/* ========== 基础重置与全局样式 ========== */
:root {
    --primary: #1a2a3a;
    --primary-dark: #0f1a24;
    --gold: #c9a86c;
    --gold-light: #e8d5a8;
    --gold-dark: #a8874a;
    --white: #ffffff;
    --light-bg: #f8f6f2;
    --text-dark: #2c2c2c;
    --text-muted: #666666;
    --border-color: #e8e4dc;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --transition: all 0.3s ease;
    --radius: 8px;
    --radius-lg: 16px;
}

* { margin:0; padding:0; box-sizing:border-box; }
body {
    font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
    color:var(--text-dark); line-height:1.7; background:var(--white);
    -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
}
a { text-decoration:none; color:inherit; transition:var(--transition); }
a:hover { color:var(--gold); }
ul,ol { list-style:none; }
img { max-width:100%; height:auto; display:block; }
.container { max-width:1200px; margin:0 auto; padding:0 20px; }

/* ========== 顶部栏 ========== */
.top-bar { background:var(--white); border-bottom:1px solid var(--border-color); padding:0; position:sticky; top:0; z-index:1000; box-shadow:0 2px 10px rgba(0,0,0,0.04); }
.top-bar-inner { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; padding:12px 20px; max-width:1200px; margin:0 auto; position:relative; }
.logo { display:flex; align-items:center; gap:10px; flex-shrink:0; }
.logo-icon { width:48px; height:48px; background:linear-gradient(135deg,var(--primary),var(--gold)); border-radius:50%; display:flex; align-items:center; justify-content:center; color:var(--white); font-weight:bold; font-size:18px; letter-spacing:1px; flex-shrink:0; }
.logo-text { font-size:22px; font-weight:700; color:var(--primary); letter-spacing:1px; }
.logo-text span { color:var(--gold); }
.logo-sub { font-size:10px; color:var(--text-muted); letter-spacing:2px; text-transform:uppercase; display:block; }
.main-nav { display:flex; align-items:center; gap:4px; }
.main-nav a { padding:8px 16px; font-size:15px; font-weight:500; color:var(--text-dark); border-radius:6px; position:relative; transition:var(--transition); white-space:nowrap; }
.main-nav a:hover, .main-nav a.active { color:var(--gold-dark); background:rgba(201,168,108,0.08); }
.main-nav a.active::after { content:''; position:absolute; bottom:2px; left:50%; transform:translateX(-50%); width:20px; height:2px; background:var(--gold); border-radius:2px; }
.main-nav a i { margin-right:4px; font-size:13px; }
.top-actions { display:flex; align-items:center; gap:10px; flex-shrink:0; flex-direction:column; align-items:flex-end; }
.btn-group { display:flex; gap:10px; }
.btn { display:inline-flex; align-items:center; gap:6px; padding:10px 22px; border-radius:50px; font-size:14px; font-weight:600; cursor:pointer; border:none; transition:var(--transition); text-align:center; justify-content:center; letter-spacing:0.5px; white-space:nowrap; }
.btn-primary { background:linear-gradient(135deg,var(--gold),var(--gold-dark)); color:var(--white); box-shadow:0 4px 15px rgba(201,168,108,0.35); }
.btn-primary:hover { background:linear-gradient(135deg,var(--gold-dark),#8a6d38); box-shadow:0 6px 20px rgba(201,168,108,0.5); transform:translateY(-2px); color:var(--white); }
.btn-outline { background:transparent; color:var(--primary); border:2px solid var(--primary); }
.btn-outline:hover { background:var(--primary); color:var(--white); transform:translateY(-2px); }
.btn-sm { padding:8px 16px; font-size:13px; }
.top-qq { font-size:12px; color:var(--text-muted); display:flex; align-items:center; gap:5px; margin-top:4px; }
.top-qq i { color:#12b7f5; font-size:14px; }
.top-qq a { color:#12b7f5; font-weight:500; }
.top-qq a:hover { text-decoration:underline; }

.hamburger { display:none; flex-direction:column; gap:5px; cursor:pointer; padding:8px; background:none; border:none; z-index:1001; }
.hamburger span { width:28px; height:3px; background:var(--primary); border-radius:3px; transition:var(--transition); display:block; }
.hamburger.active span:nth-child(1) { transform:translateY(8px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity:0; }
.hamburger.active span:nth-child(3) { transform:translateY(-8px) rotate(-45deg); }

