:root{--blue:#1478F2;--blue2:#2F8CFF;--deep:#075DC9;--ink:#172033;--text:#3E4859;--muted:#6F7A89;--soft:#98A1AF;--alt:#F7FAFF;--sky:#EDF5FF;--gray:#F5F6F8;--gborder:rgba(30,50,70,.08);--shadow:0 14px 38px rgba(21,67,118,.08);--bshadow:0 16px 42px rgba(20,120,242,.15);--max:1280px;--nav:74px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;overflow-x:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}.skip-link{position:fixed;left:14px;top:-80px;z-index:9999;background:#fff;padding:10px 14px;border-radius:10px;box-shadow:var(--shadow)}.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;z-index:900;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--gborder)}.nav-shell{height:var(--nav);max-width:var(--max);margin:auto;padding:0 24px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:10px;min-width:max-content}.brand-logo{display:block;max-width:148px;max-height:36px;width:auto;height:auto}.brand-text{font-size:22px;font-weight:800;color:var(--blue)}.brand-tag{font-size:12px;color:var(--blue);background:var(--sky);padding:4px 9px;border-radius:999px}.primary-nav{display:flex;align-items:center;justify-content:center;gap:3px;flex:1;min-width:0}.nav-link,.icon-link,.icon-btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 12px;border-radius:12px;color:#465267;font-weight:650;white-space:nowrap;border:0;background:transparent;cursor:pointer}.nav-link:hover,.icon-link:hover,.icon-btn:hover,.nav-link.is-active,.icon-link.is-active{background:var(--sky);color:var(--blue)}.nav-link.is-active{box-shadow:inset 0 -2px var(--blue)}.nav-actions{display:flex;gap:3px}.mobile-nav{display:none;height:64px;padding:0 15px;align-items:center;justify-content:space-between}.mobile-brand{position:absolute;left:50%;transform:translateX(-50%);max-width:48vw;display:flex;justify-content:center}
.site-main{min-height:65vh}.wrap{max-width:var(--max);margin:auto;padding:0 24px}.section{padding:76px 0}.section.alt{background:var(--alt)}.section.sky{background:var(--sky)}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-weight:750;font-size:14px}.eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--blue)}h1,h2,h3{color:var(--ink);line-height:1.25;margin-top:0}h1{font-size:clamp(34px,5vw,62px);letter-spacing:-.04em}h2{font-size:clamp(27px,3vw,40px)}h3{font-size:20px}.lead{font-size:18px;color:#566277;max-width:860px}.muted{color:var(--muted)}.btn{display:inline-flex;min-height:46px;align-items:center;justify-content:center;padding:0 18px;border-radius:13px;background:linear-gradient(135deg,#3A96FF 0%,#1478F2 55%,#0863D3 100%);color:#fff;font-weight:750;box-shadow:var(--bshadow)}.text-link{color:var(--blue);font-weight:700}.btn:hover{transform:translateY(-1px)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(20,120,242,.28);outline-offset:3px}
.hero-editor{padding:56px 0 30px}.hero-grid{display:grid;grid-template-columns:.95fr 1.35fr .85fr;gap:22px;align-items:stretch}.hero-intro,.hero-banner,.hero-side,.card,.feature,.topic-main,.story-main,.principle,.route-step,.qa-row,.guide-row,.notice-row,.support-card,.content-card{border:1px solid var(--gborder);border-radius:18px;background:#fff;box-shadow:var(--shadow)}.hero-intro{padding:30px}.hero-intro h1{font-size:clamp(32px,4vw,52px)}.hero-banner{overflow:hidden;min-height:420px;background:linear-gradient(145deg,#D9EAFE,#F7FAFF);display:flex;align-items:center;justify-content:center}.hero-banner img{width:100%;height:100%;object-fit:contain}.visual-fallback{padding:42px;text-align:center;color:var(--deep)}.visual-fallback strong{display:block;font-size:clamp(28px,5vw,56px);color:var(--blue)}.hero-side{padding:22px}.mini-entry{display:block;padding:16px 2px;border-bottom:1px solid var(--gborder)}.mini-entry:last-child{border-bottom:0}.mini-entry b{display:block;color:var(--ink)}.mini-entry span{font-size:14px;color:var(--muted)}.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:24px}.channel-strip{border-top:1px solid var(--gborder);border-bottom:1px solid var(--gborder)}.channel-list{max-width:var(--max);margin:auto;padding:0 24px;display:flex;gap:34px;overflow-x:auto;overscroll-behavior-inline:contain}.channel-list a{padding:16px 0;white-space:nowrap}.channel-list a:before{content:"•";color:var(--blue);margin-right:7px}.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:28px}.section-head p{max-width:700px;margin:0}
