/* ========== 全局基础样式 ========== */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
}

/* ========== 自定义通用工具类 ========== */
/* 文字渐变效果 */
.text-gradient {
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 网格背景纹理（科技感底纹） */
.bg-grid {
    background-image: linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
    background-size: 40px 40px;
}

/* 卡片悬停上浮效果 */
.card-hover {
    transition: all 0.3s ease;
}
.card-hover:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(15, 118, 110, 0.15);
}

/* 文本多行截断 */
.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========== 响应式适配优化 ========== */
@media (max-width: 768px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}