:root{
    --bg:#FFFFFF;--bg-soft:#F7FAFF;--bg-blue:#EDF5FF;--bg-gray:#F5F6F8;
    --title:#172033;--text:#3E4859;--muted:#6F7A89;--light:#98A1AF;
    --blue:#1478F2;--blue-bright:#2F8CFF;--blue-deep:#075DC9;--blue-dark:#084A9C;
    --blue-soft:#D9EAFE;--white:#FFFFFF;--border:rgba(20,120,242,.12);
    --gray-border:rgba(30,50,70,.08);--shadow:0 14px 38px rgba(21,67,118,.08);
    --blue-shadow:0 16px 42px rgba(20,120,242,.15);
    --radius:18px;--max:1280px;--nav-h:74px;
}
*{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",Arial,sans-serif;line-height:1.72;overflow-x:hidden}
body.panel-open{overflow:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
a,button,input{outline:none}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(20,120,242,.28);outline-offset:3px}
.skip-link{position:fixed;left:16px;top:-80px;background:var(--blue);color:#fff;padding:10px 14px;border-radius:10px;z-index:120}
.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);backdrop-filter:blur(18px);border-bottom:1px solid var(--gray-border)}
.nav-shell{max-width:var(--max);height:var(--nav-h);margin:0 auto;padding:0 20px}
.desktop-nav{display:grid;grid-template-columns:minmax(235px,1fr) auto minmax(235px,1fr);align-items:center;gap:18px}
.brand-link{display:flex;align-items:center;gap:10px;min-width:0}
.brand-logo{width:auto;max-width:140px;max-height:42px;object-fit:contain}
.brand-text{display:inline-flex;align-items:center;background:var(--blue);color:#fff;font-weight:800;font-size:20px;letter-spacing:.02em;padding:7px 12px;border-radius:10px;line-height:1}
.brand-tag{font-size:12px;color:var(--blue-dark);background:var(--bg-blue);padding:4px 8px;border-radius:999px;white-space:nowrap}
.primary-nav{display:flex;align-items:center;justify-content:center;gap:2px;white-space:nowrap}
.primary-nav a,.nav-action-link{min-height:44px;display:inline-flex;align-items:center;padding:0 10px;border-radius:10px;color:var(--muted);font-size:14px;font-weight:650}
.primary-nav a:hover,.nav-action-link:hover{color:var(--blue);background:var(--bg-soft)}
.primary-nav a.is-current,.nav-action-link.is-current{color:var(--blue);background:var(--bg-blue)}
.nav-actions{display:flex;align-items:center;justify-content:flex-end;gap:4px;white-space:nowrap}
.icon-button{min-width:44px;min-height:44px;border:0;background:transparent;color:var(--muted);display:inline-flex;align-items:center;justify-content:center;gap:6px;border-radius:10px;padding:0 9px}
.icon-button:hover{background:var(--bg-soft);color:var(--blue)}
.action-label{font-size:13px}
.icon{position:relative;display:inline-block;width:18px;height:18px;flex:0 0 18px}
.icon-search:before{content:"";position:absolute;width:10px;height:10px;border:2px solid currentColor;border-radius:50%;left:1px;top:1px}
.icon-search:after{content:"";position:absolute;width:7px;height:2px;background:currentColor;transform:rotate(45deg);right:0;bottom:2px;border-radius:2px}
.icon-menu:before,.icon-menu:after{content:"";position:absolute;left:2px;width:14px;height:2px;background:currentColor;border-radius:2px}
.icon-menu:before{top:5px;box-shadow:0 4px 0 currentColor}
.icon-menu:after{top:13px}
.mobile-nav{display:none}
.site-main{min-height:55vh}
.section-shell{max-width:var(--max);margin:0 auto;padding:76px 20px}
.section-shell.compact{padding-top:40px;padding-bottom:40px}
.page-intro{max-width:var(--max);margin:0 auto;padding:58px 20px 12px}
.page-intro .eyebrow,.eyebrow{display:inline-block;color:var(--blue);font-weight:800;font-size:12px;letter-spacing:.12em;text-transform:uppercase}
.page-intro h1{font-size:clamp(34px,5vw,58px);line-height:1.1;margin:10px 0 20px;color:var(--title);letter-spacing:-.035em}
.page-intro p{max-width:830px;font-size:18px;color:var(--muted);margin:0}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:28px}
.section-heading h2{margin:4px 0 0;color:var(--title);font-size:clamp(26px,3vw,40px);line-height:1.18;letter-spacing:-.02em}
.section-heading p{max-width:620px;margin:0;color:var(--muted)}
.text-link{color:var(--blue);font-weight:750;display:inline-flex;align-items:center;gap:7px}
.text-link:after{content:"→";transition:transform .2s ease}
.text-link:hover:after{transform:translateX(3px)}
.primary-button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border-radius:12px;color:#fff;background:linear-gradient(135deg,#3A96FF 0%,#1478F2 55%,#0863D3 100%);box-shadow:var(--blue-shadow);font-weight:800}
