/* style/index.css */
.page-index {
  color: #FFF6D6; /* Main text color for dark body background */
  background-color: #0A0A0A; /* Overall page background */
}

/* 🚨 Module A: Activity Hero (Left Image, Right Text) */
.page-index__promo-hero-section {
  position: relative;
  padding-top: var(--header-offset, 120px); /* Ensures content is not hidden by fixed header */
  margin-bottom: 60px; /* Space between promo hero and carousel */
  background-color: #0A0A0A;
}

.page-index__promo-hero-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.page-index__promo-hero-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.page-index__promo-hero-media {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.page-index__promo-hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-index__promo-hero-content {
  padding: 40px;
  background: #111111; /* Card BG */
  color: #FFF6D6;
}

.page-index__promo-hero-title {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  margin-bottom: 15px;
  color: #FFD36B; /* Glow color for emphasis */
  line-height: 1.2;
}

.page-index__promo-hero-subtitle {
  font-size: 18px;
  font-weight: 500;
  margin-bottom: 20px;
  color: #F2C14E;
}

.page-index__promo-hero-desc {
  font-size: 16px;
  line-height: 1.6;
  margin-bottom: 30px;
  color: #FFF6D6;
}

.page-index__promo-hero-cta {
  display: inline-block;
  padding: 12px 25px;
  background: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
  color: #111111; /* Dark text for bright button */
  border-radius: 8px;
  font-size: 18px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.page-index__promo-hero-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.4);
}

/* 🚨 Module B: Carousel (Full-width) */
.page-index__hero-carousel-section {
  position: relative;
  width: 100vw; /* 🚨 Carousel must be full screen */
  overflow: hidden;
  margin-bottom: 60px;
  background-color: #0A0A0A;
}

.page-index__hero-carousel {
  position: relative;
  width: 100%;
}

.page-index__hero-slides {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 40%; /* 16:9 aspect ratio for desktop */
  overflow: hidden;
}

.page-index__hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform: translateX(100%);
  transition: transform 0.6s ease;
  z-index: 0;
}

.page-index__hero-slide.active {
  transform: translateX(0);
  z-index: 1;
}

.page-index__hero-slide.prev {
  transform: translateX(-100%);
  z-index: 0;
}

.page-index__hero-slide a {
  display: block;
  width: 100%;
  height: 100%;
}

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

.page-index__hero-indicators {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 2;
}

.page-index__hero-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5); /* White dots on dark background */
  cursor: pointer;
  transition: background 0.3s ease;
}

.page-index__hero-dot.active {
  background: #ffffff;
}

.page-index__hero-dot:hover {
  background: rgba(255, 255, 255, 0.8);
}

/* Module 1: Article Category Display Area */
.page-index__articles-section {
  padding: 60px 20px;
  background-color: #0A0A0A;
}

.page-index__articles-container {
  max-width: 1200px;
  margin: 0 auto;
}

.page-index__articles-main-title {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 5px;
  margin-bottom: 40px;
  text-align: left;
}

.page-index__articles-title-small {
  font-size: 16px;
  font-weight: 900;
  color: #F2C14E; /* Primary color */
}

.page-index__articles-title-large {
  font-size: 36px;
  font-weight: 900;
  color: #FFD36B; /* Auxiliary color */
}

.page-index__category-section {
  margin-bottom: 60px;
  padding: 30px;
  background: #111111; /* Card BG */
  border-radius: 15px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-index__category-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
}

.page-index__category-title-wrapper {
  display: flex;
  align-items: center;
  gap: 15px;
  flex-shrink: 1;
  min-width: 0;
}

.page-index__category-icon {
  width: 30px;
  height: 30px;
  object-fit: contain;
}

.page-index__category-title {
  font-size: 24px;
  font-weight: 600;
  margin: 0;
  color: #FFF6D6; /* Text Main */
}

.page-index__category-read-more {
  color: #F2C14E; /* Primary color for links */
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
  white-space: nowrap;
  flex-shrink: 0;
}

.page-index__category-read-more:hover {
  color: #FFD36B; /* Auxiliary color on hover */
  text-decoration: underline;
}

.page-index__articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 20px;
}

.page-index__article-card {
  display: flex;
  flex-direction: column;
  background: transparent;
  transition: transform 0.3s ease;
}

