/* ============================================
   福利姬 修车改装 - 主样式文件
   houyangLife.cn
   原创工业竞速风格设计
   ============================================ */

:root {
  --primary: #e85d04;
  --primary-dark: #c44d00;
  --primary-light: #fff0e6;
  --secondary: #0d1117;
  --accent: #ff9a3c;
  --neon: #00d4ff;
  --bg-main: #f4f5f7;
  --bg-dark: #0d1117;
  --bg-card: #ffffff;
  --bg-mid: #1a2332;
  --text-main: #1a1a2e;
  --text-muted: #6b7280;
  --text-light: #ffffff;
  --border: #e5e7eb;
  --border-dark: #2d3748;
  --shadow: 0 4px 24px rgba(232,93,4,0.10);
  --shadow-hover: 0 10px 40px rgba(232,93,4,0.22);
  --radius: 12px;
  --radius-sm: 6px;
  --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:'PingFang SC','Microsoft YaHei','Hiragino Sans GB',Arial,sans-serif;
  background:var(--bg-main);
  color:var(--text-main);
  line-height:1.7;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:var(--transition);}
a:hover{color:var(--primary-dark);}
ul{list-style:none;}

/* ===== 顶部公告 ===== */
.top-bar{
  background:linear-gradient(90deg,var(--secondary) 0%,#1a2332 100%);
  color:rgba(255,255,255,0.85);
  font-size:13px;
  padding:7px 0;
  text-align:center;
  letter-spacing:0.5px;
  border-bottom:2px solid var(--primary);
}
.top-bar a{color:var(--accent);}
.top-bar strong{color:var(--primary);}

/* ===== 头部 ===== */
.site-header{
  background:#fff;
  box-shadow:0 2px 20px rgba(0,0,0,0.08);
  position:sticky;
  top:0;
  z-index:1000;
  border-bottom:3px solid var(--primary);
}
.header-inner{
  max-width:1280px;
  margin:0 auto;
  padding:0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:68px;
}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;}
.logo-icon{
  width:48px;height:48px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:900;color:#fff;
  letter-spacing:-1px;
  box-shadow:0 4px 14px rgba(232,93,4,0.4);
  position:relative;overflow:hidden;
}
.logo-icon::after{
  content:'';position:absolute;top:-50%;right:-20%;
  width:60%;height:200%;
  background:rgba(255,255,255,0.15);
  transform:skewX(-20deg);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-name{font-size:24px;font-weight:900;color:var(--secondary);letter-spacing:3px;}
.logo-name span{color:var(--primary);}
.logo-slogan{font-size:11px;color:var(--text-muted);letter-spacing:1px;}

.main-nav{display:flex;align-items:center;gap:2px;}
.main-nav a{
  padding:8px 15px;border-radius:var(--radius-sm);
  font-size:14px;font-weight:600;color:var(--text-main);
  transition:var(--transition);position:relative;
}
.main-nav a:hover,.main-nav a.active{color:var(--primary);background:var(--primary-light);}
.main-nav a.active::after{
  content:'';position:absolute;bottom:0;left:50%;
  transform:translateX(-50%);width:20px;height:3px;
  background:var(--primary);border-radius:2px;
}
.nav-cta{
  background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%) !important;
  color:#fff !important;padding:9px 22px !important;
  border-radius:24px !important;font-weight:700 !important;
  box-shadow:0 4px 14px rgba(232,93,4,0.35);
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(232,93,4,0.5);background:var(--primary-dark) !important;}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px;}
.hamburger span{width:24px;height:2px;background:var(--text-main);border-radius:2px;transition:var(--transition);}

