/* ===== 全局重置 & 基础 ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;
  background:linear-gradient(135deg,#0f0f1a 0%,#1a1a2e 50%,#16213e 100%);
  color:#e0e0e0;line-height:1.6;overflow-x:hidden;min-height:100vh;
  transition:background 0.4s,color 0.4s
}
.dark-mode{
  background:linear-gradient(135deg,#0a0a12 0%,#10101a 50%,#0d1520 100%);
  color:#c0c0c0
}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.glass{
  background:rgba(255,255,255,0.05);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,0.1);border-radius:20px
}
.card{
  background:rgba(255,255,255,0.04);border-radius:16px;padding:30px;
  box-shadow:0 8px 32px rgba(0,0,0,0.3);
  border:1px solid rgba(255,255,255,0.06);
  transition:transform 0.3s ease,box-shadow 0.3s ease
}
.card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(0,0,0,0.5)}
.btn{
  display:inline-block;padding:12px 32px;border-radius:30px;
  text-decoration:none;font-weight:600;transition:all 0.3s ease;
  cursor:pointer;border:none;font-size:1rem
}
.btn-primary{
  background:linear-gradient(135deg,#f0c040,#e0a030);color:#1a1a2e
}
.btn-primary:hover{transform:scale(1.05);box-shadow:0 4px 20px rgba(240,192,64,0.4)}
.btn-outline{
  background:transparent;border:2px solid #f0c040;color:#f0c040
}
.btn-outline:hover{background:#f0c040;color:#1a1a2e}
.section{padding:80px 0}
.section-title{
  font-size:2.5rem;font-weight:800;margin-bottom:20px;
  background:linear-gradient(135deg,#f0c040,#e0a030);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text
}
.section-subtitle{
  font-size:1.1rem;color:#a0a0b0;max-width:600px;
  margin:0 auto 50px;text-align:center
}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}
.grid-4{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px}
.flex-center{display:flex;align-items:center;justify-content:center}
.text-center{text-align:center}
.mt-20{margin-top:20px}.mb-20{margin-bottom:20px}
.hidden{display:none}
img,svg{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}

/* ===== 动画 ===== */
@keyframes fadeInUp{
  from{opacity:0;transform:translateY(30px)}
  to{opacity:1;transform:translateY(0)}
}
@keyframes pulse{
  0%,100%{opacity:0.6}
  50%{opacity:1}
}
.animate-fade{
  opacity:0;transform:translateY(30px);
  transition:opacity 0.6s ease,transform 0.6s ease
}
.animate-fade.visible{opacity:1;transform:translateY(0)}
.stat-number{display:inline-block}
.stat-item .stat-number,.card .stat-number{animation:pulse 2s ease-in-out infinite}

/* ===== 头部 ===== */
header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(15,15,26,0.8);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,0.05);padding:15px 0
}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.logo{
  font-size:1.8rem;font-weight:900;
  background:linear-gradient(135deg,#f0c040,#e0a030);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;text-decoration:none;white-space:nowrap
}
.nav{display:flex;gap:30px;list-style:none}
.nav a{
  color:#c0c0d0;text-decoration:none;font-size:0.95rem;
  font-weight:500;transition:color 0.3s;position:relative
}
.nav a:hover,.nav a.active{color:#f0c040}
.nav a::after{
  content:'';position:absolute;bottom:-4px;left:0;
  width:0;height:2px;background:#f0c040;transition:width 0.3s
}
.nav a:hover::after,.nav a.active::after{width:100%}
.menu-toggle,.dark-toggle{
  background:none;border:none;color:#f0c040;cursor:pointer;padding:8px;
  font-size:1.5rem;display:inline-flex;align-items:center;transition:transform 0.2s
}
.menu-toggle:hover,.dark-toggle:hover{transform:scale(1.1)}
.dark-toggle{font-size:1.2rem}
.mobile-menu{
  display:none;position:fixed;top:70px;left:0;right:0;
  background:rgba(15,15,26,0.95);
  backdrop-filter:blur(20px);padding:20px;
  border-bottom:1px solid rgba(255,255,255,0.1);z-index:999
}
.mobile-menu a{
  display:block;padding:12px 0;color:#c0c0d0;text-decoration:none;
  border-bottom:1px solid rgba(255,255,255,0.05);font-size:1rem
}
.mobile-menu a:hover{color:#f0c040}
.mobile-menu.active{display:block}

