/* ===== 第一部分 CBI Hero Section 优化版 ===== */
.cbi-hero {
    /* 引用文档基础变量 */
    --cbi-blue: #002b5c;      /* 主蓝 [cite: 47] */
    --cbi-dark: #00152e;      /* 深蓝 [cite: 48] */
    --cbi-gold: #d4af37;      /* 金色 [cite: 49] */
    --cbi-font: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; /* [cite: 45] */
    
    background: linear-gradient(135deg, var(--cbi-blue) 0%, var(--cbi-dark) 100%); /* [cite: 193] */
    padding: 80px 20px;
    font-family: var(--cbi-font);
    text-align: center;
    color: #ffffff;
}

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

.cbi-hero__title {
    font-size: 2.75rem; /* 约 44px [cite: 56] */
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.cbi-hero__slogan {
    font-size: 1.2rem; /* 约 19px [cite: 58] */
    color: rgba(255, 255, 255, 0.9);
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

/* 价值点列表布局 */
.cbi-hero__benefits {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    list-style: none;
    padding: 0;
    margin-bottom: 50px;
}

.cbi-hero__benefit-item {
    font-size: 0.85rem; /* 约 14px [cite: 60] */
    font-weight: 600;
    color: var(--cbi-gold);
    border: 1px solid rgba(212, 175, 55, 0.3);
    padding: 8px 18px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cbi-hero__icon {
    margin-right: 6px;
}

/* 按钮样式优化 */
.cbi-hero__btn {
    display: inline-block;
    background-color: var(--cbi-gold);
    color: var(--cbi-blue);
    padding: 18px 45px;
    font-size: 18px;
    font-weight: 800;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease; /* [cite: 81] */
    text-transform: uppercase;
}

.cbi-hero__btn:hover {
    background-color: #f1c40f; /* 浅金色 [cite: 50] */
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

/* 移动端适配 [cite: 196] */
@media (max-width: 768px) {
    .cbi-hero { padding: 60px 15px; }
    .cbi-hero__title { font-size: 2rem; }
    .cbi-hero__slogan { font-size: 1.1rem; }
    .cbi-hero__benefits { flex-direction: column; align-items: center; }
    .cbi-hero__benefit-item { width: 100%; max-width: 300px; }
    .cbi-hero__btn { width: 100%; }
}

/* ===== 补丁：按钮居中显示 ===== */
.cbi-hero__actions {
    display: flex;          /* 使用弹性布局 */
    justify-content: center; /* 水平居中 */
    width: 100%;            /* 确保容器占满宽度 */
    margin-top: 20px;       /* 增加按钮与上方元素的间距 */
}

/* 确保移动端按钮宽度自适应后依然居中 */
@media (max-width: 768px) {
    .cbi-hero__actions {
        padding: 0 15px;    /* 增加两侧边距，防止手机端按钮贴边 */
    }
}



/* ===== 第二部分 Pain Points Section Styles ===== */

/* 栅格系统布局 */
.cbi-grid {
    display: grid;
    gap: 1.5rem; /* 使用 rem 单位 */
}

.cbi-grid--four-cols {
    grid-template-columns: repeat(4, 1fr);
}

/* 标题修饰线 */
.cbi-section-header__divider {
    width: 60px;
    height: 3px;
    background-color: var(--color-accent); /* 金色 */
    margin: 1rem auto;
}

/* 痛点卡片优化 */
.cbi-pain-card {
    padding: 2rem 1.5rem;
    background-color: var(--color-white);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
}

.cbi-pain-card__icon {
    width: 50px;
    height: 50px;
    color: var(--color-primary); /* 深蓝 */
    margin-bottom: 1.25rem;
    transition: var(--transition-smooth);
}

.cbi-pain-card:hover .cbi-pain-card__icon {
    color: var(--color-accent); /* 悬停变金色 */
    transform: scale(1.1);
}

.cbi-pain-card__title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.cbi-pain-card__text {
    font-size: 0.9rem;
    line-height: 1.6;
    color: #555;
    margin: 0;
}

/* 底部反转 Banner */
.cbi-solution-banner {
    border-left: 5px solid var(--color-accent);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-light);
    margin-top: 2rem;
}

.cbi-solution-banner__text {
    margin: 0;
    text-align: center;
}

/* 响应式适配 */
@media (max-width: 1024px) {
    .cbi-grid--four-cols {
        grid-template-columns: repeat(2, 1fr); /* 平板端 2 栏 */
    }
}

@media (max-width: 600px) {
    .cbi-grid--four-cols {
        grid-template-columns: 1fr; /* 移动端 1 栏 */
    }
    .cbi-section-header__title {
        font-size: 1.5rem;
    }
    .cbi-pain-card {
        padding: 1.5rem;
    }
}

