diff --git a/download_base_direct_aria2.sh b/download_base_direct_aria2.sh
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+#!/bin/bash
+
+# =============================================================================
+# Bench2Drive Base Dataset Download Script (Direct aria2c with TLS fix)
+# =============================================================================
+# This script downloads the Base dataset using aria2c directly with proper TLS settings
+# It auto-downloads aria2c binary if not installed
+# Usage: bash download_base_direct_aria2.sh [download_dir] [threads]
+# =============================================================================
+
+set -e
+
+# 配置参数
+REPO_ID="rethinklab/Bench2Drive"
+DATASET_NAME="Bench2Drive-Base"
+DEFAULT_DOWNLOAD_DIR="./Bench2Drive-Base"
+DEFAULT_THREADS=8
+
+# 用户提供的镜像 URL
+JSON_URL="https://git.hyuyao.cn/sam/binary-mirror/raw/branch/main/bench2drive_base_1000.json"
+ARIA2_URL="https://git.hyuyao.cn/sam/binary-mirror/raw/branch/main/aria2-x86_64-linux-musl_static.zip"
+
+# 下载目录和线程数
+DOWNLOAD_DIR="${1:-$DEFAULT_DOWNLOAD_DIR}"
+THREADS="${2:-$DEFAULT_THREADS}"
+
+# 本地 aria2c 路径
+LOCAL_ARIA2_DIR="./.aria2"
+LOCAL_ARIA2_BIN="$LOCAL_ARIA2_DIR/aria2c"
+ARIA2_BIN="aria2c"
+
+# 文件列表 URL
+FILE_LIST_URL="https://hf-mirror.com/datasets/rethinklab/Bench2Drive/resolve/main/"
+
+# 颜色输出
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+CYAN='\033[0;36m'
+NC='\033[0m'
+
+print_info() { echo -e "${BLUE}[INFO]${NC} $1"; }
+print_success() { echo -e "${GREEN}[SUCCESS]${NC} $1"; }
+print_warning() { echo -e "${YELLOW}[WARNING]${NC} $1"; }
+print_error() { echo -e "${RED}[ERROR]${NC} $1"; }
+print_highlight() { echo -e "${CYAN}$1${NC}"; }
+
+show_banner() {
+    echo ""
+    print_highlight "============================================================================="
+    print_highlight "  Bench2Drive Base Dataset Downloader (Direct aria2c with TLS fix)"
+    print_highlight "============================================================================="
+    echo ""
+}
+
+# 下载并安装本地 aria2c
+download_local_aria2() {
+    print_info "Downloading aria2c from mirror..."
+    print_info "URL: $ARIA2_URL"
+    
+    mkdir -p "$LOCAL_ARIA2_DIR"
+    local temp_zip="$LOCAL_ARIA2_DIR/aria2.zip"
+    
+    # 下载 aria2c 压缩包
+    if ! curl -k -L -o "$temp_zip" "$ARIA2_URL"; then
+        print_error "Failed to download aria2c"
+        return 1
+    fi
+    
+    # 解压
+    print_info "Extracting aria2c..."
+    if command -v unzip &> /dev/null; then
+        unzip -o "$temp_zip" -d "$LOCAL_ARIA2_DIR"
+    else
+        print_error "unzip is not installed. Please install it:"
+        echo "  Ubuntu/Debian: sudo apt install unzip"
+        exit 1
+    fi
+    
+    rm -f "$temp_zip"
+    
+    # 验证
+    if [ -f "$LOCAL_ARIA2_BIN" ]; then
+        chmod +x "$LOCAL_ARIA2_BIN"
+        print_success "aria2c installed to: $LOCAL_ARIA2_BIN"
+        "$LOCAL_ARIA2_BIN" --version | head -1
+        ARIA2_BIN="$LOCAL_ARIA2_BIN"
+        return 0
+    else
+        print_error "Failed to extract aria2c"
+        return 1
+    fi
+}
+
+# 检查依赖
+check_dependencies() {
+    print_info "Checking dependencies..."