/* ===== Hero ===== */
.hero{
  min-height:100vh;display:flex;align-items:center;
  padding-top:80px;position:relative;overflow:hidden
}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(ellipse at 30% 50%,rgba(240,192,64,0.08) 0%,transparent 60%),
    radial-gradient(ellipse at 70% 50%,rgba(26,26,46,0.2) 0%,transparent 60%)
}
.hero-content{position:relative;z-index:1;max-width:800px;margin:0 auto;text-align:center}
.hero h1{
  font-size:4rem;font-weight:900;line-height:1.1;margin-bottom:20px;
  background:linear-gradient(135deg,#f0c040,#e0a030,#c08020);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text
}
.hero p{font-size:1.2rem;color:#a0a0b0;margin-bottom:40px;max-width:600px;margin-left:auto;margin-right:auto}
.hero-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ===== Banner轮播 ===== */
.banner-carousel{
  position:relative;width:100%;overflow:hidden;
  border-radius:20px;margin:40px 0
}
.banner-slide{display:none;width:100%}
.banner-slide.active{display:block}
.banner-slide svg{width:100%;height:auto;display:block}
.carousel-dots{display:flex;justify-content:center;gap:10px;margin-top:20px}
.carousel-dot{
  width:12px;height:12px;border-radius:50%;
  background:rgba(255,255,255,0.2);cursor:pointer;
  transition:background 0.3s,transform 0.2s
}
.carousel-dot.active,.carousel-dot:hover{background:#f0c040;transform:scale(1.2)}

/* ===== 关于 ===== */
.about-section{background:rgba(255,255,255,0.02);border-radius:20px;padding:60px 40px;margin:40px 0}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.about-text p{margin-bottom:20px;font-size:1.05rem;color:#c0c0d0}
.about-text strong{color:#f0c040}
.about-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:20px;margin-top:30px}
.stat-item{
  text-align:center;padding:20px;background:rgba(240,192,64,0.06);
  border-radius:12px;border:1px solid rgba(240,192,64,0.1)
}
.stat-number{font-size:2.5rem;font-weight:800;color:#f0c040;display:block}
.stat-label{font-size:0.9rem;color:#a0a0b0;margin-top:8px}

/* ===== 服务/产品卡片 ===== */
.services-grid .service-icon{margin-bottom:16px}
.services-grid h3{font-size:1.4rem;margin-bottom:12px;color:#f0c040}
.services-grid p{color:#b0b0c0;font-size:0.95rem}

/* ===== 案例 ===== */
.cases-grid .case-card{padding:0;overflow:hidden}
.case-card .case-image{
  height:200px;
  background:linear-gradient(135deg,rgba(240,192,64,0.1),rgba(26,26,46,0.3));
  display:flex;align-items:center;justify-content:center
}
.case-card .case-content{padding:24px}
.case-card h4{color:#f0c040;margin-bottom:8px}
.case-card p{color:#b0b0c0;font-size:0.9rem}

/* ===== 团队 ===== */
.team-grid .team-card{text-align:center}
.team-card .team-avatar{
  margin:0 auto 16px;border-radius:50%;overflow:hidden;
  width:120px;height:120px;
  background:linear-gradient(135deg,rgba(240,192,64,0.2),rgba(26,26,46,0.3));
  display:flex;align-items:center;justify-content:center
}
.team-card h4{color:#f0c040;margin-bottom:4px}
.team-card .role{color:#a0a0b0;font-size:0.85rem;margin-bottom:12px}
.team-card p{color:#b0b0c0;font-size:0.9rem}

/* ===== FAQ ===== */
.faq-item{border-bottom:1px solid rgba(255,255,255,0.06);padding:20px 0}
.faq-question{
  display:flex;justify-content:space-between;align-items:center;
  cursor:pointer;font-size:1.1rem;font-weight:600;color:#e0e0e0;
  background:none;border:none;width:100%;text-align:left;padding:0
}
.faq-question:hover{color:#f0c040}
.faq-question .icon{font-size:1.5rem;transition:transform 0.3s}
.faq-item.open .faq-question .icon{transform:rotate(45deg)}
.faq-answer{padding-top:16px;color:#a0a0b0;display:none;line-height:1.6}
.faq-item.open .faq-answer{display:block}

