/* ============================================================
   滨州兴通筛网有限公司 官网样式
   工业风：深蓝 + 工业橙；响应式；交互动画
   ============================================================ */
:root{
  --primary:#0d4a82;
  --primary-dark:#0a3863;
  --primary-light:#1a63a8;
  --accent:#ff6a00;
  --accent-dark:#e85f00;
  --text:#2b3a4a;
  --text-light:#5f7083;
  --bg:#f4f7fa;
  --border:#e2e8f0;
  --white:#fff;
  --shadow:0 6px 24px rgba(13,74,130,.08);
  --shadow-hover:0 14px 36px rgba(13,74,130,.18);
  --radius:10px;
  --nav-h:78px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",Arial,sans-serif;color:var(--text);background:var(--white);line-height:1.7;font-size:15px;overflow-x:hidden}
a{color:var(--text);text-decoration:none;transition:color .25s,background .25s,opacity .25s}
a:hover{color:var(--accent)}
img{max-width:100%;display:block;border:0}
ul,ol{list-style:none}
h1,h2,h3,h4{font-weight:700;line-height:1.35;color:var(--primary-dark)}
.container{max-width:1240px;margin:0 auto;padding:0 20px}
.hidden-sm{display:inline}
section{position:relative}

/* ---------- 滚动入场动画 ---------- */
.reveal{opacity:0;transform:translateY(38px);transition:opacity .8s cubic-bezier(.22,.61,.36,1),transform .8s cubic-bezier(.22,.61,.36,1)}
.reveal.in{opacity:1;transform:none}
.reveal-delay-1{transition-delay:.12s}
.reveal-delay-2{transition-delay:.24s}
.reveal-delay-3{transition-delay:.36s}

/* ---------- 顶部条 ---------- */
.topbar{background:var(--primary-dark);color:#cfe2f3;font-size:13px;line-height:38px}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap}
.topbar-left span{margin-right:24px}
.topbar-right a{color:#cfe2f3;margin-left:24px}
.topbar-right a:hover{color:var(--accent)}

/* ---------- 导航 ---------- */
.site-header{background:var(--white);box-shadow:0 2px 14px rgba(0,0,0,.06);position:sticky;top:0;z-index:1000;transition:box-shadow .3s}
.site-header.scrolled{box-shadow:0 4px 20px rgba(0,0,0,.12)}
.header-inner{display:flex;align-items:center;height:var(--nav-h);gap:18px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:52px;height:52px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;font-weight:900;font-size:20px;display:flex;align-items:center;justify-content:center;border-radius:8px;letter-spacing:-1px}
.logo-text strong{display:block;font-size:19px;color:var(--primary-dark);line-height:1.2}
.logo-text small{display:block;font-size:11px;color:var(--text-light);font-weight:400}
.main-nav{margin-left:auto}
.main-nav>ul{display:flex;gap:4px}
.main-nav>ul>li{position:relative}
.main-nav>ul>li>a{display:block;padding:10px 14px;font-size:16px;font-weight:600;border-radius:6px;position:relative}
.main-nav>ul>li>a::after{content:"";position:absolute;left:50%;bottom:2px;width:0;height:3px;background:var(--accent);transition:all .3s;transform:translateX(-50%);border-radius:2px}
.main-nav>ul>li:hover>a::after,.main-nav>ul>li.active>a::after{width:60%}
.main-nav>ul>li.active>a{color:var(--primary)}
.submenu{position:absolute;top:100%;left:0;min-width:230px;background:var(--white);box-shadow:var(--shadow-hover);border-radius:8px;padding:8px 0;opacity:0;visibility:hidden;transform:translateY(14px);transition:all .28s;z-index:99}
.has-sub:hover .submenu{opacity:1;visibility:visible;transform:translateY(0)}
.submenu li a{display:block;padding:10px 18px;font-size:14px;white-space:nowrap}
.submenu li a:hover{background:var(--bg);color:var(--accent);padding-left:24px}
.header-cta{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;padding:10px 22px;border-radius:30px;font-weight:700;font-size:15px;white-space:nowrap;box-shadow:0 6px 16px rgba(255,106,0,.35);animation:pulse 2.4s infinite}
.header-cta:hover{color:#fff;transform:translateY(-2px)}
@keyframes pulse{0%,100%{box-shadow:0 6px 16px rgba(255,106,0,.35)}50%{box-shadow:0 6px 24px rgba(255,106,0,.6)}}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;margin-left:auto}
.nav-toggle span{width:26px;height:3px;background:var(--primary-dark);border-radius:2px;transition:.3s}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{background:var(--bg);border-bottom:1px solid var(--border);padding:12px 0;font-size:13px}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.breadcrumb li::after{content:"›";margin-left:8px;color:#b0c0d0}
.breadcrumb li:last-child::after{content:""}
.breadcrumb li span{color:var(--text-light)}