.primary-button:hover{filter:brightness(.98);transform:translateY(-1px)}
.pill{display:inline-flex;align-items:center;background:var(--bg-blue);color:var(--blue-dark);padding:5px 10px;border-radius:999px;font-size:12px;font-weight:700}
.card{background:#fff;border:1px solid var(--gray-border);border-radius:var(--radius);box-shadow:var(--shadow)}
.soft-card{background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius)}

.info-panel{padding:24px;margin-top:24px}
.info-panel.wide-gap{margin-top:28px}
.info-panel h2{margin-top:0;color:var(--title)}
.spaced-actions{margin-top:28px}

/* Home editorial desk */
.home-editor{max-width:var(--max);margin:0 auto;padding:34px 20px 28px}
.editor-desk{display:grid;grid-template-columns:minmax(0,.82fr) minmax(420px,1.35fr) minmax(0,.78fr);gap:18px;align-items:stretch}
.editor-intro,.editor-side{border:1px solid var(--gray-border);border-radius:22px;padding:28px;background:#fff}
.editor-intro{display:flex;flex-direction:column;justify-content:space-between}
.editor-intro h1{font-size:clamp(32px,3.7vw,50px);line-height:1.08;color:var(--title);letter-spacing:-.04em;margin:14px 0 18px}
.editor-intro p{margin:0;color:var(--muted);font-size:15px}
.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:26px}
.editor-visual{position:relative;min-height:470px;border-radius:24px;overflow:hidden;background:linear-gradient(135deg,#E9F4FF 0%,#DCEEFF 52%,#F8FBFF 100%);border:1px solid var(--border);display:flex;align-items:center;justify-content:center}
.editor-visual img{width:100%;height:100%;object-fit:contain}
.visual-fallback{width:100%;height:100%;min-height:470px;padding:48px;display:flex;flex-direction:column;justify-content:space-between;background:
radial-gradient(circle at 15% 16%,rgba(47,140,255,.24),transparent 25%),
radial-gradient(circle at 88% 78%,rgba(20,120,242,.18),transparent 28%),
linear-gradient(145deg,#F7FBFF,#DDEEFF)}
.visual-badge{font-weight:850;color:var(--blue);letter-spacing:.11em;font-size:12px}
.visual-title{font-size:clamp(40px,6vw,80px);line-height:.95;letter-spacing:-.05em;color:var(--title);max-width:520px;font-weight:850}
.visual-notes{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.visual-notes span{background:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.85);border-radius:12px;padding:10px;color:var(--blue-dark);font-size:13px;font-weight:700}
.editor-side{display:flex;flex-direction:column;gap:10px}
.editor-side h2{margin:0 0 4px;font-size:18px;color:var(--title)}
.editor-portal{display:block;padding:15px 14px;border-radius:14px;background:var(--bg-soft);border:1px solid transparent}
.editor-portal:hover{border-color:var(--border);background:var(--bg-blue)}
.editor-portal strong{display:block;color:var(--title);margin-bottom:4px}
.editor-portal span{font-size:13px;color:var(--muted)}
.channel-strip-wrap{max-width:var(--max);margin:0 auto;padding:0 20px 10px}
.channel-strip{display:flex;align-items:center;gap:8px;overflow-x:auto;overscroll-behavior-x:contain;padding:8px 0 12px;scrollbar-width:thin}
.channel-strip a{flex:0 0 auto;white-space:nowrap;padding:9px 12px;border-radius:999px;color:var(--muted);font-size:13px;font-weight:700}
.channel-strip a:before{content:"";display:inline-block;width:7px;height:7px;background:var(--blue);border-radius:50%;margin-right:7px}
.channel-strip a:hover,.channel-strip a.is-current{background:var(--bg-blue);color:var(--blue)}
.overview-grid{display:grid;grid-template-columns:1.25fr .88fr 1.05fr .82fr;gap:14px}
.overview-item{min-height:180px;padding:24px;border-radius:18px;background:var(--bg-soft);border:1px solid var(--gray-border)}
.overview-item:nth-child(2){background:#fff}
.overview-item:nth-child(3){background:var(--bg-blue)}
.overview-item h3{margin:0 0 12px;color:var(--title);font-size:20px}
.overview-item p{margin:0;color:var(--muted)}
.discussion-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:16px}
.discussion-main{padding:32px;border-radius:22px;background:linear-gradient(145deg,#0C62C8,#1F85FA);color:#fff}
.discussion-main .eyebrow{color:#D9EAFE}
.discussion-main h3{font-size:32px;line-height:1.18;margin:10px 0 18px;color:#fff}
.discussion-main p{color:#EDF5FF;margin:0}
.discussion-main .text-link{color:#fff;margin-top:20px}
