/* ===== 设计令牌 ===== */
:root{
  --bg:#F5F6F8;
  --surface:#ffffff;
  --ink:#12293B;
  --muted:#5A6B78;
  --navy:#123A56;
  --navy-deep:#0C2233;
  --accent:#F59E0B;
  --accent-deep:#E07B00;
  --sky:#7FB6DC;
  --line:#E4E8ED;
  --radius:14px;
  --shadow:0 12px 32px rgba(13,34,51,.10);
  --font:"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.2;font-weight:800}

.container{width:min(1160px,92%);margin-inline:auto}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:.82em 1.5em;border-radius:999px;font-weight:700;font-size:.98rem;
  border:1px solid transparent;cursor:pointer;transition:.2s;
}
.btn-accent{background:var(--accent);color:#1a1200;box-shadow:0 8px 20px rgba(245,158,11,.35)}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.35);backdrop-filter:blur(4px)}
.btn-ghost:hover{background:rgba(255,255,255,.22)}
.btn-sm{padding:.5em 1.1em;font-size:.9rem}
.btn-block{width:100%}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.05rem;color:var(--navy)}
.brand-logo{
  width:34px;height:34px;border-radius:9px;object-fit:cover;flex:none;
  box-shadow:0 4px 10px rgba(229,36,42,.3);
}
.nav-links{display:flex;gap:26px;margin-inline:auto;font-weight:600;font-size:.96rem}
.nav-links a{color:var(--muted);position:relative;padding:6px 0}
.nav-links a:hover,.nav-links a.active{color:var(--navy)}
.nav-links a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--accent);
}
.header-right{display:flex;align-items:center;gap:14px}
.lang-toggle{display:flex;align-items:center;gap:2px;background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:4px 10px}
.lang-btn{font-size:.85rem;font-weight:700;color:var(--muted);cursor:pointer;padding:2px 6px;border-radius:999px;user-select:none}
.lang-btn.active{background:var(--navy);color:#fff}
.lang-sep{color:var(--line)}

/* ===== 视图切换 ===== */
.view[hidden]{display:none}

/* ===== Hero ===== */
.hero{position:relative;color:#fff;overflow:hidden}
.hero-img{
  position:absolute;inset:0;
  background:url("../img/hero.jpg") center/cover no-repeat;
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(8,28,44,.82) 0%,rgba(12,34,51,.55) 48%,rgba(12,34,51,.18) 100%);
}
.hero-inner{position:relative;padding:104px 0 150px;max-width:760px}
.eyebrow{
  display:inline-block;font-size:.85rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:var(--accent);margin-bottom:14px;
}
.hero-title{font-size:clamp(2.4rem,6vw,4rem);font-weight:900;line-height:1.12;margin-bottom:20px}
.hero-sub{font-size:1.12rem;color:rgba(255,255,255,.9);max-width:560px;margin-bottom:30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:44px}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.25);padding-top:26px}
.hero-stats strong{display:block;font-size:1.35rem;font-weight:800;color:#fff}
.hero-stats span{font-size:.88rem;color:rgba(255,255,255,.75)}

/* ===== 穹弧签名分隔 ===== */
.arc-divider{background:var(--bg);margin-top:-1px}
.arc-divider svg{display:block}

/* ===== 区块 ===== */
.section{padding:88px 0}
.section-alt{background:var(--surface)}
.section-dark{background:var(--navy-deep);color:#fff}
.section-head{margin-bottom:48px}
.section-head.center{text-align:center}
.section-title{font-size:clamp(1.6rem,3.4vw,2.3rem);font-weight:800;margin-bottom:12px}
.section-sub{color:var(--muted);max-width:640px;font-size:1.02rem}
.section-head.center .section-sub{margin-inline:auto}

/* ===== 网格 ===== */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* ===== 产品卡片 ===== */
.pt-card{
  background:var(--surface);border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
  display:flex;flex-direction:column;transition:.25s;
}
.pt-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(13,34,51,.16)}
.pt-card img{aspect-ratio:4/3;object-fit:cover;width:100%}
.pt-body{padding:22px 22px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.pt-body h3{font-size:1.12rem}
.pt-body p{color:var(--muted);font-size:.94rem;flex:1}
.pt-link{color:var(--accent-deep);font-weight:700;font-size:.9rem}

