:root {
    --bg: #fffdfa;
    --surface: #ffffff;
    --surface-soft: #fff8f0;
    --text: #2e1f12;
    --muted: #776454;
    --border: #ead9c8;
    --brand: #cc7a29;
    --brand-dark: #9e5717;
    --shadow: 0 18px 35px rgba(83, 43, 10, 0.08);
    --page-glow-a: #fff3e4;
    --page-glow-b: #ffe8dc;
    --header-bg: rgba(255, 253, 250, 0.88);
    --header-border: rgba(199, 151, 108, 0.22);
}

* {
    box-sizing: border-box;
}

body.site-body {
    margin: 0;
    color: var(--text);
    font-family: "Inter", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.65;
    background: radial-gradient(circle at 20% 0%, var(--page-glow-a) 0%, rgba(255, 243, 228, 0.3) 35%, transparent 50%),
        radial-gradient(circle at 90% 0%, var(--page-glow-b) 0%, rgba(255, 232, 220, 0.3) 28%, transparent 48%),
        var(--bg);
}

.site-shell {
    width: min(1080px, calc(100% - 2rem));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--header-border);
    background: var(--header-bg);
}

.site-header-inner {
    min-height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.site-brand {
    color: var(--text);
    font-size: 1.15rem;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 0.01em;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.site-nav a {
    text-decoration: none;
    color: var(--muted);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.42rem 0.75rem;
    border-radius: 999px;
    transition: all 0.2s ease;
}

.site-nav a:hover {
    color: var(--text);
    background: #fff3e2;
}

.site-nav .nav-cta {
    color: #fff;
    background: linear-gradient(145deg, var(--brand), #f19642);
    box-shadow: 0 8px 16px rgba(204, 122, 41, 0.22);
}

.site-nav .nav-cta:hover {
    color: #fff;
    background: linear-gradient(145deg, var(--brand-dark), var(--brand));
}

.site-main {
    padding: 2rem 0 2.5rem;
}

.content-panel {
    border: 1px solid var(--border);
    border-radius: 18px;
    background: var(--surface);
    box-shadow: var(--shadow);
    padding: 1.5rem;
}

.home-guide-panel {
    border: 1px solid #f1d3b6;
    border-radius: 24px;
    background: linear-gradient(140deg, #fff7ef 0%, #fff 42%, #fff3e7 100%);
    box-shadow: 0 20px 40px rgba(123, 78, 35, 0.12);
    padding: 2rem;
}

body[data-season="spring"] {
    --bg: #f8fff8;
    --surface: #ffffff;
    --surface-soft: #f5fff6;
    --text: #1f3526;
    --muted: #4f6f58;
    --border: #c8e7d0;
    --brand: #3c9a5f;
    --brand-dark: #2f7a4c;
    --page-glow-a: #d9f7e2;
    --page-glow-b: #f4ffe3;
    --header-bg: rgba(246, 255, 247, 0.9);
    --header-border: rgba(60, 154, 95, 0.25);
}

body[data-season="summer"] {
    --bg: #f3fbff;
    --surface: #ffffff;
    --surface-soft: #edf7ff;
    --text: #153245;
    --muted: #4d6674;
    --border: #c8e2f1;
    --brand: #2d7bb8;
    --brand-dark: #1e6294;
    --page-glow-a: #dff5ff;
    --page-glow-b: #e4f4ff;
    --header-bg: rgba(245, 252, 255, 0.9);
    --header-border: rgba(45, 123, 184, 0.23);
}

body[data-season="autumn"] {
    --bg: #fff9f0;
    --surface: #ffffff;
    --surface-soft: #fff7ec;
    --text: #352514;
    --muted: #7a5b3f;
    --border: #f0d9bc;
    --brand: #c2772c;
    --brand-dark: #92531a;
    --page-glow-a: #ffe8cb;
    --page-glow-b: #ffe2d7;
    --header-bg: rgba(255, 249, 240, 0.9);
    --header-border: rgba(194, 119, 44, 0.24);
}

body[data-season="winter"] {
    --bg: #edf3ff;
    --surface: #ffffff;
    --surface-soft: #f2f6ff;
    --text: #182539;
    --muted: #55647b;
    --border: #ced9f2;
    --brand: #5277d6;
    --brand-dark: #3d5db0;
    --page-glow-a: #d8e4ff;
    --page-glow-b: #e8eefe;
    --header-bg: rgba(238, 244, 255, 0.9);
    --header-border: rgba(82, 119, 214, 0.24);
}

.platform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.85rem;
}

.platform-card {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.9rem;
    background: var(--surface-soft);
}

.platform-card h3 {
    margin: 0 0 0.4rem;
    font-size: 1rem;
}

.platform-card p,
.platform-card li {
    color: var(--muted);
    margin: 0.2rem 0;
    font-size: 0.92rem;
}

.status-line {
    margin-top: 0.8rem;
    font-size: 0.9rem;
    color: var(--muted);
}

