
:root{--navy:#12355f;--blue:#1e4f8f;--ink:#24394b;--muted:#536879;--soft:#edf4fb;--line:#c8d9e8;--teal:#26665e;--pale:#f6f9fc}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;line-height:1.85}a{color:var(--blue);text-underline-offset:.2em}button,input{font:inherit}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #c6840c;outline-offset:4px}svg{display:block;width:100%;height:auto}p{margin:0 0 1em}strong{font-weight:700}[hidden]{display:none!important}
.site-header{border-bottom:1px solid #e2eaf1;background:#fff;position:sticky;top:0;z-index:20}.header-inner{max-width:1120px;margin:auto;min-height:76px;padding:12px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}.logo{display:flex;align-items:center;gap:10px;color:var(--navy);text-decoration:none;font-size:21px;font-weight:800;line-height:1.4;flex-shrink:0}.logo-mark{display:grid;place-items:center;background:var(--blue);color:white;width:36px;height:36px;border-radius:7px}.logo small{display:block;font-size:10px;font-weight:500;letter-spacing:.03em}.global-nav{display:flex;gap:20px;font-size:13px;font-weight:700}.global-nav a{text-decoration:none}.mobile-menu{display:none}.menu-toggle{width:44px;height:44px;background:transparent;border:1px solid var(--line);border-radius:6px;display:grid;place-content:center;gap:5px}.hamburger-line{display:block;width:21px;height:2px;background:var(--navy)}.mobile-nav-content{position:absolute;left:0;right:0;top:100%;background:#fff;box-shadow:0 8px 14px #12355f16;padding:14px 24px}.mobile-nav-content a{display:block;padding:10px 0;text-decoration:none}.skip-link{position:absolute;left:12px;top:-80px;z-index:40;background:white;padding:12px}.skip-link:focus{top:12px}
.article{max-width:1000px;margin:auto;padding:30px 34px 72px;font-size:17px}.breadcrumb{font-size:12px;margin-bottom:27px;color:var(--muted)}.breadcrumb a{text-decoration:none}.hero{display:grid;grid-template-columns:1.3fr 1fr;align-items:center;gap:18px;margin-bottom:25px}.eyebrow{font-size:12px;color:var(--blue);font-weight:800;letter-spacing:.09em;margin-bottom:7px}.hero h1{font-size:38px;line-height:1.42;letter-spacing:.01em;margin:0 0 14px;padding-left:.5em;border-left:4px solid var(--blue);color:var(--navy)}.hero h1 .sub{display:block;font-size:22px;line-height:1.65;color:var(--blue);margin-top:8px}.hero-text{font-size:15px;color:var(--muted);margin:14px 0 0}.hero-art{padding:12px;background:linear-gradient(140deg,#f1f7fc,#fff);border-radius:20px}.hero-tag{display:inline-block;font-size:12px;padding:3px 12px;border-radius:3px;background:var(--soft);color:var(--blue);font-weight:700;margin-bottom:13px}.answer{padding:20px 25px;background:var(--soft);border:1px solid var(--line);border-top:4px solid var(--blue);border-radius:12px;margin:24px 0}.answer .answer-label{font-size:13px;font-weight:800;color:var(--blue);letter-spacing:.08em;margin:0 0 7px}.answer .answer-main{font-size:23px;line-height:1.7;font-weight:700;color:var(--navy);margin-bottom:9px}.answer .answer-scope{font-size:13px;color:var(--muted);margin:0}.ref{font-size:11px;vertical-align:super;white-space:nowrap;font-weight:400}
.checklist{border:1px solid #aebfd2;border-radius:14px;background:#f7faff;padding:24px;margin:24px 0 36px;box-shadow:0 3px 12px #12355f06}.check-heading{display:flex;align-items:center;justify-content:space-between;gap:14px}.check-heading h2{border:0;font-size:23px;margin:0;padding:0 0 0 .5em;line-height:1.55}.check-heading .eyebrow{margin-left:12px}.check-total{white-space:nowrap;color:var(--muted);font-size:12px;margin:0}.check-total strong{font-size:28px;color:var(--blue);line-height:1.4}.check-intro{font-size:14px;margin:12px 0 10px;color:var(--muted)}progress{display:block;width:100%;height:6px;appearance:none;border:0;background:#dee8f1;border-radius:20px;margin:0 0 24px;overflow:hidden}progress::-webkit-progress-bar{background:#dee8f1;border-radius:20px}progress::-webkit-progress-value{background:var(--blue);border-radius:20px}progress::-moz-progress-bar{background:var(--blue)}.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 15px}.check-phase{margin:0;min-width:0;border:1px solid var(--line);background:white;border-radius:8px;padding:7px 14px 10px}.check-phase legend{font-size:16px;font-weight:700;padding:0 5px;color:var(--navy);max-width:100%}.phase-number{color:var(--blue);font-size:12px;margin-right:8px}.phase-count{font-weight:500;font-size:11px;color:var(--muted);margin-left:10px}.check-row{display:flex;align-items:flex-start;gap:11px;padding:11px 2px;min-height:48px;cursor:pointer;font-size:14px;line-height:1.65;border-bottom:1px solid #e9eef4;overflow-wrap:anywhere}.check-row:last-child{border-bottom:0}.check-row:hover{background:#f6f9fd}.check-row input{width:22px;height:22px;flex:0 0 22px;margin:1px 0 0;accent-color:var(--blue);cursor:pointer}.check-row.is-checked{color:#526b78;background:#f3f8f7}.check-row.is-checked