/* ===================================================================
   致诚机械配件部 — 全站样式 (蓝白商务风格)
   =================================================================== */

:root{
  --primary:#0A66C2;        /* 主蓝 */
  --primary-dark:#003D7A;   /* 深蓝 */
  --primary-light:#E8F1FA;  /* 浅蓝背景 */
  --accent:#00A6FB;          /* 点缀蓝 */
  --gold:#F5A623;            /* 强调金 */
  --ink:#1F2937;             /* 主文字 */
  --ink-2:#475569;           /* 次文字 */
  --ink-3:#94A3B8;           /* 浅文字 */
  --line:#E5EAF0;
  --bg:#FFFFFF;
  --bg-soft:#F7FAFC;
  --danger:#E53935;
  --success:#2E7D32;
  --shadow:0 6px 24px rgba(10,102,194,.08);
  --shadow-lg:0 12px 40px rgba(10,102,194,.14);
  --radius:10px;
  --radius-lg:16px;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--primary-dark)}
button,input,textarea,select{font-family:inherit;font-size:1rem;color:var(--ink)}
button{cursor:pointer;border:none;background:none}
ul{list-style:none}

/* ---------- 通用 ---------- */
.container{max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-title{text-align:center;margin-bottom:56px}
.section-title .eyebrow{display:inline-block;padding:6px 14px;background:var(--primary-light);color:var(--primary);font-size:.85rem;border-radius:30px;letter-spacing:1px;margin-bottom:14px}
.section-title h2{font-size:2.2rem;color:var(--ink);margin-bottom:14px;font-weight:700}
.section-title p{color:var(--ink-2);max-width:640px;margin:0 auto}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:var(--radius);font-weight:600;transition:all .25s;cursor:pointer;font-size:.95rem}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-ghost{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-ghost:hover{background:var(--primary);color:#fff}
.btn-light{background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.4);backdrop-filter:blur(6px)}
.btn-light:hover{background:#fff;color:var(--primary)}

/* ---------- 顶部条 ---------- */
.topbar{background:var(--primary-dark);color:rgba(255,255,255,.85);font-size:.85rem;padding:8px 0}
.topbar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.topbar .tb-item{display:inline-flex;align-items:center;gap:6px}
.topbar .tb-item svg{width:14px;height:14px}

/* ---------- 导航 ---------- */
.navbar{position:sticky;top:0;background:#fff;box-shadow:0 2px 14px rgba(0,0,0,.06);z-index:100;transition:all .3s}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 0}
.logo{display:flex;align-items:center;gap:12px;color:var(--ink);font-weight:700}
.logo .logo-icon{width:46px;height:46px;background:linear-gradient(135deg,var(--primary),var(--accent));border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:1.4rem;box-shadow:var(--shadow)}
.logo .logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo .logo-text strong{font-size:1.15rem;color:var(--primary-dark)}
.logo .logo-text span{font-size:.72rem;color:var(--ink-3);margin-top:2px;letter-spacing:1px}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-links a{padding:8px 16px;color:var(--ink-2);font-weight:500;border-radius:8px;transition:all .2s}
.nav-links a:hover, .nav-links a.active{color:var(--primary);background:var(--primary-light)}
.nav-cta{display:flex;align-items:center;gap:12px}
.nav-cta .login-link{color:var(--ink-2);font-weight:500}
.nav-cta .login-link:hover{color:var(--primary)}

.menu-toggle{display:none;width:40px;height:40px;border-radius:8px;background:var(--primary-light);color:var(--primary);align-items:center;justify-content:center}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:560px;background:linear-gradient(135deg,rgba(0,61,122,.92),rgba(10,102,194,.85)),url('images/product-circular-machine.jpeg') center/cover;color:#fff;display:flex;align-items:center;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 30%,rgba(0,166,251,.35),transparent 60%);pointer-events:none}
.hero-inner{position:relative;z-index:2;max-width:760px}
.hero h1{font-size:3.2rem;font-weight:800;line-height:1.2;margin-bottom:20px;letter-spacing:1px}
.hero h1 span{color:#FFD66B}
.hero p{font-size:1.15rem;opacity:.92;margin-bottom:36px;max-width:600px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:48px;margin-top:56px;flex-wrap:wrap}
.hero-stats .stat strong{display:block;font-size:2.2rem;font-weight:800;color:#FFD66B;line-height:1}
.hero-stats .stat span{font-size:.85rem;opacity:.85}

