:root{--bg-page: #f3f6fb;--bg-page-alt: #eef3fb;--bg-card: rgba(255, 255, 255, .94);--bg-card-strong: #ffffff;--bg-soft: #f4f8ff;--bg-soft-strong: #e9f1ff;--bg-input: #f8fafc;--bg-sidebar: rgba(255,255,255,.88);--text-primary: #0f172a;--text-secondary: #5f6f86;--text-muted: #8b9ab2;--border: #d8e1ee;--border-strong: #c9d6e8;--border-light: rgba(15, 23, 42, .08);--primary: #3b82f6;--primary-hover: #2563eb;--primary-deep: #1d4ed8;--success: #059669;--warning: #d97706;--error: #dc2626;--shadow-xs: 0 6px 18px rgba(15, 23, 42, .04);--shadow-sm: 0 14px 34px rgba(15, 23, 42, .06);--shadow-md: 0 24px 60px rgba(15, 23, 42, .1);--shadow-glow: 0 18px 45px rgba(59, 130, 246, .12);--radius-sm: 12px;--radius: 18px;--radius-lg: 26px;--radius-xl: 34px}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{min-height:100%}body{font-family:Inter,PingFang SC,Microsoft YaHei,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:radial-gradient(circle at top left,rgba(96,165,250,.16),transparent 26%),radial-gradient(circle at top right,rgba(59,130,246,.1),transparent 22%),linear-gradient(180deg,#f8fbff 0%,var(--bg-page) 44%,var(--bg-page-alt) 100%);color:var(--text-primary);line-height:1.6}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.app{min-height:100vh}.app-shell{display:flex}.sidebar{position:fixed;top:18px;left:18px;width:280px;height:calc(100vh - 36px);background:linear-gradient(180deg,#fffffff0,#ffffffd6);-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);border:1px solid rgba(255,255,255,.65);box-shadow:var(--shadow-md);border-radius:30px;display:flex;flex-direction:column;z-index:40;overflow:hidden}.sidebar-logo{padding:22px 20px;border-bottom:1px solid var(--border-light)}.sidebar-logo-clean{display:flex;align-items:center;gap:14px}.sidebar-brand-mark,.home-logo-badge{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,#2563eb,#60a5fa);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;box-shadow:0 10px 24px #2563eb2e}.sidebar-brand-title,.home-logo-title{font-size:18px;font-weight:800}.sidebar-brand-subtitle,.home-logo-subtitle,.section-subtitle-clean,.page-head-desc,.auth-subtitle,.dashboard-stat-tip,.feature-desc{color:var(--text-secondary);font-size:14px}.sidebar-nav{flex:1;overflow:auto;padding:18px 14px}.sidebar-nav-clean{display:flex;flex-direction:column;gap:8px}.sidebar-section-label{font-size:12px;font-weight:700;color:var(--text-muted);padding:8px 10px 4px;text-transform:uppercase;letter-spacing:.08em}.nav-item{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:12px;color:var(--text-secondary);transition:.2s ease}.nav-item:hover{background:var(--bg-soft);color:var(--primary)}.nav-item.active{background:var(--bg-soft);color:var(--primary);font-weight:700}.nav-icon,.nav-icon-clean,.admin-nav-icon{width:28px;height:28px;border-radius:9px;background:#2563eb14;color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}.sidebar-footer{padding:16px;border-top:1px solid var(--border-light)}.account-panel{display:flex;align-items:center;gap:12px;margin-bottom:14px}.account-avatar{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,#2563eb,#7c3aed);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}.account-email{font-weight:700;font-size:14px}.account-extra{font-size:12px;color:var(--text-secondary)}.main-content{margin-left:316px;width:calc(100% - 316px);padding:30px 28px 36px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px;padding:20px 22px;background:#ffffffb8;border:1px solid rgba(255,255,255,.75);border-radius:24px;box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px)}.topbar-main-block{display:flex;align-items:center;gap:14px}.topbar-eyebrow,.hero-kicker,.auth-copy-kicker,.section-kicker,.dashboard-hero-kicker{color:var(--primary);font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.topbar-title,.page-head-title,.home-section-title,.auth-title,.dashboard-hero-title,.section-title-clean{font-size:28px;font-weight:800;letter-spacing:-.02em}.topbar-actions,.admin-topbar-actions{display:flex;align-items:center;gap:12px}.topbar-pill{display:inline-flex;flex-direction:column;gap:2px;min-width:120px;padding:10px 