:root{
  /* OUYA 欧亚汽车出口 — 品牌配色（从 Logo 提取） */
  --primary:#1a3a5c; --primary-dark:#0d2236; --accent:#e8a04c;
  --bg:#f7f9fc; --card:#fff; --text:#1f2933; --muted:#6b7785;
  --border:#e3e8ef; --ok:#1a7f37; --warn:#b58100; --danger:#c0392b;
  /* Logo 品牌色 */
  --logo-blue:#1a2d4a; --logo-orange:#e8a04c;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,Segoe UI,Roboto,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--text);background:var(--bg);line-height:1.6;font-size:15px}
a{color:var(--primary);text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 16px}
h1,h2,h3,h4{margin:0 0 .5em}

/* Header / Nav */
.site-header{background:var(--primary);color:#fff;position:sticky;top:0;z-index:50}
.nav-bar{display:flex;align-items:center;gap:16px;height:60px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;white-space:nowrap}
.brand-logo{height:38px;width:auto;object-fit:contain}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:18px;margin-left:auto;flex-wrap:wrap}
.nav-links a{color:#e8eef5}
.nav-links a:hover,.nav-links a.active{color:#fff;text-decoration:underline}
.admin-link{background:var(--accent);color:#1f2933!important;padding:5px 12px;border-radius:20px;font-weight:600}
.nav-toggle{display:none;background:none;border:1px solid #fff;color:#fff;font-size:20px;border-radius:6px;padding:2px 10px;margin-left:auto}

/* Language switcher (dropdown) */
.lang-switcher{position:relative;display:inline-block}
.lang-trigger{display:inline-flex;align-items:center;gap:6px;background:transparent;border:1px solid rgba(255,255,255,.5);border-radius:14px;color:#fff;font-size:13px;padding:4px 10px;cursor:pointer;line-height:1}
.lang-trigger:hover{border-color:#fff}
.lang-globe{display:block;color:#fff}
.lang-trigger-label{white-space:nowrap}
.lang-caret{display:block;color:#fff;transition:transform .15s}
.lang-switcher.open .lang-caret{transform:rotate(180deg)}
.lang-menu{position:absolute;top:calc(100% + 6px);right:0;min-width:120px;list-style:none;margin:0;padding:5px;background:var(--primary);border:1px solid rgba(255,255,255,.25);border-radius:10px;box-shadow:0 8px 22px rgba(0,0,0,.25);display:none;z-index:60}
.lang-switcher.open .lang-menu{display:block}
.lang-menu .lang-option{display:block;padding:8px 12px;border-radius:7px;color:#fff;font-size:13px;text-decoration:none;white-space:nowrap}
.lang-menu .lang-option:hover{background:rgba(255,255,255,.15)}
.lang-menu .lang-option.active{background:#fff;color:var(--primary);font-weight:700}

/* Hero */
.hero{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;padding:46px 0 54px;text-align:center}
.hero h1{font-size:clamp(22px,4vw,38px)}
.hero p{color:#cfe0f0;margin-bottom:22px}
.hero-search{display:flex;gap:8px;max-width:560px;margin:0 auto}
.hero-search input{flex:1;padding:12px 16px;border:0;border-radius:8px;font-size:15px}
.hero-search button{background:var(--accent);border:0;color:#1f2933;font-weight:700;padding:0 22px;border-radius:8px;cursor:pointer}

/* 品牌横幅（Hero 内 Logo 展示区） */
.hero-brand{display:flex;align-items:center;justify-content:center;gap:20px;margin-bottom:24px}
.hero-brand img{height:56px;width:auto;filter:brightness(0) invert(1);opacity:.95}

/* Layout */
.site-main{padding:28px 0 48px;min-height:50vh}
.section-title{display:flex;align-items:center;justify-content:space-between;margin:8px 0 18px}
.section-title h2{font-size:22px}

/* Car grid */
.car-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.car-card{background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:.2s;display:flex;flex-direction:column}
.car-card:hover{box-shadow:0 8px 24px rgba(15,76,129,.12);transform:translateY(-2px)}
.car-card .thumb{display:block;aspect-ratio:16/10;background:#e9edf2;position:relative}
.car-card .thumb img{width:100%;height:100%;object-fit:cover}
.badge{position:absolute;top:8px;left:8px;background:var(--primary);color:#fff;font-size:12px;padding:3px 9px;border-radius:12px}
.badge.sold{background:var(--danger)} .badge.reserved{background:var(--warn)} .badge.transit{background:#5b6cff}
.badge.new{background:var(--accent);color:#1a2733}
.car-card .body{padding:14px;display:flex;flex-direction:column;gap:6px;flex:1}
.car-card .title{display:block;color:#1a2733;font-weight:700;font-size:16px;text-decoration:none}
.car-card .title:hover{color:var(--primary)}
.car-card .meta{color:var(--muted);font-size:13px}
.car-card .price{display:block;color:var(--primary);font-weight:700;font-size:18px;margin-top:auto;text-decoration:none}
.btn-outline{background:#fff;border:1px solid var(--primary);color:var(--primary)}
.btn-solid{background:var(--primary);color:#fff}

/* Filters */
.filters{display:flex;flex-wrap:wrap;gap:10px;background:#fff;border:1px solid var(--border);border-radius:12px;padding:14px;margin-bottom:20px}
.filters select,.filters input{padding:8px 10px;border:1px solid var(--border);border-radius:8px;min-width:130px}
.filters .btn{background:var(--primary);color:#fff;border:0;border-radius:8px;padding:8px 16px;cursor:pointer}