/* ===== 补丁：进一步紧凑化间距优化 ===== */

/* 1. 标题区域：显著压缩上下间距 */
.cbi-section-header {
    text-align: center;
    margin-bottom: 1rem !important; /* 极大缩小标题区与下方卡片的距离 */
}

.cbi-section-header__title {
    margin-bottom: 0.2rem !important; /* 标题与装饰线几乎贴合 */
}

.cbi-section-header__divider {
    margin: 0.5rem auto !important; /* 缩小装饰线上下留白 */
}

/* 2. 痛点卡片矩阵：缩小网格间隙和底部留白 */
.cbi-grid {
    gap: 1rem !important; /* 缩小卡片之间的间距 */
}

.cbi-grid.mb-xl {
    margin-bottom: 1rem !important; /* 极大缩小卡片组与底部 Banner 的距离 */
}

/* 3. 解决方案 Banner：压缩内外间距 */
.cbi-solution-banner {
    margin-top: 0 !important; 
    padding: 0.8rem 1.2rem !important; /* 压缩 Banner 内部填充，使其更像一条精致的提示栏 */
}

/* 4. 卡片内部：缩小文字间距 */
.cbi-pain-card {
    padding: 1.2rem 1rem !important; /* 缩小卡片内边距 */
}

.cbi-pain-card__icon {
    margin-bottom: 0.8rem !important; /* 缩小图标与标题间距 */
}

.cbi-pain-card__title {
    margin-bottom: 0.5rem !important; /* 缩小卡片标题与正文间距 */
}

/* 移动端同步紧凑化 */
@media (max-width: 768px) {
    .cbi-section-header { margin-bottom: 0.8rem !important; }
    .cbi-grid.mb-xl { margin-bottom: 0.8rem !important; }
}

/* ===== 极致紧凑补丁：再次缩小 Solution Banner 间距 ===== */

/* 1. 将上方卡片矩阵的底边距再缩减 50% */
.cbi-grid.mb-xl {
    margin-bottom: 0.25rem !important; /* 极窄间距 */
}

/* 2. 移除 Banner 的顶边距，并压缩内部垂直填充 */
.cbi-solution-banner {
    margin-top: 0 !important; 
    padding-top: 0.4rem !important;    /* 极小内顶距 */
    padding-bottom: 0.4rem !important; /* 极小内底距 */
    border-left-width: 3px !important; /* 减小左侧装饰条宽度使其更精致 */
}

/* 3. 移除文本元素的默认外边距 */
.cbi-solution-banner__text {
    margin: 0 !important;
    font-size: 0.95rem !important; /* 微调字号以适配紧凑布局 */
}

/* 针对移动端同样保持极窄间距 */
@media (max-width: 768px) {
    .cbi-grid.mb-xl { margin-bottom: 0.2rem !important; }
}


/* ===== 第三部分 Product Matrix Styles (BEM) ===== */

.cbi-matrix {
    background-color: #f9f9f9; /* 浅灰色背景对比卡片 */
}

.cbi-matrix__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    align-items: stretch;
}

/* 产品卡片基础样式 */
.document-card {
    background: #ffffff;
    border-radius: 8px;
    padding: 2.5rem 1.5rem 2rem;
    position: relative;
    border: 1px solid #e1e1e1;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    text-align: center;
}

.document-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    border-color: #ab812d; /* 悬停变为品牌金 */
}

/* 特色卡片（官方报告）高亮 */
.document-card--featured {
    border: 2px solid #ab812d;
}

.document-card__tag {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #ab812d;
    color: #fff;
    padding: 4px 15px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 20px;
    white-space: nowrap;
}

.document-card__title {
    font-size: 1.25rem;
    color: #002b5c; /* 主色蓝 */
    margin-bottom: 0.5rem;
    font-weight: 800;
}

.document-card__subtitle {
    font-size: 0.9rem;
    color: #ab812d; /* 金色副标题 */
    margin-bottom: 1.5rem;
    font-weight: 600;
    min-height: 2.5rem;
}

/* 选项标签（用于中间卡片） */
.document-card__options {
    display: flex;
    justify-content: center;
    gap: 5px;
    margin-bottom: 1.5rem;
}

.document-card__opt-tag {
    font-size: 0.65rem;
    background: #f0f0f0;
    padding: 2px 8px;
    border-radius: 4px;
    color: #666;
}

/* 打钩列表样式 */
.document-card__list {
    list-style: none;
    padding: 0;
    margin: 0 0 2rem 0;
    text-align: left;
    flex-grow: 1;
}

.document-card__list li {
    font-size: 0.9rem;
    color: #444;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: flex-start;
}

