.page-vip666 {
        font-family: 'Arial', sans-serif;
        color: #333333;
        line-height: 1.6;
        background-color: #f8f9fa;
      }

      .page-vip666__section {
        padding: 40px 20px;
        max-width: 1200px;
        margin: 0 auto;
        box-sizing: border-box;
      }

      .page-vip666__section--dark {
        background-color: #2563eb;
        color: #ffffff;
      }

      .page-vip666__section-title {
        font-size: 2.5em;
        color: #2563eb;
        text-align: center;
        margin-bottom: 20px;
        font-weight: 700;
      }

      .page-vip666__section-title--light {
        color: #ffffff;
      }

      .page-vip666__section-description {
        font-size: 1.1em;
        text-align: center;
        max-width: 800px;
        margin: 0 auto 40px auto;
        color: #64748b;
      }

      .page-vip666__section-description--light {
        color: #f0f0f0;
      }

      .page-vip666__hero-section {
        position: relative;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        text-align: center;
        padding: 60px 20px;
        padding-top: 10px; /* body已处理header offset */
        background-color: #ffffff;
      }

      .page-vip666__hero-image-wrapper {
        width: 100%;
        max-width: 1200px;
        margin-bottom: 30px;
      }

      .page-vip666__hero-image {
        width: 100%;
        height: auto;
        display: block;
        border-radius: 15px;
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
      }

      .page-vip666__hero-content {
        max-width: 900px;
      }

      .page-vip666__hero-title {
        font-size: clamp(2em, 5vw, 3.2em);
        color: #2563eb;
        margin-bottom: 15px;
        font-weight: 800;
        line-height: 1.2;
        letter-spacing: -0.03em;
      }

      .page-vip666__hero-subtitle {
        font-size: clamp(1em, 2.5vw, 1.3em);
        color: #64748b;
        margin-bottom: 30px;
        line-height: 1.5;
      }

      .page-vip666__cta-buttons {
        display: flex;
        justify-content: center;
        gap: 20px;
        margin-top: 30px;
        flex-wrap: wrap;
      }

      .page-vip666__btn-primary,
      .page-vip666__btn-secondary {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 15px 30px;
        border-radius: 50px;
        font-weight: 700;
        text-decoration: none;
        transition: all 0.3s ease;
        cursor: pointer;
        font-size: 1.1em;
        border: 2px solid transparent;
        box-sizing: border-box;
      }

      .page-vip666__btn-primary {
        background-color: #2563eb;
        color: #ffffff;
        box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
      }

      .page-vip666__btn-primary:hover {
        background-color: #1d4ed8;
        box-shadow: 0 6px 20px rgba(37, 99, 235, 0.6);
        transform: translateY(-2px);
      }

      .page-vip666__btn-secondary {
        background-color: #ffffff;
        color: #2563eb;
        border-color: #2563eb;
        box-shadow: 0 4px 15px rgba(100, 116, 139, 0.2);
      }

      .page-vip666__btn-secondary:hover {
        background-color: #f0f8ff;
        color: #1d4ed8;
        border-color: #1d4ed8;
        box-shadow: 0 6px 20px rgba(100, 116, 139, 0.3);
        transform: translateY(-2px);
      }

      .page-vip666__floating-login {
        position: fixed;
        bottom: 20px;
        right: 20px;
        z-index: 1000;
        background-color: #ef4444;
        color: #ffffff;
        padding: 12px 25px;
        border-radius: 50px;
        text-decoration: none;
        font-weight: 700;
        font-size: 1em;
        box-shadow: 0 5px 15px rgba(239, 68, 68, 0.4);
        transition: all 0.3s ease;
        animation: pulse 2s infinite;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
        max-width: 250px;
        box-sizing: border-box;
        white-space: normal;
        word-wrap: break-word;
      }

      .page-vip666__floating-login:hover {
        background-color: #dc2626;
        box-shadow: 0 8px 20px rgba(239, 68, 68, 0.6);
        transform: translateY(-2px);
      }

      @keyframes pulse {
        0% { transform: scale(1); }
        50% { transform: scale(1.05); }
        100% { transform: scale(1); }
      }