/* ---------- 首页 Banner ---------- */
.hero{position:relative;overflow:hidden;background:var(--primary-dark)}
.hero-slides{position:relative;height:520px}
.hero-slide{position:absolute;inset:0;display:flex;align-items:center;opacity:0;transition:opacity 1s ease;pointer-events:none;background-size:cover;background-position:center}
.hero-slide.active{opacity:1;pointer-events:auto}
/* 背景图遮罩：按要求大幅减弱，仅在左侧文字区保留极淡渐变，让上传的背景图清晰显示，去除磨砂/灰蒙蒙感 */
.hero-slide::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,40,70,.42) 0%,rgba(10,56,99,.16) 55%,rgba(13,74,130,0) 100%)}
.hero-content{position:relative;z-index:2;color:#fff;max-width:720px}
.hero-tag{display:inline-block;background:rgba(255,106,0,.92);color:#fff;padding:6px 16px;border-radius:30px;font-size:13px;margin-bottom:18px;letter-spacing:1px;text-shadow:0 1px 4px rgba(0,0,0,.25)}
.hero-content h1{color:#fff;font-size:44px;margin-bottom:16px;line-height:1.25;animation:heroUp .9s backwards;text-shadow:0 2px 14px rgba(0,0,0,.4)}
.hero-content h2{color:#fff;font-size:19px;font-weight:400;margin-bottom:26px;animation:heroUp .9s .15s backwards;text-shadow:0 1px 8px rgba(0,0,0,.35)}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;animation:heroUp .9s .3s backwards}
.hero-btn{padding:14px 34px;border-radius:30px;font-size:16px;font-weight:700;display:inline-block}
.hero-btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;box-shadow:0 10px 26px rgba(255,106,0,.4)}
.hero-btn.primary:hover{color:#fff;transform:translateY(-3px)}
.hero-btn.ghost{border:2px solid rgba(255,255,255,.7);color:#fff}
.hero-btn.ghost:hover{background:#fff;color:var(--primary)}
.hero-contact{margin-top:30px;display:flex;gap:28px;flex-wrap:wrap;animation:heroUp .9s .45s backwards}
.hero-contact .hc{background:rgba(10,56,99,.45);border:1px solid rgba(255,255,255,.22);border-radius:10px;padding:12px 20px}
.hero-contact .hc small{display:block;font-size:12px;color:#cfe3f4}
.hero-contact .hc strong{font-size:19px;color:#fff;letter-spacing:.5px}
.hero-dots{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5}
.hero-dots button{width:12px;height:12px;border-radius:50%;border:none;background:rgba(255,255,255,.4);cursor:pointer;transition:.3s}
.hero-dots button.active{background:var(--accent);width:32px;border-radius:6px}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.3);color:#fff;font-size:22px;cursor:pointer;transition:.3s;display:flex;align-items:center;justify-content:center}
.hero-arrow:hover{background:var(--accent)}
.hero-arrow.prev{left:24px}.hero-arrow.next{right:24px}
@keyframes heroUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:none}}
/* 无障碍：尊重系统“减少动态效果”设置，且保证任何情况下内容可见 */
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1!important;transform:none!important}
  .hero-content h1,.hero-content h2,.hero-btns,.hero-contact{animation:none!important;opacity:1!important;transform:none!important}
}