+    
+    # 检查 aria2c
+    if command -v aria2c &> /dev/null; then
+        print_success "System aria2c is installed"
+        ARIA2_VERSION=$(aria2c --version | head -1)
+        print_info "Version: $ARIA2_VERSION"
+    elif [ -f "$LOCAL_ARIA2_BIN" ]; then
+        print_success "Local aria2c found: $LOCAL_ARIA2_BIN"
+        ARIA2_BIN="$LOCAL_ARIA2_BIN"
+    else
+        print_warning "aria2c not found, will download from mirror..."
+        download_local_aria2
+    fi
+    
+    # 检查 curl
+    if ! command -v curl &> /dev/null; then
+        print_error "curl is not installed."
+        exit 1
+    fi
+    print_success "curl is installed"
+    
+    # 检查 unzip
+    if ! command -v unzip &> /dev/null; then
+        print_warning "unzip is not installed (needed for downloading aria2c)"
+        print_info "Please install: sudo apt install unzip"
+    fi
+}
+
+# 下载文件列表
+download_file_list() {
+    print_info "Downloading file list from mirror..."
+    print_info "URL: $JSON_URL"
+    
+    local temp_json="/tmp/bench2drive_base_1000.json"
+    
+    # 从镜像下载 JSON
+    if curl -k -L -o "$temp_json" "$JSON_URL"; then
+        if [ -f "$temp_json" ] && [ -s "$temp_json" ]; then
+            # 使用 python3 解析 JSON
+            cat "$temp_json" | python3 -c "import json,sys; data=json.load(sys.stdin); print('\n'.join(data.keys()))" > /tmp/bench2drive_files.txt 2>/dev/null
+            
+            # 如果 python3 失败，使用 grep 提取 .tar.gz 文件名
+            if [ ! -s /tmp/bench2drive_files.txt ]; then
+                cat "$temp_json" | grep -o '"[^"]*\.tar\.gz"' | sed 's/"//g' > /tmp/bench2drive_files.txt
+            fi
+            
+            FILE_COUNT=$(wc -l < /tmp/bench2drive_files.txt)
+            print_success "Downloaded file list from mirror"
+            print_info "Found $FILE_COUNT files to download"
+            rm -f "$temp_json"
+            return 0
+        fi
+    fi
+    
+    print_error "Failed to download file list from mirror"
+    exit 1
+}
+
+# 创建 aria2c 输入文件
+create_aria2_input() {
+    print_info "Creating aria2c input file..."
+    
+    local input_file="/tmp/bench2drive_aria2_input.txt"
+    > "$input_file"
+    
+    while IFS= read -r filename; do
+        if [ -n "$filename" ]; then
+            echo "${FILE_LIST_URL}${filename}" >> "$input_file"
+            echo "  dir=${DOWNLOAD_DIR}" >> "$input_file"
+            echo "  out=${filename}" >> "$input_file"
+        fi
+    done < /tmp/bench2drive_files.txt
+    
+    print_success "Created aria2c input file with $(wc -l < "$input_file") lines"
+}
+
+# 获取 aria2c 选项
+get_aria2_options() {
+    local opts=""
+    
+    # 基础选项
+    opts="--continue=true"
+    opts="$opts --max-concurrent-downloads=5"
+    opts="$opts --split=$THREADS"
+    opts="$opts --max-connection-per-server=$THREADS"
+    opts="$opts --min-split-size=10M"
+    opts="$opts --max-tries=5"
+    opts="$opts --retry-wait=30"
+    opts="$opts --timeout=600"
+    opts="$opts --connect-timeout=60"
+    opts="$opts --allow-overwrite=false"
+    opts="$opts --auto-file-renaming=false"
+    opts="$opts --conditional-get=true"
+    opts="$opts --console-log-level=warn"
+    opts="$opts --summary-interval=0"
+    
+    # TLS 选项 - 显式指定 CA 证书路径
+    if [ -f "/etc/pki/tls/certs/ca-bundle.crt" ]; then
+        opts="$opts --ca-certificate=/etc/pki/tls/certs/ca-bundle.crt"
+        opts="$opts --check-certificate=true"
+        print_info "Using CA certificate: /etc/pki/tls/certs/ca-bundle.crt"
+    elif [ -f "/etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem" ]; then
+        opts="$opts --ca-certificate=/etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem"
+        opts="$opts --check-certificate=true"
+        print_info "Using CA certificate: /etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem"
+    else
+        opts="$opts --check-certificate=false"
+        print_warning "CA certificate not found, disabling certificate verification"
+    fi
+    
+    echo "$opts"
+}
+
+# 设置环境
+setup_environment() {
+    print_info "Setting up environment..."
