/* 基础样式 */
body {
    font-family: 'Microsoft YaHei', sans-serif;
    margin: 0;
    display: flex;
    min-height: 100vh;
    line-height: 1.6;
}

/* 左侧导航栏 */
#sidebar {
    width: 250px;
    background-color: #f5f7fa;
    padding: 20px;
    box-sizing: border-box;
    border-right: 1px solid #ddd;
    overflow-y: auto;
    position: fixed;
    height: 100vh;
}

#sidebar h2 {
    margin-top: 0;
    color: #2c3e50;
}

#sidebar ul {
    list-style: none;
    padding-left: 0;
}

#sidebar li {
    margin-bottom: 10px;
}

#sidebar a {
    text-decoration: none;
    color: #34495e;
    display: block;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

#sidebar a:hover,
#sidebar a.active {
    background-color: #3498db;
    color: white;
}

/* Logo 区域 */
.logo-header {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    border-bottom: 1px solid #ddd;
    margin-bottom: 20px;
}

.logo-header img {
    max-width: 180px;
    height: auto;
}

/* 右侧内容区 */
#content {
    flex: 1;
    margin-left: 250px;
    padding: 30px;
    box-sizing: border-box;
}

.section {
    display: none;
    margin-bottom: 40px;
}

.section.active {
    display: block;
}

h3 {
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 5px;
}

.tip-box {
    background-color: #e8f4fd;
    border-left: 4px solid #3498db;
    padding: 10px 15px;
    margin: 15px 0;
}

.example-box {
    background-color: #f9f9f9;
    border: 1px dashed #ccc;
    padding: 15px;
    margin: 15px 0;
    border-radius: 4px;
    position: relative;
}

.copy-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #27ae60;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 0.8em;
}

.copy-btn:hover {
    background: #219653;
}

/* 交底书多步骤向导 */
.disclosure-wizard {
    background: #ffffff;
    border-radius: 12px;
    border: 1px solid #e0e7ef;
    box-shadow: 0 8px 24px rgba(52, 152, 219, 0.08);
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.wizard-progress {
    padding: 20px;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.12), rgba(41, 128, 185, 0.12));
    border-bottom: 1px solid rgba(52, 152, 219, 0.2);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: #eaf3fb;
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: 12px;
}

.progress-bar-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(135deg, #3498db, #2980b9);
    border-radius: 999px;
    transition: width 0.4s ease;
}

.progress-meta {
    display: flex;
    justify-content: space-between;
    color: #1d5a85;
    font-size: 0.9rem;
    font-weight: 600;
}

.wizard-body {
    display: flex;
    min-height: 420px;
}

.wizard-steps {
    width: 240px;
    border-right: 1px solid #eef2f7;
    background: #f8fbff;
    display: flex;
    flex-direction: column;
}

.wizard-step {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 0.95rem;
    color: #2c3e50;
    transition: background 0.3s ease, color 0.3s ease;
    border-left: 4px solid transparent;
}

.wizard-step .step-indicator {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid #c8d7e5;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: #2ecc71;
}

.wizard-step .step-indicator::before {
    content: '';
}

.wizard-step.active {
    background: rgba(52, 152, 219, 0.12);
    border-left-color: #3498db;
    color: #1f3a56;
    font-weight: 600;
}

.wizard-step.completed .step-indicator {
    background: #2ecc71;
    border-color: #2ecc71;
    color: #fff;
    content: '✔';
}

.wizard-step.completed .step-indicator::before {
    content: '✔';
    font-size: 0.7rem;
}

.wizard-step.error {
    border-left-color: #e74c3c;
}

.wizard-step.error .step-indicator {
    border-color: #e74c3c;
    color: #e74c3c;
}

.wizard-panels {
    flex: 1;
    padding: 30px;
}

.wizard-panel {
    display: none;
    animation: fadeIn 0.25s ease;
}

.wizard-panel.active {
    display: block;
}

.wizard-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 20px 24px;
    border-top: 1px solid #eef2f7;
    background: #fafcff;
}

