/* === 石器时代任务攻略 · v10 风格统一版（配合百里追忆论坛）=== */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --c-bg: #f5ecd6;
    --c-bg-card: #fffaf0;
    --c-bg-soft: #ebe0c2;
    --c-bg-warm: #faf2dd;
    --c-text: #2a2418;
    --c-text-mid: #5a4e38;
    --c-text-soft: #8a7a5a;
    --c-border: #d8c89c;
    --c-border-strong: #b8a274;
    --c-primary: #2d6b3f;        /* 与论坛 logo 主色协调的深绿 */
    --c-primary-soft: #3d8550;
    --c-primary-dark: #1a4025;
    --c-primary-darker: #0e2818;
    --c-accent: #c2581a;
    --c-accent-soft: #e8c89a;
    --c-link: #2d6b3f;
    --c-link-hover: #c2581a;
    --c-code-bg: #ebe0c2;
    --c-shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --c-shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --c-shadow-lg: 0 10px 30px rgba(0,0,0,0.1);
    --f-serif: "Microsoft YaHei", "Hiragino Sans GB", "STSong", "SimSun", Georgia, serif;
    --f-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    --f-mono: "JetBrains Mono", "Cascadia Code", Consolas, "Courier New", monospace;
    --maxw: 760px;
    --maxw-wide: 1120px;
}

html { font-size: 16px; scroll-behavior: smooth; }
body {
    font-family: var(--f-serif);
    color: var(--c-text);
    line-height: 1.78;
    background: var(--c-bg);
    background-image:
        radial-gradient(circle at 20% 0%, rgba(45, 107, 63, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 80% 100%, rgba(194, 88, 26, 0.03) 0%, transparent 50%);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: var(--c-link); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--c-link-hover); }
img { max-width: 100%; height: auto; display: block; }

code, kbd {
    font-family: var(--f-mono);
    font-size: 0.9em;
    background: var(--c-code-bg);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--c-primary-dark);
    border: 1px solid var(--c-border);
}

.container { max-width: var(--maxw-wide); margin: 0 auto; padding: 0 24px; }

/* === 顶部 Header（论坛风格：深绿 + 居中 logo + 主导航）=== */
.site-header {
    background: linear-gradient(180deg, #2d6b3f 0%, #1a4025 100%);
    color: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    border-bottom: 3px solid #c2581a;
}
.site-header .topbar {
    background: rgba(0,0,0,0.2);
    padding: 6px 0;
    font-size: 0.82em;
    color: rgba(255,255,255,0.7);
}
.site-header .topbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.site-header .topbar a { color: rgba(255,255,255,0.85); }
.site-header .topbar a:hover { color: #fff; }
.site-header .topbar .login { display: flex; gap: 12px; }

.site-header .mainbar {
    padding: 18px 0;
}
.site-header .mainbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}
.site-header .brand {
    display: flex;
    align-items: center;
    gap: 14px;
}
.site-header .brand .logo {
    font-size: 1.8em;
    color: #ffd860;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}
.site-header .brand .title {
    font-size: 1.4em;
    font-weight: 900;
    color: #fff;
    letter-spacing: 2px;
    text-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.site-header .brand .subtitle {
    font-size: 0.75em;
    color: rgba(255,255,255,0.7);
    letter-spacing: 1px;
}
.site-header .nav {
    display: flex;
    gap: 4px;
}
.site-header .nav a {
    color: rgba(255,255,255,0.9);
    padding: 8px 18px;
    border-radius: 6px;
    font-size: 0.95em;
    transition: all 0.15s;
    border: 1px solid transparent;
}
.site-header .nav a:hover {
    background: rgba(255,255,255,0.12);
    color: #fff;
    border-color: rgba(255,255,255,0.2);
}
.site-header .nav a.active {
    background: rgba(194, 88, 26, 0.7);
    color: #fff;
    border-color: #ffd860;
}

