:root{
  --bg:#FFFFFF;--soft:#F7FAFF;--blue-soft:#EDF5FF;--gray:#F5F6F8;
  --title:#172033;--text:#3E4859;--muted:#6F7A89;--light:#98A1AF;
  --blue:#1478F2;--blue2:#2F8CFF;--deep:#075DC9;--darkblue:#084A9C;
  --pale:#D9EAFE;--white:#FFFFFF;--border:rgba(20,120,242,.12);
  --grayborder:rgba(30,50,70,.08);--shadow:0 14px 38px rgba(21,67,118,.08);
  --blueshadow:0 16px 42px rgba(20,120,242,.15);--footer:#0B1F38;--navh:74px;--max:1280px;
}
*{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{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(20,120,242,.28);outline-offset:3px}
.skip-link{position:fixed;left:16px;top:8px;z-index:9999;transform:translateY(-160%);background:#fff;color:var(--blue);padding:10px 14px;border-radius:10px;box-shadow:var(--shadow)}
.skip-link:focus{transform:none}
.site-header{position:sticky;top:0;z-index:1200;height:var(--navh);background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--grayborder)}
.nav-shell{width:min(calc(100% - 44px),var(--max));height:100%;margin:0 auto;display:flex;align-items:center}
.desktop-nav{gap:22px}
.brand-lockup{display:flex;align-items:center;gap:10px;min-width:240px}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;min-width:104px;height:44px}
.brand-mark img{max-width:122px;max-height:40px;object-fit:contain}
.brand-text{font-size:20px;font-weight:900;color:var(--blue);letter-spacing:.04em}
.brand-tagline{font-size:12px;color:var(--deep);background:var(--blue-soft);padding:5px 8px;border-radius:999px;white-space:nowrap}
.main-nav{display:flex;justify-content:center;align-items:center;gap:2px;flex:1;min-width:0;white-space:nowrap}
.main-nav a{position:relative;padding:24px 11px 22px;font-size:15px;font-weight:700}
.main-nav a::after{content:"";position:absolute;left:11px;right:11px;bottom:12px;height:3px;border-radius:99px;background:var(--blue);transform:scaleX(0);transition:.2s}
.main-nav a:hover,.main-nav a.is-current{color:var(--blue)}
.main-nav a.is-current::after{transform:scaleX(1)}
.nav-actions{display:flex;justify-content:flex-end;align-items:center;gap:6px;min-width:250px}
.nav-btn,.mobile-square{border:0;background:transparent;min-width:44px;min-height:44px;padding:0 11px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;font-size:14px}
.nav-btn:hover,.nav-btn.is-current{background:var(--blue-soft);color:var(--blue)}
.nav-menu-btn{background:linear-gradient(135deg,#3A96FF 0%,#1478F2 55%,#0863D3 100%);color:#fff}
.nav-menu-btn:hover{color:#fff;box-shadow:0 10px 28px rgba(20,120,242,.22)}
.mobile-nav{display:none;justify-content:space-between}
.mobile-brand{height:44px;min-width:130px;max-width:190px;display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:900;color:var(--blue)}
.mobile-brand img{max-height:38px;max-width:160px;object-fit:contain}
.mobile-square{font-size:22px}

main{min-height:55vh}
.container{width:min(calc(100% - 44px),var(--max));margin:0 auto}
.section{padding:68px 0}
.section.compact{padding:46px 0}
.section.soft{background:var(--soft)}
.section.blue-soft{background:var(--blue-soft)}
.section.gray{background:var(--gray)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:22px;margin-bottom:28px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-weight:850;font-size:13px;letter-spacing:.08em}
.eyebrow::before{content:"";width:18px;height:4px;border-radius:99px;background:var(--blue)}
h1,h2,h3{color:var(--title);line-height:1.25;margin-top:0}
h1{font-size:clamp(34px,4.2vw,60px);letter-spacing:-.04em;margin-bottom:20px}
h2{font-size:clamp(24px,3vw,36px);letter-spacing:-.025em;margin-bottom:12px}
h3{font-size:19px;margin-bottom:10px}
p{margin:0 0 14px}
.lead{font-size:18px;color:var(--muted);max-width:860px}
.tag{display:inline-flex;align-items:center;min-height:28px;padding:4px 10px;border-radius:999px;background:var(--blue-soft);color:var(--deep);font-size:12px;font-weight:800}
.text-link{color:var(--blue);font-weight:800}
.primary-button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border-radius:13px;background:linear-gradient(135deg,#3A96FF 0%,#1478F2 55%,#0863D3 100%);color:#fff;font-weight:850;box-shadow:var(--blueshadow)}
.secondary-link{display:inline-flex;align-items:center;min-height:44px;color:var(--blue);font-weight:800}
.actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.small{font-size:13px;color:var(--muted)}
.card{background:#fff;border:1px solid var(--grayborder);border-radius:18px;padding:24px;box-shadow:var(--shadow)}
.grid-2,.grid-3,.grid-4{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}

