/* ══════════════════════════════════════════════════════════════
   全站框架样式（主题 assets/）
   - 板块00 全局基础 + 顶栏 + 导航 + 页尾 + 浮动联系
   - 内页通用组件（page-hero / crumb / cta-band）
   - 图片路径已按本文件所在 css/ 目录调整为 ../images/
   ══════════════════════════════════════════════════════════════ */

/* —— 设计变量 —— */
:root{
  --primary:#11519d;          /* 主色 */
  --primary-dark:#0d3f7a;     /* 主色-深 */
  --primary-deeper:#092c56;   /* 主色-最深（深色背景用） */
  --primary-light:#e9f2fc;    /* 主色-浅底 */
  --accent:#f5a623;           /* 点缀色（HOT角标等） */
  --text:#333f4d;             /* 正文色 */
  --text-light:#7a8794;       /* 次要文字 */
  --line:#e4ebf3;             /* 分割线 */
  --font-head:"Montserrat","Open Sans","Bahnschrift","Segoe UI Semibold","Microsoft YaHei",sans-serif;
  --font-body:"Montserrat","Open Sans",Arial,"Segoe UI","Noto Sans SC","Microsoft YaHei",sans-serif;
  --gap:75px;                 /* 板块间距 */
  --shadow:0 10px 30px rgba(17,81,157,.10);
}

/* —— 字体（images/fonts/，离线可用） —— */
@font-face{font-family:"Open Sans";src:url('../images/fonts/OpenSans-400.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:"Open Sans";src:url('../images/fonts/OpenSans-700.woff2') format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:"Open Sans";src:url('../images/fonts/OpenSans-800.woff2') format('woff2');font-weight:800;font-display:swap}
@font-face{font-family:"Montserrat";src:url('../images/fonts/Montserrat-400.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:"Montserrat";src:url('../images/fonts/Montserrat-600.woff2') format('woff2');font-weight:600;font-display:swap}
@font-face{font-family:"Montserrat";src:url('../images/fonts/Montserrat-700.woff2') format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:"Pacifico";src:url('../images/fonts/Pacifico-400.woff2') format('woff2');font-weight:400;font-display:swap}

/* —— 重置与通用 —— */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--text);font-size:18px;line-height:1.7;background:#fff;overflow-x:hidden;font-weight:400}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:1600px;margin:0 auto;padding:0 24px;overflow-wrap:anywhere}
.section{padding:var(--gap) 0}
.nd-body,.page-content{min-width:0;overflow-wrap:anywhere}
.nd-body img,.page-content img{height:auto}
.nd-body video,.page-content video,.nd-body iframe,.page-content iframe{max-width:100%}
.nd-body table,.page-content table,.nd-body pre,.page-content pre{display:block;max-width:100%;overflow-x:auto}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
/* 热卖/证书/优势/客户评价板块：背景收进 1600px 以内，圆角卡片式展示 */
/* .hot 收窄为 section.hot，避免误伤视频页 <span class="vc-tag hot"> 标签 */
section.hot,.cert,.stats,.testimonial{max-width:1600px;margin:0 auto;border-radius:24px;overflow:hidden}
@media (max-width:768px){
  section.hot,.cert,.stats,.testimonial{border-radius:0}
}
/* 板块标题（通用，各板块复用） */
.sec-head{text-align:center;margin-bottom:48px}
.sec-head .tag{display:inline-block;font-family:"Pacifico","Brush Script MT","Segoe Script",cursive;font-size:42px;line-height:1.05;color:#f5a623;margin-bottom:0;position:relative}
.sec-head .tag::after{content:"";display:block;width:200px;height:53px;margin:-14px auto 4px;background:url('../images/icons/underline-brush.png') no-repeat center/100% 100%}
.sec-head h1,.sec-head h2{font-family:var(--font-head);font-size:40px;font-weight:700;color:#000;letter-spacing:.5px}
.sec-head p{color:var(--text-light);margin-top:10px;max-width:640px;margin-left:auto;margin-right:auto}
/* 滚动显现动画（渐进增强：默认可见，JS 就绪后隐藏待触发） */
.reveal{transition:opacity .7s ease,transform .7s ease}
