:root{
  --primary:#c7443e; --primary-dark:#a93226; --primary-light:#e74c3c;
  --dark:#1a2530; --gray:#6b7a8d; --light:#f6f8fa; --border:#e8edf2;
}
*{margin:0;padding:0;box-sizing:border-box;}
body{ color:#2c3e50;background:#fff;line-height:1.7;}
a{text-decoration:none;color:inherit;}
.container{max-width:1240px;margin:0 auto; }

/* ===== Top Bar ===== */
.topbar{background:var(--dark);color:#c8d2dc;font-size:13px;padding:6px 0;}
.topbar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;}
.topbar a{color:#c8d2dc;margin-right:18px;transition:.3s;}
.topbar a:hover{color:#fff;}
.topbar .tb-right{display:flex;align-items:center;gap:14px;}

/* ===== Header / Nav ===== */
.header{position:sticky;top:0;z-index:999;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);box-shadow:0 2px 18px rgba(0,0,0,.06);}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;}
.logo{display:flex;align-items:center;gap:12px;}
.logo-mark{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;box-shadow:0 6px 16px rgba(199,68,62,.35);}
.logo-text{line-height:1.2;}
.logo-text b{font-size:20px;letter-spacing:.5px;color:var(--dark);}
.logo-text b span{color:var(--primary);}
.logo-text small{font-size:11px;color:var(--gray);letter-spacing:2px;}
.menu{display:flex;align-items:center;gap:4px;}
.menu>li{list-style:none;position:relative;}
.menu>li>a{display:flex;align-items:center;gap:5px;padding:26px 16px;font-size:15px;color:#34495e;font-weight:500;transition:.3s;position:relative;}
.menu>li>a::after{content:"";position:absolute;left:16px;right:16px;bottom:14px;height:3px;border-radius:3px;background:var(--primary);transform:scaleX(0);transition:.3s;}
.menu>li>a:hover,.menu>li.active>a{color:var(--primary);}
.menu>li>a:hover::after,.menu>li.active>a::after{transform:scaleX(1);}
.menu>li>a .fa-chevron-down{font-size:10px;opacity:.6;}
.dropdown{position:absolute;top:100%;left:0;min-width:190px;background:#fff;border-radius:10px;box-shadow:0 12px 36px rgba(0,0,0,.14);padding:8px;opacity:0;visibility:hidden;transform:translateY(12px);transition:.3s;border:1px solid var(--border);}
.menu>li:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0);}
.dropdown a{display:block;padding:10px 16px;border-radius:8px;font-size:14px;color:#455a64;transition:.2s;}
.dropdown a:hover{background:#fdecea;color:var(--primary);}
.nav-right{display:flex;align-items:center;gap:14px;}

/* 汉堡按钮 + 移动登录（桌面隐藏，移动端显示） */
.menu-login-m{display:none;}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;padding:10px;background:#fff;border:1px solid #e8edf2;border-radius:8px;cursor:pointer;flex-shrink:0;}
.nav-toggle span{display:block;height:2px;background:#34495e;border-radius:2px;transition:.3s;}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.active span:nth-child(2){opacity:0;}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 移动端 header（与首页一致） */
@media(max-width:992px){
  .nav-toggle{display:flex !important; visibility:visible !important; opacity:1 !important; width:42px !important; height:42px !important; min-width:42px !important; min-height:42px !important; background:#fff !important; border:1px solid #ccc !important; border-radius:8px !important; padding:10px !important; box-sizing:border-box !important;}
  .header .nav{padding:0 12px;}
  .nav-toggle span{display:block !important; width:100% !important; height:2px !important; flex-shrink:0 !important; background:#333 !important; border-radius:2px !important;}
  .lang-name{display:none !important;}
  .lang-arrow{display:none !important;}
  .lang-switcher{font-size:52px !important;padding:0 4px !important;gap:0 !important;line-height:1;}
  .lang-btn{width:42px !important;height:42px !important;justify-content:center !important;padding:0 !important;gap:0 !important;font-size:16px !important;}
  .lang-btn .fa-globe{font-size:22px !important;}
  .lang-dropdown .lang-item i{display:none !important;}
  .lang-dropdown .lang-item span{display:inline !important;}
  .menu{display:flex;position:fixed;top:74px;left:0;right:0;flex-direction:column;align-items:stretch;background:#fff;box-shadow:0 10px 30px rgba(0,0,0,.12);padding:8px 0;max-height:calc(100vh - 74px);overflow-y:auto;transform:translateY(-16px);opacity:0;visibility:hidden;transition:.3s;z-index:998;margin:0;}
  .menu.open{display:flex !important;transform:translateY(0);opacity:1 !important;visibility:visible !important;}
  .menu>li{width:100%;border-bottom:1px solid #f2f2f2;}
  .menu-login-m{display:block !important;}
  .menu-login-m a{display:flex;align-items:center;gap:8px;margin:12px 20px;padding:12px 20px;border-radius:50px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff !important;font-size:14px;justify-content:center;}
  .menu>li>a{padding:14px 20px;font-size:15px;}
  .menu>li>a:hover,.menu>li.active>a{color:#34495e !important;}
  .menu>li>a:hover::after,.menu>li.active>a::after{transform:scaleX(0) !important;}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;min-width:0;padding:2px 0 8px 20px;background:transparent;}
  .dropdown a{padding:10px 16px;}
  .menu>li:hover .dropdown{transform:none;}
}
.nav-login{display:flex;align-items:center;gap:8px;padding:9px 20px;border-radius:50px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;font-size:14px;box-shadow:0 6px 16px rgba(199,68,62,.35);transition:.3s;}
.nav-login:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(199,68,62,.4);}