.mobile-nav { display:none; position:fixed; top:0; left:0; right:0; bottom:0; background:rgba(255,255,255,0.98); z-index:999; padding:80px 30px 30px; overflow-y:auto; flex-direction:column; gap:8px; }
.mobile-nav.open { display:flex; }
.mobile-nav a { font-size:18px; font-weight:500; padding:14px 20px; border-radius:8px; color:var(--text-dark); display:flex; align-items:center; gap:12px; border-bottom:1px solid var(--border-color); }
.mobile-nav a:hover, .mobile-nav a.active { background:rgba(201,168,108,0.1); color:var(--gold-dark); }
.mobile-nav a i { width:24px; text-align:center; color:var(--gold); }
.mobile-nav .btn-group-mobile { display:flex; gap:12px; margin-top:20px; }
.mobile-nav .btn-group-mobile .btn { flex:1; }

/* ========== 底部 ========== */
.footer { background:var(--white); border-top:3px solid var(--gold); padding:50px 0 0; margin-top:60px; }
.footer-inner { display:grid; grid-template-columns:2fr 1fr 1.5fr; gap:40px; padding-bottom:40px; }
.footer h3 { font-size:16px; font-weight:700; color:var(--primary); margin-bottom:18px; position:relative; padding-bottom:10px; }
.footer h3::after { content:''; position:absolute; bottom:0; left:0; width:30px; height:3px; background:var(--gold); border-radius:2px; }
.footer-about p { font-size:14px; color:var(--text-muted); line-height:1.8; margin-bottom:15px; }
.footer-about .footer-logo { display:flex; align-items:center; gap:10px; margin-bottom:15px; }
.footer-about .footer-logo .logo-icon { width:40px; height:40px; font-size:14px; }
.footer-about .footer-logo .logo-text { font-size:18px; }
.footer-links ul li { margin-bottom:10px; }
.footer-links ul li a { font-size:14px; color:var(--text-muted); display:flex; align-items:center; gap:6px; }
.footer-links ul li a i { font-size:10px; color:var(--gold); }
.footer-links ul li a:hover { color:var(--gold-dark); transform:translateX(4px); }
.footer-contact ul li { display:flex; align-items:flex-start; gap:12px; margin-bottom:14px; font-size:14px; color:var(--text-muted); }
.footer-contact ul li i { color:var(--gold); font-size:16px; margin-top:3px; width:20px; text-align:center; }
.footer-contact ul li a { color:var(--text-muted); }
.footer-contact ul li a:hover { color:var(--gold-dark); }
.footer-bottom { border-top:1px solid var(--border-color); padding:18px 0; text-align:center; font-size:13px; color:var(--text-muted); display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:10px; }
.footer-bottom a { color:var(--text-muted); }
.footer-bottom a:hover { color:var(--gold-dark); }
.footer-bottom .footer-admin-link { display:inline-flex; align-items:center; gap:5px; padding:6px 14px; background:var(--light-bg); border-radius:20px; font-size:12px; }
.footer-bottom .footer-admin-link:hover { background:var(--gold); color:var(--white); }
.footer-disclaimer { font-size:12px; color:#999; line-height:1.6; padding:15px 0; border-top:1px solid #f0f0f0; text-align:center; max-width:900px; margin:0 auto; }

/* ========== 移动端底部固定按钮 ========== */
.mobile-fixed-btns { display:none; position:fixed; bottom:0; left:0; right:0; z-index:999; background:var(--white); padding:10px 16px; gap:10px; box-shadow:0 -4px 20px rgba(0,0,0,0.1); border-top:2px solid var(--gold); padding-bottom:calc(10px + env(safe-area-inset-bottom)); }
.mobile-fixed-btns .btn { flex:1; padding:12px; font-size:15px; }