/* === 首页 Hero === */
.hero {
    background: linear-gradient(180deg, rgba(45, 107, 63, 0.08) 0%, transparent 100%);
    padding: 60px 0 50px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 30% 20%, rgba(45, 107, 63, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 70% 80%, rgba(194, 88, 26, 0.05) 0%, transparent 40%);
    pointer-events: none;
}
.hero .container { position: relative; }
.hero .icon {
    font-size: 3em;
    margin-bottom: 16px;
    display: inline-block;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
}
.hero h1 {
    font-size: 2.6em;
    font-weight: 900;
    color: var(--c-primary-darker);
    letter-spacing: 4px;
    margin-bottom: 12px;
}
.hero .subtitle {
    font-size: 0.95em;
    color: var(--c-text-mid);
    letter-spacing: 3px;
    margin-bottom: 20px;
    text-transform: uppercase;
}
.hero .meta {
    font-size: 0.85em;
    color: var(--c-text-soft);
    padding: 8px 20px;
    display: inline-block;
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: 20px;
}

main.site-main { padding: 40px 0 60px; }

.intro {
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: 10px;
    padding: 22px 28px;
    margin-bottom: 32px;
    color: var(--c-text-mid);
    font-size: 0.95em;
    box-shadow: var(--c-shadow-sm);
}
.intro strong { color: var(--c-primary); font-weight: 700; }
.intro h2 { font-size: 1.15em; color: var(--c-primary); margin-bottom: 10px; }

/* 分类网格 */
.cat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
    gap: 22px;
}
.cat-card {
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: 12px;
    padding: 22px 24px;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
    box-shadow: var(--c-shadow-sm);
}
.cat-card::before {
    content: "";
    position: absolute;
    left: 0; top: 0;
    width: 4px; height: 100%;
    background: linear-gradient(180deg, var(--c-primary) 0%, var(--c-accent) 100%);
    opacity: 0;
    transition: opacity 0.2s;
}
.cat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--c-shadow-lg);
    border-color: var(--c-primary);
}
.cat-card:hover::before { opacity: 1; }
.cat-card h3 {
    font-size: 1.15em;
    color: var(--c-primary);
    margin-bottom: 4px;
    font-weight: 700;
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
}
.cat-card h3 a { color: inherit; }
.cat-card h3 a:hover { color: var(--c-accent); }
.cat-card .count { font-size: 0.72em; color: var(--c-text-soft); font-weight: normal; }
.cat-card ul { list-style: none; margin-top: 14px; border-top: 1px solid var(--c-border); }
.cat-card li {
    padding: 8px 0;
    font-size: 0.92em;
    border-bottom: 1px solid var(--c-border);
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 8px;
    transition: padding 0.15s;
}
.cat-card li:last-child { border-bottom: none; }
.cat-card li:hover { padding-left: 4px; }
.cat-card li a { flex: 1; }
.cat-card li .img-tag {
    background: var(--c-accent-soft);
    color: var(--c-accent);
    font-size: 0.7em;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 700;
    flex-shrink: 0;
}
.cat-card li.more { text-align: center; padding-top: 12px; border-bottom: none; }
.cat-card li.more a { color: var(--c-text-soft); font-style: italic; font-size: 0.88em; }

/* === 分类页 === */
.cat-page-header {
    background: linear-gradient(180deg, rgba(45, 107, 63, 0.12) 0%, rgba(245, 236, 214, 0) 100%);
    padding: 40px 0 36px;
    text-align: center;
    border-bottom: 2px solid var(--c-border);
}
.cat-page-header h1 {
    font-size: 2em;
    color: var(--c-primary-darker);
    font-weight: 900;
    letter-spacing: 3px;
}

.crumb {
    max-width: var(--maxw-wide);
    margin: 0 auto;
    padding: 0 24px;
    font-size: 0.88em;
    color: var(--c-text-mid);
    margin-top: 8px;
}
.crumb a { color: var(--c-primary); border-bottom: 1px dotted var(--c-border-strong); }
.crumb a:hover { color: var(--c-accent); border-bottom-color: var(--c-accent); }
.crumb span { color: var(--c-text-soft); }

