:root {
    --page-doi-tac-primary: #E53935;
    --page-doi-tac-secondary: #FF5A4F;
    --page-doi-tac-text-main: #333333;
    --page-doi-tac-card-bg: #FFFFFF;
    --page-doi-tac-background: #F5F7FA;
    --page-doi-tac-border: #E0E0E0;
    --page-doi-tac-gradient-button: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%);
}

.page-doi-tac {
    font-family: Arial, sans-serif;
    color: var(--page-doi-tac-text-main);
    background-color: var(--page-doi-tac-background);
}

.page-doi-tac__content-area {
    max-width: 1170px;
    margin: 0 auto;
    padding: 40px 16px;
    box-sizing: border-box;
}

.page-doi-tac__section-title {
    font-size: 36px;
    font-weight: bold;
    color: var(--page-doi-tac-primary);
    text-align: center;
    margin-bottom: 20px;
    line-height: 1.2;
}

.page-doi-tac__section-description {
    font-size: 18px;
    color: var(--page-doi-tac-text-main);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

.page-doi-tac__dark-section {
    background-color: var(--page-doi-tac-primary);
    color: #ffffff;
}

.page-doi-tac__dark-section .page-doi-tac__section-title,
.page-doi-tac__dark-section .page-doi-tac__section-description,
.page-doi-tac__dark-section .page-doi-tac__program-card-title,
.page-doi-tac__dark-section .page-doi-tac__program-card-description,
.page-doi-tac__dark-section .page-doi-tac__step-title,
.page-doi-tac__dark-section .page-doi-tac__step-text {
    color: #ffffff;
}

.page-doi-tac__light-bg {
    background-color: var(--page-doi-tac-background);
    color: var(--page-doi-tac-text-main);
}

.page-doi-tac__hero-section {
    padding-top: 10px;
    padding-bottom: 40px;
    background-color: var(--page-doi-tac-background);
}

.page-doi-tac__hero-container {
    max-width: 1170px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    padding: 40px 16px;
    gap: 24px;
}

.page-doi-tac__hero-content {
    flex: 1 1 45%;
    min-width: 300px;
    color: var(--page-doi-tac-text-main);
    text-align: left;
}

.page-doi-tac__hero-title {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--page-doi-tac-primary);
}

.page-doi-tac__hero-description {
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 30px;
    color: var(--page-doi-tac-text-main);
}

.page-doi-tac__hero-image {
    flex: 1 1 45%;
    min-width: 300px;
    text-align: center;
}

.page-doi-tac__hero-side-image {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: 8px;
}

.page-doi-tac__hero-cta-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.page-doi-tac__btn-primary,
.page-doi-tac__btn-secondary {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: bold;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
}

.page-doi-tac__btn-primary {
    background: var(--page-doi-tac-gradient-button);
    color: #ffffff;
    border: 2px solid transparent;
}

.page-doi-tac__btn-primary:hover {
    background: var(--page-doi-tac-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.page-doi-tac__btn-secondary {
    background: var(--page-doi-tac-card-bg);
    color: var(--page-doi-tac-primary);
    border: 2px solid var(--page-doi-tac-primary);
}

.page-doi-tac__btn-secondary:hover {
    background: var(--page-doi-tac-primary);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.page-doi-tac__intro-section {
    padding: 60px 0;
}

.page-doi-tac__features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-doi-tac__feature-item {
    text-align: center;
    padding: 20px;
    background-color: var(--page-doi-tac-card-bg);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.page-doi-tac__icon-box-media {
    width: 240px;
    height: 240px;
    aspect-ratio: 1 / 1;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--page-doi-tac-secondary);
}

.page-doi-tac__icon-box-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

.page-doi-tac__feature-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--page-doi-tac-primary);
    margin-bottom: 10px;
}

.page-doi-tac__feature-text {
    font-size: 16px;
    line-height: 1.6;
    color: var(--page-doi-tac-text-main);
}