span{opacity:.86}.check-tools{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:15px}.save-status{font-size:12px;font-weight:700;color:var(--teal);margin:0}.save-status.is-error{color:#8b451c}.text-button{font-size:12px;color:var(--muted);background:transparent;border:0;text-decoration:underline;text-underline-offset:3px;min-height:40px;padding:7px 0;flex-shrink:0}.fineprint{font-size:12px;color:var(--muted);line-height:1.8;margin:9px 0 0}.storage-help{margin-top:5px;font-size:12px;color:var(--muted)}.storage-help summary{cursor:pointer;min-height:30px;padding:5px 0}.storage-help p{margin:5px 0 0}.reset-confirm{background:white;border:1px solid var(--line);border-radius:6px;padding:14px;margin:8px 0;font-size:13px}.reset-confirm p{margin-bottom:8px}.reset-confirm button{padding:6px 14px;min-height:40px;border:1px solid var(--line);background:white;border-radius:4px;color:var(--navy);margin-right:8px}.reset-confirm [data-reset-confirm]{background:var(--blue);color:white}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.body-section{margin:48px 0}.article h2{font-size:26px;color:var(--navy);line-height:1.55;border-bottom:2px solid var(--line);padding:0 .5em .55em;margin:0 0 23px}.article h3{font-size:20px;color:var(--navy);line-height:1.6;padding-left:.5em;margin:24px 0 12px}.article .check-heading h2{border:0;padding:0 0 0 .5em;font-size:23px;margin:0}.section-number{display:block;font-size:12px;font-weight:700;color:var(--blue);letter-spacing:.05em;margin:0 0 6px}.toc{background:#f7f9fb;border:1px solid #dae3ec;border-radius:10px;padding:17px 22px;margin:25px 0 38px;font-size:14px}.toc summary{font-weight:700;cursor:pointer;color:var(--navy);min-height:30px}.toc ol{margin:12px 0 0;padding-left:1.5em;display:grid;gap:7px}.toc a{text-decoration:none}.lead{font-size:16px}.firsthand{margin:26px 0;border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:8px;background:#f8fafc;padding:24px}.firsthand .field-label{font-size:12px;font-weight:800;color:var(--blue);margin-bottom:12px}.firsthand p:last-child{margin-bottom:0}.figure{margin:25px 0;background:var(--pale);border:1px solid #d9e3ed;border-radius:12px;overflow:hidden}.figure figcaption{padding:13px 21px 18px;font-size:13px;color:var(--muted);line-height:1.8}.repair-caption strong{font-size:16px;color:var(--navy);display:block;margin-bottom:3px}.callout{background:var(--soft);border-radius:8px;padding:18px 22px;margin:24px 0;font-size:16px}.callout .ask{font-size:21px;font-weight:700;color:var(--navy);margin:7px 0}.callout p:last-child{margin-bottom:0}.muted{color:var(--muted);font-size:14px}.sources{margin-top:44px;border-top:1px solid var(--line);padding-top:24px;font-size:13px;overflow-wrap:anywhere}.sources h2{font-size:20px}.sources ol{padding-left:1.5em}.sources li{padding-bottom:12px}.sources a{font-weight:600}.sources .source-note{font-size:12px;color:var(--muted)}.related-card{border:1px solid var(--line);border-radius:10px;padding:21px 23px;background:#f5f8fc;margin:25px 0}.related-card h3{margin:0 0 7px;padding-left:0;font-size:18px}.related-card p{font-size:14px;margin-bottom:11px;color:var(--muted)}.link-button{display:inline-block;background:var(--blue);color:#fff;padding:11px 18px;border-radius:5px;font-size:15px;line-height:1.6;text-decoration:none;font-weight:700}.link-button:hover{background:var(--navy)}.related-card.secondary{background:white}.secondary a{display:block;font-size:15px;font-weight:700;line-height:1.7;padding:8px 0}.end-links{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}.end-links .related-card{margin:0;padding:18px 20px}.end-links h3{font-size:16px}.end-links p{font-size:13px}.end-links a{display:block;font-size:14px;line-height:1.8;font-weight:700;text-decoration:none}.end-links a:hover{text-decoration:underline}.wait-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:23px 0}.wait-card{padding:20px;border:1px solid var(--line);border-radius:9px;background:#fff}.wait-card svg{width:62px;height:62px;margin-bottom:12px}.wait-card strong{display:block;color:var(--navy);margin-bottom:5px;font-size:17px}.wait-card p{font-size:14px;line-height:1.8;color:var(--muted);margin:0}.wait-card .tag{font-size:11px;color:var(--blue);font-weight:800;margin-bottom:8px}.rental-table{border-collapse:collapse;width:100%;font-size:14px;margin:22px 0}.rental-table caption{text-align:left;font-weight:700;padding:0 .5em 10px;color:var(--navy)}.rental-table th,.rental-table td{border:1px solid var(--line);padding:12px 16px;vertical-align:top;text-align:left;width:50%}.rental-table th{background:var(--soft);color:var(--navy)}.rental-table td{background:#fff}.article ul{padding-left:1.4em}.article li{margin-bottom:6px}.site-footer{background:#f5f8fb;border-top:1px solid var(--line);padding:36px 24px}.footer-inner{max-width:1060px;margin:auto}.footer-grid{display:grid;gap:26px}.footer-links{display:flex;flex-wrap:wrap;gap:12px 24px;font-size:12px}.footer-links a{text-decoration:none}.footer-note{font-size:11px;color:var(--muted);max-width:850px;margin:0}