.quest-list {
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: 12px;
    padding: 28px 32px;
    margin: 32px 0;
    box-shadow: var(--c-shadow-sm);
}
.quest-list h2 {
    color: var(--c-primary);
    font-size: 1.15em;
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--c-primary);
}
.quest-list ol { list-style: none; counter-reset: quest; padding: 0; }
.quest-list li {
    counter-increment: quest;
    padding: 14px 0 14px 48px;
    border-bottom: 1px solid var(--c-border);
    position: relative;
    transition: padding 0.15s;
}
.quest-list li:hover { padding-left: 52px; }
.quest-list li:last-child { border-bottom: none; }
.quest-list li::before {
    content: counter(quest);
    position: absolute;
    left: 0; top: 14px;
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-soft) 100%);
    color: #fff;
    border-radius: 50%;
    text-align: center;
    line-height: 36px;
    font-weight: 700;
    font-size: 0.9em;
    box-shadow: var(--c-shadow-sm);
}
.quest-list li a { font-size: 1em; font-weight: 500; }
.quest-list li .author { color: var(--c-text-soft); font-size: 0.82em; margin-left: 8px; }
.quest-list li .img-count {
    background: var(--c-accent-soft);
    color: var(--c-accent);
    font-size: 0.72em;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 700;
    margin-left: 6px;
}

/* === 详情页 === */
.page-header {
    background: linear-gradient(180deg, rgba(45, 107, 63, 0.1) 0%, rgba(245, 236, 214, 0) 100%);
    padding: 20px 0;
    border-bottom: 1px solid var(--c-border);
}
.page-main { max-width: var(--maxw); margin: 36px auto 80px; padding: 0 24px; }

.page-title {
    font-size: 2.2em;
    font-weight: 900;
    color: var(--c-primary-darker);
    line-height: 1.35;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
    text-align: center;
    border-bottom: 3px double var(--c-border-strong);
    padding-bottom: 16px;
}
.page-meta {
    color: var(--c-text-soft);
    font-size: 0.88em;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--c-border);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}
.page-meta .author { display: inline-flex; align-items: center; gap: 4px; }
.page-meta .author::before { content: "✍️"; font-size: 0.9em; }
.page-meta .img-count {
    background: var(--c-accent-soft);
    color: var(--c-accent);
    padding: 3px 12px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 0.82em;
}

.page-content { font-size: 1.02em; line-height: 1.85; color: var(--c-text); }
.page-content p { margin: 1.1em 0; text-indent: 2em; }
.page-content p.no-indent, .page-content p[align="center"] { text-indent: 0; text-align: center; }
.page-content p[align="left"] { text-indent: 2em; }

.page-content h2 {
    color: var(--c-primary);
    font-size: 1.45em;
    font-weight: 900;
    margin: 2.2em 0 0.7em;
    padding: 12px 0 12px 18px;
    border-left: 5px solid var(--c-primary);
    background: linear-gradient(90deg, var(--c-bg-warm) 0%, transparent 60%);
    text-indent: 0;
    line-height: 1.4;
    border-radius: 0 6px 6px 0;
    letter-spacing: 1px;
}
.page-content h3 {
    color: var(--c-text);
    font-size: 1.18em;
    font-weight: 700;
    margin: 1.6em 0 0.5em;
    padding: 6px 0 6px 14px;
    border-left: 3px solid var(--c-accent);
    background: var(--c-bg-warm);
    border-radius: 0 4px 4px 0;
    text-indent: 0;
}
.page-content .highlight {
    text-align: center;
    color: var(--c-primary-dark);
    font-size: 1.15em;
    font-weight: 700;
    margin: 1.4em 0;
    padding: 16px 20px;
    background: linear-gradient(135deg, var(--c-bg-warm) 0%, var(--c-bg-soft) 100%);
    border-radius: 8px;
    text-indent: 0;
    border-left: 3px solid var(--c-accent);
    box-shadow: var(--c-shadow-sm);
}
.page-content .callout {
    background: var(--c-bg-warm);
    border-left: 4px solid var(--c-accent);
    padding: 14px 20px;
    margin: 1.4em 0;
    border-radius: 0 8px 8px 0;
    text-indent: 0;
    line-height: 1.75;
    font-size: 0.95em;
    box-shadow: var(--c-shadow-sm);
}
.page-content .callout .label {
    color: var(--c-accent);
    font-weight: 700;
    margin-right: 8px;
    font-size: 0.95em;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.page-content blockquote {
    border-left: 3px solid var(--c-border-strong);
    background: var(--c-bg-soft);
    margin: 1.4em 0;
    padding: 14px 20px;
    color: var(--c-text-mid);
    border-radius: 0 6px 6px 0;
    text-indent: 0;
    font-size: 0.95em;
    font-style: italic;
}
.page-content ol, .page-content ul { margin: 1em 0 1em 1.4em; padding-left: 0.6em; }
.page-content ol li, .page-content ul li { margin: 0.4em 0; line-height: 1.85; text-indent: 0; }
.page-content ol li::marker { color: var(--c-primary); font-weight: 700; }
.page-content strong { color: var(--c-primary-dark); font-weight: 700; }

