.calculator-container[data-v-8c0333c4]{width:100%;padding:20px 0}.calculator-main[data-v-8c0333c4]{width:100%;margin:0 auto 24px;background:#fff;border-radius:6px;padding:24px;box-shadow:0 2px 8px #0000000f}.display-section[data-v-8c0333c4]{background:linear-gradient(135deg,#1f2937,#111827);border-radius:6px;padding:24px;margin-bottom:16px;box-shadow:0 4px 12px #00000026;min-height:120px;display:flex;flex-direction:column;justify-content:flex-end}.expression[data-v-8c0333c4]{font-size:16px;color:#9ca3af;text-align:right;margin-bottom:8px;word-wrap:break-word;min-height:24px}.result[data-v-8c0333c4]{font-size:36px;color:#fff;text-align:right;font-weight:600;word-wrap:break-word}.mode-switch[data-v-8c0333c4]{margin-bottom:16px;display:flex;justify-content:center}.radio-group[data-v-8c0333c4]{display:flex;gap:20px}.radio-group label[data-v-8c0333c4]{display:flex;align-items:center;gap:6px;cursor:pointer}.button-grid[data-v-8c0333c4]{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-bottom:24px}.calc-btn[data-v-8c0333c4]{height:56px;font-size:16px;font-weight:500;border-radius:3px;transition:all .2s;padding:0;border:1px solid;cursor:pointer;display:flex;align-items:center;justify-content:center}.num-btn[data-v-8c0333c4]{background:#f3f4f6;border-color:#e5e7eb;color:#1f2937}.num-btn[data-v-8c0333c4]:hover{background:#e5e7eb}.op-btn[data-v-8c0333c4]{background:#fef3c7;border-color:#fde68a;color:#d97706}.op-btn[data-v-8c0333c4]:hover{background:#fde68a}.func-btn[data-v-8c0333c4]{background:#fee2e2;border-color:#fecaca;color:#dc2626}.func-btn[data-v-8c0333c4]:hover{background:#fecaca}.sci-btn[data-v-8c0333c4]{background:#dbeafe;border-color:#bfdbfe;color:#2563eb}.sci-btn[data-v-8c0333c4]:hover{background:#bfdbfe}.equal-btn[data-v-8c0333c4]{background:linear-gradient(135deg,#23a894,#1e8e7d);border-color:#23a894;color:#fff}.equal-btn[data-v-8c0333c4]:hover:not(:disabled){background:linear-gradient(135deg,#1e8e7d,#1a7a6b)}.equal-btn[data-v-8c0333c4]:disabled{opacity:.5;cursor:not-allowed}.history-section[data-v-8c0333c4],.help-section[data-v-8c0333c4]{width:100%;margin:0 auto 24px;background:#fff;border-radius:6px;padding:24px;box-shadow:0 2px 8px #0000000f}.section-title[data-v-8c0333c4]{font-size:18px;font-weight:600;color:#374151;margin:0 0 16px;display:flex;align-items:center}.section-title i[data-v-8c0333c4]{color:#23a894}.mr-2[data-v-8c0333c4]{margin-right:8px}.history-list[data-v-8c0333c4]{max-height:300px;overflow-y:auto;overflow-x:hidden;margin-bottom:12px}.history-item[data-v-8c0333c4]{padding:12px;margin-bottom:8px;background:#f9fafb;border-radius:6px;cursor:pointer;transition:all .2s}.history-item[data-v-8c0333c4]:hover{background:#f3f4f6;transform:translate(4px)}.history-expression[data-v-8c0333c4]{font-size:14px;color:#6b7280;margin-bottom:4px}.history-result[data-v-8c0333c4]{font-size:16px;color:#23a894;font-weight:600}.clear-history-btn[data-v-8c0333c4]{width:100%;padding:10px;border:1px solid #dcdfe6;border-radius:6px;background:#fff;cursor:pointer;transition:all .3s}.clear-history-btn[data-v-8c0333c4]:hover{color:#23a894;border-color:#23a894}.help-content[data-v-8c0333c4]{display:grid;gap:12px}.help-item[data-v-8c0333c4]{display:flex;align-items:flex-start;gap:12px;padding:12px;background:#f9fafb;border-radius:6px}.help-item i[data-v-8c0333c4]{color:#10b981;margin-top:2px}.help-item div[data-v-8c0333c4]{font-size:14px;color:#6b7280}