* { box-sizing: border-box; margin: 0; padding: 0; }
  body { font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', sans-serif; background: #fff8f0; color: #1e293b; line-height: 1.75; }
  .container { max-width: 880px; margin: 0 auto; padding: 16px; }
  .top-bar { background: linear-gradient(135deg, #ff6b35, #f7931e); color: #fff; padding: 14px 20px; border-radius: 16px; margin-bottom: 20px; text-align: center; }
  .top-bar h1 { font-size: 1.4rem; font-weight: 800; margin-bottom: 4px; }
  .top-bar p { font-size: 0.95rem; opacity: 0.95; }
  .price-hero { background: linear-gradient(135deg, #fff, #fff5eb); border: 2px solid #f59e0b; border-radius: 20px; padding: 28px; margin-bottom: 20px; text-align: center; }
  .price-tag { font-size: 2.8rem; font-weight: 900; color: #dc2626; line-height: 1.1; }
  .price-tag .currency { font-size: 1.5rem; }
  .price-tag .discount { font-size: 1rem; color: #059669; margin-left: 8px; }
  .price-original { color: #94a3b8; text-decoration: line-through; font-size: 1rem; margin-top: 4px; }
  .price-save { display: inline-block; background: #fee2e2; color: #dc2626; padding: 4px 12px; border-radius: 20px; font-size: 0.9rem; font-weight: 700; margin: 8px 0; }
  .product-name { font-size: 1.3rem; font-weight: 800; color: #0f172a; margin: 12px 0 6px; }
  .product-badges { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin: 8px 0; }
  .badge { padding: 3px 10px; border-radius: 12px; font-size: 0.8rem; font-weight: 600; }
  .badge-cat { background: #dbeafe; color: #1e40af; }
  .badge-rate { background: #fef3c7; color: #92400e; }
  .badge-sale { background: #dcfce7; color: #166534; }
  .cta-main { display: block; background: linear-gradient(135deg, #dc2626, #ea580c); color: #fff; text-align: center; padding: 16px 24px; border-radius: 14px; font-size: 1.1rem; font-weight: 800; text-decoration: none; margin: 16px 0; box-shadow: 0 4px 16px rgba(220,38,38,.3); transition: transform 0.2s; }
  .cta-main:hover { transform: translateY(-2px); }
  .cta-sub { display: block; background: linear-gradient(135deg, #f59e0b, #d97706); color: #fff; text-align: center; padding: 12px 20px; border-radius: 12px; font-size: 0.95rem; font-weight: 700; text-decoration: none; margin: 8px 0; }
  .tip-box { background: #f0fdf4; border: 1px solid #bbf7d0; border-radius: 12px; padding: 12px 16px; margin: 12px 0; font-size: 0.85rem; color: #166534; line-height: 1.7; }
  .story-box { background: #fff; border-radius: 16px; padding: 24px; margin-bottom: 20px; box-shadow: 0 2px 8px rgba(0,0,0,.06); }
  .story-box h2 { font-size: 1.2rem; font-weight: 800; color: #0f172a; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
  .story-box p { line-height: 1.9; color: #334155; margin: 8px 0; font-size: 1rem; }
  .highlight { background: linear-gradient(180deg, transparent 60%, #fef3c7 60%); padding: 0 2px; font-weight: 600; color: #92400e; }
  .verdict-box { background: linear-gradient(135deg, #fef3c7, #fff7ed); border-radius: 16px; padding: 20px; margin: 20px 0; border: 2px solid #fbbf24; }
  .verdict-box h3 { color: #92400e; margin-bottom: 10px; font-size: 1.1rem; }
  .verdict-box ul { padding-left: 20px; }
  .verdict-box li { line-height: 1.9; color: #78350f; margin: 6px 0; }
  .cta-bottom { background: linear-gradient(135deg, #dc2626, #f59e0b); color: #fff; border-radius: 16px; padding: 24px; margin: 20px 0; text-align: center; }
  .cta-bottom h3 { font-size: 1.2rem; margin-bottom: 8px; }
  .cta-bottom p { opacity: 0.95; margin-bottom: 14px; }
  .cta-bottom-btn { display: inline-block; background: #fff; color: #dc2626; padding: 14px 32px; border-radius: 12px; font-weight: 800; font-size: 1.05rem; text-decoration: none; margin: 6px; }
  .disclaimer { background: #f1f5f9; border-radius: 10px; padding: 12px 16px; margin: 16px 0; font-size: 0.8rem; color: #64748b; line-height: 1.7; }