.js-ready .reveal:not(.in){opacity:0;transform:translateY(28px)}
.reveal.in{opacity:1;transform:none}
/* —— 共用组件：产品卡片 —— */
.p-card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.3s}
.p-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.p-img{display:block;aspect-ratio:1/1;background:#f7fafd;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.p-img img{width:100%;height:100%;object-fit:cover;transition:.5s}
.p-card:hover .p-img img{transform:scale(1.06)}
.p-badge{position:absolute;top:12px;left:12px;background:var(--accent);color:#fff;font-size:11.5px;font-weight:700;letter-spacing:1px;padding:4px 11px;border-radius:16px}
.p-info{padding:14px 16px 17px}
.p-model{display:inline-block;font-family:"Montserrat","Open Sans",Arial,"Segoe UI",sans-serif;font-size:16px;font-weight:700;color:#000;background:#f5f5f5;padding:4px 12px;border-radius:12px;margin-bottom:8px}
.p-info h4{font-size:17px;font-weight:600;color:#000;line-height:1.45}
/* 共用组件：缺图类目占位卡片 */
.coming-soon{border:1.6px dashed #c6d6ea;border-radius:14px;background:#fbfdff;min-height:210px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:26px}
.coming-soon img{width:44px;height:44px;opacity:.45;margin-bottom:12px}
.coming-soon h4{font-size:15.5px;color:var(--text);font-weight:600}
.coming-soon p{font-size:15px;color:var(--text-light);margin-top:6px}
/* —— 全局响应式 —— */
@media (max-width:768px){
  :root{--gap:56px}
  .container{padding:0 16px}
  .sec-head{margin-bottom:32px}
  .sec-head h1,.sec-head h2{font-size:29px}
  .sec-head p{font-size:16px}
  .sec-head .tag{font-size:34px}
  .p-info{padding:12px 10px 14px}
  .p-model{font-size:13px;padding:4px 8px;max-width:100%}
  .p-info h4{font-size:14px}
}

/* —— 顶部信息栏 —— */
.topbar{background:var(--primary-deeper);color:#dce8f6;font-size:13.5px;padding:8px 0}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;max-width:none;margin:0;padding:0 60px}
.topbar .tb-left{display:flex;gap:22px;flex-wrap:wrap}
.topbar .tb-item{display:flex;align-items:center;gap:7px}
.topbar img{width:14px;height:14px}
.topbar a:hover{color:#fff}
.tb-social{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.tb-social img{width:20px;height:20px;opacity:.85;transition:.25s}
.tb-social a:hover img{opacity:1;transform:translateY(-2px)}
@media (max-width:768px){
  .topbar .tb-social{display:none}
  .topbar .container{padding:0 16px}
}

/* —— 导航栏 —— */
.header{position:sticky;top:0;z-index:100;background:#fff;box-shadow:0 2px 14px rgba(9,44,86,.08)}
.header .container{display:flex;align-items:center;gap:48px;height:86px;max-width:none;margin:0;padding:0 60px}
.logo{display:flex;align-items:center;flex-shrink:0}
.logo img{height:70px;width:auto}
.nav{display:flex;align-items:center;gap:4px}
.nav>li{position:relative}
.nav>li>a{display:flex;align-items:center;gap:5px;padding:26px 14px;font-size:17px;font-weight:600;color:#000;transition:.25s;text-transform:capitalize;position:relative;white-space:nowrap}
.nav>li>a::after{content:"";position:absolute;left:14px;right:14px;bottom:20px;height:3px;border-radius:2px;background:#da3636;transform:scaleX(0);transform-origin:left;transition:transform .3s ease}
.nav>li>a:hover::after{transform:scaleX(1)}
.nav>li>a:hover{color:#000}
.nav>li>a .caret{width:8px;height:8px;opacity:.55;transition:.25s}
.nav>li:hover>a .caret{transform:rotate(180deg)}
.dropdown{position:absolute;top:100%;left:0;min-width:240px;background:#fff;border-radius:10px;box-shadow:0 18px 45px rgba(9,44,86,.16);padding:10px;opacity:0;visibility:hidden;transform:translateY(12px);transition:.28s}
