:root {
    --background: #eeeeee;
    --surface: #fffdf8;
    --text: #263648;
    --muted: #6f8193;
    --line: #d8e5f0;
    --accent: #3d79ad;
    --accent-soft: #e8f3fb;
    --code: #172433;
    --serif: "Avenir Next", "Nunito", "Noto Sans SC", "Microsoft YaHei", ui-sans-serif, sans-serif;
    --sans: "Avenir Next", "Nunito", "Noto Sans SC", "Microsoft YaHei", ui-sans-serif, system-ui, sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    margin: 0;
    color: var(--text);
    background:
        radial-gradient(circle at 92% 24%, rgba(167, 211, 240, 0.13), transparent 25rem),
        var(--background);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    border-bottom: 1px solid rgba(216, 229, 240, 0.9);
    background: #eeeeee;
    backdrop-filter: blur(14px);
}

.nav-wrap,
.site-footer {
    width: min(100% - 48px, 1120px);
    margin-inline: auto;
}

.site-main {
    width: min(100% - 48px, 1180px);
    min-height: calc(100vh - 160px);
    margin-inline: auto;
}

.nav-wrap {
    display: flex;
    min-height: 68px;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
}

.brand {
    font-family: var(--serif);
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

nav a {
    position: relative;
    color: var(--muted);
    font-size: 0.9rem;
    font-weight: 550;
}

nav a:hover,
nav a[aria-current="page"] {
    color: var(--text);
}

nav a[aria-current="page"]::after {
    position: absolute;
    right: 0;
    bottom: -8px;
    left: 0;
    height: 2px;
    border-radius: 2px;
    background: var(--accent);
    content: "";
}

.hero {
    padding: 54px 0 38px;
    border-bottom: 1px solid var(--line);
}

.archive-heading {
    padding: 44px 0 26px;
    border-bottom: 1px solid var(--line);
}

.archive-heading h1 {
    margin: 0;
    font-family: var(--serif);
    font-size: clamp(1.9rem, 4vw, 2.7rem);
    line-height: 1.2;
}

.archive-heading > p:last-child {
    margin: 14px 0 0;
    color: var(--muted);
}

.eyebrow {
    margin: 0 0 20px;
    color: var(--accent);
    font-size: 0.74rem;
    font-weight: 750;
    letter-spacing: 0.18em;
}

.hero h1 {
    max-width: 780px;
    margin: 0;
    font-family: var(--serif);
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 600;
    letter-spacing: -0.045em;
    line-height: 1.12;
}

.hero > p:last-child {
    max-width: 640px;
    margin: 28px 0 0;
    color: var(--muted);
    font-size: 1.02rem;
}

.post-list {
    padding-bottom: 48px;
}

.post-card {
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 10px 34px;
    align-items: start;
    padding: 24px 2px;
    border-bottom: 1px solid var(--line);
    scroll-margin-top: 84px;
}

.post-card > time {
    grid-row: 1 / span 2;
    padding-top: 7px;
    color: var(--muted);
    font-size: 0.8rem;
    letter-spacing: 0.025em;
}

.post-card h2 {
    margin: 0;
    font-family: var(--serif);
    font-size: clamp(1.45rem, 3vw, 2rem);
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 1.35;
}

.post-card h2 a {
    background-image: linear-gradient(var(--accent), var(--accent));
    background-position: 0 100%;
    background-repeat: no-repeat;
    background-size: 0 1px;
    transition: background-size 180ms ease;
}

.post-card h2 a:hover {
    background-size: 100% 1px;
}

.post-card > p {
    grid-column: 2;
    max-width: 760px;
    margin: 2px 0 0;
    color: var(--muted);
    font-size: 0.94rem;
}

.article-shell {
    width: min(100%, 1080px);
    margin: 0 auto;
    padding: 24px 0 90px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 36px;
    color: var(--muted);
    font-size: 0.95rem;
}

.article-meta a {
    color: var(--accent);
    font-weight: 650;
}

.header-navigator {
    display: none;
}

.markdown-body {
    padding: 20px 50px;
    color: #3c4858;
    border-radius: 10px;
    background: #fff;
    box-shadow: rgba(17, 17, 26, 0.1) 0 4px 16px, rgba(17, 17, 26, 0.05) 0 8px 32px;
    font-family: Monaco, Consolas, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
    font-size: 16px;
    letter-spacing: 0.02em;
    line-height: 1.5;
    word-wrap: break-word;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
    margin-top: 24px;
    margin-bottom: 16px;
    color: #000;
    font-weight: 600;
    line-height: 1.25;
}

.markdown-body h1 {
    margin: 0.67em 0;
    padding-bottom: 0.3em;
    border-bottom: 1px solid #eaecef;
    font-size: 2em;
}

.markdown-body h2 {
    padding-bottom: 0.35em;
    border-bottom: 1px solid #eaecef;
}

.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body blockquote,
.markdown-body details,
.markdown-body dl,
.markdown-body table {
    margin-top: 0;
    margin-bottom: 16px;
}

.markdown-body ol {
    margin-top: 0;
    margin-bottom: 8px;
    padding-left: 2.3em;
}

.markdown-body ul {
    margin-top: 0;
    margin-bottom: 8px;
    padding-left: 1.5em;
}