  .back-link { color: #ea580c; font-weight: 600; text-decoration: none; font-size: 0.9rem; }
  .back-link:hover { text-decoration: underline; }
/* v4d-interp-css 商品解读交互组件 */
.v4d-interp{display:flex;flex-direction:column;gap:16px;margin:20px 0}
.v4d-nav{display:flex;gap:8px;flex-wrap:wrap;padding:6px 2px;margin:2px 0 6px}
.v4d-nav a{background:#fff;border:1px solid #fcd9b6;color:#ea580c;font-size:.82rem;font-weight:700;padding:5px 12px;border-radius:999px;text-decoration:none;transition:all .15s}
.v4d-nav a:hover{background:#ffedd5;border-color:#f59e0b}
.v4d-lead{font-size:1.02rem;font-weight:800;color:#b45309;background:linear-gradient(135deg,#fef3c7,#fff7ed);border:1px solid #fde68a;border-radius:12px;padding:12px 16px;line-height:1.7}
.v4d-trust{display:flex;gap:8px;flex-wrap:wrap}
.v4d-trust span{background:#ecfdf5;color:#065f46;font-size:.8rem;font-weight:600;padding:4px 10px;border-radius:999px;border:1px solid #a7f3d0}
.v4d-card{background:#fff;border:1px solid #f1e4d6;border-radius:16px;padding:18px 20px;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.v4d-card h3{margin:0 0 10px;font-size:1.05rem;font-weight:800;color:#0f172a;display:flex;align-items:center;gap:8px}
.v4d-summary{display:flex;gap:16px;align-items:stretch;flex-wrap:wrap;background:linear-gradient(135deg,#fff,#fff5eb);border:2px solid #fbbf24}
.v4d-score-ring{flex:0 0 auto;display:flex;flex-direction:column;align-items:center;justify-content:center;width:98px;min-height:116px;background:#fff;border-radius:14px;border:2px solid #fde68a;padding:10px}
.v4d-score-ring .num{font-size:2.2rem;font-weight:900;color:#dc2626;line-height:1}
.v4d-score-ring .of{font-size:.72rem;color:#94a3b8;margin-top:2px}
.v4d-score-ring .grade{display:inline-block;margin-top:6px;background:linear-gradient(135deg,#dc2626,#ea580c);color:#fff;font-weight:800;font-size:.78rem;padding:2px 12px;border-radius:999px;white-space:nowrap}
.v4d-summary .body{flex:1;min-width:220px}
.v4d-summary .body p{line-height:1.8;color:#334155;margin:6px 0;font-size:.95rem}
.v4d-summary .body p.t{font-weight:700;color:#0f172a;margin:8px 0 4px;font-size:.9rem}
.v4d-chips{display:flex;flex-wrap:wrap;gap:6px;margin:2px 0}
.v4d-chip{font-size:.8rem;font-weight:600;padding:3px 10px;border-radius:999px;background:#fef3c7;color:#92400e;border:1px solid #fde68a}
.v4d-chip.good{background:#dcfce7;color:#166534;border-color:#bbf7d0}
.v4d-chip.warn{background:#fee2e2;color:#991b1b;border-color:#fecaca}
.v4d-table{width:100%;border-collapse:collapse;font-size:.92rem}
.v4d-table th,.v4d-table td{border:1px solid #f1e4d6;padding:8px 10px;text-align:left;line-height:1.6}
.v4d-table th{background:#fff7ed;color:#92400e;font-weight:700;white-space:nowrap;width:34%}
.v4d-table td{color:#334155}
.v4d-points{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px;margin:10px 0}
.v4d-point{background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;padding:8px 10px;font-size:.84rem;font-weight:600;color:#1e293b;display:flex;align-items:center;gap:6px;line-height:1.5}
.v4d-point b{flex:0 0 auto;width:20px;height:20px;border-radius:50%;background:linear-gradient(135deg,#f59e0b,#f97316);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:.72rem}
.v4d-desc{background:#fff7ed;border-left:4px solid #f59e0b;border-radius:8px;padding:10px 14px;margin:10px 0 0;color:#92400e;font-size:.9rem;line-height:1.8}
.v4d-compare-table{width:100%;border-collapse:collapse;font-size:.9rem}
.v4d-compare-table th,.v4d-compare-table td{border:1px solid #f1e4d6;padding:8px 10px;text-align:left;line-height:1.6}
.v4d-compare-table thead th{background:#ff6b35;color:#fff;font-weight:700}
.v4d-compare-table td.hl,.v4d-compare-table th.hl{background:#fff3e8;border:2px solid #fb923c;font-weight:700;color:#c2410c}
.v4d-compare-note{margin:10px 0 0;background:#fef3c7;border:1px solid #fde68a;border-radius:10px;padding:10px 14px;font-size:.88rem;color:#92400e;line-height:1.7}
