:root{
  --bg:#F2F3EF; --card:#FFFFFF; --ink:#18222E; --muted:#5B6570; --line:#D8DCD3;
  --tape:#E4AE1C; --tape-ink:#2A2006; --tape-soft:#FBF0CF;
  --go:#1C7355; --go-soft:#E1F1EA; --warn:#A6461F; --warn-soft:#F8E6DC;
  --field:#F7F8F5;
  --display:"Dela Gothic One","Hiragino Sans","Yu Gothic",sans-serif;
  --body:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN","Yu Gothic","Meiryo",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
}
:root{color-scheme:light}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:15px;line-height:1.65;padding:0 16px}
.wrap{max-width:1080px;margin:0 auto;padding-block:20px 48px}
a{color:inherit}
:focus-visible{outline:2px solid var(--tape);outline-offset:2px}

/* header */
.top{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:2px dashed var(--line)}
.brand{display:flex;align-items:center;gap:12px}
.logo{width:44px;height:44px;flex:none}
h1{font-family:var(--display);font-weight:400;font-size:clamp(24px,4.4vw,34px);line-height:1.15;margin:0;letter-spacing:.02em}
.tag{margin:2px 0 0;color:var(--muted);font-size:13px}
.stamp{font-family:var(--mono);font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:4px 8px;letter-spacing:.04em}

.notice{margin:16px 0 0;background:var(--go-soft);color:var(--ink);border-radius:8px;padding:10px 14px;font-size:13px}
.notice b{color:var(--go)}

/* app switch */
.apps{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:20px 0 16px;position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:var(--bg);padding-block:8px;box-shadow:0 1px 0 var(--line)}
.apps button{font:inherit;font-weight:700;border:1.5px solid var(--line);background:var(--card);color:var(--ink);padding:8px 16px;border-radius:999px;cursor:pointer}
.apps button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}

.grid{display:grid;grid-template-columns:minmax(0,360px) minmax(0,1fr);grid-template-rows:auto 1fr;gap:20px;align-items:start}
.grid>#form{grid-column:1;grid-row:1}
.grid>section{grid-column:2;grid-row:1 / span 2}
.grid>.side{grid-column:1;grid-row:2;align-self:stretch}
.side .shop{position:sticky;top:calc(env(safe-area-inset-top,0px) + 76px);margin-top:0}
@media (max-width:820px){
  .grid{grid-template-columns:minmax(0,1fr);grid-template-rows:none}
  .grid>#form,.grid>section,.grid>.side{grid-column:1;grid-row:auto}
  .side .shop{position:static}
}

.panel{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px}
.panel h2{font-size:13px;letter-spacing:.12em;color:var(--muted);margin:0 0 12px;font-weight:700}

/* presets */
.presets{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.presets button{font:inherit;font-size:13px;border:1px solid var(--line);background:var(--field);color:var(--ink);padding:4px 10px;border-radius:6px;cursor:pointer}
.presets button:hover{border-color:var(--tape)}
.presets button.on{background:var(--tape-soft);border-color:var(--tape)}

.dims{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.f{display:flex;flex-direction:column;gap:4px}
.f label{font-size:12px;color:var(--muted);font-weight:500}
.inp{display:flex;align-items:center;background:var(--field);border:1.5px solid var(--line);border-radius:8px;padding:0 10px}
.inp:focus-within{border-color:var(--tape)}
.inp input{width:100%;min-width:0;border:0;background:transparent;color:var(--ink);font-family:var(--mono);font-size:18px;font-weight:600;padding:8px 0;outline:none}
.inp span{font-size:12px;color:var(--muted);flex:none}
.row2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:10px}
.hint{font-size:12px;color:var(--muted);margin:8px 0 0}
.sep{border:0;border-top:1px dashed var(--line);margin:16px 0}
.chk{display:flex;gap:8px;align-items:center;font-size:14px;margin-top:10px;cursor:pointer}
.chk input{accent-color:var(--tape);width:16px;height:16px}

