:root {
    --primary-color: #FF8C1A;
    --secondary-color: #FFA53A;
    --background-color: #0D0E12;
    --card-bg-color: #17191F;
    --text-main-color: #FFF3E6;
    --border-color: #A84F0C;
    --glow-color: #FFB04D;
    --deep-orange-color: #D96800;
}

.page-support {
    font-family: Arial, sans-serif;
    color: var(--text-main-color); /* Main text color for the page */
    background-color: var(--background-color); /* Main background color */
    line-height: 1.6;
}

.page-support__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Hero Section */
.page-support__hero-section {
    position: relative;
    padding-top: 10px; /* Small top padding, relying on body for header offset */
    color: var(--text-main-color);
    overflow: hidden;
    display: flex;
    flex-direction: column; /* Ensure image is above content */
    align-items: center;
    text-align: center;
    background: var(--background-color);
}

.page-support__hero-image-wrapper {
    width: 100%;
    max-height: 500px; /* Limit height for hero image */
    overflow: hidden;
    margin-bottom: 20px; /* Space between image and content */
}

.page-support__hero-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    object-position: center;
}

.page-support__hero-content {
    max-width: 800px;
    padding: 0 20px 40px;
}

.page-support__main-title {
    font-size: 3em;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(255, 140, 26, 0.5);
}

.page-support__description {
    font-size: 1.1em;
    margin-bottom: 30px;
    color: var(--text-main-color);
}

.page-support__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
    width: 100%; /* Ensure container fills width for responsive buttons */
    max-width: 600px; /* Limit button group width */
    margin-left: auto;
    margin-right: auto;
}

.page-support__btn-primary,
.page-support__btn-secondary,
.page-support__btn-tertiary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    max-width: 100%; /* Important for mobile responsiveness */
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-support__btn-primary {
    background: linear-gradient(180deg, var(--secondary-color) 0%, var(--deep-orange-color) 100%);
    color: #ffffff;
    border: none;
}

.page-support__btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3), 0 0 20px var(--glow-color);
}

.page-support__btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.page-support__btn-secondary:hover {
    background: var(--primary-color);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-support__btn-tertiary {
    background: var(--card-bg-color);
    color: var(--primary-color);
    border: 1px solid var(--border-color);
    padding: 10px 20px;
    font-size: 1em;
}

.page-support__btn-tertiary:hover {
    background: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
}


/* FAQ Section */
.page-support__faq-section {
    padding: 60px 0;
    background-color: var(--card-bg-color); /* Darker background for FAQ */
    color: var(--text-main-color);
}

.page-support__section-title {
    font-size: 2.5em;
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
    color: var(--primary-color);
    text-shadow: 0 0 8px rgba(255, 140, 26, 0.3);
}

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

details.page-support__faq-item {
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  background: var(--background-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}
details.page-support__faq-item summary.page-support__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
  color: var(--text-main-color);
}
details.page-support__faq-item summary.page-support__faq-question::-webkit-details-marker {
  display: none;
}
details.page-support__faq-item summary.page-support__faq-question:hover {
  background: rgba(var(--primary-color), 0.1);
}
.page-support__faq-qtext {
  flex: 1;
  font-size: 1.1em;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--text-main-color);
}
.page-support__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  color: var(--primary-color);
  flex-shrink: 0;
  margin-left: 15px;
  width: 30px;
  text-align: center;
}
details.page-support__faq-item .page-support__faq-answer {
  padding: 0 25px 20px;
  background: var(--background-color);
  border-top: 1px solid var(--border-color);
  border-radius: 0 0 8px 8px;
  color: var(--text-main-color);
}
.page-support__faq-answer p {
    margin-bottom: 0;
}
.page-support__faq-answer a {
    color: var(--secondary-color);
    text-decoration: none;
}
.page-support__faq-answer a:hover {
    text-decoration: underline;
}

/* Guide Section */
.page-support__guide-section {
    padding: 60px 0;
    background-color: var(--background-color);
    color: var(--text-main-color);
}

.page-support__guide-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.page-support__guide-card {
    background-color: var(--card-bg-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    text-align: center;
    padding-bottom: 25px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.page-support__guide-image {
    width: 100%;
    height: 200px; /* Fixed height for consistency */
    object-fit: cover;
    display: block;
    margin-bottom: 20px;
}

.page-support__card-title {
    font-size: 1.5em;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--primary-color);
    padding: 0 20px;
}

.page-support__card-description {
    font-size: 0.95em;
    color: var(--text-main-color);
    padding: 0 20px 20px;
    flex-grow: 1;
}

/* Contact Promo Section */
.page-support__contact-promo-section {
    padding: 80px 0;
    background-color: var(--card-bg-color); /* Darker background */
    color: var(--text-main-color);
}

.page-support__contact-promo-section .page-support__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.page-support__contact-content {
    flex: 1;
    text-align: left;
}