/* Language Switcher */
.lang-switcher{position:relative;display:inline-block;}
.lang-btn{display:flex;align-items:center;gap:6px;padding:8px 14px;border-radius:6px;cursor:pointer;font-size:14px;color:#333;transition:all .3s;border:none;background:transparent;}
.lang-btn:hover{color:#c0392b;}
.lang-arrow{font-size:10px;transition:transform .3s;}
.lang-switcher.open .lang-arrow{transform:rotate(180deg);}
.lang-dropdown{position:absolute;top:calc(100% + 6px);right:0;min-width:170px;background:#fff;border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.12);overflow:hidden;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all .3s;z-index:1000;border:1px solid #eee;}
.lang-switcher.open .lang-dropdown{opacity:1;visibility:visible;transform:translateY(0);}
.lang-item{display:flex;align-items:center;gap:8px;padding:10px 16px;text-decoration:none;color:#333;font-size:14px;transition:background .2s;}
.lang-item:hover{background:#f5f5f5;}
.lang-item.active{background:#c0392b;color:#fff;}
.lang-item i{font-size:12px;width:16px;text-align:center;}

/* ===== Page Banner ===== */
.page-banner{padding:56px 0 0;}
.pb-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.pb-cell{border-radius:18px;overflow:hidden;position:relative;height:170px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;font-size:40px;transition:.4s;}
.pb-cell::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0),rgba(0,0,0,.35));}
.pb-cell i{position:relative;z-index:2;filter:drop-shadow(0 6px 14px rgba(0,0,0,.35));}
.pb-cell small{position:relative;z-index:2;font-size:14px;letter-spacing:2px;margin-top:10px;font-weight:600;}
.pb-cell:hover{transform:translateY(-6px);box-shadow:0 16px 36px rgba(0,0,0,.2);}
.pb-cell.pb-air{background:linear-gradient(135deg,#2980b9,#1f618d);}
.pb-cell.pb-cal{background:linear-gradient(135deg,#e67e22,#d35400);}
.pb-cell.pb-truck{background:linear-gradient(135deg,#27ae60,#1e8449);}
.pb-cell.pb-ship{background:linear-gradient(135deg,#8e44ad,#6c3483);}
.page-title{text-align:center;padding:44px 0 14px;}
.page-title h2{font-size:38px;font-weight:800;color:var(--dark);letter-spacing:2px;position:relative;display:inline-block;}
.page-title h2::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:-14px;width:56px;height:4px;border-radius:4px;background:var(--primary);}
.page-title p{color:var(--gray);margin-top:28px;font-size:15px;}

