.app-header{z-index:1200;background:color-mix(in srgb, var(--color-surface) 90%, transparent);-webkit-backdrop-filter:saturate(1.6)blur(14px);border-bottom:1px solid var(--color-line);flex-shrink:0;position:sticky;top:0}.header-top{align-items:center;gap:28px;max-width:1280px;height:64px;margin:0 auto;padding:0 24px;display:flex}.header-search{background:var(--color-surface-2);border:1px solid var(--color-line);max-width:480px;height:42px;color:var(--color-muted);border-radius:12px;flex:1;align-items:center;gap:10px;padding:0 6px 0 14px;display:flex}.header-search:focus-within{border-color:var(--color-brand);background:var(--color-surface);box-shadow:var(--focus-ring);color:var(--color-brand)}.header-search input{min-width:0;color:var(--color-ink);background:0 0;outline:none;flex:1;font-size:14px}.header-search kbd{display:none}.header-actions{flex-shrink:0;align-items:center;gap:8px;margin-left:auto;display:flex}.header-icon-button{width:38px;height:38px;color:var(--color-sub);border-radius:50%;place-items:center;display:inline-grid}.header-icon-button:hover{background:var(--color-surface-2);color:var(--color-ink)}.header-search-link{display:none}.header-nav{align-items:stretch;gap:16px;max-width:1280px;height:48px;margin:0 auto;padding:0 24px;display:flex}.main-nav{scrollbar-width:none;flex:1;gap:4px;min-width:0;display:flex;overflow-x:auto}.main-nav::-webkit-scrollbar{display:none}.nav-item{color:var(--color-sub);white-space:nowrap;flex:none;align-items:center;gap:7px;padding:0 12px;font-size:14px;font-weight:600;display:inline-flex;position:relative}.nav-item>svg{color:var(--color-faint);transition:color .16s}.nav-item:after{content:"";background:0 0;border-radius:2px 2px 0 0;height:2px;position:absolute;bottom:0;left:10px;right:10px}.nav-item:hover{color:var(--color-ink)}.nav-item:hover>svg{color:var(--color-sub)}.nav-item.active{color:var(--color-brand);font-weight:750}.nav-item.active>svg{color:var(--color-brand)}.nav-item.active:after{background:var(--color-brand)}.header-write{background:var(--brand-fill);color:#fff;border-radius:999px;flex-shrink:0;align-self:center;align-items:center;gap:6px;height:34px;padding:0 14px;font-size:13px;font-weight:700;display:inline-flex;box-shadow:0 1px 2px #4361ee4d}.header-write:hover{background:var(--brand-fill-hover)}.skip-content{background:var(--color-ink);color:var(--color-surface);z-index:2000;border-radius:8px;padding:12px 20px;position:fixed;top:-80px;left:20px}.skip-content:focus{top:8px}.user-menu{white-space:nowrap;align-items:center;gap:6px;display:flex}.user-menu-placeholder{width:120px;height:36px;display:block}.user-menu-login{color:var(--color-sub);border-radius:10px;padding:8px 10px;font-size:14px;font-weight:600}.user-menu-login:hover{color:var(--color-ink);background:var(--color-surface-2)}.user-menu-signup{height:36px;color:var(--color-brand);background:var(--color-brand-soft);border-radius:10px;align-items:center;padding:0 14px;font-size:14px;font-weight:700;display:inline-flex}.user-menu-signup:hover{background:var(--color-brand-line)}.user-menu-admin{color:var(--color-brand);background:var(--color-brand-soft);border-radius:10px;padding:8px 10px;font-size:13px;font-weight:700}.user-menu-profile{border:1px solid var(--color-line);background:var(--color-surface);max-width:220px;height:38px;color:var(--color-ink);border-radius:999px;align-items:center;gap:8px;padding:0 12px 0 