/* ============================================================
   一颗会呼吸的石头 —— 站点样式
   配色与「财务报表分析筛选助手」保持一致（主题蓝 #2563eb）
   想改颜色/字号，改下面 :root 里的变量即可，改完双击 build.bat
   ============================================================ */

:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --primary-lighter: #dbeafe;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --radius: 12px;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 6px 20px rgba(37, 99, 235, 0.12);
    --maxw: 760px;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    font-size: 16px;
    line-height: 1.85;
    -webkit-font-smoothing: antialiased;
    /* 内容少时也把页脚压到屏幕底部，不留大片空白 */
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
main { flex: 1 0 auto; }
.site-header, .site-footer { flex: none; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---------- 顶部 ---------- */
.site-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    padding: 30px 0 26px;
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: #fff; }
.brand-mark {
    width: 42px; height: 42px; flex: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.35);
    display: flex; align-items: center; justify-content: center;
    font-size: 20px;
}
.brand-text .t1 { font-size: 19px; font-weight: 700; letter-spacing: .5px; }
.brand-text .t2 { font-size: 13px; opacity: .82; margin-top: 1px; }
.site-nav { display: flex; gap: 8px; flex-wrap: wrap; }
.site-nav a {
    color: #fff; text-decoration: none; font-size: 14px;
    padding: 7px 14px; border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.22);
    transition: background .2s;
}
.site-nav a:hover { background: rgba(255, 255, 255, 0.28); }

/* ---------- 主体 ---------- */
main { padding: 34px 0 10px; }

.intro-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px 26px;
    margin-bottom: 30px;
}
.intro-card p { color: var(--text-secondary); font-size: 15px; }
.intro-card p + p { margin-top: 13px; }

.section-title {
    font-size: 15px; font-weight: 700; color: var(--text-primary);
    letter-spacing: 1px; margin: 0 0 14px;
    display: flex; align-items: center; gap: 9px;
}
.section-title::before {
    content: ''; width: 4px; height: 15px; border-radius: 2px; background: var(--primary);
}

/* 工具卡片 */
.tool-list { display: grid; gap: 12px; margin-bottom: 34px; }
.tool-card {
    display: block; text-decoration: none; color: inherit;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius);
    padding: 18px 20px;
    box-shadow: var(--shadow);
    transition: transform .18s, box-shadow .18s;
}
.tool-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.tool-card .tn { font-size: 16px; font-weight: 700; color: var(--primary-dark); }
.tool-card .td { font-size: 14px; color: var(--text-secondary); margin-top: 5px; }
.tool-card .tgo { font-size: 13px; color: var(--primary); margin-top: 9px; font-weight: 600; }

/* 文章列表 */
.post-list { display: grid; gap: 12px; }
.post-item {
    display: block; text-decoration: none; color: inherit;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
    box-shadow: var(--shadow);
    transition: transform .18s, box-shadow .18s, border-color .18s;
}
.post-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); border-color: var(--primary-lighter); }
.post-item .pt { font-size: 17px; font-weight: 700; color: var(--text-primary); }
.post-item:hover .pt { color: var(--primary-dark); }
.post-item .pm { font-size: 12.5px; color: var(--text-light); margin-top: 4px; }
.post-item .ps { font-size: 14px; color: var(--text-secondary); margin-top: 8px; }

.empty-tip {
    background: var(--card-bg); border: 1px dashed var(--border);
    border-radius: var(--radius); padding: 30px; text-align: center;
    color: var(--text-light); font-size: 14px;
}

/* ---------- 文章页 ---------- */
.article {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 30px 32px 34px;
}
.article h1.title { font-size: 25px; line-height: 1.45; margin-bottom: 8px; }
.article .meta { font-size: 13px; color: var(--text-light); padding-bottom: 18px; border-bottom: 1px solid var(--border); margin-bottom: 22px; }

.article h2 { font-size: 20px; margin: 30px 0 12px; padding-left: 11px; border-left: 4px solid var(--primary); line-height: 1.4; }
.article h3 { font-size: 17px; margin: 24px 0 10px; color: var(--primary-dark); }
.article h4 { font-size: 15.5px; margin: 20px 0 8px; }
.article p { margin: 13px 0; }
.article ul, .article ol { margin: 13px 0 13px 24px; }
.article li { margin: 6px 0; }
.article a { color: var(--primary); }
.article strong { color: var(--primary-dark); }
.article hr { border: none; border-top: 1px solid var(--border); margin: 28px 0; }

.article blockquote {
    margin: 18px 0; padding: 12px 18px;
    background: #f1f5f9; border-left: 4px solid var(--primary);
    border-radius: 0 8px 8px 0; color: var(--text-secondary);
}
.article blockquote p { margin: 6px 0; }

.article code {
    background: #f1f5f9; color: #b91c1c;
    padding: 2px 6px; border-radius: 4px;
    font-family: Consolas, Monaco, monospace; font-size: 14px;
}
.article pre {
    background: #1e293b; color: #e2e8f0;
    padding: 16px 18px; border-radius: 8px;
    overflow-x: auto; margin: 18px 0; line-height: 1.65;
}
.article pre code { background: none; color: inherit; padding: 0; font-size: 13.5px; }

.table-scroll { overflow-x: auto; margin: 18px 0; -webkit-overflow-scrolling: touch; }
.article table { border-collapse: collapse; width: 100%; font-size: 14.5px; min-width: 420px; }
.article th, .article td { border: 1px solid var(--border); padding: 9px 12px; text-align: left; }
.article th { background: var(--primary-lighter); color: var(--primary-dark); font-weight: 700; }
.article tbody tr:nth-child(even) { background: #f8fafc; }

.article img { max-width: 100%; border-radius: 8px; display: block; margin: 18px auto; }

.back-link {
    display: inline-block; margin: 24px 0 0;
    color: var(--primary); text-decoration: none;
    font-size: 14px; font-weight: 600;
}
.back-link:hover { text-decoration: underline; }

/* ---------- 页脚 ---------- */
.site-footer {
    margin-top: 44px; padding: 26px 0 34px;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 13px; color: var(--text-light);
    line-height: 2;
}
.site-footer a { color: var(--text-secondary); text-decoration: none; }
.site-footer a:hover { color: var(--primary); text-decoration: underline; }

/* ---------- 手机 ---------- */
@media (max-width: 640px) {
    body { font-size: 15.5px; }
    .wrap { padding: 0 15px; }
    .site-header { padding: 22px 0 20px; }
    .site-header .wrap { flex-direction: column; align-items: flex-start; gap: 14px; }
    .site-nav { width: 100%; }
    .site-nav a { flex: 1; text-align: center; }
    .intro-card { padding: 18px 18px; }
    .article { padding: 22px 18px 26px; border-radius: 10px; }
    .article h1.title { font-size: 21px; }
    .article h2 { font-size: 18px; }
    .article h3 { font-size: 16px; }
}