.overview-grid{display:grid;grid-template-columns:1.15fr .85fr 1fr 1.25fr;gap:16px}.feature{padding:22px;min-height:180px}.discussion-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}.topic-main{padding:30px;background:linear-gradient(150deg,#fff,#EDF5FF)}.topic-list{display:grid;gap:12px}.topic-list a,.masonry a,.interest-chip,.city-node{display:block;border:1px solid var(--gborder);background:#fff;border-radius:15px;padding:18px}.city-map{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}.city-node:nth-child(1){grid-column:span 5}.city-node:nth-child(2){grid-column:span 7}.city-node:nth-child(3),.city-node:nth-child(4),.city-node:nth-child(5){grid-column:span 4}.city-node:nth-child(6){grid-column:span 12}.life-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:15px}.life-card{border:1px solid var(--gborder);border-radius:18px;padding:20px;background:#fff;box-shadow:var(--shadow);grid-column:span 4}.life-card:nth-child(1),.life-card:nth-child(5){grid-column:span 5}.life-card:nth-child(2),.life-card:nth-child(6){grid-column:span 7}.tag{display:inline-block;font-size:12px;color:var(--blue);background:var(--sky);border-radius:999px;padding:3px 9px;margin-bottom:9px}.route{display:flex;gap:14px;overflow-x:auto;padding-bottom:8px}.route-step{min-width:290px;max-width:350px;padding:21px}.interest-wall{display:flex;flex-wrap:wrap;gap:14px}.interest-chip{flex:1 1 230px}.interest-chip:nth-child(3n){flex-basis:330px}.qa-list,.guide-list,.notice-list{display:grid;gap:13px}.qa-row,.guide-row,.notice-row{padding:22px;display:grid;grid-template-columns:minmax(180px,.72fr) 1.4fr auto;gap:18px;align-items:start}.story-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}.story-main{padding:30px}.story-list{display:grid;gap:12px}.masonry{columns:3 260px;column-gap:16px}.masonry a{break-inside:avoid;margin-bottom:16px}.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.principle{padding:22px}.app-showcase{display:grid;grid-template-columns:.85fr 1.15fr;gap:30px;align-items:center}.app-visual{border-radius:24px;background:var(--sky);padding:22px;min-height:420px;display:flex;align-items:center;justify-content:center}.app-visual img{max-width:100%;max-height:560px;object-fit:contain}.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.service-grid .card{padding:18px}.safety-pair{display:grid;grid-template-columns:1fr 1fr;gap:22px}.support-card{padding:30px}.support-card:nth-child(2){margin-top:36px}.faq{display:grid;gap:12px}.faq details{border:1px solid var(--gborder);border-radius:14px;padding:16px 18px;background:#fff}.faq summary{cursor:pointer;font-weight:750;color:var(--ink)}.brand-manifesto{border-radius:24px;background:#0f63c9;color:#eef6ff;padding:46px}.brand-manifesto h2{color:#fff}
.page-hero{padding:70px 0 38px;background:linear-gradient(180deg,var(--alt),#fff)}.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.content-card{border-top:3px solid var(--blue);padding:22px}.index-list{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.index-list a{padding:18px;border-radius:14px;background:var(--alt);border:1px solid var(--gborder)}.article-list{display:grid;gap:24px}.article-item{padding-bottom:24px;border-bottom:1px solid var(--gborder)}.steps{counter-reset:step;display:grid;gap:14px}.step{position:relative;padding:20px 20px 20px 72px;background:var(--alt);border-radius:16px}.step:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:20px;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--blue);color:#fff;font-weight:800}
.site-footer{background:#0B1F38;color:#EAF3FF;padding:56px 0 calc(26px + env(safe-area-inset-bottom))}.footer-inner{max-width:var(--max);margin:auto;padding:0 24px}.footer-brand{max-width:720px}.footer-logo{max-width:150px;max-height:40px;display:block}.footer-brand strong{display:block;font-size:24px;color:#fff}.footer-brand span{font-size:12px;letter-spacing:.12em;color:#acd3ff}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin:34px 0}.footer-links h2{font-size:15px;color:#fff}.footer-links a{display:block;color:#c6d8eb;padding:4px 0}.footer-note,.copyright{color:#aebfd1;font-size:14px}
