/* General styles for the help center page */
.page-support {
    font-family: 'Arial', sans-serif;
    color: #333333; /* Text Main */
    background: #F5F7FA; /* Background */
    line-height: 1.6;
    padding-bottom: 40px;
}

/* Hero Section */
.page-support__hero-section {
    position: relative;
    width: 100%;
    padding-top: 10px; /* Small top padding, assuming body has header offset */
    background-color: #E53935; /* Main color */
    color: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding-bottom: 40px;
    overflow: hidden; /* Ensure content doesn't spill */
}

.page-support__hero-image {
    width: 100%;
    max-height: 450px; /* Limit height for hero image */
    overflow: hidden;
    margin-bottom: 20px;
}

.page-support__hero-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover; /* Cover for desktop */
    object-position: center;
}

.page-support__hero-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
    z-index: 1; /* Ensure text is above any potential background elements */
}

.page-support__main-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem); /* Responsive font size */
    font-weight: 700;
    margin-bottom: 15px;
    line-height: 1.2;
    color: #ffffff;
}

.page-support__description {
    font-size: 1.1rem;
    margin-bottom: 30px;
    opacity: 0.9;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-support__search-bar {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    width: 100%;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    background-color: #ffffff;
    border-radius: 50px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-support__search-input {
    flex: 1;
    padding: 15px 25px;
    border: none;
    outline: none;
    font-size: 1rem;
    color: #333333;
}

.page-support__search-input::placeholder {
    color: #888888;
}

.page-support__search-button {
    background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%); /* Button gradient */
    color: #ffffff;
    border: none;
    padding: 15px 30px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.page-support__search-button:hover {
    opacity: 0.9;
}

.page-support__cta-button {
    display: inline-block;
    padding: 15px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    max-width: 100%; /* For responsive buttons */
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-support__btn-primary {
    background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%); /* Button gradient */
    color: #ffffff;
    border: 2px solid transparent;
}

.page-support__btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(229, 57, 53, 0.4);
}

.page-support__btn-secondary {
    background: #ffffff;
    color: #E53935; /* Main color for text */
    border: 2px solid #E53935;
}

.page-support__btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}


/* General Section Styles */
.page-support__section {
    padding: 60px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.page-support__section-title {
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    font-weight: 700;
    color: #333333; /* Text Main */
    text-align: center;
    margin-bottom: 20px;
    line-height: 1.3;
}

.page-support__section-intro {
    font-size: 1.05rem;
    color: #555555;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
}

/* Popular Topics */
.page-support__popular-topics {
    background-color: #ffffff; /* Card BG */
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    margin-top: -80px; /* Overlap with hero for visual effect */
    position: relative;
    z-index: 2;
    padding-top: 80px;
}

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

.page-support__topic-card {
    background-color: #ffffff;
    border: 1px solid #E0E0E0; /* Border */
    border-radius: 8px;
    padding: 25px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
}

.page-support__topic-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.page-support__card-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333333;
}

.page-support__card-title a {
    color: #333333;
    text-decoration: none;
    transition: color 0.3s ease;
}

.page-support__card-title a:hover {
    color: #E53935; /* Main color on hover */
}

.page-support__topic-card p {
    font-size: 0.95rem;
    color: #666666;
    margin-bottom: 20px;
    flex-grow: 1;
}

.page-support__card-link {
    display: inline-block;
    color: #E53935; /* Main color */
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid #E53935;
    padding-bottom: 3px;
    transition: all 0.3s ease;
}

.page-support__card-link:hover {
    color: #FF5A4F; /* Auxiliary color on hover */
    border-color: #FF5A4F;
}

/* Detailed Guides */
.page-support__detailed-guides {
    background-color: #F5F7FA; /* Background */
    padding-top: 80px;
    padding-bottom: 80px;
}

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

.page-support__guide-item {
    background-color: #ffffff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.page-support__guide-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.page-support__guide-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.page-support__guide-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #333333;
    padding: 20px 20px 10px;
    margin-bottom: 0;
}

