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

/* Body padding handled by shared.css: body { padding-top: var(--header-offset); } */

.page-partners {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-main); /* Assuming body background is dark, use light text */
    background-color: var(--background-color); /* From custom colors #08160F */
}

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

/* Hero Section */
.page-partners__hero-section {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    padding-top: 10px; /* Small top padding, header offset handled by body */
    text-align: center;
    background-color: var(--background-color);
    overflow: hidden;
}

.page-partners__hero-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.page-partners__hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
    /* filter: brightness(0.6); -- Removed as per instruction: "禁止使用CSS filter改变图片颜色" */
}

.page-partners__hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    color: var(--text-main);
}

.page-partners__main-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem); /* Using clamp as requested */
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-main);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.page-partners__description {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: var(--text-secondary);
}

.page-partners__cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap; /* Ensure buttons wrap on small screens */
}

.page-partners__btn-primary,
.page-partners__btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    max-width: 100%; /* For button responsive */
    box-sizing: border-box; /* For button responsive */
    white-space: normal; /* For button responsive */
    word-wrap: break-word; /* For button responsive */
}

.page-partners__btn-primary {
    background: var(--button-gradient);
    color: var(--text-main); /* White text for dark button */
    border: 2px solid transparent;
}

.page-partners__btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3), 0 0 15px var(--glow-color);
}

.page-partners__btn-secondary {
    background: transparent;
    color: var(--secondary-color); /* Green text for light button */
    border: 2px solid var(--secondary-color);
}

.page-partners__btn-secondary:hover {
    background: var(--secondary-color);
    color: var(--background-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

.page-partners__section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    color: var(--gold-color); /* Using gold for section titles for accent */
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Why Partner Section */
.page-partners__why-partner-section {
    padding: 80px 0;
    background-color: var(--background-color);
    color: var(--text-main);
}

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

.page-partners__feature-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    color: var(--text-main);
}

.page-partners__feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3), 0 0 20px var(--glow-color);
}

.page-partners__feature-icon {
    width: 100%; /* Make images fill card width */
    height: auto;
    margin-bottom: 20px;
    border-radius: 8px; /* Added border-radius to match card style */
    min-width: 200px; /* Enforce min image size */
    min-height: 200px; /* Enforce min image size */
    object-fit: cover;
}

.page-partners__card-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.page-partners__card-text {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Program Models Section */
.page-partners__program-models-section {
    padding: 80px 0;
    background-color: var(--card-bg); /* Slightly lighter dark background for contrast */
    color: var(--text-main);
}

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

.page-partners__model-card {
    background-color: var(--background-color); /* Darker background for model cards */
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    color: var(--text-main);
}

.page-partners__model-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3), 0 0 20px var(--glow-color);
}

.page-partners__benefits-list {
    list-style: none;
    padding: 0;
    margin-top: 20px;
    margin-bottom: 30px;
}

.page-partners__benefits-list li {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    font-size: 1rem;
    color: var(--text-secondary);
}

.page-partners__list-icon {
    color: var(--primary-color);
    margin-right: 10px;
    font-size: 1.2rem;
    font-weight: bold;
}

/* How to Join Section */
.page-partners__how-to-join-section {
    padding: 80px 0;
    background-color: var(--background-color);
    color: var(--text-main);
}

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

.page-partners__step-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    color: var(--text-main);
}

.page-partners__step-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3), 0 0 20px var(--glow-color);
}

.page-partners__step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--button-gradient);
    color: var(--text-main);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.page-partners__cta-bottom {
    text-align: center;
    margin-top: 60px;
}

.page-partners__btn-large {
    padding: 18px 40px;
    font-size: 1.2rem;
}

/* Testimonials Section */
.page-partners__testimonials-section {
    padding: 80px 0;
    background-color: var(--card-bg);
    color: var(--text-main);
}

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

.page-partners__testimonial-card {
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: var(--text-main);
}

.page-partners__testimonial-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 20px;
    border: 3px solid var(--primary-color);
    min-width: 200px; /* Enforce min image size */
    min-height: 200px; /* Enforce min image size */
}

