/* ABOUT页基础样式（复用首页变量，新增特有样式） */
:root {
  --primary-green: #2A8C47; /* 与首页一致的主绿 */
  --dark-green: #1A5E30; /* 深绿 */
  --light-green: #F0F8F2; /* 浅绿背景 */
  --gray-100: #F8F8F8; /* 浅灰 */
  --gray-200: #E8E8E8; /* 分割线 */
  --gray-800: #333333; /* 正文 */
  --gray-900: #1A1A1A; /* 标题 */
  --white: #FFFFFF;
  --black: #000000;
}

/* -------------------------- ABOUT英雄区 -------------------------- */
.about-hero {
   background-image: url(../images/banner.jpg);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
  background-color: var(--light-green);
  padding: 60px 0;
  position: relative;
}

.about-hero-container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  align-items: center;
}

.about-hero-title {
  font-size: 48px;
  color: var(--gray-900);
  text-transform: uppercase;
  line-height: 1.2;
  margin-bottom: 10px;
}

.about-hero-subtitle {
  font-size: 24px;
  color: var(--primary-green);
  text-transform: uppercase;
  margin-bottom: 20px;
  font-weight: 600;
}

.about-hero-desc {
  font-size: 16px;
  color: #FFFFFF;
  line-height: 1.6;
}

.about-hero-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* -------------------------- WHO WE ARE 板块 -------------------------- */
.who-we-are {
  padding: 80px 0;
}

.who-we-are-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.who-we-are-desc {
  font-size: 16px;
  color: var(--gray-800);
  line-height: 1.8;
  margin-bottom: 30px;
}

.contact-btn {
  background-color: var(--primary-green);
  color: var(--white);
  padding: 12px 24px;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  transition: all 0.3s ease;
}

.contact-btn:hover {
  background-color: var(--dark-green);
  transform: translateY(-2px);
}

.who-we-are-gallery .gallery-main {
  width: 100%;
  height: 360px;
  margin-bottom: 10px;
  border-radius: 4px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.gallery-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
}

/* -------------------------- OUR STRENGTH 板块 -------------------------- */
.our-strength {
  padding: 60px 0;
  background-color: var(--gray-100);
  text-align: center;
}

.our-strength .section-title {
  margin-bottom: 40px;
  text-transform: uppercase;
  font-size: 28px;
  color: var(--gray-900);
}

.strength-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 30px;
}

.strength-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
}

.strength-item i {
  font-size: 36px;
  color: var(--primary-green);
  margin-bottom: 15px;
}

.strength-item span {
  font-size: 32px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 5px;
}

.strength-item p {
  font-size: 14px;
  color: var(--gray-800);
  text-transform: uppercase;
  font-weight: 600;
}

/* -------------------------- MISSION & VALUES 板块 -------------------------- */
.mission-values {
  padding: 80px 0;
}

.mission-values-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.our-mission .section-title,
.our-values .section-title {
  margin-bottom: 30px;
  text-transform: uppercase;
  font-size: 28px;
}

.mission-list {
  list-style: none;
}

.mission-list li {
  display: flex;
  align-items: flex-start;
  margin-bottom: 20px;
  font-size: 16px;
  line-height: 1.6;
}

.mission-list li i {
  color: var(--primary-green);
  margin-right: 15px;
  margin-top: 5px;
  font-size: 18px;
}

.values-list {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.value-item {
  display: flex;
  align-items: flex-start;
}

.value-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--primary-green);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 15px;
  flex-shrink: 0;
}

.value-content h3 {
  font-size: 18px;
  text-transform: uppercase;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.value-content p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--gray-800);
}

/* -------------------------- GLOBAL MARKET 板块 -------------------------- */
.global-market {
  padding: 60px 0;
  background-color: var(--light-green);
}

.global-market-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.global-market-desc {
  font-size: 16px;
  line-height: 1.6;
  margin-bottom: 30px;
  color: var(--gray-800);
}

.world-map {
  width: 100%;
  height: auto;
  max-width: 400px;
}

.global-market-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.global-market-gallery img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 4px;
  transition: transform 0.3s ease;
}

.global-market-gallery img:hover {
  transform: scale(1.02);
}

/* -------------------------- CTA 板块 -------------------------- */
.cta-section {
  padding: 60px 0;
  background-color: var(--gray-900);
  color: var(--white);
  background-image: url('../assets/cta-bg.jpg');
  background-size: cover;
  background-position: center;
  background-blend-mode: overlay;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.7);
  z-index: 1;
}

.cta-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 2;
}

.cta-content {
  max-width: 600px;
}

.cta-content i {
  font-size: 36px;
  color: var(--primary-green);
  margin-bottom: 15px;
}

.cta-content h2 {
  font-size: 28px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.cta-content p {
  font-size: 16px;
  opacity: 0.9;
}

.cta-btn {
  background-color: var(--primary-green);
  color: var(--white);
  padding: 15px 30px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
}

.cta-btn:hover {
  background-color: var(--dark-green);
  transform: translateY(-2px);
}

/* -------------------------- 响应式适配 -------------------------- */
@media (max-width: 992px) {
  .about-hero-container,
  .who-we-are-container,
  .mission-values-container,
  .global-market-container {
    grid-template-columns: 1fr;
  }

  .about-hero-title {
    font-size: 36px;
  }

  .cta-container {
    flex-direction: column;
    text-align: center;
    gap: 30px;
  }
}

@media (max-width: 768px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .strength-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .global-market-gallery {
    grid-template-columns: 1fr;
  }

  .our-strength .section-title,
  .our-mission .section-title,
  .our-values .section-title {
    font-size: 24px;
  }
}

@media (max-width: 576px) {
  .about-hero {
    padding: 40px 0;
  }

  .about-hero-title {
    font-size: 28px;
  }

  .about-hero-subtitle {
    font-size: 20px;
  }

  .who-we-are,
  .mission-values {
    padding: 40px 0;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }

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

  .cta-content h2 {
    font-size: 24px;
  }
}