:root{--ink:#081d43;--ink-2:#18345d;--orange:#f45b0b;--line:#9aa9bd;--line-light:#d9e0e8;--paper:#fff;--soft:#f6f8fb;--content:1360px;--reading:760px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0;font-family:Yu Gothic,YuGothic,Hiragino Kaku Gothic ProN,Noto Sans JP,sans-serif;font-size:16px;line-height:1.82}a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible{outline-offset:4px;outline:3px solid #ffb081}main{min-height:70vh}.site-header{height:78px;padding:0 max(28px, calc((100vw - var(--content)) / 2));border-bottom:1px solid var(--ink);background:#fff;justify-content:space-between;align-items:center;display:flex}.brand{letter-spacing:.03em;font-size:31px;font-weight:800}.brand span{margin:0 .06em;font-size:.7em}.site-nav{gap:52px;font-size:15px;font-weight:700;display:flex}.site-nav a{border-bottom:3px solid #0000;padding:25px 0 22px;transition:border-color .16s,color .16s}.site-nav a:hover{border-color:var(--orange)}.hero{max-width:var(--content);grid-template-columns:1fr 1.05fr;align-items:center;gap:72px;min-height:548px;margin:auto;padding:58px 0 48px;display:grid}.hero-copy h1{letter-spacing:.02em;white-space:nowrap;margin:0 0 24px;font-size:clamp(48px,5.1vw,74px);font-weight:800;line-height:1.24}.hero-copy>p{margin:0 0 30px;font-size:19px;line-height:1.9}.hero-actions{gap:18px;display:flex}.button{border:2px solid var(--ink);justify-content:space-between;align-items:center;gap:25px;height:64px;padding:0 25px;font-weight:800;line-height:1.2;transition:transform .16s,background-color .16s,color .16s;display:inline-flex}.button svg,.diagnosis-paths a>svg:last-child{width:23px;height:23px}.button.primary{color:#fff;background:var(--orange);border-color:var(--orange)}.button:hover{transform:translateY(-2px)}.notebook{border:1px solid var(--ink);min-height:432px;box-shadow:7px 6px 0 -3px #fff, 8px 7px 0 -3px var(--ink);background-color:#fff;background-image:linear-gradient(#dce3eb 1px,#0000 1px),linear-gradient(90deg,#dce3eb 1px,#0000 1px);background-size:22px 22px;border-radius:9px 22px 22px 9px;padding:56px 42px 30px;position:relative}.notebook:before{content:"";border-left:2px solid var(--ink);position:absolute;top:0;bottom:0;left:20px}.notebook-ruler{border-bottom:1px solid var(--line);color:#536987;word-spacing:13px;white-space:nowrap;height:28px;font:11px/1.5 ui-monospace,monospace;position:absolute;top:11px;left:58px;right:25px;overflow:hidden}.notebook-title{border:2px solid var(--ink);background:#fff;width:max-content;max-width:78%;margin:20px auto 64px;padding:12px 28px;font-size:21px;font-weight:800}.branch-line{border-top:3px solid var(--ink);height:70px;position:absolute;top:170px;left:24%;right:18%}.branch-line:before{content:"";border-left:3px solid var(--ink);height:54px;position:absolute;top:-55px;left:50%}.branch-line:after{content:"";border:3px solid var(--ink);background:#fff;border-radius:50%;width:14px;height:14px;position:absolute;top:-8px;left:50%;transform:translate(-50%)}.notebook-paths{grid-template-columns:repeat(3,1fr);gap:25px;display:grid;position:relative}.notebook-paths>div{flex-direction:column;align-items:center;gap:5px;font-size:22px;font-weight:800;display:flex}.notebook-paths>div:before{content:"";border-left:3px solid;height:30px}.notebook-paths svg{width:48px;height:48px}.notebook-paths .active{color:var(--orange)}.notebook-note{color:#60708a;gap:14px;font-size:10px;display:flex;position:absolute;bottom:16px;right:20px}.diagnosis-section{border-top:1px solid var(--ink);padding:62px