/* Detail */
.detail{display:grid;grid-template-columns:1.1fr .9fr;gap:28px}
.detail .gallery img{border-radius:12px;border:1px solid var(--border)}
.detail .thumbs{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.detail .thumbs img{width:84px;height:56px;object-fit:cover;border-radius:6px;border:1px solid var(--border);cursor:pointer}
.spec-table{width:100%;border-collapse:collapse;margin-top:10px}
.spec-table td{padding:9px 10px;border-bottom:1px solid var(--border)}
.spec-table td:first-child{color:var(--muted);width:42%}
.price-tag{font-size:26px;color:var(--primary);font-weight:800;margin:12px 0}
.share-row{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}
.share-btn{background:#fff;border:1px solid var(--border);border-radius:8px;padding:8px 14px;cursor:pointer;font-size:14px}
.detail-topbar{display:flex;align-items:center;justify-content:space-between;margin:6px 0 14px}
.detail-topbar .back-link{color:var(--text);text-decoration:none;font-size:14px}
.detail-topbar .share-btn.top{margin:0}

/* Forms */
.form-wrap{max-width:640px;margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:12px;padding:24px}
.field{margin-bottom:14px}
.field label{display:block;font-weight:600;margin-bottom:6px}
.field input,.field textarea,.field select{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:15px;font-family:inherit}
.field textarea{min-height:120px}
.btn{background:var(--primary);color:#fff;border:0;border-radius:8px;padding:5px 11px;font-size:12px;font-weight:600;cursor:pointer}
.btn.ghost{background:#fff;color:var(--primary);border:1px solid var(--primary)}
.btn.danger{background:var(--danger)}
/* 按钮内 Font Awesome 图标与文字间距 */
.btn i.fa-solid, .btn i.fas, .bt-col-btn i.fa-solid { margin-right:5px; }
.btn.xs i.fa-solid, .btn.xs i.fas { margin-right:3px; }
/* 表格行操作图标（operate 列） */
.btap-btn, .bt-table a[title]{display:inline-flex;align-items:center;gap:0;color:var(--primary);text-decoration:none}
.btap-btn i.fa-solid, .bt-table td a[title] i.fa-solid{margin:0 5px;font-size:14px;color:var(--primary)}
.bt-table td a[title]:hover i.fa-solid{color:var(--accent)}
/* 门户联系/公司页信息列表图标 */
.contact-list li i.fa-solid{margin-right:8px;color:var(--primary);width:18px;text-align:center}

/* Footer */
.site-footer{background:#0b2236;color:#cdd8e3;padding:34px 0 18px;margin-top:30px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px}
.footer-grid h4{color:#fff}
.footer-grid a{color:#9fb6c9}
.footer-brand{display:inline-block;margin-bottom:10px}
.footer-logo{height:42px;width:auto;object-fit:contain;filter:brightness(0) invert(1);opacity:.95}
.footer-domain{color:var(--accent);font-weight:700;letter-spacing:.5px;word-break:break-all}
.footer-bottom{border-top:1px solid #1c3a52;margin-top:18px;padding-top:14px;color:#7d93a6;font-size:13px}
.footer-social{margin-top:12px}
.footer-social .social-inline{display:flex;flex-wrap:wrap;gap:8px}
.footer-social .social-ico{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.08);color:#cdd8e3;transition:.15s}
.footer-social .social-ico:hover{background:var(--accent);color:#fff}
.footer-social .social-wa{background:rgba(37,211,102,.18);color:#25d366}
.footer-social .social-wa:hover{background:#25d366;color:#fff}

/* Contact show page */
.contact-show .contact-card{background:var(--bg,#f6f8fb);border:1px solid var(--border,#e3e8ef);border-radius:12px;padding:18px 20px;margin-bottom:20px}
.contact-show .contact-card h4{margin:14px 0 6px;color:var(--primary)}
.contact-show .contact-card h4:first-child{margin-top:0}
.contact-big{font-size:19px;font-weight:700;color:#0b2236}
.contact-list{list-style:none;padding:0;margin:0}
.contact-list li{padding:4px 0}
.contact-show .social-group{margin-bottom:18px}
.contact-show .social-group h4{margin:0 0 10px;color:var(--primary)}
.social-row{display:flex;flex-wrap:wrap;gap:10px}
.social-pill{display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border:1px solid var(--border,#e3e8ef);border-radius:999px;text-decoration:none;color:#334;background:#fff;font-size:14px;transition:.15s}
.social-pill:hover{border-color:var(--primary);color:var(--primary);box-shadow:0 2px 8px rgba(0,0,0,.06)}
.social-pill svg{flex:none}
.wa-chat-btn{display:inline-flex;align-items:center;gap:10px;margin-top:8px;padding:13px 22px;background:#25d366;color:#fff;border-radius:10px;text-decoration:none;font-weight:700;font-size:16px;box-shadow:0 3px 12px rgba(37,211,102,.3)}
.wa-chat-btn:hover{background:#1ebe5a}
.wa-chat-btn svg{width:22px;height:22px}
.wa-desc{margin-top:8px}
.social-inline{display:inline-flex;gap:10px;align-items:center}
.social-ico{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:#eef2f7;color:#445;transition:.15s}
.social-ico:hover{background:var(--primary);color:#fff}
.social-wa{background:#e7f9ee;color:#25d366}
.social-wa:hover{background:#25d366;color:#fff}

