/* ============================================================
   中科博研 智慧职称服务平台 - 主样式表
   主色: #1a3a5c (深蓝)  辅色: #c9a96e (金色)
   ============================================================ */

:root {
  --primary: #1a3a5c;
  --primary-light: #2a5a8c;
  --primary-dark: #0f2440;
  --accent: #c9a96e;
  --accent-light: #e0c98a;
  --accent-dark: #a8884e;
  --white: #ffffff;
  --gray-50: #f8f9fa;
  --gray-100: #f0f1f3;
  --gray-200: #e2e4e7;
  --gray-300: #ced1d6;
  --gray-400: #9ca0a8;
  --gray-500: #6c717a;
  --gray-600: #4a4e55;
  --gray-700: #353840;
  --gray-800: #22252a;
  --gray-900: #14161a;
  --red: #d9534f;
  --green: #28a745;
  --blue: #1e90ff;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow: 0 4px 12px rgba(0,0,0,.1);
  --shadow-lg: 0 10px 30px rgba(0,0,0,.15);
  --radius: 8px;
  --radius-lg: 16px;
  --transition: all .3s ease;
  --max-width: 1200px;
  --header-h: 72px;
}

* { margin:0; padding:0; box-sizing:border-box; }

html { scroll-behavior:smooth; font-size:16px; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--gray-700);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration:none; transition: var(--transition); }
a:hover { color: var(--accent-dark); }
img { max-width:100%; height:auto; display:block; }

/* 容器 */
.container { max-width: var(--max-width); margin:0 auto; padding:0 20px; }

/* ==================== 头部 ==================== */
.header {
  position: fixed; top:0; left:0; right:0; z-index:1000;
  height: var(--header-h);
  background: #f3f3ef;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.header-inner {
  max-width: var(--max-width); margin:0 auto; padding:0 20px;
  height:100%; display:flex; align-items:center; justify-content:space-between;
}

.logo { display:flex; align-items:center; gap:10px; font-size:1.25rem; font-weight:700; color:var(--primary); }
.logo img { width:40px; height:40px; flex-shrink:0; }

.nav { display:flex; align-items:center; gap:2px; }
.nav a {
  display:block; padding:8px 14px; color:var(--gray-600);
  font-size:.9rem; font-weight:500; border-radius:6px;
  white-space:nowrap; transition: var(--transition);
}
.nav a:hover, .nav a.active { color:var(--primary); background:var(--white); }

.nav-toggle { display:none; background:none; border:none; cursor:pointer; padding:8px; }
.nav-toggle span { display:block; width:24px; height:2px; background:var(--gray-700); margin:5px 0; transition: var(--transition); }

@media (max-width: 900px) {
  .nav { display:none; position:fixed; top:var(--header-h); left:0; right:0; background:var(--white); flex-direction:column; padding:10px; box-shadow: var(--shadow); max-height:70vh; overflow-y:auto; }
  .nav.open { display:flex; }
  .nav a { padding:12px 16px; font-size:1rem; }
  .nav-toggle { display:block; }
}

/* ==================== 底部 ==================== */
.footer {
  background: var(--primary-dark);
  color: var(--gray-300);
  padding: 60px 0 30px;
}
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer h4 { color:var(--white); font-size:1.1rem; margin-bottom:16px; }
.footer p, .footer a { color:var(--gray-400); font-size:.9rem; line-height:2; }
.footer a:hover { color:var(--accent); }
.footer-bottom {
  margin-top:40px; padding-top:20px;
  border-top: 1px solid rgba(255,255,255,.1);
  text-align:center; font-size:.85rem; color:var(--gray-500);
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns:1fr 1fr; }
  .footer { padding:40px 0 20px; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns:1fr; }
}

/* ==================== 通用组件 ==================== */

/* 按钮 */
.btn {
  display:inline-block; padding:12px 28px; border:none; border-radius:var(--radius);
  font-size:1rem; font-weight:600; cursor:pointer; text-align:center;
  transition: var(--transition); text-decoration:none; line-height:1.4;
}
.btn-primary { background:var(--primary); color:var(--white); }
.btn-primary:hover { background:var(--primary-light); color:var(--white); transform:translateY(-1px); box-shadow:var(--shadow); }
.btn-accent { background:var(--accent); color:var(--white); }
.btn-accent:hover { background:var(--accent-dark); color:var(--white); transform:translateY(-1px); box-shadow:var(--shadow); }
.btn-outline { border:2px solid var(--primary); color:var(--primary); background:transparent; }
.btn-outline:hover { background:var(--primary); color:var(--white); }
.btn-lg { padding:16px 40px; font-size:1.1rem; }
.btn-sm { padding:8px 18px; font-size:.85rem; }

