/* =============================================
   Hiwaike Article Styles v1.0.0
   海外客教程文章统一样式
   ============================================= */

/* 1. 外层容器：释放宽度，让它能撑满屏幕 */
.hw-article-wrapper {
    width: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #333;
    background: #fff;
}

/* 2. 顶部蓝色渐变 Hero：全宽延伸，增加上下留白 */
.hw-article-wrapper .article-hero {
    background: linear-gradient(135deg, #0052cc 0%, #00aaff 100%);
    padding: 80px 20px;
    text-align: center;
    color: #fff;
    margin-bottom: 40px;
}
.hw-article-wrapper .category-badge {
    background: rgba(255,255,255,0.2);
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 1px;
}
.hw-article-wrapper .article-hero h1 {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.3;
    margin: 0 auto 20px auto;
    max-width: 900px;
    color: #fff !important;
}
.hw-article-wrapper .article-hero .meta {
    font-size: 15px;
    opacity: 0.9;
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

/* 3. 正文容器：单独限制 860px 宽度并绝对居中 */
.hw-article-wrapper .article-container {
    max-width: 860px;
    margin: 0 auto;
    padding: 0 20px 60px 20px;
}
@media (max-width: 768px) {
    .hw-article-wrapper .article-hero { padding: 50px 20px; }
    .hw-article-wrapper .article-hero h1 { font-size: 28px; }
}

/* 基础文字与链接 */
.hw-article-wrapper p { font-size: 17px; line-height: 1.8; color: #4a5568; margin-bottom: 24px; }
.hw-article-wrapper a { color: #0052cc; text-decoration: none; }
.hw-article-wrapper a:hover { text-decoration: underline; }
.hw-article-wrapper ul { margin-bottom: 24px; padding-left: 20px; }
.hw-article-wrapper li { font-size: 17px; line-height: 1.8; color: #4a5568; margin-bottom: 10px; }

/* 目录 (TOC) 组件 */
.hw-article-wrapper .toc {
    background: #f8f9fc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 50px;
}
.hw-article-wrapper .toc h3 { font-size: 18px; font-weight: 700; margin: 0 0 20px 0; color: #1a202c; }
.hw-article-wrapper .toc ol { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 20px; margin: 0; padding-left: 20px; }
@media (max-width: 768px) { .hw-article-wrapper .toc ol { grid-template-columns: 1fr; } }
.hw-article-wrapper .toc li { margin-bottom: 0; }
.hw-article-wrapper .toc a { color: #4a5568; font-size: 15px; transition: color 0.2s; }
.hw-article-wrapper .toc a:hover { color: #0052cc; }

/* 核心：带数字徽章的 H2 标题 */
.hw-article-wrapper h2 {
    display: flex;
    align-items: center;
    gap: 15px;
    margin: 50px 0 25px 0;
    font-size: 26px;
    font-weight: 700;
    color: #1a202c;
}
.hw-article-wrapper .section-num {
    background: #0052cc;
    color: #fff;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(0,82,204,0.3);
}

/* 图片模块 */
.hw-article-wrapper .img-block { text-align: center; margin: 40px 0; }
.hw-article-wrapper .img-block img { width: 100%; border-radius: 12px; border: 1px solid #e2e8f0; box-shadow: 0 10px 25px rgba(0,0,0,0.05); }
.hw-article-wrapper .img-caption { font-size: 14px; color: #718096; margin-top: 12px; }

/* 步骤条模块 */
.hw-article-wrapper .steps { display: flex; flex-direction: column; gap: 15px; margin: 30px 0; }
.hw-article-wrapper .step-card { background: #f8f9fc; border-left: 4px solid #0052cc; padding: 20px 25px; border-radius: 0 8px 8px 0; display: flex; align-items: flex-start; gap: 15px; }
.hw-article-wrapper .step-num { background: #e6f0ff; color: #0052cc; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 14px; flex-shrink: 0; margin-top: 2px; }
.hw-article-wrapper .step-content h4 { font-size: 18px; color: #1a202c; margin: 0 0 8px 0; }
.hw-article-wrapper .step-content p { font-size: 15px; color: #4a5568; line-height: 1.6; margin: 0; }