/* Admin */
.admin-shell{display:grid;grid-template-columns:230px 1fr;min-height:100vh}
.sidebar{background:#0b2236;color:#cdd8e3;padding:18px}
.sidebar .logo{color:#fff;font-weight:700;font-size:18px;padding:8px 10px 18px;display:flex;align-items:center;gap:8px}
.sidebar .logo img{height:28px;width:auto;object-fit:contain}
.sidebar a{display:block;color:#cdd8e3;padding:10px 12px;border-radius:8px;margin-bottom:4px}
.sidebar .sidebar-group-label{color:#7e93a8;font-size:11px;letter-spacing:.08em;text-transform:uppercase;padding:14px 12px 4px;margin-top:6px}
.sidebar a:hover,.sidebar a.active{background:var(--primary);color:#fff}
/* 侧边栏父菜单（带子菜单折叠） */
.sidebar-parent{margin:2px 0 4px}
.sidebar-parent > .sidebar-parent-toggle{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;color:#cdd8e3;border-radius:8px;cursor:pointer;text-decoration:none;user-select:none}
.sidebar-parent > .sidebar-parent-toggle:hover{background:rgba(255,255,255,.08);color:#fff}
.sidebar-parent .caret{font-size:10px;transition:transform .15s}
.sidebar-parent.open .caret{transform:rotate(180deg)}
.sidebar-children{display:none;padding-left:6px;margin:2px 0 4px}
.sidebar-parent.open .sidebar-children{display:block}
.sidebar-children a{display:block;padding:8px 12px 8px 30px;color:#cdd8e3;border-radius:8px;margin-bottom:2px;text-decoration:none;border-left:2px solid transparent}
.sidebar-children a:hover{background:rgba(255,255,255,.08);color:#fff}
.sidebar-children a.active{background:var(--primary);color:#fff;border-left-color:var(--accent,#ffd166)}
.admin-main{padding:22px;background:var(--bg);overflow:auto}
/* 后台顶部栏（右上角语言切换） */
.admin-topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#fff;border:1px solid var(--border);border-radius:12px;padding:10px 16px;margin-bottom:18px}
.admin-topbar-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.admin-user{font-size:13px;color:var(--muted);white-space:nowrap}
.admin-topbar .lang-switcher .lang-trigger{color:var(--primary);border-color:var(--border)}
.admin-topbar .lang-switcher .lang-trigger:hover{border-color:var(--primary)}
.admin-topbar .lang-switcher .lang-globe,.admin-topbar .lang-switcher .lang-caret{color:var(--primary)}
.admin-topbar .lang-menu{background:#fff;border:1px solid var(--border);box-shadow:0 8px 22px rgba(0,0,0,.12)}
.admin-topbar .lang-menu .lang-option{color:var(--text)}
.admin-topbar .lang-menu .lang-option:hover{background:#f0f4f8}
.admin-topbar .lang-menu .lang-option.active{background:var(--primary);color:#fff}
.admin-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px;margin-bottom:18px}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:18px}
.stat{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px}
.stat .num{font-size:26px;font-weight:800;color:var(--primary)}
.stat .lbl{color:var(--muted);font-size:13px}

/* Tables */
table.data{width:100%;border-collapse:collapse;background:#fff;border-radius:10px;overflow:hidden;font-size:14px}
table.data th,table.data td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:left}
table.data th{background:#f0f4f8;color:var(--muted);font-weight:600}
.tag{display:inline-block;padding:2px 9px;border-radius:12px;font-size:12px;background:#eef2f7;color:var(--muted)}
.tag.ok{background:#e6f4ea;color:var(--ok)} .tag.warn{background:#fdf3d8;color:var(--warn)}
.tag.danger{background:#fbe9e7;color:var(--danger)}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px;align-items:center}
.pager{margin-top:16px;display:flex;justify-content:center}
.pagination{display:flex;gap:6px;list-style:none;padding:0;margin:0}
.pagination a{padding:6px 12px;border:1px solid var(--border);border-radius:8px;background:#fff}
.pagination .active a,.pagination a.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.alert{padding:12px 16px;border-radius:8px;margin-bottom:14px}
.alert.success{background:#e6f4ea;color:var(--ok)}
.alert.danger{background:#fbe9e7;color:var(--danger)}
.alert.info{background:#e7f0fb;color:var(--primary)}

/* Responsive */
@media (max-width:768px){
  .nav-toggle{display:block}
  .nav-links{display:none;position:absolute;top:60px;right:0;left:0;background:var(--primary);flex-direction:column;align-items:stretch;padding:12px 16px;gap:6px}
  .nav-links.open{display:flex}
  .detail{grid-template-columns:1fr}
  .admin-shell{grid-template-columns:1fr}
  .sidebar{display:none}
  .sidebar.open{display:block}
  .hero-search{flex-direction:column}
  .hero-search button{padding:12px}
}