.wizard-nav-btn {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 10px 18px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.wizard-nav-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 8px 16px rgba(52, 152, 219, 0.24);
}

.wizard-nav-btn:disabled {
    background: #bdc3c7;
    cursor: not-allowed;
    box-shadow: none;
}

.wizard-nav-btn.secondary {
    background: #ecf3f9;
    color: #3c6382;
    border: 1px solid #d5e2ef;
}

.input-field.error {
    border-color: #e74c3c;
    background: rgba(231, 76, 60, 0.08);
}

.validation-message {
    color: #e74c3c;
    font-size: 0.85rem;
    margin-top: 8px;
    min-height: 18px;
}

.validation-message.success {
    color: #2ecc71;
}

.version-history {
    background: #f7fbff;
    border: 1px solid #dbe9f6;
    border-radius: 8px;
    padding: 16px 20px;
    margin-bottom: 20px;
}

.version-history h4 {
    margin-top: 0;
}

.version-history ul {
    list-style: none;
    padding-left: 0;
    margin: 10px 0 0 0;
}

.version-history li {
    padding: 6px 0;
    border-bottom: 1px dashed #c9dcec;
    font-size: 0.9rem;
}

.version-history li:last-child {
    border-bottom: none;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 申请流程样式 */
.process-container {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    border: 1px solid rgba(224, 224, 224, 0.5);
    margin: 20px 0;
}

.process-header {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    padding: 20px;
    text-align: center;
}

.process-header h4 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

.process-header p {
    margin: 5px 0 0 0;
    font-size: 14px;
    opacity: 0.9;
}

.process-steps {
    padding: 20px;
}

.process-step {
    display: flex;
    margin-bottom: 20px;
    position: relative;
    animation: fadeInUp 0.6s ease-out;
}

.process-step:last-child {
    margin-bottom: 0;
}

.step-number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: bold;
    margin-right: 16px;
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.3);
    position: relative;
    z-index: 2;
}

.step-content {
    flex: 1;
    background: rgba(248, 249, 250, 0.8);
    padding: 16px;
    border-radius: 8px;
    border: 1px solid rgba(224, 224, 224, 0.5);
    position: relative;
    transition: all 0.3s ease;
}

.step-content:hover {
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.15);
    transform: translateY(-1px);
    border-color: rgba(52, 152, 219, 0.3);
}

.step-title {
    font-size: 16px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 8px;
}

.step-description {
    color: #34495e;
    line-height: 1.6;
    font-size: 14px;
    margin-bottom: 8px;
}

.step-responsible {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(52, 152, 219, 0.1);
    color: #3498db;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.process-step:not(:last-child) .step-content::after {
    content: '';
    position: absolute;
    left: -28px;
    top: 40px;
    bottom: -20px;
    width: 2px;
    background: linear-gradient(to bottom, #3498db, #e3f2fd);
    z-index: 1;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 输入框样式 */
.input-section {
    background-color: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
}

.input-section h4 {
    color: #2c3e50;
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 16px;
}

.input-field {
    width: 100%;
    min-height: 100px;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: 'Microsoft YaHei', sans-serif;
    font-size: 14px;
    line-height: 1.6;
    resize: vertical;
    box-sizing: border-box;
}

.input-field:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.input-field.short {
    min-height: 40px;
}

/* 输出功能样式 */
.export-buttons {
    display: flex;
    gap: 15px;
    margin: 20px 0;
}

.export-btn {
    background: linear-gradient(135deg, #27ae60 0%, #2ecc71 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.export-btn:hover {
    background: linear-gradient(135deg, #219a52 0%, #27ae60 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(39, 174, 96, 0.3);
}

.export-btn.secondary {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
}

.export-btn.secondary:hover {
    background: linear-gradient(135deg, #2980b9 0%, #1f4e79 100%);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

/* FAQ样式 */
.faq-container {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    border: 1px solid rgba(224, 224, 224, 0.5);
    margin: 20px 0;
}

.faq-item {
    border-bottom: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

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

.faq-question {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
}

.faq-question:hover {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    border-left-color: #3498db;
}

