/* products.html - 页面专用样式 */

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,"PingFang SC","Helvetica Neue","Microsoft YaHei",sans-serif;color:var(--text-body);line-height:1.7;background:#fff;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:color .25s}
ul,ol{list-style:none}
h1,h2,h3,h4{line-height:1.3;font-weight:700}
:root{--c-primary:#0d9488;--c-primary-dark:#0f766e;--c-primary-light:#5eead4;--c-primary-pale:#f0fdfa;--c-accent:#2563eb;--c-accent-light:#60a5fa;--c-accent-pale:#eff6ff;--c-dark:#0f172a;--c-heading:#1e293b;--c-body:#475569;--c-muted:#94a3b8;--c-border:#e2e8f0;--c-bg:#f8fafc;--c-white:#fff;--shadow:0 4px 6px -1px rgba(0,0,0,.06),0 2px 4px -2px rgba(0,0,0,.04);--shadow-lg:0 10px 25px -3px rgba(0,0,0,.08);--shadow-xl:0 20px 40px -8px rgba(0,0,0,.1);--radius:12px;--radius-lg:20px;--radius-full:9999px;--max-w:1200px;--header-h:72px;--transition:cubic-bezier(.22,1,.36,1)}
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
/* Header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(0,0,0,.04);transition:all .3s}
.site-header.scrolled{box-shadow:var(--shadow)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);max-width:var(--max-w);margin:0 auto;padding:0 24px}
.logo{display:flex;align-items:center;gap:10px}
.logo-icon{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--c-primary),var(--c-accent));display:flex;align-items:center;justify-content:center;flex-shrink:0}
.logo-text{font-size:1.05rem;font-weight:700;color:var(--c-dark)}
.logo-sub{font-size:.7rem;color:var(--c-muted);letter-spacing:.3px}
.nav{display:flex;align-items:center;gap:2px}
.nav a{padding:8px 14px;font-size:.88rem;color:var(--c-body);font-weight:500;border-radius:8px;transition:all .25s}
.nav a:hover,.nav a.active{color:var(--c-primary);background:var(--c-primary-pale)}
.nav-phone{margin-left:16px;padding:8px 20px;background:linear-gradient(135deg,var(--c-primary),var(--c-accent));color:#fff;border-radius:var(--radius-full);font-size:.85rem;font-weight:600;display:flex;align-items:center;gap:6px;box-shadow:0 2px 8px rgba(13,148,136,.2);transition:all .3s}
.nav-phone:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(13,148,136,.3)}
.mobile-toggle{display:none;background:none;border:none;padding:8px;width:44px;height:44px}
.mobile-toggle span{display:block;width:22px;height:2px;background:var(--c-dark);margin:5px auto;transition:.3s;border-radius:2px}
.mobile-menu{display:none;position:fixed;top:var(--header-h);left:0;right:0;background:#fff;box-shadow:var(--shadow-lg);padding:16px 24px;z-index:999}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:14px 0;font-size:1rem;color:var(--c-body);border-bottom:1px solid var(--c-border)}
/* Page Hero */
.page-hero{background:linear-gradient(135deg,#0f4c75 0%,#0d9488 50%,#2563eb 100%);padding:120px 0 60px;text-align:center;position:relative;overflow:hidden}
.page-hero::before{content:'';position:absolute;top:-30%;right:-10%;width:400px;height:400px;border-radius:50%;background:rgba(94,234,212,.1)}
.page-hero h1{font-size:2.2rem;font-weight:800;color:#fff;margin-bottom:12px;position:relative;z-index:1}
.page-hero p{font-size:1rem;color:rgba(255,255,255,.75);position:relative;z-index:1;max-width:500px;margin:0 auto}
.breadcrumb{padding:16px 0;font-size:.85rem;color:var(--c-muted)}
.breadcrumb a{color:var(--c-primary)}
.breadcrumb a:hover{text-decoration:underline}
/* Product Grid */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prod-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--c-border);transition:all .4s var(--transition)}
.prod-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-xl);border-color:transparent}
.prod-img{aspect-ratio:4/3;background:linear-gradient(135deg,var(--c-bg),#e2e8f0);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.prod-img img{width:80%;height:80%;object-fit:contain;transition:transform .5s var(--transition)}
.prod-card:hover .prod-img img{transform:scale(1.08)}
.prod-cat{position:absolute;top:12px;left:12px;padding:4px 12px;background:rgba(13,148,136,.9);color:#fff;border-radius:var(--radius-full);font-size:.72rem;font-weight:600}
.prod-info{padding:24px}
.prod-info h3{font-size:1.1rem;font-weight:700;color:var(--c-heading);margin-bottom:10px}
.prod-specs{font-size:.82rem;color:var(--c-muted);line-height:1.9;margin-bottom:14px}
.prod-specs strong{color:var(--c-primary)}
.prod-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:.88rem;transition:gap .3s}
