/* 鸿爪派 — 全站样式 v2 */
*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#10b981;--primary-light:#34d399;--primary-bg:#ecfdf5;--bg:#fafafa;--bg-card:#fff;--text:#1a1a2e;--text-secondary:#555;--text-muted:#999;--border:#e8e8e8;--shadow:0 2px 12px rgba(0,0,0,.06);--shadow-hover:0 6px 24px rgba(0,0,0,.1);--radius:12px;--max-w:720px}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;color:var(--text);background:var(--bg);line-height:1.7;max-width:var(--max-w);margin:0 auto;padding:2rem 1.5rem}

/* 渐变头部 */
header{margin-bottom:2.5rem;padding:2rem 0 1.5rem;text-align:center;position:relative}
header::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:60px;height:3px;background:linear-gradient(90deg,var(--primary),var(--primary-light));border-radius:2px}
h1{font-size:2rem;margin-bottom:.3rem;letter-spacing:-.5px}
h1 span{color:var(--primary)}
.subtitle{color:var(--text-muted);font-size:1rem}
nav{margin-top:1.2rem;display:flex;gap:1.5rem;justify-content:center}
nav a{color:var(--primary);text-decoration:none;font-size:.9rem;font-weight:500;padding:4px 12px;border-radius:20px;transition:background .2s}
nav a:hover{background:var(--primary-bg)}

/* 首页文章卡片 */
article{margin-bottom:1.8rem;padding:1.5rem;background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);transition:box-shadow .25s,transform .25s}
article:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
article:last-child{border-bottom:1px solid var(--border)}
.post-meta{color:var(--text-muted);font-size:.85rem;margin-bottom:.6rem;display:flex;gap:.6rem;flex-wrap:wrap;align-items:center}
.post-meta time{font-variant-numeric:tabular-nums}
.post-meta .tag{background:var(--primary-bg);color:var(--primary);padding:2px 10px;border-radius:12px;font-size:.72rem;font-weight:500}
h2{font-size:1.25rem;margin-bottom:.5rem;line-height:1.5}
h2 a{color:var(--text);text-decoration:none;transition:color .2s}
h2 a:hover{color:var(--primary)}
.excerpt{color:var(--text-secondary);font-size:.92rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.read-more{display:inline-flex;align-items:center;gap:4px;margin-top:.6rem;color:var(--primary);text-decoration:none;font-size:.88rem;font-weight:500;transition:gap .2s}
.read-more:hover{gap:8px}

/* 文章详情页 */
.meta{color:var(--text-secondary);font-size:.85rem;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid var(--border);display:flex;gap:.8rem;flex-wrap:wrap;align-items:center}
.meta .tag{background:var(--primary-bg);color:var(--primary);padding:2px 10px;border-radius:12px;font-size:.72rem;font-weight:500}
.post-body{font-size:1.02rem}
.post-body p{margin-bottom:1.1rem}
.post-body strong{color:var(--text)}
.post-body h2{font-size:1.2rem;margin:2.2rem 0 .6rem;color:var(--text);padding-bottom:.3rem;border-bottom:1px solid var(--border)}
.post-body h3{font-size:1.1rem;margin:1.5rem 0 .5rem}
.post-body pre{background:#1e293b;color:#e2e8f0;padding:1.2rem;border-radius:10px;overflow-x:auto;margin:1.2rem 0;font-size:.88rem;line-height:1.6;border:1px solid #334155}
.post-body code{font-family:'Fira Code','JetBrains Mono',monospace;font-size:.9em;background:var(--primary-bg);padding:2px 6px;border-radius:4px}
.post-body pre code{background:none;padding:0}
.post-body table{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.92rem}
.post-body th,.post-body td{padding:.6rem .8rem;text-align:left;border-bottom:1px solid var(--border)}
.post-body th{background:var(--primary-bg);font-weight:600;color:var(--text)}
.post-body hr{border:none;border-top:1px solid var(--border);margin:2.5rem 0}
.post-body ul,.post-body ol{margin:1rem 0 1rem 1.5rem}
.post-body li{margin-bottom:.4rem}
.post-body blockquote{border-left:3px solid var(--primary);padding:.5rem 1rem;margin:1rem 0;background:var(--primary-bg);border-radius:0 8px 8px 0;color:var(--text-secondary)}
.post-body img{max-width:100%;border-radius:8px;margin:.8rem 0}

/* 返回链接 */
.back{display:inline-flex;align-items:center;gap:4px;margin-bottom:1.5rem;color:var(--primary);text-decoration:none;font-weight:500;transition:gap .2s}
.back:hover{gap:8px}

/* 阅读进度条 */
.reading-progress{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--primary-light));z-index:999;transition:width .1s}

/* 页脚 */
footer{margin-top:3rem;padding:1.5rem 0;text-align:center;color:var(--text-muted);font-size:.82rem;border-top:1px solid var(--border)}
footer a{color:var(--primary);text-decoration:none}

/* 无障碍 */
.skip-link{position:absolute;top:-100px;left:0;background:var(--primary);color:#fff;padding:8px 16px;z-index:100;text-decoration:none;border-radius:0 0 8px 0}
.skip-link:focus{top:0}

/* 暗色模式 */
@media(prefers-color-scheme:dark){
:root{--bg:#0f172a;--bg-card:#1e293b;--text:#e2e8f0;--text-secondary:#94a3b8;--text-muted:#64748b;--border:#334155;--primary-bg:rgba(16,185,129,.12);--shadow:0 2px 12px rgba(0,0,0,.2);--shadow-hover:0 6px 24px rgba(0,0,0,.3)}
.post-body pre{background:#0f172a;border-color:#1e293b}
}

/* 响应式 */
@media(max-width:480px){
body{padding:1.2rem 1rem}
h1{font-size:1.6rem}
article{padding:1.2rem;margin-bottom:1.2rem}
h2{font-size:1.15rem}
}