/* style/doi-tac.css */
:root {
    --primary-color: #2F6BFF;
    --secondary-color: #6FA3FF;
    --button-gradient: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
    --card-bg: #FFFFFF;
    --page-bg-light: #F4F7FB;
    --text-main: #1F2D3D;
    --text-black: #000000;
    --border-color: #D6E2FF;
    --glow-color: #A5C4FF;
}

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

.page-doi-tac__container {
    max-width: 1150px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
}

/* Hero Section */
.page-doi-tac__hero-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 10px; /* Small top padding, body handles --header-offset */
    padding-bottom: 60px;
    background-color: var(--page-bg-light);
    position: relative;
}

.page-doi-tac__hero-image-wrap {
    width: 100%;
    max-height: 550px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.page-doi-tac__hero-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
}

.page-doi-tac__hero-content {
    text-align: center;
    padding: 40px 20px;
    max-width: 900px;
    width: 100%;
    box-sizing: border-box;
    margin-top: -80px; /* Overlap slightly with image for visual flow */
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    z-index: 10;
}

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

.page-doi-tac__hero-description {
    font-size: 1.2rem;
    line-height: 1.6;
    color: var(--text-main);
    margin-bottom: 30px;
}

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

.page-doi-tac__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 30px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    white-space: normal; /* Allow text wrapping */
    word-wrap: break-word; /* Allow text wrapping */
    box-sizing: border-box;
    max-width: 100%;
}

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

.page-doi-tac__btn--primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(47, 107, 255, 0.3);
}

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

.page-doi-tac__btn--secondary:hover {
    background: var(--primary-color);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(47, 107, 255, 0.2);
}

/* General Section Styles */
.page-doi-tac__section {
    padding: 80px 0;
    background-color: var(--page-bg-light);
}

.page-doi-tac__section:nth-of-type(even) {
    background-color: var(--card-bg);
}

.page-doi-tac__section-title {
    font-size: clamp(2rem, 3vw, 2.8rem);
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 20px;
    line-height: 1.3;
}

.page-doi-tac__section-description {
    font-size: 1.15rem;
    line-height: 1.7;
    color: var(--text-main);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
}

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

.page-doi-tac__benefit-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-main);
}

.page-doi-tac__benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.page-doi-tac__benefit-icon {
    width: 100%;
    max-width: 250px;
    height: auto;
    margin-bottom: 20px;
    object-fit: contain;
    border-radius: 8px;
}

.page-doi-tac__benefit-title {
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.page-doi-tac__benefit-text {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-main);
}

/* Commission Section */
.page-doi-tac__section--commission {
    background-color: var(--primary-color);
    color: #ffffff;
}

.page-doi-tac__section--commission .page-doi-tac__section-title,
.page-doi-tac__section--commission .page-doi-tac__section-description {
    color: #ffffff;
}

.page-doi-tac__commission-details {
    max-width: 900px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
    text-align: left;
}

.page-doi-tac__commission-details p {
    margin-bottom: 20px;
}

.page-doi-tac__commission-details ul {
    list-style: none;
    padding: 0;
    margin-bottom: 30px;
}

.page-doi-tac__commission-details ul li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 10px;
}

.page-doi-tac__commission-details ul li::before {
    content: '✅';
    position: absolute;
    left: 0;
    top: 0;
}

.page-doi-tac__commission-chart {
    margin: 40px auto;
    text-align: center;
    max-width: 680px;
}

.page-doi-tac__commission-chart img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    display: block;
}

.page-doi-tac__commission-chart figcaption {
    margin-top: 15px;
    font-size: 0.95rem;
    color: #f0f0f0;
}

/* Product Grid */
.page-doi-tac__product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.page-doi-tac__product-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    color: var(--text-main);
    display: flex;
    flex-direction: column;
}

.page-doi-tac__product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.page-doi-tac__product-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.page-doi-tac__product-title a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.page-doi-tac__product-title a:hover {
    color: var(--secondary-color);
}

.page-doi-tac__product-text {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-main);
}

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

.page-doi-tac__step-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    color: var(--text-main);
}

.page-doi-tac__step-title {
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.page-doi-tac__step-text {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-main);
    margin-bottom: 20px;
}

.page-doi-tac__step-image {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: 8px;
    object-fit: contain;
    display: block;
    margin: 0 auto;
}

.page-doi-tac__cta-bottom {
    text-align: center;
    margin-top: 60px;
}

/* FAQ Section */
.page-doi-tac__section--faq {
    background-color: var(--card-bg);
}

.page-doi-tac__faq-list {
    max-width: 900px;
    margin: 0 auto;
    margin-top: 40px;
}

.page-doi-tac__faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.page-doi-tac__faq-item[open] {
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    border-color: var(--primary-color);
}

.page-doi-tac__faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-main);
    cursor: pointer;
    list-style: none;
    position: relative;
    user-select: none;
}

