/* 你面对的真实问题 start*/
.problems {
    background: var(--white);
    opacity: 0; /* 初始透明 */
    transform: translateY(50px); /* 初始向下偏移 */
    transition: opacity 0.6s ease, transform 0.6s ease; /* 过渡动画 */
}

.problem-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.problem-item {
    padding: 20px;
    background: var(--bg-gray);
    border-radius: var(--radius);
    display: flex;
    align-items: flex-start;
}

.problem-item::before {
    content: '•' !important;
    color: var(--primary);
    font-size: 24px;
    margin-right: 12px;
    line-height: 1;
}

.problem-conclusion {
    margin-top: 30px;
    font-weight: 600;
    color: var(--dark);
}

/* 你面对的真实问题 end*/

/* 我们的解决方案是什么 start*/
.solution {
    background: var(--bg-gray);
    opacity: 0; /* 初始透明 */
    transform: translateY(50px); /* 初始向下偏移 */
    transition: opacity 0.6s ease, transform 0.6s ease; /* 过渡动画 */
}

.applicable {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(22, 93, 255, 0.1);
    color: var(--primary);
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 30px;
}

/* 我们的解决方案是什么 end*/

/* 底座三像图  start*/
.architecture {
    background: var(--white);
    opacity: 0; /* 初始透明 */
    transform: translateY(50px); /* 初始向下偏移 */
    transition: opacity 0.6s ease, transform 0.6s ease; /* 过渡动画 */
}

/* 1. 核心容器：补充弹性布局+3D继承，确保卡片与底座垂直排列 */
.container-architecture {
    position: relative;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    gap: 15px;
    display: flex; /* 垂直排列子元素 */
    flex-direction: column; /* 卡片组在上，底座在下 */
    transform-style: preserve-3d; /* 继承3D空间 */
    perspective: 1000px; /* 核心：3D透视距离（值越小，3D效果越强） */
}

/* 2. 卡片组：3D布局核心（保持原有配置，确保3D继承） */
.card-group {
    display: flex;
    justify-content: center;
    gap: 0;
    width: 100%;
    transform-style: preserve-3d; /* 子卡片3D变换生效的关键 */
    position: relative;
}

/* 3. 通用卡片样式：保持原有配置，确保backface-visibility生效 */
.card {
    width: 360px;
    height: 480px;
    border-radius: 18px;
    background-color: #ffffff;
    border: 1px solid #e5e7eb;
    padding: 40px 30px;
    color: #1f2937;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transform-style: preserve-3d; /* 卡片内部元素3D继承 */
    backface-visibility: hidden; /* 防止3D旋转时文字模糊 */
}

/* 4. 左侧卡片：向左后倾斜（关键3D变换属性） */
.card-1 {
    border-top: 4px solid #2563eb;
    transform: rotateY(-18deg) translateZ(-5px); /* Y轴旋转15°+向后移动10px */
    z-index: 1;
    background-color: #f9fafb;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.03);
}

/* 5. 中间卡片：正立（视觉中心） */
.card-2 {
    border-top: 4px solid #4e5969;
    transform: none; /* 无旋转，保持正立 */
    z-index: 3; /* 最高层级，覆盖两侧卡片 */
    background-color: #f9fafb;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.03);
}

/* 6. 右侧卡片：向左后倾斜（关键3D变换属性） */
.card-3 {
    border-top: 4px solid #059669;
    transform: rotateY(18deg) translateZ(-10px); /* Y轴旋转-12°+向后移动10px */
    z-index: 2;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.03);
}

/* 7. 卡片悬浮交互：3D效果增强（保持原有配置） */
.card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    transform: translateZ(5px); /* 悬浮时向前突出 */
}

.card-1:hover {
    transform: rotateY(0deg) translateZ(0px); /* 左侧悬浮：保持旋转+向前突出 */
}

.card-3:hover {
    transform: rotateY(0deg) translateZ(0px); /* 右侧悬浮：保持旋转+向前突出 */
}