.v4d-proscons{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.v4d-col{border-radius:14px;padding:14px 16px}
.v4d-pros{background:#f0fdf4;border:1px solid #bbf7d0}
.v4d-cons{background:#fff7ed;border:1px solid #fed7aa}
.v4d-col h4{margin:0 0 8px;font-size:.95rem;font-weight:800}
.v4d-pros h4{color:#166534}
.v4d-cons h4{color:#92400e}
.v4d-col ul{margin:0;padding-left:18px}
.v4d-col li{line-height:1.8;color:#334155;font-size:.9rem;margin:4px 0}
.v4d-fit{margin-top:10px}
.v4d-fit h4{font-size:.9rem;font-weight:800;color:#0f172a;margin:0 0 6px}
.v4d-value-chips{display:flex;gap:8px;flex-wrap:wrap;margin:4px 0}
.v4d-value-chip{background:#eff6ff;border:1px solid #bfdbfe;color:#1d4ed8;font-weight:700;font-size:.85rem;padding:6px 12px;border-radius:10px}
.v4d-roi{margin-top:10px;background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;padding:12px 14px;font-size:.9rem;color:#334155;line-height:1.8}
.v4d-score-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:6px}
.v4d-score-head .big{font-size:2.4rem;font-weight:900;color:#dc2626;line-height:1}
.v4d-score-head .badge{font-size:.85rem;font-weight:800;color:#fff;background:linear-gradient(135deg,#dc2626,#ea580c);padding:4px 14px;border-radius:999px}
.v4d-score-head .note{font-size:.82rem;color:#94a3b8}
.v4d-score .dim{margin:9px 0}
.v4d-score .dim .lab{display:flex;justify-content:space-between;font-size:.85rem;font-weight:600;color:#334155;margin-bottom:4px}
.v4d-score .bar{height:10px;background:#f1f5f9;border-radius:999px;overflow:hidden}
.v4d-score .bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#f59e0b,#ea580c)}
.v4d-verdict{background:linear-gradient(135deg,#fef3c7,#fff7ed);border:2px solid #fbbf24;border-radius:16px;padding:18px 20px}
.v4d-verdict .stars{font-size:1.15rem;margin-bottom:6px;font-weight:800;color:#92400e}
.v4d-verdict .advice{color:#78350f;line-height:1.8;font-size:.95rem;margin:6px 0}
.v4d-cta{display:inline-block;margin-top:10px;background:linear-gradient(135deg,#dc2626,#ea580c);color:#fff;font-weight:800;font-size:.98rem;padding:11px 22px;border-radius:12px;text-decoration:none;box-shadow:0 4px 14px rgba(220,38,38,.25);transition:transform .15s}
.v4d-cta:hover{transform:translateY(-2px)}
.v4d-faq details{border:1px solid #f1e4d6;border-radius:12px;margin:8px 0;overflow:hidden;background:#fff}
.v4d-faq summary{cursor:pointer;list-style:none;padding:12px 14px;font-weight:700;font-size:.92rem;color:#0f172a;display:flex;align-items:center;gap:8px;background:#fff8f0}
.v4d-faq summary::-webkit-details-marker{display:none}
.v4d-faq summary::before{content:"▸";color:#ea580c;transition:transform .15s}
.v4d-faq details[open] summary::before{transform:rotate(90deg)}
.v4d-faq details[open] summary{background:#fff7ed}
.v4d-faq .a{padding:0 14px 12px;font-size:.9rem;color:#475569;line-height:1.8}
.v4d-fresh{background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;padding:12px 16px;font-size:.8rem;color:#64748b;line-height:1.8}
.v4d-disc{font-size:.78rem;color:#94a3b8;text-align:center;padding:2px 0}
/* v4d-fb-css 用户真实感受交互组件 */
.v4d-feedback{background:linear-gradient(135deg,#fff,#fff7ed);border:2px solid #fed7aa;border-radius:16px;padding:20px;margin:20px 0}
.v4d-fb-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.v4d-fb-head h3{margin:0;font-size:1.1rem;font-weight:800;color:#0f172a;display:flex;align-items:center;gap:8px}
.v4d-fb-hint{font-size:.76rem;color:#94a3b8}
.v4d-fb-summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px;margin:0 0 14px}
.v4d-fb-score,.v4d-fb-stat{background:#fff;border:1px solid #fde68a;border-radius:12px;padding:12px;text-align:center}
.v4d-fb-score .n{display:block;font-size:1.7rem;font-weight:900;color:#dc2626;line-height:1.1}
.v4d-fb-score .s{display:block;font-size:.9rem;color:#f59e0b;letter-spacing:1px;margin:2px 0}
