/* 基础样式 */
:root {
    --primary-color: #4F46E5;
    --primary-light: #818CF8;
    --primary-dark: #3730A3;
    --secondary-color: #10B981;
    --accent-color: #F59E0B;
    --danger-color: #EF4444;
    --success-color: #22C55E;
    --warning-color: #F59E0B;
    
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 1rem;
}

/* 头部样式 */
.header {
    text-align: center;
    margin-bottom: 2rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.title {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.subtitle {
    font-size: 1.1rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
    font-weight: 500;
}

/* 进度条样式 */
.progress-section {
    margin-top: 1.5rem;
}

.progress-bar {
    width: 100%;
    height: 12px;
    background-color: var(--gray-200);
    border-radius: 6px;
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success-color) 0%, var(--secondary-color) 100%);
    width: 0%;
    transition: width 0.3s ease;
    border-radius: 6px;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-text {
    margin-top: 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-700);
}

/* 按钮样式 */
.action-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--gray-500) 0%, var(--gray-600) 100%);
    color: white;
}

.btn-secondary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    background: linear-gradient(135deg, var(--gray-600) 0%, var(--gray-700) 100%);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent-color) 0%, #D97706 100%);
    color: white;
}

.btn-accent:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    background: linear-gradient(135deg, #D97706 0%, #B45309 100%);
}

/* 装备区块样式 */
.equipment-sections {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    overflow: hidden;
    transition: var(--transition);
}

.section:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.section-header {
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    border-bottom: 1px solid var(--gray-200);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.section-header:hover {
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
}

.section-header h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-800);
    margin: 0;
}

.toggle-icon {
    font-size: 1rem;
    color: var(--gray-500);
    transition: transform 0.2s ease;
}

.section.collapsed .toggle-icon {
    transform: rotate(-90deg);
}

.section-content {
    display: block;
    transition: all 0.3s ease;
}

.section.collapsed .section-content {
    display: none;
}

/* 装备项目样式 */
.equipment-item {
    border-bottom: 1px solid var(--gray-100);
    transition: var(--transition);
}

.equipment-item:last-child {
    border-bottom: none;
}

.equipment-item:hover {
    background-color: var(--gray-50);
}

.equipment-item.important {
    border-left: 4px solid var(--danger-color);
    background: linear-gradient(90deg, rgba(239, 68, 68, 0.05) 0%, transparent 100%);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    padding: 1.25rem;
    cursor: pointer;
    gap: 1rem;
    transition: var(--transition);
}

.checkbox-label:hover {
    background-color: rgba(79, 70, 229, 0.02);
}

/* 自定义复选框 */
.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border: 2px solid var(--gray-300);
    border-radius: 6px;
    background-color: white;
    position: relative;
    transition: var(--transition);
    margin-top: 2px;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: linear-gradient(135deg, var(--success-color) 0%, var(--secondary-color) 100%);
    border-color: var(--success-color);
    transform: scale(1.05);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 14px;
    font-weight: bold;
}

.item-content {
    flex: 1;
    min-width: 0;
}

.item-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
    line-height: 1.4;
}

.item-details {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.5;
}

/* 重要提醒样式 */
.important-notes {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-left: 4px solid var(--warning-color);
}

.important-notes h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.important-notes ul {
    list-style: none;
    padding-left: 0;
}

.important-notes li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-100);
    font-size: 0.95rem;
    line-height: 1.6;
}

.important-notes li:last-child {
    border-bottom: none;
}

.important-notes strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* 页脚样式 */
.footer {
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.footer p {
    margin: 0.5rem 0;
    color: var(--gray-600);
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0.75rem;
    }
    
    .title {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .header {
        padding: 1.5rem;
    }
    
    .action-buttons {
        gap: 0.75rem;
    }
    
    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .checkbox-label {
        padding: 1rem;
        gap: 0.75rem;
    }
    
    .item-name {
        font-size: 0.95rem;
    }
    
    .item-details {
        font-size: 0.85rem;
    }
    
    .section-header {
        padding: 1.25rem;
    }
    
    .section-header h2 {
        font-size: 1.1rem;
    }
    
    .important-notes {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .action-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .title {
        font-size: 1.75rem;
    }
    
    .checkbox-label {
        padding: 0.875rem;
    }
}

/* 打印样式 */
@media print {
    body {
        background: white;
    }
    
    .action-buttons,
    .footer {
        display: none;
    }
    
    .section {
        border: 1px solid var(--gray-300);
        box-shadow: none;
        break-inside: avoid;
        margin-bottom: 1rem;
    }
    
    .section-content {
        display: block !important;
    }
    
    .toggle-icon {
        display: none;
    }
}

/* 动画效果 */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section {
    animation: slideIn 0.4s ease-out;
}

.section:nth-child(1) { animation-delay: 0.1s; }
.section:nth-child(2) { animation-delay: 0.2s; }
.section:nth-child(3) { animation-delay: 0.3s; }
.section:nth-child(4) { animation-delay: 0.4s; }
.section:nth-child(5) { animation-delay: 0.5s; }

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
}

/* 高对比度支持 */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #000080;
        --secondary-color: #006400;
        --gray-600: #000000;
        --gray-700: #000000;
        --gray-800: #000000;
    }
    
    .section {
        border: 2px solid var(--gray-400);
    }
    
    .checkmark {
        border-width: 3px;
    }
}

/* 动画减少偏好 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}