<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>统计信息 - 短信转发接收端</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            padding: 20px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            background: white;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            animation: slideInDown 0.5s ease-out;
        }

        .header h1 {
            font-size: 24px;
            color: #333;
        }

        .nav {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .nav a {
            padding: 8px 16px;
            text-decoration: none;
            background: #667eea;
            color: white;
            border-radius: 5px;
            transition: background 0.3s;
        }

        .nav a:hover {
            background: #764ba2;
        }

        .nav a.active {
            background: #764ba2;
        }

        .nav .logout {
            background: #dc3545;
        }

        .nav .logout:hover {
            background: #c82333;
        }

        .stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
            animation: fadeInUp 0.5s ease-out forwards;
            opacity: 0;
        }

        .stats .stat-card:nth-child(1) { animation-delay: 0.1s; }
        .stats .stat-card:nth-child(2) { animation-delay: 0.2s; }
        .stats .stat-card:nth-child(3) { animation-delay: 0.3s; }
        .stats .stat-card:nth-child(4) { animation-delay: 0.4s; }

        .stat-card {
            background: white;
            padding: 30px 20px;
            border-radius: 10px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            text-align: center;
        }

        .stat-card h3 {
            font-size: 14px;
            color: #666;
            margin-bottom: 15px;
        }

        .stat-card .value {
            font-size: 36px;
            font-weight: bold;
            color: #333;
        }

        .stat-card.blue { border-top: 4px solid #667eea; }
        .stat-card.green { border-top: 4px solid #38ef7d; }
        .stat-card.orange { border-top: 4px solid #f5576c; }
        .stat-card.purple { border-top: 4px solid #764ba2; }

        .detail-section {
            background: white;
            border-radius: 10px;
            padding: 25px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            animation: fadeInUp 0.5s ease-out forwards;
            opacity: 0;
            animation-delay: 0.5s;
        }

        .detail-section h2 {
            font-size: 18px;
            color: #333;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }

        .detail-section table {
            width: 100%;
            border-collapse: collapse;
        }

        .detail-section td {
            padding: 15px;
            border-bottom: 1px solid #eee;
        }

        .detail-section td:first-child {
            color: #666;
            width: 150px;
        }

        .detail-section tr:hover {
            background-color: #f9f9f9;
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: bold;
        }

        .badge-success {
            background: #d4edda;
            color: #155724;
        }

        .badge-warning {
            background: #fff3cd;
            color: #856404;
        }

        .badge-danger {
            background: #f8d7da;
            color: #721c24;
        }

        .progress-bar {
            width: 100%;
            height: 20px;
            background: #f0f0f0;
            border-radius: 10px;
            overflow: hidden;
            margin-top: 10px;
        }

        .progress-bar .fill {
            height: 100%;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            transition: width 0.5s ease;
        }

        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        @keyframes slideInDown {
            from { opacity: 0; transform: translateY(-30px); }
            to { opacity: 1; transform: translateY(0); }
        }

        @media (max-width: 768px) {
            .header { flex-direction: column; gap: 15px; }
            .nav { justify-content: center; }
            .stats { grid-template-columns: 1fr 1fr; }
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="header">
            <h1>📊 统计信息</h1>
            <div class="nav">
                <a href="/">短信列表</a>
                <a href="/logs">接收日志</a>
                <a href="/statistics" class="active">统计信息</a>
                <a href="/logout" class="logout">退出登录</a>
            </div>
        </div>

        <div class="stats">
            <div class="stat-card blue">
                <h3>短信总数</h3>
                <div class="value">{{.stats.Total}}</div>
            </div>
            <div class="stat-card green">
                <h3>今日短信</h3>
                <div class="value">{{.stats.Today}}</div>
            </div>
            <div class="stat-card orange">
                <h3>本周短信</h3>
                <div class="value">{{.stats.Week}}</div>
            </div>
            <div class="stat-card purple">
                <h3>签名验证</h3>
                <div class="value">{{add .stats.Verified .stats.Unverified}}</div>
            </div>
        </div>

        <div class="detail-section">
            <h2>签名验证详情</h2>
            <table>
                <tr>
                    <td>已验证签名</td>
                    <td>
                        <span class="badge badge-success">{{.stats.Verified}} 条</span>
                    </td>
                </tr>
                <tr>
                    <td>未验证签名</td>
                    <td>
                        {{if .stats.Unverified}}
                        <span class="badge badge-warning">{{.stats.Unverified}} 条</span>
                        {{else}}
                        <span class="badge badge-success">0 条</span>
                        {{end}}
                    </td>
                </tr>
                <tr>
                    <td>验证通过率</td>
                    <td>
                        {{if .stats.Total}}
                            {{if .stats.Verified}}
                            <span class="badge badge-success">{{printf "%.1f" (mulFloat .stats.Verified .stats.Total)}}%</span>
                            {{else}}
                            <span class="badge badge-warning">0%</span>
                            {{end}}
                        {{else}}
                        <span style="color: #999;">N/A</span>
                        {{end}}
                    </td>
                </tr>
            </table>

            {{if .stats.Total}}
            {{$verified := .stats.Verified}}
            {{$total := .stats.Total}}
            <div class="progress-bar">
                <div class="fill" style="width: {{mulFloat $verified $total}}%"></div>
            </div>
            <p style="margin-top: 10px; color: #666; font-size: 14px;">
                已验证 {{.stats.Verified}} / 总数 {{.stats.Total}}
            </p>
            {{end}}
        </div>
    </div>
</body>
</html>