.nav>li:hover .dropdown,.nav>li:focus-within .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{display:block;padding:10px 14px;border-radius:7px;font-size:14.5px;color:var(--text);transition:.2s}
.dropdown a:hover{background:var(--primary-light);color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:8px;margin-left:auto;flex-shrink:0}
.icon-btn{width:40px;height:40px;border:none;background:var(--primary-light);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:.25s}
.icon-btn:hover{background:var(--primary)}
.icon-btn img{width:17px;height:17px}
.icon-btn:hover img{filter:brightness(0) invert(1)}
.hamburger{display:none;width:44px;height:44px;border:none;background:var(--primary-light);border-radius:8px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.hamburger span{width:20px;height:2.5px;background:var(--primary);border-radius:2px;transition:.3s}
.hamburger.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
/* 搜索浮层 */
body.search-open{overflow:hidden}
.search-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(9,44,86,.94);z-index:200;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:opacity .3s;padding:24px}
.search-overlay.show{opacity:1;visibility:visible}
.search-box{width:min(640px,100%);display:flex}
.search-box input{flex:1;min-width:0;background:none;border:none;color:#fff;font-size:22px;padding:14px 6px}
.search-box input::placeholder{color:#9fb6d4}
.search-box button{flex-shrink:0;min-width:44px;min-height:44px;background:none;border:none;cursor:pointer;padding:10px}
.search-box button img{width:26px;height:26px}
.search-close{position:absolute;top:20px;right:24px;width:44px;height:44px;border:0;background:none;color:#fff;font-size:34px;cursor:pointer;line-height:1}
@media (max-width:1400px){
  .topbar .container{padding:0 24px}
  .header .container{gap:24px;padding:0 24px}
  .nav>li>a{font-size:16px;padding:26px 10px}
}
@media (max-width:1200px){
  .hamburger{display:flex}
  .topbar .container{padding:0 16px}
  .header .container{height:76px;padding:0 16px;gap:12px}
  .logo img{height:58px}
  .nav-actions .icon-btn{width:44px;height:44px}
  .nav{position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:14px 22px 24px;box-shadow:0 20px 40px rgba(9,44,86,.18);max-height:var(--nav-space,calc(100dvh - 76px));overflow:auto;overscroll-behavior:contain;opacity:0;visibility:hidden;transform:translateY(-12px);transition:opacity .3s,transform .3s;z-index:99}
  .nav.open{opacity:1;visibility:visible;transform:none}
  .nav>li>a{padding:13px 6px;border-bottom:1px solid var(--line);white-space:normal}
  .nav>li>a::after{display:none}
  .dropdown{position:static;box-shadow:none;padding:0 0 6px 18px;opacity:1;visibility:inherit;transform:none;min-width:0}
  .nav:not(.open)>li .dropdown{visibility:hidden}
  .dropdown a{min-height:44px}
  .nav>li:hover .dropdown{transform:none}
}
@media (max-width:480px){
  .logo img{height:52px}
  .search-overlay{padding:16px}
  .search-box input{font-size:16px}
  .search-close{top:12px;right:12px}
}

/* —— 页尾 —— */
.footer{background:var(--primary-deeper);color:#c3d4e8;font-size:14.5px}
.footer-main{padding:64px 0 46px;display:grid;grid-template-columns:1.3fr 0.9fr 0.9fr 1.1fr 1.35fr;gap:40px}
.footer h4{font-family:var(--font-head);color:#fff;font-size:16.5px;font-weight:700;margin-bottom:20px;position:relative;padding-bottom:10px}
.footer h4::after{content:"";position:absolute;left:0;bottom:0;width:32px;height:3px;background:var(--accent);border-radius:2px}
