:root{--navy:#203b49;--green:#356650;--muted:#586d64;--line:#dfe7e1;--pale:#f1f6f0;--warm:#faf8f2}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;color:var(--navy);background:white;font-family:'Yu Gothic','Meiryo',sans-serif;font-size:16px;line-height:1.8}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #9c6e17;outline-offset:4px}.skip{position:absolute;left:12px;top:-100px;background:white;z-index:10;padding:10px}.skip:focus{top:12px}.stage{background:var(--navy);color:white;text-align:center;font-size:12px;padding:7px 12px}header{border-bottom:1px solid var(--line)}.header-inner{max-width:1180px;margin:auto;padding:22px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:12px;font-size:25px;font-weight:700;letter-spacing:.1em}.brand 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a{display:inline-flex;min-height:44px;align-items:center}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}#search-results .card{margin-bottom:16px}#search-results h2{font-size:22px}@media(max-width:1000px){.category-grid,.articles{grid-template-columns:repeat(2,1fr)}h1{font-size:32px}.tool-banner{margin:0 32px}.promise{gap:25px}}@media(max-width:640px){.header-inner{padding:16px 20px;flex-wrap:wrap;gap:14px}.brand{font-size:22px}nav{gap:12px;font-size:12px;width:100%;justify-content:space-between}.hero{padding:34px 20px;display:flex;flex-direction:column;align-items:stretch;gap:20px}h1{font-size:27px}.reading h1{font-size:27px}h2{font-size:23px}.shop-art{height:225px;align-self:center}.shop{bottom:55px}.art-sun{top:12px;right:36px}.shop-art>p{bottom:8px}.promise{display:block;padding:15px 20px;font-size:12px}.promise span{display:block;margin:4px 0}.section{padding:40px 20px}.category-grid,.articles{grid-template-columns:1fr;gap:14px}.category-card{padding:22px}.tool-banner{margin:0 20px;padding:28px 22px;display:block}.tool-banner .button{margin-top:12px;width:100%}.inputs{grid-template-columns:1fr}.footer-inner{padding:32px 20px}.reading ol{padding-left:24px}fieldset{padding:16px}td,th{padding:10px 7px;font-size:12px}.reading h2{font-size:22px}.promotion{padding:20px}.button{max-width:100%}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
:where(.search) button{flex-shrink:0;white-space:nowrap}
.news-ticker .ticker-link{font-weight:700;font-size:14px;line-height:1.5;will-change:transform}
@media(max-width:800px){.news-ticker .ticker-link{font-size:13px}}
.header-inner{padding:8px 24px;gap:16px}.header-inner .brand{font-size:20px;letter-spacing:.02em;flex-shrink:0}.brand-icon{font-size:30px}.header-inner nav{gap:15px;font-size:12px;flex-shrink:0}.news-ticker{display:flex;align-items:center;gap:10px;background:var(--navy);border-radius:7px;padding:5px 10px;min-width:0;flex:1;color:#f2d884;height:44px;font-size:12px}.ticker-label{font-size:10px;color:#fff;flex-shrink:0}.ticker-window{min-width:0;overflow:hidden;flex:1}.ticker-link{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ticker-pause{font-size:12px;padding:0;min-height:32px;width:30px;flex-shrink:0;background:#416b56}.home-shell{max-width:1180px;padding:14px 24px 18px;margin:auto}.home-shell .breadcrumb{font-size:11px;margin:0 0 12px}.home-hero{display:grid;grid-template-columns:1fr 230px;gap:25px;align-items:center}.home-hero h1{font-size:28px;line-height:1.45;margin:0 0 8px}.home-hero h1 br{display:none}.home-hero .lead{font-size:13px;line-height:1.7;margin:0}.home-hero .lead br{display:none}.home-hero .search{margin:12px 0;max-width:none}.home-chips{display:flex;gap:8px}.home-chips span{background:var(--pale);border:1px solid var(--line);border-radius:6px;font-size:11px;padding:5px 10px}.home-illustration{background:var(--warm);border-radius:50% 50% 12% 12%;padding:44px 