:root{--ink:#0b0f14;--paper:#f4f6f7;--card:#fff;--acid:#d8ff3e;--muted:#66717c;--line:#d8dde2;--soft:#e9edf0}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans JP","Yu Gothic UI",Meiryo,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit}header,main,footer{width:min(940px,calc(100% - 36px));margin:auto}header{height:78px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);font-size:12px;font-weight:850}.brand{text-decoration:none;display:flex;align-items:center;gap:10px;letter-spacing:.08em}.brand b{width:36px;height:36px;border-radius:11px;background:var(--ink);color:var(--acid);display:grid;place-items:center}.back{text-decoration:none;color:#56616c}.signal{display:flex;gap:10px;align-items:center;margin-top:76px;font-size:10px;font-weight:900;letter-spacing:.12em;color:#68737e}.signal i{width:7px;height:7px;border-radius:50%;background:#18c985;box-shadow:0 0 0 6px rgba(24,201,133,.10)}h1{font-size:clamp(42px,7vw,78px);line-height:1.03;letter-spacing:-.06em;margin:20px 0 24px;max-width:920px}.dek{font-size:18px;line-height:1.9;color:#4d5964;margin:0;max-width:820px}.meta{display:flex;flex-wrap:wrap;gap:8px;margin:26px 0 16px}.meta span,.platforms span{font-size:10px;font-weight:850;border-radius:999px;padding:8px 11px}.meta span{background:#e3e8ec}.platforms{display:flex;flex-wrap:wrap;gap:7px;margin:0 0 64px}.platforms span{background:var(--ink);color:#fff}.platforms span:first-child{color:var(--acid)}section{padding:50px 0;border-top:1px solid var(--line)}section>small{font-size:9px;font-weight:950;letter-spacing:.16em;color:#7b8690}section h2{font-size:31px;letter-spacing:-.045em;margin:8px 0 22px}.answer{background:var(--ink);color:#fff;border:0;border-radius:30px;padding:38px 40px;margin-bottom:12px;box-shadow:0 18px 45px rgba(11,15,20,.10)}.answer small{color:var(--acid)}.answer h2{font-size:34px}.answer p{color:#d5dae0;font-size:16px;line-height:2;margin-bottom:0}.points{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:10px}.points li{min-height:80px;padding:22px 22px 22px 48px;background:#fff;border:1px solid #e0e4e7;border-radius:18px;font-weight:850;line-height:1.6;position:relative}.points li:before{content:"↗";position:absolute;left:20px;top:22px;color:#74808a}.timeline{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}.timeline li{display:grid;grid-template-columns:125px 1fr;gap:22px;padding:19px 0;border-bottom:1px solid var(--line)}.timeline time{font-size:11px;font-weight:900;color:#6d7882}.timeline span{font-size:14px;line-height:1.7}.policy{font-size:13px;line-height:1.9;color:#6c7781;margin:0 0 24px}.sources{list-style:none;padding:0;margin:0;display:grid;gap:10px}.sources li{background:#fff;border:1px solid #e0e4e7;border-radius:18px;padding:20px 22px;transition:transform .15s ease,border-color .15s ease}.sources li:hover{transform:translateY(-1px);border-color:#bfc7ce}.sources a{font-size:14px;font-weight:850;line-height:1.65;text-decoration-thickness:1px;text-underline-offset:4px}.sources small{display:block;margin-top:8px;letter-spacing:.02em;font-size:10px;color:#7b8690}.source-empty{color:#7c8791;font-size:13px}aside{margin:54px 0 82px;background:var(--acid);padding:30px 32px;border-radius:24px}aside b{font-size:10px;letter-spacing:.15em}aside p{font-size:12px;line-height:1.9;margin:9px 0 0;max-width:760px}footer{border-top:1px solid var(--line);padding:30px 0 52px;display:flex;justify-content:space-between;font-size:10px;color:#77828c}@media(max-width:680px){header{height:66px}.signal{margin-top:48px}h1{font-size:43px}.dek{font-size:15px}.platforms{margin-bottom:46px}.answer{border-radius:22px;padding:26px 24px}.answer h2{font-size:28px}.points{grid-template-columns:1fr}.timeline li{grid-template-columns:1fr;gap:6px}section{padding:40px 0}section h2{font-size:27px}footer{padding-bottom:calc(34px + env(safe-area-inset-bottom))}}

