:root{--bg: #14171a;--bg-alt: #1b1f24;--card: #21262c;--border: #30363d;--text: #e8eaed;--text-dim: #9aa4af;--accent: #f5a623;--accent-dark: #d48f15}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}h1,h2,h3{line-height:1.2;margin:0 0 .5em}a{color:var(--accent)}.hero{background:radial-gradient(ellipse at 20% -10%,rgba(245,166,35,.12),transparent 55%),linear-gradient(180deg,#101317 0%,var(--bg) 100%);border-bottom:1px solid var(--border)}.nav{display:flex;justify-content:space-between;align-items:center;max-width:1080px;margin:0 auto;padding:20px 24px}.logo{font-weight:800;letter-spacing:.08em;font-size:1.1rem}.logo-accent{color:var(--accent)}.nav-cta{text-decoration:none;font-weight:600;border:1px solid var(--accent);padding:8px 18px;border-radius:6px}.hero-inner{max-width:1080px;margin:0 auto;padding:72px 24px 88px}.hero h1{font-size:clamp(2rem,5vw,3.2rem);max-width:17ch}.accent{color:var(--accent)}.lead{font-size:1.15rem;color:var(--text-dim);max-width:58ch}.hero-actions{display:flex;gap:14px;margin:28px 0;flex-wrap:wrap}.btn{display:inline-block;padding:13px 26px;border-radius:8px;font-size:1rem;font-weight:700;text-decoration:none;border:1px solid transparent;cursor:pointer}.btn-primary{background:var(--accent);color:#14171a}.btn-primary:hover{background:var(--accent-dark)}.btn-ghost{border-color:var(--border);color:var(--text);background:transparent}.btn-ghost:hover{border-color:var(--text-dim)}.hero-usp{list-style:none;padding:0;margin:0;display:flex;gap:24px;flex-wrap:wrap;color:var(--text-dim);font-size:.95rem}.hero-usp li:before{content:"✓ ";color:var(--accent);font-weight:700}.section{max-width:1080px;margin:0 auto;padding:64px 24px}.section-alt{max-width:none;background:var(--bg-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.section-alt>*{max-width:1032px;margin-left:auto;margin-right:auto}.section h2{font-size:1.8rem;margin-bottom:24px}.section-lead{color:var(--text-dim);max-width:70ch;margin-bottom:32px}.grid{display:grid;gap:18px}.grid-3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.grid-4{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:22px}.card h3{font-size:1.05rem}.card p{color:var(--text-dim);font-size:.95rem;margin:0}.step-n{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;background:var(--accent);color:#14171a;font-weight:800;border-radius:50%;margin-bottom:12px}.materials{border:1px solid var(--border);border-radius:10px;overflow:hidden}.material-row{display:grid;grid-template-columns:220px 1fr;gap:12px;padding:14px 20px;border-bottom:1px solid var(--border);background:var(--card)}.material-row:last-child{border-bottom:none}.material-name{font-weight:700}.material-use{color:var(--text-dim)}@media(max-width:560px){.material-row{grid-template-columns:1fr;gap:2px}}.order-form{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:28px;display:flex;flex-direction:column;gap:18px}.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px}.order-form label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:.95rem}.order-form input,.order-form textarea{background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:11px 14px;font:inherit;font-weight:400}.order-form input:focus,.order-form textarea:focus{outline:2px solid var(--accent);outline-offset:-1px}.order-form input[type=file]{padding:9px}.label-hint,.file-list{color:var(--text-dim);font-weight:400;font-size:.85rem}.hp{position:absolute;left:-9999px;height:0;width:0;border:0;padding:0}.btn-submit{align-self:flex-start}.btn-submit:disabled{opacity:.6;cursor:wait}.form-note{color:var(--text-dim);font-size:.85rem;margin:0}.form-error{color:#ff7b72;background:#ff7b7214;border:1px solid rgba(255,123,114,.4);border-radius:8px;padding:10px 14px;margin:0}.form-success{background:var(--card);border:1px solid var(--accent);border-radius:12px;padding:32px;text-align:center}.form-success p{color:var(--text-dim);max-width:50ch;margin:0 auto 20px}.calc{background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden}.calc-tabs{display:flex;border-bottom:1px solid var(--border)}.calc-tab{flex:1;padding:14px;background:var(--bg);color:var(--text-dim);border:none;border-right:1px solid var(--border);font:inherit;font-weight:700;cursor:pointer}.calc-tab:last-child{border-right:none}.calc-tab.active{background:var(--card);color:var(--accent)}.calc-body{padding:24px 28px 28px;display:flex;flex-direction:column;gap:18px}.calc-hint{color:var(--text-dim);margin:0;font-size:.95rem}.calc-body label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:.95rem}.calc-body input,.calc-body select{background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:11px 14px;font:inherit;font-weight:400}.calc-body input:focus,.calc-body select:focus{outline:2px solid var(--accent);outline-offset:-1px}.calc-result{border:1px solid var(--accent);border-radius:10px;padding:20px;background:#f5a6230f}.calc-price{display:block;font-size:1.6rem;font-weight:800;color:var(--accent);margin-bottom:6px}.calc-result p{color:var(--text-dim);font-size:.9rem;margin:0 0 14px}.calc-note{color:var(--text-dim);font-size:.9rem;margin:0}.estimate-chip{display:flex;justify-content:space-between;align-items:center;gap:12px;background:#f5a62314;border:1px solid var(--accent);border-radius:8px;padding:10px 14px;font-size:.9rem}.estimate-chip button{background:none;border:none;color:var(--text-dim);cursor:pointer;font-size:1rem}.footer{border-top:1px solid var(--border);padding:40px 24px}.footer-inner{max-width:1080px;margin:0 auto;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}.footer p{color:var(--text-dim);font-size:.9rem;margin:0;text-align:right}@media(max-width:560px){.footer-inner{flex-direction:column}.footer p{text-align:left}}