/* ============================================================
   solutions_home.css — 解决方案首页专属样式
   依赖：main.css（全局变量、Reset、Header、Footer、Nav）
         banner.css（Banner 区块）
   本文件仅包含页面专属内容，不重复定义全局规则
   ============================================================ */

/* ============================================================
   Hero 横幅区块
   ============================================================ */
.hero {
  background: linear-gradient(135deg, #f0f7f3 0%, #e8f5ee 50%, #f5f9f6 100%);
  padding: 60px 0;
  overflow: hidden;
}

.hero__inner {
  display: flex;
  align-items: center;
  gap: 48px;
}

.hero__content {
  flex: 1;
  min-width: 0;
}

.hero__eyebrow {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.hero__title {
  font-size: 40px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero__desc {
  font-size: 14.5px;
  color: var(--color-text-mid);
  line-height: 1.8;
  margin-bottom: 36px;
}

.hero__features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.hero__feature {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.hero__feature-icon {
  width: 36px;
  height: 36px;
  object-fit: contain;
  flex-shrink: 0;
  background: var(--color-primary-bg);
  border-radius: 8px;
  padding: 6px;
}

.hero__feature-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
}

.hero__feature-sub {
  font-size: 12px;
  color: var(--color-text-light);
}

/* Hero 右侧图片 */
.hero__image {
  flex: 0 0 480px;
  max-width: 480px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.hero__image img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  background: #d8ead0;
}

/* ============================================================
   区块通用标题
   ============================================================ */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
  letter-spacing: 2px;
}

.section-sub {
  font-size: 14px;
  color: var(--color-text-light);
}

/* ============================================================
   解决方案卡片区域
   ============================================================ */
.solutions {
  padding: 72px 0;
}

.solutions__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

/* 解决方案卡片 */
.sol-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-white);
  transition: box-shadow var(--transition), transform var(--transition);
}

.sol-card:hover {
  box-shadow: 0 8px 32px rgba(26, 92, 58, 0.12);
  transform: translateY(-4px);
}

/* 卡片图片区 */
.sol-card__img-wrap {
  position: relative;
  overflow: hidden;
}

.sol-card__img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: #d8ead0;
  transition: transform 0.4s ease;
}

.sol-card:hover .sol-card__img {
  transform: scale(1.04);
}

.sol-card__num {
  position: absolute;
  bottom: 12px;
  right: 16px;
  font-size: 36px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1;
  pointer-events: none;
  font-style: italic;
}

/* 卡片内容区 */
.sol-card__body {
  padding: 20px 22px 22px;
}

.sol-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.sol-card__desc {
  font-size: 13.5px;
  color: var(--color-text-mid);
  line-height: 1.7;
  margin-bottom: 14px;
}

/* 标签 */
.sol-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--color-primary);
  background: var(--color-primary-bg);
  border-radius: 20px;
  padding: 4px 10px;
}

.tag img {
  width: 14px;
  height: 14px;
  object-fit: contain;
}

/* 了解更多按钮 */
.sol-card__btn {
  display: inline-block;
  font-size: 13.5px;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 7px 18px;
  transition: background var(--transition), color var(--transition);
}

.sol-card__btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ============================================================
   定制化解决方案 Banner
   ============================================================ */
.custom-banner {
  /* 背景图设置在 section 上，铺满全宽 */
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 48px 0;
}

/* inner 同时带有 .container，覆盖 max-width 和 padding 让内容区铺满 */
.custom-banner__inner {
  display: flex;
  align-items: center;
  max-width: 100% !important;
  padding: 0 clamp(24px, 4vw, 80px) !important;
  background: transparent;
  border-radius: 0;
  box-shadow: none;
  min-height: 200px;
}

.custom-banner__content {
  /* 左侧文字区占 50%，右侧留白展示背景图产品 */
  flex: 0 0 50%;
  max-width: 50%;
  background: transparent;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.custom-banner__title {
  font-size: 28px;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 10px;
}

.custom-banner__sub {
  font-size: 14px;
  color: var(--color-text-mid);
  margin-bottom: 24px;
}

.custom-banner__steps {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
  margin-bottom: 32px;
}

.custom-banner__steps li {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--color-text);
  font-weight: 500;
}

.check-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  font-size: 11px;
  flex-shrink: 0;
}

/* 主按钮 */
.btn-primary {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 32px;
  border-radius: var(--radius-md);
  transition: background var(--transition), transform var(--transition);
}

.btn-primary:hover {
  background: var(--color-primary-mid);
  transform: translateY(-2px);
}

/* Banner 右侧图片 */
.custom-banner__image {
  flex: 0 0 45%;
  max-width: 45%;
  align-self: stretch;
}

.custom-banner__image img {
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
  border-radius: 0;
  display: block;
}

/* ============================================================
   图片占位（无图时显示绿色渐变背景）
   ============================================================ */
img[src="images/hero-banner.jpg"],
img[src="images/solution-anti-aging.jpg"],
img[src="images/solution-whitening.jpg"],
img[src="images/solution-moisturizing.jpg"],
img[src="images/solution-soothing.jpg"],
img[src="images/solution-acne.jpg"],
img[src="images/solution-firming.jpg"],
img[src="images/custom-banner.jpg"] {
  background: linear-gradient(135deg, #c8e6c9, #a5d6a7);
}

img[src="images/logo.png"],
img[src="images/logo-white.png"] {
  background: transparent;
}

img[src="images/qrcode.png"] {
  background: #fff;
}

/* ============================================================
   动画
   ============================================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.sol-card,
.hero__content,
.custom-banner__content {
  animation: fadeInUp 0.5s ease both;
}

.sol-card:nth-child(1) { animation-delay: 0.05s; }
.sol-card:nth-child(2) { animation-delay: 0.10s; }
.sol-card:nth-child(3) { animation-delay: 0.15s; }
.sol-card:nth-child(4) { animation-delay: 0.20s; }
.sol-card:nth-child(5) { animation-delay: 0.25s; }
.sol-card:nth-child(6) { animation-delay: 0.30s; }

/* ============================================================
   响应式布局（仅页面专属区块）
   ============================================================ */

/* 平板 */
@media (max-width: 1100px) {
  .solutions__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero__features {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 中等屏幕 */
@media (max-width: 900px) {
  .hero__inner {
    flex-direction: column;
  }

  .hero__image {
    flex: none;
    max-width: 100%;
    width: 100%;
  }

  .hero__title {
    font-size: 32px;
  }

  .custom-banner__inner {
    flex-direction: column;
    padding: 36px 28px;
  }

  .custom-banner__image {
    flex: none;
    max-width: 100%;
    width: 100%;
  }
}

/* 手机 */
@media (max-width: 680px) {
  .solutions__grid {
    grid-template-columns: 1fr;
  }

  .hero__features {
    grid-template-columns: repeat(2, 1fr);
  }
}