/* ===== 为什么 ===== */
.why-item{
  background:var(--bg);border-radius:var(--radius);padding:24px;border:1px solid var(--line);
}
.why-item .why-ic{color:var(--accent);margin-bottom:12px;display:flex}
.why-item h3{font-size:1.05rem;margin-bottom:8px}
.why-item p{color:var(--muted);font-size:.92rem;margin:0}

/* ===== CTA 块 ===== */
.cta-block{text-align:center;max-width:680px;margin-inline:auto}
.cta-block .cta-title{font-size:clamp(1.6rem,3.4vw,2.2rem);margin-bottom:12px}
.cta-block .cta-sub{color:rgba(255,255,255,.82);margin-bottom:28px;font-size:1.05rem}
.cta-block.light .cta-title{color:var(--navy-deep)}
.cta-block.light .cta-sub{color:var(--muted)}
.cta-strip{background:var(--navy-deep);color:#fff;padding:72px 0;text-align:center}
.cta-strip .cta-title{font-size:clamp(1.6rem,3.4vw,2.4rem);color:#fff;margin:0 0 12px}
.cta-strip .cta-sub{color:rgba(255,255,255,.72);max-width:600px;margin:0 auto 28px;font-size:1.05rem}

/* ===== 页头 ===== */
.page-head{background:var(--navy-deep);color:#fff;padding:72px 0 64px}
.page-head .eyebrow{color:var(--accent)}
.page-title{font-size:clamp(1.9rem,4vw,2.8rem);font-weight:900;margin-bottom:12px}
.page-sub{color:rgba(255,255,255,.8);max-width:720px;font-size:1.05rem;line-height:1.6;word-break:normal;overflow-wrap:break-word;white-space:normal}

/* ===== 产品详情 ===== */
.stack{display:flex;flex-direction:column;gap:64px}
.prod-block{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.prod-block.rev .prod-media{order:2}
.prod-media img{border-radius:var(--radius);box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover;width:100%}
.prod-carousel{position:relative;width:100%;aspect-ratio:4/3;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.prod-carousel img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;animation:prodFade 16s infinite}
.prod-carousel img:nth-child(1){animation-delay:0s}
.prod-carousel img:nth-child(2){animation-delay:4s}
.prod-carousel img:nth-child(3){animation-delay:8s}
.prod-carousel img:nth-child(4){animation-delay:12s}
@keyframes prodFade{0%{opacity:0}6%{opacity:1}18%{opacity:1}25%{opacity:0}100%{opacity:0}}
.prod-copy .section-title{font-size:1.5rem;margin-bottom:10px}
.prod-copy p{color:var(--muted);margin-bottom:16px}
.prod-feats{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px}
.prod-feats li{font-size:.92rem;font-weight:600;display:flex;align-items:flex-start;gap:8px;color:var(--ink)}
.prod-feats li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:7px;flex:none}

/* ===== 工厂 ===== */
.about-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.about-media img{border-radius:var(--radius);box-shadow:var(--shadow);aspect-ratio:16/10;object-fit:cover;width:100%}
.about-copy p{color:var(--muted);margin:0 0 18px}
.check-list{display:flex;flex-direction:column;gap:12px}
.check-list li{font-weight:600;display:flex;gap:10px;align-items:flex-start}
.check-list li::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--accent);margin-top:7px;flex:none}

/* ===== 工厂实拍证据 ===== */
.evidence{margin-top:44px}
.evidence-title{font-size:1.02rem;font-weight:800;color:var(--navy);margin-bottom:16px;display:flex;align-items:center;gap:10px}
.evidence-title::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--accent);flex:none}
.evidence-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:18px}
.evidence-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.evidence-item img{aspect-ratio:4/3;object-fit:cover;width:100%;display:block}
.evidence-item .ev-body{padding:12px 14px 14px}
.evidence-item .ev-body strong{display:block;font-size:.94rem;color:var(--navy)}
.evidence-item .ev-body span{color:var(--muted);font-size:.82rem}

/* ===== 指标 ===== */
.metric{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:22px;text-align:center;
}
.metric strong{display:block;font-size:1.5rem;font-weight:900;color:var(--navy);margin-bottom:4px}
.metric span{color:var(--muted);font-size:.9rem}

/* ===== 数据条 ===== */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{text-align:center;padding:30px 16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.stat strong{display:block;font-size:2.1rem;font-weight:900;color:var(--accent);margin-bottom:6px}
.stat span{color:var(--muted);font-size:.95rem}

