/* ============================================
   XJL ERP Client v2.1 · Product Design System
   ============================================ */
:root {
  --b50:#eff6ff;--b100:#dbeafe;--b200:#bfdbfe;--b300:#93c5fd;--b400:#60a5fa;
  --b500:#3b82f6;--b600:#2563eb;--b700:#1d4ed8;--b800:#1e40af;--b900:#1e3a8a;
  --g50:#f8fafc;--g100:#f1f5f9;--g200:#e2e8f0;--g300:#cbd5e1;--g400:#94a3b8;
  --g500:#64748b;--g600:#475569;--g700:#334155;--g800:#1e293b;--g900:#0f172a;
  --green-50:#f0fdf4;--green-100:#dcfce7;--green-600:#16a34a;--green-700:#15803d;
  --red-50:#fef2f2;--red-100:#fee2e2;--red-600:#dc2626;--red-700:#b91c1c;
  --amber-50:#fffbeb;--amber-100:#fef3c7;--amber-600:#d97706;
  --primary:var(--b600);--primary-hover:var(--b700);--primary-light:var(--b50);
  --bg:var(--g100);--surface:#fff;--border:var(--g200);--border-strong:var(--g300);
  --text:var(--g800);--text-muted:var(--g500);--text-subtle:var(--g400);
  --radius-sm:4px;--radius:6px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;
  --shadow-sm:0 1px 2px rgba(0,0,0,.05);
  --shadow:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
  --shadow-md:0 4px 6px rgba(0,0,0,.05),0 2px 4px rgba(0,0,0,.03);
  --shadow-lg:0 10px 25px rgba(0,0,0,.08);
  --shadow-xl:0 20px 50px rgba(0,0,0,.12);
  --font:"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
  --transition:.15s cubic-bezier(.4,0,.2,1);
}

/* ===== DARK MODE ===== */
html.dark {
  --bg:#0f172a;--surface:#1e293b;--border:#334155;--border-strong:#475569;
  --text:#e2e8f0;--text-muted:#94a3b8;--text-subtle:#64748b;
  --g50:#1e293b;--g100:#1e293b;--g200:#334155;--primary-light:rgba(37,99,235,.15);
  --shadow-sm:0 1px 2px rgba(0,0,0,.3);
  --shadow:0 1px 3px rgba(0,0,0,.4);
  --shadow-md:0 4px 6px rgba(0,0,0,.3);
}
html.dark .tbl-wrap thead th{background:var(--b800)}
html.dark .tbl-wrap tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
html.dark .panel-header{background:rgba(255,255,255,.03)}
html.dark .form-input,.html.dark .form-select,.html.dark .form-textarea{background:var(--surface);color:var(--text);border-color:var(--border-strong)}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:13px;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.5;-webkit-font-smoothing:antialiased}
/* Icon font fallback - prevent raw unicode display */
.material-icons,.fa,.icon,.fa-solid,.fa-regular,.far,.fas,[class*="icon-"],[class*="fa-"]{font-family:'Material Icons','Font Awesome 6 Free','FontAwesome',sans-serif!important}
a{color:var(--primary)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
::-webkit-scrollbar{width:5px;height:5px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--g300);border-radius:3px}
::selection{background:rgba(37,99,235,.15)}

.app-layout{display:grid;grid-template-columns:220px 1fr;min-height:100vh}
.app-sidebar{background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:20}
.app-main{display:flex;flex-direction:column;min-width:0}
.app-navbar{background:var(--surface);border-bottom:1px solid var(--border);height:46px;display:flex;align-items:center;padding:0 20px;gap:14px;flex-shrink:0}
.app-content{padding:20px 24px;flex:1;overflow-y:auto}

