:root {
    --bg: #f6f1e8;
    --bg-soft: #efe5d5;
    --paper: rgba(255, 252, 247, 0.82);
    --paper-strong: #fffaf2;
    --ink: #23313a;
    --ink-soft: #55646d;
    --line: rgba(35, 49, 58, 0.14);
    --accent: #7a4c2f;
    --accent-soft: #d8c1ab;
    --olive: #8f9b8f;
    --shadow: 0 24px 50px rgba(58, 45, 31, 0.1);
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
}

body {
    margin: 0;
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(143, 155, 143, 0.16), transparent 24%),
        radial-gradient(circle at top right, rgba(122, 76, 47, 0.12), transparent 18%),
        linear-gradient(180deg, #f7f2ea 0%, #f2e9db 100%);
    font-family: "IBM Plex Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.75;
}

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

p,
ul,
dl {
    margin: 0;
}

.page-shell {
    width: min(1160px, calc(100% - 32px));
    margin: 24px auto;
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 28px;
    background: linear-gradient(180deg, rgba(255, 250, 242, 0.9), rgba(255, 250, 242, 0.72));
    box-shadow: var(--shadow);
    backdrop-filter: blur(6px);
}

.site-header,
.site-footer,
.hero-grid,
.article-layout,
.section-heading,
.footer-links,
.brand-block,
.site-nav,
.chip-row {
    display: flex;
}

.site-header,
.site-footer {
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.site-header {
    padding-bottom: 26px;
    border-bottom: 1px solid var(--line);
}

.brand-block {
    align-items: center;
    gap: 16px;
}

.brand-mark {
    width: 56px;
    height: 56px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 18px;
    border: 1px solid rgba(122, 76, 47, 0.2);
    background: linear-gradient(135deg, #f3e5cf, #e7d1bc);
    font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--accent);
}

.brand-eyebrow,
.section-label,
.panel-kicker,
.meta-line,
.archive-year {
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 12px;
}

.brand-title {
    display: inline-block;
    font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
    font-size: 26px;
    font-weight: 700;
}

.site-nav {
    flex-wrap: wrap;
    gap: 10px;
}

.site-nav a {
    padding: 10px 16px;
    border-radius: 999px;
    color: var(--ink-soft);
    transition: background-color 0.2s ease, color 0.2s ease;
}

.site-nav a:hover,
.site-nav a.is-active {
    color: var(--ink);
    background: rgba(122, 76, 47, 0.08);
}

main {
    padding-top: 30px;
}

.hero-grid {
    gap: 26px;
    align-items: stretch;
}

.hero-copy,
.hero-panel,
.article-card,
.side-card,
.feature-card,
.topic-card,
.detail-card,
.archive-card {
    border: 1px solid var(--line);
    background: var(--paper);
    border-radius: 24px;
    box-shadow: 0 14px 30px rgba(61, 43, 23, 0.06);
}

.hero-copy {
    flex: 1.35;
    padding: 38px;
    min-height: 360px;
    background:
        linear-gradient(135deg, rgba(239, 229, 213, 0.66), rgba(255, 250, 242, 0.74)),
        var(--paper);
}

.hero-copy h1,
.page-intro h1,
.section-heading h2,
.hero-panel h2,
.article-card h2,
.side-card h2,
.feature-card h3,
.topic-card h3,
.detail-card h3 {
    font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
    font-weight: 700;
    line-height: 1.28;
    margin: 0;
}

.hero-copy h1 {
    margin-top: 14px;
    font-size: clamp(2.25rem, 3.8vw, 4.2rem);
    max-width: 10em;
}

.lead {
    margin-top: 18px;
    max-width: 52rem;
    color: var(--ink-soft);
    font-size: 1.08rem;
}

.chip-row {
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.chip-row span {
    padding: 10px 14px;
    border-radius: 999px;
    border: 1px solid rgba(122, 76, 47, 0.16);
    background: rgba(255, 252, 247, 0.7);
    color: var(--ink-soft);
    font-size: 14px;
}

