/* style/hello88.css */
        :root {
            --primary-color: #2563eb;
            --secondary-color: #64748b;
            --text-dark: #1a202c;
            --text-light: #ffffff;
            --bg-light: #f8f9fa;
            --bg-dark: #1a202c;
        }

        body {
            font-family: 'Arial', sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
            background-color: var(--bg-light);
        }

        .page-hello88 {
            max-width: 100%;
            overflow-x: hidden;
            box-sizing: border-box;
        }

        .page-hello88__hero-section {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            padding: 10px 20px 60px 20px; /* body已承担header-offset，此处仅装饰性顶距 */
            background-color: var(--bg-dark);
            color: var(--text-light);
            overflow: hidden;
        }

        .page-hello88__hero-image-container {
            width: 100%;
            max-width: 1200px;
            margin-bottom: 30px;
            border-radius: 10px;
            overflow: hidden;
        }

        .page-hello88__hero-image {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            border-radius: 10px;
        }

        .page-hello88__hero-content {
            max-width: 900px;
            z-index: 1;
        }

        .page-hello88__main-title {
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            color: var(--text-light);
        }

        .page-hello88__subtitle {
            font-size: 1.25rem;
            margin-bottom: 30px;
            color: rgba(255, 255, 255, 0.9);
        }

        .page-hello88__cta-button {
            display: inline-block;
            background-color: var(--primary-color);
            color: var(--text-light);
            padding: 15px 30px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            transition: background-color 0.3s ease, transform 0.3s ease;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            border: none;
            cursor: pointer;
            font-size: 1rem;
        }

        .page-hello88__cta-button:hover {
            background-color: #1e52cc;
            transform: translateY(-2px);
        }

        .page-hello88__floating-login-btn {
            position: fixed;
            bottom: 20px;
            right: 20px;
            background-color: var(--primary-color);
            color: var(--text-light);
            padding: 12px 25px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1rem;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
            z-index: 1000;
            transition: transform 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            line-height: 1.2;
        }

        .page-hello88__floating-login-btn:hover {
            transform: scale(1.05);
        }

        .page-hello88__section {
            padding: 60px 20px;
            max-width: 1200px;
            margin: 0 auto;
            box-sizing: border-box;
        }

        .page-hello88__section--dark {
            background-color: var(--bg-dark);
            color: var(--text-light);
        }

        .page-hello88__section-title {
            font-size: 2.5rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 40px;
            color: var(--text-dark);
        }

        .page-hello88__section--dark .page-hello88__section-title {
            color: var(--text-light);
        }

        .page-hello88__text-block p {
            margin-bottom: 15px;
            font-size: 1.1rem;
            line-height: 1.7;
        }

        .page-hello88__text-block ul {
            list-style: disc inside;
            margin-bottom: 15px;
            padding-left: 20px;
        }

        .page-hello88__text-block li {
            margin-bottom: 8px;
            font-size: 1.1rem;
        }

        .page-hello88__game-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .page-hello88__game-card {
            background-color: #ffffff;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
            color: var(--text-dark);
        }

        .page-hello88__section--dark .page-hello88__game-card {
            background-color: #2c3e50;
            color: var(--text-light);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
        }

        .page-hello88__game-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
        }

        .page-hello88__game-card-image {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }

        .page-hello88__game-card-content {
            padding: 25px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .page-hello88__game-card-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--primary-color);
        }

        .page-hello88__section--dark .page-hello88__game-card-title {
            color: #87ceeb; /* Lighter shade for dark background */
        }

        .page-hello88__game-card-description {
            font-size: 1rem;
            margin-bottom: 20px;
            flex-grow: 1;
        }

        .page-hello88__game-card-link {
            display: inline-block;
            background-color: var(--primary-color);
            color: var(--text-light);
            padding: 10px 20px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
            font-size: 0.95rem;
            text-align: center;
        }

        .page-hello88__game-card-link:hover {
            background-color: #1e52cc;
        }

        .page-hello88__promo-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .page-hello88__promo-card {
            background-color: #ffffff;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            color: var(--text-dark);
        }

        .page-hello88__section--dark .page-hello88__promo-card {
            background-color: #2c3e50;
            color: var(--text-light);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
        }

        .page-hello88__promo-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
        }