@media(max-width:850px){.global-nav{display:none}.mobile-menu{display:block}.hero h1{font-size:32px}.hero h1 .sub{font-size:20px}.article{padding:25px 24px 55px}}
@media(max-width:600px){html{scroll-padding-top:88px}.header-inner{min-height:65px;padding:10px 18px}.logo{font-size:19px}.logo small{font-size:9px}.article{padding:21px 17px 50px;font-size:16px}.breadcrumb{font-size:11px;margin-bottom:20px}.hero{grid-template-columns:1fr;gap:12px}.hero h1{font-size:30px;line-height:1.5}.hero h1 .sub{font-size:19px}.hero-art{max-width:320px;width:100%;margin:auto;padding:0 15px}.hero-text{font-size:14px}.hero-tag{margin-bottom:9px}.answer{padding:17px 18px;margin-top:22px}.answer .answer-main{font-size:20px}.answer .answer-scope{font-size:12px}.checklist{padding:18px 14px;border-radius:11px}.check-heading{align-items:flex-start;gap:8px}.article .check-heading h2{font-size:19px;line-height:1.6}.check-heading .eyebrow{font-size:10px;margin-left:9px}.check-total{font-size:10px;line-height:1.5;padding-top:17px}.check-total strong{font-size:23px}.check-intro{font-size:12px;margin:12px 2px}.check-grid{grid-template-columns:1fr;gap:16px}.check-phase{padding:5px 12px 7px}.check-phase legend{font-size:15px}.check-row{font-size:14px;padding:11px 1px}.check-tools{align-items:flex-start;gap:8px}.save-status{padding-top:7px;font-size:11px}.text-button{font-size:11px}.fineprint,.storage-help{font-size:11px}.body-section{margin:36px 0}.article h2{font-size:22px;margin-bottom:19px}.firsthand{padding:19px 18px}.figure figcaption{padding:12px 16px 16px}.callout{padding:16px 18px}.callout .ask{font-size:19px}.end-links{grid-template-columns:1fr}.related-card{padding:18px}.link-button{font-size:14px;width:100%;text-align:center}.wait-grid{gap:10px}.wait-card{padding:14px 12px}.wait-card strong{font-size:15px}.wait-card p{font-size:12px}.rental-table th,.rental-table td{padding:10px;font-size:12px}.sources{font-size:12px}.site-footer{padding:30px 20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media print{.site-header,.site-footer,.check-tools,.storage-help,.toc{display:none}.article{max-width:none;padding:0}.checklist{box-shadow:none;break-inside:avoid}.hero-art{max-width:250px}.body-section{break-inside:auto}.check-phase,.figure,.related-card{break-inside:avoid}a{color:#12355f}}

.repair-scenes{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:20px 20px 0}.repair-scene{background:#fff;border:1px solid var(--line);border-radius:8px;padding:15px 10px 0;overflow:hidden}.repair-scene>p{font-size:16px;font-weight:700;color:var(--navy);margin:0 0 5px;text-align:center}@media(max-width:600px){.repair-scenes{grid-template-columns:1fr;padding:16px 16px 0;gap:12px}.repair-scene>p{font-size:15px}.repair-scene svg{max-width:310px;margin:auto}}

/* Main-title hierarchy: the keyword phrase itself has size and colour contrast. */
.hero h1 .title-context{display:block;font-size:25px;line-height:1.6;font-weight:700;color:#536879;letter-spacing:.02em}
.hero h1 .title-focus{display:block;font-size:48px;line-height:1.3;font-weight:800;color:#1e4f8f;margin-top:2px;letter-spacing:.02em}
.hero h1 .sub{font-size:18px;line-height:1.7;font-weight:600;color:#24394b;margin-top:12px}
@media(max-width:850px){.hero h1 .title-context{font-size:23px}.hero h1 .title-focus{font-size:42px}}
@media(max-width:600px){.hero h1 .title-context{font-size:21px}.hero h1 .title-focus{font-size:38px}.hero h1 .sub{font-size:17px;margin-top:10px}}

.article{max-width:1030px}.hero h1{font-size:30px}.hero h1 em{display:block;font-style:normal;font-size:46px;color:var(--blue);line-height:1.35}.hero h1 .sub{font-size:19px}.hero h1{padding-left:.55em}.hero-art{padding:26px}.hero-art svg{max-width:280px;margin:auto}.paper-pair{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:18px 0 0}.paper-pair div{background:#fff;padding:13px 10px;border:1px solid var(--line);border-radius:6px;text-align:center;font-size:14px;color:var(--navy);font-weight:700}.paper-pair small{display:block;font-size:11px;font-weight:400;color:var(--muted)}.hero-art>p{font-size:12px;text-align:center;margin:12px 0 0}.jump{display:inline-flex;align-items:center;gap:18px;margin-top:16px;background:var(--blue);color:white;padding:10px 20px;text-decoration:none;border-radius:7px;font-size:15px;font-weight:700;min-height:44px}.toc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.toc-grid a{display:block;background:white;border:1px solid var(--line);border-radius:8px;padding:13px;text-decoration:none;font-weight:700}.toc-grid span{display:block;font-size:12px;color:var(--muted);font-weight:400}.