/* 页面基础样式 */
.page-da-ga {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333333; /* 深色文本，适配浅色背景 */
    background-color: #f8f9fa; /* 假设 body var(--secondary-color) 结果为浅色背景 */
}

/* Hero Section */
.page-da-ga__hero-section {
    position: relative;
    padding-top: 10px; /* 小顶部内边距，body 处理 header offset */
    margin-bottom: 40px;
    display: flex;
    flex-direction: column; /* 图片在上，文字在下 */
    align-items: center;
    background-color: #017439; /* 主品牌色作为 Hero 背景 */
    color: #ffffff; /* 深色背景上的白色文本 */
    overflow: hidden;
}

.page-da-ga__hero-image {
    width: 100%;
    max-height: 675px; /* Hero 图片最大高度 */
    overflow: hidden;
}

.page-da-ga__hero-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    object-position: center;
    min-width: 200px;
    min-height: 200px;
}

.page-da-ga__hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 30px 15px 50px;
    max-width: 900px;
    width: 100%;
    box-sizing: border-box;
}

.page-da-ga__main-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem); /* 使用 clamp 限制 H1 字号 */
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #ffffff; /* 白色文本在主绿色背景上，确保对比度 */
}

.page-da-ga__hero-description {
    font-size: 1.1rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.page-da-ga__hero-cta-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

/* 通用按钮样式 */
.page-da-ga__btn-primary,
.page-da-ga__btn-secondary,
.page-da-ga__btn-read-more,
.page-da-ga__btn-text-link {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
    text-align: center;
}

.page-da-ga__btn-primary {
    background-color: #C30808; /* 注册/登录按钮颜色 */
    color: #ffffff; /* 确保在红色按钮上文字对比度达标 (4.5:1) */
    border: 2px solid #C30808;
}

.page-da-ga__btn-primary:hover {
    background-color: #a00606;
    border-color: #a00606;
}

.page-da-ga__btn-secondary {
    background-color: transparent;
    color: #ffffff; /* Hero 背景上的白色文本 */
    border: 2px solid #ffffff;
}

.page-da-ga__btn-secondary:hover {
    background-color: #ffffff;
    color: #017439; /* 白色背景上的主色文本 */
}

.page-da-ga__btn-read-more {
    background-color: #017439; /* 主色 */
    color: #ffffff;
    border: 2px solid #017439;
    padding: 8px 15px;
    font-size: 0.9rem;
}

.page-da-ga__btn-read-more:hover {
    background-color: #005a2d;
    border-color: #005a2d;
}

.page-da-ga__btn-text-link {
    color: #017439;
    background: none;
    border: none;
    text-decoration: underline;
    padding: 0;
}
.page-da-ga__btn-text-link:hover {
    color: #005a2d;
}

/* 通用 Section 样式 */
.page-da-ga__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 15px;
    box-sizing: border-box;
}

.page-da-ga__section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
    color: #017439; /* 主色用于标题 */
}

.page-da-ga__dark-section .page-da-ga__section-title {
    color: #ffffff; /* 深色 Section 上的白色标题 */
}

.page-da-ga__text-block {
    font-size: 1.05rem;
    margin-bottom: 20px;
    line-height: 1.7;
}

.page-da-ga__dark-section {
    background-color: #017439; /* 主品牌色 */
    color: #ffffff; /* 白色文本 */
}

.page-da-ga__light-bg {
    background-color: #ffffff;
    color: #333333;
}

/* Why Choose Section */
.page-da-ga__features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.page-da-ga__feature-card {
    background-color: rgba(255, 255, 255, 0.1); /* 深色背景上的半透明白色 */
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    color: #ffffff; /* 深色卡片上的白色文本 */
}