/* 探花修车改装 - 原创样式 */
/* 配色：深灰底+亮橙强调+金属银辅助 */
:root {
  --primary: #f57c00;
  --primary-dark: #e65100;
  --primary-light: #fff3e0;
  --accent: #ff9800;
  --metal: #90a4ae;
  --metal-dark: #546e7a;
  --dark: #1a1a2e;
  --dark-mid: #212136;
  --text-dark: #1a1a1a;
  --text-mid: #5a5a6e;
  --text-light: #8a8a9e;
  --bg-body: #f5f5f7;
  --bg-card: #ffffff;
  --border: #e0e0e8;
  --shadow: 0 4px 24px rgba(0,0,0,0.06);
  --shadow-hover: 0 8px 32px rgba(245,124,0,0.12);
  --radius: 14px;
  --radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif; background: var(--bg-body); color: var(--text-dark); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
em { font-style: normal; color: var(--primary); }

.container { max-width: 1240px; margin: 0 auto; padding: 0 20px; }

/* 顶部公告栏 */
.top-bar { background: linear-gradient(90deg, var(--dark) 0%, var(--dark-mid) 100%); color: rgba(255,255,255,0.85); font-size: 13px; padding: 8px 0; text-align: center; }
.top-bar a { color: var(--accent); font-weight: 600; }

/* 头部导航 */
.site-header { background: #fff; border-bottom: 2px solid var(--primary); position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 12px rgba(0,0,0,0.05); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; gap: 16px; }
.site-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.site-logo img { border-radius: 10px; }
.logo-text { font-size: 26px; font-weight: 900; color: var(--primary); letter-spacing: -1px; }
.logo-sub { font-size: 11px; color: var(--text-light); font-weight: 500; }

.main-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.main-nav a { padding: 8px 16px; border-radius: 24px; font-size: 14px; font-weight: 600; color: var(--text-dark); transition: var(--transition); }
.main-nav a:hover, .main-nav a.active { background: var(--primary); color: #fff; }
.main-nav a.ici3nc6 { position: relative; }
.main-nav a.ici3nc6::after { content: "HOT"; position: absolute; top: -4px; right: -4px; background: #f44336; color: #fff; font-size: 9px; padding: 1px 4px; border-radius: 6px; font-weight: 700; }

.header-search { display: flex; align-items: center; }
.header-search input { border: 2px solid var(--border); border-radius: 24px; padding: 8px 16px; font-size: 13px; width: 180px; outline: none; transition: var(--transition); }
.header-search input:focus { border-color: var(--primary); width: 220px; }
.header-search .search-btn { background: var(--primary); border: none; color: #fff; width: 34px; height: 34px; border-radius: 50%; margin-left: -38px; cursor: pointer; font-size: 14px; }

.menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.menu-toggle span { display: block; width: 24px; height: 2.5px; background: var(--text-dark); margin: 5px 0; border-radius: 2px; transition: var(--transition); }

/* 搜索栏区块 */
.search-bar-section { background: linear-gradient(135deg, var(--dark) 0%, #2d2d44 100%); padding: 20px 0; }
.search-bar-inner { display: flex; align-items: center; max-width: 680px; margin: 0 auto; }
.search-input-wrap { display: flex; align-items: center; background: #fff; border-radius: 32px; padding: 6px 8px 6px 18px; flex: 1; gap: 10px; box-shadow: 0 4px 20px rgba(0,0,0,0.15); }
.search-input-wrap input { border: none; outline: none; flex: 1; font-size: 15px; padding: 10px 0; background: transparent; }
.search-input-wrap .search-btn { background: var(--primary); border: none; color: #fff; padding: 10px 24px; border-radius: 24px; font-size: 14px; font-weight: 700; cursor: pointer; transition: var(--transition); }
.search-input-wrap .search-btn:hover { background: var(--primary-dark); }
.search-hot-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; justify-content: center; }
.search-hot-tags span { color: rgba(255,255,255,0.6); font-size: 12px; }
.search-hot-tags a { color: rgba(255,255,255,0.85); font-size: 12px; background: rgba(255,255,255,0.1); padding: 4px 12px; border-radius: 14px; transition: var(--transition); }
.search-hot-tags a:hover { background: var(--primary); color: #fff; }