      .page-vip666__games-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 25px;
        margin-top: 40px;
      }

      .page-vip666__game-card {
        background-color: #ffffff;
        border-radius: 15px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
        overflow: hidden;
        text-align: center;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        display: flex;
        flex-direction: column;
      }

      .page-vip666__game-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
      }

      .page-vip666__game-image {
        width: 100%;
        height: 200px;
        object-fit: cover;
        display: block;
      }

      .page-vip666__game-title {
        font-size: 1.5em;
        color: #2563eb;
        margin: 20px 15px 10px 15px;
        font-weight: 700;
      }

      .page-vip666__game-description {
        font-size: 0.95em;
        color: #64748b;
        padding: 0 20px 20px 20px;
        flex-grow: 1;
      }

      .page-vip666__promotions-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 25px;
        margin-top: 40px;
      }

      .page-vip666__promo-card {
        background-color: #ffffff;
        border-radius: 15px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
        overflow: hidden;
        text-align: center;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        display: flex;
        flex-direction: column;
      }

      .page-vip666__promo-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
      }

      .page-vip666__promo-image {
        width: 100%;
        height: 220px;
        object-fit: cover;
        display: block;
      }

      .page-vip666__promo-title {
        font-size: 1.4em;
        color: #2563eb;
        margin: 20px 15px 10px 15px;
        font-weight: 700;
      }

      .page-vip666__promo-description {
        font-size: 0.95em;
        color: #64748b;
        padding: 0 20px 20px 20px;
        flex-grow: 1;
      }

      .page-vip666__features-list {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
        margin-top: 40px;
      }

      .page-vip666__feature-item {
        background-color: #ffffff;
        border-radius: 15px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
        padding: 30px;
        text-align: center;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
      }

      .page-vip666__feature-item:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
      }

      .page-vip666__feature-icon {
        font-size: 3em;
        color: #2563eb;
        margin-bottom: 15px;
      }

      .page-vip666__feature-title {
        font-size: 1.3em;
        color: #2563eb;
        margin-bottom: 10px;
        font-weight: 700;
      }

      .page-vip666__feature-description {
        font-size: 0.95em;
        color: #64748b;
      }

      .page-vip666__faq-list {
        margin-top: 40px;
        border-top: 1px solid #e0e0e0;
      }

      .page-vip666__faq-item {
        background-color: #ffffff;
        border-bottom: 1px solid #e0e0e0;
        transition: background-color 0.3s ease;
      }

      .page-vip666__faq-item:hover {
        background-color: #f0f8ff;
      }

      .page-vip666__faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px 15px;
        font-size: 1.15em;
        color: #2563eb;
        font-weight: 600;
        cursor: pointer;
        user-select: none;
      }

      .page-vip666__faq-question h3 {
        margin: 0;
        pointer-events: none; /* Prevent h3 from blocking click event */
        color: #2563eb;
        font-weight: 600;
      }

      .page-vip666__faq-toggle {
        font-size: 1.5em;
        line-height: 1;
        pointer-events: none; /* Prevent toggle from blocking click event */
        color: #64748b;
        transition: transform 0.3s ease;
      }

      .page-vip666__faq-item.active .page-vip666__faq-toggle {
        transform: rotate(45deg);
      }

      .page-vip666__faq-answer {
        max-height: 0;
        overflow: hidden;
        padding: 0 15px;
        color: #64748b;
        font-size: 1em;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
        opacity: 0;
      }

      .page-vip666__faq-item.active .page-vip666__faq-answer {
        max-height: 2000px !important; /* Sufficiently large */
        padding: 20px 15px !important;
        opacity: 1;
      }

      .page-vip666__cta-section {
        text-align: center;
        padding: 60px 20px;
        background-color: #2563eb;
        color: #ffffff;
      }

      .page-vip666__cta-section-title {
        font-size: 2.2em;
        color: #ffffff;
        margin-bottom: 15px;
        font-weight: 700;
      }