/* ===== 定制流程 ===== */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 20px}
.step-n{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:var(--accent);color:#fff;font-weight:800;margin-bottom:14px}
.step h3{font-size:1.05rem;margin-bottom:8px}
.step p{color:var(--muted);font-size:.92rem;margin:0}

/* ===== FAQ ===== */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;margin-bottom:12px}
.faq-item summary{cursor:pointer;font-weight:700;color:var(--navy);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.3rem;color:var(--accent);font-weight:700;transition:transform .2s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{color:var(--muted);margin:12px 0 0;font-size:.95rem;line-height:1.7}

/* ===== 案例 ===== */
.proj-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  display:flex;flex-direction:column;
}
.proj-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.proj-body{padding:22px 22px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.proj-body h3{font-size:1.12rem}
.proj-body p{color:var(--muted);font-size:.94rem;margin:0}

/* ===== 联系 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.contact-list{display:flex;flex-direction:column;gap:16px;margin-top:22px}
.contact-list li{display:flex;flex-direction:column;gap:2px;padding:16px 18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.wa-cta{display:inline-flex;align-items:center;gap:8px;background:#25D366;color:#fff;font-weight:700;padding:13px 24px;border-radius:999px;margin-bottom:18px;box-shadow:0 8px 18px rgba(37,211,102,.32);transition:transform .25s ease,background .25s ease}
.wa-cta:hover{transform:translateY(-2px);background:#1eb85a}
.contact-label{font-size:.78rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-deep)}
.contact-value{font-size:1.05rem;font-weight:700}
.contact-link{color:var(--navy);text-decoration:none}
.contact-link:hover{color:var(--accent-deep);text-decoration:underline}
.contact-note{color:var(--muted);font-size:.82rem;margin-top:16px}
.inquiry-form{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:30px;display:flex;flex-direction:column;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-weight:700;font-size:.9rem}
.field input,.field textarea,.field select{
  font:inherit;padding:.72em .9em;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);width:100%;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}
.form-feedback{font-size:.92rem;font-weight:600}

/* ===== 页脚 ===== */
.site-footer{background:var(--navy-deep);color:rgba(255,255,255,.75);padding:40px 0 0}
.footer-grid{display:grid;grid-template-columns:1.9fr 1fr 1.2fr 1.3fr;gap:36px;padding-inline:clamp(20px,6vw,84px)}
.footer-col{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.footer-brand-wrap{display:flex;flex-direction:column;align-items:flex-start;gap:6px}
.footer-logo{width:32px;height:32px;border-radius:7px;object-fit:cover;flex:none;box-shadow:0 3px 8px rgba(0,0,0,.3)}
.footer-brand{font-weight:800;color:#fff;font-size:1.05rem}
.footer-tag{font-size:1.25rem;margin:0;color:rgba(255,255,255,.78);line-height:1.55;white-space:pre-line;font-weight:600}
.footer-title{color:#fff;font-size:.95rem;font-weight:700;margin:0 0 4px}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:8px;margin:0;padding:0}
.footer-links a{color:rgba(255,255,255,.78);text-decoration:none;transition:color .2s ease;font-size:.9rem}
.footer-links a:hover{color:#fff}
.footer-bottom{margin-top:32px;padding:18px 0;border-top:1px solid rgba(255,255,255,.12)}
.footer-copy{font-size:.85rem;margin:0;text-align:center;color:rgba(255,255,255,.6)}

/* ===== 响应式 ===== */
@media (max-width:980px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .stats-grid,.steps-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid,.prod-block{grid-template-columns:1fr}
  .prod-block.rev .prod-media{order:0}
  .contact-grid{grid-template-columns:1fr}
  .nav-links{gap:16px}
}
@media (max-width:980px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:720px){
  .grid-2,.grid-4{grid-template-columns:1fr}
  .stats-grid,.steps-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .nav-links{display:none}
  .header-inner{justify-content:space-between}
  .section{padding:64px 0}
  .hero-inner{padding:84px 0 130px}
  .hero-stats{gap:24px}
  .prod-feats{grid-template-columns:1fr}
}

/* ===== 认证卡 & 动效增强 ===== */
.certs{margin-top:40px}
.certs-grid{gap:16px}
.cert-item{background:#fff}
.cert-item img{aspect-ratio:3/4;object-fit:contain;background:#fff;padding:6px;transition:transform .45s ease}
.cert-item:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(13,34,51,.18)}