/* 8. 卡片内文字排版：保持原有配置，确保可读性 */
.card-title {
    font-size: 22px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid #f3f4f6;
    flex-shrink: 0;
    color: #111827;
}

.card-brief {
    font-size: 17px;
    line-height: 1.5;
    text-align: center;
    margin-bottom: 25px;
    flex-shrink: 0;
    color: #4b5563;
}

.card-list {
    list-style: none;
    font-size: 16px;
    line-height: 2;
    text-align: left;
    padding-left: 5px;
    flex: 1;
    color: #374151;
}

.card-list li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 4px;
}

.card-list li::before {
    content: "✓" !important;
    position: absolute;
    left: 0;
    color: #2563eb;
    font-weight: 600;
    font-size: 14px;
}

/* 9. 底座样式：轻微后移，强化3D层次（保持原有配置） */
.base {
    width: 100%;
    height: 160px;
    background-color: #002b5c;
    border-radius: 8px 8px 0 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    text-align: center;
    padding: 0 20px;
    transform-style: preserve-3d;
    transform: translateZ(-5px); /* 底座向后移动，与卡片形成空间差 */
}

.base-title {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 10px;
}

.base-desc {
    font-size: 16px;
    opacity: 1;
}

/*底座三像图 end*/

/* 运行逻辑  start*/
.workflow {
    background: var(--bg-gray);
    padding: 100px 0;
    opacity: 0; /* 初始透明 */
    transform: translateY(50px); /* 初始向下偏移 */
    transition: opacity 0.6s ease, transform 0.6s ease; /* 过渡动画 */
}

.workflow-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin: 40px 0;
    padding: 30px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.workflow-step {
    background: var(--primary);
    color: var(--white);
    padding: 12px 20px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    min-width: 120px;
}

.workflow-arrow {
    color: var(--light-gray);
    font-size: 24px;
}

/* 系统运行逻辑  end*/


/* 成熟度五级模型 start */
.maturity {
    max-width: 1200px;
    margin: 0 auto;
    opacity: 0; /* 初始透明 */
    transform: translateY(50px); /* 初始向下偏移 */
    transition: opacity 0.6s ease, transform 0.6s ease; /* 过渡动画 */
}

.maturity-levels {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px; /* 增大间距，避免拥挤 */
    align-items: flex-end; /* 底部对齐，解决高度差异导致的视觉错位 */
    margin-bottom: 60px;
    position: relative;
}

.maturity-levels::before {
    content: "";
    position: absolute;
    /*bottom: 20px;*/
    left: 5%;
    right: 5%;
    height: 2px;
    background: linear-gradient(90deg, var(--level1), var(--level5));
    z-index: 1;
}

.level-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 20px 16px;
    text-align: center;
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    width: 100%;
}

/* Level 1 */
.level-card:nth-child(1) {
    height: 230px;
    background-color: var(--level1);
    box-shadow: var(--shadow-sm);
    border-color: var(--level1);
    transform: translateY(-5px);
}

/* Level 2 */
.level-card:nth-child(2) {
    height: 270px;
    background-color: var(--level2);
    box-shadow: var(--shadow-sm);
    border-color: var(--level2);
    transform: translateY(-5px);
}

/* Level 3 */
.level-card:nth-child(3) {
    height: 310px;
    background-color: var(--level3);
    box-shadow: var(--shadow-md);
    border-color: var(--level3);
    transform: translateY(-5px);
}

/* Level 4 */
.level-card:nth-child(4) {
    height: 350px;
    background-color: var(--level4);
    box-shadow: var(--shadow-md);
    border-color: var(--level4);
    transform: translateY(-5px);
}

/* Level 5 */
.level-card:nth-child(5) {
    height: 390px;
    background-color: var(--level5);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-dark);
    transform: translateY(-5px);
}

.level-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.level-badge {
    width: 40px;
    height: 40px;
    background-color: var(--primary-dark);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 600;
    margin: 0 auto 16px;
}

.level-card:nth-child(5) .level-badge {
    width: 48px;
    height: 48px;
    font-size: 22px;
}