/* ===== 课程模块（前台 二手车出海） ===== */
.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px;margin-top:8px}
.course-card{background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:.2s;display:flex;flex-direction:column}
.course-card:hover{box-shadow:0 8px 24px rgba(15,76,129,.12);transform:translateY(-2px)}
.course-card .thumb{position:relative;aspect-ratio:16/10;background:#e9edf2}
.course-card .thumb img{width:100%;height:100%;object-fit:cover}
.course-card .thumb .badge{position:absolute;top:8px;left:8px;background:rgba(0,0,0,.6);color:#fff;font-size:12px;padding:2px 8px;border-radius:10px}
.course-card .thumb .badge.video{left:auto;right:8px;background:var(--primary)}
.course-card .body{padding:14px;display:flex;flex-direction:column;gap:6px;flex:1}
.course-card .cat{color:var(--muted);font-size:12px}
.course-card .title{display:block;font-weight:700;font-size:16px;color:#1a2733;text-decoration:none}
.course-card .title:hover{color:var(--primary)}
.course-card .summary{color:var(--muted);font-size:13px;flex:1}
.course-card .btn-solid{margin-top:8px;text-align:center;padding:8px;border-radius:8px;font-size:13px;font-weight:600;background:var(--primary);color:#fff;text-decoration:none}
.course-detail{max-width:920px;margin:0 auto}
.video-wrap{position:relative;aspect-ratio:16/9;background:#000;border-radius:12px;overflow:hidden;margin:14px 0}
.video-wrap iframe,.video-wrap video{position:absolute;inset:0;width:100%;height:100%;border:0}
.rich{line-height:1.8;font-size:15px}
.rich img{max-width:100%;border-radius:8px;margin:8px 0}
.rich ul{padding-left:20px}

/* 合作伙伴 logo 墙（2 行 8 列） */
.partner-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:12px}
.partner-cell{display:flex;align-items:center;justify-content:center;background:#fff;border:1px solid var(--border);border-radius:10px;padding:14px;min-height:80px;transition:.18s}
.partner-cell:hover{box-shadow:0 6px 18px rgba(15,76,129,.12);transform:translateY(-2px);border-color:var(--primary)}
.partner-cell img{max-width:100%;max-height:54px;width:auto;height:auto;object-fit:contain}
@media (max-width:900px){ .partner-grid{grid-template-columns:repeat(4,1fr)} }
@media (max-width:520px){ .partner-grid{grid-template-columns:repeat(3,1fr)} }

/* ===== 公司介绍页 ===== */
/* 通用区块标题（news/course/index 等页面共用） */
.section-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:8px 0 18px;flex-wrap:wrap}
.section-title h2{font-size:22px;margin:0}
.section-title .muted{color:var(--muted);font-size:13px}
.section-title .en-sub{color:var(--muted);font-size:13px;letter-spacing:1px;text-transform:uppercase}

/* ===== 公司介绍页（新版） ===== */
.co-page{padding:34px 0 10px}
.co-lead{color:#2a3340;line-height:1.95;font-size:15.5px;margin:0 0 20px;max-width:920px}
.co-lead.muted{color:var(--muted)}
.co-lead.center{text-align:center;margin-left:auto;margin-right:auto}

/* Hero 全幅 Banner */
.co-hero{position:relative;color:#fff;overflow:hidden;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);padding:56px 0 40px}
.co-hero-bg{position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);background-size:22px 22px;opacity:.5}
.co-hero-bg:after{content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(232,160,76,.30),transparent 70%)}
.co-hero-inner{position:relative;text-align:center}
.co-eyebrow{display:inline-block;letter-spacing:3px;font-weight:700;font-size:13px;text-transform:uppercase;color:var(--accent);margin:0 0 12px;padding:5px 14px;border:1px solid rgba(232,160,76,.5);border-radius:999px}
.co-title{font-size:34px;margin:0 0 10px;font-weight:800;letter-spacing:.5px;text-shadow:0 2px 14px rgba(0,0,0,.25)}
.co-sub{font-size:16px;margin:0 0 8px;color:#dbe6f1}
.co-tagline{font-size:13px;letter-spacing:1.5px;font-weight:600;color:var(--accent);margin:0 0 26px}
.co-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;max-width:880px;margin:0 auto;padding-top:8px;border-top:1px solid rgba(255,255,255,.18)}
.co-stat{display:flex;flex-direction:column;gap:4px;padding:6px 4px}
.co-stat-num{font-size:30px;font-weight:800;color:#fff;line-height:1}
.co-stat-label{font-size:12.5px;color:#c7d6e4}

/* 锚点导航 */
.co-subnav{position:sticky;top:60px;z-index:40;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--border);margin-top:-1px}
.co-subnav-inner{display:flex;gap:6px;overflow-x:auto;padding:10px 0}
.co-subnav a{white-space:nowrap;padding:7px 14px;border-radius:999px;font-size:13.5px;color:var(--muted);text-decoration:none;transition:.15s}
.co-subnav a:hover{background:rgba(26,58,92,.07);color:var(--primary)}
.co-subnav a.active{background:var(--primary);color:#fff}

/* 区块标题 */
.co-block{margin-top:46px;scroll-margin-top:58px}
.co-head{text-align:center;margin-bottom:22px}
.co-head-en{margin:0;font-size:12px;letter-spacing:3px;text-transform:uppercase;color:var(--accent);font-weight:700}
.co-head-zh{margin:4px 0 0;font-size:26px;color:var(--primary);font-weight:800}
.co-head-line{display:block;width:54px;height:3px;border-radius:3px;margin:10px auto 0;background:linear-gradient(90deg,var(--primary),var(--accent))}

