p{margin-bottom:20px;color:#3A4E60}
.prose h2{font-size:30px;margin-top:34px}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.service-card{padding:24px;border-radius:22px;background:#fff;border:1px solid var(--line);box-shadow:0 14px 32px rgba(29,78,119,.07)}
.service-card .number{font-size:12px;color:#38BDF8;font-weight:900;letter-spacing:.14em}
.service-card p{font-size:14px;color:var(--muted)}
.guide-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;counter-reset:step}
.guide-step{counter-increment:step;background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;position:relative}
.guide-step:before{content:"0" counter(step);display:block;color:#38BDF8;font-weight:900;font-size:13px;margin-bottom:24px}
.guide-step p{font-size:13px;color:var(--muted)}
.experience-quote{margin:0;padding:30px 34px;border-radius:24px;background:linear-gradient(135deg,#E9F5FF,#E8FCFA);border:1px solid var(--line);font-size:18px;color:#26445B}
.experience-quote footer{margin-top:12px;font-size:12px;color:#657789}
.info-band{display:grid;grid-template-columns:1fr 1fr;gap:26px;padding:30px;border-radius:26px;background:#fff;border:1px solid var(--line)}
.info-band .mini-list{display:grid;gap:10px}
.info-band .mini-list div{padding:12px 14px;background:#F5F8FC;border-radius:14px;font-size:13px}
.timeline{display:grid;gap:0}
.timeline-item{display:grid;grid-template-columns:100px 1fr;gap:20px;padding:24px 0;border-bottom:1px solid var(--line)}
.timeline-mark{font-size:13px;color:#0284C7;font-weight:900;letter-spacing:.08em}
.tag-cloud{display:flex;flex-wrap:wrap;gap:9px;margin:20px 0}
.tag-cloud span{padding:7px 11px;background:#EEF7FF;border:1px solid var(--line);border-radius:999px;color:#2563EB;font-size:12px}
.media-flow{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:start}
.media-flow .feature-media{grid-row:span 2}
.media-flow img{border-radius:24px;box-shadow:var(--shadow)}
.media-note{padding:22px;border:1px solid var(--line);background:#fff;border-radius:20px}
.dark-panel{padding:32px;border-radius:28px;background:#12253A;color:#DCEAF7}
.dark-panel h2,.dark-panel h3{color:#fff}
.app-panel{display:grid;grid-template-columns:.8fr 1.2fr;gap:38px;align-items:center;border-radius:30px;padding:38px;background:linear-gradient(145deg,#E9F5FF,#fff)}
.app-panel img{max-height:520px;margin:auto;object-fit:contain}
.notice-box{padding:22px 24px;border-left:4px solid #38BDF8;background:#EEF7FF;border-radius:0 18px 18px 0;color:#385165}
.page-social .inner-hero{background:linear-gradient(135deg,#F9FCFF,#E8FCFA)}
.page-chat .inner-hero,.page-safety .inner-hero{background:linear-gradient(135deg,#F6FAFF,#E8F4FF)}
.page-activity .inner-hero{background:linear-gradient(135deg,#F7FBFF,#F1F0FF)}
.page-privacy .inner-hero{background:linear-gradient(135deg,#F8FDFF,#E8FCFA)}
.page-about .inner-hero,.page-brand .inner-hero{background:linear-gradient(135deg,#FAFCFF,#EDF4FF)}
@media(max-width:1080px){
  .nav-core{gap:2px}.nav-core a{padding:8px 8px;font-size:14px}
  .hero-grid,.inner-hero-grid{grid-template-columns:1fr 1fr;gap:34px}
  .triple-grid{grid-template-columns:1fr 1fr}.triple-grid .feature-column:last-child{grid-column:span 2}
  .review-grid{grid-template-columns:1fr 1fr}.footer-inner{grid-template-columns:1fr}.footer-links{grid-template-columns:repeat(4,1fr)}
}
@media(max-width:860px){
  .nav-core,.desktop-menu-toggle{display:none}
  .mobile-menu-toggle{display:flex}
  .header-actions{min-width:auto}
  .site-logo{min-width:auto;position:absolute;left:50%;transform:translateX(-50%)}
  .site-logo span{display:none}
  .hero-grid,.inner-hero-grid,.editorial-split,.prose-grid,.safety-grid,.compliance-grid,.app-panel{grid-template-columns:1fr}
  .hero-visual{min-height:auto}
  .hero-float{display:none}
  .highlight-grid{grid-template-columns:1fr 1fr}
  .highlight-item:nth-child(2):after{display:none}
  .dual-grid,.chat-layout,.info-band{grid-template-columns:1fr}
  .service-grid{grid-template-columns:1fr 1fr}
  .guide-steps{grid-template-columns:1fr 1fr}
  .sticky-label{position:static}
  .editorial-split.reverse .visual{order:initial}
  .footer-links{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  body{padding-bottom:70px}
  .header-inner{padding:0 14px;min-height:64px}
  .main-btn.compact{padding:8px 13px;font-size:12px}
  .menu-toggle{width:38px;height:38px}
  .site-logo img{max-height:36px}
  .container,.narrow{width:min(100% - 28px,var(--max))}
  .hero{padding:46px 0}
  h1{font-size:44px}
  .hero-subtitle{font-size:22px}
  .hero .lead,.lead{font-size:16px}
  .section{padding:62px 0}.section.tight{padding:46px 0}
  .section-head{display:block;margin-bottom:24px}
  .highlight-grid{grid-template-columns:1fr}
  .highlight-item{padding:20px 14px}
  .highlight-item:after{display:none}
  .channel-cloud{gap:9px}
  .channel-pill{border-radius:18px;align-items:flex-start;flex-direction:column;gap:2px;width:calc(50% - 5px)}
  .channel-pill span{font-size:12px}
  .image-pair{grid-template-columns:1fr}
  .image-pair img:nth-child(2),.safety-visual img:nth-child(2),.review-card:nth-child(2),.review-card:nth-child(5){transform:none}
  .dual-grid,.triple-grid,.review-grid,.service-grid,.guide-steps{grid-template-columns:1fr}
  .triple-grid .feature-column:last-child{grid-column:auto}
  .safety-visual{grid-template-columns:1fr}
  .security-list,.compliance-items{grid-template-columns:1fr}
  .footer-links{grid-template-columns:1fr 1fr;gap:22px}
  .footer-bottom{display:block;text-align:center}
  .drawer-nav{grid-template-columns:1fr 1fr}
  .mobile-bottom-nav{position:fixed;left:10px;right:10px;bottom:8px;height:58px;display:grid;grid-template-columns:repeat(4,1fr);z-index:9000;background:rgba(12,27,42,.95);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.1);border-radius:20px;box-shadow:0 14px 30px rgba(7,20,33,.22);padding:6px}
  .mobile-bottom-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;color:#CDE0EE;font-size:10px;line-height:1.1;gap:4px}
  .mobile-bottom-nav a span{font-size:17px;color:#38BDF8}
  .inner-hero{padding:46px 0 38px}
  .inner-hero h1{font-size:38px}
  .inner-hero-grid{gap:28px}
  .media-flow{grid-template-columns:1fr}
  .media-flow .feature-media{grid-row:auto}
  .timeline-item{grid-template-columns:70px 1fr;gap:12px}
}
@media(max-width:420px){
  .channel-pill{width:100%}
  .drawer-nav{grid-template-columns:1fr}
  .footer-links{grid-template-columns:1fr}
}