/* 标题 */
.section-title { text-align:center; margin-bottom:50px; }
.section-title h2 { font-size:2rem; color:var(--primary); margin-bottom:10px; }
.section-title p { color:var(--gray-500); font-size:1.05rem; max-width:600px; margin:0 auto; }
.section-title .divider {
  width:60px; height:3px; background:var(--accent);
  margin:15px auto 0; border-radius:2px;
}

/* 卡片 */
.card {
  background:var(--white); border-radius:var(--radius-lg);
  padding:30px; border:1px solid var(--gray-200);
  transition: var(--transition);
}
.card:hover { transform:translateY(-4px); box-shadow:var(--shadow-lg); }
.card-icon {
  width:60px; height:60px; background:var(--primary);
  border-radius: 12px; display:flex; align-items:center; justify-content:center;
  margin-bottom:20px; color:var(--white);
}
.card-icon svg { width:30px; height:30px; }
.card h3 { font-size:1.15rem; color:var(--primary); margin-bottom:10px; }
.card p { color:var(--gray-500); font-size:.95rem; }

/* 网格 */
.grid-2 { display:grid; grid-template-columns:repeat(2, 1fr); gap:24px; }
.grid-3 { display:grid; grid-template-columns:repeat(3, 1fr); gap:24px; }
.grid-4 { display:grid; grid-template-columns:repeat(4, 1fr); gap:24px; }

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns:1fr; }
}

/* ==================== Hero / Banner ==================== */
.hero {
  margin-top: var(--header-h);
  position:relative;
  min-height:520px;
  background:linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color:var(--white);
  display:flex; align-items:center;
  overflow:hidden;
}

.hero::before {
  content:''; position:absolute; top:0; left:0; right:0; bottom:0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,.05)" d="M0,160L48,176C96,192,192,224,288,213.3C384,203,480,149,576,128C672,107,768,117,864,138.7C960,160,1056,192,1152,192C1248,192,1344,160,1392,144L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"/></svg>') no-repeat bottom;
  background-size:cover;
}

.hero-inner { position:relative; z-index:1; max-width: var(--max-width); margin:0 auto; padding:60px 20px; display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:center; }
.hero-text h1 { font-size:2.8rem; line-height:1.3; margin-bottom:20px; font-weight:800; }
.hero-text h1 span { color:var(--accent); }
.hero-text p { font-size:1.15rem; color:rgba(255,255,255,.85); margin-bottom:30px; line-height:1.8; }
.hero-text .btn-group { display:flex; gap:14px; flex-wrap:wrap; }
.hero-visual { text-align:center; }
.hero-visual svg { width:100%; max-width:400px; opacity:.9; }

@media (max-width: 768px) {
  .hero-inner { grid-template-columns:1fr; text-align:center; }
  .hero-text h1 { font-size:2rem; }
  .hero-text .btn-group { justify-content:center; }
  .hero-visual { display:none; }
  .hero { min-height:auto; }
}

/* ==================== 页面Banner(子页面) ==================== */
.page-banner {
  margin-top: var(--header-h);
  background:linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color:var(--white); padding:60px 20px; text-align:center;
}
.page-banner h1 { font-size:2.2rem; margin-bottom:10px; }
.page-banner p { font-size:1.05rem; color:rgba(255,255,255,.8); }

/* 面包屑 */
.breadcrumb { padding:12px 20px; background:var(--gray-50); font-size:.9rem; color:var(--gray-500); }
.breadcrumb a { color:var(--gray-600); }
.breadcrumb a:hover { color:var(--primary); }
.breadcrumb span { color:var(--gray-400); margin:0 6px; }

/* ==================== 动画 ==================== */
.fade-up {
  opacity:0; transform:translateY(30px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-up.visible { opacity:1; transform:translateY(0); }

.fade-in { opacity:0; transition: opacity .6s ease; }
.fade-in.visible { opacity:1; }

