/* Ada 隐私协议 - 侧边栏导航式（完全不同的布局） */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: #333;
    background: #f5f7fa;
    margin: 0;
    padding: 0;
}

/* 固定顶部导航栏 */
.header {
    background: linear-gradient(90deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 25px 40px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.header h1 {
    font-size: 1.8em;
    font-weight: 700;
    margin-bottom: 5px;
}

.header .app-name {
    font-size: 1em;
    opacity: 0.9;
}

/* 侧边栏导航 */
.sidebar {
    position: fixed;
    left: 0;
    top: 100px;
    width: 280px;
    height: calc(100vh - 100px);
    background: white;
    padding: 30px 20px;
    overflow-y: auto;
    border-right: 2px solid #e0e0e0;
    box-shadow: 4px 0 15px rgba(0,0,0,0.05);
}

.sidebar h3 {
    color: #f5576c;
    font-size: 1.1em;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f093fb;
}

.sidebar ul {
    list-style: none;
}

.sidebar li {
    margin-bottom: 15px;
}

.sidebar a {
    color: #555;
    text-decoration: none;
    display: block;
    padding: 10px 15px;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-size: 0.95em;
}

.sidebar a:hover {
    background: linear-gradient(135deg, #fff0f5 0%, #ffe6ee 100%);
    color: #f5576c;
    padding-left: 20px;
}

/* 主内容区域 */
.container {
    margin-left: 280px;
    margin-top: 100px;
    padding: 0;
    max-width: none;
}

.effective-date {
    background: white;
    padding: 20px 40px;
    border-left: 5px solid #f5576c;
    margin: 0 40px 30px 40px;
    font-weight: 600;
    color: #f5576c;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.content {
    padding: 0 40px 60px 40px;
    max-width: 900px;
}

.intro {
    font-size: 1.1em;
    color: #444;
    margin-bottom: 35px;
    padding: 30px;
    background: white;
    border-radius: 12px;
    border-left: 5px solid #f093fb;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.section {
    margin-bottom: 40px;
    padding: 35px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 3px 15px rgba(0,0,0,0.06);
}

.section h2 {
    color: #f5576c;
    font-size: 1.8em;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid #ffe6f0;
    display: inline-block;
}

.section h3 {
    color: #f093fb;
    font-size: 1.3em;
    margin: 22px 0 12px 0;
    font-weight: 600;
}

.section p {
    margin-bottom: 16px;
    color: #555;
    line-height: 1.8;
}

.section ul {
    margin: 18px 0 18px 30px;
}

.section li {
    margin-bottom: 10px;
    color: #555;
    line-height: 1.7;
}

.highlight-box, .important-box, .info-box {
    padding: 20px 25px;
    margin: 25px 0;
    border-radius: 10px;
    border-left: 5px solid;
}

.highlight-box {
    background: #fff9e6;
    border-left-color: #ffc107;
}

.important-box {
    background: #ffe6e6;
    border-left-color: #dc3545;
}

.info-box {
    background: #e6f7ff;
    border-left-color: #17a2b8;
}

.footer {
    background: #2c3e50;
    color: white;
    padding: 35px 40px;
    text-align: center;
    margin-left: 280px;
    margin-top: 40px;
}

.footer p {
    margin-bottom: 8px;
}

.footer a {
    color: #f093fb;
    text-decoration: none;
    font-weight: 600;
    border-bottom: 2px solid #f093fb;
}

.footer a:hover {
    color: #f5576c;
    border-bottom-color: #f5576c;
}

strong {
    color: #f5576c;
    font-weight: 700;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .sidebar {
        display: none;
    }

    .container {
        margin-left: 0;
        margin-top: 120px;
    }

    .content {
        padding: 0 20px 40px 20px;
    }

    .effective-date {
        margin: 0 20px 20px 20px;
    }

    .section {
        padding: 25px 20px;
    }

    .footer {
        margin-left: 0;
    }

    .header {
        padding: 20px;
    }

    .header h1 {
        font-size: 1.5em;
    }
}

/* 滚动条美化 */
.sidebar::-webkit-scrollbar {
    width: 8px;
}

.sidebar::-webkit-scrollbar-track {
    background: #f1f1f1;
}

.sidebar::-webkit-scrollbar-thumb {
    background: #f093fb;
    border-radius: 4px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: #f5576c;
}