        .page-hello88__promo-card-image {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

        .page-hello88__promo-card-content {
            padding: 20px;
        }

        .page-hello88__promo-card-title {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--primary-color);
        }

        .page-hello88__section--dark .page-hello88__promo-card-title {
            color: #87ceeb;
        }

        .page-hello88__promo-card-description {
            font-size: 0.95rem;
            margin-bottom: 15px;
        }

        .page-hello88__promo-card-link {
            display: inline-block;
            background-color: var(--secondary-color);
            color: var(--text-light);
            padding: 8px 18px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 500;
            font-size: 0.9rem;
        }

        .page-hello88__promo-card-link:hover {
            background-color: #5a687a;
        }

        .page-hello88__guide-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-top: 40px;
            counter-reset: step-counter;
        }

        .page-hello88__guide-step {
            background-color: #ffffff;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.07);
            padding: 30px;
            text-align: center;
            position: relative;
            color: var(--text-dark);
        }

        .page-hello88__section--dark .page-hello88__guide-step {
            background-color: #2c3e50;
            color: var(--text-light);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .page-hello88__guide-step::before {
            counter-increment: step-counter;
            content: counter(step-counter);
            position: absolute;
            top: -15px;
            left: 50%;
            transform: translateX(-50%);
            background-color: var(--primary-color);
            color: var(--text-light);
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            border: 3px solid var(--bg-light);
        }

        .page-hello88__section--dark .page-hello88__guide-step::before {
            border-color: var(--bg-dark);
        }

        .page-hello88__guide-step-title {
            font-size: 1.3rem;
            font-weight: 600;
            margin-top: 15px;
            margin-bottom: 15px;
            color: var(--primary-color);
        }

        .page-hello88__section--dark .page-hello88__guide-step-title {
            color: #87ceeb;
        }

        .page-hello88__app-download {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 30px;
            margin-top: 40px;
        }

        .page-hello88__app-qr-code {
            width: 200px;
            height: 200px;
            object-fit: contain;
            border: 5px solid var(--primary-color);
            border-radius: 10px;
        }

        .page-hello88__download-buttons {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .page-hello88__download-button {
            display: flex;
            align-items: center;
            gap: 10px;
            background-color: var(--primary-color);
            color: var(--text-light);
            padding: 12px 25px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            transition: background-color 0.3s ease, transform 0.3s ease;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .page-hello88__download-button:hover {
            background-color: #1e52cc;
            transform: translateY(-2px);
        }

        .page-hello88__download-button-icon {
            width: 24px;
            height: 24px;
            object-fit: contain;
        }

        .page-hello88__faq-list {
            margin-top: 40px;
        }

        .page-hello88__faq-item {
            background-color: #ffffff;
            border-radius: 10px;
            margin-bottom: 15px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            overflow: hidden;
            color: var(--text-dark);
        }

        .page-hello88__section--dark .page-hello88__faq-item {
            background-color: #2c3e50;
            color: var(--text-light);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
        }

        .page-hello88__faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 25px;
            font-size: 1.15rem;
            font-weight: 600;
            cursor: pointer;
            user-select: none;
            background-color: #f0f0f0;
            color: var(--primary-color);
            border-bottom: 1px solid #e0e0e0;
        }

        .page-hello88__section--dark .page-hello88__faq-question {
            background-color: #3b506b;
            color: #87ceeb;
            border-bottom-color: #4a627a;
        }

        .page-hello88__faq-question:hover {
            background-color: #e6e6e6;
        }

        .page-hello88__section--dark .page-hello88__faq-question:hover {
            background-color: #4a627a;
        }

        .page-hello88__faq-question h3 {
            margin: 0;
            font-size: 1.15rem;
            flex-grow: 1;
            text-align: left;
            pointer-events: none; /* Prevent h3 from blocking click */
        }

        .page-hello88__faq-toggle {
            font-size: 1.5rem;
            font-weight: 700;
            margin-left: 15px;
            pointer-events: none; /* Prevent toggle from blocking click */
        }

        .page-hello88__faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 25px;
            opacity: 0;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
            font-size: 1rem;
            color: var(--text-dark);
        }

        .page-hello88__section--dark .page-hello88__faq-answer {
            color: var(--text-light);
        }