.page-intro{padding:58px 0 38px;background:linear-gradient(180deg,var(--soft),#fff)}
.intro-shell{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.6fr);gap:44px;align-items:end}
.breadcrumbs{display:flex;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-bottom:16px}
.breadcrumbs a{color:var(--blue)}
.intro-aside{border-left:4px solid var(--pale);padding-left:22px;color:var(--muted)}

.home-stage{padding:34px 0 26px;background:radial-gradient(circle at 50% 0%,rgba(47,140,255,.1),transparent 44%),#fff}
.editorial-hero{display:grid;grid-template-columns:minmax(230px,.82fr) minmax(360px,1.45fr) minmax(240px,.86fr);gap:18px}
.hero-intro,.hero-center,.hero-side{border-radius:22px;overflow:hidden}
.hero-intro{padding:30px;background:var(--soft);border:1px solid var(--border);display:flex;flex-direction:column;justify-content:space-between}
.hero-intro h1{font-size:clamp(32px,3.6vw,50px);margin-top:15px}
.hero-intro p{color:var(--muted)}
.hero-center{min-height:470px;background:linear-gradient(145deg,#0B6EDB,#2F8CFF 55%,#8BC2FF);display:flex;align-items:center;justify-content:center;box-shadow:var(--blueshadow)}
.hero-center img{width:100%;height:100%;object-fit:contain}
.hero-fallback{text-align:center;color:#fff;padding:40px}
.hero-fallback strong{display:block;font-size:clamp(36px,5vw,72px);letter-spacing:.06em}
.hero-side{display:grid;grid-template-rows:repeat(4,1fr);gap:10px}
.hero-mini{padding:20px;border:1px solid var(--grayborder);border-radius:18px;background:#fff}
.hero-mini:nth-child(even){background:var(--blue-soft)}
.hero-mini p{font-size:13px;color:var(--muted)}
.hero-mini a{color:var(--blue);font-weight:800;font-size:13px}

.channel-strip{border-top:1px solid var(--grayborder);border-bottom:1px solid var(--grayborder)}
.channel-strip-inner{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding:11px 0}
.channel-strip-inner::-webkit-scrollbar{display:none}
.channel-strip a{white-space:nowrap;padding:8px 14px;border-radius:999px;font-size:13px;font-weight:750;color:var(--muted)}
.channel-strip a::before{content:"";display:inline-block;width:7px;height:7px;background:var(--pale);border-radius:50%;margin-right:8px}
.channel-strip a:hover{background:var(--blue-soft);color:var(--blue)}

.overview-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr 1.1fr;gap:16px}
.overview-item{padding:26px;border:1px solid var(--grayborder);border-radius:18px;background:#fff}
.overview-item:nth-child(2){background:var(--blue-soft)}
.overview-item:nth-child(4){background:var(--soft)}
.discussion-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
.feature-topic{padding:34px;border-radius:22px;background:linear-gradient(145deg,#0E65C7,#1478F2 55%,#3C9AFF);color:#fff;box-shadow:var(--blueshadow)}
.feature-topic h2{color:#fff}
.feature-topic p,.feature-topic a{color:rgba(255,255,255,.92)}
.topic-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.topic-list article{padding:20px;border-radius:16px;background:#fff;border:1px solid var(--grayborder)}
.topic-list p{font-size:14px;color:var(--muted)}

