:root{color-scheme:light;--page-bg: #f4f5f7;--surface: #ffffff;--surface-soft: #f8f9fb;--surface-sunken: #eef0f3;--surface-contrast: #0f1522;--border: #ecedf0;--border-strong: #dcdfe4;--text-primary: #1d2433;--text-secondary: #4d5867;--text-muted: #7a8394;--text-inverse: #ffffff;--accent: #2f6bff;--accent-strong: #1f54de;--accent-soft: rgba(47, 107, 255, .1);--accent-ring: rgba(47, 107, 255, .22);--ok: #16a34a;--ok-soft: rgba(22, 163, 74, .1);--warn: #d97706;--warn-soft: rgba(217, 119, 6, .1);--error: #dc2626;--error-soft: rgba(220, 38, 38, .08);--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--radius-xl: 28px;--radius-pill: 999px;--shadow-xs: 0 1px 2px rgba(15, 23, 42, .04);--shadow-sm: 0 2px 6px rgba(15, 23, 42, .05);--shadow-md: 0 4px 16px rgba(15, 23, 42, .06);--shadow-lg: 0 12px 32px rgba(15, 23, 42, .08);--shell-nav-height: 68px;--shell-toolbar-height: 56px;--shell-bottom-height: 280px;--shell-gutter: 24px;--shell-content-max: 1440px;--shell-gutter-x: 24px;--font-sans: 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var(--border-strong);border-radius:var(--radius-sm);padding:9px 12px;outline:none;transition:border-color .15s ease,box-shadow .15s ease}input::placeholder,textarea::placeholder{color:var(--text-muted)}input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-ring)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:#d8dbe1;border-radius:999px}::-webkit-scrollbar-thumb:hover{background:#bfc3cc}::-webkit-scrollbar-track{background:transparent}.app-shell{min-height:100vh;display:flex;flex-direction:column;background:var(--page-bg)}.app-topbar{position:sticky;top:0;z-index:20;padding:20px var(--shell-gutter-x) 0;background:var(--page-bg)}.app-topbar__inner{max-width:var(--shell-content-max);margin:0 auto;display:flex;align-items:center;gap:20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-pill);padding:10px 14px 10px 18px;box-shadow:var(--shadow-sm);height:var(--shell-nav-height)}.brand{display:flex;align-items:center;gap:10px;color:var(--text-primary);font-weight:600;letter-spacing:-.01em;flex-shrink:0}.brand__mark{width:30px;height:30px;border-radius:9px;background:var(--accent);color:var(--text-inverse);display:grid;place-items:center;font-weight:700;font-size:14px;box-shadow:0 4px 10px #2f6bff47}img.brand__mark{display:block;object-fit:contain;flex-shrink:0;padding:0;border:0;background:transparent;box-shadow:0 4px 12px #0b122038}.brand__name{font-size:15px;font-weight:600}.nav-tabs{display:flex;align-items:center;gap:2px;padding:4px;background:var(--surface-sunken);border-radius:var(--radius-pill);flex:0 1 auto;justify-content:flex-start;min-width:0;overflow-x:auto;scrollbar-width:none}.nav-tabs::-webkit-scrollbar{display:none}.nav-tab{display:inline-flex;align-items:center;gap:8px;padding:8px 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ease-out}@keyframes mobile-nav-in{0%{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.mobile-nav__group-label{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);font-weight:600;padding:8px 10px 6px}.mobile-nav__group-label+.mobile-nav__link{margin-top:0}.mobile-nav__link{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-md);color:var(--text-secondary);font-size:14px;font-weight:500;text-decoration:none;transition:background .15s ease,color .15s ease}.mobile-nav__link:hover{background:var(--surface-sunken);color:var(--text-primary)}.mobile-nav__link.is-active{background:var(--accent-soft);color:var(--accent-strong)}.mobile-nav__link svg{width:18px;height:18px;flex-shrink:0;color:currentColor;opacity:.9}.mobile-nav__link.is-active svg{color:var(--accent);opacity:1}.icon-btn{width:38px;height:38px;border-radius:999px;background:var(--surface-sunken);color:var(--text-secondary);display:inline-grid;place-items:center;transition:background .15s ease,color .15s ease}.icon-btn:hover{background:var(--border);color:var(--text-primary)}.icon-btn svg{width:16px;height:16px}.icon-btn--sm{width:30px;height:30px}.icon-btn--sm svg{width:14px;height:14px}.icon-btn.icon-btn--menu{display:none}.icon-btn.icon-btn--menu.is-active{background:var(--accent);color:var(--text-inverse)}.icon-btn.icon-btn--menu.is-active:hover{background:var(--accent-strong);color:var(--text-inverse)}@media (max-width: 1180px){.nav-tab{padding:8px 10px;gap:0}.nav-tab__label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.nav-tab.is-active{padding:8px 12px}.nav-tabs{justify-content:flex-start}.profile__meta{display:none}.profile{padding:4px}}@media (max-width: 900px){:root{--shell-gutter-x: 16px}.app-topbar{padding-top:14px}.app-topbar__inner{gap:12px;padding:8px 10px 8px 14px;height:56px}.nav-tabs,.nav-tab__divider{display:none}.icon-btn.icon-btn--menu{display:inline-grid}.mobile-nav{display:block;top:76px;left:16px;right:16px}}@media (max-width: 480px){.brand__name{display:none}}.profile-wrap{position:relative}.profile{display:flex;align-items:center;gap:10px;padding:4px 10px 4px 4px;border-radius:var(--radius-pill);background:var(--surface-sunken);transition:background .15s ease,box-shadow .15s ease}.profile:hover{background:var(--border)}.profile.is-open{background:var(--border);box-shadow:0 0 0 3px var(--accent-ring)}.profile__avatar{width:32px;height:32px;border-radius:999px;background:linear-gradient(135deg,#dbeafe,#e0e7ff);color:#1e40af;display:grid;place-items:center;font-weight:600;font-size:12px;flex-shrink:0}.profile__meta{display:flex;flex-direction:column;line-height:1.15}.profile__name{font-size:13px;font-weight:600;color:var(--text-primary)}.profile__role{font-size:11px;color:var(--text-muted)}.profile__chevron{transition:transform .18s ease}.profile__chevron.is-open{transform:rotate(180deg)}.profile-menu{position:absolute;top:calc(100% + 8px);right:0;min-width:240px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:6px;z-index:40;animation:profile-menu-in .14s ease-out}@keyframes profile-menu-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.profile-menu__header{display:flex;align-items:center;gap:12px;padding:12px 12px 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svg{color:currentColor}.profile-menu__item--danger{color:var(--error)}.profile-menu__item--danger:hover{background:var(--error-soft);color:var(--error)}.app-main{flex:1 1 auto;display:flex;flex-direction:column;min-width:0}.app-content{max-width:calc(var(--shell-content-max) + var(--shell-gutter-x) * 2);width:100%;margin:0 auto;padding:24px var(--shell-gutter-x);flex:1 1 auto}.app-content--no-pad{padding:0;max-width:100%}.app-content--workspace{padding:0;max-width:100%;height:calc(100vh - var(--shell-nav-height))}.page-header{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px}.page-header__title{font-size:22px;font-weight:600;letter-spacing:-.02em;color:var(--text-primary);margin:0}.page-header__sub{margin-top:4px;color:var(--text-muted);font-size:13px}.page-notice{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:var(--radius-pill);background:var(--surface);border:1px solid 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