@charset "UTF-8";
:root{--ink:#17364d;--muted:#617888;--teal:#0d7882;--teal-soft:#eaf7f6;--rose:#dd3865;--rose-soft:#fff1f5;--border:#dbe7ed;--surface:#fff;--canvas:#f3f7fa;--navy:#14384b;--shadow:0 8px 28px #193d5510;color-scheme:light;font-family:"Noto Sans JP","Yu Gothic UI","Meiryo",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-synthesis:none}
*{box-sizing:border-box}html{scroll-padding-top:94px;scroll-behavior:smooth}body{margin:0;background:var(--canvas);color:var(--ink);font-size:14px;line-height:1.8}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #d87025;outline-offset:4px}[hidden]{display:none!important}.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}.skip{position:fixed;left:20px;top:-90px;z-index:200;background:white;padding:10px 18px;border-radius:8px}.skip:focus{top:12px}.site-header{height:84px;position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:34px;padding:0 34px;background:#fffffffa;border-bottom:1px solid var(--border);backdrop-filter:blur(12px)}.brand{color:var(--ink);display:flex;align-items:center;gap:12px;white-space:nowrap;min-width:222px;line-height:1.35}.brand:hover{text-decoration:none}.brand>span{display:grid;place-items:center;width:40px;height:40px;background:#fb3b69;color:#fff;font-size:20px;font-weight:800;border-radius:13px}.brand strong{font-size:17px}.brand small{display:block;font-size:10px;letter-spacing:.08em;margin-top:4px;color:var(--muted);font-weight:500}.search{max-width:520px;flex:1;display:flex;gap:9px;align-items:center;border:1px solid var(--border);border-radius:11px;background:var(--canvas);height:43px;padding:0 8px 0 13px}.search>span{font-size:24px;line-height:1;color:var(--teal)}.search input{min-width:0;width:100%;border:0;background:transparent;color:var(--ink);font-size:12px;outline:none;height:100%}.search:focus-within{outline:2px solid var(--teal);outline-offset:2px}.search button{border:0;background:white;color:var(--teal);padding:4px 8px;font-size:11px;border-radius:6px}.header-links{display:flex;align-items:center;gap:20px;margin-left:auto;font-size:12px;white-space:nowrap}.header-links>a{color:var(--muted)}#menu-toggle{display:none}.guide-layout{display:grid;grid-template-columns:254px minmax(0,1fr);max-width:1600px;margin:auto}.sidebar{height:calc(100vh - 84px);position:sticky;top:84px;overflow:auto;padding:26px 16px 22px 24px;border-right:1px solid var(--border);scrollbar-width:thin;background:#f7fafc}.nav-heading{color:#7d909c;font-size:10px;font-weight:800;letter-spacing:.15em;margin:25px 10px 8px}.nav-heading:first-child{margin-top:0}.nav-link{display:flex;align-items:center;gap:9px;color:#446376;font-size:12px;line-height:1.6;padding:9px 11px;border-radius:8px;margin:3px 0}.nav-link:hover{background:#eaf1f4;text-decoration:none}.nav-link[aria-current=page]{background:var(--teal-soft);color:#0a6571;font-weight:700;box-shadow:inset 3px 0 var(--teal)}.nav-link .nav-icon{font-size:15px;min-width:19px;text-align:center}.sidebar-note{border:1px solid var(--border);border-radius:10px;padding:15px 13px;margin:26px 5px 0;background:white;font-size:11px}.sidebar-note>span{font-weight:700}.sidebar-note p{color:var(--muted);font-size:11px;line-height:1.8;margin:6px 0 10px}main{min-width:0;padding:34px 42px 40px}main:focus{outline:none}.page-width{max-width:1080px;margin:auto}.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:11px;color:#7b8f9d;margin:0 0 22px}.breadcrumb a{color:#557886}.eyebrow{color:var(--teal);font-size:10px;letter-spacing:.2em;font-weight:800;margin:0 0 12px}h1{font-size:clamp(26px,3vw,39px);line-height:1.5;letter-spacing:-.045em;margin:0 0 14px;font-weight:750}h2{font-size:22px;line-height:1.5;margin:0 0 13px;letter-spacing:-.02em}h3{font-size:16px;margin:0 0 10px;line-height:1.7}.intro{max-width:780px;font-size:14px;color:var(--muted);line-height:1.95;margin:0 0 26px}.