.page-partners__testimonial-text {
    font-style: italic;
    margin-bottom: 15px;
    color: var(--text-secondary);
}

.page-partners__testimonial-author {
    font-weight: 600;
    color: var(--primary-color);
}

/* FAQ Section */
.page-partners__faq-section {
    padding: 80px 0;
    background-color: var(--background-color);
    color: var(--text-main);
}

.page-partners__faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.page-partners__faq-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    color: var(--text-main);
}

.page-partners__faq-item summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    color: var(--primary-color);
    list-style: none; /* Remove default marker */
}

.page-partners__faq-item summary::-webkit-details-marker {
    display: none; /* Remove default marker for Webkit */
}

.page-partners__faq-question {
    flex-grow: 1;
}

.page-partners__faq-toggle {
    font-size: 1.5rem;
    font-weight: bold;
    margin-left: 15px;
    color: var(--gold-color);
}

.page-partners__faq-item[open] .page-partners__faq-toggle {
    content: "−"; /* Changed by JS */
}

.page-partners__faq-answer {
    padding: 0 25px 20px;
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Contact CTA Section */
.page-partners__contact-cta-section {
    padding: 80px 0;
    text-align: center;
    background-color: var(--card-bg);
    color: var(--text-main);
}

/* Responsive styles */
@media (max-width: 1024px) {
    .page-partners__hero-content {
        padding: 0 20px;
    }
}

@media (max-width: 768px) {
    .page-partners__hero-section {
        padding: 40px 15px;
        padding-top: 10px !important;
    }

    .page-partners__main-title {
        font-size: clamp(2rem, 8vw, 2.5rem);
    }

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

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

    .page-partners__btn-primary,
    .page-partners__btn-secondary,
    .page-partners__btn-large {
        width: 100% !important;
        max-width: 100% !important;
        padding: 12px 20px;
        font-size: 1rem;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    .page-partners__section-title {
        font-size: clamp(1.8rem, 7vw, 2.5rem);
        margin-bottom: 40px;
    }

    .page-partners__why-partner-section,
    .page-partners__program-models-section,
    .page-partners__how-to-join-section,
    .page-partners__testimonials-section,
    .page-partners__faq-section,
    .page-partners__contact-cta-section {
        padding: 60px 0;
    }

    .page-partners__feature-card,
    .page-partners__model-card,
    .page-partners__step-card,
    .page-partners__testimonial-card {
        padding: 25px;
    }

    /* Images responsive */
    .page-partners img {
        max-width: 100% !important;
        width: 100% !important; /* Ensure content images take full width */
        height: auto !important;
        display: block !important;
        min-width: 200px !important; /* Ensure min size is kept */
        min-height: 200px !important; /* Ensure min size is kept */
    }

    .page-partners__hero-image {
        min-width: unset !important;
        min-height: unset !important;
    }

    /* Ensure image containers are also responsive */
    .page-partners__container,
    .page-partners__hero-image-wrapper,
    .page-partners__features-grid,
    .page-partners__model-cards,
    .page-partners__steps-grid,
    .page-partners__testimonial-cards,
    .page-partners__faq-list {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        overflow-x: hidden !important; /* Prevent horizontal scroll */
    }
    
    .page-partners__faq-item summary {
        font-size: 1.1rem;
        padding: 15px 20px;
    }

    .page-partners__faq-answer {
        padding: 0 20px 15px;
    }

    /* Content area image size limit */
    .page-partners__feature-icon,
    .page-partners__testimonial-avatar {
        width: 200px !important; /* Explicitly set to min 200px for mobile */
        height: 200px !important; /* Explicitly set to min 200px for mobile */
        margin: 0 auto 20px auto; /* Center small images */
    }
}

@media (max-width: 480px) {
    .page-partners__hero-section {
        padding: 30px 10px;
        padding-top: 10px !important;
    }
    .page-partners__main-title {
        font-size: clamp(1.8rem, 10vw, 2.2rem);
    }
    .page-partners__description {
        font-size: 0.95rem;
    }
    .page-partners__btn-large {
        font-size: 1rem;
    }
}