diff --git a/.cargo/config-docker.toml b/.cargo/config-docker.toml
new file mode 100644
index 0000000..efe75fc
--- /dev/null
+++ b/.cargo/config-docker.toml
@@ -0,0 +1,15 @@
+# Cargo config for Docker builds (used by Dockerfile via COPY)
+# 与 .cargo/config.toml 区分：后者是 Windows 本地开发用
+#
+# rsproxy.cn 镜像（rustcc 维护，国内最稳）
+# 由 scripts/setup-runner-mirrors.sh 同步推荐；runner 端也建议用同样配置
+
+[source.crates-io]
+replace-with = "rsproxy-sparse"
+
+[source.rsproxy-sparse]
+registry = "sparse+https://rsproxy.cn/index/"
+
+[net]
+git-fetch-with-cli = true
+EOF
\ No newline at end of file
diff --git a/scripts/setup-runner-mirrors.sh b/scripts/setup-runner-mirrors.sh
new file mode 100644
index 0000000..06f9bf8
--- /dev/null
+++ b/scripts/setup-runner-mirrors.sh
@@ -0,0 +1,160 @@
+#!/usr/bin/env bash
+# setup-runner-mirrors.sh —— Gitea Actions runner 国内网络加速配置
+#
+# 目的：让 workflow 在国内服务器上跑得更快
+# 范围：Docker 镜像拉取 / crates.io 依赖下载 / git clone
+# 适用：在 hermes-runner (ubuntu-22.04) 上以 root 跑一次
+#
+# 用法：
+#   chmod +x scripts/setup-runner-mirrors.sh
+#   sudo ./scripts/setup-runner-mirrors.sh
+#
+# 回滚：
+#   sudo ./scripts/setup-runner-mirrors.sh --undo
+
+set -euo pipefail
+
+# ============ 镜像源配置 ============
+# Docker Hub 镜像源（选一个最稳的）
+DOCKER_HUB_MIRROR="https://docker.m.daocloud.io"
+# ghcr.io 镜像源（GitHub Container Registry）
+GHCR_MIRROR="https://ghcr.nju.edu.cn"
+# crates.io 镜像源（rsproxy - rustcc 维护）
+CARGO_MIRROR="sparse+https://rsproxy.cn/index/"
+# github.com git clone 镜像（ghproxy - 通用）
+GIT_MIRROR="https://ghproxy.com/https://github.com"
+
+# ============ 日志 ============
+log() { echo -e "\033[1;32m[$(date +%H:%M:%S)]\033[0m $*"; }
+warn() { echo -e "\033[1;33m[WARN]\033[0m $*" >&2; }
+err() { echo -e "\033[1;31m[ERR]\033[0m $*" >&2; }
+
+# ============ 权限检查 ============
+if [[ $EUID -ne 0 ]]; then
+    err "请用 root 运行：sudo $0"
+    exit 1
+fi
+
+# ============ 回滚模式 ============
+if [[ "${1:-}" == "--undo" ]]; then
+    log "回滚模式：恢复所有备份"
+    if [[ -f /etc/docker/daemon.json.bak ]]; then
+        mv /etc/docker/daemon.json.bak /etc/docker/daemon.json
+        systemctl restart docker || true
+        log "✅ /etc/docker/daemon.json 已恢复"
+    else
+        warn "未找到 daemon.json.bak"
+    fi
+    if [[ -f /root/.cargo/config.toml.bak ]]; then
+        mv /root/.cargo/config.toml.bak /root/.cargo/config.toml
+        log "✅ /root/.cargo/config.toml 已恢复"
+    fi
+    exit 0
+fi
+
+# ============ 1. Docker daemon registry-mirrors ============
+log "[1/3] 配置 Docker daemon registry-mirrors..."