.discussion-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.discussion-item{padding:18px;background:#fff;border:1px solid var(--gray-border);border-radius:16px}
.discussion-item h3{margin:0 0 8px;color:var(--title);font-size:17px}
.discussion-item p{margin:0 0 10px;color:var(--muted);font-size:14px}
.city-map-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}
.city-map-item{padding:22px;border-radius:18px;background:#fff;border:1px solid var(--gray-border)}
.city-map-item:nth-child(1),.city-map-item:nth-child(4){grid-column:span 5}
.city-map-item:nth-child(2),.city-map-item:nth-child(5){grid-column:span 4}
.city-map-item:nth-child(3),.city-map-item:nth-child(6){grid-column:span 3}
.city-map-item h3{margin:0 0 8px;color:var(--title)}
.city-map-item p{margin:0;color:var(--muted);font-size:14px}
.life-masonry{columns:3;column-gap:14px}
.life-note{break-inside:avoid;margin:0 0 14px;padding:22px;background:#fff;border:1px solid var(--gray-border);border-radius:18px}
.life-note:nth-child(2n){background:var(--bg-soft)}
.life-note h3{margin:10px 0 10px;color:var(--title)}
.life-note p{margin:0 0 14px;color:var(--muted)}
.route-track{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(245px,1fr);gap:14px;overflow-x:auto;overscroll-behavior-x:contain;padding-bottom:8px}
.route-note{padding:22px;background:#fff;border:1px solid var(--gray-border);border-radius:18px;position:relative}
.route-step{display:inline-flex;width:30px;height:30px;border-radius:50%;background:var(--blue);color:#fff;align-items:center;justify-content:center;font-size:12px;font-weight:800}
.route-note h3{margin:16px 0 10px;color:var(--title)}
.route-note p{color:var(--muted);font-size:14px}
.route-caution{border-top:1px dashed var(--border);padding-top:12px;font-size:12px;color:var(--blue-dark)}
.interest-cloud{display:grid;grid-template-columns:repeat(12,1fr);gap:12px}
.interest-chip{padding:20px;border-radius:18px;background:var(--bg-soft);border:1px solid var(--border);grid-column:span 3}
.interest-chip:nth-child(1),.interest-chip:nth-child(5){grid-column:span 4}
.interest-chip:nth-child(3),.interest-chip:nth-child(8){grid-column:span 2}
.interest-chip h3{margin:0 0 8px;color:var(--title)}
.interest-chip p{margin:0 0 10px;color:var(--muted);font-size:14px}
.qa-list{display:grid;gap:12px}
.qa-row{display:grid;grid-template-columns:minmax(240px,.8fr) 1.6fr auto;gap:22px;align-items:start;padding:22px 0;border-top:1px solid var(--gray-border)}
.qa-row:first-child{border-top:0}
.qa-row h3{margin:0;color:var(--title);font-size:18px}
.qa-row p{margin:0;color:var(--muted)}
.story-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:16px}
.story-main,.story-small{padding:28px;border-radius:20px;border:1px solid var(--gray-border)}
.story-main{background:var(--bg-blue)}
.story-main h3{font-size:28px;color:var(--title);margin:10px 0}
.story-main p,.story-small p{color:var(--muted)}
.story-stack{display:grid;gap:12px}
.story-small{padding:20px;background:#fff}
.story-small h3{margin:0 0 8px;color:var(--title)}
.discover-wall{columns:4;column-gap:14px}
.discover-tile{break-inside:avoid;padding:20px;margin:0 0 14px;border-radius:18px;background:#fff;border:1px solid var(--gray-border)}
.discover-tile:nth-child(3n){background:var(--bg-soft)}
.discover-tile h3{margin:10px 0 8px;color:var(--title)}
.discover-tile p{color:var(--muted);font-size:14px}
.guide-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.guide-card{padding:24px;background:#fff;border:1px solid var(--gray-border);border-radius:18px}
.guide-card h3{margin:0 0 10px;color:var(--title)}
.guide-card p{color:var(--muted)}
.principle-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.principle{padding:24px;border-radius:18px;background:var(--bg-soft);border:1px solid var(--gray-border)}
.principle h3{margin:0 0 10px;color:var(--title)}
.principle p{margin:0;color:var(--muted)}
.app-feature{display:grid;grid-template-columns:1fr 1.15fr;gap:34px;align-items:center}
.app-visual{min-height:420px;border-radius:26px;background:linear-gradient(145deg,#EAF4FF,#CFE5FF);display:flex;align-items:center;justify-content:center;overflow:hidden;border:1px solid var(--border)}
.app-visual img{width:100%;height:100%;object-fit:contain}
.phone-fallback{width:230px;height:430px;border:10px solid #fff;border-radius:40px;box-shadow:var(--blue-shadow);background:#fff;padding:16px;display:flex;flex-direction:column;gap:12px}