.v4d-fb-stat .n{display:block;font-size:1.25rem;font-weight:800;color:#ea580c;line-height:1.1}
.v4d-fb-score .t,.v4d-fb-stat .t{display:block;font-size:.74rem;color:#94a3b8;margin-top:4px}
.v4d-fb-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}
.v4d-fb-card{background:#fff;border:1px solid #f1e4d6;border-radius:12px;padding:12px 14px;transition:transform .15s,box-shadow .15s}
.v4d-fb-card:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(249,115,22,.12)}
.v4d-fb-stars{color:#f59e0b;font-size:.85rem;letter-spacing:1px;margin-bottom:6px}
.v4d-fb-quote{margin:0 0 8px;font-size:.9rem;line-height:1.65;color:#334155;font-weight:600}
.v4d-fb-meta{display:flex;align-items:center;justify-content:space-between;gap:6px;flex-wrap:wrap}
.v4d-fb-tag{font-size:.72rem;font-weight:700;color:#166534;background:#dcfce7;border:1px solid #bbf7d0;padding:2px 8px;border-radius:999px}
.v4d-fb-shop{font-size:.7rem;color:#94a3b8;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:60%}
.v4d-fb-empty{background:#fff;border:1px dashed #fcd34d;border-radius:12px;padding:18px;text-align:center;color:#92400e;font-size:.88rem;grid-column:1/-1}
/* v4d-p-css AI个性化按人群解读交互组件（数据全部来自真实商品字段, 无伪造/无随机） */
.v4d-persona{background:linear-gradient(135deg,#eef2ff,#f5f3ff);border:2px solid #c7d2fe;border-radius:16px;padding:18px 20px;box-shadow:0 2px 10px rgba(99,102,241,.08)}
.v4d-p-head{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px}
.v4d-p-head h3{margin:0;font-size:1.08rem;font-weight:800;color:#312e81;display:flex;align-items:center;gap:8px}
.v4d-p-sub{margin:4px 0 0;font-size:.78rem;color:#6d6a9e;line-height:1.6}
.v4d-p-chips{display:flex;gap:8px;flex-wrap:wrap;margin:4px 0 12px}
.v4d-p-chip{cursor:pointer;border:1px solid #c7d2fe;background:#fff;color:#4338ca;font-size:.85rem;font-weight:700;padding:7px 13px;border-radius:999px;transition:all .15s;font-family:inherit}
.v4d-p-chip:hover{border-color:#6366f1;background:#eef2ff}
.v4d-p-chip.active{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border-color:#6366f1;box-shadow:0 4px 12px rgba(99,102,241,.35)}
.v4d-p-chip i{font-style:normal;font-size:.68rem;opacity:.85;margin-left:3px}
.v4d-p-panel{background:#fff;border:1px solid #e0e7ff;border-radius:14px;padding:16px;transition:opacity .2s}
.v4d-p-fit{display:inline-block;font-size:.78rem;font-weight:800;padding:3px 12px;border-radius:999px;margin-bottom:10px}
.v4d-p-fit.high{background:#dcfce7;color:#166534;border:1px solid #bbf7d0}
.v4d-p-fit.mid{background:#fef3c7;color:#92400e;border:1px solid #fde68a}
.v4d-p-fit.low{background:#fee2e2;color:#991b1b;border:1px solid #fecaca}
.v4d-p-advice{color:#334155;font-size:.95rem;line-height:1.85;margin:0 0 12px}
.v4d-p-advice b{color:#312e81}
.v4d-p-facts{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.v4d-p-facts span{background:#eef2ff;color:#4338ca;font-size:.78rem;font-weight:700;padding:4px 10px;border-radius:999px;border:1px solid #c7d2fe}
.v4d-p-cta{display:inline-block;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;font-weight:800;font-size:.92rem;padding:10px 20px;border-radius:12px;text-decoration:none;box-shadow:0 4px 12px rgba(99,102,241,.25);transition:transform .15s}
.v4d-p-cta:hover{transform:translateY(-2px)}
.v4d-p-note{margin:10px 0 0;font-size:.72rem;color:#8b88b8;line-height:1.6}
/* v4d-ai-css 多智能体会诊套件（AI播报+会诊台+智能问答间），断档领先差异化交互 */
.v4d-ai{display:flex;flex-direction:column;gap:14px}
.v4d-voice{background:linear-gradient(135deg,#fdf2f8,#fff7ed);border:2px solid #fbcfe8;border-radius:16px;padding:14px 16px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.v4d-voice-btn{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,#db2777,#f43f5e);color:#fff;font-weight:800;font-size:.92rem;padding:10px 18px;border-radius:999px;border:none;cursor:pointer;box-shadow:0 4px 12px rgba(219,39,119,.25);transition:transform .15s;font-family:inherit}
.v4d-voice-btn:hover{transform:translateY(-2px)}
