:root{
  --bg:#0b1020;
  --card:#111a33;
  --text:#e9ecf6;
  --muted:#b6bdd6;
  --brand:#ffb100;
  --accent:#4da3ff;
  --ok:#26c281;
  --danger:#ff5c5c;
  --border:rgba(255,255,255,.12);
  --shadow:0 14px 40px rgba(0,0,0,.35);
  --radius:18px;
  --max:1120px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","Noto Sans CJK SC","Noto Sans SC","Microsoft YaHei",Arial,sans-serif;
  color:var(--text);
  background:radial-gradient(1200px 600px at 20% -10%, rgba(77,163,255,.18), transparent 60%),
             radial-gradient(900px 500px at 90% 0%, rgba(255,177,0,.16), transparent 55%),
             linear-gradient(180deg, #060914, #0b1020 40%, #060914);
  line-height:1.6;
}

a{color:inherit;text-decoration:none}
.container{max-width:var(--max);margin:0 auto;padding:0 18px}
.sr-only{
  position:absolute;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}

.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(6,9,20,.72);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:14px}
.brand{display:flex;align-items:center;gap:10px}
.brand-badge{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg, rgba(255,177,0,.95), rgba(77,163,255,.95));
  box-shadow:0 10px 28px rgba(0,0,0,.35);
}
.brand-logo{
  width:34px;height:34px;border-radius:10px;
  object-fit:contain;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 10px 28px rgba(0,0,0,.35);
  padding:5px;
}
.brand-title{font-weight:800;letter-spacing:.5px}
.brand-sub{font-size:12px;color:var(--muted);margin-top:-2px}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:12px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.03);
  color:var(--text);
}
.nav-toggle:hover{background:rgba(255,255,255,.06)}
.nav-toggle .hamburger{
  display:block;
  width:20px;
  height:2px;
  background:currentColor;
  position:relative;
}
.nav-toggle .hamburger:before,
.nav-toggle .hamburger:after{
  content:"";
  position:absolute;
  left:0;
  width:20px;
  height:2px;
  background:currentColor;
  transition:transform .2s;
}
.nav-toggle .hamburger:before{top:-6px}
.nav-toggle .hamburger:after{top:6px}
.nav-links{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}
.nav-links a{
  font-size:14px;color:var(--muted);
  padding:8px 10px;border-radius:12px;
  border:1px solid transparent;
  transition:all .2s;
}
.nav-links a:hover{color:var(--text);border-color:var(--border);background:rgba(255,255,255,.03)}
.nav-links .cta-link{
  background:linear-gradient(135deg, rgba(255,177,0,.15), rgba(77,163,255,.10));
  border-color:rgba(255,177,0,.35);
  color:var(--brand);
  font-weight:650;
}
.nav-links .cta-link:hover{
  background:linear-gradient(135deg, rgba(255,177,0,.25), rgba(77,163,255,.15));
  border-color:rgba(255,177,0,.6);
}

.hero{padding:54px 0 20px}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:stretch}
.hero-card{
  border:1px solid var(--border);
  background:linear-gradient(180deg, rgba(17,26,51,.86), rgba(17,26,51,.68));
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:26px;
  position:relative;
  overflow:hidden;
}
.hero-card:before{
  content:"";
  position:absolute;inset:-60px -60px auto auto;
  width:220px;height:220px;
  background:radial-gradient(circle at 30% 30%, rgba(255,177,0,.38), transparent 60%);
  transform:rotate(10deg);
}
.hero h1{margin:0 0 10px;font-size:34px;line-height:1.25}
.hero-desc{margin:0 0 16px;color:var(--muted);font-size:15px}
.hero p{margin:0 0 16px;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 0}
.chip{
  font-size:12px;color:rgba(233,236,246,.92);
  border:1px solid var(--border);
  background:rgba(255,255,255,.03);
  padding:6px 10px;border-radius:999px;
}
.cta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 14px;border-radius:14px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.03);
  color:var(--text);
  font-weight:650;
  cursor:pointer;
  transition:all .2s;
}
.btn:hover{background:rgba(255,255,255,.06)}
.btn-primary{
  border-color:rgba(255,177,0,.45);
  background:linear-gradient(135deg, rgba(255,177,0,.18), rgba(77,163,255,.10));
}
.btn-primary:hover{border-color:rgba(255,177,0,.7)}
.btn-outline{color:var(--muted)}
.btn-outline:hover{color:var(--text)}
.btn-sm{padding:6px 10px;font-size:13px;border-radius:10px}

