:root{--ink:#14181f;--mute:#5b6474;--line:#e2e6ec;--bg:#f6f7f9;--card:#fff;--acc:#1d4ed8;--acc2:#1e40af;--warn:#c2410c;--bad:#b91c1c;--good:#15803d;--low:#b45309;--chip:#eff6ff}
*{box-sizing:border-box}
body{margin:0;font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,"Hiragino Sans","Noto Sans JP",sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--acc2)}
.top{display:flex;gap:12px;align-items:center;justify-content:space-between;padding:46px 18px 10px;background:#fff;border-bottom:1px solid var(--line);flex-wrap:wrap}
.brand a{font-weight:700;text-decoration:none;color:var(--ink)}.brand span{color:var(--mute)}
.langs button{border:1px solid var(--line);background:#fff;color:var(--ink);padding:4px 8px;border-radius:6px;cursor:pointer;margin-left:2px}.langs button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.tier{font-size:13px;color:var(--mute)}.tier b{color:var(--acc)}
.hero{max-width:1180px;margin:0 auto;padding:20px 18px 6px}
.hero h1{font-size:27px;line-height:1.22;margin:0 0 6px}
.sub{color:var(--mute);margin:0 0 12px}
.better{list-style:none;padding:0;margin:0 0 14px;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.better li{background:#fff;border:1px solid var(--line);border-left:4px solid var(--acc);border-radius:8px;padding:10px 12px;font-size:14px}
.better li.monthly{border-left-color:var(--warn)}
button,.btn{font:inherit;cursor:pointer;border-radius:8px;border:1px solid var(--acc);background:var(--acc);color:#fff;padding:10px 14px;text-decoration:none;display:inline-block}
button.ghost,.btn.ghost{background:#fff;color:var(--acc2)}
button.link{background:none;border:0;color:var(--acc2);padding:2px 0;text-decoration:underline;font-size:13.5px}
button:disabled{opacity:.55;cursor:default}
.cta{display:flex;gap:8px;flex-wrap:wrap}
.btn.buy{background:var(--warn);border-color:var(--warn);color:#fff}
.free{font-size:13px;color:var(--mute);margin:8px 0 0}
.tool{max-width:1180px;margin:0 auto;padding:12px 18px 4px}
.modes{display:flex;gap:2px;margin-bottom:-1px}
.modes button{background:#eef1f5;color:var(--mute);border:1px solid var(--line);border-bottom:0;border-radius:10px 10px 0 0;padding:9px 16px;font-weight:600}
.modes button.on{background:#fff;color:var(--ink);box-shadow:inset 0 3px 0 var(--acc)}
.form{display:grid;grid-template-columns:2fr 1.3fr;gap:10px;background:#fff;border:1px solid var(--line);border-radius:0 10px 10px 10px;padding:12px}
.form[hidden]{display:none}
#gapForm{grid-template-columns:1.4fr 1.2fr 1.2fr}
.themBox{display:flex;flex-direction:column;gap:6px;align-items:stretch}
#addThem{align-self:flex-start}
.form label{display:flex;flex-direction:column;gap:3px;font-size:13px;color:var(--mute)}
.form input,.form select{font:inherit;color:var(--ink);padding:9px 10px;border:1px solid #c9ced6;border-radius:8px;background:#fff;width:100%}
.form .row{grid-column:1/-1;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.quota{font-size:13px;margin:6px 2px 0}
.muted{color:var(--mute)}.small{font-size:12.5px}
.status{min-height:22px;margin:6px 2px;font-size:14px}.status .err{color:var(--bad)}
.res{max-width:1180px;margin:0 auto;padding:4px 18px 14px}
.res[hidden],.pay[hidden]{display:none}
.sum{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:8px}
.sum .big{font-size:20px}.sum .big b{font-size:28px;color:var(--acc2)}
.sum .merged{margin:4px 0;font-size:14.5px;background:#fff7ed;border-left:4px solid var(--warn);padding:6px 10px;border-radius:6px}
.sum p{margin:4px 0}
.topics{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin:6px 0}
.chip{background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:16px;padding:3px 10px;font-size:13px}
.chip i{font-style:normal;color:var(--mute);font-size:12px;margin-left:3px}
.chip.on{background:var(--chip);border-color:var(--acc);color:var(--acc2)}
