:root{--paper: #f5f8f7;--paper-2: #e8efee;--card: #ffffff;--ink: #14212b;--ink-2: #44525d;--water: #0b5d6b;--water-2: #0d6f80;--water-bg: #e2eff0;--copper: #a3461b;--copper-soft: #f0b48f;--copper-bg: #fbefe7;--rule: #cbd7d6;--grid: rgba(11, 93, 107, .07);--unk: #56626c;--focus: #1557d0;--font: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Yu Gothic", Meiryo, sans-serif;--num: ui-monospace, "SFMono-Regular", Consolas, "BIZ UDGothic", monospace}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:1.09375rem;line-height:1.85}a{color:var(--water);text-underline-offset:.22em;text-decoration-thickness:1.5px}a:hover{color:var(--copper)}:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:4px}h1,h2,h3{line-height:1.4;letter-spacing:.03em;font-weight:800}h2{font-size:clamp(1.35rem,2.6vw,1.7rem);margin:3rem 0 1.1rem;display:flex;align-items:center;gap:.7rem}h2:before{content:"";flex:none;width:34px;height:18px;background:no-repeat center/contain url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 34 18'%3E%3Cpath d='M1 12h9l3-9 4 14 3-10 2 5h11' fill='none' stroke='%230b5d6b' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")}h3{font-size:1.15rem;margin:1.8rem 0 .5rem}p{margin:0 0 1em}.wrap{width:min(1160px,100% - 32px);margin-inline:auto}.skip{position:absolute;left:-9999px;top:0;background:var(--water);color:#fff;padding:.6rem 1rem;z-index:10;font-weight:700}.skip:focus{left:8px;top:8px}.num{font-family:var(--num);font-variant-numeric:tabular-nums}.ico{width:30px;height:30px;flex:none}[hidden]{display:none!important}.hd{background:var(--card);border-bottom:1px solid var(--rule);box-shadow:0 3px 0 var(--water)}.hd-in{display:flex;align-items:center;justify-content:space-between;gap:.8rem 2rem;padding-block:.8rem;flex-wrap:wrap}.logo{display:flex;align-items:center;gap:.75rem;color:var(--ink);text-decoration:none}.logo:hover{color:var(--ink)}.logo-mark{width:46px;height:46px;flex:none}.logo-text{display:grid;line-height:1.2}.logo-text b{font-size:1.4rem;letter-spacing:.06em}.logo-text small{font-size:.7rem;letter-spacing:.2em;color:var(--ink-2);font-family:var(--num)}.nav{display:flex;flex-wrap:wrap;gap:.2rem}.nav a{color:var(--ink);text-decoration:none;font-weight:700;font-size:.98rem;padding:.5rem .9rem;min-height:48px;display:inline-flex;align-items:center;border-bottom:3px solid transparent}.nav a:hover{color:var(--water);border-bottom-color:var(--copper-soft)}.nav a[aria-current=page]{color:var(--water);border-bottom-color:var(--water)}@media(max-width:760px){.logo-mark{width:40px;height:40px}.logo-text b{font-size:1.2rem}.nav{display:grid;grid-template-columns:repeat(4,1fr);width:100%;gap:0;border-top:1px solid var(--rule)}.nav a{justify-content:center;text-align:center;font-size:.82rem;line-height:1.3;padding:.4rem .2rem}}.crumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:.2rem .5rem;padding:0;margin:1.1rem 0 0;font-size:.9rem;color:var(--ink-2)}.crumb li+li:before{content:"/";margin-right:.5rem;color:var(--rule)}.crumb a{color:var(--ink-2)}.page-title{margin:1.6rem 0 1.8rem;padding-bottom:1.4rem;border-bottom:1px solid var(--rule)}.page-title h1{font-size:clamp(1.7rem,4vw,2.5rem);margin:.2rem 0 0}.page-title p{margin:.7rem 0 0;color:var(--ink-2);max-width:46em}.kicker{display:inline-block;font-family:var(--num);font-size:.78rem;letter-spacing:.18em;color:var(--copper);font-weight:700;text-transform:uppercase}.hero{position:relative;margin:0 -16px;padding:2.6rem 16px 0;background-color:var(--card);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:28px 28px;border-bottom:1px solid var(--rule)}@media(min-width:900px){.hero{margin:0;padding:3.6rem 3rem 0;border:1px solid var(--rule);border-top:0;border-radius:0 0 28px 28px}}.hero h1{font-size:clamp(1.9rem,5vw,3.3rem);margin:.6rem 0 1rem;line-height:1.32;letter-spacing:.02em;max-width:18em}.hero h1 em{font-style:normal;color:var(--water);background:linear-gradient(transparent 70%,var(--copper-bg) 70%)}.hero .lead{font-size:1.1rem;color:var(--ink-2);max-width:38em;margin:0}.wave{display:block;width:100%;height:120px;margin-top:1.6rem;color:var(--water)}.wave .lbl{font-family:var(--num);font-size:13px;fill:var(--copper);font-weight:700;letter-spacing:.08em}@media(max-width:560px){.wave{height:84px}}.finder{background:var(--card);border:1px solid var(--rule);border-top:4px solid var(--water);border-radius:16px;padding:1.5rem;margin:1.6rem 0 0;box-shadow:0 10px 30px #0b5d6b14}.finder h2{margin:0 0 1rem;font-size:1.25rem}.finder-grid{display:grid;gap:1rem}@media(min-width:900px){.finder-grid{grid-template-columns:1fr 1fr 1fr auto;align-items:end}}.field label,.field .lbl{display:block;font-weight:700;margin-bottom:.35rem;font-size:.98rem}select,input[type=search]{width:100%;font:inherit;font-size:1.05rem;padding:.6rem .8rem;min-height:52px;border:1.5px solid #7d8b95;border-radius:10px;background:#fff;color:var(--ink)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font:inherit;font-weight:700;font-size:1.05rem;min-height:52px;padding:.55rem 1.6rem;border-radius:10px;border:0;background:var(--water);color:#fff;cursor:pointer;text-decoration:none}.btn:hover{background:#084954;color:#fff}.btn .ico{width:22px;height:22px}.btn.ghost{background:transparent;color:var(--water);border:1.5px solid var(--water)}.btn.ghost:hover{background:var(--water-bg);color:var(--water)}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin:2rem 0 0;border:1px solid var(--rule);border-radius:14px;background:var(--card);overflow:hidden}.stats div{padding:1rem 1.2rem;border-left:1px solid var(--rule)}.stats div:first-child{border-left:0}.stats b{display:block;font-family:var(--num);font-size:1.9rem;color:var(--water);line-height:1.2}.stats span{font-size:.9rem;color:var(--ink-2)}@media(max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}.stats div:nth-child(3){border-left:0}.stats div:nth-child(n+3){border-top:1px solid var(--rule)}}.methods{display:grid;gap:1px;grid-template-columns:repeat(4,1fr);background:var(--rule);border:1px solid var(--rule);border-radius:14px;overflow:hidden}@media(max-width:900px){.methods{grid-template-columns:repeat(2,1fr)}}.methods>*{background:var(--card);padding:1.1rem 1.1rem 1rem;text-decoration:none;color:var(--ink);display:block}.methods a:hover{background:var(--water-bg);color:var(--ink)}.methods .ico{width:40px;height:40px;color:var(--water)}.methods b{display:block;font-size:1.05rem;margin-top:.3rem}.methods span{display:block;font-size:.9rem;color:var(--ink-2);line-height:1.6}.methods .cnt{font-family:var(--num);color:var(--copper);font-size:.85rem;margin-top:.3rem}.callout{display:grid;gap:1rem 2rem;grid-template-columns:auto 1fr auto;align-items:center;background:var(--copper-bg);border:1px solid #ecd2c2;border-radius:16px;padding:1.4rem 1.6rem;margin:2.4rem 0 0}.callout .ico{width:52px;height:52px;color:var(--copper)}.callout h2{margin:0 0 .3rem;font-size:1.25rem}.callout h2:before{display:none}.callout p{margin:0;color:var(--ink-2)}@media(max-width:760px){.callout{grid-template-columns:1fr}}.board{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}@media(max-width:400px){.board{grid-template-columns:1fr}}.board section{background:var(--card);border:1px solid var(--rule);border-radius:14px;overflow:hidden}.board h3{margin:0;padding:.6rem 1rem;font-size:1rem;color:var(--water);border-bottom:2px solid var(--water);background:var(--water-bg)}.board ul{list-style:none;margin:0;padding:.2rem 0}.board li a,.board li>span{display:flex;align-items:center;gap:.6rem;padding:.4rem 1rem;text-decoration:none;color:var(--ink);min-height:46px;font-weight:700}.board li a:hover{background:var(--water-bg)}.board li>span{color:var(--unk);font-weight:400}.board li+li{border-top:1px dashed var(--rule)}.board .cnt{margin-left:auto;font-family:var(--num);font-size:.9rem;color:var(--ink-2);font-weight:400;white-space:nowrap}.board .cnt b{color:var(--water)}.list{list-style:none;padding:0;margin:0;display:grid;gap:.9rem}.co{background:var(--card);border:1px solid var(--rule);border-radius:14px;padding:1.1rem 1.3rem;display:grid;gap:.3rem 1.6rem;grid-template-columns:1fr minmax(260px,38%)}.co:hover{border-color:var(--water-2)}@media(max-width:860px){.co{grid-template-columns:1fr}}.co h3{margin:0;font-size:1.15rem}.co h3 a{color:var(--ink);text-decoration:none}.co h3 a:hover{color:var(--water);text-decoration:underline}.co .where{margin:0;color:var(--ink-2);font-size:.95rem}.co .tags{display:flex;flex-wrap:wrap;gap:.35rem;margin:.4rem 0 0;padding:0;list-style:none}.co .side{font-size:.92rem;color:var(--ink-2);border-left:1px dashed var(--rule);padding-left:1.2rem}@media(max-width:860px){.co .side{border-left:0;padding-left:0;border-top:1px dashed var(--rule);padding-top:.5rem}}.co .side dl{display:grid;grid-template-columns:auto 1fr;gap:.1rem .8rem;margin:0}.co .side dt{font-weight:700;color:var(--ink)}.co .side dd{margin:0}.tag{display:inline-flex;align-items:center;gap:.3rem;font-size:.85rem;font-weight:700;padding:.12rem .55rem;border-radius:6px;background:var(--water-bg);color:var(--water);line-height:1.6}.tag.cu{background:var(--copper-bg);color:var(--copper)}.tag.gray{background:var(--paper-2);color:var(--ink-2);font-weight:400}.tag.ok:before{content:"✓"}.mk{display:inline-flex;align-items:center;gap:.3rem;font-weight:700;font-size:.92rem;padding:.1rem .55rem;border-radius:999px;white-space:nowrap}.mk.yes{background:var(--water-bg);color:var(--water)}.mk.yes:before{content:"○"}.mk.no{background:#fff;color:var(--ink-2);border:1px solid var(--rule)}.mk.no:before{content:"―"}.mk.unk{background:var(--paper-2);color:var(--unk);font-weight:400}.mk.unk:before{content:"?"