12px;text-align:center;font-size:14px;color:var(--green)}.home-categories{margin-top:17px}.home-categories h2{font-size:19px;margin:0 0 10px}.home-categories .category-grid{grid-template-columns:repeat(3,1fr);gap:8px}.home-categories .category-card{padding:9px 12px;display:flex;align-items:center;gap:10px;min-height:58px;border-radius:7px}.home-symbol{font-size:16px;color:var(--green);background:var(--pale);width:30px;height:30px;text-align:center;border-radius:6px;flex-shrink:0}.home-categories strong{font-size:13px;display:block;line-height:1.5}.home-categories small{display:block;font-size:10px}.home-arrow{margin-left:auto;color:var(--green)}.home-shortcuts{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}.home-shortcuts a{border:1px solid var(--line);border-radius:6px;background:var(--pale);padding:9px 12px;font-size:12px;min-height:44px;display:flex;align-items:center;justify-content:space-between}.home-more{padding:0;margin:10px 0 0;border-radius:7px}.home-more summary{font-size:12px;padding:10px 12px;min-height:44px}.home-more-content{padding:20px}.home-more-content h2{font-size:21px;margin-top:20px}.home-page .footer-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 24px;font-size:11px}.home-page footer .brand{font-size:15px}.home-page footer p{margin:0}.home-page footer small{font-size:10px}.home-page footer a{min-height:32px}
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@media(max-width:640px){.reading h1.tool-title{font-size:24px}}

/* WorldScene depth layer. Geometry, content, routes and ticker timing stay unchanged. */
:root{--ws-depth-line:#d5e1d8;--ws-depth-shadow:0 1px 2px #243e3110,0 7px 18px #243e310c,0 20px 40px #243e3106;--ws-depth-raised:0 2px 4px #243e3112,0 10px 24px #243e3112,0 24px 42px #243e3109}
.portal-grid-five{grid-template-columns:repeat(5,minmax(0,1fr))}.portal-coming{cursor:default}.portal-coming .portal-icon svg{display:none}.portal-coming .portal-icon:before{content:'＋';display:block;width:24px;height:24px;text-align:center}.portal-coming .portal-open{color:#607169}.portal-grid-five .portal-card{padding-inline:14px}.portal-grid-five .portal-card h3{font-size:21px}
body{background:radial-gradient(ellipse at 8% 6%,#eef4ea8c,transparent 42%),radial-gradient(ellipse at 94% 14%,#f3ecd866,transparent 38%),linear-gradient(180deg,#fff 0%,#fcfdf9 55%,#f8faf5 100%);background-attachment:scroll}
header,.site-header{background:linear-gradient(180deg,#fff,#fcfdfb);box-shadow:0 1px 0 #ffffff inset,0 3px 15px #243e3108;border-bottom-color:var(--ws-depth-line)}
.brand-icon,.brand-symbol{text-shadow:0 2px 0 #ffffff,0 4px 8px #35665018}
.portal-card,.category-card,.home-category,.card,.app-card,.approach-grid article,.shortcut,.quick-card{background:linear-gradient(155deg,#fff 0%,#fff 62%,#f6faf5 100%);border-color:var(--ws-depth-line);box-shadow:0 1px 0 #fff inset,var(--ws-depth-shadow);position:relative;transition:box-shadow .18s ease,border-color .18s ease,transform .18s ease}
.portal-card .portal-icon,.home-symbol,.number,.home-category-icon,.portal-orbit span{background:linear-gradient(150deg,#f8fbf5,#e8f0e5);box-shadow:0 1px 0 #fff inset,0 2px 5px #35665010}
.portal-orbit{background:linear-gradient(145deg,#f7f8ef,#eaf1e3);box-shadow:0 1px 1px #fff inset,0 14px 28px #5263490d;outline:1px solid #e5ebdf}
.portal-orbit span{background:none;box-shadow:none;filter:drop-shadow(0 2px 1px #ffffff)}
.shop-art,.illustration,.home-art,.home-illustration{background:linear-gradient(145deg,#faf9f1,#ecf2e8);box-shadow:0 1px 0 #fff inset,0 12px 25px #5263490b;outline:1px solid #e6ecdf}
.shop,.car-body,.paper,.sheet,.house-art{box-shadow:0 3px 4px #334c3913,0 8px 13px #334c3910}