/* 搜索表单JS控制 */
.search-form { position: relative; }

/* Hero Banner */
.hero-section { position: relative; min-height: 520px; display: flex; align-items: center; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.hero-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(26,26,46,0.88) 0%, rgba(245,124,0,0.3) 100%); }
.hero-section .container { position: relative; z-index: 2; }
.hero-content { max-width: 680px; color: #fff; padding: 60px 0; }
.ae2op { display: inline-block; background: rgba(245,124,0,0.2); border: 1px solid rgba(245,124,0,0.5); color: var(--accent); padding: 6px 16px; border-radius: 20px; font-size: 13px; font-weight: 600; margin-bottom: 16px; }
.hero-content h1 { font-size: clamp(32px, 5vw, 52px); font-weight: 900; line-height: 1.2; margin-bottom: 16px; }
.hero-content h1 em { color: var(--accent); }
.hero-content p { font-size: 16px; color: rgba(255,255,255,0.85); line-height: 1.8; margin-bottom: 28px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary { display: inline-flex; align-items: center; gap: 8px; background: var(--primary); color: #fff; padding: 14px 32px; border-radius: 28px; font-size: 15px; font-weight: 700; transition: var(--transition); box-shadow: 0 4px 16px rgba(245,124,0,0.3); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); color: #fff; box-shadow: 0 6px 24px rgba(245,124,0,0.4); }
.btn-outline { display: inline-flex; align-items: center; gap: 8px; border: 2px solid rgba(255,255,255,0.5); color: #fff; padding: 12px 28px; border-radius: 28px; font-size: 15px; font-weight: 600; transition: var(--transition); }
.btn-outline:hover { border-color: var(--accent); background: rgba(245,124,0,0.1); color: #fff; }

.bdy0v5s { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 40px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.15); }
.bdy0v5 .num { font-size: 28px; font-weight: 900; color: var(--accent); }
.bdy0v5 .label { font-size: 12px; color: rgba(255,255,255,0.65); margin-top: 4px; }

/* 通用区块 */
.section { padding: 64px 0; }
.section-alt { background: #fff; }
.section-dark { background: linear-gradient(135deg, var(--dark) 0%, var(--dark-mid) 100%); color: #fff; }
.section-orange { background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%); }
.section-header { text-align: center; margin-bottom: 40px; }
.section-tag { display: inline-block; background: var(--primary-light); color: var(--primary); padding: 5px 14px; border-radius: 16px; font-size: 12px; font-weight: 700; margin-bottom: 10px; border: 1px solid rgba(245,124,0,0.2); }
.section-header h2 { font-size: clamp(24px, 3vw, 34px); font-weight: 900; line-height: 1.3; }
.section-header h2 em { color: var(--primary); }

/* 视频卡片网格 */
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; }
.video-card { background: var(--bg-card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); border: 1px solid var(--border); }
.video-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--primary); }
.video-thumb { position: relative; aspect-ratio: 16/9; overflow: hidden; background: var(--dark); }
.video-thumb img, .video-thumb video { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.video-card:hover .video-thumb img, .video-card:hover .video-thumb video { transform: scale(1.05); }
.video-play-btn { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; opacity: 0; transition: var(--transition); background: rgba(0,0,0,0.4); }
.video-card:hover .video-play-btn { opacity: 1; }
.play-icon { width: 56px; height: 56px; background: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 20px rgba(245,124,0,0.4); }
.play-icon::after { content: ""; border-style: solid; border-width: 10px 0 10px 18px; border-color: transparent transparent transparent #fff; margin-left: 4px; }
.video-tag { position: absolute; top: 12px; left: 12px; background: var(--primary); color: #fff; padding: 3px 10px; border-radius: 12px; font-size: 11px; font-weight: 700; }
.video-duration { position: absolute; bottom: 12px; right: 12px; background: rgba(0,0,0,0.75); color: #fff; padding: 3px 8px; border-radius: 6px; font-size: 11px; font-weight: 600; }
.video-info { padding: 16px; }
.video-info h3 { font-size: 15px; font-weight: 700; line-height: 1.5; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.video-meta { display: flex; gap: 12px; font-size: 12px; color: var(--text-light); margin-bottom: 6px; }
.video-stats { display: flex; gap: 14px; font-size: 12px; color: var(--text-mid); }

