/* 云来AI — 登录/注册/回调页样式（与落地页同一设计语言） */
.auth-body{min-height:100svh;display:flex;flex-direction:column}
.auth-topbar{
  position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;
  padding:16px clamp(18px,5vw,44px);
}
.auth-topbar .brand-mark{display:inline-flex;align-items:center;gap:9px}
.auth-topbar .brand-icon{height:36px;width:auto}
.auth-topbar .brand-text{
  font-family:'MiSansHeavy','Noto Sans CJK SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:1.35rem;font-weight:900;letter-spacing:.045em;line-height:1;
  background:linear-gradient(96deg,#2ee6ff 0%,#38bdf8 20%,#60a5fa 40%,#a78bfa 62%,#e879f9 82%,#f472b6 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap;
}
.auth-main{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:20px clamp(16px,5vw,40px) 50px;gap:26px;
}
.auth-card{
  width:100%;max-width:420px;padding:38px 34px;border-radius:22px;
  background:rgba(11,17,33,.78);backdrop-filter:blur(20px) saturate(1.3);
  border:1px solid var(--line-strong);position:relative;
  box-shadow:0 30px 80px rgba(2,6,18,.7),inset 0 1px 0 rgba(255,255,255,.05);
}
.auth-card::before{
  content:"";position:absolute;inset:-1px;border-radius:23px;padding:1px;
  background:linear-gradient(135deg,rgba(34,211,238,.55),transparent 42%,transparent 58%,rgba(217,70,239,.55));
  -webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.auth-title{font-size:1.7rem;font-weight:800;letter-spacing:-.01em;text-align:center}
.auth-sub{color:var(--txt-2);font-size:.9rem;text-align:center;margin:8px 0 26px}

.btn-google{
  width:100%;height:52px;border-radius:13px;background:#fff;color:#1a1a1a;
  display:flex;align-items:center;justify-content:center;gap:11px;font-size:.95rem;font-weight:600;
  transition:transform .18s,box-shadow .25s;border:none;
}
.btn-google:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(255,255,255,.18)}
.btn-google:active{transform:translateY(0)}

.auth-divider{display:flex;align-items:center;gap:14px;margin:22px 0;color:var(--txt-2);font-size:.8rem}
.auth-divider::before,.auth-divider::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent)}

.auth-field{margin-bottom:16px}
.auth-field-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:7px}
.auth-field label{display:block;font-size:.82rem;color:var(--txt-2);font-weight:600;margin-bottom:7px}
.auth-field-head label{margin-bottom:0}
.auth-field input{
  width:100%;height:48px;padding:0 15px;border-radius:12px;font-size:.94rem;color:var(--txt);
  background:rgba(6,10,22,.7);border:1px solid var(--line);outline:none;transition:border-color .2s,box-shadow .2s;
}
.auth-field input::placeholder{color:#6b7da3}
.auth-field input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.12)}
.auth-link{color:var(--cyan);font-size:.82rem;font-weight:600;transition:opacity .2s}
.auth-link:hover{opacity:.75}

.auth-error{
  background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.4);color:#fca5a5;
  padding:11px 14px;border-radius:11px;font-size:.84rem;margin-bottom:16px;
}
.auth-submit{height:50px;font-size:1rem;margin-top:4px}
.auth-alt{text-align:center;color:var(--txt-2);font-size:.86rem;margin-top:22px}
.auth-foot{color:var(--txt-3);font-size:.8rem;text-align:center}
.auth-foot a{color:var(--txt-2)}
.auth-foot a:hover{color:var(--cyan)}

/* 回调/加载态 */
.cb-wrap{display:flex;flex-direction:column;align-items:center;gap:22px;text-align:center}
.cb-spinner{width:52px;height:52px;border:3px solid rgba(34,211,238,.25);border-top-color:var(--cyan);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.cb-title{font-size:1.3rem;font-weight:700}
.cb-msg{color:var(--txt-2);font-size:.92rem;max-width:380px}
.cb-icon{width:76px;height:76px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:2.2rem}
.cb-icon.ok{background:rgba(34,197,94,.15);border:1px solid rgba(34,197,94,.4);color:#4ade80}
.cb-icon.err{background:rgba(239,68,68,.15);border:1px solid rgba(239,68,68,.4);color:#f87171}

/* 注册暂未开放卡片 */
.invite-card{text-align:center}
.invite-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;border:1px solid var(--line-strong);background:rgba(10,16,32,.6);color:var(--cyan);font-size:.8rem;margin-bottom:18px}
.invite-list{list-style:none;text-align:left;margin:6px 0 24px;display:flex;flex-direction:column;gap:12px}
.invite-list li{position:relative;padding-left:26px;color:var(--txt-2);font-size:.9rem}
.invite-list li::before{content:"✓";position:absolute;left:0;top:0;width:18px;height:18px;border-radius:50%;background:var(--grad-soft);border:1px solid rgba(34,211,238,.5);color:var(--cyan);font-size:.66rem;font-weight:900;display:flex;align-items:center;justify-content:center}

@media (max-width:460px){
  .auth-card{padding:30px 22px}
  .auth-title{font-size:1.45rem}
}