*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased;transition:background-color .2s ease,color .2s ease}button{font-family:inherit;cursor:pointer}a{color:inherit;text-decoration:none}:root,:root[data-theme=light]{--color-primary: #4b49ac;--color-primary-hover: #413f93;--color-secondary: #7978e9;--color-accent: #7978e9;--color-info: #7da0fa;--color-accent-light: #98bdff;--color-danger: #f3797e;--color-success: #34b27b;--color-warning: #f0a52e;--color-on-brand: #ffffff;--color-bg: #f3f4fb;--color-surface: #ffffff;--color-surface-2: #f8f9fe;--color-border: #e7eaf3;--color-text: #1f2333;--color-text-muted: #6b7088;--color-text-faint: #9a9fb5;--color-sidebar-bg: #ffffff;--color-sidebar-text: #4a4f6b;--color-sidebar-muted: #9a9fb5;--color-sidebar-active-bg: rgba(75, 73, 172, .1);--color-sidebar-active-text: #4b49ac;--tone-primary-soft: rgba(75, 73, 172, .12);--tone-info-soft: rgba(125, 160, 250, .16);--tone-success-soft: rgba(52, 178, 123, .16);--tone-warning-soft: rgba(240, 165, 46, .16);--tone-danger-soft: rgba(243, 121, 126, .16);--shadow-card: 0 2px 8px rgba(31, 35, 51, .06);--shadow-raised: 0 8px 24px rgba(31, 35, 51, .1)}:root[data-theme=dark]{--color-primary: #7c7af0;--color-primary-hover: #908ef4;--color-secondary: #7978e9;--color-accent: #98bdff;--color-info: #7da0fa;--color-accent-light: #98bdff;--color-danger: #f3797e;--color-success: #3fc790;--color-warning: #f4b54b;--color-on-brand: #ffffff;--color-bg: #0f1117;--color-surface: #181b26;--color-surface-2: #1f2330;--color-border: #2a2f3f;--color-text: #e7e9f2;--color-text-muted: #9aa0b5;--color-text-faint: #6b7088;--color-sidebar-bg: #151823;--color-sidebar-text: #b9bdd2;--color-sidebar-muted: #6b7088;--color-sidebar-active-bg: rgba(121, 120, 233, .18);--color-sidebar-active-text: #98bdff;--tone-primary-soft: rgba(124, 122, 240, .2);--tone-info-soft: rgba(125, 160, 250, .18);--tone-success-soft: rgba(63, 199, 144, .18);--tone-warning-soft: rgba(244, 181, 75, .18);--tone-danger-soft: rgba(243, 121, 126, .2);--shadow-card: 0 2px 10px rgba(0, 0, 0, .4);--shadow-raised: 0 10px 28px rgba(0, 0, 0, .5)}:root{--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;--sidebar-width: 248px;--topbar-height: 64px}.df-shell{display:grid;grid-template-columns:var(--sidebar-width) 1fr;min-height:100vh}.df-sidebar{background-color:var(--color-sidebar-bg);border-right:1px solid var(--color-border);display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.df-sidebar__brand{height:var(--topbar-height);display:flex;align-items:center;padding:0 var(--space-5);border-bottom:1px solid var(--color-border);font-weight:700;color:var(--color-primary)}.df-sidebar__nav{padding:var(--space-4) var(--space-3);display:flex;flex-direction:column;gap:2px;overflow-y:auto}.df-sidebar__item{display:flex;align-items:center;gap:var(--space-3);width:100%;border:none;background:transparent;color:var(--color-sidebar-text);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-size:.9rem;font-weight:500;text-align:left;transition:background-color .15s ease,color .15s ease}.df-sidebar__item:hover{background-color:var(--color-surface-2);color:var(--color-text)}.df-sidebar__item[data-active=true]{background-color:var(--color-sidebar-active-bg);color:var(--color-sidebar-active-text);font-weight:600}.df-sidebar__icon{display:grid;place-items:center;width:20px;font-size:1rem}.df-main{display:flex;flex-direction:column;min-width:0}.df-topbar{height:var(--topbar-height);display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);padding:0 var(--space-6);background-color:var(--color-surface);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:10}.df-topbar__title{font-size:1.1rem;font-weight:700;color:var(--color-text)}.df-topbar__tools,.df-user{display:flex;align-items:center;gap:var(--space-3)}.df-user__meta{display:flex;flex-direction:column;align-items:flex-end;line-height:1.2}.df-user__name{font-size:.85rem;font-weight:600;color:var(--color-text)}.df-user__role{font-size:.72rem;color:var(--color-text-muted)}.df-user__avatar{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background-color:var(--color-primary);color:var(--color-on-brand);font-size:.85rem;font-weight:700}.df-content{padding:var(--space-6);flex:1}@media (max-width: 