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

body{font-family:'PingFang SC','Microsoft YaHei',Arial,sans-serif;color:#333;font-size:14px;line-height:1.8;background:#fff}

a{text-decoration:none;color:var(--brand,#0459d5)}

img{max-width:100%;vertical-align:middle}

@keyframes tbShimmer{0%{background-position:-400px 0}100%{background-position:400px 0}}

.pimg,.dc-thumb,.ep-thumb{background:linear-gradient(90deg,#eef2f7 25%,#f7fafd 37%,#eef2f7 63%);background-size:800px 100%;animation:tbShimmer 1.4s infinite linear}

.w1440{max-width:1440px;margin:0 auto;padding:0 20px}

/* ===== 顶栏（深灰） ===== */

.header_top{background:linear-gradient(90deg,#0a1f3d,#0d2a52)!important;color:#c8d4e8;font-size:13px;padding:8px 0}

.header_top .w1440{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px}

.header_top h4{font-size:13px;font-weight:400;color:#c8d4e8;display:flex;align-items:center;gap:6px;flex-wrap:wrap}

.header_top h4 img{height:14px;opacity:.8}

.header_top .header_links a{color:#c8d4e8}

.header_top .header_links a.active,.header_top .header_links a:hover{color:#fff}

.header_top .header_links span{color:#666;margin:0 6px}

/* ===== 导航区（白底） ===== */

.header_nav{background:#f5f7fa;border-bottom:1px solid #e8eef8;box-shadow:0 2px 12px rgba(15,23,42,.05);position:sticky;top:0;z-index:99;transition:box-shadow .25s,background .25s}

.header_nav_scrolled{box-shadow:0 8px 28px rgba(10,31,61,.12);background:rgba(245,247,250,.98);backdrop-filter:blur(8px)}

.header_nav_scrolled .w1440{height:72px}

.header_nav .w1440{display:flex;align-items:center;height:88px;gap:20px}

.h_logo{flex:0 0 auto;display:flex;align-items:center}

.h_logo img{height:52px}

.header_dl{flex:0 0 auto;margin-left:14px;border-left:2px solid var(--brand,#0459d5);padding-left:14px;line-height:1.4}

.header_dl dt{font-size:13px;color:#999;font-weight:400}

.header_dl dd{font-size:18px;color:var(--brand,#0459d5);font-weight:700;letter-spacing:1px}

.header_dao{flex:1 1 auto;display:flex;justify-content:flex-end}

.nav{display:flex;gap:0;list-style:none;flex-shrink:0}

.nav>li{position:relative;flex-shrink:0;white-space:nowrap}

.nav>li>h3{font-weight:400}

.nav>li>h3>a{display:block;padding:0 14px;height:88px;line-height:88px;color:#1a2b45;font-size:15px;font-weight:500;transition:.2s;position:relative}

.nav>li>h3>a:hover,.nav>li.active>h3>a{color:var(--brand,#0459d5);background:#f0f6ff}

.nav>li.active>h3>a::after{content:'';position:absolute;left:22px;right:22px;bottom:0;height:3px;background:linear-gradient(90deg,var(--brand,#0459d5),#3b82f6);border-radius:3px 3px 0 0}

/* 下拉菜单 */

.nav>li .sub{position:absolute;top:100%;left:0;min-width:170px;background:#fff;border:1px solid #e8eef8;border-top:2px solid var(--brand,#0459d5);border-radius:0 0 10px 10px;box-shadow:0 10px 30px rgba(10,31,61,.12);opacity:0;visibility:hidden;transform:translateY(8px);transition:all .2s ease;z-index:999;list-style:none;overflow:hidden;display:block;margin:0;padding:0}

.nav>li:hover .sub,.nav>li:focus-within .sub{opacity:1;visibility:visible;transform:translateY(0)}

.nav>li .sub li{list-style:none}

.nav>li .sub li a{display:block;padding:11px 20px;color:#475569;font-size:14px;border-bottom:1px solid #f1f5f9;transition:.15s}

.nav>li .sub li:last-child a{border-bottom:none}

.nav>li .sub li a:hover{background:#f0f6ff;color:var(--brand,#0459d5);padding-left:24px}

/* 首页轮播 */

.tb-banner{position:relative;overflow:hidden;background:var(--brand,#0459d5)}

.tb-banner .banner-slides{position:relative}

.tb-banner .banner-slide{position:relative;min-height:480px;display:flex;align-items:center;opacity:0;visibility:hidden;transition:opacity .6s ease;position:absolute;top:0;left:0;width:100%}

.tb-banner .banner-slide.active{opacity:1;visibility:visible;position:relative}

.tb-banner .banner-bg{position:absolute;inset:0;opacity:.18;filter:blur(2px)}

.tb-banner .w1440{position:relative;z-index:2;display:flex;align-items:center;gap:40px;padding:60px 20px}

.tb-banner .ban-left{flex:1 1 560px;min-width:0;color:#fff}

.tb-banner .ban-left h1{font-size:42px;font-weight:800;line-height:1.3;margin-bottom:14px;letter-spacing:2px}

.tb-banner .ban-left .sub{font-size:18px;opacity:.9;margin-bottom:10px}

.tb-banner .ban-left .en{font-size:15px;opacity:.7;font-style:italic;margin-bottom:24px}

.tb-banner .ban-left .ban-btn{display:inline-block;background:#fff;color:var(--brand,#0459d5);padding:12px 32px;border-radius:30px;font-size:15px;font-weight:600;transition:.2s}

.tb-banner .ban-left .ban-btn:hover{background:#e7f0fb;transform:translateY(-2px)}

.tb-banner .ban-right{flex:0 0 340px;background:rgba(255,255,255,.12);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.25);border-radius:14px;padding:24px;color:#fff}

.tb-banner .ban-right .tag{display:inline-block;background:rgba(255,255,255,.2);padding:3px 14px;border-radius:20px;font-size:12px;letter-spacing:2px;margin-bottom:12px}

.tb-banner .ban-right h3{font-size:22px;margin-bottom:4px;letter-spacing:1px}

.tb-banner .ban-right .sub2{font-size:12px;opacity:.85;margin-bottom:14px}

.tb-banner .ban-right .row{display:flex;justify-content:space-between;font-size:13px;padding:8px 0;border-top:1px solid rgba(255,255,255,.2)}

.tb-banner .ban-right .row b{font-weight:600}

.tb-banner .dots{position:absolute;bottom:18px;left:0;right:0;display:flex;justify-content:center;gap:8px;z-index:3}

.tb-banner .dots button{width:10px;height:10px;border-radius:50%;border:none;background:rgba(255,255,255,.5);cursor:pointer;padding:0;transition:.2s}

