* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
      background: linear-gradient(135deg, #6C8EBF 0%, #D6E3F8 100%);
      min-height: 100vh;
      display: flex;
      justify-content: center;
      align-items: center;
      padding: 20px;
      position: relative;
      overflow-x: hidden;
    }

    .container {
      background: #ffffff;
      max-width: 900px;
      width: 100%;
      border-radius: 16px;
      box-shadow: 0 20px 60px rgba(108, 142, 191, 0.3);
      overflow: hidden;
      position: relative;
    }

    .header {
      background: linear-gradient(135deg, #6C8EBF 0%, #8FA8C9 100%);
      color: white;
      padding: 40px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .header h1 {
      font-size: 32px;
      font-weight: 700;
      margin-bottom: 10px;
      animation: bounce 2s ease-in-out infinite;
    }

    @keyframes bounce {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-10px); }
    }

    .header p {
      font-size: 16px;
      opacity: 0.95;
    }

    .content {
      padding: 40px;
    }

    .support-card {
      background: linear-gradient(135deg, #FFF8F0 0%, #FFE8DC 100%);
      border-radius: 12px;
      padding: 30px;
      margin-bottom: 25px;
      border: 3px dashed #FFB6C1;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }

    .support-card:hover {
      transform: scale(1.02) rotate(-1deg);
      box-shadow: 0 8px 20px rgba(255, 182, 193, 0.3);
    }

    .support-card::before {
      content: "🤖";
      position: absolute;
      top: -15px;
      right: -15px;
      font-size: 50px;
      animation: wiggle 0.5s ease-in-out infinite;
    }

    @keyframes wiggle {
      0%, 100% { transform: rotate(-5deg); }
      50% { transform: rotate(5deg); }
    }

    .card-title {
      font-size: 20px;
      font-weight: 700;
      color: #FF6B6B;
      margin-bottom: 15px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .card-content {
      font-size: 15px;
      color: #555;
      line-height: 1.8;
    }

    .card-content strong {
      color: #6C8EBF;
      font-weight: 600;
    }

    .emoji-rain {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      pointer-events: none;
      z-index: 0;
      overflow: hidden;
    }

    .emoji {
      position: absolute;
      font-size: 24px;
      animation: fall linear infinite;
      opacity: 0.6;
    }

    @keyframes fall {
      0% {
        transform: translateY(-50px) rotate(0deg);
        opacity: 1;
      }
      100% {
        transform: translateY(100vh) rotate(360deg);
        opacity: 0;
      }
    }

    .warning-box {
      background: #FFF3CD;
      border: 3px solid #FFC107;
      border-radius: 12px;
      padding: 25px;
      margin-top: 30px;
      text-align: center;
      position: relative;
    }

    .warning-box::after {
      content: "⚠️";
      position: absolute;
      top: -25px;
      left: 50%;
      transform: translateX(-50%);
      font-size: 40px;
      animation: pulse 1.5s ease-in-out infinite;
    }

    @keyframes pulse {
      0%, 100% { transform: translateX(-50%) scale(1); }
      50% { transform: translateX(-50%) scale(1.2); }
    }

    .warning-title {
      font-size: 18px;
      font-weight: 700;
      color: #856404;
      margin-bottom: 15px;
    }

    .warning-text {
      font-size: 15px;
      color: #856404;
      line-height: 1.8;
    }

    .btn-back {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, #6C8EBF 0%, #8FA8C9 100%);
      color: white;
      padding: 15px 40px;
      border-radius: 8px;
      text-decoration: none;
      font-weight: 600;
      margin-top: 30px;
      transition: all 0.3s ease;
      position: relative;
      overflow: hidden;
    }

    .btn-back:hover {
      box-shadow: 0 8px 25px rgba(108, 142, 191, 0.5);
      transform: translateY(-3px) scale(1.05);
    }

    .btn-back::before {
      content: "";
      position: absolute;
      top: 0;
      left: -100%;
      width: 100%;
      height: 100%;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
      animation: shine 2s infinite;
    }

    @keyframes shine {
      0% { left: -100%; }
      100% { left: 100%; }
    }

    .footer {
      background: #F5F5F5;
      padding: 20px;
      text-align: center;
      font-size: 14px;
      color: #666;
      border-top: 1px solid rgba(108, 142, 191, 0.1);
    }

    .footer a {
      color: #6C8EBF;
      text-decoration: none;
      transition: all 0.3s ease;
    }

    .footer a:hover {
      text-decoration: underline;
    }

    @media (max-width: 768px) {
      .header {
        padding: 30px 20px;
      }

      .header h1 {
        font-size: 24px;
      }

      .content {
        padding: 25px 20px;
      }

      .support-card {
        padding: 20px;
      }
    }