/* 数据表格 */
.hw-article-wrapper .compare-table { width: 100%; border-collapse: collapse; text-align: left; font-size: 15px; margin: 30px 0; border-radius: 10px; overflow: hidden; border: 1px solid #e2e8f0; }
.hw-article-wrapper .compare-table th { background: linear-gradient(90deg, #0052cc 0%, #007aff 100%); color: #fff; padding: 16px; font-weight: 600; white-space: nowrap; }
.hw-article-wrapper .compare-table td { padding: 16px; border-bottom: 1px solid #edf2f7; color: #4a5568; }
.hw-article-wrapper .compare-table tr:last-child td { border-bottom: none; }
.hw-article-wrapper .compare-table tr:nth-child(even) { background: #f8f9fc; }

/* 提示框 & 警告框 */
.hw-article-wrapper .tip-box { background: #f0f7ff; border-left: 4px solid #0052cc; padding: 20px 25px; border-radius: 0 8px 8px 0; margin: 30px 0; }
.hw-article-wrapper .warning-box { background: #fffbef; border-left: 4px solid #f6ad55; padding: 20px 25px; border-radius: 0 8px 8px 0; margin: 30px 0; color: #9c4221; }
.hw-article-wrapper .tip-title { font-weight: 700; margin-bottom: 8px; font-size: 16px; color: #1a202c; }
.hw-article-wrapper .warning-box .tip-title { color: #dd6b20; }

/* 底部 CTA 蓝色大框 */
.hw-article-wrapper .cta-block { background: linear-gradient(135deg, #0047b3 0%, #0088ff 100%); border-radius: 16px; padding: 40px; text-align: center; color: #fff; margin-top: 50px; box-shadow: 0 15px 35px rgba(0,82,204,0.2); }
.hw-article-wrapper .cta-block h3 { font-size: 24px; font-weight: 700; margin: 0 0 15px 0; color: #fff; }
.hw-article-wrapper .cta-block p { color: rgba(255,255,255,0.9); margin-bottom: 25px; }
.hw-article-wrapper .cta-btn { display: inline-block; background: #fff; color: #0052cc; padding: 14px 35px; border-radius: 30px; font-size: 18px; font-weight: 700; transition: transform 0.2s, box-shadow 0.2s; }
.hw-article-wrapper .cta-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 20px rgba(0,0,0,0.15); text-decoration: none; }

/* 标签 & 相关文章 */
.hw-article-wrapper .tags { margin: 40px 0; display: flex; flex-wrap: wrap; gap: 10px; }
.hw-article-wrapper .tag { background: #f1f5f9; color: #475569; padding: 6px 14px; border-radius: 20px; font-size: 14px; }
.hw-article-wrapper .related-articles { border-top: 1px solid #e2e8f0; padding-top: 40px; margin-top: 40px; }
.hw-article-wrapper .related-articles h3 { font-size: 20px; margin-bottom: 20px; }
.hw-article-wrapper .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 768px) { .hw-article-wrapper .related-grid { grid-template-columns: 1fr; } }
.hw-article-wrapper .related-card { border: 1px solid #e2e8f0; padding: 20px; border-radius: 10px; transition: box-shadow 0.2s; display: block; }
.hw-article-wrapper .related-card:hover { box-shadow: 0 10px 20px rgba(0,0,0,0.05); text-decoration: none; }
.hw-article-wrapper .rc-cat { font-size: 12px; color: #0052cc; font-weight: 700; margin-bottom: 8px; }
.hw-article-wrapper .related-card h4 { font-size: 16px; margin: 0; color: #1a202c; line-height: 1.4; }



/* ============================================================

/* TL;DR 摘要框 */
.hw-article-wrapper .tldr-box {
    background: linear-gradient(135deg, #f0f7ff 0%, #e8f4fd 100%);
    border: 1px solid #b3d4fc;
    border-radius: 12px;
    padding: 24px 28px;
    margin-bottom: 40px;
    font-size: 16px;
    line-height: 1.8;
    color: #2c5282;
}
.hw-article-wrapper .tldr-box strong { color: #0052cc; }

/* H3 子标题 */
.hw-article-wrapper .article-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: #2d3748;
    margin: 32px 0 16px 0;
    padding-left: 12px;
    border-left: 3px solid #0052cc;
}

/* 功能亮点网格 */
.hw-article-wrapper .feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 30px 0; }
.hw-article-wrapper .feature-item { background: #f8f9fc; border: 1px solid #e2e8f0; border-radius: 10px; padding: 20px; }
.hw-article-wrapper .feature-item h4 { font-size: 16px; font-weight: 600; color: #1a202c; margin: 0 0 8px 0; }
.hw-article-wrapper .feature-item p { font-size: 14px; color: #718096; margin: 0; line-height: 1.6; }