/* 功能卡片 */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.feature-card { background: var(--bg-card); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); transition: var(--transition); border: 1px solid var(--border); text-align: center; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--primary); }
.feature-icon { font-size: 42px; margin-bottom: 14px; }
.feature-card h3 { font-size: 17px; font-weight: 800; margin-bottom: 6px; }
.feature-card p { font-size: 13px; color: var(--text-mid); line-height: 1.7; }

/* 专家卡片 */
.expert-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 24px; }
.expert-card { background: var(--bg-card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); display: flex; flex-direction: column; border: 1px solid var(--border); transition: var(--transition); }
.expert-card:hover { box-shadow: var(--shadow-hover); border-color: var(--primary); }
.expert-photo { position: relative; height: 200px; overflow: hidden; }
.expert-photo img { width: 100%; height: 100%; object-fit: cover; }
.expert-badge { position: absolute; bottom: 12px; left: 12px; background: var(--primary); color: #fff; padding: 4px 12px; border-radius: 14px; font-size: 12px; font-weight: 700; }
.expert-info { padding: 20px; flex: 1; }
.expert-info h3 { font-size: 18px; font-weight: 800; margin-bottom: 4px; }
.expert-title { font-size: 13px; color: var(--primary); font-weight: 600; margin-bottom: 10px; }
.expert-desc { font-size: 13px; color: var(--text-mid); line-height: 1.7; margin-bottom: 12px; }
.expert-awards { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.expert-awards span { background: var(--primary-light); color: var(--primary-dark); padding: 3px 10px; border-radius: 12px; font-size: 11px; font-weight: 600; }
.expert-actions { display: flex; gap: 8px; }
.btn-sm { padding: 8px 18px; border-radius: 20px; font-size: 13px; font-weight: 600; transition: var(--transition); display: inline-block; }
.btn-sm-primary { background: var(--primary); color: #fff; }
.btn-sm-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-sm-outline { border: 1.5px solid var(--primary); color: var(--primary); }
.btn-sm-outline:hover { background: var(--primary); color: #fff; }

/* 评价 */
.review-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; }
.review-card { background: var(--bg-card); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); border: 1px solid var(--border); }
.review-stars { color: var(--accent); font-size: 16px; margin-bottom: 10px; }
.review-text { font-size: 14px; color: var(--text-mid); line-height: 1.8; margin-bottom: 14px; font-style: italic; }
.review-author { display: flex; align-items: center; gap: 10px; }
.review-avatar { width: 38px; height: 38px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--accent)); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; font-size: 14px; }
.review-name { font-size: 14px; font-weight: 700; }
.review-date { font-size: 12px; color: var(--text-light); }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 10px; overflow: hidden; background: var(--bg-card); }
.faq-question { padding: 18px 20px; font-size: 15px; font-weight: 700; cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: var(--transition); }
.faq-question:hover { color: var(--primary); }
.faq-icon { font-size: 20px; color: var(--primary); transition: transform 0.3s; font-weight: 300; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer { padding: 0 20px 18px; font-size: 14px; color: var(--text-mid); line-height: 1.8; display: none; }
.faq-item.open .faq-answer { display: block; }

/* 标签云 */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { background: var(--bg-body); border: 1px solid var(--border); color: var(--text-mid); padding: 6px 14px; border-radius: 18px; font-size: 12px; font-weight: 600; transition: var(--transition); }
.tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* 合作品牌墙 */
.partner-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 16px; }
.partner-item { background: var(--bg-card); border-radius: var(--radius-sm); padding: 20px; text-align: center; box-shadow: var(--shadow); border: 1px solid var(--border); transition: var(--transition); }
.partner-item:hover { border-color: var(--primary); transform: translateY(-2px); }
.partner-icon { font-size: 32px; margin-bottom: 8px; }

/* 社区入口 */
.community-entry-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 16px; }
.community-entry { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); border-radius: var(--radius); padding: 24px 16px; text-align: center; color: #fff; transition: var(--transition); display: block; }
.community-entry:hover { transform: translateY(-4px); box-shadow: 0 8px 28px rgba(245,124,0,0.3); color: #fff; }
.community-entry .icon { font-size: 32px; margin-bottom: 10px; }
.community-entry h4 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }
.community-entry p { font-size: 11px; opacity: 0.8; }

