diff --git a/templates/ca_detail.html b/templates/ca_detail.html
index 1d05498..eb5dc07 100644
--- a/templates/ca_detail.html
+++ b/templates/ca_detail.html
@@ -7,25 +7,25 @@
     <h2>CA机构详情: {{ ca.name }}
         <small class="text-muted fs-6">(路径: {{ ca.name|to_pinyin }})</small>
     </h2>
-    <div>
+    <div class="btn-group">
         <a href="{{ url_for('export_ca_view', ca_id=ca.id) }}"
            class="btn btn-primary me-2"
            data-bs-toggle="tooltip"
            title="导出CA证书(管理员可导出私钥)">
-            <i class="fas fa-file-export"></i> 导出CA
+            <i class="fas fa-file-export me-1"></i> 导出CA
         </a>
         <a href="{{ url_for('generate_crl_view', ca_id=ca.id) }}"
            class="btn btn-warning me-2"
            data-bs-toggle="tooltip"
            title="重新生成证书吊销列表">
-            <i class="fas fa-sync-alt"></i> 生成CRL
+            <i class="fas fa-sync-alt me-1"></i> 生成CRL
         </a>
         {% if crl %}
             <a href="{{ url_for('download_crl', ca_id=ca.id) }}"
                class="btn btn-success"
                data-bs-toggle="tooltip"
                title="下载当前CRL文件(有效期至 {{ crl.next_update.strftime('%Y-%m-%d') }})">
-                <i class="fas fa-download"></i> 下载CRL
+                <i class="fas fa-download me-1"></i> 下载CRL
             </a>
         {% endif %}
     </div>
@@ -34,29 +34,29 @@
 <div class="row">
     <div class="col-md-6">
         <div class="card mb-4">
-            <div class="card-header">
-                <h5 class="card-title">
-                    <i class="fas fa-info-circle"></i> 基本信息
+            <div class="card-header bg-light">
+                <h5 class="card-title mb-0">
+                    <i class="fas fa-info-circle text-primary me-2"></i> 基本信息
                 </h5>
             </div>
             <div class="card-body">
-                <dl class="row">
-                    <dt class="col-sm-4"><i class="fas fa-id-card"></i> 通用名</dt>
+                <dl class="row mb-0">
+                    <dt class="col-sm-4 text-muted"><i class="fas fa-id-card me-2"></i> 通用名</dt>
                     <dd class="col-sm-8">{{ ca.common_name }}</dd>
 
-                    <dt class="col-sm-4"><i class="fas fa-building"></i> 组织</dt>
+                    <dt class="col-sm-4 text-muted"><i class="fas fa-building me-2"></i> 组织</dt>
                     <dd class="col-sm-8">{{ ca.organization }}</dd>
 
-                    <dt class="col-sm-4"><i class="fas fa-users"></i> 组织单位</dt>
+                    <dt class="col-sm-4 text-muted"><i class="fas fa-users me-2"></i> 组织单位</dt>
                     <dd class="col-sm-8">{{ ca.organizational_unit or 'N/A' }}</dd>
 
-                    <dt class="col-sm-4"><i class="fas fa-globe"></i> 国家</dt>
+                    <dt class="col-sm-4 text-muted"><i class="fas fa-globe me-2"></i> 国家</dt>
                     <dd class="col-sm-8">{{ ca.country }}</dd>
 
-                    <dt class="col-sm-4"><i class="fas fa-map-marked"></i> 州/省</dt>
+                    <dt class="col-sm-4 text-muted"><i class="fas fa-map-marked me-2"></i> 州/省</dt>
                     <dd class="col-sm-8">{{ ca.state or 'N/A' }}</dd>
 
-                    <dt class="col-sm-4"><i class="fas fa-city"></i> 城市</dt>
+                    <dt class="col-sm-4 text-muted"><i class="fas fa-city me-2"></i> 城市</dt>
                     <dd class="col-sm-8">{{ ca.locality or 'N/A' }}</dd>
                 </dl>
             </div>
@@ -65,38 +65,37 @@
 