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;align-items:center;background:linear-gradient(115deg,#fdfdff,#edf6f7 70%);border:1px solid var(--border);padding:38px;border-radius:20px;box-shadow:var(--shadow);position:relative;overflow:hidden}.hero:before{content:"";position:absolute;inset:0 auto 0 0;width:4px;background:linear-gradient(var(--teal),#94c2c5)}.hero h1{font-size:36px;line-height:1.5}.hero .intro{font-size:13px;margin-bottom:20px}.hero-art{width:100%;height:auto}.hero-note{font-size:10px;color:#65858f;margin:12px 0 0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:white;border:1px solid var(--border);border-radius:9px;color:var(--ink);padding:10px 17px;font-weight:650;font-size:12px;text-align:center;line-height:1.5}.btn:hover{text-decoration:none;background:#f5f9fb}.btn-primary{background:var(--teal);border-color:var(--teal);color:white;box-shadow:0 6px 15px #0d78821c}.btn-primary:hover{background:#086574}.btn-quiet{background:transparent;border-color:transparent;color:var(--muted)}.buttons{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:15px;margin:36px 0 17px}.section-heading h2{margin-bottom:3px}.section-heading p{margin:0;color:var(--muted);font-size:12px}.section-heading>a{font-size:12px;white-space:nowrap}.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.topic-card{display:flex;flex-direction:column;min-width:0;background:white;border:1px solid var(--border);border-radius:13px;padding:22px;color:var(--ink);box-shadow:0 4px 15px #223f5210;transition:transform .15s,border-color .15s}.topic-card:hover{text-decoration:none;border-color:#8cbac3;transform:translateY(-2px)}.topic-card .icon{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:var(--teal-soft);font-size:19px;color:var(--teal);margin-bottom:15px}.topic-card:nth-child(3n+2) .icon{background:#f1effc;color:#7760aa}.topic-card:nth-child(3n) .icon{background:var(--rose-soft);color:var(--rose)}.topic-card h3{font-size:14px;margin-bottom:8px}.topic-card p{font-size:12px;line-height:1.85;color:var(--muted);margin:0 0 18px}.topic-card .card-end{font-size:10px;display:flex;justify-content:space-between;gap:10px;color:var(--teal);margin-top:auto}.strip{margin-top:26px;background:#eaf1f6;border:1px solid #d4e2eb;border-radius:12px;padding:18px 22px;display:flex;align-items:center;justify-content:space-between;gap:20px}.strip p{margin:3px 0 0;color:var(--muted);font-size:12px}.strip strong{font-size:14px}.article-content{display:grid;gap:19px}.article-section{background:white;border:1px solid var(--border);border-radius:14px;padding:28px;min-width:0}.article-section h2{font-size:19px;color:#19465b;margin-bottom:16px}.article-section p{font-size:13px;line-height:2;margin:0 0 15px}.article-section p:last-child{margin-bottom:0}.article-section ol,.step-list{padding-left:23px;margin:0}.article-section li,.step-list li{padding-left:6px;margin-bottom:14px;font-size:13px;line-height:1.95}.article-section li::marker,.step-list li::marker{color:var(--teal);font-weight:700}.note{border-left:3px solid #dab77e;background:#fff8e9;padding:14px 17px;color:#796246;font-size:12px!important;line-height:1.85!important;margin-top:18px!important;border-radius:0 8px 8px 0}.note-teal{background:var(--teal-soft);border-color:#66aab0;color:#346b73}.article-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:19px}.article-links a{font-size:12px;padding:6px 0}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:12px}th{text-align:left;background:#edf4f7;color:#3a5a6c;white-space:nowrap}td,th{border:1px solid var(--border);padding:13px 15px;vertical-align:top}td:first-child{min-width:130px;color:var(--teal);font-weight:600}.overview-manual{border:1px solid var(--border);border-radius:12px;background:white;margin:0 0 24px;padding:0 22px}.overview-manual>summary{padding:18px 0;font-weight:650;cursor:pointer;color:var(--teal)}.overview-manual>div{border-top:1px solid var(--border);padding:20px 0}.overview-manual .article-section{padding:0;border:0;margin-bottom:22px}.page-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.page-card{background:white;border:1px solid var(--border);border-radius:11px;padding:19px 20px;color:var(--ink);display:flex;align-items:center;gap:16px}.page-card:hover{border-color:#8cbac3;text-decoration:none}.page-card small{display:block;color:var(--muted);font-size:11px;margin-top:5px}.page-card strong{font-size:13px}.page-card>span:last-child{margin-left:auto;color:var(--teal)}.page-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 22px}.page-tabs a{font-size:11px;padding:8px 12px;border:1px solid var(--border);border-radius:8px;background:white;color:#5a7583}.page-tabs a[aria-current=page]{background:var(--navy);border-color:var(--navy);color:#fff}.feature-list{display:grid;gap:12px}.feature{background:white;border:1px solid var(--border);border-radius:12px;padding:0 23px}.feature>summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:15px;align-items:center;padding:18px 