/* 样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 全局字体设置 */
body {
    font-family: 'Rubik', sans-serif;
}

/* 主体容器宽度设置 */
.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 基础样式设置 */
html {
    font-size: 16px;
    line-height: 1.5;
}

a {
    text-decoration: none;
    color: inherit;
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 头部样式 */
.header {
    width: 100%;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    position: sticky;
    top: 0;
    z-index: 10;
}
.header-inner {
    max-width: 1080px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    padding: 0 15px;
}
.header-logo {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 1px;
}
.header-nav {
    display: flex;
    gap: 32px;
}
.header-nav a {
    font-size: 1rem;
    font-weight: 500;
    color: #222;
    transition: color 0.2s;
}
.header-nav a:hover {
    color: #3b82f6;
}

/* 底部样式 */
.footer {
    background: #222;
    color: #fff;
    padding: 0;
}
.footer-nav {
    display: flex;
    justify-content: center;
    gap: 40px;
    padding: 20px 0;
    font-size: 1.1rem;
}
.footer-nav a {
    color: #fff;
    opacity: 0.9;
    transition: opacity 0.2s;
}
.footer-nav a:hover {
    opacity: 1;
}
.footer-copyright {
    text-align: center;
    font-size: 0.95rem;
    color: #eee;
    padding: 18px 0;
    background: #fff;
    color: #222;
}