.tb-banner .dots button.on{background:#fff;width:28px;border-radius:5px}

.tb-banner .ban-prev,.tb-banner .ban-next{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:48px;height:48px;border-radius:50%;border:none;background:rgba(255,255,255,.2);color:#fff;font-size:28px;line-height:1;cursor:pointer;transition:.2s;backdrop-filter:blur(4px)}

.tb-banner .ban-prev:hover,.tb-banner .ban-next:hover{background:rgba(255,255,255,.35)}

.tb-banner .ban-prev{left:20px}

.tb-banner .ban-next{right:20px}

/* 应用案例 */

.tb-cases{background:#fff;padding:40px 0}

.tb-cases .w1440{display:flex;gap:16px;overflow-x:auto;padding-bottom:8px}

.tb-cases .case-card{flex:0 0 calc(25% - 12px);min-width:240px;border-radius:14px;overflow:hidden;position:relative;cursor:pointer;transition:.25s;border:1px solid #e8eef8}

.tb-cases .case-card:hover{transform:translateY(-4px);box-shadow:0 10px 28px rgba(4,89,213,.15)}

.tb-cases .case-card img{width:100%;height:180px;object-fit:cover;display:block}

.tb-cases .case-card .cap{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,.65));color:#fff;padding:24px 14px 12px;font-size:14px;font-weight:600}

/* 热门搜索+搜索 */

.tb-search-bar{background:#f7f9fc;padding:22px 0;border-top:1px solid #eef2f9;border-bottom:1px solid #eef2f9}

.tb-search-bar .w1440{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}

.tb-hot{display:flex;align-items:center;gap:10px;flex-wrap:wrap}

.tb-hot .label{color:#e65100;font-weight:700;font-size:15px}

.tb-hot a{color:#555;font-size:14px;padding:4px 12px;border-radius:16px;background:#fff;border:1px solid #e0e6f0;transition:.15s}

.tb-hot a:hover{color:var(--brand,#0459d5);border-color:var(--brand,#0459d5)}

.tb-site-search{display:flex;align-items:center;gap:0;background:#fff;border:2px solid var(--brand,#0459d5);border-radius:6px;overflow:hidden;flex:0 0 380px;max-width:100%}

.tb-site-search input{flex:1;border:none;padding:10px 14px;font-size:14px;outline:none;color:#333}

.tb-site-search button{border:none;background:var(--brand,#0459d5);color:#fff;padding:10px 22px;font-size:14px;cursor:pointer;font-weight:600}

.tb-site-search button:hover{background:#193f70}

/* 产品系列（左文字右大图） */

.tb-prod-series{background:#fff;padding:56px 0}

.tb-section-head{text-align:center;margin-bottom:36px}

.tb-section-head h2{font-size:32px;color:#193f70;font-weight:800;letter-spacing:2px;position:relative;display:inline-block}

.tb-section-head h2::after{content:'';display:block;width:50px;height:3px;background:var(--brand,#0459d5);margin:12px auto 0}

.tb-section-head .en{color:#ccc;font-size:14px;letter-spacing:4px;margin-top:6px}

.tb-section-head .desc{color:#888;font-size:14px;margin-top:10px;max-width:600px;margin-left:auto;margin-right:auto}

.tb-ps-wrap{display:flex;gap:30px;align-items:stretch}

.tb-ps-list{flex:0 0 340px;display:flex;flex-direction:column}

.tb-ps-item{padding:18px 20px;border-bottom:1px solid #eee;cursor:pointer;transition:.2s;position:relative}

.tb-ps-item .cn{font-size:18px;color:#333;font-weight:600;transition:.2s}

.tb-ps-item .en{font-size:12px;color:#aaa;margin-top:2px}

.tb-ps-item:hover .cn,.tb-ps-item.on .cn{color:var(--brand,#0459d5)}

.tb-ps-item.on{background:#f5f8ff}

.tb-ps-item.on::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand,#0459d5)}

.tb-ps-img{flex:1 1 auto;min-width:0;border-radius:12px;overflow:hidden;background:#f7f9fc;display:flex;align-items:center;justify-content:center;min-height:380px;border:1px solid #e8eef8}

.tb-ps-img img{width:100%;height:100%;object-fit:contain;max-height:420px}

/* 产品展示（型号卡片） */

.tb-prod-show{background:#f7f9fc;padding:56px 0}

.tb-ps-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px}

.tb-ps-card{background:#fff;border:1px solid #e8eef8;border-radius:10px;overflow:hidden;transition:.25s;cursor:pointer}

.tb-ps-card:hover{transform:translateY(-4px);box-shadow:0 10px 26px rgba(4,89,213,.12);border-color:var(--brand,#0459d5)}

.tb-ps-card .pimg{height:160px;overflow:hidden;background:#fafbfd;display:flex;align-items:center;justify-content:center}

.tb-ps-card .pimg img{width:100%;height:100%;object-fit:cover}

.tb-ps-card .pbody{padding:14px}

.tb-ps-card h4{font-size:15px;color:#193f70;margin-bottom:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.tb-ps-card .more{color:var(--brand,#0459d5);font-size:13px;font-weight:600}

.tb-ps-card .more::after{content:' +';font-weight:700}

/* 关于实一 */

.tb-about{background:#fff;padding:56px 0;position:relative;overflow:hidden}

.tb-about::before{content:'ABOUT SHIYI';position:absolute;right:-20px;top:30px;font-size:80px;font-weight:900;color:#f0f3f8;letter-spacing:4px;z-index:0;line-height:1}

.tb-about .w1440{position:relative;z-index:1;display:flex;gap:40px;align-items:center;flex-wrap:wrap}

.tb-about .ab-left{flex:1 1 400px;min-width:0}

.tb-about .ab-left h2{font-size:30px;color:#193f70;font-weight:800;margin-bottom:8px}

.tb-about .ab-left .en{color:var(--brand,#0459d5);font-size:14px;letter-spacing:3px;margin-bottom:18px}

.tb-about .ab-left p{color:#666;font-size:15px;line-height:2;margin-bottom:14px}

.tb-about .ab-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}

.tb-about .ab-tags span{background:#eef4fc;color:#193f70;padding:6px 16px;border-radius:20px;font-size:13px;font-weight:600}

.tb-about .ab-right{flex:1 1 340px;min-width:0;display:grid;grid-template-columns:1fr 1fr;gap:12px}

.tb-about .ab-right .ab-card{background:#f7f9fc;border:1px solid #e8eef8;border-radius:10px;padding:20px;text-align:center;transition:.2s}

.tb-about .ab-right .ab-card:hover{border-color:var(--brand,#0459d5);background:#fff}