14px;border-radius:14px;background:var(--bg-soft)}.topbar-pill-label{color:var(--text-secondary);font-size:12px}.topbar-pill-value{font-size:18px;font-weight:800;color:var(--primary)}.mobile-menu-btn{display:none}.notice-bar,.alert{display:flex;align-items:center;gap:12px;padding:14px 16px;margin-bottom:16px;background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow-sm)}.notice-dot{width:8px;height:8px;border-radius:50%;background:var(--primary)}.notice-content{display:flex;gap:10px;flex:1;flex-wrap:wrap}.notice-title{font-weight:700}.notice-text,.notice-more{color:var(--text-secondary);font-size:14px}.notice-close,.modal-close{border:none;background:transparent;cursor:pointer;font-size:22px;color:var(--text-muted);line-height:1}.alert-success{border-color:#0596692e;color:var(--success);background:#0596690f}.alert-error{border-color:#dc26262e;color:var(--error);background:#dc26260f}.page-container,.page-container-clean{display:flex;flex-direction:column;gap:20px}.page-head-clean,.admin-page-head{display:flex;align-items:center;justify-content:space-between;gap:16px}.section-head-inline{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:16px}.card{background:linear-gradient(180deg,var(--bg-card-strong),var(--bg-card));border:1px solid rgba(255,255,255,.86);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm)}.card-clean-section{overflow:hidden}.text-center{text-align:center}.loading{min-height:220px;display:flex;align-items:center;justify-content:center;gap:12px;color:var(--text-secondary)}.spinner{width:18px;height:18px;border-radius:50%;border:2px solid rgba(37,99,235,.2);border-top-color:var(--primary);animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 18px;border-radius:10px;font-size:14px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:.2s ease}.btn:hover{transform:translateY(-1px)}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#fff;box-shadow:var(--shadow-glow)}.btn-primary:hover{background:linear-gradient(135deg,var(--primary-hover),var(--primary-deep))}.btn-secondary{background:#fff;color:var(--text-primary);border-color:var(--border)}.btn-secondary:hover{color:var(--primary);border-color:#2563eb47}.btn-success{background:var(--success);color:#fff}.btn-warning{background:var(--warning);color:#fff}.btn-danger{background:var(--error);color:#fff}.btn-textlike{background:transparent;color:var(--text-secondary)}.btn-block{width:100%}.btn-small{padding:8px 12px;font-size:12px}.input{width:100%;padding:13px 14px;border-radius:14px;border:1px solid rgba(201,214,232,.9);background:linear-gradient(180deg,#fbfdff,#f6f9fd);color:var(--text-primary);box-shadow:inset 0 1px #ffffffbf}.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px #2563eb14;background:#fff}.form-group{margin-bottom:16px}.form-label{display:block;margin-bottom:8px;font-size:14px;font-weight:600;color:var(--text-secondary)}.table-container{width:100%;overflow:auto}.table{width:100%;border-collapse:collapse;min-width:760px}.table th,.table td{padding:14px 12px;border-bottom:1px solid var(--border-light);text-align:left;vertical-align:top;font-size:14px}.table th{color:var(--text-secondary);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em}.table tbody tr:hover{background:#2563eb05}.badge{display:inline-flex;align-items:center;padding:5px 10px;border-radius:999px;font-size:12px;font-weight:700}.badge-primary{background:#2563eb1a;color:var(--primary)}.badge-success{background:#0596691a;color:var(--success)}.badge-warning{background:#d977061a;color:var(--warning)}.badge-error{background:#dc26261a;color:var(--error)}.badge-gray{background:#94a3b824;color:#475569}.pagination,.pagination-clean,.admin-pagination-tools{display:flex;align-items:center;justify-content:center;gap:10px;padding-top:18px;flex-wrap:wrap}.page-btn,.admin-jump-input{min-width:38px;height:38px;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--text-primary)}.page-btn{cursor:pointer}.page-btn:disabled{opacity:.45;cursor:not-allowed}.admin-jump-input{width:70px;padding:0 