.phone-fallback .screen-brand{background:var(--blue);color:#fff;border-radius:18px;padding:20px;font-weight:850}
.phone-fallback span{display:block;height:56px;border-radius:14px;background:var(--bg-soft);border:1px solid var(--border)}
.app-copy h2{font-size:38px;line-height:1.15;color:var(--title);margin:8px 0 16px}
.app-copy p{color:var(--muted)}
.feature-mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:22px 0}
.feature-mini-grid div{padding:14px;border-radius:14px;background:var(--bg-soft);color:var(--title);font-weight:700}
.safety-privacy{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}
.safety-block,.privacy-block{padding:32px;border-radius:24px}
.safety-block{background:#EAF4FF;border:1px solid var(--border)}
.privacy-block{background:#F6F8FB;border:1px solid var(--gray-border);margin-top:46px}
.safety-block h3,.privacy-block h3{font-size:28px;margin:8px 0;color:var(--title)}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.tag-list span{padding:6px 10px;border-radius:999px;background:#fff;color:var(--blue-dark);font-size:12px;border:1px solid var(--border)}
.faq-list details{border-top:1px solid var(--gray-border);padding:0}
.faq-list details:last-child{border-bottom:1px solid var(--gray-border)}
.faq-list summary{cursor:pointer;list-style:none;font-weight:800;color:var(--title);padding:18px 42px 18px 0;position:relative}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:"+";position:absolute;right:6px;top:16px;color:var(--blue);font-size:22px}
.faq-list details[open] summary:after{content:"−"}
.faq-list p{margin:0;padding:0 0 20px;color:var(--muted);max-width:920px}
.brand-manifesto{background:linear-gradient(135deg,#0C62C8,#136FE0 55%,#0A5AB9);color:#fff;border-radius:28px;padding:48px;overflow:hidden;position:relative}
.brand-manifesto:before{content:"";position:absolute;width:360px;height:360px;border-radius:50%;background:rgba(255,255,255,.08);right:-120px;top:-160px;pointer-events:none}
.brand-manifesto h2{font-size:clamp(32px,5vw,58px);line-height:1.03;margin:10px 0 22px;max-width:880px;color:#fff}
.brand-manifesto p{max-width:880px;color:#EAF3FF}
.brand-manifesto .text-link{color:#fff;margin-top:16px}
/* Interior layouts */
.content-ledger{max-width:var(--max);margin:0 auto;padding:32px 20px 80px}
.editor-ledger{display:grid;grid-template-columns:290px 1fr;gap:30px;align-items:start}
.ledger-index{position:sticky;top:98px;padding:20px;border-radius:18px;background:var(--bg-soft);border:1px solid var(--gray-border)}
.ledger-index h2{font-size:15px;margin:0 0 12px;color:var(--title)}
.ledger-index a{display:block;padding:8px 4px;color:var(--muted);font-size:14px}
.ledger-index a:hover{color:var(--blue)}
.ledger-content{display:grid;gap:18px}
.ledger-entry{padding:28px;border-bottom:1px solid var(--gray-border)}
.ledger-entry:nth-child(odd){background:#fff}
.ledger-entry h2{margin:0 0 12px;color:var(--title);font-size:28px}
.ledger-entry p{margin:0 0 12px}
.ledger-entry ul{margin:12px 0 0;padding-left:20px;color:var(--muted)}
.city-index{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:28px}
.city-index a{padding:18px;border-radius:16px;background:var(--bg-blue);color:var(--title);font-weight:800}
.city-ribbons{display:grid;gap:14px}
.city-ribbon{display:grid;grid-template-columns:220px 1fr;gap:26px;padding:26px 0;border-top:1px solid var(--gray-border)}
.city-ribbon h2{margin:0;color:var(--title)}
.city-ribbon p{margin:0 0 10px}
.magazine-lead{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;margin-bottom:18px}
.magazine-feature{padding:34px;border-radius:24px;background:var(--bg-blue)}
.magazine-feature h2{font-size:34px;color:var(--title);margin:0 0 12px}
.magazine-feature p{margin:0}
.magazine-notes{display:grid;gap:12px}
.magazine-note{padding:22px;border:1px solid var(--gray-border);border-radius:18px;background:#fff}
.magazine-note h2{font-size:21px;margin:0 0 8px;color:var(--title)}
.magazine-grid{columns:2;column-gap:18px}
.magazine-article{break-inside:avoid;padding:26px;margin:0 0 18px;border-top:3px solid var(--blue-soft);background:var(--bg-soft);border-radius:0 0 18px 18px}
.magazine-article h2{margin:0 0 10px;color:var(--title)}
.route-journal{position:relative;padding-left:34px}
.route-journal:before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;background:var(--blue-soft)}