.page-index__article-card:hover {
  transform: translateY(-5px);
}

.page-index__article-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.page-index__article-thumbnail {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 aspect ratio */
  overflow: hidden;
  background: #222222;
  border-radius: 8px;
  margin-bottom: 0;
}

.page-index__article-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
}

.page-index__article-provider-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(242, 193, 78, 0.8); /* Primary color with transparency */
  color: #111111; /* Dark text for contrast */
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  z-index: 1;
}

.page-index__article-title-link {
  display: block;
  text-decoration: none;
  color: inherit;
  margin-top: 12px;
}

.page-index__article-title {
  margin: 0;
  padding: 0;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  color: #FFF6D6; /* Text Main */
  transition: color 0.3s ease;
}

.page-index__article-title-link:hover .page-index__article-title {
  color: #F2C14E; /* Primary color on hover */
}

/* Module 2: Media Partners/Sponsors Module */
.page-index__partners-section {
  padding: 60px 20px;
  background: #0A0A0A;
}

.page-index__partners-container {
  max-width: 1200px;
  margin: 0 auto;
}

.page-index__partners-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 20px;
  align-items: center;
  justify-items: center;
}

.page-index__partner-item {
  background-color: #111111; /* Card BG */
  border-radius: 10px;
  padding-left: 19px;
  padding-right: 19px;
  padding-top: 9px;
  padding-bottom: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: auto;
  box-sizing: border-box;
  border: 1px solid #3A2A12; /* Border color */
}

.page-index__partner-logo {
  width: 167px;
  height: 127px;
  object-fit: contain;
  display: block;
}

/* Module 3: Information Text Area */
.page-index__info-section {
  padding: 60px 20px;
  background: #0A0A0A; /* Overall page background */
  color: #FFF6D6; /* Text Main */
}

.page-index__info-container {
  max-width: 1200px;
  margin: 0 auto;
}

.page-index__info-main-title {
  font-size: clamp(28px, 3.5vw, 36px);
  font-weight: 600;
  text-align: left;
  margin-bottom: 40px;
  color: #FFD36B; /* Auxiliary color */
  line-height: 1.3;
}

.page-index__info-content {
  line-height: 1.8;
  color: #FFF6D6;
}

.page-index__info-subsection {
  margin-bottom: 40px;
}

.page-index__info-subtitle {
  font-size: clamp(22px, 2.5vw, 28px);
  font-weight: 600;
  margin-bottom: 20px;
  color: #F2C14E; /* Primary color */
}

.page-index__info-content h4 {
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 600;
  margin-top: 25px;
  margin-bottom: 15px;
  color: #FFD36B; /* Auxiliary color */
}

.page-index__info-content p {
  margin-bottom: 15px;
  font-size: 16px;
  line-height: 1.8;
  color: #FFF6D6;
}

.page-index__info-list {
  margin: 20px 0;
  padding-left: 30px;
  list-style-type: disc;
}

.page-index__info-list li {
  margin-bottom: 10px;
  font-size: 16px;
  line-height: 1.8;
  color: #FFF6D6;
}

/* First section is always visible */
.page-index__info-first-section {
  margin-bottom: 40px;
}

/* Collapsible content area */
.page-index__info-expandable {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out;
}

.page-index__info-expandable.expanded {
  max-height: 5000px; /* Sufficiently large to cover all content */
  transition: max-height 0.6s ease-in;
}

/* Load more/Load less button */
.page-index__load-less-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin: 40px auto 0;
  padding: 0;
  background: transparent;
  border: none;
  font-size: 16px;
  font-weight: normal;
  cursor: pointer;
  transition: color 0.3s ease;
  text-decoration: none;
}

.page-index__load-less-text {
  color: #F2C14E; /* Primary color */
  transition: color 0.3s ease;
}

.page-index__load-less-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  color: #F2C14E; /* Primary color */
  transition: color 0.3s ease;
}

.page-index__load-less-arrow {
  font-size: 14px;
  line-height: 1;
  display: block;
}

/* Collapsed state: 'Load more', primary color, 3 down arrows */
.page-index__load-less-btn.collapsed .page-index__load-less-text {
  color: #F2C14E;
}

.page-index__load-less-btn.collapsed .page-index__load-less-icon {
  color: #F2C14E;
}

.page-index__load-less-btn.collapsed .page-index__load-less-arrow {
  display: block;
}

.page-index__load-less-btn.collapsed .page-index__load-less-arrow:nth-child(3) {
  display: block;
}

