:root{
  --bg:#f7f8fa;
  --paper:#ffffff;
  --ink:#1f2933;
  --muted:#5e6a75;
  --line:#d9e0e7;
  --brand:#0f4c81;
  --brand2:#1d6fa5;
  --accent:#b75d0b;
  --soft:#eaf3f9;
  --soft2:#f5efe8;
  --dark:#132233;
  --shadow:0 12px 30px rgba(20,37,54,.08);
  --radius:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Hiragino Sans","Yu Gothic",Meiryo,sans-serif;color:var(--ink);background:var(--bg);line-height:1.82;letter-spacing:.015em}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}.container{width:min(1120px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:78px}.brand{display:flex;align-items:center;gap:12px;color:var(--dark);text-decoration:none}.brand img{width:176px;display:block}.brand-sub{font-size:11px;color:var(--muted);font-weight:750;line-height:1.25;letter-spacing:.08em;text-transform:uppercase}.nav{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;justify-content:flex-end;font-size:14px;font-weight:700}.nav a{color:var(--dark)}.nav a.active{color:var(--brand)}.nav .cta{background:var(--brand);color:#fff;border-radius:999px;padding:9px 14px}.nav .cta:hover{text-decoration:none;background:#093b67}
.hero{background:linear-gradient(135deg,#eef6fb 0%,#fff 56%,#f5efe9 100%);padding:76px 0 54px;border-bottom:1px solid var(--line)}.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center}.eyebrow{font-size:13px;font-weight:850;color:var(--brand);letter-spacing:.1em;text-transform:uppercase;margin-bottom:12px}h1{font-size:clamp(32px,5vw,54px);line-height:1.22;margin:0 0 20px;color:var(--dark);letter-spacing:.02em}h2{font-size:clamp(25px,3.6vw,36px);line-height:1.35;margin:0 0 18px;color:var(--dark)}h3{font-size:22px;line-height:1.45;margin:0 0 12px;color:var(--dark)}h4{font-size:17px;margin:22px 0 6px;color:var(--dark)}.lead{font-size:18px;color:#344352;margin:0 0 24px}.muted{color:var(--muted)}.button-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 18px;font-weight:800;border:1px solid var(--brand);background:var(--brand);color:#fff}.btn.secondary{background:#fff;color:var(--brand)}.btn:hover{text-decoration:none;filter:brightness(.97)}
.hero-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}.hero-card strong{display:block;margin-bottom:8px;color:var(--dark)}.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.badge{display:inline-flex;background:var(--soft);border:1px solid #cfe3f0;color:#164b70;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:800}
.section{padding:62px 0}.section.compact{padding:38px 0}.section.paper{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.section-title{max-width:860px;margin-bottom:28px}.section-title p{margin:0;color:var(--muted)}.grid{display:grid;gap:22px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.card.soft{background:var(--soft)}.card.soft2{background:var(--soft2)}.card .label{font-size:12px;font-weight:850;color:var(--accent);letter-spacing:.08em;margin-bottom:8px;text-transform:uppercase}.card p:last-child{margin-bottom:0}.number{width:36px;height:36px;border-radius:50%;background:var(--brand);color:#fff;font-weight:850;display:inline-flex;align-items:center;justify-content:center;margin-bottom:12px}.core-diagram{display:grid;grid-template-columns:1fr 1.22fr 1fr;gap:18px;align-items:stretch;margin-top:20px}.core-diagram .main{border:2px solid var(--brand);background:#fff}.core-diagram .side{background:#fbfdff}.core-diagram small{display:block;color:var(--muted);font-weight:700;margin-top:6px}.list-clean{padding-left:1.2em;margin:10px 0 0}.list-clean li{margin:.32em 0}.check-list{list-style:none;padding:0;margin:0}.check-list li{position:relative;padding-left:24px;margin:.45em 0}.check-list li:before{content:"";position:absolute;left:0;top:.72em;width:10px;height:10px;border-radius:50%;background:var(--brand2)}.note-list{font-size:14px;color:var(--muted)}
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}table{width:100%;border-collapse:collapse;min-width:720px}th,td{padding:14px 15px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}th{background:#edf4f9;color:var(--dark);font-weight:850}tr:last-child td{border-bottom:0}.price{font-weight:850;white-space:nowrap;color:var(--dark)}.notice{border-left:5px solid var(--accent);background:#fff8ef;border-radius:12px;padding:16px 18px;color:#4b3421}.notice p{margin:.3em 0}.small-notice{font-size:13px;color:var(--muted);margin-top:10px}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:850;color:var(--dark)}input,select,textarea{font:inherit;border:1px solid #cfd8e3;border-radius:10px;padding:11px 12px;background:#fff;color:var(--ink)}textarea{min-height:130px;resize:vertical}.hint{font-size:12px;color:var(--muted)}.kv{display:grid;grid-template-columns:190px 1fr;border-top:1px solid var(--line)}.kv div{padding:12px 0;border-bottom:1px solid var(--line)}.kv div:nth-child(odd){font-weight:850;color:var(--dark)}.case-card{display:grid;grid-template-columns:180px 1fr;gap:18px}.case-tag{font-weight:850;color:var(--brand);font-size:13px}.case-card h3{margin-bottom:6px}.cred{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:center}.cred-img{background:#090a10;border-radius:18px;overflow:hidden;border:1px solid #1b1f2a;box-shadow:var(--shadow)}.cred-img img{display:block;width:100%}.mail-box{display:grid;gap:12px}.mail-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px}.mail-item strong{display:block}.mail-item a{font-weight:850}.site-footer{background:var(--dark);color:#dce5ec;padding:42px 0;margin-top:0}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:26px}.site-footer a{color:#fff}.footer-logo{width:170px;margin-bottom:12px}.footer-small{font-size:13px;color:#aebbc7}.breadcrumb{font-size:13px;color:var(--muted);padding:18px 0}.breadcrumb a{color:var(--muted)}.page-hero{background:linear-gradient(135deg,#eef6fb,#fff);border-bottom:1px solid var(--line);padding:42px 0}.page-hero h1{font-size:clamp(30px,4vw,46px)}.toc{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.toc a{display:inline-flex;border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 11px;font-weight:750;font-size:13px;color:var(--dark)}.toc a:hover{text-decoration:none;border-color:var(--brand)}.article-list .card{box-shadow:none}.article-list h3{font-size:18px}.tagline{font-weight:850;color:var(--brand);margin:0 0 10px}.mini{font-size:13px;color:var(--muted)}.status{display:inline-block;border-radius:999px;padding:4px 9px;background:#e8f6ec;color:#246b3f;font-weight:850;font-size:12px}.status.closed{background:#f5ece8;color:#9a3b1e}.status.draft{background:#f0f1f5;color:#565f6d}.scope-box{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:22px}.scope-box strong{display:block;color:var(--dark);margin-bottom:8px}
@media(max-width:900px){.hero-grid,.grid-2,.grid-3,.grid-4,.core-diagram,.footer-grid,.case-card,.cred{grid-template-columns:1fr}.header-inner{align-items:flex-start;flex-direction:column;padding:14px 0}.nav{justify-content:flex-start}.brand img{width:160px}.form-grid{grid-template-columns:1fr}.kv{grid-template-columns:1fr}.kv div:nth-child(odd){border-bottom:0;padding-bottom:0}.kv div:nth-child(even){padding-top:4px}.section{padding:46px 0}}
@media print{.site-header,.button-row,.site-footer,.toc,.form{display:none}body{background:#fff}.card,.table-wrap{box-shadow:none}.section{padding:24px 0}.container{width:100%}}

