*{margin:0;padding:0;box-sizing:border-box}
:root{--c1:#2b6a8e;--c2:#d4652a;--c3:#fff;--c4:#333;--c5:#3a8a5c;--c6:#ddd;--c7:#f6f6f6;--r:3px;--font:'Noto Sans SC',-apple-system,'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif}
html{font-size:14px}
body{font-family:var(--font);color:var(--c4);background:#fff;line-height:1.65}
a{color:var(--c1);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
ul{list-style:none}
.w{max-width:1100px;margin:0 auto;padding:0 15px}
.btn{display:inline-block;padding:7px 18px;border-radius:var(--r);cursor:pointer;font-size:13px;border:1px solid var(--c6);background:#fff;color:var(--c4)}
.btn-p{background:var(--c1);color:#fff;border-color:var(--c1)}
.btn-s{background:#fff;color:var(--c4);border:1px solid #bbb}
.btn-g{background:var(--c5);color:#fff;border-color:var(--c5)}

/* NAV — 朴素白底导航 */
.nav{background:#fff;border-bottom:1px solid #ddd;padding:0;position:sticky;top:0;z-index:100}
.nav .w{display:flex;align-items:center;height:50px;gap:22px}
.nav .logo{color:var(--c1);font-size:15px;font-weight:700;white-space:nowrap}
.nav-links{display:flex;gap:2px}
.nav-links a{color:#555;padding:6px 10px;font-size:13px}
.nav-links a:hover,.nav-links a.on{color:var(--c1);text-decoration:none;font-weight:600}
.nav .search-box{margin-left:auto;position:relative}
.nav .search-box input{width:180px;padding:5px 28px 5px 9px;border:1px solid #ccc;border-radius:var(--r);font-size:12px;outline:none;background:#fafafa}
.nav .search-box input:focus{border-color:var(--c1);background:#fff}
.nav .search-box .ico{position:absolute;right:7px;top:50%;transform:translateY(-50%);color:#999;font-size:13px}
.search-drop{position:absolute;top:100%;left:0;right:0;background:#fff;border:1px solid #ddd;max-height:260px;overflow-y:auto;display:none;z-index:200}
.search-drop.show{display:block}
.search-drop a{display:flex;align-items:center;padding:7px 10px;color:#333;font-size:13px;border-bottom:1px solid #f0f0f0;text-decoration:none}
.search-drop a:hover{background:#f5f5f5}
.search-drop a img{width:34px;height:34px;object-fit:contain;margin-right:7px;background:#f5f5f5}
.search-drop .sp{color:var(--c2);font-weight:600;margin-left:auto;white-space:nowrap}
.mob-toggle{display:none;color:#333;font-size:20px;cursor:pointer;margin-left:auto}

/* BANNER — 朴素横幅，不用渐变 */
.banner{background:#f5f7f9;border-bottom:1px solid #e0e0e0;padding:28px 0 24px}
.banner h1{font-size:19px;font-weight:600;color:#333;margin-bottom:7px}
.banner p{font-size:13px;color:#666;max-width:600px;line-height:1.75}
.banner .quick-nums{display:flex;gap:28px;margin-top:14px;font-size:12px;color:#888}
.banner .quick-nums b{color:var(--c1);font-size:15px}

/* TICKER — 静态不滚动 */
.ticker{background:#fafafa;border-bottom:1px solid #eee;padding:6px 0;overflow:hidden;white-space:nowrap}
.ticker-inner{font-size:12px;color:#888}
.ticker-inner span{margin-right:36px}
.ticker-inner span b{color:var(--c2);font-weight:500}

/* SECTION */
.sec{padding:28px 0}
.sec-title{font-size:16px;font-weight:600;margin-bottom:15px;padding-bottom:8px;border-bottom:1px solid #eee}
.sec-title a{float:right;font-size:12px;color:#999;font-weight:400}

/* CATEGORY BAR — 文字链接不用卡片 */
.cat-bar{display:flex;gap:0;border-bottom:1px solid #eee;margin-bottom:18px}
.cat-bar a{padding:8px 16px;font-size:13px;color:#666;border-bottom:2px solid transparent}
.cat-bar a:hover,.cat-bar a.on{color:var(--c1);border-bottom-color:var(--c1);text-decoration:none}

/* PRODUCT CARDS — 朴素列表风 */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.card{background:#fff;border:1px solid #e5e5e5;overflow:hidden}
.card:hover{border-color:#ccc}
.card .img-wrap{position:relative;padding-top:60%;background:#f7f7f7;overflow:hidden}
.card .img-wrap img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:6px}
.card .badge{position:absolute;top:0;left:0;background:var(--c2);color:#fff;font-size:11px;padding:1px 7px}
.card .info{padding:9px 10px}
.card .info h3{font-size:13px;font-weight:600;margin-bottom:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.card .info .desc{font-size:12px;color:#999;margin-bottom:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.card .info .price{display:flex;align-items:baseline;gap:5px}
.card .info .price b{color:#c0392b;font-size:15px}
.card .info .price del{color:#bbb;font-size:12px}
.card .info .price .disc{background:#fdf0e9;color:var(--c2);font-size:10px;padding:1px 4px;margin-left:3px}
.card .info .meta{display:flex;gap:10px;margin-top:6px;font-size:11px;color:#bbb}