.hero-panel {
    flex: 0.9;
    padding: 30px;
    background: linear-gradient(180deg, rgba(231, 220, 201, 0.42), rgba(255, 250, 242, 0.82));
}

.hero-panel h2 {
    margin-top: 12px;
    font-size: 2rem;
}

.info-list {
    display: grid;
    gap: 18px;
    margin-top: 26px;
}

.info-list.compact {
    margin-top: 18px;
    gap: 14px;
}

.info-list div {
    padding-bottom: 16px;
    border-bottom: 1px dashed rgba(35, 49, 58, 0.14);
}

.info-list div:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}

.info-list dt {
    color: var(--ink);
    font-weight: 600;
}

.info-list dd {
    margin: 6px 0 0;
    color: var(--ink-soft);
}

.content-section {
    margin-top: 28px;
}

.section-heading {
    align-items: end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.section-heading h2 {
    font-size: clamp(1.5rem, 2vw, 2.2rem);
}

.card-grid,
.archive-grid {
    display: grid;
    gap: 18px;
}

.card-grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.feature-card,
.topic-card,
.detail-card,
.archive-card {
    padding: 24px;
}

.feature-card h3,
.topic-card h3,
.detail-card h3 {
    margin-top: 10px;
    font-size: 1.45rem;
}

.feature-card p:last-child,
.topic-card p,
.detail-card p {
    margin-top: 12px;
    color: var(--ink-soft);
}

.card-link {
    color: inherit;
    text-decoration: none;
}

.card-link:hover {
    color: var(--accent);
}

.read-more {
    margin-top: 16px;
    font-size: 14px;
    font-weight: 600;
}

.read-more a {
    color: var(--accent);
}

.inner-page {
    display: grid;
    gap: 28px;
}

.page-intro {
    padding: 10px 2px 0;
}

.page-intro h1 {
    margin-top: 12px;
    font-size: clamp(2rem, 3vw, 3.4rem);
    max-width: 11em;
}

.article-hero {
    padding-bottom: 8px;
}

.article-meta {
    margin-top: 14px;
    color: var(--ink-soft);
    font-size: 14px;
}

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.85fr);
    gap: 18px;
}

.article-card,
.side-card {
    padding: 28px;
}

.article-card h2,
.side-card h2 {
    font-size: 1.7rem;
}

.article-card p + p,
.article-card p + ul,
.article-card ul + p,
.side-card ul,
.side-card dl {
    margin-top: 14px;
}

.plain-list {
    padding-left: 18px;
    color: var(--ink-soft);
}

.single-column {
    padding: 24px 28px;
}

.prose-card h2 + p {
    margin-top: 14px;
}

.prose-card p + h2 {
    margin-top: 24px;
}

.archive-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.archive-card .plain-list {
    margin-top: 14px;
}

.site-footer {
    margin-top: 34px;
    padding-top: 22px;
    border-top: 1px solid var(--line);
    color: var(--ink-soft);
}

.footer-links {
    flex-wrap: wrap;
    gap: 16px;
    justify-content: flex-end;
}

.footer-links a {
    color: var(--accent);
}

@media (max-width: 980px) {
    .hero-grid,
    .article-layout,
    .card-grid-3,
    .card-grid-2,
    .archive-grid {
        grid-template-columns: 1fr;
        display: grid;
    }

    .site-header,
    .site-footer {
        align-items: flex-start;
        flex-direction: column;
    }

    .footer-links {
        justify-content: flex-start;
    }
}

@media (max-width: 720px) {
    .page-shell {
        width: min(100% - 20px, 100%);
        margin: 10px auto;
        padding: 20px;
        border-radius: 22px;
    }

    .brand-title {
        font-size: 22px;
    }

    .hero-copy,
    .hero-panel,
    .article-card,
    .side-card,
    .feature-card,
    .topic-card,
    .detail-card,
    .archive-card {
        padding: 22px;
        border-radius: 20px;
    }

    .hero-copy h1,
    .page-intro h1 {
        max-width: none;
    }
}