:root{--blue:#0a67cb;--dark:#0a1f3d;--muted:#667085;--line:#dfe7f2;--bg:#f7fbff;--card:#ffffff;--radius:22px;--shadow:0 16px 40px rgba(8,27,53,.09)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Arial,"Microsoft YaHei",sans-serif;color:var(--dark);background:#fff}img{max-width:100%;display:block}a{text-decoration:none;color:inherit}button{font:inherit}
.container{width:min(1240px,92vw);margin:auto}.topbar{background:#07254c;color:#deebff;font-size:13px}.topbar-inner{display:flex;justify-content:space-between;gap:12px;padding:10px 0}.header{position:sticky;top:0;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);z-index:30}.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:24px}.logo img{height:52px}.menu{display:flex;align-items:center;gap:24px;font-weight:700}.menu a{color:#1c2d4a;position:relative}.menu a.active,.menu a:hover{color:var(--blue)}.menu a.active:after{content:'';position:absolute;left:0;right:0;bottom:-10px;height:3px;border-radius:99px;background:var(--blue)}.nav-cta{background:var(--blue);color:#fff;font-weight:800;padding:12px 18px;border-radius:999px;white-space:nowrap}
.section,.detail-hero{padding:72px 0}.detail-hero{background:linear-gradient(180deg,#f9fbff,#f2f7ff)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:28px}.section-head.compact{margin-bottom:18px}.kicker{display:inline-block;color:var(--blue);font-weight:800;text-transform:uppercase;letter-spacing:.05em;font-size:13px}.kicker-light{color:#d7e9ff}.lead{color:#516276;line-height:1.7;font-size:18px}h1,h2,h3,h4{line-height:1.1;margin:0 0 14px}h1{font-size:52px;letter-spacing:-1.6px}h2{font-size:38px;letter-spacing:-1px}h3{font-size:22px}p{line-height:1.68;color:#465567;margin:0 0 14px}.buttons{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 24px;border-radius:12px;font-weight:800;border:1.6px solid var(--blue);cursor:pointer;transition:.2s}.btn.primary{background:var(--blue);color:#fff}.btn.secondary{background:#fff;color:var(--blue)}.btn.secondary.white{background:transparent;border-color:#fff;color:#fff}.btn:hover{transform:translateY(-1px)}
.home-banner-section{padding:42px 0 26px;background:linear-gradient(180deg,#ffffff 0%,#f7fbff 100%)}.banner-slider{position:relative;border-radius:26px;overflow:hidden;background:#fff;box-shadow:var(--shadow);border:1px solid var(--line)}.slides{position:relative}.slide{display:none}.slide.active{display:block}.slide img{width:100%;height:auto;background:#fff}.slider-btn{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border:none;border-radius:50%;background:rgba(10,31,61,.62);color:#fff;font-size:30px;display:grid;place-items:center;cursor:pointer;z-index:2}.slider-btn.prev{left:16px}.slider-btn.next{right:16px}.slider-dots{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);display:flex;gap:8px;z-index:2}.slider-dots button{width:11px;height:11px;border-radius:50%;border:none;background:rgba(255,255,255,.55);cursor:pointer;padding:0}.slider-dots button.active{background:#fff;box-shadow:0 0 0 2px rgba(10,103,203,.28)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative;z-index:2}.stats-tight{margin-top:8px}.stat{background:#fff;padding:22px;border-radius:18px;border:1px solid var(--line);box-shadow:0 8px 24px rgba(8,27,53,.05)}.stat b{font-size:24px;color:var(--blue)}
.categories{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.categories.four-up{grid-template-columns:repeat(4,1fr)}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 8px 24px rgba(8,27,53,.05);transition:.25s}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.card-img{height:240px;background:#f8fbff;display:flex;align-items:center;justify-content:center;overflow:hidden}.card-img img{width:100%;height:100%;object-fit:cover}.card-body{padding:22px}.tag{display:inline-block;padding:7px 11px;border-radius:999px;background:#e7f2ff;color:var(--blue);font-size:12px;font-weight:800;margin-bottom:10px}.simple-card .card-body{padding:24px}.alt-bg{background:#f8fbff}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.feature-card{background:#fff;padding:24px;border-radius:18px;border:1px solid var(--line);box-shadow:0 8px 24px rgba(8,27,53,.04)}.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.case-card{background:#fff;border-radius:22px;border:1px solid var(--line);overflow:hidden;box-shadow:0 8px 24px rgba(8,27,53,.05)}.case-card img{width:100%;height:250px;object-fit:cover;background:#f8fbff}.case-body{padding:22px}
.blue-band{background:linear-gradient(120deg,#072a5b,#0a67cb);color:#fff}.blue-band p,.blue-band .lead{color:#d7e7fb}.process{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.step{padding:24px;border-radius:18px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08)}.num{font-size:32px;font-weight:900;color:#9ecaff}.cta-band{background:linear-gradient(110deg,#0b61bc,#0d7ae3);color:#fff}.cta-band .lead{color:#e6f1ff}.cta-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px}
.two-col{display:grid;grid-template-columns:1.1fr .9fr;gap:28px}.detail-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:34px;align-items:center}.align-center{align-items:center}.hero-panel{background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden;box-shadow:var(--shadow)}.hero-panel img{width:100%;height:auto}.info-box{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:0 8px 24px rgba(8,27,53,.04)}.check-list,.ordered-list{padding-left:20px;margin:0}.check-list li,.ordered-list li{margin-bottom:10px;color:#455569;line-height:1.6}.product-layout{display:grid;grid-template-columns:260px 1fr;gap:28px}.filters{position:sticky;top:100px;align-self:start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:0 8px 24px rgba(8,27,53,.05)}.filter button{display:block;width:100%;text-align:left;background:#f7fbff;border:1px solid var(--line);border-radius:10px;padding:11px 12px;margin:8px 0;font-weight:700;color:#324357;cursor:pointer}.filter button.active,.filter button:hover{background:var(--blue);color:#fff}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.product-card .card-img{height:210px}.specs{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.specs span{font-size:12px;padding:6px 9px;border-radius:999px;border:1px solid var(--line);color:#42546b}.contact-box{background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px;box-shadow:var(--shadow)}input,textarea,select{width:100%;padding:13px 14px;border-radius:10px;border:1px solid #cfd8e5;font:inherit;margin-bottom:12px}textarea{height:120px;resize:vertical}.contact-list{display:grid;gap:10px;margin-top:18px}.contact-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;display:grid;gap:4px;box-shadow:0 8px 24px rgba(8,27,53,.03)}.contact-item strong{color:#16335d}
.faq-wrap{display:grid;gap:14px}.faq-item{border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden;box-shadow:0 6px 20px rgba(8,27,53,.04)}.faq-question{width:100%;text-align:left;background:#fff;border:none;padding:20px 22px;font-weight:800;color:#132d52;cursor:pointer;position:relative}.faq-question:after{content:'+';position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:24px;color:var(--blue)}.faq-item.open .faq-question:after{content:'−'}.faq-answer{display:none;padding:0 22px 22px}.faq-item.open .faq-answer{display:block}
.footer{background:#071c38;color:#c6d7ea;padding:48px 0 22px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}.footer h4{color:#fff;margin-bottom:12px}.footer a,.footer span{display:block;margin:8px 0;color:#c6d7ea}.footer-logo{height:48px;background:#fff;border-radius:8px;padding:4px}.footer-small{font-size:13px;color:#9fb4cd}.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:26px;padding-top:16px;font-size:13px;color:#8aa5c6}
@media (max-width:1024px){.feature-grid,.case-grid,.grid,.categories.four-up{grid-template-columns:repeat(2,1fr)}.hero-panel img{width:100%}.nav{gap:12px}.menu{gap:18px;font-size:14px}.product-layout,.detail-grid,.two-col,.cta-wrap{grid-template-columns:1fr;display:grid}.filters{position:relative;top:auto}}
@media (max-width:768px){h1{font-size:38px}h2{font-size:30px}.stats,.categories,.feature-grid,.case-grid,.process,.grid,.footer-grid{grid-template-columns:1fr}.topbar-inner{display:block}.menu{display:none}.nav{padding:12px 0}.logo img{height:46px}.slider-btn{width:38px;height:38px}.section,.detail-hero{padding:56px 0}.card-img{height:220px}}