/* ---------- 业务领域 ---------- */
.biz-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.biz-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px 24px;text-align:center;transition:all .3s;position:relative;overflow:hidden}
.biz-card::before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--primary),var(--accent));transform:scaleX(0);transform-origin:left;transition:transform .35s}
.biz-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.biz-card:hover::before{transform:scaleX(1)}
.biz-icon{width:64px;height:64px;margin:0 auto 18px;background:var(--primary-light);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--primary)}
.biz-icon svg{width:32px;height:32px}
.biz-card h3{font-size:1.1rem;margin-bottom:10px;color:var(--ink)}
.biz-card p{color:var(--ink-2);font-size:.9rem}

/* ---------- 产品中心 ---------- */
.products-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px}
.product-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);transition:all .3s;display:flex;flex-direction:column}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.product-thumb{aspect-ratio:1/1;background:var(--bg-soft);position:relative;overflow:hidden}
.product-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.product-card:hover .product-thumb img{transform:scale(1.06)}
.product-tag{position:absolute;top:12px;left:12px;padding:4px 12px;background:var(--primary);color:#fff;font-size:.75rem;border-radius:30px}
.product-info{padding:18px 18px 22px;flex:1;display:flex;flex-direction:column}
.product-info h3{font-size:1.05rem;margin-bottom:6px;color:var(--ink)}
.product-info .cat{font-size:.8rem;color:var(--primary);margin-bottom:10px}
.product-info p{color:var(--ink-2);font-size:.88rem;flex:1;margin-bottom:14px;line-height:1.5}
.product-info .price-row{display:flex;align-items:center;justify-content:space-between;margin-top:auto}
.product-info .price{color:var(--danger);font-weight:700;font-size:1.05rem}
.product-info .inquire{font-size:.85rem;color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:4px}

/* ---------- 关于我们 ---------- */
.about{background:var(--bg-soft)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-img-wrap{position:relative}
.about-img-wrap img{border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}
.about-img-wrap .badge{position:absolute;bottom:-20px;right:-20px;background:var(--primary);color:#fff;padding:18px 24px;border-radius:var(--radius);box-shadow:var(--shadow)}
.about-img-wrap .badge strong{display:block;font-size:1.8rem;font-weight:800;line-height:1}
.about-img-wrap .badge span{font-size:.85rem;opacity:.9}
.about-content h2{font-size:2.2rem;margin-bottom:18px;color:var(--ink)}
.about-content h2 span{color:var(--primary)}
.about-content>p{color:var(--ink-2);margin-bottom:18px;font-size:1rem}
.about-features{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:24px}
.about-feature{display:flex;gap:14px;align-items:flex-start}
.about-feature .af-icon{flex-shrink:0;width:42px;height:42px;border-radius:10px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center}
.about-feature strong{display:block;color:var(--ink);font-size:.95rem;margin-bottom:4px}
.about-feature span{color:var(--ink-2);font-size:.85rem}

/* ---------- 优势 ---------- */
.advantages-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px;margin-top:40px}
.adv-card{padding:28px;background:#fff;border-radius:var(--radius);border:1px solid var(--line);transition:all .25s;text-align:center}
.adv-card:hover{border-color:var(--primary);box-shadow:var(--shadow)}
.adv-num{font-size:2.4rem;font-weight:800;color:var(--primary);line-height:1;margin-bottom:8px}
.adv-card h4{font-size:1rem;color:var(--ink);margin-bottom:8px}
.adv-card p{font-size:.88rem;color:var(--ink-2)}