.document-card__list li span {
    color: #ab812d;
    margin-right: 10px;
    font-weight: bold;
}

/* 矩阵内部按钮 */
.btn-matrix {
    display: block;
    padding: 12px 20px;
    background: #002b5c;
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    border-radius: 4px;
    transition: background 0.3s;
    font-size: 0.9rem;
    text-transform: uppercase;
}

.btn-matrix:hover {
    background: #ab812d;
    color: #fff;
}

/* 响应式适配 */
@media (max-width: 1024px) {
    .cbi-matrix__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .cbi-matrix__grid {
        grid-template-columns: 1fr;
    }
    .document-card {
        padding: 2rem 1.2rem;
    }
}


/* ===== 第四部分 Service Process Styles (BEM) ===== */

/* ===== Service Process 横向排布样式 ===== */

.cbi-process {
    padding-top: 100px !important; /* 按照您的要求调高 30% */
}

.cbi-process__flex-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    max-width: 1100px;
    margin: 0 auto;
    gap: 1rem;
}

.cbi-process-card {
    flex: 1;
    text-align: center;
    position: relative;
    padding: 1rem;
}

.cbi-process-card__icon-box {
    width: 70px;
    height: 70px;
    background: #f8f9fa;
    border: 2px solid #e1e1e1;
    border-radius: 50%;
    margin: 0 auto 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    position: relative;
    transition: all 0.3s ease;
}

.cbi-process-card:hover .cbi-process-card__icon-box {
    background: var(--color-primary);
    color: var(--color-accent); /* 悬停变金 */
    border-color: var(--color-accent);
}

.cbi-process-card__num {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--color-accent);
    color: var(--color-primary);
    width: 22px;
    height: 22px;
    border-radius: 50%;
    font-size: 0.7rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cbi-process-card__svg {
    width: 28px;
    height: 28px;
}

.cbi-process-card__title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.cbi-process-card__desc {
    font-size: 0.85rem;
    color: #666;
    line-height: 1.4;
}

/* 连接器：水平箭头/线条 */
.cbi-process__arrow {
    flex: 0 0 60px;
    height: 2px;
    background: #e1e1e1;
    margin-top: 35px; /* 对齐图标中心点 */
    position: relative;
}

.cbi-process__arrow::after {
    content: '';
    position: absolute;
    right: 0;
    top: -4px;
    width: 10px;
    height: 10px;
    border-top: 2px solid #e1e1e1;
    border-right: 2px solid #e1e1e1;
    transform: rotate(45deg);
}

/* 移动端适配：横向转纵向 */
@media (max-width: 768px) {
    .cbi-process__flex-container {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }
    
    .cbi-process__arrow {
        display: none; /* 纵向时隐藏箭头 */
    }

    .cbi-process-card {
        max-width: 280px;
    }
}


/* ===== 第五部分 Authority Section 强化版样式 ===== */

.cbi-auth-section {
    padding: 80px 20px;
    background-color: #ffffff;
}

.cbi-auth-container {
    max-width: 1140px;
    margin: 0 auto;
}

.cbi-auth-card {
    background-color: #002b5c; /* 品牌深蓝 */
    border-radius: 12px;
    padding: 60px 50px;
    position: relative;
    overflow: hidden;
    color: #ffffff;
    box-shadow: 0 20px 40px rgba(0, 43, 92, 0.15);
}

/* 装饰性水印：极大且淡化 */
.cbi-auth-card__watermark {
    position: absolute;
    top: -10px;
    left: -20px;
    font-size: 8rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.04);
    pointer-events: none;
    white-space: nowrap;
    transform: rotate(-3deg);
    z-index: 1;
}

.cbi-auth-card__flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 2;
    gap: 40px;
}

/* 左侧内容样式 */
.cbi-auth-card__source {
    flex: 1.2;
}

.cbi-auth-card__title {
    font-size: 2.2rem !important;
    color: #ab812d !important; /* 品牌金 */
    font-weight: 800;
    margin-bottom: 20px !important;
    line-height: 1.2;
}

.cbi-auth-card__text {
    font-size: 1.05rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 30px;
}

.cbi-auth-card__badges {
    display: flex;
    gap: 12px;
}

.cbi-auth-badge {
    padding: 6px 16px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 4px;
}

.cbi-auth-badge--gold {
    background-color: #ab812d;
    color: #002b5c;
}

.cbi-auth-badge--outline {
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: #ffffff;
}

/* 右侧品牌样式 */
.cbi-auth-card__expert {
    flex: 0.8;
    display: flex;
    align-items: center;
}

.cbi-auth-card__divider {
    width: 1px;
    height: 150px;
    background: linear-gradient(to bottom, transparent, rgba(171, 129, 45, 0.6), transparent);
    margin-right: 40px;
}