0}.feature>summary::-webkit-details-marker{display:none}.feature>summary:after{content:"+";font-size:23px;color:var(--teal)}.feature[open]>summary:after{content:"−"}.feature-title{font-weight:700;font-size:14px}.feature-subtitle{display:block;font-weight:400;font-size:12px;line-height:1.8;color:var(--muted);margin-top:5px}.feature-body{border-top:1px solid var(--border);padding:21px 0}.feature-meta{font-size:11px;color:var(--muted);margin:0 0 17px}.feature-body h3{font-size:12px;color:var(--teal);margin-top:21px}.feature-result{padding:14px 17px;background:var(--teal-soft);border-radius:8px;color:#2a626c;font-size:12px;line-height:1.9}.feature-result strong{display:block;font-size:10px;letter-spacing:.07em;margin-bottom:4px}.feature-link{display:block;text-align:right;margin:14px 0 0;font-size:10px}.quick-nav{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:25px}.quick-nav a{font-size:11px;padding:7px 12px;border:1px solid var(--border);border-radius:99px;background:white}.media{margin:20px 0 26px;border:1px solid var(--border);background:white;border-radius:13px;overflow:hidden}.media button{display:block;width:100%;border:0;background:#edf3f7;padding:0;text-align:left}.media img{display:block;width:100%;height:auto;max-height:390px;object-fit:cover;object-position:top}.media figcaption{padding:11px 16px;font-size:10px;color:#64808f;display:flex;justify-content:space-between;gap:15px}.media figcaption span:last-child{color:var(--teal);white-space:nowrap}.journey-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:20px;align-items:start}.journey-outline{background:white;border:1px solid var(--border);border-radius:12px;padding:18px}.journey-outline h2{font-size:13px;margin-bottom:14px}.journey-outline a{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:11px;padding:10px 7px;margin:3px 0;border-radius:7px;line-height:1.7}.journey-outline a[aria-current=step]{background:var(--teal-soft);color:var(--teal);font-weight:700}.step-num{width:22px;height:22px;display:grid;place-items:center;border:1px solid var(--border);border-radius:7px;flex:none;font-size:10px}.is-checked .step-num{background:var(--teal);color:white;border-color:var(--teal)}.journey-card{background:white;border:1px solid var(--border);border-radius:14px;padding:29px;box-shadow:var(--shadow)}.journey-card h2{font-size:22px}.journey-location{font-size:11px;line-height:1.8;color:var(--teal);background:var(--teal-soft);padding:10px 13px;border-radius:8px;margin-bottom:20px}.journey-body{font-size:14px;line-height:2.1;margin:20px 0 23px}.self-check{display:flex;align-items:flex-start;gap:11px;padding:16px;background:#f4f8fa;border:1px solid var(--border);border-radius:10px;font-size:12px;cursor:pointer}.self-check input{width:18px;height:18px;flex:none;margin-top:3px;accent-color:var(--teal)}.self-check small{display:block;color:var(--muted);font-size:10px;margin-top:6px}.journey-controls{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:27px}.journey-progress{width:100%;height:6px;margin:10px 0 6px;accent-color:var(--teal)}.progress-caption{font-size:10px;color:var(--muted)}.journey-complete{background:var(--teal-soft);padding:16px;margin-top:20px;border-radius:9px;font-size:12px;color:#1f6570}.practice-note{font-size:12px;line-height:1.9;padding:17px 20px;border:1px solid #c9dee5;background:#edf7f8;color:#466d7a;border-radius:11px;margin:0 0 25px}.search-result{display:block;background:white;border:1px solid var(--border);border-radius:11px;padding:20px;margin-bottom:12px;color:var(--ink)}.search-result:hover{text-decoration:none;border-color:#8ebbc2}.search-result h2{font-size:15px;margin:6px 0}.search-result small{font-size:10px;color:var(--teal)}.search-result p{font-size:12px;color:var(--muted);margin:0}.empty{border:1px dashed #bed2dd;border-radius:13px;text-align:center;padding:50px 25px;background:white}.empty h2{font-size:18px}.empty p{color:var(--muted);font-size:13px}.glossary{display:grid;grid-template-columns:1fr 1fr;gap:14px}.glossary>div{background:white;border:1px solid var(--border);border-radius:11px;padding:20px}.glossary dt{font-size:14px;font-weight:700;color:var(--teal);margin-bottom:9px}.glossary dd{font-size:12px;line-height:1.9;color:var(--muted);margin:0}.page-footer{margin-top:42px;padding-top:20px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:18px;font-size:10px;color:#81929e}.page-footer