/* ===== 新闻 ===== */
.news-grid .news-card{padding:0;overflow:hidden}
.news-card .news-image{
  height:180px;
  background:linear-gradient(135deg,rgba(240,192,64,0.08),rgba(26,26,46,0.2));
  display:flex;align-items:center;justify-content:center
}
.news-card .news-content{padding:24px}
.news-card .date{color:#888;font-size:0.85rem;margin-bottom:8px}
.news-card h4{color:#f0c040;margin-bottom:8px}
.news-card p{color:#b0b0c0;font-size:0.9rem}

/* ===== 合作伙伴 ===== */
.partner-grid{display:flex;flex-wrap:wrap;gap:20px;justify-content:center}
.partner-item{
  background:rgba(255,255,255,0.03);border-radius:12px;
  padding:20px 30px;border:1px solid rgba(255,255,255,0.05);
  transition:all 0.3s;font-weight:500;color:#c0c0d0
}
.partner-item:hover{border-color:#f0c040;background:rgba(240,192,64,0.05);color:#f0c040;transform:translateY(-2px)}

/* ===== 评价 ===== */
.testimonial-card{
  background:rgba(255,255,255,0.03);border-radius:16px;
  padding:30px;border:1px solid rgba(255,255,255,0.06)
}
.testimonial-card .quote{font-style:italic;color:#c0c0d0;margin-bottom:16px}
.testimonial-card .author{color:#f0c040;font-weight:600}

/* ===== HowTo ===== */
.howto-step{display:flex;gap:20px;margin-bottom:30px;align-items:flex-start}
.howto-step .step-number{
  background:linear-gradient(135deg,#f0c040,#e0a030);
  color:#1a1a2e;width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;flex-shrink:0;font-size:1.1rem
}
.howto-step h4{color:#f0c040;margin-bottom:6px}
.howto-step p{color:#b0b0c0}

/* ===== 面包屑 ===== */
.breadcrumb{display:flex;gap:10px;list-style:none;padding:20px 0;font-size:0.9rem;color:#888;flex-wrap:wrap}
.breadcrumb li+li::before{content:'/';margin-right:10px;color:#555}
.breadcrumb a{color:#f0c040;text-decoration:none}
.breadcrumb a:hover{text-decoration:underline}

/* ===== 搜索 ===== */
.search-box{display:flex;gap:10px;max-width:500px;margin:0 auto}
.search-box input{
  flex:1;padding:12px 20px;border-radius:30px;
  border:1px solid rgba(255,255,255,0.1);
  background:rgba(255,255,255,0.05);color:#e0e0e0;
  font-size:1rem;outline:none;transition:border-color 0.3s
}
.search-box input:focus{border-color:#f0c040;background:rgba(255,255,255,0.08)}
.search-box input::placeholder{color:#666}
.search-box button{
  padding:12px 24px;border-radius:30px;
  background:linear-gradient(135deg,#f0c040,#e0a030);
  color:#1a1a2e;border:none;font-weight:600;cursor:pointer;
  transition:transform 0.2s,box-shadow 0.2s
}
.search-box button:hover{transform:scale(1.03);box-shadow:0 4px 15px rgba(240,192,64,0.3)}

/* ===== 网站地图 ===== */
.sitemap-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.sitemap-links a{
  color:#a0a0b0;text-decoration:none;padding:6px 14px;
  border-radius:20px;background:rgba(255,255,255,0.03);
  border:1px solid rgba(255,255,255,0.05);
  font-size:0.85rem;transition:all 0.3s
}
.sitemap-links a:hover{
  background:rgba(240,192,64,0.1);border-color:#f0c040;color:#f0c040
}

/* ===== 联系信息 ===== */
.contact-info p{margin-bottom:10px;color:#b0b0c0}
.contact-info strong{color:#f0c040}

