/* style/index.css */

:root {
    --primary-color: #E53935;
    --secondary-color: #FF5A4F;
    --text-main-color: #333333;
    --card-bg-color: #FFFFFF;
    --background-color: #F5F7FA;
    --border-color: #E0E0E0;
    --btn-primary-gradient: linear-gradient(180deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    --promo-box-bg: #fffbe6;
    --promo-box-border: #111;
    --warning-card-bg: #fff4f4;
    --warning-card-border-left: #ff4141;
    --info-card-bg: #f9f9f9;
    --info-card-border: #ddd;
    --btn-promo-color: #d62828;
}

.page-index {
    font-family: Arial, sans-serif;
    color: var(--text-main-color);
    line-height: 1.6;
    background-color: var(--background-color); /* Matches shared.css var(--bg-color) assumption */
}

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

.page-index__section {
    padding: 40px 0;
}

.page-index__top-section {
    padding-top: 10px; /* Small top padding, body handles --header-offset */
    text-align: center;
    padding-bottom: 20px;
}

.page-index__page-title {
    font-size: clamp(2em, 4vw, 2.8em);
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 15px;
    line-height: 1.2;
}

.page-index__lead-text {
    font-size: 1.1em;
    margin-bottom: 30px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.page-index__top-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.page-index__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 30px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    min-height: 44px; /* Minimum touch target height */
    box-sizing: border-box;
    transition: background-color 0.3s ease;
    white-space: normal;
    word-wrap: break-word;
    text-align: center;
}

.page-index__btn--primary {
    background: var(--btn-primary-gradient);
    color: #ffffff;
    border: none;
}

.page-index__btn--primary:hover {
    opacity: 0.9;
}

.page-index__btn--secondary {
    background-color: #ffffff;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.page-index__btn--secondary:hover {
    background-color: var(--primary-color);
    color: #ffffff;
}

.page-index__section-title {
    font-size: clamp(1.8em, 3.5vw, 2.5em);
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 30px;
    font-weight: bold;
    line-height: 1.3;
}

.page-index__section-title--small {
    font-size: clamp(1.5em, 3vw, 2em);
    margin-bottom: 20px;
}

.page-index__icon {
    margin-right: 10px;
    color: var(--secondary-color);
}

.page-index__announcement-section p,
.page-index__brand-overview-section p,
.page-index__seo-content p,
.page-index__registration-tutorial p,
.page-index__faq-section p {
    margin-bottom: 15px;
    text-align: justify;
}

.page-index__feature-list,
.page-index__facts-list,
.page-index__recognition-list {
    list-style: decimal;
    padding-left: 25px;
    margin-bottom: 20px;
}

.page-index__feature-list li,
.page-index__facts-list li,
.page-index__recognition-list li {
    margin-bottom: 10px;
}

.page-index__highlight-text {
    text-align: center;
    font-style: italic;
    color: var(--primary-color);
    font-weight: bold;
    margin-top: 20px;
}

.page-index__info-card {
    background-color: var(--info-card-bg);
    border: 1px solid var(--info-card-border);
    border-radius: 8px;
    padding: 25px;
    margin-top: 30px;
    margin-bottom: 20px;
}

.page-index__info-card ul {
    list-style: disc;
    padding-left: 20px;
    margin-bottom: 10px;
}

.page-index__info-card li {
    margin-bottom: 8px;
}

.page-index__warning-card {
    background-color: var(--warning-card-bg);
    border-left: 5px solid var(--warning-card-border-left);
    padding: 20px;
    border-radius: 8px;
    font-weight: bold;
    color: var(--text-main-color);
    margin-bottom: 30px;
}

.page-index__seo-content h2,
.page-index__seo-content h3,
.page-index__registration-tutorial h2,
.page-index__registration-tutorial h3,
.page-index__faq-section h2,
.page-index__faq-section h3 {
    text-align: left;
    color: var(--primary-color);
    margin-top: 30px;
    margin-bottom: 15px;
    font-weight: bold;
}

.page-index__seo-content h3,
.page-index__registration-tutorial h3,
.page-index__faq-section h3 {
    font-size: clamp(1.2em, 2.5vw, 1.8em);
    color: var(--text-main-color);
}

.page-index__wp-caption {
    margin: 25px auto;
    max-width: 680px;
    text-align: center;
}

.page-index__wp-caption img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
}

.page-index__wp-caption figcaption {
    font-style: italic;
    color: #666;
    margin-top: 10px;
    font-size: 0.9em;
}

.page-index__expert-quote {
    background-color: #f0f0f0;
    border-left: 5px solid var(--secondary-color);
    padding: 20px 25px;
    margin: 30px 0;
    font-style: italic;
    font-size: 1.1em;
    color: var(--text-main-color);
    border-radius: 0 8px 8px 0;
}

.page-index__expert-quote cite {
    display: block;
    margin-top: 15px;
    font-weight: bold;
    color: var(--primary-color);
    font-style: normal;
}

.page-index__btn--text {
    display: inline-block;
    margin-top: 10px;
    color: var(--primary-color);
    text-decoration: underline;
    font-weight: bold;
    transition: color 0.3s ease;
}

.page-index__btn--text:hover {
    color: var(--secondary-color);
}

.page-index__promo-box-section {
    padding-top: 20px;
    padding-bottom: 40px;
}