.filters{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-end;background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px 10px;margin:6px 0}
.filters label{display:flex;flex-direction:column;font-size:12px;color:var(--mute);gap:2px}
.filters input,.filters select{font:inherit;font-size:14px;padding:5px 7px;border:1px solid #c9ced6;border-radius:6px;width:130px}
.filters label.chk{flex-direction:row;align-items:center;gap:5px;font-size:13.5px;color:var(--ink)}
.filters label.chk input{width:auto}
.acts{display:flex;gap:6px;flex-wrap:wrap;align-items:center;margin:6px 0}
.acts button{background:#fff;color:var(--acc2);padding:6px 10px;font-size:13.5px}
.pages{margin:6px 0}
.pages h3{font-size:16px;margin:10px 0 2px}
.plist{margin:6px 0;padding-left:22px;display:grid;grid-template-columns:repeat(2,1fr);gap:6px 18px}
.plist li{background:#fff;border:1px solid var(--line);border-radius:8px;padding:7px 10px;font-size:13.5px;word-break:break-word}
.tblWrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:10px}
table.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
.tbl th{position:sticky;top:0;background:#f1f4f8;text-align:left;padding:7px 8px;border-bottom:1px solid var(--line);cursor:pointer;white-space:nowrap;font-weight:600}
.tbl th.sorted.desc:after{content:" ▼";font-size:10px}.tbl th.sorted.asc:after{content:" ▲";font-size:10px}
.tbl td{padding:6px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl td.num{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
.tbl td.k .kw{font-weight:600}
.tbl .alts{background:none;border:0;color:var(--acc2);padding:0 4px;font-size:12px;text-decoration:underline}
.tbl .altl{font-size:12px;color:var(--mute);margin-top:2px}
.flag{display:inline-block;margin-left:5px;font-size:11.5px;border-radius:10px;padding:0 6px;background:#fef3c7;color:#92400e;border:1px solid #fcd34d;cursor:help}
.tbl td.kd{text-align:center;font-weight:700;white-space:nowrap}
.b-vEasy{color:#166534}.b-easy{color:#15803d}.b-ok{color:#b45309}.b-hard{color:#c2410c}.b-vHard{color:#b91c1c}
.tbl td.tr{white-space:nowrap}.spark{vertical-align:middle;margin-right:4px}.spark polyline{fill:none;stroke:var(--acc);stroke-width:1.5}
.up{color:var(--good);font-size:12px}.dn{color:var(--bad);font-size:12px}
.tbl td.pos{white-space:nowrap;font-size:13px}
.diff{margin:10px 0}.diff h3{font-size:16px}.diff .cols{display:grid;grid-template-columns:1fr 1fr;gap:12px}.diff h4{margin:6px 0}.diff ul{margin:0;padding-left:18px;font-size:13.5px}
.pay{max-width:1180px;margin:10px auto;padding:12px 18px;background:#fff7ed;border:1px solid #fed7aa;border-radius:10px}
.pay h3{margin:0 0 8px;font-size:17px}
.lib{max-width:1180px;margin:0 auto;padding:0 18px}
.lib h2{font-size:17px;margin:10px 0 6px}
.libl{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:8px}
.libl li{background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px 10px;font-size:13.5px}
.libl li button{padding:3px 8px;font-size:12.5px;margin-top:4px}
.libl li button.link{padding:0}
.keybox{max-width:1180px;margin:10px auto;padding:10px 18px;display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:14px}
.keybox input{font:inherit;padding:7px 9px;border:1px solid #c9ced6;border-radius:8px;min-width:260px}
.how{max-width:1180px;margin:0 auto;padding:0 18px;font-size:14px;color:#2b3340}.how h2{font-size:17px}
.foot{max-width:1180px;margin:0 auto;padding:10px 18px 40px;font-size:12.5px;color:var(--mute)}
@media (max-width:900px){.better{grid-template-columns:1fr}.form,#gapForm{grid-template-columns:1fr}.hero h1{font-size:22px}.keybox input{min-width:0;width:100%}.plist{grid-template-columns:1fr}.diff .cols{grid-template-columns:1fr}.filters input,.filters select{width:110px}}
.tbl td:last-child{white-space:nowrap}