*{box-sizing:border-box}
:root{
  --paper:#F4F1E8;
  --paper-2:#ECE8DD;
  --white:#FFFDF7;
  --ink:#111111;
  --text:#1D1D1D;
  --muted:#62605B;
  --soft:#89867E;
  --acid:#D7FF32;
  --acid-2:#B9F227;
  --blue:#2457FF;
  --orange:#FF5938;
  --dark:#161616;
  --line:rgba(17,17,17,.22);
  --strong:rgba(17,17,17,.72);
}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
  line-height:1.78;
  overflow-x:hidden;
}
body.menu-open{overflow:hidden}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
button,input,textarea,select{font:inherit}
.site-header{
  position:sticky;top:0;width:100%;z-index:9999;
  background:rgba(244,241,232,.96);
  border-bottom:1px solid var(--strong);
}
.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;gap:10px;text-decoration:none;min-width:175px}
.site-logo img{max-height:44px;width:auto}
.site-logo strong{font-size:20px;letter-spacing:-.03em}
.nav-core{display:flex;align-items:center;gap:24px;white-space:nowrap}
.nav-core a{
  color:var(--ink);text-decoration:none;padding:8px 2px;border-bottom:2px solid transparent;
  font-size:15px;font-weight:650
}
.nav-core a:hover,.nav-core a.active{border-bottom-color:var(--ink)}
.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:10px 18px;
  text-decoration:none;border:1px solid var(--ink);border-radius:4px;font-weight:750;
}
.main-btn{background:var(--ink);color:#fff}
.main-btn:hover{background:var(--acid);color:var(--ink)}
.outline-btn{background:transparent;color:var(--ink)}
.outline-btn:hover{background:var(--ink);color:#fff}
.text-link{color:var(--blue);font-weight:700;text-decoration:none;border-bottom:1px solid currentColor}
.menu-toggle{width:44px;height:44px;border:1px solid var(--ink);background:transparent;padding:10px;cursor:pointer;display:flex;flex-direction:column;justify-content:center;gap:5px}
.menu-toggle span{display:block;height:2px;background:var(--ink)}
.menu-toggle span:nth-child(2){width:70%}
.mobile-menu-toggle{display:none}
.site-drawer{
  position:fixed;top:0;right:0;width:min(520px,92vw);height:100vh;z-index:10002;
  background:var(--ink);color:var(--paper);transform:translateX(100%);transition:transform .22s ease;
  overflow-y:auto;padding:26px
}
.site-drawer.open{transform:translateX(0)}
.drawer-overlay{position:fixed;inset:0;background:rgba(0,0,0,.56);z-index:10001;opacity:0;transition:opacity .22s ease}
.drawer-overlay.show{opacity:1}
.drawer-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.3)}
.drawer-brand{display:block;font-size:34px;line-height:1.1;margin-top:8px}
.drawer-close{width:46px;height:46px;border:1px solid rgba(255,255,255,.65);background:transparent;color:#fff;font-size:30px;line-height:1;cursor:pointer}
.drawer-nav{display:grid;grid-template-columns:1fr 1fr}
.drawer-nav a{display:flex;gap:12px;align-items:baseline;padding:14px 4px;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.18);font-size:20px}
.drawer-nav a span{font-size:11px;color:var(--acid)}
.drawer-nav a:hover{color:var(--acid)}
main{min-height:60vh}
.container{max-width:1280px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding-top:96px;padding-bottom:96px}
.section-tight{padding-top:56px;padding-bottom:56px}
.section-dark{background:var(--dark);color:var(--paper)}
.section-blue{background:#E5EAFF}
.section-acid{background:#F1F8C9}
.section-white{background:var(--white)}
.editorial-block{border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;text-transform:uppercase;letter-spacing:.14em;font-size:12px;font-weight:800;color:var(--muted)}
.eyebrow.light{color:#DAD6CB}
.section-index{color:var(--blue);font-weight:800;font-size:14px;letter-spacing:.05em}
.accent-label{display:inline-block;background:var(--acid);color:var(--ink);padding:4px 8px;font-size:12px;font-weight:800;letter-spacing:.06em}
h1,h2,h3,.section-title{color:var(--ink);margin-top:0}
.section-dark h1,.section-dark h2,.section-dark h3{color:#fff}
h1{font-size:clamp(46px,8vw,100px);line-height:.95;letter-spacing:-.055em;margin-bottom:28px}
h2,.section-title{font-size:clamp(32px,5vw,56px);line-height:1.02;letter-spacing:-.04em;margin-bottom:24px}