.faq-question.active {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    border-left-color: #3498db;
}

.faq-question h4 {
    margin: 0;
    color: #2c3e50;
    font-size: 16px;
    font-weight: 600;
    flex: 1;
    padding-right: 15px;
}

.faq-icon {
    font-size: 18px;
    color: #3498db;
    transition: transform 0.3s ease;
}

.faq-question.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.faq-answer.active {
    padding: 20px;
    max-height: 1000px;
}

.faq-answer p {
    margin: 0 0 15px 0;
    color: #34495e;
    line-height: 1.7;
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

.faq-answer ul {
    margin: 10px 0;
    padding-left: 20px;
}

.faq-answer li {
    margin-bottom: 8px;
    color: #34495e;
    line-height: 1.6;
}

.faq-highlight {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    border-left: 4px solid #f39c12;
    padding: 15px;
    margin: 15px 0;
    border-radius: 4px;
}

.faq-warning {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    border-left: 4px solid #dc3545;
    padding: 15px;
    margin: 15px 0;
    border-radius: 4px;
}

.faq-info {
    background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
    border-left: 4px solid #17a2b8;
    padding: 15px;
    margin: 15px 0;
    border-radius: 4px;
}

/* 撰写前准备样式 */
.preparation-container {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    border: 1px solid rgba(224, 224, 224, 0.5);
    margin: 20px 0;
}

.preparation-header {
    background: linear-gradient(135deg, #27ae60 0%, #2ecc71 100%);
    color: white;
    padding: 20px;
    text-align: center;
}

.preparation-header h4 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

.preparation-header p {
    margin: 5px 0 0 0;
    font-size: 14px;
    opacity: 0.9;
}

.preparation-content {
    padding: 20px;
}

.preparation-step {
    margin-bottom: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #27ae60;
}

.preparation-step h5 {
    color: #2c3e50;
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 16px;
    font-weight: 600;
}

.preparation-step ul {
    margin: 10px 0;
    padding-left: 20px;
}

.preparation-step li {
    margin-bottom: 8px;
    color: #34495e;
    line-height: 1.6;
}

.preparation-step strong {
    color: #2c3e50;
}

.preparation-highlight {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    border-left: 4px solid #f39c12;
    padding: 15px;
    margin: 15px 0;
    border-radius: 4px;
}

.preparation-warning {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    border-left: 4px solid #dc3545;
    padding: 15px;
    margin: 15px 0;
    border-radius: 4px;
}

.preparation-info {
    background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
    border-left: 4px solid #17a2b8;
    padding: 15px;
    margin: 15px 0;
    border-radius: 4px;
}

.website-list {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 15px;
    margin: 15px 0;
}

.website-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #e9ecef;
}

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

.website-name {
    font-weight: 600;
    color: #2c3e50;
}

.website-url {
    color: #3498db;
    text-decoration: none;
    font-size: 14px;
}

.website-url:hover {
    text-decoration: underline;
}

.website-description {
    color: #6c757d;
    font-size: 13px;
    margin-top: 5px;
}

.template-section {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
}

.template-section h5 {
    color: #2c3e50;
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 16px;
    font-weight: 600;
}

.template-content {
    background: white;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    padding: 15px;
    margin: 10px 0;
}

.template-content h6 {
    color: #495057;
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 14px;
    font-weight: 600;
}

.template-content p {
    margin: 8px 0;
    color: #6c757d;
    font-size: 14px;
    line-height: 1.5;
}

.template-content ul {
    margin: 8px 0;
    padding-left: 20px;
}

.template-content li {
    margin-bottom: 5px;
    color: #6c757d;
    font-size: 14px;
    line-height: 1.4;
}

.patent-table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
    background: white;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.patent-table th {
    background: #3498db;
    color: white;
    padding: 12px;
    text-align: left;
    font-weight: 600;
    font-size: 14px;
}

.patent-table td {
    padding: 12px;
    border-bottom: 1px solid #e9ecef;
    font-size: 13px;
    line-height: 1.4;
}

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

.patent-table tr:nth-child(even) {
    background: #f8f9fa;
}