.scale-in {
  opacity:0; transform:scale(.9);
  transition: opacity .6s ease, transform .6s ease;
}
.scale-in.visible { opacity:1; transform:scale(1); }

/* 统计数字跳动 */
.stat-number { font-size:3rem; font-weight:800; color:var(--accent); display:block; }
.stat-label { font-size:1rem; color:var(--gray-500); margin-top:6px; }

/* ==================== 特色区域 ==================== */
.features-section { padding:80px 0; }
.features-bg { background:var(--gray-50); }

/* 服务体系 */
.service-steps { display:grid; grid-template-columns:repeat(4, 1fr); gap:20px; counter-reset:step; }
.service-step {
  text-align:center; padding:30px 20px; position:relative;
}
.service-step::before {
  counter-increment:step; content:counter(step);
  width:40px; height:40px; background:var(--accent); color:var(--white);
  border-radius:50%; display:flex; align-items:center; justify-content:center;
  margin:0 auto 16px; font-weight:700; font-size:1.1rem;
}
.service-step h4 { font-size:1.05rem; color:var(--primary); margin-bottom:8px; }
.service-step p { font-size:.9rem; color:var(--gray-500); }

@media (max-width: 768px) { .service-steps { grid-template-columns:repeat(2, 1fr); } }
@media (max-width: 480px) { .service-steps { grid-template-columns:1fr; } }

/* 优势卡片 */
.advantage-card {
  background:var(--white); border-radius:var(--radius-lg);
  padding:30px; text-align:center; border-top:3px solid var(--accent);
  transition: var(--transition);
}
.advantage-card:hover { transform:translateY(-6px); box-shadow:var(--shadow-lg); }
.advantage-card svg { width:50px; height:50px; color:var(--accent); margin-bottom:16px; }
.advantage-card h3 { font-size:1.1rem; color:var(--primary); margin-bottom:10px; }
.advantage-card p { color:var(--gray-500); font-size:.9rem; }

/* ==================== 内容区域 ==================== */
.content-section { padding:60px 0; }
.content-section h2 { font-size:1.6rem; color:var(--primary); margin-bottom:20px; }
.content-section h3 { font-size:1.2rem; color:var(--primary); margin:24px 0 12px; }
.content-section p { color:var(--gray-600); margin-bottom:16px; line-height:1.8; text-align:justify; }
.content-section ul, .content-section ol { margin:12px 0 20px 24px; color:var(--gray-600); }
.content-section li { margin-bottom:8px; line-height:1.7; }
.content-section blockquote {
  border-left:4px solid var(--accent); padding:16px 20px;
  background:var(--gray-50); margin:20px 0; color:var(--gray-600);
  border-radius:0 var(--radius) var(--radius) 0;
}

/* ==================== 表格 ==================== */
.table-wrap { overflow-x:auto; margin:20px 0; }
table { width:100%; border-collapse:collapse; font-size:.95rem; }
table th { background:var(--primary); color:var(--white); padding:14px 16px; text-align:left; font-weight:600; }
table td { padding:12px 16px; border-bottom:1px solid var(--gray-200); }
table tr:nth-child(even) { background:var(--gray-50); }
table tr:hover { background:var(--gray-100); }

/* ==================== 联系页面 ==================== */
.contact-grid { display:grid; grid-template-columns:1fr 1fr; gap:40px; }
.contact-info h3 { font-size:1.2rem; color:var(--primary); margin-bottom:16px; }
.contact-item { display:flex; gap:12px; align-items:flex-start; margin-bottom:20px; }
.contact-item svg { width:22px; height:22px; color:var(--accent); flex-shrink:0; margin-top:2px; }
.contact-item .label { font-weight:600; color:var(--gray-800); }
.contact-item .value { color:var(--gray-500); }

.form-group { margin-bottom:18px; }
.form-group label { display:block; margin-bottom:6px; font-weight:500; color:var(--gray-700); font-size:.95rem; }
.form-group input, .form-group textarea, .form-group select {
  width:100%; padding:12px 16px; border:1px solid var(--gray-300);
  border-radius:var(--radius); font-size:1rem; font-family:inherit;
  transition: var(--transition); outline:none; background:var(--white);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  border-color:var(--primary); box-shadow:0 0 0 3px rgba(26,58,92,.1);
}
.form-group textarea { min-height:120px; resize:vertical; }