.side-stack{display:flex;flex-direction:column;gap:18px}
.mini-card{
  border:1px solid var(--border);
  background:rgba(17,26,51,.72);
  border-radius:var(--radius);
  padding:18px;
}
.mini-title{font-weight:800;margin:0 0 8px;display:flex;align-items:center;gap:8px}
.mini-desc{margin:0;color:var(--muted);font-size:14px}
.mini-trust{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:10px;
  padding:14px 18px;
  background:linear-gradient(135deg, rgba(255,177,0,.08), rgba(77,163,255,.06));
  border-color:rgba(255,177,0,.25);
}
.trust-item{
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  gap:4px;
}
.trust-num{
  font-size:22px;
  font-weight:800;
  color:var(--brand);
  line-height:1;
}
.trust-label{
  font-size:11px;
  color:var(--muted);
}
.mini-list{margin:10px 0 0;padding:0;list-style:none;display:grid;gap:10px}
.mini-list li{display:flex;gap:10px;align-items:flex-start;color:var(--muted);font-size:14px}
.dot{width:10px;height:10px;border-radius:50%;margin-top:6px;background:rgba(77,163,255,.85)}
.dot.ok{background:rgba(38,194,129,.9)}
.dot.brand{background:rgba(255,177,0,.92)}

.section{padding:26px 0}
.section h2{margin:0 0 12px;font-size:22px}
.section p{margin:0;color:var(--muted)}
.section-desc{
  font-size:15px;
  margin-bottom:18px !important;
}

/* 校园卡片增强 */
.campus-card{
  position:relative;
  transition:transform .2s,box-shadow .2s;
}
.campus-card:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 30px rgba(0,0,0,.25);
}
.card-badge{
  position:absolute;
  top:12px;
  right:12px;
  background:linear-gradient(135deg, var(--brand), rgba(255,177,0,.7));
  color:#000;
  font-size:11px;
  font-weight:700;
  padding:4px 8px;
  border-radius:999px;
}
.card address{
  display:inline;
  font-style:normal;
}
.card time{
  color:var(--muted);
}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}
.card{
  border:1px solid var(--border);
  background:rgba(17,26,51,.62);
  border-radius:var(--radius);
  padding:18px;
}
.card h3{margin:0 0 10px;font-size:18px;display:flex;align-items:center;gap:8px}
.card h3 svg{flex-shrink:0}

/* 服务卡片 */
.service-card{
  text-align:center;
  transition:transform .2s,border-color .2s;
}
.service-card:hover{
  transform:translateY(-3px);
  border-color:rgba(255,177,0,.35);
}
.service-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:64px;
  height:64px;
  border-radius:16px;
  background:linear-gradient(135deg, rgba(255,177,0,.15), rgba(77,163,255,.10));
  color:var(--brand);
  margin-bottom:14px;
}
.feature-list{
  list-style:none;
  padding:0;
  margin:14px 0;
  display:flex;
  flex-direction:column;
  gap:8px;
  text-align:left;
}
.feature-list li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--muted);
}
.feature-list li svg{
  color:var(--ok);
  flex-shrink:0;
}

/* 导航卡片 */
.nav-card{
  text-align:center;
  transition:transform .2s,border-color .2s;
}
.nav-card:hover{
  transform:translateY(-3px);
  border-color:rgba(77,163,255,.35);
}
.card-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:56px;
  height:56px;
  margin:0 auto 12px;
  border-radius:14px;
  background:linear-gradient(135deg, rgba(77,163,255,.15), rgba(255,177,0,.10));
  color:var(--accent);
}

/* 信任卡片 */
.trust-card{
  text-align:center;
  transition:transform .2s,border-color .2s;
}
.trust-card:hover{
  transform:translateY(-3px);
  border-color:rgba(38,194,129,.35);
}
.trust-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:64px;
  height:64px;
  margin:0 auto 12px;
  border-radius:16px;
  background:linear-gradient(135deg, rgba(38,194,129,.15), rgba(77,163,255,.10));
  color:var(--ok);
}

/* 教师卡片 */
.teacher-card{
  position:relative;
  transition:transform .2s,border-color .2s;
}
.teacher-card:hover{
  transform:translateY(-3px);
  border-color:rgba(255,177,0,.35);
}
.teacher-badge{
  position:absolute;
  top:12px;
  right:12px;
  background:linear-gradient(135deg, var(--accent), rgba(77,163,255,.7));
  color:#fff;
  font-size:11px;
  font-weight:700;
  padding:4px 8px;
  border-radius:999px;
}

/* 流程卡片 */
.process-card{
  text-align:center;
  position:relative;
}
.process-step{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:48px;
  height:48px;
  border-radius:50%;
  background:linear-gradient(135deg, var(--brand), rgba(255,177,0,.7));
  color:#000;
  font-size:18px;
  font-weight:800;
  margin-bottom:12px;
}

/* 联系卡片 */
.contact-card h3{
  justify-content:center;
  text-align:center;
}
.contact-card .actions{
  justify-content:center;
}
.meta{font-size:13px;color:var(--muted);display:grid;gap:6px}
.meta strong{color:var(--text)}
.actions{margin-top:12px;display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;color:var(--muted);
  border:1px solid var(--border);
  background:rgba(255,255,255,.03);
  padding:6px 10px;border-radius:999px;
}

