:root{--bg: #f2f4f7;--panel: #ffffff;--ink: #16202e;--ink-soft: #5a6572;--line: #dde3ea;--accent: #0f4c81;--accent-dark: #0b3a63;--accent-soft: #e8f0f8;--ok: #1a7f4b;--err: #b3362b;--radius: 10px;--shadow: 0 1px 3px rgba(22, 32, 46, .08), 0 4px 14px rgba(22, 32, 46, .06)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:Inter,Segoe UI,-apple-system,PingFang SC,Helvetica Neue,Arial,sans-serif;color:var(--ink);background:var(--bg);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}.app{min-height:100%;display:flex;flex-direction:column}.site-header{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;background:#101827;color:#fff}.brand{display:flex;align-items:center;gap:10px}.brand-mark{width:30px;height:30px;border-radius:8px;background:radial-gradient(circle at 35% 50%,#0f4c81 0 5px,transparent 5px),radial-gradient(circle at 35% 50%,transparent 0 8px,#4a9fd8 8px 12px,transparent 12px);border:1px solid #2b3a52}.brand strong{font-size:15px;letter-spacing:.06em;display:block;line-height:1.2}.brand-sub{font-size:12px;color:#93a3b8;display:block}.site-header nav a{color:#c7d3e0;text-decoration:none;font-size:13px;margin-left:16px}.site-header nav a:hover{color:#fff}.layout{flex:1;display:grid;grid-template-columns:400px 1fr;gap:14px;padding:14px 20px;max-width:1680px;width:100%;margin:0 auto}.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);display:flex;flex-direction:column;max-height:calc(100vh - 120px);position:sticky;top:14px}.steps{list-style:none;margin:0;padding:10px;display:grid;grid-template-columns:repeat(4,1fr);gap:6px;border-bottom:1px solid var(--line)}.step-chip{width:100%;border:1px solid var(--line);background:#f7f9fb;border-radius:8px;padding:6px 4px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:3px;font:inherit;color:var(--ink-soft)}.step-chip .step-num{width:20px;height:20px;border-radius:50%;background:#d7dee6;color:var(--ink);display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:700}.step-chip .step-label{font-size:10.5px;text-align:center;line-height:1.15}.step-chip.active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-dark)}.step-chip.active .step-num{background:var(--accent);color:#fff}.step-chip.done .step-num{background:var(--ok);color:#fff}.step-body{padding:14px;overflow-y:auto;flex:1}.step-nav{display:flex;justify-content:space-between;gap:8px;padding:10px 14px;border-top:1px solid var(--line)}.field{margin-bottom:16px}.field-label{display:block;font-weight:600;font-size:12.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-soft);margin-bottom:7px}.hint{font-size:11.5px;color:#8a94a1;margin:5px 0 0}.series-card{display:block;width:100%;text-align:left;font:inherit;border:1.5px solid var(--accent);border-radius:8px;background:var(--accent-soft);padding:10px 12px;cursor:default}.series-card strong{display:block;margin-bottom:3px}.series-card span{font-size:12px;color:var(--ink-soft)}.size-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.size-chip{border:1px solid var(--line);background:#fff;border-radius:8px;padding:7px 4px;cursor:pointer;font:inherit;text-align:center}.size-chip strong{display:block;font-size:13px}.size-chip small{color:var(--ink-soft);font-size:10.5px}.size-chip:hover{border-color:var(--accent)}.size-chip.active{border-color:var(--accent);background:var(--accent-soft);box-shadow:inset 0 0 0 1px var(--accent)}.seg-row{display:grid;grid-template-columns:1fr 1fr;gap:6px}.seg{border:1px solid var(--line);background:#fff;border-radius:8px;padding:8px;cursor:pointer;font:inherit}.seg.active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-dark);font-weight:600}.slider-row{margin-bottom:13px}.slider-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px}.slider-head label{font-weight:600;font-size:12.5px}.slider-head .hint{text-align:right;max-width:55%;margin:0}.slider-inputs{display:flex;align-items:center;gap:8px;margin-top:4px}.slider-inputs input[type=range]{flex:1;accent-color:var(--accent)}.slider-inputs .num{width:76px;padding:4px 6px;border:1px solid var(--line);border-radius:6px;font:inherit;text-align:right;font-variant-numeric:tabular-nums}.slider-inputs .unit{font-size:11px;color:var(--ink-soft);width:20px}.select{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff}.option-list{display:grid;grid-template-columns:1fr 1fr;gap:6px}.option{border:1px solid var(--line);background:#fff;border-radius:8px;padding:9px 10px;cursor:pointer;font:inherit;text-align:left}.option.active{border-color:var(--accent);background:var(--accent-soft);font-weight:600}.swatch-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:6px}.swatch{border:1px solid var(--line);background:#fff;border-radius:8px;padding:7px 