@media (max-width: 768px) { .contact-grid { grid-template-columns:1fr; } }

/* ==================== 政策法规列表 ==================== */
.policy-list { list-style:none; margin:0; }
.policy-item {
  padding:20px 0; border-bottom:1px solid var(--gray-200);
  display:flex; justify-content:space-between; align-items:center; gap:16px;
}
.policy-item:last-child { border-bottom:none; }
.policy-item h4 { font-size:1.05rem; margin-bottom:4px; }
.policy-item h4 a { color:var(--gray-800); }
.policy-item h4 a:hover { color:var(--primary); }
.policy-item .meta { font-size:.85rem; color:var(--gray-400); }
.policy-detail h2 { font-size:1.6rem; color:var(--primary); margin-bottom:10px; }
.policy-detail .meta { color:var(--gray-400); font-size:.9rem; margin-bottom:30px; }

/* ==================== 会员权益 ==================== */
.pricing-cards { display:grid; grid-template-columns:repeat(3, 1fr); gap:24px; }
.pricing-card {
  background:var(--white); border-radius:var(--radius-lg);
  padding:40px 30px; text-align:center; border:2px solid var(--gray-200);
  transition: var(--transition); position:relative;
}
.pricing-card.featured { border-color:var(--accent); transform:scale(1.03); box-shadow:var(--shadow-lg); }
.pricing-card:hover { transform:translateY(-6px); box-shadow:var(--shadow-lg); }
.pricing-card.featured:hover { transform:scale(1.03) translateY(-6px); }
.pricing-card .badge {
  position:absolute; top:-14px; left:50%; transform:translateX(-50%);
  background:var(--accent); color:var(--white); padding:4px 18px;
  border-radius:20px; font-size:.8rem; font-weight:600;
}
.pricing-card h3 { font-size:1.3rem; color:var(--primary); margin-bottom:8px; }
.pricing-card .price { font-size:2.5rem; font-weight:800; color:var(--accent); margin:16px 0; }
.pricing-card .price small { font-size:1rem; color:var(--gray-400); }
.pricing-card ul { list-style:none; text-align:left; margin:20px 0; }
.pricing-card ul li { padding:8px 0; color:var(--gray-600); font-size:.95rem; }
.pricing-card ul li::before { content:'✓ '; color:var(--green); font-weight:700; }

@media (max-width: 768px) {
  .pricing-cards { grid-template-columns:1fr; max-width:400px; margin:0 auto; }
  .pricing-card.featured { transform:none; }
}

/* ==================== 问卷样式 ==================== */
.survey-section { max-width:800px; margin:0 auto; padding:40px 20px; }
.survey-progress {
  height:4px; background:var(--gray-200); border-radius:2px; margin-bottom:30px;
}
.survey-progress-bar {
  height:100%; background:var(--accent); border-radius:2px;
  transition: width .4s ease; width:0;
}
.survey-step { display:none; }
.survey-step.active { display:block; animation: fadeIn .5s ease; }
.survey-step h3 { font-size:1.2rem; color:var(--primary); margin-bottom:20px; }
.survey-options { display:grid; gap:10px; }
.survey-option {
  display:flex; align-items:center; gap:10px; padding:14px 16px;
  border:2px solid var(--gray-200); border-radius:var(--radius);
  cursor:pointer; transition: var(--transition);
}
.survey-option:hover { border-color:var(--accent); background:var(--gray-50); }
.survey-option.selected { border-color:var(--accent); background:rgba(201,169,110,.05); }
.survey-option input[type="radio"], .survey-option input[type="checkbox"] { margin:0; width:18px; height:18px; accent-color:var(--accent); }
.survey-option label { flex:1; cursor:pointer; font-size:.95rem; }
.survey-nav { display:flex; justify-content:space-between; margin-top:30px; }

@keyframes fadeIn { from{opacity:0;transform:translateY(10px)} to{opacity:1;transform:translateY(0)} }

/* ==================== 专家入库 ==================== */
.expert-benefits { display:grid; grid-template-columns:repeat(2, 1fr); gap:16px; margin:20px 0; }
.expert-benefit { background:var(--gray-50); padding:16px; border-radius:var(--radius); font-size:.95rem; }
.expert-benefit strong { color:var(--primary); }

