:root {
    --bg: #f4f8fc;
    --bg-soft: #eef4fb;
    --surface: #ffffff;
    --surface-soft: #f8fbff;
    --line: #d7e4f2;
    --line-strong: #b8cfe8;
    --text: #1f2d3d;
    --text-soft: #5e7288;
    --text-dim: #8296aa;
    --primary: #2f7de1;
    --primary-strong: #175fc2;
    --primary-soft: #eaf2fe;
    --shadow: 0 16px 40px rgba(31, 60, 96, 0.08);
    --radius-lg: 24px;
    --radius-md: 18px;
    --radius-sm: 12px;
    --container: 1120px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(47, 125, 225, 0.08), transparent 28%),
        linear-gradient(180deg, #f8fbff 0%, #f4f8fc 100%);
    font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.7;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(46, 99, 178, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(46, 99, 178, 0.04) 1px, transparent 1px);
    background-size: 36px 36px;
    mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.18), transparent 65%);
}

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

img {
    max-width: 100%;
    display: block;
}

.page-backdrop {
    position: fixed;
    top: -120px;
    right: -120px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(61, 131, 232, 0.16), transparent 72%);
    pointer-events: none;
    filter: blur(6px);
}

.container {
    width: min(calc(100% - 32px), var(--container));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(248, 251, 255, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(184, 207, 232, 0.6);
}

.header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    min-height: 78px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 1.1rem;
    color: #ffffff;
    background: linear-gradient(135deg, #4e9cf6, #2f7de1);
    box-shadow: 0 10px 24px rgba(47, 125, 225, 0.2);
}

.brand-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.brand-text strong {
    font-size: 1rem;
    letter-spacing: 0.03em;
}

.brand-text small,
.eyebrow {
    color: var(--text-dim);
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

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

.site-nav a,
.filter-chip,
.pagination a,
.pagination span {
    padding: 2px 10px;
  /* padding: 10px 16px; border-radius: 999px; */
    border: 1px solid transparent;
    transition: 0.2s ease;
}

.site-nav a {
    color: var(--text-soft);
}

.site-nav a:hover,
.site-nav a.active {
    color: var(--primary);
    background: #ffffff;
    border-color: var(--line);
}

.main-content {
    position: relative;
    z-index: 1;
}

.hero-section,
.page-banner {
    padding: 56px 0 24px;
}

.hero-grid,
.about-grid,
.detail-layout {
    display: grid;
    gap: 24px;
}

.hero-grid {
    /*grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.9fr);*/
    /*align-items: stretch;*/
}

.hero-copy,
.hero-panel,
.content-card,
.empty-card,
.error-box,
.detail-article,
.side-panel,
.about-panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.hero-copy,
.hero-panel,
.content-card,
.detail-article,
.side-panel,
.about-panel,
.empty-card,
.error-box {
    padding: 28px;
}

.hero-copy h1,
.page-banner h1,
.section-heading h2,
.detail-banner h1 {
    margin: 10px 0 14px;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.hero-copy h1 {
    max-width: 11ch;
    font-size: clamp(2.3rem, 4vw, 3.9rem);
}

.page-banner h1,
.detail-banner h1 {
    font-size: clamp(2rem, 3.6vw, 3rem);
}

.hero-copy p,
.page-banner p,
.content-card p,
.detail-content p,
.detail-content li,
.site-footer p,
.mood-list-content p {
    color: var(--text-soft);
}

.hero-actions,
.filter-row,
.footer-links,
.detail-meta,
.card-meta,
.post-card-meta,
.section-heading,
.category-topline,
.footer-grid,
.panel-heading,
.list-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}

.hero-actions {
    margin-top: 24px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 18px;
    border-radius: 999px;
    border: 1px solid var(--line-strong);
    transition: 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    color: #ffffff;
    background: linear-gradient(135deg, var(--primary), var(--primary-strong));
    box-shadow: 0 12px 28px rgba(47, 125, 225, 0.18);
}

.btn-secondary {
    color: var(--primary);
    background: var(--primary-soft);
}

.btn-block {
    width: 100%;
}

.panel-heading {
    margin-bottom: 18px;
    align-items: flex-start;
}

.panel-heading h2 {
    margin: 8px 0 0;
    font-size: 1.15rem;
}

.stats-grid {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.compact-stats .stat-card {
    padding: 18px 20px;
}

.stat-card {
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
}

.stat-card span,
.card-meta,
.post-card-meta,
.detail-meta,
.list-summary,
.mood-list-date span {
    color: var(--text-dim);
    font-size: 0.94rem;
}

.stat-card strong {
    display: block;
    margin: 8px 0 4px;
    font-size: 2rem;
    line-height: 1;
    color: var(--text);
}

.section,
.site-footer {
    padding: 20px 0 28px;
}

.section-tight {
    padding-top: 0;
    padding-bottom: 0;
}

.section-heading {
    margin-bottom: 18px;
}

.section-heading h2 {
    margin: 8px 0 0;
    font-size: 1.6rem;
}

.text-link {
    color: var(--primary);
}

.text-link:hover {
    color: var(--primary-strong);
}

.category-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.category-pill {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--text-soft);
    box-shadow: 0 8px 22px rgba(31, 60, 96, 0.04);
}

.category-pill:hover {
    border-color: var(--line-strong);
    color: var(--primary);
}

.category-pill-name {
    font-weight: 600;
    color: var(--text);
}

.category-pill small {
    color: var(--text-dim);
}

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

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

.category-overview-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.content-card h2,
.content-card h3,
.side-panel h2,
.site-footer h3 {
    margin: 0 0 10px;
    line-height: 1.3;
}

