/*=== 变量 ===*/
:root{--pri:#1a56db;--pri2:#1e40af;--pri3:#3b82f6;--pri4:#93c5fd;--pri5:#bfdbfe;--acc:#dc2626;--g1:#0f172a;--g2:#1e293b;--g3:#e2e8f0;--g4:#f1f5f9;--g5:#f8fafc;--wh:#fff;--bw:#94a3b8;--tx:#334155;--sh:0 1px 3px rgba(0,0,0,.08);--sh2:0 4px 24px rgba(0,0,0,.08);--rl:12px;--rl2:20px;--tr:all .25s ease}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans SC",sans-serif;color:var(--tx);line-height:1.65;background:var(--g5);overflow-x:hidden}

/*=== 动画 ===*/
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes scaleIn{from{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-18px)}}
@keyframes floatSlow{0%,100%{transform:translateY(0) rotate(0deg)}50%{transform:translateY(-10px) rotate(3deg)}}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(59,130,246,.35)}50%{box-shadow:0 0 0 14px rgba(59,130,246,0)}}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.vis{opacity:1;transform:translateY(0)}
.delay-1{transition-delay:.08s}.delay-2{transition-delay:.16s}.delay-3{transition-delay:.24s}
.delay-4{transition-delay:.32s}.delay-5{transition-delay:.40s}.delay-6{transition-delay:.48s}

/*=== Header ===*/
.hd{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(255,255,255,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--g3);transition:var(--tr)}
.hd.shd{box-shadow:0 2px 20px rgba(0,0,0,.08)}
.hd-in{max-width:1140px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:60px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--g1);font-weight:700;font-size:18px}
.logo-ic{display:none}
.logo-img{height:26px;width:auto}
.nav{display:flex;gap:4px}
.nav a{padding:6px 14px;border-radius:8px;text-decoration:none;color:var(--tx);font-size:14px;font-weight:500;transition:var(--tr)}
.nav a:hover{background:var(--g4);color:var(--pri)}
.nav a.ac{background:var(--pri5);color:var(--pri);font-weight:600}



.hd-act{display:flex;gap:8px}

/*=== Buttons ===*/
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;cursor:pointer;font-size:14px;font-weight:600;border-radius:8px;text-decoration:none;transition:var(--tr);white-space:nowrap;padding:11px 24px}
.btn-sm{padding:6px 16px;font-size:13px}
.btn-lg{padding:14px 32px;font-size:16px;border-radius:12px}
.btn-pri{background:linear-gradient(135deg,var(--pri),var(--pri3));color:var(--wh);box-shadow:0 2px 12px rgba(26,86,219,.35)}
.btn-pri:hover{transform:translateY(-1px);box-shadow:0 4px 20px rgba(26,86,219,.45)}
.btn-out{background:var(--wh);color:var(--pri);border:1.5px solid var(--pri3)}
.btn-out:hover{background:var(--pri5)}
.btn-gh{background:transparent;color:var(--tx);border:1px solid var(--g3)}
.btn-gh:hover{background:var(--g4);border-color:var(--bw)}

/*=== Hero ===*/
.hero{position:relative;min-height:520px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:linear-gradient(160deg,#0b1120 0%,#1e3a8a 60%,#1e40af 100%);padding:100px 20px 80px;text-align:center}
.hero-c{position:relative;z-index:2;max-width:720px}
.hero-badge{display:inline-block;padding:5px 16px;border-radius:20px;background:rgba(255,255,255,.12);color:var(--pri4);font-size:13px;font-weight:600;margin-bottom:14px;backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.1)}
.hero h1{font-size:42px;font-weight:800;color:var(--wh);line-height:1.2;margin-bottom:16px}
.hero h1 em{font-style:normal;background:linear-gradient(135deg,#93c5fd,#c4b5fd);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero p{font-size:16px;color:rgba(255,255,255,.6);line-height:1.7;margin-bottom:28px}
.hero-acts{display:flex;gap:12px;justify-content:center;margin-bottom:36px;flex-wrap:wrap}
.hero-nums{display:flex;gap:36px;justify-content:center;flex-wrap:wrap}
.hero-num{text-align:center}
.hero-num b{font-size:28px;font-weight:800;color:var(--wh);display:block}
.hero-num span{font-size:13px;color:rgba(255,255,255,.4)}