/* 公司概况 */
.co-showroom{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-bottom:18px}
.co-showroom-card{position:relative;background:var(--card);border:1px solid var(--border);border-radius:16px;padding:24px 22px 22px;overflow:hidden;transition:.18s}
.co-showroom-card:hover{box-shadow:0 12px 30px rgba(15,76,129,.12);transform:translateY(-3px)}
.co-showroom-card:before{content:"";position:absolute;left:0;top:0;width:100%;height:4px;background:linear-gradient(90deg,var(--primary),var(--accent))}
.co-showroom-ico{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;background:rgba(26,58,92,.08);color:var(--primary);font-size:20px;margin-bottom:12px}
.co-showroom-card h3{margin:0 0 8px;font-size:19px;color:var(--primary)}
.co-showroom-card p{margin:0;color:#44505c;line-height:1.85}
.co-principles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.co-principle{display:flex;flex-direction:column;gap:6px;background:linear-gradient(135deg,#0f4c81,#1d6fb8);color:#fff;border-radius:14px;padding:18px 20px}
.co-principle-dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(232,160,76,.25)}
.co-principle strong{font-size:16px}
.co-principle span{font-size:13px;opacity:.92;line-height:1.7}

/* 核心优势 */
.co-adv-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:4px}
.co-adv{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:24px;transition:.18s;position:relative}
.co-adv:hover{box-shadow:0 14px 32px rgba(15,76,129,.14);transform:translateY(-4px)}
.co-adv-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.co-adv-icon{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:14px;background:rgba(26,58,92,.08);color:var(--primary);font-size:24px}
.co-adv-no{font-size:26px;font-weight:800;color:rgba(26,58,92,.14)}
.co-adv h3{margin:0 0 8px;font-size:20px;color:var(--primary)}
.co-adv-sum{color:#44505c;line-height:1.75;margin:0 0 12px}
.co-adv-points{margin:0;padding-left:18px;color:#3a4651;line-height:1.85;font-size:14px}
.co-adv-points li{margin-bottom:6px}

/* 全流程服务 时间线 */
.co-process .co-steps{list-style:none;margin:18px 0 0;padding:0;display:grid;grid-template-columns:repeat(6,1fr);gap:0;counter-reset:step;position:relative}
.co-process .co-steps:before{content:"";position:absolute;top:25px;left:8%;right:8%;height:2px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:.35}
.co-step{position:relative;text-align:center;padding:0 8px}
.co-step-no{position:relative;z-index:2;width:50px;height:50px;border-radius:50%;background:var(--primary);color:#fff;font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;border:4px solid #fff;box-shadow:0 4px 12px rgba(15,76,129,.25)}
.co-step h4{margin:0 0 6px;font-size:15px;color:var(--text)}
.co-step p{margin:0;color:var(--muted);font-size:12.5px;line-height:1.6}

/* 团队照片画廊 */
.co-gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.co-photo{position:relative;display:block;border-radius:14px;overflow:hidden;border:1px solid var(--border);background:#eef2f6;aspect-ratio:4/3}
.co-photo img{width:100%;height:100%;object-fit:cover;display:block;transition:.35s}
.co-photo:hover img{transform:scale(1.08)}
.co-photo-zoom{position:absolute;right:10px;bottom:10px;width:34px;height:34px;border-radius:50%;background:rgba(26,58,92,.82);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;opacity:0;transform:translateY(6px);transition:.2s}
.co-photo:hover .co-photo-zoom{opacity:1;transform:translateY(0)}

/* 合作愿景 */
.co-vision-cols{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin:8px 0 16px}
.co-vision-col{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:24px 26px}
.co-vision-col-alt{background:linear-gradient(135deg,var(--primary),var(--primary-dark));border-color:transparent}
.co-vision-col-alt h3,.co-vision-col-alt ul{color:#fff}
.co-vision-ico{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:12px;background:rgba(232,160,76,.18);color:var(--accent);font-size:22px;margin-bottom:12px}
.co-vision-col h3{margin:0 0 12px;font-size:19px;color:var(--primary)}
.co-vision-col ul{margin:0;padding-left:20px;line-height:2;color:#3a4651;font-size:14.5px}
.co-vision-note{text-align:center;font-weight:700;color:var(--primary);font-size:16px;margin:6px 0 0}

/* 联系我们 */
.co-contact-card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:26px 28px;max-width:680px;margin:0 auto}
.co-contact-list{list-style:none;padding:0;margin:0 0 18px;display:grid;grid-template-columns:repeat(2,1fr);gap:14px 24px}
.co-contact-list li{display:flex;align-items:center;gap:12px;font-size:15px;color:#334}
.co-contact-list i{width:38px;height:38px;flex:none;border-radius:10px;background:rgba(26,58,92,.07);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:16px}
.co-contact-list a{color:var(--primary);text-decoration:none}
.co-contact-list a:hover{text-decoration:underline}
.co-contact-btn{display:inline-block;background:var(--primary);color:#fff;text-decoration:none;padding:12px 26px;border-radius:10px;font-weight:600;transition:.15s}
.co-contact-btn:hover{background:var(--primary-dark);transform:translateY(-2px)}

/* 视频 */
.co-video-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.co-video{margin:0;background:var(--card);border:1px solid var(--border);border-radius:16px;overflow:hidden}
.co-video video{width:100%;aspect-ratio:16/9;background:#000;display:block}
.co-video figcaption{padding:12px 14px;margin:0;font-size:14px;color:var(--muted);font-weight:600}