/* result hero */
.best{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px 16px;align-items:end;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px;position:relative;overflow:hidden}
.best::before{content:"";position:absolute;left:0;top:0;bottom:0;width:10px;background:repeating-linear-gradient(135deg,var(--tape) 0 8px,transparent 8px 14px)}
.best>*{margin-left:6px}
.best .eyebrow{grid-column:1/-1;font-size:12px;color:var(--muted);letter-spacing:.1em;font-weight:700}
.best .name{font-family:var(--display);font-size:clamp(22px,3.6vw,30px);line-height:1.2;text-wrap:balance}
.best .yen{font-family:var(--mono);font-weight:600;font-size:clamp(28px,5vw,40px);line-height:1;font-variant-numeric:tabular-nums;text-align:right}
.best .yen small{font-size:14px;margin-left:2px}
.best .sub{grid-column:1/-1;font-size:13px;color:var(--muted)}
.none{background:var(--warn-soft);border-radius:12px;padding:16px;font-size:14px}

.money{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-top:12px}
.money div{background:var(--card);padding:12px 14px}
.money dt{font-size:12px;color:var(--muted)}
.money dd{margin:0;font-family:var(--mono);font-weight:600;font-size:20px;font-variant-numeric:tabular-nums}
.money .pos{color:var(--go)} .money .neg{color:var(--warn)}
@media (max-width:480px){.money{grid-template-columns:minmax(0,1fr)}}

.needs{margin-top:12px}
.chk-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.chk-list>li{display:grid;grid-template-columns:22px minmax(0,1fr);gap:8px;font-size:14px}
.chk-list .box{width:18px;height:18px;border:1.5px solid var(--muted);border-radius:4px;margin-top:3px;cursor:pointer;display:grid;place-items:center;font-size:12px;background:transparent;color:var(--go);padding:0}
.chk-list>li.done span{text-decoration:line-through;color:var(--muted)}
.chk-list b{font-weight:700}

/* table */
.tbl{overflow-x:auto;margin-top:12px;border:1px solid var(--line);border-radius:12px;background:var(--card)}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:14px}
th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
th{font-size:12px;color:var(--muted);font-weight:500;background:var(--field)}
tr:last-child td{border-bottom:0}
td.num{font-family:var(--mono);font-weight:600;text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
th.num{text-align:right}
tr.ng td{color:var(--muted)}
tr.ng td.num{text-decoration:line-through;font-weight:500}
.pill{display:inline-block;font-size:11px;font-weight:700;padding:1px 7px;border-radius:999px;margin-right:4px;white-space:nowrap}
.p-best{background:var(--tape);color:var(--tape-ink)}
.p-ok{background:var(--go-soft);color:var(--go)}
.p-ng{background:var(--warn-soft);color:var(--warn)}
.why{font-size:12px;color:var(--muted)}
.carrier{font-size:11px;color:var(--muted);display:block}

/* compare */
.cmp{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:12px}
.cmp>div{border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:var(--card)}
.cmp .a{font-size:12px;color:var(--muted)}
.cmp .v{font-family:var(--mono);font-weight:600;font-size:18px}
.cmp .m{font-size:12px}
.cmp .cur{border-color:var(--ink)}
@media (max-width:480px){.cmp{grid-template-columns:minmax(0,1fr)}}

/* shop / affiliate */
.shop{margin-top:20px}
.shop-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px;flex-wrap:wrap}
.shop-head h3{margin:0;font-size:16px}
.pr{font-size:11px;color:var(--muted);border:1px solid var(--line);padding:0 6px;border-radius:4px}
.goods{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px;margin-top:10px}
.good{display:flex;flex-direction:column;gap:6px;border:1px solid var(--line);border-radius:10px;padding:12px;background:var(--card)}
.good .t{font-weight:700;font-size:14px}
.good .d{font-size:12px;color:var(--muted);flex:1}
.good .links{display:flex;gap:6px}
.good .links a{flex:1;text-align:center;font-size:12px;font-weight:700;text-decoration:none;padding:6px 0;border-radius:6px;border:1.5px solid var(--ink)}
.good .links a.az{background:var(--ink);color:var(--bg)}
.good .links a.rk,.good .links a[data-aff="rk"]{background:#BF0000;border-color:#BF0000;color:#FFFFFF}
.side .shop{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}
.side .goods{grid-template-columns:minmax(0,1fr)}

