:root{--brand: #2563eb;--brand-dark: #1d4ed8;--ink: #12263f;--ink-2: #33465c;--muted: #7d8b9c;--line: #e6eaf0;--line-2: #eef1f5;--bg: #f5f7fa;--card: #ffffff;--radius: 10px;--shadow-sm: 0 1px 2px rgba(18, 38, 63, .04);--shadow: 0 2px 10px rgba(18, 38, 63, .05)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Source Han Sans SC,Noto Sans CJK SC,sans-serif;background:var(--bg);color:var(--ink);min-height:100vh;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}#app{display:flex;flex-direction:column;min-height:100vh}.navbar{display:flex;align-items:center;justify-content:space-between;padding:10px 40px;min-height:64px;box-sizing:border-box;background:linear-gradient(180deg,#0e2136,#132a45);border-bottom:1px solid rgba(255,255,255,.06);position:sticky;top:0;z-index:100}.route-progress{position:fixed;top:0;left:0;height:2px;width:0;background:linear-gradient(90deg,#2563eb,#60a5fa);z-index:300;opacity:0;transition:width .25s ease,opacity .2s ease}.route-progress.on{width:82%;opacity:1}.nav-brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}.brand-icon{width:32px;height:32px;background:var(--brand);color:#fff;border-radius:7px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.brand-text{display:flex;flex-direction:column;gap:1px;line-height:1.25}.brand-name{font-size:15px;font-weight:600;color:#fff;letter-spacing:.5px}.brand-sub{font-size:10.5px;color:#8aa0bd;letter-spacing:.3px}.nav-links{display:flex;gap:4px 8px;row-gap:2px;flex:1 1 auto;min-width:0;justify-content:center;flex-wrap:wrap}.nav-links a{text-decoration:none;color:#b6c4d6;font-size:13.5px;padding:7px 14px;border-radius:6px;transition:all .2s;white-space:nowrap}.nav-links a:hover{color:#fff;background:#ffffff14}.nav-links a.active{color:#fff;background:var(--brand);font-weight:500;box-shadow:0 1px 2px #00000026}.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}@media (max-width: 1360px){.navbar{flex-wrap:wrap;row-gap:6px;padding:10px 24px}.nav-links{order:3;flex:1 1 100%}}@media (max-width: 900px){.brand-text,.user-name{display:none}}.role-chip{padding:4px 12px;border-radius:20px;font-size:12px;font-weight:500;color:#c7d3e0;border:1px solid rgba(255,255,255,.16)}.user-name{font-size:13px;color:#fff;font-weight:500}.free-chip{padding:4px 10px;border-radius:20px;font-size:12px;color:#93c5fd;background:#2563eb2e;border:1px solid rgba(147,197,253,.25)}.switch-btn{padding:5px 14px;border:1px solid rgba(255,255,255,.16);background:transparent;color:#aebccd;border-radius:6px;font-size:12px;cursor:pointer}.switch-btn:hover{border-color:var(--brand);color:#fff}.settings-menu{position:relative}.menu-panel{position:absolute;right:0;top:42px;min-width:220px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 14px 36px #0d1b2a29;padding:8px;z-index:300}.menu-row{display:flex;align-items:center;gap:6px;padding:6px 8px 10px;border-bottom:1px solid #eef0f2;margin-bottom:6px}.menu-label{font-size:12px;color:#8896a6;margin-right:2px}.lang-btn{flex:1;padding:6px 8px;border:1px solid #d9e1ec;background:#f8fafc;border-radius:6px;font-size:12px;color:#4a5568;cursor:pointer}.lang-btn.on{background:#2563eb;border-color:#2563eb;color:#fff;font-weight:600}.menu-item{display:block;width:100%;text-align:left;padding:9px 12px;border:none;background:transparent;border-radius:6px;font-size:13px;color:#33465c;text-decoration:none;cursor:pointer}.menu-item:hover{background:#f1f5fb;color:#2563eb}.menu-item.danger{color:#b91c1c}.menu-item.danger:hover{background:#fef2f2;color:#b91c1c}.main-content{flex:1;max-width:1280px;width:100%;margin:0 auto;padding:32px 24px}.main-content.no-nav{max-width:none;padding:0}.footer{text-align:center;padding:18px;color:#93a1b1;font-size:12px;border-top:1px solid var(--line);background:#fff}