/* ==================== 搜索 ==================== */
.search-box { display:flex; gap:8px; max-width:500px; margin:20px 0; }
.search-box input { flex:1; padding:12px 16px; border:1px solid var(--gray-300); border-radius:var(--radius); font-size:1rem; }
.search-box button { padding:12px 24px; }

/* ==================== 微信二维码 ==================== */
.qrcode-placeholder {
  width:160px; height:160px; background:var(--gray-100);
  border:2px dashed var(--gray-300); border-radius:var(--radius);
  display:flex; align-items:center; justify-content:center;
  color:var(--gray-400); font-size:.85rem; text-align:center;
  margin:0 auto;
}

/* ==================== 后台样式 ==================== */
.admin-layout { display:flex; min-height:100vh; }
.admin-sidebar {
  width:240px; background:var(--primary-dark); color:var(--white);
  padding:0; flex-shrink:0;
}
.admin-sidebar .brand { padding:20px; font-size:1.1rem; font-weight:700; border-bottom:1px solid rgba(255,255,255,.1); }
.admin-sidebar nav a {
  display:flex; align-items:center; gap:10px; padding:14px 20px;
  color:var(--gray-400); font-size:.9rem; transition: var(--transition);
}
.admin-sidebar nav a:hover, .admin-sidebar nav a.active { color:var(--white); background:rgba(255,255,255,.05); }
.admin-sidebar nav a svg { width:18px; height:18px; flex-shrink:0; }
.admin-main { flex:1; background:var(--gray-50); min-width:0; }
.admin-topbar {
  background:var(--white); padding:0 24px; height:60px;
  display:flex; align-items:center; justify-content:flex-end;
  border-bottom:1px solid var(--gray-200); gap:16px;
}
.admin-content { padding:24px; }
.admin-page { display:none; }
.admin-page.active { display:block; }

@media (max-width: 768px) {
  .admin-layout { flex-direction:column; }
  .admin-sidebar { width:100%; }
  .admin-sidebar nav { display:flex; flex-wrap:wrap; padding:0 10px 10px; }
}

/* 数据卡片 */
.stat-cards { display:grid; grid-template-columns:repeat(5, 1fr); gap:16px; margin-bottom:24px; }
.stat-card {
  background:var(--white); padding:20px 16px; border-radius:var(--radius);
  border:1px solid var(--gray-200); text-align:center;
}
.stat-card .num { font-size:1.8rem; font-weight:700; color:var(--primary); }
.stat-card .label { color:var(--gray-500); font-size:.85rem; margin-top:2px; }
.stat-card .split { display:flex; justify-content:space-around; }
.stat-card .split .half { flex:1; }
.stat-card .split .half:first-child { border-right:1px solid var(--gray-100); }
.stat-click { cursor:pointer; transition:border-color .2s; }
.stat-click:hover { border-color:var(--primary) !important; }

@media (max-width: 768px) { .stat-cards { grid-template-columns:repeat(2, 1fr); } }

/* ==================== 工具类 ==================== */
.text-center { text-align:center; }
.text-accent { color:var(--accent); }
.mt-20 { margin-top:20px; }
.mt-40 { margin-top:40px; }
.mb-20 { margin-bottom:20px; }
.mb-40 { margin-bottom:40px; }
.py-40 { padding-top:40px; padding-bottom:40px; }
.py-60 { padding-top:60px; padding-bottom:60px; }
.py-80 { padding-top:80px; padding-bottom:80px; }
.bg-gray { background:var(--gray-50); }
.bg-primary { background:var(--primary); color:var(--white); }
.bg-primary-light { background:var(--primary-light); color:var(--white); }

/* 滚动条美化 */
::-webkit-scrollbar { width:8px; }
::-webkit-scrollbar-track { background:var(--gray-100); }
::-webkit-scrollbar-thumb { background:var(--gray-300); border-radius:4px; }

/* 回到顶部 */
.back-to-top {
  position:fixed; bottom:30px; right:30px; z-index:999;
  width:44px; height:44px; background:var(--primary); color:var(--white);
  border-radius:50%; display:flex; align-items:center; justify-content:center;
  cursor:pointer; border:none; box-shadow:var(--shadow);
  opacity:0; visibility:hidden; transition: var(--transition);
}
.back-to-top.show { opacity:1; visibility:visible; }
.back-to-top:hover { background:var(--accent); }