:root{--guide-navy:#102c49;--guide-navy-deep:#092039;--guide-blue:#1f7391;--guide-aqua:#76c7c2;--guide-paper:#fbfaf7;--guide-sand:#eee8dd;--guide-ink:#173044}
html{scroll-padding-top:18px}
body{background:var(--guide-paper);color:var(--guide-ink);font-size:17px;line-height:1.9}
.guide-shell-nav{position:absolute;z-index:110;top:0;left:0;right:0;color:#fff}
.guide-shell-nav__inner{width:min(1160px,calc(100% - 40px));min-height:84px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid rgba(255,255,255,.2)}
.guide-brand{font-family:Georgia,"Times New Roman",serif;font-size:17px;letter-spacing:.14em;text-decoration:none;white-space:nowrap;color:#fff;text-shadow:0 1px 12px rgba(0,0,0,.22)}
.guide-shell-links,.guide-languages{display:flex;align-items:center;gap:8px}
.guide-shell-links a,.guide-languages a{color:rgba(255,255,255,.82);text-decoration:none;font-size:12px;line-height:1;white-space:nowrap}
.guide-shell-links a{padding:10px 8px}
.guide-languages{padding-left:12px;border-left:1px solid rgba(255,255,255,.28)}
.guide-languages a{display:grid;place-items:center;min-width:38px;height:34px;padding:0 9px;border-radius:999px;border:1px solid rgba(255,255,255,.28)}
.guide-languages a:hover,.guide-languages a:focus-visible,.guide-languages a[aria-current="page"]{background:#fff;color:var(--guide-navy-deep);border-color:#fff}
.cover{position:relative;min-height:760px;padding:138px 24px 76px;background:radial-gradient(circle at 82% 18%,rgba(83,175,184,.2),transparent 30%),linear-gradient(135deg,var(--guide-navy-deep),var(--guide-navy) 64%,#174d63);overflow:hidden}
.cover:before{content:"";position:absolute;width:520px;height:520px;right:-260px;bottom:-310px;border:1px solid rgba(255,255,255,.12);border-radius:50%;box-shadow:0 0 0 90px rgba(255,255,255,.025),0 0 0 180px rgba(255,255,255,.018)}
.cover .inner{width:min(1160px,100%);max-width:none;position:relative;z-index:1}
.cover-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(420px,.95fr);gap:clamp(48px,7vw,100px);align-items:center}
.cover-copy{max-width:650px}
.cover .over{font-size:12px;letter-spacing:.38em;color:#8fd1d0}
.cover h1{font-family:Georgia,"Yu Mincho","Noto Serif",serif;font-size:clamp(48px,6vw,82px);line-height:1.08;letter-spacing:-.04em;margin:26px 0 22px;text-wrap:balance}
.cover .sub{max-width:590px;font-size:clamp(16px,1.7vw,20px);line-height:1.85;color:rgba(255,255,255,.82)}
.cover .author{margin-top:28px;color:#91b5c8}
.cover-stats{display:flex;gap:32px;flex-wrap:wrap;margin:40px 0 0;padding:24px 0 0;border-top:1px solid rgba(255,255,255,.18)}
.cover-stat strong{display:block;font-family:Georgia,serif;font-size:27px;line-height:1;color:#fff}
.cover-stat span{display:block;margin-top:8px;color:rgba(255,255,255,.64);font-size:11px;letter-spacing:.08em}
.cover-photos{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:12px;transform:rotate(1.5deg)}
.cover-photo{position:relative;margin:0;overflow:hidden;border:1px solid rgba(255,255,255,.28);border-radius:18px;background:#153c52;box-shadow:0 28px 70px rgba(0,0,0,.28)}
.cover-photo:first-child{grid-row:1/3}
.cover-photo img{width:100%;height:100%;min-height:220px;object-fit:cover}
.cover-photo:first-child img{min-height:520px}
.cover-photo figcaption{position:absolute;left:12px;right:12px;bottom:12px;padding:9px 12px;border:1px solid rgba(255,255,255,.26);border-radius:999px;background:rgba(6,28,43,.72);backdrop-filter:blur(8px);color:#fff;font-size:11px;text-align:center}
.guide-start{position:relative;z-index:3;width:min(1080px,calc(100% - 40px));margin:-35px auto 0;display:grid;grid-template-columns:repeat(3,1fr);background:#fff;border:1px solid #dfe5e2;border-radius:18px;box-shadow:0 24px 70px rgba(17,46,66,.12);overflow:hidden}
.guide-start a{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:104px;padding:24px 28px;color:var(--guide-ink);text-decoration:none;border-right:1px solid #e2e7e4;font-weight:700}
.guide-start a:last-child{border:0}.guide-start a:after{content:"→";color:var(--guide-blue);font-size:22px}
.guide-start small{display:block;color:#71818a;font-weight:400;font-size:12px}
.wrap{max-width:50em;padding:0 28px}.front{padding-top:32px}
.front h2{font-size:28px;margin-top:64px;border:0;padding:0}.front h2:after{content:"";display:block;width:52px;height:3px;margin-top:14px;background:var(--guide-aqua)}
.howto{padding:22px 24px;background:#edf5f4;border:1px solid #d5e5e2;border-radius:16px}