.level-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 12px;
}

.level-card:nth-child(5) .level-card-title {
    font-size: 20px;
    color: #fff;
}

.level-card-desc {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.6;
}

.level-card:nth-child(5) .level-card-desc {
    color: #fff;
    font-weight: 400;
}

.maturity-cta {
    text-align: center;
}

.cta-btn {
    padding: 16px 48px;
    background-color: var(--primary-dark);
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    text-decoration: none;
}

.cta-btn:hover {
    background-color: #0958d9;
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

/* 成熟度五级模型 end */


/* 成熟度自测问卷 start */
.assessment {
    background: var(--bg-gray);
    opacity: 0; /* 初始透明 */
    transform: translateY(50px); /* 初始向下偏移 */
    transition: opacity 0.6s ease, transform 0.6s ease; /* 过渡动画 */
}

.assessment-form {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 40px;
    margin: 40px 0;
}

.form-group {
    margin-bottom: 25px;
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--dark);
}

.form-input, .form-select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--light-gray);
    border-radius: var(--radius);
    font-size: 16px;
    color: var(--dark);
}

.form-input:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.1);
}

.radio-group {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.radio-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    color: var(--gray);
}

.radio-input {
    margin-right: 8px;
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    color: var(--gray);
}

.checkbox-input {
    margin-right: 8px;
}

.form-submit {
    text-align: center;
    margin-top: 30px;
}

/* 成熟度自测问卷  end*/

/* 成熟度自测完整解读包  start*/
.assessment-resource-pack {
    background: var(--white);
    opacity: 0; /* 初始透明 */
    transform: translateY(50px); /* 初始向下偏移 */
    transition: opacity 0.6s ease, transform 0.6s ease; /* 过渡动画 */
    display: flex; /* 让 .assessment-resource-pack-container 能居中 */
    justify-content: center; /* 让子容器水平居中 */
    align-items: center; /* 让子容器垂直居中 */
}

.assessment-resource-pack-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.mb-40-assessment-resource-pack {
    margin-bottom: 20px;
}

.span-assessment-resource-pack {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 40px;
    color: var(--dark);
    position: relative;
    display: inline-block;
}

/* 成熟度自测完整解读包  end*/

/* 从 Level X → Level X+1 的试点方案 start */
.pilot {
    background: var(--bg-gray);
    opacity: 0; /* 初始透明 */
    transform: translateY(50px); /* 初始向下偏移 */
    transition: opacity 0.6s ease, transform 0.6s ease; /* 过渡动画 */
}

.pilot-plans {
    display: grid;
    grid-template-columns: repeat(2, minmax(250px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.pilot-plan {
    background: #e0ebff8c;
    border-radius: var(--radius);
    padding: 30px;
    transition: transform 0.3s;
}

.pilot-plan:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.plan-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--dark);
    display: flex;
    align-items: center;
}

.plan-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--light-gray);
    margin-left: 15px;
}

.plan-section {
    margin-bottom: 15px;
}

.plan-section-title {
    font-weight: 600;
    font-size: 17px;
    margin-bottom: 5px;
    color: var(--dark);
}

.plan-section-content {
    font-size: 17px;
    color: var(--gray);
}

/* 从 Level X → Level X+1 的试点方案 end */

/* Level X → Level X+1 试点行动清单  start*/
.pilot-list {
    background: var(--white);
    opacity: 0; /* 初始透明 */
    transform: translateY(50px); /* 初始向下偏移 */
    transition: opacity 0.6s ease, transform 0.6s ease; /* 过渡动画 */
    display: flex; /* 让 .assessment-resource-pack-container 能居中 */
    justify-content: center; /* 让子容器水平居中 */
    align-items: center; /* 让子容器垂直居中 */
}

.pilot-list-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.mb-40-pilot-list {
    margin-bottom: 20px;
}

.span-pilot-list {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 40px;
    color: var(--dark);
    position: relative;
    display: inline-block;
}

