:root{--n:#071723;--n2:#0d2638;--g:#99cc33;--c:#28d5ff;--t:#102231;--m:#60707d;--b:rgba(16,34,49,.12);--bg:#f3f7f8}*{box-sizing:border-box}body.redesign-page,body.home-page{background:var(--bg);color:var(--t)}body.redesign-page .navbar,body.home-page .navbar{background:rgba(255,255,255,.93);backdrop-filter:blur(14px);box-shadow:0 10px 30px rgba(0,0,0,.08);box-sizing:border-box}body.redesign-page .nav-menu a,body.home-page .nav-menu a{font-size:18px;padding:14px 16px}.rd-container{width:min(1180px,calc(100% - 48px));margin:0 auto}.rd-eyebrow{color:var(--g);letter-spacing:.16em;text-transform:uppercase;font-size:13px;font-weight:800;margin:0 0 12px}.rd-section{padding:86px 0;position:relative}.rd-section-soft{background:#eef4f5}.rd-section-dark{background:linear-gradient(135deg,var(--n),var(--n2));color:#fff}.rd-section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}.rd-section-head h2{font-size:clamp(30px,4vw,48px);line-height:1.12;margin:0}.rd-section-head p{max-width:560px;color:var(--m);font-size:16px;line-height:1.75;margin:0}.rd-section-dark .rd-section-head p{color:rgba(255,255,255,.72)}.rd-hero{min-height:72vh;padding:150px 0 78px;color:#fff;background:var(--n);position:relative;overflow:hidden;display:flex;align-items:center}.rd-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.04);opacity:.56}.rd-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,23,35,.95),rgba(7,23,35,.63) 48%,rgba(7,23,35,.18))}.rd-hero:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:46px 46px;mask-image:linear-gradient(90deg,#000,transparent 70%)}.rd-hero-inner{position:relative;z-index:1;max-width:780px}.rd-hero h1{font-size:clamp(42px,7vw,82px);line-height:1.02;margin:0 0 24px;letter-spacing:0}.rd-hero p{font-size:18px;line-height:1.8;color:rgba(255,255,255,.82);margin:0;max-width:700px}.rd-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}.rd-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border-radius:999px;text-decoration:none;font-weight:800;transition:.25s}.rd-btn-primary{background:var(--g);color:#132110}.rd-btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(153,204,51,.28)}.rd-btn-ghost{color:#fff;border:1px solid rgba(255,255,255,.32)}.rd-btn-ghost:hover{background:rgba(255,255,255,.1)}.rd-stats{position:relative;z-index:2;margin-top:-52px;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.rd-stat{background:rgba(255,255,255,.95);border:1px solid var(--b);border-radius:22px;padding:24px;box-shadow:0 18px 50px rgba(17,31,42,.12)}.rd-stat strong{display:block;font-size:34px;line-height:1;color:var(--n);margin-bottom:10px}.rd-stat span{color:var(--m);font-size:14px}.rd-grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.rd-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.rd-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}.rd-card{background:#fff;border:1px solid var(--b);border-radius:26px;overflow:hidden;box-shadow:0 18px 48px rgba(13,38,56,.08);transition:.28s;position:relative}.rd-card:hover{transform:translateY(-6px);box-shadow:0 24px 60px rgba(13,38,56,.14)}.rd-card-img{height:220px;background:#e7eef1;display:flex;align-items:center;justify-content:center;overflow:hidden}.rd-card-img img{width:100%;height:100%;object-fit:cover}.rd-card-img.contain img{object-fit:contain;padding:20px}.rd-card-body{padding:24px}.rd-card-body h3{margin:0 0 10px;font-size:23px}.rd-card-body p{margin:0;line-height:1.7;color:var(--m)}.rd-card-link{display:inline-flex;margin-top:20px;color:var(--g);font-weight:900;text-decoration:none}.rd-tag{display:inline-block;padding:6px 10px;border-radius:999px;background:rgba(153,204,51,.14);color:#4f7e08;font-size:12px;font-weight:900;margin-bottom:14px}.rd-tag-blue{background:rgba(40,213,255,.13);color:#087d9a}.rd-tag-orange{background:rgba(255,187,51,.18);color:#9b6500}.rd-feature{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}.rd-feature-img{min-height:420px;border-radius:30px;overflow:hidden;background:#dde7ea;box-shadow:0 24px 68px rgba(0,0,0,.16)}.rd-feature-img img{width:100%;height:100%;object-fit:cover;display:block}.rd-feature-copy h2{font-size:clamp(34px,4.2vw,54px);line-height:1.12;margin:0 0 18px}.rd-feature-copy p{line-height:1.85;color:var(--m);font-size:16px}.rd-section-dark .rd-feature-copy p{color:rgba(255,255,255,.76)}.rd-list{display:grid;gap:14px;margin-top:26px}.rd-list-item{padding:16px 18px;border-radius:18px;background:rgba(153,204,51,.1);border:1px solid rgba(153,204,51,.22);font-weight:800}.rd-section-dark .rd-list-item{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16)}.rd-timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.rd-stage{border-radius:26px;padding:26px;border:1px solid var(--b);background:#fff}.rd-stage h3{margin:0 0 14px;font-size:24px}.rd-stage ul{padding-left:18px;margin:0;color:var(--m);line-height:1.8}.rd-stage[data-stage=mass]{border-top:5px solid var(--g)}.rd-stage[data-stage=pilot]{border-top:5px solid var(--c)}.rd-stage[data-stage=verify]{border-top:5px solid #ffb12e}.rd-table{width:100%;border-collapse:collapse;background:#fff;border-radius:22px;overflow:hidden;box-shadow:0 18px 48px rgba(13,38,56,.08)}.rd-table th,.rd-table td{padding:15px 18px;text-align:left;border-bottom:1px solid #e6eef1}.rd-table th{background:#102231;color:#fff}.asset-needed{display:flex;align-items:center;justify-content:center;min-height:220px;padding:22px;border-radius:24px;background:#ffe94d;color:#c40000;border:3px dashed #c40000;font-weight:900;line-height:1.55;text-align:center;white-space:pre-line}.rd-card .asset-needed{border-radius:0;min-height:220px}.rd-placeholder-small{min-height:96px}.rd-logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}.rd-logo-wall-wide{grid-template-columns:repeat(4,1fr)}.rd-logo{min-height:86px;background:#fff;border-radius:18px;border:1px solid var(--b);display:flex;align-items:center;justify-content:center;padding:18px;text-decoration:none}.rd-logo img{max-width:100%;max-height:54px;object-fit:contain}.rd-cta{background:linear-gradient(135deg,var(--n),#12364d);color:#fff;padding:64px;border-radius:34px;display:flex;align-items:center;justify-content:space-between;gap:26px}.rd-cta h2{margin:0 0 10px;font-size:34px}.rd-cta p{margin:0;color:rgba(255,255,255,.72)}.reveal-on-scroll{opacity:0;transform:translateY(30px);transition:.7s}.reveal-on-scroll.is-visible{opacity:1;transform:none}.navbar .logo{text-decoration:none}.lang-switch{position:relative;display:flex;align-items:center;margin-left:18px}.lang-toggle{display:flex;align-items:center;gap:8px;min-height:42px;padding:7px 13px;border:1px solid rgba(16,34,49,.14);border-radius:999px;background:#fff;color:#102231;font-weight:800;cursor:pointer}.lang-toggle span{font-size:12px;color:#60707d}.lang-toggle strong{font-size:13px}.lang-options{position:absolute;right:0;top:calc(100% + 10px);display:none;min-width:150px;padding:8px;border-radius:16px;background:#fff;border:1px solid rgba(16,34,49,.14);box-shadow:0 18px 42px rgba(13,38,56,.16);z-index:50}.lang-switch.open .lang-options{display:grid;gap:4px}.lang-options button{width:100%;min-height:38px;border:0;border-radius:10px;background:transparent;color:#102231;font-weight:800;text-align:left;padding:0 12px;cursor:pointer}.lang-options button:hover,.lang-options button.active{background:rgba(153,204,51,.16);color:#4f7e08}@media(max-width:980px){.rd-section-head,.rd-feature,.rd-cta{display:block}.rd-grid-4,.rd-grid-3,.rd-grid-2,.rd-stats,.rd-timeline,.rd-logo-wall,.rd-logo-wall-wide{grid-template-columns:repeat(2,1fr)}.rd-feature-img{margin-bottom:26px}.rd-section{padding:64px 0}.rd-cta{padding:36px}}@media(max-width:768px){.lang-switch{margin-left:auto;margin-right:52px}.lang-toggle{min-height:38px;padding:6px 10px}.lang-toggle span{display:none!important}.lang-options{right:0}}@media(max-width:640px){.rd-container{width:min(100% - 28px,1180px)}.rd-hero{padding-top:120px;min-height:78vh}.rd-grid-4,.rd-grid-3,.rd-grid-2,.rd-stats,.rd-timeline,.rd-logo-wall,.rd-logo-wall-wide{grid-template-columns:1fr}.rd-section-head h2{font-size:30px}.rd-card-img{height:190px}}
/* 小型便携钠电池：单图展示，缩小图片框 */
.rd-card-img.portable-single-image {
  height: 360px !important;
  padding: 24px;
  box-sizing: border-box;
  background: #f5f7fa;
  display: flex !important;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.rd-card-img.portable-single-image img {
  max-width: 90%;
  max-height: 90%;
  width: auto !important;
  height: auto !important;
  object-fit: contain !important;
  display: block;
}