max(28px, calc((100vw - var(--content)) / 2)) 82px}.section-heading{text-align:left;margin-bottom:35px}.section-heading h2{letter-spacing:.04em;margin:0;font-size:34px;font-weight:800;line-height:1.35}.section-heading p{color:#40516d;margin:8px 0 0}.section-heading.ruled{text-align:center;position:relative}.section-heading.ruled:before,.section-heading.ruled:after{content:"";border-top:1px solid var(--line);width:27%;position:absolute;top:23px}.section-heading.ruled:before{left:0}.section-heading.ruled:after{right:0}.diagnosis-paths{grid-template-columns:repeat(3,1fr);gap:28px;display:grid}.diagnosis-paths>a{border:2px solid var(--ink);background:#fff;grid-template-columns:58px 1fr 24px;align-items:center;gap:18px;min-height:142px;padding:27px 24px;transition:transform .16s,box-shadow .16s,border-color .16s;display:grid}.diagnosis-paths>a.featured{border-color:var(--orange);color:var(--orange)}.diagnosis-paths>a:hover{box-shadow:6px 6px 0 var(--line-light);transform:translate(-2px,-2px)}.diagnosis-paths>a>svg:first-child{width:55px;height:55px}.diagnosis-paths b{font-size:27px;display:block}.diagnosis-paths small{color:var(--ink);font-size:13px;font-weight:600;line-height:1.5;display:block}.wizard{border:2px solid var(--ink);background:#fff;grid-template-columns:210px 1fr;max-width:900px;min-height:150px;margin:32px auto 0;display:grid}.wizard-heading{background:var(--ink);color:#fff;flex-direction:column;justify-content:center;padding:25px;display:flex}.wizard-heading span{color:#ffb081;font-size:12px;font-weight:800}.wizard-heading strong{font-size:24px}.wizard-question,.wizard-result{justify-content:space-between;align-items:center;gap:24px;padding:24px 30px;display:flex}.wizard-question p,.wizard-result p{margin:0}.wizard-question>div,.wizard-actions{flex-shrink:0;gap:10px;display:flex}.wizard button,.wizard-actions a{border:2px solid var(--ink);min-height:44px;color:var(--ink);font:inherit;cursor:pointer;background:#fff;padding:8px 16px;font-weight:800;transition:background-color .16s,color .16s}.wizard button:first-child,.wizard-actions a{border-color:var(--orange);background:var(--orange);color:#fff}.wizard-result small,.wizard-result strong{display:block}.wizard-result strong{font-size:22px}.content-section{max-width:1180px;margin:auto;padding:84px 0 24px}.section-heading.ticks{border-bottom:1px solid var(--line);padding:0 0 13px 23px;position:relative}.section-heading.ticks:before{content:"";border-left:2px solid var(--ink);height:52px;position:absolute;top:-10px;left:0}.article-row{border-bottom:1px solid var(--line);grid-template-columns:54px 340px minmax(0,1fr);align-items:start;gap:30px;margin:0 0 30px;padding:0 0 30px;display:grid}.article-number{letter-spacing:-.04em;padding-top:23px;font:800 25px/1 ui-monospace,SFMono-Regular,Consolas,monospace;display:block}.article-number:after{content:"";border-bottom:2px solid var(--ink);width:19px;margin-top:13px;display:block}.article-thumb-link{display:block}.thumb{border:1px solid var(--line);background-color:#fff;background-image:linear-gradient(#e8edf3 1px,#0000 1px),linear-gradient(90deg,#e8edf3 1px,#0000 1px);background-size:14px 14px;height:190px;position:relative;overflow:hidden}.thumb-measure{justify-content:center;align-items:center;gap:24px;font-weight:800;display:flex}.thumb-measure span{font-size:25px}.thumb-measure i{background:linear-gradient(90deg, var(--ink) 65%, #dbe1e8 65%);width:105px;height:12px;position:absolute;bottom:43px}.thumb-measure