.v4d-voice-btn.speaking{animation:v4dPulse 1.2s infinite}
.v4d-voice-btn:disabled{opacity:.5;cursor:not-allowed}
.v4d-voice-status{font-size:.8rem;color:#9d174d;font-weight:600}
@keyframes v4dPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.04)}}
.v4d-council{background:linear-gradient(135deg,#f8fafc,#fff7ed);border:2px solid #fed7aa;border-radius:16px;padding:18px 20px}
.v4d-council-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.v4d-council-head h3{margin:0;font-size:1.06rem;font-weight:800;color:#0f172a;display:flex;align-items:center;gap:8px}
.v4d-council-sub{font-size:.78rem;color:#94a3b8;margin:0 0 10px;line-height:1.6}
.v4d-council-btn{background:linear-gradient(135deg,#f59e0b,#ea580c);color:#fff;font-weight:800;font-size:.85rem;padding:9px 18px;border-radius:999px;border:none;cursor:pointer;box-shadow:0 4px 12px rgba(234,88,12,.25);transition:transform .15s;font-family:inherit}
.v4d-council-btn:hover{transform:translateY(-2px)}
.v4d-council-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:10px}
.v4d-council-card{background:#fff;border:1px solid #f1e4d6;border-radius:14px;padding:12px 14px;transition:all .3s}
.v4d-council-card.active{border-color:#fb923c;background:#fff7ed;box-shadow:0 4px 16px rgba(249,115,22,.15)}
.v4d-council-card-top{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.v4d-council-card-top .ic{font-size:1.2rem}
.v4d-council-card-top .nm{font-weight:800;font-size:.92rem;color:#0f172a}
.v4d-council-card-top .role{font-size:.68rem;color:#94a3b8;margin-left:auto;text-align:right;line-height:1.4}
.v4d-council-card .ev{font-size:.72rem;color:#b45309;font-weight:700;background:#fef3c7;display:inline-block;padding:2px 8px;border-radius:999px;margin:2px 0 8px}
.v4d-council-card .ln{font-size:.83rem;color:#475569;line-height:1.65;margin:4px 0}
.v4d-council-score{display:flex;align-items:center;gap:8px;margin-top:6px}
.v4d-council-score .lab{font-size:.72rem;color:#94a3b8;white-space:nowrap}
.v4d-council-bar{flex:1;height:8px;background:#f1f5f9;border-radius:999px;overflow:hidden}
.v4d-council-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#f59e0b,#ea580c)}
.v4d-council-score .val{font-size:.78rem;font-weight:800;color:#ea580c;width:34px;text-align:right}
.v4d-council-verdict{display:none;margin-top:14px;background:linear-gradient(135deg,#fff1f2,#fff7ed);border:2px solid #fecaca;border-radius:14px;padding:16px}
.v4d-council-verdict.show{display:block;animation:v4dVerdict .4s ease}
@keyframes v4dVerdict{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.v4d-council-verdict .stamp{display:inline-block;background:linear-gradient(135deg,#dc2626,#ea580c);color:#fff;font-weight:900;font-size:.85rem;padding:4px 14px;border-radius:999px;margin-bottom:8px;transform:rotate(-2deg)}
.v4d-council-verdict p{font-size:.92rem;color:#7f1d1d;line-height:1.8;margin:6px 0}
.v4d-qa{background:#fff;border:2px solid #e0e7ff;border-radius:16px;overflow:hidden}
.v4d-qa-head{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;padding:14px 18px}
.v4d-qa-head h3{margin:0;font-size:1.05rem;font-weight:800;display:flex;align-items:center;gap:8px}
.v4d-qa-head .sub{font-size:.76rem;opacity:.92;margin-top:2px}
.v4d-qa-body{height:280px;overflow-y:auto;padding:14px 16px;background:#fafbff;display:flex;flex-direction:column;gap:10px}
.v4d-qa-msg{display:flex;gap:8px;align-items:flex-end}
.v4d-qa-msg.me{flex-direction:row-reverse}
.v4d-qa-avatar{flex:0 0 auto;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:800}
.v4d-qa-msg.ai .v4d-qa-avatar{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff}
.v4d-qa-msg.me .v4d-qa-avatar{background:#e2e8f0;color:#334155}
.v4d-qa-bubble{max-width:78%;padding:9px 13px;border-radius:14px;font-size:.88rem;line-height:1.7}
.v4d-qa-msg.ai .v4d-qa-bubble{background:#fff;border:1px solid #e0e7ff;color:#334155;border-bottom-left-radius:4px}