     <div class="col-md-6">
         <div class="card mb-4">
-            <div class="card-header">
-                <h5 class="card-title">
-                    <i class="fas fa-cogs"></i> 技术信息
+            <div class="card-header bg-light">
+                <h5 class="card-title mb-0">
+                    <i class="fas fa-cogs text-primary me-2"></i> 技术信息
                 </h5>
             </div>
             <div class="card-body">
-                <dl class="row">
-                    <dt class="col-sm-4"><i class="fas fa-key"></i> 密钥长度</dt>
+                <dl class="row mb-0">
+                    <dt class="col-sm-4 text-muted"><i class="fas fa-key me-2"></i> 密钥长度</dt>
                     <dd class="col-sm-8">{{ ca.key_size }}位</dd>
 
-<!-- 修改有效期显示部分 -->
-<dt class="col-sm-4"><i class="fas fa-calendar-check"></i> 有效期</dt>
-<dd class="col-sm-8">
-    {{ ca.days_valid }}天
-    {% if ca.created_at %}
-        (至 {{ (ca.created_at + timedelta(days=ca.days_valid)).strftime('%Y-%m-%d') }})
-    {% endif %}
-</dd>
+                    <dt class="col-sm-4 text-muted"><i class="fas fa-calendar-check me-2"></i> 有效期</dt>
+                    <dd class="col-sm-8">
+                        {{ ca.days_valid }}天
+                        {% if ca.created_at %}
+                            (至 {{ (ca.created_at + timedelta(days=ca.days_valid)).strftime('%Y-%m-%d') }})
+                        {% endif %}
+                    </dd>
 
-                    <dt class="col-sm-4"><i class="fas fa-user"></i> 创建者</dt>
+                    <dt class="col-sm-4 text-muted"><i class="fas fa-user me-2"></i> 创建者</dt>
                     <dd class="col-sm-8">{{ get_username(ca.created_by) }}</dd>
 
-                    <dt class="col-sm-4"><i class="fas fa-clock"></i> 创建时间</dt>
+                    <dt class="col-sm-4 text-muted"><i class="fas fa-clock me-2"></i> 创建时间</dt>
                     <dd class="col-sm-8">{{ ca.created_at.strftime('%Y-%m-%d %H:%M') }}</dd>
 
-                    <dt class="col-sm-4"><i class="fas fa-file-certificate"></i> 证书路径</dt>
+                    <dt class="col-sm-4 text-muted"><i class="fas fa-file-certificate me-2"></i> 证书路径</dt>
                     <dd class="col-sm-8">
                         <code class="text-truncate d-block" style="max-width: 250px;">{{ ca.cert_path }}</code>
                         <small class="text-muted">拼音路径: {{ ca.cert_path|to_pinyin }}</small>
                     </dd>
 
-                    <dt class="col-sm-4"><i class="fas fa-lock"></i> 私钥路径</dt>
+                    <dt class="col-sm-4 text-muted"><i class="fas fa-lock me-2"></i> 私钥路径</dt>
                     <dd class="col-sm-8">
                         <code class="text-truncate d-block" style="max-width: 250px;">{{ ca.key_path }}</code>
                         <small class="text-muted">拼音路径: {{ ca.key_path|to_pinyin }}</small>
@@ -108,60 +107,70 @@
 </div>
 
