:root{--bg: #0a0a14;--panel: #14141f;--panel-2: #1c1c2b;--border: #2a2a40;--gold: #d4af37;--gold-dim: #8a7a2e;--text: #e8e6e0;--text-dim: #8a8899;--jade: #4ade80;--danger: #f87171;--purple: #a78bfa;--blue: #60a5fa}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#app{height:100%;background:var(--bg);color:var(--text);font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,sans-serif;font-size:15px;line-height:1.6}body{max-width:560px;margin:0 auto;padding:env(safe-area-inset-top) 0 env(safe-area-inset-bottom)}.panel{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px;margin:12px}.btn{display:block;width:100%;padding:12px;border:1px solid var(--gold-dim);border-radius:8px;background:linear-gradient(180deg,#2a2410,#1a1608);color:var(--gold);font-size:16px;text-align:center;cursor:pointer;transition:all .2s}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn.secondary{border-color:var(--border);background:var(--panel-2);color:var(--text-dim)}.input{width:100%;padding:12px;background:var(--panel-2);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:15px;outline:none}.input:focus{border-color:var(--gold-dim)}.title{text-align:center;font-size:22px;color:var(--gold);letter-spacing:6px;margin:24px 0 8px}.subtitle{text-align:center;color:var(--text-dim);font-size:13px;margin-bottom:24px}.toast{position:fixed;left:50%;bottom:20%;transform:translate(-50%);background:#000000d9;border:1px solid var(--gold-dim);color:var(--gold);padding:10px 20px;border-radius:8px;z-index:999;max-width:80%;text-align:center;font-size:14px}.grade-1{color:#d1d5db}.grade-2{color:var(--jade)}.grade-3{color:var(--blue)}.grade-4{color:var(--purple)}.grade-5{color:#fb923c}.grade-6{color:#f87171}body.admin-mode{max-width:none;padding:0;background:#0b0b14}.admin-login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(1200px 600px at 50% -10%,rgba(212,175,55,.12),transparent 60%)}.admin-login-card{width:100%;max-width:380px;background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:28px 24px;box-shadow:0 18px 50px #00000073}.admin-login-title{font-size:20px;color:var(--gold);letter-spacing:4px;text-align:center}.admin-login-sub{text-align:center;color:var(--text-dim);font-size:12px;letter-spacing:2px;margin:6px 0 22px}.admin-login-err{margin-top:12px;color:var(--danger);font-size:13px;text-align:center}.admin-shell{display:flex;min-height:100vh;align-items:stretch}.admin-side{width:210px;flex:none;background:linear-gradient(180deg,#14141f,#0d0d16);border-right:1px solid var(--border);padding:20px 14px;display:flex;flex-direction:column;gap:18px;position:sticky;top:0;height:100vh}.admin-brand{font-size:17px;color:var(--gold);letter-spacing:2px;padding:4px 6px}.admin-brand b{display:block;font-size:12px;font-weight:400;color:var(--text-dim);letter-spacing:3px;margin-top:4px}.admin-nav{display:flex;flex-direction:column;gap:6px}.admin-nav a{display:block;padding:10px 12px;border-radius:8px;border:1px solid transparent;color:var(--text-dim);text-decoration:none;font-size:14px;transition:all .15s}.admin-nav a:hover{color:var(--text);background:#ffffff08}.admin-nav a.active{color:var(--gold);background:#d4af371a;border-color:var(--gold-dim)}.admin-side-foot{margin-top:auto;padding:0 6px;font-size:13px}.admin-side-foot a{color:var(--text-dim);text-decoration:none}.admin-side-foot a:hover{color:var(--gold)}.admin-main{flex:1;min-width:0;padding:22px 26px 48px}.admin-topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap}.admin-page-title{font-size:18px;color:var(--text);letter-spacing:1px}.admin-user{display:flex;align-items:center;gap:12px}.admin-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px;margin-bottom:16px}.admin-toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.admin-input,.admin-select,.admin-textarea{padding:8px 10px;background:var(--panel-2);border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:14px;outline:none;font-family:inherit}.admin-input:focus,.admin-select:focus,.admin-textarea:focus{border-color:var(--gold-dim)}.admin-input::placeholder,.admin-textarea::placeholder{color:#5a5a70}.admin-textarea{resize:vertical;min-height:74px;width:100%}.admin-btn{padding:8px 14px;border-radius:6px;border:1px solid var(--gold-dim);background:linear-gradient(180deg,#2a2410,#1a1608);color:var(--gold);cursor:pointer;font-size:14px;transition:filter .15s}.admin-btn:hover:not(:disabled){filter:brightness(1.18)}.admin-btn:disabled{opacity:.4;cursor:not-allowed}.admin-btn.ghost{border-color:var(--border);background:var(--panel-2);color:var(--text-dim)}.admin-btn.danger{border-color:#7f1d1d;background:linear-gradient(180deg,#2a1010,#190808);color:var(--danger)}.admin-btn.sm{padding:4px 10px;font-size:13px}.admin-table-wrap{overflow-x:auto}.admin-table{width:100%;border-collapse:collapse;font-size:14px}.admin-table th,.admin-table td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap}.admin-table th{color:var(--text-dim);font-weight:500;font-size:13px;background:#ffffff05}.admin-table tbody tr:hover{background:#d4af370a}.admin-table td.wrap{white-space:normal;max-width:320px;word-break:break-all}.admin-actions{display:flex;gap:6px;flex-wrap:wrap}.admin-empty{padding:32px;text-align:center;color:var(--text-dim);font-size:14px}.admin-pager{display:flex;align-items:center;gap:12px;margin-top:14px;color:var(--text-dim);font-size:13px;flex-wrap:wrap}.tag{display:inline-block;padding:1px 8px;border-radius:10px;font-size:12px;border:1px solid var(--border);color:var(--text-dim);line-height:1.7}.tag.gold{color:var(--gold);border-color:var(--gold-dim)}.tag.jade{color:var(--jade);border-color:#15803d}.tag.danger{color:var(--danger);border-color:#7f1d1d}.admin-modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000009e;display:flex;align-items:center;justify-content:center;padding:20px;z-index:1000}.admin-modal{width:100%;max-width:460px;background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:20px}.admin-modal-title{font-size:16px;color:var(--gold);margin-bottom:14px;letter-spacing:1px}.admin-modal-foot{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.admin-field{margin-bottom:12px}.admin-field>label{display:block;font-size:13px;color:var(--text-dim);margin-bottom:6px}.admin-field .admin-input,.admin-field .admin-select{width:100%}.admin-hint{font-size:12px;color:var(--text-dim);margin-top:4px}.admin-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.admin-tabs button{padding:7px 14px;border-radius:999px;border:1px solid var(--border);background:var(--panel-2);color:var(--text-dim);cursor:pointer;font-size:13px}.admin-tabs button.active{color:var(--gold);border-color:var(--gold-dim);background:#d4af371a}.admin-toast{position:fixed;left:50%;top:24px;transform:translate(-50%);background:#000000e0;border:1px solid var(--gold-dim);color:var(--gold);padding:10px 20px;border-radius:8px;z-index:1200;font-size:14px}.admin-toast.err{border-color:#7f1d1d;color:var(--danger)}@media (max-width: 820px){.admin-shell{flex-direction:column}.admin-side{width:auto;height:auto;position:static;flex-direction:row;align-items:center;gap:12px;overflow-x:auto}.admin-nav{flex-direction:row}.admin-brand b{display:none}.admin-side-foot{margin-top:0;margin-left:auto}.admin-main{padding:16px 14px 40px}}