:root{--ink:#183c3e;--muted:#657877;--line:#dce5e0;--green:#1e6c57;--paper:#f7f9f6;--white:#fff;--gold:#b68621}*{box-sizing:border-box}html{scroll-padding-top:80px;scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.75 system-ui,-apple-system,BlinkMacSystemFont,"Noto Sans JP",sans-serif}a{color:inherit;text-underline-offset:4px}button,input{font:inherit}button{cursor:pointer}button,a,input{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #dfad46;outline-offset:4px}.container{max-width:1184px;padding:0 28px;margin:auto}.top{border-bottom:1px solid var(--line);background:rgba(255,255,255,.96)}.top-row{display:flex;height:74px;align-items:center;justify-content:space-between}.logo{display:flex;align-items:center;gap:9px;text-decoration:none;font-size:22px;font-weight:800;letter-spacing:.08em}.logo-mark{display:inline-grid;place-items:center;background:var(--ink);color:white;width:36px;height:36px;border-radius:9px;font-size:18px;letter-spacing:0}.logo-note{font-weight:500;font-size:12px;color:var(--muted);letter-spacing:0;margin-left:8px}.share-link{font-size:13px;text-decoration:none;color:var(--muted)}.intro{padding:40px 0 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}.eyebrow{font-size:11px;letter-spacing:.1em;color:var(--green);font-weight:700}.intro h1{font-size:clamp(24px,3vw,33px);line-height:1.5;letter-spacing:.02em;margin:8px 0}.intro p{font-size:14px;margin:0;color:var(--muted)}.tool-total{font-size:24px;white-space:nowrap;font-weight:700}.tool-total span{display:block;font-size:11px;text-align:right;color:var(--muted);font-weight:400}.search-area{background:white;border:1px solid #cadbd1;border-radius:13px;padding:15px 19px;box-shadow:0 3px 12px #1b554205;margin-bottom:26px}.search-area label{display:block;font-weight:600;font-size:11px;color:var(--muted);margin-bottom:5px}.search-field{display:flex;gap:12px;align-items:center}.search-field svg{width:22px;height:22px;flex:none;color:var(--green)}.search-field input{font-size:17px;width:100%;border:0;outline:none;min-width:0;padding:6px 0;color:var(--ink);background:transparent}.search-field input:focus-visible{outline:none}.search-area:focus-within{outline:2px solid #69a18b;outline-offset:1px}.search-field input::placeholder{color:#8b9c94}.search-field button{border:0;background:#eef3ef;border-radius:7px;font-size:11px;color:var(--muted);padding:6px 10px;white-space:nowrap}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}.section-heading h2{font-size:17px;font-weight:700;margin:0;letter-spacing:.02em}.section-heading>span{font-size:11px;color:var(--muted)}.favorites{margin-bottom:30px}.favorite-hint{margin:0;border:1px dashed #cbd9d1;border-radius:10px;padding:13px 18px;font-size:12px;color:var(--muted);background:#f2f6f0}.favorite-list{display:flex;flex-wrap:wrap;gap:8px}.favorite-item{display:flex;align-items:center;background:#e9f2e9;border:1px solid #d4e4d4;border-radius:9px;max-width:100%}.favorite-item>a{display:block;font-size:13px;font-weight:600;padding:9px 12px;text-decoration:none;overflow-wrap:anywhere}.favorite-item>button{border:0;background:none;color:#617b6a;min-width:36px;min-height:40px;border-left:1px solid #d4e4d4}.storage-hint{font-size:12px;color:#83632a}.categories{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:18px}.categories button{border:1px solid var(--line);background:white;border-radius:8px;padding:8px 12px;color:#546b62;font-size:12px;display:flex;gap:7px;align-items:center;min-height:38px}.categories button span{font-size:10px;opacity:.65}.categories button[aria-pressed=true]{background:var(--ink);color:white;border-color:var(--ink)}.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.tool{position:relative;display:flex;align-items:stretch;border:1px solid var(--line);border-radius:11px;background:white;min-width:0;transition:border-color .15s,box-shadow .15s}.tool:hover{border-color:#9ebcaa;box-shadow:0 3px 12px #203c3010}.tool-open{display:flex;align-items:center;gap:12px;width:100%;padding:18px 38px 18px 15px;text-decoration:none;min-width:0;min-height:108px}.tool-icon{display:grid;place-items:center;flex:none;width:36px;height:36px;border-radius:9px;background:#edf4ec;color:#497257}.tool-icon