.sg-wrap{font-family:'Barlow',Arial,sans-serif;color:#3a3d45;line-height:1.6;font-size:15px;max-width:100%}
.sg-wrap *{box-sizing:border-box;margin:0;padding:0}

/* WhatsApp悬浮 */
.sg-wa{
  position:fixed;bottom:28px;right:28px;z-index:9999;
  width:56px;height:56px;border-radius:50%;
  background:#25d366;display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 20px rgba(37,211,102,0.5);
  cursor:pointer;text-decoration:none;transition:transform 0.2s;
}
.sg-wa:hover{transform:scale(1.1)}
.sg-wa svg{width:28px;height:28px;fill:white}
.sg-wa-tip{
  position:absolute;right:64px;top:50%;transform:translateY(-50%);
  background:#111;color:#fff;font-size:12px;font-weight:600;
  padding:6px 12px;border-radius:6px;white-space:nowrap;
  opacity:0;pointer-events:none;transition:opacity 0.2s;
}
.sg-wa:hover .sg-wa-tip{opacity:1}

/* 通用 */
.sg-section{margin-bottom:48px}
.sg-divider{height:1px;background:#e8eaef;margin:40px 0}
.sg-label{font-size:11px;font-weight:700;letter-spacing:3px;text-transform:uppercase;color:#1a56db;margin-bottom:6px}
.sg-h2{font-size:26px;font-weight:800;color:#111214;margin-bottom:14px;line-height:1.2}
.sg-body{font-size:15px;color:#3a3d45;line-height:1.8;margin-bottom:12px}

/* Pills */
.sg-pills{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.sg-pill{background:#f3f5fa;border:1px solid #e8eaef;border-radius:20px;padding:5px 14px;font-size:13px;font-weight:500;color:#3a3d45}

/* 6大功能卡片 */
.sg-feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}
@media(max-width:768px){.sg-feat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.sg-feat-grid{grid-template-columns:1fr}}
.sg-feat{background:#f9fafb;border:1px solid #e8eaef;border-radius:10px;padding:20px;transition:border-color 0.2s}
.sg-feat:hover{border-color:#1a56db}
.sg-feat-icon{font-size:26px;margin-bottom:10px;display:block}
.sg-feat-title{font-size:14px;font-weight:700;color:#111214;margin-bottom:6px}
.sg-feat-desc{font-size:13px;color:#7a7f8e;line-height:1.6}

/* 规格表折叠 */
.sg-spec-btn{
  display:flex;align-items:center;justify-content:space-between;
  width:100%;background:#111214;color:#fff;
  border:none;border-radius:10px 10px 0 0;
  padding:15px 22px;font-size:14px;font-weight:700;
  cursor:pointer;font-family:inherit;
}
.sg-spec-btn .sg-arr{transition:transform 0.25s;font-size:16px}
.sg-spec-btn.open .sg-arr{transform:rotate(180deg)}
.sg-spec-body{border:1px solid #e8eaef;border-top:none;border-radius:0 0 10px 10px;overflow:hidden;max-height:0;transition:max-height 0.4s ease}
.sg-spec-body.open{max-height:2400px}
.sg-spec-table{width:100%;border-collapse:collapse;font-size:14px}
.sg-spec-table tr:nth-child(even) td{background:#f9fafb}
.sg-spec-table tr:hover td{background:rgba(26,86,219,0.04)}
.sg-spec-table td{padding:12px 18px;border-bottom:1px solid #e8eaef;vertical-align:top}
.sg-spec-table td:first-child{color:#7a7f8e;font-weight:500;width:42%}
.sg-spec-table td:last-child{color:#111214;font-weight:600}
.sg-hl{color:#1a56db!important}

/* 包装清单 */
.sg-acc{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.sg-acc-item{background:#f9fafb;border:1px solid #e8eaef;border-radius:6px;padding:8px 14px;font-size:13px;color:#3a3d45}

