/* Global Styles & Variables */
:root {
    --primary-color: #F59C1F ; /* 亮橙色 */
    --dark-blue-grey: #2B3541; /* 深蓝灰色 */
    --dark-grey: #1E2328;      /* 页脚深灰色 */
    --text-dark: #333333;
    --text-light: #666666;
    --background-light: #F5F5F5;
    --white-color: #FFFFFF;
    --border-color: #EAEAEA;

    --font-main: "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

body {
    font-family: var(--font-main);
    margin: 0;
    padding: 0;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white-color);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

a {
    text-decoration: none;
    color: var(--text-dark);
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

h1, h2, h3 {
    margin-bottom: 20px;
    font-weight: 600;
}

.section-title {
    text-align: center;
    font-size: 28px;
    position: relative;
    padding-bottom: 10px;
}

.btn {
    display: inline-block;
    padding: 10px 25px;
    background-color: var(--primary-color);
    color: var(--white-color);
    border-radius: 5px;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: #d88e1a;
}