/* v5 official Autodesk credential logo layout */
.cred-img{background:#fff;border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);padding:26px}
.cred-img img{display:block;width:100%;height:auto}
.cert-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cert-panel{display:grid;grid-template-columns:1fr 1.15fr;gap:28px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.cert-panel.simple{grid-template-columns:1fr .9fr}
.cert-logos{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;align-items:stretch}
.cert-logos.small{grid-template-columns:repeat(2,minmax(0,1fr))}
.cert-logo{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;min-height:102px;display:flex;align-items:center;justify-content:center}
.cert-logo img{max-width:100%;max-height:78px;width:auto;height:auto;display:block}
.cert-logos-large .cert-logo{min-height:126px;padding:24px}
.cert-logos-large .cert-logo img{max-height:92px}
.footer-small{font-size:13px;color:#aebbc7}
@media(max-width:900px){.cert-panel{grid-template-columns:1fr}.cert-logos{grid-template-columns:1fr}.cert-logos.small{grid-template-columns:1fr}}


/* v6 schedule management */
.schedule-card .button-row{margin-top:18px}.note-list{padding-left:1.2em;margin:8px 0 0}.note-list li{margin:.25em 0}.admin-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;align-items:start}.admin-table table{min-width:760px}.small-btn{font:inherit;border:1px solid var(--brand);background:#fff;color:var(--brand);border-radius:999px;padding:5px 10px;font-weight:800;cursor:pointer}.small-btn:hover{background:var(--soft)}.admin-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.admin-actions .btn{cursor:pointer}.selected-row{background:#f3f8fc}.export-text{width:100%;min-height:220px;font-family:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;font-size:12px;line-height:1.5}.admin-warning{background:#fff8ef;border-left:5px solid var(--accent);border-radius:12px;padding:16px 18px}.admin-warning p{margin:.25em 0}.admin-status{font-weight:800;color:var(--brand);margin-top:10px}
@media(max-width:900px){.admin-layout{grid-template-columns:1fr}}


/* v9 material/product pages */
.table-wrap table td a{font-weight:800;white-space:nowrap}
.product-note{font-size:13px;color:var(--muted);margin-top:10px}


