/*
Theme Name: Btav
Theme URI: https://www.botaian.cn/
Author: 天津博泰安工业阀门有限公司
Author URI: https://www.botaian.cn/
Description: 天津博泰安工业阀门有限公司企业官网主题，专注于展示工业阀门产品、生产制造实力与企业形象。主题支持自定义菜单、小工具、特色图片、自定义徽标与背景等 WordPress 标准功能。
Version: 1.0.2
Tested up to: 6.5
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: btav
Tags: one-column, two-columns, right-sidebar, custom-background, custom-colors, custom-header, custom-logo, custom-menu, editor-style, featured-images, footer-widgets, full-width-template, rtl-language-support, theme-options, threaded-comments, translation-ready, blog, e-commerce, portfolio
*/

/* ===== Reset ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB","WenQuanYi Micro Hei",Arial,sans-serif;font-size:14px;line-height:1.7;color:#333;background:#fff}
a{color:#c00;text-decoration:none;transition:color .2s}
a:hover{color:#e63946}
img{max-width:100%;height:auto;vertical-align:middle}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:600;line-height:1.3}

/* ===== Layout ===== */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.row{display:flex;flex-wrap:wrap;margin:0 -15px}
.row > [class*="col-"]{padding:0 15px}
.col-1{width:8.333%}.col-2{width:16.666%}.col-3{width:25%}.col-4{width:33.333%}.col-5{width:41.666%}.col-6{width:50%}.col-7{width:58.333%}.col-8{width:66.666%}.col-9{width:75%}.col-10{width:83.333%}.col-11{width:91.666%}.col-12{width:100%}

/* ===== Top Bar ===== */
.top-bar{background:#2a2a2a;color:#ccc;font-size:12px;padding:8px 0}
.top-bar .container{display:flex;justify-content:space-between;align-items:center}
.top-bar a{color:#ccc}
.top-bar a:hover{color:#ffce3a}
.top-bar .tb-left span{margin-right:20px}
.top-bar .tb-left i{color:#ffce3a;margin-right:6px}

/* ===== Header ===== */
.site-header{background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.06);position:sticky;top:0;z-index:100}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:18px 0}
.site-logo{display:flex;align-items:center;gap:12px}
.logo-mark{width:48px;height:48px;background:linear-gradient(135deg,#c00 0%,#8b0000 100%);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:20px;letter-spacing:-1px}
.logo-text h1{font-size:20px;color:#222;margin:0;letter-spacing:1px}
.logo-text p{font-size:12px;color:#888;letter-spacing:2px;margin-top:2px}

/* ===== Nav ===== */
.main-nav ul{display:flex;gap:4px}
.main-nav a{display:block;padding:10px 18px;color:#333;font-size:15px;font-weight:500;border-radius:4px}
.main-nav a:hover,.main-nav .current-menu-item a{background:#c00;color:#fff}
.main-nav ul ul{display:none}

/* ===== Hero Slider ===== */
.hero-slider{position:relative;overflow:hidden;background:#0a1a2a}
.slides{position:relative;height:520px}
.slide{position:absolute;inset:0;opacity:0;transition:opacity 1s ease}
.slide.active{opacity:1}
.slide img{width:100%;height:100%;object-fit:cover}
.slide-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.1) 0%,rgba(0,0,0,.4) 100%)}
.slider-dots{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5}
.slider-dots button{width:12px;height:12px;border-radius:50%;border:2px solid #fff;background:transparent;cursor:pointer;padding:0}
.slider-dots button.active{background:#ffce3a;border-color:#ffce3a}
.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;background:rgba(0,0,0,.4);border:none;color:#fff;font-size:24px;cursor:pointer;z-index:5;border-radius:4px}
.slider-arrow:hover{background:#c00}
.slider-arrow.prev{left:24px}
.slider-arrow.next{right:24px}

/* ===== Section ===== */
.section{padding:60px 0}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:32px;color:#222;position:relative;display:inline-block;padding-bottom:14px}
.section-title h2::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:60px;height:3px;background:#c00}
.section-title h2::before{content:"";position:absolute;left:50%;bottom:-4px;transform:translateX(-50%);width:12px;height:12px;background:#fff;border:3px solid #c00;border-radius:50%}
.section-title .en{display:block;color:#bbb;font-size:14px;font-weight:400;margin-top:10px;letter-spacing:3px;text-transform:uppercase}
.section-title p{color:#888;font-size:14px;margin-top:14px}