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:24px 0}.flow>div{border:1px solid var(--line);border-top:4px solid var(--blue);padding:17px;background:var(--pale);border-radius:8px}.flow small{color:var(--blue);font-weight:700}.flow strong{display:block;font-size:19px;color:var(--navy);margin:4px 0}.flow p{font-size:14px;margin:0}.article table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.7;margin:20px 0}.article th,.article td{border:1px solid var(--line);padding:13px 15px;text-align:left;vertical-align:top}.article thead th{background:var(--navy);color:white}.article tbody th{width:23%;color:var(--navy);background:#f4f8fc}.article td{background:white}.article caption{text-align:left;font-weight:700;color:var(--navy);font-size:15px;margin-bottom:9px}.section-lead{font-size:18px;font-weight:700;color:var(--navy)}.pill{display:inline-block;padding:1px 8px;background:#eef2f6;border:1px solid var(--line);border-radius:4px;font-size:12px;white-space:nowrap}.experience-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.experience-grid .firsthand{margin:12px 0}.personal{border:1px solid var(--line);border-left:4px solid #547996;padding:22px;border-radius:8px;margin:24px 0;background:#fff}.personal-label{font-size:13px;font-weight:700;color:var(--blue)}.article .personal h3{font-size:21px;margin-top:7px}.personal ul{padding-left:1.4em;margin-bottom:0}.personal li{margin-bottom:8px;font-size:16px}.term{font-size:14px;border-left:3px solid var(--line);padding:2px 0 2px 16px;margin:23px 0}.term p:last-child{margin-bottom:0}.related-card{display:block;text-decoration:none}.related-card strong{display:block;font-size:18px;color:var(--blue)}.related-card span{display:block;font-size:13px;color:var(--muted)}.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.related-grid .related-card{margin:0;padding:18px}.question-sample{padding:18px 22px;border-left:4px solid var(--blue);background:var(--soft);font-size:16px}.site-footer{margin-top:0}.sources{font-size:12px}.sources li{margin-bottom:4px}.article .sources h2{font-size:21px}.site-header{position:relative}.bottom-label{font-size:12px;color:var(--muted);text-align:center;margin-top:28px}.body-section{margin:46px 0}.article h3{padding-left:.5em}.article h2{padding-left:.5em}.advert{font-size:12px;color:var(--muted);margin-bottom:20px}.hero-text{max-width:34em}@media(max-width:700px){.article{padding:22px 19px 50px;font-size:16px}.hero{grid-template-columns:1fr}.hero h1{font-size:25px}.hero h1 em{font-size:36px}.hero h1 .sub{font-size:17px}.hero-art{padding:18px;max-width:470px;width:100%;margin:auto}.hero-art svg{max-width:180px}.paper-pair{margin-top:12px}.article h2{font-size:23px}.toc-grid{grid-template-columns:1fr 1fr}.flow{grid-template-columns:1fr;gap:12px}.experience-grid{grid-template-columns:1fr;gap:0}.related-grid{grid-template-columns:1fr}.article table,.article tbody,.article tr,.article td,.article tbody th{display:block;width:100%}.article thead{display:none}.article tbody tr{margin:0 0 14px;border:1px solid var(--line);border-radius:7px;overflow:hidden}.article td,.article tbody th{border:0;padding:10px 13px}.article tbody th{border-bottom:1px solid var(--line)}.article td[data-label]:before{content:attr(data-label);display:block;font-size:11px;color:var(--muted);font-weight:700}.article caption{display:block}.answer{padding:20px}.answer .answer-main{font-size:21px}.personal{padding:19px}.firsthand{padding:20px}.header-inner{padding:12px 19px}.global-nav{display:none}.hero h1 .sub{line-height:1.7}}@media print{.preview-note,.site-header,.site-footer,.jump{display:none}.article{max-width:none;padding:0}.hero-art{display:none}.hero{display:block}.body-section{break-inside:auto}.article table tr,.firsthand,.personal{break-inside:avoid}a{color:#12355f}}

.logo,.global-nav a{white-space:nowrap}


details:not([open])>p{display:none}.toc-heading{display:flex;align-items:baseline;flex-wrap:wrap;gap:6px 18px;margin-bottom:15px}.toc-heading p{margin:0}.toc-heading strong{font-size:18px;color:var(--navy)}.toc-heading .toc-hint{font-size:12px;color:var(--muted)}.toc-grid a{display:flex;align-items:flex-start;gap:10px;line-height:1.65;padding:16px}.toc-grid .toc-number{flex:none;font-size:13px;color:var(--blue);font-weight:700}.toc-grid .toc-title{font-size:15px;color:var(--navy);font-weight:700}.mini-icon{width:48px;height:48px;flex:none;color:var(--blue);margin-bottom:12px}.flow .mini-icon{width:39px;height:39px;margin:0 0 10px}.checklist{box-shadow:none;padding:22px;background:#f7faff}.checklist h3{padding:0;margin:0;color:var(--navy);font-size:22px}.checklist-head{display:flex;align-items:center;gap:12px;justify-content:space-between;margin-bottom:9px}.checklist-head .mini-icon{width:34px;height:34px;margin:0}.checklist-title{display:flex;align-items:center;gap:10px}.check-total{font-size:13px}.check-total strong{font-size:26px}.check-help{font-size:14px;margin-bottom:12px}.compare-table{margin:16px 0!important}.compare-table .check-label{display:flex;align-items:center;gap:10px;cursor:pointer;min-height:48px;font-size:16px;line-height:1.65}.check-label input{width:23px;height:23px;accent-color:var(--blue);flex:none;margin:0}.compare-table tbody th{width:29%;padding:9px 13px}.compare-table td{padding:12px 15px}.compare-table td>strong{font-size:15px;font-weight:600}.compare-table details{font-size:12px;margin-top:5px;color:var(--muted)}.compare-table summary{cursor:pointer;min-height:28px;padding:3px 