.journal-stop{position:relative;padding:0 0 34px 26px}
.journal-stop:before{content:"";position:absolute;left:-31px;top:7px;width:14px;height:14px;border:4px solid #fff;background:var(--blue);box-shadow:0 0 0 2px var(--blue-soft);border-radius:50%}
.journal-stop h2{margin:0 0 10px;color:var(--title);font-size:26px}
.journal-stop .note{padding:12px 14px;background:var(--bg-soft);border-radius:12px;color:var(--muted)}
.interest-wall{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}
.interest-panel{grid-column:span 4;padding:26px;border-radius:20px;background:#fff;border:1px solid var(--gray-border)}
.interest-panel:nth-child(1),.interest-panel:nth-child(6){grid-column:span 5;background:var(--bg-blue)}
.interest-panel:nth-child(2),.interest-panel:nth-child(7){grid-column:span 3}
.interest-panel h2{margin:0 0 10px;color:var(--title)}
.interest-panel .topic-line{font-size:13px;color:var(--blue-dark);font-weight:700;margin-top:12px}
.question-directory{display:grid;gap:0}
.question-entry{display:grid;grid-template-columns:72px minmax(240px,.8fr) 1.5fr;gap:22px;padding:28px 0;border-top:1px solid var(--gray-border)}
.question-entry:first-child{border-top:0}
.qmark{font-size:42px;line-height:1;color:var(--blue-soft);font-weight:900}
.question-entry h2{margin:0;color:var(--title);font-size:22px}
.question-entry p{margin:0}
.longread-list{display:grid;gap:24px}
.longread{display:grid;grid-template-columns:180px 1fr;gap:26px;padding:30px 0;border-top:1px solid var(--gray-border)}
.longread:first-child{border-top:0}
.longread-label{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.08em}
.longread h2{margin:0 0 10px;color:var(--title);font-size:29px}
.topic-board{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.topic-card{padding:28px;border-radius:20px;background:var(--bg-soft);border:1px solid var(--gray-border)}
.topic-card:nth-child(3n+1){grid-column:span 2;background:var(--bg-blue)}
.topic-card h2{margin:0 0 10px;color:var(--title);font-size:26px}
.topic-card .boundary{margin-top:14px;padding-top:12px;border-top:1px dashed var(--border);color:var(--muted);font-size:13px}
.knowledge-index{counter-reset:guide;display:grid;gap:14px}
.knowledge-article{counter-increment:guide;display:grid;grid-template-columns:76px 1fr;gap:20px;padding:24px;border:1px solid var(--gray-border);border-radius:18px}
.knowledge-article:before{content:counter(guide,decimal-leading-zero);font-weight:900;font-size:28px;color:var(--blue-soft)}
.knowledge-article h2{margin:0 0 8px;color:var(--title)}
.principle-flow{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.principle-flow article{padding:28px;border-radius:20px;background:#fff;border:1px solid var(--gray-border)}
.principle-flow article:nth-child(1),.principle-flow article:nth-child(6){grid-column:span 2;background:var(--bg-blue)}
.principle-flow h2{margin:0 0 10px;color:var(--title)}
.process-row{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:28px}
.process-row div{padding:18px;border-radius:14px;background:var(--bg-soft);border:1px solid var(--gray-border)}
.notice-index{display:grid;grid-template-columns:240px 1fr;gap:26px}
.notice-tabs{padding:20px;border-radius:18px;background:var(--bg-soft);height:max-content}
.notice-tabs span{display:block;padding:8px 0;color:var(--muted)}
.notice-list{display:grid;gap:0}
.notice-item{padding:24px 0;border-top:1px solid var(--gray-border)}
.notice-item:first-child{border-top:0}
.notice-item h2{margin:0 0 8px;color:var(--title)}
.notice-tag{display:inline-block;font-size:12px;color:var(--blue);background:var(--bg-blue);padding:4px 8px;border-radius:999px;margin-bottom:9px}
.app-product{display:grid;grid-template-columns:minmax(280px,.82fr) 1.18fr;gap:40px;align-items:start}
.product-copy{padding-top:14px}
.product-copy h2{font-size:34px;color:var(--title);margin:0 0 14px}
.product-feature-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}
.product-feature-list article{padding:18px;border-radius:15px;background:var(--bg-soft);border:1px solid var(--gray-border)}
.product-feature-list h3{margin:0 0 6px;color:var(--title)}
.install-steps{counter-reset:install;display:grid;gap:14px}
.install-step{counter-increment:install;display:grid;grid-template-columns:64px 1fr;gap:20px;padding:22px;border-radius:18px;background:var(--bg-soft)}