.page-support__guide-item p {
    font-size: 0.95rem;
    color: #666666;
    padding: 0 20px;
    flex-grow: 1;
    margin-bottom: 15px;
}

.page-support__guide-item p a {
    color: #E53935;
    text-decoration: underline;
}

.page-support__guide-item .page-support__card-link {
    display: block;
    text-align: right;
    padding: 0 20px 20px;
}

/* FAQ Section */
.page-support__faq-section {
    background-color: #ffffff; /* Card BG */
    padding-top: 80px;
    padding-bottom: 80px;
}

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

details.page-support__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid #E0E0E0; /* Border */
  overflow: hidden;
  background: #ffffff; /* Card BG */
}
details.page-support__faq-item summary.page-support__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
  color: #333333;
}
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: #f5f5f5;
}
.page-support__faq-qtext {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #333333;
}
.page-support__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #666666;
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-support__faq-item .page-support__faq-answer {
  padding: 0 20px 20px;
  background: #f9f9f9;
  border-radius: 0 0 5px 5px;
  color: #555555;
}

/* Contact CTA */
.page-support__contact-cta {
    background: linear-gradient(90deg, #E53935 0%, #FF5A4F 100%); /* Custom gradient for section */
    color: #ffffff;
    padding: 80px 20px;
    display: flex;
    align-items: center;
    gap: 40px;
    border-radius: 8px;
    margin-bottom: 40px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

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

.page-support__contact-cta .page-support__section-title {
    color: #ffffff;
    text-align: left;
    margin-bottom: 20px;
}

.page-support__contact-cta .page-support__description {
    color: #ffffff;
    opacity: 0.9;
    text-align: left;
    margin-bottom: 30px;
}

.page-support__cta-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
}

.page-support__contact-image {
    flex-shrink: 0;
    max-width: 50%;
    border-radius: 8px;
    overflow: hidden;
}

.page-support__contact-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* Keyword styling */
.page-support .keyword {
    font-weight: 600;
    text-shadow: 0 0 2px rgba(0,0,0,0.2); /* Subtle shadow for dark background */
}
.page-support__hero-section .keyword,
.page-support__contact-cta .keyword {
    color: #FFD700; /* Yellow for keywords on dark red background */
}
.page-support__popular-topics .keyword,
.page-support__detailed-guides .keyword,
.page-support__faq-section .keyword {
    color: #E53935; /* Main color for keywords on light background */
}


/* Responsive styles */
@media (max-width: 1024px) {
    .page-support__hero-content {
        max-width: 800px;
    }
    .page-support__section {
        padding: 50px 20px;
    }
    .page-support__topic-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    .page-support__guide-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    .page-support__contact-cta {
        flex-direction: column;
        text-align: center;
        padding: 60px 20px;
    }
    .page-support__contact-content {
        text-align: center;
    }
    .page-support__contact-cta .page-support__section-title {
        text-align: center;
    }
    .page-support__contact-cta .page-support__description {
        text-align: center;
    }
    .page-support__contact-image {
        max-width: 80%;
    }
    .page-support__cta-buttons {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    /* HERO 主图区域 */
    .page-support__hero-section {
        padding-top: 10px;
        padding-bottom: 30px;
    }
    .page-support__hero-image {
        max-height: 300px;
    }
    .page-support__hero-image img {
        object-fit: contain !important;
        aspect-ratio: unset !important;
        height: auto !important;
    }
    .page-support__main-title {
        font-size: clamp(1.8rem, 7vw, 2.5rem);
    }
    .page-support__description {
        font-size: 1rem;
        margin-bottom: 20px;
    }
    .page-support__search-bar {
        flex-direction: column;
        border-radius: 10px;
        max-width: 90%;
    }
    .page-support__search-input {
        padding: 12px 20px;
        border-bottom: 1px solid #E0E0E0;
    }
    .page-support__search-button {
        width: 100%;
        padding: 12px 20px;
        border-radius: 0 0 10px 10px;
    }