.tb-about .ab-right .ab-card .ic{font-size:28px;margin-bottom:8px}

.tb-about .ab-right .ab-card b{display:block;color:#193f70;font-size:15px}

.tb-about .ab-right .ab-card small{color:#999;font-size:12px}

/* 新闻资讯 */

.tb-news{background:#f7f9fc;padding:56px 0}

.tb-news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}

.tb-news-card{background:#fff;border:1px solid #e8eef8;border-radius:10px;padding:24px;transition:.2s;cursor:pointer}

.tb-news-card:hover{transform:translateY(-3px);box-shadow:0 8px 22px rgba(4,89,213,.1)}

.tb-news-card .ncat{display:inline-block;background:#eef4fc;color:var(--brand,#0459d5);font-size:12px;padding:3px 10px;border-radius:4px;margin-bottom:12px;font-weight:600}

.tb-news-card h4{font-size:17px;color:#193f70;margin-bottom:10px;line-height:1.5}

.tb-news-card p{color:#888;font-size:13.5px;line-height:1.8;margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

.tb-news-card .ndate{color:#aaa;font-size:12px}

/* 联系我们 */

.tb-contact{background:linear-gradient(135deg,#193f70,var(--brand,#0459d5));padding:56px 0;color:#fff}

.tb-contact .w1440{display:flex;gap:40px;align-items:center;flex-wrap:wrap}

.tb-contact .ct-left{flex:1 1 400px;min-width:0}

.tb-contact .ct-left h2{font-size:30px;font-weight:800;margin-bottom:10px}

.tb-contact .ct-left p{opacity:.85;font-size:15px;line-height:1.9}

.tb-contact .ct-right{flex:1 1 340px;min-width:0}

.tb-contact .ct-row{display:flex;align-items:center;gap:14px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.15)}

.tb-contact .ct-row:last-child{border-bottom:none}

.tb-contact .ct-row .ic{width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.15);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}

.tb-contact .ct-row .lbl{font-size:12px;opacity:.7}

.tb-contact .ct-row .val{font-size:17px;font-weight:600}

/* 页脚 */

.footer{background:#191919;color:#999;padding:50px 0 0}

.footer .w1440{display:flex;flex-wrap:wrap;gap:36px}

.footer .f-col{flex:1 1 220px;min-width:0}

.footer h4{color:#fff;font-size:16px;margin-bottom:16px;padding-bottom:10px;border-bottom:1px solid #333;position:relative}

.footer h4::after{content:'';position:absolute;left:0;bottom:-1px;width:30px;height:2px;background:var(--brand,#0459d5)}

.footer p,.footer a{color:#999;font-size:13px;line-height:2.2;display:block;transition:.15s}

.footer a:hover{color:var(--brand,#0459d5)}

.footer .f-tel{color:#fff;font-size:22px;font-weight:700;margin:8px 0}

.footer .copyright{border-top:1px solid #2a2a2a;margin-top:36px;padding:18px 0;font-size:12.5px;text-align:center;color:#666}

/* 右侧悬浮 */

.float-bar{position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:200;display:flex;flex-direction:column}

.fb-item{display:flex;flex-direction:column;align-items:center;justify-content:center;width:72px;height:72px;background:var(--brand,#0459d5);color:#fff;font-size:12px;cursor:pointer;transition:.2s;border-bottom:1px solid rgba(255,255,255,.15);gap:4px}

.fb-item:hover{background:#193f70}

.fb-item .fic{font-size:22px;line-height:1}

/* 列表/详情页通用 */

.page-banner{background:linear-gradient(135deg,var(--brand,#0459d5),#193f70);padding:44px 0;color:#fff}

.page-banner h1{font-size:28px;font-weight:700}

.page-banner-title{font-size:28px;font-weight:700;line-height:1.4}

.crumbs{font-size:13px;color:rgba(255,255,255,.7);margin-top:6px}

.crumbs a{color:rgba(255,255,255,.7)}

.main-card{background:#fff;border:1px solid #eef2f9;border-radius:10px;padding:28px;margin:26px 0}

.list-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed #e4ecf7}

.list-item .li-img{flex:0 0 168px;height:108px;border-radius:8px;overflow:hidden;background:#f7f9fc;display:flex;align-items:center;justify-content:center;border:1px solid #e6edf9}

.list-item .li-img img{width:100%;height:100%;object-fit:cover}

.list-item .li-img .li-placeholder{color:#b9c6e0;font-size:13px}

.list-item .li-body{flex:1;min-width:0}

.list-item h3{font-size:18px;margin-bottom:6px}

.list-item h3 a{color:#193f70}

.list-item h3 a:hover{color:var(--brand,#0459d5)}

.list-item .desc{color:#6b7a99;font-size:13.5px;margin-bottom:8px}

.list-item .meta{color:#96a3c0;font-size:12.5px}

.pagination{margin:24px 0;text-align:center;color:#6b7a99}

.pagination ul{display:inline-flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;list-style:none;padding:0;margin:0}

.pagination li{display:inline-block}

.pagination a,.pagination span{display:inline-block;padding:6px 13px;margin:0;border:1px solid #dfe8f6;border-radius:6px;color:#33415c;text-decoration:none;transition:all .2s}

.pagination a:hover{border-color:var(--brand,#0459d5);color:var(--brand,#0459d5)}

.pagination .current,.pagination li.active a{background:var(--brand,#0459d5);color:#fff;border-color:var(--brand,#0459d5)}

.article-img{margin-bottom:18px;border-radius:10px;overflow:hidden;border:1px solid #e6edf9;background:#f7fafd;text-align:center;max-height:420px;display:flex;align-items:center;justify-content:center}

.article-img img{max-height:420px;width:auto;max-width:100%;object-fit:contain}

.article-title{font-size:26px;color:#193f70;margin-bottom:10px}

.article-meta{color:#8a99b8;font-size:13px;padding-bottom:14px;border-bottom:1px solid #eef2f9;margin-bottom:20px}

.article-meta span{margin-right:18px}

.article-body{line-height:2;font-size:15px;color:#333}

.article-body h2{font-size:20px;color:#193f70;margin:22px 0 10px}

.article-body h3{font-size:17px;color:#193f70;margin:18px 0 8px}

.article-body p{margin-bottom:12px}

.article-body ul,.article-body ol{padding-left:24px;margin-bottom:12px}

.pn{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-top:26px;padding-top:16px;border-top:1px solid #eef2f9;font-size:14px}

.pn a{color:var(--brand,#0459d5);max-width:46%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 聊天 widget */

#tbai-chat-btn{position:fixed;right:20px;bottom:24px;z-index:300;display:flex;align-items:center;gap:8px;background:linear-gradient(135deg,#1c4f9c,var(--brand,#0459d5));color:#fff;padding:13px 20px;border-radius:30px;box-shadow:0 8px 24px rgba(4,89,213,.35);cursor:pointer;font-size:14px;font-weight:600;transition:transform .15s}