.sb-logo{padding:16px 18px;border-bottom:1px solid var(--border);font-weight:700;font-size:15px;color:var(--primary);display:flex;align-items:center;gap:8px}
.sb-logo .ver{font-size:10px;color:var(--text-muted);font-weight:400;margin-left:auto}
.sb-nav{flex:1;overflow-y:auto;padding:6px}
.nav-sec{padding:14px 10px 4px;font-size:10px;font-weight:700;text-transform:uppercase;color:var(--text-subtle);letter-spacing:.07em}
.nav-item{display:flex;align-items:center;gap:9px;padding:7px 10px;border-radius:var(--radius);color:var(--text-muted);cursor:pointer;transition:all var(--transition);font-size:12px;margin:1px 0;border-left:3px solid transparent;position:relative}
.nav-item:hover{background:var(--primary-light);color:var(--primary)}
.nav-item.active{background:var(--primary-light);color:var(--primary);font-weight:600;border-left-color:var(--primary)}
.nav-item svg{width:17px;height:17px;flex-shrink:0;opacity:.5}
.nav-item.active svg,.nav-item:hover svg{opacity:1}
.sb-footer{padding:10px 14px;border-top:1px solid var(--border);font-size:9px;color:var(--text-subtle);text-align:center}

.navbar-breadcrumb{font-size:14px;font-weight:600;flex:1;display:flex;align-items:center;gap:8px}
.navbar-actions{display:flex;align-items:center;gap:12px}
.navbar-time{font-size:11px;color:var(--text-muted)}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;cursor:pointer;position:relative}
.avatar-dropdown{display:none;position:absolute;top:38px;right:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);min-width:140px;z-index:200;overflow:hidden}
.avatar-dropdown.show{display:block}
.avatar-dropdown div{padding:8px 14px;font-size:12px;cursor:pointer;transition:background var(--transition)}
.avatar-dropdown div:hover{background:var(--g50)}

.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-bottom:18px}
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px 18px;position:relative;overflow:hidden;transition:box-shadow var(--transition)}
.stat-card:hover{box-shadow:var(--shadow-md)}
.stat-card::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:32px;background:var(--primary);border-radius:0 3px 3px 0}
.stat-card.green::before{background:var(--green-600)}
.stat-card.amber::before{background:var(--amber-600)}
.stat-card .label{font-size:10px;color:var(--text-muted);margin-bottom:5px;font-weight:500;text-transform:uppercase;letter-spacing:.04em}
.stat-card .value{font-size:26px;font-weight:800;color:var(--text);line-height:1.1;letter-spacing:-0.02em}
.stat-card .sub{font-size:10px;color:var(--text-muted);margin-top:4px}

.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);margin-bottom:18px;overflow:hidden}
.panel-header{padding:12px 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--g50)}
.panel-title{font-weight:600;font-size:13px}
.panel-body{padding:18px}
.panel-footer{padding:10px 18px;border-top:1px solid var(--border);background:var(--g50);font-size:11px;color:var(--text-muted)}

.btn{font-size:12px;padding:6px 14px;border-radius:var(--radius);font-weight:500;cursor:pointer;border:1px solid transparent;transition:all var(--transition);display:inline-flex;align-items:center;gap:5px;white-space:nowrap;line-height:1.4}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover);box-shadow:0 2px 8px rgba(37,99,235,.25)}
.btn-secondary{background:var(--surface);color:var(--text);border-color:var(--border-strong)}
.btn-secondary:hover{background:var(--g50);border-color:var(--primary);color:var(--primary)}
.btn-danger{background:var(--red-600);color:#fff}
.btn-danger:hover{background:var(--red-700)}
.btn-sm{padding:4px 10px;font-size:11px}
.btn-xs{padding:2px 7px;font-size:10px;border-radius:3px}
.btn:disabled{opacity:.5;pointer-events:none;cursor:not-allowed}
.btn-group{display:flex;gap:0}
.btn-group .btn{border-radius:0}
.btn-group .btn:first-child{border-radius:var(--radius) 0 0 var(--radius)}
.btn-group .btn:last-child{border-radius:0 var(--radius) var(--radius) 0}

