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height: 40px; border-radius: 50%; border: 1px solid var(--border-subtle); background: var(--color-bg-card); cursor: pointer; font-size: 1.2rem; z-index: 100; transition: all 0.2s; display: flex; align-items: center; justify-content: center; } .theme-toggle:hover { transform: scale(1.1); } * { margin: 0; padding: 0; box-sizing: border-box; } body { font-family: var(--font-sans); background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); min-height: 100vh; padding: 20px; } .container { max-width: 500px; margin: 0 auto; } h1 { color: white; text-align: center; margin-bottom: 20px; text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2); } .card { background: white; border-radius: 20px; padding: 28px; box-shadow: 0 15px 50px rgba(0, 0, 0, 0.2); } .input-group { margin-bottom: 20px; } .input-group label { display: block; color: #666; font-size: 14px; margin-bottom: 8px; font-weight: 500; } .price-input { display: flex; background: #f8f8f8; border-radius: 12px; overflow: hidden; } .price-input span { padding: 16px; 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} .compare-item span:last-child { font-weight: 600; color: #333; } .breadcrumb { background: rgba(255, 255, 255, 0.95); padding: 8px 15px; border-radius: 20px; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1); font-size: 0.85rem; } .breadcrumb a { color: #667eea; text-decoration: none; } .breadcrumb a:hover { text-decoration: underline; } .breadcrumb span { color: #999; margin: 0 5px; } </style>  <link rel="preconnect" href="https://fonts.googleapis.com" /> <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin /> <link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap" rel="stylesheet" /> </head> <body> <button class="theme-toggle" onclick="toggleTheme()" aria-label="切换主题"> <span id="theme-icon">🌙</span> </button> <nav class="breadcrumb"> <a href="../../index.html">首页</a> <span>�?/span> 折扣计算器Pro </nav> <div class="container"> <h1>🏷�?折扣计算�?/h1> <div class="card"> <div class="input-group"> <label>原价</label> <div class="price-input"> <span>¥</span> <input type="number" id="originalPrice" placeholder="输入原价" oninput="calculate()" /> </div> </div> <div class="input-group"> <label>折扣</label> <div class="discount-grid"> <button class="discount-btn" onclick="setDiscount(95)">95�?/button> <button class="discount-btn" onclick="setDiscount(90)">9�?/button> <button class="discount-btn" onclick="setDiscount(85)">85�?/button> <button class="discount-btn" onclick="setDiscount(80)">8�?/button> <button class="discount-btn" onclick="setDiscount(75)">75�?/button> <button class="discount-btn active" onclick="setDiscount(70)">7�?/button> <button class="discount-btn" onclick="setDiscount(60)">6�?/button> <button class="discount-btn" onclick="setDiscount(50)">5�?/button> </div> <div class="custom-discount"> <span style="color: #666">自定�?</span> <input type="number" id="customDiscount" placeholder="�? 65 表示65�? oninput="customDiscountChange()" /> <span style="color: #666">�?/span> </div> </div> <div class="results"> <div class="result-item"> <span class="result-label">原价</span> <span class="result-value" id="origPrice">¥0.00</span> </div> <div class="result-item"> <span class="result-label">折扣�?/span> <span class="result-value" id="discountRate">70%</span> </div> <div class="result-item total"> <span class="result-label">折后�?/span> <span class="result-value" id="finalPrice">¥0.00</span> </div> </div> <div class="savings"> <div class="amount" id="savedAmount">节省 ¥0.00</div> <div class="text"> 相当于打�? <span id="actualDiscount">70</span> 折，优惠�? <span id="savedPercent">30</span> % </div> </div> <div class="compare"> <h4>对比不同折扣</h4> <div id="compareList"></div> </div> </div> </div> <script> let currentDiscount = 70; function setDiscount(discount) { currentDiscount = discount; document.querySelectorAll(".discount-btn").forEach((btn) => { btn.classList.remove("active"); const btnDiscount = parseInt(btn.textContent); if (btnDiscount === discount || (discount === 90 && btn.textContent === "9�?)) { btn.classList.add("active"); } }); document.getElementById("customDiscount").value = ""; calculate(); } function customDiscountChange() { const custom = parseFloat(document.getElementById("customDiscount").value); if (!isNaN(custom) && custom > 0 && custom <= 100) { currentDiscount = custom; document .querySelectorAll(".discount-btn") .forEach((btn) => btn.classList.remove("active")); calculate(); } } function calculate() { const original = parseFloat(document.getElementById("originalPrice").value) || 0; const discountRate = currentDiscount / 100; const final = original * discountRate; const saved = original - final; document.getElementById("origPrice").textContent = "¥" + original.toFixed(2); document.getElementById("discountRate").textContent = currentDiscount + "%"; document.getElementById("finalPrice").textContent = "¥" + final.toFixed(2); document.getElementById("savedAmount").textContent = "节省 ¥" + saved.toFixed(2); document.getElementById("actualDiscount").textContent = currentDiscount; document.getElementById("savedPercent").textContent = 100 - currentDiscount; // Compare list const discounts = [95, 90, 85, 80, 75, 70, 60, 50]; const compareList = document.getElementById("compareList"); compareList.innerHTML = discounts .map((d) => { const price = (original * d) / 100; const save = original - price; return `<div class="compare-item" style="${d === currentDiscount ? "background: #fff0f8; border-radius: 8px; padding: 10px;" : ""}"> <span>${d}�?(�?{100 - d}%)</span> <span>¥${price.toFixed(2)} <small style="color: #e67e22;">(省�?{save.toFixed(2)})</small></span> </div>`; }) .join(""); } calculate(); // Theme toggle function toggleTheme() { const html = document.documentElement; const currentTheme = html.getAttribute("data-theme"); const newTheme = currentTheme === "light" ? "dark" : "light"; html.setAttribute("data-theme", newTheme); document.getElementById("theme-icon").textContent = newTheme === "light" ? "☀�? : "🌙"; localStorage.setItem("theme", newTheme); } // Load saved theme const savedTheme = localStorage.getItem("theme") || "dark"; if (savedTheme === "light") { document.documentElement.setAttribute("data-theme", "light"); document.getElementById("theme-icon").textContent = "☀�?; } </script> </body> </html>