.spec-table{width:100%;border-collapse:collapse;background:#fff;border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:0 8px 24px rgba(8,27,53,.04)}.spec-table td{padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:top}.spec-table td:first-child{font-weight:800;color:#14345d;background:#f8fbff;width:34%}.whatsapp-float{position:fixed;right:22px;bottom:22px;background:#18b957;color:#fff;font-weight:900;padding:14px 18px;border-radius:999px;box-shadow:0 12px 30px rgba(20,122,65,.28);z-index:50}.whatsapp-float:hover{transform:translateY(-2px)}

/* Product catalog additions */
.product-card .card-img img,.product-gallery .card-img img{object-fit:contain;padding:10px;background:#fff;}
.product-gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.product-gallery .card-img{height:220px;}
.page-note{background:#fff7e6;border:1px solid #ffdca8;border-radius:14px;padding:16px;color:#664600;margin:18px 0;}
@media(max-width:1024px){.product-gallery{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.product-gallery{grid-template-columns:1fr}}

.company-facts{display:grid;gap:12px}.fact-item{border-bottom:1px solid var(--line);padding:0 0 12px}.fact-item:last-child{border-bottom:none}.fact-item b{display:block;color:var(--blue);font-size:24px;margin-bottom:4px}.fact-item span{color:#526274;line-height:1.5}


/* v7 refinement */
.home-banner-clean{padding:26px 0 18px;background:linear-gradient(180deg,#fff,#f6faff)}
.home-banner-clean .banner-slider{border-radius:18px}
.intro-strip{padding:36px 0 48px}
.intro-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:30px;align-items:center}
.intro-grid h1{font-size:42px;margin-top:10px}
.intro-actions{display:flex;gap:14px;justify-content:flex-end;flex-wrap:wrap}
.catalog-overview{padding-bottom:28px;background:#fff}
.product-hero .hero-panel{border-radius:22px}
.capacity-grid{margin-top:0}
.whatsapp-float{box-shadow:0 12px 28px rgba(0,104,201,.28)}
@media(max-width:900px){.intro-grid{grid-template-columns:1fr}.intro-actions{justify-content:flex-start}.intro-grid h1{font-size:34px}}