+
+DAEMON_CONFIG="/etc/docker/daemon.json"
+mkdir -p /etc/docker
+
+# 备份现有配置
+if [[ -f "$DAEMON_CONFIG" ]] && [[ ! -f "${DAEMON_CONFIG}.bak" ]]; then
+    cp "$DAEMON_CONFIG" "${DAEMON_CONFIG}.bak"
+    log "  备份原配置到 ${DAEMON_CONFIG}.bak"
+fi
+
+# 合并现有配置 + mirrors
+# 使用 python 而非 jq 保证镜像源可用
+python3 - "$DAEMON_CONFIG" "$DOCKER_HUB_MIRROR" "$GHCR_MIRROR" <<'PYEOF'
+import json, sys, os
+
+config_path = sys.argv[1]
+docker_hub_mirror = sys.argv[2]
+ghcr_mirror = sys.argv[3]
+
+# 读取现有配置
+existing = {}
+if os.path.exists(config_path):
+    try:
+        with open(config_path) as f:
+            existing = json.load(f)
+    except json.JSONDecodeError:
+        existing = {}
+
+# 合并 registry-mirrors
+mirrors = existing.get("registry-mirrors", [])
+# 去重添加
+for m in [docker_hub_mirror, ghcr_mirror]:
+    if m not in mirrors:
+        mirrors.append(m)
+
+existing["registry-mirrors"] = mirrors
+
+# 写回
+with open(config_path, "w") as f:
+    json.dump(existing, f, indent=2)
+
+print(f"  mirrors 已设置: {mirrors}")
+PYEOF
+
+log "  重启 docker daemon..."
+systemctl restart docker
+sleep 2
+docker info 2>/dev/null | grep -A 5 "Registry Mirrors" || warn "  Registry Mirrors 未显示，可能需要手动验证"
+
+# ============ 2. Cargo registry mirror ============
+log "[2/3] 配置 /root/.cargo/config.toml (crates.io 镜像)..."
+
+mkdir -p /root/.cargo
+if [[ -f /root/.cargo/config.toml ]] && [[ ! -f /root/.cargo/config.toml.bak ]]; then
+    cp /root/.cargo/config.toml /root/.cargo/config.toml.bak
+fi
+
+cat > /root/.cargo/config.toml <<EOF
+# rsproxy.cn 镜像（rustcc 维护，国内最稳）
+# 由 scripts/setup-runner-mirrors.sh 自动生成
+
+[source.crates-io]
+replace-with = "rsproxy-sparse"
+
+[source.rsproxy-sparse]
+registry = "$CARGO_MIRROR"
+
+[net]
+git-fetch-with-cli = true
+EOF
+
+log "  ✅ /root/.cargo/config.toml 已配置 rsproxy 镜像"
+
+# ============ 3. Git 配置（GitHub 镜像 fallback）============
+log "[3/3] 配置 git url rewrite（GitHub 镜像 fallback）..."
+
+git config --global url."$GIT_MIRROR".insteadOf "https://github.com"
+log "  ✅ git config: github.com → $GIT_MIRROR"
+
+# ============ 4. 验证 ============
+log "验证加速效果..."
+
+# 验证 docker mirror
+log "  Docker mirror 测试（拉 hello-world）："
+docker pull hello-world 2>&1 | tail -3 || warn "  hello-world 拉取失败"
+
+# 验证 cargo mirror
+log "  Cargo mirror 测试（cargo search）："
+cargo search serde --limit 1 2>&1 | head -3 || warn "  cargo search 失败"
+
+# ============ 完成 ============
+echo
+log "✅ Runner 镜像加速配置完成！"
+echo
+echo "效果："
+echo "  - Docker pull（actions / base images）：通过 DaoCloud/NJU 镜像加速"
+echo "  - cargo build（Dockerfile 内）：通过 rsproxy 镜像加速"
+echo "  - git clone（Dockerfile 内如有 git 依赖）：通过 ghproxy 镜像加速"
+echo
+echo "回滚命令：sudo $0 --undo"
+echo
+echo "下一步："
+echo "  1. 推送仓库触发 workflow 验证"
+echo "  2. workflow 中 Dockerfile COPY .cargo/config-docker.toml 后 cargo build 走镜像"
\ No newline at end of file