/* ---------- 数据条 ---------- */
.stat-bar{background:linear-gradient(120deg,var(--primary),var(--primary-light));color:#fff;padding:42px 0}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat-item .num{font-size:44px;font-weight:900;color:#fff;line-height:1}
.stat-item .num .unit{font-size:20px;font-weight:600;margin-left:2px}
.stat-item .label{margin-top:10px;color:#cfe2f3;font-size:15px}
.stat-item{border-right:1px solid rgba(255,255,255,.18)}
.stat-item:last-child{border-right:none}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
.section.bg{background:var(--bg)}
.section-head{text-align:center;margin-bottom:46px}
.section-head .sub{color:var(--accent);font-weight:700;letter-spacing:3px;font-size:13px;text-transform:uppercase}
.section-head h2{font-size:32px;margin:8px 0 14px;position:relative;display:inline-block}
.section-head h2::after{content:"";position:absolute;left:50%;bottom:-12px;transform:translateX(-50%);width:56px;height:4px;background:var(--accent);border-radius:2px}
.section-head p{color:var(--text-light);max-width:720px;margin:22px auto 0}

/* ---------- 首页简介 ---------- */
.about-home{display:grid;grid-template-columns:1.05fr 1fr;gap:50px;align-items:center}
.about-img{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.about-img img{width:100%;height:420px;object-fit:cover;transition:transform .8s}
.about-img:hover img{transform:scale(1.05)}
.about-img .badge{position:absolute;left:24px;bottom:24px;background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;padding:16px 26px;border-radius:10px;box-shadow:0 10px 26px rgba(0,0,0,.25)}
.about-img .badge strong{font-size:30px;display:block}
.about-text h2{font-size:30px;margin-bottom:18px}
.about-text .lead{color:var(--text-light);margin-bottom:22px}
.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:14px 22px;margin:26px 0}
.feature-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px}
.feature-list .check{color:var(--accent);font-weight:900;flex-shrink:0}
.btn-more{display:inline-block;margin-top:10px;background:var(--primary);color:#fff;padding:12px 32px;border-radius:30px;font-weight:600}
.btn-more:hover{background:var(--accent);color:#fff;transform:translateY(-2px)}

/* ---------- 产品卡片 ---------- */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.product-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:transform .35s,box-shadow .35s;display:flex;flex-direction:column}
.product-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover)}
.product-card .thumb{position:relative;overflow:hidden;height:230px;background:var(--bg)}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.product-card:hover .thumb img{transform:scale(1.1)}
.product-card .thumb .tag{position:absolute;top:12px;left:12px;background:var(--accent);color:#fff;font-size:12px;padding:4px 12px;border-radius:20px}
.product-card .pbody{padding:20px;flex:1;display:flex;flex-direction:column}
.product-card h3{font-size:18px;margin-bottom:8px}
.product-card .sub{color:var(--text-light);font-size:13px;flex:1}
.product-card .pfoot{margin-top:16px;display:flex;justify-content:space-between;align-items:center}
.product-card .pfoot a{color:var(--primary);font-weight:600;font-size:14px}
.product-card .pfoot a:hover{color:var(--accent)}
.product-card .pfoot a::after{content:" →";transition:margin .3s}
.product-card .pfoot a:hover::after{margin-left:6px}

/* 分类筛选 */
.cat-filter{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:38px}
.cat-filter a{padding:9px 22px;border-radius:30px;background:var(--white);border:1px solid var(--border);font-size:14px}
.cat-filter a:hover,.cat-filter a.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ---------- 优势板块 ---------- */
.advantage-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.advantage-card{background:var(--white);border-radius:var(--radius);padding:34px 28px;box-shadow:var(--shadow);border-top:4px solid var(--primary);transition:.35s}
.advantage-card:hover{transform:translateY(-8px);border-top-color:var(--accent);box-shadow:var(--shadow-hover)}
.advantage-card .icon{width:62px;height:62px;border-radius:14px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;font-size:28px;display:flex;align-items:center;justify-content:center;margin-bottom:18px;transition:.35s}
.advantage-card:hover .icon{background:linear-gradient(135deg,var(--accent),var(--accent-dark));transform:rotateY(360deg);transition:transform .7s}
.advantage-card h3{font-size:19px;margin-bottom:10px}
.advantage-card p{color:var(--text-light);font-size:14px}

