:root {
    --primary-color: #28a745;
    --secondary-color: #218838;
    --background-color: #f2f2f2;
    --text-color: #333;
    --border-color: #ddd;
    --header-text-color: #ffffff;
    --calculator-bg: #EAECF3;
    --button-gradient: linear-gradient(135deg, #F4F5F6, #fff);
    --button-shadow: inset 1px 1px 1px 0px rgba(230,244,255,0.8), inset -1px -1px 1px 0px rgba(40,48,85,0.3), 1px 1px 3px 0px rgba(40,50,85,0.1);
    --container-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
}



/* 主容器样式 */
.main-container {
    display: flex;
    justify-content: space-between;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.calculator-container {
    width: 65%;
    margin-right: 20px;
    margin-bottom: 20px;
    background-color: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 20px;
}

/* 侧边栏容器样式 */
.side-container {
    width: 30%;
    position: sticky;
    top: 20px;
    align-self: flex-start;
}

/* 计算器表格样式 */
.calculator table {
    width: 100%;
    border-spacing: 5px;
    border-collapse: separate;
    background: #EAECF3;
    padding: 5px;
    border-radius: 16px;
}

.calculator td {
    padding: 0;
    width: 20%;
}

/* 显示结果样式 */
.calculator .formula {
    min-height: 20px;
    font-size: 14px;
    color: #666;
    text-align: right;
    padding: 5px;
    margin-bottom: 5px;
    word-wrap: break-word;
}

.calculator input.result {
    width: 100%;
    height: 50px;
    margin-bottom: 10px;
    font-size: 24px;
    text-align: right;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: #fff;
    box-shadow: inset 1px 1px 1px 0 rgba(40,49,86,0.3);
    padding: 0 10px;
    box-sizing: border-box;
}

#result, #penalty-result, #benchmark-result, #mixed-result, #caseFeeResults, #arbitrationFeeResults {
    margin-top: 20px;
    padding: 15px;
    background-color: #e9ecef;
    border-radius: 5px;
    white-space: pre-wrap;
    font-family: monospace;
    font-size: 0.9rem;
}

/* 选择器按钮样式 */
.calculator-selector, .sub-calculator-selector {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
}

.calculator-selector button, .sub-calculator-selector button {
    flex: 1;
    padding: 10px;
    background-image: var(--button-gradient);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    color: #283155;
    font-size: 14px;
    box-shadow: var(--button-shadow);
    margin: 0 5px;
}

.calculator-selector button.active, .sub-calculator-selector button.active {
    background-image: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #fff;
}

.calculator-selector button:first-child,
.sub-calculator-selector button:first-child {
    border-top-left-radius: 4px;
    border-bottom-left-radius: 4px;
}

.calculator-selector button:last-child,
.sub-calculator-selector button:last-child {
    border-top-right-radius: 4px;
    border-bottom-right-radius: 4px;
}

/* 活动状态显示 */
.calculator-section, .sub-calculator {
    display: none;
}

.calculator-section.active, .sub-calculator.active {
    display: block;
}

/* 便签样式 */
.note-container {
    margin-top: 20px;
    width: 100%;
    box-shadow: var(--container-shadow);
    border-radius: 16px;
    background-color: var(--calculator-bg);
    padding: 15px;
    box-sizing: border-box;
    z-index: 1;
}

.note-container h3 {
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
    padding: 0 5px;
}

#temp-note {
    width: calc(100% - 10px);
    height: 120px;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 16px;
    font-size: 14px;
    resize: vertical;
    background-color: #fff;
    margin: 0 5px;
    box-sizing: border-box;
    box-shadow: inset 1px 1px 1px 0 rgba(40,49,86,0.3);
}

#temp-note:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 5px rgba(40,167,69,0.5);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-container {
        flex-direction: column;
    }

    .calculator-container,
    .side-container {
        width: 100%;
        margin-right: 0;
    }

