header {
    background-color: white;
    border-bottom: 1px solid #e0e0e0;
    /*padding: 12px 0;*/
}

.header-content {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-logo {
    font-size: 18px;
    font-weight: 600;
    color: #333;
}

.header-links {
    font-size: 12px;
    color: #666;
}

main {
    max-width: 600px;
    margin: 0 auto;
    padding: 25px 1px 16px 15px;
}

.section {
    margin-bottom: 16px;
}

.blue-btn {
    width: 100%;
    background-color: #3b4190;
    color: white;
    border: none;
    padding: 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: background-color 0.3s;
}

    .blue-btn:hover {
        background-color: #003d99;
    }

.icon-circle {
    width: 32px;
    height: 32px;
    background-color: white;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.collapsible {
    background-color: white;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
}

.collapsible-header {
    width: 100%;
    background-color: #d1edff96;
    border: none;
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: background-color 0.2s;
}

    .collapsible-header:hover {
        background-color: #36acf796;
    }
.item-collapsible {
    width: 100%;
      border: none;
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: background-color 0.2s;
}
.collapsible-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.small-icon {
    width: 24px;
    height: 24px;
    background-color: #e0e8ff;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: #0052cc;
}

.chevron {
    font-size: 14px;
    transition: transform 0.3s;
}

    .chevron.open {
        transform: rotate(180deg);
    }

.collapsible-content {
    display: none;
    border-top: 1px solid #e0e0e0;
    background-color: #f9f9f9;
    padding: 12px 16px;
}

    .collapsible-content.open {
        display: block;
    }

.content-item {
    font-size: 13px;
    color: #333;
    padding: 8px 0;
    cursor: pointer;
    transition: color 0.2s;
}

    .content-item:hover {
        color: #0052cc;
    }

.banner {
    border-radius: 8px;
    height: 100px;
    padding: 24px 16px;
    text-align: center;
    color: white;
    margin-bottom: 16px;
}

.banner-blue {
    background: linear-gradient(135deg, #5b8cff 0%, #0052cc 100%);
}

.banner-red {
    background: linear-gradient(135deg, #dc3545 0%, #a71d2a 100%);
}

.banner-orange {
    background: linear-gradient(135deg, #ff9800 0%, #f57c00 100%);
}

.banner-title {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 4px;
}

.banner-subtitle {
    font-size: 12px;
    opacity: 0.9;
}

.button-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.link-btn {
    background-color: #0052cc;
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

    .link-btn:hover {
        background-color: #003d99;
    }

.support-section {
    background-color: white;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 24px 16px;
}

.support-title {
    text-align: center;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 16px;
}

.back-btn {
    width: 100%;
    background-color: #f5f5f5;
    border: 1px solid #d0d0d0;
    padding: 12px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

    .back-btn:hover {
        background-color: #efefef;
    }

.faq-section {
    background-color: white;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 16px;
}

.faq-title {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 16px;
}

.faq-item {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 12px;
    line-height: 1.5;
}

.faq-label {
    font-weight: 600;
    color: #666;
    min-width: 40px;
}

.faq-text {
    color: #666;
}

.content {
    max-height: 0; /* Ẩn nội dung ban đầu */
    overflow: hidden;
    transition: max-height 0.4s ease; /* Hiệu ứng sổ xuống chậm */
}

    .content.open {
        max-height: 500px; /* Giá trị đủ lớn để chứa nội dung */
    }

.chevron {
    display: inline-block;
    margin-left: 8px;
    transition: transform 0.3s ease;
}

    .chevron.open {
        transform: rotate(180deg);
    }

.img-sidebar {
    width: 100%;
    height: 55px;
}

.sidebar-right-2 {
    border-radius: 10px;
    border: solid 1px rgba(0, 0, 0, 0.15);
    box-shadow: rgba(0, 0, 0, 0.15) -4.6px -4.6px 2.2px;
}

.small-icon .img-in-small-icon {
  min-width:24px;
  min-height:24px;
}
.small-icon .img-in-small-icon {
  max-width:24px;
  max-height:24px;
}