720px){.df-shell{grid-template-columns:1fr}.df-sidebar{display:none}}.df-card{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);display:flex;flex-direction:column}.df-card__header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);padding:var(--space-4) var(--space-5);border-bottom:1px solid var(--color-border)}.df-card__title{margin:0;font-size:.95rem;font-weight:600;color:var(--color-text)}.df-card__body{padding:var(--space-5);color:var(--color-text)}.df-card__footer{padding:var(--space-3) var(--space-5);border-top:1px solid var(--color-border);color:var(--color-text-muted);font-size:.85rem}.df-stat{display:flex;align-items:center;gap:var(--space-4);background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:var(--space-5)}.df-stat__icon{display:grid;place-items:center;width:48px;height:48px;border-radius:var(--radius-md);flex-shrink:0}.df-stat[data-tone=primary] .df-stat__icon{background-color:var(--tone-primary-soft);color:var(--color-primary)}.df-stat[data-tone=info] .df-stat__icon{background-color:var(--tone-info-soft);color:var(--color-info)}.df-stat[data-tone=success] .df-stat__icon{background-color:var(--tone-success-soft);color:var(--color-success)}.df-stat[data-tone=warning] .df-stat__icon{background-color:var(--tone-warning-soft);color:var(--color-warning)}.df-stat[data-tone=danger] .df-stat__icon{background-color:var(--tone-danger-soft);color:var(--color-danger)}.df-stat__content{display:flex;flex-direction:column;gap:2px;min-width:0}.df-stat__label{font-size:.8rem;color:var(--color-text-muted)}.df-stat__value{font-size:1.5rem;font-weight:700;color:var(--color-text);line-height:1.2}.df-stat__delta{font-size:.78rem;font-weight:600}.df-stat__delta[data-direction=up]{color:var(--color-success)}.df-stat__delta[data-direction=down]{color:var(--color-danger)}.df-icon-btn{display:grid;place-items:center;width:38px;height:38px;border-radius:var(--radius-md);border:1px solid var(--color-border);background-color:var(--color-surface);color:var(--color-text);font-size:1rem;transition:background-color .15s ease,border-color .15s ease}.df-icon-btn:hover{background-color:var(--color-surface-2);border-color:var(--color-primary)}.df-segmented{display:inline-flex;padding:3px;gap:2px;border-radius:var(--radius-md);border:1px solid var(--color-border);background-color:var(--color-surface-2)}.df-segmented__item{border:none;background:transparent;color:var(--color-text-muted);font-size:.8rem;font-weight:600;padding:var(--space-1) var(--space-3);border-radius:calc(var(--radius-md) - 3px);transition:background-color .15s ease,color .15s ease}.df-segmented__item[data-active=true]{background-color:var(--color-surface);color:var(--color-primary);box-shadow:var(--shadow-card)}.df-btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);border:1px solid transparent;border-radius:var(--radius-md);font-size:.88rem;font-weight:600;padding:0 var(--space-4);height:38px;cursor:pointer;transition:background-color .15s ease,border-color .15s ease,opacity .15s ease;white-space:nowrap}.df-btn:disabled{opacity:.55;cursor:not-allowed}.df-btn--primary{background:var(--color-primary);color:var(--color-on-brand)}.df-btn--primary:hover:not(:disabled){background:var(--color-primary-hover)}.df-btn--secondary{background:var(--color-surface);border-color:var(--color-border);color:var(--color-text)}.df-btn--secondary:hover:not(:disabled){border-color:var(--color-primary);color:var(--color-primary)}.df-btn--ghost{background:transparent;color:var(--color-text-muted)}.df-btn--ghost:hover:not(:disabled){background:var(--color-surface-2);color:var(--color-text)}.df-btn--danger{background:var(--color-danger);color:#fff}.df-btn--sm{height:30px;font-size:.8rem;padding:0 var(--space-3)}.df-field{display:flex;flex-direction:column;gap:6px;margin-bottom:var(--space-4)}.df-field__label{font-size:.8rem;font-weight:600;color:var(--color-text-muted)}.df-field__error{font-size:.78rem;color:var(--color-danger)}.df-input,.df-select,.df-textarea{width:100%;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text);font-size:.9rem;padding:0 var(--space-3);height:38px;font-family:inherit}.df-textarea{height:auto;padding:var(--space-3);min-height:80px;resize:vertical}.df-input:focus,.df-select:focus,.df-textarea:focus{outline:none;border-color:var(--color-primary)}.df-table-wrap{overflow-x:auto}.df-table{width:100%;border-collapse:collapse;font-size:.88rem}.df-table