/* Expanded state: 'Load less', auxiliary color, 2 up arrows */
.page-index__load-less-btn.expanded .page-index__load-less-text {
  color: #FFD36B;
}

.page-index__load-less-btn.expanded .page-index__load-less-icon {
  color: #FFD36B;
}

.page-index__load-less-btn.expanded .page-index__load-less-arrow {
  display: block;
}

.page-index__load-less-btn.expanded .page-index__load-less-arrow:nth-child(3) {
  display: none; /* Hide third arrow for 'Load less' */
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
  .page-index__promo-hero-card {
    gap: 15px;
    padding: 15px;
  }

  .page-index__promo-hero-content {
    padding: 30px;
  }

  .page-index__promo-hero-title {
    font-size: clamp(20px, 3vw, 30px);
  }

  .page-index__promo-hero-subtitle {
    font-size: 16px;
  }

  .page-index__promo-hero-desc {
    font-size: 14px;
  }

  .page-index__promo-hero-cta {
    padding: 10px 20px;
    font-size: 16px;
  }

  .page-index__articles-grid {
    gap: 20px;
  }

  .page-index__articles-title-large {
    font-size: 30px;
  }

  .page-index__category-title {
    font-size: 22px;
  }

  .page-index__article-title {
    font-size: 16px;
  }

  .page-index__partners-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-index__info-main-title {
    font-size: clamp(24px, 3vw, 32px);
  }

  .page-index__info-subtitle {
    font-size: clamp(20px, 2.5vw, 26px);
  }

  .page-index__info-content h4 {
    font-size: clamp(16px, 2vw, 20px);
  }
}

@media (max-width: 768px) {
  /* 🚨 HERO主图区域的padding-top必须在移动端媒体查询中重新设置 */
  .page-index__promo-hero-section {
    padding-top: var(--header-offset, 120px) !important; /* Mobile: controlled by shared's media query */
    margin-bottom: 40px;
  }

  .page-index__promo-hero-card {
    grid-template-columns: 1fr; /* Mobile: stack image and content */
    gap: 14px;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
  }

  .page-index__promo-hero-media {
    height: 250px; /* Fixed height for mobile hero image */
  }

  .page-index__promo-hero-content {
    padding: 25px 15px;
  }

  .page-index__promo-hero-title {
    font-size: 24px;
    margin-bottom: 10px;
  }

  .page-index__promo-hero-subtitle {
    font-size: 15px;
    margin-bottom: 15px;
  }

  .page-index__promo-hero-desc {
    font-size: 14px;
    margin-bottom: 20px;
  }

  .page-index__promo-hero-cta {
    font-size: 16px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    text-align: center;
  }

  .page-index__hero-carousel-section {
    margin-bottom: 40px;
  }

  .page-index__hero-slides {
    padding-bottom: 56.25%; /* 16:9 aspect ratio for mobile */
  }

  .page-index__hero-indicators {
    bottom: 15px;
  }

  .page-index__hero-dot {
    width: 10px;
    height: 10px;
  }

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

  .page-index__articles-main-title {
    margin-bottom: 30px;
  }

  .page-index__articles-title-small {
    font-size: 14px;
  }

  .page-index__articles-title-large {
    font-size: 28px;
  }

  .page-index__category-section {
    margin-bottom: 40px;
    padding: 20px 15px;
    border-radius: 8px;
  }

  .page-index__category-header {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    gap: 10px;
  }

  .page-index__category-title {
    font-size: 20px;
  }

  .page-index__category-icon {
    width: 24px;
    height: 24px;
  }

  .page-index__category-read-more {
    font-size: 14px;
    white-space: nowrap;
  }

  .page-index__articles-grid {
    grid-template-columns: repeat(2, 1fr); /* 2 columns for mobile */
    gap: 15px;
  }

  .page-index__article-title {
    font-size: 16px;
    margin: 0;
    padding: 0;
    line-height: 1.4;
    word-wrap: break-word;
    overflow-wrap: break-word;
  }

  .page-index__article-title-link {
    margin-top: 10px;
  }

  .page-index__partners-grid {
    grid-template-columns: repeat(3, 1fr); /* 3 columns for tablet */
    gap: 15px;
  }

  .page-index__partner-item {
    width: 100%;
    max-width: 167px;
    height: 127px;
    padding: 5px;
  }