#tbai-chat-btn:hover{transform:translateY(-2px)}

#tbai-chat-btn.hidden{display:none}

#tbai-chat-panel{position:fixed;right:20px;bottom:24px;z-index:310;width:340px;height:480px;max-height:calc(100vh - 40px);background:#fff;border-radius:16px;box-shadow:0 18px 50px rgba(16,42,90,.28);border:1px solid #dbe7f7;display:none;flex-direction:column;overflow:hidden}

#tbai-chat-panel.open{display:flex}

#tbai-chat-panel .tbai-head{background:linear-gradient(135deg,#1c4f9c,var(--brand,#0459d5));color:#fff;padding:14px 16px;position:relative;flex:0 0 auto}

#tbai-chat-panel .tbai-title{font-size:15px;font-weight:600}

#tbai-chat-panel .tbai-sub{font-size:11.5px;color:#cfe0ff;margin-top:3px}

#tbai-chat-panel .tbai-close{position:absolute;right:10px;top:10px;width:28px;height:28px;border:none;background:rgba(255,255,255,.16);color:#fff;border-radius:50%;font-size:16px;cursor:pointer;line-height:1}

#tbai-chat-panel .tbai-msgs{flex:1 1 auto;overflow-y:auto;padding:14px;background:#f5f8fd}

#tbai-chat-panel .tbai-empty{color:#8a99b8;font-size:13px;text-align:center;padding:40px 10px;line-height:1.9}

.tbai-msg{margin-bottom:12px;max-width:82%}

.tbai-msg-me{margin-left:auto}

.tbai-msg-admin{margin-right:auto}

.tbai-who{font-size:11px;color:#9aa8c4;margin-bottom:3px}

.tbai-bubble{padding:9px 13px;border-radius:12px;font-size:13.5px;line-height:1.6;word-break:break-word;white-space:pre-wrap}

.tbai-msg-me .tbai-bubble{background:var(--brand,#0459d5);color:#fff;border-top-right-radius:3px}

.tbai-msg-admin .tbai-bubble{background:#fff;color:#333;border:1px solid #dbe7f7;border-top-left-radius:3px}

#tbai-chat-panel .tbai-foot{flex:0 0 auto;padding:10px 12px;border-top:1px solid #e8eef8;background:#fff}

#tbai-chat-panel .tbai-name{width:100%;border:1px solid #dbe7f7;border-radius:8px;padding:6px 10px;font-size:12.5px;margin-bottom:8px;color:#333;background:#f7fafd}

#tbai-chat-panel .tbai-row{display:flex;gap:8px;align-items:flex-end}

#tbai-chat-panel .tbai-input{flex:1 1 auto;border:1px solid #cfe0ff;border-radius:10px;padding:8px 10px;font-size:13.5px;resize:none;font-family:inherit;color:#333;outline:none;min-height:40px}

#tbai-chat-panel .tbai-input:focus{border-color:var(--brand,#0459d5)}

#tbai-chat-panel .tbai-send{flex:0 0 auto;background:var(--brand,#0459d5);color:#fff;border:none;border-radius:10px;padding:9px 16px;font-size:13.5px;cursor:pointer;font-weight:600}

#tbai-chat-panel .tbai-send:hover{background:#193f70}

#tbai-chat-panel .tbai-tip{font-size:11.5px;color:#8a99b8;margin-top:7px;text-align:center}

/* 联系页 */

.contact-card{background:#fff;border:1px solid #e8eef8;border-radius:12px;overflow:hidden}

.cc-item{display:flex;gap:14px;padding:18px 20px;border-bottom:1px solid #f0f4fa;align-items:flex-start}

.cc-ic{width:42px;height:42px;border-radius:10px;background:linear-gradient(135deg,#eef4fc,#dbe8fb);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}

.cc-l{font-size:12.5px;color:#999;margin-bottom:2px}

.cc-v{font-size:15px;color:#193f70;font-weight:600;line-height:1.5}

.cc-s{font-size:12.5px;color:#aaa;margin-top:2px}

.contact-form-wrap{background:#fff;border:1px solid #e8eef8;border-radius:12px;padding:30px 32px}

.cf-row{display:flex;gap:16px;margin-bottom:18px}

.cf-group{flex:1;min-width:0;margin-bottom:18px}

.cf-row .cf-group{margin-bottom:0}

.cf-group label{display:block;font-size:13.5px;color:#555;font-weight:600;margin-bottom:8px}

.cf-group input,.cf-group select,.cf-group textarea{width:100%;padding:11px 14px;border:1px solid #dce5f2;border-radius:8px;font-size:14px;color:#333;box-sizing:border-box;transition:.2s;font-family:inherit}

.cf-group input:focus,.cf-group select:focus,.cf-group textarea:focus{outline:none;border-color:var(--brand,#0459d5);box-shadow:0 0 0 3px rgba(4,89,213,.1)}

.cf-group textarea{resize:vertical;min-height:110px}

.cf-submit{background:linear-gradient(135deg,#1c4f9c,var(--brand,#0459d5));color:#fff;border:none;padding:13px 40px;border-radius:30px;font-size:16px;font-weight:700;cursor:pointer;transition:.2s;box-shadow:0 6px 18px rgba(4,89,213,.25)}

.cf-submit:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(4,89,213,.35)}

@media(max-width:768px){

  .cf-row{flex-direction:column;gap:0}

  .cf-row .cf-group{margin-bottom:18px}

  .contact-form-wrap{padding:20px 16px}

}

/* 关于页 */

.about-layout{display:flex;gap:28px;flex-wrap:wrap}

.about-sidebar{flex:0 0 240px;min-width:0}

.as-title{font-size:22px;color:#193f70;font-weight:800;padding:18px 20px 4px;background:#fff;border:1px solid #e8eef8;border-bottom:none;border-radius:10px 10px 0 0}

.as-en{font-size:13px;color:#aaa;padding:0 20px 14px;background:#fff;border:1px solid #e8eef8;border-bottom:none;letter-spacing:1px}

.as-menu{list-style:none;margin:0;padding:0;background:#fff;border:1px solid #e8eef8;border-top:none}

.as-menu li{border-bottom:1px solid #f0f4fa}

.as-menu li:last-child{border-bottom:none}

.as-menu li a{display:block;padding:14px 20px;color:#555;font-size:14.5px;transition:.2s;border-left:3px solid transparent}

.as-menu li a:hover{color:var(--brand,#0459d5);background:#f5f9ff}

.as-menu li.active a{color:var(--brand,#0459d5);font-weight:700;background:#eef4fc;border-left:3px solid var(--brand,#0459d5)}

