*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
body{font-family:var(--ui-font);font-size:14px;line-height:1.55;background:var(--ui-bg);color:var(--ui-text);display:flex;min-height:100vh;overflow-x:hidden}

/* Sidebar · 可折叠分组（侧栏惯例：一级少、默认收） */
.sidebar{width:var(--sidebar-w);background:#dce9e5;color:#213d34;border-right:1px solid var(--ui-border);display:flex;flex-direction:column;position:fixed;height:100dvh;z-index:100;overflow:hidden}
.sidebar-logo{padding:22px 20px;min-height:78px;display:flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none;color:var(--ui-text)}
.sidebar-logo .logo-icon{width:32px;height:32px;background:var(--primary);color:#fff;border-radius:8px;display:grid;place-items:center;font-size:19px;font-weight:700;flex-shrink:0}
.sidebar-logo .logo-text{font-size:21px;font-weight:700;letter-spacing:.04em;color:var(--ui-text);white-space:nowrap}
.sidebar-nav{flex:1;padding:0 12px 16px;overflow-y:auto;overflow-x:hidden}
.nav-ico{width:18px;height:18px;flex-shrink:0;display:block}
.nav-group-hd .nav-ico{width:18px;height:18px}
/* 字号：组标题/一级 14（与正文一致）；子项 14 略淡——13 偏挤，16 又显臃肿 */
.nav-item{display:flex;align-items:center;gap:10px;min-height:38px;padding:8px 11px;border-radius:6px;cursor:pointer;color:#314e43;font-size:14px;margin-bottom:2px;text-decoration:none;border:0;background:transparent;width:100%;text-align:left;font-family:inherit;line-height:1.4;transition:background .15s,color .15s}
.nav-item:hover{background:#c5dbd3;color:var(--ui-text)}
.nav-item.active{background:var(--primary);color:#fff;font-weight:650}
.nav-item .badge{margin-left:auto;background:var(--ui-danger-soft);color:var(--ui-danger);font-size:12px;padding:1px 6px;border-radius:4px;line-height:18px;flex-shrink:0}
.nav-item.top{margin-bottom:14px}
.nav-group{margin-bottom:10px}
.nav-group-hd{display:flex;align-items:center;gap:10px;width:100%;padding:9px 11px;border:0;border-radius:6px;background:transparent;color:var(--ui-text);font-size:14px;font-weight:650;cursor:pointer;font-family:inherit;text-align:left;line-height:1.4}
.nav-group-hd:hover{background:var(--ui-soft);color:var(--ui-text)}
.nav-group.open>.nav-group-hd,.nav-group.has-active>.nav-group-hd{color:var(--ui-text)}
.nav-group-hd .nav-chev{margin-left:auto;width:14px;height:14px;opacity:.55;transition:transform .18s;flex-shrink:0}
.nav-group.open>.nav-group-hd .nav-chev{transform:rotate(180deg);opacity:.85}
.nav-group-body{display:none;padding:2px 0 0 12px}
.nav-group.open>.nav-group-body{display:block}
.nav-group-body .nav-item{padding:8px 10px 8px 12px;font-size:14px;font-weight:400;color:#314e43}
.nav-group-body .nav-item.active{font-weight:650;color:#fff}
.sidebar-footer{padding:14px 20px;border-top:1px solid var(--ui-border);flex-shrink:0}
/* 旧 sub-nav 兼容（若个别页仍引用） */
.nav-section{display:none}
.sub-nav{display:none}
.sub-item{display:none}

/* Main */
.main{margin-left:var(--sidebar-w);flex:1;min-width:0;min-height:100vh}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:62px;padding:10px 24px;background:#fff;border-bottom:1px solid var(--ui-border);position:sticky;top:0;z-index:50}
.topbar h2{font-size:var(--fs-lg);font-weight:600}
.top-user{position:relative}
.top-user-btn{display:inline-flex;align-items:center;gap:8px;padding:4px 8px;border-radius:6px;border:1px solid transparent;background:transparent;font-size:13px;font-weight:600;color:var(--ui-text);cursor:pointer;max-width:260px}
.top-user-btn:hover{background:#f3f4f6;border-color:#e5e7eb}
.top-avatar{flex:0 0 auto;width:28px;height:28px;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;background:var(--primary-bg);color:var(--primary);font-size:13px;font-weight:700;line-height:1;user-select:none;overflow:hidden;padding:0;border:0;cursor:pointer}
.top-avatar img{width:100%;height:100%;object-fit:cover;display:block}
.top-user-btn .top-user-text{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.top-credits-pill{display:none;font-size:var(--fs-sm);font-weight:600;color:#0f6e56;text-decoration:none;padding:6px 12px;border-radius:999px;background:#e8f5f0;border:1px solid #9dcebf;white-space:nowrap}
.top-credits-pill:hover{filter:brightness(.98)}
.top-credits-pill.low{background:#fff7ed;border-color:#fdba74;color:#9a3412}
.top-user-btn .caret{font-size:10px;opacity:.7;flex:0 0 auto}
.top-user-menu{display:none;position:absolute;right:0;top:calc(100% + 6px);min-width:240px;width:max-content;max-width:calc(100vw - 24px);background:#fff;border:1px solid #e5e7eb;border-radius:10px;box-shadow:0 10px 28px rgba(0,0,0,.12);padding:6px;z-index:80}
.top-user-menu.open{display:block}
.top-user-menu button,.top-user-menu a{display:block;width:auto;min-width:100%;white-space:nowrap;text-align:left;padding:9px 12px;border:none;background:transparent;border-radius:7px;font-size:14px;color:#374151;cursor:pointer;text-decoration:none;box-sizing:border-box}
.top-user-menu button:hover,.top-user-menu a:hover{background:#f3f4f6}
.top-user-menu .sep{height:1px;background:#f0f0f0;margin:4px 0}
.pwd-modal-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:200;align-items:center;justify-content:center;padding:16px}
.pwd-modal-mask.show{display:flex}
.pwd-modal{background:#fff;border-radius:8px;width:400px;max-width:95vw;padding:18px 20px;box-shadow:var(--ui-shadow-dialog)}
.pwd-modal h3{margin:0 0 14px;font-size:16px}
.pwd-modal .form-group{margin-bottom:12px}
.pwd-modal label{display:block;font-size:13px;color:#6b7280;margin-bottom:4px}
.pwd-modal input{width:100%;padding:8px 10px;border:1px solid #d1d5db;border-radius:8px;font-size:14px;box-sizing:border-box}
.pwd-modal .ft{display:flex;justify-content:flex-end;gap:8px;margin-top:14px}
.pwd-modal .ft.col{flex-direction:column;align-items:stretch}
.pwd-modal .ft.col .btn{width:100%}
.pwd-modal p.ask{margin:0 0 4px;font-size:14px;line-height:1.55;color:#334155}
.pwd-modal .msg{font-size:13px;min-height:18px;margin-top:4px;color:#dc2626}
/* 全站主区铺满（2026-08-08 拍板）；个别表单块内部自有 max-width 仍收窄 */
.content{padding:24px 28px 36px;max-width:none;width:100%}