:root{
  --bg1:#eef8ff; --bg2:#f7f4ff; --card:rgba(255,255,255,.82); --line:rgba(116,201,234,.18);
  --text:#445a70; --text-soft:#7c8ea1; --primary:#74c9ea; --primary-deep:#4aa8d1; --secondary:#c9b7ff;
  --shadow:0 18px 40px rgba(116,201,234,.14); --max-width:1180px;
}
:root[data-theme="dream"]{
  --bg1:#f3eeff; --bg2:#eef7ff; --card:rgba(255,255,255,.86); --line:rgba(201,183,255,.22);
  --text:#5a5476; --text-soft:#8c87a5; --primary:#b39cff; --primary-deep:#8e79f0; --secondary:#7dd7ff;
}
:root[data-theme="dark"]{
  --bg1:#111723; --bg2:#1a2232; --card:rgba(19,28,43,.82); --line:rgba(125,171,255,.14);
  --text:#d8e2f0; --text-soft:#8ea1bb; --primary:#6eaefc; --primary-deep:#4f90ea; --secondary:#9e86ff;
  --shadow:0 18px 40px rgba(10,16,28,.28);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at 12% 14%, rgba(116,201,234,.18), transparent 18%),
    radial-gradient(circle at 84% 10%, rgba(201,183,255,.20), transparent 20%),
    linear-gradient(135deg,var(--bg1),var(--bg2));
  min-height:100vh; overflow-x:hidden; transition:.25s ease;
}
body::before,body::after{
  content:""; position:fixed; width:320px; height:320px; border-radius:50%;
  filter:blur(70px); pointer-events:none; z-index:-1; opacity:.45; animation:float 10s ease-in-out infinite;
}
body::before{top:40px; left:-120px; background:rgba(116,201,234,.22)}
body::after{right:-120px; bottom:40px; background:rgba(201,183,255,.24); animation-delay:-5s}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.container{width:min(var(--max-width), calc(100% - 28px)); margin:0 auto}
.glass{background:var(--card); backdrop-filter:blur(14px); border:1px solid rgba(255,255,255,.86); box-shadow:var(--shadow)}
.nav-wrap{position:sticky; top:14px; z-index:40; padding-top:14px}
.nav{
  width:min(var(--max-width), calc(100% - 28px)); margin:0 auto; border-radius:999px; padding:14px 18px;
  display:flex; justify-content:space-between; align-items:center; gap:16px;
}
.brand{display:flex; align-items:center; gap:12px; font-weight:700; font-size:18px}
.brand-badge{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;color:#fff;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
}
.nav-links{display:flex; gap:8px; flex-wrap:wrap; align-items:center}
.nav-links a,.nav-links button{
  border:none;background:transparent;color:var(--text-soft);padding:10px 14px;border-radius:999px;cursor:pointer;font-size:14px
}
.nav-links a:hover,.nav-links button:hover{background:rgba(255,255,255,.18);color:var(--primary-deep)}
.theme-switcher{display:flex; gap:8px; flex-wrap:wrap}
.theme-chip{
  font-size:12px;padding:8px 12px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.14);cursor:pointer;color:var(--text-soft)
}
.theme-chip.active{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;border-color:transparent}
.hero{padding:40px 0 0}
.hero-card{
  display:grid;grid-template-columns:1.1fr .9fr;gap:24px;padding:34px;border-radius:34px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;color:var(--primary-deep);
  background:rgba(255,255,255,.18);border:1px solid var(--line);font-size:13px;margin-bottom:16px
}
.hero h1{font-size:clamp(42px,7vw,72px);line-height:1.06;margin-bottom:12px}
.hero .lead{color:var(--text-soft);font-size:clamp(16px,2.1vw,20px);line-height:1.95;margin-bottom:22px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{
  border:none;border-radius:999px;padding:14px 22px;cursor:pointer;font-size:15px;font-weight:600;transition:.22s ease
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-deep))}
.btn-secondary{color:var(--primary-deep);background:rgba(255,255,255,.18);border:1px solid var(--line)}
.visual-card{
  width:min(100%,360px); aspect-ratio:1/1.12; border-radius:34px; padding:14px; margin:auto;
  background:linear-gradient(180deg, rgba(255,255,255,.95), rgba(255,255,255,.68));
  border:1px solid rgba(255,255,255,.86); overflow:hidden; transform:rotate(-4deg)
}
.visual-card img{width:100%;height:100%;object-fit:cover;border-radius:26px}
.notice{margin-top:16px;padding:14px 16px;border-radius:20px;color:var(--primary-deep);background:rgba(255,255,255,.18);border:1px solid var(--line);line-height:1.8}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:24px}
.stats-card{padding:18px;border-radius:22px}
.stats-card h3{font-size:30px;margin-bottom:6px}
.stats-card p{color:var(--text-soft);font-size:14px}
.section{padding-top:72px}
.section-title{display:flex;align-items:center;gap:12px;font-size:clamp(28px,4vw,40px);margin-bottom:10px}
.section-title::before{content:"";width:40px;height:12px;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--secondary))}
.section-desc{color:var(--text-soft);line-height:1.9;max-width:760px;margin-bottom:18px}
.grid-2{display:grid;grid-template-columns:.95fr 1.05fr;gap:18px}
.card{padding:20px;border-radius:24px}
.field{margin-top:14px}
.field label{display:block;margin-bottom:8px;font-size:13px;color:var(--text-soft)}
.input,.textarea,.select{
  width:100%;border:1px solid var(--line);border-radius:18px;padding:14px 15px;font-size:14px;outline:none;background:rgba(255,255,255,.16);color:var(--text)
}
.textarea{min-height:110px;resize:vertical;line-height:1.75}
.input:focus,.textarea:focus,.select:focus{border-color:var(--primary-deep);box-shadow:0 0 0 4px rgba(116,201,234,.1)}
.submit-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.ok{color:#2f9a6b;font-size:14px;margin-top:12px}
.err{color:#d85f7f;font-size:14px;margin-top:12px}
.list{display:grid;gap:14px}
.item{padding:18px;border-radius:22px}
.item h3{font-size:18px;margin-bottom:8px}
.item p{color:var(--text-soft);line-height:1.85}
.meta{color:var(--text-soft);font-size:12px}
.footer{padding:80px 0 40px}
.footer-card{text-align:center;padding:28px;border-radius:28px}
.footer-card p{color:var(--text-soft);line-height:1.9}
.opening{
  position:fixed; inset:0; display:flex; align-items:center; justify-content:center; z-index:999;
  background:linear-gradient(135deg,var(--bg1),var(--bg2)); transition:opacity .7s ease, visibility .7s ease
}
.opening.hide{opacity:0;visibility:hidden}
.opening-card{padding:28px 34px;border-radius:28px;text-align:center}
.opening-card h2{font-size:38px;margin-bottom:10px}
.opening-card p{color:var(--text-soft);line-height:1.8}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@media (max-width:980px){.hero-card,.stats-grid,.grid-2{grid-template-columns:1fr}}
@media (max-width:720px){
  .nav{border-radius:26px;align-items:flex-start}
  .nav-links{justify-content:flex-start}
  .btn{width:100%}
  .submit-row,.hero-actions{width:100%}
  .visual-card{transform:none}
}