.as-banner{margin-top:16px;background:linear-gradient(135deg,#1c4f9c,var(--brand,#0459d5));border-radius:10px;padding:20px;color:#fff}

.asb-t{font-size:13px;opacity:.85;margin-bottom:8px}

.asb-b{font-size:14px;line-height:1.9;font-weight:600}

.about-main{flex:1;min-width:0;background:#fff;border:1px solid #e8eef8;border-radius:10px;padding:30px 32px}

.am-header{margin-bottom:24px;padding-bottom:20px;border-bottom:2px solid var(--brand,#0459d5)}

.am-title{font-size:24px;color:#193f70;font-weight:800;margin-bottom:8px}

.am-sub{font-size:14px;color:#888;letter-spacing:1px}

/* 关于页内容样式 */

.about-intro{margin-bottom:28px}

.about-h3{font-size:18px;color:#193f70;font-weight:700;margin-bottom:6px}

.about-sub{font-size:14px;color:var(--brand,#0459d5);margin-bottom:6px;font-weight:600}

.about-tagline{font-size:15px;color:#333;font-weight:600;margin:12px 0;padding:10px 16px;background:#f5f9ff;border-left:3px solid var(--brand,#0459d5);border-radius:0 6px 6px 0}

.about-intro p{color:#555;font-size:14.5px;line-height:2;margin-bottom:12px}

.about-section{margin-bottom:28px}

.about-h4{font-size:17px;color:#193f70;font-weight:700;margin-bottom:14px}

.about-desc{color:#666;font-size:14px;line-height:1.9;margin-bottom:14px}

.about-products{display:flex;flex-wrap:wrap;gap:10px}

.ap-item{background:#eef4fc;color:var(--brand,#0459d5);padding:8px 18px;border-radius:20px;font-size:13.5px;font-weight:600;border:1px solid #cfe0ff}

.about-fields{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:12px}

.af-item{display:flex;align-items:center;gap:8px;padding:12px;background:#f7f9fc;border-radius:8px;border:1px solid #eef2f8;font-size:13.5px;color:#444}

.af-ic{font-size:18px}

.about-contact-card{margin-top:24px;background:linear-gradient(135deg,#1c4f9c,var(--brand,#0459d5));border-radius:12px;padding:24px 28px;color:#fff}

.acc-row{display:flex;align-items:center;gap:14px;margin-bottom:16px}

.acc-ic{width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.15);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}

.acc-l{font-size:12px;opacity:.8}

.acc-v{font-size:16px;font-weight:700}

.acc-btn{display:inline-block;background:#fff;color:var(--brand,#0459d5);padding:11px 30px;border-radius:30px;font-size:15px;font-weight:700;margin-top:8px}

@media(max-width:768px){

  .about-sidebar{flex:0 0 100%}

  .about-main{padding:20px 16px}

  .about-fields{grid-template-columns:repeat(auto-fill,minmax(100px,1fr))}

}

/* 产品详情页 */

.prod-detail{display:flex;gap:36px;flex-wrap:wrap;margin-bottom:36px}

.pd-left{flex:0 0 460px;min-width:0}

.pd-main-img{background:#f7f9fc;border:1px solid #e8eef8;border-radius:12px;overflow:hidden;display:flex;align-items:center;justify-content:center;min-height:360px}

.pd-main-img img{width:100%;height:100%;object-fit:contain;max-height:420px}

.pd-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}

.pd-tag{background:#eef4fc;color:var(--brand,#0459d5);font-size:12px;padding:4px 12px;border-radius:14px;border:1px solid #cfe0ff;font-weight:600}

.pd-right{flex:1 1 340px;min-width:0}

.pd-title{font-size:26px;color:#193f70;font-weight:800;margin-bottom:10px}

.pd-desc{color:#666;font-size:14px;line-height:1.9;margin-bottom:18px}

.pd-spec-box{background:#f7f9fc;border:1px solid #e8eef8;border-radius:10px;padding:6px 18px;margin-bottom:20px}

.pd-spec-row{display:flex;justify-content:space-between;padding:11px 0;border-bottom:1px solid #e8eef8;font-size:14px}

.pd-spec-row:last-child{border-bottom:none}

.pd-spec-row span{color:#888}

.pd-spec-row b{color:#193f70;font-weight:600}

.pd-inquiry{margin-bottom:18px}

.pd-inquiry-btn{display:inline-block;background:linear-gradient(135deg,#1c4f9c,var(--brand,#0459d5));color:#fff;padding:13px 36px;border-radius:30px;font-size:16px;font-weight:700;transition:.2s;box-shadow:0 6px 18px rgba(4,89,213,.25)}

.pd-inquiry-btn:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(4,89,213,.35)}

.pd-inquiry-hint{color:#8a99b8;font-size:13px;margin-left:14px}

.pd-contact-mini{background:#fff;border:1px solid #e8eef8;border-radius:10px;padding:14px 18px}

.pcm-item{display:flex;align-items:center;gap:12px;padding:8px 0}

.pcm-ic{width:36px;height:36px;border-radius:50%;background:#eef4fc;display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}

.pcm-l{font-size:12px;color:#999}

.pcm-v{font-size:14px;color:#193f70;font-weight:600}

.pd-content{background:#fff;border:1px solid #e8eef8;border-radius:10px;padding:28px;margin-bottom:24px}

.pd-content-title{font-size:20px;color:#193f70;font-weight:700;margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--brand,#0459d5);display:inline-block}

.pd-related{margin-top:24px}

.article-wrap{background:#fff;border:1px solid #e8eef8;border-radius:10px;padding:32px}

/* 列表页 */

.list-page{padding:36px 0}

.list-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}

.list-card{background:#fff;border:1px solid #e8eef8;border-radius:10px;overflow:hidden;transition:.25s;cursor:pointer}

.list-card:hover{transform:translateY(-4px);box-shadow:0 10px 26px rgba(4,89,213,.12);border-color:var(--brand,#0459d5)}

.list-card .lc-img{height:180px;overflow:hidden;background:#f7f9fc;display:flex;align-items:center;justify-content:center}

.list-card .lc-img img{width:100%;height:100%;object-fit:cover}

.list-card .lc-body{padding:16px 18px}

.list-card h4{font-size:16px;color:#193f70;margin-bottom:8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.list-card p{color:#888;font-size:13px;line-height:1.7;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

.list-card .lc-meta{display:flex;justify-content:space-between;color:#aaa;font-size:12px;padding-top:10px;border-top:1px solid #f0f0f0}

/* 新闻列表（左图右文） */

.news-list-wrap{display:flex;flex-direction:column;gap:0}

.news-row{display:flex;gap:20px;padding:22px 0;border-bottom:1px solid #eef2f9;transition:.2s}

