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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: var(--text-primary);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

/* 头部 */
.header {
    text-align: center;
    padding: 40px 20px;
    background: var(--bg-primary);
    border-radius: 20px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-lg);
}

.header h1 {
    font-size: 2.5rem;
    color: var(--primary-dark);
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* 步骤指示器 */
.steps-indicator {
    display: flex;
    justify-content: space-between;
    background: var(--bg-primary);
    padding: 30px 20px;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    position: relative;
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 1;
    flex: 1;
}

.step-number {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    color: var(--text-secondary);
    border: 3px solid var(--border-color);
    transition: all 0.3s ease;
    margin-bottom: 10px;
}

.step-item.active .step-number {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: scale(1.1);
}

.step-item.completed .step-number {
    background: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

.step-item.skipped .step-number {
    background: var(--text-secondary);
    color: white;
    border-color: var(--border-color);
    opacity: 0.5;
    text-decoration: line-through;
}

.step-item.skipped .step-label {
    opacity: 0.5;
    text-decoration: line-through;
}

.step-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
}

.step-item.active .step-label {
    color: var(--primary-color);
    font-weight: 600;
}

/* 步骤之间的连接线 */
.step-item:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 25px;
    left: 50%;
    width: 100%;
    height: 3px;
    background: var(--border-color);
    z-index: -1;
}

.step-item.completed:not(:last-child)::after {
    background: var(--success-color);
}

/* 步骤区域 */
.step-section {
    background: var(--bg-primary);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
    margin-bottom: 30px;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.step-section h2 {
    font-size: 2rem;
    color: var(--primary-dark);
    margin-bottom: 10px;
}

.step-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

/* 平台卡片网格 */
.platform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.platform-card {
    display: block;
    position: relative;
    background: var(--bg-secondary);
    border: 3px solid var(--border-color);
    border-radius: 15px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.platform-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.platform-card input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.platform-card:has(input:checked) {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
}

.platform-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.platform-info h3 {
    font-size: 1.3rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.platform-tag {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.platform-status {
    margin-top: 15px;
}

.status-badge {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.status-badge.official {
    background: #d1fae5;
    color: #065f46;
}

.status-badge.limited {
    background: #fef3c7;
    color: #92400e;
}

/* 已选择平台提示 */
.selected-platforms {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border: 2px solid var(--primary-color);
    border-radius: 10px;
    padding: 15px 20px;
    margin-bottom: 20px;
}

.selected-platforms p {
    color: var(--primary-dark);
    font-weight: 500;
}

#selectedList {
    color: var(--primary-color);
    font-weight: 600;
}

/* 警告提示 */
.warnings {
    margin-bottom: 20px;
}

.warning-item {
    background: #fef3c7;
    border-left: 4px solid var(--warning-color);
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.warning-item .icon {
    font-size: 1.5rem;
}

.warning-item .content {
    flex: 1;
}

.warning-item h4 {
    color: #92400e;
    margin-bottom: 5px;
}

.warning-item p {
    color: #78350f;
    font-size: 0.95rem;
}

/* 方案卡片 */
.solution-cards {
    display: grid;
    gap: 25px;
    margin-bottom: 30px;
}

/* 推荐说明 */
.recommendation-reason {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(5, 150, 105, 0.1) 100%);
    border: 2px solid var(--success-color);
    border-radius: 15px;
    padding: 20px 25px;
    margin-bottom: 30px;
    animation: slideDown 0.5s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reason-header {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--success-color);
    margin-bottom: 10px;
}

.reason-content {
    color: var(--text-primary);
    line-height: 1.6;
}

.solution-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    z-index: 1;
}

.solution-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.solution-card.selected {
    border-color: var(--primary-color);
    border-width: 3px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
    position: relative;
}

.solution-card.selected::before {
    content: '✓ 已选择';
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--success-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    z-index: 10;
}

.solution-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.solution-badge {
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: white;
    background: rgba(255, 255, 255, 0.3);
}

.solution-badge.recommended {
    background: #10b981;
}

.solution-badge.alternative {
    background: var(--warning-color);
}

.solution-badge.safe {
    background: var(--success-color);
}

.solution-header h3 {
    color: white;
    font-size: 1.4rem;
}

.solution-body {
    padding: 25px;
}

.solution-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.solution-features ul,
.solution-requirements ul {
    list-style: none;
    margin-bottom: 20px;
}

.solution-features li,
.solution-requirements li {
    padding: 8px 0;
    color: var(--text-primary);
}

.solution-requirements {
    background: white;
    padding: 20px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.solution-requirements p {
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--primary-dark);
}

.recommendation-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 15px 0;
}

.recommendation-tags .tag {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* 平台指南卡片 */
.platform-guide {
    background: var(--bg-secondary);
    border-radius: 15px;
    padding: 30px;
    margin-bottom: 25px;
    border: 2px solid var(--border-color);
}

.platform-guide-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.platform-guide-icon {
    font-size: 2.5rem;
}

.platform-guide-title h3 {
    font-size: 1.5rem;
    color: var(--primary-dark);
    margin-bottom: 5px;
}

.guide-steps {
    margin-top: 20px;
}

.guide-step {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    padding: 20px;
    background: white;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
}