.city-map{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}
.city-map article{min-height:170px;padding:24px;border-radius:20px;border:1px solid var(--border);background:#fff}
.city-map article:nth-child(1){grid-column:span 5}.city-map article:nth-child(2){grid-column:span 3;background:var(--blue-soft)}.city-map article:nth-child(3){grid-column:span 4}.city-map article:nth-child(4){grid-column:span 4}.city-map article:nth-child(5){grid-column:span 5;background:var(--soft)}.city-map article:nth-child(6){grid-column:span 3}
.diary-grid{display:grid;grid-template-columns:1.1fr .9fr 1fr;grid-auto-rows:minmax(150px,auto);gap:16px}
.diary-card{padding:22px;border-radius:20px;border:1px solid var(--grayborder);background:#fff}
.diary-card:nth-child(1),.diary-card:nth-child(5){grid-row:span 2;background:var(--soft)}
.diary-card:nth-child(3){background:var(--blue-soft)}
.route-notes{display:flex;gap:14px;overflow-x:auto;padding:4px 2px 14px}
.route-note{flex:0 0 min(360px,80vw);padding:24px;border-radius:18px;border:1px solid var(--grayborder);background:#fff}
.interest-cloud{display:flex;gap:12px;flex-wrap:wrap}
.interest-chip{flex:1 1 210px;min-height:150px;padding:22px;border-radius:22px;background:#fff;border:1px solid var(--border)}
.interest-chip:nth-child(3n+2){background:var(--blue-soft)}
.qa-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.qa-item{padding:24px;border-radius:18px;background:#fff;border:1px solid var(--grayborder)}
.story-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
.story-main{padding:34px;border-radius:22px;background:var(--soft);border:1px solid var(--grayborder)}
.story-side{display:grid;gap:12px}
.story-side article{padding:20px;border-radius:18px;border:1px solid var(--grayborder)}
.masonry-lite{columns:3 260px;column-gap:16px}
.masonry-lite article{break-inside:avoid;margin:0 0 16px;padding:22px;border-radius:18px;border:1px solid var(--grayborder);background:#fff}
.masonry-lite article:nth-child(3n){background:var(--blue-soft)}
.guide-list{display:grid;gap:1px;background:var(--grayborder);border:1px solid var(--grayborder);border-radius:20px;overflow:hidden}
.guide-list article{padding:24px;background:#fff;display:grid;grid-template-columns:180px 1fr auto;gap:20px;align-items:center}
.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.principle{padding:25px;border-radius:18px;background:#fff;border:1px solid var(--grayborder)}
.security-split{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.security-block{padding:32px;border-radius:24px;background:var(--soft);border:1px solid var(--grayborder)}
.security-block:nth-child(2){transform:translateY(28px);background:var(--blue-soft)}
.faq-stack{display:grid;gap:10px}
.faq-stack details{border:1px solid var(--grayborder);border-radius:16px;background:#fff;padding:0 18px}
.faq-stack summary{cursor:pointer;list-style:none;padding:19px 0;font-weight:800;color:var(--title)}
.faq-stack details p{padding-bottom:20px;color:var(--muted)}