/* 運営者自身の商品の案内（広告・アフィリエイトの「PR」とは別の表示） */
.own{margin-top:20px;border:1px solid var(--line);border-radius:12px;padding:14px 16px;background:var(--card)}
.own-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px;flex-wrap:wrap}
.own-head h3{margin:0;font-size:15px}
.own-tag{font-size:11px;color:var(--muted);border:1px solid var(--line);padding:0 6px;border-radius:4px}
.own p{margin:6px 0 0;font-size:13px;color:var(--muted);max-width:65ch}
.own .links{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:8px;font-size:13px;font-weight:700}
.own .links a{color:var(--ink)}

.ad{margin-top:20px;border:1.5px dashed var(--line);border-radius:10px;min-height:100px;display:grid;place-items:center;color:var(--muted);font-size:12px;text-align:center;padding:12px}

.sec-title{font-size:13px;letter-spacing:.12em;color:var(--muted);margin:24px 0 0;font-weight:700}
.faq details{border-bottom:1px solid var(--line);padding:10px 0}
.faq summary{cursor:pointer;font-weight:700}
.faq p{margin:6px 0 0;color:var(--muted);font-size:14px;max-width:65ch}
footer{margin-top:32px;font-size:12px;color:var(--muted);border-top:2px dashed var(--line);padding-top:16px}
footer p{margin:4px 0;max-width:80ch}
/* search */
.search{position:relative;margin-bottom:10px}
.q{gap:8px;color:var(--muted)}
.q input{font-family:var(--body);font-size:15px;font-weight:500}
.sugg{position:absolute;z-index:5;left:0;right:0;top:calc(100% + 4px);list-style:none;margin:0;padding:4px;background:var(--card);border:1px solid var(--line);border-radius:10px;box-shadow:0 8px 24px rgba(0,0,0,.12);max-height:320px;overflow:auto}
.sugg button{display:flex;justify-content:space-between;gap:8px;width:100%;text-align:left;font:inherit;background:transparent;color:var(--ink);border:0;border-radius:6px;padding:8px 10px;cursor:pointer}
.sugg button:hover,.sugg button.act{background:var(--tape-soft)}
.sugg small{color:var(--muted);font-family:var(--mono);font-size:11px;white-space:nowrap}
.sugg .empty{padding:10px;font-size:13px;color:var(--muted)}
.hint.small{margin:0 0 6px;font-size:12px}
.ref{margin-top:12px}
.ref .presets{margin-bottom:0}

/* ruler */
.ruler{margin:14px 0 0;display:grid;grid-template-columns:minmax(0,1fr) 72px;gap:12px;align-items:end}
.ruler svg{width:100%;height:auto;display:block}
.ruler figcaption{grid-column:1/-1;font-size:12px;color:var(--muted)}
.ruler .lbl{font-size:10px;fill:var(--muted);font-family:var(--body)}