/* ---------- 流程 ---------- */
.process-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:step}
.process-item{text-align:center;position:relative;padding:0 8px}
.process-item .pnum{width:64px;height:64px;border-radius:50%;background:var(--white);border:3px solid var(--primary);color:var(--primary);font-size:26px;font-weight:900;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;transition:.35s}
.process-item:hover .pnum{background:var(--accent);border-color:var(--accent);color:#fff;transform:scale(1.1)}
.process-item h4{font-size:16px;margin-bottom:6px}
.process-item p{font-size:12.5px;color:var(--text-light)}
.process-item:not(:last-child)::after{content:"→";position:absolute;top:20px;right:-14px;color:var(--primary);font-size:22px}

/* ---------- 新闻 / 案例卡片 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.35s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover)}
.news-card .thumb{height:200px;overflow:hidden;background:var(--bg)}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.news-card:hover .thumb img{transform:scale(1.08)}
.news-card .nbody{padding:20px;flex:1;display:flex;flex-direction:column}
.news-card .date{color:var(--accent);font-size:13px;font-weight:600;margin-bottom:8px}
.news-card h3{font-size:17px;margin-bottom:10px;line-height:1.5}
.news-card p{color:var(--text-light);font-size:13px;flex:1}
.news-card .more{margin-top:14px;color:var(--primary);font-size:13px;font-weight:600}

.case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.case-card{position:relative;border-radius:var(--radius);overflow:hidden;height:280px;box-shadow:var(--shadow)}
.case-card img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.case-card:hover img{transform:scale(1.1)}
.case-card .case-mask{position:absolute;inset:0;background:linear-gradient(0deg,rgba(8,40,70,.95) 0%,rgba(8,40,70,.3) 55%,transparent 100%);display:flex;flex-direction:column;justify-content:flex-end;padding:20px;color:#fff;transition:background .35s}
.case-card .case-mask .industry{color:#ffb37d;font-size:12px;margin-bottom:6px}
.case-card h3{color:#fff;font-size:16px;margin-bottom:6px}
.case-card p{color:#d3e2f1;font-size:12.5px;opacity:0;max-height:0;transition:.4s;overflow:hidden}
.case-card:hover .case-mask p{opacity:1;max-height:90px;margin-bottom:8px}

/* ---------- 资质 ---------- */
.cert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.cert-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:18px;transition:.35s;text-align:center}
.cert-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.cert-card .cert-img{border-radius:6px;overflow:hidden;background:var(--bg);margin-bottom:14px}
.cert-card .cert-img img{width:100%;height:300px;object-fit:contain;transition:transform .4s}
.cert-card:hover .cert-img img{transform:scale(1.04)}
.cert-card h3{font-size:16px}
.cert-card p{color:var(--text-light);font-size:12.5px;margin-top:6px}

/* ---------- CTA 咨询条 ---------- */
.cta-band{background:linear-gradient(120deg,var(--primary-dark),var(--primary-light));padding:48px 0;color:#fff}
.cta-band-inner{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:28px}
.cta-band p{color:#cfe2f3;margin-top:8px}
.cta-band .cta-btns{display:flex;gap:16px;flex-wrap:wrap}
.cta-band .btn-call{background:var(--accent);color:#fff;padding:15px 38px;border-radius:30px;font-size:18px;font-weight:800;display:inline-flex;align-items:center;gap:8px}
.cta-band .btn-call:hover{background:#fff;color:var(--primary)}

/* ---------- 内页通用 ---------- */
.page-hero{background:linear-gradient(120deg,var(--primary-dark),var(--primary-light));color:#fff;padding:54px 0;text-align:center}
.page-hero h1{color:#fff;font-size:34px;margin-bottom:10px}
.page-hero p{color:#cfe2f3}
.content-wrap{padding:60px 0}
.layout{display:grid;grid-template-columns:280px 1fr;gap:34px;align-items:start}
.side-nav{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;position:sticky;top:calc(var(--nav-h) + 20px)}
.side-nav .side-title{background:var(--primary);color:#fff;padding:18px 22px;font-size:17px;font-weight:700}
.side-nav ul li a{display:block;padding:14px 22px;border-bottom:1px solid var(--border);transition:.25s}
.side-nav ul li a:hover,.side-nav ul li a.active{background:var(--bg);color:var(--accent);padding-left:30px}
.side-box{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-top:20px}
.side-box h4{font-size:16px;margin-bottom:14px}
.side-box .tel{font-size:22px;color:var(--accent);font-weight:800;display:block;margin-bottom:6px}
.article{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:42px}
.article h2{font-size:24px;margin:28px 0 14px;padding-left:14px;border-left:5px solid var(--accent)}
.article h3{font-size:19px;margin:22px 0 10px;color:var(--primary)}
.article p{margin-bottom:14px;color:#3d4d5f}
.article ul,.article ol{margin:0 0 14px 22px}
.article ul li{list-style:disc;margin-bottom:8px}
.article ol li{list-style:decimal;margin-bottom:8px}
.article img{border-radius:8px;margin:16px auto}