a{font-size:11px}.loading{padding:70px;text-align:center;color:var(--muted)}dialog{width:min(1280px,96vw);max-height:92vh;overflow:auto;border:0;border-radius:13px;padding:18px;box-shadow:0 20px 100px #15384b50;background:#fff;color:var(--ink)}dialog::backdrop{background:#102e45a6;backdrop-filter:blur(3px)}.dialog-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:15px}.dialog-toolbar strong{font-size:13px}.dialog-toolbar button{border:1px solid var(--border);border-radius:7px;background:white;padding:7px 12px;color:var(--ink);font-size:12px}dialog img{display:block;width:100%;height:auto}dialog p{font-size:11px;color:var(--muted)}.noscript{margin:30px;padding:25px;border:1px solid var(--border);background:white}
@media(max-width:1180px){.site-header{padding:0 23px;gap:23px}.brand{min-width:200px}.guide-layout{grid-template-columns:232px minmax(0,1fr)}.sidebar{padding-left:16px}main{padding:28px}.hero{padding:27px}.hero h1{font-size:30px}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.journey-layout{grid-template-columns:205px minmax(0,1fr)}.journey-card{padding:23px}}
@media(max-width:900px){.site-header{height:75px;gap:15px;padding:0 18px}.brand{min-width:auto}.brand strong{font-size:15px}.brand small{font-size:9px}.brand>span{width:34px;height:34px}.header-links>a{display:none}#menu-toggle{display:block;border:1px solid var(--border);background:white;border-radius:8px;padding:7px 12px;font-size:12px;color:var(--ink)}.guide-layout{grid-template-columns:1fr}.sidebar{display:none;position:fixed;top:75px;left:0;bottom:0;z-index:35;height:calc(100vh - 75px);width:min(330px,88vw);box-shadow:20px 0 60px #13344d35;background:#f6fafc;padding:20px}.sidebar.is-open{display:block}main{padding:28px}.hero-art{max-height:230px}.hero h1{font-size:31px}.hero{grid-template-columns:1.15fr .85fr}.journey-outline{position:static}.page-footer{font-size:9px}}
@media(max-width:600px){.site-header{height:auto;min-height:112px;display:grid;grid-template-columns:1fr auto;gap:9px;padding:13px 18px}.brand{grid-column:1}.header-links{grid-column:2;grid-row:1}.search{grid-row:2;grid-column:1/-1;width:100%;max-width:none;height:36px}.sidebar{top:112px;height:calc(100vh - 112px)}main{padding:22px 16px}.breadcrumb{font-size:10px;margin-bottom:17px}.hero{grid-template-columns:1fr;gap:8px;padding:25px}.hero h1{font-size:30px}.hero-art{max-height:190px}.hero-note{font-size:9px}.topic-grid,.page-grid,.glossary{grid-template-columns:1fr}.topic-card{padding:19px}.topic-card .icon{margin-bottom:11px}.section-heading{align-items:start;gap:10px}.section-heading h2{font-size:20px}.section-heading>a{font-size:10px}.strip{flex-direction:column;align-items:start;padding:18px}.article-section{padding:22px 19px}.article-section h2{font-size:18px}.article-section li,.article-section p{font-size:12px}.quick-nav a{font-size:10px}.feature{padding:0 17px}.feature-title{font-size:13px}.feature-subtitle{font-size:11px}.journey-layout{grid-template-columns:1fr;gap:15px}.journey-outline{padding:15px}.journey-outline nav{display:flex;overflow:auto;gap:6px;scrollbar-width:thin;padding-bottom:5px}.journey-outline a{min-width:160px;max-width:180px;padding:8px;flex-shrink:0}.journey-outline h2{margin-bottom:7px}.journey-card{padding:23px 20px}.journey-card h2{font-size:21px}.journey-body{font-size:13px}.journey-controls .btn{padding:10px 12px}.page-footer{flex-wrap:wrap}.intro{font-size:13px}h1{font-size:29px}.media figcaption{font-size:9px}.media img{max-height:240px}dialog{padding:12px}.article-links{gap:6px 16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
@media print{.site-header,.sidebar,.breadcrumb,.buttons,.journey-controls,.page-footer,.feature-link,.quick-nav,.page-tabs{display:none!important}.guide-layout{display:block}main{padding:0}body{background:white;font-size:12px}.article-section,.feature,.topic-card{break-inside:avoid;box-shadow:none;border:1px solid #ddd}.hero{display:block}.hero-art{max-width:350px}.feature>summary:after{display:none}.feature-body{display:block}.journey-layout{display:block}.journey-outline{display:none}}
.action-return{margin-top:22px}.journey-outline,.journey-card{min-width:0}.search button{white-space:nowrap;flex:none}
/* Remove this rollout note when the refreshed extension is approved for distribution. */
.guide-version-note{margin:0 0 20px;padding:10px 14px;border:1px solid #d9e5ed;border-radius:10px;background:#eef5f9;color:#4b6476;font-size:12px;line-height:1.7}
