/* ===== Global Background (พื้นหลังเต็มหน้าแบบจางๆ) ===== */
body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: url('../images/bg-rice.jpg') no-repeat center center fixed;
  background-size: cover;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,0.6); /* ความจาง (0=เข้ม, 1=ขาว) */
  z-index: -1;
}

/* ===== Hero Section (ตรงหัวข้อ About Us) ===== */
.hero {
  position: relative;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  color: #003366;
  font-weight: bold;
  z-index: 2;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.45); /* เฉพาะ hero ทำให้จางเข้ม */
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
}

/* ===== Content Section ===== */
.section {
  padding: 60px 20px;
}

.section h2 {
  text-align: center;
  color: #003366;
  margin-bottom: 20px;
}

.section p {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  line-height: 1.8;
}