10px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a6b;display:flex;align-items:center;justify-content:center;padding:20px;z-index:90}.modal{width:min(720px,100%);max-height:calc(100vh - 40px);overflow:auto;background:#fff;border-radius:22px;padding:24px;box-shadow:var(--shadow-md)}.modal-wide{width:min(920px,100%)}.modal-header,.modal-footer,.admin-modal-actions{display:flex;align-items:center;justify-content:space-between;gap:12px}.modal-header{margin-bottom:18px}.modal-title{font-size:22px;font-weight:800}.admin-modal-actions,.modal-footer{justify-content:flex-end;margin-top:20px}.admin-stat-grid,.dashboard-stat-grid-clean,.quick-grid-clean,.package-grid,.package-grid-clean,.package-grid-clean-user,.upload-helper-grid,.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.admin-stat-card,.dashboard-stat-card-clean,.quick-card-clean,.stat-card,.package-card,.package-card-clean,.upload-helper-card{background:linear-gradient(180deg,#fffffffa,#f8faffeb);border:1px solid rgba(255,255,255,.88);border-radius:22px;padding:20px;box-shadow:var(--shadow-sm)}.admin-stat-label,.dashboard-stat-label,.stat-label,.invite-code-label,.package-meta{color:var(--text-secondary);font-size:13px}.admin-stat-value,.dashboard-stat-value,.stat-value,.package-price,.admin-package-price{font-size:28px;font-weight:800}.admin-action-group,.dashboard-hero-actions,.home-hero-buttons,.home-hero-buttons-clean,.inline-form-row,.upload-actions-row,.pay-type-grid-clean,.tabs,.tabs-clean{display:flex;gap:12px;flex-wrap:wrap}.tabs .tab,.tabs-clean .tab{border:1px solid var(--border);background:#fff;color:var(--text-secondary);padding:10px 14px;border-radius:10px;cursor:pointer;font-weight:700}.tabs .tab.active,.tabs-clean .tab.active{color:var(--primary);background:var(--bg-soft);border-color:#2563eb2e}.admin-filter-row{display:flex;gap:12px;flex-wrap:wrap}.admin-role-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:18px}.admin-role-card,.admin-ai-card{display:flex;flex-direction:column;gap:16px}.admin-role-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.admin-role-title-row{display:flex;gap:12px;align-items:flex-start}.admin-role-icon{width:40px;height:40px;border-radius:12px;background:var(--bg-soft);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-weight:800}.admin-role-title{font-size:18px;font-weight:800}.admin-role-desc{color:var(--text-secondary);font-size:13px;margin-top:4px}.admin-role-tags,.admin-template-row,.admin-form-switches{display:flex;gap:8px;flex-wrap:wrap}.admin-tag-chip,.announcement-tag,.hero-panel-tag{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;border:1px solid var(--border);background:#fff;color:var(--text-secondary);font-size:12px}.admin-tag-chip-primary{background:var(--bg-soft);color:var(--primary);border-color:#2563eb2e}.admin-permission-grid,.home-features,.home-features-clean,.home-steps-clean,.rule-list-clean,.announcement-list-clean{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.admin-permission-item,.home-feature-card,.home-feature-card-clean,.home-step-card-clean,.rule-item-clean,.announcement-item-clean{padding:16px;border-radius:16px;background:#fff;border:1px solid var(--border-light)}.admin-permission-item strong{display:block;font-size:14px;margin-bottom:4px}.admin-permission-item span{color:var(--text-secondary);font-size:12px}.admin-permission-picker{border:1px solid var(--border);border-radius:16px;padding:12px;background:#fff;max-height:360px;overflow:auto;display:grid;gap:10px}.admin-permission-check{display:flex;align-items:flex-start;gap:12px;padding:12px;border-radius:12px;background:var(--bg-input);border:1px solid transparent;cursor:pointer}.admin-permission-check.active{background:var(--bg-soft);border-color:#2563eb2e}.admin-permission-check strong{display:block;font-size:14px}.admin-permission-check