/* ===== 桃子AI 官方平台 - 公共液态玻璃样式 ===== */
:root{
  --ink:#1b2430;--muted:#7a8595;--blue:#3d7bff;
  --line:rgba(255,255,255,.65);
  --glass-bg:rgba(255,255,255,.42);
  --glass-border:rgba(255,255,255,.72);
  --glass-shadow:0 20px 60px rgba(30,50,90,.16);
  --radius:18px;
  --peach:linear-gradient(135deg,#ff9ec0,#ff6fa5);
  --peach2:linear-gradient(135deg,#5d8bff,#ff7aa8);
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font:14px/1.55 Inter,system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink)}
body{background:#c9d4e4 url('/bg.jpg?v=2') center/cover fixed no-repeat}
body::before{content:"";position:fixed;inset:0;z-index:0;pointer-events:none;background:rgba(235,241,250,.34);backdrop-filter:blur(14px) saturate(1.5);-webkit-backdrop-filter:blur(14px) saturate(1.5)}
button,input,textarea,select{font:inherit}
button{border:0;cursor:pointer;color:inherit;background:none}
a{text-decoration:none;color:inherit}
.glass{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius);box-shadow:var(--glass-shadow),inset 0 1px 0 rgba(255,255,255,.75);backdrop-filter:blur(22px) saturate(1.6);-webkit-backdrop-filter:blur(22px) saturate(1.6)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;border-radius:16px;font-size:15px;font-weight:700;color:#fff;background:linear-gradient(135deg,#5d8bff,#ff7aa8);box-shadow:0 10px 26px rgba(93,139,255,.35);transition:.2s;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.35)}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(255,122,168,.4)}
.btn.ghost{background:rgba(255,255,255,.45);color:#3a4a63;border:1px solid rgba(255,255,255,.8);box-shadow:0 8px 20px rgba(30,50,90,.12)}
.btn.ghost:hover{background:rgba(255,255,255,.7)}
.btn.small{padding:9px 20px;font-size:13px;border-radius:12px}
.field{margin-bottom:15px}
.field label{display:block;font-size:13px;color:#4a5a72;margin-bottom:6px;font-weight:600}
.field input{width:100%;padding:12px 15px;border-radius:12px;border:1px solid rgba(255,255,255,.85);background:rgba(255,255,255,.6);outline:none;transition:.2s;font-size:14px}
.field input:focus{border-color:var(--blue);background:rgba(255,255,255,.85);box-shadow:0 0 0 3px rgba(61,123,255,.15)}
.err{color:#dc2626;font-size:13px;min-height:20px;margin:4px 0 8px}
.ok-msg{color:#16a34a;font-size:13px;min-height:20px;margin:4px 0 8px}
.toast-wrap{position:fixed;top:20px;left:50%;transform:translateX(-50%);z-index:9999;display:flex;flex-direction:column;gap:8px;align-items:center}
.toast{padding:10px 22px;border-radius:12px;background:rgba(30,40,60,.82);color:#fff;font-size:13px;box-shadow:0 10px 30px rgba(0,0,0,.25);backdrop-filter:blur(12px);animation:toastIn .25s ease}
@keyframes toastIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}