/*=== Floating elements ===*/
.orb{position:absolute;border-radius:50%;pointer-events:none;opacity:.12;filter:blur(60px)}
.orb-1{width:300px;height:300px;background:#3b82f6;top:10%;left:-5%;animation:float 8s ease-in-out infinite}
.orb-2{width:200px;height:200px;background:#8b5cf6;top:60%;right:-3%;animation:float 10s ease-in-out 2s infinite}
.orb-3{width:160px;height:160px;background:#06b6d4;bottom:5%;left:30%;animation:floatSlow 7s ease-in-out 4s infinite}
.shape{position:absolute;pointer-events:none;opacity:.06;border:2px solid rgba(255,255,255,.5)}
.shape-1{width:80px;height:80px;border-radius:20px;top:15%;right:15%;transform:rotate(45deg);animation:floatSlow 9s ease-in-out 1s infinite}
.shape-2{width:50px;height:50px;border-radius:50%;top:70%;left:8%;animation:float 7s ease-in-out 3s infinite}
.shape-3{width:40px;height:40px;border-radius:8px;top:25%;left:40%;transform:rotate(30deg);animation:floatSlow 11s ease-in-out 5s infinite}
.shape-4{width:60px;height:60px;border-radius:12px;bottom:15%;right:25%;transform:rotate(-20deg);animation:float 8s ease-in-out 2s infinite}
.shape-5{width:36px;height:36px;border-radius:6px;top:50%;left:55%;transform:rotate(60deg);animation:floatSlow 12s ease-in-out 6s infinite}

/*=== Sections ===*/
.sec{padding:72px 20px}
.sec-g{background:var(--g5)}
.sec-in{max-width:1140px;margin:0 auto}
.sec-hd{text-align:center;margin-bottom:48px}
.sec-hd h2{font-size:28px;font-weight:800;color:var(--g1);margin-bottom:8px}
.sec-hd p{color:var(--bw);font-size:15px}

/*=== Page hero ===*/
.phero{padding:90px 20px 36px;text-align:center;background:linear-gradient(160deg,#0b1120,#1e3a8a);color:var(--wh)}
.phero h1{font-size:32px;font-weight:800;margin-bottom:6px}

/*=== Service cards ===*/
.sv-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px}
.sv-card{background:var(--wh);border:1px solid var(--g3);border-radius:var(--rl2);padding:28px;transition:var(--tr);position:relative;overflow:hidden}
.sv-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:var(--pri4)}
.sv-icon-wrap{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;flex-shrink:0}
.sv-icon-wrap svg{width:24px;height:24px}
.sv-c1{background:#eff6ff;color:var(--pri)}.sv-c2{background:#f0fdf4;color:#16a34a}
.sv-c3{background:#fef2f2;color:var(--acc)}.sv-c4{background:#faf5ff;color:#8b5cf6}
.sv-c5{background:#ecfeff;color:#06b6d4}.sv-c6{background:#fff7ed;color:#ea580c}
.sv-card h3{font-size:17px;font-weight:700;color:var(--g1);margin-bottom:10px}
.sv-card p{font-size:14px;color:var(--bw);line-height:1.6}

/*=== Service page item ===*/
.sv-pg-item{display:flex;gap:24px;align-items:flex-start;padding:28px;background:var(--wh);border:1px solid var(--g3);border-radius:var(--rl2);margin-bottom:16px;transition:var(--tr)}
.sv-pg-item:hover{border-color:var(--pri4);box-shadow:var(--sh)}
.sv-pg-item h3{font-size:18px;font-weight:700;color:var(--g1);margin-bottom:6px}
.sv-pg-item p{font-size:14px;color:var(--bw);line-height:1.6}