.form-group{margin-bottom:14px}
.form-label{display:block;font-size:11px;font-weight:600;color:var(--text-muted);margin-bottom:4px;text-transform:uppercase;letter-spacing:.03em}
.form-input,.form-select,.form-textarea{width:100%;border:1px solid var(--border-strong);border-radius:var(--radius);padding:8px 10px;font-size:13px;color:var(--text);background:var(--surface);transition:border-color var(--transition),box-shadow var(--transition);outline:none}
.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.1)}
.form-input:disabled,.form-select:disabled{background:var(--g100);opacity:.6}
.form-input::placeholder{color:var(--text-subtle)}
.form-textarea{resize:vertical;min-height:60px}
.form-hint{font-size:10px;color:var(--text-muted);margin-top:3px}
.form-error{font-size:10px;color:var(--red-600);margin-top:3px}
.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.inline-form{display:flex;align-items:center;gap:8px;flex-wrap:wrap}

/* Search dropdown */
.search-dropdown{position:absolute;top:100%;left:0;right:0;background:var(--surface);border:1px solid var(--border);border-radius:0 0 var(--radius) var(--radius);max-height:220px;overflow-y:auto;z-index:50;box-shadow:var(--shadow-lg)}
.search-dropdown div{padding:7px 10px;cursor:pointer;font-size:12px;border-bottom:1px solid var(--g100);transition:background var(--transition)}
.search-dropdown div:hover{background:var(--primary-light);color:var(--primary)}

.spinner-sm{display:inline-block;width:14px;height:14px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .5s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.tbl-wrap table{width:100%;border-collapse:collapse;font-size:12px}
.tbl-wrap thead th{background:var(--b600);color:#fff;font-weight:600;font-size:10px;text-transform:uppercase;letter-spacing:.04em;text-align:left;padding:9px 10px;white-space:nowrap}
.tbl-wrap thead th:first-child{border-radius:var(--radius) 0 0 0}
.tbl-wrap thead th:last-child{border-radius:0 var(--radius) 0 0}
.tbl-wrap tbody td{padding:8px 10px;border-bottom:1px solid var(--g100);white-space:nowrap}
.tbl-wrap tbody tr{transition:background var(--transition);cursor:pointer}
.tbl-wrap tbody tr:hover{background:var(--primary-light)}
.tbl-wrap tbody tr:nth-child(even){background:var(--g50)}
.tbl-wrap tbody tr:nth-child(even):hover{background:var(--primary-light)}
.tbl-wrap tbody tr.selected{background:rgba(37,99,235,.08)}
.cell-id{color:var(--primary);font-weight:500}
.cell-id:hover{text-decoration:underline}
.cell-money{font-weight:600}

.badge{font-size:10px;padding:2px 8px;border-radius:10px;font-weight:500}
.badge-green{background:var(--green-100);color:var(--green-700)}
.badge-red{background:var(--red-100);color:var(--red-700)}
.badge-amber{background:var(--amber-100);color:var(--amber-600)}
.badge-blue{background:var(--primary-light);color:var(--primary)}
.badge-gray{background:var(--g100);color:var(--text-muted)}

.modal-overlay{position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:300;display:flex;align-items:flex-start;justify-content:center;padding-top:5vh;animation:fadeIn .15s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.modal-box{background:var(--surface);border-radius:var(--radius-xl);width:800px;max-width:92vw;max-height:85vh;overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-xl);animation:slideUp .2s ease}
@keyframes slideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.modal-header{padding:14px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;background:var(--g50);flex-shrink:0}
.modal-header .title{font-weight:600;font-size:14px}
.modal-close{width:28px;height:28px;border-radius:50%;border:none;background:transparent;cursor:pointer;font-size:18px;color:var(--text-muted);transition:all var(--transition);display:flex;align-items:center;justify-content:center;line-height:1}
.modal-close:hover{background:var(--g200);color:var(--text)}
.modal-body{padding:20px;overflow-y:auto;flex:1}
.modal-footer{padding:12px 20px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px;background:var(--g50);flex-shrink:0}

#toast-container{position:fixed;top:16px;right:16px;z-index:400;display:flex;flex-direction:column;gap:8px;pointer-events:none}
.toast{padding:10px 16px;border-radius:var(--radius);font-size:12px;font-weight:500;box-shadow:var(--shadow-lg);animation:slideLeft .25s ease;max-width:360px;display:flex;align-items:center;gap:8px;pointer-events:auto}
@keyframes slideLeft{from{opacity:0;transform:translateX(40px)}to{opacity:1;transform:translateX(0)}}
.toast-success{background:#ecfdf5;color:var(--green-700);border:1px solid #a7f3d0}
.toast-error{background:var(--red-50);color:var(--red-700);border:1px solid #fecaca}
.toast-info{background:var(--primary-light);color:var(--primary);border:1px solid var(--b200)}