i:last-child{background:linear-gradient(90deg, var(--orange) 52%, #dbe1e8 52%);bottom:23px}.thumb-flow{text-align:center;grid-template-columns:80px 40px 80px;place-content:center;gap:4px;font-size:12px;display:grid}.thumb-flow span{border:1px solid var(--ink);padding:7px}.thumb-flow span:last-child{grid-column:2/4}.thumb-flow i{border-top:2px solid var(--ink);align-self:center}.thumb-check{padding:24px 38px}.thumb-check ol{margin:0;padding-left:25px;font:12px/2.25 ui-monospace,monospace}.thumb-router{justify-content:center;align-items:center;gap:6px;display:flex}.thumb-router span{border:2px solid var(--ink);border-radius:50%;place-items:center;width:78px;height:78px;font-weight:800;display:grid}.thumb-router span:nth-child(2){border-color:var(--orange);color:var(--orange);width:105px;height:105px}.thumb-backup{justify-content:center;align-items:center;gap:18px;font-weight:800;display:flex}.thumb-backup span{border:2px solid var(--ink);padding:18px}.thumb-backup i{border-top:2px solid var(--orange);width:28px}.article-copy h3{margin:4px 0 12px;font-size:25px;line-height:1.48}.article-copy h3 a:hover{color:var(--orange)}.article-copy p{color:#41516a;margin:0 0 18px}.article-category{color:var(--orange);letter-spacing:.03em;font-size:12px;font-weight:800;display:block}.article-meta{color:#40516d;gap:35px;padding-top:8px;font-size:12px;font-weight:700;display:flex}.policy-band{border-top:2px solid var(--ink);border-bottom:2px solid var(--ink);grid-template-columns:185px 1fr;max-width:1240px;min-height:164px;margin:76px auto 8px;display:grid}.policy-mark{background-color:var(--ink);background-image:linear-gradient(#ffffff2e 1px,#0000 1px),linear-gradient(90deg,#ffffff2e 1px,#0000 1px);background-size:22px 22px}.policy-band>div:last-child{padding:28px 58px}.policy-band h2{margin:0 0 10px;font-family:Yu Mincho,Hiragino Mincho ProN,serif;font-size:35px}.policy-band h2:after{content:"";border-bottom:3px solid var(--orange);width:130px;padding-top:10px;display:block}.policy-band p{color:#41516a;margin:0}.article-list.compact{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:62px;display:grid}.compact .article-row{grid-template-columns:42px minmax(0,1fr);gap:15px;min-height:92px;margin:0;padding:15px 0 14px}.compact .article-number{padding-top:8px;font-size:16px}.compact .article-number:after{display:none}.compact .article-copy h3{margin:2px 0 5px;font-size:16px;line-height:1.55}.compact .article-category,.compact .article-meta{font-size:10px}.compact .article-meta{padding:0}.site-footer{max-width:var(--content);border-top:2px solid var(--ink);justify-content:space-between;align-items:center;margin:78px auto 0;padding:35px 12px 48px;display:flex}.footer-brand{letter-spacing:.1em;font-size:24px;font-weight:800}.site-footer p{margin:0;font-size:11px}.site-footer nav{gap:38px;font-size:13px;font-weight:700;display:flex}.site-footer nav a:hover{color:var(--orange)}.article-shell{max-width:var(--content);grid-template-columns:88px minmax(0, var(--reading)) 250px;align-items:start;gap:52px;margin:52px auto 100px;display:grid}.article-folio{border-right:1px solid var(--line);min-height:310px;padding:8px 18px 0 0;font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.article-folio span,.article-folio time{color:#536987;font-size:10px;line-height:1.4;display:block}.article-folio strong{margin:9px 0 34px;font-size:29px;line-height:1;display:block}.article-folio strong:after{content:"";border-bottom:2px solid