/* ===========================================================
   沧州新伟塑业有限公司官网 - 公共样式
   =========================================================== */
:root{
  --c-primary:#0a3d7c;      /* 主色 深蓝 */
  --c-primary-2:#0e5aa7;    /* 次主色 */
  --c-blue:#1470cc;         /* 亮蓝 */
  --c-sky:#2aa7e8;
  --c-orange:#f08a24;       /* 强调色 橙 */
  --c-text:#333;
  --c-text-2:#666;
  --c-text-3:#999;
  --c-bg:#f5f7fb;
  --c-line:#e5e9f0;
  --c-white:#fff;
  --radius:10px;
  --shadow:0 6px 24px rgba(10,45,90,.10);
  --shadow-lg:0 16px 48px rgba(10,45,90,.16);
  --font:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",Arial,"Helvetica Neue",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--c-text);background:var(--c-white);font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color .25s}
ul{list-style:none}
button{font-family:inherit;cursor:pointer}
.container{width:min(1200px,92%);margin:0 auto}
.section-pd{padding:72px 0}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-primary);color:#cfd9ea;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:36px;flex-wrap:wrap}
.topbar a{color:#cfd9ea}
.topbar a:hover{color:#fff}
.topbar .tb-right span{margin-left:20px}
.topbar .tb-right i{font-style:normal;margin-right:6px}

/* ---------- 页头导航 ---------- */
.site-header{position:sticky;top:0;z-index:999;background:var(--c-white);box-shadow:0 2px 10px rgba(10,45,90,.06);transition:box-shadow .3s}
.site-header.is-sticky{box-shadow:var(--shadow)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:78px}
.logo{display:flex;align-items:center;gap:12px}
.logo-mark{width:46px;height:46px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--c-primary),var(--c-sky));color:#fff;font-weight:700;font-size:20px}
.logo-txt b{display:block;font-size:20px;color:var(--c-primary);line-height:1.2;letter-spacing:1px}
.logo-txt small{font-size:11px;letter-spacing:3px;color:var(--c-text-3);text-transform:uppercase}
.nav{display:flex;gap:6px}
.nav a{position:relative;display:block;padding:10px 18px;font-size:16px;color:#333;font-weight:600}
.nav a::after{content:"";position:absolute;left:18px;right:18px;bottom:2px;height:3px;border-radius:2px;background:var(--c-orange);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.nav a:hover,.nav a.active{color:var(--c-primary-2)}
.nav a.active::after,.nav a:hover::after{transform:scaleX(1)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px}
.nav-toggle span{width:26px;height:3px;border-radius:2px;background:var(--c-primary)}

/* ---------- 页内标题横幅 ---------- */
.page-banner{position:relative;color:#fff;text-align:center;padding:88px 0 76px;overflow:hidden;
  background:linear-gradient(100deg,#072c5c 0%,#0a4d9e 55%,#1470cc 100%)}
.page-banner h1{font-size:38px;letter-spacing:2px;margin-bottom:8px}
.page-banner p{color:#cfe1f5;font-size:15px}
.breadcrumb{margin-top:16px;font-size:13px;color:#9cc0e8}
.breadcrumb a:hover{color:#fff}

/* ---------- 首页 Hero ---------- */
.hero{position:relative;height:600px;overflow:hidden;background:#072c5c}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1.2s ease;visibility:hidden}
.hero-slide.active{opacity:1;visibility:visible}
.hero-slide img{width:100%;height:100%;object-fit:cover}
.hero-slide .veil{position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,25,55,.86) 0%,rgba(5,25,55,.55) 45%,rgba(5,25,55,.15) 100%)}
.hero-caption{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);color:#fff}
.hero-caption .eyebrow{display:inline-block;padding:5px 16px;border:1px solid rgba(255,255,255,.5);border-radius:30px;font-size:13px;letter-spacing:3px;margin-bottom:18px;color:#ffe2bd}
.hero-caption h2{font-size:46px;line-height:1.3;letter-spacing:1px;margin-bottom:14px;text-shadow:0 2px 14px rgba(0,0,0,.25)}
.hero-caption p{max-width:620px;color:#dfe9f6;font-size:16px;margin-bottom:30px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 30px;border-radius:40px;font-size:15px;font-weight:600;transition:.3s}
.btn-primary{background:var(--c-orange);color:#fff;box-shadow:0 8px 20px rgba(240,138,36,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(240,138,36,.45)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.75);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--c-primary)}
.hero-dots{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);display:flex;gap:10px}
.hero-dots button{width:12px;height:12px;border-radius:50%;border:0;background:rgba(255,255,255,.4);transition:.3s}
.hero-dots button.on{background:var(--c-orange);width:30px;border-radius:8px}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:46px;height:46px;border-radius:50%;border:1px solid rgba(255,255,255,.45);background:rgba(255,255,255,.08);color:#fff;font-size:20px;line-height:1;transition:.3s}
.hero-arrow:hover{background:var(--c-orange);border-color:var(--c-orange)}
.hero-arrow.prev{left:26px}.hero-arrow.next{right:26px}