.skeleton{background:linear-gradient(90deg,var(--g200) 25%,var(--g100) 50%,var(--g200) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius)}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}
.sk-line{height:14px;margin-bottom:8px}.sk-line.w80{width:80%}.sk-line.w60{width:60%}.sk-line.w40{width:40%}
.sk-card{height:80px;border-radius:var(--radius-lg)}

.pgn{display:flex;align-items:center;justify-content:space-between;padding:8px 0;font-size:11px;color:var(--text-muted)}
.pgn-btns{display:flex;gap:4px}
.pgn-btns button{padding:4px 10px;border:1px solid var(--border-strong);border-radius:3px;background:var(--surface);cursor:pointer;font-size:11px;transition:all var(--transition)}
.pgn-btns button:hover{border-color:var(--primary);color:var(--primary)}
.pgn-btns button.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.pgn-btns button:disabled{opacity:.3;pointer-events:none}

.search-box{display:flex;align-items:center;border:1px solid var(--border-strong);border-radius:var(--radius);overflow:hidden;transition:all var(--transition)}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.1)}
.search-box input{border:none;padding:7px 10px;font-size:12px;outline:none;background:transparent;width:180px;color:var(--text)}
.search-box input::placeholder{color:var(--text-subtle)}

.empty{text-align:center;padding:50px 20px;color:var(--text-muted)}
.empty svg{width:48px;height:48px;margin:0 auto 12px;opacity:.3;display:block}
.empty h3{font-size:15px;color:var(--text);margin-bottom:4px}
.empty p{font-size:12px}

.charts-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:18px}
.chart-box{padding:10px}
.chart-box canvas{max-height:280px}

.items-table{width:100%;border-collapse:collapse;font-size:12px}
.items-table th{background:var(--g50);font-weight:600;font-size:10px;text-transform:uppercase;letter-spacing:.04em;padding:7px 8px;text-align:left;border-bottom:2px solid var(--border-strong)}
.items-table td{padding:4px 6px;border-bottom:1px solid var(--border)}
.items-table td input,.items-table td select{width:100%;border:1px solid var(--border-strong);border-radius:3px;padding:5px 6px;font-size:12px;background:var(--surface);color:var(--text)}
.items-table td input:focus,.items-table td select:focus{border-color:var(--primary);outline:none}
.items-table .rm-btn{color:var(--red-600);cursor:pointer;font-weight:700;font-size:16px;padding:0 4px;line-height:1;background:none;border:none}
.items-table .rm-btn:hover{opacity:.7}

.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#eff6ff 0%,#e0e7ff 50%)}
.login-card{background:var(--surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);padding:40px 36px;width:380px;max-width:90vw}
.login-card h1{font-size:24px;font-weight:800;color:var(--text);text-align:center;margin-bottom:4px;letter-spacing:-.03em}
.login-card .sub{text-align:center;font-size:12px;color:var(--text-muted);margin-bottom:24px}
.login-card .form-input{margin-bottom:12px;padding:10px 14px;font-size:14px}
.login-card .btn{width:100%;justify-content:center;padding:10px;font-size:14px;margin-top:6px}
.login-error{color:var(--red-600);font-size:11px;text-align:center;margin-top:10px;min-height:18px}

.bulk-bar{background:var(--primary);color:#fff;padding:8px 16px;border-radius:var(--radius);margin-bottom:12px;display:none;align-items:center;gap:12px;font-size:12px}
.bulk-bar.show{display:flex}
.bulk-bar .btn{background:rgba(255,255,255,.15);color:#fff;border-color:rgba(255,255,255,.3)}
.bulk-bar .btn:hover{background:rgba(255,255,255,.25)}

