*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
    body {
      font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
      background: #0a0a0f;
      color: #f1f1f6;
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

    .container {
      display: flex;
      width: 100%;
      min-height: 100vh;
    }

    .left-panel {
      flex: 0 0 60%;
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, #0a0a1a 0%, #1a0a2e 50%, #0a0a1a 100%);
      overflow: hidden;
      padding: 60px;
    }

    .left-panel::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(139,92,246,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(139,92,246,0.04) 1px, transparent 1px);
      background-size: 40px 40px;
    }

    .orb {
      position: absolute;
      border-radius: 50%;
      filter: blur(100px);
      pointer-events: none;
    }
    .orb-1 {
      width: 400px; height: 400px;
      background: #8b5cf6;
      top: -150px; right: -100px;
      opacity: 0.3;
      animation: float 12s ease-in-out infinite;
    }
    .orb-2 {
      width: 300px; height: 300px;
      background: #f472b6;
      bottom: -100px; left: -80px;
      opacity: 0.2;
      animation: float 15s ease-in-out infinite reverse;
    }
    @keyframes float {
      0%, 100% { transform: translate(0, 0) scale(1); }
      33% { transform: translate(30px, -40px) scale(1.1); }
      66% { transform: translate(-20px, 20px) scale(0.95); }
    }

    .left-content {
      position: relative;
      z-index: 2;
      text-align: center;
      max-width: 480px;
    }

    .left-logo {
      width: 72px; height: 72px;
      background: linear-gradient(135deg, #f472b6, #8b5cf6);
      border-radius: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 36px;
      margin: 0 auto 28px;
      box-shadow: 0 8px 32px rgba(139, 92, 246, 0.3);
    }

    .left-content h1 {
      font-size: 36px;
      font-weight: 800;
      margin-bottom: 12px;
      background: linear-gradient(135deg, #f472b6, #a78bfa);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .left-content p {
      font-size: 16px;
      line-height: 1.8;
      color: rgba(255,255,255,0.45);
      margin-bottom: 40px;
    }

    .feature-list {
      text-align: left;
      display: inline-block;
    }

    .feature-item {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 12px 0;
      font-size: 15px;
      color: rgba(255,255,255,0.6);
    }

    .feature-item .icon {
      width: 36px; height: 36px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      flex-shrink: 0;
    }
    .feature-item .icon.purple { background: rgba(139,92,246,0.15); }
    .feature-item .icon.pink { background: rgba(244,114,182,0.15); }
    .feature-item .icon.blue { background: rgba(96,165,250,0.15); }

    .right-panel {
      flex: 0 0 40%;
      display: flex;
      align-items: center;
      justify-content: center;
      background: #0f0f1a;
      padding: 60px;
      position: relative;
    }

    .right-panel::before {
      content: '';
      position: absolute;
      left: 0; top: 10%; bottom: 10%;
      width: 1px;
      background: linear-gradient(180deg, transparent, rgba(139,92,246,0.2), transparent);
    }

    .login-form {
      width: 100%;
      max-width: 380px;
    }

    .login-form h2 {
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .login-form .subtitle {
      font-size: 14px;
      color: rgba(255,255,255,0.4);
      margin-bottom: 36px;
    }

    .form-group {
      margin-bottom: 20px;
    }

    .form-group label {
      display: block;
      font-size: 13px;
      font-weight: 500;
      color: rgba(255,255,255,0.6);
      margin-bottom: 8px;
    }

    .form-group input {
      width: 100%;
      padding: 12px 16px;
      border-radius: 10px;
      border: 1px solid rgba(255,255,255,0.08);
      background: rgba(255,255,255,0.04);
      color: #f1f1f6;
      font-size: 14px;
      font-family: inherit;
      outline: none;
      transition: all 0.2s;
    }

    .form-group input:focus {
      border-color: rgba(139,92,246,0.4);
      background: rgba(139,92,246,0.05);
      box-shadow: 0 0 0 3px rgba(139,92,246,0.1);
    }

    .form-group input::placeholder {
      color: rgba(255,255,255,0.2);
    }

    .login-btn {
      width: 100%;
      padding: 14px;
      border-radius: 10px;
      border: none;
      background: linear-gradient(135deg, #f472b6, #8b5cf6);
      color: #fff;
      font-size: 15px;
      font-weight: 600;
      font-family: inherit;
      cursor: pointer;
      transition: all 0.3s;
      margin-top: 8px;
    }

    .login-btn:hover {
      transform: translateY(-1px);
      box-shadow: 0 8px 24px rgba(139, 92, 246, 0.35);
    }

    .error-msg {
      background: rgba(244,63,94,0.1);
      border: 1px solid rgba(244,63,94,0.2);
      border-radius: 10px;
      padding: 12px 16px;
      font-size: 13px;
      color: #f43f5e;
      margin-bottom: 20px;
    }

    .register-link {
      text-align: center;
      margin-top: 24px;
      font-size: 13px;
      color: rgba(255,255,255,0.35);
    }

    .register-link a {
      color: #a78bfa;
      text-decoration: none;
      font-weight: 500;
    }

    .register-link a:hover {
      color: #c4b5fd;
    }

    .back-link {
      text-align: center;
      margin-top: 12px;
    }

    .back-link a {
      font-size: 13px;
      color: rgba(255,255,255,0.3);
      text-decoration: none;
    }

    .back-link a:hover {
      color: rgba(255,255,255,0.5);
    }

    @media (max-width: 768px) {
      .left-panel { display: none; }
      .right-panel { flex: 1; }
      .right-panel::before { display: none; }
    }