/* 产品详情 */
.product-detail-top{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-bottom:40px}
.product-detail-img{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--bg)}
.product-detail-img img{width:100%;height:430px;object-fit:cover}
.product-detail-info h1{font-size:27px;margin-bottom:12px}
.product-detail-info .pd-sub{color:var(--accent);font-size:16px;margin-bottom:20px}
.product-detail-info table{width:100%;border-collapse:collapse;margin-bottom:24px}
.product-detail-info table td{padding:12px 14px;border:1px solid var(--border);font-size:14px}
.product-detail-info table td:first-child{background:var(--bg);width:110px;color:var(--text-light)}
.pd-contact{background:linear-gradient(120deg,#fff6ef,#ffe8d6);border:1px solid #ffd9bd;border-radius:var(--radius);padding:22px}
.pd-contact .tel{font-size:26px;color:var(--accent);font-weight:900}
.pd-contact .btns{display:flex;gap:12px;margin-top:14px;flex-wrap:wrap}
.pd-contact .btn{padding:12px 28px;border-radius:30px;font-weight:700}
.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-dark);color:#fff}
.btn-outline{border:2px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}

/* 新闻详情 */
.news-detail .news-title{font-size:28px;text-align:center;margin-bottom:14px}
.news-meta{text-align:center;color:var(--text-light);font-size:13px;padding-bottom:20px;border-bottom:1px solid var(--border);margin-bottom:28px}
.news-meta span{margin:0 12px}
.news-share{text-align:center;margin-top:40px;padding-top:20px;border-top:1px solid var(--border)}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px}
.related-grid a{background:var(--bg);border-radius:8px;padding:14px 18px;font-size:14px;transition:.25s}
.related-grid a:hover{background:var(--primary);color:#fff}

/* ---------- FAQ 手风琴 ---------- */
.faq-list{max-width:920px;margin:0 auto}
.faq-group-title{font-size:18px;margin:30px 0 14px;color:var(--primary-dark);display:flex;align-items:center;gap:10px}
.faq-group-title::before{content:"";width:6px;height:20px;background:var(--accent);border-radius:3px}
.faq-item{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:14px;overflow:hidden;transition:.3s}
.faq-item:hover{box-shadow:var(--shadow)}
.faq-q{padding:20px 24px;font-weight:700;font-size:16px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-q .qicon{color:var(--accent);font-size:22px;flex-shrink:0;transition:transform .35s}
.faq-item.open .faq-q{background:var(--bg);color:var(--primary)}
.faq-item.open .qicon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;padding:0 24px;color:var(--text-light)}
.faq-item.open .faq-a{max-height:420px;padding:0 24px 22px}

/* ---------- 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:36px}
.contact-info-card h2{font-size:24px;margin-bottom:24px}
.contact-row{display:flex;gap:16px;padding:16px 0;border-bottom:1px dashed var(--border)}
.contact-row .ci{width:46px;height:46px;border-radius:10px;background:var(--bg);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.contact-row h4{font-size:15px;color:var(--text-light);font-weight:400}
.contact-row .cv{font-size:17px;font-weight:700;color:var(--primary-dark)}
.contact-row .cv a{color:var(--accent)}
.form-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:36px;box-shadow:var(--shadow)}
.form-card h2{font-size:24px;margin-bottom:8px}
.form-card .fdesc{color:var(--text-light);margin-bottom:24px}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:14px;font-weight:600;margin-bottom:7px}
.form-row label .req{color:var(--accent)}
.form-row input,.form-row textarea,.form-row select{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:inherit;transition:.25s;background:#fbfcfe}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(13,74,130,.1)}
.form-row textarea{resize:vertical;min-height:120px}
.form-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.btn-submit{width:100%;padding:14px;background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:700;cursor:pointer;transition:.3s}
.btn-submit:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,106,0,.35)}
.form-tip{text-align:center;color:#16a34a;font-weight:700;margin-top:14px;display:none}
.form-tip.show{display:block}