/* 灯箱 */
.co-lightbox{position:fixed;inset:0;z-index:200;background:rgba(8,18,28,.92);display:none;align-items:center;justify-content:center;padding:30px}
.co-lightbox.open{display:flex}
.co-lightbox img{max-width:92vw;max-height:88vh;border-radius:10px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.co-lightbox-close{position:absolute;top:18px;right:24px;width:44px;height:44px;border:0;border-radius:50%;background:rgba(255,255,255,.15);color:#fff;font-size:26px;cursor:pointer;line-height:1}
.co-lightbox-close:hover{background:rgba(255,255,255,.3)}

/* 响应式 */
@media (max-width:900px){
  .co-stats{grid-template-columns:repeat(2,1fr);gap:10px}
  .co-showroom{grid-template-columns:1fr}
  .co-principles{grid-template-columns:1fr}
  .co-adv-grid{grid-template-columns:1fr}
  .co-vision-cols{grid-template-columns:1fr}
  .co-process .co-steps{grid-template-columns:repeat(3,1fr);gap:18px 0}
  .co-process .co-steps:before{display:none}
  .co-gallery{grid-template-columns:repeat(3,1fr)}
  .co-video-grid{grid-template-columns:1fr}
  .co-head-zh{font-size:23px}
}
@media (max-width:560px){
  .co-hero{padding:40px 0 30px}
  .co-title{font-size:25px}
  .co-stats{grid-template-columns:repeat(2,1fr)}
  .co-process .co-steps{grid-template-columns:repeat(2,1fr);gap:16px 0}
  .co-gallery{grid-template-columns:repeat(2,1fr);gap:10px}
  .co-contact-list{grid-template-columns:1fr}
  .co-subnav a{font-size:13px;padding:6px 11px}
}

/* ===== 车商中心 ===== */
.dealer-tag{padding:8px 12px;margin-bottom:8px;color:#cdd8e3;font-size:13px;border-bottom:1px solid rgba(255,255,255,.08)}
.dealer-tag .tag{margin-left:6px}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:8px 0 22px}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px;text-align:center}
.stat-card .num{font-size:26px;font-weight:700;color:var(--primary)}
.stat-card .lbl{color:var(--muted);font-size:13px;margin-top:4px}
.dealer-quick{display:flex;gap:10px;flex-wrap:wrap}

/* ===== 角色与权限配置 ===== */
.perm-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin:6px 0}
.perm-mod{border:1px solid var(--border);border-radius:10px;padding:10px 12px;background:var(--card)}
.perm-mod-title{font-weight:700;margin-bottom:8px;color:var(--primary)}
.perm-item,.perm-row{display:flex;align-items:center;gap:8px;padding:4px 0;font-size:14px}
.perm-row{justify-content:space-between}
.perm-name{flex:1}
.perm-sel{width:auto;padding:3px 6px;font-size:13px}
.perm-item input{margin:0}

/* ===== 车辆媒体管理（图片/视频） ===== */
.muted{color:var(--muted);font-size:13px}
.media-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px}
.media-card{position:relative;border:1px solid var(--border);border-radius:10px;overflow:hidden;background:var(--card)}
.media-card img{width:100%;height:110px;object-fit:cover;display:block}
.media-ops{position:absolute;top:6px;right:6px;display:flex;gap:6px}
.media-list{display:flex;flex-direction:column;gap:10px}
.media-row{display:flex;align-items:center;gap:12px;border:1px solid var(--border);border-radius:10px;padding:10px;background:var(--card)}
.media-video{flex:0 0 auto}
.media-meta{flex:1;min-width:0;word-break:break-all;font-size:14px}
.btn.xs{padding:3px 8px;font-size:12px;line-height:1.4}
.btn.xs.danger{background:#e74c3c;color:#fff;border-color:#e74c3c}
/* 独立媒体管理页头部 */
.media-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap;margin-bottom:6px}
.media-head-actions{display:flex;gap:8px;flex-wrap:wrap}
.media-head-actions .btn i.fa-solid{margin-right:4px}

/* ===== 前台车辆视频展示 ===== */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.video-item video{width:100%;border-radius:10px;background:#000}
.video-link{display:inline-block;padding:10px 12px;border:1px solid var(--border);border-radius:10px;color:var(--primary);word-break:break-all}
.thumbs img{cursor:pointer}

