AI 生成: 一个简洁美观的网页计算器，支持加、减、乘、除和清除功能，使用纯 HTML/CSS/JavaScript 实现。

2026-09-28 20:03:44 +08:00
commit 824623f7ee
4 changed files with 401 additions and 0 deletions
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+/* ===== 全局重置 ===== */
+* {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+  font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
+}
+
+body {
+  min-height: 100vh;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  background: linear-gradient(135deg, #1e1e2f 0%, #2d2d44 100%);
+  padding: 20px;
+}
+
+/* ===== 计算器容器 ===== */
+.calculator {
+  width: 100%;
+  max-width: 360px;
+  background: #2a2a3d;
+  border-radius: 20px;
+  padding: 24px;
+  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45),
+              inset 0 1px 0 rgba(255, 255, 255, 0.05);
+}
+
+/* ===== 显示区域 ===== */
+.display {
+  background: #1b1b2a;
+  color: #f5f5f5;
+  font-size: 2.4rem;
+  font-weight: 300;
+  text-align: right;
+  padding: 20px 18px;
+  border-radius: 12px;
+  margin-bottom: 20px;
+  min-height: 80px;
+  word-wrap: break-word;
+  word-break: break-all;
+  overflow: hidden;
+  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.5);
+  letter-spacing: 1px;
+}
+
+/* ===== 按键网格 ===== */
+.keys {
+  display: grid;
+  grid-template-columns: repeat(4, 1fr);
+  gap: 12px;
+}
+
+/* ===== 按键基础样式 ===== */
+.key {
+  border: none;
+  outline: none;
+  cursor: pointer;
+  font-size: 1.4rem;
+  font-weight: 500;
+  color: #eaeaea;
+  background: #3a3a52;
+  border-radius: 12px;
+  padding: 18px 0;
+  transition: transform 0.08s ease, background 0.2s ease, box-shadow 0.2s ease;
+  user-select: none;
+  box-shadow: 0 4px 0 #26263a;
+}
+
+.key:hover {
+  background: #45456a;
+}
+
+.key:active {
+  transform: translateY(2px);
+  box-shadow: 0 2px 0 #26263a;
+}
+
+/* ===== 运算符按钮 ===== */
+.key-op {
+  background: #4a4a78;
+  color: #ffd166;
+  font-weight: 600;
+  box-shadow: 0 4px 0 #2e2e4d;
+}
+
+.key-op:hover {
+  background: #5a5a92;
+}
+
+/* ===== 清除按钮 ===== */
+.key-clear {
+  background: #e63946;
+  color: #fff;
+  font-weight: 600;
+  box-shadow: 0 4px 0 #a8232e;
+}
+
+.key-clear:hover {
+  background: #ff4d5a;
+}
+
+/* ===== 等号按钮（跨两行） ===== */
+.key-equals {
+  grid-row: span 2;
+  background: linear-gradient(180deg, #06d6a0, #04b184);
+  color: #fff;
+  font-weight: 700;
+  font-size: 1.6rem;
+  box-shadow: 0 4px 0 #028a66;
+}
+
+.key-equals:hover {
+  background: linear-gradient(180deg, #0be0aa, #05c492);
+}
+
+/* ===== 0 按钮跨两列 ===== */
+.key-zero {
+  grid-column: span 2;
+}
+
+/* ===== 响应式 ===== */
+@media (max-width: 400px) {
+  .display {
+    font-size: 1.9rem;
+    padding: 16px 14px;
+  }
+  .key {
+    font-size: 1.2rem;
+    padding: 15px 0;
+  }
+}