        .page-hello88__faq-item.active .page-hello88__faq-answer {
            max-height: 2000px !important; /* Sufficiently large to show content */
            padding: 20px 25px !important;
            opacity: 1;
        }

        .page-hello88__why-choose-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .page-hello88__why-choose-item {
            background-color: #ffffff;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.07);
            padding: 30px;
            text-align: center;
            color: var(--text-dark);
        }

        .page-hello88__section--dark .page-hello88__why-choose-item {
            background-color: #2c3e50;
            color: var(--text-light);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .page-hello88__why-choose-icon {
            width: 80px;
            height: 80px;
            margin-bottom: 20px;
            object-fit: contain;
        }

        .page-hello88__why-choose-title {
            font-size: 1.4rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--primary-color);
        }

        .page-hello88__section--dark .page-hello88__why-choose-title {
            color: #87ceeb;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .page-hello88 {
                font-size: 16px;
                line-height: 1.6;
                padding: 0 10px; /* Adjust page padding for mobile */
            }

            .page-hello88__hero-section {
                padding: 10px 15px 40px 15px;
            }

            .page-hello88__main-title {
                font-size: 2rem;
            }

            .page-hello88__subtitle {
                font-size: 1rem;
            }

            .page-hello88__cta-button {
                width: 100% !important;
                max-width: 300px !important;
                box-sizing: border-box !important;
                padding: 12px 20px !important;
                font-size: 1rem !important;
                white-space: normal !important;
                word-wrap: break-word !important;
            }

            .page-hello88__floating-login-btn {
                bottom: 15px;
                right: 15px;
                padding: 10px 20px;
                font-size: 1rem;
                max-width: calc(100% - 30px) !important;
                width: auto !important;
                box-sizing: border-box !important;
            }

            .page-hello88__section {
                padding: 40px 15px;
                width: 100% !important;
                max-width: 100% !important;
                box-sizing: border-box !important;
            }

            .page-hello88__section-title {
                font-size: 2rem;
                margin-bottom: 30px;
            }

            .page-hello88__text-block p,
            .page-hello88__text-block li {
                font-size: 1rem;
            }

            .page-hello88__game-grid,
            .page-hello88__promo-grid,
            .page-hello88__guide-steps,
            .page-hello88__why-choose-list {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .page-hello88__game-card-title,
            .page-hello88__promo-card-title,
            .page-hello88__guide-step-title,
            .page-hello88__why-choose-title {
                font-size: 1.2rem;
            }

            .page-hello88__game-card-image,
            .page-hello88__promo-card-image {
                height: 160px;
            }

            .page-hello88__faq-question {
                padding: 15px 20px;
                font-size: 1.05rem;
            }

            .page-hello88__faq-question h3 {
                font-size: 1.05rem;
            }

            .page-hello88__faq-answer {
                padding: 15px 20px !important;
            }

            .page-hello88__download-buttons {
                flex-direction: column;
                gap: 15px;
            }

            .page-hello88__download-button {
                width: 100% !important;
                max-width: 300px !important;
                box-sizing: border-box !important;
                padding: 12px 20px !important;
                font-size: 1rem !important;
                white-space: normal !important;
                word-wrap: break-word !important;
            }
            .page-hello88 img {
                max-width: 100% !important;
                width: 100% !important;
                height: auto !important;
                display: block !important;
            }
            .page-hello88__hero-image-container, .page-hello88__game-card, .page-hello88__promo-card, .page-hello88__guide-step, .page-hello88__why-choose-item, .page-hello88__faq-item, .page-hello88__app-download {
                max-width: 100% !important;
                width: 100% !important;
                box-sizing: border-box !important;
            }
            .page-hello88__text-block ul, .page-hello88__text-block ol {
                padding-left: 0 !important;
                margin-left: 0 !important;
                width: 100% !important;
                max-width: 100% !important;
                box-sizing: border-box !important;
            }
            .page-hello88__text-block li {
                width: 100% !important;
                max-width: 100% !important;
                box-sizing: border-box !important;
                word-wrap: break-word !important;
                overflow-wrap: break-word !important;
                word-break: break-word !important;
                margin-left: 0 !important;
                margin-right: 0 !important;
            }
        }