.news-row:hover{background:#fafbfd}

.news-row .nr-img{flex:0 0 220px;height:140px;border-radius:10px;overflow:hidden;background:#f7f9fc}

.news-row .nr-img img{width:100%;height:100%;object-fit:cover}

.news-row .nr-body{flex:1;min-width:0}

.news-row h3{font-size:18px;color:#193f70;margin-bottom:8px}

.news-row h3 a:hover{color:var(--brand,#0459d5)}

.news-row p{color:#888;font-size:13.5px;line-height:1.8;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

.news-row .nr-meta{color:#aaa;font-size:12.5px}

.news-row .nr-meta span{margin-right:16px}

@media(max-width:768px){

  .pd-left{flex:0 0 100%}

  .pd-main-img{min-height:260px}

  .news-row{flex-direction:column}

  .news-row .nr-img{flex:0 0 auto;width:100%;height:180px}

}

.m-menu-btn{display:none;width:40px;height:40px;align-items:center;justify-content:center;cursor:pointer;border-radius:8px;margin-left:auto}

.m-menu-btn:active{background:#f0f0f0}

.m-menu-btn i{font-size:20px;color:#1a2b45}

.m-sidebar{position:fixed;top:0;right:-85%;width:85%;max-width:320px;height:100%;background:#fff;z-index:10001;transition:right .3s ease;overflow-y:auto;box-shadow:-4px 0 20px rgba(0,0,0,.15)}

.m-sidebar.open{right:0}

.m-sidebar .m-sidebar-head{background:linear-gradient(135deg,var(--brand,#0459d5),#0b6df2);color:#fff;padding:20px 16px}

.m-sidebar .m-sidebar-head h3{font-size:16px;margin-bottom:4px}

.m-sidebar .m-sidebar-head p{font-size:12px;opacity:.8}

.m-sidebar .m-sidebar-close{position:absolute;top:16px;right:16px;width:32px;height:32px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:#fff;font-size:18px}

.m-sidebar .m-nav-list{padding:8px 0}

.m-sidebar .m-nav-item{display:flex;align-items:center;padding:14px 16px;border-bottom:1px solid #f0f4fa;font-size:15px;color:#333}

.m-sidebar .m-nav-item i{width:24px;color:var(--brand,#0459d5);margin-right:12px}

.m-sidebar .m-nav-item:active{background:#f5f9ff}

.m-sidebar .m-nav-item .m-arrow{margin-left:auto;color:#ccc;font-size:12px}

.m-sidebar .m-nav-sub{background:#f8fafc;padding:8px 0}

.m-sidebar .m-nav-sub a{display:block;padding:10px 16px 10px 52px;font-size:14px;color:#555;border-bottom:1px solid #eef2f7}

.m-mask{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);z-index:10000;display:none}

.m-mask.show{display:block}

@media(max-width:768px){

  html,body{overflow-x:hidden;max-width:100%}

  .header_top h4{font-size:12px}

  .header_top .w1440{display:flex;align-items:center;justify-content:space-between}

  /* 手机端顶栏精简：隐藏公司全名与邮箱，只保留电话与语言 */

  .header_top h4{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:55%;font-size:12px}

  .header_top h4 img{display:none}

  .header_top h4 b:nth-of-type(2){display:none}

  .header_links{font-size:12px;flex-shrink:0}

  .header_links a{font-size:12px}

  /* 右上角汉堡按钮（三横线图标） */

  .m-menu-btn-top{display:flex!important;flex-direction:column;gap:4px;width:38px;height:38px;align-items:center;justify-content:center;cursor:pointer;border-radius:50%;background:#f2f6fc;border:1px solid #dde7f5;margin-left:8px;flex-shrink:0;transition:all .2s}

  .m-menu-btn-top:active{background:#e0ebfa}

  .m-btn-line{display:block;width:18px;height:2px;background:var(--brand,#0459d5);border-radius:2px}

  .header_nav .w1440{height:64px;gap:10px}

  .h_logo img{height:38px}

  .header_dl{display:none}

  .nav>li>h3>a{padding:0 10px;height:64px;line-height:64px;font-size:14px}

  .nav>li .sub{display:none}

  .header_nav .m-menu-btn{display:none!important}

  .header_dao .nav{display:none}

  /* 修复产品卡片横向溢出 */

  .tb-ps-card-wrap{min-width:0;width:100%}

  .tb-ps-card{width:100%;box-sizing:border-box}

  .tb-ps-grid{overflow:hidden}

  .tb-banner .banner-slide{min-height:320px}

  .tb-banner .w1440{flex-direction:column;padding:36px 20px}

  .tb-banner .ban-left h1{font-size:26px}

  .tb-banner .ban-right{flex:0 0 auto;width:100%}

  .tb-cases .case-card{flex:0 0 80%}

  .tb-site-search{flex:1 1 100%}

  .tb-ps-wrap{flex-direction:column}

  .tb-ps-list{flex:0 0 auto;flex-direction:row;overflow-x:auto}

  .tb-ps-item{flex:0 0 auto;padding:12px 16px}

  .tb-about::before{font-size:40px}

  .float-bar{display:none}

}

/* ===== 全面移动端适配 ===== */

@media(max-width:768px){

  .w1440{width:100%;padding:0 16px;box-sizing:border-box}

  /* 顶栏 */

  .top-bar{font-size:11px;padding:6px 0}

  .top-bar .tb-left span{margin-right:8px}

  .top-bar .tb-right{display:none}

  /* logo区 */

  .logo-area{padding:12px 0}

  .logo-area .logo{height:36px}

  .logo-area .slogan{font-size:11px}

  /* 导航 */

  .nav{overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}

  .nav>li>a{padding:0 10px;height:48px;line-height:48px;font-size:13px}

  /* banner */

  .page-banner{padding:28px 0 !important}

  .page-banner h1,.page-banner div[style*="font-size:28px"]{font-size:20px !important}

  .page-banner .crumbs{font-size:12px}

  /* 首页轮播 */

  .tb-banner{min-height:200px !important}

  .tb-banner .w1440{padding:24px 16px !important}

  .tb-banner .ban-left{padding:0}

  .tb-banner .ban-left h1{font-size:20px !important;line-height:1.4;margin-bottom:8px}