.tool-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.6rem;
}

.tool-actions button {
    border: 1px solid var(--border);
    background: var(--surface);
    border-radius: 999px;
    padding: 0.35rem 0.75rem;
    cursor: pointer;
    color: var(--text);
}

.tool-result {
    margin-top: 0.7rem;
    border-left: 3px solid var(--brand);
    padding-left: 0.7rem;
    font-size: 0.93rem;
}

.guide-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin: 0;
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--brand-dark);
}

.guide-kicker::before {
    content: "";
    width: 14px;
    height: 2px;
    background: currentColor;
}

.guide-head h1 {
    margin: 0.7rem 0 0;
    font-size: clamp(1.95rem, 4vw, 2.8rem);
    line-height: 1.18;
}

.guide-head p {
    color: var(--muted);
    max-width: 68ch;
}

.guide-links {
    margin-top: 1.4rem;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.85rem;
}

.guide-link-card {
    text-decoration: none;
    color: inherit;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.95);
    padding: 0.9rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.guide-link-card:hover {
    transform: translateY(-2px);
    border-color: #e2b68d;
    box-shadow: 0 12px 22px rgba(123, 78, 35, 0.12);
}

.guide-link-card strong {
    display: block;
    font-size: 0.98rem;
}

.guide-link-card span {
    color: var(--muted);
    font-size: 0.84rem;
}

.home-columns {
    margin-top: 1rem;
    display: grid;
    grid-template-columns: minmax(260px, 1fr) minmax(0, 2fr);
    gap: 1rem;
    align-items: start;
}

.profile-panel,
.featured-panel {
    border-top: 4px solid #f0bd8c;
}

.profile-list {
    margin: 0.85rem 0;
    padding-left: 1.2rem;
}

.profile-list li + li {
    margin-top: 0.45rem;
}

.post-entry {
    margin-top: 0.8rem;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.95rem 1rem;
    background: var(--surface-soft);
}

.post-entry time {
    font-size: 0.82rem;
    color: var(--muted);
}

.post-entry a {
    color: #5b2f0f;
    font-weight: 700;
    text-decoration: none;
}

.post-entry a:hover {
    text-decoration: underline;
}

.post-entry p {
    margin: 0.45rem 0 0;
    color: var(--muted);
}

.markdown-body {
    font-size: 1rem;
}

.markdown-body h2,
.markdown-body h3 {
    margin-top: 0;
}

.markdown-body a {
    color: #8b470f;
}

.markdown-body ul {
    padding-left: 1.2rem;
}

.post-detail {
    max-width: 860px;
    margin: 0 auto;
}

.post-detail-header h1 {
    margin: 0;
    line-height: 1.3;
}

.post-meta {
    margin: 0.65rem 0 1.1rem;
    color: var(--muted);
    font-size: 0.92rem;
}

.post-cover {
    margin: 0 0 1.2rem;
}

.post-cover img {
    display: block;
    width: 100%;
    max-height: 320px;
    object-fit: cover;
    border-radius: 14px;
    border: 1px solid var(--border);
}

.post-content {
    overflow-wrap: anywhere;
}

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

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

.post-content h2,
.post-content h3,
.post-content h4 {
    margin-top: 1.4rem;
    margin-bottom: 0.65rem;
    line-height: 1.4;
}

.post-content p,
.post-content ul,
.post-content ol,
.post-content blockquote,
.post-content pre {
    margin: 0.72rem 0;
}

.post-content blockquote {
    margin-left: 0;
    padding: 0.65rem 0.9rem;
    border-left: 4px solid #e7b684;
    border-radius: 8px;
    background: #fff6eb;
    color: #6d4b2e;
}

.post-content code {
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 0.92em;
    background: #fff3e2;
    padding: 0.1rem 0.35rem;
    border-radius: 6px;
}

.post-content pre {
    overflow-x: auto;
    padding: 0.85rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #fffaf2;
}

.post-content pre code {
    background: transparent;
    padding: 0;
}

@media (max-width: 980px) {
    .guide-links {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 760px) {
    .site-main {
        padding-top: 1.2rem;
    }

    .site-header-inner {
        padding: 0.5rem 0;
        align-items: flex-start;
        flex-direction: column;
    }

    .home-guide-panel {
        padding: 1.3rem;
    }

    .home-columns,
    .guide-links {
        grid-template-columns: 1fr;
    }
}


#snow-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

body[data-season="winter"] #snow-canvas,
body[data-season="autumn"] #snow-canvas {
    opacity: 1;
}

.site-header,
.site-main {
    position: relative;
    z-index: 2;
}

.doc-jump-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin: 1rem 0 1.2rem;
}

.doc-jump-nav a {
    text-decoration: none;
    padding: 0.28rem 0.68rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--brand-dark);
    background: #fff8ef;
    font-size: 0.88rem;
}

.doc-jump-nav a:hover {
    background: #ffe9d4;
}

@media (max-width: 980px) {
    .guide-links {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}