/* ========== 文章头部 Hero ========== */
.article-hero {
    position: relative;
    height: 800px;
    overflow: hidden;
    margin-top: 0;
}

.article-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
}

.article-hero-overlay {
    display: none;
}

.article-hero-curve {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    z-index: 15;
    line-height: 0;
}

.article-hero-curve svg {
    width: 100%;
    height: auto;
    display: block;
}

/* ========== 文章标题区（正文上方） ========== */
.article-header {
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--milk-divider-color);
}

.article-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.article-breadcrumb a {
    color: var(--green-primary);
    text-decoration: none;
    transition: color 0.2s;
}

.article-breadcrumb a:hover {
    color: var(--green-dark);
}

.article-breadcrumb span {
    color: var(--milk-text-color);
    opacity: 0.5;
}

.article-header h1 {
    font-family: 'Titan', sans-serif;
    font-size: 2.4rem;
    font-weight: 400;
    line-height: 1.2;
    color: var(--green-primary);
    margin-bottom: 1rem;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 0.9rem;
    color: var(--milk-text-color);
    opacity: 0.7;
}

.article-meta i {
    margin-right: 0.4rem;
}

/* ========== 文章内容区 ========== */
.article-section {
    background: var(--brands-bg);
    padding: 4rem 0;
}

.article-card {
    background: white;
    border: 1px solid #d0d5dd;
    border-radius: 24px;
    box-shadow: 0 16px 64px rgba(0, 0, 0, 0.2), 0 4px 16px rgba(0, 0, 0, 0.1);
    padding: 2.5rem;
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
    margin-top: -200px;
    z-index: 20;
}

.article-layout .article-card {
    max-width: none;
}

.article-body {
    color: var(--milk-text-color);
    line-height: 1.8;
    font-size: 1.05rem;
}

.article-lead {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--green-primary);
    line-height: 1.7;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--milk-divider-color);
}

.article-body h2 {
    font-family: 'Titan', sans-serif;
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--green-primary);
    margin: 2.5rem 0 1rem;
}

.article-body p {
    margin-bottom: 1.5rem;
}

.article-body ul {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.article-body ul li {
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

.article-body ul li strong {
    color: var(--green-primary);
}

.article-figure {
    margin: 2rem 0;
    border-radius: 12px;
    overflow: hidden;
}

.article-figure img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
}

.article-figure figcaption {
    text-align: center;
    font-size: 0.85rem;
    color: var(--milk-text-color);
    opacity: 0.7;
    margin-top: 0.75rem;
    font-style: italic;
}

.article-blockquote {
    margin: 2rem 0;
    padding: 2rem;
    background: var(--features-card-bg);
    border-left: 4px solid var(--green-primary);
    border-radius: 0 12px 12px 0;
}

.article-blockquote p {
    font-size: 1.1rem;
    font-style: italic;
    line-height: 1.7;
    margin-bottom: 0.75rem;
    color: var(--green-primary);
}

.article-blockquote cite {
    font-size: 0.9rem;
    font-style: normal;
    color: var(--milk-text-color);
    opacity: 0.7;
}

/* ========== 文章标签 ========== */
.article-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 3rem 0 1.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--milk-divider-color);
}

.article-tags-label {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--milk-text-color);
    margin-right: 0.5rem;
}

.article-tag {
    display: inline-block;
    padding: 0.35rem 1rem;
    background: var(--features-card-bg);
    color: var(--green-primary);
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 20px;
    text-decoration: none;
    border: 1px solid var(--features-card-border);
    transition: all 0.2s;
}

.article-tag:hover {
    background: var(--green-primary);
    color: white;
    border-color: var(--green-primary);
}

/* ========== 文章分享 ========== */
.article-share {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
}

.article-share-label {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--milk-text-color);
    margin-right: 0.5rem;
}

.article-share-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--features-card-bg);
    color: var(--green-primary);
    text-decoration: none;
    font-size: 1rem;
    border: 1px solid var(--features-card-border);
    transition: all 0.2s;
}

.article-share-link:hover {
    background: var(--green-primary);
    color: white;
    border-color: var(--green-primary);
}

/* ========== 带侧边栏布局 ========== */
.article-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 3rem;
    align-items: start;
}

.article-layout .article-body {
    max-width: none;
}

.article-layout .article-header {
    max-width: none;
}

/* ========== 侧边栏 ========== */
.article-sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-widget {
    background: var(--features-card-bg);
    border: 1px solid var(--features-card-border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.sidebar-widget-title {
    font-family: 'Titan', sans-serif;
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--green-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--green-primary);
}

.sidebar-search {
    display: flex;
    border: 1px solid var(--features-card-border);
    border-radius: 8px;
    overflow: hidden;
}

