:root{--font-sans:"Inter", "Pretendard", system-ui, -apple-system, sans-serif;--bg:#f0f0f0;--surface:#ffffff80;--surface-hover:#fffc;--border:#fff6;--text-main:#111;--text-dim:#666;--accent:#111;--accent-glow:#0000000d;--shadow-sm:0 4px 16px #0000000a;--shadow-md:0 8px 24px #0000000f;--shadow-lg:0 12px 32px #00000014;--border-radius-lg:20px;--border-radius-md:16px}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg);color:var(--text-main);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;background-image:radial-gradient(at 0 0,#ffffffe6 0,#0000 50%),radial-gradient(at 100% 100%,#dcdcdc99 0,#0000 50%);background-attachment:fixed;overflow-x:hidden}.card-surface{background:var(--surface);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:var(--border-radius-md);box-shadow:var(--shadow-sm);transition:all .3s cubic-bezier(.25,1,.5,1)}.card-hover:hover{background:var(--surface-hover);box-shadow:var(--shadow-md);border-color:#fffc;transform:translateY(-3px)}nav{-webkit-backdrop-filter:blur(4px);z-index:1000;border-bottom:1px solid var(--border);background-color:#fffffff2;width:100%;position:fixed;top:0}.nav-container{justify-content:space-between;align-items:center;max-width:1140px;margin:0 auto;padding:16px 24px;display:flex}.nav-links{gap:32px;list-style:none;display:flex}.nav-links a{color:var(--text-dim);align-items:center;font-size:15px;font-weight:500;text-decoration:none;transition:color .2s;display:flex}.nav-links a:hover{color:var(--text-main)}.nav-icon{margin-right:6px}.logo{letter-spacing:-.5px;color:var(--text-main);font-size:22px;font-weight:800;text-decoration:none}.auth-buttons{gap:16px;display:flex}.btn-ghost{color:var(--text-dim);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:8px 12px;font-size:14px;font-weight:600}.btn-ghost:hover{background:var(--surface-hover);color:var(--text-main)}.btn-primary{background:var(--text-main);color:#fff;cursor:pointer;border:none;border-radius:6px;padding:8px 20px;font-size:14px;font-weight:600;transition:background-color .2s}.btn-primary:hover{background:#343a40}.container{max-width:1140px;margin:100px auto 60px;padding:0 24px}footer{color:#64748b;background-color:#111;margin-top:100px;padding:80px 0;font-size:14px}.footer-container{max-width:1140px;margin:0 auto;padding:0 24px}.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;display:grid}.footer-title{color:#fff;margin-bottom:24px;font-size:16px;font-weight:600}.footer-text{margin-bottom:20px;line-height:1.6}.footer-address{color:#475569;font-size:13px;font-style:normal;line-height:1.6}.footer-links{list-style:none}.footer-links li{margin-bottom:12px}.footer-links a{color:#64748b;text-decoration:none;transition:color .2s}.footer-links a:hover{color:#fff}.footer-bottom{border-top:1px solid #1e293b;justify-content:space-between;align-items:center;margin-top:40px;padding-top:32px;display:flex}.section-title{text-align:center;letter-spacing:-1px;margin-bottom:40px;font-size:32px;font-weight:800}.grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;display:grid}.card{cursor:pointer;color:inherit;flex-direction:column;text-decoration:none;display:flex}.card-img-wrapper{border-radius:var(--border-radius-md);aspect-ratio:4/5;border:1px solid var(--border);background-color:var(--surface);box-shadow:var(--shadow-sm);position:relative;overflow:hidden}.card-img{object-fit:cover;object-position:top;width:100%;height:100%;transition:object-position 8s cubic-bezier(.25,1,.5,1),transform .5s}.card:hover .card-img{object-position:50% 50%;transform:scale(1.02)}.card-overlay{-webkit-backdrop-filter:blur(2px);opacity:0;z-index:10;background:#0006;justify-content:center;align-items:center;width:100%;height:100%;transition:opacity .3s;display:flex;position:absolute;top:0;left:0}.card:hover .card-overlay{opacity:1}.btn-download-overlay{color:#111;pointer-events:none;background:#fff;border:none;border-radius:8px;align-items:center;gap:8px;padding:14px 28px;font-size:16px;font-weight:800;transition:transform .3s cubic-bezier(.25,1,.5,1),background .2s;display:flex;transform:translateY(12px);box-shadow:0 4px 16px #00000026}.card:hover .btn-download-overlay{transform:translateY(0)}.card-info{margin-top:16px;padding:0 4px}.card-title{color:var(--text-main);-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;margin-bottom:4px;font-size:16px;font-weight:700;line-height:1.4;display:-webkit-box;overflow:hidden}.card-price{color:var(--accent);font-size:15px;font-weight:600}.detail-layout{align-items:flex-start;gap:40px;display:flex}.detail-info{flex:1;max-width:480px;position:sticky;top:100px}.detail-media{flex:1.2}.detail-img-full{border-radius:var(--border-radius-md);border:1px solid var(--border);width:100%;box-shadow:var(--shadow-md);display:block}.badge{color:#334155;background:#f1f5f9;border:1px solid #e2e8f0;border-radius:6px;margin-bottom:16px;padding:4px 10px;font-size:12px;font-weight:700;display:inline-block}h1{color:#0f172a;letter-spacing:-.02em;margin-bottom:12px;font-size:28px;font-weight:800;line-height:1.3}p.description{color:#475569;letter-spacing:-.01em;margin-bottom:32px;font-size:15px;line-height:1.6}.options-group{flex-direction:column;gap:8px;margin-bottom:24px;display:flex}.option-card{cursor:pointer;background:#fff6;border:1px solid #00000014;border-radius:12px;justify-content:space-between;align-items:center;padding:16px 20px;transition:all .2s;display:flex}.option-card:hover{background:#ffffffb3;border-color:#00000026}.option-card.selected{background:#fff;border-color:#111;box-shadow:0 4px 12px #0000000d,0 0 0 1px #111}.option-radio{accent-color:#111;cursor:pointer;width:20px;height:20px;margin:0}.option-guide{-webkit-backdrop-filter:blur(12px);border:1px solid var(--border);color:var(--text-main);box-shadow:var(--shadow-sm);transform-origin:top;background:#fff6;border-radius:12px;margin-top:-4px;margin-bottom:8px;padding:16px 20px 20px 48px;font-size:14.5px;line-height:1.6;animation:.3s forwards slideDown}@keyframes slideDown{0%{opacity:0;transform:scaleY(.9)}to{opacity:1;transform:scaleY(1)}}.guide-list{flex-direction:column;gap:8px;margin:0;list-style-type:none;display:flex}.guide-list li{color:#475569;letter-spacing:-.01em;padding-left:14px;font-size:13px;line-height:1.5;position:relative}.guide-list li:before{content:"•";color:#94a3b8;font-weight:700;position:absolute;top:0;left:0}.option-label{flex-direction:column;gap:4px;display:flex}.option-name{color:#1e293b;letter-spacing:-.02em;font-size:15px;font-weight:700}.option-desc{color:#64748b;margin-top:2px;font-size:13px;font-weight:400}.option-price{color:#0f172a;font-variant-numeric:tabular-nums;font-size:16px;font-weight:700}.selected .option-price{color:#111}.buy-now{-webkit-backdrop-filter:blur(12px);color:#fff;border-radius:var(--border-radius-md);cursor:pointer;background:#111111d9;border:1px solid #ffffff1a;justify-content:center;align-items:center;width:100%;padding:18px;font-size:18px;font-weight:800;transition:all .3s;display:flex;box-shadow:0 8px 24px #00000026}.buy-now:hover{background:#111;transform:translateY(-2px);box-shadow:0 12px 32px #00000040}.buy-now-secondary{-webkit-backdrop-filter:blur(12px);width:100%;color:var(--text-main);border:1px solid var(--border);border-radius:var(--border-radius-md);cursor:pointer;box-shadow:var(--shadow-sm);background:#fff9;justify-content:center;align-items:center;padding:18px;font-size:18px;font-weight:800;text-decoration:none;transition:all .3s;display:flex}.buy-now-secondary:hover{box-shadow:var(--shadow-md);background:#ffffffe6;transform:translateY(-2px)}@media (width<=900px){.detail-layout{flex-direction:column}.detail-info{max-width:100%;position:static}.detail-media{order:-1;margin-bottom:24px}}@media (width<=768px){.nav-container{padding:16px 20px}.nav-links{display:none}.grid{grid-template-columns:repeat(2,1fr);gap:16px}.container{margin:80px auto 40px;padding:0 20px}.section-title{margin-bottom:24px;font-size:24px}.card-title{font-size:14px}.footer-grid{grid-template-columns:1fr;gap:32px}.footer-bottom{text-align:center;flex-direction:column;gap:16px}}@media (width<=480px){.grid{grid-template-columns:1fr}.card-img-wrapper{aspect-ratio:16/9;object-position:top}.container{padding:0 16px}.nav-container{padding:16px}.footer-container{padding:0 16px}}