/* ========== 首页 Hero ========== */
.hero { background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 40%,#1e3a5f 100%); color:var(--white); padding:80px 0; position:relative; overflow:hidden; min-height:500px; display:flex; align-items:center; }
.hero::before { content:''; position:absolute; top:-50%; right:-20%; width:500px; height:500px; border-radius:50%; background:radial-gradient(circle,rgba(201,168,108,0.15),transparent 70%); animation:heroGlow 6s ease-in-out infinite; }
.hero::after { content:''; position:absolute; bottom:-30%; left:-10%; width:400px; height:400px; border-radius:50%; background:radial-gradient(circle,rgba(201,168,108,0.1),transparent 70%); animation:heroGlow 8s ease-in-out infinite reverse; }
@keyframes heroGlow { 0%,100% { transform:scale(1); opacity:0.6; } 50% { transform:scale(1.2); opacity:1; } }
.hero-inner { position:relative; z-index:1; max-width:700px; }
.hero h1 { font-size:42px; font-weight:700; line-height:1.3; margin-bottom:15px; letter-spacing:1px; }
.hero h1 .highlight { color:var(--gold); }
.hero p { font-size:18px; color:rgba(255,255,255,0.8); margin-bottom:30px; line-height:1.8; max-width:550px; }
.hero-btns { display:flex; gap:15px; flex-wrap:wrap; }
.hero-btns .btn { padding:14px 30px; font-size:16px; }
.hero-stats { display:flex; gap:40px; margin-top:40px; flex-wrap:wrap; }
.hero-stat { text-align:center; }
.hero-stat .number { font-size:32px; font-weight:700; color:var(--gold); display:block; }
.hero-stat .label { font-size:13px; color:rgba(255,255,255,0.7); letter-spacing:1px; }

/* ========== 区块通用 ========== */
.section { padding:60px 0; }
.section-header { text-align:center; margin-bottom:40px; }
.section-header h2 { font-size:32px; font-weight:700; color:var(--primary); margin-bottom:10px; }
.section-header .subtitle { font-size:15px; color:var(--text-muted); max-width:600px; margin:0 auto; }
.section-header .divider { width:60px; height:3px; background:var(--gold); margin:15px auto 0; border-radius:3px; }

/* ========== 产品卡片 ========== */
.products-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(220px,1fr)); gap:20px; }
.product-card { background:var(--white); border:1px solid var(--border-color); border-radius:var(--radius-lg); padding:28px 20px; text-align:center; transition:var(--transition); cursor:pointer; }
.product-card:hover { box-shadow:var(--shadow-lg); transform:translateY(-5px); border-color:var(--gold); }
.product-card .icon { width:60px; height:60px; border-radius:50%; background:linear-gradient(135deg,rgba(201,168,108,0.15),rgba(201,168,108,0.05)); display:flex; align-items:center; justify-content:center; margin:0 auto 15px; font-size:24px; color:var(--gold-dark); }
.product-card h3 { font-size:17px; font-weight:600; margin-bottom:8px; color:var(--primary); }
.product-card p { font-size:13px; color:var(--text-muted); line-height:1.6; }

/* ========== 新闻卡片 ========== */
.news-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(300px,1fr)); gap:20px; }
.news-card { background:var(--white); border:1px solid var(--border-color); border-radius:var(--radius-lg); overflow:hidden; transition:var(--transition); }
.news-card:hover { box-shadow:var(--shadow-lg); transform:translateY(-4px); }
.news-card .news-img { height:180px; background:linear-gradient(135deg,var(--primary),#2c4a6e); display:flex; align-items:center; justify-content:center; color:rgba(255,255,255,0.6); font-size:40px; }
.news-card .news-body { padding:20px; }
.news-card .news-date { font-size:12px; color:var(--gold-dark); margin-bottom:8px; display:flex; align-items:center; gap:5px; }
.news-card h3 { font-size:16px; font-weight:600; margin-bottom:10px; color:var(--primary); line-height:1.5; }
.news-card p { font-size:13px; color:var(--text-muted); line-height:1.7; display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical; overflow:hidden; }

/* ========== CTA区域 ========== */
.cta-section { background:linear-gradient(135deg,var(--primary),var(--primary-dark)); padding:60px 0; color:var(--white); text-align:center; position:relative; overflow:hidden; }
.cta-section h2 { font-size:32px; font-weight:700; margin-bottom:15px; }
.cta-section p { font-size:16px; color:rgba(255,255,255,0.8); margin-bottom:25px; max-width:500px; margin-left:auto; margin-right:auto; }
.cta-section .btn { padding:14px 35px; font-size:16px; }