.cbi-auth-card__brand {
    display: block;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 10px;
}

.cbi-auth-card__slogan {
    font-size: 1.6rem !important;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 15px !important;
}

.cbi-auth-card__highlight {
    color: #ab812d;
}

.cbi-auth-card__subtext {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

/* 响应式适配 */
@media (max-width: 991px) {
    .cbi-auth-card {
        padding: 40px 30px;
    }
    .cbi-auth-card__flex {
        flex-direction: column;
        text-align: center;
    }
    .cbi-auth-card__divider {
        display: none;
    }
    .cbi-auth-card__expert {
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        padding-top: 30px;
    }
    .cbi-auth-card__badges {
        justify-content: center;
    }
    .cbi-auth-card__title {
        font-size: 1.8rem !important;
    }
}

/* ===== 补丁：仅调整 Slogan 中 Your 的颜色以提高清晰度 ===== */

.cbi-auth-card__slogan {
    color: #ffffff !important; /* 确保整句文字为纯白色 */
}

/* 针对 Your 单词（即 Slogan 的第一个文本层级）进行颜色增强 */
.cbi-auth-card__slogan span:first-child {
    color: #ffffff !important;
    text-shadow: 0 0 8px rgba(0, 0, 0, 0.8) !important; /* 增加深色光晕，使其从背景中脱离出来 */
}


/* ===== 第六部分 Final CTA & FAQ 样式 (基于 BEM) ===== */

.cbi-footer-cta {
    background-color: #002b5c; /* 深蓝背景 */
    color: #ffffff;
    padding-top: 80px;
    padding-bottom: 80px;
}

/* FAQ 样式 */
.cbi-faq {
    max-width: 800px;
    margin: 0 auto 60px;
}

.cbi-faq__item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

.cbi-faq__item[open] {
    background: rgba(255, 255, 255, 0.1);
    border-color: #ab812d;
}

.cbi-faq__question {
    padding: 20px;
    font-weight: 700;
    font-size: 1.05rem;
    cursor: pointer;
    list-style: none; /* 隐藏默认箭头 */
    position: relative;
    outline: none;
}

/* 自定义折叠箭头 */
.cbi-faq__question::after {
    content: '+';
    position: absolute;
    right: 20px;
    color: #ab812d;
    font-size: 1.5rem;
}

.cbi-faq__item[open] .cbi-faq__question::after {
    content: '-';
}

.cbi-faq__answer {
    padding: 0 20px 20px;
    font-size: 0.95rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.8);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* CTA 引导样式 */
.cbi-final-action {
    max-width: 700px;
    margin: 0 auto;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 50px;
}

.cbi-final-action__title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 15px;
}

.cbi-final-action__text {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 35px;
}

/* 按钮居中补丁 */
.cbi-final-action__btn-wrapper {
    display: flex;
    justify-content: center;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .cbi-final-action__title {
        font-size: 1.5rem;
    }
    .cbi-faq__question {
        padding-right: 40px;
        font-size: 0.95rem;
    }
}

/* ===== 补丁：标题清晰化与按钮强化 ===== */

/* 1. FAQ 标题与 CTA 标题清晰化 */
.cbi-section-header__title.text-white,
.cbi-final-action__title {
    color: #ffffff !important;
    font-weight: 800 !important; /* 增加粗细 */
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3) !important; /* 增加微弱投影，使文字从背景浮现 */
    letter-spacing: 0.5px !important;
}

.cbi-final-action__title {
    font-size: 2.25rem !important; /* 稍微加大 CTA 标题尺寸 */
    margin-bottom: 20px !important;
}

/* 2. 强化最后的行动按钮 (btn-primary 覆盖升级) */
.cbi-final-action .btn-primary {
    display: inline-block;
    background-color: #ab812d !important; /* 品牌金背景 */
    color: #002b5c !important;            /* 深蓝文字，高对比度 */
    padding: 18px 45px !important;
    font-size: 1.1rem !important;
    font-weight: 800 !important;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid #ffffff !important; /* 白色描边增加精致感 */
    border-radius: 4px !important;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2) !important;
    transition: all 0.3s ease !important;
    text-decoration: none;
}

/* 3. 按钮悬停效果：背景变亮，边框变色 */
.cbi-final-action .btn-primary:hover {
    background-color: #c5a04d !important; /* 稍浅的金 */
    border-color: #ab812d !important;      /* 边框转金 */
    color: #ffffff !important;            /* 文字转白 */
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4) !important;
}

/* 4. 优化 FAQ 展开后的文字对比度 */
.cbi-faq__question {
    color: #ffffff !important;
}

.cbi-faq__answer {
    color: rgba(255, 255, 255, 0.9) !important; /* 提高答案文字亮度 */
}