  .page-index__partner-logo {
    width: 100%;
    max-width: 167px;
    height: 127px;
  }

  .page-index__info-main-title {
    font-size: 28px;
    text-align: left;
  }

  .page-index__info-subtitle {
    font-size: 24px;
  }

  .page-index__info-content h4 {
    font-size: 20px;
  }

  .page-index__info-content p,
  .page-index__info-list li {
    font-size: 15px;
  }

  /* Mobile image and container overrides */
  .page-index img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-index__section,
  .page-index__card,
  .page-index__container,
  .page-index__promo-hero-card,
  .page-index__category-section,
  .page-index__article-card,
  .page-index__partner-item,
  .page-index__info-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-index__hero-carousel-section,
  .page-index__hero-carousel,
  .page-index__hero-slides {
    padding-left: 0 !important;
    padding-right: 0 !important;
    max-width: 100vw !important;
    width: 100vw !important;
  }

  .page-index__hero-carousel-section {
    margin-left: calc(-50vw + 50%); /* Center full-width element */
    margin-right: calc(-50vw + 50%);
  }

  .page-index__promo-hero-card-link .page-index__promo-hero-cta {
    width: auto !important; /* Allow CTA to adapt to content in mobile */
    padding-left: 20px;
    padding-right: 20px;
  }

  .page-index__load-less-btn {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
}

@media (max-width: 480px) {
  .page-index__promo-hero-section {
    margin-bottom: 30px;
  }

  .page-index__promo-hero-content {
    padding: 20px 10px;
  }

  .page-index__promo-hero-title {
    font-size: 20px;
  }

  .page-index__promo-hero-subtitle {
    font-size: 14px;
  }

  .page-index__promo-hero-desc {
    font-size: 13px;
  }

  .page-index__promo-hero-cta {
    font-size: 14px;
    padding: 10px 15px;
  }

  .page-index__hero-carousel-section {
    margin-bottom: 30px;
  }

  .page-index__hero-slides {
    padding-bottom: 65%; /* Taller aspect ratio for very small screens */
  }

  .page-index__articles-section {
    padding: 30px 10px;
  }

  .page-index__articles-main-title {
    margin-bottom: 25px;
  }

  .page-index__articles-title-small {
    font-size: 12px;
  }

  .page-index__articles-title-large {
    font-size: 22px;
  }

  .page-index__category-section {
    margin-bottom: 30px;
    padding: 15px 10px;
  }

  .page-index__category-title {
    font-size: 18px;
  }

  .page-index__category-read-more {
    font-size: 13px;
  }

  .page-index__articles-grid {
    grid-template-columns: 1fr; /* Single column for very small screens */
    gap: 12px;
  }

  .page-index__article-title {
    font-size: 14px;
  }

  .page-index__partners-grid {
    grid-template-columns: repeat(2, 1fr); /* 2 columns for phones */
    gap: 10px;
  }

  .page-index__partner-item {
    width: 100%;
    max-width: 167px;
    height: 127px;
    padding: 5px;
  }

  .page-index__partner-logo {
    width: 100%;
    max-width: 167px;
    height: 127px;
  }

  .page-index__info-main-title {
    font-size: 22px;
  }

  .page-index__info-subtitle {
    font-size: 20px;
  }

  .page-index__info-content h4 {
    font-size: 16px;
  }

  .page-index__info-content p,
  .page-index__info-list li {
    font-size: 14px;
  }

  .page-index__load-less-btn {
    margin-top: 30px;
  }

  .page-index__section,
  .page-index__card,
  .page-index__container,
  .page-index__promo-hero-card,
  .page-index__category-section,
  .page-index__article-card,
  .page-index__partner-item,
  .page-index__info-container {
    padding-left: 10px;
    padding-right: 10px;
  }

  .page-index__promo-hero-card-link .page-index__promo-hero-cta {
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-index__hero-indicators {
    bottom: 10px;
  }
}

/* Ensure contrast for all text elements */
.page-index__dark-bg {
  background-color: #0A0A0A;
  color: #FFF6D6;
}

.page-index__light-bg {
  background-color: #111111; /* Card BG */
  color: #FFF6D6;
}

/* Button contrast */
.page-index__btn-primary {
  background: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
  color: #111111; /* Dark text for bright button */
}

.page-index__btn-secondary {
  background: #111111;
  color: #F2C14E; /* Primary color text on dark background */
  border: 2px solid #F2C14E;
}