:root {
      --bg: #020617;
      --card: #0f172a;
      --accent: #10b981;
      --accent-glow: rgba(16, 185, 129, 0.4);
      --text-main: #ffffff;
      --text-muted: #94a3b8;
      --text-bright: #f1f5f9;
      --danger: #ef4444;
    }

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

    body {
      font-family: -apple-system, system-ui, "Segoe UI", Roboto, sans-serif;
      background-color: var(--bg);
      color: var(--text-main);
      display: flex;
      justify-content: center;
    }

    .app-container {
      width: 100%;
      max-width: 480px;
      padding: 30px 20px;
    }

    header {
      text-align: center;
      margin-bottom: 30px;
    }

    .badge {
      display: inline-block;
      background: rgba(16, 185, 129, 0.1);
      color: var(--accent);
      padding: 6px 14px;
      border-radius: 50px;
      font-size: 12px;
      font-weight: 800;
      margin-bottom: 12px;
      border: 1px solid var(--accent-glow);
    }

    h1 {
      font-size: 1.9rem;
      font-weight: 900;
      line-height: 1.2;
      margin-bottom: 10px;
    }

    h1 span {
      color: var(--accent);
    }

    .sub-headline {
      color: var(--text-muted);
      font-size: 1rem;
    }

    .ai-box {
      background: linear-gradient(160deg, #1e293b 0%, #020617 100%);
      border: 1px solid rgba(255,255,255,0.1);
      border-radius: 20px;
      padding: 22px;
      margin-top: 20px;
      position: relative;
    }

    .ai-status {
      position: absolute;
      top: -10px;
      left: 20px;
      background: var(--danger);
      color: #fff;
      padding: 3px 10px;
      border-radius: 6px;
      font-size: 11px;
      font-weight: 800;
    }

    .insight-title {
      color: var(--accent);
      font-size: 1.2rem;
      font-weight: 800;
      margin-bottom: 12px;
    }

    .insight-content {
      border-left: 4px solid var(--accent);
      padding-left: 14px;
      color: var(--text-bright);
      font-size: 0.95rem;
      line-height: 1.6;
    }

    .cta-btn {
  display: block;
  width: 100%;
  text-align: center;
  margin-top: 20px;
  padding: 18px;
  border-radius: 16px;
  background: var(--accent);
  color: #020617;
  font-weight: 900;
  font-size: 1.1rem;
  text-decoration: none;
  box-shadow: 0 15px 35px var(--accent-glow);

  /* 只新增下面三行 */
  position: relative;
  overflow: hidden;
  animation: breathe 2.2s ease-in-out infinite;
  transition: transform 0.2s ease;
}

/* 呼吸动画 */
@keyframes breathe {
  0% {
    transform: scale(1);
    box-shadow: 0 15px 35px rgba(16, 185, 129, 0.4);
  }
  50% {
    transform: scale(1.04);
    box-shadow: 0 20px 45px rgba(16, 185, 129, 0.6);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 15px 35px rgba(16, 185, 129, 0.4);
  }
}

/* hover效果 */
.cta-btn:hover {
  transform: scale(1.06);
  animation-play-state: paused;
}

/* 点击波纹 */
.cta-btn::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 10px;
  background: rgba(255,255,255,0.5);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(1);
  opacity: 0;
}

.cta-btn:active::after {
  animation: ripple 0.5s ease-out;
}

@keyframes ripple {
  from {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
  to {
    opacity: 0;
    transform: translate(-50%, -50%) scale(20);
  }
}

.ws-icon {
  width: 22px;
  height: 22px;
  vertical-align: middle;
  margin-right: 8px;
}

    .stats-bar {
      text-align: center;
      margin-top: 15px;
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .section-title {
      margin-top: 35px;
      margin-bottom: 20px;
      font-size: 1.1rem;
      font-weight: 800;
    }

    .testimonial {
      background: rgba(30, 41, 59, 0.5);
      padding: 18px;
      border-radius: 16px;
      margin-bottom: 15px;
      border: 1px solid rgba(255,255,255,0.08);
    }

    .t-top {
      display: flex;
      justify-content: space-between;
      margin-bottom: 8px;
    }

    .t-name {
      font-weight: 700;
    }

    .profit {
      color: var(--accent);
      font-weight: 800;
    }

    .t-body {
      color: #cbd5e1;
      font-size: 0.9rem;
      line-height: 1.5;
    }

    footer {
      text-align: center;
      margin-top: 50px;
      font-size: 0.8rem;
      color: #64748b;
    }