.v4d-qa-msg.me .v4d-qa-bubble{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border-bottom-right-radius:4px}
.v4d-qa-typing{color:#6366f1;font-size:.82rem}
.v4d-qa-quicks{display:flex;gap:8px;flex-wrap:wrap;padding:10px 16px;background:#fff;border-top:1px solid #eef2ff}
.v4d-qa-quick{background:#eef2ff;color:#4338ca;border:1px solid #c7d2fe;font-size:.8rem;font-weight:700;padding:6px 12px;border-radius:999px;cursor:pointer;transition:all .15s;font-family:inherit}
.v4d-qa-quick:hover{background:#e0e7ff;border-color:#6366f1}
.v4d-qa-inputbar{display:flex;gap:8px;padding:10px 16px;background:#fff;border-top:1px solid #eef2ff}
.v4d-qa-input{flex:1;border:1px solid #c7d2fe;border-radius:999px;padding:9px 16px;font-size:.88rem;outline:none;font-family:inherit}
.v4d-qa-input:focus{border-color:#6366f1}
.v4d-qa-send{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border:none;border-radius:999px;padding:9px 20px;font-weight:800;font-size:.88rem;cursor:pointer;font-family:inherit}
.v4d-debate{margin-top:16px;background:#f8fafc;border:2px solid #e2e8f0;border-radius:16px;padding:16px}
.v4d-debate-head h3{margin:0;font-size:1.02rem;font-weight:800;display:flex;align-items:center;gap:8px;color:#0f172a}
.v4d-debate-head .sub{display:block;font-size:.76rem;color:#64748b;margin-top:4px;line-height:1.6}
.v4d-debate-cols{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
.v4d-debate-col{border-radius:12px;padding:14px;border:1.5px solid}
.v4d-debate-col.pro{background:#f0fdf4;border-color:#86efac}
.v4d-debate-col.con{background:#fef2f2;border-color:#fecaca}
.v4d-debate-top{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-weight:800}
.v4d-debate-top .ic{font-size:1.1rem}
.v4d-debate-top .nm{font-size:.92rem;color:#0f172a}
.v4d-debate-top .side{margin-left:auto;font-size:.72rem;padding:2px 10px;border-radius:999px;font-weight:700}
.v4d-debate-col.pro .side{background:#dcfce7;color:#15803d}
.v4d-debate-col.con .side{background:#fee2e2;color:#b91c1c}
.v4d-debate-col ul{margin:0;padding-left:18px}
.v4d-debate-col li{font-size:.84rem;line-height:1.7;color:#334155;margin-bottom:4px}
.v4d-share{margin-top:14px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.v4d-share-btn{background:linear-gradient(135deg,#059669,#10b981);color:#fff;border:none;border-radius:999px;padding:10px 20px;font-weight:800;font-size:.88rem;cursor:pointer;transition:transform .15s;font-family:inherit}
.v4d-share-btn:hover{transform:translateY(-1px);box-shadow:0 4px 14px rgba(16,185,129,.35)}
.v4d-share-status{font-size:.78rem;color:#64748b}
.v4d-verdict-personal{margin-top:10px;background:#ecfdf5;border:1px solid #a7f3d0;border-radius:10px;padding:10px 12px;font-size:.85rem;color:#065f46;line-height:1.7}
.v4d-verdict-personal strong{color:#047857}
.v4d-debate-col.personal{box-shadow:0 0 0 2px #10b981 inset}
/* v4d-geo-css 多智能体 GEO 决策摘要（AI搜索引擎可引用的独立答案块：结论+量化事实+场景+行动） */
.v4d-geo{background:linear-gradient(135deg,#f5f3ff,#eef2ff);border:1px solid #c7d2fe;border-radius:16px;padding:16px 18px}
.v4d-geo h3{display:flex;align-items:center;gap:8px;margin:0 0 8px;font-size:.98rem;font-weight:800;color:#3730a3}
.v4d-geo .v4d-geo-verdict{font-size:.98rem;line-height:1.8;color:#1e1b4b;margin:4px 0}
.v4d-geo .v4d-geo-verdict strong{color:#4338ca}
.v4d-geo-facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:8px;list-style:none;padding:0;margin:10px 0 8px}
.v4d-geo-facts li{background:#fff;border:1px solid #e0e7ff;border-radius:10px;padding:8px 10px;font-size:.84rem;line-height:1.6;color:#334155}
.v4d-geo-facts li b{color:#1e40af}
.v4d-geo-fit{margin:6px 0;font-size:.88rem;color:#4338ca;line-height:1.7}
.v4d-geo-cta{display:inline-block;margin-top:8px;background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;border-radius:999px;padding:10px 20px;font-weight:800;font-size:.9rem;text-decoration:none;box-shadow:0 4px 12px rgba(79,70,229,.3)}
