/* 房产SEO系统 - 前端样式 */
/* 移动优先,简洁专业 */

*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;color:#333;background:#f5f6fa}
a{color:#2563eb;text-decoration:none;transition:color .2s}
a:hover{color:#1d4ed8}
.container{max-width:1200px;margin:0 auto;padding:0 16px}
.main-content{min-height:60vh;padding:20px 0}

/* Header */
.site-header{background:#fff;border-bottom:2px solid #2563eb;box-shadow:0 1px 3px rgba(0,0,0,.08)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:56px}
.logo{font-size:20px;font-weight:700;color:#2563eb;white-space:nowrap}
.main-nav{display:flex;gap:18px;flex-wrap:wrap}
.main-nav a{color:#555;font-size:14px}
.main-nav a:hover{color:#2563eb}

/* Breadcrumbs */
.breadcrumbs{font-size:13px;color:#888;margin-bottom:16px;padding:8px 0}
.breadcrumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:4px}
.breadcrumbs li::after{content:"›";margin-left:4px;color:#aaa}
.breadcrumbs li:last-child::after{content:""}
.breadcrumbs li.current{color:#555}
.breadcrumbs a{color:#888}

/* Sections */
.section{background:#fff;border-radius:8px;padding:20px;margin-bottom:16px}
.section-hot{padding:16px 20px}
.section-title{font-size:18px;font-weight:600;margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid #e8e8e8;color:#1a1a1a}
.section-title-small{font-size:16px;font-weight:600;margin-bottom:10px;color:#555}
.section-stats{text-align:center;padding:12px}

/* City Grid */
.city-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px}
.city-card{display:flex;flex-direction:column;align-items:center;padding:10px;background:#f8f9ff;border-radius:6px;text-align:center;transition:background .2s}
.city-card:hover{background:#e8efff}
.city-name{font-size:14px;font-weight:500;color:#333}
.city-price{font-size:11px;color:#888;margin-top:4px}

/* Question List */
.question-list{display:flex;flex-direction:column;gap:12px}
.question-item{padding:12px 0;border-bottom:1px solid #f0f0f0}
.question-item:last-child{border-bottom:none}
.question-title{font-size:15px;font-weight:500;margin-bottom:6px}
.question-title a{color:#1a1a1a}
.question-title a:hover{color:#2563eb}
.question-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:12px;color:#999}
.tag{display:inline-block;padding:2px 8px;border-radius:3px;font-size:12px;background:#f0f4ff;color:#5566ee}
.tag.city-tag{background:#e6f7ff;color:#1890ff}
.tag.type-tag{background:#fff7e6;color:#fa8c16}
.tag-district{background:#f6ffed;color:#52c41a}
.tag-intent{background:#fff0f6;color:#eb2f96}
.tag-scene{background:#f9f0ff;color:#722ed1}
.meta{font-size:12px;color:#999}
.meta-zero{color:#ccc}

/* Hot List */
.hot-list{list-style:none;display:flex;flex-direction:column;gap:8px}
.hot-item{display:flex;align-items:center;gap:10px;padding:6px 0}
.hot-rank{width:20px;height:20px;line-height:20px;text-align:center;border-radius:3px;font-size:12px;font-weight:700;background:#ddd;color:#fff;flex-shrink:0}
.hot-rank.rank-1{background:#ff4d4f}
.hot-rank.rank-2{background:#ff7a45}
.hot-rank.rank-3{background:#ffa940}
.hot-title{flex:1;font-size:14px;color:#1a1a1a}
.hot-title:hover{color:#2563eb}

/* Type/Topic Grid */
.type-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:8px}
.type-card{padding:10px;text-align:center;background:#f8f9ff;border-radius:6px;font-size:14px}
.type-card:hover{background:#e8efff}
.topic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.topic-card{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;background:#f8f9ff;border-radius:6px}
.topic-name{font-size:14px;font-weight:500}
.topic-count{font-size:12px;color:#999}

/* Stats Bar */
.stats-bar{display:flex;justify-content:center;gap:30px;flex-wrap:wrap}
.stat-item{font-size:14px;color:#666}
.stat-item strong{font-size:18px;color:#2563eb;font-weight:700}

/* Question Detail */
.question-detail{background:#fff;border-radius:8px;padding:24px;margin-bottom:16px}
.question-h1{font-size:22px;font-weight:700;line-height:1.4;margin-bottom:12px;color:#1a1a1a}
.question-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.question-content{font-size:15px;line-height:1.8;color:#444;margin-bottom:16px}
.question-content p{margin-bottom:12px}
.question-stats-bar{display:flex;flex-wrap:wrap;gap:16px;font-size:13px;color:#999;padding-top:12px;border-top:1px solid #f0f0f0}
.stat-price{color:#fa541c;font-weight:500}

/* Answers */
.answers-section{background:#fff;border-radius:8px;padding:20px;margin-bottom:16px}
.answer-item{padding:16px 0;border-bottom:1px solid #f0f0f0}
.answer-item:last-child{border-bottom:none}
.answer-best{background:#fffbe6;border-radius:6px;padding:16px;margin:0 -8px}
.answer-header{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.answer-avatar{width:36px;height:36px;line-height:36px;text-align:center;border-radius:50%;background:#2563eb;color:#fff;font-weight:600;font-size:14px}
.answer-author{display:flex;flex-direction:column;gap:2px}
.author-name{font-size:14px;font-weight:500;color:#333}
.author-title{font-size:12px;color:#888}
.author-role{font-size:11px;color:#1890ff;background:#e6f7ff;padding:1px 6px;border-radius:3px}
.best-badge{margin-left:auto;font-size:12px;color:#fa541c;background:#fff7e6;padding:2px 8px;border-radius:3px;font-weight:500}
.answer-content{font-size:14px;line-height:1.8;color:#444}
.answer-content p{margin-bottom:10px}
.answer-footer{display:flex;gap:16px;font-size:12px;color:#999;margin-top:8px}