    .side-container {
        position: static;
        margin-top: 20px;
    }

    .note-container {
        margin-top: 15px;
    }

    #temp-note {
        height: 80px;
    }

    .header-content {
        flex-direction: column;
        text-align: center;
    }

    .logo-container {
        margin-right: 0;
        margin-bottom: 0.5rem;
    }

    .title-container {
        text-align: center;
    }

    .site-title {
        font-size: 1.75rem;
    }

    .site-subtitle {
        font-size: 0.9rem;
    }
}

/* 其他样式调整 */
.explanation-container {
    width: auto;
    max-width: 300px;
    margin: 20px auto;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    padding: 20px;
    box-sizing: border-box;
}

/* h1, h2 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 1rem;
} */

.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: #34495e;
}

input[type="number"],
input[type="date"],
select {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    box-sizing: border-box;
}

input[type="number"]:focus,
input[type="date"]:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 5px rgba(40,167,69,0.5);
}

button {
    display: block;
    width: 100%;
    padding: 10px;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: var(--secondary-color);
}

#principal-uppercase,
#benchmark-principal-uppercase,
#penalty-principal-uppercase,
#mixed-principal-uppercase,
#caseAmount-uppercase,
#amount-uppercase {
    display: block;
    margin-top: 5px;
    font-size: 14px;
    color: #6c757d;
}

.calculator {
    width: 100%;
    box-shadow: var(--container-shadow);  /* 使用与临时便签相同的阴影变量 */
    border-radius: 16px;
    background-color: var(--calculator-bg);
    padding: 15px;
    box-sizing: border-box;
    position: sticky;
    top: 20px;
    z-index: 10;
}

#entrybox {
    background-color: #fff;
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 10px;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

#history, #answer {
    margin: 0;
    text-align: right;
    font-family: 'Arial', sans-serif;
}

#history {
    color: #888;
    font-size: 14px;
}

#answer {
    color: #333;
    font-size: 24px;
    font-weight: bold;
}

#buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.calculator button {
    width: 100%;
    height: 40px;
    font-size: 16px;
    cursor: pointer;
    border: none;
    background-color: #fff;
    transition: all 0.3s ease;
    border-radius: 8px;
    box-shadow: 
        inset 1px 1px 1px 0 rgba(230,244,255,0.8), 
        inset -1px -1px 1px 0 rgba(40,48,85,0.3), 
        1px 1px 3px 0 rgba(40,50,85,0.1);
    color: #283155;
    text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.05);
    background-image: linear-gradient(133deg, #f8f9fa, #e9ecef);
    user-select: none;
}

.calculator button:hover {
    background-image: linear-gradient(133deg, #e9ecef, #dee2e6);
    transform: translateY(-1px);
}

.calculator button:active {
    transform: translateY(1px);
    box-shadow: 
        inset -1px -1px 1px 0 rgba(230,244,255,0.8), 
        inset 1px 1px 1px 0 rgba(40,48,85,0.3);
}

.calculator .red {
    background-image: linear-gradient(133deg, #ff6b6b, #ff8787);
    color: #fff;
}

.calculator .red:hover {
    background-image: linear-gradient(133deg, #ff8787, #ffa8a8);
}

.calculator button[value="/"],
.calculator button[value="*"],
.calculator button[value="-"],
.calculator button[value="+"] {
    background-image: linear-gradient(133deg, #4dabf7, #339af0);
    color: #fff;
}

.calculator button[value="/"]:hover,
.calculator button[value="*"]:hover,
.calculator button[value="-"]:hover,
.calculator button[value="+"]:hover {
    background-image: linear-gradient(133deg, #339af0, #228be6);
}

#equal-button {
    background-image: linear-gradient(133deg, #51cf66, #40c057);
    color: #fff;
    grid-row: span 2;
    height: auto;
}

#equal-button:hover {
    background-image: linear-gradient(133deg, #40c057, #37b24d);
}

#zero-button {
    grid-column: span 2;
}

.invisible {
    visibility: hidden;
}