.tocpage{padding-top:22px}.toc-part{margin:28px 0;padding:20px 22px;background:#fff;border:1px solid #e1e5e1;border-radius:14px;box-shadow:0 8px 24px rgba(17,46,66,.045)}
.toc-pt{border-left:0;padding-left:0;margin-bottom:10px;font-family:Georgia,"Yu Mincho",serif;font-size:18px}
.toc-part ol{padding:0}.toc-part li a{padding:10px 2px;border-bottom:1px solid #edf0ed}.toc-part li:last-child a{border:0}.toc-part li a:hover{color:var(--guide-blue)}
.t-title{font-size:15px;line-height:1.55}.t-num{color:var(--guide-blue)}
.part{position:relative;margin-top:90px;padding:82px 32px;background:linear-gradient(135deg,var(--guide-navy-deep),#174b63);overflow:hidden}
.part:after{content:"";position:absolute;width:220px;height:220px;right:-90px;bottom:-130px;border:1px solid rgba(255,255,255,.18);border-radius:50%}
.part-title{font-size:38px}.chapter{margin:72px 0}.ch-title{font-size:27px;line-height:1.5;border-bottom:1px solid #b9c8ce;padding-bottom:18px}
.keybox{padding:20px 22px;background:#eaf3f5;border-left:5px solid var(--guide-blue);border-radius:0 14px 14px 0}
.ch-body h2{font-size:21px;margin-top:38px;border-left:4px solid var(--guide-aqua)}
.ch-body h3{font-size:17px;color:#245874}.ch-body table{display:block;max-width:100%;overflow-x:auto;background:#fff;border-radius:8px}
.ch-body th{background:var(--guide-navy)}.ch-body strong{background:linear-gradient(transparent 68%,rgba(118,199,194,.3) 68%)}
.tocjump{right:16px;bottom:16px;padding:13px 18px;background:var(--guide-navy-deep);border-color:rgba(255,255,255,.18);box-shadow:0 12px 28px rgba(7,28,42,.25)}
.guidebook-language-bar,.official-nav,.site-return{display:none!important}
.guide-stay-cta{margin:90px 0 70px;padding:clamp(28px,5vw,50px);border-radius:22px;background:linear-gradient(145deg,#0d3347,#0a263c);color:#fff;overflow:hidden}
.guide-stay-cta__head{max-width:620px;margin-bottom:24px}.guide-stay-cta__head small{color:#83d2cf;letter-spacing:.14em}.guide-stay-cta__head h2{font-family:Georgia,"Yu Mincho",serif;font-size:clamp(26px,4vw,40px);line-height:1.25;margin:8px 0}.guide-stay-cta__head p{color:rgba(255,255,255,.72)}
.guide-stay-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.guide-stay-card{display:grid;grid-template-columns:130px 1fr;min-height:130px;background:#fff;color:var(--guide-ink);border-radius:14px;overflow:hidden;text-decoration:none}.guide-stay-card img{width:100%;height:100%;object-fit:cover}.guide-stay-card div{padding:18px}.guide-stay-card strong{display:block;font-family:Georgia,serif;font-size:17px}.guide-stay-card span{display:block;margin-top:8px;color:#657881;font-size:12px}.guide-stay-card em{display:block;margin-top:10px;color:var(--guide-blue);font-style:normal;font-weight:700;font-size:12px}
.colophon{margin-top:60px}
@media(max-width:900px){.guide-shell-links{display:none}.cover{min-height:auto}.cover-grid{grid-template-columns:1fr}.cover-photos{max-width:620px}.guide-start{grid-template-columns:1fr}.guide-start a{min-height:76px;border-right:0;border-bottom:1px solid #e2e7e4}.guide-stay-grid{grid-template-columns:1fr}}
@media(max-width:600px){body{font-size:16px;line-height:1.85;padding-bottom:62px}.guide-shell-nav__inner{width:calc(100% - 24px);min-height:70px;gap:8px}.guide-brand{font-size:13px;letter-spacing:.1em}.guide-languages{gap:3px;padding-left:0;border:0}.guide-languages a{min-width:0;height:30px;padding:0 7px;font-size:9px}.cover{padding:116px 20px 54px}.cover h1{font-size:clamp(40px,13vw,58px)}.cover .sub{font-size:16px}.cover-stats{gap:22px}.cover-photo:first-child{grid-row:auto;grid-column:1/3}.cover-photo:first-child img{min-height:250px}.cover-photo img{min-height:150px}.cover-photo figcaption{font-size:9px}.guide-start{width:calc(100% - 24px);margin-top:-18px;border-radius:14px}.guide-start a{padding:18px 20px}.wrap{padding:0 18px}.front{padding-top:18px}.front h2{font-size:24px}.toc-part{padding:17px 16px}.toc-part li a{display:grid;grid-template-columns:4.5em 1fr;gap:8px}.part{margin-left:-18px;margin-right:-18px;padding:62px 22px}.part-title{font-size:31px}.chapter{margin:58px 0}.ch-title{font-size:23px}.guide-stay-cta{margin:70px -4px 50px;padding:25px 18px}.guide-stay-card{grid-template-columns:100px 1fr}.guide-stay-card div{padding:14px}.tocjump{right:10px;bottom:10px;font-size:11px;padding:12px 14px}}
@media print{.guide-shell-nav,.guide-start,.cover-photos,.cover-stats,.guide-stay-cta{display:none!important}.cover{background:var(--guide-navy)!important}.front{padding-top:0}}