      .page-vip666__cta-section-description {
        font-size: 1.1em;
        max-width: 700px;
        margin: 0 auto 30px auto;
        color: #f0f0f0;
      }

      .page-vip666 img {
        max-width: 100%;
        height: auto;
        display: block;
      }

      .page-vip666 video {
        max-width: 100%;
        width: 100%;
        height: auto;
        display: block;
      }

      .page-vip666__video-container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        box-sizing: border-box;
      }

      .page-vip666__video-wrapper {
        position: relative;
        padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
        height: 0;
        overflow: hidden;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
      }

      .page-vip666__video-wrapper video {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        cursor: pointer;
      }

      /* Responsive styles */
      @media (max-width: 1024px) {
        .page-vip666__section-title {
          font-size: 2.2em;
        }
        .page-vip666__hero-title {
          font-size: clamp(1.8em, 4vw, 2.8em);
        }
        .page-vip666__hero-subtitle {
          font-size: clamp(0.9em, 2vw, 1.2em);
        }
        .page-vip666__games-grid {
          grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        }
        .page-vip666__promotions-grid {
          grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        }
        .page-vip666__features-list {
          grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        }
      }

      @media (max-width: 768px) {
        .page-vip666 {
          font-size: 16px;
          line-height: 1.6;
        }

        .page-vip666__section {
          padding: 30px 15px;
        }

        .page-vip666__section-title {
          font-size: 2em;
        }

        .page-vip666__section-description {
          font-size: 1em;
          margin-bottom: 30px;
        }

        .page-vip666__hero-section {
          padding: 40px 15px;
          padding-top: 10px !important;
        }

        .page-vip666__hero-title {
          font-size: clamp(1.6em, 7vw, 2.5em);
        }

        .page-vip666__hero-subtitle {
          font-size: clamp(0.9em, 3.5vw, 1.1em);
        }

        .page-vip666__cta-buttons {
          flex-direction: column;
          gap: 15px;
        }

        .page-vip666__btn-primary,
        .page-vip666__btn-secondary {
          width: 100% !important;
          max-width: 100% !important;
          padding: 12px 20px;
          font-size: 1em;
          white-space: normal !important;
          word-wrap: break-word !important;
        }

        .page-vip666__floating-login {
          bottom: 15px;
          right: 15px;
          font-size: 0.9em;
          padding: 10px 20px;
          max-width: 200px;
        }

        .page-vip666__games-grid,
        .page-vip666__promotions-grid,
        .page-vip666__features-list {
          grid-template-columns: 1fr;
          gap: 20px;
          margin-top: 30px;
        }

        .page-vip666__game-card,
        .page-vip666__promo-card,
        .page-vip666__feature-item {
          padding: 20px;
          max-width: 100% !important;
          width: 100% !important;
          box-sizing: border-box !important;
        }

        .page-vip666__game-image,
        .page-vip666__promo-image {
          height: 180px;
        }

        .page-vip666__game-title,
        .page-vip666__promo-title {
          font-size: 1.3em;
        }

        .page-vip666__faq-question {
          font-size: 1em;
          padding: 15px 10px;
        }

        .page-vip666__faq-answer {
          padding: 15px 10px !important;
          font-size: 0.95em;
        }

        .page-vip666__cta-section-title {
          font-size: 1.8em;
        }

        .page-vip666__cta-section-description {
          font-size: 1em;
        }

        .page-vip666 img {
          max-width: 100% !important;
          width: 100% !important;
          height: auto !important;
          box-sizing: border-box !important;
        }

        .page-vip666 video {
          max-width: 100% !important;
          width: 100% !important;
          height: auto !important;
          box-sizing: border-box !important;
        }

        .page-vip666__video-container,
        .page-vip666__video-wrapper {
          max-width: 100% !important;
          width: 100% !important;
          box-sizing: border-box !important;
          padding-left: 15px;
          padding-right: 15px;
          overflow: hidden !important;
        }

        .page-vip666__video-section {
          padding-top: 10px !important;
        }

        .page-vip666__faq-item {
          box-sizing: border-box !important;
          width: 100% !important;
          max-width: 100% !important;
        }
      }