.editorial-board{display:grid;grid-template-columns:300px 1fr;gap:24px}
.board-nav{position:sticky;top:98px;align-self:start;padding:22px;border-radius:18px;background:var(--soft)}
.board-nav a{display:block;padding:10px 12px;border-radius:10px;color:var(--muted)}
.board-content{display:grid;gap:14px}
.board-content article{padding:28px;border:1px solid var(--grayborder);border-radius:20px;background:#fff}
.city-index{display:grid}
.city-row{display:grid;grid-template-columns:160px 1fr 140px;gap:20px;padding:24px 0;border-bottom:1px solid var(--grayborder)}
.magazine-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:16px}
.magazine-grid article{padding:24px;border-radius:20px;border:1px solid var(--grayborder)}
.magazine-grid article:nth-child(1){grid-row:span 2;background:var(--blue-soft)}
.travel-steps{counter-reset:route;display:grid;gap:18px}
.travel-step{counter-increment:route;display:grid;grid-template-columns:80px 1fr;gap:20px;padding:24px;border:1px solid var(--grayborder);border-radius:20px;background:#fff}
.travel-step::before{content:counter(route,decimal-leading-zero);display:grid;place-items:center;width:64px;height:64px;border-radius:20px;background:var(--blue-soft);color:var(--blue);font-weight:950;font-size:20px}
.question-index{display:grid;gap:12px}
.question-index article{display:grid;grid-template-columns:1fr 2fr;gap:20px;padding:24px;border:1px solid var(--grayborder);border-radius:18px}
.longform-list{display:grid;gap:20px}
.longform-list article{padding:30px 0;border-bottom:1px solid var(--grayborder)}
.topic-index{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.topic-index article{padding:26px;border-radius:20px;border:1px solid var(--grayborder)}
.notice-list{display:grid;gap:12px}
.notice-list article{display:grid;grid-template-columns:180px 1fr;gap:20px;padding:23px;border:1px solid var(--grayborder);border-radius:18px}
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;counter-reset:process;padding:0}
.process li{counter-increment:process;list-style:none;padding:20px;border-radius:16px;background:var(--soft)}
.process li::before{content:counter(process);display:grid;place-items:center;width:32px;height:32px;border-radius:11px;background:var(--blue);color:#fff;font-weight:900;margin-bottom:12px}
.info-table{border:1px solid var(--grayborder);border-radius:18px;overflow:hidden}
.info-row{display:grid;grid-template-columns:220px 1fr;border-bottom:1px solid var(--grayborder)}
.info-row:last-child{border-bottom:0}.info-row>div{padding:19px 22px}.info-row>div:first-child{background:var(--soft);font-weight:800;color:var(--title)}
.support-categories{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.support-categories a{padding:22px;border-radius:18px;border:1px solid var(--grayborder);background:#fff}
.contact-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.contact-cards article{padding:26px;border-radius:20px;border:1px solid var(--grayborder)}
.about-timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.about-timeline article{padding:24px;border-top:4px solid var(--pale);background:var(--soft)}
.brand-manifesto{padding:55px;border-radius:28px;background:linear-gradient(135deg,#0D65C9,#1478F2 55%,#3B95FF);color:#fff}
.brand-manifesto h2{color:#fff}.brand-manifesto p{color:rgba(255,255,255,.9);font-size:17px}

.channel-menu,.search-panel{position:fixed;left:0;right:0;top:var(--navh);z-index:1400;background:#fff;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-12px);transition:.18s;max-height:calc(100vh - var(--navh));overflow:auto}
.channel-menu.is-open,.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:none}
.panel-shell,.search-shell{width:min(calc(100% - 44px),var(--max));margin:0 auto;padding:26px 0 34px}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:22px}
.panel-head h2{font-size:26px;margin-bottom:0}
.panel-close{min-width:48px;min-height:44px;padding:0 14px;border:1px solid var(--grayborder);background:#fff;border-radius:12px;color:var(--muted)}
.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.channel-grid h3{font-size:14px;color:var(--blue)}
.channel-grid a{display:block;padding:11px 0;border-bottom:1px solid var(--grayborder)}
.channel-grid a strong,.channel-grid a span{display:block}.channel-grid a span{font-size:12px;color:var(--muted)}
.search-box{display:block}.search-box input{width:100%;height:62px;padding:0 18px;border:1px solid var(--border);border-radius:16px;background:var(--soft);font-size:18px}
.search-hints{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0 22px}
.search-hints button{border:0;background:var(--blue-soft);color:var(--deep);padding:8px 12px;border-radius:999px}
.search-links{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.search-links a{padding:16px;border-radius:14px;border:1px solid var(--grayborder)}
.search-links strong,.search-links span{display:block}.search-links span{font-size:12px;color:var(--muted)}.search-links a[hidden]{display:none}
.overlay{position:fixed;inset:var(--navh) 0 0;z-index:1300;background:rgba(11,31,56,.28);visibility:hidden;opacity:0;pointer-events:none;transition:.18s}
.overlay.is-open{visibility:visible;opacity:1;pointer-events:auto}