.install-step:before{content:counter(install);display:flex;width:42px;height:42px;border-radius:50%;align-items:center;justify-content:center;background:var(--blue);color:#fff;font-weight:900}
.install-step h2{margin:0 0 8px;color:var(--title)}
.risk-matrix{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.risk-card{padding:26px;border-radius:20px;background:#fff;border:1px solid var(--gray-border)}
.risk-card h2{margin:0 0 8px;color:var(--title)}
.risk-card .response{margin-top:14px;padding:12px 14px;border-radius:12px;background:var(--bg-blue);color:var(--blue-dark)}
.privacy-categories{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.privacy-card{padding:24px;border-radius:18px;background:var(--bg-soft);border:1px solid var(--gray-border)}
.privacy-card h2{margin:0 0 8px;color:var(--title)}
.rule-directory{display:grid;grid-template-columns:260px 1fr;gap:30px;align-items:start}
.rule-nav{position:sticky;top:98px;padding:20px;border-radius:18px;background:var(--bg-blue)}
.rule-nav a{display:block;padding:8px 0;color:var(--blue-dark);font-weight:700}
.rule-content article{padding:0 0 28px;margin-bottom:28px;border-bottom:1px solid var(--gray-border)}
.rule-content h2{margin:0 0 10px;color:var(--title)}
.help-categories{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:26px}
.help-categories a{padding:18px;border-radius:16px;background:var(--bg-soft);color:var(--title);font-weight:800;border:1px solid var(--gray-border)}
.help-stack{display:grid;gap:14px}
.help-stack article{padding:24px;border-left:4px solid var(--blue-soft);background:#fff}
.help-stack h2{margin:0 0 8px;color:var(--title)}
.feedback-lanes{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.feedback-lane{padding:26px;border-radius:20px;background:var(--bg-soft);border:1px solid var(--gray-border)}
.feedback-lane h2{margin:0 0 8px;color:var(--title)}
.contact-map{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-path{padding:28px;border-radius:20px;border:1px solid var(--gray-border);background:#fff}
.contact-path h2{margin:0 0 9px;color:var(--title)}
.contact-note{margin-top:22px;padding:24px;border-radius:18px;background:var(--bg-blue)}
.about-story{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.about-chapter{padding:30px;border-radius:22px;background:var(--bg-soft);border:1px solid var(--gray-border)}
.about-chapter:nth-child(1),.about-chapter:nth-child(8){grid-column:span 2;background:var(--bg-blue)}
.about-chapter h2{margin:0 0 10px;color:var(--title)}
/* Footer and overlays */
.site-footer{background:#0B1F38;color:#EAF3FF;padding:68px 0 calc(28px + env(safe-area-inset-bottom));margin-top:30px}
.footer-inner{max-width:var(--max);margin:0 auto;padding:0 20px}
.footer-brand{max-width:700px}
.footer-logo-wrap{display:inline-flex;align-items:center}
.footer-logo{max-width:150px;max-height:44px;object-fit:contain}
.footer-brand-name{font-size:26px;font-weight:900;color:#fff}
.footer-english{margin-top:10px;color:#AFCBEC;font-size:12px;letter-spacing:.18em;font-weight:800}
.footer-brand p{color:#BFD0E4}
.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin:42px 0}
.footer-links h2{font-size:14px;color:#fff;margin:0 0 14px}
.footer-links a{display:block;color:#BFD0E4;padding:5px 0;font-size:14px}
.footer-links a:hover{color:#fff}
.footer-note{padding:20px 0;border-top:1px solid rgba(255,255,255,.1);border-bottom:1px solid rgba(255,255,255,.1);color:#AFC0D5;font-size:13px}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;color:#91A7C1;font-size:12px}
.footer-bottom a{margin-left:14px;color:#BFD0E4}
.mobile-bottom-nav{display:none}
.ui-overlay{position:fixed;inset:var(--nav-h) 0 0;background:rgba(9,26,48,.36);z-index:88;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease,visibility .2s ease}
.ui-overlay.is-visible{opacity:1;visibility:visible;pointer-events:auto}
.mega-menu,.search-panel{position:fixed;left:0;right:0;top:var(--nav-h);z-index:90;background:#fff;box-shadow:0 24px 60px rgba(10,35,67,.16);visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-10px);transition:opacity .2s ease,transform .2s ease,visibility .2s ease;max-height:calc(100vh - var(--nav-h));overflow:auto}
.mega-menu.is-open,.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:translateY(0)}
.mega-inner,.search-inner{max-width:var(--max);margin:0 auto;padding:28px 20px 38px}
.panel-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:24px}