/* PRODUCT DETAIL */
.pd{padding:22px 0}
.pd-top{display:flex;gap:24px}
.pd-img{width:400px;flex-shrink:0;background:#f7f7f7;border:1px solid #e5e5e5}
.pd-img img{width:100%;object-fit:contain;padding:14px}
.pd-info{flex:1}
.pd-info h1{font-size:18px;font-weight:600;margin-bottom:8px;line-height:1.45}
.pd-info .price-row{background:#fdf8f5;padding:12px;border:1px solid #f0e0d0;margin-bottom:12px}
.pd-info .price-row b{color:#c0392b;font-size:22px}
.pd-info .price-row del{color:#bbb;font-size:13px;margin-left:8px}
.pd-info .price-row .disc{color:var(--c2);font-size:12px;margin-left:6px}
.spec-table{width:100%;border-collapse:collapse;margin:10px 0}
.spec-table td{padding:5px 10px;font-size:13px;border:1px solid #e8e8e8}
.spec-table td:first-child{background:#f9f9f9;width:75px;color:#777}
.pd-btns{display:flex;gap:8px;margin-top:16px}
.pd-btns .btn{padding:9px 28px;font-size:13px}
.tags{display:flex;gap:5px;margin:8px 0;flex-wrap:wrap}
.tags span{background:#f0f0f0;padding:2px 8px;font-size:12px;color:#666}
.tab-nav{display:flex;border-bottom:1px solid #ddd;margin-top:24px}
.tab-nav a{padding:8px 16px;font-size:13px;color:#777;cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px}
.tab-nav a.on{color:var(--c1);border-bottom-color:var(--c1);font-weight:600}
.tab-body{padding:14px 0}
.review-item{border-bottom:1px solid #f0f0f0;padding:12px 0}
.review-item .top{display:flex;align-items:center;gap:6px;margin-bottom:5px}
.review-item .top b{font-size:13px}
.review-item .top small{color:#aaa;font-size:12px}
.review-item .stars{color:#e6a817;font-size:12px}
.review-item p{font-size:13px;color:#555}
.faq-item{border-bottom:1px solid #f0f0f0;padding:10px 0}
.faq-item .q{font-weight:600;font-size:13px;margin-bottom:3px;color:#333}
.faq-item .q::before{content:'问：';color:#999;font-weight:400}
.faq-item .a{font-size:13px;color:#777;padding-left:0}
.faq-item .a::before{content:'答：';color:#999}
.sells-list{padding:0}
.sells-list li{padding:5px 0;font-size:13px;color:#555}
.sells-list li::before{content:'· ';color:#999}

/* ABOUT */
.about-hero{background:#f5f7f9;padding:26px 0;border-bottom:1px solid #e0e0e0}
.about-hero h1{font-size:18px;font-weight:600;color:#333}
.about-hero p{font-size:13px;color:#777;margin-top:3px}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:20px 0}
.about-card{background:#fff;border:1px solid #e5e5e5;padding:16px}
.about-card h3{font-size:14px;font-weight:600;margin-bottom:10px;color:#333;border-bottom:1px solid #eee;padding-bottom:6px}
.info-table{width:100%;border-collapse:collapse}
.info-table tr{border-bottom:1px solid #f0f0f0}
.info-table th{text-align:left;padding:6px 0;width:100px;font-size:13px;color:#888;font-weight:400}
.info-table td{padding:6px 0;font-size:13px}
.milestone{padding-left:14px;border-left:2px solid #ddd;margin-left:4px}
.milestone .item{padding:8px 0}
.milestone .item::before{content:'';display:none}
.milestone .item b{font-size:13px;color:#333}
.milestone .item p{font-size:13px;color:#777}

/* NEWS */
.news-card{display:flex;gap:14px;padding:12px 0;border-bottom:1px solid #eee;text-decoration:none;color:inherit}
.news-card:hover{text-decoration:none}
.news-card img{width:130px;height:85px;object-fit:cover;flex-shrink:0}
.news-card .txt h3{font-size:14px;font-weight:600;margin-bottom:3px;color:#333}
.news-card .txt p{font-size:12px;color:#999;margin-bottom:5px;line-height:1.65}
.news-card .txt .date{font-size:11px;color:#ccc}
.news-detail-body{max-width:740px;margin:0 auto;padding:24px 15px}
.news-detail-body h1{font-size:18px;margin-bottom:6px}
.news-detail-body .meta{font-size:12px;color:#aaa;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #eee}
.news-detail-body .content{font-size:14px;line-height:1.9}
.news-detail-body .content p{margin-bottom:12px}