/* ---------- 通用区块标题 ---------- */
.sec-head{text-align:center;max-width:720px;margin:0 auto 46px}
.sec-head .tag{display:inline-block;color:var(--c-orange);font-weight:700;letter-spacing:4px;font-size:14px;margin-bottom:8px}
.sec-head h2{font-size:32px;color:var(--c-primary);position:relative;padding-bottom:16px;letter-spacing:1px}
.sec-head h2::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:56px;height:4px;border-radius:2px;background:linear-gradient(90deg,var(--c-orange),#f6b46a)}
.sec-head p{color:var(--c-text-2);margin-top:12px}
.sec-head.left{text-align:left;margin-left:0}
.sec-head.left h2::after{left:0;transform:none}

/* ---------- 数据条 ---------- */
.stat-band{background:linear-gradient(90deg,var(--c-primary),var(--c-blue));color:#fff}
.stats{display:grid;grid-template-columns:repeat(4,1fr);text-align:center;padding:44px 0}
.stat b{display:block;font-size:42px;line-height:1.2;font-weight:700}
.stat b i{font-style:normal}
.stat span{color:#cfe1f5;font-size:14px}
.stat+.stat{border-left:1px solid rgba(255,255,255,.18)}

/* ---------- 首页简介 ---------- */
.about-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:52px;align-items:center}
.about-imgs{position:relative}
.about-imgs .img-main{border-radius:14px;overflow:hidden;box-shadow:var(--shadow-lg)}
.about-imgs .img-exp{position:absolute;right:-14px;bottom:-20px;width:150px;height:150px;border-radius:16px;background:var(--c-orange);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:0 14px 30px rgba(240,138,36,.4)}
.about-imgs .img-exp b{font-size:42px;line-height:1}
.about-imgs .img-exp span{font-size:13px;margin-top:6px}
.about-text h3{font-size:27px;color:var(--c-primary);line-height:1.5;margin-bottom:18px}
.about-text p{color:var(--c-text-2);margin-bottom:14px;text-align:justify}
.about-list{margin:18px 0 26px;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.about-list li{color:var(--c-text-2)}
.about-list li::before{content:"✔";color:var(--c-orange);margin-right:8px;font-size:12px}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary-2);font-weight:600}
.link-more:hover{color:var(--c-orange)}
.link-more .arr{transition:transform .3s}
.link-more:hover .arr{transform:translateX(4px)}

/* ---------- 产品卡片 ---------- */
.prod-band{background:var(--c-bg)}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.prod-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:0 4px 14px rgba(10,45,90,.06);transition:.35s;display:flex;flex-direction:column}
.prod-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.prod-thumb{height:220px;overflow:hidden;position:relative}
.prod-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.prod-card:hover .prod-thumb img{transform:scale(1.08)}
.prod-thumb .num{position:absolute;left:0;bottom:0;background:var(--c-orange);color:#fff;font-size:13px;padding:4px 14px;border-radius:0 12px 0 0;letter-spacing:2px}
.prod-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.prod-body h3{font-size:19px;color:var(--c-primary);margin-bottom:8px}
.prod-body p{color:var(--c-text-2);font-size:14px;flex:1}
.prod-body .prod-tags{margin-top:12px;display:flex;flex-wrap:wrap;gap:6px}
.prod-body .prod-tags span{font-size:12px;color:var(--c-blue);background:#eef6ff;padding:2px 10px;border-radius:20px}