/* 联系区域 */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.contact-info h3 { font-size: 20px; font-weight: 800; margin-bottom: 20px; color: var(--text-dark); }
.contact-item { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 16px; }
.contact-icon { font-size: 22px; width: 44px; height: 44px; background: var(--primary-light); border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-item h4 { font-size: 13px; font-weight: 700; color: var(--text-dark); margin-bottom: 2px; }
.contact-item p { font-size: 13px; color: var(--text-mid); }
.qrcode-row { display: flex; gap: 20px; flex-wrap: wrap; }
.qrcode-item { text-align: center; }
.qrcode-item img { width: 120px; height: 120px; border-radius: 12px; border: 2px solid var(--border); margin-bottom: 8px; }
.qrcode-item p { font-size: 12px; color: var(--text-mid); line-height: 1.5; }

/* 分享栏 */
.share-bar { display: flex; align-items: center; gap: 12px; justify-content: center; flex-wrap: wrap; }
.share-bar span { font-size: 14px; color: var(--text-mid); font-weight: 600; }
.share-btn { padding: 8px 18px; border-radius: 20px; font-size: 13px; font-weight: 600; color: #fff; transition: var(--transition); }
.share-btn:hover { transform: translateY(-2px); color: #fff; }
.share-wechat { background: #07c160; }
.share-weibo { background: #e6162d; }
.share-douyin { background: #1a1a1a; }
.share-bilibili { background: #00a1d6; }

/* 面包屑 */
.breadcrumb { background: #fff; border-bottom: 1px solid var(--border); padding: 12px 0; }
.breadcrumb ol { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.breadcrumb li::after { content: "/"; margin-left: 8px; color: var(--text-light); }
.breadcrumb li:last-child::after { display: none; }
.breadcrumb a { color: var(--text-mid); }
.breadcrumb a:hover { color: var(--primary); }

/* 页面Hero */
.page-hero { background: linear-gradient(135deg, var(--dark) 0%, var(--primary-dark) 100%); padding: 48px 0; color: #fff; }
.page-hero h1 { font-size: clamp(26px, 4vw, 38px); font-weight: 900; }

/* 加载更多 */
.fvhsr { text-align: center; margin-top: 36px; }
.ygz5bu8t { display: inline-block; padding: 12px 36px; border-radius: 28px; background: var(--primary-light); color: var(--primary); font-size: 14px; font-weight: 700; border: 2px solid var(--primary); transition: var(--transition); }
.ygz5bu8t:hover { background: var(--primary); color: #fff; }

/* 页脚 */
.site-footer { background: var(--dark); color: rgba(255,255,255,0.75); padding: 48px 0 0; }
.footer-main { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-brand p { font-size: 13px; line-height: 1.8; margin-top: 12px; color: rgba(255,255,255,0.6); }
.footer-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 13px; transition: var(--transition); }
.footer-col ul li a:hover { color: var(--accent); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 20px 0; font-size: 12px; color: rgba(255,255,255,0.5); flex-wrap: wrap; gap: 10px; }
.footer-bottom a { color: var(--accent); }
.footer-update { color: rgba(255,255,255,0.5); }

/* 回到顶部 */
#u96ewb9 { position: fixed; bottom: 30px; right: 30px; width: 44px; height: 44px; background: var(--primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 18px; box-shadow: 0 4px 16px rgba(245,124,0,0.3); opacity: 0; visibility: hidden; transition: var(--transition); z-index: 999; }
#u96ewb9.show { opacity: 1; visibility: visible; }
#u96ewb9:hover { background: var(--primary-dark); transform: translateY(-3px); color: #fff; }

/* 响应式 */
@media (max-width: 1024px) {
  .footer-main { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .bdy0v5s { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .main-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px; box-shadow: var(--shadow); border-top: 2px solid var(--primary); }
  .main-nav.open { display: flex; }
  .menu-toggle { display: block; }
  .header-search { display: none; }
  .hero-section { min-height: 420px; }
  .hero-content { padding: 40px 0; }
  .bdy0v5s { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .video-grid { grid-template-columns: 1fr; }
  .expert-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; }
  .section { padding: 40px 0; }
}
@media (max-width: 480px) {
  .hero-content h1 { font-size: 28px; }
  .bdy0v5 .num { font-size: 22px; }
  .btn-primary, .btn-outline { padding: 12px 20px; font-size: 14px; }
}