:root{
      /* 品牌色彩更新为蓝紫渐变系，增强科技感和权威感 */
      --brand-primary: #3b82f6;      /* 主蓝色 */
      --brand-secondary: #8b5cf6;    /* 辅助紫色 */
      --brand-gradient: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
      --accent: #f97316;             /* 亮橙色用于突出按钮和交互元素 */
      --accent-hover: #ea580c;
      --ink: #0f172a;                 /* 深色文字 */
      --muted: #64748b;               /* 次级文字 */
      --light-muted: #94a3b8;         /* 更浅的文字 */
      --bg-dark: #0f172a;             /* 顶部/底部深色 */
      --bg-light: #f8fafc;            /* 浅色背景 */
      --card: #ffffff;                /* 白卡片 */
      --border: #e2e8f0;              /* 边框色 */
      --radius: 12px;
      --shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.1), 0 8px 10px -6px rgba(59, 130, 246, 0.05);
      --shadow-hover: 0 20px 25px -5px rgba(59, 130, 246, 0.1), 0 10px 10px -5px rgba(59, 130, 246, 0.04);
      --maxw: 1200px;
      --transition: all 0.3s ease;
    }
    *{box-sizing:border-box}
    html,body{margin:0;height:100%;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,"Helvetica Neue",Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;color:var(--ink);background:var(--bg-light);scroll-behavior: smooth;}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    .container{max-width:var(--maxw);margin:0 auto;padding:0 20px}

    /* 顶部导航 */
    header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border);transition: var(--transition);}
    header.scrolled {box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);}
    .nav{display:flex;align-items:center;justify-content:space-between;height:72px}
    .logo{display:flex;gap:10px;align-items:center;font-weight:800;letter-spacing:.3px;font-size:1.25rem;color:var(--brand-primary);}
    .logo .dot{width:12px;height:12px;background:var(--brand-gradient);border-radius:50%}
    nav ul{display:flex;gap:32px;list-style:none;margin:0;padding:0}
    nav a{font-size:15px;color:var(--ink);font-weight:500;position:relative;padding:5px 0;transition: var(--transition);}
    nav a:hover{color:var(--brand-primary);}
    nav a:after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--brand-gradient);transition: var(--transition);}
    nav a:hover:after{width:100%;}
    .cta{display:inline-flex;align-items:center;gap:10px;background:var(--accent);color:#fff;padding:10px 20px;border-radius:999px;box-shadow:0 4px 6px -1px rgba(249, 115, 22, 0.2);font-weight:500;transition: var(--transition);}
    .cta:hover{transform:translateY(-2px);background:var(--accent-hover);box-shadow:0 10px 15px -3px rgba(249, 115, 22, 0.2);}

    /* 招聘Banner */
    .recruit-hero{position:relative;background:var(--bg-dark);color:white;overflow:hidden;padding:80px 0 100px;}
    .recruit-hero:before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: radial-gradient(circle at 30% 50%, rgba(59, 130, 246, 0.2) 0%, transparent 60%),
                  radial-gradient(circle at 70% 70%, rgba(139, 92, 246, 0.2) 0%, transparent 60%);
      z-index: 0;
    }
    .hero-content{position:relative;z-index:1;max-width:800px;margin:0 auto;text-align:center;}
    .hero-content h1{font-size:clamp(2.2rem, 5vw, 3.8rem);line-height:1.2;margin:0 0 20px;}
    .hero-content h1 span{background:var(--brand-gradient);-webkit-background-clip:text;background-clip:text;color:transparent;}
    .hero-content p{color:#cbd5e1;font-size:19px;margin:0 0 36px;line-height:1.7;}
    .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:50px;}
    .hero-stat{background:rgba(255,255,255,0.05);backdrop-filter:blur(10px);border-radius:var(--radius);padding:20px;border:1px solid rgba(255,255,255,0.1);}
    .hero-stat b{font-size:32px;display:block;margin-bottom:5px;}
    .hero-stat small{color:#94a3b8;font-size:14px;}

    /* 模块通用 */
    section{padding:80px 0;position:relative;}
    .section-head{max-width:700px;margin:0 auto 40px;text-align:center;}
    .section-head h2{margin:0 0 12px;font-size:clamp(1.75rem, 4vw, 2.5rem);position:relative;display:inline-block;}
    .section-head h2:after{
      content:'';
      position:absolute;
      bottom:-8px;
      left:50%;
      transform:translateX(-50%);
      width:60px;
      height:4px;
      background:var(--brand-gradient);
      border-radius:2px;
    }
    .section-desc{color:var(--muted);font-size:16px;line-height:1.6;max-width:600px;margin:0 auto;}

    /* 公司福利 */
    .benefits{background:var(--card);}
    .benefits-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(280px, 1fr));gap:24px;margin-top:30px;}
    .benefit-item{background:var(--bg-light);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);transition: var(--transition);display:flex;flex-direction:column;align-items:center;text-align:center;}
    .benefit-item:hover{transform: translateY(-8px);box-shadow:var(--shadow-hover);}
    .benefit-icon{width:60px;height:60px;border-radius:12px;background:var(--brand-gradient);display:flex;align-items:center;justify-content:center;color:white;font-size:24px;margin-bottom:20px;}
    .benefit-item h3{margin:0 0 12px;font-size:20px;}
    .benefit-item p{margin:0;color:var(--muted);font-size:15px;line-height:1.6;}