/* ---------- 询价表单 ---------- */
.inquiry{background:linear-gradient(135deg,var(--primary-dark),var(--primary));color:#fff;position:relative;overflow:hidden}
.inquiry::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 30%,rgba(255,214,107,.2),transparent 50%);pointer-events:none}
.inquiry .container{position:relative;z-index:2}
.inquiry .section-title h2, .inquiry .section-title p{color:#fff}
.inquiry .section-title p{opacity:.85}
.inquiry-form{max-width:780px;margin:0 auto;background:#fff;color:var(--ink);border-radius:var(--radius-lg);padding:36px;box-shadow:var(--shadow-lg)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.form-group{display:flex;flex-direction:column}
.form-group label{font-size:.85rem;color:var(--ink-2);margin-bottom:6px;font-weight:500}
.form-group label .req{color:var(--danger)}
.form-group input, .form-group select, .form-group textarea{padding:12px 14px;border:1px solid var(--line);border-radius:8px;background:#fff;transition:border-color .2s;outline:none}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(10,102,194,.12)}
.form-group textarea{resize:vertical;min-height:110px}
.form-full{grid-column:1/-1}
.form-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:8px}
.form-actions .btn{padding:14px 32px}

/* ---------- 联系信息 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:40px;align-items:stretch}
.contact-cards{display:flex;flex-direction:column;gap:16px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:flex;gap:14px;align-items:flex-start;transition:all .25s}
.contact-card:hover{border-color:var(--primary);box-shadow:var(--shadow)}
.contact-card .cc-icon{flex-shrink:0;width:48px;height:48px;background:var(--primary-light);color:var(--primary);border-radius:10px;display:flex;align-items:center;justify-content:center}
.contact-card h4{font-size:1rem;color:var(--ink);margin-bottom:6px}
.contact-card p{color:var(--ink-2);font-size:.9rem;line-height:1.5}
.map-wrap{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);min-height:420px;background:var(--bg-soft)}
.map-wrap iframe{width:100%;height:100%;min-height:420px;border:0;display:block}

/* ---------- Footer ---------- */
.footer{background:var(--primary-dark);color:rgba(255,255,255,.8);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:48px;margin-bottom:40px}
.footer h4{color:#fff;font-size:1.05rem;margin-bottom:18px;font-weight:600}
.footer-brand p{font-size:.9rem;line-height:1.7;opacity:.8;margin:14px 0}
.footer ul li{margin-bottom:10px;font-size:.9rem;opacity:.8}
.footer ul li a{color:rgba(255,255,255,.8);transition:color .2s}
.footer ul li a:hover{color:#FFD66B}
.footer .contact-line{display:flex;align-items:center;gap:8px;margin-bottom:10px;font-size:.9rem;opacity:.85}
.footer .qr{display:flex;gap:14px;margin-top:14px}
.footer .qr-box{width:88px;text-align:center;font-size:.75rem;opacity:.85}
.footer .qr-box .qr-img{width:88px;height:88px;background:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:.7rem;padding:8px}
.footer .qr-box .qr-img svg{width:100%;height:100%}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;text-align:center;font-size:.82rem;opacity:.6}

/* ---------- 产品列表页 ---------- */
.page-hero{background:linear-gradient(135deg,var(--primary-dark),var(--primary));color:#fff;padding:60px 0;text-align:center}
.page-hero h1{font-size:2.4rem;margin-bottom:8px;font-weight:700}
.page-hero .breadcrumb{opacity:.85;font-size:.9rem}
.page-hero .breadcrumb a{color:#FFD66B}

