/* ============================================================
   爱博强猎头 - 全站样式（SEO/GEO 优化版）
   设计：信任蓝 +  Premium 金，移动优先响应式
   ============================================================ */
:root{
  --primary:#14366b;
  --primary-dark:#0d2447;
  --primary-light:#1f4f93;
  --accent:#e8a33d;
  --accent-dark:#cf8a23;
  --bg:#ffffff;
  --bg-alt:#f4f7fb;
  --bg-dark:#0d2447;
  --text:#1f2937;
  --text-light:#5b6776;
  --border:#e2e8f0;
  --shadow:0 6px 24px rgba(20,54,107,.08);
  --shadow-lg:0 12px 40px rgba(20,54,107,.14);
  --radius:14px;
  --maxw:1200px;
  --header-h:68px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--text);line-height:1.7;background:var(--bg);font-size:16px;
  overflow-x:hidden;-webkit-tap-highlight-color:transparent;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.btn{
  display:inline-block;padding:13px 30px;border-radius:50px;font-weight:600;
  background:var(--accent);color:#1a1a1a;transition:.25s;cursor:pointer;border:none;font-size:15px;
}
.btn:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-outline{background:transparent;border:2px solid #fff;color:#fff}
.btn-outline:hover{background:#fff;color:var(--primary)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-light);color:#fff}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid var(--border);transition:box-shadow .3s,background .3s;
}
.site-header.scrolled{box-shadow:var(--shadow);background:rgba(255,255,255,.97)}
.nav{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);gap:18px}
.logo{display:flex;align-items:center;gap:12px;min-width:0}
.logo .mark{
  width:42px;height:42px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;
  box-shadow:0 6px 16px rgba(20,54,107,.28);
}
.logo .word{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.logo .name{font-size:21px;font-weight:800;color:var(--primary);letter-spacing:.5px}
.logo small{font-size:11px;color:var(--text-light);font-weight:600;letter-spacing:1.5px;font-family:Georgia,"Times New Roman",serif}
.logo .tagline{font-size:12px;color:var(--text-light);font-weight:500;margin-left:14px;padding-left:14px;
  border-left:1px solid var(--border);white-space:nowrap;align-self:center}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  position:relative;padding:10px 15px;border-radius:8px;font-size:15px;font-weight:500;color:var(--text);
  transition:color .2s;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:15px;right:15px;bottom:5px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--accent),var(--accent-dark));
  transform:scaleX(0);transform-origin:center;opacity:0;transition:transform .25s,opacity .25s;
}
.nav-links a:hover{color:var(--primary)}
.nav-links a:hover::after{transform:scaleX(1);opacity:1}
.nav-links a.active{color:var(--primary)}
.nav-links a.active::after{transform:scaleX(1);opacity:1}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-phone{
  display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--primary);font-size:16px;
  white-space:nowrap;padding:8px 15px;border-radius:50px;background:var(--bg-alt);
  border:1px solid var(--border);transition:background .2s,box-shadow .2s;
}
.nav-phone:hover{background:#fff;box-shadow:var(--shadow)}
.nav-phone i{color:var(--accent);font-style:normal;font-size:15px}
.menu-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:9px;margin-left:4px}
.menu-toggle span{width:26px;height:3px;background:var(--primary);border-radius:3px;transition:.3s;transform-origin:center}
.menu-toggle.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.menu-toggle.active span:nth-child(2){opacity:0}
.menu-toggle.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(135deg,var(--primary-dark),var(--primary) 60%,var(--primary-light));
  color:#fff;padding:90px 0 80px;position:relative;overflow:hidden;
}
.hero::after{content:"";position:absolute;right:-10%;top:-20%;width:55%;height:140%;
  background:radial-gradient(circle,rgba(232,163,61,.25),transparent 60%);}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;position:relative;z-index:2}
.hero h1{font-size:clamp(28px,4.4vw,46px);line-height:1.25;margin-bottom:18px;font-weight:800}
.hero h1 .hl{color:var(--accent)}
.hero p{font-size:18px;color:#cfe0f5;margin-bottom:30px;max-width:560px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:26px;margin-top:38px;flex-wrap:wrap}
.hero-stats .s b{display:block;font-size:30px;color:var(--accent);font-weight:800}
.hero-stats .s span{font-size:13px;color:#bcd0ec}
.hero-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius);padding:28px;backdrop-filter:blur(6px)}
.hero-card h3{font-size:18px;margin-bottom:16px;color:#fff}
.hero-card .row{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.15);font-size:14px}
.hero-card .row span{color:#bcd0ec}
.hero-card .row b{color:#fff}

/* ---------- Sections ---------- */
.section{padding:74px 0}
.section.alt{background:var(--bg-alt)}
.section-head{text-align:center;max-width:760px;margin:0 auto 48px}
.section-head .eyebrow{color:var(--accent-dark);font-weight:700;letter-spacing:2px;font-size:13px;text-transform:uppercase}
.section-head h2{font-size:clamp(24px,3.2vw,36px);margin:10px 0 14px;color:var(--primary-dark);font-weight:800}
.section-head p{color:var(--text-light);font-size:17px}

.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:30px;
  transition:.25s;box-shadow:var(--shadow)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cdddf5}
.card .ic{width:54px;height:54px;border-radius:12px;background:var(--bg-alt);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800;margin-bottom:16px}
.card h3{font-size:19px;margin-bottom:10px;color:var(--primary-dark)}
.card p{color:var(--text-light);font-size:15px}

/* feature list */
.flist{display:grid;gap:14px}
.flist li{display:flex;gap:12px;align-items:flex-start;font-size:15px}
.flist li .ck{color:var(--accent);font-weight:800;flex:none;margin-top:2px}
.flist li b{color:var(--primary-dark)}

