/* 基礎設定 */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Helvetica Neue", Arial, "微軟正黑體", sans-serif;
  scroll-behavior: smooth; /* 點擊選單時平滑捲動 */
}

body {
  color: #333;
  line-height: 1.6;
}

/* 按鈕樣式 */
.btn-primary {
  display: inline-block;
  background-color: #d9534f; /* 健身房常見的活力紅色系，可自由更改 */
  color: white;
  padding: 10px 24px;
  text-decoration: none;
  border-radius: 4px;
  font-weight: bold;
  border: none;
  cursor: pointer;
  transition: background-color 0.3s;
}

.btn-primary:hover {
  background-color: #c9302c;
}

/* 導覽列 */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 5%;
  background-color: #fff;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar .logo {
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 2px;
}

.navbar nav a {
  text-decoration: none;
  color: #555;
  margin-left: 20px;
  font-weight: 500;
}

/* 主視覺區域 */
.hero {
  height: 80vh;
  background-color: #111; /* 這裡未來可以替換成健身房真實照片的背景 */
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 20px;
}

.hero-content h1 {
  font-size: 3rem;
  margin-bottom: 20px;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* 各個區塊共用設定 */
section {
  padding: 80px 5%;
  text-align: center;
}

section h2 {
  font-size: 2rem;
  margin-bottom: 40px;
  color: #222;
}

/* 課程卡片 */
.service-cards {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap; /* 讓手機版可以自動折行 */
}

.card {
  background: #f9f9f9;
  padding: 30px;
  border-radius: 8px;
  width: 30%;
  min-width: 280px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.card h3 {
  margin-bottom: 15px;
  color: #2eb747;
}

/* 流程步驟 */
.process {
  background-color: #222;
  color: white;
}

.process h2 {
  color: white;
}

.steps {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.step {
  width: 25%;
  min-width: 250px;
}

.step-num {
  font-size: 3rem;
  font-weight: bold;
  color: #d9534f;
  margin-bottom: 10px;
}

/* 聯絡表單 */
.contact-form {
  max-width: 500px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.contact-form input,
.contact-form select {
  padding: 12px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
}

/* 頁尾 */
footer {
  background-color: #111;
  color: #777;
  text-align: center;
  padding: 20px;
  font-size: 0.9rem;
}