/*====================
 千丰彩科技 QFCTech v2.0
 WordPress 双语主题
 ====================*/
:root {
  --pri:#0066CC; --pri2:#004999; --pri-l:#3388DD;
  --dark:#1A1A1A; --gray:#F5F7FA; --gray2:#E8ECF1; --tx:#222; --tx2:#666; --tx3:#999;
  --bg:#FFFFFF; --radius:8px; --shadow:0 4px 20px rgba(0,0,0,.08); --max:1200px; --gap:32px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;color:var(--tx);line-height:1.7;background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--pri);text-decoration:none;transition:color .2s}
a:hover{color:var(--pri2)}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
.text-center{text-align:center}
.bg-gray{background:var(--gray)}
.section{padding:80px 0}
.section-title{font-size:2.25rem;text-align:center;margin-bottom:12px;color:var(--dark)}
.section-sub{text-align:center;color:var(--tx2);font-size:1.125rem;margin-bottom:48px;max-width:600px;margin-left:auto;margin-right:auto}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:var(--gap);align-items:center}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}

/* ====== Buttons ====== */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:var(--radius);font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s;border:2px solid transparent}
.btn-primary{background:var(--pri);color:#fff;border-color:var(--pri)}
.btn-primary:hover{background:var(--pri2);border-color:var(--pri2);color:#fff}
.btn-outline{background:transparent;color:#fff;border-color:#fff}
.btn-outline:hover{background:#fff;color:var(--pri)}

/* ====== Header ====== */
.site-header{position:sticky;top:0;z-index:1000;background:var(--bg);box-shadow:var(--shadow)}
.header-top{background:var(--dark);color:#fff;font-size:.875rem;padding:8px 0}
.header-top .container{display:flex;justify-content:space-between;align-items:center}
.header-info a{color:#ccc;margin-right:24px;font-size:.875rem}
.header-info a:hover{color:#fff}
.header-info i{margin-right:6px;color:var(--pri-l)}
.lang-switch a{color:#ccc;padding:2px 8px;border-radius:4px;font-size:.875rem}
.lang-switch a:hover,.lang-switch a.active{color:#fff;background:rgba(255,255,255,.15)}
.header-main{padding:14px 0}
.header-main .container{display:flex;justify-content:space-between;align-items:center}
.logo .logo-text{font-size:1.5rem;font-weight:700;color:var(--dark)}
.logo .logo-text:hover{color:var(--pri)}
.menu-trigger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.menu-trigger span{display:block;width:24px;height:2px;background:var(--dark);transition:all .3s}
.nav-list{display:flex;gap:8px;list-style:none}
.nav-list a{display:block;padding:8px 20px;color:var(--tx);font-weight:500;border-radius:var(--radius);transition:all .2s}
.nav-list a:hover,.nav-list .current-menu-item a{color:var(--pri);background:rgba(0,102,204,.08)}
.nav-old-site a{color:var(--pri)!important;font-weight:600}
.nav-old-site a i{margin-right:4px;font-size:.8rem}

/* ====== Hero ====== */
.hero{position:relative;height:600px;overflow:hidden;background:var(--dark)}
.hero-slides,.hero-slide{position:absolute;inset:0}
.hero-slide{display:flex;align-items:center;justify-content:center;background-size:cover;background-position:center;opacity:0;transition:opacity 1s ease}
.hero-slide.visible{opacity:1}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-text{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2;text-align:center;color:#fff;max-width:700px;width:100%;padding:0 20px}
.hero-text h1{font-size:3rem;margin-bottom:16px;text-shadow:0 2px 8px rgba(0,0,0,.3);animation:fadeInUp .8s ease both}
.hero-text p{font-size:1.25rem;margin-bottom:32px;text-shadow:0 1px 4px rgba(0,0,0,.3);animation:fadeInUp .8s .2s ease both}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;animation:fadeInUp .8s .4s ease both}
.hero-dots{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:3}
.hero-dot{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,.4);border:none;cursor:pointer;transition:all .3s}
.hero-dot.active,.hero-dot:hover{background:#fff;transform:scale(1.2)}
.hero-slide::after{content:'';position:absolute;inset:0;background:rgba(0,0,0,.35)}

