:root{
  --soft:#F5F7FA;--band:#F8FAFD;--line:#E3E8F0;--line2:#EEF1F7;
  --ink:#333A46;--ink2:#5B6472;--ink3:#98A0B3;
  --blue:#2E6BE6;--card:#FFFFFF;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--soft);color:var(--ink);font-family:'Segoe UI',Arial,'Helvetica Neue',sans-serif;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
.sp-wrap{max-width:1180px;margin:0 auto;padding:0 24px}
section{padding:56px 0}

/* 通用区块头 */
.sp-sec-head{text-align:center;max-width:820px;margin:0 auto 40px}
.sp-h3small{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.34em;text-transform:uppercase;color:var(--blue);background:rgba(46,107,230,.09);border-radius:999px;padding:7px 16px;margin-bottom:16px}
.sp-sec-head h2{font-size:clamp(24px,3vw,34px);font-weight:800;letter-spacing:-.01em;line-height:1.25;color:#2C3038}
.sp-sec-head p:last-child{margin-top:12px;font-size:13.5px;color:var(--ink2);line-height:1.9}

/* Description 头部 */
.sp-dhead{display:flex;justify-content:space-between;align-items:center;gap:18px;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:30px;flex-wrap:wrap}
.sp-dhead h2{font-size:30px;font-weight:800;color:#5A6472;letter-spacing:-.01em}
.sp-dtabs{display:flex;gap:6px}
.sp-dtab{font-size:11.5px;font-weight:800;letter-spacing:.12em;color:#7B8494;background:#E8EDF5;border-radius:999px;padding:9px 18px;cursor:pointer;user-select:none;transition:.25s;border:none;font-family:inherit}
.sp-dtab.on{background:#fff;color:var(--blue);box-shadow:0 2px 8px rgba(46,107,230,.16)}

/* 白卡 */
.sp-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:38px 42px}
.sp-tagrow{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.sp-tag{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:800;padding:6px 14px;border-radius:999px}
.sp-tag.purple{background:#EFE7FF;color:#7C3AED}
.sp-tag.green{background:#E2F6E9;color:#15803D}
.sp-tag.orange{background:#FDEEDA;color:#C2610A}
.sp-h3{font-size:clamp(22px,2.6vw,30px);font-weight:800;color:#333A46;line-height:1.3;letter-spacing:-.01em}
.sp-intro2{margin-top:14px;font-size:13.5px;color:var(--ink2);line-height:2;font-weight:400;max-width:760px}

/* 规格网格 */
.sp-specs{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-top:26px}
.sp-spec{background:var(--band);border:1px solid var(--line2);border-radius:12px;padding:16px 12px;text-align:center}
.sp-spec .sp-ico{font-size:21px;line-height:1}
.sp-k{display:block;margin-top:8px;font-size:9.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--ink3)}
.sp-v{margin-top:3px;display:block;font-size:12.5px;font-weight:800;color:#3A4150;line-height:1.5}
.sp-ver{display:flex;flex-wrap:wrap;gap:18px;justify-content:center;margin-top:22px;font-size:13px;font-weight:600;color:#2F5B48}
.sp-hr{border:none;border-top:1px solid var(--line);margin:26px 0}

/* 介绍卡 + 配图 */
.sp-intro{display:grid;grid-template-columns:1.12fr .88fr;gap:22px;margin-top:24px;align-items:stretch}
.sp-intro .sp-card{margin:0}
.sp-intro-fig{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column}
.sp-intro-fig img{width:100%;flex:1;min-height:300px;object-fit:cover;transition:transform .5s ease}
.sp-intro-fig img,.sp-gtile img,.sp-colla img{cursor:zoom-in}
.sp-intro-fig:hover img,.sp-colla figure:hover img{transform:scale(1.03)}
.sp-sec-gap{margin-top:60px}

/* 图库网格（无图注） */
.sp-mosaic{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:26px}
.sp-live{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
.sp-gtile{background:linear-gradient(150deg,#EEF1F8,#E6EBF5);border-radius:14px;padding:9px;overflow:hidden}
.sp-gtile img{width:100%;border-radius:10px;transition:transform .5s ease}
.sp-gtile:hover img{transform:scale(1.05)}
.sp-live .sp-gtile img{aspect-ratio:4/4.5;object-fit:cover}
.sp-mosaic .sp-gtile img{aspect-ratio:1/1;object-fit:cover}