+    export HF_ENDPOINT="https://hf-mirror.com"
+    print_success "HF_ENDPOINT set to: $HF_ENDPOINT"
+    
+    # 创建下载目录
+    if [ ! -d "$DOWNLOAD_DIR" ]; then
+        mkdir -p "$DOWNLOAD_DIR"
+        print_success "Created download directory: $DOWNLOAD_DIR"
+    else
+        print_warning "Download directory already exists: $DOWNLOAD_DIR"
+    fi
+}
+
+# 下载数据集
+download_dataset() {
+    print_info "Starting download..."
+    print_info "Download directory: $DOWNLOAD_DIR"
+    print_info "Threads per file: $THREADS"
+    print_info "Dataset size: ~400GB (1000 clips)"
+    echo ""
+    
+    local aria2_opts=$(get_aria2_options)
+    local input_file="/tmp/bench2drive_aria2_input.txt"
+    
+    print_info "Running aria2c..."
+    echo ""
+    
+    # 执行下载
+    "$ARIA2_BIN" $aria2_opts --input-file="$input_file"
+    
+    if [ $? -eq 0 ]; then
+        echo ""
+        print_success "Download completed successfully!"
+    else
+        echo ""
+        print_error "Download failed or interrupted."
+        print_info "You can resume by running this script again."
+        exit 1
+    fi
+}
+
+# 验证下载
+verify_download() {
+    print_info "Verifying downloaded files..."
+    
+    local downloaded_count=$(find "$DOWNLOAD_DIR" -name "*.tar.gz" 2>/dev/null | wc -l)
+    local expected_count=1000
+    
+    echo ""
+    print_info "Downloaded files: $downloaded_count / $expected_count"
+    
+    if [ "$downloaded_count" -eq "$expected_count" ]; then
+        print_success "All files downloaded successfully!"
+    elif [ "$downloaded_count" -gt 0 ]; then
+        print_warning "Partial download: $downloaded_count / $expected_count"
+        print_info "Run the script again to resume."
+    else
+        print_error "No .tar.gz files found in $DOWNLOAD_DIR"
+    fi
+}
+
+# 清理
+cleanup() {
+    rm -f /tmp/bench2drive_files.txt /tmp/bench2drive_aria2_input.txt
+}
+
+# 显示帮助
+show_help() {
+    cat << EOF
+Bench2Drive Base Dataset Download Script
+
+Usage:
+    bash $0 [download_directory] [threads]
+
+Arguments:
+    download_directory    Directory to save the dataset (default: ./Bench2Drive-Base)
+    threads               Number of download threads per file (default: 8, max: 16)
+
+Examples:
+    bash $0
+    bash $0 ./Bench2Drive-Base 16
+
+Features:
+    - Auto-downloads aria2c binary if not installed
+    - Downloads file list from mirror (git.hyuyao.cn)
+    - Resume capability (断点续传)
+    - Multi-threaded download
+
+EOF
+}
+
+# 主函数
+main() {
+    if [ "$1" == "-h" ] || [ "$1" == "--help" ]; then
+        show_help
+        exit 0
+    fi
+    
+    show_banner
+    
+    # 验证线程数
+    if ! [[ "$THREADS" =~ ^[1-9][0-9]*$ ]] || [ "$THREADS" -gt 16 ]; then
+        print_error "Invalid thread count: $THREADS"
+        exit 1
+    fi
+    
+    trap cleanup EXIT
+    
+    check_dependencies
+    setup_environment
+    download_file_list
+    create_aria2_input
+    download_dataset
+    verify_download
+    
+    echo ""
+    print_highlight "============================================================================="
+    print_success "All done! Dataset saved to: $DOWNLOAD_DIR"
+    print_highlight "============================================================================="
+}
+
+main "$@"