.site-footer{background:var(--footer);color:#EAF3FF;padding:58px 0 100px}
.footer-shell{width:min(calc(100% - 44px),var(--max));margin:0 auto}
.footer-brand{display:grid;grid-template-columns:180px 1fr;gap:28px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-logo{min-height:74px;display:flex;align-items:center}.footer-logo img{max-width:150px;max-height:54px;object-fit:contain}.footer-logo strong{font-size:28px}
.footer-brand-name{font-size:24px;font-weight:900}.footer-en{font-size:12px;letter-spacing:.18em;color:#AFCBEC;margin:2px 0 10px}.footer-brand p{max-width:820px;color:#BFD1E6}
.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:32px 0}.footer-links h2{font-size:14px;color:#fff}.footer-links a{display:block;color:#BFD1E6;padding:5px 0;font-size:14px}
.footer-note{padding:20px;border-radius:16px;background:rgba(255,255,255,.06);color:#BFD1E6;font-size:13px}.footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:24px;color:#8FAAC8;font-size:12px}
.mobile-bottom-nav{display:none}.sr-only{position:absolute!important;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}

@media(max-width:1080px){.brand-tagline{display:none}.brand-lockup{min-width:125px}.nav-actions{min-width:220px}.main-nav a{padding-left:8px;padding-right:8px;font-size:14px}.overview-grid{grid-template-columns:1fr 1fr}.editorial-hero{grid-template-columns:1fr 1.35fr}.hero-side{grid-column:1/-1;grid-template-columns:repeat(4,1fr);grid-template-rows:none}.support-categories{grid-template-columns:repeat(2,1fr)}}
@media(max-width:820px){
 :root{--navh:64px}.desktop-nav{display:none}.mobile-nav{display:flex;width:100%;padding:0 15px}.container,.panel-shell,.search-shell,.footer-shell{width:min(calc(100% - 30px),var(--max))}
 .section{padding:52px 0}.page-intro{padding:38px 0 24px}.intro-shell{grid-template-columns:1fr;gap:18px}.intro-aside{border-left:0;border-top:4px solid var(--pale);padding:14px 0 0}
 .editorial-hero,.overview-grid,.grid-4,.grid-3,.grid-2,.discussion-layout,.story-layout,.security-split,.editorial-board,.magazine-grid,.question-index,.topic-index,.contact-cards{grid-template-columns:1fr}
 .hero-intro{order:1}.hero-center{order:2;min-height:300px}.hero-side{order:3;grid-column:auto;grid-template-columns:1fr 1fr}
 .topic-list,.qa-list{grid-template-columns:1fr}.city-map{grid-template-columns:1fr}.city-map article{grid-column:auto!important}.diary-grid{grid-template-columns:1fr}.diary-card{grid-row:auto!important}
 .principles{grid-template-columns:1fr 1fr}.guide-list article{grid-template-columns:1fr;gap:8px}.board-nav{position:static}.city-row{grid-template-columns:1fr;gap:8px}.travel-step{grid-template-columns:58px 1fr}.travel-step::before{width:48px;height:48px}.notice-list article{grid-template-columns:1fr}.process{grid-template-columns:1fr 1fr}.info-row{grid-template-columns:1fr}.support-categories{grid-template-columns:1fr 1fr}.about-timeline{grid-template-columns:1fr 1fr}
 .channel-menu{top:0;left:auto;width:min(92vw,420px);height:100vh;max-height:none;transform:translateX(100%)}.channel-menu.is-open{transform:none}.channel-menu .panel-shell{width:100%;padding:22px 18px 30px}.channel-grid{grid-template-columns:1fr;gap:18px}
 .search-panel{top:0;height:100vh;max-height:none;transform:none}.search-shell{padding:20px 0 90px}.search-links{grid-template-columns:1fr}.overlay{inset:0}.channel-menu,.search-panel{z-index:1500}
 .mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:1100;display:grid;grid-template-columns:repeat(5,1fr);padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.98);border-top:1px solid var(--grayborder)}
 .mobile-bottom-nav a{min-height:58px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--muted)}.mobile-bottom-nav a.is-current{color:var(--blue)}.mobile-bottom-nav small{font-size:11px}
 .site-footer{padding-bottom:100px}.footer-brand{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr 1fr}.security-block:nth-child(2){transform:none}
}
@media(max-width:520px){.section-head{align-items:flex-start;flex-direction:column}.hero-side{grid-template-columns:1fr}.hero-center{min-height:250px}.principles,.process,.support-categories,.about-timeline{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr 1fr}.brand-manifesto{padding:34px 24px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}