4px;font-size:14px;font-weight:600;display:flex}.user-menu-profile:hover{border-color:var(--color-brand-line)}.user-menu-name{text-overflow:ellipsis;min-width:0;overflow:hidden}.user-avatar{background:var(--color-brand-soft);width:30px;height:30px;color:var(--color-brand);border-radius:50%;flex-shrink:0;place-items:center;font-size:13px;font-weight:800;display:grid}.mobile-tabbar{display:none}.community-shell{background:var(--color-canvas);flex-direction:column;min-height:100dvh;display:flex}.community-shell>main{flex:1;width:100%}.site-page{max-width:768px;margin:0 auto;padding:32px 20px 64px}.site-page-wide{max-width:1280px;padding:28px 24px 64px}.sample-notice{border-bottom:1px solid var(--color-line);background:var(--color-brand-soft);text-align:center;color:var(--color-brand);padding:7px 16px;font-size:12px}.site-footer{border-top:1px solid var(--color-line);background:var(--color-surface);margin-top:auto}.site-footer-inner{grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:16px 32px;max-width:1280px;margin:0 auto;padding:28px 24px 32px;display:grid}.site-footer-brand{align-items:center;gap:14px;display:flex}.site-footer-mark{object-fit:contain;border-radius:12px;flex-shrink:0;width:48px;height:48px}.site-footer-brand strong{color:var(--color-ink);font-size:18px;font-weight:800}.site-footer-brand p{color:var(--color-muted);margin-top:3px;font-size:13px;line-height:1.6}.site-footer-links{color:var(--color-sub);flex-wrap:wrap;gap:4px 18px;font-size:13px;display:flex}.site-footer-links a:hover{color:var(--color-ink)}.site-footer-links .is-strong{color:var(--color-ink);font-weight:700}.site-footer-note{border-top:1px solid var(--color-line);color:var(--color-muted);flex-wrap:wrap;grid-column:1/-1;justify-content:space-between;gap:6px 16px;padding-top:16px;font-size:12px;line-height:1.6;display:flex}@media (max-width:1150px){.header-top{gap:20px}.brand small{display:none}.nav-item{padding:0 10px}}@media (max-width:1023px){.nav-item>svg{display:none}}@media (max-width:767px){.app-header{background:var(--color-surface);-webkit-backdrop-filter:none}.header-top{gap:12px;height:56px;padding:0 12px 0 16px}.brand>img{border-radius:8px;width:30px;height:30px}.brand>span{font-size:20px}.header-search{display:none}.header-search-link{display:inline-grid}.header-actions{gap:2px}.theme-toggle{border-color:#0000;width:38px;height:38px}.user-menu-login{display:none}.user-menu-signup{height:34px;margin-left:4px;padding:0 12px;font-size:13px}.user-menu-name,.user-menu-badge{display:none}.user-menu-profile{border-color:#0000;margin-left:4px;padding:0 3px}.user-menu-admin{padding:7px 9px;font-size:12px}.header-nav{height:44px;padding:0 8px}.nav-item{padding:0 10px;font-size:14px}.nav-item.is-primary,.header-write,.app-header.is-map .header-nav{display:none}.mobile-tabbar{z-index:1400;height:var(--tabbar-h);padding-bottom:env(safe-area-inset-bottom);background:color-mix(in srgb, var(--color-surface) 94%, transparent);-webkit-backdrop-filter:saturate(1.6)blur(14px);border-top:1px solid var(--color-line);grid-template-columns:repeat(5,minmax(0,1fr));display:grid;position:fixed;bottom:0;left:0;right:0}.mobile-tab{min-width:0;color:var(--color-muted);flex-direction:column;justify-content:center;align-items:center;gap:3px;font-size:11px;font-weight:600;display:flex}.mobile-tab[aria-current=page]{color:var(--color-brand);font-weight:800}.mobile-tab-icon{place-items:center;display:grid}.mobile-tab.is-write .mobile-tab-icon{background:var(--brand-fill);color:#fff;border-radius:12px;width:34px;height:34px;margin-top:-2px;box-shadow:0 4px 10px -2px #4361ee80}.mobile-tab.is-write{color:var(--color-sub);gap:2px}.site-page,.site-page-wide{padding:20px 16px 40px}.site-footer-inner{grid-template-columns:minmax(0,1fr);padding:24px 16px 28px}.site-footer-mark{border-radius:11px;width:44px;height:44px}.site-footer-note{flex-direction:column}}