/* ===== 分享弹层(PC + 移动端共用) ===== */
.share-modal{position:fixed;inset:0;background:rgba(0,0,0,.5);display:none;align-items:center;justify-content:center;z-index:999;padding:16px}
.share-modal.open{display:flex}
.share-card{position:relative;background:#fff;border-radius:16px;padding:24px;width:100%;max-width:360px;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.share-close{position:absolute;top:10px;right:12px;border:none;background:transparent;font-size:26px;line-height:1;color:#999;cursor:pointer}
.share-close:hover{color:#333}
.share-card-title{font-size:17px;font-weight:700;margin-bottom:16px;color:var(--text,#222)}
.share-link-row{display:flex;gap:8px;margin-bottom:18px}
.share-link-input{flex:1;min-width:0;padding:9px 10px;border:1px solid var(--border,#ddd);border-radius:9px;font-size:13px;color:var(--text,#222);background:#f7f9fb}
.share-copy{padding:9px 16px;border:none;border-radius:9px;background:var(--primary,#2b6cb0);color:#fff;font-size:13px;cursor:pointer;white-space:nowrap}
.share-copy:hover{opacity:.9}
.share-qr-wrap{display:flex;justify-content:center;margin-bottom:16px}
.share-qr{width:200px;height:200px;border:1px solid var(--border,#eee);border-radius:10px;background:#fff}
.share-download{display:inline-block;padding:10px 20px;border-radius:9px;background:#f0f4f8;color:var(--primary,#2b6cb0);font-size:13px;text-decoration:none;font-weight:600}
.share-download:hover{background:#e4ebf2}
@media (max-width:480px){
  .share-card{max-width:92vw;padding:20px 18px}
  .share-qr{width:170px;height:170px}
}
.m-share-btn{display:block;width:100%;margin:16px 0 8px;padding:13px;border:none;border-radius:12px;background:var(--primary,#2b6cb0);color:#fff;font-size:15px;font-weight:600;cursor:pointer}
.m-share-btn:hover{opacity:.92}
.m-detail-topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;gap:10px}
.m-detail-topbar .m-back{margin:0}
/* VIN 解析弹层（后台表单） */
.vin-modal{position:fixed;inset:0;background:rgba(0,0,0,.5);display:none;align-items:center;justify-content:center;z-index:999;padding:16px}
.vin-card{background:#fff;border-radius:16px;padding:22px;width:100%;max-width:440px;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.vin-card-head{display:flex;align-items:center;justify-content:space-between}
.vin-card-head .share-close{border:none;background:none;font-size:24px;line-height:1;cursor:pointer;color:var(--muted,#888)}
.vin-fields{max-height:46vh;overflow:auto;margin:6px 0 14px;border:1px solid var(--border,#eee);border-radius:10px;padding:6px 10px}
.vin-field-row{display:flex;align-items:flex-start;gap:8px;padding:7px 2px;border-bottom:1px solid #f2f2f2;font-size:14px}
.vin-field-row:last-child{border-bottom:none}
.vin-field-row .k{width:90px;flex:none;color:var(--muted,#666)}
.vin-field-row .v{flex:1;word-break:break-word}
.vin-card-foot{display:flex;gap:10px;justify-content:flex-end}
/* VIN 详情页网格 */
.vin-detail-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--border,#eee);border:1px solid var(--border,#eee);border-radius:10px;overflow:hidden;margin-top:14px}
.vin-detail-row{background:#fff;padding:9px 12px;display:flex;flex-direction:column}
.vin-detail-row .k{font-size:11px;color:var(--muted,#888);text-transform:uppercase;letter-spacing:.3px}
.vin-detail-row .v{font-size:14px;margin-top:2px;word-break:break-word}
@media (max-width:560px){.vin-detail-grid{grid-template-columns:1fr}}
.m-detail-topbar .m-share-btn.top{width:auto;margin:0;padding:10px 14px;font-size:14px;white-space:nowrap}

/* ============ bootstrap-table 适配（隔离容器，避免与系统 CSS 冲突） ============ */
.bt-table { width:100%; border-collapse:collapse; font-size:13px; background:#fff; }
.bt-table > thead > tr > th { background:#f5f7fa; color:#334; font-weight:600; border-bottom:2px solid #e6eaf0; padding:9px 12px; white-space:nowrap; }
.bt-table > tbody > tr > td { padding:8px 12px; border-bottom:1px solid #eef1f5; vertical-align:middle; }
.bt-table > tbody > tr:hover > td { background:#f7faff; }
.bootstrap-table .fixed-table-toolbar { margin-bottom:10px; display:flex; align-items:center; justify-content:flex-end; gap:8px; flex-wrap:wrap; }
.bootstrap-table .fixed-table-toolbar .bars { float:none; margin:0; }
.bootstrap-table .fixed-table-toolbar .search { float:none; margin:0; }
.bootstrap-table .fixed-table-toolbar .columns, .bootstrap-table .fixed-table-toolbar .columns-right { float:none; margin:0; }
.btap .fixed-table-toolbar .btn, .btap .columns .btn { border:1px solid var(--border,#e0e4ea); background:#fff; border-radius:7px; padding:6px 10px; color:#334; }
.btap .fixed-table-toolbar .btn:hover { background:#f0f4f8; }
.btap .dropdown-menu { border:1px solid var(--border,#e0e4ea); border-radius:8px; box-shadow:0 6px 20px rgba(0,0,0,.08); padding:6px 0; min-width:170px; }
.btap .dropdown-menu li label { padding:5px 14px; margin:0; cursor:pointer; display:flex; align-items:center; gap:8px; font-weight:400; }
.btap .dropdown-menu li label input { margin:0; }
.bt-edit { width:100%; box-sizing:border-box; border:1px solid var(--primary,#2b6cb0); border-radius:5px; padding:5px 7px; font-size:13px; }
.bt-inline { cursor:text; }
.bt-inline:hover { background:#fff8e1 !important; }
/* 行内编辑容器与多选控件 */
.bt-edit-wrap { display:block; }
.bt-edit-wrap.bt-edit-multi { display:flex; flex-direction:column; gap:4px; padding:4px 6px; background:#fff; border:1px solid var(--primary,#2b6cb0); border-radius:6px; min-width:120px; }
.bt-edit-opt { display:flex; align-items:center; gap:6px; font-size:13px; white-space:nowrap; cursor:pointer; }
.bt-edit-opt input { margin:0; }
.bt-tag-ok{background:#e6f6ec;color:#1a7f37;padding:2px 8px;border-radius:20px;font-size:12px}
.bt-tag-warn{background:#fff4e0;color:#b76e00;padding:2px 8px;border-radius:20px;font-size:12px}
.bt-tag-danger{background:#fdeaea;color:#c0392b;padding:2px 8px;border-radius:20px;font-size:12px}
.bt-num{text-align:right;font-variant-numeric:tabular-nums}
/* 隐藏 bootstrap-table 自带底栏（我们用自定义 .bt-footer 替代） */
.bt-table ~ .fixed-table-pagination,
.bootstrap-table .fixed-table-pagination { display:none !important; }