    /* 热门职位 */
    .jobs{background:var(--bg-light);}
    .job-filters{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:30px;}
    .filter-btn{padding:8px 18px;border-radius:999px;border:1px solid var(--border);background:var(--card);color:var(--ink);font-size:14px;cursor:pointer;transition:var(--transition);}
    .filter-btn.active{background:var(--brand-primary);color:white;border-color:var(--brand-primary);}
    .filter-btn:hover:not(.active){border-color:var(--brand-primary);color:var(--brand-primary);}
    .jobs-list{display:grid;grid-template-columns:repeat(auto-fill, minmax(350px, 1fr));gap:24px;margin-top:20px;}
    .job-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:var(--transition);display:flex;flex-direction:column;}
    .job-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:transparent;}
    .job-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:15px;}
    .job-title{margin:0 0 5px;font-size:20px;}
    .job-department{color:var(--muted);font-size:14px;margin-bottom:10px;}
    .job-salary{background:#f0f9ff;color:#0ea5e9;padding:4px 10px;border-radius:6px;font-weight:500;font-size:15px;}
    .job-meta{display:flex;flex-wrap:wrap;gap:10px 20px;margin-bottom:20px;}
    .job-meta-item{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:14px;}
    .job-meta-item i{color:var(--brand-primary);}
    .job-desc{color:var(--ink);font-size:15px;line-height:1.6;margin:0 0 20px;flex-grow:1;}
    .job-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px;}
    .job-tag{background:#f1f5f9;color:var(--muted);padding:3px 10px;border-radius:6px;font-size:13px;}
    .job-actions{display:flex;justify-content:space-between;align-items:center;}
    .apply-btn{background:var(--accent);color:white;padding:10px 20px;border-radius:8px;font-weight:500;transition:var(--transition);}
    .apply-btn:hover{background:var(--accent-hover);}
    .view-details{color:var(--brand-primary);font-weight:500;font-size:14px;display:flex;align-items:center;gap:5px;}
    .view-details i{transition:var(--transition);}
    .job-card:hover .view-details i{transform:translateX(3px);}

    /* 招聘流程 */
    .process{background:var(--card);}
    .process-steps{display:flex;flex-wrap:wrap;justify-content:center;position:relative;margin-top:40px;}
    .process-steps:before{
      content:'';
      position:absolute;
      top:35px;
      left:50px;
      right:50px;
      height:3px;
      background:var(--brand-gradient);
      z-index:1;
    }
    .step{flex:0 0 180px;margin:0 10px 30px;position:relative;z-index:2;text-align:center;}
    .step-number{width:70px;height:70px;border-radius:50%;background:var(--brand-gradient);color:white;font-size:24px;font-weight:bold;display:flex;align-items:center;justify-content:center;margin:0 auto 15px;box-shadow:var(--shadow);}
    .step-title{font-weight:600;margin:0 0 8px;}
    .step-desc{color:var(--muted);font-size:14px;margin:0;}

    /* 常见问题 */
    .faq{background:var(--bg-light);}
    .faq-container{max-width:800px;margin:0 auto;}
    .faq-item{margin-bottom:16px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
    .faq-question{background:var(--card);padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:500;transition:var(--transition);}
    .faq-question:hover{background:var(--bg-light);}
    .faq-question i{color:var(--brand-primary);transition:var(--transition);}
    .faq-answer{background:var(--card);padding:0 24px;max-height:0;overflow:hidden;transition:all 0.3s ease;}
    .faq-answer p{margin:0;padding:18px 0;color:var(--muted);line-height:1.6;}
    .faq-item.active .faq-answer{max-height:500px;padding:18px 24px;}
    .faq-item.active .faq-question i{transform:rotate(180deg);}

    /* 底部 */
    footer{background:var(--bg-dark);color:#e2e8f0;padding:80px 0 40px;position:relative;}
    footer:before{
      content:'';
      position:absolute;
      top:0;
      left:0;
      width:100%;
      height:8px;
      background:var(--brand-gradient);
    }
    .foot{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;}
    .foot-col h4{margin:0 0 20px;font-size:18px;color:white;position:relative;display:inline-block;}
    .foot-col h4:after{
      content:'';
      position:absolute;
      bottom:-6px;
      left:0;
      width:30px;
      height:2px;
      background:var(--accent);
    }
    .foot-col p{margin:0 0 16px;line-height:1.7;color:#94a3b8;}
    .contact-info{display:flex;align-items:center;gap:12px;margin-bottom:16px;color:#94a3b8;}
    .contact-info i{color:var(--accent);width:20px;text-align:center;}
    .social-links{display:flex;gap:12px;margin-top:20px;}
    .social-links a{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,0.1);display:flex;align-items:center;justify-content:center;color:white;transition:var(--transition);}
    .social-links a:hover{background:var(--accent);transform: translateY(-3px);}
    .foot-nav{display:flex;flex-wrap:wrap;gap:10px 20px;}
    .foot-nav a{color:#94a3b8;transition:var(--transition);}
    .foot-nav a:hover{color:white;}
    .copyright{margin-top:40px;border-top:1px solid rgba(255,255,255,.1);padding-top:24px;color:#94a3b8;font-size:14px;text-align:center;}

    /* 响应式 */
    @media (max-width: 1100px){
      .foot{grid-template-columns:1fr 1fr;}
    }
    @media (max-width: 768px){
      nav ul{display:none}
      .hero-stats{grid-template-columns:1fr 1fr;}
      .jobs-list{grid-template-columns:1fr;}
      .process-steps:before{display:none;}
      .step{flex:0 0 100%;max-width:250px;margin:0 auto 30px;}
      .foot{grid-template-columns:1fr;}
      section{padding:60px 0;}
    }
    @media (max-width: 480px){
      .hero-stats{grid-template-columns:1fr;}
      .benefits-grid{grid-template-columns:1fr;}
      .job-filters{justify-content:flex-start;overflow-x:auto;padding-bottom:10px;}
      .job-filters::-webkit-scrollbar{display:none;}
    }