/* ============ 农村自建房咨询平台 - 全局样式 ============ */
:root {
  --primary: #8B4513;
  --primary-dark: #6b3410;
  --primary-light: #f5ede2;
  --accent: #c77b2e;
  --green: #4a7c59;
  --bg: #faf8f4;
  --card: #ffffff;
  --text: #333333;
  --text-light: #666666;
  --border: #e5ddd2;
  --shadow: 0 2px 12px rgba(107, 52, 16, 0.08);
  --radius: 12px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* ============ 顶部导航 ============ */
.header {
  background: var(--card);
  border-bottom: 3px solid var(--primary);
  position: sticky; top: 0; z-index: 100;
  box-shadow: var(--shadow);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: bold; color: var(--primary); }
.logo-icon { width: 36px; height: 36px; background: var(--primary); color: #fff; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 18px; }
.logo-sub { font-size: 11px; color: var(--text-light); font-weight: normal; display: block; line-height: 1.2; }
.nav-links { display: flex; gap: 4px; list-style: none; }
.nav-links a { display: block; padding: 8px 12px; color: var(--text); border-radius: 8px; font-size: 15px; }
.nav-links a:hover { background: var(--primary-light); text-decoration: none; color: var(--primary); }
.nav-links a.active { background: var(--primary); color: #fff; }
.nav-cta { background: var(--accent); color: #fff !important; padding: 10px 18px; border-radius: 8px; font-weight: bold; }
.nav-cta:hover { background: var(--primary); }
.menu-toggle { display: none; background: none; border: none; font-size: 24px; color: var(--primary); cursor: pointer; }

/* 下拉菜单 */
.nav-item { position: relative; }
.nav-item .caret { font-size: 11px; margin-left: 2px; opacity: 0.7; }
.dropdown {
  display: none; position: absolute; top: 100%; left: 0; min-width: 160px;
  background: #fff; border: 1px solid var(--border); border-radius: 10px;
  box-shadow: 0 8px 24px rgba(107,52,16,0.15); padding: 6px; z-index: 200; list-style: none;
}
.nav-item.has-dropdown:hover .dropdown,
.nav-item.has-dropdown.open .dropdown { display: block; }
.dropdown a { padding: 9px 14px; font-size: 14px; white-space: nowrap; border-radius: 7px; }
.dropdown a:hover { background: var(--primary-light); color: var(--primary); }
.dropdown a.sub-active { background: var(--primary); color: #fff; }

/* ============ 页脚 ============ */
.footer { background: #2c2a27; color: #bbb; margin-top: 60px; padding: 40px 0 30px; font-size: 14px; }
.footer a { color: #ddd; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 30px; }
.footer h4 { color: #fff; margin-bottom: 12px; font-size: 15px; }
.footer ul { list-style: none; }
.footer li { margin-bottom: 8px; }
.footer-bottom { border-top: 1px solid #444; margin-top: 30px; padding-top: 20px; text-align: center; color: #888; font-size: 13px; }

/* ============ 通用区块 ============ */
.hero {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary) 55%, var(--accent));
  color: #fff; padding: 70px 0; text-align: center;
}
.hero h1 { font-size: 38px; margin-bottom: 14px; letter-spacing: 1px; }
.hero p { font-size: 18px; opacity: 0.92; max-width: 720px; margin: 0 auto 30px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 13px 30px; border-radius: 10px; font-size: 16px; font-weight: bold;
  border: none; cursor: pointer; transition: all 0.2s;
}
.btn-primary { background: #fff; color: var(--primary); }
.btn-primary:hover { background: var(--primary-light); text-decoration: none; transform: translateY(-1px); }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.7); }
.btn-outline:hover { background: rgba(255,255,255,0.15); text-decoration: none; }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--primary); text-decoration: none; }
.btn-green { background: var(--green); color: #fff; }
.btn-green:hover { background: #3a6647; text-decoration: none; }
.btn-lg { padding: 16px 40px; font-size: 18px; }

.section { padding: 55px 0; }
.section-alt { background: var(--card); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { text-align: center; margin-bottom: 36px; }
.section-head h2 { font-size: 28px; color: var(--primary); margin-bottom: 8px; }
.section-head p { color: var(--text-light); font-size: 16px; }

/* 卡片网格 */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 22px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; transition: all 0.25s; cursor: pointer;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(107,52,16,0.12); border-color: var(--accent); }
.card-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 14px; }
.card h3 { font-size: 18px; margin-bottom: 8px; color: var(--text); }
.card p { color: var(--text-light); font-size: 14px; }
.card-tag { display: inline-block; background: var(--primary-light); color: var(--primary); font-size: 12px; padding: 3px 10px; border-radius: 20px; margin-top: 12px; }