/* ---------- 分页 ---------- */
.pagination{display:flex;justify-content:center;gap:8px;margin-top:44px;flex-wrap:wrap}
.pagination a,.pagination .current{padding:8px 15px;border:1px solid var(--border);border-radius:6px;font-size:14px}
.pagination a:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.pagination .current{background:var(--primary);color:#fff;border-color:var(--primary)}
.pagination .pageinfo{border:none;color:var(--text-light)}

/* ---------- 搜索框 ---------- */
.search-box{display:flex;gap:10px;margin-bottom:30px;max-width:560px}
.search-box input{flex:1;padding:12px 16px;border:1px solid var(--border);border-radius:30px;font-size:14px}
.search-box button{background:var(--primary);color:#fff;border:none;padding:0 26px;border-radius:30px;cursor:pointer;font-weight:600}

/* ---------- 页脚 ---------- */
.site-footer{background:#07294a;color:#aec4d9;font-size:14px}
.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;padding:60px 0 44px}
.footer-logo{color:#fff;font-size:20px;margin-bottom:12px}
.footer-slogan{color:var(--accent);font-weight:700;margin-bottom:14px}
.footer-brief{color:#8fa9c2;font-size:13px;margin-bottom:16px}
.footer-cert{display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:#7f9bb5}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px;position:relative;padding-left:12px}
.footer-col h4::before{content:"";position:absolute;left:0;top:4px;width:4px;height:16px;background:var(--accent);border-radius:2px}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{color:#aec4d9}
.footer-col ul li a:hover{color:var(--accent);padding-left:5px}
.contact-list li{display:flex;gap:10px;margin-bottom:13px;align-items:flex-start}
.contact-list .ci{flex-shrink:0}
.footer-bottom{background:#041c34;padding:18px 0;font-size:13px}
.footer-bottom-inner{display:flex;justify-content:center}
.copyright{display:flex;gap:18px;flex-wrap:wrap;align-items:center;justify-content:center;color:#7f9bb5}
.copyright a{color:#9db6cf}
.copyright a:hover{color:var(--accent)}
.copyright .beian{color:#9db6cf}
.beian-placeholder{color:#b06a4a}
.tech-support a{color:#ffb37d}

/* ---------- 悬浮按钮 ---------- */
.float-buttons{position:fixed;right:18px;bottom:80px;z-index:1500;display:flex;flex-direction:column;gap:10px}
.float-btn{width:64px;height:64px;border-radius:50%;background:var(--white);box-shadow:0 6px 20px rgba(0,0,0,.18);display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;position:relative;transition:.3s;text-align:center;overflow:visible}
.float-btn:hover{transform:translateY(-3px)}
.float-btn .fb-icon{font-size:20px;line-height:1}
.float-btn .fb-label{font-size:10px;color:var(--text-light);margin-top:3px}
.float-phone{background:linear-gradient(135deg,var(--accent),var(--accent-dark))}
.float-phone .fb-icon,.float-phone .fb-label{color:#fff}
.float-phone{animation:floatShake 2.5s infinite}
@keyframes floatShake{0%,92%,100%{transform:rotate(0)}94%{transform:rotate(-9deg)}96%{transform:rotate(9deg)}98%{transform:rotate(-6deg)}}
.float-wechat .wechat-pop{position:absolute;right:76px;top:50%;transform:translateY(-50%) translateX(16px);background:#fff;border-radius:10px;box-shadow:var(--shadow-hover);padding:16px;width:190px;text-align:center;opacity:0;visibility:hidden;transition:.3s}
.float-wechat:hover .wechat-pop{opacity:1;visibility:visible;transform:translateY(-50%) translateX(0)}
.wechat-pop img{width:150px;height:150px;margin:0 auto 8px;object-fit:cover}
.wechat-text{font-size:14px;color:var(--text)}
.wechat-text strong{color:var(--accent);font-size:18px}
.wechat-tip{font-size:11px;color:#a0aec0;margin-top:6px}
.float-top{opacity:0;pointer-events:none;transition:.3s}
.float-top.show{opacity:1;pointer-events:auto}