/* v10 3D4Makers product images */
.stack{display:grid;gap:16px;align-content:start}
.product-photo{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px;box-shadow:var(--shadow)}
.product-photo img{display:block;width:100%;height:auto;max-height:360px;object-fit:contain;border-radius:12px;background:#f8fafc}
.product-photo figcaption{font-size:12px;color:var(--muted);line-height:1.5;margin-top:8px}
.product-card{overflow:hidden}
.product-card>img{display:block;width:calc(100% + 16px);max-width:none;margin:-8px -8px 16px;border-radius:12px;background:#f8fafc;object-fit:contain;max-height:210px;border:1px solid var(--line)}
.material-gallery{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:6px}
.material-gallery.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.material-gallery .product-photo{padding:10px;box-shadow:none}
.material-gallery .product-photo img{max-height:210px}
@media(max-width:900px){.material-gallery,.material-gallery.two{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.material-gallery,.material-gallery.two{grid-template-columns:1fr}}


/* v11 detail content */
.card h3 + .mini{margin-top:-4px}
.table-wrap + h3{margin-top:28px}
.material-callout{background:#f8fbfd;border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.material-callout strong{color:var(--dark)}

/* v13 public-ready adjustments */
.btn.disabled{background:#eef1f4;color:#687583;border-color:#d8e0e7;cursor:not-allowed;pointer-events:none}
.footer-links{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px;font-size:13px;color:#aebbc7}.footer-links a{color:#dce5ec}

/* v14 education photo gallery */
.photo-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:22px}
.photo-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.photo-card img{display:block;width:100%;height:190px;object-fit:cover;background:#eef3f7}
.photo-card figcaption{font-size:13px;color:var(--muted);line-height:1.55;padding:12px 14px;margin:0}
.photo-note{font-size:13px;color:var(--muted);margin-top:12px}
@media(max-width:900px){.photo-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.photo-card img{height:200px}}
@media(max-width:560px){.photo-grid{grid-template-columns:1fr}.photo-card img{height:auto}}


/* v14 education photos */
.photo-panel{display:grid;grid-template-columns:1.08fr .92fr;gap:24px;align-items:center}
.photo-frame{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px;box-shadow:var(--shadow);overflow:hidden}
.photo-frame img{display:block;width:100%;height:auto;border-radius:12px;object-fit:cover;background:#f8fafc}
.photo-caption{font-size:12px;color:var(--muted);line-height:1.55;margin:8px 2px 0}
.education-gallery{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:22px}
.education-gallery .photo-frame{padding:8px;box-shadow:none}
.education-gallery .photo-frame img{aspect-ratio:4/3;object-fit:cover}
.privacy-note{font-size:13px;color:var(--muted);margin-top:10px}
@media(max-width:900px){.photo-panel{grid-template-columns:1fr}.education-gallery{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.education-gallery{grid-template-columns:1fr}}


/* v20 additions */
.company-table th{width:32%;white-space:nowrap;color:#1b2a3a;background:#f7f9fb}.company-table td{line-height:1.7}.hp-field{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}.captcha-box{border:1px solid #d7e1ea;border-radius:12px;padding:14px;background:#f7f9fb}.captcha-question{display:inline-block;font-weight:700;color:#17324d;margin-left:.4em}.captcha-answer{max-width:220px}.form .hint{font-size:.88rem;color:#687587;line-height:1.6}.quick-order-note{border-left:4px solid #306fb3;padding:12px 16px;background:#f5f9ff;border-radius:8px}.nav a.active[href="company.html"]{font-weight:700}


/* v20: simple anti-spam form controls */
.hp-field{position:absolute!important;left:-10000px!important;top:auto!important;width:1px!important;height:1px!important;overflow:hidden!important;opacity:0!important}
.captcha-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.captcha-question{display:inline-flex;align-items:center;justify-content:center;min-width:86px;padding:10px 12px;border-radius:10px;background:#edf4f9;border:1px solid var(--line);font-weight:850;color:var(--dark)}.captcha-row input{max-width:160px}.product-thumb{width:100%;border-radius:16px;border:1px solid var(--line);background:#fff;margin-bottom:18px}.company-kv{margin-top:6px}.company-kv div:nth-child(odd){color:var(--brand)}


/* v21 server-side forms and PayPal */
.form-success,.form-error{border-radius:14px;padding:16px 18px;margin:0 0 18px}.form-success{background:#f0fbf4;border:1px solid #b8e6c7;color:#173b22}.form-error{background:#fff5f5;border:1px solid #f0b8b8;color:#6b1b1b}.form-success ul,.form-error ul{margin:.5em 0 0 1.2em}.paypal-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}.paypal-form{display:grid;gap:12px;margin-top:12px}.paypal-form select{max-width:320px}.paypal-note{font-size:13px;color:var(--muted);line-height:1.6}.required{color:#b61d1d;font-weight:700;font-size:.88em}.form .field label.checkbox-label{display:flex;align-items:flex-start;gap:8px;font-weight:500}.form .field label.checkbox-label input{width:auto;margin-top:.25em}.legacy-url-note{font-size:13px;color:var(--muted);}