/* 卡片统一 hover 上浮 + 阴影 */
.evidence-item,.proj-card,.prod-block{transition:transform .3s ease,box-shadow .3s ease}
.evidence-item:hover,.proj-card:hover{transform:translateY(-5px);box-shadow:0 16px 36px rgba(13,34,51,.16)}
.prod-block:hover{transform:translateY(-4px)}
.prod-media img,.pt-card img,.proj-card img{transition:transform .6s ease}
.prod-media:hover img,.pt-card:hover img,.proj-card:hover img{transform:scale(1.04)}

/* hero 背景缓慢推进 */
@keyframes heroZoom{from{transform:scale(1)}to{transform:scale(1.08)}}
.hero-img{animation:heroZoom 18s ease-in-out infinite alternate}

/* 滚动渐入 */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease;will-change:opacity,transform}
.reveal.in{opacity:1;transform:none}

/* 主题色按钮轻浮动（提示行动） */
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
.btn-primary{animation:floatY 3.5s ease-in-out infinite}

/* ===== 视频实拍区 ===== */
.videos{margin-top:40px}
.export{margin-top:40px}
.video-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.video-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s ease,box-shadow .3s ease}
.video-card:hover{transform:translateY(-5px);box-shadow:0 16px 36px rgba(13,34,51,.16)}
.video-card video{width:100%;aspect-ratio:16/9;object-fit:cover;display:block;background:#000}
.video-card .ev-body{padding:12px 14px 14px}
.video-card .ev-body strong{display:block;font-size:.94rem;color:var(--navy)}
.video-card .ev-body span{color:var(--muted);font-size:.82rem}

/* ===== 产品上传（管理页 #upload） ===== */
.footer-admin{font-size:.8rem;color:var(--muted)}
.footer-admin:hover{color:var(--accent-deep)}
.upload-wrap{display:grid;gap:22px;max-width:900px}
.up-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow)}
.up-h3{font-size:1rem;color:var(--navy);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.up-h3::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--accent);display:inline-block}
.up-grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.up-note{font-size:.82rem;color:var(--muted);margin:0 0 12px}
.up-specrow{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.up-specrow input{flex:1 1 260px;min-width:200px;padding:11px 14px;border:1px solid var(--line);border-radius:10px;font:inherit;font-size:.92rem;color:var(--ink);background:#fff;outline:none}
.up-specrow input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(245,158,11,.18)}
.up-drop{display:block;margin:0 0 14px;border:1.5px dashed #c7d0d8;border-radius:12px;padding:18px 16px;text-align:center;cursor:pointer;background:#fbfcfd;transition:border-color .15s,background .15s,box-shadow .15s}
.up-drop:hover,.up-drop.over{border-color:var(--accent);background:#fff8ec;box-shadow:0 0 0 3px rgba(245,158,11,.12)}
.up-drop strong{display:block;color:var(--navy);font-size:.95rem;margin-bottom:4px}
.up-drop span{display:block;font-size:.8rem;color:var(--muted);line-height:1.5}
.up-drop input{display:none}
.up-drop.busy{cursor:progress;background:#fff8ec}
.up-imgs{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.up-slot{position:relative;aspect-ratio:1/1;border:1.5px dashed #c7d0d8;border-radius:12px;background:#fbfcfd;display:grid;place-items:center;overflow:hidden;cursor:pointer;transition:border-color .15s,background .15s}
.up-slot:hover{border-color:var(--accent);background:#fff8ec}
.up-slot .up-ph{text-align:center;color:var(--muted);font-size:.78rem;padding:6px;user-select:none}
.up-slot .up-plus{font-size:1.4rem;line-height:1;color:var(--accent);display:block;margin-bottom:3px}
.up-slot img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.up-slot .up-idx{position:absolute;top:6px;left:6px;z-index:2;background:rgba(12,34,51,.78);color:#fff;font-size:.68rem;padding:1px 7px;border-radius:20px}
.up-slot .up-del{position:absolute;top:6px;right:6px;z-index:3;border:0;background:rgba(12,34,51,.78);color:#fff;width:20px;height:20px;border-radius:50%;font-size:12px;line-height:1;cursor:pointer;display:none}
.up-slot.filled .up-del{display:block}
.up-slot input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer}
.up-vid{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.up-vidpick{display:inline-flex;align-items:center;gap:8px;border:1.5px dashed #c7d0d8;border-radius:10px;padding:10px 16px;cursor:pointer;color:var(--accent-deep);font-weight:700;font-size:.9rem;background:#fbfcfd;position:relative;overflow:hidden}
.up-vidpick:hover{border-color:var(--accent);background:#fff8ec}
.up-vidpick input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer}
.up-vidname{font-size:.84rem;color:var(--muted)}
.up-vidpreview{display:none;width:100%;max-width:520px;margin-top:14px;border-radius:12px;background:#000;box-shadow:var(--shadow);aspect-ratio:16/9;object-fit:contain}
.up-vidpreview.show{display:block}
.up-msg{font-size:.86rem;color:var(--navy);margin:10px 0 0}
.up-msg.err{color:#c62828}
#upOutput{width:100%;min-height:170px;margin-top:12px;font-family:ui-monospace,Consolas,monospace;font-size:.72rem;line-height:1.5;color:#cfe8de;background:#0c2233;border:1px solid var(--line);border-radius:10px;padding:12px;resize:vertical}
.up-actions{display:flex;gap:10px;margin-top:10px;align-items:center;flex-wrap:wrap}
@media (max-width:720px){.up-imgs{grid-template-columns:repeat(3,1fr)}.up-grid2{grid-template-columns:1fr}}
.up-auto{display:flex;gap:12px;align-items:center;margin-top:14px;flex-wrap:wrap}
.field .up-money{display:flex;align-items:center;border:1px solid var(--line);border-radius:10px;background:var(--bg);overflow:hidden}
.field .up-money span{padding-left:12px;font-weight:800;color:var(--accent-deep);font-size:1.05rem}
.field .up-money input{border:0;background:transparent;padding:.72em .9em .72em .5em;width:100%;border-radius:0}
.field .up-money input:focus{outline:none}
.field .up-money:focus-within{outline:2px solid var(--accent);outline-offset:1px}