h3{font-size:clamp(22px,3vw,30px);line-height:1.16;letter-spacing:-.025em}
p{font-size:17px;margin:0 0 18px}
.lead{font-size:clamp(20px,2.2vw,28px);line-height:1.55}
.meta{font-size:14px;color:var(--muted)}
.hero{padding:64px 0 42px;border-bottom:1px solid var(--ink)}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px;align-items:start}
.hero-copy{grid-column:1/7}
.hero-visual{grid-column:7/13;border:1px solid var(--ink);background:var(--white);padding:10px;position:relative}
.hero-visual img{width:100%;object-fit:contain}
.hero-stamp{position:absolute;right:12px;bottom:12px;background:var(--acid);color:var(--ink);padding:7px 9px;font-size:11px;font-weight:900;letter-spacing:.12em}
.hero-kicker{display:flex;gap:14px;align-items:center;margin-bottom:38px}
.hero-kicker .big-no{font-size:48px;line-height:1;color:var(--blue);font-weight:900}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}
.hero-points{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--ink);margin-top:34px}
.hero-points span{padding:13px 10px 0 0;font-size:14px;font-weight:700}
.info-ribbon{border-bottom:1px solid var(--ink)}
.info-ribbon-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.ribbon-item{padding:26px 22px;border-right:1px solid var(--ink)}
.ribbon-item:last-child{border-right:0}
.ribbon-item .no{display:block;color:var(--blue);font-weight:850}
.ribbon-item h2{font-size:24px;margin:12px 0}
.ribbon-item p{font-size:15px;margin:0}
.index-grid{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--ink)}
.index-item{display:grid;grid-template-columns:100px 1fr 30px;gap:18px;align-items:center;padding:24px 0;border-bottom:1px solid var(--ink)}
.index-item:nth-child(odd){padding-right:26px;border-right:1px solid var(--ink)}
.index-item:nth-child(even){padding-left:26px}
.index-no{color:var(--blue);font-weight:850;font-size:13px}
.index-item h3{font-size:22px;margin:0 0 4px}
.index-item p{font-size:14px;margin:0;color:var(--muted)}
.index-item a{text-decoration:none;font-size:20px}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.split.reverse{grid-template-columns:.9fr 1.1fr}
.media-frame{border:1px solid var(--ink);padding:8px;background:var(--white)}
.media-frame.dark{background:#222;border-color:#fff}
.media-frame img{width:100%;object-fit:contain}
.number-list{border-top:1px solid var(--ink);margin-top:28px}
.number-list .row{display:grid;grid-template-columns:58px 1fr;gap:16px;padding:15px 0;border-bottom:1px solid var(--line)}
.number-list .row strong{color:var(--blue)}
.number-list .row p{margin:0;font-size:15px}
.feature-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:0;border:1px solid var(--ink)}
.feature-pane{padding:34px}
.feature-pane.dark{background:var(--dark);color:#fff}
.feature-pane.dark h2,.feature-pane.dark h3{color:#fff}
.feature-pane + .feature-pane{border-left:1px solid var(--ink)}
.feature-pane img{margin:24px 0;border:1px solid currentColor}
.points{display:grid;gap:10px;margin-top:20px}
.point{padding:12px 0;border-top:1px solid currentColor;font-size:15px}
.tri-grid{display:grid;grid-template-columns:1.05fr .8fr 1.15fr;border:1px solid var(--ink)}
.tri-card{padding:28px;border-right:1px solid var(--ink)}
.tri-card:last-child{border-right:0}
.tri-card img{margin:22px 0}
.notice-list{list-style:none;padding:0;margin:20px 0 0}
.notice-list li{display:grid;grid-template-columns:72px 1fr;gap:12px;padding:12px 0;border-top:1px solid var(--line)}
.notice-list time{font-weight:850;color:var(--blue)}
.safety-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.safety-panel{border:1px solid rgba(255,255,255,.32);padding:26px}
.safety-panel img{margin-bottom:22px;border:1px solid rgba(255,255,255,.55)}
.safety-panel .accent-label{margin-bottom:16px}
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--ink)}
.review{padding:28px 30px 28px 0;border-bottom:1px solid var(--ink);min-height:180px}
.review:nth-child(even){padding-left:30px;padding-right:0;border-left:1px solid var(--ink)}
.review:nth-child(3n){background:#F1F8C9;padding-left:20px}
