/* ====== Element UI 风格 - 基础重置 ====== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.6;
    color: #303133;
    background-color: #f0f2f5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-size: 14px;
}

a {
    color: #409EFF;
    text-decoration: none;
}

a:hover {
    color: #66b1ff;
}

/* ====== 容器 ====== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* ====== 导航栏 ====== */
.navbar {
    background-color: #fff;
    color: #303133;
    padding: 0 20px;
    height: 60px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.navbar-brand {
    font-size: 20px;
    font-weight: 600;
    color: #409EFF !important;
}

.navbar-nav {
    list-style: none;
    display: flex;
    gap: 24px;
}

.navbar-nav a {
    color: #606266;
    transition: color 0.15s;
    font-size: 14px;
}

.navbar-nav a:hover {
    color: #409EFF;
    text-decoration: none;
}

/* ====== 主内容 ====== */
main {
    flex: 1;
    padding: 30px 0;
}

/* ====== 首页英雄区域 ====== */
.hero {
    text-align: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, #409EFF 0%, #5DADE2 100%);
    color: #fff;
    border-radius: 8px;
    margin: 20px 0;
}

.hero h1 {
    font-size: 2.2em;
    margin-bottom: 12px;
}

.hero p {
    font-size: 1.1em;
    opacity: 0.9;
}

/* ====== 错误页面 ====== */
.error-page {
    text-align: center;
    padding: 80px 20px;
}

.error-page h1 {
    font-size: 6em;
    color: #F56C6C;
}

.error-page p {
    font-size: 1.3em;
    margin: 16px 0 24px;
    color: #909399;
}

.error-page a {
    color: #409EFF;
}

/* ====== 页脚 ====== */
.footer {
    background-color: #fff;
    color: #909399;
    text-align: center;
    padding: 20px 0;
    margin-top: auto;
    border-top: 1px solid #ebeef5;
    font-size: 13px;
}

/* ====== 移动端导航菜单按钮 ====== */
.navbar-toggle {
    display: none;
    background: none;
    border: none;
    color: #606266;
    font-size: 22px;
    cursor: pointer;
    padding: 4px 8px;
    line-height: 1;
}

/* ====== 响应式 ====== */
@media (max-width: 768px) {
    .navbar .container {
        flex-wrap: wrap;
    }

    .navbar-toggle {
        display: block;
        order: -1;
    }

    .navbar-brand {
        flex: 1;
        text-align: center;
    }

    .navbar-nav {
        display: none;
        flex-direction: column;
        width: 100%;
        gap: 0;
        padding: 8px 0 0;
        border-top: 1px solid #ebeef5;
    }

    .navbar-nav.show {
        display: flex;
    }

    .navbar-nav li {
        text-align: center;
    }

    .navbar-nav a {
        display: block;
        padding: 10px 0;
    }

    .hero {
        padding: 40px 16px;
    }

    .hero h1 {
        font-size: 1.6em;
    }

    .hero p {
        font-size: 1em;
    }

    .error-page {
        padding: 40px 16px;
    }

    .error-page h1 {
        font-size: 3.5em;
    }

    .error-page p {
        font-size: 1.1em;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.3em;
    }

    .error-page h1 {
        font-size: 2.5em;
    }
}