/* ========== 表格样式 ========== */
.table-responsive { overflow-x:auto; }
.table { width:100%; border-collapse:collapse; font-size:14px; }
.table th, .table td { padding:14px 16px; text-align:left; border-bottom:1px solid var(--border-color); }
.table th { background:var(--light-bg); font-weight:600; color:var(--primary); white-space:nowrap; }
.table tr:hover td { background:#faf9f7; }

/* ========== 后台样式 ========== */
.admin-layout { display:flex; min-height:100vh; background:#f5f5f5; }
.admin-sidebar { width:250px; background:var(--primary); color:var(--white); padding:20px 0; flex-shrink:0; position:fixed; top:0; bottom:0; left:0; overflow-y:auto; z-index:100; }
.admin-sidebar .admin-logo { padding:15px 25px; font-size:20px; font-weight:700; border-bottom:1px solid rgba(255,255,255,0.1); margin-bottom:20px; display:flex; align-items:center; gap:10px; }
.admin-sidebar .admin-logo span { color:var(--gold); }
.admin-sidebar a { display:flex; align-items:center; gap:12px; padding:14px 25px; color:rgba(255,255,255,0.7); font-size:15px; transition:var(--transition); border-left:3px solid transparent; }
.admin-sidebar a:hover, .admin-sidebar a.active { background:rgba(201,168,108,0.15); color:var(--white); border-left-color:var(--gold); }
.admin-sidebar a i { width:20px; text-align:center; }
.admin-main { flex:1; margin-left:250px; padding:30px; min-height:100vh; }
.admin-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:30px; flex-wrap:wrap; gap:15px; }
.admin-header h1 { font-size:24px; color:var(--primary); }
.admin-card { background:var(--white); border-radius:var(--radius-lg); padding:25px; box-shadow:var(--shadow); margin-bottom:25px; }
.admin-form-group { margin-bottom:18px; }
.admin-form-group label { display:block; font-size:14px; font-weight:600; color:var(--primary); margin-bottom:6px; }
.admin-form-group input, .admin-form-group select, .admin-form-group textarea { width:100%; padding:10px 14px; border:1px solid var(--border-color); border-radius:6px; font-size:14px; font-family:inherit; transition:var(--transition); outline:none; }
.admin-form-group input:focus, .admin-form-group select:focus, .admin-form-group textarea:focus { border-color:var(--gold); box-shadow:0 0 0 3px rgba(201,168,108,0.15); }
.admin-form-group textarea { min-height:120px; resize:vertical; }
.admin-table { width:100%; border-collapse:collapse; font-size:14px; }
.admin-table th, .admin-table td { padding:12px 14px; text-align:left; border-bottom:1px solid var(--border-color); }
.admin-table th { background:var(--light-bg); font-weight:600; color:var(--primary); }
.admin-table .actions { display:flex; gap:8px; }
.admin-table .btn { padding:6px 12px; font-size:12px; }
.alert { padding:14px 18px; border-radius:6px; margin-bottom:20px; font-size:14px; }
.alert-success { background:#d4edda; color:#155724; border:1px solid #c3e6cb; }
.alert-error { background:#f8d7da; color:#721c24; border:1px solid #f5c6cb; }
.alert-info { background:#d1ecf1; color:#0c5460; border:1px solid #bee5eb; }

/* ========== 面包屑 ========== */
.breadcrumb { background:var(--light-bg); padding:15px 0; font-size:13px; color:var(--text-muted); }
.breadcrumb a { color:var(--text-muted); }
.breadcrumb a:hover { color:var(--gold-dark); }
.breadcrumb span { margin:0 8px; color:#ccc; }

/* ========== 页面标题区域 ========== */
.page-header { background:linear-gradient(135deg,var(--primary),#2c4a6e); color:var(--white); padding:50px 0; text-align:center; }
.page-header h1 { font-size:36px; font-weight:700; margin-bottom:10px; }
.page-header p { font-size:15px; color:rgba(255,255,255,0.75); max-width:500px; margin:0 auto; }

/* ========== 联系表单 ========== */
.contact-form input, .contact-form textarea { width:100%; padding:12px 16px; border:1px solid var(--border-color); border-radius:6px; font-size:14px; font-family:inherit; margin-bottom:15px; transition:var(--transition); outline:none; background:var(--white); }
.contact-form input:focus, .contact-form textarea:focus { border-color:var(--gold); box-shadow:0 0 0 3px rgba(201,168,108,0.15); }
.contact-form textarea { min-height:130px; resize:vertical; }