/* ---------- 优势 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.adv-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:30px 22px;text-align:center;transition:.3s}
.adv-card:hover{border-color:var(--c-sky);box-shadow:var(--shadow);transform:translateY(-6px)}
.adv-ico{width:64px;height:64px;margin:0 auto 16px;border-radius:18px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(20,112,204,.12),rgba(42,167,232,.12));font-size:30px}
.adv-card h3{color:var(--c-primary);margin-bottom:8px;font-size:17px}
.adv-card p{color:var(--c-text-2);font-size:13.5px}

/* ---------- 新闻列表 ---------- */
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-item{background:#fff;border-radius:var(--radius);padding:22px 24px;border:1px solid var(--c-line);transition:.3s;display:flex;flex-direction:column}
.news-item:hover{border-color:var(--c-sky);box-shadow:var(--shadow);transform:translateY(-5px)}
.news-item .date{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.news-item .date .d{font-size:26px;font-weight:700;color:var(--c-orange);line-height:1}
.news-item .date .y{color:var(--c-text-3);font-size:12px;line-height:1.3}
.news-item h3{font-size:16.5px;color:var(--c-primary);margin-bottom:8px;line-height:1.5}
.news-item p{color:var(--c-text-2);font-size:13.5px;flex:1}

/* ---------- CTA ---------- */
.cta-band{background:linear-gradient(100deg,var(--c-orange) 0%,#f6a64b 100%);color:#fff;text-align:center;padding:54px 0}
.cta-band h2{font-size:28px;letter-spacing:1px;margin-bottom:10px}
.cta-band p{opacity:.95;margin-bottom:26px}
.btn-white{background:#fff;color:var(--c-orange)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(0,0,0,.18)}

/* ---------- 页脚 ---------- */
.site-footer{background:#08244d;color:#b9c9df}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:54px 0 40px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:20px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:30px;height:3px;background:var(--c-orange)}
.footer-col p{font-size:13.5px;color:#b9c9df;line-height:2;margin-bottom:6px}
.footer-col p i{font-style:normal;color:var(--c-orange);margin-right:8px}
.footer-col ul li{padding:6px 0}
.footer-col ul a{font-size:13.5px}
.footer-col ul a:hover{color:#fff;padding-left:4px}
.footer-brand .f-logo{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand .f-logo b{color:#fff;font-size:20px}
.footer-brand .f-logo span{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;font-size:13px;text-align:center;color:#7e93b4}
.footer-bottom a{color:#7e93b4}
.footer-bottom a:hover{color:#fff}

/* ---------- 页面内部通用 ---------- */
.prose h3{color:var(--c-primary);font-size:20px;margin:8px 0 14px}
.prose p{color:var(--c-text-2);margin-bottom:14px;text-align:justify}
.info-table{width:100%;border-collapse:collapse;font-size:14px}
.info-table td{padding:12px 16px;border:1px solid var(--c-line);vertical-align:top}
.info-table td:first-child{background:var(--c-bg);color:var(--c-primary);font-weight:600;width:170px;white-space:nowrap}
.info-table td:last-child{color:var(--c-text-2)}

/* 小工具 */
.badge{display:inline-block;background:#eef6ff;color:var(--c-blue);font-size:12px;padding:3px 12px;border-radius:20px;margin-right:8px}
.sec-sub{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:8px}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:st}
.step{position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:26px 20px 20px;transition:.3s}
.step:hover{box-shadow:var(--shadow);transform:translateY(-5px)}
.step::before{counter-increment:st;content:"0" counter(st);font-size:38px;font-weight:700;color:rgba(20,112,204,.16);line-height:1}
.step h4{color:var(--c-primary);font-size:16px;margin:8px 0 6px}
.step p{color:var(--c-text-2);font-size:13px}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:34px}
.contact-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:38px}
.c-card{background:var(--c-bg);border-radius:var(--radius);padding:26px 20px;text-align:center}
.c-card .ci{width:56px;height:56px;border-radius:50%;margin:0 auto 14px;background:linear-gradient(135deg,var(--c-primary),var(--c-sky));color:#fff;font-size:24px;display:flex;align-items:center;justify-content:center}
.c-card h3{color:var(--c-primary);font-size:16px;margin-bottom:6px}
.c-card p{color:var(--c-text-2);font-size:13.5px}