.guide-step-number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.1rem;
}

.guide-step-content {
    flex: 1;
}

.guide-step-content h4 {
    font-size: 1.1rem;
    color: var(--primary-dark);
    margin-bottom: 10px;
}

.guide-step-content p,
.guide-step-content li {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 8px;
}

.code-box {
    background: #1f2937;
    color: #10b981;
    padding: 12px 16px;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    margin: 10px 0;
    word-break: break-all;
}

.tip-box {
    background: #e0f2fe;
    border-left: 4px solid #0284c7;
    padding: 12px 16px;
    border-radius: 8px;
    margin: 10px 0;
}

.tip-box .tip-icon {
    margin-right: 5px;
}

/* 按钮样式 */
.btn {
    padding: 14px 28px;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #059669 100%);
    color: white;
    font-size: 1.1rem;
    padding: 16px 32px;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.4);
}

.action-buttons {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 2px solid var(--border-color);
}

/* 完成检查清单 */
.completion-checklist {
    background: #f0fdf4;
    border: 2px solid var(--success-color);
    border-radius: 15px;
    padding: 25px;
    margin: 30px 0;
}

.completion-checklist h3 {
    color: #065f46;
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.completion-checklist label {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.completion-checklist input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--success-color);
}

.completion-checklist label:hover {
    color: var(--success-color);
}

/* 模态框 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-content {
    background: white;
    border-radius: 20px;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow: auto;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 25px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 10;
}

.modal-header h2 {
    color: white;
    font-size: 1.3rem;
}

.close-btn {
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.modal-body {
    padding: 30px;
}

.modal-footer {
    padding: 20px 30px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 15px;
}

/* 插件安装步骤 */
.plugin-steps {
    margin-bottom: 30px;
}

/* 版本信息 */
.version-info {
    background: #f0fdf4;
    border: 2px solid var(--success-color);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 25px;
}

.version-info h4 {
    color: #065f46;
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.version-table {
    overflow-x: auto;
    margin-top: 15px;
}

.version-table table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
}

.version-table thead {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.version-table th {
    color: white;
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
}

.version-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.version-table tr:last-child td {
    border-bottom: none;
}

.version-table tr.recommended {
    background: #d1fae5;
}

.version-table tr.recommended td {
    font-weight: 500;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge.success {
    background: #10b981;
    color: white;
}

.badge.info {
    background: #3b82f6;
    color: white;
}

.badge.warning {
    background: #f59e0b;
    color: white;
}

/* 警告框 */
.warning-box {
    background: #fef3c7;
    border-left: 4px solid var(--warning-color);
    padding: 12px 16px;
    border-radius: 6px;
    margin: 10px 0;
}

.warning-icon {
    margin-right: 5px;
}

/* 信息框 */
.info-box {
    background: #dbeafe;
    border-left: 4px solid #3b82f6;
    padding: 12px 16px;
    border-radius: 6px;
    margin: 10px 0;
}

.info-icon {
    margin-right: 5px;
}

.plugin-step {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: 10px;
}

.step-num {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.3rem;
}

.step-content h4 {
    font-size: 1.2rem;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.step-content p {
    color: var(--text-secondary);
    margin-bottom: 10px;
    line-height: 1.6;
}

.step-content ol {
    margin-left: 20px;
}

.step-content ol li {
    color: var(--text-secondary);
    margin-bottom: 8px;
    line-height: 1.6;
}

.path {
    background: #1f2937;
    color: #10b981;
    padding: 10px 15px;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    display: block;
    margin: 10px 0;
}

.download-link {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    margin: 10px 0;
    transition: all 0.3s ease;
}

.download-link:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.tip {
    background: #fef3c7;
    color: #92400e;
    padding: 10px 15px;
    border-radius: 6px;
    font-size: 0.9rem;
    display: block;
    margin: 10px 0;
}

.success-box {
    background: #d1fae5;
    color: #065f46;
    padding: 15px 20px;
    border-radius: 8px;
    margin: 15px 0;
}

.troubleshooting {
    background: #fef3c7;
    padding: 20px;
    border-radius: 10px;
    margin-top: 20px;
}

.troubleshooting h4 {
    color: #92400e;
    margin-bottom: 15px;
}

.troubleshooting details {
    margin-bottom: 10px;
    border-bottom: 1px solid rgba(146, 64, 15, 0.2);
    padding-bottom: 10px;
}

.troubleshooting details summary {
    cursor: pointer;
    font-weight: 600;
    color: #78350f;
    padding: 5px 0;
}

.troubleshooting details[open] summary {
    margin-bottom: 10px;
}

.troubleshooting details p {
    color: #92400e;
    padding-left: 15px;
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header h1 {
        font-size: 1.8rem;
    }

    .steps-indicator {
        flex-wrap: wrap;
        gap: 10px;
    }

    .step-item:not(:last-child)::after {
        display: none;
    }

    .step-number {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .platform-grid {
        grid-template-columns: 1fr;
    }

    .action-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .step-section {
        padding: 20px;
    }

    .modal-content {
        margin: 10px;
    }

    .plugin-step {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .header {
        padding: 20px 15px;
    }

    .header h1 {
        font-size: 1.5rem;
    }

    .subtitle {
        font-size: 1rem;
    }
}