/* === 产品详情正文 === */
.pd-body{padding:48px 20px 70px;background:#fff;}
.pd-content{ margin:0 auto;color:#374151;font-size:16px;line-height:1.9;text-align:left;word-break:break-word;}
.pd-content h1,.pd-content h2,.pd-content h3,.pd-content h4{color:var(--dark);font-weight:700;line-height:1.4;margin:32px 0 16px;}
.pd-content h2{font-size:26px;}
.pd-content h3{font-size:21px;}
.pd-content p{margin:0 0 18px;text-align:left;}
.pd-content img{max-width:100%;height:auto;border-radius:12px;margin:20px 0;box-shadow:0 6px 20px rgba(0,0,0,.08);}
.pd-content a{color:var(--primary);text-decoration:underline;}
.pd-content ul,.pd-content ol{padding-left:24px;margin:0 0 18px;}
.pd-content li{margin:6px 0;}
.pd-content blockquote{margin:18px 0;padding:14px 22px;border-left:4px solid var(--primary);background:#f7f9fc;color:#4b5563;border-radius:0 10px 10px 0;}

/* ===== Product List ===== */
.product-list{padding:60px 20px 90px;}
.pl-item{display:flex;gap:34px;background:#fff;border:1px solid var(--border);border-radius:22px;padding:40px;margin-bottom:30px;transition:.35s;position:relative;overflow:hidden;cursor:pointer;}
.pl-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:linear-gradient(180deg,var(--primary),var(--primary-light));opacity:0;transition:.3s;}
.pl-item:hover{transform:translateY(-6px);box-shadow:0 20px 48px rgba(0,0,0,.1);border-color:transparent;}
.pl-item:hover::before{opacity:1;}
.pl-logo{width:170px;height:170px;border-radius:26px;background:#fff5f4 center center / cover no-repeat;border:1px solid #fadbd8;flex-shrink:0;box-shadow:0 10px 24px rgba(199,68,62,.14);}
.pl-body{flex:1;}
.pl-more{display:inline-flex;align-items:center;gap:6px;margin-top:18px;color:var(--primary);font-weight:600;text-decoration:none;}
.pl-more::after{content:"";position:absolute;inset:0;z-index:1;}
.pl-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-bottom:12px;}
.pl-head h3{font-size:23px;color:var(--dark);}
.pl-head .hot{background:var(--primary);color:#fff;font-size:12px;padding:3px 14px;border-radius:20px;font-weight:500;margin-left:10px;}
.pl-tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px;}
.pl-tags span{display:inline-flex;align-items:center;gap:6px;background:var(--light);border:1px solid var(--border);color:#5d6d7e;font-size:12px;padding:5px 14px;border-radius:50px;}
.pl-tags span i{color:var(--primary);font-size:11px;}
.pl-body p{font-size:14px;color:var(--gray);line-height:2;}
.pl-more{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-weight:700;font-size:15px;margin-top:16px;transition:.3s;}
.pl-more:hover{color:var(--primary-dark);}
.pl-more i{transition:.3s;}
.pl-more:hover i{transform:translateX(5px);}
.pl-num{font-size:80px;font-weight:800;color:transparent;-webkit-text-stroke:2px rgba(199,68,62,.25);line-height:1;align-self:flex-start;font-family:Arial,Helvetica,sans-serif;}

/* ===== CTA ===== */
.cta{background:linear-gradient(120deg,#a93226,#c7443e 60%,#e0604a);color:#fff;padding:56px 0;text-align:center;}
.cta h3{font-size:28px;letter-spacing:1px;margin-bottom:10px;}
.cta p{color:#fbe9e7;font-size:15px;margin-bottom:26px;}
.cta a{display:inline-flex;align-items:center;gap:10px;padding:14px 40px;border-radius:50px;background:#fff;color:var(--primary);font-weight:700;transition:.3s;box-shadow:0 10px 26px rgba(0,0,0,.2);}
.cta a:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(0,0,0,.28);}

/* ===== Footer ===== */
.footer{background:#0f171f;color:#9fb0bf;padding:70px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:46px;}
.footer h4{color:#fff;font-size:16px;margin-bottom:20px;position:relative;padding-bottom:12px;}
.footer h4::after{content:"";position:absolute;left:0;bottom:0;width:34px;height:3px;border-radius:3px;background:var(--primary);}
.footer-about p{line-height:1.9;margin-top:16px;}
.footer-links a{display:flex;align-items:center;gap:8px;padding:7px 0;transition:.3s;}
.footer-links a i{font-size:10px;color:var(--primary);}
.footer-links a:hover{color:#fff;padding-left:6px;}
.footer-contact li{list-style:none;display:flex;gap:12px;align-items:flex-start;padding:8px 0;}
.footer-contact i{color:var(--primary);margin-top:4px;width:18px;}
.copyright{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;font-size:13px;}
.copyright .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;}
.copyright a{color:#7b8b9c;margin-left:18px;transition:.3s;}
.copyright a:hover{color:#fff;}