/* Level X → Level X+1 试点行动清单  end*/

/* 交付与成果  start*/
.deliverables {
    background: var(--bg-gray);
    opacity: 0; /* 初始透明 */
    transform: translateY(50px); /* 初始向下偏移 */
    transition: opacity 0.6s ease, transform 0.6s ease; /* 过渡动画 */
}

.deliverables-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(250px, 1fr));
    gap: 20px;
    margin: 40px 0;
}

.deliverable-item {
    background: var(--white);
    padding: 25px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    transition: transform 0.3s;
}

.deliverable-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.deliverable-icon {
    font-size: 24px;
    color: var(--primary);
    margin-right: 15px;
}

.deliverable-text {
    font-size: 17px;
    color: var(--dark);
    font-weight: 500;
}

/* 交付与成果  end*/

/* FAQ start*/
.faq {
    background: var(--white);
    opacity: 0; /* 初始透明 */
    transform: translateY(50px); /* 初始向下偏移 */
    transition: opacity 0.6s ease, transform 0.6s ease; /* 过渡动画 */
}

.faq-list {
    max-width: 900px;
    margin: 40px auto;
}

.faq-item {
    margin-bottom: 15px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--light-gray);
}

.faq-question {
    background: var(--bg-gray);
    padding: 18px 25px;
    font-weight: 600;
    color: var(--dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    background: var(--white);
}

.faq-answer.active {
    padding: 20px 25px;
    max-height: 500px;
}

.faq-icon {
    color: var(--primary);
    transition: transform 0.3s;
}

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

/* FAQ end*/


/* 核心CTA容器 */
.cta {
    background: var(--white);
    opacity: 0; /* 初始透明 */
    transform: translateY(50px); /* 初始向下偏移 */
    transition: opacity 0.6s ease, transform 0.6s ease; /* 过渡动画 */
}

.cta-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    align-items: stretch;
}

/* 单个CTA卡片 */
.cta-card {
    flex: 1;
    min-width: 320px;
    background: linear-gradient(180deg, #ffffff 0%, #fafbff 100%);
    border-radius: 16px;
    padding: 40px 32px;
    box-shadow: 0 8px 24px rgba(149, 157, 165, 0.08);
    border: 1px solid #eef2f7;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

/* 卡片悬浮效果 */
.cta-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(149, 157, 165, 0.12);
    border-color: #d1e4ff;
}

/* 卡片顶部装饰色条 */
.cta-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #1677ff, #4096ff);
    border-radius: 16px 16px 0 0;
}

/* 卡片标题 */
.cta-card-title {
    font-size: 20px;
    font-weight: 600;
    color: #1d2129;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
}

/* 标题前的图标 */
.cta-card-title::before {
    content: "";
    display: inline-block;
    width: 4px;
    height: 20px;
    background-color: #1677ff;
    border-radius: 2px;
    margin-right: 12px;
}

/* 卡片描述 */
.cta-card-desc {
    font-size: 14px;
    line-height: 1.6;
    color: #4e5969;
    margin-bottom: 32px;
}

/* CTA按钮 */
.cta-card-btn {
    display: inline-block;
    padding: 14px 32px;
    background-color: #1677ff;
    color: #ffffff;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(22, 119, 255, 0.2);
    border: none;
    cursor: pointer;
}

/* 按钮悬浮效果 */
.cta-card-btn:hover {
    background-color: #0958d9;
    box-shadow: 0 6px 16px rgba(22, 119, 255, 0.3);
    transform: translateY(-2px);
}

/* 按钮:active效果 */
.cta-card-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(22, 119, 255, 0.2);
}

/* 回到顶部按钮 start*/
.back-to-top {
    /* 固定在右下角 */
    position: fixed;
    right: 30px;
    bottom: 30px;
    /* 初始隐藏 */
    display: none;
    /* 按钮样式（可自定义） */
    padding: 10px 15px;
    background: #165dff;
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* 鼠标 hover 效果 */
.back-to-top:hover {
    background: #0d47cc;
}

/* 回到顶部按钮 end*/