:root {
    --789cub-win-primary-color: #11A84E;
    --789cub-win-secondary-color: #22C768;
    --789cub-win-bg-color: #08160F;
    --789cub-win-card-bg: #11271B;
    --789cub-win-text-main: #F2FFF6;
    --789cub-win-text-secondary: #A7D9B8;
    --789cub-win-border-color: #2E7A4E;
    --789cub-win-glow-color: #57E38D;
    --789cub-win-gold-color: #F2C14E;
    --789cub-win-divider-color: #1E3A2A;
    --789cub-win-deep-green: #0A4B2C;
    --789cub-win-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
}

.page-index-platform-advantages {
    font-family: 'Arial', sans-serif;
    color: var(--789cub-win-text-main);
    background-color: var(--789cub-win-bg-color); /* Inherited from body in shared.css, but good to define for scope */
    line-height: 1.6;
}

.page-index-platform-advantages__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 10px; /* Small top padding, body handles --header-offset */
    padding-bottom: 60px;
    text-align: center;
    overflow: hidden;
}

.page-index-platform-advantages__hero-image-wrapper {
    width: 100%;
    max-height: 70vh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.page-index-platform-advantages__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    object-position: center;
    min-height: 300px; /* Ensure minimum size */
}

.page-index-platform-advantages__hero-content {
    position: relative;
    z-index: 10;
    max-width: 900px;
    padding: 30px 20px;
    background: rgba(17, 39, 27, 0.85); /* Card BG with transparency */
    border-radius: 10px;
    margin-top: -80px; /* Pull up over image slightly */
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--789cub-win-border-color);
}

.page-index-platform-advantages__main-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    font-weight: 700;
    color: var(--789cub-win-gold-color);
    margin-bottom: 15px;
    line-height: 1.2;
    text-shadow: 0 0 10px rgba(242, 193, 78, 0.5);
}

.page-index-platform-advantages__intro-text {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    color: var(--789cub-win-text-main);
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

.page-index-platform-advantages__btn-primary,
.page-index-platform-advantages__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
    max-width: 100%;
}

.page-index-platform-advantages__btn-primary {
    background: var(--789cub-win-button-gradient);
    color: #ffffff;
    border: 2px solid transparent;
    box-shadow: 0 4px 15px rgba(34, 199, 104, 0.4);
}

.page-index-platform-advantages__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(34, 199, 104, 0.6);
}

.page-index-platform-advantages__btn-secondary {
    background: var(--789cub-win-card-bg);
    color: var(--789cub-win-primary-color);
    border: 2px solid var(--789cub-win-primary-color);
}

.page-index-platform-advantages__btn-secondary:hover {
    background: var(--789cub-win-primary-color);
    color: #ffffff;
    transform: translateY(-3px);
}

.page-index-platform-advantages__section {
    max-width: 1200px;
    margin: 60px auto;
    padding: 0 20px;
    text-align: center;
    box-sizing: border-box;
}

.page-index-platform-advantages__section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    color: var(--789cub-win-gold-color);
    margin-bottom: 20px;
    font-weight: 600;
    text-shadow: 0 0 8px rgba(242, 193, 78, 0.3);
}

.page-index-platform-advantages__section-description {
    font-size: clamp(0.95rem, 1.2vw, 1.1rem);
    color: var(--789cub-win-text-secondary);
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-index-platform-advantages__advantage-grid,
.page-index-platform-advantages__category-grid,
.page-index-platform-advantages__steps-container,
.page-index-platform-advantages__responsible-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.page-index-platform-advantages__card {
    background: var(--789cub-win-card-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--789cub-win-divider-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: var(--789cub-win-text-main);
}

.page-index-platform-advantages__card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.page-index-platform-advantages__card-icon,
.page-index-platform-advantages__category-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 20px;
    min-width: 200px;
    min-height: 200px;
}

.page-index-platform-advantages__card-title,
.page-index-platform-advantages__category-title,
.page-index-platform-advantages__step-title,
.page-index-platform-advantages__feature-title {
    font-size: 1.5rem;
    color: var(--789cub-win-primary-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.page-index-platform-advantages__card-text,
.page-index-platform-advantages__category-text,
.page-index-platform-advantages__step-text,
.page-index-platform-advantages__feature-text {
    font-size: 1rem;
    color: var(--789cub-win-text-secondary);
}

.page-index-platform-advantages__category-card {
    text-decoration: none;
}

.page-index-platform-advantages__view-all-games,
.page-index-platform-advantages__register-cta,
.page-index-platform-advantages__responsible-cta,
.page-index-platform-advantages__final-cta {
    margin-top: 50px;
}

.page-index-platform-advantages__step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 30px;
}

.page-index-platform-advantages__step-number {
    width: 60px;
    height: 60px;
    background: var(--789cub-win-primary-color);
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    box-shadow: 0 0 15px rgba(34, 199, 104, 0.6);
}

.page-index-platform-advantages__faq-list {
    margin-top: 30px;
    text-align: left;
}