.filter-bar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;background:#fff;padding:18px 22px;border-radius:var(--radius);box-shadow:var(--shadow);margin:-30px auto 36px;position:relative;z-index:3;max-width:1240px}
.filter-bar .filter-tabs{display:flex;flex-wrap:wrap;gap:8px}
.filter-tab{padding:8px 18px;border-radius:30px;border:1px solid var(--line);color:var(--ink-2);font-size:.9rem;cursor:pointer;transition:all .2s;background:#fff}
.filter-tab:hover{border-color:var(--primary);color:var(--primary)}
.filter-tab.active{background:var(--primary);border-color:var(--primary);color:#fff}
.search-box{display:flex;align-items:center;gap:8px;background:var(--bg-soft);padding:8px 14px;border-radius:30px}
.search-box input{border:none;background:transparent;outline:none;width:200px;font-size:.9rem}

/* ---------- 登录页 ---------- */
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#003D7A 0%,#0A66C2 100%);padding:24px;position:relative;overflow:hidden}
.login-page::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30% 30%,rgba(0,166,251,.4),transparent 50%),radial-gradient(circle at 70% 70%,rgba(255,214,107,.2),transparent 50%)}
.login-card{background:#fff;border-radius:var(--radius-lg);padding:40px;width:100%;max-width:420px;box-shadow:var(--shadow-lg);position:relative;z-index:2}
.login-card .logo{display:flex;justify-content:center;margin-bottom:24px}
.login-card h2{text-align:center;font-size:1.4rem;margin-bottom:8px}
.login-card .sub{text-align:center;color:var(--ink-2);font-size:.9rem;margin-bottom:24px}
.login-form .form-group{margin-bottom:16px}
.login-form .btn{width:100%;padding:14px}
.login-tip{margin-top:16px;text-align:center;font-size:.82rem;color:var(--ink-3)}
.login-tip code{background:var(--bg-soft);padding:2px 6px;border-radius:4px;color:var(--primary)}

/* ---------- 管理后台 ---------- */
.admin-layout{display:grid;grid-template-columns:240px 1fr;min-height:100vh}
.admin-sidebar{background:var(--primary-dark);color:#fff;padding:24px 0;position:sticky;top:0;height:100vh;overflow-y:auto}
.admin-sidebar .logo{padding:0 24px 24px;border-bottom:1px solid rgba(255,255,255,.1);color:#fff;margin-bottom:18px}
.admin-sidebar .logo .logo-text strong{color:#fff}
.admin-sidebar .logo .logo-text span{color:rgba(255,255,255,.55)}
.admin-nav a{display:flex;align-items:center;gap:12px;padding:12px 24px;color:rgba(255,255,255,.7);font-size:.95rem;transition:all .2s;border-left:3px solid transparent}
.admin-nav a:hover{background:rgba(255,255,255,.05);color:#fff}
.admin-nav a.active{background:rgba(0,166,251,.18);color:#fff;border-left-color:var(--accent)}
.admin-nav a svg{width:18px;height:18px}
.admin-main{background:var(--bg-soft);padding:0}
.admin-header{background:#fff;padding:16px 32px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.admin-header h1{font-size:1.25rem;color:var(--ink)}
.admin-user{display:flex;align-items:center;gap:12px}
.admin-user .avatar{width:38px;height:38px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700}
.admin-content{padding:28px 32px}
.admin-section{display:none}
.admin-section.active{display:block}
.admin-section-title{font-size:1.1rem;color:var(--ink);margin-bottom:18px;display:flex;justify-content:space-between;align-items:center}

/* KPI Cards */
.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-bottom:24px}
.kpi-card{background:#fff;border-radius:var(--radius);padding:22px;border:1px solid var(--line);display:flex;gap:16px;align-items:center;transition:all .25s}
.kpi-card:hover{box-shadow:var(--shadow);border-color:transparent}
.kpi-icon{width:54px;height:54px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0}
.kpi-icon.b1{background:linear-gradient(135deg,#0A66C2,#00A6FB)}
.kpi-icon.b2{background:linear-gradient(135deg,#F5A623,#FFD66B)}
.kpi-icon.b3{background:linear-gradient(135deg,#2E7D32,#66BB6A)}
.kpi-icon.b4{background:linear-gradient(135deg,#E53935,#FF7043)}
.kpi-info small{color:var(--ink-3);font-size:.82rem}
.kpi-info strong{display:block;font-size:1.65rem;color:var(--ink);font-weight:700;margin:2px 0}