/* ===== 搜索栏 ===== */
.search-bar-wrap{
  background:linear-gradient(135deg,#1a2332 0%,#0d1117 100%);
  padding:12px 0;
  border-bottom:1px solid var(--border-dark);
}
.search-bar-inner{
  max-width:1280px;margin:0 auto;padding:0 24px;
  display:flex;align-items:center;gap:14px;
}
.search-form{
  display:flex;align-items:center;
  background:rgba(255,255,255,0.08);
  border:1px solid rgba(255,255,255,0.15);
  border-radius:32px;overflow:hidden;flex:1;max-width:580px;
  transition:var(--transition);
}
.search-form:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(232,93,4,0.2);}
.search-form input{
  flex:1;border:none;outline:none;
  padding:10px 20px;font-size:14px;
  background:transparent;color:#fff;
}
.search-form input::placeholder{color:rgba(255,255,255,0.4);}
.search-form button{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  border:none;color:#fff;padding:10px 24px;
  cursor:pointer;font-size:14px;font-weight:700;
  transition:var(--transition);letter-spacing:0.5px;
}
.search-form button:hover{background:var(--primary-dark);}
.search-tags{display:flex;gap:8px;flex-wrap:wrap;}
.search-tag{
  background:rgba(232,93,4,0.2);color:var(--accent);
  padding:4px 12px;border-radius:14px;font-size:12px;
  cursor:pointer;transition:var(--transition);border:1px solid rgba(232,93,4,0.3);
}
.search-tag:hover{background:var(--primary);color:#fff;border-color:var(--primary);}

/* ===== 面包屑 ===== */
.breadcrumb{
  max-width:1280px;margin:0 auto;padding:12px 24px;
  font-size:13px;color:var(--text-muted);
}
.breadcrumb a{color:var(--text-muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span{margin:0 6px;}

/* ===== 通用 ===== */
.container{max-width:1280px;margin:0 auto;padding:0 24px;}
.section{padding:72px 0;}
.section-sm{padding:48px 0;}
.section-title{text-align:center;margin-bottom:48px;}
.section-title h2{
  font-size:30px;font-weight:900;color:var(--secondary);
  margin-bottom:12px;position:relative;display:inline-block;
}
.section-title h2::after{
  content:'';position:absolute;bottom:-8px;left:50%;
  transform:translateX(-50%);width:50px;height:4px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  border-radius:2px;
}
.section-title p{color:var(--text-muted);font-size:15px;margin-top:18px;}
.section-title .badge{
  display:inline-block;background:var(--primary);color:#fff;
  padding:3px 14px;border-radius:4px;font-size:12px;font-weight:700;
  margin-bottom:12px;letter-spacing:1px;text-transform:uppercase;
}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 30px;border-radius:6px;font-size:15px;
  font-weight:700;cursor:pointer;transition:var(--transition);
  border:none;text-decoration:none;letter-spacing:0.5px;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);
  color:#fff;box-shadow:0 6px 20px rgba(232,93,4,0.4);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(232,93,4,0.5);color:#fff;}
.btn-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,0.5);}
.btn-outline:hover{background:rgba(255,255,255,0.1);border-color:#fff;color:#fff;}
.btn-dark{background:var(--secondary);color:#fff;}
.btn-dark:hover{background:var(--bg-mid);color:#fff;}