    /* General Sections */
    .page-support__section {
        padding: 40px 15px;
    }
    .page-support__section-title {
        font-size: clamp(1.5rem, 6vw, 2.2rem);
        margin-bottom: 15px;
    }
    .page-support__section-intro {
        font-size: 0.95rem;
        margin-bottom: 30px;
    }

    /* Popular Topics */
    .page-support__popular-topics {
        margin-top: -60px;
        padding-top: 60px;
    }
    .page-support__topic-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .page-support__topic-card {
        padding: 20px;
    }
    .page-support__card-title {
        font-size: 1.2rem;
    }
    .page-support__topic-card p {
        font-size: 0.9rem;
    }

    /* Detailed Guides */
    .page-support__detailed-guides {
        padding-top: 60px;
        padding-bottom: 60px;
    }
    .page-support__guide-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    .page-support__guide-item img {
        
    }
    .page-support__guide-title {
        font-size: 1.15rem;
        padding: 15px 15px 8px;
    }
    .page-support__guide-item p {
        font-size: 0.9rem;
        padding: 0 15px;
    }
    .page-support__guide-item .page-support__card-link {
        padding: 0 15px 15px;
    }

    /* FAQ Section */
    .page-support__faq-section {
        padding-top: 60px;
        padding-bottom: 60px;
    }
    details.page-support__faq-item summary.page-support__faq-question { padding: 15px; }
    .page-support__faq-qtext { font-size: 15px; }
    details.page-support__faq-item .page-support__faq-answer { padding: 0 15px 15px; }

    /* Contact CTA */
    .page-support__contact-cta {
        padding: 50px 15px;
        gap: 30px;
        border-radius: 5px;
        margin-bottom: 30px;
    }
    .page-support__contact-cta .page-support__section-title {
        font-size: clamp(1.5rem, 6vw, 2rem);
    }
    .page-support__contact-cta .page-support__description {
        font-size: 0.95rem;
    }
    .page-support__cta-buttons {
        flex-direction: column;
        gap: 15px;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    .page-support__cta-button {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        padding: 12px 20px;
    }
    .page-support__contact-image {
        max-width: 90%;
    }

    /* Universal image and container responsive rules */
    .page-support img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block;
    }
    .page-support__section,
    .page-support__card,
    .page-support__container,
    .page-support__topic-card,
    .page-support__guide-item {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    .page-support__faq-list {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }

    /* Fixed button width for mobile, ensures no overflow */
    .page-support__cta-button,
    .page-support__btn-primary,
    .page-support__btn-secondary,
    .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-left: 15px;
      padding-right: 15px;
    }
    .page-support__cta-buttons,
    .page-support__button-group,
    .page-support__btn-container {
      max-width: 100% !important;
      width: 100% !important;
      box-sizing: border-box !important;
      padding-left: 15px;
      padding-right: 15px;
      flex-wrap: wrap !important;
      gap: 10px;
    }
    .page-support__cta-buttons {
      display: flex;
      flex-direction: column;
    }

    /* Placeholder for product grid mobile rules (not applicable for help center but required in checklist) */
    .page-support__products-grid {
        overflow-x: hidden;
        display: grid;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 20px;
    }
    .page-support__products-grid > *:nth-child(n+5) {
        grid-column: span 1;
    }

    /* Placeholder for article body/figure mobile rules (required in checklist) */
    .page-support__article-body {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        text-align: left;
    }
    .page-support__article-figure {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        margin-left: auto;
        margin-right: auto;
        display: block;
    }
    .page-support__section-title-wrap {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        text-align: center;
    }
}

/* Ensure contrast for links within dark sections */
.page-support__contact-cta a {
    color: #ffffff;
    text-decoration: underline;
}
.page-support__contact-cta a.page-support__cta-button {
    text-decoration: none;
}

/* General link color for light backgrounds */
.page-support a {
    color: #E53935;
    text-decoration: none;
}
.page-support a:hover {
    color: #FF5A4F;
    text-decoration: underline;
}