:root{--bg:#0b1020;--bg-soft:#10182d;--panel:#121c32;--panel-2:#0d1527;--line:rgba(255,255,255,0.09);--text:#f8fbff;--muted:#cad5e5;--muted-2:#95a3ba;--brand:#2f6df6;--brand-2:#6aa7ff;}
html[data-theme="light"]{--bg:#f7f9fc;--bg-soft:#edf3fb;--panel:#ffffff;--panel-2:#f5f8fc;--line:rgba(15,23,42,0.10);--text:#111827;--muted:#475569;--muted-2:#64748b;--brand:#2f6df6;--brand-2:#6aa7ff;}
*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:Arial,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{text-decoration:none;color:inherit}.wrap{width:100%;overflow:hidden}.container{width:min(1180px,calc(100% - 40px));margin:0 auto}
.header{position:sticky;top:0;z-index:1000;background:rgba(10,16,32,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}html[data-theme="light"] .header{background:rgba(247,249,252,.88)}.header-inner{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}.logo{font-size:28px;font-weight:900;letter-spacing:.04em}
.nav,.header-tools,.hero-actions,.footer-links,.tag-row,.meta-grid{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.nav a{color:var(--muted);font-weight:700;font-size:15px}.nav a:hover,.footer-links a:hover{color:var(--text)}
.theme-switch,.btn{min-height:44px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;padding:0 16px}.theme-switch{border:1px solid var(--line);background:var(--panel);color:var(--text);font-weight:700;cursor:pointer}.btn{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:800;border:1px solid transparent}.btn.btn-line{background:transparent;border-color:var(--line);color:var(--text)}
.hero{padding:82px 0 52px;background:radial-gradient(circle at left top, rgba(47,109,246,.18), transparent 32%),radial-gradient(circle at right top, rgba(106,167,255,.16), transparent 28%),linear-gradient(180deg,var(--bg-soft),var(--bg))}.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
.eyebrow,.section-mini{color:var(--brand-2);font-size:12px;font-weight:900;letter-spacing:.18em;margin:0 0 12px}.hero h1,.detail-title{margin:0 0 18px;font-size:clamp(34px,5vw,58px);line-height:1.12}.hero-desc,.detail-lead{margin:0 0 24px;max-width:760px;color:var(--muted);font-size:18px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}.stat-box,.meta-box,.compare-box{padding:18px;border-radius:18px;background:rgba(255,255,255,.04);border:1px solid var(--line)}html[data-theme="light"] .stat-box,html[data-theme="light"] .meta-box,html[data-theme="light"] .compare-box{background:rgba(255,255,255,.9)}.stat-box strong,.meta-box strong{display:block;font-size:18px;margin-bottom:4px}.stat-box span,.meta-box span,.compare-box p{color:var(--muted)}
.hero-panel,.detail-box,.image-wrap{background:linear-gradient(180deg,var(--panel),var(--panel-2));border:1px solid var(--line);border-radius:26px;padding:28px;box-shadow:0 20px 50px rgba(0,0,0,.18)}
.hero-panel h2{margin:0 0 18px;font-size:24px}.panel-list{list-style:none;padding:0;margin:0}.panel-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}.panel-list li:last-child{border-bottom:none}.panel-list li span{width:42px;height:42px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:rgba(47,109,246,.16);font-weight:900;color:var(--brand-2);flex:0 0 42px}.panel-list strong{display:block;margin-bottom:2px}.panel-list p,.detail-box p{margin:0 0 18px;color:var(--muted)}
.detail-box h3{margin:0 0 10px;font-size:24px}.detail-list{margin:0 0 18px;padding-left:20px;color:var(--muted)}
.section{padding:74px 0}.section-soft{background:var(--bg-soft)}.section-head{text-align:center;margin-bottom:28px}.section-head h2{margin:0;font-size:clamp(28px,4vw,42px);line-height:1.2}.section-head p{margin:10px 0 0;color:var(--muted)}