span{display:block;font-size:12px;color:var(--text-secondary);margin-top:2px}.admin-form-grid-2,.admin-form-grid-3,.admin-config-grid,.dashboard-main-grid,.dashboard-main-grid-bottom,.hero-panel,.home-hero-grid,.auth-shell-clean{display:grid;gap:16px}.admin-form-grid-2,.admin-config-grid,.dashboard-main-grid,.hero-panel,.home-hero-grid,.auth-shell-clean{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-form-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.admin-config-full{grid-column:1 / -1}.admin-config-max-width,.section-shell-narrow{max-width:860px}.admin-status-banner,.hero-note-box,.config-hint-clean,.pay-summary-clean{margin-top:12px;padding:12px 14px;border-radius:14px;background:var(--bg-input);border:1px solid var(--border);color:var(--text-secondary);font-size:13px}.glass-card{position:relative;overflow:hidden}.glass-card:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,rgba(255,255,255,.7),transparent 42%);pointer-events:none}.profile-hero-card,.recharge-hero-card{padding:28px;border-radius:28px;background:radial-gradient(circle at top right,rgba(59,130,246,.14),transparent 24%),linear-gradient(180deg,#fffffffa,#f5f8ffeb);border:1px solid rgba(255,255,255,.92);box-shadow:var(--shadow-md)}.hero-badge-row,.hero-meta-row,.profile-quick-grid,.recharge-summary-grid,.profile-campus-grid,.recharge-action-row{display:flex;gap:12px;flex-wrap:wrap}.hero-pill,.profile-meta-chip,.recharge-meta-chip{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:999px;background:#ffffffb8;border:1px solid rgba(255,255,255,.8);color:var(--text-secondary);font-size:13px;font-weight:600}.hero-pill strong,.profile-meta-chip strong,.recharge-meta-chip strong{color:var(--text-primary)}.profile-quick-grid,.recharge-summary-grid,.profile-campus-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}.profile-quick-card,.recharge-summary-card,.profile-campus-card{padding:18px;border-radius:20px;background:#ffffffc7;border:1px solid rgba(255,255,255,.84);box-shadow:var(--shadow-xs)}.profile-quick-label,.recharge-summary-label,.profile-campus-label{font-size:12px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;font-weight:700}.profile-quick-value,.recharge-summary-value,.profile-campus-value{margin-top:8px;font-size:24px;font-weight:800;color:var(--text-primary)}.profile-layout-grid,.recharge-layout-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(320px,.9fr);gap:18px}.profile-section-card,.recharge-section-card{display:grid;gap:18px}.section-caption{color:var(--text-muted);font-size:13px}.soft-panel{padding:18px;border-radius:20px;background:linear-gradient(180deg,#f8fafff2,#f2f6ffeb);border:1px solid rgba(214,225,238,.8)}.list-card-stack{display:grid;gap:14px}.campus-class-card,.recharge-package-card{padding:18px;border-radius:22px;border:1px solid rgba(216,225,238,.88);background:#ffffffe0;box-shadow:var(--shadow-xs)}.campus-class-head,.recharge-package-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:14px}.campus-class-title,.recharge-package-title{font-size:18px;font-weight:800}.campus-class-subtitle,.recharge-package-subtitle{color:var(--text-secondary);font-size:13px;margin-top:4px}.recharge-price-row{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin:16px 0}.recharge-price-main{font-size:34px;line-height:1;font-weight:900}.recharge-price-note{color:var(--text-secondary);font-size:13px}.recharge-origin-price{color:var(--text-muted);text-decoration:line-through;font-size:14px}.floating-tip{padding:14px 16px;border-radius:16px;background:#ffffffd1;border:1px solid rgba(255,255,255,.88);box-shadow:var(--shadow-xs)}.admin-status-banner.is-success,.is-ok{background:#05966914;border-color:#05966924;color:var(--success)}.admin-status-banner.is-warning{background:#d9770614;border-color:#d9770624;color:var(--warning)}.admin-overview-list,.profile-info-list,.package-list,.auth-copy-points{display:grid;gap:10px}.admin-overview-item,.profile-info-row,.announcement-card-head,.announcement-item-head,.package-meta,.home-header-content,.home-nav-clean,.home-header-clean,.section-heading,.section-heading-left{display:flex;justify-content:space-between;gap:12px;align-items:center}.admin-overview-item{padding:10px 0;border-bottom:1px solid