:root{--color-bg-primary: #0f0f1a;--color-bg-secondary: #1a1a2e;--color-bg-card: #1e1e35;--color-bg-card-hover: #252542;--color-bg-input: #16162b;--color-bg-sidebar: #12121f;--color-accent: #6c63ff;--color-accent-hover: #5a52e0;--color-accent-light: rgba(108, 99, 255, .15);--color-accent-glow: rgba(108, 99, 255, .4);--color-success: #00d68f;--color-success-bg: rgba(0, 214, 143, .12);--color-warning: #ffaa00;--color-warning-bg: rgba(255, 170, 0, .12);--color-error: #ff3d71;--color-error-bg: rgba(255, 61, 113, .12);--color-info: #00b4d8;--color-info-bg: rgba(0, 180, 216, .12);--color-text-primary: #eaeaff;--color-text-secondary: #9090b0;--color-text-muted: #5c5c7a;--color-border: rgba(255, 255, 255, .06);--color-border-hover: rgba(255, 255, 255, .12);--font-sans: "Inter", "Noto Sans TC", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-2xl: 48px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-full: 9999px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);--shadow-md: 0 4px 16px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .4);--shadow-glow: 0 0 20px var(--color-accent-glow);--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s ease;--sidebar-width: 260px;--header-height: 64px}[data-theme=light]{--color-bg-primary: #f5f5f9;--color-bg-secondary: #eeeef4;--color-bg-card: #ffffff;--color-bg-card-hover: #f8f8fc;--color-bg-input: #f0f0f6;--color-bg-sidebar: #ffffff;--color-accent: #6c63ff;--color-accent-hover: #5a52e0;--color-accent-light: rgba(108, 99, 255, .08);--color-accent-glow: rgba(108, 99, 255, .2);--color-text-primary: #1a1a2e;--color-text-secondary: #5c5c7a;--color-text-muted: #9090b0;--color-border: rgba(0, 0, 0, .08);--color-border-hover: rgba(0, 0, 0, .15);--color-success-bg: rgba(0, 214, 143, .08);--color-warning-bg: rgba(255, 170, 0, .08);--color-error-bg: rgba(255, 61, 113, .08);--color-info-bg: rgba(0, 180, 216, .08);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .06);--shadow-md: 0 4px 16px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .1)}body,.sidebar,.card,.stat-card,.form-input,.btn{transition:background-color .3s ease,color .3s ease,border-color .3s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:14px;scroll-behavior:smooth}body{font-family:var(--font-sans);background:var(--color-bg-primary);color:var(--color-text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--color-accent);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-accent-hover)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-text-muted);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-text-secondary)}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--color-bg-sidebar);border-right:1px solid var(--color-border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:transform var(--transition-normal)}.sidebar-brand{padding:var(--spacing-lg);border-bottom:1px solid var(--color-border);display:flex;align-items:center;gap:var(--spacing-md)}.sidebar-brand-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--color-accent),#a855f7);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:700;color:#fff;box-shadow:var(--shadow-glow)}.sidebar-brand-text{font-size:1rem;font-weight:600;color:var(--color-text-primary)}.sidebar-nav{flex:1;padding:var(--spacing-md);display:flex;flex-direction:column;gap:var(--spacing-xs)}.sidebar-nav-item{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);color:var(--color-text-secondary);font-size:.93rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast);border:none;background:none;width:100%;text-align:left}.sidebar-nav-item:hover{background:var(--color-accent-light);color:var(--color-text-primary)}.sidebar-nav-item.active{background:var(--color-accent-light);color:var(--color-accent);font-weight:600}.sidebar-nav-item .icon{font-size:1.2rem;width:24px;text-align:center}.main-content{flex:1;margin-left:var(--sidebar-width);padding:var(--spacing-xl);min-height:100vh}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-xl)}.page-title{font-size:1.75rem;font-weight:700;color:var(--color-text-primary)}.page-subtitle{font-size:.93rem;color:var(--color-text-secondary);margin-top:var(--spacing-xs)}.card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-lg);transition:all var(--transition-normal)}.card:hover{border-color:var(--color-border-hover);box-shadow:var(--shadow-md)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-md)}.card-title{font-size:1rem;font-weight:600;color:var(--color-text-primary)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.stat-card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-lg);display:flex;align-items:flex-start;gap:var(--spacing-md);transition:all var(--transition-normal);position:relative;overflow:hidden}.stat-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;border-radius:var(--radius-lg) var(--radius-lg) 0 0}.stat-card.accent:before{background:linear-gradient(90deg,var(--color-accent),#a855f7)}.stat-card.success:before{background:linear-gradient(90deg,var(--color-success),#10b981)}.stat-card.warning:before{background:linear-gradient(90deg,var(--color-warning),#f59e0b)}.stat-card.error:before{background:linear-gradient(90deg,var(--color-error),#f43f5e)}.