.page-content .img-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
    margin: 1.4em 0;
    padding: 16px;
    background: var(--c-bg-warm);
    border-radius: 10px;
    border: 1px solid var(--c-border);
}
.page-content .img-grid a {
    display: block;
    border-radius: 6px;
    overflow: hidden;
    background: #fff;
    border: 1px solid var(--c-border);
    transition: transform 0.2s, box-shadow 0.2s;
}
.page-content .img-grid a:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(0,0,0,0.2);
    z-index: 5;
    position: relative;
}
.page-content .img-grid img { 
    width: 100%; 
    height: auto; 
    display: block; 
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}
.page-content img:not(.img-grid img) {
    max-width: 100%;
    border-radius: 6px;
    border: 1px solid var(--c-border);
    margin: 1em auto;
    box-shadow: var(--c-shadow-sm);
}
.page-content a[href$=".gif"], .page-content a[href$=".jpg"], .page-content a[href$=".png"] {
    border: none;
    display: inline-block;
}
.page-content .related {
    margin-top: 1.6em;
    padding: 14px 20px;
    background: var(--c-bg-warm);
    border-left: 4px solid var(--c-primary);
    border-radius: 0 8px 8px 0;
    text-indent: 0;
    font-size: 0.95em;
    color: var(--c-text-mid);
    box-shadow: var(--c-shadow-sm);
}
.page-content .related::before { content: "→ "; color: var(--c-primary); font-weight: 700; margin-right: 4px; }
.page-content .tail {
    margin-top: 2em;
    padding-top: 1.2em;
    border-top: 1px dashed var(--c-border-strong);
    color: var(--c-text-soft);
    font-size: 0.9em;
    line-height: 1.7;
}
.page-content .dead-link {
    color: var(--c-text-soft);
    text-decoration: line-through;
    cursor: not-allowed;
}

/* 数据表格 */
.page-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.6em 0;
    background: var(--c-bg-card);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--c-border);
    box-shadow: var(--c-shadow-sm);
    font-size: 0.95em;
}
.page-content table td, .page-content table th {
    padding: 12px 16px;
    border-bottom: 1px solid var(--c-border);
    text-align: left;
    vertical-align: middle;
    line-height: 1.5;
}
.page-content table tr:last-child td { border-bottom: none; }
.page-content table tr:nth-child(even) td { background: rgba(235, 224, 194, 0.4); }
.page-content table tr:hover td { background: var(--c-bg-soft); }
.page-content table tr:first-child td[bgcolor], .page-content table tr:first-child td[colspan] {
    background: linear-gradient(135deg, #2d6b3f 0%, #1a4025 100%) !important;
    color: #fff !important;
    font-weight: 700;
    font-size: 1.08em;
    text-align: center;
    padding: 14px 18px;
    border-bottom: 2px solid var(--c-accent);
    letter-spacing: 1px;
}
.page-content table tr:first-child td[bgcolor] b, .page-content table tr:first-child td[colspan] b { color: #fff !important; font-weight: 700; }
.page-content table td[bgcolor] {
    background: var(--c-bg-warm) !important;
    font-weight: 600;
    color: var(--c-primary-dark) !important;
    width: 30%;
    min-width: 110px;
}
.page-content table[bgcolor], .page-content table[cellpadding], .page-content table[cellspacing] { background: var(--c-bg-card) !important; }
.page-content td[bgcolor] { background: var(--c-bg-warm) !important; color: var(--c-primary-dark) !important; }