var(--border-light)}.admin-overview-item:last-child{border-bottom:none}.admin-inline-code,.admin-code-chip,.config-code,.config-code-clean,.invite-code-value{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}.admin-code-chip,.invite-code-block{background:var(--bg-input);padding:4px 8px;border-radius:999px}.home-page,.auth-page{min-height:100vh;padding:28px}.home-page-clean,.auth-page-clean{background:transparent}.home-header,.home-header-clean{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px}.home-nav,.home-nav-clean{display:flex;align-items:center;gap:18px;color:var(--text-secondary)}.home-hero,.home-hero-clean,.auth-card-clean,.dashboard-hero-card{background:#ffffffe6;border:1px solid var(--border-light);border-radius:28px;box-shadow:var(--shadow-md)}.home-hero-clean,.auth-card-clean,.dashboard-hero-card{padding:28px}.home-hero-title,.home-hero-title-clean{font-size:clamp(34px,5vw,54px);line-height:1.08;font-weight:900;letter-spacing:-.04em}.home-hero-subtitle,.home-hero-subtitle-clean,.hero-copy{color:var(--text-secondary);font-size:17px;max-width:760px}.hero-inline-stats{display:flex;gap:18px;flex-wrap:wrap;color:var(--text-secondary)}.hero-panel-card,.clean-featured,.featured,.announcement-card-clean,.invite-panel-clean,.empty-block-clean{background:#fff;border:1px solid var(--border-light);border-radius:18px;padding:18px}.auth-card,.auth-card-wide{max-width:520px;margin:0 auto}.auth-card-wide{max-width:920px}.auth-shell-clean{align-items:stretch}.auth-side-copy{padding:20px;display:grid;gap:16px}.auth-link,.auth-muted-link,.inline-action-btn,.home-btn-outline{color:var(--primary)}.progress-bar{height:8px;background:#e2e8f0;border-radius:999px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,#2563eb,#60a5fa);border-radius:inherit}.mb-20{margin-bottom:20px}.mt-20{margin-top:20px}.sidebar-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a66;z-index:30;display:none}@media (max-width: 1100px){.admin-stat-grid,.dashboard-stat-grid-clean,.quick-grid-clean,.package-grid,.package-grid-clean,.package-grid-clean-user,.upload-helper-grid,.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-form-grid-2,.admin-form-grid-3,.admin-config-grid,.dashboard-main-grid,.dashboard-main-grid-bottom,.hero-panel,.home-hero-grid,.auth-shell-clean,.profile-layout-grid,.recharge-layout-grid{grid-template-columns:1fr}}@media (max-width: 900px){.sidebar{top:0;left:0;height:100vh;border-radius:0 30px 30px 0;transform:translate(-100%);transition:transform .22s ease}.sidebar.open{transform:translate(0)}.sidebar-overlay{display:block}.main-content{margin-left:0;width:100%;padding:16px}.mobile-menu-btn{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;border:1px solid var(--border);background:#fff;cursor:pointer}.topbar,.page-head-clean,.admin-page-head,.section-head-inline,.home-header,.home-header-clean,.home-nav-clean,.home-header-content,.announcement-card-head,.announcement-item-head{flex-direction:column;align-items:stretch}}@media (max-width: 640px){body{font-size:14px}.home-page,.auth-page{padding:16px}.card,.home-hero-clean,.auth-card-clean,.dashboard-hero-card,.modal{padding:18px}.topbar-title,.page-head-title,.home-section-title,.auth-title,.dashboard-hero-title,.section-title-clean{font-size:22px}.home-hero-title,.home-hero-title-clean{font-size:32px}.admin-stat-grid,.dashboard-stat-grid-clean,.quick-grid-clean,.package-grid,.package-grid-clean,.package-grid-clean-user,.upload-helper-grid,.stat-grid,.admin-permission-grid,.home-features,.home-features-clean,.home-steps-clean,.rule-list-clean,.announcement-list-clean{grid-template-columns:1fr}.topbar-pill{width:100%}.admin-action-group,.dashboard-hero-actions,.home-hero-buttons,.home-hero-buttons-clean,.inline-form-row,.upload-actions-row,.pay-type-grid-clean,.tabs,.tabs-clean{flex-direction:column}.admin-action-group .btn,.dashboard-hero-actions .btn,.home-hero-buttons .btn,.home-hero-buttons-clean .btn,.inline-form-row .btn,.upload-actions-row .btn{width:100%}.admin-overview-item,.profile-info-row,.section-heading,.section-heading-left{flex-direction:column;align-items:flex-start}.table{min-width:640px}}