/*=== News cards ===*/
.nw-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:20px}
.nw-card{background:var(--wh);border:1px solid var(--g3);border-radius:var(--rl2);overflow:hidden;text-decoration:none;color:inherit;transition:var(--tr);display:flex}
.nw-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:var(--pri4)}
.nw-img{width:160px;min-height:140px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eff6ff,#f1f5f9);flex-shrink:0}
.nw-img img{width:100%;height:100%;object-fit:cover}
.nw-body{flex:1;padding:18px 20px;display:flex;flex-direction:column}
.nw-tag{font-size:11px;font-weight:700;color:var(--pri);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px}
.nw-body h3{font-size:16px;font-weight:700;color:var(--g1);margin-bottom:6px;line-height:1.3}
.nw-body p{font-size:13px;color:var(--bw);line-height:1.5;flex:1}
.nw-meta{font-size:12px;color:var(--bw);margin-top:10px}

/*=== About ===*/
.ab-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.ab-visual{display:flex;align-items:center;justify-content:center}
.ab-visual svg{max-width:260px}
.ab-txt h2{font-size:28px;font-weight:800;color:var(--g1);margin-bottom:16px}
.ab-txt p{font-size:15px;color:var(--bw);line-height:1.7;margin-bottom:12px}
.ab-feats{display:flex;gap:28px;margin-top:20px;flex-wrap:wrap}
.ab-feat{text-align:center}
.ab-feat b{display:block;font-size:28px;font-weight:800;color:var(--pri)}
.ab-feat span{font-size:13px;color:var(--bw)}

/*=== Contact ===*/
.ct-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.ct-info{display:flex;flex-direction:column;gap:20px}
.ct-item{display:flex;gap:16px;align-items:center;padding:20px;background:var(--wh);border:1px solid var(--g3);border-radius:var(--rl2);transition:var(--tr)}
.ct-item:hover{border-color:var(--pri4)}
.ct-ic-wrap{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.ct-txt h4{font-size:13px;color:var(--bw);font-weight:600;margin-bottom:2px}
.ct-txt p{font-size:15px;font-weight:500;color:var(--g1)}
.ct-form{background:var(--wh);border:1px solid var(--g3);border-radius:var(--rl2);padding:28px}
.ct-form h3{font-size:18px;font-weight:700;color:var(--g1);margin-bottom:18px}

/*=== Auth ===*/
.auth-wrap{display:flex;align-items:center;justify-content:center;min-height:calc(100vh - 60px);padding:80px 20px 40px;background:linear-gradient(160deg,#0b1120,#1e3a8a)}
.auth-card{background:var(--wh);border-radius:var(--rl2);padding:36px;width:100%;max-width:400px;box-shadow:0 8px 40px rgba(0,0,0,.15)}
.auth-card h2{font-size:24px;font-weight:800;color:var(--g1);margin-bottom:4px}
.auth-card .sub{color:var(--bw);font-size:14px;margin-bottom:24px}
.auth-ft{text-align:center;margin-top:20px;font-size:13px;color:var(--bw)}
.auth-ft a{color:var(--pri);font-weight:600}

/*=== Forms ===*/
.fg{margin-bottom:16px}
.fg label{display:block;font-size:13px;font-weight:600;color:var(--g2);margin-bottom:5px}
.fg input,.fg textarea{width:100%;padding:10px 14px;border:1.5px solid var(--g3);border-radius:8px;font-size:14px;color:var(--g1);transition:var(--tr);outline:none;font-family:inherit;background:var(--g5)}
.fg input:focus,.fg textarea:focus{border-color:var(--pri3);box-shadow:0 0 0 3px rgba(59,130,246,.1)}
.fg textarea{min-height:100px;resize:vertical}

/*=== Content section ===*/
.cont-sec{padding:40px 20px 64px}
.cont-in{max-width:860px;margin:0 auto;background:var(--wh);border:1px solid var(--g3);border-radius:var(--rl2);padding:32px}
.cont-in h3{font-size:18px;font-weight:700;color:var(--g1);margin-bottom:10px}
.cont-in p,.cont-in div{font-size:15px;line-height:1.75;color:var(--tx);white-space:pre-line}