.page-nav {
    margin-top: 48px;
    padding: 20px 24px;
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: 10px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.92em;
    box-shadow: var(--c-shadow-sm);
}
.page-nav a {
    padding: 10px 18px;
    background: var(--c-bg-warm);
    border-radius: 8px;
    color: var(--c-primary);
    font-weight: 500;
    transition: all 0.15s;
    border: 1px solid var(--c-border);
}
.page-nav a:hover { background: var(--c-primary); color: #fff; transform: translateY(-1px); box-shadow: var(--c-shadow-md); border-color: var(--c-primary); }

.site-footer {
    background: linear-gradient(180deg, #1a4025 0%, #0e2818 100%);
    color: rgba(255,255,255,0.65);
    text-align: center;
    padding: 30px 20px;
    font-size: 0.85em;
    margin-top: 60px;
    border-top: 3px solid var(--c-accent);
}
.site-footer p { margin: 4px 0; }
.site-footer a { color: #ffd860; border-bottom: 1px dotted rgba(255, 216, 96, 0.4); }
.site-footer a:hover { color: #fff; }

/* 浮动：回到顶部 */
.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    background: var(--c-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2em;
    box-shadow: var(--c-shadow-lg);
    cursor: pointer;
    transition: all 0.2s;
    opacity: 0;
    pointer-events: none;
    z-index: 99;
}
.back-to-top:hover { background: var(--c-accent); transform: translateY(-3px); }
.back-to-top.show { opacity: 1; pointer-events: auto; }

@media (max-width: 720px) {
    .site-header .mainbar { padding: 14px 0; }
    .site-header .mainbar .container { flex-direction: column; gap: 12px; }
    .site-header .nav { flex-wrap: wrap; justify-content: center; }
    .site-header .nav a { padding: 6px 12px; font-size: 0.88em; }
    .hero { padding: 40px 0 30px; }
    .hero h1 { font-size: 1.8em; letter-spacing: 3px; }
    .hero .subtitle { letter-spacing: 2px; font-size: 0.85em; }
    .hero .icon { font-size: 2.4em; }
    .cat-grid { grid-template-columns: 1fr; }
    .page-main { padding: 0 16px; }
    .page-content { font-size: 0.98em; }
    .page-title { font-size: 1.7em; }
    .page-content h2 { font-size: 1.25em; }
    .page-content h3 { font-size: 1.05em; }
    .page-content .img-grid { grid-template-columns: repeat(2, 1fr); padding: 12px; gap: 10px; }
    .page-nav { flex-direction: column; }
    .page-nav a { text-align: center; }
    .quest-list { padding: 22px 18px; }
    .quest-list li { padding-left: 42px; }
    .quest-list li::before { width: 30px; height: 30px; line-height: 30px; font-size: 0.85em; }
    .back-to-top { bottom: 16px; right: 16px; }
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--c-bg-soft); }
::-webkit-scrollbar-thumb { background: var(--c-border-strong); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--c-primary-soft); }

::selection { background: var(--c-primary); color: #fff; }

.reading-progress {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--c-primary) 0%, var(--c-accent) 100%);
    z-index: 200;
    transition: width 0.1s ease-out;
    box-shadow: 0 1px 4px rgba(45, 107, 63, 0.4);
}