.footer .f-logo img{height:58px;margin-bottom:16px}
.footer .f-intro{font-size:13.8px;color:#9fb3cb;line-height:1.8;margin-bottom:20px}
.f-links li{margin-bottom:11px}
.f-links a{color:#c3d4e8;transition:.25s;display:inline-flex;align-items:center;gap:8px}
.f-links a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);opacity:.7}
.f-links a:hover{color:#fff;padding-left:4px}
.f-contact li{display:flex;gap:12px;margin-bottom:15px;align-items:flex-start}
.f-contact img{width:17px;height:17px;margin-top:4px;flex-shrink:0}
.f-contact a{color:#c3d4e8}
.f-contact a:hover{color:#fff}
.f-social{display:flex;gap:11px;margin-top:20px;flex-wrap:wrap}
.f-inquiry h4{margin-bottom:14px}
.footer-main>*{min-width:0}
.f-form,.f-form form{display:flex;flex-direction:column;gap:11px}
.f-form p{margin:0;display:flex;flex-direction:column}
.f-form label,.f-form .wpcf7-form-control-wrap{display:block}
.f-form input,.f-form textarea{display:block;width:100%;min-width:0;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:8px;padding:11px 14px;color:#fff;font-size:13.5px;font-family:var(--font-body);outline:none;transition:.25s;resize:none}
.f-form .wpcf7-not-valid-tip{color:#ffb4b4;font-size:12px}
.f-form .wpcf7 form .wpcf7-response-output{margin:4px 0 0;color:#9db2c8;font-size:12px;border:1px solid rgba(255,255,255,.2);border-radius:6px;padding:6px 10px}
.f-form .form-submit,.ct-form .form-submit{position:relative}
.f-form .wpcf7-spinner,.ct-form .wpcf7-spinner{position:absolute;top:50%;right:12px;margin:-12px 0 0}
.f-form .inquiry-label,.ct-form .inquiry-label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.f-form input::placeholder,.f-form textarea::placeholder{color:#9db2c8}
.f-form input:focus,.f-form textarea:focus{border-color:#da3636;background:rgba(255,255,255,.12)}
.f-form button,.f-form input[type=submit]{background:#da3636;color:#fff;border:none;border-radius:8px;padding:12px;font-size:16px;font-weight:700;font-family:Arial,sans-serif;cursor:pointer;transition:.25s}
.f-form button:hover,.f-form input[type=submit]:hover{background:#c22b2b;transform:translateY(-1px)}
.f-social img{width:34px;height:34px;border-radius:8px;transition:.25s}
.f-social a:hover img{transform:translateY(-3px)}
.f-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:15px;color:#8aa3bf}
.f-bottom a{color:#c3d4e8}
@media (max-width:1200px){
  .footer-main{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
}
@media (max-width:768px){
  .footer-main{grid-template-columns:minmax(0,1fr);gap:30px}
  .f-form input,.f-form textarea{font-size:16px}
  .f-social a{display:flex;align-items:center;justify-content:center;min-width:44px;min-height:44px}
  .f-social{gap:8px}
}

/* —— 浮动联系 & 回到顶部 —— */
.float-contact{position:fixed;right:16px;top:50%;transform:translateY(-50%);z-index:90;display:flex;flex-direction:column;gap:10px}
.float-contact a{width:46px;height:46px;border-radius:50%;background:#b0b0b0;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,0,0,.22);transition:.25s;position:relative}
.float-contact a:hover{background:var(--accent);transform:scale(1.08)}
.float-contact img{width:20px;height:20px}
.float-contact .tip{position:absolute;right:56px;top:50%;transform:translateY(-50%);background:#fff;color:var(--primary-deeper);font-family:var(--font-body);font-size:15px;font-weight:600;padding:7px 14px;border-radius:8px;box-shadow:var(--shadow);white-space:nowrap;opacity:0;visibility:hidden;transition:.25s}