/* Product Details */
.sp-details{background:#fff}
.sp-details .sp-wrap{border-top:1px solid var(--line);padding-top:56px}
.sp-din{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start}
.sp-h4{font-size:18px;font-weight:800;color:#2C3038;margin-top:4px}
.sp-p{margin-top:12px;font-size:13.5px;color:var(--ink2);line-height:2}
.sp-ul{list-style:none;margin-top:16px;display:flex;flex-direction:column;gap:10px}
.sp-ul li{font-size:13px;color:#4B5563;line-height:1.75;padding-left:24px;position:relative}
.sp-ul li::before{content:"✓";position:absolute;left:0;top:0;color:#16A34A;font-weight:800}
.sp-table{width:100%;border-collapse:collapse;margin-top:22px;border:1px solid var(--line);font-size:12.5px}
.sp-table td{border:1px solid var(--line);padding:9px 12px;vertical-align:top}
.sp-table td:first-child{background:#F7F9FC;font-weight:800;color:#566;white-space:nowrap;width:130px}
.sp-table td:last-child{color:#4B5563;line-height:1.7}
.sp-colla{display:flex;flex-direction:column;gap:14px}
.sp-colla img{border-radius:12px;object-fit:cover;width:100%}
.sp-colla .big{height:400px}
.sp-colla .side{height:150px}
.sp-mini{background:#F6F8FC;border:1px dashed #C9D4E4;border-radius:12px;padding:18px;font-size:12.5px;color:#55607A;line-height:1.9}
.sp-mini b{color:#333A46}

/* How to Order */
.sp-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:8px}
.sp-step{background:var(--band);border:1px solid var(--line2);border-radius:14px;padding:24px 18px;text-align:center}
.sp-num{width:42px;height:42px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:17px;margin:0 auto 14px}
.sp-step h4{font-size:14.5px;font-weight:800;color:#2C3038}
.sp-step p{margin-top:8px;font-size:12.5px;color:#6B7280;line-height:1.8}

/* FAQ */
.sp-faq{background:#fff}
.sp-faq .sp-wrap{border-top:1px solid var(--line);padding-top:56px}
.sp-faqbox{background:#fff;border:1px solid #DBE3F0;border-radius:12px;margin-bottom:10px;overflow:hidden}
.sp-faqbox summary{list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 20px;font-size:14.5px;font-weight:800;color:#333A46;cursor:pointer;user-select:none}
.sp-faqbox summary::-webkit-details-marker{display:none}
.sp-faq-arrow{flex:none;font-size:10px;color:var(--ink3);transition:transform .3s;background:#EEF1F7;border-radius:50%;width:26px;height:26px;display:flex;align-items:center;justify-content:center}
.sp-faqbox[open] .sp-faq-arrow{transform:rotate(180deg)}
.sp-faqbox .a{padding:0 20px 18px;font-size:13px;color:#55607A;line-height:1.95}

/* CTA */
.sp-cta{background:linear-gradient(100deg,#7C3AED,#A855F7 60%,#C084FC);color:#fff;text-align:center}
.sp-cta h2{font-size:clamp(26px,3.4vw,36px);font-weight:800;letter-spacing:-.01em}
.sp-cta .usp{margin-top:14px;font-size:12.5px;letter-spacing:.06em;font-weight:700;opacity:.92}
.sp-cta .sub{max-width:54ch;margin:12px auto 0;font-size:13.5px;line-height:1.9;opacity:.85}
.sp-cta-btn{margin-top:28px;display:inline-flex;background:#fff;color:#7C3AED;border-radius:999px;padding:14px 36px;font-size:13px;font-weight:800;letter-spacing:.04em;transition:.3s}
.sp-cta-btn:hover{background:#F3E8FF}

/* SEO 长文 */
.sp-seo{padding:44px 0;background:#fff}
.sp-seo-block{max-width:820px;margin:0 auto 44px}
.sp-seo-block:last-child{margin-bottom:0}
.sp-seo-block h3{font-size:13px;font-weight:800;letter-spacing:.28em;text-transform:uppercase;color:#8B93A3}
.sp-seo-block h4{font-size:21px;font-weight:800;color:#333A46;margin-top:10px;line-height:1.4}
.sp-seo-block p{font-size:13.5px;color:#5B6472;line-height:2;margin-top:14px}
.sp-seo-block ul{list-style:none;margin-top:14px;display:flex;flex-direction:column;gap:9px}
.sp-seo-block ul li{font-size:13px;color:#55607A;line-height:1.8;padding-left:22px;position:relative}
.sp-seo-block ul li::before{content:"✓";position:absolute;left:0;color:#16A34A;font-weight:800}
.sp-seo-block b{color:#333A46}

/* 灯箱 */
.sp-lb{position:fixed;inset:0;z-index:99;background:rgba(18,20,24,.94);display:none;align-items:center;justify-content:center;padding:5vw;cursor:zoom-out}
.sp-lb.open{display:flex;animation:spFade .25s ease}
@keyframes spFade{from{opacity:0}to{opacity:1}}
.sp-lb img{max-width:100%;max-height:100%;object-fit:contain;border-radius:6px;box-shadow:0 30px 90px rgba(0,0,0,.55)}
body.spLbOpen{overflow:hidden}

/* 响应式 */
@media (max-width:1080px){
  .sp-intro,.sp-din{grid-template-columns:1fr;gap:44px}
  .sp-mosaic{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .sp-wrap{padding:0 20px}
  section{padding:46px 0}
  .sp-card{padding:28px 22px}
  .sp-live,.sp-steps{grid-template-columns:repeat(2,1fr)}
  .sp-colla .big{height:320px}
  .sp-dtabs{width:100%}
}
@media (max-width:560px){
  .sp-live,.sp-mosaic,.sp-steps{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}