  .tb-banner .ban-left .sub{font-size:12px;margin-bottom:12px}

  .tb-banner .ban-left .en{display:none}

  .tb-banner .ban-btn{padding:8px 18px;font-size:13px}

  .tb-banner .ban-right{display:none}

  .tb-banner .ban-prev,.tb-banner .ban-next{width:32px;height:32px;font-size:18px}

  /* 区块标题 */

  .sec-title{font-size:18px}

  .sec-sub{font-size:12px}

  .tb-section-head{padding:24px 0 16px}

  .tb-section-head h2{font-size:20px}

  .tb-section-head .en{font-size:11px}

  .tb-section-head .desc{font-size:12px}

  /* 产品卡片网格 3列→2列 */

  .list-grid{grid-template-columns:repeat(2,1fr) !important;gap:10px}

  .product-grid{grid-template-columns:repeat(2,1fr) !important;gap:10px}

  .case-grid{grid-template-columns:repeat(2,1fr) !important;gap:10px}

  .tb-adv-grid{grid-template-columns:repeat(2,1fr) !important;gap:10px}

  .tb-cases{padding:20px 0}

  .case-card{border-radius:10px;overflow:hidden}

  .case-card .cap{font-size:12px;padding:8px}

  /* 产品系列 */

  .tb-prod-series{padding:20px 0}

  .tb-ps-wrap{flex-direction:column !important;gap:12px}

  .tb-ps-list{flex:0 0 auto !important;flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px;scrollbar-width:none;-ms-overflow-style:none}

  .tb-ps-list::-webkit-scrollbar{display:none}

  .tb-ps-item{flex:0 0 auto;padding:10px 16px;border-radius:20px;background:#f2f6fc;border:1px solid #e0e9f5}

  .tb-ps-item.active{background:linear-gradient(135deg,var(--brand,#0459d5),#0b6df2);color:#fff;border-color:transparent}

  .tb-ps-item.active .cn{color:#fff}

  .tb-ps-item.active .en{color:rgba(255,255,255,.7)}

  .tb-ps-item .cn{font-size:13px}

  .tb-ps-item .en{font-size:10px}

  .tb-ps-img{flex:1;min-height:180px;border-radius:10px;overflow:hidden}

  /* 优势卡片 */

  .tb-adv{padding:20px 0}

  .tb-adv-card{padding:16px 12px;border-radius:10px}

  .tb-adv-card .tb-adv-ic{font-size:28px;margin-bottom:8px}

  .tb-adv-card h4{font-size:14px;margin-bottom:6px}

  .tb-adv-card p{font-size:12px;line-height:1.6}

  /* 新闻左图右文→上下 */

  .news-row{flex-direction:column;background:#fff;border-radius:10px;overflow:hidden;margin-bottom:12px;box-shadow:0 2px 8px rgba(0,0,0,.04)}

  .news-row .nr-img{width:100%;height:160px;margin-bottom:0}

  .news-row .nr-body{flex:1;padding:12px}

  .news-row .nr-title{font-size:14px;line-height:1.5}

  .news-row .nr-desc{font-size:12px;margin-top:6px}

  .news-row .nr-meta{font-size:11px;margin-top:8px}

  /* 产品详情 左右→上下 */

  .pd-layout{flex-direction:column !important}

  .pd-left{flex:0 0 100% !important}

  .pd-right{flex:0 0 100% !important;margin-top:20px}

  .pd-img{height:240px}

  .pd-tags{flex-wrap:wrap}

  /* 关于页 左右→上下 */

  .about-layout{flex-direction:column !important}

  .about-sidebar{flex:0 0 100% !important;margin-bottom:20px}

  .about-main{flex:0 0 100% !important}

  .about-fields{grid-template-columns:repeat(2,1fr) !important}

  .about-products{flex-wrap:wrap}

  /* 联系页 左右→上下 */

  .contact-form-wrap{padding:20px 16px !important}

  /* 通用flex布局→上下 */

  [style*="display:flex"][style*="gap:28px"]{flex-direction:column !important}

  [style*="flex:0 0 380px"]{flex:0 0 100% !important}

  /* 页脚 4列→1列 */

  .footer-grid{grid-template-columns:1fr !important;gap:24px}

  .footer-col{text-align:left}

  /* 按钮 */

  .btn-primary,.btn-outline{padding:10px 24px;font-size:14px}

  /* 表单 */

  .cf-row{flex-direction:column;gap:0}

  .cf-row .cf-group{margin-bottom:16px}

  /* 文章内容 */

  .article-body{padding:20px 16px !important}

  .article-body h2{font-size:20px}

  .article-body h3{font-size:17px}

  .article-body p{font-size:14px;line-height:1.8}

  .article-body img{max-width:100%;height:auto}

  /* 404 */

  .error-404 .e404-num{font-size:64px !important}

  /* 选型工具横幅 */

  .selector-banner{padding:20px 16px !important}

  .selector-banner h3{font-size:18px !important}

  .selector-stats{flex-wrap:wrap;gap:12px}

  /* 在线咨询悬浮 */

  .float-chat{width:56px;height:56px;font-size:12px}

  /* ===== 首页产品展示 ===== */

  .tb-prod-show{padding:20px 0}

  .tb-ps-grid{grid-template-columns:repeat(2,1fr) !important;gap:10px}

  .tb-ps-card{border-radius:10px}

  .tb-ps-card .pimg{aspect-ratio:1/1}

  .tb-ps-card .pbody{padding:10px 12px;flex-direction:column;align-items:flex-start;gap:6px}

  .tb-ps-card .pbody h4{font-size:13px;line-height:1.4}

  .tb-ps-card .more{font-size:11px;padding:2px 8px}

  .tb-quick-inq{display:none}

  /* ===== 数据信任条 ===== */

  .tb-stats{padding:24px 0}

  .tb-stats-grid{grid-template-columns:repeat(2,1fr) !important;gap:16px}

  .tb-stat b{font-size:28px}

  .tb-stat span{font-size:12px}

  /* ===== 关于实一 ===== */

  .tb-about{padding:24px 0}

  .tb-about .w1440{flex-direction:column !important;gap:20px}

  .tb-about .ab-left{flex:1}

  .tb-about .ab-left h2{font-size:20px}

  .tb-about .ab-left p{font-size:13px;line-height:1.8}

  .tb-about .ab-right{flex:1;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}