.project-grid,.material-grid,.feature-grid,.compare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.project-card,.material-card,.feature-box,.compare-box{background:var(--panel);border:1px solid var(--line);border-radius:24px;overflow:hidden}.project-card,.material-card{transition:transform .18s ease,border-color .18s ease}.project-card:hover,.material-card:hover{transform:translateY(-4px);border-color:rgba(106,167,255,.35)}
.project-thumb{min-height:220px;padding:18px;display:flex;flex-direction:column;justify-content:flex-end;position:relative}
.thumb-label{position:absolute;top:18px;left:18px;display:inline-flex;min-height:30px;padding:0 10px;align-items:center;border-radius:999px;font-size:12px;font-weight:900;background:rgba(255,255,255,.18);color:#fff;border:1px solid rgba(255,255,255,.22)}
.project-thumb h3{margin:0;color:#fff;font-size:28px;line-height:1.2;max-width:80%;text-shadow:0 4px 14px rgba(0,0,0,.28)}
.thumb-a{background:linear-gradient(135deg, rgba(47,109,246,.88), rgba(106,167,255,.55)),radial-gradient(circle at top left, rgba(255,255,255,.18), transparent 35%),#1847aa}.thumb-b{background:linear-gradient(135deg, rgba(17,24,39,.88), rgba(71,85,105,.64)),radial-gradient(circle at top left, rgba(255,255,255,.18), transparent 35%),#334155}.thumb-c{background:linear-gradient(135deg, rgba(220,38,38,.88), rgba(249,115,22,.62)),radial-gradient(circle at top left, rgba(255,255,255,.18), transparent 35%),#7c2d12}.thumb-d{background:linear-gradient(135deg, rgba(14,116,144,.88), rgba(34,211,238,.58)),radial-gradient(circle at top left, rgba(255,255,255,.18), transparent 35%),#164e63}.thumb-e{background:linear-gradient(135deg, rgba(147,51,234,.88), rgba(216,180,254,.48)),radial-gradient(circle at top left, rgba(255,255,255,.18), transparent 35%),#6b21a8}.thumb-f{background:linear-gradient(135deg, rgba(22,163,74,.88), rgba(74,222,128,.55)),radial-gradient(circle at top left, rgba(255,255,255,.18), transparent 35%),#166534}
.project-body,.material-card,.feature-box,.compare-box{padding:24px}.project-body p,.material-card p,.feature-box p{margin:0;color:var(--muted)}
.tag{display:inline-flex;align-items:center;justify-content:center;min-height:30px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:800;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--muted)}
.card-link{display:inline-block;margin-top:18px;font-weight:800}
.material-icon{width:58px;height:58px;border-radius:18px;display:flex;align-items:center;justify-content:center;font-size:28px;background:linear-gradient(135deg,var(--brand),var(--brand-2));margin-bottom:16px}.material-card h3,.feature-box h3,.compare-box h4{margin:0 0 10px;font-size:24px;line-height:1.25}
.cta-box{background:linear-gradient(135deg,var(--panel),var(--panel-2));border:1px solid var(--line);border-radius:30px;padding:34px;text-align:center}.cta-box h2{margin:0 0 12px;font-size:clamp(28px,4vw,40px)}.cta-box p{max-width:760px;margin:0 auto 22px;color:var(--muted)}
.footer{padding:30px 0;border-top:1px solid var(--line);background:var(--bg)}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer p{margin:6px 0 0;color:var(--muted-2)}.detail-wrap{max-width:980px}
.image-wrap{padding:18px}.project-image{width:100%;height:auto;border-radius:18px;display:block;border:1px solid var(--line);background:#0f172a}.image-caption{margin-top:10px;color:var(--muted);font-size:14px}
@media (max-width:1024px){.hero-grid{grid-template-columns:1fr}.project-grid,.material-grid,.feature-grid,.hero-stats,.compare-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:768px){.container{width:min(100% - 28px,1180px)}.header-inner{padding:14px 0}.hero{padding:56px 0 36px}.hero-desc,.detail-lead{font-size:16px}.section{padding:56px 0}.project-grid,.material-grid,.feature-grid,.hero-stats,.compare-grid{grid-template-columns:1fr}.project-thumb h3{font-size:24px;max-width:100%}}