/* ========== feature-nav.html - 功能导航 ========== */

/* ========== Recommended Tools ========== */
.recommended-section {
  margin-bottom: 36px;
}

.recommended-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.recommended-title svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-primary);
  fill: none;
  stroke-width: 2;
}

.recommended-list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}

.recommended-item {
  background: var(--color-white);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  padding-left: 25px;
  cursor: pointer;
  transition: all var(--transition-base);
  border: 1.5px solid var(--color-border);
  text-decoration: none;
  color: inherit;
  display: flex;
  align-items: center;
  gap: 8px;
  -webkit-tap-highlight-color: transparent;
}

.recommended-item:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.recommended-item:active {
  transform: scale(0.97);
}

.recommended-item-icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.recommended-item-icon svg {
  width: 14px;
  height: 14px;
  stroke: white;
  fill: none;
  stroke-width: 2;
}

.recommended-item-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
}

/* 上图下文的图片（默认PC隐藏，仅移动端H5显示） */
.recommended-item-img {
  display: none;
}

/* 选项卡导航（默认PC隐藏，仅移动端H5显示） */
.home-tab-nav {
  display: none;
}

/* ========== Section Title ========== */
.category-section {
  margin-bottom: 40px;
}

.category-section:last-child {
  margin-bottom: 0;
}

.category-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.category-title::before {
  content: '';
  width: 4px;
  height: 22px;
  background: var(--color-primary);
  border-radius: 2px;
}

/* ========== Feature Card Grid ========== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.feature-card {
  background: var(--color-card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  -webkit-tap-highlight-color: transparent;
  border: 1px solid var(--color-border);
  text-decoration: none;
  color: inherit;
  display: block;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
  border-color: #d0d0ff;
}

.feature-card:active {
  transform: scale(0.98);
}

.feature-card-image {
  width: 100%;
  aspect-ratio: 16/10;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.feature-card-image .img-bg {
  position: absolute;
  inset: 0;
  opacity: 0.08;
}

.feature-card-image .img-content {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-card-image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .2s ease-out;
    border-radius: 16px 16px 0px 0px;
}

.feature-card-image .img-content svg {
  width: 100%;
  height: 100%;
}

.feature-card-body {
  padding: 16px 18px 18px;
  padding-left: 20px;
  position: relative;
}

.feature-card-icon {
  position: absolute;
  left: 15px;
  top: -18px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--color-white);
  z-index: 2;
}

.feature-card-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-text-secondary);
  fill: none;
  stroke-width: 1.8;
}

.feature-card-info {
  min-width: 0;
  margin-top:10px;
}

.feature-card-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.feature-card-desc {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ========== Responsive ========== */
@media (max-width: 639px) {
  .recommended-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  /* 推荐工具：复刻小程序（图片卡片 + 底部文字浮层） */
  .recommended-item {
    display: block;
    position: relative;
    padding: 0;
    border: none;
    background: transparent;
    border-radius: 8px;
  }

  .recommended-item:hover {
    border: none;
    transform: none;
    box-shadow: none;
  }

  .recommended-item-icon {
    display: none;
  }

  .recommended-item-img {
    display: block;
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 8px;
    overflow: hidden;
  }

  .recommended-item-img img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .recommended-item-name {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 23px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text);
    white-space: nowrap;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.4) 0%, #FFFFFF 27.13%, #FFFFFF 75.14%, rgba(255, 255, 255, 0.4) 100%);
    border: 1px solid #FFFFFF;
    border-radius: 8px;
    box-sizing: border-box;
  }

  /* 选项卡导航：AI设计 / AI商拍 / 图像处理 */
  .home-tab-nav {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--color-border);
  }

  .home-tab-item {
    position: relative;
    font-size: 17px;
    font-weight: 700;
    color: var(--color-text-secondary);
    padding: 6px 2px 10px;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
  }

  .home-tab-item.active {
    color: var(--color-primary);
  }

  .home-tab-underline {
    position: absolute;
    left: 50%;
    bottom: -1px;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    border-radius: 2px;
    background: var(--color-primary);
    transition: width var(--transition-base);
  }

  .home-tab-item.active .home-tab-underline {
    width: 100%;
  }

  /* 选项卡模式下：隐藏分类标题，仅显示当前选中分类 */
  .category-title {
    display: none;
  }

  .category-section {
    display: none;
    margin-bottom: 0;
  }

  .category-section.tab-active {
    display: block;
  }

  /* 移动端隐藏AI图片编辑、拼图设计 */
  #aiDesignGrid .feature-card:nth-child(1),
  #aiDesignGrid .feature-card:nth-child(8) {
    display: none;
  }
}

@media (min-width: 640px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .content-area {
    padding: 40px 28px 48px;
  }

  .category-title {
    font-size: 24px;
  }
}

@media (min-width: 1024px) {
  .content-area {
    padding: 48px 40px 48px;
  }

  .feature-grid {
    grid-template-columns: repeat(7, 1fr);
    gap: 20px;
  }

  .feature-card-title {
    font-size: 16px;
  }

  .feature-card-desc {
    font-size: 14px;
    height: 42px;
    overflow-y: hidden;
  }
  .feature-card-body {
    padding: 16px 8px 18px;
    padding-left: 20px;
    position: relative;
}
}

@media (min-width: 1400px) {
  .feature-grid {
    grid-template-columns: repeat(7, 1fr);
    gap: 18px;
  }
}

@media (pointer: coarse) {
  .feature-card:active {
    transform: scale(0.97);
  }
}

@media (max-width: 374px) {
  .category-title {
    font-size: 18px;
  }

  .feature-card-title {
    font-size: 14px;
  }
}