HTML+CSS新技能：快速打造响应式步骤条，秒变网页设计达人！

<div class="progress-container">
        <div class="progress-bar">
            <div class="progress" id="progress"></div>
            <div class="step active">1<span class="step-label">步骤 1</span></div>
            <div class="step">2<span class="step-label">步骤 2</span></div>
            <div class="step">3<span class="step-label">步骤 3</span></div>
            <div class="step">4<span class="step-label">步骤 4</span></div>
        </div>
        <button id="prevBtn" onclick="changeStep(-1)" disabled>上一步</button>
        <button id="nextBtn" onclick="changeStep(1)">下一步</button>
    </div>

body {
            font-family: Arial, sans-serif;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
            background-color: #f0f0f0;
        }
        .progress-container {
            width: 100%;
            max-width: 600px;
            padding: 20px;
        }
        .progress-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: relative;
            margin-bottom: 30px;
        }
        .progress-bar::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 0;
            transform: translateY(-50%);
            height: 4px;
            width: 100%;
            background-color: #ddd;
            z-index: 1;
        }
        .progress {
            position: absolute;
            top: 50%;
            left: 0;
            transform: translateY(-50%);
            height: 4px;
            width: 0;
            background-color: #4CAF50;
            z-index: 2;
            transition: width 0.5s ease;
        }
        .step {
            width: 30px;
            height: 30px;
            background-color: #fff;
            border: 3px solid #ddd;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            font-weight: bold;
            color: #999;
            z-index: 3;
            transition: all 0.3s ease;
        }
        .step.active {
            border-color: #4CAF50;
            color: #4CAF50;
        }
        .step-label {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%);
            text-align: center;
            font-size: 14px;
            color: #666;
            margin-top: 8px;
        }
        button {
            padding: 10px 20px;
            font-size: 16px;
            background-color: #4CAF50;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }
        button:hover {
            background-color: #45a049;
        }
        button:disabled {
            background-color: #ddd;
            cursor: not-allowed;
        }

<script>
        let currentStep = 1;
        const totalSteps = 4;
        const progress = document.getElementById('progress');
        const prevBtn = document.getElementById('prevBtn');
        const nextBtn = document.getElementById('nextBtn');
        const steps = document.querySelectorAll('.step');
        function updateButtons() {
            prevBtn.disabled = currentStep === 1;
            nextBtn.disabled = currentStep === totalSteps;
            nextBtn.textContent = currentStep === totalSteps ? '完成' : '下一步';
        }
        function updateProgressBar() {
            const percent = ((currentStep - 1) / (totalSteps - 1)) * 100;
            progress.style.width = `${percent}%`;
        }
        function updateSteps() {
            steps.forEach((step, index) => {
                if (index < currentStep) {
                    step.classList.add('active');
                } else {
                    step.classList.remove('active');
                }
            });
        }
        function changeStep(n) {
            currentStep += n;
            if (currentStep < 1) currentStep = 1;
            if (currentStep > totalSteps) currentStep = totalSteps;
            updateButtons();
            updateProgressBar();
            updateSteps();
        }
        updateButtons();
    </script>