/* ===== About ===== */
.about-wrap{display:flex;gap:40px;align-items:center}
.about-img{flex:0 0 45%;position:relative}
.about-img img{border-radius:6px;box-shadow:0 10px 30px rgba(0,0,0,.12)}
.about-img .year-badge{position:absolute;right:-20px;bottom:20px;background:#c00;color:#fff;padding:18px 22px;border-radius:4px;box-shadow:0 8px 20px rgba(192,0,0,.3)}
.about-img .year-badge strong{display:block;font-size:34px;line-height:1}
.about-img .year-badge span{font-size:12px;letter-spacing:2px}
.about-content{flex:1}
.about-content h3{font-size:24px;color:#222;margin-bottom:16px}
.about-content p{color:#666;margin-bottom:14px;text-indent:2em}
.about-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px;padding-top:24px;border-top:1px solid #eee}
.stat-item strong{font-size:28px;color:#c00;display:block;font-family:Georgia,serif}
.stat-item span{font-size:13px;color:#888}

/* ===== Products ===== */
.products-section{background:#f6f6f6}
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.product-card{background:#fff;border-radius:6px;overflow:hidden;box-shadow:0 4px 12px rgba(0,0,0,.05);transition:transform .3s,box-shadow .3s}
.product-card:hover{transform:translateY(-6px);box-shadow:0 12px 28px rgba(0,0,0,.12)}
.product-card .img-wrap{height:220px;overflow:hidden;position:relative}
.product-card .img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.product-card:hover .img-wrap img{transform:scale(1.08)}
.product-card .img-wrap .tag{position:absolute;top:12px;left:12px;background:rgba(192,0,0,.9);color:#fff;font-size:12px;padding:4px 10px;border-radius:3px}
.product-card .info{padding:18px 20px}
.product-card .info h3{font-size:17px;color:#222;margin-bottom:8px}
.product-card .info p{font-size:13px;color:#888;line-height:1.6;height:42px;overflow:hidden}
.product-card .info a.more{display:inline-block;margin-top:12px;color:#c00;font-size:13px;border-bottom:1px solid transparent}
.product-card .info a.more:hover{border-color:#c00}

/* ===== Strength ===== */
.strength-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:30px}
.strength-item{text-align:center;padding:30px 20px;background:#fff;border-radius:6px;border:1px solid #eee;transition:all .3s}
.strength-item:hover{border-color:#c00;box-shadow:0 8px 20px rgba(192,0,0,.1)}
.strength-item .icon{width:64px;height:64px;margin:0 auto 18px;background:linear-gradient(135deg,#fff5f5,#ffe5e5);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:30px;color:#c00}
.strength-item h4{font-size:17px;color:#222;margin-bottom:10px}
.strength-item p{font-size:13px;color:#888;line-height:1.7}

/* ===== News ===== */
.news-wrap{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.news-main{display:flex;gap:20px;background:#fff;border-radius:6px;overflow:hidden;box-shadow:0 4px 12px rgba(0,0,0,.05)}
.news-main img{width:45%;object-fit:cover}
.news-main .content{padding:24px 24px 24px 0;display:flex;flex-direction:column;justify-content:center}
.news-main h3{font-size:18px;color:#222;margin-bottom:10px;line-height:1.5}
.news-main p{font-size:13px;color:#888;line-height:1.7}
.news-main .date{margin-top:14px;font-size:12px;color:#bbb}
.news-list{display:flex;flex-direction:column;gap:14px}
.news-item{display:flex;align-items:center;gap:18px;padding:16px 20px;background:#fff;border-radius:6px;box-shadow:0 2px 6px rgba(0,0,0,.04);transition:all .3s}
.news-item:hover{transform:translateX(4px);box-shadow:0 4px 12px rgba(192,0,0,.12)}
.news-item .date-box{flex:0 0 60px;text-align:center;padding:8px 0;background:#f6f6f6;border-radius:4px}
.news-item .date-box strong{display:block;font-size:22px;color:#c00;font-family:Georgia,serif}
.news-item .date-box span{font-size:11px;color:#888}
.news-item .txt h4{font-size:14px;color:#333;margin-bottom:6px;line-height:1.5}
.news-item .txt p{font-size:12px;color:#999;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ===== Contact ===== */
.contact-section{background:url('assets/images/contact-bg.jpg') center/cover no-repeat;position:relative;color:#fff}
.contact-section::before{content:"";position:absolute;inset:0;background:rgba(10,26,42,.85)}
.contact-section .container{position:relative;z-index:2}
.contact-section .section-title h2{color:#fff}
.contact-section .section-title .en{color:#ffce3a}
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px}
.contact-card{background:rgba(255,255,255,.08);backdrop-filter:blur(6px);padding:28px 22px;border-radius:6px;border:1px solid rgba(255,255,255,.12);text-align:center}
.contact-card .icon{font-size:34px;color:#ffce3a;margin-bottom:14px}
.contact-card h4{font-size:15px;color:#ffce3a;margin-bottom:10px;letter-spacing:2px}
.contact-card p{font-size:14px;color:#ddd;line-height:1.7}

