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85%);-webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 50%,#000 30%,transparent 85%)}.stf-login-left-inner{position:relative;z-index:2;padding:0 9%;max-width:560px}.stf-login-brand{display:flex;align-items:center;gap:14px;margin-bottom:56px}.stf-login-brand-mark{width:44px;height:44px;background:#eef2ff;border:1px solid rgba(79,70,229,.2);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:900;color:#4f46e5;letter-spacing:-.02em}.stf-login-brand-name{font-size:17px;font-weight:800;color:#0f172a;letter-spacing:-.02em;line-height:1.2}.stf-login-brand-name span{color:#4f46e5}.stf-login-brand-sub{font-size:11px;color:#6b7280;font-family:JetBrains Mono,Fira Code,monospace;text-transform:uppercase;letter-spacing:.1em;margin-top:4px}.stf-login-hero{font-size:clamp(2rem,3.2vw,2.75rem);font-weight:800;color:#0f172a;line-height:1.18;letter-spacing:-.035em;margin:0 0 18px}.stf-login-hero-grad{background:linear-gradient(135deg,#4f46e5,#8b5cf6);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}.stf-login-hero-desc{font-size:14.5px;color:#4b5563;line-height:1.75;margin:0 0 32px;max-width:460px}.stf-login-feats{list-style:none;padding:0;margin:0 0 40px;display:flex;flex-direction:column;gap:12px}.stf-login-feats li{display:flex;align-items:center;gap:12px;font-size:14px;color:#374151;font-weight:500}.stf-login-feat-dot{width:22px;height:22px;flex-shrink:0;border-radius:50%;background:#eef2ff;border:1px solid rgba(79,70,229,.2);display:flex;align-items:center;justify-content:center;color:#4f46e5}.stf-login-stats{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid #e5e7eb;border-radius:14px;padding:18px 24px;box-shadow:0 4px 20px rgba(0,0,0,.04)}.stf-login-stat{text-align:center;flex:1 1}.stf-login-stat-v{font-size:22px;font-weight:800;color:#0f172a;letter-spacing:-.02em;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.stf-login-stat-l{font-size:11px;color:#6b7280;margin-top:4px;font-weight:500;letter-spacing:.02em}.stf-login-stat-div{width:1px;height:36px;background:#e5e7eb}.stf-login-right{flex:1 1;background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px 24px;overflow-y:auto;position:relative}.stf-login-topbar{position:absolute;top:20px;right:24px;display:flex;gap:8px}.stf-login-form-wrap{width:100%;max-width:400px}.stf-login-head{text-align:left;margin-bottom:32px}.stf-login-head-mark{width:48px;height:48px;background:linear-gradient(135deg,#eef2ff,#e0e7ff);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:900;color:#4f46e5;border:1px solid rgba(79,70,229,.2);box-shadow:0 4px 10px rgba(79,70,229,.05);letter-spacing:-.02em;margin-bottom:20px}.stf-login-title{font-size:32px;font-weight:800;color:#0f172a;letter-spacing:-.035em;margin:0 0 8px;line-height:1.1}.stf-login-sub{font-size:14px;color:#6b7280;margin:0;line-height:1.5}.stf-login-err{display:flex;align-items:center;gap:8px;padding:11px 14px;border-radius:10px;background:rgba(239,68,68,.06);border:1px solid rgba(239,68,68,.18);color:#dc2626;font-size:13px;margin-bottom:18px;animation:stf-slide .2s ease}.stf-login-form{gap:18px}.stf-field,.stf-login-form{display:flex;flex-direction:column}.stf-label{font-size:13px;font-weight:600;color:#374151;margin-bottom:7px;letter-spacing:.01em}.stf-label-row{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:7px}.stf-forgot{font-size:12px;font-weight:600;color:#4f46e5;text-decoration:none}.stf-forgot:hover{color:#4338ca;text-decoration:underline}.stf-input-wrap{position:relative;display:flex;align-items:center}.stf-input-icon{position:absolute;left:14px;color:#9ca3af;display:flex;align-items:center;pointer-events:none}.stf-input{width:100%;padding:12px 14px 12px 42px;border:1px solid #e5e7eb;border-radius:10px;background:#fff;color:#0f172a;font-size:14px;outline:none;transition:border-color .2s,box-shadow .2s;font-family:inherit;box-sizing:border-box}.stf-input:focus{border-color:#4f46e5;box-shadow:0 0 0 3px rgba(79,70,229,.12)}.stf-input::placeholder{color:#9ca3af}.stf-eye-btn{position:absolute;right:12px;background:none;border:none;cursor:pointer;padding:4px;color:#9ca3af;display:flex;align-items:center;transition:color .15s}.stf-eye-btn:hover{color:#4f46e5}.stf-submit{width:100%;padding:13px 16px;background:linear-gradient(180deg,#6366f1,#312e81)!important;color:#fff;font-size:15px;font-weight:700;border:1px solid #4f46e5!important;border-radius:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:background .2s,transform .15s,box-shadow .2s;box-shadow:inset 0 1px 0 hsla(0,0%,100%,.25),0 4px 12px rgba(79,70,229,.15)!important;font-family:inherit;margin-top:6px;letter-spacing:.01em}.stf-submit:hover:not(:disabled){background:linear-gradient(180deg,#818cf8,#3f37c9)!important;border-color:#6366f1!important;transform:translateY(-1px);box-shadow:inset 0 1px 0 hsla(0,0%,100%,.3),0 6px 20px rgba(79,70,229,.25)!important}.stf-submit:disabled{opacity:.7;cursor:not-allowed}.stf-spinner{width:16px;height:16px;border:2px solid hsla(0,0%,100%,.32);border-top-color:#fff;border-radius:50%;animation:stf-spin .7s linear infinite;display:inline-block}.stf-divider{display:flex;align-items:center;margin:24px 0 20px;gap:12px}.stf-divider:after,.stf-divider:before{content:"";flex:1 1;height:1px;background:#e5e7eb}.stf-divider span{font-size:12px;color:#9ca3af;font-weight:500}.stf-sso{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:12px;border:1px solid #e5e7eb;border-radius:10px;background:#fff;color:#374151;font-size:14px;font-weight:600;text-decoration:none;cursor:pointer;transition:border-color .2s,background .2s,color .2s;box-sizing:border-box}.stf-sso:hover{border-color:#4f46e5;background:#eef2ff;color:#4f46e5}.stf-foot{text-align:center;margin-top:24px;font-size:14px;color:#6b7280}.stf-foot-link{color:#4f46e5;font-weight:700;text-decoration:none}.stf-foot-link:hover{text-decoration:underline}@keyframes stf-spin{to{transform:rotate(1turn)}}@keyframes stf-slide{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@media (max-width:959px){.stf-login-right{padding:24px 18px}.stf-login-form-wrap{max-width:360px}.stf-login-title{font-size:28px}}