/* ============ 页面标题 ============ */
.page-header { background: var(--primary-light); padding: 40px 0; border-bottom: 1px solid var(--border); }
.page-header h1 { font-size: 30px; color: var(--primary); }
.page-header p { color: var(--text-light); margin-top: 6px; max-width: 700px; }

/* 面包屑 */
.breadcrumb { font-size: 13px; color: var(--text-light); margin-bottom: 14px; }
.breadcrumb a { color: var(--primary); }

/* ============ 筛选栏 ============ */
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 28px; }
.chip {
  padding: 8px 18px; border-radius: 24px; border: 1px solid var(--border); background: var(--card);
  cursor: pointer; font-size: 14px; transition: all 0.2s; color: var(--text);
}
.chip:hover { border-color: var(--accent); color: var(--primary); }
.chip.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ============ 内容文章 ============ */
.article { background: var(--card); border-radius: var(--radius); border: 1px solid var(--border); padding: 36px; }
.article h2 { font-size: 22px; color: var(--primary); margin: 28px 0 12px; border-left: 4px solid var(--accent); padding-left: 12px; }
.article h3 { font-size: 18px; margin: 20px 0 8px; }
.article p, .article li { font-size: 15px; margin-bottom: 10px; }
.article ul, .article ol { padding-left: 22px; margin-bottom: 14px; }
.article blockquote { border-left: 4px solid var(--accent); background: var(--primary-light); padding: 12px 18px; margin: 14px 0; border-radius: 0 8px 8px 0; color: var(--text-light); }
.article table { width: 100%; border-collapse: collapse; margin: 14px 0; }
.article th, .article td { border: 1px solid var(--border); padding: 10px 12px; text-align: left; font-size: 14px; }
.article th { background: var(--primary-light); color: var(--primary); }
.article .notice { background: #fdf6e3; border: 1px solid #e8d5a0; color: #8a6d1d; padding: 12px 16px; border-radius: 8px; font-size: 14px; margin: 16px 0; }

/* ============ 政策条目 ============ */
.policy-item { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin-bottom: 20px; }
.policy-item h3 { font-size: 18px; color: var(--primary); margin-bottom: 10px; }
.policy-meta { font-size: 13px; color: var(--text-light); margin-bottom: 12px; }
.policy-meta span { margin-right: 16px; }
.policy-block { margin-bottom: 10px; }
.policy-block strong { color: var(--primary-dark); }
.policy-block ul, .policy-block ol { padding-left: 22px; margin-top: 4px; }

/* ============ 工具计算器 ============ */
.tool-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.tool-form { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; }
.tool-result { background: var(--primary-light); border: 1px solid var(--accent); border-radius: var(--radius); padding: 30px; align-self: start; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-weight: bold; margin-bottom: 6px; font-size: 14px; color: var(--text); }
.form-group .hint { font-size: 12px; color: var(--text-light); font-weight: normal; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 15px; background: #fff; color: var(--text); font-family: inherit;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(199,123,46,0.15);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.result-num { font-size: 42px; font-weight: bold; color: var(--primary); margin: 10px 0; }
.result-sub { color: var(--text-light); font-size: 14px; margin-bottom: 16px; }
.result-table { width: 100%; border-collapse: collapse; margin-top: 12px; }
.result-table th, .result-table td { border: 1px solid var(--border); padding: 9px 12px; text-align: left; font-size: 14px; background: #fff; }
.result-table th { background: var(--primary-light); color: var(--primary); }

/* ============ 咨询下单页 ============ */
.consult-layout { display: grid; grid-template-columns: 1.5fr 1fr; gap: 30px; }
.service-item {
  border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; margin-bottom: 14px;
  display: flex; gap: 14px; align-items: flex-start; background: var(--card); cursor: pointer; transition: all 0.2s;
}
.service-item:hover { border-color: var(--accent); }
.service-item.selected { border-color: var(--accent); background: #fffaf3; box-shadow: 0 0 0 3px rgba(199,123,46,0.1); }
.service-item input[type="checkbox"] { width: 20px; height: 20px; margin-top: 3px; accent-color: var(--accent); }
.service-info { flex: 1; }
.service-info h4 { font-size: 16px; margin-bottom: 4px; }
.service-info p { font-size: 13px; color: var(--text-light); }
.service-price { text-align: right; font-size: 17px; font-weight: bold; color: var(--accent); white-space: nowrap; }
.service-price small { display: block; font-size: 12px; color: var(--text-light); font-weight: normal; }
.qty-input { width: 70px !important; text-align: center; padding: 6px !important; }