/* 优劣对比 */
.hw-article-wrapper .pros-cons { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 30px 0; }
.hw-article-wrapper .pros { background: #f0fff4; border: 1px solid #c6f6d5; border-radius: 10px; padding: 20px; }
.hw-article-wrapper .cons { background: #fff5f5; border: 1px solid #fed7d7; border-radius: 10px; padding: 20px; }
.hw-article-wrapper .pros h4 { color: #276749; margin: 0 0 12px 0; }
.hw-article-wrapper .cons h4 { color: #9b2c2c; margin: 0 0 12px 0; }
.hw-article-wrapper .pros li, .hw-article-wrapper .cons li { font-size: 15px; margin-bottom: 8px; }

/* 响应式补充 */
@media (max-width: 768px) {
    .hw-article-wrapper .feature-grid { grid-template-columns: 1fr; }
    .hw-article-wrapper .pros-cons { grid-template-columns: 1fr; }
    .hw-article-wrapper .article-hero .meta { flex-direction: column; gap: 8px; }
}


/* === 向后兼容 hw-semrush-wrapper === */
/* 1. 外层容器：释放宽度，让它能撑满屏幕 */
.hw-semrush-wrapper {
    width: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #333;
    background: #fff;
}

/* 2. 顶部蓝色渐变 Hero：全宽延伸，增加上下留白 */
.hw-semrush-wrapper .article-hero {
    background: linear-gradient(135deg, #0052cc 0%, #00aaff 100%);
    padding: 80px 20px;
    text-align: center;
    color: #fff;
    margin-bottom: 40px;
}
.hw-semrush-wrapper .category-badge {
    background: rgba(255,255,255,0.2);
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 1px;
}
.hw-semrush-wrapper .article-hero h1 {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.3;
    margin: 0 auto 20px auto;
    max-width: 900px;
    color: #fff !important;
}
.hw-semrush-wrapper .article-hero .meta {
    font-size: 15px;
    opacity: 0.9;
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

/* 3. 正文容器：单独限制 860px 宽度并绝对居中 */
.hw-semrush-wrapper .article-container {
    max-width: 860px;
    margin: 0 auto;
    padding: 0 20px 60px 20px;
}
@media (max-width: 768px) {
    .hw-semrush-wrapper .article-hero { padding: 50px 20px; }
    .hw-semrush-wrapper .article-hero h1 { font-size: 28px; }
}

/* 基础文字与链接 */
.hw-semrush-wrapper p { font-size: 17px; line-height: 1.8; color: #4a5568; margin-bottom: 24px; }
.hw-semrush-wrapper a { color: #0052cc; text-decoration: none; }
.hw-semrush-wrapper a:hover { text-decoration: underline; }
.hw-semrush-wrapper ul { margin-bottom: 24px; padding-left: 20px; }
.hw-semrush-wrapper li { font-size: 17px; line-height: 1.8; color: #4a5568; margin-bottom: 10px; }

/* 目录 (TOC) 组件 */
.hw-semrush-wrapper .toc {
    background: #f8f9fc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 50px;
}
.hw-semrush-wrapper .toc h3 { font-size: 18px; font-weight: 700; margin: 0 0 20px 0; color: #1a202c; }
.hw-semrush-wrapper .toc ol { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 20px; margin: 0; padding-left: 20px; }
@media (max-width: 768px) { .hw-semrush-wrapper .toc ol { grid-template-columns: 1fr; } }
.hw-semrush-wrapper .toc li { margin-bottom: 0; }
.hw-semrush-wrapper .toc a { color: #4a5568; font-size: 15px; transition: color 0.2s; }
.hw-semrush-wrapper .toc a:hover { color: #0052cc; }

/* 核心：带数字徽章的 H2 标题 */
.hw-semrush-wrapper h2 {
    display: flex;
    align-items: center;
    gap: 15px;
    margin: 50px 0 25px 0;
    font-size: 26px;
    font-weight: 700;
    color: #1a202c;
}
.hw-semrush-wrapper .section-num {
    background: #0052cc;
    color: #fff;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(0,82,204,0.3);
}

/* 图片模块 */
.hw-semrush-wrapper .img-block { text-align: center; margin: 40px 0; }
.hw-semrush-wrapper .img-block img { width: 100%; border-radius: 12px; border: 1px solid #e2e8f0; box-shadow: 0 10px 25px rgba(0,0,0,0.05); }
.hw-semrush-wrapper .img-caption { font-size: 14px; color: #718096; margin-top: 12px; }