.review .quote-no{font-size:38px;line-height:1;color:var(--blue);font-weight:900}
.review p{font-size:18px;margin-top:18px}
.faq-list{border-top:1px solid var(--ink)}
.faq-list details{border-bottom:1px solid var(--ink);padding:18px 0}
.faq-list summary{cursor:pointer;font-size:18px;font-weight:800;display:flex;gap:18px;align-items:flex-start;list-style:none}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary span{color:var(--blue);font-size:13px;min-width:34px}
.faq-list details p{margin:16px 0 0 52px;max-width:900px;color:var(--muted)}
.page-hero{padding:70px 0 52px;border-bottom:1px solid var(--ink)}
.page-hero-grid{display:grid;grid-template-columns:1fr .72fr;gap:48px;align-items:end}
.page-hero h1{font-size:clamp(52px,8vw,94px)}
.page-hero .side-note{border-top:1px solid var(--ink);padding-top:20px}
.page-image-strip{margin-top:34px;border:1px solid var(--ink);padding:8px;background:var(--white)}
.page-image-strip img{width:100%;max-height:620px;object-fit:contain}
.content-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:54px}
.content-aside{position:sticky;top:100px;align-self:start}
.content-aside ul{list-style:none;padding:0;margin:18px 0 0;border-top:1px solid var(--ink)}
.content-aside li{border-bottom:1px solid var(--line);padding:10px 0}
.content-body article{padding-bottom:42px;margin-bottom:42px;border-bottom:1px solid var(--ink)}
.content-body article:last-child{margin-bottom:0}
.content-body p{font-size:17px}
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--ink);border-left:1px solid var(--ink)}
.topic{padding:24px;border-right:1px solid var(--ink);border-bottom:1px solid var(--ink);min-height:220px}
.topic .no{color:var(--blue);font-weight:900;font-size:13px}
.topic h3{margin:20px 0 12px}
.topic p{font-size:15px;color:var(--muted)}
.steps{counter-reset:steps;border-top:1px solid var(--ink)}
.step{display:grid;grid-template-columns:100px 1fr;gap:24px;padding:26px 0;border-bottom:1px solid var(--ink)}
.step-no{font-size:38px;font-weight:900;color:var(--blue)}
.timeline{border-left:1px solid var(--ink);padding-left:30px;margin-left:16px}
.timeline article{position:relative;padding:0 0 38px 22px}
.timeline article:before{content:"";position:absolute;left:-36px;top:7px;width:10px;height:10px;background:var(--acid);border:1px solid var(--ink)}
.timeline .date{color:var(--blue);font-weight:900;font-size:13px}
.service-table{border-top:1px solid var(--ink)}
.service-row{display:grid;grid-template-columns:180px 1fr;gap:26px;padding:20px 0;border-bottom:1px solid var(--ink)}
.service-row strong{font-size:18px}
.callout{padding:28px;border:1px solid var(--ink);background:#F1F8C9;margin:30px 0}
.callout.blue{background:#E5EAFF}
.callout.dark{background:var(--dark);color:#fff;border-color:var(--dark)}
.callout.dark h2,.callout.dark h3{color:#fff}
.app-showcase{display:grid;grid-template-columns:.8fr 1.2fr;gap:52px;align-items:start}
.phone-frame{background:var(--white);border:1px solid var(--ink);padding:12px;max-width:520px}
.phone-frame img{width:100%;object-fit:contain}
.app-index{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--ink)}
.app-index article{padding:20px 18px 20px 0;border-bottom:1px solid var(--ink)}
.app-index article:nth-child(even){padding-left:18px;border-left:1px solid var(--ink)}
.app-index strong{display:block;color:var(--blue);font-size:12px}
.app-index h3{font-size:21px;margin:7px 0}
.app-index p{font-size:15px;margin:0;color:var(--muted)}
.download-flow{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--ink)}
.download-flow article{padding:26px;border-right:1px solid var(--ink)}
.download-flow article:last-child{border-right:0}
.download-flow strong{font-size:42px;line-height:1;color:var(--blue)}
.contact-options{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--ink)}
.contact-options article{padding:24px 24px 24px 0;border-bottom:1px solid var(--ink)}
.contact-options article:nth-child(even){padding-left:24px;border-left:1px solid var(--ink)}
.site-footer{background:var(--ink);color:var(--paper);padding:72px 0 96px}