/* first-time guidance */
.steplab{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--muted);margin-right:4px;white-space:nowrap}
.steplab i,.step i{font-style:normal;display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--tape);color:var(--tape-ink);font-family:var(--mono);font-size:12px;font-weight:700;flex:none}
.panel h2.step{display:flex;align-items:center;gap:8px;font-size:15px;letter-spacing:0;color:var(--ink);margin:0 0 10px}
.panel h2.step + .hint.small{margin-top:-4px;margin-bottom:10px}
.sample{margin:0 0 14px;background:var(--tape-soft);border-radius:8px;padding:8px 12px;font-size:13px}
.adv{margin-top:16px;border-top:1px dashed var(--line);padding-top:12px}
.adv summary{cursor:pointer;font-size:13px;font-weight:700;color:var(--muted)}
.adv[open] summary{margin-bottom:10px}
.moneybox{margin-top:12px}
.moneybox summary{cursor:pointer;font-weight:700;font-size:15px;list-style-position:outside}
.moneybox summary span{display:block;font-weight:400;font-size:12px;color:var(--muted);margin-top:2px}
.money-in{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:12px}
@media (max-width:560px){.money-in{grid-template-columns:minmax(0,1fr)}}
.moneybox .money{margin-top:12px}
.kindset{border:0;margin:16px 0 0;padding:14px 0 0;border-top:1px dashed var(--line);display:grid;gap:6px}
.kindset legend.step{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;padding:0;margin-bottom:6px;float:left;width:100%}
.kindset legend + .hint{clear:both;margin:0 0 4px}
.kopt{display:grid;grid-template-columns:18px minmax(0,1fr);gap:8px;align-items:start;padding:8px 10px;border:1.5px solid var(--line);border-radius:8px;cursor:pointer;background:var(--field)}
.kopt input{accent-color:var(--tape);width:16px;height:16px;margin:3px 0 0}
.kopt b{font-size:14px;font-weight:700;display:block}
.kopt small{display:block;font-size:12px;color:var(--muted)}
.kopt:has(input:checked){border-color:var(--tape);background:var(--tape-soft)}
/* flow */
.flow-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:6px 12px}
.flow-head h2{margin:0}
.flow-m{font-weight:700;font-size:14px}
.steps{list-style:none;margin:12px 0 0;padding:0;counter-reset:st;display:grid;gap:16px}
.steps>li{position:relative;padding-left:38px}
.steps>li::before{counter-increment:st;content:counter(st);position:absolute;left:0;top:0;width:26px;height:26px;border-radius:50%;background:var(--ink);color:var(--bg);font-family:var(--mono);font-weight:600;font-size:13px;display:grid;place-items:center}
.steps>li:not(:last-child)::after{content:"";position:absolute;left:12.5px;top:30px;bottom:-14px;border-left:1.5px dashed var(--line)}
.steps h3{font-size:15px;margin:2px 0 6px}
.steps p{margin:0 0 6px;font-size:14px;max-width:65ch}
.near{margin:4px 0 10px;display:grid;gap:4px}
.near label{font-size:12px;color:var(--muted)}
.near input{font-family:var(--body);font-size:14px;font-weight:500}
.drops{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:8px}
.drop{border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:var(--field);display:flex;flex-direction:column;gap:4px}
.drop .dh{display:flex;justify-content:space-between;gap:8px;align-items:center}
.drop p{margin:0;font-size:13px}
.drop .hrs{color:var(--muted);font-size:12px}
.tagx{font-size:11px;font-weight:700;padding:1px 7px;border-radius:999px;background:var(--go-soft);color:var(--go);white-space:nowrap}
.dl{display:flex;flex-wrap:wrap;gap:6px;margin-top:4px}
.dl a{font-size:12px;font-weight:700;text-decoration:none;border:1.5px solid var(--ink);border-radius:6px;padding:4px 8px;color:var(--ink)}
.dl a:first-child{background:var(--ink);color:var(--bg)}
.pick{font:inherit;color:var(--ink);background:none;border:0;padding:0;text-align:left;cursor:pointer;text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:3px}
.pick:hover{text-decoration-color:var(--tape)}
tr.chosen td{background:var(--tape-soft)}
.carriers{margin-top:16px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}
.carriers h3{margin:0 0 6px;font-size:15px}
.carr{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:8px;margin-top:10px}
.cc{border:1px solid var(--line);border-radius:10px;padding:10px 12px;display:flex;flex-direction:column;gap:3px;background:var(--field)}