.page-index__promo-box {
    background-color: var(--promo-box-bg);
    border: 2px dashed var(--promo-box-border);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    margin: 0 auto;
    max-width: 800px;
}

.page-index__promo-title {
    font-size: clamp(1.5em, 3vw, 2em);
    color: var(--primary-color);
    margin-bottom: 20px;
    font-weight: bold;
}

.page-index__promo-features {
    list-style: none;
    padding: 0;
    margin-bottom: 25px;
    font-size: 1.05em;
}

.page-index__promo-features li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
}

.page-index__promo-features li::before {
    content: '★';
    color: var(--secondary-color);
    position: absolute;
    left: 0;
    font-size: 1.2em;
    line-height: 1;
}

.page-index__btn--promo {
    background-color: var(--btn-promo-color);
    color: #ffffff;
    border: none;
    padding: 15px 35px;
    font-size: 1.2em;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
    text-align: center;
}

.page-index__btn--promo:hover {
    opacity: 0.9;
}

.page-index__registration-tutorial h3 {
    text-align: center;
    font-size: clamp(1.4em, 2.8vw, 1.9em);
    color: var(--primary-color);
    margin-top: 35px;
    margin-bottom: 15px;
}

.page-index__faq-section {
    padding-bottom: 60px;
}

.page-index__contact-intro {
    margin-top: 30px;
    font-weight: bold;
}

.page-index__contact-info {
    list-style: none;
    padding: 0;
    margin-top: 15px;
}

.page-index__contact-info li {
    margin-bottom: 8px;
}

.page-index__contact-info li strong {
    color: var(--primary-color);
    margin-right: 5px;
}

.page-index__contact-info a {
    color: var(--primary-color);
    text-decoration: none;
}

.page-index__contact-info a:hover {
    text-decoration: underline;
}

/* --- Responsive Styles --- */

/* General image responsiveness */
.page-index img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Ensure all content containers are responsive */
.page-index__section,
.page-index__info-card,
.page-index__warning-card,
.page-index__promo-box {
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
}

@media (max-width: 768px) {
    .page-index {
        font-size: 15px;
        line-height: 1.5;
    }

    .page-index__article-wrap {
        padding: 0 15px;
    }

    .page-index__section {
        padding: 25px 0;
    }

    /* 1. 顶区标题 + 双 CTA */
    .page-index__top-section {
        padding-top: 10px !important;
        padding-bottom: 15px;
    }

    .page-index__page-title {
        font-size: 1.8em;
        margin-bottom: 10px;
    }

    .page-index__lead-text {
        font-size: 1em;
        margin-bottom: 20px;
    }

    .page-index__top-cta {
        flex-direction: column;
        gap: 10px;
    }

    .page-index__btn {
        width: 100% !important;
        max-width: 100% !important;
        padding: 10px 15px;
        font-size: 1em;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    /* 2. 单栏长文容器 */
    .page-index__section-title {
        font-size: 1.6em;
        margin-bottom: 20px;
    }

    .page-index__section-title--small {
        font-size: 1.3em;
        margin-bottom: 15px;
    }

    .page-index__announcement-section p,
    .page-index__brand-overview-section p,
    .page-index__seo-content p,
    .page-index__registration-tutorial p,
    .page-index__faq-section p {
        text-align: left;
    }

    .page-index__info-card,
    .page-index__warning-card {
        padding: 15px;
        margin-top: 20px;
        margin-bottom: 15px;
    }

    /* 3. 通用图片与 figure */
    .page-index img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }

    .page-index__wp-caption {
        margin: 20px auto;
    }

    .page-index__wp-caption figcaption {
        font-size: 0.85em;
    }

    .page-index__seo-content h2,
    .page-index__seo-content h3,
    .page-index__registration-tutorial h2,
    .page-index__registration-tutorial h3,
    .page-index__faq-section h2,
    .page-index__faq-section h3 {
        font-size: 1.4em;
        margin-top: 25px;
        margin-bottom: 10px;
    }

    .page-index__seo-content h3,
    .page-index__registration-tutorial h3,
    .page-index__faq-section h3 {
        font-size: 1.2em;
    }

    .page-index__expert-quote {
        padding: 15px 20px;
        margin: 25px 0;
        font-size: 1em;
    }

    /* 4. 按钮与按钮容器 (already covered by .page-index__btn and .page-index__top-cta) */
    .page-index__btn--promo {
        width: 100% !important;
        max-width: 100% !important;
        padding: 12px 20px;
        font-size: 1.1em;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    /* Promo box */
    .page-index__promo-box {
        padding: 20px;
    }

    .page-index__promo-title {
        font-size: 1.4em;
        margin-bottom: 15px;
    }

    .page-index__promo-features li {
        padding-left: 20px;
        font-size: 1em;
    }

    /* 5. 注册教程与 FAQ 区块 */
    .page-index__registration-tutorial h3 {
        font-size: 1.3em;
        margin-top: 30px;
        margin-bottom: 10px;
    }

    .page-index__faq-section {
        padding-bottom: 30px;
    }

    .page-index__contact-intro {
        margin-top: 20px;
    }

    .page-index__contact-info {
        margin-top: 10px;
    }
}