/* v1.5.0 commerce + disclosure */
.commerce-box{background:#fff;border:1px solid var(--line);border-radius:26px;padding:30px 32px;margin:18px 0 0}.commerce-box h2{margin-bottom:10px}.commerce-box p{color:#66717c;font-size:13px;line-height:1.8;margin:0 0 18px}.amazon-context-link{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border-radius:999px;background:var(--ink);color:#fff;text-decoration:none;font-size:12px;font-weight:900}.amazon-context-link:hover{transform:translateY(-1px)}footer{gap:18px;flex-wrap:wrap}footer small.associate-disclosure{flex-basis:100%;font-size:9px;color:#8b949d;line-height:1.7}
@media(max-width:680px){.commerce-box{padding:24px;border-radius:20px}.amazon-context-link{width:100%}}

/* v1.5.0 — trend intelligence + sharing */
.score-strip{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:8px;margin:28px 0 16px}.score-strip>div{min-height:88px;border-radius:18px;background:#e7ebee;padding:15px 18px;display:flex;flex-direction:column;justify-content:flex-end}.score-strip small{font-size:9px;font-weight:900;letter-spacing:.12em;color:#727d87}.score-strip strong{font-size:25px;letter-spacing:-.04em;margin-top:5px}.score-strip .score-main{background:var(--ink);color:#fff;display:grid;grid-template-columns:auto auto 1fr;align-items:end;column-gap:6px}.score-strip .score-main small{grid-column:1/-1;color:#9ba5ae}.score-strip .score-main strong{font-size:38px;color:var(--acid)}.score-strip .score-main span{font-size:10px;color:#9ba5ae;padding-bottom:7px}.share-actions{display:flex;gap:8px;margin:0 0 58px}.share-actions button{min-height:42px;border-radius:999px;border:1px solid #d0d6db;background:#fff;padding:0 15px;font-size:11px;font-weight:900;cursor:pointer}.share-actions button:first-child{background:var(--ink);color:#fff;border-color:var(--ink)}.commerce-actions{display:flex;gap:8px;flex-wrap:wrap}.amazon-bestseller-link{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border-radius:999px;background:#f0f2f4;color:var(--ink);text-decoration:none;font-size:12px;font-weight:900}.amazon-bestseller-link:hover,.amazon-context-link:hover{transform:translateY(-1px)}
@media(max-width:680px){.score-strip{grid-template-columns:1fr 1fr}.score-strip .score-main{grid-column:1/-1}.share-actions{margin-bottom:42px}.share-actions button{flex:1;padding:0 9px}.commerce-actions{display:grid}.amazon-bestseller-link{width:100%}}
.analysis-link{display:inline-flex;align-items:center;justify-content:center;min-height:42px;border:1px solid #cbd2d8;border-radius:999px;padding:0 15px;background:#fff;color:#0b0f14;font-size:11px;font-weight:900;text-decoration:none}.analysis-link:hover{transform:translateY(-1px)}

/* v1.12.0.0 related topic discovery */
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.related-grid a{min-height:135px;border:1px solid #dfe4e8;border-radius:18px;background:#fff;padding:20px;text-decoration:none;display:flex;flex-direction:column}.related-grid small{font-size:9px;font-weight:900;letter-spacing:.12em;color:#73808c}.related-grid strong{font-size:15px;line-height:1.5;margin:10px 0 auto}.related-grid span{font-size:9px;color:#75818c;margin-top:14px;font-weight:850}@media(max-width:680px){.related-grid{grid-template-columns:1fr}}

/* v1.12.0.0 — topic trust / accessibility */
.skip-link{position:fixed;left:16px;top:-80px;z-index:999;background:#0b0f14;color:#fff;padding:10px 14px;border-radius:10px;text-decoration:none}.skip-link:focus{top:16px}:where(a,button):focus-visible{outline:3px solid rgba(81,230,255,.72);outline-offset:3px}.breadcrumb{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:24px;color:#7b8791;font-size:10px}.breadcrumb a{text-decoration:none}.breadcrumb b{font-size:9px;letter-spacing:.08em;color:#4f5a64}.about-links{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}.about-links a{display:inline-flex;align-items:center;min-height:36px;border:1px solid rgba(11,15,20,.18);border-radius:999px;padding:0 12px;text-decoration:none;font-size:10px;font-weight:900;background:rgba(255,255,255,.45)}
@media(max-width:680px){.breadcrumb{margin-top:18px}.share-actions{flex-wrap:wrap}.share-actions .analysis-link{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.sources li,.amazon-bestseller-link,.amazon-context-link,.analysis-link{transition:none!important}}

