/* ========== 文档内容共享样式 ========== */

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

/* ========== 文档头部 ========== */
.doc-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 2px solid #e2e8f0;
}

.doc-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    flex-shrink: 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.doc-title {
    font-size: 32px;
    font-weight: 700;
    color: #1e293b;
    margin: 0 0 8px 0;
    line-height: 1.2;
}

.doc-subtitle {
    font-size: 16px;
    color: #64748b;
    margin: 0;
}

/* ========== 文档主体 ========== */
.doc-body {
    line-height: 1.8;
}

.section-title {
    font-size: 24px;
    font-weight: 600;
    color: #1e293b;
    margin: 40px 0 20px 0;
    padding-bottom: 12px;
    border-bottom: 2px solid #e2e8f0;
}

.text-content {
    font-size: 16px;
    color: #475569;
    line-height: 1.8;
    margin-bottom: 24px;
}

/* ========== 媒体占位符 ========== */
.media-placeholder {
    background: #f8fafc;
    border: 2px dashed #cbd5e1;
    border-radius: 16px;
    padding: 60px 40px;
    text-align: center;
    margin: 30px 0;
    transition: all 0.3s ease;
}

.media-placeholder:hover {
    background: #f1f5f9;
    border-color: #94a3b8;
}

.media-placeholder.video {
    background: #fef3c7;
    border-color: #fbbf24;
}

.media-placeholder.video:hover {
    background: #fde68a;
    border-color: #f59e0b;
}

.media-placeholder p {
    margin: 12px 0 0 0;
    font-size: 14px;
    color: #64748b;
    font-weight: 500;
}

/* ========== 步骤容器 ========== */
.docs-steps-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin: 30px 0;
}

.step-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s ease;
}

.step-item:hover {
    background: #ffffff;
    border-color: #2563eb;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.1);
    transform: translateX(4px);
}

.step-number {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: #2563eb;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.step-content {
    flex: 1;
}

.step-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: #1e293b;
    margin: 0 0 8px 0;
}

.step-content p {
    font-size: 15px;
    color: #64748b;
    margin: 0;
    line-height: 1.6;
}

/* ========== AI赋能亮点 ========== */
.ai-highlight {
    background: #eff6ff;
    border: 2px solid #3b82f6;
    border-radius: 20px;
    padding: 32px;
    margin: 40px 0;
    position: relative;
    overflow: hidden;
}

.ai-highlight::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: rgba(59, 130, 246, 0.1);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.ai-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #2563eb;
    color: white;
    padding: 10px 20px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    position: relative;
    z-index: 1;
}

.ai-highlight ul {
    list-style: none;
    padding: 0;
    margin: 0;
    position: relative;
    z-index: 1;
}

.ai-highlight li {
    font-size: 15px;
    color: #1e40af;
    margin-bottom: 16px;
    padding-left: 32px;
    position: relative;
    line-height: 1.6;
}

.ai-highlight li:last-child {
    margin-bottom: 0;
}

.ai-highlight li::before {
    content: '✨';
    position: absolute;
    left: 0;
    font-size: 20px;
}

.ai-highlight li strong {
    color: #1e3a8a;
    font-weight: 600;
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .doc-header {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }

    .doc-title {
        font-size: 24px;
    }

    .doc-subtitle {
        font-size: 14px;
    }

    .doc-icon {
        width: 64px;
        height: 64px;
        font-size: 28px;
    }

    .section-title {
        font-size: 20px;
    }

    .text-content {
        font-size: 15px;
    }

    .media-placeholder {
        padding: 40px 20px;
    }

    .step-item {
        flex-direction: column;
        gap: 16px;
    }

    .step-number {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }

    .ai-highlight {
        padding: 24px;
    }

    .ai-highlight li {
        font-size: 14px;
        padding-left: 28px;
    }
}