0;max-width:max-content}.compare-table details p{margin:4px 0 2px;font-size:13px}.compare-table tr.is-checked th,.compare-table tr.is-checked td{background:#eef6f4}.is-checked .check-label{color:#26665e}.is-checked input{accent-color:#26665e}.checklist progress{margin:10px 0 14px}.checklist .check-tools{flex-wrap:wrap;gap:6px 16px;margin-top:8px}.checklist .save-status{font-size:12px}.checklist .text-button{margin-left:auto}.checklist .storage-help{font-size:12px}.mini-check-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px 15px;margin:18px 0}.mini-check-grid label{display:flex;align-items:center;gap:11px;min-height:48px;padding:10px 12px;border:1px solid var(--line);border-radius:6px;background:white;cursor:pointer;font-size:14px}.mini-check-grid .is-checked{background:#eef6f4;color:#26665e}.note-pair{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin:24px 0}.note-pair>div{padding:19px;border:1px solid var(--line);border-radius:10px;background:var(--pale)}.note-pair h3{padding:0;margin:0 0 12px;font-size:18px}.note-pair p{font-size:14px;margin-bottom:8px}.note-pair p:last-child{margin:0}.two-terms{display:grid;grid-template-columns:1fr 1fr;gap:10px}.two-terms div{background:#fff;padding:11px;border-radius:6px;border:1px solid var(--line)}.two-terms small{display:block;font-size:12px;color:var(--muted)}.two-terms strong{display:block;font-size:16px}.priority-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:16px 0}.priority-grid>div{border:1px solid var(--line);border-radius:8px;background:var(--pale);padding:16px}.priority-grid strong{display:block;font-size:17px;color:var(--navy)}.priority-grid p{font-size:14px;margin:7px 0 0}.experience-grid .firsthand h3{padding:0}.personal .fineprint{margin-top:12px}.cost-pair strong{display:block;font-size:19px;color:var(--navy)}.cost-pair p{margin:6px 0 0}.question-sample{border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:8px;margin:20px 0}.question-sample .ask-label{font-size:13px;color:var(--blue);font-weight:700;margin:0 0 10px;display:flex;align-items:center;gap:10px}.question-sample .mini-icon{width:33px;height:33px;margin:0}.question-sample blockquote{margin:0;font-size:16px}.quick-guide{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:16px 0}.quick-guide div{padding:14px 12px;background:white;border:1px solid var(--line);border-radius:7px}.quick-guide .mini-icon{width:34px;height:34px;margin:0 0 8px}.quick-guide small{display:block;color:var(--blue);font-size:12px;font-weight:700}.quick-guide strong{display:block;font-size:17px;line-height:1.5}.quick-guide p{font-size:13px;margin:7px 0 0}.summary-answer{background:var(--soft);border-radius:10px;padding:20px}.summary-answer>p{font-size:20px;font-weight:700;color:var(--navy);margin:0}.body-section .related-card{margin:20px 0}.related-grid .related-card{margin:0}.personal .note-label{font-size:14px}.noscript-warning{font-size:13px;color:#8b451c}.toc-grid a:hover{background:var(--soft)}.check-label:has(input:focus-visible){outline:3px solid #c6840c;outline-offset:2px}.sources h2{font-size:20px}.article{overflow-wrap:break-word}
@media(max-width:700px){.toc{padding:18px 16px}.toc-heading{display:block}.toc-heading .toc-hint{margin-top:5px}.toc-grid{grid-template-columns:1fr}.toc-grid a{padding:13px 12px}.toc-grid .toc-title{font-size:15px}.checklist{padding:17px 14px}.checklist-head{align-items:flex-start}.checklist-title{gap:8px}.checklist h3{font-size:19px}.check-total{white-space:nowrap;flex:none}.check-total strong{font-size:24px}.checklist-title .mini-icon{width:28px;height:28px}.compare-table tbody th{width:100%;padding:6px 12px}.compare-table td{padding:12px}.compare-table .check-label{font-size:16px}.compare-table td[data-label]:before{display:none}.compare-table td>strong{font-size:15px}.compare-table details{font-size:12px}.note-pair,.priority-grid{grid-template-columns:1fr}.priority-grid>div{display:block}.priority-grid .mini-icon{width:38px;height:38px;float:left;margin:0 12px 0 0}.priority-grid strong,.priority-grid p{margin-left:50px}.priority-grid p{margin-top:4px}.note-pair>div{padding:17px}.mini-check-grid{grid-template-columns:1fr;gap:6px}.mini-check-grid label{font-size:15px}.quick-guide{grid-template-columns:1fr;gap:9px}.quick-guide div{display:block}.quick-guide .mini-icon{float:left;margin:0 12px 0 0}.quick-guide small,.quick-guide strong,.quick-guide p{margin-left:46px}.quick-guide p{margin-top:4px}.quick-guide strong{font-size:17px}.personal{padding:17px}.firsthand h3{font-size:19px}.cost-pair strong{font-size:18px}.check-tools .text-button{margin-left:0}.hero h1{font-size:24px}.hero h1 em{font-size:35px}.two-terms{gap:8px}.two-terms div{padding:10px}.two-terms strong{font-size:15px}}
@media(max-width:360px){.article{padding-left:14px;padding-right:14px}.answer .answer-main{font-size:19px}.checklist-head{flex-wrap:wrap}.check-total{margin-left:38px}.checklist h3{font-size:18px}.hero h1{font-size:22px}.hero h1 em{font-size:33px}.toc-grid a{padding:11px}.two-terms{grid-template-columns:1fr}}