/* ===== Hero Banner ===== */
.hero{
  position:relative;min-height:620px;
  display:flex;align-items:center;overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('../images/hero_banner.jpg');
  background-size:cover;background-position:center;
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(13,17,23,0.92) 0%,rgba(232,93,4,0.5) 100%);
}
/* 装饰性斜线 */
.hero-deco{
  position:absolute;right:0;top:0;bottom:0;width:45%;
  background:linear-gradient(135deg,transparent 0%,rgba(232,93,4,0.08) 100%);
  clip-path:polygon(15% 0,100% 0,100% 100%,0% 100%);
}
.hero-content{
  position:relative;z-index:2;
  max-width:1280px;margin:0 auto;padding:80px 24px;
  display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;
}
.hero-text .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(232,93,4,0.2);border:1px solid rgba(232,93,4,0.4);
  color:var(--accent);padding:6px 16px;border-radius:4px;
  font-size:12px;font-weight:700;letter-spacing:2px;
  text-transform:uppercase;margin-bottom:20px;
}
.hero-text h1{
  font-size:54px;font-weight:900;color:#fff;
  line-height:1.15;margin-bottom:20px;
  text-shadow:0 2px 20px rgba(0,0,0,0.5);
}
.hero-text h1 em{color:var(--accent);font-style:normal;}
.hero-text p{
  font-size:17px;color:rgba(255,255,255,0.8);
  margin-bottom:36px;line-height:1.8;
}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;}
.hero-stats{
  display:flex;gap:0;margin-top:48px;
  border:1px solid rgba(255,255,255,0.1);
  border-radius:8px;overflow:hidden;
}
.hero-stat{
  flex:1;padding:16px 20px;text-align:center;
  border-right:1px solid rgba(255,255,255,0.1);
}
.hero-stat:last-child{border-right:none;}
.hero-stat .num{font-size:26px;font-weight:900;color:var(--accent);}
.hero-stat .lbl{font-size:12px;color:rgba(255,255,255,0.6);margin-top:2px;}

/* 右侧视频卡片 */
.hero-video-wrap{position:relative;}
.hero-vid-card{
  background:rgba(255,255,255,0.05);
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,0.15);
  border-radius:16px;overflow:hidden;cursor:pointer;
}
.hero-vid-card img{width:100%;aspect-ratio:16/9;object-fit:cover;opacity:0.75;}
.hero-vid-overlay{
  position:absolute;inset:0;display:flex;
  align-items:center;justify-content:center;
  background:rgba(0,0,0,0.25);transition:var(--transition);
}
.hero-vid-card:hover .hero-vid-overlay{background:rgba(232,93,4,0.35);}
.hero-play-btn{
  width:72px;height:72px;background:rgba(255,255,255,0.95);
  border-radius:50%;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 32px rgba(0,0,0,0.4);transition:var(--transition);
}
.hero-play-btn::after{
  content:'';width:0;height:0;
  border-top:14px solid transparent;border-bottom:14px solid transparent;
  border-left:24px solid var(--primary);margin-left:5px;
}
.hero-vid-card:hover .hero-play-btn{transform:scale(1.1);}
.hero-vid-info{padding:16px 20px;display:flex;justify-content:space-between;align-items:center;}
.hero-vid-title{color:#fff;font-size:14px;font-weight:600;}
.hero-vid-meta{color:rgba(255,255,255,0.5);font-size:12px;}

/* ===== 视频卡片 ===== */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.video-card{
  background:var(--bg-card);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
  transition:var(--transition);cursor:pointer;
  border:1px solid var(--border);
}
.video-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:var(--primary);}
.v-thumb{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background:var(--secondary);
}
.v-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform 0.4s ease;
}
.video-card:hover .v-thumb img{transform:scale(1.06);}
.v-play-overlay{
  position:absolute;inset:0;background:rgba(0,0,0,0.35);
  display:flex;align-items:center;justify-content:center;
  opacity:0;transition:var(--transition);
}
.video-card:hover .v-play-overlay{opacity:1;}
.v-play-icon{
  width:54px;height:54px;background:rgba(255,255,255,0.95);
  border-radius:50%;display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 20px rgba(0,0,0,0.3);
  transform:scale(0.85);transition:var(--transition);
}
.video-card:hover .v-play-icon{transform:scale(1);}
.v-play-icon::after{
  content:'';width:0;height:0;
  border-top:10px solid transparent;border-bottom:10px solid transparent;
  border-left:18px solid var(--primary);margin-left:4px;
}
.v-duration{
  position:absolute;bottom:8px;right:8px;
  background:rgba(0,0,0,0.78);color:#fff;
  font-size:11px;padding:2px 7px;border-radius:3px;
}
.v-badge{
  position:absolute;top:8px;left:8px;
  background:var(--primary);color:#fff;
  font-size:11px;padding:2px 8px;border-radius:3px;font-weight:700;
}
.v-badge.hot{background:#e63946;}
.v-badge.new{background:#06d6a0;}
.v-info{padding:14px;}
.v-title{
  font-size:14px;font-weight:700;color:var(--text-main);
  margin-bottom:8px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.v-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-muted);}
.v-stats{display:flex;gap:10px;}
.v-stat{display:flex;align-items:center;gap:3px;}