 <div class="card">
-    <div class="card-header d-flex justify-content-between align-items-center">
+    <div class="card-header bg-light d-flex justify-content-between align-items-center">
         <h5 class="card-title mb-0">
-            <i class="fas fa-certificate"></i> 颁发的证书
-            <span class="badge bg-primary rounded-pill">{{ certificates|length }}</span>
+            <i class="fas fa-certificate text-primary me-2"></i> 颁发的证书
+            <span class="badge bg-primary rounded-pill ms-2">{{ certificates|length }}</span>
         </h5>
         <div>
             <a href="{{ url_for('create_certificate_view') }}?ca_id={{ ca.id }}"
                class="btn btn-sm btn-primary"
                data-bs-toggle="tooltip"
                title="使用此CA颁发新证书">
-                <i class="fas fa-plus"></i> 创建证书
+                <i class="fas fa-plus me-1"></i> 创建证书
             </a>
         </div>
     </div>
-    <div class="card-body">
+    <div class="card-body p-0">
         {% if certificates %}
         <div class="table-responsive">
-            <table class="table table-sm table-hover">
+            <table class="table table-hover mb-0">
                 <thead class="table-light">
                     <tr>
-                        <th>ID</th>
+                        <th class="ps-4">ID</th>
                         <th>通用名</th>
                         <th>状态</th>
                         <th>有效期至</th>
                         <th>创建时间</th>
-                        <th>操作</th>
+                        <th class="pe-4">操作</th>
                     </tr>
                 </thead>
                 <tbody>
                     {% for cert in certificates %}
                     <tr>
-                        <td>{{ cert.id }}</td>
-                        <td>{{ cert.common_name }}</td>
+                        <td class="ps-4">{{ cert.id }}</td>
+                        <td>
+                            <a href="{{ url_for('certificate_detail', cert_id=cert.id) }}" class="text-decoration-none">
+                                {{ cert.common_name }}
+                            </a>
+                        </td>
                         <td>
                             {% if cert.status == 'active' %}
-                                <span class="badge bg-success"><i class="fas fa-check-circle"></i> 有效</span>
+                                <span class="badge bg-success rounded-pill">
+                                    <i class="fas fa-check-circle me-1"></i> 有效
+                                </span>
                             {% elif cert.status == 'revoked' %}
-                                <span class="badge bg-danger"><i class="fas fa-ban"></i> 已吊销</span>
+                                <span class="badge bg-danger rounded-pill">
+                                    <i class="fas fa-ban me-1"></i> 已吊销
+                                </span>
                             {% else %}
-                                <span class="badge bg-secondary"><i class="fas fa-clock"></i> 已过期</span>
+                                <span class="badge bg-secondary rounded-pill">
+                                    <i class="fas fa-clock me-1"></i> 已过期
+                                </span>
                             {% endif %}
                         </td>
                         <td>{{ cert.expires_at.strftime('%Y-%m-%d') }}</td>
                         <td>{{ cert.created_at.strftime('%Y-%m-%d') }}</td>
-                        <td>
+                        <td class="pe-4">
                             <div class="btn-group btn-group-sm">
                                 <a href="{{ url_for('certificate_detail', cert_id=cert.id) }}"
-                                   class="btn btn-info"
+                                   class="btn btn-outline-primary"
                                    data-bs-toggle="tooltip"
                                    title="查看证书详情">
                                     <i class="fas fa-eye"></i>
                                 </a>
                                 <a href="{{ url_for('export_certificate_view', cert_id=cert.id) }}"
-                                   class="btn btn-success"
+                                   class="btn btn-outline-success"
                                    data-bs-toggle="tooltip"
                                    title="导出证书">
                                     <i class="fas fa-download"></i>
@@ -174,11 +183,11 @@
             </table>
         </div>
         {% else %}
-        <div class="text-center py-4">
-            <i class="fas fa-certificate fa-3x text-muted mb-3"></i>
-            <h5 class="text-muted">该CA尚未颁发任何证书</h5>
-            <a href="{{ url_for('create_certificate_view') }}?ca_id={{ ca.id }}" class="btn btn-primary mt-2">
-                <i class="fas fa-plus"></i> 立即创建证书
+        <div class="text-center py-5">
+            <i class="fas fa-certificate fa-4x text-muted mb-4"></i>
+            <h5 class="text-muted mb-3">该CA尚未颁发任何证书</h5>
+            <a href="{{ url_for('create_certificate_view') }}?ca_id={{ ca.id }}" class="btn btn-primary">
+                <i class="fas fa-plus me-2"></i> 立即创建证书
             </a>
         </div>
         {% endif %}