.footer-inner{max-width:1280px;margin:0 auto;padding:0 24px}
.footer-brand-block{display:grid;grid-template-columns:1fr 1.3fr;gap:40px;align-items:end;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.35)}
.footer-wordmark{grid-column:1/-1;font-size:clamp(54px,9vw,120px);font-weight:900;line-height:.88;letter-spacing:-.07em}
.footer-brand-block p{color:#CFCBC1;max-width:650px}
.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;padding:38px 0;border-bottom:1px solid rgba(255,255,255,.35)}
.footer-links h2{font-size:15px;color:var(--acid);letter-spacing:.08em}
.footer-links a{display:block;color:var(--paper);text-decoration:none;padding:4px 0}
.footer-links a:hover{color:var(--acid)}
.footer-notice{padding-top:34px;max-width:1000px}
.footer-notice strong{color:var(--acid)}
.footer-notice p{font-size:14px;color:#CFCBC1}
.mobile-bottom-nav{display:none}

@media (max-width:1040px){
  .nav-core{gap:14px}
  .nav-core a{font-size:14px}
  .site-logo{min-width:auto}
  .site-logo strong{display:none}
}
@media (max-width:860px){
  body{padding-bottom:62px}
  .header-inner{min-height:64px;padding:0 16px}
  .nav-core,.desktop-menu-toggle{display:none}
  .mobile-menu-toggle{display:flex}
  .site-logo{position:absolute;left:50%;transform:translateX(-50%)}
  .site-logo img{max-height:38px}
  .header-cta{padding:8px 11px;min-height:40px;font-size:13px}
  .header-actions{margin-left:auto}
  .drawer-nav{grid-template-columns:1fr}
  .container{padding-left:18px;padding-right:18px}
  .section{padding-top:64px;padding-bottom:64px}
  .section-tight{padding-top:40px;padding-bottom:40px}
  .hero{padding-top:42px}
  .hero-grid,.page-hero-grid,.split,.split.reverse,.content-grid,.app-showcase{grid-template-columns:1fr}
  .hero-copy,.hero-visual{grid-column:auto}
  .hero-visual{margin-top:16px}
  .hero-points{grid-template-columns:1fr}
  .info-ribbon-grid{grid-template-columns:1fr 1fr}
  .ribbon-item{border-bottom:1px solid var(--ink)}
  .ribbon-item:nth-child(2){border-right:0}
  .index-grid,.feature-grid,.safety-grid,.review-grid,.contact-options{grid-template-columns:1fr}
  .index-item:nth-child(odd),.index-item:nth-child(even){padding-left:0;padding-right:0;border-right:0}
  .feature-pane + .feature-pane{border-left:0;border-top:1px solid var(--ink)}
  .tri-grid{grid-template-columns:1fr}
  .tri-card{border-right:0;border-bottom:1px solid var(--ink)}
  .tri-card:last-child{border-bottom:0}
  .review:nth-child(even){padding-left:0;border-left:0}
  .review,.review:nth-child(3n){padding:24px 0}
  .content-aside{position:static}
  .topic-grid{grid-template-columns:1fr 1fr}
  .service-row{grid-template-columns:1fr;gap:4px}
  .download-flow{grid-template-columns:1fr}
  .download-flow article{border-right:0;border-bottom:1px solid var(--ink)}
  .download-flow article:last-child{border-bottom:0}
  .footer-brand-block,.footer-links{grid-template-columns:1fr}
  .footer-wordmark{grid-column:auto}
  .mobile-bottom-nav{
    position:fixed;left:0;right:0;bottom:0;height:58px;z-index:9998;background:rgba(244,241,232,.98);
    border-top:1px solid var(--ink);display:grid;grid-template-columns:repeat(4,1fr)
  }
  .mobile-bottom-nav a{display:flex;align-items:center;justify-content:center;text-decoration:none;font-size:13px;font-weight:750}
  .mobile-bottom-nav a:hover{background:var(--acid)}
}
@media (max-width:560px){
  h1{font-size:clamp(42px,16vw,66px)}
  h2,.section-title{font-size:clamp(30px,11vw,44px)}
  p{font-size:16px}
  .hero-kicker{margin-bottom:22px}
  .hero-kicker .big-no{font-size:38px}
  .info-ribbon-grid{grid-template-columns:1fr}
  .ribbon-item{border-right:0}
  .index-item{grid-template-columns:68px 1fr 26px;gap:10px}
  .topic-grid{grid-template-columns:1fr}
  .step{grid-template-columns:70px 1fr}
  .app-index{grid-template-columns:1fr}
  .app-index article:nth-child(even){padding-left:0;border-left:0}
  .site-drawer{width:94vw;padding:20px}
  .drawer-brand{font-size:29px}
  .page-hero{padding-top:48px}
  .section{padding-top:54px;padding-bottom:54px}
}