6px;cursor:pointer;font:inherit;font-size:11.5px;display:flex;align-items:center;gap:6px}.swatch .dot{width:14px;height:14px;border-radius:50%;border:1px solid rgba(0,0,0,.15);flex:none}.swatch.active{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}.btn{border-radius:8px;padding:9px 16px;font:inherit;font-weight:600;cursor:pointer;border:1px solid transparent}.btn.primary{background:var(--accent);color:#fff}.btn.primary:hover{background:var(--accent-dark)}.btn.primary:disabled{opacity:.55;cursor:not-allowed}.btn.ghost{background:#fff;border-color:var(--line);color:var(--ink)}.btn.ghost:hover{border-color:var(--accent);color:var(--accent-dark)}.btn.ghost:disabled{opacity:.4;cursor:not-allowed}.btn.small{padding:6px 12px;font-size:12.5px}.stage{display:flex;flex-direction:column;gap:10px;min-height:540px}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:8px 12px;box-shadow:var(--shadow)}.toolbar-group{display:flex;align-items:center;gap:6px}.toolbar-label{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft);margin-right:2px}.chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:5px 12px;cursor:pointer;font:inherit;font-size:12px}.chip:hover{border-color:var(--accent)}.chip.active{background:var(--accent);border-color:var(--accent);color:#fff}.viewport{flex:1;min-height:420px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;position:relative;background:#eceff3;box-shadow:var(--shadow)}.dim-badge{background:#101827d9;color:#fff;font-size:11px;font-weight:600;font-variant-numeric:tabular-nums;padding:2px 8px;border-radius:999px;white-space:nowrap;pointer-events:none}.summary-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:10px 14px;box-shadow:var(--shadow)}.summary-main{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}.summary-main strong{font-size:16px;color:var(--accent-dark)}.summary-main span{font-size:12.5px;color:var(--ink-soft);font-variant-numeric:tabular-nums}.summary-actions{display:flex;gap:8px}.spec-card table{width:100%;border-collapse:collapse}.spec-card th,.spec-card td{text-align:left;padding:5px 8px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums}.spec-card th{color:var(--ink-soft);font-weight:500;width:55%}.spec-card td{font-weight:600}.spec-card .disclaimer{font-size:11px;color:#8a94a1;margin:10px 0 0}.spec-card.compact{max-height:180px;overflow-y:auto;margin:10px 0;border:1px solid var(--line);border-radius:8px;padding:8px}.action-row{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}.share-url{font-size:12px;margin-top:8px;word-break:break-all}.error-note{color:var(--err);font-size:12.5px;margin-top:8px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0d141f8c;display:flex;align-items:center;justify-content:center;padding:18px;z-index:100}.modal{background:#fff;border-radius:14px;padding:22px;width:560px;max-width:100%;max-height:92vh;overflow-y:auto;position:relative}.modal h3{margin:0 0 4px}.modal-close{position:absolute;top:10px;right:12px;border:none;background:none;font-size:24px;cursor:pointer;color:var(--ink-soft)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:12px 0}.form-grid label,.modal label.full{display:flex;flex-direction:column;gap:4px;font-size:12.5px;font-weight:600;color:var(--ink-soft)}.modal input,.modal textarea{border:1px solid var(--line);border-radius:8px;padding:8px 10px;font:inherit;font-weight:400;color:var(--ink);width:100%}.modal label.full{margin-bottom:10px}.rfq-success{text-align:center;padding:30px 10px}.rfq-success h3{color:var(--ok)}.rfq-success .btn{margin-top:14px}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);background:#101827;color:#fff;padding:10px 18px;border-radius:999px;font-size:13px;box-shadow:0 6px 24px #00000040;z-index:200}.seo-footer{background:#fff;border-top:1px solid var(--line);margin-top:18px}.seo-inner{max-width:1680px;margin:0 auto;padding:28px 20px 34px}.seo-inner h1{font-size:19px;margin:0 0 10px}.seo-inner p{max-width:900px;color:var(--ink-soft);font-size:13px;margin:6px 0}.seo-links{display:flex;gap:8px;align-items:center}.seo-links a{color:var(--accent);text-decoration:none;font-weight:600}.seo-links a:hover{text-decoration:underline}.copyright{font-size:11.5px!important;color:#9aa4b0!important;margin-top:14px!important}@media (max-width: 1020px){.layout{grid-template-columns:1fr}.panel{position:static;max-height:none;order:2}.stage{order:1;min-height:auto}.viewport{min-height:380px;height:52vh}.swatch-grid{grid-template-columns:1fr 1fr}}@media (max-width: 560px){.layout{padding:10px;gap:10px}.size-grid{grid-template-columns:repeat(4,1fr)}.form-grid,.option-list{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr)}.slider-head .hint{display:none}}