.page-index-platform-advantages__faq-item {
    margin-bottom: 15px;
    border: 1px solid var(--789cub-win-divider-color);
    border-radius: 10px;
    overflow: hidden;
    background: var(--789cub-win-card-bg);
}

.page-index-platform-advantages__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--789cub-win-text-main);
    cursor: pointer;
    background: rgba(var(--789cub-win-primary-color-rgb), 0.1);
    border-bottom: 1px solid var(--789cub-win-divider-color);
    transition: background-color 0.3s ease;
    list-style: none; /* For details/summary */
}

.page-index-platform-advantages__faq-question::-webkit-details-marker {
    display: none;
}

.page-index-platform-advantages__faq-question:hover {
    background-color: rgba(var(--789cub-win-primary-color-rgb), 0.2);
}

.page-index-platform-advantages__faq-toggle {
    font-size: 1.8rem;
    line-height: 1;
    transition: transform 0.3s ease;
    color: var(--789cub-win-primary-color);
}

.page-index-platform-advantages__faq-item[open] .page-index-platform-advantages__faq-toggle {
    transform: rotate(45deg);
}

.page-index-platform-advantages__faq-answer {
    padding: 20px 25px;
    font-size: 1rem;
    color: var(--789cub-win-text-secondary);
    line-height: 1.7;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-index-platform-advantages__hero-content {
        margin-top: -60px;
        padding: 25px 15px;
    }
    .page-index-platform-advantages__main-title {
        font-size: clamp(2rem, 4.5vw, 3rem);
    }
    .page-index-platform-advantages__intro-text {
        font-size: clamp(0.9rem, 1.4vw, 1.15rem);
    }
    .page-index-platform-advantages__section-title {
        font-size: clamp(1.6rem, 3.8vw, 2.5rem);
    }
    .page-index-platform-advantages__advantage-grid,
    .page-index-platform-advantages__category-grid,
    .page-index-platform-advantages__steps-container,
    .page-index-platform-advantages__responsible-features {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .page-index-platform-advantages__hero-section {
        padding-bottom: 40px;
    }
    .page-index-platform-advantages__hero-image {
        min-height: 250px;
    }
    .page-index-platform-advantages__hero-content {
        margin-top: -40px;
        padding: 20px 15px;
    }
    .page-index-platform-advantages__main-title {
        font-size: 2.2rem;
    }
    .page-index-platform-advantages__intro-text {
        font-size: 0.95rem;
    }
    .page-index-platform-advantages__cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    .page-index-platform-advantages__btn-primary,
    .page-index-platform-advantages__btn-secondary {
        padding: 12px 20px;
        font-size: 1rem;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    .page-index-platform-advantages__section {
        margin: 40px auto;
        padding: 0 15px;
    }
    .page-index-platform-advantages__section-title {
        font-size: 2rem;
    }
    .page-index-platform-advantages__section-description {
        font-size: 0.9rem;
    }
    .page-index-platform-advantages__advantage-grid,
    .page-index-platform-advantages__category-grid,
    .page-index-platform-advantages__steps-container,
    .page-index-platform-advantages__responsible-features {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .page-index-platform-advantages__card {
        padding: 25px;
    }
    .page-index-platform-advantages__card-icon,
    .page-index-platform-advantages__category-image {
        height: 180px;
        min-width: 200px !important;
        min-height: 180px !important;
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    .page-index-platform-advantages__card-title,
    .page-index-platform-advantages__category-title,
    .page-index-platform-advantages__step-title,
    .page-index-platform-advantages__feature-title {
        font-size: 1.3rem;
    }
    .page-index-platform-advantages__card-text,
    .page-index-platform-advantages__category-text,
    .page-index-platform-advantages__step-text,
    .page-index-platform-advantages__feature-text {
        font-size: 0.9rem;
    }
    .page-index-platform-advantages__faq-question {
        font-size: 1.1rem;
        padding: 15px 20px;
    }
    .page-index-platform-advantages__faq-answer {
        padding: 15px 20px;
        font-size: 0.9rem;
    }
    /* Mobile image and video responsive rules */
    .page-index-platform-advantages img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
    }
    .page-index-platform-advantages__section,
    .page-index-platform-advantages__card,
    .page-index-platform-advantages__container,
    .page-index-platform-advantages__cta-buttons,
    .page-index-platform-advantages__button-group,
    .page-index-platform-advantages__btn-container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow: hidden !important;
    }
    .page-index-platform-advantages__video-section {
        padding-top: 10px !important; /* body 已承担 --header-offset，此处禁止 var(--header-offset) */
    }
    .page-index-platform-advantages__cta-buttons {
        flex-wrap: wrap !important;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .page-index-platform-advantages__main-title {
        font-size: 1.8rem;
    }
    .page-index-platform-advantages__section-title {
        font-size: 1.6rem;
    }
    .page-index-platform-advantages__hero-content {
        margin-top: -30px;
    }
    .page-index-platform-advantages__card-icon,
    .page-index-platform-advantages__category-image {
        height: 150px;
        min-width: 150px !important;
        min-height: 150px !important;
    }
    .page-index-platform-advantages__step-number {
        width: 50px;
        height: 50px;
        font-size: 1.8rem;
    }
}