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