.sidebar-search input {
    flex: 1;
    padding: 0.6rem 1rem;
    border: none;
    outline: none;
    font-size: 0.9rem;
    font-family: 'Nunito Sans', sans-serif;
    background: transparent;
    color: var(--milk-text-color);
}

.sidebar-search button {
    padding: 0.6rem 1rem;
    background: var(--green-primary);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.2s;
}

.sidebar-search button:hover {
    background: var(--green-dark);
}

.sidebar-categories {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-categories li {
    border-bottom: 1px solid var(--features-card-border);
}

.sidebar-categories li:last-child {
    border-bottom: none;
}

.sidebar-categories li a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 0;
    color: var(--milk-text-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.sidebar-categories li a:hover {
    color: var(--green-primary);
}

.sidebar-categories li a span {
    font-size: 0.8rem;
    color: var(--green-primary);
    background: var(--milk-bg);
    padding: 0.15rem 0.6rem;
    border-radius: 10px;
}

.sidebar-recent {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-recent li {
    margin-bottom: 1rem;
}

.sidebar-recent li:last-child {
    margin-bottom: 0;
}

.sidebar-recent li a {
    display: flex;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--milk-text-color);
    transition: color 0.2s;
}

.sidebar-recent li a:hover {
    color: var(--green-primary);
}

.sidebar-recent li a img {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0;
}

.sidebar-recent li a div {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.sidebar-recent li a span {
    font-size: 0.85rem;
    font-weight: 600;
    line-height: 1.4;
}

.sidebar-recent li a time {
    font-size: 0.75rem;
    color: var(--green-primary);
    margin-top: 0.25rem;
}

.sidebar-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.sidebar-tags a {
    display: inline-block;
    padding: 0.3rem 0.75rem;
    background: var(--milk-bg);
    color: var(--milk-text-color);
    font-size: 0.8rem;
    border-radius: 20px;
    text-decoration: none;
    border: 1px solid var(--features-card-border);
    transition: all 0.2s;
}

.sidebar-tags a:hover {
    background: var(--green-primary);
    color: white;
    border-color: var(--green-primary);
}

.sidebar-cta p {
    font-size: 0.9rem;
    color: var(--milk-text-color);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.sidebar-subscribe {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sidebar-subscribe input {
    padding: 0.6rem 1rem;
    border: 1px solid var(--features-card-border);
    border-radius: 8px;
    font-size: 0.9rem;
    font-family: 'Nunito Sans', sans-serif;
    outline: none;
    background: transparent;
    color: var(--milk-text-color);
}

.sidebar-subscribe input:focus {
    border-color: var(--green-primary);
}

.sidebar-subscribe button {
    padding: 0.6rem 1rem;
    background: var(--green-primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 700;
    font-family: 'Nunito Sans', sans-serif;
    cursor: pointer;
    transition: background 0.2s;
}

.sidebar-subscribe button:hover {
    background: var(--green-dark);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        position: static;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
    }

    .article-sidebar .sidebar-widget {
        margin-bottom: 0;
    }
}

@media (max-width: 768px) {
    .article-hero {
        height: 500px;
    }

    .article-card {
        padding: 1.5rem;
        border-radius: 12px;
    }

    .article-header h1 {
        font-size: 1.8rem;
    }

    .article-meta {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }

    .article-sidebar {
        grid-template-columns: 1fr;
    }

    .article-body h2 {
        font-size: 1.5rem;
    }

    .article-lead {
        font-size: 1.05rem;
    }

    .article-blockquote {
        padding: 1.5rem;
    }

    .article-blockquote p {
        font-size: 1rem;
    }

    .article-tags {
        margin-top: 2rem;
        padding-top: 1.5rem;
    }

    .article-share {
        flex-wrap: wrap;
    }

    .sidebar-recent li a img {
        width: 60px;
        height: 60px;
    }
}

@media (max-width: 480px) {
    .article-hero {
        height: 400px;
    }

    .article-card {
        padding: 1rem;
        border-radius: 8px;
    }

    .article-header h1 {
        font-size: 1.5rem;
    }

    .article-section {
        padding: 2rem 0;
    }

    .article-body {
        font-size: 0.95rem;
    }

    .article-lead {
        font-size: 1rem;
    }

    .article-body h2 {
        font-size: 1.3rem;
    }

    .article-figure {
        margin: 1.5rem 0;
    }

    .article-blockquote {
        padding: 1rem;
    }

    .article-tag {
        padding: 0.25rem 0.75rem;
        font-size: 0.75rem;
    }

    .article-share-link {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
    }

    .sidebar-widget {
        padding: 1rem;
    }

    .sidebar-widget-title {
        font-size: 1rem;
    }
}