.v4d-geo-cta:hover{opacity:.92}
/* v4d-cmp 多智能体交互式对比解读（断档领先：同一批商品对不同人群给出不同胜负结论） */
.v4d-cmp{background:#fff;border:1px solid #e2e8f0;border-radius:16px;padding:16px 18px}
.v4d-cmp h3{display:flex;align-items:center;gap:8px;margin:0 0 10px;font-size:.98rem;font-weight:800;color:#0f172a}
.v4d-cmp-personas{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 6px}
.v4d-cmp-chip{padding:8px 14px;border-radius:999px;border:1px solid #e2e8f0;background:#f8fafc;color:#475569;font-size:.85rem;font-weight:700;cursor:pointer;transition:all .15s;user-select:none}
.v4d-cmp-chip.active{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;border-color:transparent;box-shadow:0 2px 8px rgba(79,70,229,.25)}
.v4d-cmp-table{width:100%;border-collapse:collapse;font-size:.84rem;margin:8px 0}
.v4d-cmp-table th,.v4d-cmp-table td{padding:9px 10px;border:1px solid #e2e8f0;text-align:center;line-height:1.5;vertical-align:middle}
.v4d-cmp-table th{background:#f1f5f9;font-weight:800;color:#334155}
.v4d-cmp-table tr.v4d-cmp-win td{background:#eef2ff}
.v4d-cmp-table .cmp-score{font-weight:800;color:#4f46e5}
.v4d-cmp-badge{display:inline-block;background:#4f46e5;color:#fff;border-radius:6px;padding:1px 7px;font-size:.72rem;font-weight:800;margin-left:4px}
.v4d-cmp-verdict{margin-top:10px;background:linear-gradient(135deg,#eef2ff,#f5f3ff);border:1px solid #c7d2fe;border-radius:12px;padding:12px 14px;font-size:.9rem;color:#1e1b4b;line-height:1.8}
.v4d-cmp-verdict strong{color:#4338ca}
.v4d-cmp-cta{display:inline-block;margin-top:6px;color:#4338ca;font-weight:800;text-decoration:underline}
/* v4d-fit 多智能体「买前自检」决策清单（下单前诚实把关，直击怕买错/后悔痛点） */
.v4d-fit{background:#fff;border:1px solid #e2e8f0;border-radius:16px;padding:16px 18px}
.v4d-fit h3{display:flex;align-items:center;gap:8px;margin:0 0 4px;font-size:.98rem;font-weight:800;color:#0f172a}
.v4d-fit-sub{margin:0 0 12px;font-size:.82rem;color:#64748b;line-height:1.6}
.v4d-fit-sub b{color:#4338ca}
.v4d-fit-q{margin:10px 0 4px;font-size:.86rem;font-weight:800;color:#334155;display:flex;align-items:center;gap:6px}
.v4d-fit-q .qnum{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;background:#eef2ff;color:#4338ca;font-size:.72rem;font-weight:800}
.v4d-fit-opts{display:flex;flex-wrap:wrap;gap:8px}
.v4d-fit-opt{padding:8px 14px;border-radius:999px;border:1.5px solid #e2e8f0;background:#f8fafc;color:#475569;font-size:.84rem;font-weight:700;cursor:pointer;transition:all .15s;user-select:none;font-family:inherit}
.v4d-fit-opt:hover{border-color:#a5b4fc}
.v4d-fit-opt.active{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;border-color:transparent;box-shadow:0 2px 8px rgba(79,70,229,.25)}
.v4d-fit-result{margin-top:12px;display:none;border-radius:12px;padding:12px 14px;font-size:.9rem;line-height:1.8}
.v4d-fit-result.show{display:block;animation:v4dVerdict .35s ease}
.v4d-fit-result.buy{background:linear-gradient(135deg,#ecfdf5,#f0fdf4);border:1.5px solid #6ee7b7}
.v4d-fit-result.wait{background:linear-gradient(135deg,#fffbeb,#fef3c7);border:1.5px solid #fcd34d}
.v4d-fit-result.avoid{background:linear-gradient(135deg,#fef2f2,#fdf2f8);border:1.5px solid #fca5a5}
.v4d-fit-stamp{display:inline-block;font-weight:900;font-size:.86rem;border-radius:999px;padding:3px 12px;margin-bottom:6px}
.v4d-fit-result.buy .v4d-fit-stamp{background:#059669;color:#fff}
.v4d-fit-result.wait .v4d-fit-stamp{background:#d97706;color:#fff}
.v4d-fit-result.avoid .v4d-fit-stamp{background:#dc2626;color:#fff}
.v4d-fit-reason{font-size:.86rem;color:#334155;margin:4px 0}
.v4d-fit-reason b{color:#4338ca}
.v4d-fit-cta{display:inline-block;margin-top:8px;background:linear-gradient(135deg,#059669,#10b981);color:#fff;border-radius:999px;padding:9px 18px;font-weight:800;font-size:.86rem;text-decoration:none;box-shadow:0 3px 10px rgba(5,150,105,.25)}
.v4d-fit-cta:hover{transform:translateY(-1px)}
.v4d-fit-cta.ghost{background:#fff;color:#475569;border:1.5px solid #cbd5e1;box-shadow:none}
