:root{--bg-dark:#0f0c29;--bg-gradient:linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);--glass-bg:#ffffff0d;--glass-bg-hover:#ffffff1a;--glass-border:#ffffff1a;--text-main:#f0f0f5;--text-muted:#a0a0b8;--accent-color:#9d4edd;--accent-light:#c77dff;--sidebar-w:320px}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-gradient);color:var(--text-main);background-attachment:fixed;min-height:100vh;margin:0;font-family:Outfit,Noto Sans TC,sans-serif;line-height:1.6;overflow-x:hidden}.glass-panel{background:var(--glass-bg);-webkit-backdrop-filter:blur(16px);border:1px solid var(--glass-border);box-shadow:0 8px 32px #0000004d}.app-container{height:100vh;display:flex;overflow:hidden}.sidebar{width:var(--sidebar-w);border-right:1px solid var(--glass-border);z-index:10;flex-direction:column;flex-shrink:0;gap:1rem;height:100vh;padding:2rem 1rem;display:flex;overflow-y:auto}.sidebar-title{color:var(--text-main);text-shadow:0 0 10px #9d4edd80;align-items:center;gap:.5rem;margin-bottom:1rem;padding-left:.5rem;font-size:1.25rem;font-weight:600;display:flex}.nav-item{border:1px solid var(--glass-border);cursor:pointer;background:#0003;border-radius:12px;flex-direction:column;padding:1rem;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;position:relative;overflow:hidden}.nav-item:before{content:"";background:var(--accent-light);transform-origin:bottom;width:4px;height:100%;transition:transform .3s;position:absolute;top:0;left:0;transform:scaleY(0)}.nav-item:hover{background:var(--glass-bg-hover);transform:translate(4px);box-shadow:0 4px 15px #0003}.nav-item.active{background:#9d4edd26;border-color:#c77dff80;box-shadow:0 0 20px #9d4edd33}.nav-item.active:before{transform:scaleY(1)}.nav-num{color:var(--accent-light);letter-spacing:1px;text-transform:uppercase;margin-bottom:.25rem;font-size:.8rem;font-weight:700}.nav-text{color:var(--text-main);font-size:.95rem;font-weight:400;line-height:1.4}.main-content{scroll-behavior:smooth;flex-grow:1;height:100vh;padding:2rem;overflow-y:auto}.markdown-container{border-radius:20px;width:95%;max-width:1400px;margin:0 auto;padding:3rem;animation:.5s forwards fade-in}.markdown-body{color:#e2e8f0;font-family:inherit;font-size:1.05rem}.markdown-body h1,.markdown-body h2,.markdown-body h3,.markdown-body h4{color:#fff;margin-top:2rem;margin-bottom:1rem;font-weight:600;line-height:1.3}.markdown-body h1{border-bottom:1px solid var(--glass-border);background:linear-gradient(90deg,#c77dff,#fff);-webkit-text-fill-color:transparent;-webkit-background-clip:text;padding-bottom:.5rem;font-size:2.2rem}.markdown-body h2{color:#c77dff;font-size:1.7rem}.markdown-body p{text-shadow:0 1px 2px #00000080;margin-bottom:1.2rem}.markdown-body ul,.markdown-body ol{margin-bottom:1.5rem;padding-left:2rem}.markdown-body li{margin-bottom:.5rem}.markdown-body table{border-collapse:separate;border-spacing:0;border:1px solid var(--glass-border);border-radius:12px;width:100%;margin:2rem 0;overflow:hidden;box-shadow:0 10px 30px #0003}.markdown-body th,.markdown-body td{text-align:left;border-bottom:1px solid var(--glass-border);padding:1rem}.markdown-body th{color:var(--accent-light);text-transform:uppercase;letter-spacing:1px;background:#9d4edd33;font-size:.85rem;font-weight:600}.markdown-body tr:last-child td{border-bottom:none}.markdown-body tr:hover td{background:#ffffff0d}.markdown-body code{color:#ff9e64;background:#0000004d;border-radius:4px;padding:.2rem .4rem;font-family:monospace;font-size:.9em}.markdown-body pre code{color:inherit;background:0 0;padding:0}.markdown-body pre{border:1px solid var(--glass-border);background:#11111b;border-radius:12px;padding:1.5rem;overflow-x:auto}.markdown-body blockquote{border-left:4px solid var(--accent-color);color:var(--text-muted);background:linear-gradient(90deg,#9d4edd1a 0%,#0000 100%);border-radius:0 8px 8px 0;margin:0 0 1.5rem;padding:.5rem 0 .5rem 1.5rem;font-style:italic}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#fff3;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#9d4edd80}@keyframes fade-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.empty-state{height:100%;color:var(--text-muted);text-align:center;flex-direction:column;justify-content:center;align-items:center;display:flex}.empty-state svg{opacity:.5;margin-bottom:1rem}