.page-blog-huong-dan-dang-ky-ku-web__hero-section {
    position: relative;
    width: 100%;
    padding-top: 10px; /* Small top padding as shared.css handles body padding */
    background-color: #f0f8ff;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.page-blog-huong-dan-dang-ky-ku-web__hero-image {
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    box-sizing: border-box;
}

.page-blog-huong-dan-dang-ky-ku-web__hero-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    aspect-ratio: 16/9;
}

.page-blog-huong-dan-dang-ky-ku-web__hero-content {
    max-width: 900px;
    padding: 40px 20px 60px;
    margin: 0 auto;
    color: #333333;
    z-index: 1;
}

.page-blog-huong-dan-dang-ky-ku-web__main-title {
    font-size: clamp(2.2rem, 4vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #26A9E0;
}

.page-blog-huong-dan-dang-ky-ku-web__intro-description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 30px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.page-blog-huong-dan-dang-ky-ku-web__cta-button {
    display: inline-block;
    background-color: #26A9E0;
    color: #ffffff;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: background-color 0.3s ease, transform 0.2s ease;
    box-shadow: 0 4px 10px rgba(38, 169, 224, 0.3);
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-blog-huong-dan-dang-ky-ku-web__cta-button:hover {
    background-color: #1e8dc7;
    transform: translateY(-2px);
}

.page-blog-huong-dan-dang-ky-ku-web__section {
    padding: 60px 0;
    background-color: #ffffff;
    color: #333333;
}

.page-blog-huong-dan-dang-ky-ku-web__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

.page-blog-huong-dan-dang-ky-ku-web__section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 700;
    color: #26A9E0;
    margin-bottom: 40px;
    text-align: center;
    position: relative;
}

.page-blog-huong-dan-dang-ky-ku-web__section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background-color: #26A9E0;
    margin: 15px auto 0;
    border-radius: 2px;
}

.page-blog-huong-dan-dang-ky-ku-web p {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 20px;
    color: #333333;
}

.page-blog-huong-dan-dang-ky-ku-web ul {
    list-style-type: disc;
    margin-left: 20px;
    margin-bottom: 20px;
    color: #333333;
}

.page-blog-huong-dan-dang-ky-ku-web li {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 10px;
}

.page-blog-huong-dan-dang-ky-ku-web__benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.page-blog-huong-dan-dang-ky-ku-web__benefit-card {
    background-color: #ffffff;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e0e0e0;
}

.page-blog-huong-dan-dang-ky-ku-web__benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.page-blog-huong-dan-dang-ky-ku-web__benefit-card img {
    width: 100%;
    max-width: 300px;
    height: auto;
    display: block;
    margin: 0 auto 20px;
    border-radius: 8px;
}

.page-blog-huong-dan-dang-ky-ku-web__card-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: #26A9E0;
    margin-bottom: 15px;
}

.page-blog-huong-dan-dang-ky-ku-web__step-by-step {
    margin-top: 40px;
    margin-bottom: 60px;
}

.page-blog-huong-dan-dang-ky-ku-web__step-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
    gap: 20px;
}

.page-blog-huong-dan-dang-ky-ku-web__step-number {
    background-color: #26A9E0;
    color: #ffffff;
    width: 45px;
    height: 45px;
    min-width: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 3px 8px rgba(38, 169, 224, 0.4);
}

.page-blog-huong-dan-dang-ky-ku-web__step-content {
    flex-grow: 1;
    text-align: left;
}

.page-blog-huong-dan-dang-ky-ku-web__step-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #333333;
    margin-top: 0;
    margin-bottom: 10px;
}

.page-blog-huong-dan-dang-ky-ku-web__step-content img {
    width: 100%;
    height: auto;
    display: block;
    margin-top: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-blog-huong-dan-dang-ky-ku-web__post-registration-list {
    list-style: none;
    padding: 0;
    margin-top: 30px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.page-blog-huong-dan-dang-ky-ku-web__post-registration-list li {
    background-color: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    transition: background-color 0.3s ease;
}

.page-blog-huong-dan-dang-ky-ku-web__post-registration-list li:hover {
    background-color: #eaf7ff;
}

.page-blog-huong-dan-dang-ky-ku-web__post-registration-list li a {
    color: #26A9E0;
    text-decoration: none;
    font-weight: 600;
}

.page-blog-huong-dan-dang-ky-ku-web__post-registration-list li a:hover {
    text-decoration: underline;
}

.page-blog-huong-dan-dang-ky-ku-web__faq-list {
    margin-top: 40px;
}

details.page-blog-huong-dan-dang-ky-ku-web__faq-item {
    margin-bottom: 15px;
    border-radius: 5px;
    border: 1px solid #e0e0e0;
    overflow: hidden;
    background: #fff;
}

details.page-blog-huong-dan-dang-ky-ku-web__faq-item summary.page-blog-huong-dan-dang-ky-ku-web__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px;
    cursor: pointer;
    user-select: none;
    list-style: none;
    transition: background-color 0.3s ease;
}

details.page-blog-huong-dan-dang-ky-ku-web__faq-item summary.page-blog-huong-dan-dang-ky-ku-web__faq-question::-webkit-details-marker {
    display: none;
}

details.page-blog-huong-dan-dang-ky-ku-web__faq-item summary.page-blog-huong-dan-dang-ky-ku-web__faq-question:hover {
    background: #f5f5f5;
}

.page-blog-huong-dan-dang-ky-ku-web__faq-qtext {
    flex: 1;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    text-align: left;
    color: #333333;
}