/* ===== 分类标签 ===== */
.cat-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px;}
.cat-tab{
  padding:8px 20px;border-radius:4px;font-size:14px;font-weight:600;
  cursor:pointer;border:2px solid var(--border);
  background:#fff;color:var(--text-muted);transition:var(--transition);
}
.cat-tab:hover,.cat-tab.active{background:var(--primary);border-color:var(--primary);color:#fff;}

/* ===== 功能模块 ===== */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.feat-card{
  background:var(--bg-card);border-radius:var(--radius);
  padding:32px 28px;box-shadow:var(--shadow);
  transition:var(--transition);border:1px solid var(--border);
  position:relative;overflow:hidden;
}
.feat-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  transform:scaleX(0);transition:var(--transition);
}
.feat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.feat-card:hover::before{transform:scaleX(1);}
.feat-icon{
  width:56px;height:56px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:26px;margin-bottom:20px;
  background:var(--primary-light);
}
.feat-card h3{font-size:18px;font-weight:800;color:var(--secondary);margin-bottom:10px;}
.feat-card p{font-size:14px;color:var(--text-muted);line-height:1.7;}
.feat-link{display:inline-flex;align-items:center;gap:4px;color:var(--primary);font-size:13px;font-weight:700;margin-top:16px;}

/* ===== 专家卡片 ===== */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.cedkrd31q{
  background:var(--bg-card);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);
}
.cedkrd31q:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);}
.cdnqxdpn{position:relative;aspect-ratio:3/4;overflow:hidden;background:var(--bg-main);}
.cdnqxdpn img{width:100%;height:100%;object-fit:cover;}
.c3klvwr21{
  position:absolute;bottom:0;left:0;right:0;
  background:linear-gradient(0deg,rgba(13,17,23,0.9),transparent);
  padding:20px 14px 12px;color:#fff;font-size:12px;font-weight:700;
  letter-spacing:0.5px;
}
.cr9d2hoi{padding:16px;}
.ch0shces{font-size:16px;font-weight:800;color:var(--secondary);margin-bottom:4px;}
.c4p28vj{font-size:12px;color:var(--text-muted);margin-bottom:10px;}
.cuvm8vqf1{display:flex;justify-content:space-between;font-size:12px;color:var(--text-muted);margin-bottom:12px;}
.cikd1xt{display:flex;gap:8px;}
.c9iknhet0{
  flex:1;padding:7px 0;border-radius:4px;font-size:12px;font-weight:700;
  cursor:pointer;transition:var(--transition);border:1px solid var(--primary);
  text-align:center;
}
.cauk0nh{background:var(--primary);color:#fff;}
.cdn3qp0cs{background:transparent;color:var(--primary);}
.c9iknhet0:hover{opacity:0.85;}

/* ===== 评价 ===== */
.review-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.cceefa1mr{
  background:var(--bg-card);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);border:1px solid var(--border);
  transition:var(--transition);
}
.cceefa1mr:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.c0cnucapv{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.c0bxdtk{
  width:44px;height:44px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:18px;font-weight:800;flex-shrink:0;
}
.cgrezrx{flex:1;}
.cqr0unii6{font-size:14px;font-weight:700;color:var(--text-main);}
.cv16h0{font-size:12px;color:var(--text-muted);}
.cgphwe{color:#f59e0b;font-size:14px;margin-bottom:10px;}
.cryqgq{font-size:13px;color:var(--text-muted);line-height:1.7;}
.crak0spt{display:inline-block;background:var(--primary-light);color:var(--primary);padding:2px 8px;border-radius:4px;font-size:11px;margin-top:10px;font-weight:600;}