.float-contact a:hover .tip,.float-contact a:focus-visible .tip,.back-top:hover .tip,.back-top:focus-visible .tip{opacity:1;visibility:visible}
.back-top{position:relative;width:46px;height:46px;border:none;border-radius:50%;background:#282828;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(40,40,40,.35);transition:.3s}
.back-top:hover{background:#111}
.back-top img{width:18px;height:18px}
@media (max-width:768px){
  .float-contact{top:auto;bottom:26px;transform:none;gap:8px}
  .float-contact a,.back-top{width:42px;height:42px}
  .float-contact img{width:18px;height:18px}
  .back-top img{width:16px;height:16px}
  /* 触屏无 hover：点击/聚焦时显示 tip */
  .float-contact .tip{display:none}
  .back-top{opacity:0;visibility:hidden}
  .back-top.show{opacity:1;visibility:visible}
}

/* ═══════════ 内页通用组件 ═══════════ */
/* 导航当前页高亮 */
.nav>li>a.active{color:var(--primary)}
.nav>li>a.active::after{transform:scaleX(1)}
.nav>li>a.active .caret{transform:rotate(180deg)}
/* 内页页头：深蓝渐变 + 白标题 + 面包屑 */
.page-hero{background:url('../images/neiyebeijing.jpg') no-repeat center/cover;color:#fff;padding:78px 0 70px;position:relative;overflow:hidden}
.page-hero .container{position:relative;z-index:2}
.page-hero .ph-tag{font-family:"Pacifico","Brush Script MT","Segoe Script",cursive;font-size:34px;line-height:1.1;color:#ffc966;display:block;margin-bottom:4px}
.page-hero h1{font-family:var(--font-head);font-size:40px;font-weight:700;color:#fff;line-height:1.2}
.page-hero p{margin-top:12px;color:#b8cbe2;max-width:760px;font-size:16.5px}
.crumb{margin-top:18px;display:flex;align-items:center;flex-wrap:wrap;gap:9px;font-size:15px;color:#9fb6d4}
.crumb a{color:#dce8f6;transition:.2s}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.55}
.crumb .cur{color:#ffc966;font-weight:600}
@media (max-width:768px){
  .page-hero{padding:52px 0 46px}
  .page-hero h1{font-size:30px}
  .page-hero .ph-tag{font-size:27px}
  .page-hero p{font-size:15px}
}
/* 通用 CTA 横幅 */
.cta-band{background:#e7e7e7;border-radius:24px;color:#000;text-align:center;padding:52px 34px;position:relative;overflow:hidden;margin-top:75px}
.cta-band::before{content:"";position:absolute;right:-90px;top:-110px;width:300px;height:300px;border-radius:50%;background:rgba(0,0,0,.05)}
.cta-band::after{content:"";position:absolute;left:-60px;bottom:-140px;width:260px;height:260px;border-radius:50%;background:rgba(0,0,0,.04)}
.cta-band h2{font-family:var(--font-head);font-size:32px;font-weight:700;line-height:1.3;margin-bottom:12px;position:relative;z-index:2}
.cta-band p{color:#3c3c3c;max-width:640px;margin:0 auto 28px;font-size:16px;position:relative;z-index:2}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;position:relative;z-index:2}
.btn-red{display:inline-block;background:#da3636;color:#fff;font-weight:700;padding:14px 38px;border-radius:30px;transition:.3s}
.btn-red:hover{background:#c22b2b;transform:translateY(-2px)}
.btn-ghost{display:inline-block;border:1.5px solid #000;color:#000;font-weight:600;padding:12px 32px;border-radius:30px;transition:.3s}
.btn-ghost:hover{background:#000;color:#fff}
@media (max-width:768px){
  .cta-band{padding:36px 20px;margin-top:var(--gap)}
  .cta-band h2{font-size:25px}
  .cta-actions>a{max-width:100%;padding:12px 22px;font-size:16px}
  .topbar .tb-left{gap:4px 18px}
  .topbar .tb-item{min-width:0;overflow-wrap:anywhere}
  .topbar .tb-item img{flex-shrink:0}
}
@media (max-width:480px){
  .cta-actions{gap:12px}
  .cta-actions>a{width:100%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}