var(--ink);width:20px;margin-top:14px;display:block}.article{min-width:0}.breadcrumbs{gap:12px;margin-bottom:24px;font-size:13px;display:flex}.breadcrumbs a:hover{color:var(--orange)}.article-header{border-bottom:1px solid var(--ink);margin-bottom:42px;padding-bottom:18px}.article-kicker{color:var(--orange);margin-bottom:10px;font-size:13px;font-weight:800;display:block}.article-header h1{margin:0 0 15px;font-size:43px;line-height:1.32}.article-header>p{margin:0 0 18px;font-size:17px}.byline{border-top:1px solid var(--line-light);gap:28px;padding-top:13px;font-size:12px;display:flex}.article section{margin:0 0 50px;scroll-margin-top:25px}.article h2{border-bottom:1px solid var(--line);margin:0 0 18px;padding:0 0 9px;font-size:25px;line-height:1.4;position:relative}.article h2:before{content:"";background:var(--orange);border:0;width:34px;height:3px;position:absolute;top:auto;bottom:-2px;left:0}.article h3{margin:30px 0 8px;font-size:20px}.article p{color:#152b4c;margin:0 0 19px}.article pre{border-left:4px solid var(--orange);background:var(--soft);color:var(--ink);margin:0 0 18px;padding:14px 18px;font-size:14px;line-height:1.7;overflow-x:auto}.diagnostic-steps{margin:25px 0 0;padding:0;list-style:none}.diagnostic-steps li{border-bottom:1px dashed var(--line);grid-template-columns:38px 1fr;gap:20px;padding:14px 0;display:grid}.diagnostic-steps li>b{background:var(--ink);color:#fff;place-items:center;height:33px;display:grid}.diagnostic-steps strong,.diagnostic-steps small{display:block}.diagnostic-steps small{color:#40516d;margin-top:4px;font-size:13px}.table-scroll{width:100%;max-width:100%;overflow-x:auto}.article table{border-collapse:collapse;width:100%;min-width:650px;font-size:13px}.article th,.article td{border:1px solid var(--line);text-align:center;padding:10px 12px}.article th{background:var(--soft)}.decision-note{border-top:2px solid var(--orange);border-bottom:2px solid var(--orange);grid-template-columns:170px 1fr;margin:42px 0;padding:0;display:grid}.decision-note strong{color:var(--orange);border-right:1px solid var(--orange);place-items:center;padding:20px;display:grid}.decision-note p{margin:0;padding:19px 24px}.source-list{padding-left:22px}.source-list a{color:var(--orange);text-underline-offset:4px;text-decoration:underline}.source-note{color:#40516d;font-size:13px}.article-cta{border:1px solid var(--line);justify-content:space-between;align-items:center;gap:25px;padding:18px 24px;font-size:13px;display:flex}.article-cta a{border:2px solid var(--orange);color:var(--orange);padding:8px 18px;font-weight:800}.toc{border:0;border-left:3px solid var(--ink);background:#fff;padding:10px 0 14px 24px;position:sticky;top:25px}.toc strong{border-bottom:2px solid var(--ink);margin-bottom:14px;padding-bottom:10px;font-size:22px;display:block}.toc a{border-left:3px solid #0000;margin-left:-27px;padding:8px 0 8px 14px;font-size:13px;display:block}.toc a.active{color:var(--orange);border-left-color:var(--orange)}.toc a:hover{color:var(--orange)}.toc-mobile{display:none}.draft-note{border:1px solid var(--line);background:var(--soft);margin:36px 0;padding:18px 22px}.draft-note strong{color:var(--orange);display:block}.draft-note p{margin:4px 0 0}.plain-checks{padding-left:22px}.plain-checks li{border-bottom:1px dashed var(--line-light);padding:8px 0}.legal-page{max-width:760px;margin:70px auto 110px}.legal-page h1{border-bottom:2px solid var(--ink);padding-bottom:15px;font-size:42px;line-height:1.35}.legal-page .lead{font-size:19px}.legal-page h2{margin:42px 0 8px;font-size:24px}.operator-list{border-top:1px solid