.example-cards{margin:24px 0}.example-caption{font-size:14px;font-weight:700;color:var(--muted);margin:0 0 12px}.example-card{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;margin:0 0 16px;padding:20px}.example-head{display:flex;align-items:center;gap:13px;margin-bottom:15px}.example-icon{width:43px;height:43px;flex:none}.article .example-head h3{padding:0;margin:0;font-size:20px;line-height:1.6}.example-pair{display:grid;grid-template-columns:1fr 1fr;gap:14px}.example-pair>div{padding:16px 18px;border-radius:8px;min-width:0}.example-contract{background:#eef4fb;border:1px solid #d2e0ee}.example-quote{background:#f7f8fa;border:1px dashed #c0cbd6}.example-label{font-size:12px;font-weight:700;color:var(--muted);margin:0 0 8px;line-height:1.6}.example-value{margin:0;color:var(--navy);line-height:1.65}.example-key{font-size:29px;font-weight:700;line-height:1.5;display:block}.example-prefix{display:block;font-size:13px;line-height:1.5}.example-value strong.example-key{display:inline}.example-suffix{font-size:13px;margin-left:5px}.example-result{font-size:18px;font-weight:700}.example-policy{font-size:17px;font-weight:700}.example-detail{font-size:14px;margin:8px 0 0;color:var(--muted);line-height:1.7}
@media(max-width:700px){.example-card{padding:16px 13px}.example-head{gap:10px;margin-bottom:12px}.example-icon{width:36px;height:36px}.article .example-head h3{font-size:18px}.example-pair{gap:9px}.example-pair>div{padding:12px 10px}.example-label{font-size:11px;margin-bottom:8px}.example-key{font-size:25px}.example-result{font-size:15px}.example-policy{font-size:15px;line-height:1.75}.example-detail{font-size:13px}.example-prefix{font-size:12px}.example-suffix{font-size:12px}.example-caption{font-size:13px}}
@media(max-width:360px){.example-pair>div{padding:11px 9px}.example-key{font-size:23px}.example-label{font-size:11px}.example-result,.example-policy{font-size:14px}.example-detail{font-size:12px}.article .example-head h3{font-size:17px}}


/* 記事12の広告CTA。発行されたa/imgは改変せず、外側から装飾する。 */
.a12-affiliate{margin:30px 0;padding:28px 30px;background:#edf4fb;border:1px solid #b9cfe5;border-top:5px solid #12355f;border-radius:12px;break-inside:avoid}
.a12-ad-label{margin:0 0 12px;color:#405c77;font-size:13px;font-weight:700;letter-spacing:.03em;line-height:1.6}
.article .a12-affiliate h3{margin:0 0 14px;padding:0;color:#12355f;font-size:23px;line-height:1.6;letter-spacing:.015em;border:0;background:transparent}
.a12-affiliate-body{margin:0 0 22px;font-size:16px;line-height:1.95;color:#24394b}
.a12-affiliate-code{position:relative;text-align:center}
.a12-affiliate-code a{display:block;width:100%;padding:17px 20px;border:2px solid #1e4f8f;border-radius:8px;background:#1e4f8f;color:#fff;font-size:18px;font-weight:700;line-height:1.65;text-align:center;text-decoration:none;box-shadow:0 3px 0 #12355f;overflow-wrap:anywhere}
.a12-affiliate-code a:hover{background:#12355f;border-color:#12355f}
.a12-affiliate-code a:focus-visible{outline:3px solid #12355f;outline-offset:4px}
.a12-affiliate-code img{width:1px;height:1px;border:0;position:absolute;bottom:0;right:0}
.a12-affiliate-note{margin:15px 0 0;color:#405c77;font-size:14px;line-height:1.8}
.a12-affiliate-support{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:18px;padding-top:16px;border-top:1px solid #c8d9e8}
.a12-affiliate-support a{font-size:14px;line-height:1.8;text-decoration:underline;text-underline-offset:.2em;color:#1e4f8f;padding:3px 0}
@media(max-width:700px){.a12-affiliate{margin:26px 0;padding:22px 18px}.article .a12-affiliate h3{font-size:21px;line-height:1.65}.a12-affiliate-body{font-size:15px;line-height:1.95;margin-bottom:20px}.a12-affiliate-code a{padding:16px 14px;font-size:17px;line-height:1.75}.a12-affiliate-support{display:flex;flex-direction:column;gap:8px}.a12-affiliate-note{font-size:13px}}
@media(max-width:360px){.a12-affiliate{padding:20px 15px}.article .a12-affiliate h3{font-size:20px}.a12-affiliate-code a{font-size:16px;padding:15px 12px}}

/* 末尾は判断に直結する関連記事を3件以内に絞る。 */
.article #summary>.related-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:700px){.article #summary>.related-grid{grid-template-columns:1fr}}


.header-inner{width:100%;max-width:1100px}.global-nav{flex-shrink:1;flex-wrap:wrap}.a13-page{max-width:1010px}.a13-page table.a13-table{display:table;width:100%}.a13-page .a13-table thead{display:table-header-group}.a13-page .a13-table tbody{display:table-row-group;width:auto}.a13-page .a13-table tr{display:table-row;width:auto;margin:0;border:0;border-radius:0}.a13-page .a13-table th,.a13-page .a13-table td{display:table-cell;width:auto;border:1px solid #c8d9e8}.a13-page .a13-table tbody th{width:44%}.a13-page .a13-table caption{display:table-caption;font-weight:400}.a13-page .firsthand>.mini-icon{float:right;width:45px;height:45px;margin:0 0 10px 15px}.a13-hero h1{font-size:25px;line-height:1.55}.a13-hero h1 .main{display:block;color:#1e4f8f;font-size:39px;line-height:1.42;margin:7px 