/* Comments */
.comments-section{background:#fff;border-radius:8px;padding:16px 20px;margin-bottom:16px}
.comment-item{display:flex;gap:8px;align-items:baseline;padding:6px 0;font-size:13px;border-bottom:1px solid #f8f8f8}
.comment-item:last-child{border-bottom:none}
.comment-author{font-weight:500;color:#555;white-space:nowrap}
.comment-content{color:#666;flex:1}
.comment-time{color:#bbb;font-size:11px}

/* Related */
.related-section{background:#fff;border-radius:8px;padding:20px;margin-bottom:16px}
.related-list{list-style:none;display:flex;flex-direction:column;gap:10px}
.related-item{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.related-item a{flex:1;font-size:14px;color:#1a1a1a}
.related-item a:hover{color:#2563eb}

/* Same City */
.same-city-section{background:#fff;border-radius:8px;padding:20px;margin-bottom:16px}
.same-city-list{list-style:none;columns:2;gap:20px}
.same-city-list li{padding:4px 0;break-inside:avoid}
.same-city-list a{font-size:13px;color:#555}
.same-city-list .meta{float:right}

/* Category Page */
.category-header{background:#fff;border-radius:8px;padding:20px;margin-bottom:16px}
.category-header h1{font-size:22px;font-weight:700;margin-bottom:8px}
.category-desc{font-size:14px;color:#666;line-height:1.6}
.city-price-bar{margin-top:12px;display:inline-flex;align-items:center;gap:8px;background:#fff7e6;padding:6px 16px;border-radius:20px}
.price-label{font-size:13px;color:#888}
.price-value{font-size:18px;font-weight:700;color:#fa541c}

/* Filters */
.filter-bar{background:#fff;border-radius:8px;padding:12px 20px;margin-bottom:12px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.filter-label{font-size:13px;color:#888;margin-right:6px}
.filter-item{display:inline-block;padding:3px 10px;border-radius:3px;font-size:13px;color:#555;cursor:pointer}
.filter-item:hover{background:#f0f4ff;color:#2563eb}
.filter-item.active{background:#2563eb;color:#fff}

/* Pagination */
.pagination{text-align:center;margin:20px 0}
.pagination ul{list-style:none;display:inline-flex;gap:4px}
.pagination li{min-width:36px;height:36px;line-height:36px}
.pagination li a,.pagination li.current{display:block;padding:0 12px;border-radius:4px;font-size:14px}
.pagination li a{border:1px solid #e8e8e8;color:#555}
.pagination li a:hover{border-color:#2563eb;color:#2563eb}
.pagination li.current{background:#2563eb;color:#fff;border:1px solid #2563eb}
.pagination .ellipsis{border:none;color:#ccc}

/* Ask Page */
.ask-page{background:#fff;border-radius:8px;padding:30px;max-width:700px;margin:0 auto}
.ask-intro{color:#888;margin-bottom:20px}
.ask-form .form-group{margin-bottom:16px}
.ask-form .form-row{display:flex;gap:16px}
.ask-form .form-row .form-group{flex:1}
.form-input,.form-textarea,.form-select{width:100%;padding:10px 12px;border:1px solid #ddd;border-radius:4px;font-size:14px;font-family:inherit}
.form-input:focus,.form-textarea:focus,.form-select:focus{border-color:#2563eb;outline:none}
.btn-submit{padding:10px 30px;background:#2563eb;color:#fff;border:none;border-radius:4px;font-size:15px;cursor:pointer}
.btn-submit:hover{background:#1d4ed8}

/* Error */
.error-page{text-align:center;padding:60px 20px}
.error-page h1{font-size:48px;color:#ddd;margin-bottom:16px}

/* Footer */
.site-footer{background:#2d2d2d;color:#999;padding:24px 0;margin-top:20px}
.footer-links{text-align:center;margin-bottom:12px}
.footer-links a{color:#bbb;font-size:13px;margin:0 4px}
.footer-links a:hover{color:#fff}
.footer-info{text-align:center;font-size:12px;color:#777}
.footer-info p{margin:2px 0}

/* No Result */
.no-result{text-align:center;padding:40px;color:#999;font-size:14px}
.no-answer{text-align:center;padding:30px;color:#999;font-size:14px;background:#fafafa;border-radius:6px}

/* Responsive */
@media(max-width:768px){
  .site-header .container{height:auto;flex-direction:column;padding:10px 16px}
  .main-nav{justify-content:center;margin-top:8px}
  .question-h1{font-size:18px}
  .same-city-list{columns:1}
  .city-grid{grid-template-columns:repeat(auto-fill,minmax(90px,1fr))}
  .pagination li a,.pagination li.current{padding:0 8px}
  .ask-form .form-row{flex-direction:column}
  .answer-avatar{width:30px;height:30px;line-height:30px;font-size:12px}
  .stats-bar{gap:15px}
  .stat-item strong{font-size:16px}
}