.search{background:linear-gradient(180deg,#fff,#fcfdfb);box-shadow:0 2px 3px #243e3105 inset,0 3px 10px #243e3107;border-color:#aebfb2}
.search input{background:transparent}
button,.button,.button-primary{box-shadow:0 1px 0 #ffffff2b inset,0 2px 3px #243e3112,0 5px 12px #243e310c}
.language-button{box-shadow:0 1px 0 #fff inset,0 2px 5px #243e3108}
.news-ticker{background:linear-gradient(125deg,#203b49,#294b50);box-shadow:0 1px 0 #ffffff18 inset,0 2px 4px #203b4914,0 5px 12px #203b490c}
.ticker-pause{box-shadow:0 1px 0 #ffffff2b inset,0 2px 4px #091e251c}
.home-shortcuts a,.home-chips span,.chips a,.chips button,.chips span,.portal-tool{background:linear-gradient(145deg,#f8fbf6,#edf4e9);box-shadow:0 1px 0 #fff inset,0 2px 5px #243e3106;border-color:var(--ws-depth-line)}
.portal-tool{background:none;box-shadow:none}
.home-more,details,fieldset,.tool-banner,.tool-panel,.conclusion,.result-panel,.promotion,.note,.calculator-panel{background:linear-gradient(135deg,#f8fbf5,#f1f6ec);box-shadow:0 1px 0 #fff inset,0 3px 8px #243e3107;border-color:var(--ws-depth-line)}
.home-more>summary{background:linear-gradient(160deg,#fff,#f5f9f1);box-shadow:0 1px 0 #fff inset;border-radius:inherit}
.home-more[open]>.section,.home-more-content{background:#ffffffc9}
.reading pre,pre.template,.template,.template-box{background:linear-gradient(140deg,#fffdf7,#f5f2e8);box-shadow:0 1px 0 #fff inset,0 3px 7px #4e422207;border-color:#e3dfd1}
input[type=number],input[type=text],input[type=date],select,textarea{box-shadow:0 1px 3px #203b4908 inset;background-color:#fff}
table{background:#ffffffb8}thead{background:linear-gradient(150deg,#f4f8f0,#e9f1e4)}
.difference,.metric,.result,.stat-card{box-shadow:0 1px 0 #fff inset,0 3px 7px #243e3107}
footer,.app-divider,.existing-app-content{background:linear-gradient(150deg,#f9fbf6,#f1f5eb);border-top-color:var(--ws-depth-line)}
footer{box-shadow:0 -1px 0 #fff inset,0 -4px 16px #243e3104}
.existing-app-content .stats{background:linear-gradient(140deg,#fff,#f8faf4);box-shadow:0 1px 0 #fff inset,var(--ws-depth-shadow);border-color:var(--ws-depth-line)}
.existing-app-content .showcase img{box-shadow:0 2px 3px #243e3112,0 12px 24px #243e3110}
@media(hover:hover) and (pointer:fine){.portal-card:hover,.category-card:hover,.home-category:hover,.card:hover,.app-card:hover{box-shadow:0 1px 0 #fff inset,var(--ws-depth-raised);border-color:#9cb39f;transform:translateY(-2px)}}
@media(max-width:640px){.portal-card,.category-card,.home-category,.card,.app-card,.approach-grid article{box-shadow:0 1px 0 #fff inset,0 2px 4px #243e310b,0 7px 15px #243e3109}.shop-art,.illustration,.home-art,.home-illustration{box-shadow:0 1px 0 #fff inset,0 6px 15px #5263490a}}
@media(max-width:1000px){.portal-grid-five{grid-template-columns:repeat(2,minmax(0,1fr))}.portal-coming{grid-column:1/-1}.portal-grid-five .portal-card{padding-inline:20px}}
@media(max-width:640px){.portal-grid-five .portal-card{padding-inline:11px}.portal-grid-five .portal-card h3{font-size:18px}.portal-coming .portal-description,.portal-coming .portal-tool{min-height:0}}
@media(prefers-reduced-motion:reduce){.portal-card,.category-card,.home-category,.card,.app-card,.approach-grid article{transition:none;transform:none!important}}
@media(forced-colors:active){*{box-shadow:none!important;text-shadow:none!important}body,header,.site-header{background:Canvas}.news-ticker{background:Canvas;border:1px solid CanvasText}}
@media print{*{box-shadow:none!important;text-shadow:none!important;filter:none!important}body,header,footer,.portal-card,.card,fieldset,.home-category,.category-card,.home-more,.note,.conclusion{background:#fff!important}a{transform:none!important}.news-ticker{background:#fff;color:#000}}