/* ===== Footer ===== */
.footer{
  background:rgba(0,0,0,0.3);border-top:1px solid rgba(255,255,255,0.05);
  padding:60px 0 30px;margin-top:80px
}
.footer-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:40px;margin-bottom:40px
}
.footer-col h4{color:#f0c040;margin-bottom:20px;font-size:1.1rem}
.footer-col a{
  display:block;color:#a0a0b0;text-decoration:none;
  padding:6px 0;font-size:0.9rem;transition:color 0.3s
}
.footer-col a:hover{color:#f0c040;padding-left:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.05);
  padding-top:20px;display:flex;flex-wrap:wrap;
  justify-content:space-between;align-items:center;
  font-size:0.85rem;color:#888;gap:15px
}
.footer-bottom a{color:#f0c040;text-decoration:none}
.footer-bottom a:hover{text-decoration:underline}
.privacy-links a{color:#888;text-decoration:none;margin:0 10px;font-size:0.85rem}
.privacy-links a:hover{color:#f0c040}

/* ===== 返回顶部 ===== */
.back-to-top{
  position:fixed;bottom:30px;right:30px;
  width:50px;height:50px;border-radius:50%;
  background:linear-gradient(135deg,#f0c040,#e0a030);
  color:#1a1a2e;border:none;font-size:1.5rem;
  cursor:pointer;opacity:0;visibility:hidden;
  transition:all 0.3s;z-index:999;
  box-shadow:0 4px 20px rgba(240,192,64,0.3);
  display:flex;align-items:center;justify-content:center
}
.back-to-top.visible{opacity:1;visibility:visible}
.back-to-top:hover{transform:scale(1.1);box-shadow:0 6px 25px rgba(240,192,64,0.5)}

/* ===== 搜索结果显示 ===== */
#searchResults p{
  padding:8px 0;border-bottom:1px solid rgba(255,255,255,0.05);
  color:#c0c0d0;font-size:0.95rem
}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .about-grid{grid-template-columns:1fr;gap:30px}
  .hero h1{font-size:3rem}
}
@media(max-width:768px){
  .section{padding:60px 0}
  .section-title{font-size:2rem}
  .grid-3,.grid-4{grid-template-columns:1fr}
  .nav{display:none}
  .menu-toggle{display:block}
  .hero h1{font-size:2.5rem}
  .hero p{font-size:1rem}
  .hero-buttons{flex-direction:column;align-items:center}
  .hero-buttons .btn{width:100%;max-width:280px;text-align:center}
  .about-section{padding:30px 20px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .back-to-top{width:44px;height:44px;font-size:1.2rem;bottom:20px;right:20px}
  .search-box{flex-direction:column}
  .search-box input{width:100%}
  .search-box button{width:100%}
  .howto-step{flex-direction:column}
  .howto-step .step-number{margin-bottom:8px}
  .banner-carousel{margin:20px 0}
}
@media(max-width:480px){
  .hero h1{font-size:2rem}
  .section-title{font-size:1.6rem}
  .header-inner{padding:0 10px}
  .logo{font-size:1.4rem}
  .footer-grid{grid-template-columns:1fr}
  .partner-item{padding:15px 20px}
  .card{padding:20px}
}

/* ===== 暗色模式微调 ===== */
.dark-mode .glass{background:rgba(255,255,255,0.03);border-color:rgba(255,255,255,0.06)}
.dark-mode .card{background:rgba(255,255,255,0.02);border-color:rgba(255,255,255,0.04)}
.dark-mode header{background:rgba(10,10,18,0.85)}
.dark-mode .mobile-menu{background:rgba(10,10,18,0.95)}
.dark-mode .stat-item{background:rgba(240,192,64,0.04)}
.dark-mode .partner-item{background:rgba(255,255,255,0.02)}
.dark-mode .testimonial-card{background:rgba(255,255,255,0.02)}
.dark-mode .search-box input{background:rgba(255,255,255,0.03);color:#c0c0c0}

/* ===== 打印样式 ===== */
@media print{
  header,.back-to-top,.mobile-menu,.banner-carousel,.search-box{display:none!important}
  body{background:#fff;color:#000}
  .section{padding:30px 0}
  .card{box-shadow:none;border:1px solid #ddd}
}