*{box-sizing:border-box}body{margin:0;font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:#1f2937;line-height:1.6}
.wrap{max-width:1180px;margin:auto;padding:0 20px}a{color:inherit;text-decoration:none}
.nav{position:sticky;top:0;background:#0f2742;color:#fff;z-index:9}.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{font-weight:700;font-size:20px}.logo small{display:block;font-size:10px;opacity:.6;font-weight:400;margin-top:-6px}
nav a{margin-left:18px;font-size:15px;opacity:.85}nav a:hover{opacity:1;color:#5eb3ff}.burger{display:none;background:none;border:0;color:#fff;font-size:24px}
.hero{background:linear-gradient(135deg,#0f2742,#1d4e89);color:#fff;padding:90px 0}.hero h1{font-size:40px;margin:0 0 16px}.hero p{max-width:640px;opacity:.9}
.btn{display:inline-block;background:#c2410c;color:#fff;padding:10px 22px;border-radius:6px;border:0;cursor:pointer;font-size:15px}.btn:hover{background:#9a3412}.btn.ghost{background:transparent;border:1px solid #fff}
.stats{display:flex;gap:40px;list-style:none;padding:0;margin-top:40px}.stats b{display:block;font-size:26px;color:#5eb3ff}
.cat{padding:64px 0}.alt{background:#f4f7fb}h2{font-size:28px;margin:0 0 6px;border-left:5px solid #c2410c;padding-left:12px}.sub{color:#4b5563;margin:0 0 28px}
 .grid{display:grid;align-items:stretch;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}
.card{background:#fff;border:1px solid #e5e7eb;border-radius:10px;overflow:hidden;display:flex;flex-direction:column}.card .pic{height:190px!important;min-height:190px;max-height:190px;overflow:hidden;box-sizing:border-box;display:flex;align-items:center;justify-content:center;padding:10px 14px;background:#f8fafc;border-bottom:1px solid #e5e7eb;flex-shrink:0}.card .pic img{width:100%;height:100%;object-fit:contain;object-position:center;display:block}.card:hover{box-shadow:0 8px 24px rgba(15,39,66,.12)}
.card .b{padding:16px;flex:1;display:flex;flex-direction:column}.brand{font-size:12px;color:#1d4e89;font-weight:600}
.card h3{margin:2px 0 6px;font-size:18px}.card p{font-size:14px;color:#4b5563;margin:0 0 8px}.card ul{padding-left:18px;margin:0 0 12px;font-size:13px;color:#374151;flex:1}
.foot{display:flex;justify-content:space-between;align-items:center}.price{color:#c2410c;font-weight:700}.cta{font-size:13px;padding:7px 12px}
.gal{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.ph{aspect-ratio:3/2;border:2px dashed #94a3b8;border-radius:10px;display:flex;align-items:center;justify-content:center;text-align:center;color:#64748b;background:#f8fafc}
.about{max-width:860px}.pts{display:grid;grid-template-columns:1fr 1fr;gap:8px;list-style:none;padding:0}.pts li:before{content:"✔ ";color:#e8541c}
.contact{display:grid;grid-template-columns:1fr 1.4fr;gap:40px}.note{color:#c2410c;font-weight:600}
form{display:grid;grid-template-columns:1fr 1fr;gap:14px}label{display:flex;flex-direction:column;font-size:14px;gap:4px}.full{grid-column:1/-1}
input,select,textarea{padding:9px;border:1px solid #cbd5e1;border-radius:6px;font:inherit}.invalid{border-color:#dc2626}.ok{color:#15803d;font-weight:600}
footer{background:#0f2742;color:#cbd5e1;font-size:13px;padding:24px 0;text-align:center}
@media(max-width:800px){.burger{display:block}nav{display:none;position:absolute;top:60px;left:0;right:0;background:#0f2742;padding:10px 20px}body.open nav{display:flex;flex-direction:column}nav a{margin:8px 0}
.hero h1{font-size:28px}.contact,form,.pts{grid-template-columns:1fr}.stats{gap:20px}}

.tel{color:#1d4e89;text-decoration:underline;text-underline-offset:2px}.tel:hover{color:#c2410c}
.wx{margin:20px 0 0;text-align:center;max-width:200px}.wx img{display:block;width:180px;height:180px;object-fit:contain;border:1px solid #e5e7eb;border-radius:8px;background:#fff;margin:0 auto}
.wx figcaption{margin-top:8px;font-size:14px;color:#374151;font-weight:600}
footer .tel{color:#5eb3ff}.foot-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;text-align:left}
.foot-wx{margin:0;max-width:110px}.foot-wx img{width:96px;height:96px}
@media(max-width:800px){.foot-inner{flex-direction:column;text-align:center}.foot-wx{margin:0 auto}}

.brand-block{margin:0 0 36px}.brand-block:last-child{margin-bottom:0}
.brand-title{font-size:18px;margin:0 0 14px;padding:8px 12px;background:#0f2742;color:#fff;border-radius:6px;display:inline-block;font-weight:600}
.brand-grid,.grid.brand-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;align-items:stretch}
@media(max-width:1100px){.brand-grid,.grid.brand-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.brand-grid,.grid.brand-grid{grid-template-columns:1fr}.brand-title{font-size:16px}}



/* 现场交付与机房实拍 */
.photo-gal{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.gal-item{margin:0;background:#fff;border:1px solid #e5e7eb;border-radius:10px;overflow:hidden;box-shadow:0 1px 3px rgba(15,39,66,.06)}
.gal-item img{width:100%;aspect-ratio:3/2;object-fit:cover;display:block;background:#0f2742}
.gal-item figcaption{padding:10px 12px 12px;font-size:14px;line-height:1.5}
.gal-item figcaption strong{display:block;color:#0f2742;font-weight:600}
.gal-item figcaption span{display:block;color:#4b5563;font-size:12px;margin-top:2px}
.gal-item figcaption a{color:#4b5563}
.gal-credit{margin-top:14px;font-size:12px;color:#4b5563}
.gal-credit a{color:#4b5563}
@media (max-width:900px){.photo-gal{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.photo-gal{grid-template-columns:1fr}}
/* 深信服 6 款：桌面端 3×2 */
@media (min-width:1101px){.brand-rows[data-cat="sec"] .brand-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}

/* v2026-10-15 SEO release */
.card .pic picture{display:block;width:100%;height:100%}
.gal-item picture{display:block}
.area{font-size:14px;color:#4b5563}
.cta-row{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 6px}
.btn.big{font-size:16px;padding:12px 18px}
.btn.alt-btn{background:#1d4e89}.btn.alt-btn:hover{background:#0f2742}
.btn.wx-btn{background:#15803d}.btn.wx-btn:hover{background:#166534}
.big-wx{max-width:240px;margin:18px 0 0}.big-wx img{width:200px;height:200px}
.big-wx:target img{outline:3px solid #15803d;outline-offset:4px}
.wx picture{display:block}
.form-title{grid-column:1/-1;margin:0;font-size:20px;color:#0f2742}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
.formmsg{margin:0;padding:10px 12px;border-radius:6px;font-weight:600}
.formmsg.ok{background:#ecfdf5;color:#166534}.formmsg.err{background:#fef2f2;color:#991b1b}
.privacy{margin:0;font-size:12px;color:#4b5563}
button[disabled]{opacity:.7;cursor:wait}
.err404{text-align:center;padding:120px 0}
footer .wx figcaption{color:#cbd5e1}