.panel-heading h2{margin:5px 0 0;color:var(--title);font-size:26px}
.panel-actions{display:flex;gap:8px;align-items:center}
.panel-close{min-height:44px;padding:0 14px;border:1px solid var(--gray-border);border-radius:12px;background:#fff;color:var(--muted)}
.panel-close:hover{color:var(--blue);border-color:var(--border)}
.mega-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.mega-group h3{font-size:14px;color:var(--title);margin:0 0 10px}
.mega-group a{display:block;padding:10px 0;border-top:1px solid var(--gray-border)}
.mega-group a strong{display:block;color:var(--title);font-size:14px}
.mega-group a span{display:block;color:var(--muted);font-size:12px;margin-top:3px}
.mega-group a:hover strong{color:var(--blue)}
.search-box{display:flex;align-items:center;gap:12px;background:var(--bg-soft);border:1px solid var(--border);border-radius:16px;padding:0 16px;height:58px;margin-bottom:24px;color:var(--blue)}
.search-box input{border:0;background:transparent;flex:1;min-width:0;font-size:17px;color:var(--title)}
.search-box input::placeholder{color:var(--light)}
.search-layout{display:grid;grid-template-columns:.8fr 1.4fr .7fr;gap:28px}
.search-layout h3{font-size:13px;color:var(--title);margin:0 0 10px}
.search-chips{display:flex;flex-wrap:wrap;gap:8px}
.search-chips button{border:1px solid var(--border);background:var(--bg-blue);color:var(--blue-dark);padding:8px 10px;border-radius:999px}
.search-results{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.search-results a{display:block;padding:12px;border-radius:12px;background:var(--bg-soft);color:var(--title);font-weight:700}
.search-results a span{display:block;color:var(--muted);font-size:12px;font-weight:400;margin-top:3px}
.search-results a:hover{background:var(--bg-blue);color:var(--blue)}
.search-empty{color:var(--muted);font-size:13px}
.quick-links{display:grid;gap:6px}
.quick-links a{padding:7px 0;color:var(--muted)}
.quick-links a:hover{color:var(--blue)}
@media (max-width:1100px){
    .desktop-nav{grid-template-columns:minmax(180px,.8fr) auto minmax(185px,.8fr);gap:8px}
    .brand-tag{display:none}
    .primary-nav a{padding:0 7px;font-size:13px}
    .nav-action-link{padding:0 7px}
    .action-label{display:none}
    .editor-desk{grid-template-columns:1fr 1.25fr}
    .editor-side{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,1fr)}
    .editor-side h2{grid-column:1/-1}
    .overview-grid{grid-template-columns:1fr 1fr}
    .interest-cloud .interest-chip{grid-column:span 3}
    .discover-wall{columns:3}
    .help-categories{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:820px){
    :root{--nav-h:64px}
    .desktop-nav{display:none}
    .mobile-nav{display:grid;grid-template-columns:52px 1fr 52px;align-items:center;height:var(--nav-h);padding:0 15px}
    .mobile-nav .icon-button{justify-self:start;padding:0}
    .mobile-brand{justify-self:center;min-width:0;display:flex;align-items:center}
    .mobile-brand .brand-logo{max-width:128px;max-height:38px}
    .mobile-brand .brand-text{font-size:18px;padding:7px 11px}
    .mobile-discover{justify-self:end;min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center;color:var(--blue);font-weight:800}
    .section-shell{padding:56px 15px}
    .page-intro{padding:42px 15px 8px}
    .page-intro p{font-size:16px}
    .home-editor{padding:22px 15px}
    .editor-desk{display:flex;flex-direction:column}
    .editor-intro{order:1;padding:24px}
    .editor-visual{order:2;min-height:350px}
    .visual-fallback{min-height:350px;padding:30px}
    .visual-title{font-size:48px}
    .editor-side{order:3;display:grid;grid-template-columns:1fr 1fr}
    .editor-side h2{grid-column:1/-1}
    .channel-strip-wrap{padding:0 15px}
    .overview-grid,.discussion-grid,.story-grid,.app-feature,.safety-privacy,.magazine-lead,.app-product,.about-story{grid-template-columns:1fr}
    .discussion-list{grid-template-columns:1fr 1fr}
    .city-map-item:nth-child(n){grid-column:span 6}
    .life-masonry{columns:2}
    .interest-cloud{grid-template-columns:repeat(2,1fr)}
    .interest-cloud .interest-chip:nth-child(n){grid-column:auto}
    .qa-row{grid-template-columns:1fr;gap:8px}
    .qa-row .text-link{margin-top:4px}
    .story-main,.story-small{padding:22px}
    .discover-wall{columns:2}
    .guide-list,.principle-grid{grid-template-columns:1fr 1fr}
    .privacy-block{margin-top:0}