/* steps */
.steps{counter-reset:step}
.steps .step{position:relative;padding:26px 26px 26px 78px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);counter-increment:step}
.steps .step::before{content:counter(step);position:absolute;left:22px;top:24px;width:40px;height:40px;
  border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:18px}
.steps .step h4{color:var(--primary-dark);margin-bottom:6px;font-size:17px}
.steps .step p{color:var(--text-light);font-size:14px}

/* industries pills */
.pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.pills span{background:var(--bg-alt);border:1px solid var(--border);padding:8px 16px;border-radius:50px;
  font-size:14px;color:var(--primary-dark);font-weight:500}

/* office grid */
.office-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.office{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px 20px}
.office b{display:block;color:var(--primary-dark);font-size:16px;margin-bottom:6px}
.office span{font-size:14px;color:var(--text-light)}

/* cities */
.city-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
.city-grid a{display:block;text-align:center;padding:18px 10px;border:1px solid var(--border);border-radius:12px;
  font-weight:600;color:var(--primary-dark);transition:.2s;background:#fff}
.city-grid a:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-3px)}

/* CTA band */
.cta-band{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;border-radius:var(--radius);
  padding:46px;text-align:center;margin:0 0 74px}
.cta-band h2{font-size:30px;margin-bottom:12px}
.cta-band p{color:#cfe0f5;margin-bottom:24px;font-size:17px}

/* breadcrumb */
.breadcrumb{background:var(--bg-alt);padding:14px 0;font-size:14px;color:var(--text-light)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{margin:0 8px;color:#cbd5e1}

/* contact layout */
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info .item{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--border)}
.contact-info .item .ic{width:46px;height:46px;border-radius:11px;background:var(--bg-alt);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:20px;flex:none}
.contact-info .item b{display:block;color:var(--primary-dark);font-size:16px}
.contact-info .item span{color:var(--text-light);font-size:14px}
.form-box{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.form-box h3{color:var(--primary-dark);margin-bottom:18px;font-size:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:6px;color:var(--text)}
.field input,.field textarea,.field select{width:100%;padding:12px 14px;border:1px solid var(--border);
  border-radius:10px;font-size:16px;font-family:inherit;transition:.2s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(20,54,107,.1)}

/* FAQ */
.faq-item{border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden;background:#fff}
.faq-item summary{padding:18px 22px;cursor:pointer;font-weight:600;color:var(--primary-dark);
  list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;color:var(--accent);font-weight:700}
.faq-item[open] summary::after{content:"−"}
.faq-item .a{padding:0 22px 20px;color:var(--text-light);font-size:15px}

/* table */
.tbl{width:100%;border-collapse:collapse;margin-top:10px;font-size:15px}
.tbl th,.tbl td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--border)}
.tbl th{background:var(--bg-alt);color:var(--primary-dark);font-weight:700}
.tbl tr:hover td{background:#fafcff}

/* footer */
.site-footer{background:var(--bg-dark);color:#bcd0ec;padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px}
.site-footer h4{color:#fff;font-size:17px;margin-bottom:16px}
.site-footer a{color:#bcd0ec;font-size:14px;line-height:2}
.site-footer a:hover{color:var(--accent)}
.footer-contact p{font-size:14px;line-height:2}
.footer-contact b{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:20px;
  text-align:center;font-size:13px;color:#7e98bd}
.footer-bottom a{color:var(--accent)}

/* responsive */
@media(max-width:1180px){.container{max-width:100%}}

@media(max-width:980px){
  .logo .tagline{display:none}
  .hero-grid{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .contact-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  /* 折叠为汉堡菜单，避免导航溢出 */
  .nav-links{
    position:fixed;top:var(--header-h);left:0;right:0;background:#fff;flex-direction:column;
    align-items:stretch;gap:2px;padding:10px 16px 18px;box-shadow:var(--shadow-lg);
    transform:translateY(-130%);opacity:0;visibility:hidden;transition:.3s ease;z-index:99;
    border-bottom:1px solid var(--border);max-height:calc(100vh - var(--header-h));overflow-y:auto;
  }
  .nav-links.open{transform:translateY(0);opacity:1;visibility:visible}
  .nav-links a{padding:13px 14px;font-size:16px;border-radius:10px}
  .nav-links a::after{display:none}
  .nav-links a:hover{background:var(--bg-alt)}
  .menu-toggle{display:flex}
  .nav-phone{display:none}
}

@media(max-width:600px){
  :root{--header-h:60px}
  .nav{gap:12px}
  .logo .mark{width:38px;height:38px;font-size:18px}
  .logo .name{font-size:18px}
  .container{padding:0 16px}
  .hero{padding:60px 0 52px}
  .hero p{font-size:16px}
  .hero-stats{gap:18px}
  .hero-stats .s b{font-size:26px}
  .hero-card{padding:22px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:50px 0}
  .section-head{margin-bottom:34px}
  .cta-band{padding:30px 20px}
  .cta-band h2{font-size:24px}
  .office-grid{grid-template-columns:1fr}
  .city-grid{grid-template-columns:repeat(2,1fr)}
  .contact-wrap{gap:24px}
}

@media(max-width:380px){
  .logo .name{font-size:16px}
  .logo .mark{width:34px;height:34px;font-size:16px}
  .container{padding:0 14px}
  .city-grid{grid-template-columns:1fr 1fr}
}

/* 大屏（≥1600）整体居中放大，更大气 */
@media(min-width:1600px){
  :root{--maxw:1280px}
  .hero{padding:110px 0 96px}
}