.order-sidebar {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; position: sticky; top: 84px; align-self: start;
}
.order-sidebar h3 { font-size: 18px; margin-bottom: 14px; color: var(--primary); }
.order-items { max-height: 260px; overflow-y: auto; margin-bottom: 14px; }
.order-item { display: flex; justify-content: space-between; font-size: 14px; padding: 7px 0; border-bottom: 1px dashed var(--border); }
.order-item span:last-child { font-weight: bold; color: var(--accent); }
.order-total { display: flex; justify-content: space-between; font-size: 20px; font-weight: bold; color: var(--primary); padding: 14px 0; border-top: 2px solid var(--primary); margin-top: 8px; }
.pay-now { width: 100%; padding: 15px; font-size: 17px; }
.pay-note { text-align: center; font-size: 12px; color: var(--text-light); margin-top: 10px; }

/* 支付弹窗 */
.modal-mask {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 200;
  align-items: center; justify-content: center;
}
.modal-mask.show { display: flex; }
.modal {
  background: #fff; border-radius: 16px; padding: 34px; max-width: 420px; width: 90%;
  text-align: center; box-shadow: 0 20px 60px rgba(0,0,0,0.25);
}
.modal h3 { font-size: 20px; margin-bottom: 10px; }
.modal .amount { font-size: 40px; font-weight: bold; color: var(--primary); margin: 14px 0; }
.modal .qr-box { width: 200px; height: 200px; background: #f5f5f5; border-radius: 12px; margin: 16px auto; display: flex; align-items: center; justify-content: center; border: 1px dashed #ccc; }
.modal .qr-note { font-size: 13px; color: var(--text-light); margin-bottom: 18px; }
.modal .sim-pay { background: var(--green); color: #fff; border: none; padding: 13px 34px; border-radius: 10px; font-size: 16px; cursor: pointer; font-weight: bold; }
.modal .sim-pay:hover { background: #3a6647; }
.modal-close { margin-top: 14px; background: none; border: none; color: var(--text-light); cursor: pointer; font-size: 14px; }

/* 报告下载 */
.download-box { background: var(--primary-light); border: 1px solid var(--accent); border-radius: var(--radius); padding: 24px; text-align: center; margin-top: 18px; }
.download-box h4 { color: var(--primary); margin-bottom: 6px; }

/* ============ 户型图库 ============ */
.house-card .house-img { width: 100%; height: 200px; object-fit: cover; border-radius: 8px; margin-bottom: 12px; background: #eee; }
.house-badges { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 10px; }
.house-badges span { font-size: 12px; background: var(--primary-light); color: var(--primary); padding: 3px 10px; border-radius: 16px; }

/* ============ 响应式 ============ */
@media (max-width: 900px) {
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 10px 20px 20px; border-bottom: 3px solid var(--primary); box-shadow: var(--shadow); }
  .nav-links.show { display: flex; }
  .menu-toggle { display: block; }
  .nav-item.has-dropdown { width: 100%; }
  .dropdown { display: none; position: static; box-shadow: none; border: none; padding-left: 14px; min-width: 0; }
  .nav-item.has-dropdown.open .dropdown { display: block; }
  .dropdown a { display: block; padding: 8px 12px; }
  .hero h1 { font-size: 28px; }
  .tool-wrap, .consult-layout { grid-template-columns: 1fr; }
  .order-sidebar { position: static; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  /* —— 表格移动端横向滚动（手机/平板） —— */
  .result-table, .risk-table, .data, .article table, .policy-item table { display: block; overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; }
  .result-table tr, .risk-table tr, .data tr, .article table tr { display: table; width: 100%; table-layout: auto; }
  .result-table td, .result-table th, .risk-table td, .risk-table th, .data td, .data th { display: table-cell; }
  /* —— 覆盖内联 grid 为单列（手机/平板） —— */
  .card-grid[style*="grid-template-columns:1fr 1fr"], .card-grid[style*="grid-template-columns:repeat(2"], .card-grid[style*="grid-template-columns:repeat(3"], div[style*="display:grid;grid-template-columns:1fr 1fr"] { grid-template-columns: 1fr !important; }
  /* —— 营销页首屏适配 —— */
  .hero-pain, .hero-fs, .hero-bd, .hero-dc { padding: 34px 0 28px; }
  .hero-pain h1, .hero-fs h1, .hero-bd h1, .hero-dc h1 { font-size: 24px; }
  .free-tools { grid-template-columns: 1fr; }
  .topic, .case-item, .story-item { padding: 13px 14px; }
}

/* 平板（901px~1200px）微调 */
@media (min-width: 901px) and (max-width: 1200px) {
  .hero-pain h1, .hero-fs h1, .hero-bd h1, .hero-dc h1 { font-size: 28px; }
}