.content-card h2 a:hover,
.content-card h3 a:hover,
.post-list-card h2 a:hover,
.post-list-card h3 a:hover,
.related-item:hover strong {
    color: var(--primary);
}

.tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    border-radius: 999px;
    background: var(--primary-soft);
    border: 1px solid var(--tag-color, var(--line-strong));
    color: var(--primary);
    font-size: 0.84rem;
    white-space: nowrap;
}

.post-card-meta {
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.card-meta,
.detail-meta {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
    flex-wrap: wrap;
}

.feature-card,
.category-card,
.category-page-card {
    height: 100%;
}

.category-card {
    border-top: 3px solid var(--accent-color, var(--primary));
}

.post-list {
    display: grid;
    gap: 16px;
}

.post-list-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 180px;
    gap: 20px;
    padding: 24px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.post-list-card h2,
.post-list-card h3 {
    margin: 0 0 10px;
    line-height: 1.3;
}

.post-list-main p {
    margin: 0;
}

.post-list-side {
    display: grid;
    align-content: start;
    justify-items: end;
    gap: 10px;
    color: var(--text-dim);
    text-align: right;
    font-size: 0.95rem;
}

.mood-preview-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.mood-preview-card {
    padding: 22px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
}

.mood-preview-card h3 {
    margin: 12px 0 10px;
    line-height: 1.35;
}

.mood-preview-card p {
    margin: 0;
    color: var(--text-soft);
}

.mood-preview-date,
.mood-date {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 64px;
    min-height: 34px;
    padding: 0 12px;
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.filter-row {
    flex-wrap: wrap;
}

.filter-chip {
    background: #ffffff;
    border-color: var(--line);
    color: var(--text-soft);
}

.filter-chip.active,
.filter-chip:hover,
.pagination a:hover,
.pagination .active {
    color: var(--primary);
    background: var(--primary-soft);
    border-color: var(--line-strong);
}

.list-summary {
    margin-bottom: 16px;
    color: var(--text-dim);
    flex-wrap: wrap;
}

.pagination {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 24px;
}

.pagination a,
.pagination span {
    background: #ffffff;
    border-color: var(--line);
    color: var(--text-soft);
}

.pagination-gap {
    border-color: transparent;
    background: transparent;
}

.mood-list {
    display: grid;
    gap: 16px;
}

.mood-list-item {
    display: grid;
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 18px;
    padding: 22px 24px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.mood-list-date {
    display: grid;
    justify-items: start;
    align-content: start;
    gap: 6px;
}

.mood-list-date strong {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 72px;
    min-height: 40px;
    padding: 0 14px;
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--primary);
    font-size: 1rem;
}

.mood-list-content h2 {
    margin: 0 0 10px;
    line-height: 1.35;
}

.timeline,
.timeline-item,
.timeline-date,
.timeline-card {
    display: block;
}

.detail-layout,
.about-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.8fr);
}

.detail-sidebar,
.about-sidebar {
    display: grid;
    gap: 16px;
    align-self: start;
}

.related-list {
    display: grid;
    gap: 12px;
}

.related-item {
    display: grid;
    gap: 8px;
    padding: 16px;
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
}

.related-item small {
    color: var(--text-dim);
}

.detail-content {
    color: var(--text);
}

.detail-content h2,
.detail-content h3 {
    margin: 24px 0 12px;
    color: var(--text);
}

.detail-content ul {
    padding-left: 20px;
}

.detail-content blockquote {
    margin: 18px 0;
    padding: 14px 16px;
    background: var(--primary-soft);
    border-left: 3px solid var(--primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text);
}

.mood-content p:last-child,
.detail-content p:last-child {
    margin-bottom: 0;
}

.empty-card h2 {
    margin-top: 0;
}

.site-footer {
    margin-top: 32px;
    background: #f7fbff;
    border-top: 1px solid var(--line);
}

.footer-grid {
    align-items: start;
    flex-wrap: wrap;
}

.footer-grid > div {
    flex: 1;
    min-width: 220px;
}

.footer-links {
    flex-wrap: wrap;
}

.footer-links a,
.footer-note {
    color: var(--text-soft);
}

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

@media (max-width: 1024px) {
    .hero-grid,
    .detail-layout,
    .about-grid,
    .feature-grid,
    .category-overview-grid,
    .mood-preview-grid {
        grid-template-columns: 1fr;
    }

    .post-list-card {
        grid-template-columns: 1fr;
    }

    .post-list-side {
        justify-items: start;
        text-align: left;
    }
}

@media (max-width: 768px) {
    .site-header {
        position: static;
    }

    .header-row,
    .section-heading,
    .category-topline,
    .footer-grid,
    .detail-meta,
    .card-meta,
    .panel-heading,
    .list-summary {
        flex-direction: column;
        align-items: flex-start;
    }

    .site-nav {
        width: 100%;
        overflow-x: auto;
        padding-bottom: 4px;
        flex-wrap: nowrap;
    }

    .hero-section,
    .page-banner {
        padding-top: 40px;
    }

    .hero-copy,
    .hero-panel,
    .content-card,
    .detail-article,
    .side-panel,
    .about-panel,
    .empty-card,
    .error-box,
    .post-list-card,
    .mood-list-item,
    .mood-preview-card {
        padding: 20px;
    }

    .mood-list-item {
        grid-template-columns: 1fr;
    }
}