.v4d-fit-note{margin:10px 0 0;font-size:.74rem;color:#94a3b8;line-height:1.6}
/* v4d-guide 多智能体「犹豫护航」：检测犹豫信号(退出意图/停留/读到底)在关键时刻主动把读者导向对应把关模块（研究：AI在犹豫瞬间介入可将购买时间从15分降到8分、转化近翻倍） */
.v4d-guide{position:fixed;left:16px;bottom:16px;z-index:9999;max-width:min(320px,calc(100vw - 32px));display:none;background:rgba(255,255,255,.97);border:1.5px solid #c7d2fe;border-radius:14px;box-shadow:0 8px 28px rgba(30,27,75,.18);padding:11px 13px;font-size:.84rem;line-height:1.6;color:#1e1b4b}
.v4d-guide.show{display:block;animation:v4dGuideIn .35s ease}
@keyframes v4dGuideIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.v4d-guide-msg{display:block;font-weight:700;color:#312e81}
.v4d-guide-actions{margin-top:8px;display:flex;align-items:center;gap:8px}
.v4d-guide-go{flex:1;background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;border:none;border-radius:999px;padding:8px 14px;font-weight:800;font-size:.82rem;cursor:pointer;font-family:inherit}
.v4d-guide-go:hover{filter:brightness(1.05)}
.v4d-guide-close{background:transparent;border:none;color:#94a3b8;font-size:1rem;cursor:pointer;line-height:1;padding:4px 6px}
.v4d-guide-close:hover{color:#475569}
@media(max-width:640px){.v4d-guide{left:10px;right:10px;bottom:10px;max-width:none}}
@media(max-width:640px){.v4d-proscons{grid-template-columns:1fr}.v4d-summary{flex-direction:column}.v4d-points{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}.v4d-feedback{padding:16px}.v4d-fb-grid{grid-template-columns:1fr}.v4d-debate-cols{grid-template-columns:1fr}.v4d-geo-facts{grid-template-columns:1fr}.v4d-cmp-table{font-size:.74rem}.v4d-cmp-table th,.v4d-cmp-table td{padding:7px 6px}}
/* v4d-hot-css AI热点·人话解读官 */
.v4d-hot{background:linear-gradient(160deg,#fff7ed,#fef2f2);border:1px solid #fecaca;border-radius:16px;padding:16px 18px}
.v4d-hot h3{display:flex;align-items:center;gap:8px;margin:0 0 8px;font-size:.98rem;font-weight:800;color:#7f1d1d}
.v4d-hot-ev{display:flex;gap:8px;align-items:flex-start;background:#fff;border:1px solid #fee2e2;border-radius:12px;padding:10px 12px;margin:6px 0;font-size:.84rem;color:#7f1d1d;line-height:1.7}
.v4d-hot-ev b{flex:none;font-size:.72rem;background:#fee2e2;color:#b91c1c;padding:2px 8px;border-radius:999px;white-space:nowrap}
.v4d-hot-verdict{margin:10px 0;background:#fff;border-left:4px solid #ef4444;border-radius:10px;padding:12px 14px;font-size:.94rem;color:#450a0a;line-height:1.9}
.v4d-hot-verdict b{color:#b91c1c}
.v4d-hot-title{margin:10px 0 6px;font-size:.88rem;font-weight:800;color:#7f1d1d}
.v4d-hot-fears{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:8px}
.v4d-hot-fear{background:#fff;border:1px solid #fecaca;border-radius:12px;overflow:hidden}
.v4d-hot-fear-head{display:flex;gap:8px;align-items:center;padding:9px 11px;cursor:pointer;user-select:none}
.v4d-hot-fear-head span{font-size:1.1rem;flex:none}
.v4d-hot-fear-head b{font-size:.88rem;color:#7f1d1d;flex:none}
.v4d-hot-fear-head em{font-style:normal;font-size:.72rem;color:#9f1239;line-height:1.4}
.v4d-hot-fear.open .v4d-hot-fear-head{background:#fef2f2}
.v4d-hot-fear-body{margin:0;padding:8px 11px;border-top:1px solid #fee2e2;background:#fef2f2;font-size:.8rem;color:#7f1d1d;line-height:1.7}
.v4d-hot-cta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px;align-items:center}
.v4d-hot-btn{display:inline-block;background:linear-gradient(135deg,#ef4444,#f97316);color:#fff;font-weight:800;font-size:.9rem;padding:11px 20px;border-radius:12px;text-decoration:none;box-shadow:0 4px 12px rgba(239,68,68,.25);transition:transform .15s}
.v4d-hot-btn:hover{transform:translateY(-2px)}
.v4d-hot-share{background:#fff;border:1px solid #fecaca;color:#b91c1c;border-radius:12px;padding:11px 16px;font-weight:700;font-size:.88rem;cursor:pointer;font-family:inherit}
.v4d-hot-note{margin-top:8px;font-size:.76rem;color:#b91c1c;line-height:1.6}