/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

/* 头部样式 */
.header {
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: #fff;
    padding: 30px;
    text-align: center;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.header h1 i {
    font-size: 2rem;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 通用section样式 */
section {
    padding: 30px;
    border-bottom: 1px solid #eee;
}

section:last-child {
    border-bottom: none;
}

/* 提示信息样式 */
.tip {
    background-color: #e7f3ff;
    border-left: 4px solid #2196F3;
    padding: 10px 15px;
    margin-top: 15px;
    border-radius: 4px;
    font-size: 0.95rem;
}

.tip i {
    color: #2196F3;
    margin-right: 8px;
}

h2 {
    color: #1e3c72;
    margin-bottom: 20px;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

h3 {
    color: #2a5298;
    margin-bottom: 15px;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 规则说明区样式 */
.rules-content {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid #2a5298;
}

.rules-content p {
    margin-bottom: 15px;
}

.rules-content ul {
    list-style-type: none;
    padding-left: 0;
}

.rules-content li {
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
}

.rules-content li:before {
    content: "•";
    color: #2a5298;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* 计算器区域样式 */
.input-container {
    display: flex;
    gap: 30px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.input-group {
    flex: 1;
    min-width: 300px;
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.input-group.highlight {
    border: 2px solid #2a5298;
    box-shadow: 0 0 10px rgba(42, 82, 152, 0.1);
}

.form-group {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.form-group label {
    width: 100px;
    font-weight: 500;
}

.form-group input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

/* 分数输入框特殊样式 */
.form-group.score-input {
    position: relative;
    justify-content: center;
}

.form-group.score-input input {
    font-size: 1.5rem;
    text-align: center;
    padding: 15px 10px;
    border: 2px solid #ced4da;
    transition: all 0.3s;
}

.form-group.score-input input:focus {
    border-color: #2a5298;
    box-shadow: 0 0 0 3px rgba(42, 82, 152, 0.25);
}

.score-unit {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    color: #6c757d;
}

.form-group input:focus {
    outline: none;
    border-color: #2a5298;
    box-shadow: 0 0 0 2px rgba(42, 82, 152, 0.25);
}

.form-group span {
    margin-left: 5px;
    color: #6c757d;
}

/* 比例设置样式 */
.ratio-container {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e9ecef;
    margin-bottom: 30px;
}

.ratio-presets {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.ratio-btn {
    padding: 8px 16px;
    background-color: #fff;
    border: 1px solid #ced4da;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
}

.ratio-btn:hover {
    background-color: #e9ecef;
}

.ratio-btn.active {
    background-color: #2a5298;
    color: #fff;
    border-color: #2a5298;
}

.custom-ratio {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: flex-end;
}

.custom-ratio .form-group {
    margin-bottom: 0;
}

.ratio-hint {
    width: 100%;
    margin-top: 10px;
    font-size: 0.9rem;
    color: #6c757d;
}

/* 按钮样式 */
.button-group {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.calculate-btn {
    background-color: #2a5298;
    color: #fff;
}

.calculate-btn:hover {
    background-color: #1e3c72;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.reset-btn {
    background-color: #6c757d;
    color: #fff;
}

.reset-btn:hover {
    background-color: #5a6268;
}


/* 结果区域样式 */
.result-section {
    background-color: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.result-content {
    margin-bottom: 20px;
}

.result-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background-color: #fff;
    border-radius: 4px;
    margin-bottom: 10px;
    transition: transform 0.3s;
}

.result-item:hover {
    transform: translateX(5px);
}

.result-item.highlight {
    border-left: 4px solid #2a5298;
    background-color: #f0f4f8;
    padding: 20px 15px;
}

.result-item.leading {
    border-left: 4px solid #28a745;
    background-color: #f8fff9;
}

.result-item.trailing {
    border-left: 4px solid #dc3545;
    background-color: #fff8f8;
}

.result-label {
    width: 150px;
    font-weight: 500;
}

.result-value {
    font-size: 1.2rem;
    font-weight: bold;
    margin-right: 10px;
}

.result-status {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.result-status.leading {
    background-color: #d4edda;
    color: #155724;
}

.result-status.trailing {
    background-color: #f8d7da;
    color: #721c24;
}

.result-status.tie {
    background-color: #e2e3e5;
    color: #383d41;
}

.result-hint {
    margin-left: 10px;
    font-size: 0.9rem;
    color: #6c757d;
}

.result-summary {
    padding: 15px;
    background-color: #fff;
    border-radius: 4px;
    border-left: 4px solid #28a745;
}

/* FAQ区域样式 */
.faq-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.faq-item {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e9ecef;
    transition: transform 0.3s;
}

.faq-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.faq-item h3 {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

/* 页脚样式 */
.footer {
    background-color: #f8f9fa;
    text-align: center;
    padding: 20px;
    color: #6c757d;
    font-size: 0.9rem;
}

/* 工具提示样式 */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #333;
    color: #fff;
    padding: 12px 24px;
    border-radius: 4px;
    z-index: 1000;
    transition: opacity 0.3s;
}

/* 隐藏类 */
.hidden {
    display: none;
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.result-section {
    animation: fadeIn 0.5s ease-out;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .input-container {
        flex-direction: column;
        gap: 20px;
    }
    
    .input-group {
        min-width: 100%;
    }
    
    .button-group {
        justify-content: center;
    }
    
    .ratio-presets {
        justify-content: center;
    }
    
    .custom-ratio {
        justify-content: center;
    }
    
    .faq-content {
        grid-template-columns: 1fr;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    section {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .header h1 {
        font-size: 1.8rem;
        flex-direction: column;
        gap: 10px;
    }
    
    .result-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .result-label {
        width: 100%;
    }
}