/* v1.12.0.0 — topic page legibility hardening */
section>small,.sources small,footer,.related-grid small,.related-grid span,
.score-strip small,.score-strip .score-main small,.score-strip .score-main span,
.breadcrumb{color:#5e6a75}
.policy,.commerce-box p{color:#5b6772}
footer small.associate-disclosure{color:#66727d}
@media(prefers-contrast:more){.points li,.sources li,.commerce-box,.related-grid a{border-color:#aeb8c1}}

/* v1.12.0.0 — final responsive QA hardening */
html,body{max-width:100%;overflow-x:clip;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{min-width:320px}
h1,h2,.dek,.sources a,.related-grid strong{overflow-wrap:anywhere}
header a,.share-actions button,.analysis-link,.about-links a,footer a{min-width:44px;min-height:44px;display:inline-flex;align-items:center}
@media(max-width:420px){header,main,footer{width:calc(100% - 20px)}h1{font-size:38px}.score-strip{gap:7px}.score-strip>div{padding:13px}.score-strip .score-main strong{font-size:34px}}

/* v1.12.0.0 — multi-SNS share sheet */
body.share-open{overflow:hidden}.share-modal[hidden]{display:none!important}.share-modal{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:20px}.share-modal-backdrop{position:absolute;inset:0;background:rgba(4,7,10,.70);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}.share-sheet{position:relative;z-index:1;width:min(680px,100%);max-height:min(760px,calc(100dvh - 32px));overflow:auto;background:#fff;border:1px solid #d8dde2;border-radius:28px;padding:30px;box-shadow:0 30px 90px rgba(0,0,0,.30);transform:translateY(10px);opacity:0;transition:transform .16s ease,opacity .16s ease}.share-modal.open .share-sheet{transform:none;opacity:1}.share-sheet>small{display:block;color:#65717c;font-size:9px;font-weight:950;letter-spacing:.16em}.share-sheet h2{font-size:28px;line-height:1.2;margin:7px 48px 14px 0}.share-preview{white-space:pre-wrap;background:#f2f4f6;border:1px solid #dce1e5;border-radius:16px;padding:16px;margin:0 0 18px;font-size:12px;line-height:1.75;color:#313b44}.share-close{position:absolute;right:20px;top:18px;width:44px;height:44px;border:0;border-radius:50%;background:#edf0f2;color:#151b20;font-size:24px;line-height:1;cursor:pointer}.share-service-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.share-service-grid a,.share-service-grid button,.share-utility button{min-width:44px;min-height:48px;border:1px solid #d2d8dd;border-radius:14px;background:#fff;color:#10161b;display:flex;align-items:center;justify-content:center;text-align:center;text-decoration:none;font-size:11px;font-weight:900;padding:8px 10px;cursor:pointer}.share-service-grid a:hover,.share-service-grid button:hover,.share-utility button:hover{border-color:#9ca8b2;transform:translateY(-1px)}.share-service-grid a[data-share-service="x"]{background:#0b0f14;color:#fff;border-color:#0b0f14}.share-service-grid a[data-share-service="line"]{background:#06c755;color:#fff;border-color:#06c755}.share-utility{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}.share-note{color:#66727d;font-size:10px;line-height:1.7;margin:14px 2px 0}.share-toast{min-height:0;margin-top:0;font-size:11px;font-weight:850;color:#176b4a}.share-toast.show{margin-top:10px;min-height:18px}.share-actions button{min-height:44px}.share-actions button:first-child{background:var(--ink);color:#fff;border-color:var(--ink)}
@media(max-width:680px){.share-modal{padding:0;place-items:end center}.share-sheet{width:100%;max-height:88dvh;border-radius:26px 26px 0 0;padding:24px 16px calc(20px + env(safe-area-inset-bottom));transform:translateY(24px)}.share-sheet h2{font-size:25px}.share-service-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.share-service-grid a,.share-service-grid button,.share-utility button{min-height:50px}.share-preview{font-size:11px;padding:14px}.share-note{font-size:9px}.share-utility{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){.share-sheet,.share-service-grid a,.share-service-grid button,.share-utility button{transition:none!important}}

/* v1.12.0.0 — NOW GUIDE bridge */
.guide-topic-cta{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:18px 0 6px;padding:16px 18px;border-radius:16px;background:#d8ff3e;color:#0b0f14;text-decoration:none;font-weight:950;box-shadow:0 10px 28px rgba(216,255,62,.12)}.guide-topic-cta span{font-size:13px;line-height:1.45}.guide-topic-cta small{display:block;margin-bottom:3px;font:900 8px/1.2 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.12em}.guide-topic-cta i{font-style:normal;font-size:20px}.guide-topic-cta:hover{transform:translateY(-1px)}@media(max-width:640px){.guide-topic-cta{align-items:flex-start;min-height:64px}}