*{margin:0;padding:0;box-sizing:border-box}

body{font-family:-apple-system, "Microsoft YaHei", "PingFang SC", sans-serif;color:#333;line-height:1.9;background:#f5f5f5;font-size:14px;}

a{text-decoration:none;color:inherit}

.oipkv-container{max-width:1160px;margin:0 auto;padding:0 20px}

.oipkv-header{background:hsl(11, 58%, 30%);color:#fff;padding:14px 0;position:sticky;top:0;z-index:100}

.oipkv-header-inner{display:flex;justify-content:space-between;align-items:center}

.oipkv-logo{font-size:22px;font-weight:700}

.oipkv-nav{display:flex;gap:25px}

.oipkv-nav-link{color:rgba(255,255,255,.85);font-size:15px;padding:5px 0;border-bottom:2px solid transparent;transition:.3s}

.oipkv-nav-link:hover,.oipkv-nav-link.oipkv-active{color:#fff;border-bottom-color:hsl(325, 59%, 45%)}

.oipkv-banner,.oipkv-page-banner{min-height:320px;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff}

.oipkv-banner-mask{background:rgba(0,0,0,.45);padding:50px 30px;border-radius:10px}

.oipkv-banner h1,.oipkv-page-banner h1{font-size:32px;margin-bottom:12px}

.oipkv-banner p{font-size:16px;opacity:.9}

.oipkv-section{padding:65px 0}

.oipkv-bg-light{background:#fefefe}

.oipkv-section-title{text-align:center;font-size:26px;margin-bottom:40px;color:hsl(11, 53%, 18%);position:relative}

.oipkv-section-title::after{content:"";display:block;width:80px;height:3px;background:linear-gradient(90deg,hsl(325, 59%, 45%),hsl(11, 58%, 30%));margin:12px auto 0}

.oipkv-content{max-width:800px;margin:0 auto;font-size:14px;line-height:1.9;white-space:pre-wrap}

.oipkv-product-grid,.oipkv-case-grid,.oipkv-service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px}

.oipkv-product-card,.oipkv-case-card,.oipkv-service-card{background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.10);transition:.3s;border:none}

.oipkv-product-card:hover,.oipkv-case-card:hover,.oipkv-service-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,.15)}

.oipkv-product-card img,.oipkv-case-card img,.oipkv-service-card img{width:100%;height:200px;object-fit:cover}

.oipkv-product-card h3,.oipkv-case-card h3,.oipkv-service-card h3{padding:15px 18px 8px;font-size:17px}

.oipkv-news-list{max-width:800px;margin:0 auto}

.oipkv-news-item{background:#fff;padding:20px 25px;margin-bottom:15px;border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,.06)}

.oipkv-news-item h3{font-size:17px;margin-bottom:8px}

.oipkv-news-date{color:#999;font-size:13px}

.oipkv-product-detail{display:flex;gap:30px;align-items:flex-start;flex-wrap:wrap}

.oipkv-detail-img{width:400px;height:300px;object-fit:cover;overflow:hidden;border-radius:10px;box-shadow:0 4px 16px rgba(0,0,0,.1)}
.oipkv-detail-img img{width:100%;height:100%;object-fit:cover;display:block;border-radius:inherit}

.oipkv-product-detail .oipkv-content{flex:1;min-width:280px;margin:0}

.oipkv-footer{background:hsl(11, 53%, 18%);color:rgba(255,255,255,.7);text-align:center;padding:30px 0;font-size:14px}



/* 汉堡菜单按钮 */

.oipkv-hamburger{display:none;flex-direction:column;justify-content:space-around;width:28px;height:24px;background:transparent;border:none;cursor:pointer;padding:0;z-index:110}

.oipkv-hamburger span{display:block;width:100%;height:3px;background:#fff;border-radius:2px;transition:.3s}

.oipkv-hamburger-active span:nth-child(1){transform:rotate(45deg) translate(6px,6px)}

.oipkv-hamburger-active span:nth-child(2){opacity:0}

.oipkv-hamburger-active span:nth-child(3){transform:rotate(-45deg) translate(6px,-6px)}



@supports ((-webkit-background-clip:text) or (background-clip:text)){.oipkv-section-title{background-image:linear-gradient(90deg,hsl(11, 58%, 30%),hsl(325, 59%, 45%),hsl(11, 58%, 30%));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;background-size:200% 100%;animation:oipkv-shim 4s linear infinite}}@keyframes oipkv-shim{to{background-position:200% center}}
.oipkv-logo{animation:oipkv-pulse 3.2s ease-in-out infinite}@keyframes oipkv-pulse{0%,100%{text-shadow:0 0 0 rgba(255,255,255,0)}50%{text-shadow:0 0 14px rgba(255,255,255,.65)}}
.oipkv-reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}.oipkv-reveal-on{opacity:1;transform:none}
@media(max-width:768px){

    .oipkv-hamburger{display:flex}

    .oipkv-nav{display:none;flex-direction:column;width:100%;gap:0;background:hsl(11, 58%, 30%);padding:0;position:absolute;top:100%;left:0}

    .oipkv-nav.oipkv-nav-open{display:flex}

    .oipkv-nav-link{display:block;padding:12px 20px;border-bottom:1px solid rgba(255,255,255,.1)}

    .oipkv-header-inner{flex-direction:row;justify-content:space-between;align-items:center;gap:8px;flex-wrap:nowrap;padding:0 2px}

    .oipkv-banner h1,.oipkv-page-banner h1{font-size:24px}

    .oipkv-product-grid,.oipkv-case-grid,.oipkv-service-grid{grid-template-columns:1fr}

    .oipkv-product-detail{flex-direction:column}

    .oipkv-detail-img{width:100%}
}