/* ========== 网站地图 ========== */
.sitemap-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(250px,1fr)); gap:20px; }
.sitemap-card { background:var(--white); border:1px solid var(--border-color); border-radius:var(--radius-lg); padding:20px; transition:var(--transition); }
.sitemap-card:hover { box-shadow:var(--shadow); border-color:var(--gold); }
.sitemap-card h3 { font-size:16px; font-weight:600; color:var(--primary); margin-bottom:12px; display:flex; align-items:center; gap:8px; }
.sitemap-card ul li { padding:5px 0; }
.sitemap-card ul li a { font-size:14px; color:var(--text-muted); display:flex; align-items:center; gap:6px; }
.sitemap-card ul li a:hover { color:var(--gold-dark); }

/* ========== 响应式设计 ========== */
@media (max-width: 992px) {
    .top-bar-inner { flex-wrap:nowrap; padding:10px 15px; }
    .main-nav { display:none; }
    .hamburger { display:flex; }
    .top-actions { flex-direction:row; align-items:center; gap:8px; }
    .top-actions .btn { padding:8px 14px; font-size:12px; }
    .top-qq { display:none; }
    .btn-group { gap:6px; }
    .footer-inner { grid-template-columns:1fr 1fr; gap:25px; }
    .hero h1 { font-size:32px; }
    .hero { padding:50px 0; min-height:400px; }
    .section { padding:40px 0; }
    .section-header h2 { font-size:26px; }
    .mobile-fixed-btns { display:flex; }
    body { padding-bottom:70px; }
    .footer { margin-bottom:60px; }
    .admin-sidebar { width:200px; }
    .admin-main { margin-left:200px; padding:20px; }
    .admin-sidebar a { padding:12px 18px; font-size:14px; }
}

@media (max-width: 768px) {
    .top-bar-inner { padding:8px 12px; }
    .logo-icon { width:38px; height:38px; font-size:14px; }
    .logo-text { font-size:17px; }
    .logo-sub { font-size:8px; }
    .top-actions .btn { padding:7px 10px; font-size:11px; }
    .btn-group { gap:4px; }
    .footer-inner { grid-template-columns:1fr; gap:20px; padding-bottom:25px; }
    .hero h1 { font-size:24px; }
    .hero p { font-size:15px; }
    .hero { padding:35px 0; min-height:350px; }
    .hero-stats { gap:20px; margin-top:25px; }
    .hero-stat .number { font-size:24px; }
    .section { padding:30px 0; }
    .section-header h2 { font-size:22px; }
    .products-grid { grid-template-columns:repeat(2,1fr); gap:12px; }
    .news-grid { grid-template-columns:1fr; }
    .cta-section h2 { font-size:24px; }
    .admin-layout { flex-direction:column; }
    .admin-sidebar { position:relative; width:100%; padding:0; overflow-y:visible; }
    .admin-sidebar .admin-logo { padding:12px 20px; margin-bottom:0; font-size:16px; }
    .admin-sidebar a { padding:10px 20px; font-size:13px; display:inline-flex; border-left:none; border-bottom:2px solid transparent; }
    .admin-sidebar a:hover, .admin-sidebar a.active { border-left:none; border-bottom-color:var(--gold); }
    .admin-main { margin-left:0; padding:15px; }
    .admin-header h1 { font-size:20px; }
}

@media (max-width: 480px) {
    .logo-text { font-size:15px; }
    .logo-icon { width:32px; height:32px; font-size:12px; }
    .top-actions .btn { padding:6px 8px; font-size:10px; border-radius:20px; }
    .top-actions .btn i { display:none; }
    .hero h1 { font-size:20px; }
    .products-grid { grid-template-columns:1fr; }
    .section-header h2 { font-size:20px; }
    .mobile-fixed-btns { padding:8px 10px; padding-bottom:calc(8px + env(safe-area-inset-bottom)); }
    .mobile-fixed-btns .btn { padding:10px 8px; font-size:13px; }
    .footer { padding:30px 0 0; }
    .footer-bottom { flex-direction:column; gap:8px; text-align:center; }
}