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--color-border-hover)}.stat-icon{width:48px;height:48px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.5rem;flex-shrink:0}.stat-icon.accent{background:var(--color-accent-light);color:var(--color-accent)}.stat-icon.success{background:var(--color-success-bg);color:var(--color-success)}.stat-icon.warning{background:var(--color-warning-bg);color:var(--color-warning)}.stat-icon.error{background:var(--color-error-bg);color:var(--color-error)}.stat-content{flex:1}.stat-label{font-size:.85rem;color:var(--color-text-secondary);margin-bottom:var(--spacing-xs)}.stat-value{font-size:1.75rem;font-weight:700;color:var(--color-text-primary);line-height:1}.stat-change{font-size:.8rem;margin-top:var(--spacing-xs);font-weight:500}.stat-change.up{color:var(--color-success)}.stat-change.down{color:var(--color-error)}.table-container{overflow-x:auto;border-radius:var(--radius-lg);border:1px solid var(--color-border)}table{width:100%;border-collapse:collapse}thead{background:var(--color-bg-secondary)}th{padding:var(--spacing-md) var(--spacing-lg);text-align:left;font-weight:600;font-size:.85rem;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.5px;white-space:nowrap}td{padding:var(--spacing-md) var(--spacing-lg);border-top:1px solid var(--color-border);font-size:.93rem;white-space:nowrap}tbody tr{transition:background var(--transition-fast)}tbody tr:hover{background:var(--color-bg-card-hover)}.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--radius-full);font-size:.8rem;font-weight:600}.badge:before{content:"";width:6px;height:6px;border-radius:50%}.badge.online{background:var(--color-success-bg);color:var(--color-success)}.badge.online:before{background:var(--color-success);box-shadow:0 0 6px var(--color-success)}.badge.offline{background:#ffffff0d;color:var(--color-text-muted)}.badge.offline:before{background:var(--color-text-muted)}.badge.error{background:var(--color-error-bg);color:var(--color-error)}.badge.error:before{background:var(--color-error);box-shadow:0 0 6px var(--color-error)}.badge.active{background:var(--color-success-bg);color:var(--color-success)}.badge.active:before{background:var(--color-success)}.badge.expired{background:var(--color-warning-bg);color:var(--color-warning)}.badge.expired:before{background:var(--color-warning)}.btn{display:inline-flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--radius-md);font-family:var(--font-sans);font-size:.93rem;font-weight:600;cursor:pointer;border:none;transition:all var(--transition-fast)}.btn-primary{background:var(--color-accent);color:#fff}.btn-primary:hover{background:var(--color-accent-hover);box-shadow:var(--shadow-glow);transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--color-text-secondary);border:1px solid var(--color-border)}.btn-ghost:hover{background:var(--color-accent-light);color:var(--color-accent);border-color:var(--color-accent)}.form-group{margin-bottom:var(--spacing-lg)}.form-label{display:block;font-size:.85rem;font-weight:600;color:var(--color-text-secondary);margin-bottom:var(--spacing-sm)}.form-input{width:100%;padding:var(--spacing-sm) var(--spacing-md);background:var(--color-bg-input);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-primary);font-family:var(--font-sans);font-size:.93rem;transition:all var(--transition-fast);outline:none}.form-input:focus{border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-light)}.login-container{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--color-bg-primary);position:relative;overflow:hidden}.login-container:before{content:"";position:absolute;width:500px;height:500px;background:radial-gradient(circle,var(--color-accent-glow) 0%,transparent 70%);top:-100px;right:-100px;pointer-events:none}.login-container:after{content:"";position:absolute;width:400px;height:400px;background:radial-gradient(circle,rgba(168,85,247,.2) 0%,transparent 70%);bottom:-80px;left:-80px;pointer-events:none}.login-card{width:100%;max-width:420px;padding:var(--spacing-2xl);background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);position:relative;z-index:1}.login-logo{text-align:center;margin-bottom:var(--spacing-xl)}.login-logo .icon{width:56px;height:56px;background:linear-gradient(135deg,var(--color-accent),#a855f7);border-radius:var(--radius-lg);display:inline-flex;align-items:center;justify-content:center;font-size:1.5rem;color:#fff;margin-bottom:var(--spacing-md);box-shadow:var(--shadow-glow)}.login-logo h1{font-size:1.5rem;font-weight:700}.login-logo p{color:var(--color-text-secondary);font-size:.93rem;margin-top:var(--spacing-xs)}.login-error{padding:var(--spacing-sm) var(--spacing-md);background:var(--color-error-bg);border:1px solid rgba(255,61,113,.3);border-radius:var(--radius-md);color:var(--color-error);font-size:.85rem;margin-bottom:var(--spacing-md)}.charts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.loading-spinner{display:flex;align-items:center;justify-content:center;padding:var(--spacing-2xl)}.spinner{width:40px;height:40px;border:3px solid var(--color-border);border-top-color:var(--color-accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{text-align:center;padding:var(--spacing-2xl);color:var(--color-text-muted)}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn var(--transition-normal) ease-out}@media(max-width:768px){.sidebar{transform:translate(-100%)}.main-content{margin-left:0;padding:var(--spacing-md)}.stats-grid,.charts-grid{grid-template-columns:1fr}}