/* ====== 动画关键帧 ====== */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeInUp-hero{from{opacity:0;transform:translate(-50%,calc(-50% + 30px))}to{opacity:1;transform:translate(-50%,-50%)}}
.hero-text{animation:fadeInUp-hero .8s ease both}
.hero-text h1,.hero-text p,.hero-btns{animation:none} /* 父级已有动画，子级不需要重复 */
.hero-text h1,.hero-text p,.hero-btns{opacity:1;transform:none} /* 重置 */

/* 滚动显示动画 */
.reveal{opacity:0;transform:translateY(40px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
.hero-dots{animation:fadeInUp .8s .6s ease both}

/* ====== Cards ====== */
.card{background:var(--bg);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.card:hover{transform:translateY(-6px);box-shadow:0 8px 30px rgba(0,0,0,.12)}
.card-img{position:relative;overflow:hidden;aspect-ratio:4/3}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.card:hover .card-img img{transform:scale(1.05)}
.card-tag{position:absolute;top:12px;left:12px;background:var(--pri);color:#fff;padding:4px 12px;border-radius:20px;font-size:.75rem;font-weight:600}
.card-body{padding:20px}
.card-body h3{font-size:1.125rem;margin-bottom:8px}
.card-body p{color:var(--tx2);margin-bottom:16px;font-size:.9rem}

/* ====== Features ====== */
.feature-box{text-align:center;padding:32px 20px;background:var(--bg);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .3s}
.feature-box:hover{transform:translateY(-6px)}
.feature-icon{width:64px;height:64px;margin:0 auto 16px;background:rgba(0,102,204,.1);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:var(--pri)}
.feature-box h4{font-size:1.125rem;margin-bottom:8px}
.feature-box p{color:var(--tx2);font-size:.9rem}

/* ====== About ====== */
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}
.check-list div{display:flex;align-items:center;gap:8px;font-weight:500;font-size:.925rem}
.check-list i{color:var(--pri)}

/* ====== Contact ====== */
.contact-section{background:var(--gray)}
.contact-info-list>div{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--gray2)}
.contact-info-list i{font-size:1.25rem;color:var(--pri);margin-top:4px}
.contact-info-list strong{display:block;margin-bottom:4px}
.contact-form{background:var(--bg);padding:32px;border-radius:var(--radius);box-shadow:var(--shadow)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-grp{margin-bottom:16px}
.form-grp label{display:block;margin-bottom:6px;font-weight:500;font-size:.9rem}
.form-grp input,.form-grp textarea{width:100%;padding:12px 16px;border:1px solid var(--gray2);border-radius:var(--radius);font-size:1rem;font-family:inherit;transition:border .2s;background:var(--bg)}
.form-grp input:focus,.form-grp textarea:focus{outline:none;border-color:var(--pri);box-shadow:0 0 0 3px rgba(0,102,204,.1)}
.form-msg{padding:12px;border-radius:var(--radius);margin-top:12px;display:none}
.form-msg.success{background:#d4edda;color:#155724;display:block}
.form-msg.error{background:#f8d7da;color:#721c24;display:block}

/* ====== 社交媒体快捷联系图标 ====== */
.social-contact-row{display:flex;gap:10px;flex-wrap:wrap}
.social-contact{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.125rem;color:#fff;transition:all .25s;text-decoration:none}
.social-contact:hover{transform:translateY(-4px);box-shadow:0 6px 16px rgba(0,0,0,.18);color:#fff}
.social-contact.whatsapp{background:#25D366}
.social-contact.whatsapp:hover{background:#1da851}
.social-contact.telegram{background:#0088cc}
.social-contact.telegram:hover{background:#006d9e}
.social-contact.wechat{background:#07C160}
.social-contact.wechat:hover{background:#05a04e}
.social-contact.facebook{background:#1877F2}
.social-contact.facebook:hover{background:#0d5dc7}
.social-contact.instagram{background:linear-gradient(45deg,#f09433,#e6683c,#dc2743,#cc2366,#bc1888)}
.social-contact.instagram:hover{opacity:.85}
.social-contact.tiktok{background:#000}
.social-contact.tiktok:hover{background:#ff0050}
.social-contact.twitter{background:#000}
.social-contact.twitter:hover{background:#1da1f2}
.social-contact.qq{background:#12B7F5}
.social-contact.qq:hover{background:#0d8ec2}
.social-contact.alibaba{background:#FF6A00}
.social-contact.alibaba:hover{background:#cc5500}