/* ===== 动态产品（一键上架的新产品） ===== */
.prod-block.new-prod{align-items:start}
.prod-block.new-prod .prod-video{grid-column:1/-1;width:100%;max-width:760px;justify-self:center;margin-top:6px}
.prod-thumb:hover{border-color:var(--sky)}

/* 新品发布区 */
.newprod-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.newprod-sub{color:var(--muted);font-size:.92rem;margin-top:6px}
.newprod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.newprod-card{display:block;width:100%;padding:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface);cursor:pointer;text-align:left;font:inherit;color:inherit;text-decoration:none;transition:transform .25s ease,box-shadow .25s ease}
.newprod-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.np-img{display:block;aspect-ratio:4/3;overflow:hidden;background:#eef1f5}
.np-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.newprod-card:hover .np-img img{transform:scale(1.06)}
.np-body{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px 16px}
.np-body strong{font-size:.98rem;color:var(--ink);line-height:1.35;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.np-size{font-size:.85rem;color:var(--muted);font-weight:600;white-space:nowrap;padding:2px 8px;background:#f1f4f8;border-radius:6px}
.np-price{font-weight:800;color:var(--accent-deep);font-size:.95rem;white-space:nowrap}
.back-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--navy);margin-bottom:22px;font-size:.95rem}
.back-link:hover{color:var(--accent-deep)}
.single-empty{color:var(--muted);font-size:1rem}
@media (max-width:980px){.newprod-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.newprod-grid{grid-template-columns:1fr;gap:16px}}
.prod-main{position:relative;width:100%;aspect-ratio:4/3;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.prod-main img{width:100%;height:100%;object-fit:cover;aspect-ratio:auto;border-radius:0;box-shadow:none}
.prod-thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.prod-thumb{width:72px;height:54px;padding:0;border:2px solid transparent;border-radius:8px;overflow:hidden;cursor:pointer;background:none;flex:none;transition:border-color .15s}
.prod-thumb.active{border-color:var(--accent)}
.prod-thumb img{width:100%;height:100%;object-fit:cover;aspect-ratio:auto;border-radius:0;box-shadow:none;transform:none!important}
.prod-new{display:inline-block;background:var(--accent);color:#1a1200;font-size:.98rem;font-weight:900;letter-spacing:.14em;padding:6px 18px;border-radius:22px;margin-bottom:12px;box-shadow:0 8px 20px rgba(245,158,11,.42);text-transform:uppercase}
.prod-meta{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 18px}
.prod-price,.prod-size{background:#fff8ec;border:1px solid #f3d9a6;border-radius:10px;padding:8px 14px;font-size:.92rem;color:var(--navy);font-weight:700;line-height:1.3}
.prod-price{color:var(--accent-deep);font-size:1.05rem}
.prod-price em,.prod-size em{display:block;font-style:normal;font-size:.7rem;color:var(--muted);font-weight:600;margin-bottom:2px}
.prod-video{margin-top:12px}
.prod-video video{width:100%;border-radius:var(--radius);box-shadow:var(--shadow);background:#000;aspect-ratio:16/9;object-fit:cover;display:block}

