*{margin:0;box-sizing:border-box}body{font:16px/1.8 "PingFang SC","Microsoft Yahei",Arial,SimSun,"Helvetica Neue","Luxi Sans","DejaVu Sans",Tahoma,"Hiragino Sans GB",sans-serif;color:#333;font-weight:400;overflow:auto;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;background:linear-gradient(135deg,#f5f7fa 0,#e4efe9 100%);min-height:100vh}body,html{margin:0;padding:0;-webkit-tap-highlight-color:transparent}.content{max-width:800px;margin:0 auto;padding:20px;min-height:100vh;display:flex;flex-direction:column}a:link,a:visited{color:#1ca237;text-decoration:none;border-bottom:1px solid rgba(52,193,81,.3);transition:all .2s ease}a:hover{color:#32c14f;border-bottom-color:#1ca237}header{background:linear-gradient(135deg,#1ca237 0,#2db348 100%);color:#fff;padding:40px 30px;border-radius:16px;margin-bottom:24px;box-shadow:0 10px 40px rgba(52,193,81,.3);position:relative;overflow:hidden}header::before{content:'📖';position:absolute;right:30px;top:50%;transform:translateY(-50%);font-size:64px;opacity:.3}header h1{font-size:28px;font-weight:700;margin:0;position:relative;z-index:1}header p{margin:8px 0 0;opacity:.9;font-size:14px}.back-link{display:inline-flex;align-items:center;gap:6px;padding:10px 18px;background:rgba(52,193,81,.1);border:1px solid rgba(52,193,81,.2);border-radius:8px;margin-bottom:24px;font-size:14px;font-weight:500;border-bottom:none}.back-link:hover{background:rgba(52,193,81,.15);transform:translateX(-4px);border-bottom:none}section{flex:1}article{background:rgba(255,255,255,.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:32px;border-radius:16px;border:1px solid rgba(0,0,0,.06);box-shadow:0 4px 24px rgba(0,0,0,.06)}article h1,article h2,article h3,article h4,article h5,article h6{color:#222;margin-top:32px;margin-bottom:16px;font-weight:600}article h1:first-child,article h2:first-child,article h3:first-child{margin-top:0}article h2{font-size:22px;padding-bottom:12px;border-bottom:2px solid #1ca237}article h3{font-size:18px;color:#1ca237}article p{margin:16px 0;color:#555}article ol,article ul{padding-left:24px;margin:16px 0}article li{margin:12px 0;color:#555}article li::marker{color:#1ca237}article code{background:rgba(52,193,81,.1);color:#2a9d3e;padding:2px 8px;border-radius:4px;font-family:"SF Mono",Monaco,Consolas,monospace;font-size:.9em}article pre{background:#1e1e1e;color:#d4d4d4;padding:20px;border-radius:12px;overflow-x:auto;margin:20px 0}article pre code{background:0 0;color:inherit;padding:0}article blockquote{border-left:4px solid #1ca237;background:rgba(52,193,81,.05);padding:16px 20px;margin:20px 0;border-radius:0 12px 12px 0;color:#555}article img{max-width:100%;border-radius:12px;margin:20px 0;box-shadow:0 4px 20px rgba(0,0,0,.1)}article table{width:100%;border-collapse:collapse;margin:20px 0;border-radius:12px;overflow:hidden}article td,article th{padding:12px 16px;text-align:left;border-bottom:1px solid rgba(0,0,0,.06)}article th{background:rgba(52,193,81,.1);color:#333;font-weight:600}article tr:hover td{background:rgba(52,193,81,.03)}footer{color:#999;padding:30px 0;text-align:center;font-size:13px;margin-top:40px}footer a{color:#999;border-bottom-color:transparent}footer a:hover{color:#1ca237}@media (max-width:768px){.content{padding:15px}header{padding:30px 20px;border-radius:12px}header h1{font-size:22px}header::before{font-size:48px;right:15px}article{padding:24px 20px;border-radius:12px}}@media (prefers-color-scheme:dark){body{background:linear-gradient(135deg,#1a1a1c 0,#2d2d30 100%);color:#e5e5e7}article{background:rgba(45,45,48,.95);border-color:rgba(255,255,255,.08)}article h1,article h2,article h3,article h4,article h5,article h6{color:#f5f5f7}article h2{border-bottom-color:#1ca237}article li,article p{color:#a1a1a6}article blockquote{background:rgba(52,193,81,.08);color:#a1a1a6}article th{background:rgba(52,193,81,.15);color:#f5f5f7}article td{border-bottom-color:rgba(255,255,255,.08)}article tr:hover td{background:rgba(52,193,81,.05)}.back-link{background:rgba(52,193,81,.15);border-color:rgba(52,193,81,.3)}}.breadcrumb{display:inline-flex;align-items:center;flex-wrap:wrap;gap:8px;padding:10px 18px;background:rgba(52,193,81,.1);border:1px solid rgba(52,193,81,.2);border-radius:8px;margin-bottom:24px;font-size:14px;font-weight:500}.breadcrumb-item{color:#1ca237;text-decoration:none;border-bottom:none!important;transition:all .2s ease}.breadcrumb-item:hover{color:#32c14f;border-bottom:none!important}.breadcrumb-sep{color:#999;font-size:12px;user-select:none}.breadcrumb-current{color:#666;font-weight:400;max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}@media (prefers-color-scheme:dark){.breadcrumb{background:rgba(52,193,81,.15);border-color:rgba(52,193,81,.3)}.breadcrumb-item{color:#34c151}.breadcrumb-item:hover{color:#4cd964}.breadcrumb-sep{color:#666}.breadcrumb-current{color:#a1a1a6}}@media (max-width:768px){.breadcrumb{padding:8px 14px;font-size:13px;gap:6px}.breadcrumb-current{max-width:120px}}.topic-list{list-style:none;padding:0;margin:0}.topic-item{display:flex;align-items:center;justify-content:space-between;padding:12px 0}.topic-item:last-child{border-bottom:none}.topic-link{font-size:15px;color:#333;text-decoration:none;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-right:16px}.topic-link:hover{color:#1ca237}.topic-date{font-size:13px;color:#999;flex-shrink:0}.topic-empty{text-align:center;padding:60px 20px}.empty-icon{font-size:64px;margin-bottom:16px}.empty-text{font-size:16px;color:#999}@media (prefers-color-scheme:dark){.topic-item{border-color:rgba(255,255,255,.08)}.topic-link{color:#f5f5f7}.topic-link:hover{color:#1ca237}.topic-date{color:#888}}@media (max-width:768px){.topic-item{flex-direction:column;align-items:flex-start;gap:4px;padding:10px 0}.topic-link{margin-right:0}.topic-date{font-size:12px}}