/* 2026-08 readability, navigation and conversion audit */
body{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body .guide-brand{display:inline-flex;align-items:center;min-height:44px}
body .guide-shell-links a{display:inline-flex;align-items:center;min-height:44px}
body .guide-languages a{height:40px;min-width:40px;padding-inline:10px}
body .cover h1,body .front h2,body .part-title,body .ch-title,body .guide-stay-cta__head h2{text-wrap:balance}
body .wrap{max-width:46rem}
body .ch-body p,body .ch-body li{line-height:1.95}
body .ch-body table{overscroll-behavior-inline:contain;-webkit-overflow-scrolling:touch;scrollbar-color:var(--guide-blue) var(--guide-sand)}
body .toc-part li a{min-height:44px;align-items:center}
body .backtoc a{display:inline-flex;min-height:44px;align-items:center;justify-content:center;padding:8px 14px}
body .tocjump{display:inline-flex;min-height:44px;align-items:center;justify-content:center;padding:0 18px;bottom:calc(14px + env(safe-area-inset-bottom))}
body .guide-stay-card{transition:transform .2s ease,box-shadow .2s ease}
body .guide-stay-card em{display:inline-flex;min-height:44px;align-items:center;margin-top:4px}

@media(hover:hover){
  body .guide-start a:hover,body .guide-stay-card:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(17,46,66,.13)}
}

@media(max-width:600px){
  body{padding-bottom:calc(76px + env(safe-area-inset-bottom));font-size:16px;line-height:1.85}
  body .guide-shell-nav__inner{width:calc(100% - 20px);min-height:72px;gap:5px}
  body .guide-brand{min-height:44px;font-size:12px;letter-spacing:.07em}
  body .guide-languages{gap:2px;min-width:0}
  body .guide-languages a{height:42px;min-width:35px;padding:0 5px;font-size:9px}
  body .cover{padding:106px 18px 50px}
  body .cover h1{font-size:clamp(40px,11.3vw,46px);line-height:1.16;margin:22px 0 16px}
  body .cover .over{font-size:10px;letter-spacing:.3em;line-height:1.6}
  body .cover .sub{font-size:15px;line-height:1.85}
  body .cover-stats{gap:20px;margin-top:32px}
  body .guide-start a{min-height:72px;padding:14px 18px}
  body .wrap{max-width:100%;padding-inline:18px}
  body .front h2{margin-top:48px}
  body .part{margin-inline:0;border-radius:14px}
  body .toc-part li a{padding-block:9px}
  body .chapter{margin-block:52px}
  body .ch-title{font-size:22px;line-height:1.5}
  body .keybox{padding:16px 16px}
  body .ch-body h2{margin-top:34px;font-size:19px;line-height:1.5}
  body .ch-body h3{font-size:16px;line-height:1.55}
  body .ch-body p,body .ch-body li{line-height:1.9}
  body .backtoc{margin-top:20px;font-size:12px}
  body .backtoc a{min-height:44px;padding:8px 14px}
  body .tocjump{right:10px;bottom:calc(10px + env(safe-area-inset-bottom));min-height:46px;padding:0 16px;font-size:11px}
  body .guide-stay-cta{margin-bottom:calc(64px + env(safe-area-inset-bottom))}
  body .guide-stay-card{grid-template-columns:96px minmax(0,1fr)}
  body .guide-stay-card div{padding:13px}
}

@media(min-width:601px) and (max-width:900px){
  body .guide-shell-nav__inner{width:calc(100% - 32px)}
  body .cover{padding-inline:28px}
  body .wrap{max-width:44rem}
}

@media print{
  body{padding-bottom:0}
  body .backtoc a{min-height:0;padding:0}
  body .tocjump{min-height:0;padding:0;bottom:-7.5mm}
}

@media(max-width:600px){
  body .guide-shell-nav__inner{position:relative}
  body .guide-brand{font-size:11px;letter-spacing:.045em}
  body .guide-languages{position:absolute;right:0;top:50%;width:164px;justify-content:space-between;gap:0;transform:translateY(-50%)}
  body .guide-languages a{position:relative;width:auto;min-width:30px;height:32px;padding:0 4px;font-size:8.5px}
  body .guide-languages a:before{content:"";position:absolute;inset:-6px -2px}
}