0}.a13-hero h1 .question{display:block;font-size:30px}.a13-sub{font-size:17px;color:#536879;margin-top:18px}.a13-page .hero-art{margin:0}.a13-page .answer-main{font-size:23px}.a13-page .answer-main strong{color:#1e4f8f}.a13-page .toc-heading{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 18px}.a13-page .toc-heading h2{font-size:20px;border:0;margin:0;padding:0}.a13-page .toc-heading p{font-size:12px;margin:0;color:#536879}.a13-toc{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:16px}.a13-toc a{display:flex;align-items:center;gap:9px;background:#fff;border:1px solid #cfdeeb;padding:13px 11px;min-height:62px;font-size:14px;font-weight:700;border-radius:8px}.a13-toc small{font-size:12px;color:#708ba8}.a13-page .toc{padding:22px;margin:32px 0}.a13-page .body-section{margin:50px 0}.a13-page h2{padding-left:.5em}.a13-page h3{padding-left:.5em}.a13-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:22px 0}.a13-card{border:1px solid #c8d9e8;border-radius:12px;padding:23px;background:#f7faff;min-width:0}.a13-card .mini-icon{width:53px;height:53px;margin-bottom:12px}.a13-card h3{font-size:20px;padding:0;margin:0 0 8px}.a13-card p{font-size:15px;margin:0}.a13-card small{display:block;font-size:12px;color:#536879;margin-bottom:8px}.a13-card.white{background:#fff}.a13-card.personal{border-top:4px solid #1e4f8f}.a13-card.personal h3{font-size:23px}.a13-page .firsthand{padding:24px}.a13-focus{font-size:23px;line-height:1.65;font-weight:700;color:#12355f}.a13-page .mini-icon{flex-shrink:0}.a13-note{border-left:3px solid #adc4da;padding:11px 15px;font-size:14px;background:#f6f8fb;margin:18px 0}.a13-table{width:100%;border-collapse:collapse;font-size:14px;table-layout:fixed;margin:20px 0 12px}.a13-table th,.a13-table td{padding:14px 12px;border:1px solid #c8d9e8;text-align:left;vertical-align:middle;overflow-wrap:anywhere}.a13-table thead th{background:#12355f;color:#fff;font-size:15px}.a13-table thead th:first-child{width:44%}.a13-table tbody th{font-weight:600;background:#f5f8fc}.a13-table td{background:#fff}.a13-table .varies{color:#1e4f8f;background:#edf4fb;font-weight:700}.a13-table .excluded{color:#665746}.a13-table caption{caption-side:bottom;text-align:left;font-size:12px;color:#536879;padding:10px 1px}.a13-difference{padding:19px 22px;border:1px solid #c8d9e8;border-radius:10px;margin:20px 0;background:#f7faff}.a13-difference h3{padding:0;margin:0 0 10px;font-size:19px}.a13-difference p{font-size:14px}.a13-difference p:last-child{margin:0}.a13-related{display:flex;align-items:center;gap:17px;text-decoration:none;padding:20px 22px;border:1px solid #c8d9e8;border-radius:10px;background:#f5f8fc;margin:22px 0;line-height:1.6}.a13-related .mini-icon{width:43px;height:43px}.a13-related small{display:block;color:#536879;font-size:12px;margin-bottom:4px}.a13-related strong{font-size:17px;color:#1e4f8f}.a13-related:hover{background:#eaf2fb;border-color:#1e4f8f}.a13-related.primary{border-left:5px solid #1e4f8f}.a13-end{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}.a13-end .a13-related{margin:0;padding:18px;display:block}.a13-end .mini-icon{width:37px;height:37px;margin-bottom:11px}.a13-end strong{font-size:15px}.a13-checklist{padding:21px 24px;margin:24px 0}.a13-checklist .check-heading h3{padding:0;margin:0;font-size:21px}.a13-checklist progress{margin:15px 0}.a13-check{display:flex;gap:12px;align-items:flex-start;padding:11px 0;border-bottom:1px solid #dce5ee;font-size:15px;cursor:pointer;min-height:48px}.a13-check input{width:22px;height:22px;margin:2px 0 0;flex-shrink:0;accent-color:#1e4f8f}.a13-check.is-checked{background:#ebf5f2}.a13-scope{font-size:13px;color:#536879}.a13-step{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:24px 0}.a13-step div{border:1px solid #c8d9e8;border-radius:9px;padding:20px;background:#fff}.a13-step .mini-icon{width:44px;height:44px;margin-bottom:9px}.a13-step small{font-size:12px;color:#536879}.a13-step strong{display:block;font-size:18px;color:#12355f;margin:5px 0}.a13-step p{font-size:13px;margin:0}.a13-figure{margin:24px 0;padding:18px 20px;border:1px solid #d4e1ec;border-radius:12px;background:#fafcff}.a13-legend{display:flex;gap:15px;flex-wrap:wrap;font-size:13px;margin:14px 0 8px}.a13-legend span:before{content:"";display:inline-block;width:15px;height:12px;background:#a7c7ed;border:1px solid #12355f;margin-right:7px}.a13-legend span:last-child:before{background:#dae7e0;border-style:dashed}.a13-figure figcaption{font-size:12px;color:#536879}.a13-quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:22px 0}.a13-quote{border:1px solid #c8d9e8;border-radius:10px;padding:20px;background:white}.a13-quote strong{display:block;font-size:23px;color:#1e4f8f;margin:5px 0}.a13-quote p{margin:0;font-size:14px}.a13-quote .mini-icon{width:45px;height:45px;margin-bottom:10px}.a13-page .firsthand .field-label{font-size:13px}.a13-page .source-note{font-size:12px}.a13-page .sources h2{font-size:20px}.a13-page .article-meta{font-size:12px;color:#536879;margin-bottom:24px}.a13-page details summary{cursor:pointer;font-weight:600}.a13-page details p{margin-top:12px}.a13-page .sources li{font-size:13px}.a13-summary{background:#12355f;color:white;padding:24px;border-radius:12px;margin:24px 0}.a13-summary strong{display:block;font-size:22px;margin-bottom:8px}.a13-summary p{font-size:15px;margin:0}.a13-page .a13-summary a{color:#fff}
