/* ===========================================================================
   现代化登录弹窗 - 深色玻璃态
=========================================================================== */
.auth-modal{position:fixed;inset:0;z-index:99999;display:flex;align-items:center;justify-content:center;font-family:'Inter','SF Pro Display',-apple-system,Segoe UI,Arial,sans-serif;}
.auth-modal[hidden]{display:none !important;}
.auth-modal *{box-sizing:border-box;}
.auth-backdrop{position:absolute;inset:0;background:rgba(4,8,20,.78);backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);animation:auth-fade .25s ease;}
@keyframes auth-fade{from{opacity:0}to{opacity:1}}

.auth-card{position:relative;width:100%;max-width:440px;margin:0 16px;padding:34px 34px 28px;background:linear-gradient(180deg,#12182a 0%,#0d1220 100%);border:1px solid rgba(148,163,184,.16);border-radius:22px;box-shadow:0 30px 80px rgba(0,0,0,.55),0 0 0 1px rgba(34,211,238,.04) inset;color:#e7ecff;animation:auth-pop .32s cubic-bezier(.2,.9,.25,1.1);max-height:92vh;overflow-y:auto;}
@keyframes auth-pop{from{opacity:0;transform:translateY(14px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}

.auth-x{position:absolute;top:14px;right:16px;width:34px;height:34px;border:none;background:rgba(255,255,255,.04);color:#9aa3c4;border-radius:50%;font-size:22px;cursor:pointer;line-height:1;transition:all .18s;display:flex;align-items:center;justify-content:center;}
.auth-x:hover{background:rgba(255,255,255,.1);color:#fff;transform:rotate(90deg);}

.auth-brand{text-align:center;margin-bottom:20px;}
.auth-logo{max-height:44px;max-width:160px;margin:0 auto 10px;display:block;filter:drop-shadow(0 2px 6px rgba(0,0,0,.4));}
.auth-logo-text{display:inline-block;font-size:22px;font-weight:800;color:#22d3ee;margin-bottom:6px;letter-spacing:.5px;}
.auth-title{margin:6px 0 4px;font-size:22px;font-weight:700;color:#f5f7ff;letter-spacing:.2px;}
.auth-sub{margin:0;font-size:13px;color:#8892b8;line-height:1.55;}

.auth-tabs{display:flex;gap:0;margin:22px 0 18px;padding:4px;background:rgba(255,255,255,.035);border:1px solid rgba(148,163,184,.12);border-radius:12px;}
.auth-tab{flex:1;padding:10px 0;background:transparent;border:none;color:#8892b8;font-size:13px;font-weight:600;cursor:pointer;border-radius:9px;transition:all .2s;}
.auth-tab:hover{color:#cdd5f0;}
.auth-tab.is-active{background:linear-gradient(180deg,#1b2340 0%,#141a30 100%);color:#ffffff;box-shadow:0 2px 8px rgba(0,0,0,.3),0 0 0 1px rgba(34,211,238,.22);}

.auth-google{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:12px 14px;background:#ffffff;color:#1f2937;border:none;border-radius:11px;font-size:14px;font-weight:600;cursor:pointer;transition:all .18s;box-shadow:0 1px 0 rgba(255,255,255,.15) inset,0 6px 18px rgba(0,0,0,.25);}
.auth-google:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(0,0,0,.35);}
.auth-google:active{transform:translateY(0);}

.auth-divider{display:flex;align-items:center;gap:12px;margin:18px 0 16px;color:#5d6689;font-size:11px;letter-spacing:1.4px;text-transform:uppercase;}
.auth-divider::before,.auth-divider::after{content:"";flex:1;height:1px;background:rgba(148,163,184,.18);}

.auth-form{display:none;flex-direction:column;gap:14px;}
.auth-form.is-active{display:flex;animation:auth-slide .3s ease;}
@keyframes auth-slide{from{opacity:0;transform:translateX(6px)}to{opacity:1;transform:translateX(0)}}

.auth-field{position:relative;}
.auth-field input{width:100%;padding:16px 14px 10px;background:rgba(255,255,255,.03);border:1px solid rgba(148,163,184,.2);border-radius:11px;color:#f5f7ff;font-size:14px;outline:none;transition:all .2s;}
.auth-field input:focus{border-color:#22d3ee;background:rgba(34,211,238,.05);box-shadow:0 0 0 3px rgba(34,211,238,.12);}
.auth-field input::placeholder{color:transparent;}
.auth-field label{position:absolute;left:14px;top:14px;color:#6b7296;font-size:14px;pointer-events:none;transition:all .18s;background:transparent;padding:0 4px;}
.auth-field input:focus+label,
.auth-field input:not(:placeholder-shown)+label{top:-7px;left:10px;font-size:11px;color:#22d3ee;background:#101628;}
.auth-field input:-webkit-autofill,
.auth-field input:-webkit-autofill:focus{-webkit-text-fill-color:#f5f7ff !important;-webkit-box-shadow:0 0 0 1000px #101628 inset !important;caret-color:#f5f7ff;}

.auth-eye{position:absolute;right:10px;top:50%;transform:translateY(-50%);width:30px;height:30px;border:none;background:transparent;color:#6b7296;cursor:pointer;opacity:.7;font-size:16px;}
.auth-eye:hover{opacity:1;color:#22d3ee;}

.auth-field-otp input{padding-right:110px;}
.auth-otp-btn{position:absolute;right:6px;top:50%;transform:translateY(-50%);padding:8px 14px;background:rgba(34,211,238,.1);color:#22d3ee;border:1px solid rgba(34,211,238,.3);border-radius:8px;font-size:12px;font-weight:600;cursor:pointer;transition:all .18s;}
.auth-otp-btn:hover:not(:disabled){background:rgba(34,211,238,.2);}
.auth-otp-btn:disabled{opacity:.55;cursor:not-allowed;}