  .tb-about .ab-card{padding:12px 8px;text-align:center}

  .tb-about .ab-card .ic{font-size:24px;margin-bottom:4px}

  .tb-about .ab-card b{font-size:12px}

  .tb-about .ab-card small{font-size:10px}

  .ab-tags{flex-wrap:wrap;gap:6px}

  .ab-tags span{font-size:11px;padding:4px 10px}

  /* ===== 行业应用 ===== */

  .tb-industry{padding:20px 0}

  .tb-ind-grid{grid-template-columns:repeat(4,1fr) !important;gap:8px}

  .tb-ind-item{padding:14px 8px;border-radius:10px}

  .tb-ind-item span{font-size:24px}

  .tb-ind-item b{font-size:11px;margin-top:6px}

  /* ===== 服务流程 ===== */

  .tb-service{padding:20px 0}

  .tb-svc-grid{grid-template-columns:repeat(2,1fr) !important;gap:10px}

  .tb-svc-card{padding:16px 12px;border-radius:10px}

  .tb-svc-card .num{font-size:24px}

  .tb-svc-card h4{font-size:14px}

  .tb-svc-card p{font-size:12px}

  /* ===== 新闻资讯 ===== */

  .tb-news{padding:20px 0}

  .tb-news-grid{grid-template-columns:1fr !important;gap:12px}

  /* ===== 联系CTA ===== */

  .tb-cta{padding:30px 16px}

  .tb-cta h2{font-size:20px}

  .tb-cta p{font-size:13px}

  .tb-cta .cta-btns{flex-direction:column;gap:10px}

  .tb-cta .cta-btn{width:100%;justify-content:center}

  /* ===== 页脚 ===== */

  .footer{padding:24px 0 80px}

  .footer-grid{grid-template-columns:1fr !important;gap:20px}

  .footer-col h4{font-size:15px;margin-bottom:10px}

  .footer-col p,.footer-col a{font-size:13px}

  .footer-bottom{font-size:11px;padding:12px 0}

  /* ===== 通用区块间距 ===== */

  section,div[class*="tb-"]{padding-left:0;padding-right:0}

  .w1440{padding:0 16px}

}

@media(max-width:480px){

  .top-bar .tb-left span:nth-child(2){display:none}

  .tb-banner{min-height:170px !important}

  .tb-banner .ban-left h1{font-size:17px !important}

  .tb-banner .ban-left .sub{font-size:11px}

  .list-grid{grid-template-columns:repeat(2,1fr) !important;gap:8px}

  .product-grid{grid-template-columns:repeat(2,1fr) !important;gap:8px}

  .case-grid{grid-template-columns:repeat(2,1fr) !important;gap:8px}

  .tb-adv-grid{grid-template-columns:1fr !important;gap:10px}

  .about-fields{grid-template-columns:repeat(2,1fr) !important}

  .header_nav .w1440{height:56px}

  .h_logo img{height:32px}

}

/* 下载中心 */

.download-center{padding:0 0 40px}

.dc-tabs{display:flex;align-items:center;justify-content:center;gap:0;padding:24px 0;border-bottom:1px solid #e8eef8;margin-bottom:32px;flex-wrap:wrap}

.dc-tab{font-size:16px;color:#666;padding:8px 20px;transition:.2s;text-decoration:none}

.dc-tab:hover{color:var(--brand,#0459d5)}

.dc-tab.active{color:var(--brand,#0459d5);font-weight:700}

.dc-sep{color:#ccc;font-size:16px}

.dc-layout{display:flex;gap:40px;flex-wrap:wrap}

.dc-left{flex:0 0 240px;min-width:0}

.dc-title{font-size:28px;font-weight:800;color:#193f70;margin:0 0 4px}

.dc-en{font-size:14px;color:var(--brand,#0459d5);letter-spacing:3px;font-weight:600;margin-bottom:12px}

.dc-line{width:50px;height:3px;background:var(--brand,#0459d5);margin-bottom:16px}

.dc-desc{font-size:14px;color:#666;line-height:1.8;margin:0}

.dc-right{flex:1;min-width:0}

.dc-item{display:flex;gap:20px;padding:20px 0;border-bottom:1px solid #f0f4fa;align-items:center}

.dc-item:last-child{border-bottom:none}

.dc-thumb{flex:0 0 128px;width:128px;height:88px;border-radius:8px;overflow:hidden;background:#f0f4fa;border:1px solid #e8eef8}

.dc-thumb img{width:100%;height:100%;object-fit:cover;display:block}

.dc-date{flex:0 0 60px;text-align:center;border-right:2px solid #e8eef8;padding-right:16px}

.dc-year{font-size:20px;font-weight:800;color:var(--brand,#0459d5);line-height:1.2}

.dc-md{font-size:13px;color:#999;margin-top:2px}

.dc-content{flex:1;min-width:0}

.dc-item-title{font-size:16px;font-weight:700;color:#193f70;text-decoration:none;display:block;margin-bottom:8px;transition:.2s}

.dc-item-title:hover{color:var(--brand,#0459d5)}

.dc-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px}

.dc-tag{display:inline-block;font-size:12px;line-height:1;padding:5px 10px;border-radius:20px;font-weight:600}

.dc-tag-pdf{background:#fff0f0;color:#d33;border:1px solid #ffd4d4}

.dc-tag-zip{background:#eef6ff;color:var(--brand,#0459d5);border:1px solid #cfe4ff}

.dc-tag-info{background:#f4f6f8;color:#64748b;border:1px solid #e2e8f0}

.dc-item-desc{font-size:13.5px;color:#888;line-height:1.8;margin:0 0 10px}

.dc-more{font-size:13px;color:var(--brand,#0459d5);text-decoration:none;font-weight:600}

.dc-more:hover{text-decoration:underline}

@media(max-width:768px){

  .dc-layout{flex-direction:column}

  .dc-left{flex:0 0 100%;margin-bottom:20px}

  .dc-tabs{padding:16px 0}

  .dc-tab{font-size:14px;padding:6px 12px}

  .dc-item{flex-direction:column;gap:10px}

  .dc-thumb{width:100%;height:160px;flex:0 0 auto}

  .dc-date{display:flex;gap:10px;align-items:center;border-right:none;border-bottom:1px solid #e8eef8;padding-right:0;padding-bottom:8px}

}

/* 分类标签 */

.cat-tabs{display:flex;align-items:center;justify-content:center;gap:0;padding:24px 0;border-bottom:1px solid #e8eef8;margin-bottom:28px;flex-wrap:wrap}

.cat-tab{font-size:16px;color:#666;padding:8px 20px;transition:.2s;text-decoration:none}

.cat-tab:hover{color:var(--brand,#0459d5)}

.cat-tab.active{color:var(--brand,#0459d5);font-weight:700}

.cat-sep{color:#ccc;font-size:16px}

/* 页面标题区 */

.page-title-area{margin-bottom:28px;padding:0 4px}

.pta-title{font-size:28px;font-weight:800;color:#193f70;margin:0 0 4px}

.pta-en{font-size:14px;color:var(--brand,#0459d5);letter-spacing:3px;font-weight:600;margin-bottom:12px}

.pta-line{width:50px;height:3px;background:var(--brand,#0459d5);margin-bottom:16px}

.pta-desc{font-size:14px;color:#666;line-height:1.8;margin:0}

@media(max-width:768px){

  .cat-tabs{padding:16px 0}

  .cat-tab{font-size:14px;padding:6px 12px}

  .pta-title{font-size:22px}

}