@media(max-width:700px){.a13-page{padding:23px 20px 50px;font-size:16px}.a13-hero{grid-template-columns:1fr}.a13-hero h1{font-size:21px}.a13-hero h1 .main{font-size:32px}.a13-hero h1 .question{font-size:25px}.a13-hero .hero-art{width:min(100%,330px);justify-self:center;padding:8px}.a13-page .body-section{margin:39px 0}.a13-page h2{font-size:23px}.a13-page .answer{padding:19px}.a13-page .answer-main{font-size:20px}.a13-toc{grid-template-columns:1fr 1fr}.a13-grid,.a13-step,.a13-end{grid-template-columns:1fr}.a13-card{padding:20px}.a13-card .mini-icon{width:45px;height:45px}.a13-page .firsthand{padding:20px}.a13-page .toc{padding:18px}.a13-table th,.a13-table td{padding:12px 8px;font-size:12px}.a13-table thead th{font-size:13px}.a13-table thead th:first-child{width:43%}.a13-checklist{padding:19px}.a13-checklist .check-heading h3{font-size:18px}.a13-check{font-size:14px}.a13-checklist .check-tools{align-items:flex-start}.a13-related{padding:17px;gap:12px}.a13-related strong{font-size:15px}.a13-end .a13-related{display:flex}.a13-end .mini-icon{margin:0}.a13-step div{display:block;padding:18px}.a13-step svg{float:left;margin-right:13px}.a13-step strong{margin:2px 0}.a13-quote-grid{gap:10px}.a13-quote{padding:16px 12px}.a13-quote strong{font-size:20px}.a13-quote p{font-size:13px}.a13-figure{padding:12px}.a13-focus{font-size:20px}.a13-difference{padding:17px}.a13-sub{font-size:15px}}
@media(max-width:350px){.a13-page{padding-left:15px;padding-right:15px}.a13-hero h1 .main{font-size:28px}.a13-toc{grid-template-columns:1fr}.a13-quote-grid{grid-template-columns:1fr}.a13-checklist{padding:16px}.a13-table th,.a13-table td{padding:10px 6px}.a13-related .mini-icon{width:34px;height:34px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Article 13 v2: balanced hero, readable conclusions, natural sedan diagram. */
.a13-page .a13-hero{grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);gap:16px}
.a13-page .a13-hero .hero-art{width:100%;max-width:none;padding:0;background:none;min-width:0}
.a13-page .a13-hero .hero-art svg{width:100%;max-width:none;margin:0}
.a13-page .a13-hero h1 .question{font-size:34px}
.a13-page .a13-sub{margin-bottom:0}
.a13-page .a13-answer-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:12px 0 16px}
.a13-page .a13-answer-choice{padding:15px 20px;background:white;border-left:4px solid #1e4f8f;border-radius:7px;margin:0}
.a13-page .a13-answer-choice>span{display:block;font-size:16px;font-weight:500;color:#344b60;line-height:1.6}
.a13-page .a13-answer-choice>strong{display:block;font-size:34px;font-weight:800;line-height:1.4;letter-spacing:.025em;color:#1e4f8f;margin-top:6px}
.a13-page .a13-answer-choice:last-child{border-left-color:#6a839b}
.a13-page .a13-answer-choice:last-child>strong{color:#12355f}
.a13-page .a13-answer-choice small{font-size:15px;font-weight:600;letter-spacing:0;margin-left:10px;color:#526879}
.a13-page .a13-toc{grid-template-columns:1fr 1fr}
.a13-page .a13-toc a{align-items:baseline;padding:13px 14px;min-height:58px;font-size:14px;line-height:1.6}
.a13-page .a13-toc a:last-child{grid-column:auto}.a13-page .a13-toc a>span{min-width:0;flex:1;overflow-wrap:anywhere}
.a13-page .a13-figure svg{max-width:760px;margin:auto}
@media(max-width:700px){
 .a13-page .a13-hero{grid-template-columns:1fr;gap:8px}
 .a13-page .a13-hero .hero-art{width:100%;max-width:360px;justify-self:center;margin:0 auto}
 .a13-page .a13-hero h1 .question{font-size:28px}
 .a13-page .a13-answer-grid{grid-template-columns:1fr;gap:10px;margin:12px 0}
 .a13-page .a13-answer-choice{padding:13px 16px}
 .a13-page .a13-answer-choice>span{font-size:14px}
 .a13-page .a13-answer-choice>strong{font-size:30px;margin-top:3px}
 .a13-page .a13-answer-choice small{font-size:14px}
 .a13-page .a13-toc{grid-template-columns:1fr;gap:8px}
 .a13-page .a13-toc a{font-size:14px;min-height:54px;padding:12px}
}

.a13-car-direction{display:flex;justify-content:space-between;margin:2px 9px 11px;color:#536879;font-size:13px;font-weight:600}

.header-inner{display:block}.header-inner::after{content:"";display:table;clear:both}.header-inner>.logo{float:left;margin-top:8px}.global-nav{display:block;float:right;margin-top:14px}.global-nav a{display:inline-block}.global-nav a+a{margin-left:20px}.mobile-menu{float:right}.menu-toggle{display:flex;flex-direction:column;align-items:center;justify-content:center}.hamburger-line{flex:none}@media(max-width:850px){.global-nav{display:none}.header-inner>.logo{margin-top:4px}}.article13-byline{font-size:12px;color:var(--muted);margin:12px 0}.article13-byline a{text-decoration:none}