.split{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}
.faq{margin-top:10px;border-top:1px solid var(--border)}
.faq details{border-bottom:1px solid var(--border);padding:14px 0;transition:background-color .2s}
.faq details:hover{background:rgba(255,255,255,.02)}
.faq summary{
  cursor:pointer;
  font-weight:650;
  display:flex;
  align-items:center;
  gap:10px;
  list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary svg{
  color:var(--brand);
  flex-shrink:0;
}
.faq p{margin:8px 0 0;color:var(--muted);font-size:14px;padding-left:28px}

.note{
  border:1px dashed rgba(255,255,255,.22);
  background:rgba(255,255,255,.03);
  border-radius:var(--radius);
  padding:14px;
  color:var(--muted);
  font-size:13px;
}
.kpi{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.kpi .chip{border-color:rgba(77,163,255,.25)}

.img-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}
.figure{
  border:1px solid var(--border);
  background:rgba(17,26,51,.62);
  border-radius:var(--radius);
  overflow:hidden;
}
.figure img{width:100%;height:220px;object-fit:cover;display:block;background:rgba(255,255,255,.02)}
.figure figcaption{padding:12px 14px;color:var(--muted);font-size:13px}

.consult{
  position:fixed;
  right:18px;
  bottom:18px;
  z-index:80;
}
.consult-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 14px;
  border-radius:999px;
  border:1px solid rgba(255,177,0,.55);
  background:linear-gradient(135deg, rgba(255,177,0,.22), rgba(77,163,255,.12));
  color:rgba(233,236,246,.96);
  font-weight:750;
  box-shadow:0 18px 50px rgba(0,0,0,.45);
}
.consult-btn:hover{border-color:rgba(255,177,0,.8)}

.modal{
  position:fixed;
  inset:0;
  z-index:90;
  display:none;
  align-items:flex-end;
  justify-content:center;
  background:rgba(0,0,0,.45);
}
.modal.is-open{display:flex}
.modal-panel{
  width:min(720px, 100%);
  background:rgba(17,26,51,.96);
  border:1px solid var(--border);
  border-radius:22px 22px 0 0;
  box-shadow:0 18px 60px rgba(0,0,0,.55);
  padding:18px;
}
.modal-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.modal-title{font-weight:850}
.modal-close{
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.03);
  color:var(--text);
}
.modal-close:hover{background:rgba(255,255,255,.06)}
.modal-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
.modal-card{
  border:1px solid var(--border);
  background:rgba(255,255,255,.03);
  border-radius:16px;
  padding:14px;
}
.modal-card h3{margin:0 0 6px;font-size:16px}
.modal-card p{margin:0;color:var(--muted);font-size:13px}
.modal-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.modal-form{margin-top:14px}
.field{
  width:100%;
  padding:10px 12px;
  border-radius:14px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.03);
  color:var(--text);
  outline:none;
}
.field::placeholder{color:rgba(182,189,214,.7)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}

.footer{
  border-top:1px solid var(--border);
  padding:22px 0 40px;
  color:var(--muted);
  font-size:13px;
}
.footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:14px}
.footer a{color:var(--muted);text-decoration:underline}

.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 10px;border-radius:999px;
  border:1px solid rgba(255,177,0,.35);
  background:rgba(255,177,0,.08);
  color:rgba(233,236,246,.95);
  font-size:12px;
}

.muted{color:var(--muted)}

@media (max-width: 980px){
  .hero-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .img-grid{grid-template-columns:1fr}
  .nav-inner{flex-wrap:wrap}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-links{
    display:none;
    width:100%;
    justify-content:flex-start;
    flex-direction:column;
    padding:14px 0;
    gap:6px;
  }
  .nav-links a{padding:12px;border-radius:10px}
  .nav-links.is-open{display:flex}
  .footer-grid{grid-template-columns:1fr}
  .hero h1{font-size:26px}
  .hero-card{padding:20px}
  .modal-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .trust-item{gap:2px}
  .trust-num{font-size:18px}
  .trust-label{font-size:10px}
}

/* 跳过链接 - 无障碍访问 */
.sr-only:focus{
  position:static;
  width:auto;
  height:auto;
  padding:10px 16px;
  margin:0;
  overflow:visible;
  clip:auto;
  white-space:normal;
  background:var(--brand);
  color:#000;
  font-weight:700;
  z-index:100;
}

/* 减少动画 - 无障碍访问 */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
}

/* 打印样式 */
@media print{
  body{background:#fff;color:#000}
  .nav,.consult,.footer{display:none}
  a{color:#000;text-decoration:underline}
  .card{border:1px solid #000;box-shadow:none}
}