/*=== Jobs ===*/
.jb-list{display:flex;flex-direction:column;gap:12px}
.jb-card{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;background:var(--wh);border:1px solid var(--g3);border-radius:var(--rl2);text-decoration:none;color:inherit;transition:var(--tr)}
.jb-card:hover{border-color:var(--pri4);box-shadow:var(--sh);transform:translateX(3px)}
.jb-card h3{font-size:16px;font-weight:700;color:var(--g1);margin-bottom:4px}
.jb-tags{display:flex;gap:8px;flex-wrap:wrap}
.jb-tags span{font-size:12px;padding:2px 10px;border-radius:6px;background:var(--g4);color:var(--bw)}
.salary{font-size:16px;font-weight:700;color:var(--acc)}
.jb-dh{margin-bottom:20px}
.jb-meta{display:flex;gap:8px;flex-wrap:wrap}
.jb-meta span{font-size:12px;padding:3px 12px;border-radius:6px;background:var(--g4);color:var(--bw)}
.jb-db h3{font-size:18px;font-weight:700;color:var(--g1);margin-bottom:10px}

/*=== Files ===*/
.fl-list{display:flex;flex-direction:column;gap:10px}
.fl-item{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:var(--wh);border:1px solid var(--g3);border-radius:var(--rl2);transition:var(--tr)}
.fl-item:hover{border-color:var(--pri4);box-shadow:var(--sh)}
.fl-info{display:flex;align-items:center;gap:14px}
.fl-name{font-size:15px;font-weight:600;color:var(--g1)}
.fl-size{font-size:12px;color:var(--bw);margin-top:2px}

/*=== Empty state ===*/
.empty{text-align:center;padding:48px 20px}
.empty .icon{margin-bottom:12px}
.empty p{color:var(--bw);font-size:15px}

/*=== Footer ===*/
.ft{background:var(--g2);color:var(--wh);padding:48px 20px 28px}
.ft-in{max-width:1140px;margin:0 auto}
.ft-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;margin-bottom:28px}
.ft-brand h3{font-size:18px;font-weight:700;margin-bottom:10px}
.ft-brand p{font-size:13px;color:rgba(255,255,255,.5);line-height:1.6}
.ft-col h4{font-size:14px;font-weight:700;margin-bottom:12px}
.ft-col ul{list-style:none}
.ft-col ul li{margin-bottom:8px}
.ft-col ul li,.ft-col ul li a{font-size:13px;color:rgba(255,255,255,.5);text-decoration:none;transition:var(--tr)}
.ft-col ul li a:hover{color:var(--wh)}
.ft-bot{text-align:center;font-size:12px;color:rgba(255,255,255,.3);padding-top:24px;border-top:1px solid rgba(255,255,255,.08)}

/*=== Alert ===*/
.alert{padding:10px 16px;border-radius:8px;font-size:13px;font-weight:500;margin-bottom:8px}
.alert-success{background:#f0fdf4;color:#16a34a;border:1px solid #bbf7d0}
.alert-danger{background:#fef2f2;color:var(--acc);border:1px solid #fecaca}
.alert-info{background:#eff6ff;color:var(--pri);border:1px solid var(--pri4)}

/*=== Responsive ===*/
@media(max-width:900px){
  .nav{gap:2px}
  .nav a{padding:5px 8px;font-size:13px}
  .hd-in{padding:0 10px}
  .logo-img{height:28px}
  .hd-act .btn{padding:4px 10px;font-size:12px}
  .hero h1{font-size:32px}
  .sv-grid,.nw-grid{grid-template-columns:1fr}
  .ab-grid,.ct-grid{grid-template-columns:1fr;gap:32px}
  .ft-grid{grid-template-columns:1fr 1fr;gap:28px}
  .nw-card{flex-direction:column}
  .nw-img{width:100%;min-height:180px}
}
@media(max-width:600px){
  .hero h1{font-size:26px}
  .hero-nums{gap:20px}
  .hero-num b{font-size:22px}
  .sec{padding:48px 16px}
  .ft-grid{grid-template-columns:1fr}
  .jb-card{flex-direction:column;align-items:flex-start;gap:10px}
}