/* ---------- 资讯弹窗 ---------- */
.news-modal{position:fixed;inset:0;z-index:2000;background:rgba(6,25,55,.55);display:flex;align-items:center;justify-content:center;padding:20px}
.news-modal[hidden]{display:none}
.news-modal-box{background:#fff;border-radius:16px;max-width:720px;width:100%;max-height:82vh;overflow:auto;padding:36px 40px;position:relative;box-shadow:0 24px 60px rgba(0,0,0,.3)}
.news-modal-close{position:absolute;right:14px;top:10px;font-size:34px;line-height:1;color:#aaa;background:none;border:0;transition:color .2s}
.news-modal-close:hover{color:var(--c-orange)}
@media(max-width:640px){.news-modal-box{padding:28px 22px}}

/* 滚动渐显 */
[data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
[data-reveal].in{opacity:1;transform:none}

/* ---------- 产品详情行 ---------- */
.prod-row{display:grid;grid-template-columns:1fr 1.05fr;gap:48px;align-items:center;padding:30px 0}
.prod-row+.prod-row{border-top:1px dashed var(--c-line)}
.prod-row .p-img{border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
.prod-row .p-img img{width:100%;height:300px;object-fit:cover;transition:transform .6s}
.prod-row:hover .p-img img{transform:scale(1.04)}
.prod-row h3{font-size:23px;color:var(--c-primary);margin-bottom:12px;display:flex;align-items:center;gap:10px}
.prod-row h3 .pn{color:var(--c-orange);font-size:14px;letter-spacing:1px;background:#fff3e6;padding:3px 12px;border-radius:20px}
.prod-row p{color:var(--c-text-2);margin-bottom:14px;text-align:justify}
.prod-row ul{margin-bottom:16px}
.prod-row ul li{color:var(--c-text-2);font-size:14px;padding:4px 0;position:relative;padding-left:18px}
.prod-row ul li::before{content:"▸";position:absolute;left:0;color:var(--c-orange)}

/* 工商信息表所在面板 */
.panel{background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:34px 36px;box-shadow:0 4px 16px rgba(10,45,90,.05)}

/* 页面间隔 */
.mb-24{margin-bottom:24px}
.split-2{display:grid;grid-template-columns:1fr 1fr;gap:30px}

/* 联系方式主图区 */
.contact-hero{position:relative;border-radius:14px;overflow:hidden;height:300px}
.contact-hero img{width:100%;height:100%;object-fit:cover}
.contact-hero .veil{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,40,90,.8),rgba(8,40,90,.2))}
.contact-hero .txt{position:absolute;left:40px;top:50%;transform:translateY(-50%);color:#fff}
.contact-hero .txt h2{font-size:28px;margin-bottom:10px}
.contact-hero .txt p{color:#dbe7f5}

/* ---------- 响应式 ---------- */
@media(max-width:980px){
  .nav{position:fixed;top:0;right:-300px;width:280px;height:100vh;background:#fff;flex-direction:column;padding:70px 30px 30px;box-shadow:-8px 0 30px rgba(0,0,0,.1);transition:right .35s;z-index:1000}
  .nav.open{right:0}
  .nav a{padding:12px 4px;border-bottom:1px solid var(--c-line)}
  .nav a::after{display:none}
  .nav-toggle{display:flex;z-index:1001}
  .mobile-mask{position:fixed;inset:0;background:rgba(4,20,45,.45);z-index:999;opacity:0;visibility:hidden;transition:.3s}
  .mobile-mask.on{opacity:1;visibility:visible}
  .stats{grid-template-columns:repeat(2,1fr);gap:22px}
  .stat+.stat{border-left:0}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .news-list{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .sec-sub{grid-template-columns:1fr}
}
@media(max-width:640px){
  .section-pd{padding:52px 0}
  .hero{height:480px}
  .hero-caption h2{font-size:30px}
  .prod-grid,.adv-grid,.news-list,.steps,.contact-cards,.stats{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr}
  .topbar .tb-right{display:none}
  .sec-head h2{font-size:25px}
  .page-banner h1{font-size:28px}
}