/* CART & CHECKOUT */
.cart-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid #e5e5e5}
.cart-table th{background:#f5f5f5;padding:8px 10px;font-size:13px;text-align:left;border-bottom:1px solid #ddd}
.cart-table td{padding:8px 10px;font-size:13px;border-bottom:1px solid #f0f0f0}
.cart-table img{width:44px;height:44px;object-fit:contain;background:#f5f5f5}
.qty-ctrl{display:inline-flex;align-items:center;border:1px solid #ddd}
.qty-ctrl button{width:26px;height:26px;border:none;background:#f5f5f5;cursor:pointer;font-size:14px}
.qty-ctrl span{width:30px;text-align:center;font-size:13px;border-left:1px solid #ddd;border-right:1px solid #ddd}
.cart-summary{background:#fff;border:1px solid #e5e5e5;padding:14px;margin-top:12px;text-align:right}
.cart-summary .total{font-size:18px;color:#c0392b;font-weight:700}
.checkout-wrap{display:grid;grid-template-columns:1fr 320px;gap:18px}
.form-section{background:#fff;border:1px solid #e5e5e5;padding:16px;margin-bottom:14px}
.form-section h3{font-size:14px;font-weight:600;margin-bottom:12px;color:#333}
.form-row{margin-bottom:10px}
.form-row label{display:block;font-size:12px;margin-bottom:3px;color:#777}
.form-row input,.form-row textarea,.form-row select{width:100%;padding:7px 9px;border:1px solid #ddd;font-size:13px;font-family:var(--font);outline:none}
.form-row input:focus,.form-row textarea:focus{border-color:var(--c1)}
.pay-methods{display:flex;gap:10px}
.pay-methods label{display:flex;align-items:center;gap:6px;padding:8px 14px;border:1px solid #ddd;cursor:pointer;font-size:13px;flex:1}
.pay-methods label img{width:22px;height:22px}
.pay-methods input:checked+label,.pay-methods label.on{border-color:var(--c1);background:#f5f8fa}
.pay-methods input[type=radio]{display:none}
.order-summary{background:#fff;border:1px solid #e5e5e5;padding:16px;position:sticky;top:66px}
.order-summary h3{font-size:14px;font-weight:600;margin-bottom:10px}
.order-summary .line{display:flex;justify-content:space-between;font-size:13px;padding:5px 0;border-bottom:1px solid #f0f0f0}
.order-summary .line.total{border-top:1px solid #ddd;margin-top:5px;padding-top:8px;font-size:15px;font-weight:700;color:#c0392b}

/* AUTH */
.auth-wrap{max-width:380px;margin:40px auto;background:#fff;border:1px solid #e5e5e5;padding:24px}
.auth-wrap h2{font-size:17px;text-align:center;margin-bottom:16px}
.auth-wrap .btn{width:100%;padding:9px;font-size:13px}
.auth-wrap .link{text-align:center;margin-top:12px;font-size:13px;color:#999}

/* ORDERS */
.order-card{background:#fff;border:1px solid #e5e5e5;margin-bottom:10px;padding:12px}
.order-card .hd{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;padding-bottom:6px;border-bottom:1px solid #f0f0f0}
.order-card .hd .no{font-size:13px;color:#999}
.order-card .status{font-size:12px;padding:2px 8px}
.status-paid{background:#eaf5ee;color:var(--c5)}
.status-pending{background:#fdf0e9;color:var(--c2)}
.order-card .body{display:flex;align-items:center;gap:10px}
.order-card .body img{width:50px;height:50px;object-fit:contain;background:#f5f5f5}
.order-card .body .det h4{font-size:13px;margin-bottom:2px}
.order-card .body .det p{font-size:12px;color:#aaa}
.order-card .ft{display:flex;justify-content:flex-end;align-items:center;gap:10px;margin-top:8px;padding-top:6px;border-top:1px solid #f0f0f0}
.order-card .ft .amt{color:#c0392b;font-weight:700;font-size:14px}

/* SUCCESS */
.success-wrap{text-align:center;padding:50px 15px}
.success-wrap .checkmark{width:56px;height:56px;border-radius:50%;background:var(--c5);color:#fff;font-size:28px;display:flex;align-items:center;justify-content:center;margin:0 auto 14px}
.success-wrap h2{font-size:18px;margin-bottom:6px}
.success-wrap .info{font-size:13px;color:#777;margin-bottom:5px}
.success-wrap .amt{font-size:24px;color:#c0392b;font-weight:700;margin:10px 0}
.success-wrap .btns{display:flex;gap:8px;justify-content:center;margin-top:18px}