.page-doi-tac__programs-section {
    padding: 60px 0;
}

.page-doi-tac__program-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-doi-tac__program-card {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.page-doi-tac__program-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.page-doi-tac__program-card-title {
    font-size: 24px;
    font-weight: 600;
    margin: 20px 20px 10px;
    color: #ffffff;
}

.page-doi-tac__program-card-description {
    font-size: 16px;
    line-height: 1.6;
    margin: 0 20px 20px;
    flex-grow: 1;
    color: #ffffff;
}

.page-doi-tac__program-card .page-doi-tac__btn-secondary {
    margin: 0 20px 20px;
    align-self: flex-start;
}

.page-doi-tac__benefits-section {
    padding: 60px 0;
}

.page-doi-tac__benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.page-doi-tac__benefit-item {
    background-color: var(--page-doi-tac-card-bg);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    border-left: 5px solid var(--page-doi-tac-primary);
}

.page-doi-tac__benefit-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--page-doi-tac-primary);
    margin-bottom: 10px;
}

.page-doi-tac__benefit-text {
    font-size: 16px;
    line-height: 1.6;
    color: var(--page-doi-tac-text-main);
}

.page-doi-tac__benefits-image-wrapper {
    text-align: center;
    margin-top: 40px;
}

.page-doi-tac__benefits-image {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.page-doi-tac__guide-section {
    padding: 60px 0;
}

.page-doi-tac__steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.page-doi-tac__step-item {
    text-align: center;
    padding: 25px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-doi-tac__step-number {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--page-doi-tac-secondary);
    color: #ffffff;
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.page-doi-tac__step-title {
    font-size: 22px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 10px;
}

.page-doi-tac__step-text {
    font-size: 16px;
    line-height: 1.6;
    color: #ffffff;
}

.page-doi-tac__guide-cta-buttons {
    text-align: center;
    margin-top: 40px;
}

.page-doi-tac__faq-section {
    padding: 60px 0;
}

.page-doi-tac__faq-list {
    max-width: 800px;
    margin: 40px auto 0;
}

.page-doi-tac__faq-item {
    background-color: var(--page-doi-tac-card-bg);
    border: 1px solid var(--page-doi-tac-border);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.page-doi-tac__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    font-size: 18px;
    font-weight: 600;
    color: var(--page-doi-tac-primary);
    cursor: pointer;
    background-color: #fcfcfc;
    border-bottom: 1px solid transparent;
}

.page-doi-tac__faq-item[open] .page-doi-tac__faq-question {
    border-bottom-color: var(--page-doi-tac-border);
}

.page-doi-tac__faq-question::-webkit-details-marker {
    display: none;
}
.page-doi-tac__faq-question::marker {
    display: none;
}

.page-doi-tac__faq-qtext {
    flex-grow: 1;
}

.page-doi-tac__faq-toggle {
    font-size: 24px;
    font-weight: bold;
    color: var(--page-doi-tac-secondary);
    margin-left: 15px;
    transition: transform 0.3s ease;
}

.page-doi-tac__faq-item[open] .page-doi-tac__faq-toggle {
    transform: rotate(45deg);
}

.page-doi-tac__faq-answer {
    padding: 15px 25px 20px;
    font-size: 16px;
    line-height: 1.6;
    color: var(--page-doi-tac-text-main);
    animation: fadein 0.3s ease-out;
}

@keyframes fadein {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.page-doi-tac__cta-section {
    padding: 60px 0;
    text-align: center;
}

.page-doi-tac__cta-content {
    max-width: 900px;
    margin: 0 auto;
}

.page-doi-tac__cta-buttons {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.page-doi-tac img {
    max-width: 100%;
    height: auto;
    display: block;
}

.page-doi-tac__section,
.page-doi-tac__card,
.page-doi-tac__container,
.page-doi-tac__hero-container,
.page-doi-tac__content-area {
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
}

