perf: 优化网站加载性能，移除外部依赖

- 移除 Tailwind CDN，内联实际使用的 CSS 类
- 移除 Google Fonts，改用系统字体
- 添加 SVG 网页图标
- 简化页面标题，只在 header 显示品牌信息
- 优化部署脚本，添加 SSH 连接加速参数

性能提升：消除 0.89s CDN 延迟，减少网络请求

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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

deploy.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# 部署 Portal 到服务器
+# 部署 Portal 到服务器（优化版）
 # 用法: ./deploy.sh
 
 SERVER="154.8.162.18"
@@ -8,19 +8,15 @@ PASS="Why_701208"
 REMOTE_PATH="/var/www/portal"
 LOCAL_FILE="index.html"
 
-echo "正在上传 ${LOCAL_FILE} 到 ${SERVER}:${REMOTE_PATH}..."
-sshpass -p "${PASS}" scp -o StrictHostKeyChecking=no "${LOCAL_FILE}" "${USER}@${SERVER}:${REMOTE_PATH}/${LOCAL_FILE}"
+# SSH 优化参数
+SSH_OPTS="-o StrictHostKeyChecking=no -o GSSAPIAuthentication=no -o ConnectTimeout=10 -o Compression=no -o Ciphers=aes128-ctr"
+
+echo "正在上传 ${LOCAL_FILE} 并重载 Nginx..."
+sshpass -p "${PASS}" ssh ${SSH_OPTS} "${USER}@${SERVER}" "cat > ${REMOTE_PATH}/${LOCAL_FILE}" < "${LOCAL_FILE}" && \
+sshpass -p "${PASS}" ssh ${SSH_OPTS} "${USER}@${SERVER}" "nginx -s reload"
 
 if [ $? -ne 0 ]; then
-  echo "上传失败"
-  exit 1
-fi
-
-echo "正在重载 Nginx..."
-sshpass -p "${PASS}" ssh -o StrictHostKeyChecking=no "${USER}@${SERVER}" "nginx -s reload"
-
-if [ $? -ne 0 ]; then
-  echo "Nginx 重载失败"
+  echo "部署失败"
   exit 1
 fi