.auth-row{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;margin-top:-4px;}
.auth-check{display:inline-flex;align-items:center;gap:7px;color:#a3acd0;cursor:pointer;user-select:none;}
.auth-check input{width:15px;height:15px;accent-color:#22d3ee;cursor:pointer;}
.auth-check-wide{margin-top:-2px;line-height:1.5;}
.auth-check-wide a{color:#22d3ee;text-decoration:none;}
.auth-check-wide a:hover{text-decoration:underline;}
.auth-link{color:#22d3ee;text-decoration:none;font-weight:500;}
.auth-link:hover{text-decoration:underline;}

.auth-submit{width:100%;padding:13px 18px;background:linear-gradient(180deg,#22d3ee 0%,#0ea5e9 100%);color:#051026;border:none;border-radius:11px;font-size:14.5px;font-weight:700;cursor:pointer;margin-top:4px;letter-spacing:.2px;transition:all .2s;box-shadow:0 10px 24px -6px rgba(34,211,238,.45),0 0 0 1px rgba(255,255,255,.15) inset;}
.auth-submit:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 14px 30px -6px rgba(34,211,238,.55);}
.auth-submit:active{transform:translateY(0);}
.auth-submit:disabled{opacity:.6;cursor:wait;}
.auth-submit.is-loading{color:transparent;position:relative;}
.auth-submit.is-loading::after{content:"";position:absolute;top:50%;left:50%;width:18px;height:18px;margin:-9px 0 0 -9px;border:2.5px solid rgba(5,16,38,.3);border-top-color:#051026;border-radius:50%;animation:auth-spin .7s linear infinite;}
@keyframes auth-spin{to{transform:rotate(360deg)}}

.auth-alt{margin:12px 0 0;text-align:center;font-size:13px;color:#8892b8;}
.auth-alt a{color:#22d3ee;text-decoration:none;font-weight:600;}
.auth-alt a:hover{text-decoration:underline;}

.auth-toast{position:absolute;left:34px;right:34px;bottom:22px;padding:12px 16px;background:rgba(10,14,28,.94);border:1px solid rgba(34,211,238,.3);border-radius:10px;color:#f5f7ff;font-size:13px;text-align:center;box-shadow:0 10px 28px rgba(0,0,0,.4);animation:auth-toast-in .3s ease;}
.auth-toast.is-error{border-color:rgba(248,113,113,.4);background:rgba(40,14,24,.96);}
.auth-toast.is-success{border-color:rgba(74,222,128,.4);background:rgba(12,36,22,.96);}
@keyframes auth-toast-in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

@media (max-width: 480px){
  .auth-card{padding:26px 22px 22px;border-radius:18px;max-height:94vh;}
  .auth-title{font-size:19px;}
  .auth-toast{left:22px;right:22px;bottom:14px;}
}

/* ====== Sign-in 按钮 (header 入口) ====== */
/* margin-left:auto 让 auth 入口贴到导航栏最右 */
.rk-auth-entry{display:inline-flex;align-items:center;gap:8px;margin-left:auto;justify-self:end;}
.rk-auth-user{position:relative;display:inline-block;}
.rk-auth-avatar{position:relative;display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#22d3ee,#0ea5e9);color:#051026;cursor:pointer;border:2px solid rgba(255,255,255,.12);overflow:visible;user-select:none;text-decoration:none !important;transition:transform .15s,box-shadow .15s;}
.rk-auth-avatar:hover{transform:translateY(-1px);box-shadow:0 8px 20px -4px rgba(34,211,238,.5);}
.rk-auth-avatar i{font-size:16px;color:#051026;line-height:1;}
.rk-auth-avatar.is-logged{background:linear-gradient(135deg,#22d3ee,#0ea5e9);}
/* 未登录态: 空心圆按钮, 青色边框, 透明背景 */
.rk-auth-avatar--guest{background:transparent;border:1.5px solid rgba(34,211,238,.6);color:#22d3ee;}
.rk-auth-avatar--guest i{color:#22d3ee;}
.rk-auth-avatar--guest:hover{background:rgba(34,211,238,.12);border-color:#22d3ee;}
.rk-auth-menu{position:absolute;top:calc(100% + 8px);right:0;min-width:200px;background:linear-gradient(180deg,#12182a 0%,#0d1220 100%);border:1px solid rgba(148,163,184,.18);border-radius:12px;padding:8px;box-shadow:0 18px 40px rgba(0,0,0,.5);opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .18s;z-index:9999;}
.rk-auth-user.is-open .rk-auth-menu,
.rk-auth-user:hover .rk-auth-menu{opacity:1;visibility:visible;transform:translateY(0);}
.rk-auth-menu a,
.rk-auth-menu button{display:flex;align-items:center;gap:10px;width:100%;padding:9px 12px;background:transparent;border:none;color:#cdd5f0;font-size:13px;font-family:inherit;text-align:left;text-decoration:none;border-radius:7px;cursor:pointer;transition:all .15s;}
.rk-auth-menu a:hover,
.rk-auth-menu button:hover{background:rgba(34,211,238,.1);color:#fff;}
.rk-auth-menu hr{border:none;border-top:1px solid rgba(148,163,184,.14);margin:4px 6px;}
.rk-auth-menu-email{padding:8px 12px;font-size:11px;color:#6b7296;word-break:break-all;line-height:1.4;}