.overlay{position:fixed;inset:0;background:rgba(11,31,56,.38);z-index:950;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.mega-menu,.search-panel{position:fixed;left:0;right:0;top:var(--nav);z-index:1000;background:#fff;box-shadow:0 24px 60px rgba(10,40,80,.18);visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-12px);transition:.22s}.mega-menu.is-open,.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:none}.mega-menu{max-height:calc(100vh - var(--nav));overflow:auto;padding:22px max(24px,calc((100vw - var(--max))/2)) 30px}.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.close-btn{min-width:44px;min-height:44px;border:1px solid var(--gborder);border-radius:12px;background:#fff;cursor:pointer}.menu-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.menu-grid h2{font-size:15px}.menu-grid a{display:block;padding:11px 0;border-bottom:1px solid var(--gborder)}.menu-grid b,.menu-grid span{display:block}.menu-grid span,.search-grid span{font-size:13px;color:var(--muted)}.search-panel{padding:24px max(24px,calc((100vw - var(--max))/2)) 34px;max-height:calc(100vh - var(--nav));overflow:auto}.search-inner input{width:100%;height:54px;border:1px solid rgba(20,120,242,.25);border-radius:14px;padding:0 16px}.search-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:16px}.search-grid a{padding:16px;border:1px solid var(--gborder);border-radius:14px}.search-grid b,.search-grid span{display:block}.bottom-nav{display:none}.panel-open{overflow:hidden}
@media(max-width:1050px){.brand-tag{display:none}.primary-nav{gap:0}.nav-link{padding:0 8px;font-size:14px}.hero-grid{grid-template-columns:1fr 1.25fr}.hero-side{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,1fr)}.overview-grid{grid-template-columns:1fr 1fr}.principles{grid-template-columns:1fr 1fr}.search-grid{grid-template-columns:1fr 1fr}}
@media(max-width:760px){:root{--nav:64px}.desktop-nav{display:none}.mobile-nav{display:flex}.wrap,.channel-list,.footer-inner{padding-left:15px;padding-right:15px}.section{padding:54px 0}.hero-editor{padding:34px 0 20px}.hero-grid{grid-template-columns:1fr}.hero-intro{order:1;padding:22px}.hero-banner{order:2;min-height:230px}.hero-side{order:3;grid-column:auto;grid-template-columns:1fr 1fr}.hero-intro h1{font-size:38px}.overview-grid,.discussion-grid,.story-grid,.content-grid,.app-showcase,.safety-pair{grid-template-columns:1fr}.city-map,.life-grid{grid-template-columns:1fr}.city-node:nth-child(n),.life-card:nth-child(n){grid-column:auto}.qa-row,.guide-row,.notice-row{grid-template-columns:1fr;gap:8px}.masonry{columns:1}.principles{grid-template-columns:1fr}.service-grid{grid-template-columns:1fr 1fr}.index-list{grid-template-columns:1fr 1fr}.support-card:nth-child(2){margin-top:0}.section-head{display:block}.footer-links{grid-template-columns:1fr 1fr}.mega-menu{top:0;bottom:0;left:auto;width:min(88vw,390px);max-height:none;padding:18px;transform:translateX(105%)}.mega-menu.is-open{transform:none}.menu-grid{grid-template-columns:1fr}.search-panel{top:0;bottom:0;max-height:none;padding:18px;transform:translateY(-100%)}.search-grid{grid-template-columns:1fr}.bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:880;display:grid;grid-template-columns:repeat(5,1fr);background:rgba(255,255,255,.98);border-top:1px solid var(--gborder);padding-bottom:env(safe-area-inset-bottom)}.bottom-nav a{min-height:54px;display:grid;place-items:center;font-size:13px;color:var(--muted)}.bottom-nav a.is-active{color:var(--blue);font-weight:800}.site-footer{padding-bottom:calc(88px + env(safe-area-inset-bottom))}.route-step{min-width:82vw}.brand-manifesto{padding:30px 22px}}
@media(max-width:430px){.hero-side,.overview-grid,.service-grid,.index-list,.footer-links{grid-template-columns:1fr}.btn{width:100%}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.section.compact{padding-top:30px;padding-bottom:50px}
@media(max-width:760px){.faq-grid{grid-template-columns:1fr}}
.mobile-menu-search{display:none;width:100%;min-height:46px;margin:0 0 14px;border:1px solid rgba(20,120,242,.18);border-radius:12px;background:#EDF5FF;color:#1478F2;font-weight:750;cursor:pointer}
@media(max-width:760px){.mobile-menu-search{display:block}}