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

.page-doi-tac__faq-toggle {
    font-size: 1.5rem;
    line-height: 1;
    transition: transform 0.3s ease;
    color: var(--primary-color);
}

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

.page-doi-tac__faq-answer {
    padding: 0 25px 20px;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-main);
    opacity: 0;
    height: 0;
    transition: opacity 0.3s ease, height 0.3s ease;
}

.page-doi-tac__faq-item[open] .page-doi-tac__faq-answer {
    opacity: 1;
    height: auto; /* Will be overridden by JS for smooth animation */
}

/* General Image styles */
.page-doi-tac img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .page-doi-tac__hero-content {
        margin-top: -60px;
        padding: 30px 20px;
    }

    .page-doi-tac__main-title {
        font-size: 2.8rem;
    }

    .page-doi-tac__hero-description {
        font-size: 1.1rem;
    }

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

    .page-doi-tac__section-title {
        font-size: 2.2rem;
    }

    .page-doi-tac__section-description {
        font-size: 1.05rem;
        margin-bottom: 40px;
    }

    .page-doi-tac__benefits-grid,
    .page-doi-tac__product-grid,
    .page-doi-tac__process-steps {
        gap: 20px;
    }

    .page-doi-tac__benefit-card,
    .page-doi-tac__product-card,
    .page-doi-tac__step-card {
        padding: 25px;
    }

    .page-doi-tac__benefit-title,
    .page-doi-tac__product-title,
    .page-doi-tac__step-title {
        font-size: 1.4rem;
    }

    .page-doi-tac__commission-details {
        font-size: 1rem;
    }

    .page-doi-tac__faq-question {
        font-size: 1.05rem;
        padding: 18px 22px;
    }
}

@media (max-width: 768px) {
    /* 顶区标题 + 双 CTA */
    .page-doi-tac__hero-section {
        padding-top: 10px !important;
        padding-bottom: 40px;
    }

    .page-doi-tac__hero-content {
        margin-top: -40px;
        padding: 25px 15px;
        border-radius: 8px;
    }

    .page-doi-tac__main-title {
        font-size: 2rem;
        margin-bottom: 15px;
    }

    .page-doi-tac__hero-description {
        font-size: 1rem;
        margin-bottom: 25px;
    }

    .page-doi-tac__hero-cta-buttons {
        flex-direction: column;
        gap: 10px;
    }

    .page-doi-tac__btn {
        padding: 12px 20px;
        font-size: 1rem;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    /* 单栏长文容器 */
    .page-doi-tac__container {
        padding-left: 15px;
        padding-right: 15px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .page-doi-tac__section {
        padding: 40px 0;
    }

    .page-doi-tac__section-title {
        font-size: 1.8rem;
        margin-bottom: 15px;
    }

    .page-doi-tac__section-description {
        font-size: 1rem;
        margin-bottom: 30px;
    }

    /* 通用图片与 figure */
    .page-doi-tac img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
        display: block;
    }

    .page-doi-tac__commission-chart {
        margin: 30px auto;
    }

    .page-doi-tac__commission-chart figcaption {
        font-size: 0.9rem;
    }

    /* 按钮与按钮容器 */
    .page-doi-tac__cta-bottom {
        margin-top: 40px;
    }

    .page-doi-tac__cta-bottom .page-doi-tac__btn {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    /* 注册教程与 FAQ 区块 */
    .page-doi-tac__benefits-grid,
    .page-doi-tac__product-grid,
    .page-doi-tac__process-steps {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 20px;
    }

    .page-doi-tac__benefit-card,
    .page-doi-tac__product-card,
    .page-doi-tac__step-card {
        padding: 20px;
        border-radius: 8px;
    }

    .page-doi-tac__benefit-title,
    .page-doi-tac__product-title,
    .page-doi-tac__step-title {
        font-size: 1.3rem;
    }

    .page-doi-tac__benefit-text,
    .page-doi-tac__product-text,
    .page-doi-tac__step-text,
    .page-doi-tac__commission-details p,
    .page-doi-tac__commission-details ul li,
    .page-doi-tac__faq-answer p {
        font-size: 0.95rem;
        line-height: 1.5;
    }

    .page-doi-tac__faq-question {
        font-size: 1rem;
        padding: 15px 20px;
    }

    .page-doi-tac__faq-toggle {
        font-size: 1.3rem;
    }

    .page-doi-tac__faq-answer {
        padding: 0 20px 15px;
    }
}

@media (max-width: 480px) {
    .page-doi-tac__main-title {
        font-size: 1.7rem;
    }

    .page-doi-tac__hero-description {
        font-size: 0.95rem;
    }

    .page-doi-tac__section-title {
        font-size: 1.6rem;
    }

    .page-doi-tac__section-description {
        font-size: 0.9rem;
    }

    .page-doi-tac__btn {
        padding: 10px 15px;
        font-size: 0.95rem;
    }
}