/* ===== Links Bar ===== */
.links-bar{background:#f6f6f6;padding:30px 0;border-top:1px solid #eee}
.links-bar .container{display:flex;align-items:center;gap:30px}
.links-bar strong{color:#888;font-size:13px;flex-shrink:0}
.links-bar ul{display:flex;flex-wrap:wrap;gap:18px}
.links-bar a{color:#666;font-size:13px}
.links-bar a:hover{color:#c00}

/* ===== Footer ===== */
.site-footer{background:#1a1a1a;color:#aaa;padding:40px 0 0;font-size:13px}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:30px;border-bottom:1px solid #2a2a2a}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:30px;height:2px;background:#c00}
.footer-col p,.footer-col li{color:#aaa;margin-bottom:8px;line-height:1.7}
.footer-col a{color:#aaa}
.footer-col a:hover{color:#ffce3a}
.footer-col .qr{width:110px;height:110px;background:#fff;padding:6px;border-radius:4px;margin-top:10px;display:flex;align-items:center;justify-content:center;color:#333;font-size:12px;text-align:center}
.copyright{padding:18px 0;text-align:center;color:#777;font-size:12px}
.copyright a{color:#888;margin:0 6px}

/* ===== Page Content ===== */
.page-banner{background:#0a1a2a url('assets/images/page-banner.jpg') center/cover no-repeat;padding:80px 0;text-align:center;color:#fff;position:relative}
.page-banner::before{content:"";position:absolute;inset:0;background:rgba(0,0,0,.5)}
.page-banner .container{position:relative;z-index:2}
.page-banner h2{font-size:36px;margin-bottom:12px}
.breadcrumb{font-size:13px;color:#bbb}
.breadcrumb a{color:#ffce3a}
.page-body{padding:50px 0}
.page-body .container{display:grid;grid-template-columns:1fr 300px;gap:40px}
.entry-content{background:#fff;padding:30px;border-radius:6px;box-shadow:0 2px 8px rgba(0,0,0,.04);line-height:1.9;color:#444}
.entry-content h2{color:#c00;margin:20px 0 14px;font-size:22px}
.entry-content p{margin-bottom:14px}
.sidebar{display:flex;flex-direction:column;gap:20px}
.widget{background:#fff;padding:24px;border-radius:6px;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.widget h3{font-size:16px;color:#222;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid #c00;display:inline-block}
.widget ul li{padding:8px 0;border-bottom:1px dashed #eee;font-size:13px}
.widget ul li:last-child{border-bottom:0}
.widget ul li a{color:#555}

/* ===== Responsive ===== */
@media (max-width:980px){
  .product-grid,.strength-grid,.contact-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
  .news-wrap{grid-template-columns:1fr}
  .about-wrap{flex-direction:column}
  .page-body .container{grid-template-columns:1fr}
  .slides{height:360px}
}
@media (max-width:640px){
  .product-grid,.strength-grid,.contact-grid,.footer-top{grid-template-columns:1fr}
  .main-nav{display:none}
  .top-bar .tb-right{display:none}
  .slides{height:260px}
  .section{padding:40px 0}
  .section-title h2{font-size:24px}
}

/* ===== WordPress Core ===== */
.alignleft{float:left;margin:0 16px 16px 0}
.alignright{float:right;margin:0 0 16px 16px}
.aligncenter{display:block;margin:0 auto 16px}
.wp-caption{max-width:100%}
.wp-caption-text{font-size:12px;color:#888;text-align:center;padding:6px}
.screen-reader-text{clip:rect(1px,1px,1px,1px);position:absolute !important;height:1px;width:1px;overflow:hidden}
.sticky{display:block}
.gallery-caption{display:block}
.bypostauthor{display:block}