/* 自定义“列显示/隐藏”浮层：默认收起，点击展开，浮于最顶层且不挤占布局 */
.bt-col-toggle { position:relative; display:inline-flex; align-items:center; margin:0; }
.bt-col-btn { display:inline-flex; align-items:center; gap:6px; border:1px solid var(--border,#e0e4ea); background:#fff; border-radius:7px; padding:6px 11px; color:#222 !important; font-size:13px; cursor:pointer; line-height:1; }
.bt-col-btn:hover { background:#f0f4f8; }
.bt-caret { font-size:10px; transition:transform .15s; }
.bt-col-toggle.open .bt-caret { transform:rotate(180deg); }
/* 浮层：绝对定位、不占文档流、置于最顶层 */
.bt-col-panel { display:none; position:absolute; top:calc(100% + 6px); right:0; z-index:99999;
  min-width:190px; max-height:60vh; overflow:auto; background:#fff; border:1px solid var(--border,#e0e4ea);
  border-radius:9px; box-shadow:0 12px 32px rgba(0,0,0,.16); padding:8px 6px; text-align:left; }
.bt-col-toggle.open .bt-col-panel { display:block; }
.bt-col-all, .bt-col-item { color:#000 !important; }
.bt-col-all { display:flex; align-items:center; gap:8px; padding:6px 12px 8px; margin:0 0 4px;
  font-weight:600; cursor:pointer; border-bottom:1px solid #eef1f5; }
.bt-col-item { display:flex; align-items:center; gap:8px; padding:6px 12px; margin:0; cursor:pointer;
  font-weight:400; white-space:nowrap; }
.bt-col-item:hover { background:#f4f7fb; }
.bt-col-all input, .bt-col-item input { margin:0; }

/* 自定义底栏：左=行数/总数/页码，右=翻页 */
.bt-footer{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin-top:12px;padding:10px 4px;font-size:13px;color:#44506b;border-top:1px solid var(--border,#e6eaf0)}
.bt-footer-left{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.bt-footer-left label{display:inline-flex;align-items:center;gap:6px;color:#667}
.bt-pagesize{padding:5px 8px;border:1px solid var(--border,#e0e4ea);border-radius:7px;font-size:13px;background:#fff;color:#334}
.bt-footer-info{color:#667}
.bt-footer-info b{color:#1f2a44}
.bt-footer-right{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.bt-pg{display:inline-flex;align-items:center;justify-content:center;min-width:32px;height:32px;padding:0 8px;border:1px solid var(--border,#e0e4ea);border-radius:7px;color:#334;text-decoration:none;font-size:13px;transition:background .15s,border-color .15s}
.bt-pg:hover{background:#f0f4f8;border-color:#c7d2e0}
.bt-pg.active{background:var(--primary,#2b6cb0);border-color:var(--primary,#2b6cb0);color:#fff;font-weight:600}
.bt-pg.disabled{opacity:.45;pointer-events:none}
.bt-pg-ell{display:inline-flex;align-items:center;justify-content:center;min-width:24px;height:32px;color:#9aa5b8}

/* 列表复合筛选条 */
.bt-filter{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 12px;align-items:center}
.bt-filter input,.bt-filter select{padding:7px 10px;border:1px solid var(--border,#e0e4ea);border-radius:8px;font-size:13px;min-width:90px}
.bt-filter input[type=number]{width:110px}

/* 列表图片缩略图 */
.bt-thumb{width:48px;height:36px;object-fit:cover;border-radius:5px;border:1px solid var(--border,#e0e4ea);cursor:pointer;background:#eef1f5;transition:.15s}
.bt-thumb:hover{box-shadow:0 2px 8px rgba(15,76,129,.25);transform:scale(1.06)}
.locked-field{display:flex;align-items:center;gap:6px;margin-top:6px;padding:8px 12px;background:var(--bg-soft,#f4f6f9);border:1px dashed var(--border,#e0e4ea);border-radius:8px;color:var(--text,#243044)}

/* 车辆相册弹层（点击缩略图左右滑动查看全部照片） */
.vi-modal{display:none;position:fixed;inset:0;z-index:9999;background:rgba(10,18,28,.86);align-items:center;justify-content:center;touch-action:none}
.vi-modal img.vi-img{max-width:92vw;max-height:86vh;object-fit:contain;border-radius:8px;box-shadow:0 10px 40px rgba(0,0,0,.5);user-select:none;-webkit-user-drag:none}
.vi-close{position:absolute;top:18px;right:26px;color:#fff;font-size:34px;line-height:1;cursor:pointer;opacity:.85;z-index:2}
.vi-close:hover{opacity:1}
.vi-nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.4);color:#fff;border:none;width:48px;height:64px;font-size:26px;cursor:pointer;border-radius:8px;z-index:2}
.vi-nav:hover{background:rgba(0,0,0,.65)}
.vi-prev{left:18px}.vi-next{right:18px}
.vi-count{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);color:#fff;font-size:14px;background:rgba(0,0,0,.5);padding:4px 12px;border-radius:20px;z-index:2}