@media (max-width: 768px) {
    .page-doi-tac__hero-section {
        padding-top: 10px !important;
    }
    .page-doi-tac__hero-container {
        flex-direction: column;
        padding: 20px 15px;
        gap: 20px;
    }
    .page-doi-tac__hero-content {
        order: 2;
        text-align: center;
    }
    .page-doi-tac__hero-image {
        order: 1;
    }
    .page-doi-tac__hero-title {
        font-size: 2.2rem;
    }
    .page-doi-tac__hero-description {
        font-size: 16px;
    }
    .page-doi-tac__hero-cta-buttons {
        justify-content: center;
        flex-direction: column;
        gap: 10px;
    }

    .page-doi-tac__section-title {
        font-size: 28px;
    }
    .page-doi-tac__section-description {
        font-size: 16px;
        margin-bottom: 30px;
    }
    .page-doi-tac__content-area {
        padding: 30px 15px;
    }

    .page-doi-tac__btn-primary,
    .page-doi-tac__btn-secondary,
    .page-doi-tac a[class*="button"],
    .page-doi-tac a[class*="btn"] {
        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;
        font-size: 15px;
    }
    .page-doi-tac__hero-cta-buttons,
    .page-doi-tac__guide-cta-buttons,
    .page-doi-tac__cta-buttons {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
        flex-wrap: wrap !important;
        gap: 10px;
        flex-direction: column;
    }

    .page-doi-tac__intro-section {
        padding: 40px 0;
    }
    .page-doi-tac__features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .page-doi-tac__icon-box-media {
        width: 180px !important;
        height: 180px !important;
        margin-bottom: 15px;
    }
    .page-doi-tac__icon-box-media img {
        height: 100% !important;
        object-fit: cover !important;
    }
    .page-doi-tac__feature-title {
        font-size: 20px;
    }
    .page-doi-tac__feature-text {
        font-size: 15px;
    }

    .page-doi-tac__programs-section {
        padding: 40px 0;
    }
    .page-doi-tac__program-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .page-doi-tac__program-image {
        height: 180px;
    }
    .page-doi-tac__program-card-title {
        font-size: 20px;
        margin: 15px 15px 8px;
    }
    .page-doi-tac__program-card-description {
        font-size: 15px;
        margin: 0 15px 15px;
    }
    .page-doi-tac__program-card .page-doi-tac__btn-secondary {
        margin: 0 15px 15px;
    }

    .page-doi-tac__benefits-section {
        padding: 40px 0;
    }
    .page-doi-tac__benefits-grid {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-bottom: 30px;
    }
    .page-doi-tac__benefit-item {
        padding: 20px;
    }
    .page-doi-tac__benefit-title {
        font-size: 18px;
    }
    .page-doi-tac__benefit-text {
        font-size: 15px;
    }
    .page-doi-tac__benefits-image-wrapper {
        margin-top: 30px;
    }

    .page-doi-tac__guide-section {
        padding: 40px 0;
    }
    .page-doi-tac__steps-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .page-doi-tac__step-number {
        width: 50px;
        height: 50px;
        font-size: 28px;
        margin-bottom: 15px;
    }
    .page-doi-tac__step-title {
        font-size: 20px;
    }
    .page-doi-tac__step-text {
        font-size: 15px;
    }
    .page-doi-tac__guide-cta-buttons {
        margin-top: 30px;
    }

    .page-doi-tac__faq-section {
        padding: 40px 0;
    }
    .page-doi-tac__faq-list {
        margin-top: 30px;
    }
    .page-doi-tac__faq-question {
        padding: 15px 20px;
        font-size: 16px;
    }
    .page-doi-tac__faq-answer {
        padding: 10px 20px 15px;
        font-size: 15px;
    }

    .page-doi-tac__cta-section {
        padding: 40px 0;
    }
    .page-doi-tac__cta-buttons {
        margin-top: 20px;
        flex-direction: column;
        gap: 10px;
    }

    .page-doi-tac img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
}