svg{width:21px;height:21px}.tool-icon.calc{background:#edf1fa;color:#526e9a}.tool-icon.docs{background:#f4eef8;color:#8663a0}.tool-icon.days{background:#fff5e7;color:#b18344}.tool-icon.learn{background:#e9f4f0;color:#418572}.tool-copy{min-width:0}.tool h3{font-size:14px;font-weight:650;line-height:1.65;margin:0 0 5px;overflow-wrap:anywhere}.tool p{color:var(--muted);font-size:12px;line-height:1.7;margin:0;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:1;overflow:hidden}.go{position:absolute;right:15px;bottom:13px;font-size:12px;color:#82978b}.star{position:absolute;right:6px;top:5px;border:0;border-radius:7px;background:transparent;color:#8a9d90;font-size:20px;min-height:36px;min-width:36px;line-height:1}.star:hover{background:#f5f5e9}.star[aria-pressed=true]{color:var(--gold)}.recent{border-top:1px solid var(--line);padding-top:24px;margin-top:34px}.recent-links{display:flex;gap:10px 22px;flex-wrap:wrap}.recent-links a{font-size:12px;text-decoration:none}.recent-links a span{color:#91a295;margin-left:3px}.related{margin-top:28px}.related-link{display:flex;align-items:center;gap:15px;border:1px solid var(--line);border-radius:11px;background:#eff4ee;padding:18px 20px;text-decoration:none}.related-link h3{font-size:14px;margin:0}.related-link p{font-size:12px;color:var(--muted);margin:3px 0 0}.related-link>span:last-child{margin-left:auto}.related-symbol{font-size:25px;font-weight:500;color:var(--green)}.no-results{text-align:center;border:1px dashed var(--line);padding:35px 18px;background:white;border-radius:12px}.no-results h3{font-size:16px;margin:0}.no-results p{font-size:13px;color:var(--muted)}.no-results button{border:0;border-radius:8px;background:var(--ink);color:white;padding:9px 18px}.hb-share{border-top:1px solid var(--line);margin-top:32px;padding-top:22px;display:flex;gap:18px;align-items:center;flex-wrap:wrap}.hb-share .hb-kicker{display:none}.hb-share h2{font-size:14px;margin:0}.hb-share-note{font-size:11px;color:var(--muted);margin:5px 0}.hb-share-actions{display:flex;gap:8px;flex-wrap:wrap;margin-left:auto}.hb-share-actions a,.hb-share-actions button{font-size:11px;text-decoration:none;border:1px solid #d8e2d8;background:transparent;color:var(--ink);border-radius:7px;padding:7px 10px}.hb-share-status{font-size:12px;width:100%;margin:0;color:var(--green)}.hb-copy-fallback{width:100%;padding:8px;border:1px solid var(--line)}.guide{font-size:11px;color:var(--muted);line-height:1.9;margin:24px 0 34px}.guide p{margin:5px 0}.hb-footer{max-width:1128px;border-top:1px solid var(--line);margin:0 auto;padding:24px 0 35px;color:var(--muted);font-size:11px}.hb-footer>a{font-size:13px;font-weight:600;text-decoration:none}.hb-footer p{margin:10px 0}.skip{position:absolute;left:15px;top:-80px;z-index:99;background:white;padding:10px}.skip:focus{top:10px}[hidden]{display:none!important}@media(max-width:1040px){.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hb-footer{margin:0 28px}}@media(max-width:620px){.container{padding:0 18px}.top-row{height:62px}.logo{font-size:19px}.logo-note{display:none}.logo-mark{width:31px;height:31px;font-size:16px}.intro{padding:25px 0 19px;gap:5px}.intro h1{font-size:24px;line-height:1.6;max-width:300px}.intro p{font-size:12px;max-width:290px}.tool-total{display:none}.search-area{padding:12px 14px;margin-bottom:22px}.search-field{gap:8px}.search-field input{font-size:16px}.tool-grid{grid-template-columns:1fr;gap:8px}.tool-open{padding:14px 39px 14px 14px;min-height:88px}.tool h3{font-size:14px;line-height:1.6}.tool p{font-size:12px}.tool-icon{width:34px;height:34px}.categories{gap:6px;margin-bottom:15px}.categories button{padding:8px 10px;font-size:11px}.categories button span{display:none}.section-heading h2{font-size:16px}.favorites{margin-bottom:24px}.hb-share{display:block}.hb-share-actions{margin-top:12px}.recent{padding-top:20px;margin-top:25px}.related-link{padding:15px}.related-link p{font-size:11px}.hb-footer{margin:0 18px}.tool-copy{flex:1}.favorite-item>a{font-size:12px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}@media print{.top,.search-area,.categories,.favorites,.star,.go,.recent,.hb-share,.hb-footer{display:none!important}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tool{break-inside:avoid;box-shadow:none}.tool p{display:block}.intro{padding:12px 0}.related{break-inside:avoid}.tool-open{padding:12px}}