var(--line);grid-template-columns:150px 1fr;display:grid}.operator-list dt,.operator-list dd{border-bottom:1px solid var(--line);margin:0;padding:12px}.operator-list dt{background:var(--soft);font-weight:800}.text-link{color:var(--orange);text-decoration:underline}@media (max-width:1050px){.hero{grid-template-columns:1fr;padding:55px 28px}.hero-copy{max-width:720px}.notebook{min-height:390px}.content-section,.policy-band,.article-shell,.site-footer{margin-left:28px;margin-right:28px}.article-shell{grid-template-columns:60px minmax(0,1fr) 220px;gap:28px}.article-folio{padding-right:10px}.diagnosis-paths{grid-template-columns:1fr}.diagnosis-paths>a{min-height:110px}.wizard{grid-template-columns:1fr}.wizard-heading{padding:18px 20px}.wizard-question,.wizard-result{flex-direction:column;align-items:stretch;padding:22px 20px}.wizard-question>div,.wizard-actions{grid-template-columns:1fr 1fr;display:grid}.section-heading.ruled:before,.section-heading.ruled:after{display:none}}@media (max-width:760px){body{font-size:16px;line-height:1.78}.site-header{height:auto;min-height:72px;padding:12px 18px;display:block}.brand{font-size:25px}.site-nav{gap:24px;margin-top:7px;font-size:12px;overflow-x:auto}.site-nav a{white-space:nowrap;padding:4px 0}.hero{gap:40px;padding:42px 20px}.hero-copy h1{white-space:normal;font-size:44px}.hero-copy>p{font-size:16px}.desktop-only{display:none}.hero-actions{display:grid}.button{height:58px}.notebook{min-height:360px;padding-left:30px;padding-right:18px}.notebook-title{padding:10px 14px;font-size:17px}.notebook-paths>div{font-size:17px}.notebook-paths svg{width:40px;height:40px}.notebook-note{display:none}.diagnosis-section{padding:42px 20px}.section-heading h2{font-size:27px}.diagnosis-paths{gap:14px}.diagnosis-paths>a{grid-template-columns:50px 1fr 22px;padding:20px 17px}.diagnosis-paths b{font-size:23px}.content-section{margin:0;padding:55px 20px 5px}.compact .article-row{grid-template-columns:40px minmax(0,1fr);gap:17px}.article-list:not(.compact) .article-row{grid-template-columns:42px minmax(0,1fr);gap:17px}.article-list:not(.compact) .article-thumb-link{grid-area:1/1/auto/-1}.article-list:not(.compact) .article-number{grid-area:2/1}.article-list:not(.compact) .article-copy{grid-area:2/2}.thumb{height:175px}.article-copy h3{font-size:21px}.article-meta{gap:20px}.policy-band{grid-template-columns:58px 1fr;margin:55px 20px 10px}.policy-mark{height:auto}.policy-band>div:last-child{padding:24px 20px}.policy-band h2{font-size:25px;line-height:1.5}.site-footer{margin:55px 20px 0;padding:28px 0 45px;display:block}.site-footer nav{grid-template-columns:1fr 1fr;gap:15px;margin-top:28px;display:grid}.article-shell{flex-direction:column;align-items:stretch;gap:30px;margin:32px 20px 70px;display:flex}.article-folio,.toc-desktop{display:none}.toc-mobile{width:100%;margin:-10px 0 38px;padding-top:0;display:block;position:static}.breadcrumbs{white-space:nowrap;margin-bottom:20px;overflow-x:auto}.article-header h1{font-size:32px;line-height:1.36}.article-header>p{font-size:16px}.byline{gap:5px;display:grid}.decision-note{grid-template-columns:1fr}.decision-note strong{border-right:0;border-bottom:1px solid var(--orange)}.article-cta{flex-direction:column;align-items:stretch}.article-list.compact{grid-template-columns:1fr}.compact .article-row{min-height:0}.legal-page{margin:45px 20px 80px}.legal-page h1{font-size:35px}.operator-list{grid-template-columns:110px 1fr}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important}}