/* B2B数字卡片 */
.sg-b2b-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:20px}
@media(max-width:600px){.sg-b2b-grid{grid-template-columns:repeat(2,1fr)}}
.sg-b2b-card{background:#fff;border:1px solid #e8eaef;border-radius:10px;padding:20px;text-align:center}
.sg-b2b-num{font-size:34px;font-weight:800;color:#1a56db;line-height:1;margin-bottom:6px}
.sg-b2b-lbl{font-size:12px;color:#7a7f8e;line-height:1.5}

/* OEM选项 */
.sg-oem-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px;margin-top:14px}
.sg-oem-item{display:flex;align-items:center;gap:8px;font-size:13px;color:#3a3d45;background:#f3f5fa;border:1px solid #e8eaef;border-radius:6px;padding:10px 14px}
.sg-oem-item::before{content:"✦";color:#1a56db;flex-shrink:0}

/* 发货信息 */
.sg-ship-box{margin-top:18px;background:#f9fafb;border:1px solid #e8eaef;border-radius:10px;padding:18px 22px;font-size:13px;color:#3a3d45;line-height:1.9}

/* 物流规格 */
.sg-logistics{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px;margin-top:16px}
.sg-logistics-card{background:#f9fafb;border:1px solid #e8eaef;border-radius:8px;padding:16px 18px}
.sg-logistics-label{font-size:11px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:#7a7f8e;margin-bottom:6px}
.sg-logistics-val{font-size:15px;font-weight:700;color:#111214}

/* FAQ */
.sg-faq{margin-top:14px}
.sg-faq-item{border-bottom:1px solid #e8eaef}
.sg-faq-q{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 0;font-size:15px;font-weight:600;color:#111214;cursor:pointer}
.sg-faq-q .sg-arr{font-size:16px;color:#7a7f8e;transition:transform 0.2s;flex-shrink:0}
.sg-faq-item.open .sg-faq-q .sg-arr{transform:rotate(180deg)}
.sg-faq-a{display:none;padding:0 0 16px;font-size:14px;color:#3a3d45;line-height:1.8}
.sg-faq-item.open .sg-faq-a{display:block}

/* 询盘表单 */
.sg-form-wrap{background:linear-gradient(135deg,#111214 0%,#1a2540 100%);border-radius:14px;padding:44px 36px;margin-top:48px}
@media(max-width:600px){.sg-form-wrap{padding:28px 18px}}
.sg-form-wrap h2{font-size:28px;font-weight:800;color:#fff;margin-bottom:8px}
.sg-form-wrap p{color:#9aa0b8;font-size:14px;margin-bottom:26px}
.sg-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:600px){.sg-form-grid{grid-template-columns:1fr}}
.sg-field{display:flex;flex-direction:column;gap:5px}
.sg-field.full{grid-column:1/-1}
.sg-field label{font-size:11px;font-weight:600;color:#9aa0b8;letter-spacing:1px;text-transform:uppercase}
.sg-field input,.sg-field select,.sg-field textarea{background:rgba(255,255,255,0.07);border:1px solid rgba(255,255,255,0.12);border-radius:8px;padding:12px 14px;font-size:14px;color:#fff;outline:none;transition:border-color 0.2s;width:100%;font-family:inherit}
.sg-field input::placeholder,.sg-field textarea::placeholder{color:rgba(255,255,255,0.3)}
.sg-field input:focus,.sg-field select:focus,.sg-field textarea:focus{border-color:rgba(26,86,219,0.7)}
.sg-field select option{background:#1a2540;color:#fff}
.sg-field textarea{resize:vertical;min-height:90px}
.sg-submit{grid-column:1/-1;background:#1a56db;color:#fff;border:none;border-radius:8px;padding:15px;font-size:15px;font-weight:700;cursor:pointer;width:100%;font-family:inherit;transition:background 0.2s;margin-top:4px}
.sg-submit:hover{background:#1447b5}
.sg-form-note{grid-column:1/-1;text-align:center;font-size:12px;color:#6b7590;margin-top:6px}
.sg-form-ok{display:none;text-align:center;padding:28px;color:#fff}
.sg-form-ok .ok-icon{font-size:48px;margin-bottom:12px}

/* Tags */
.sg-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.sg-tag{font-size:12px;padding:4px 12px;border-radius:4px;background:#f3f5fa;border:1px solid #e8eaef;color:#7a7f8e}