:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#111;background:#fff;font-synthesis:none;color-scheme:light}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:20px}
body{margin:0;font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-underline-offset:3px;touch-action:manipulation}
a:focus-visible{outline:3px solid #527fff;outline-offset:4px}
.guide-skip{position:fixed;top:8px;left:12px;z-index:10;transform:translateY(-180%);background:#111;color:#fff;padding:10px 16px;border-radius:99px}
.guide-skip:focus{transform:none}
.guide-header{max-width:1100px;margin:auto;padding:calc(18px + env(safe-area-inset-top,0px)) max(22px,env(safe-area-inset-right,0px)) 18px max(22px,env(safe-area-inset-left,0px));display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid #ddd;font-size:14px}
.guide-header a{min-height:44px;display:flex;align-items:center}
.guide-brand{font-size:22px;font-weight:750;letter-spacing:-.05em;text-decoration:none}
.guide-main{max-width:960px;margin:auto;padding:26px 24px 60px}
.guide-breadcrumb{display:flex;flex-wrap:wrap;gap:10px;font-size:14px;color:#666;margin-bottom:38px}
.guide-intro{max-width:760px;padding-bottom:26px}
.guide-eyebrow{text-transform:uppercase;letter-spacing:.09em;font-size:12px;font-weight:700;color:#666;margin:0 0 16px}
h1{font-size:clamp(36px,7vw,66px);letter-spacing:-.06em;line-height:1.03;font-weight:650;margin:0 0 24px;overflow-wrap:anywhere}
.guide-intro>p:not(.guide-eyebrow){font-size:clamp(18px,2.6vw,21px);line-height:1.55;letter-spacing:-.015em;color:#444;max-width:730px}
.guide-action{display:inline-flex;justify-content:center;align-items:center;min-height:50px;max-width:100%;margin-top:12px;padding:13px 22px;border:1px solid #111;border-radius:99px;background:#111;color:#fff;text-decoration:none;font-size:15px;line-height:1.4;font-weight:600;text-align:center}
.guide-action:hover{background:#333}
.guide-section{padding:28px 0;border-top:1px solid #ddd}
h2{font-size:clamp(24px,4vw,32px);line-height:1.17;letter-spacing:-.035em;font-weight:650;margin:0 0 18px}
h3{font-size:19px;line-height:1.3;letter-spacing:-.02em;margin:24px 0 10px}
p{margin:0 0 18px;color:#444;overflow-wrap:anywhere}
.guide-section>p{max-width:790px}
.guide-feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:24px}
.guide-feature-card{position:relative;min-width:0;padding:20px 54px 12px 20px;border:1px solid #ddd;border-radius:18px}
.guide-feature-card h3{font-size:18px;margin:0 0 12px}
.guide-feature-card h3 a{text-decoration:none}
.guide-feature-card h3 a:hover{text-decoration:underline}
.guide-feature-card>.feature-info-link{position:absolute;top:7px;right:6px}
.guide-feature-card p{font-size:14px;line-height:1.55}
.guide-index{padding:18px 22px;background:#f5f5f5;border-radius:18px;margin:10px 0 32px}
.guide-index ol{columns:2;column-gap:32px;margin:0;padding-left:22px}
.guide-index li{break-inside:avoid;margin:0 0 10px;padding-left:4px;font-size:15px;line-height:1.5}
.guide-feature{padding:34px 0;border-top:1px solid #ddd;scroll-margin-top:24px}
.guide-feature-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.guide-feature-heading h2{max-width:760px;margin-top:4px}
.guide-number{font-size:15px;font-variant-numeric:tabular-nums;letter-spacing:0;display:block;color:#666;margin-bottom:9px}
.guide-feature>p{max-width:790px}
.guide-note{padding:18px 20px;background:#f5f5f5;border-left:3px solid #111;border-radius:0 12px 12px 0}
.guide-text-link{display:inline-flex;align-items:center;min-height:44px;font-size:15px;font-weight:600}
.guide-related{margin-top:36px;padding-top:28px;border-top:1px solid #ddd}
.guide-related h2{font-size:24px}
.guide-related>a{display:inline-flex;align-items:center;min-height:44px;margin:4px 12px 4px 0;padding:9px 14px;border:1px solid #ccc;border-radius:99px;text-decoration:none;font-size:14px}
.guide-related>a:hover{background:#f3f3f3}
.guide-footer{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;background:#080808;color:#fff;padding:28px max(24px,calc((100vw - 912px)/2)) calc(28px + env(safe-area-inset-bottom,0px));font-size:14px}
.guide-footer a{min-height:44px;display:flex;align-items:center}
@media(max-width:620px){.guide-main{padding:20px 20px 40px}.guide-breadcrumb{margin-bottom:28px}.guide-feature-grid{grid-template-columns:minmax(0,1fr)}.guide-index ol{columns:1}.guide-section{padding:24px 0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}