.prod-link:hover{gap:10px;color:var(--c-primary-dark)}
/* Category Filter */
.cat-filter{display:flex;justify-content:center;gap:8px;margin-bottom:36px;flex-wrap:wrap}
.cat-btn{padding:10px 24px;border:2px solid var(--c-border);border-radius:var(--radius-full);font-size:.88rem;font-weight:600;background:#fff;color:var(--c-body);transition:all .3s;cursor:pointer}
.cat-btn.active,.cat-btn:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-pale)}
/* Section Header */
.sec-header{text-align:center;margin-bottom:48px}
.sec-tag{display:inline-block;padding:6px 16px;background:var(--c-primary-pale);color:var(--c-primary);border-radius:var(--radius-full);font-size:.82rem;font-weight:600;margin-bottom:12px}
.sec-header h2{font-size:1.8rem;font-weight:800;color:var(--c-heading);margin-bottom:10px}
.sec-header p{font-size:.95rem;color:var(--c-muted);max-width:500px;margin:0 auto}
/* CTA */
.cta-banner{background:linear-gradient(135deg,var(--c-primary),var(--c-accent));padding:56px 0;text-align:center;position:relative;overflow:hidden}
.cta-banner h2{font-size:1.8rem;font-weight:800;color:#fff;margin-bottom:10px;position:relative;z-index:1}
.cta-banner p{font-size:.95rem;color:rgba(255,255,255,.8);margin-bottom:24px;position:relative;z-index:1}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:var(--radius-full);font-size:.95rem;font-weight:600;border:none;transition:all .35s var(--transition);cursor:pointer}
.btn-white{background:#fff;color:var(--c-primary-dark);box-shadow:0 4px 14px rgba(0,0,0,.1)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.15)}
/* Footer */
.site-footer{background:#0f172a;color:rgba(255,255,255,.55);padding:48px 0 20px}
.footer-inner{max-width:var(--max-w);margin:0 auto;padding:0 24px}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;margin-bottom:32px}
.footer-brand h3{color:#fff;font-size:1rem;margin-bottom:10px}
.footer-brand p{font-size:.84rem;line-height:1.7}
.footer-col h4{color:#fff;font-size:.9rem;margin-bottom:12px}
.footer-col a{display:block;font-size:.84rem;margin-bottom:7px}
.footer-col a:hover{color:var(--c-primary-light)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:16px;text-align:center;font-size:.78rem}
/* Float */
.float-cta{position:fixed;bottom:24px;right:24px;z-index:999;display:flex;flex-direction:column;gap:10px}
.float-btn{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);border:none;transition:transform .3s var(--transition)}
.float-btn:hover{transform:scale(1.1)}
.float-phone{background:linear-gradient(135deg,var(--c-primary),var(--c-accent));color:#fff;position:relative;border-radius:var(--radius-full);overflow:hidden;padding:0}
.float-phone-num{position:absolute;right:52px;white-space:nowrap;background:linear-gradient(135deg,var(--c-primary),var(--c-accent));color:#fff;padding:0 16px 0 12px;height:52px;line-height:52px;border-radius:var(--radius-full) 0 0 var(--radius-full);font-size:.88rem;font-weight:700;transform:translateX(20px);opacity:0;transition:all .4s var(--transition);pointer-events:none}
.float-phone:hover .float-phone-num{transform:translateX(0);opacity:1}
.float-phone:hover{transform:none}
.float-phone-icon{width:52px;height:52px;display:flex;align-items:center;justify-content:center}
.float-top{background:#fff;color:var(--c-dark);opacity:0;pointer-events:none;transition:opacity .3s}
.float-top.show{opacity:1;pointer-events:auto}
/* Animations */
@media(prefers-reduced-motion:no-preference){
.ani{opacity:0;transform:translateY(28px);transition:opacity .7s var(--transition),transform .7s var(--transition)}
.ani.show{opacity:1;transform:translateY(0)}
[data-delay="1"]{transition-delay:.08s!important}[data-delay="2"]{transition-delay:.16s!important}[data-delay="3"]{transition-delay:.24s!important}[data-delay="4"]{transition-delay:.32s!important}[data-delay="5"]{transition-delay:.4s!important}[data-delay="6"]{transition-delay:.48s!important}
}
@keyframes pulse-glow{0%,100%{box-shadow:0 0 0 0 rgba(13,148,136,.3)}50%{box-shadow:0 0 0 12px rgba(13,148,136,0)}}
/* Responsive */
@media(max-width:1024px){.prod-grid{grid-template-columns:repeat(2,1fr)}.footer-top{grid-template-columns:1fr 1fr}.nav-phone{display:none}}
@media(max-width:768px){.nav{display:none}.mobile-toggle{display:block}.prod-grid{grid-template-columns:1fr}.footer-top{grid-template-columns:1fr}.page-hero h1{font-size:1.6rem}.page-hero{padding:100px 0 48px}}