.preview-article {
    max-width: 900px;
    margin: 24px auto 32px;
    border: 1px solid rgba(219, 227, 239, 0.9);
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 18px 40px rgba(36, 50, 74, 0.08);
    padding: 28px 30px 36px;
}

.preview-category-line,
.preview-chip {
    align-items: center;
    border-radius: 999px;
    font-size: 13px;
}

.preview-category-line {
    display: inline-flex;
    gap: 8px;
    padding: 6px 14px;
    background: #edf4ff;
    color: #1f6feb;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.preview-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin: 18px 0;
}

.preview-chip {
    display: inline-flex;
    min-height: 34px;
    padding: 0 14px;
    background: #f6f9fc;
    color: #607089;
    border: 1px solid #e4ebf5;
}

.preview-title {
    margin: 18px 0 16px;
    color: #24324a;
    font-size: 34px;
    line-height: 1.35;
    font-weight: 800;
    word-break: break-word;
}

.preview-content {
    color: #2b3850;
    font-size: 16px;
    line-height: 1.9;
    word-break: break-word;
}

.preview-article hr {
    margin: 0 0 24px;
    border-color: #e7edf6;
    opacity: 1;
}

.preview-content > :first-child {
    margin-top: 0;
}

.preview-content > :last-child {
    margin-bottom: 0;
}

.preview-content h1,
.preview-content h2,
.preview-content h3,
.preview-content h4,
.preview-content h5,
.preview-content h6 {
    color: #24324a;
    font-weight: 700;
    line-height: 1.45;
    margin: 1.4em 0 0.65em;
}

.preview-content blockquote,
.preview-content figure,
.preview-content ol,
.preview-content p,
.preview-content pre,
.preview-content table,
.preview-content ul {
    margin: 0 0 1.1em;
}

.preview-content ol,
.preview-content ul {
    padding-left: 1.5em;
}

.preview-content .ql-align-center {
    text-align: center;
}

.preview-content .ql-align-right {
    text-align: right;
}

.preview-content .ql-align-justify {
    text-align: justify;
}

.preview-content blockquote {
    margin-left: 0;
    padding: 14px 18px;
    border-left: 4px solid #1f6feb;
    background: #f7fbff;
    color: #52627b;
    border-radius: 0 12px 12px 0;
}

.preview-content .ql-code-block-container,
.preview-content pre {
    background: #0f1724;
    color: #e5eefc;
    padding: 16px 18px;
    overflow: auto;
    line-height: 1.7;
}

.preview-content pre {
    border-radius: 14px;
}

.preview-content .ql-code-block-container {
    margin: 0 0 1.1em;
    border-radius: 14px;
    font-family: Consolas, "Courier New", monospace;
    font-size: 14px;
}

.preview-content .ql-code-block {
    white-space: pre-wrap;
    word-break: break-word;
}

.preview-content .ql-code-block + .ql-code-block {
    margin-top: 0.35em;
}

.preview-content code {
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.92em;
}

.preview-content :not(pre) > code {
    padding: 2px 6px;
    border-radius: 6px;
    background: #f3f6fb;
    color: #b42318;
}

.preview-content figure {
    max-width: 100%;
}

.preview-content figcaption {
    color: #73839b;
    font-size: 13px;
    text-align: center;
}

.preview-content img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 14px auto;
    border-radius: 14px;
}

.preview-content iframe,
.preview-content video {
    display: block;
    max-width: 100%;
    aspect-ratio: 16/9;
    margin: 14px auto;
    border-radius: 14px;
}

.preview-content table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
    margin: 12px 0;
}

.preview-content table td,
.preview-content table th {
    border: 1px solid #d7dfeb;
    padding: 10px 12px;
    vertical-align: top;
}

.preview-content table th {
    background: #f6f9fd;
    font-weight: 700;
}

.preview-content table ol,
.preview-content table p,
.preview-content table ul {
    margin: 0;
}

.preview-content .ql-font-microsoft-yahei,
.ql-font-microsoft-yahei {
    font-family: "Microsoft YaHei", sans-serif;
}

.preview-content .ql-font-simsun,
.ql-font-simsun {
    font-family: SimSun, serif;
}

.preview-content .ql-font-kaiti,
.ql-font-kaiti {
    font-family: KaiTi, serif;
}

.preview-content .ql-font-simhei,
.ql-font-simhei {
    font-family: SimHei, "黑体", sans-serif;
}

.preview-content .ql-font-fangsong,
.ql-font-fangsong {
    font-family: FangSong, "仿宋", serif;
}

.preview-content .ql-font-arial,
.ql-font-arial {
    font-family: Arial, sans-serif;
}

.preview-content .ql-font-georgia,
.ql-font-georgia {
    font-family: Georgia, serif;
}

.preview-content a.ql-attachment-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px 3px 8px;
    border-radius: 6px;
    background: #edf4ff;
    border: 1px solid #c2d9ff;
    color: #1f6feb;
    font-size: 0.92em;
    text-decoration: none;
    word-break: break-all;
    transition: background 0.15s;
}

.preview-content a.ql-attachment-link:hover {
    background: #dbeaff;
    text-decoration: none;
}

.preview-content a.ql-attachment-link::before {
    content: "📎";
    font-style: normal;
    flex-shrink: 0;
}

@media (max-width: 767px) {
    .preview-article {
        margin: 14px 10px 20px;
        padding: 22px 16px 24px;
    }
}