:root{
  --bg:#0a0f1a;
  --panel:#0f1626;
  --glass:rgba(255,255,255,.06);
  --text:#e6eefc;
  --muted:#b9c4d9;
  --brand:#2e6bff;
  --brand-2:#72e0a8;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --radius:18px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color:var(--text); background: radial-gradient(1200px 700px at 20% -10%, #1a2140 0%, #0a0f1a 60%), #0a0f1a;
  line-height:1.55;
}
a{color:var(--brand)}
header{position:sticky; top:0; backdrop-filter:saturate(130%) blur(8px); background:linear-gradient(0deg, transparent, rgba(10,15,26,.7)); z-index:10;}
.wrap{max-width:1040px; margin:0 auto; padding:18px 16px}
.nav{display:flex; flex-wrap:wrap; align-items:center; gap:14px}
.logo{display:flex; align-items:center; gap:10px; font-weight:700; flex:1 1 auto}
.badge{font-size:12px; padding:6px 10px; border-radius:999px; background:linear-gradient(90deg, rgba(46,107,255,.15), rgba(114,224,168,.15)); color:var(--muted); border:1px solid rgba(255,255,255,.08)}

/* Hero */
.hero{padding:48px 16px 24px}
.hero h1{font-size: clamp(24px, 6vw, 40px); line-height:1.2; margin:0 0 12px}
.lead{color:var(--muted); max-width:720px; font-size:15px}

/* Card */
.card{margin-top:20px; background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02)); border:1px solid rgba(255,255,255,.08); border-radius:var(--radius); box-shadow:var(--shadow)}
.card .inner{padding:16px}
.grid{display:grid; grid-template-columns:1fr; gap:16px}
@media(min-width:900px){.grid{grid-template-columns:2fr 1.2fr}}

.form{display:flex; gap:10px; flex-wrap:wrap}
.form input[type=text] {
  flex:1 1 200px;
  background:var(--panel);
  border:2px solid #ffffff; /* 边框更明显 */
  border-radius:14px;
  color:var(--text);
  padding:15px;
  font-size:14px;
  outline:none;
  min-width:0;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.form input[type=text]:focus {
  border-color: var(--brand); /* 聚焦时用主题蓝色 */
  box-shadow: 0 0 6px rgba(46,107,255,.6);
}

.form input::placeholder{color:#93a0bb}
.btn{flex:1 1 auto; min-width:140px; text-align:center; appearance:none; border:0; background:linear-gradient(90deg, #2e6bff, #63c6ff); color:white; font-weight:700; padding:15px 16px; font-size: 1rem;  border-radius:14px; cursor:pointer; box-shadow:0 8px 20px rgba(46,107,255,.35)}
.btn:disabled{opacity:.6; cursor:not-allowed}
.fine{font-size:12px; color:var(--muted)}

.bullets{display:grid; grid-template-columns:1fr; gap:8px; font-size:14px}
.bullet{display:flex; gap:8px; align-items:flex-start}
.bullet i{width:8px; height:8px; margin-top:6px; border-radius:50%; background:linear-gradient(90deg, var(--brand), var(--brand-2))}

/* Progress Overlay */
.overlay{position:fixed; inset:0; display:none; align-items:center; justify-content:center; background:rgba(5,8,15,.7); backdrop-filter: blur(6px); z-index:100; padding:10px}
.progress-box{width:100%; max-width:480px; background:rgba(19,28,48,.95); border:1px solid rgba(255,255,255,.12); border-radius:16px; padding:16px}
.progress-head{display:flex; align-items:center; justify-content:space-between; gap:8px; flex-wrap:wrap}
.progress-title{font-weight:700; font-size:15px}
.bar{height:10px; background:rgba(255,255,255,.08); border-radius:999px; overflow:hidden; margin:10px 0 6px}
.bar>span{display:block; height:100%; width:0%; background:linear-gradient(90deg, #2e6bff, #72e0a8); transition:width .18s linear}
.log{background:rgba(255,255,255,.04); border:1px dashed rgba(255,255,255,.12); border-radius:10px; padding:10px; max-height:120px; overflow:auto; font-size:12px; line-height:1.4}

/* Modal */
.modal{position:fixed; inset:0; display:none; place-items:center; background:rgba(5,8,15,.75); backdrop-filter: blur(8px); z-index:110; padding:10px}
.sheet{width:100%; max-width:600px; background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02)); border:1px solid rgba(255,255,255,.12); border-radius:16px; box-shadow:var(--shadow); max-height:90vh; overflow:auto; display:flex; flex-direction:column;}
.sheet .hd{display:flex; align-items:center; justify-content:space-between; padding:14px; border-bottom:1px solid rgba(255,255,255,.08); flex-wrap:wrap; gap:10px}
.sheet .bd{padding:14px; flex:1 1 auto; overflow:auto}
.sheet .ft{display:flex; flex-direction:column; align-items:stretch; gap:10px; padding:14px; border-top:1px solid rgba(255,255,255,.08)}
.pill{font-size:11px; padding:5px 8px; border-radius:999px; background:rgba(114,224,168,.12); color:#c7f7e5; border:1px solid rgba(114,224,168,.28)}
.keygrid{display:grid; grid-template-columns:1fr; gap:8px; margin:10px 0}
@media(min-width:500px){.keygrid{grid-template-columns:repeat(2,1fr)}}
.kv{background:rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.08); padding:10px; border-radius:10px; font-size:13px}
.kv .k{font-size:11px; color:#b9c4d9}
.kv .v{font-weight:700; font-size:14px}

.cta{display:flex; flex-direction:column; gap:10px; width:100%}
.cta a{display:inline-flex; align-items:center; justify-content:center; text-decoration:none; flex:1 1 auto}
.cta .wbtn{background:linear-gradient(90deg, #25D366, #36e07a); color:#04120a; font-weight:700; padding:12px; border-radius:10px; border:1px solid rgba(0,0,0,.12); font-size:1.1rem; width:100%; text-align: center;}
.ghost{background:transparent; border:1px solid rgba(255,255,255,.18); color:var(--text); padding:12px; border-radius:10px; font-size:15px; width:100%}

footer{padding:24px 16px; color:var(--muted); font-size:13px}
footer .cols{display:grid; grid-template-columns:1fr; gap:12px}
@media(min-width:720px){footer .cols{grid-template-columns:2fr 1fr 1fr}}
.legal{font-size:12px; opacity:.9}
.links a{display:inline-block; margin-right:10px}
.cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: rgba(10,15,26,.95);
  border-top: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 -4px 12px rgba(0,0,0,.35);
  color: var(--text);
  z-index: 200;
  display: none;
}
.cookie-content {
  max-width: 1040px;
  margin: 0 auto;
  padding: 16px;
  font-size: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.cookie-content p { margin: 0; color: var(--muted); line-height: 1.5; }
.cookie-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.cookie-actions .btn { flex: 1 1 auto; min-width: 140px; }
.cookie-actions .ghost { flex: 1 1 auto; min-width: 140px; }
.benefits {
  list-style: none;
  padding: 0;
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}
.benefits li { margin-bottom: 4px; }