}.filters{background:var(--card);border:1px solid var(--rule);border-top:4px solid var(--water);border-radius:14px;padding:1.2rem;margin:0 0 1.2rem;display:grid;gap:1rem}@media(min-width:900px){.filters{grid-template-columns:1fr 1fr 1fr 1.2fr;align-items:end}}.checks{display:flex;flex-wrap:wrap;gap:.2rem 1.2rem;grid-column:1 / -1;border-top:1px dashed var(--rule);padding-top:.6rem;margin:0}.checks label{display:inline-flex;align-items:center;gap:.5rem;min-height:44px;font-weight:700;cursor:pointer;font-size:.98rem}.checks input{width:22px;height:22px;accent-color:var(--water)}.result-bar{display:flex;flex-wrap:wrap;gap:.4rem 1rem;align-items:baseline;margin:0 0 .8rem;font-weight:700}.result-bar .big{font-family:var(--num);font-size:1.8rem;color:var(--water)}.empty{padding:1.4rem;background:var(--card);border:1.5px dashed var(--rule);border-radius:14px}.plate{background:var(--card);border:1px solid var(--rule);border-radius:18px;padding:1.6rem 1.6rem 1.4rem;margin:1.4rem 0 1.8rem;position:relative;overflow:hidden;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:24px 24px}.plate:before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--water)}.plate h1{margin:.2rem 0 .4rem;font-size:clamp(1.6rem,4vw,2.3rem)}.plate .where{color:var(--ink-2);margin:0}.plate .acts{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1rem}.plate .tel{font-family:var(--num);font-size:1.15rem}.grid8{display:grid;grid-template-columns:repeat(4,1fr);gap:.7rem;margin:0 0 1rem;padding:0;list-style:none}@media(max-width:760px){.grid8{grid-template-columns:repeat(2,1fr)}}.grid8 li{background:var(--card);border:1px solid var(--rule);border-radius:12px;padding:.8rem .9rem;display:grid;grid-template-columns:auto 1fr;gap:.1rem .6rem;align-items:center}.grid8 li.yes{border-color:var(--water-2);box-shadow:inset 0 -3px 0 var(--water)}.grid8 li.unk{color:var(--unk);background:#fbfcfc}.grid8 .ico{grid-row:span 2;width:34px;height:34px;color:var(--water)}.grid8 li.unk .ico{color:#93a0a8}.grid8 b{font-size:.98rem;line-height:1.35}.grid8 small{font-size:.82rem}.info{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--rule);border-radius:14px;overflow:hidden}.info th{width:10em;text-align:left;background:var(--paper-2);padding:.85rem 1rem;vertical-align:top;font-size:.98rem;border-top:1px solid var(--rule)}.info td{padding:.85rem 1rem;border-top:1px solid var(--rule);overflow-wrap:anywhere}.info tr:first-child th,.info tr:first-child td{border-top:0}@media(max-width:560px){.info th,.info td{display:block;width:100%}.info td{border-top:0;padding-top:.2rem}}.src{background:var(--card);border:1px dashed var(--rule);border-radius:14px;padding:1.1rem 1.3rem;margin-top:2.4rem;font-size:.95rem}.src h2{font-size:1.05rem;margin:0 0 .5rem}.src ul{margin:0;padding-left:1.2rem;overflow-wrap:anywhere}.note{border-left:4px solid var(--copper-soft);background:var(--card);padding:.9rem 1.1rem;border-radius:0 12px 12px 0;margin:1.2rem 0;color:var(--ink-2)}.note strong{color:var(--ink)}.gm-table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--rule);border-radius:14px;overflow:hidden;font-size:.98rem}.gm-table th,.gm-table td{padding:.8rem .9rem;text-align:left;vertical-align:top;border-top:1px solid var(--rule)}.gm-table thead th{background:var(--water-bg);color:var(--water);font-size:.9rem;border-top:0;white-space:nowrap}.gm-table td.pref{font-weight:700;white-space:nowrap}@media(max-width:860px){.gm-table,.gm-table tbody,.gm-table tr,.gm-table td{display:block;width:100%}.gm-table thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.gm-table tr{border-top:1px solid var(--rule);padding:.6rem 0}.gm-table td{border:0;padding:.2rem 1rem}.gm-table td[data-label]:before{content:attr(data-label) ": ";font-weight:700;color:var(--ink-2);font-size:.88rem}}.dl{display:grid;grid-template-columns:10em 