:root{--bg: #f6f7f9;--bg-deep: #eef0f4;--surface: #ffffff;--surface-2: #f4f5f8;--surface-3: #eceef3;--ink: #14161a;--ink-soft: #5b616e;--ink-faint: #9aa1ad;--line: #e9ebf0;--line-strong: #dcdfe6;--brand: #ff5a1f;--brand-strong: #e8480f;--brand-soft: #fff1ea;--brand-tint: #ffe4d6;--brand-grad: linear-gradient(135deg, #ff7a45 0%, #ff4d0f 100%);--violet: #6d5efc;--violet-soft: #efedff;--ok: #12a150;--ok-soft: #e7f6ee;--danger: #e5484d;--danger-soft: #fdecec;--warn: #b7791f;--warn-soft: #fdf3e2;--radius-xl: 28px;--radius-lg: 20px;--radius: 14px;--radius-sm: 10px;--radius-full: 999px;--shadow-xs: 0 1px 2px rgba(16, 24, 40, .04);--shadow-sm: 0 1px 2px rgba(16, 24, 40, .05), 0 2px 8px -2px rgba(16, 24, 40, .06);--shadow-md: 0 12px 32px -12px rgba(16, 24, 40, .16), 0 2px 8px -2px rgba(16, 24, 40, .05);--shadow-lg: 0 32px 72px -28px rgba(16, 24, 40, .24), 0 4px 16px -6px rgba(16, 24, 40, .06);--sans: "PingFang SC-regular", "PingFang SC", -apple-system, BlinkMacSystemFont, "Helvetica Neue", 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.08s}.btn:hover{background:var(--surface-2);border-color:var(--line-strong);color:var(--ink)}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}.btn:disabled:hover{background:var(--surface);color:var(--ink);border-color:var(--line-strong)}.btn.primary{background:var(--brand-grad);border-color:transparent;color:#fff;box-shadow:0 10px 24px -10px #ff5a1f8c}.btn.primary:hover{color:#fff;filter:brightness(1.06);background:var(--brand-grad);border-color:transparent}.btn.primary:disabled:hover{color:#fff}.btn.cobalt{background:var(--brand-grad);border-color:transparent;color:#fff;box-shadow:0 10px 24px -10px #ff5a1f8c}.btn.cobalt:hover{color:#fff;filter:brightness(1.06);border-color:transparent}.btn.danger{border-color:#e5484d66;color:var(--danger);background:var(--surface);box-shadow:none}.btn.danger:hover{background:var(--danger);border-color:var(--danger);color:#fff}.btn.ghost{background:transparent;border-color:var(--line-strong);box-shadow:none;color:var(--ink-soft)}.btn.ghost:hover{color:var(--ink);border-color:var(--ink-faint);background:var(--surface)}.btn.sm{padding:6px 14px;font-size:14px}.btn.block{width:100%}.field{display:flex;flex-direction:column;gap:7px}.field>label{font-size:14px;font-weight:600;color:var(--ink-soft);letter-spacing:.02em}.input,.select,.textarea{width:100%;padding:11px 14px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--surface);outline:none;transition:border-color .16s,box-shadow .16s,background 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b{font-size:16px;font-weight:700;font-family:var(--mono)}.user-chip{display:flex;align-items:center;gap:9px;padding-left:4px}.user-chip .avatar{width:32px;height:32px;border-radius:var(--radius-full);display:grid;place-items:center;background:var(--violet-soft);color:var(--violet);font-weight:700;font-size:15px}.user-meta{display:flex;flex-direction:column;line-height:1.15}.user-meta b{font-size:14.5px;font-weight:700;max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-meta i{font-style:normal;font-size:12.5px;color:var(--ink-faint);font-family:var(--mono)}.app-announce{background:var(--warn-soft);border-bottom:1px solid #f2e2c4;color:var(--warn);font-size:14.5px;text-align:center;padding:8px 24px}.app-content{width:100%;max-width:1560px;margin:0 auto;padding:32px 24px 80px;flex:1}.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:26px;flex-wrap:wrap}.page-head 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