.page-support__contact-content .page-support__section-title {
    text-align: left;
    margin-bottom: 20px;
}

.page-support__contact-content .page-support__description {
    margin-bottom: 30px;
}

.page-support__contact-image-wrapper {
    flex: 1;
    max-width: 50%;
    text-align: right;
}

.page-support__contact-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 10px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}


/* --- Responsive Styles --- */

/* Generic image and container responsiveness */
.page-support img {
    max-width: 100%;
    height: auto;
    display: block;
}
.page-support__container,
.page-support__cta-buttons,
.page-support__faq-list,
.page-support__guide-grid,
.page-support__contact-promo-section .page-support__container {
    width: 100%;
    max-width: 1200px; /* Ensure max-width is defined for desktop */
    box-sizing: border-box;
    overflow: hidden; /* Prevent content overflow */
}

/* Medium screens (e.g., tablets) */
@media (max-width: 1024px) {
    .page-support__main-title {
        font-size: 2.5em;
    }
    .page-support__section-title {
        font-size: 2em;
    }
    .page-support__description {
        font-size: 1em;
    }
    .page-support__hero-image-wrapper {
        max-height: 400px;
    }
    .page-support__cta-buttons {
        flex-direction: column;
        gap: 15px;
        max-width: 400px;
    }
    .page-support__guide-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    .page-support__contact-promo-section .page-support__container {
        flex-direction: column;
        text-align: center;
    }
    .page-support__contact-content {
        text-align: center;
    }
    .page-support__contact-content .page-support__section-title {
        text-align: center;
    }
    .page-support__contact-image-wrapper {
        max-width: 80%;
    }
}

/* Small screens (e.g., mobile phones) - @media (max-width: 768px)必写清单 */
@media (max-width: 768px) {
    /* 1. Hero Section */
    .page-support__hero-section {
        padding-top: 10px !important; /* Small top padding, relying on body for header offset */
    }
    .page-support__hero-image-wrapper {
        max-height: 250px !important;
    }
    .page-support__main-title {
        font-size: 1.8em !important;
        margin-bottom: 15px !important;
    }
    .page-support__description {
        font-size: 0.95em !important;
        margin-bottom: 20px !important;
    }
    .page-support__hero-content {
        padding: 0 15px 30px !important;
    }
    
    /* 2. CTA Buttons (general) */
    .page-support__cta-buttons,
    .page-support__button-group,
    .page-support__btn-container {
        flex-direction: column !important;
        gap: 15px !important;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
        overflow: hidden !important;
    }
    .page-support__btn-primary,
    .page-support__btn-secondary,
    .page-support__btn-tertiary,
    .page-support a[class*="button"],
    .page-support a[class*="btn"] {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        padding: 12px 20px !important;
        font-size: 1em !important;
    }

    /* 3. FAQ Section */
    .page-support__faq-section {
        padding: 40px 0 !important;
    }
    .page-support__section-title {
        font-size: 1.8em !important;
        margin-bottom: 30px !important;
        padding: 0 15px;
    }
    .page-support__faq-list {
        padding: 0 15px !important;
    }
    details.page-support__faq-item summary.page-support__faq-question { 
        padding: 15px !important; 
    }
    .page-support__faq-qtext { 
        font-size: 1em !important; 
    }
    .page-support__faq-toggle {
        font-size: 24px !important;
        width: 24px !important;
        margin-left: 10px !important;
    }
    details.page-support__faq-item .page-support__faq-answer {
        padding: 0 15px 15px !important;
    }

    /* 4. Guide Section */
    .page-support__guide-section {
        padding: 40px 0 !important;
    }
    .page-support__guide-grid {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
        padding: 0 15px !important;
    }
    .page-support__guide-card {
        padding-bottom: 15px !important;
    }
    .page-support__guide-image {
        height: 180px !important;
    }
    .page-support__card-title {
        font-size: 1.3em !important;
        padding: 0 15px !important;
    }
    .page-support__card-description {
        font-size: 0.9em !important;
        padding: 0 15px 15px !important;
    }

    /* 5. Contact Promo Section */
    .page-support__contact-promo-section {
        padding: 50px 0 !important;
    }
    .page-support__contact-promo-section .page-support__container {
        flex-direction: column !important;
        padding: 0 15px !important;
    }
    .page-support__contact-content {
        text-align: center !important;
    }
    .page-support__contact-content .page-support__section-title {
        text-align: center !important;
        font-size: 1.8em !important;
    }
    .page-support__contact-content .page-support__description {
        font-size: 0.95em !important;
    }
    .page-support__contact-image-wrapper {
        max-width: 100% !important;
        margin-top: 30px !important;
    }
    .page-support__contact-image {
        border-radius: 8px !important;
    }

    /* 6. Generic image and container responsiveness */
    .page-support img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    .page-support__container,
    .page-support__section,
    .page-support__card,
    .page-support__box {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
}