/* ====== Footer ====== */
.site-footer{background:var(--dark);color:#ccc;padding:60px 0 0}
.footer-cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:var(--gap);padding-bottom:40px}
.footer-col h4,.footer-col h5{color:#fff;margin-bottom:16px}
.footer-col h4{font-size:1.125rem}
.footer-col h5{font-size:1rem}
.footer-col p{line-height:1.8;margin-bottom:12px;font-size:.9rem}
.footer-col ul{list-style:none}
.footer-col ul li{padding:6px 0;font-size:.9rem}
.footer-col ul li i{margin-right:8px;color:var(--pri-l);width:16px;text-align:center}
.footer-col a{color:#ccc}
.footer-col a:hover{color:#fff}
.footer-social{display:flex;gap:12px;margin-top:12px}
.footer-social a{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;font-size:1rem;transition:all .2s}
.footer-social a:hover{background:var(--pri);color:#fff}
.footer-bottom{text-align:center;padding:20px 0;border-top:1px solid rgba(255,255,255,.1);font-size:.85rem}

/* ====== Page Banner ====== */
.page-banner{background:linear-gradient(135deg,var(--pri),#003366);color:#fff;padding:60px 0;text-align:center}
.page-banner h1{font-size:2.5rem;margin-bottom:8px}
.page-banner p{font-size:1.125rem;opacity:.9}
.page-banner a{color:rgba(255,255,255,.8)}
.page-banner a:hover{color:#fff}

/* ====== Filter ====== */
.filter-bar{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:40px}
.filter-btn{background:var(--gray);border:none;padding:10px 24px;border-radius:30px;cursor:pointer;font-size:.9rem;font-weight:500;transition:all .2s}
.filter-btn:hover,.filter-btn.active{background:var(--pri);color:#fff}

/* ====== Stats ====== */
.stat{padding:24px;text-align:center}
.stat strong{font-size:2.5rem;color:var(--pri);display:block;line-height:1}
.stat p{color:var(--tx2);margin-top:8px;font-size:.9rem}

/* ====== Site overlay ====== */
.site-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:999;opacity:0;pointer-events:none;transition:opacity .3s}
.site-overlay.active{opacity:1;pointer-events:auto}

/* ====== Responsive ====== */
@media (max-width:1024px){
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-cols{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .hero{height:480px}
  .hero-text h1{font-size:2rem}
  .hero-text p{font-size:1rem}
  .section{padding:50px 0}
  .section-title{font-size:1.75rem}
  .grid-2,.grid-3,.grid-4,.form-row{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:1fr 1fr}
  .check-list{grid-template-columns:1fr}
  .menu-trigger{display:flex;z-index:1002}
  .menu-trigger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
  .menu-trigger.active span:nth-child(2){opacity:0}
  .menu-trigger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
  .main-nav{position:fixed;top:0;right:-280px;width:280px;height:100vh;background:var(--bg);padding:80px 24px 24px;transition:right .3s;z-index:1001;box-shadow:-4px 0 20px rgba(0,0,0,.1)}
  .main-nav.active{right:0}
  .nav-list{flex-direction:column;gap:4px}
  .nav-list a{padding:12px 16px;font-size:1.1rem}
  .header-top{display:none}
}
@media (max-width:480px){
  .hero{height:380px}
  .hero-text h1{font-size:1.6rem}
  .footer-cols{grid-template-columns:1fr}
  .contact-form{padding:20px}
}