    .editor-ledger,.rule-directory{grid-template-columns:1fr}
    .ledger-index,.rule-nav{position:static}
    .city-index{grid-template-columns:1fr 1fr}
    .city-ribbon{grid-template-columns:1fr;gap:8px}
    .magazine-grid{columns:1}
    .interest-wall{grid-template-columns:1fr 1fr}
    .interest-panel:nth-child(n){grid-column:auto}
    .question-entry{grid-template-columns:44px 1fr;gap:14px}
    .question-entry p{grid-column:2}
    .longread{grid-template-columns:1fr;gap:8px}
    .topic-board,.principle-flow,.contact-map{grid-template-columns:1fr}
    .topic-card:nth-child(n),.principle-flow article:nth-child(n){grid-column:auto}
    .process-row{grid-template-columns:1fr 1fr}
    .notice-index{grid-template-columns:1fr}
    .notice-tabs{display:flex;gap:14px;overflow-x:auto}
    .notice-tabs span{white-space:nowrap}
    .product-feature-list,.risk-matrix,.feedback-lanes{grid-template-columns:1fr}
    .privacy-categories{grid-template-columns:1fr 1fr}
    .help-categories{grid-template-columns:1fr 1fr}
    .about-chapter:nth-child(n){grid-column:auto}
    .footer-links{grid-template-columns:1fr 1fr}
    .footer-bottom{flex-direction:column}
    .site-footer{padding-bottom:calc(92px + env(safe-area-inset-bottom))}
    .mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:70;height:calc(62px + env(safe-area-inset-bottom));padding:0 8px env(safe-area-inset-bottom);background:rgba(255,255,255,.98);border-top:1px solid var(--gray-border);display:grid;grid-template-columns:repeat(5,1fr);box-shadow:0 -10px 30px rgba(22,46,76,.06)}
    .mobile-bottom-nav a{min-height:48px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:var(--light);font-size:11px;font-weight:700}
    .mobile-bottom-nav a.is-current{color:var(--blue)}
    .bottom-icon{display:block;width:18px;height:18px;position:relative}
    .bottom-icon:before,.bottom-icon:after{content:"";position:absolute}
    .icon-home:before{width:12px;height:10px;border:2px solid currentColor;border-top:0;left:3px;top:7px;border-radius:2px}
    .icon-home:after{width:10px;height:10px;border-left:2px solid currentColor;border-top:2px solid currentColor;transform:rotate(45deg);left:4px;top:2px}
    .icon-square:before{inset:2px;border:2px solid currentColor;border-radius:4px}
    .icon-topic:before{inset:2px;border:2px solid currentColor;border-radius:50%}
    .icon-topic:after{width:6px;height:2px;background:currentColor;left:6px;top:8px;box-shadow:0 4px 0 currentColor}
    .icon-compass:before{inset:2px;border:2px solid currentColor;border-radius:50%}
    .icon-compass:after{width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-bottom:8px solid currentColor;transform:rotate(40deg);left:5px;top:5px}
    .icon-phone:before{left:4px;top:1px;width:10px;height:16px;border:2px solid currentColor;border-radius:3px}
    .ui-overlay{inset:0;z-index:98}
    .mega-menu{top:0;left:auto;right:0;width:min(88vw,390px);height:100vh;max-height:none;z-index:100;transform:translateX(100%);opacity:1;box-shadow:-18px 0 46px rgba(10,35,67,.18)}
    .mega-menu.is-open{transform:translateX(0)}
    .mega-inner{padding:24px 18px 90px}
    .mega-grid{grid-template-columns:1fr;gap:20px}
    .search-panel{inset:0;width:100%;height:100vh;max-height:none;z-index:101;transform:translateY(18px)}
    .search-inner{padding:20px 15px 90px}
    .search-layout{grid-template-columns:1fr;gap:22px}
    .search-results{grid-template-columns:1fr}
}
@media (max-width:560px){
    .section-heading{align-items:flex-start;flex-direction:column;gap:10px}
    .editor-side{grid-template-columns:1fr}
    .visual-notes{grid-template-columns:1fr}
    .overview-grid,.discussion-list,.guide-list,.principle-grid,.privacy-categories,.help-categories{grid-template-columns:1fr}
    .city-map-item:nth-child(n){grid-column:span 12}
    .life-masonry{columns:1}
    .discover-wall{columns:1}
    .feature-mini-grid{grid-template-columns:1fr}
    .city-index{grid-template-columns:1fr}
    .interest-wall{grid-template-columns:1fr}
    .question-entry{grid-template-columns:36px 1fr}
    .process-row{grid-template-columns:1fr}
    .knowledge-article{grid-template-columns:50px 1fr;padding:18px}
    .footer-links{grid-template-columns:1fr 1fr;gap:22px 16px}
    .brand-manifesto{padding:34px 24px}
}
@media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    *,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}