.page-blog-huong-dan-dang-ky-ku-web__faq-toggle {
    font-size: 24px;
    font-weight: bold;
    color: #666;
    flex-shrink: 0;
    margin-left: 15px;
    width: 28px;
    text-align: center;
}

details.page-blog-huong-dan-dang-ky-ku-web__faq-item .page-blog-huong-dan-dang-ky-ku-web__faq-answer {
    padding: 0 20px 20px;
    background: #f9f9f9;
    border-radius: 0 0 5px 5px;
    color: #333333;
}

.page-blog-huong-dan-dang-ky-ku-web__cta-final {
    text-align: center;
    padding: 60px 20px;
    background-color: #f0f8ff;
    border-radius: 10px;
    margin-top: 60px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.page-blog-huong-dan-dang-ky-ku-web__cta-final .page-blog-huong-dan-dang-ky-ku-web__section-title {
    margin-bottom: 25px;
}

.page-blog-huong-dan-dang-ky-ku-web__cta-final p {
    max-width: 800px;
    margin: 0 auto 30px;
    font-size: 1.1rem;
}

.page-blog-huong-dan-dang-ky-ku-web__btn-primary {
    background-color: #26A9E0;
    color: #ffffff;
    border: 2px solid transparent;
    display: inline-block;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: background-color 0.3s ease, transform 0.2s ease;
    box-shadow: 0 4px 10px rgba(38, 169, 224, 0.3);
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-blog-huong-dan-dang-ky-ku-web__btn-primary:hover {
    background-color: #1e8dc7;
    transform: translateY(-2px);
}

/* Mobile Responsive Styles */
@media (max-width: 1024px) {
    .page-blog-huong-dan-dang-ky-ku-web__main-title {
        font-size: clamp(2rem, 5vw, 3rem);
    }
    .page-blog-huong-dan-dang-ky-ku-web__intro-description {
        font-size: 1rem;
    }
    .page-blog-huong-dan-dang-ky-ku-web__section-title {
        font-size: clamp(1.6rem, 4.5vw, 2.2rem);
    }
    .page-blog-huong-dan-dang-ky-ku-web__benefit-card img {
        max-width: 250px;
    }
    .page-blog-huong-dan-dang-ky-ku-web__post-registration-list {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .page-blog-huong-dan-dang-ky-ku-web__hero-section {
        padding-top: 10px;
    }
    .page-blog-huong-dan-dang-ky-ku-web__hero-image img {
        object-fit: contain !important; /* HERO main image mobile: contain */
        aspect-ratio: unset !important;
    }
    .page-blog-huong-dan-dang-ky-ku-web__hero-content {
        padding: 30px 15px 40px;
    }
    .page-blog-huong-dan-dang-ky-ku-web__main-title {
        font-size: clamp(1.8rem, 6vw, 2.5rem);
        margin-bottom: 15px;
    }
    .page-blog-huong-dan-dang-ky-ku-web__intro-description {
        font-size: 0.95rem;
        margin-bottom: 25px;
    }
    .page-blog-huong-dan-dang-ky-ku-web__cta-button {
        padding: 12px 25px;
        font-size: 1rem;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }
    .page-blog-huong-dan-dang-ky-ku-web__section {
        padding: 40px 0;
    }
    .page-blog-huong-dan-dang-ky-ku-web__container {
        padding: 0 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    .page-blog-huong-dan-dang-ky-ku-web__section-title {
        font-size: clamp(1.5rem, 5vw, 2rem);
        margin-bottom: 30px;
    }
    .page-blog-huong-dan-dang-ky-ku-web p,
    .page-blog-huong-dan-dang-ky-ku-web li {
        font-size: 0.95rem;
        line-height: 1.6;
    }
    .page-blog-huong-dan-dang-ky-ku-web__benefits-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-bottom: 40px;
    }
    .page-blog-huong-dan-dang-ky-ku-web__benefit-card {
        padding: 25px;
    }
    .page-blog-huong-dan-dang-ky-ku-web__card-title {
        font-size: 1.2rem;
    }
    .page-blog-huong-dan-dang-ky-ku-web__step-by-step {
        margin-top: 30px;
        margin-bottom: 40px;
    }
    .page-blog-huong-dan-dang-ky-ku-web__step-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        margin-bottom: 25px;
    }
    .page-blog-huong-dan-dang-ky-ku-web__step-number {
        margin-bottom: 15px;
    }
    .page-blog-huong-dan-dang-ky-ku-web__step-title {
        font-size: 1.15rem;
    }
    .page-blog-huong-dan-dang-ky-ku-web__step-content img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    .page-blog-huong-dan-dang-ky-ku-web__post-registration-list {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-top: 20px;
    }
    .page-blog-huong-dan-dang-ky-ku-web__post-registration-list li {
        padding: 15px;
    }
    details.page-blog-huong-dan-dang-ky-ku-web__faq-item summary.page-blog-huong-dan-dang-ky-ku-web__faq-question { padding: 15px; }
    .page-blog-huong-dan-dang-ky-ku-web__faq-qtext { font-size: 15px; }
    details.page-blog-huong-dan-dang-ky-ku-web__faq-item .page-blog-huong-dan-dang-ky-ku-web__faq-answer {
        padding: 0 15px 15px;
    }
    .page-blog-huong-dan-dang-ky-ku-web__cta-final {
        padding: 40px 15px;
        margin-top: 40px;
    }
    .page-blog-huong-dan-dang-ky-ku-web__cta-final p {
        font-size: 1rem;
    }
    .page-blog-huong-dan-dang-ky-ku-web__btn-primary {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    .page-blog-huong-dan-dang-ky-ku-web img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    .page-blog-huong-dan-dang-ky-ku-web__section,
    .page-blog-huong-dan-dang-ky-ku-web__card,
    .page-blog-huong-dan-dang-ky-ku-web__container {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
}