/* ===== Responsive ===== */
@media(max-width:992px){
  .pb-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
  .pl-item{flex-direction:column;}
}
@media(max-width:640px){
  .pb-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .nav-login{display:none;}
}



.pbanner{position:relative;width:100%;height:320px;overflow:hidden;display:flex;align-items:center;justify-content:center;text-align:center;}
.pbanner-bg{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat;filter:blur(2px) brightness(.72);transform:scale(1.1);}
.pbanner-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,12,30,.15),rgba(10,12,30,.55));}
.pbanner-content{position:relative;z-index:2;padding:0 20px;color:#fff;}
.pbanner-title{font-size:45px;font-weight:700;line-height:1.2;margin:0 0 8px;letter-spacing:3px;text-shadow:0 2px 14px rgba(0,0,0,.35);}
.pbanner-sub{font-size:18px;margin:0 0 16px;letter-spacing:5px;color:rgba(255,255,255,.88);}
.pbanner-crumb{display:inline-flex;align-items:center;gap:10px;padding:6px 18px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);border-radius:30px;font-size:13px;color:rgba(255,255,255,.92);backdrop-filter:blur(6px);}
.pbanner-crumb a{color:#fff;text-decoration:none;transition:opacity .25s;}
.pbanner-crumb a:hover{opacity:.75;}
.pbanner-crumb .sep{opacity:.55;}
@media(max-width:768px){
    .pbanner{height:200px;}
    .pbanner-title{font-size:28px;margin-bottom:5px;letter-spacing:2px;}
    .pbanner-sub{font-size:14px;margin-bottom:10px;letter-spacing:2px;}
    .pbanner-crumb{gap:8px;padding:5px 14px;font-size:12px;border-radius:20px;}
}

#translate{ display: none; }

/* ===== Message Form ===== */
.message-section{padding:60px 20px 90px;}
.message-form{max-width:900px;margin:0 auto;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:24px;}
.form-group{margin-bottom:24px;}
.form-group label{display:block;font-size:15px;color:#34495e;font-weight:600;margin-bottom:8px;}
.form-group label .required{color:#c7443e;margin-right:2px;}
.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="email"]{width:100%;height:48px;padding:12px 18px;border:1px solid #e8edf2;border-radius:10px;font-size:14px;color:#2c3e50;background:#fff;transition:.3s;outline:none;}
.form-group input:focus{border-color:#c7443e;box-shadow:0 0 0 3px rgba(199,68,62,.12);}
.form-group input::placeholder{color:#aab7c4;}
.checkbox-group,.radio-group{display:flex;flex-wrap:wrap;gap:20px;margin-top:6px;}
.checkbox-label,.radio-label{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:#455a64;cursor:pointer;user-select:none;}
.checkbox-label input,.radio-label input{width:18px;height:18px;accent-color:#c7443e;cursor:pointer;}
.checkbox-label:hover,.radio-label:hover{color:#c7443e;}
.form-submit{text-align:center;margin-top:36px;}
.submit-btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 60px;border:none;border-radius:50px;background:linear-gradient(135deg,#c7443e,#a93226);color:#fff;font-size:16px;font-weight:700;cursor:pointer;transition:.35s;box-shadow:0 8px 22px rgba(199,68,62,.35);}
.submit-btn:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(199,68,62,.45);}
.form-group-captcha label span{color:#c7443e;}
.captcha-row{display:flex;align-items:center;gap:14px;}
.captcha-input{flex:1;height:48px;padding:12px 18px;border:1px solid #e8edf2;border-radius:10px;font-size:14px;color:#2c3e50;background:#fff;transition:.3s;outline:none;}
.captcha-input:focus{border-color:#c7443e;box-shadow:0 0 0 3px rgba(199,68,62,.12);}
.captcha-img{height:48px;border-radius:8px;border:1px solid #e8edf2;cursor:pointer;flex-shrink:0;}
@media(max-width:640px){
  .form-row{grid-template-columns:1fr;gap:0;}
  .checkbox-group{flex-direction:column;gap:10px;}
}