/* ===== 常驻 WhatsApp 按钮 ===== */
.wa-float{
  position:fixed;right:18px;bottom:18px;z-index:60;
  width:56px;height:56px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#25D366;color:#fff;
  box-shadow:0 10px 26px rgba(37,211,102,.45);
  transition:transform .2s ease,box-shadow .2s ease;
}
.wa-float:hover{transform:translateY(-3px) scale(1.04);box-shadow:0 14px 32px rgba(37,211,102,.55);color:#fff}
@media (max-width:640px){.wa-float{width:50px;height:50px;right:14px;bottom:14px}}

/* ===== 独立产品页 /products/<slug>/ ===== */
.pdp-hero{padding:52px 0 28px;background:linear-gradient(180deg,#0C2233,#123A56)}
.pdp-hero .crumb{color:rgba(255,255,255,.62);font-size:.82rem;margin-bottom:14px}
.pdp-hero .crumb a{color:rgba(255,255,255,.86)}
.pdp-hero h1{color:#fff;font-size:clamp(1.6rem,3.6vw,2.5rem);line-height:1.18;margin:0 0 10px}
.pdp-hero .lede{color:rgba(255,255,255,.82);max-width:780px;margin:0}
.pdp-wrap{padding:34px 0 64px}
.pdp-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:34px;align-items:start}
.pdp-gallery .main{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#eef1f5;aspect-ratio:4/3}
.pdp-gallery .main img{width:100%;height:100%;object-fit:cover}
.pdp-gallery .thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.pdp-gallery .thumbs button{width:84px;height:62px;padding:0;border:2px solid transparent;border-radius:8px;overflow:hidden;cursor:pointer;background:none}
.pdp-gallery .thumbs button.active{border-color:var(--accent)}
.pdp-gallery .thumbs img{width:100%;height:100%;object-fit:cover}
.pdp-side{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.pdp-price{font-size:1.5rem;font-weight:900;color:var(--accent-deep);margin:0 0 6px}
.pdp-price small{display:block;font-size:.72rem;font-weight:600;color:var(--muted);letter-spacing:.02em;margin-bottom:2px;text-transform:uppercase}
.pdp-specs{margin:16px 0 20px;border-top:1px solid var(--line)}
.pdp-specs div{display:flex;justify-content:space-between;gap:16px;padding:9px 0;border-bottom:1px solid var(--line);font-size:.92rem}
.pdp-specs span:first-child{color:var(--muted);font-weight:600}
.pdp-specs span:last-child{font-weight:700;color:var(--ink);text-align:right}
.pdp-actions{display:grid;gap:10px}
.pdp-wa{background:#25D366;color:#fff;box-shadow:0 8px 20px rgba(37,211,102,.35)}
.pdp-wa:hover{background:#1DA851;color:#fff;transform:translateY(-1px)}
.pdp-desc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;margin-top:34px;box-shadow:var(--shadow)}
.pdp-desc h2{font-size:1.15rem;margin-bottom:12px}
.pdp-desc p{color:var(--muted);line-height:1.85;margin:0}
.pdp-video{margin-top:24px}
.pdp-video video{width:100%;max-width:880px;border-radius:var(--radius);box-shadow:var(--shadow);background:#000;aspect-ratio:16/9;object-fit:cover;display:block}
@media (max-width:860px){.pdp-grid{grid-template-columns:1fr;gap:22px}}

/* 产品页相关产品互链 */
.pdp-related{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.pdp-related a{display:inline-block;padding:9px 14px;border:1px solid var(--line);border-radius:10px;font-weight:600;color:var(--navy);background:#f8fafc;text-decoration:none;font-size:.92rem}
.pdp-related a:hover{border-color:var(--accent);color:var(--accent-deep)}

/* 加乐授权合作方说明 */
.footer-jiale{font-size:.82rem;color:rgba(255,255,255,.52);line-height:1.65;margin-top:6px}