/* Cards */
.card{background:#fff;border-radius:var(--radius);border:1px solid var(--line);padding:24px;margin-bottom:18px}
.card-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.card-head h3{font-size:1.05rem;color:var(--ink)}

/* Charts */
.charts-grid{display:grid;grid-template-columns:2fr 1fr;gap:18px;margin-bottom:18px}
.chart-box{height:280px;position:relative}
.chart-box canvas{max-height:260px}

/* Tables */
.table-wrap{overflow-x:auto;background:#fff;border-radius:var(--radius);border:1px solid var(--line)}
table{width:100%;border-collapse:collapse}
table th, table td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:.92rem}
table th{background:var(--bg-soft);color:var(--ink-2);font-weight:600;font-size:.82rem;text-transform:uppercase;letter-spacing:.5px}
table tbody tr:hover{background:var(--primary-light)}
.badge-status{display:inline-block;padding:3px 10px;font-size:.75rem;border-radius:30px;font-weight:600}
.badge-status.new{background:#E3F2FD;color:#1976D2}
.badge-status.progress{background:#FFF3E0;color:#F57C00}
.badge-status.done{background:#E8F5E9;color:#2E7D32}
.badge-status.archived{background:#F5F5F5;color:#757575}

/* Buttons */
.btn-sm{padding:6px 12px;font-size:.82rem;border-radius:6px}
.btn-edit{background:var(--primary-light);color:var(--primary)}
.btn-edit:hover{background:var(--primary);color:#fff}
.btn-del{background:#FFEBEE;color:var(--danger)}
.btn-del:hover{background:var(--danger);color:#fff}
.icon-btn{width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;border-radius:6px;color:var(--ink-2);transition:all .2s}
.icon-btn:hover{background:var(--primary-light);color:var(--primary)}

/* Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);display:none;align-items:center;justify-content:center;z-index:1000;padding:20px}
.modal-overlay.show{display:flex}
.modal{background:#fff;border-radius:var(--radius-lg);width:100%;max-width:560px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg)}
.modal-head{padding:20px 24px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;background:#fff;z-index:2}
.modal-head h3{font-size:1.1rem}
.modal-body{padding:24px}
.modal-foot{padding:16px 24px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px;background:var(--bg-soft)}

/* Toast */
.toast{position:fixed;top:24px;right:24px;background:#fff;border-radius:8px;padding:14px 22px;box-shadow:var(--shadow-lg);border-left:4px solid var(--success);display:none;align-items:center;gap:12px;z-index:2000;animation:slideIn .3s ease}
.toast.show{display:flex}
.toast.error{border-left-color:var(--danger)}
@keyframes slideIn{from{transform:translateX(20px);opacity:0}to{transform:translateX(0);opacity:1}}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px){
  .hero h1{font-size:2.4rem}
  .about-grid{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .contact-grid{grid-template-columns:1fr}
  .charts-grid{grid-template-columns:1fr}
}
@media (max-width: 768px){
  .nav-links{display:none}
  .menu-toggle{display:flex}
  .nav-links.open{display:flex;flex-direction:column;position:absolute;top:100%;left:0;right:0;background:#fff;padding:16px;box-shadow:var(--shadow)}
  .hero{min-height:auto;padding:60px 0}
  .hero h1{font-size:1.9rem}
  .hero-stats{gap:24px;margin-top:32px}
  .hero-stats .stat strong{font-size:1.5rem}
  .section{padding:50px 0}
  .section-title h2{font-size:1.6rem}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .topbar{font-size:.75rem}
  .admin-layout{grid-template-columns:1fr}
  .admin-sidebar{position:fixed;left:-240px;width:240px;z-index:200;transition:left .3s}
  .admin-sidebar.open{left:0}
  .filter-bar{flex-direction:column;align-items:stretch}
  .search-box input{width:100%}
}