/* FOOTER — 朴素灰底 */
.footer{background:#f0f0f0;border-top:1px solid #ddd;color:#666;padding:28px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:22px}
.footer h4{color:#333;font-size:13px;margin-bottom:10px;font-weight:600}
.footer p,.footer li{font-size:12px;line-height:1.9}
.footer a{color:#666}
.footer a:hover{color:var(--c1)}
.footer .brand{font-size:14px;font-weight:600;color:#333;margin-bottom:6px}
.footer .copy{border-top:1px solid #ddd;margin-top:18px;padding:12px 0;font-size:11px;text-align:center;color:#aaa}
.footer .copy a{color:#999}

/* FLOAT BTNS */
.float-btn{position:fixed;right:16px;width:36px;height:36px;border-radius:50%;background:#666;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:90}
.float-btn:hover{background:#555}
.float-btn svg{width:16px;height:16px}
#backTop{bottom:80px}
#csBtn{bottom:36px}

/* CAREERS */
.job-card{background:#fff;border:1px solid #e5e5e5;padding:16px;margin-bottom:12px}
.job-card h3{font-size:14px;font-weight:600;margin-bottom:6px}
.job-card .meta-row{display:flex;gap:14px;font-size:12px;color:#999;margin-bottom:8px}
.job-card .meta-row b{color:var(--c2)}
.job-card h4{font-size:13px;margin:8px 0 3px;color:#555}
.job-card ul{padding-left:16px}
.job-card li{font-size:13px;list-style:disc;color:#666;line-height:1.75}
.benefit-tags{display:flex;gap:5px;flex-wrap:wrap;margin-top:6px}
.benefit-tags span{background:#f0f0f0;padding:2px 8px;font-size:12px;color:#666}

/* POLICY */
.policy{max-width:740px;margin:0 auto;padding:24px 15px}
.policy h1{font-size:18px;margin-bottom:5px}
.policy .update{font-size:12px;color:#aaa;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #eee}
.policy h2{font-size:15px;margin:16px 0 7px;color:#333}
.policy p{font-size:13px;margin-bottom:8px;line-height:1.85}
.policy ul{padding-left:18px;margin-bottom:8px}
.policy li{font-size:13px;list-style:disc;line-height:1.75;color:#555}

/* PAGE HEADER */
.page-hd{background:#f5f5f5;padding:20px 0;border-bottom:1px solid #e0e0e0}
.page-hd h1{font-size:16px;font-weight:600}
.page-hd .bread{font-size:12px;color:#aaa;margin-top:3px}
.page-hd .bread a{color:#aaa}

/* CONTACT */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:20px 0}
.contact-card{background:#fff;border:1px solid #e5e5e5;padding:16px}
.contact-card h3{font-size:14px;font-weight:600;margin-bottom:10px;color:#333}
.contact-card p{font-size:13px;line-height:1.9}

/* FILTER */
.filter-bar{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.filter-bar .cats{display:flex;gap:4px;flex-wrap:wrap}
.filter-bar .cats a{padding:4px 12px;border:1px solid #ddd;font-size:12px;color:#777;background:#fff;cursor:pointer}
.filter-bar .cats a.on{border-color:var(--c1);color:var(--c1);background:#f0f5f8}
.sort-sel{margin-left:auto;padding:4px 8px;border:1px solid #ddd;font-size:12px;outline:none;background:#fff;appearance:none;-webkit-appearance:none;padding-right:20px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23999'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 6px center}

.empty{text-align:center;padding:40px 15px;color:#aaa}
.empty .ico{font-size:36px;margin-bottom:10px}
.empty p{font-size:13px}

/* RESPONSIVE */
@media(max-width:768px){
  .nav .w{gap:0}
  .nav-links{display:none;position:absolute;top:50px;left:0;right:0;background:#fff;flex-direction:column;padding:6px 15px;border-bottom:1px solid #ddd}
  .nav-links.show{display:flex}
  .nav .search-box{display:none}
  .mob-toggle{display:block}
  .grid{grid-template-columns:repeat(2,1fr);gap:8px}
  .banner h1{font-size:16px}
  .cat-bar{flex-wrap:wrap}
  .pd-top{flex-direction:column}
  .pd-img{width:100%}
  .checkout-wrap{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:12px}
  .news-card{flex-direction:column}
  .news-card img{width:100%;height:140px}
  .filter-bar{flex-direction:column;align-items:flex-start}
  .sort-sel{margin-left:0}
}
@media(max-width:480px){
  .grid{grid-template-columns:1fr 1fr;gap:6px}
  .card .info{padding:7px 8px}
  .card .info h3{font-size:12px}
  .pd-btns{flex-direction:column}
  .pd-btns .btn{width:100%;text-align:center}
  .footer-grid{grid-template-columns:1fr}
}