/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto;}
.faq-item{
  background:var(--bg-card);border-radius:var(--radius-sm);
  margin-bottom:10px;border:1px solid var(--border);overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{border-color:var(--primary);}
.faq-q{
  padding:18px 24px;font-size:15px;font-weight:700;color:var(--text-main);
  cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.faq-q::after{content:'+';font-size:20px;color:var(--primary);flex-shrink:0;transition:var(--transition);}
.faq-item.open .faq-q::after{content:'−';}
.faq-a{
  padding:0 24px;max-height:0;overflow:hidden;
  transition:max-height 0.4s ease,padding 0.3s ease;
  font-size:14px;color:var(--text-muted);line-height:1.8;
}
.faq-item.open .faq-a{max-height:300px;padding:0 24px 18px;}

/* ===== 合作品牌 ===== */
.partner-row{display:flex;flex-wrap:wrap;justify-content:center;gap:20px;}
.partner-item{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius-sm);padding:16px 28px;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;color:var(--text-muted);
  transition:var(--transition);min-width:130px;
}
.partner-item:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow);}

/* ===== 社区入口 ===== */
.cwq9xv26{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.ctsb8yq{
  background:linear-gradient(135deg,var(--bg-mid) 0%,var(--secondary) 100%);
  border-radius:var(--radius);padding:28px 20px;text-align:center;
  color:#fff;transition:var(--transition);cursor:pointer;
  border:1px solid var(--border-dark);position:relative;overflow:hidden;
}
.ctsb8yq::before{
  content:'';position:absolute;top:-50%;left:-50%;
  width:200%;height:200%;
  background:radial-gradient(circle,rgba(232,93,4,0.15) 0%,transparent 60%);
  transition:var(--transition);
}
.ctsb8yq:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,0.3);border-color:var(--primary);}
.c3bptz{font-size:36px;margin-bottom:14px;}
.ctsb8yq h4{font-size:15px;font-weight:800;margin-bottom:6px;}
.ctsb8yq p{font-size:12px;opacity:0.7;}
.csnded0ll{font-size:20px;font-weight:900;color:var(--accent);margin-top:10px;}

/* ===== 联系 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.contact-info h3{font-size:22px;font-weight:800;color:var(--secondary);margin-bottom:24px;}
.c-item{display:flex;gap:14px;margin-bottom:18px;align-items:flex-start;}
.c-icon{
  width:42px;height:42px;background:var(--primary-light);border-radius:8px;
  display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;
}
.c-detail .lbl{font-size:12px;color:var(--text-muted);margin-bottom:2px;}
.c-detail .val{font-size:15px;font-weight:700;color:var(--text-main);}
.qr-row{display:flex;gap:24px;}
.qr-item{text-align:center;}
.qr-item img{width:120px;height:120px;border-radius:10px;border:2px solid var(--border);}
.qr-item p{font-size:12px;color:var(--text-muted);margin-top:8px;}

/* ===== 分享 ===== */
.cywjm2mm8{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.ct5vsx{font-size:14px;color:var(--text-muted);font-weight:700;}
.cp9rb7{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:4px;font-size:13px;font-weight:700;
  cursor:pointer;transition:var(--transition);border:none;text-decoration:none;
}
.chp01341a{background:#07c160;color:#fff;}
.cvg4u9{background:#e6162d;color:#fff;}
.c5q50g{background:#010101;color:#fff;}
.cibt3b{background:#00a1d6;color:#fff;}
.cp9rb7:hover{opacity:0.85;transform:translateY(-1px);}