th{text-align:left;font-size:.74rem;text-transform:uppercase;letter-spacing:.04em;color:var(--color-text-faint);padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border);white-space:nowrap}.df-table td{padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border);color:var(--color-text)}.df-table tbody tr:hover{background:var(--color-surface-2)}.df-table tbody tr[data-clickable=true]{cursor:pointer}.df-badge{display:inline-flex;align-items:center;font-size:.72rem;font-weight:700;padding:2px 10px;border-radius:999px;text-transform:uppercase;letter-spacing:.02em}.df-badge[data-tone=neutral]{background:var(--color-surface-2);color:var(--color-text-muted)}.df-badge[data-tone=primary]{background:var(--tone-primary-soft);color:var(--color-primary)}.df-badge[data-tone=success]{background:var(--tone-success-soft);color:var(--color-success)}.df-badge[data-tone=warning]{background:var(--tone-warning-soft);color:var(--color-warning)}.df-badge[data-tone=danger]{background:var(--tone-danger-soft);color:var(--color-danger)}.df-badge[data-tone=info]{background:var(--tone-info-soft);color:var(--color-info)}.df-page-header{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-4);margin-bottom:var(--space-5);flex-wrap:wrap}.df-page-header__title{margin:0;font-size:1.35rem;font-weight:700;color:var(--color-text)}.df-page-header__subtitle{margin:4px 0 0;color:var(--color-text-muted);font-size:.88rem}.df-toolbar{display:flex;align-items:center;gap:var(--space-3);flex-wrap:wrap}.df-empty{text-align:center;color:var(--color-text-faint);padding:var(--space-6);font-size:.9rem}.df-alert{padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-size:.85rem;margin-bottom:var(--space-4)}.df-alert[data-tone=danger]{background:var(--tone-danger-soft);color:var(--color-danger)}.df-alert[data-tone=success]{background:var(--tone-success-soft);color:var(--color-success)}.df-spinner{display:inline-block;width:18px;height:18px;border:2px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:df-spin .7s linear infinite}@keyframes df-spin{to{transform:rotate(360deg)}}.df-form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:0 var(--space-4)}.login-screen{min-height:100vh;display:grid;place-items:center;background:radial-gradient(900px 500px at 80% -10%,var(--tone-primary-soft),transparent),var(--color-bg);padding:var(--space-5)}.login-card{width:100%;max-width:380px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-raised);padding:var(--space-6)}.login-brand{display:flex;align-items:center;gap:var(--space-2);font-size:1.15rem;font-weight:800;color:var(--color-text)}.login-brand__dot{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--color-primary),var(--color-accent))}.login-tagline{color:var(--color-text-muted);font-size:.88rem;margin:var(--space-2) 0 var(--space-5)}.login-error{background:var(--tone-danger-soft);color:var(--color-danger);font-size:.85rem;padding:var(--space-3);border-radius:var(--radius-md);margin-bottom:var(--space-4)}.login-password{position:relative}.login-password .df-input{padding-right:64px}.login-password__toggle{position:absolute;right:6px;top:50%;transform:translateY(-50%);height:28px;padding:0 10px;border:none;background:transparent;color:var(--color-primary);font-size:.78rem;font-weight:700;cursor:pointer;border-radius:var(--radius-sm)}.login-password__toggle:hover{background:var(--color-surface-2)}.page-subtitle{margin:0 0 var(--space-5);color:var(--color-text-muted);font-size:.9rem}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--space-4);margin-bottom:var(--space-5)}.card-grid{display:grid;grid-template-columns:2fr 1fr;gap:var(--space-4)}@media (max-width: 900px){.card-grid{grid-template-columns:1fr}}.empty-state{color:var(--color-text-faint);font-size:.9rem;padding:var(--space-5) 0;text-align:center}.status-row{display:flex;align-items:center;gap:var(--space-3)}.status-dot{width:10px;height:10px;border-radius:50%;background-color:var(--color-text-faint)}.status-dot[data-state=ok]{background-color:var(--color-success)}.status-dot[data-state=error]{background-color:var(--color-danger)}.status-dot[data-state=checking]{background-color:var(--color-warning)}.brand-mark{display:flex;align-items:center;gap:var(--space-2)}.brand-mark__dot{width:22px;height:22px;border-radius:6px;background:linear-gradient(135deg,var(--color-primary),var(--color-accent))}