/* 步骤条模块 */
.hw-semrush-wrapper .steps { display: flex; flex-direction: column; gap: 15px; margin: 30px 0; }
.hw-semrush-wrapper .step-card { background: #f8f9fc; border-left: 4px solid #0052cc; padding: 20px 25px; border-radius: 0 8px 8px 0; display: flex; align-items: flex-start; gap: 15px; }
.hw-semrush-wrapper .step-num { background: #e6f0ff; color: #0052cc; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 14px; flex-shrink: 0; margin-top: 2px; }
.hw-semrush-wrapper .step-content h4 { font-size: 18px; color: #1a202c; margin: 0 0 8px 0; }
.hw-semrush-wrapper .step-content p { font-size: 15px; color: #4a5568; line-height: 1.6; margin: 0; }

/* 数据表格 */
.hw-semrush-wrapper .compare-table { width: 100%; border-collapse: collapse; text-align: left; font-size: 15px; margin: 30px 0; border-radius: 10px; overflow: hidden; border: 1px solid #e2e8f0; }
.hw-semrush-wrapper .compare-table th { background: linear-gradient(90deg, #0052cc 0%, #007aff 100%); color: #fff; padding: 16px; font-weight: 600; white-space: nowrap; }
.hw-semrush-wrapper .compare-table td { padding: 16px; border-bottom: 1px solid #edf2f7; color: #4a5568; }
.hw-semrush-wrapper .compare-table tr:last-child td { border-bottom: none; }
.hw-semrush-wrapper .compare-table tr:nth-child(even) { background: #f8f9fc; }

/* 提示框 & 警告框 */
.hw-semrush-wrapper .tip-box { background: #f0f7ff; border-left: 4px solid #0052cc; padding: 20px 25px; border-radius: 0 8px 8px 0; margin: 30px 0; }
.hw-semrush-wrapper .warning-box { background: #fffbef; border-left: 4px solid #f6ad55; padding: 20px 25px; border-radius: 0 8px 8px 0; margin: 30px 0; color: #9c4221; }
.hw-semrush-wrapper .tip-title { font-weight: 700; margin-bottom: 8px; font-size: 16px; color: #1a202c; }
.hw-semrush-wrapper .warning-box .tip-title { color: #dd6b20; }

/* 底部 CTA 蓝色大框 */
.hw-semrush-wrapper .cta-block { background: linear-gradient(135deg, #0047b3 0%, #0088ff 100%); border-radius: 16px; padding: 40px; text-align: center; color: #fff; margin-top: 50px; box-shadow: 0 15px 35px rgba(0,82,204,0.2); }
.hw-semrush-wrapper .cta-block h3 { font-size: 24px; font-weight: 700; margin: 0 0 15px 0; color: #fff; }
.hw-semrush-wrapper .cta-block p { color: rgba(255,255,255,0.9); margin-bottom: 25px; }
.hw-semrush-wrapper .cta-btn { display: inline-block; background: #fff; color: #0052cc; padding: 14px 35px; border-radius: 30px; font-size: 18px; font-weight: 700; transition: transform 0.2s, box-shadow 0.2s; }
.hw-semrush-wrapper .cta-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 20px rgba(0,0,0,0.15); text-decoration: none; }

/* 标签 & 相关文章 */
.hw-semrush-wrapper .tags { margin: 40px 0; display: flex; flex-wrap: wrap; gap: 10px; }
.hw-semrush-wrapper .tag { background: #f1f5f9; color: #475569; padding: 6px 14px; border-radius: 20px; font-size: 14px; }
.hw-semrush-wrapper .related-articles { border-top: 1px solid #e2e8f0; padding-top: 40px; margin-top: 40px; }
.hw-semrush-wrapper .related-articles h3 { font-size: 20px; margin-bottom: 20px; }
.hw-semrush-wrapper .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 768px) { .hw-semrush-wrapper .related-grid { grid-template-columns: 1fr; } }
.hw-semrush-wrapper .related-card { border: 1px solid #e2e8f0; padding: 20px; border-radius: 10px; transition: box-shadow 0.2s; display: block; }
.hw-semrush-wrapper .related-card:hover { box-shadow: 0 10px 20px rgba(0,0,0,0.05); text-decoration: none; }
.hw-semrush-wrapper .rc-cat { font-size: 12px; color: #0052cc; font-weight: 700; margin-bottom: 8px; }
.hw-semrush-wrapper .related-card h4 { font-size: 16px; margin: 0; color: #1a202c; line-height: 1.4; }



/* ============================================================