/* ---------- 后台样式 ---------- */
.admin-body{background:#f0f2f5}
.admin-login{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary-dark),var(--primary-light))}
.login-card{background:#fff;border-radius:14px;padding:44px 40px;width:400px;max-width:92vw;box-shadow:0 24px 60px rgba(0,0,0,.3)}
.login-card h1{text-align:center;font-size:22px;margin-bottom:6px}
.login-card .sub{text-align:center;color:#8c99a8;font-size:13px;margin-bottom:30px}
.login-card .form-row input{padding:13px 15px}
.admin-layout{display:flex;min-height:100vh}
.admin-sidebar{width:230px;background:#041c34;color:#aec4d9;flex-shrink:0;position:fixed;top:0;bottom:0;left:0;overflow-y:auto;z-index:100}
.admin-sidebar .brand{padding:22px 20px;color:#fff;font-weight:800;font-size:17px;border-bottom:1px solid rgba(255,255,255,.08)}
.admin-menu li a{display:flex;align-items:center;gap:10px;padding:13px 22px;color:#aec4d9;font-size:14px;border-left:3px solid transparent}
.admin-menu li a:hover,.admin-menu li a.active{background:#0a3055;color:#fff;border-left-color:var(--accent)}
.admin-menu .menu-group{padding:16px 22px 6px;font-size:11px;color:#5d7governance;color:#5d7790;letter-spacing:2px}
.admin-main{margin-left:230px;flex:1;min-width:0}
.admin-topbar{background:#fff;height:60px;display:flex;align-items:center;justify-content:space-between;padding:0 26px;box-shadow:0 1px 6px rgba(0,0,0,.06);position:sticky;top:0;z-index:90}
.admin-topbar .user-area{display:flex;gap:18px;align-items:center;font-size:14px}
.admin-topbar .user-area a{color:#66778a}
.admin-content{padding:24px}
.admin-card{background:#fff;border-radius:10px;padding:26px;margin-bottom:20px;box-shadow:0 1px 4px rgba(0,0,0,.05)}
.admin-card h2{font-size:18px;margin-bottom:20px;padding-bottom:14px;border-bottom:1px solid #eef1f5}
.stat-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:20px}
.stat-card{background:#fff;border-radius:10px;padding:22px;box-shadow:0 1px 4px rgba(0,0,0,.05);border-top:3px solid var(--primary)}
.stat-card .n{font-size:30px;font-weight:800;color:var(--primary-dark)}
.stat-card .l{color:#8c99a8;font-size:13px;margin-top:6px}
.admin-table{width:100%;border-collapse:collapse;font-size:14px}
.admin-table th{background:#f7f9fc;text-align:left;padding:13px 14px;font-weight:600;color:#5a6b7d;white-space:nowrap}
.admin-table td{padding:12px 14px;border-bottom:1px solid #eef1f5;vertical-align:middle}
.admin-table tr:hover td{background:#fafbfd}
.admin-table .thumb-cell img{width:80px;height:56px;object-fit:cover;border-radius:6px;border:1px solid #eef1f5}
.btn{display:inline-block;padding:8px 18px;border-radius:6px;font-size:13px;cursor:pointer;border:none;font-family:inherit}
.btn-blue{background:var(--primary);color:#fff}.btn-blue:hover{background:var(--primary-light);color:#fff}
.btn-orange{background:var(--accent);color:#fff}.btn-orange:hover{background:var(--accent-dark);color:#fff}
.btn-gray{background:#eef1f5;color:#5a6b7d}.btn-gray:hover{background:#e2e8f0}
.btn-red{background:#f5455c;color:#fff}.btn-red:hover{background:#dd2a42}
.btn-sm{padding:5px 12px;font-size:12px}
.admin-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;flex-wrap:wrap;gap:12px}
.admin-form .form-row{margin-bottom:18px;max-width:760px}
.admin-form label{display:block;font-weight:600;margin-bottom:7px;font-size:14px}
.admin-form .hint{color:#98a5b3;font-size:12px;margin-top:4px}
.admin-form input[type=text],.admin-form input[type=password],.admin-form input[type=email],.admin-form input[type=number],.admin-form select,.admin-form textarea{width:100%;padding:11px 14px;border:1px solid #dce3ea;border-radius:6px;font-size:14px;font-family:inherit}
.admin-form textarea{min-height:120px;resize:vertical}
