html,
body {
    margin: 0;
    padding: 0;
    width: 100%;
    background-color: var(--color-bg);
    color: var(--color-text);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    font-family: "TsangerJinKai02", "STKaiti", "KaiTi", serif;
}

a {
    color: var(--color-text);
    text-decoration: none;
}

a:hover {
    color: var(--color-link);
}

.page-shell {
    box-sizing: border-box;
    background-color: var(--color-bg);
    width: 100%;
    max-width: 980px;
    margin: 0 auto 34px;
    padding: 8px 20px 30px;
}

@media screen and (max-width: 1000px) {
    .page-shell {
        max-width: 920px;
        padding-left: 16px;
        padding-right: 16px;
    }
}

.title-area {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 28px;
}

.title {
    color: var(--color-text-heading);
    font-size: 42px;
    font-weight: 600;
    text-align: center;
    font-family: "TsangerJinKai02", "STKaiti", "KaiTi", serif;
    line-height: 1.2;
    letter-spacing: 1px;
    padding: 0 0 12px;
    position: relative;
}

.title::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 76px;
    height: 2px;
    transform: translateX(-50%);
    background: var(--color-divider);
}

.topic-post-groups,
.archive-page {
    width: 100%;
}

.topic-post-group {
    margin-top: 34px;
}

.topic-post-group:first-child {
    margin-top: 0;
}

.topic-post-title {
    margin: 0 0 10px;
    font-size: 32px;
    line-height: 1.25;
    color: var(--color-text-title);
}

.topic-post-summary {
    margin: 0 0 12px;
    color: var(--color-text-soft);
    font-size: 18px;
    line-height: 1.75;
}

.topic-post-list,
.archive-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.topic-post-list li,
.archive-item {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 14px;
    padding: 14px 0;
    border-bottom: 1px dotted var(--color-border-dotted);
}

.topic-post-list li a,
.archive-item a {
    flex: 1;
    min-width: 0;
    font-size: 21px;
    line-height: 1.55;
    color: var(--color-text-heading);
}

.topic-post-list li time,
.archive-item time {
    color: var(--color-text-soft);
    font-size: 15px;
    white-space: nowrap;
    flex: 0 0 96px;
    width: 96px;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.archive-year-group {
    margin-top: 8px;
    border-top: 1px solid var(--color-border-subtle);
    padding-top: 6px;
}

.archive-year-group:first-child {
    margin-top: 0;
    border-top: 0;
    padding-top: 0;
}

.archive-year-summary {
    list-style: none;
    cursor: pointer;
}

.archive-year-summary::-webkit-details-marker {
    display: none;
}

.archive-year-summary::marker {
    content: "";
}

.archive-year {
    margin: 0;
    font-size: 30px;
    line-height: 1.25;
    color: var(--color-text-title);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.archive-year::after {
    content: "▾";
    font-size: 14px;
    color: var(--color-text-faint);
    transform-origin: center;
    transition: transform .18s ease;
}

.archive-year-group:not([open]) .archive-year::after {
    transform: rotate(-90deg);
}

html[lang^="en"] .title {
    letter-spacing: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}