/* ===== Footer ===== */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,0.7);padding:60px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;
  padding-bottom:48px;border-bottom:1px solid var(--border-dark);
}
.footer-brand .logo-name{color:#fff;font-size:22px;}
.footer-brand .logo-name span{color:var(--accent);}
.footer-brand p{font-size:13px;line-height:1.8;margin-top:12px;opacity:0.65;}
.footer-qr{display:flex;gap:16px;margin-top:20px;}
.footer-qr-item{text-align:center;}
.footer-qr-item img{width:80px;height:80px;border-radius:8px;}
.footer-qr-item p{font-size:11px;opacity:0.55;margin-top:6px;}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:18px;letter-spacing:1px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:13px;color:rgba(255,255,255,0.55);transition:var(--transition);}
.footer-col ul li a:hover{color:var(--accent);padding-left:4px;}
.footer-bottom{
  padding:20px 24px;display:flex;align-items:center;
  justify-content:space-between;font-size:13px;opacity:0.55;
  flex-wrap:wrap;gap:12px;
}
.footer-bottom a{color:rgba(255,255,255,0.55);}
.footer-bottom a:hover{color:var(--accent);}

/* ===== 背景变体 ===== */
.bg-light{background:linear-gradient(135deg,#f8f9fa 0%,#fff 100%);}
.bg-dark-s{background:linear-gradient(135deg,var(--secondary) 0%,var(--bg-mid) 100%);}
.bg-dark-s .section-title h2{color:#fff;}
.bg-dark-s .section-title p{color:rgba(255,255,255,0.65);}
.bg-dark-s .section-title .badge{background:rgba(232,93,4,0.3);color:var(--accent);}

/* ===== 懒加载 ===== */
.lazy-ph{
  background:linear-gradient(90deg,#e5e7eb 25%,#f3f4f6 50%,#e5e7eb 75%);
  background-size:200% 100%;animation:shimmer 1.5s infinite;
}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ===== 页面Hero ===== */
.page-hero{
  background:linear-gradient(135deg,rgba(13,17,23,0.95) 0%,rgba(232,93,4,0.7) 100%),
  url('../images/hero_banner.jpg') center/cover;
  padding:64px 0;text-align:center;color:#fff;
  border-bottom:4px solid var(--primary);
}
.page-hero h1{font-size:36px;font-weight:900;margin-bottom:12px;}
.page-hero p{font-size:16px;opacity:0.8;}

/* ===== 标签列表 ===== */
.tag-list{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px;}
.tag-item{background:var(--primary-light);color:var(--primary);padding:4px 12px;border-radius:4px;font-size:12px;font-weight:600;}

/* ===== 加载更多 ===== */
.load-more-wrap{text-align:center;margin-top:40px;}

/* ===== 数字动画 ===== */
.stat-num{font-size:36px;font-weight:900;color:var(--primary);}

/* ===== 滚动条 ===== */
::-webkit-scrollbar{width:6px;}
::-webkit-scrollbar-track{background:#f1f1f1;}
::-webkit-scrollbar-thumb{background:var(--primary);border-radius:3px;}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .video-grid{grid-template-columns:repeat(3,1fr);}
  .expert-grid,.exp-grid{grid-template-columns:repeat(3,1fr);}
  .review-grid{grid-template-columns:repeat(2,1fr);}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .hero-content{grid-template-columns:1fr;gap:40px;}
  .hero-text h1{font-size:40px;}
  .hero-video-wrap{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cwq9xv26{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:768px){
  .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:16px;box-shadow:0 8px 24px rgba(0,0,0,0.1);}
  .main-nav.open{display:flex;}
  .hamburger{display:flex;}
  .video-grid{grid-template-columns:repeat(2,1fr);}
  .exp-grid,.expert-grid{grid-template-columns:repeat(2,1fr);}
  .review-grid{grid-template-columns:1fr;}
  .feature-grid{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .section{padding:48px 0;}
  .section-title h2{font-size:24px;}
  .hero-text h1{font-size:30px;}
  .search-tags{display:none;}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr;}
  .cwq9xv26{grid-template-columns:1fr 1fr;}
  .hero-btns{flex-direction:column;}
  .btn{justify-content:center;}
}