.admin-form .form-2col{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.upload-preview{margin-top:10px;position:relative;display:inline-block}
.upload-preview img{max-width:220px;max-height:150px;border:1px solid #dce3ea;border-radius:6px;background:#f7f9fc}
.img-library{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
.img-lib-item{position:relative;border:1px solid #e2e8f0;border-radius:8px;overflow:hidden;background:#f7f9fc}
.img-lib-item img{width:100%;height:120px;object-fit:cover}
.img-lib-item .meta{padding:8px;font-size:11px;color:#8c99a8;word-break:break-all}
.img-lib-item .del{position:absolute;top:6px;right:6px;background:rgba(245,69,92,.92);color:#fff;border:none;border-radius:50%;width:24px;height:24px;cursor:pointer;font-size:12px}
.tag-switch{display:inline-flex;align-items:center;gap:6px;font-size:13px}
.alert{padding:13px 18px;border-radius:8px;margin-bottom:18px;font-size:14px}
.alert-success{background:#eafaf0;color:#16a34a;border:1px solid #b9ebcb}
.alert-error{background:#fef0f0;color:#f5455c;border:1px solid #fbc4c4}
.alert-info{background:#eef6ff;color:var(--primary);border:1px solid #c6def7}
.editor-toolbar{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:8px}
.editor-toolbar button{padding:6px 12px;background:#f0f3f7;border:1px solid #dce3ea;border-radius:4px;cursor:pointer;font-size:13px}
.editor-toolbar button:hover{background:#e2e8f0}
.content-editor{width:100%;min-height:320px;padding:14px;border:1px solid #dce3ea;border-radius:6px;font-size:14px;line-height:1.8}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .product-grid,.advantage-grid,.news-grid,.cert-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:30px}
  .stat-item:nth-child(2){border-right:none}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px}
  .process-grid{grid-template-columns:repeat(3,1fr);gap:28px}
  .process-item:nth-child(3)::after{display:none}
  .stat-cards{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .hidden-sm{display:none}
  .topbar-left span{margin-right:12px;font-size:12px}
  .topbar-right a{margin-left:12px;font-size:12px}
  .nav-toggle{display:flex}
  .header-cta{display:none}
  .main-nav{position:fixed;top:0;right:-100%;width:78%;max-width:320px;height:100vh;background:#fff;box-shadow:-10px 0 40px rgba(0,0,0,.2);transition:right .35s;padding-top:70px;z-index:999}
  .main-nav.open{right:0}
  .main-nav>ul{flex-direction:column;gap:0;padding:10px}
  .main-nav>ul>li>a{padding:14px 16px;border-bottom:1px solid #eef1f5}
  .main-nav .submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:#f7f9fc;border-radius:0;padding:0;display:none}
  .has-sub.open .submenu{display:block}
  .hero-slides{height:460px}
  .hero-content h1{font-size:30px}
  .hero-content h2{font-size:16px}
  .hero-contact{gap:12px}
  .hero-arrow{display:none}
  .section{padding:52px 0}
  .section-head h2{font-size:25px}
  .about-home,.contact-grid,.product-detail-top{grid-template-columns:1fr;gap:28px}
  .product-grid,.advantage-grid,.news-grid,.cert-grid,.case-grid{grid-template-columns:1fr}
  .feature-list{grid-template-columns:1fr}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .process-item:nth-child(2)::after{display:none}
  .footer-main{grid-template-columns:1fr;gap:28px}
  .layout{grid-template-columns:1fr}
  .side-nav{position:static}
  .article{padding:24px}
  .form-grid-2{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .float-buttons{right:10px;bottom:60px}
  .float-btn{width:54px;height:54px}
  .float-btn .fb-label{font-size:9px}
  .float-wechat .wechat-pop{right:62px;width:160px}
  .admin-sidebar{transform:translateX(-100%);transition:transform .3s}
  .admin-sidebar.open{transform:translateX(0)}
  .admin-main{margin-left:0}
  .stat-cards{grid-template-columns:1fr 1fr}
  .admin-form .form-2col{grid-template-columns:1fr}
}