:root{--bg:#f4f6fa;--panel:#fff;--line:#dfe5ef;--text:#172033;--muted:#687086;--blue:#1769ff;--green:#148a5b;--red:#d33b3b;--amber:#a66b00}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,"Microsoft YaHei",sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer}
.login{min-height:100vh;display:grid;place-items:center;padding:24px}.login-box{width:min(420px,100%);background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:28px;box-shadow:0 20px 60px rgba(23,32,51,.12)}.login-box h1{margin:0 0 6px;font-size:24px}.login-box p{margin:0 0 22px;color:var(--muted)}
.field{display:grid;gap:7px;margin-bottom:14px}.field span{font-size:13px;color:var(--muted)}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:6px;background:#fff;padding:10px 11px;color:var(--text)}textarea{resize:vertical;min-height:88px}
.btn{border:1px solid var(--line);background:#fff;border-radius:6px;padding:9px 12px;color:var(--text)}.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}.btn.danger{color:#fff;background:var(--red);border-color:var(--red)}.btn.ghost{background:transparent}.btn:disabled{opacity:.45;cursor:not-allowed}
.shell{min-height:100vh;display:grid;grid-template-columns:232px 1fr}.side{background:#101828;color:#fff;padding:18px 14px}.brand{font-weight:700;font-size:18px;margin:4px 8px 22px}.nav button{width:100%;text-align:left;margin:3px 0;background:transparent;color:#d4d9e7;border:0;border-radius:6px;padding:10px}.nav button.active,.nav button:hover{background:#24314a;color:#fff}.main{padding:22px;min-width:0}.top{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:18px}.top h1{margin:0;font-size:24px}.top small{color:var(--muted)}
.toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}.select-all{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);padding:0 5px}.select-all input,.code-check{width:auto}.grid{display:grid;grid-template-columns:1.45fr .9fr;gap:16px}.codes-grid{grid-template-columns:minmax(300px,.55fr) minmax(680px,1.45fr)}.editor-panel{min-width:0}.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:16px}.panel h2{font-size:16px;margin:0 0 12px}.cards{display:grid;gap:7px}.card{border:1px solid var(--line);border-radius:7px;padding:10px;background:#fff;display:grid;grid-template-columns:auto 28px minmax(180px,1fr) auto auto;gap:10px;align-items:center;cursor:pointer}.card:hover{border-color:#aebbd1;background:#fbfcff}.code-index{display:grid;place-items:center;width:26px;height:26px;border-radius:5px;background:#eef2f7;color:#4d566b;font-size:12px;font-weight:700}.code-info{min-width:0}.title{font-weight:700}.meta{font-size:12px;color:var(--muted)}.tags{display:flex;gap:5px;flex-wrap:wrap;margin-top:4px}.tag{font-size:12px;background:#eef2f7;border:1px solid #dce4ef;border-radius:999px;padding:2px 6px}.status{font-size:12px;border-radius:999px;padding:3px 7px;background:#e8f6ef;color:var(--green);white-space:nowrap}.status.off{background:#fff1f0;color:var(--red)}.compact-stats{display:flex;gap:12px;color:var(--muted);font-size:12px;white-space:nowrap}.compact-stats b{color:var(--text);font-size:14px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.stat{border:1px solid var(--line);border-radius:8px;padding:10px;background:#fbfcff}.stat b{display:block;font-size:22px}.stat span{font-size:12px;color:var(--muted)}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.full{grid-column:1/-1}.actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.code-workspace{margin:-16px}.workspace-tabs{height:48px;display:flex;justify-content:center;gap:12px;border-bottom:1px solid var(--line);background:#fff}.workspace-tab{border:0;background:transparent;padding:0 14px;color:var(--muted);font-weight:700;border-bottom:2px solid transparent}.workspace-tab.active{color:var(--blue);border-bottom-color:var(--blue)}.workspace-body{display:grid;grid-template-columns:minmax(0,1fr) 250px;min-height:630px;background:#f5f7fb}.workspace-main{padding:16px}.workspace-pane{display:none;background:#fff;border:1px solid var(--line);min-height:595px;padding:18px}.workspace-pane.active{display:block}.editor-title input{border:0;border-bottom:1px solid var(--line);border-radius:0;text-align:center;font-size:22px;font-weight:700;padding:15px}.content-type-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;margin:16px 0}.content-type-bar button{border:1px solid var(--line);background:#fff;border-radius:6px;padding:9px 5px;color:var(--muted)}.content-type-bar button.active{border-color:var(--blue);color:var(--blue);background:#eef5ff}.content-editor{border-top:1px solid var(--line);padding-top:16px}.content-editor textarea{min-height:220px}.workspace-side{padding:16px 14px;border-left:1px solid var(--line);background:#eef1f5;display:flex;flex-direction:column;gap:12px}.qr-stage{display:grid;place-items:center;background:#fff;border:1px solid var(--line);min-height:230px;padding:14px}.qr-stage img{width:200px;height:200px}.qr-placeholder{width:190px;height:190px;display:grid;place-items:center;align-content:center;gap:8px;background:#fafbfc;color:#b4bac5}.qr-placeholder b{font-size:22px}.qr-placeholder span{font-size:12px}.workspace-save{width:100%;padding:11px}.workspace-links{display:grid;grid-template-columns:1fr 1fr;gap:7px}.workspace-links .btn{text-align:center;padding:8px 4px}.side-options{background:#fff;border:1px solid var(--line)}.side-options button{display:flex;justify-content:space-between;width:100%;border:0;border-bottom:1px solid var(--line);background:#fff;padding:12px;text-align:left}.side-options button:last-child{border-bottom:0}.settings-block{border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:16px}.settings-block h3{font-size:15px;margin:0 0 12px}.qr-settings{display:grid;grid-template-columns:1fr 1fr;gap:10px}.page-preview{max-width:600px;margin:auto}.preview-browser-title{font-size:12px;color:var(--muted);border:1px solid var(--line);border-bottom:0;padding:8px;background:#f5f7fb}.preview-page{min-height:470px;border:1px solid var(--line);padding:24px;background:#fff}.preview-page h2{margin-top:0}.content-image-preview{display:block;max-width:100%;height:auto;object-fit:contain}.preview-text{white-space:pre-wrap;line-height:1.75}.preview-empty{display:grid;place-items:center;min-height:160px;color:var(--muted);border:1px dashed var(--line)}.table{width:100%;border-collapse:collapse}.table th,.table td{text-align:left;border-bottom:1px solid var(--line);padding:10px;font-size:14px;vertical-align:top;word-break:break-word}.table .meta{max-width:420px}.perms{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.check{display:flex;gap:8px;align-items:center;border:1px solid var(--line);border-radius:6px;padding:8px}.check input{width:auto}.notice{padding:10px 12px;border:1px solid #f1d38a;background:#fff8e8;color:#694400;border-radius:6px;margin-bottom:12px}.empty{color:var(--muted);padding:18px;text-align:center}.hidden{display:none!important}
@media(max-width:900px){.shell{grid-template-columns:1fr}.side{position:sticky;top:0;z-index:2}.nav{display:flex;overflow:auto}.nav button{white-space:nowrap}.grid{grid-template-columns:1fr}.form-grid,.qr-settings{grid-template-columns:1fr}.workspace-body{grid-template-columns:1fr}.workspace-side{border-left:0;border-top:1px solid var(--line)}.stats{grid-template-columns:1fr 1fr}.top{align-items:flex-start;flex-direction:column}.card{grid-template-columns:auto 28px minmax(0,1fr) auto}.compact-stats{grid-column:3/-1;white-space:normal}.status{grid-column:4;grid-row:1}}