.cc .co{font-size:11px;color:var(--muted)}
.cc .cp{font-family:var(--mono);font-weight:600;font-size:14px}
.cc .cn{font-size:12px;color:var(--muted);flex:1}
/* alerts / rules */
.sel select{width:100%;border:0;background:transparent;color:var(--ink);font:inherit;font-size:14px;padding:9px 0;outline:none}
.alerts{list-style:none;margin:12px 0 0;padding:0;display:grid;gap:6px}
.alerts li{display:grid;grid-template-columns:auto minmax(0,1fr);gap:10px;align-items:start;font-size:14px;padding:10px 12px;border-radius:8px;background:var(--card);border:1px solid var(--line)}
.alerts li.al-ng{background:var(--warn-soft);border-color:transparent}
.al-tag{display:inline-block;font-size:11px;font-weight:700;padding:1px 8px;border-radius:999px;background:var(--tape-soft);color:var(--ink);white-space:nowrap;margin-top:2px}
.al-ng .al-tag,.al-tag.ng{background:var(--warn);color:var(--card)}
.al-ok .al-tag{background:var(--go-soft);color:var(--go)}
.rule-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px;margin-top:12px}
.rule{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}
.rule h3{font-size:15px;margin:0 0 8px;display:flex;gap:8px;align-items:center}
.rule ul{margin:0;padding-left:1.2em;display:grid;gap:4px;font-size:14px}
.list-rules{margin-top:12px}
.tabs{display:flex;gap:4px;border-bottom:1.5px solid var(--line);margin:-4px 0 14px;overflow-x:auto}
.tabs button{font:inherit;font-weight:700;font-size:14px;background:transparent;color:var(--muted);border:0;border-bottom:3px solid transparent;margin-bottom:-1.5px;padding:8px 14px;cursor:pointer;white-space:nowrap}
.tabs button[aria-selected="true"]{color:var(--ink);border-bottom-color:var(--tape)}
.rp-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.rp-cols h3{font-size:15px;margin:0 0 8px;display:flex;gap:8px;align-items:center}
.rp-cols ul{margin:0;padding-left:1.2em;display:grid;gap:4px;font-size:14px}
.rp-cols a{color:var(--ink)}
/* guide */
.guide{margin-top:28px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}
.guide .crumb{font-size:12px;color:var(--muted)}
.guide h2{font-family:var(--display);font-weight:400;font-size:clamp(20px,3.4vw,26px);margin:4px 0 12px;line-height:1.3;text-wrap:balance}
.guide h3{font-size:15px;margin:18px 0 8px}
.guide,.guide ~ .shop,.guide ~ .ad,.guide ~ .related,.guide ~ .page-foot{max-width:780px;margin-inline:auto}
.guide p,.guide li{max-width:none}
.guide ol{margin:0;padding-left:1.4em;display:grid;gap:4px}
.guide .gtbl{overflow-x:auto}
.guide table{min-width:480px}
.guide .fragile{background:var(--warn-soft);border-radius:8px;padding:8px 12px;font-size:14px}
.index .cat{margin-top:22px}
.index h3{font-size:17px;font-weight:700;margin:0 0 8px;padding-left:10px;border-left:4px solid var(--tape);line-height:1.3}
.index .links{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:14px}
.index .links a{color:var(--ink);text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:3px}
.index .links a:hover{text-decoration-color:var(--tape)}
@media (prefers-reduced-motion:no-preference){.best{animation:pop .25s ease-out}}
@keyframes pop{from{transform:translateY(4px);opacity:.6}to{transform:none;opacity:1}}
@media (max-width:520px){.apps{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}.apps button{flex:none;padding:7px 13px;font-size:14px}}

.cta{display:inline-block;margin:16px 0 4px;background:var(--ink);color:var(--bg);text-decoration:none;font-weight:700;padding:10px 18px;border-radius:999px}
.brand a{color:inherit;text-decoration:none}
.page-foot a{color:inherit}
.related{margin-top:20px}
.related .links{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:14px}
.related a{color:var(--ink)}
.guide h1{font-family:var(--display);font-weight:400;font-size:clamp(22px,3.8vw,30px);margin:4px 0 12px;line-height:1.3;text-wrap:balance}
.legal h1{font-size:24px}.legal h2{font-size:16px;margin-top:24px}.legal p,.legal li{max-width:70ch}
body.no-ads .ad{display:none}
.extra{margin-top:8px}
.extra .qa{margin:10px 0}.extra .qa dt{font-weight:700}.extra .qa dd{margin:4px 0 0}
.extra .sources{margin-top:16px;font-size:13px;color:var(--muted)}.extra .sources a{color:inherit;word-break:break-all}