.markdown-body li + li {
    margin-top: 0.25em;
}

.markdown-body a {
    color: #0366d6;
    transition: color 0.2s ease;
}

.markdown-body a:hover {
    color: #30a9de;
    text-decoration: underline;
}

.markdown-body blockquote {
    padding: 1px 1em;
    border-left: 0.25em solid #dfe2e5;
    border-radius: 3px;
    color: #6a737d;
    background: transparent;
    margin-left: 0px;
}

.markdown-body blockquote div {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    margin-top: 5px;
    margin-bottom: 5px;
}

.markdown-body blockquote p {
    margin-top: 5px;
    margin-right: 0;
    margin-bottom: 5px;
    margin-left: 5px;
}

.markdown-body img {
    display: block;
    max-width: 80%;
    max-height: 500px;
    margin: 0 auto;
    border-radius: 5px;
    box-shadow: rgba(100, 100, 111, 0.2) 0 7px 29px 0;
}

.markdown-body hr {
    height: 0;
    margin: 25px 0;
    border: 0;
    border-bottom: 2px solid #dfe2e5;
    background: transparent;
}

.markdown-body table {
    max-width: 100%;
    border-spacing: 0;
    border-collapse: collapse;
    overflow-x: auto;
}

.markdown-body th,
.markdown-body td {
    padding: 6px 13px;
    border: 1px solid #dfe2e5;
}

.markdown-body th {
    font-weight: 600;
    white-space: nowrap;
}

.markdown-body tr {
    border-top: 1px solid #c6cbd1;
    background: #fff;
}

.markdown-body tr:nth-child(2n) {
    background: #f6f8fa;
}

.markdown-body code,
.markdown-body kbd,
.markdown-body pre {
    font-family: Monaco, Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 15px;
}

.markdown-body code {
    padding: 0.2em 0.4em;
    margin: 0;
    border-radius: 3px;
    background: rgba(27, 31, 35, 0.05);
    font-size: 95%;
}

.markdown-body pre {
    position: relative;
    margin-top: 5px;
    margin-bottom: 16px;
    padding: 16px;
    overflow: auto;
    border-radius: 3px;
    background: #0b0b0b;
    box-shadow: rgba(17, 17, 26, 0.1) 0 0 16px;
    color: #c1cccc;
    font-size: 85%;
    line-height: 1.45;
    word-wrap: normal;
}

.markdown-body pre code {
    max-width: 100%;
    padding: 0;
    margin: 0;
    overflow: visible;
    border: 0;
    background: transparent;
    font-size: 100%;
    line-height: inherit;
    white-space: pre;
    word-break: normal;
    word-wrap: normal;
}

.markdown-body strong {
    font-weight: 600;
}

.markdown-body ol ul,
.markdown-body ul ul {
    margin-top: 10px;
    padding-left: 1em;
}

.markdown-body ol ol,
.markdown-body ul ol {
    margin-top: 10px;
    padding-left: 1.75em;
}

.markdown-body li {
    word-wrap: break-word;
}

.markdown-body li > p {
    margin-top: 10px;
}

.markdown-body kbd {
    display: inline-block;
    padding: 5px;
    border: 1px solid #d1d5da;
    border-bottom-color: #c6cbd1;
    border-radius: 3px;
    color: #444d56;
    background: #fafbfc;
    box-shadow: inset 0 -1px 0 #c6cbd1;
    font-size: 11px;
    line-height: 10px;
    vertical-align: middle;
}

.site-footer {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding: 28px 0 40px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 0.76rem;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 6px 0 64px;
}

.pagination a {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 50%;
    color: var(--muted);
    background: var(--surface);
    font-size: 0.86rem;
    transition: border-color 160ms ease, color 160ms ease, background 160ms ease;
}

.pagination a:hover,
.pagination a[aria-current="page"] {
    border-color: var(--accent);
    color: #fff;
    background: var(--accent);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    padding: 36px 0 72px;
}

.category-card {
    display: block;
    min-height: 158px;
    padding: 25px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(255, 253, 248, 0.76);
    transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.category-card:hover {
    border-color: #a8c8df;
    box-shadow: 0 12px 28px rgba(61, 121, 173, 0.1);
    transform: translateY(-2px);
}

.category-card h2 {
    margin: 0 0 14px;
    font-size: 1.25rem;
}

.category-card p,
.category-card time {
    display: block;
    margin: 0;
    color: var(--muted);
    font-size: 0.82rem;
}

@media (max-width: 700px) {
    .nav-wrap,
    .site-main,
    .site-footer {
        width: min(100% - 28px, 1180px);
    }

    .nav-wrap {
        min-height: 60px;
    }

    nav {
        gap: 14px;
        overflow-x: auto;
    }

    .hero {
        padding: 42px 0 30px;
    }

    .archive-heading {
        padding: 36px 0 22px;
    }

    .post-card {
        display: block;
        padding: 22px 0;
    }

    .post-card h2 {
        margin-top: 10px;
    }

    .article-shell {
        padding: 48px 0 64px;
    }

    .markdown-body {
        padding: 20px;
        font-size: 16px;
    }

    .markdown-body pre {
        padding: 16px;
        border-radius: 3px;
        font-size: 85%;
    }

    .site-footer {
        display: block;
    }

    .site-footer span {
        display: block;
    }

    .category-grid {
        grid-template-columns: 1fr;
    }
}