1fr;background:var(--card);border:1px solid var(--rule);border-radius:14px;overflow:hidden;margin:0}.dl dt{background:var(--paper-2);padding:.85rem 1rem;font-weight:700;border-top:1px solid var(--rule)}.dl dd{margin:0;padding:.85rem 1rem;border-top:1px solid var(--rule);overflow-wrap:anywhere}.dl dt:first-of-type,.dl dd:first-of-type{border-top:0}.dl dd ul{margin:0;padding-left:1.2rem}@media(max-width:560px){.dl{grid-template-columns:1fr}.dl dd{border-top:0;padding-top:.1rem}}.steps{list-style:none;margin:1.4rem 0;padding:0;counter-reset:s}.steps li{position:relative;padding:0 0 1.8rem 4rem;counter-increment:s}.steps li:before{content:counter(s,decimal-leading-zero);position:absolute;left:0;top:0;width:2.8rem;height:2.8rem;border-radius:50%;background:var(--card);border:2px solid var(--water);color:var(--water);font-family:var(--num);font-weight:700;display:grid;place-items:center}.steps li:after{content:"";position:absolute;left:1.35rem;top:2.9rem;bottom:.2rem;border-left:4px solid var(--water-bg)}.steps li:last-child:after{display:none}.steps h3{margin:.35rem 0 .3rem}.cols3{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}.cols3>div{background:var(--card);border:1px solid var(--rule);border-radius:14px;padding:1.2rem}.cols3 h3{margin-top:0}.prose{max-width:46em}.prose ul,.prose ol{padding-left:1.3rem}.toc{background:var(--card);border:1px solid var(--rule);border-radius:14px;padding:1rem 1.3rem}.toc ol{margin:0;padding-left:1.3rem}.ft{margin-top:4.5rem;background:var(--card);color:var(--ink-2);border-top:1px solid var(--rule);padding:0 0 2rem;font-size:.95rem}.ft-wave{display:block;width:100%;height:40px;color:var(--water);margin-bottom:1.4rem}.ft a{color:var(--water)}.ft-name{font-weight:800;font-size:1.15rem;color:var(--ink);margin-bottom:.4rem}.ft-h{font-weight:700;color:var(--ink);margin:0 0 .4rem}.ft .cols{display:grid;gap:1.6rem;grid-template-columns:2fr 1fr 1fr;margin-bottom:1.4rem}@media(max-width:760px){.ft .cols{grid-template-columns:1fr}}.ft-meta{border-top:1px dashed var(--rule);padding-top:1rem;font-size:.88rem}.plain{list-style:none;margin:0;padding:0}.plain a{display:inline-block;padding:.3rem 0}.hero h1{word-break:keep-all;overflow-wrap:anywhere}.wave-wrap{position:relative;margin-top:1.6rem}.wave-wrap .wave{margin-top:0}.leak-dot{position:absolute;left:58.8%;bottom:6px;width:16px;height:16px;margin-left:-8px;border-radius:50%;background:var(--copper);box-shadow:0 0 0 6px #a3461b2e}.leak-lbl{position:absolute;left:calc(58.8% + 18px);bottom:26px;font-family:var(--num);font-size:.72rem;letter-spacing:.14em;color:var(--copper);font-weight:700}.nav .ns{display:none}.info th{width:11em}@media(max-width:760px){.nav .nl{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.nav .ns{display:inline;font-size:.95rem}.filters{grid-template-columns:1fr 1fr;gap:.8rem;padding:1rem}.filters .field label{font-size:.9rem}.filters select,.filters input[type=search],.finder select{font-size:.98rem;min-height:48px;padding:.45rem .55rem}.finder-grid{grid-template-columns:1fr 1fr}.finder-grid .btn{grid-column:1 / -1}}.leak-lbl{bottom:1px;left:calc(58.8% + 20px);background:var(--card);padding:0 .45rem;line-height:1.5;border-radius:4px}.toc a{white-space:nowrap}.callout.tight{grid-template-columns:1fr auto;margin:0 0 2rem}@media(max-width:760px){.callout.tight{grid-template-columns:1fr}}h1,h2,h3{word-break:auto-phrase}