/* Filter Bar */
.filter-bar{padding:12px 18px;border-bottom:1px solid var(--border);background:var(--g50);animation:slideDown .15s ease}
@keyframes slideDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.filter-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px;margin-bottom:10px}
.filter-group{position:relative}
.filter-group label{display:block;font-size:10px;font-weight:600;color:var(--text-muted);margin-bottom:3px;text-transform:uppercase;letter-spacing:.03em}
.filter-input{width:100%;border:1px solid var(--border-strong);border-radius:var(--radius-sm);padding:6px 8px;font-size:12px;background:var(--surface);color:var(--text)}
.filter-input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 2px rgba(37,99,235,.1)}
.filter-checks{display:flex;flex-wrap:wrap;gap:4px 10px;padding-top:2px}
.filter-check{display:inline-flex;align-items:center;gap:3px;font-size:11px;cursor:pointer;white-space:nowrap}
.filter-check input{margin:0;accent-color:var(--primary)}
.filter-status-group{grid-column:1/-1}
.filter-actions{display:flex;gap:8px;justify-content:flex-end}
.filter-dd{position:absolute;top:100%;left:0;right:0;background:var(--surface);border:1px solid var(--border);border-radius:0 0 var(--radius) var(--radius);max-height:180px;overflow-y:auto;z-index:50;box-shadow:var(--shadow-lg);font-size:12px}
.filter-dd div{padding:6px 10px;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:background var(--transition)}
.filter-dd div:hover{background:var(--primary-light);color:var(--primary)}

.menu-btn{display:none;background:none;border:none;cursor:pointer;padding:4px}
.menu-btn span{display:block;width:18px;height:2px;background:var(--text);margin:3px 0;border-radius:1px}
.sb-overlay{display:none}

kbd{display:inline-block;padding:1px 5px;font-size:10px;font-family:monospace;background:var(--g100);border:1px solid var(--border-strong);border-radius:3px}

/* Dark mode toggle */
.dark-toggle{background:none;border:1px solid var(--border-strong);border-radius:var(--radius);padding:5px 8px;cursor:pointer;font-size:14px;transition:all var(--transition)}
.dark-toggle:hover{background:var(--g100)}

/* Responsive */
@media(max-width:991px){
  .app-content{padding:14px 16px}
  .charts-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr);gap:8px}
  .stat-card .value{font-size:22px}
}
@media(max-width:767px){
  .app-layout{grid-template-columns:1fr}
  .app-sidebar{position:fixed;left:-230px;top:0;bottom:0;width:230px;transition:left .25s ease;box-shadow:2px 0 15px rgba(0,0,0,.1);z-index:50}
  .app-sidebar.mobile-open{left:0}
  .sb-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:49}
  .sb-overlay.show{display:block}
  .menu-btn{display:flex!important}
  .app-content{padding:8px}
  .app-navbar{padding:0 8px}
  .stats{grid-template-columns:1fr 1fr;gap:6px}
  .stat-card{padding:10px 12px}.stat-card .value{font-size:18px}.stat-card .label{font-size:9px}
  .tbl-wrap thead th,.tbl-wrap tbody td{padding:4px 5px;font-size:10px}
  .tbl-wrap thead th{font-size:9px}
  .search-box input{width:100px;font-size:11px}
  .search-box{padding:0}
  .form-row{grid-template-columns:1fr}
  .modal-box{max-width:97vw;max-height:90vh;border-radius:var(--radius-md)}
  .modal-overlay{padding-top:5px}
  .modal-body{padding:12px}
  .panel-header{flex-wrap:wrap;gap:6px;padding:8px 10px}
  .panel-title{font-size:12px}
  .inline-form{gap:4px}
  .inline-form .btn{padding:4px 8px;font-size:10px}
  .filter-row{grid-template-columns:1fr 1fr;gap:6px}
  .filter-bar{padding:8px 10px}
  .filter-group label{font-size:9px}
  .filter-input{padding:4px 6px;font-size:11px}
  .filter-check{font-size:10px}
  .filter-checks{gap:2px 6px}
  .login-card{padding:24px 20px}
  .login-card h1{font-size:20px}
  .items-table td input,.items-table td select{padding:3px 4px;font-size:11px}
  .avatar{width:28px;height:28px;font-size:11px}
  .navbar-time{display:none}
  /* Larger touch targets */
  .nav-item{padding:10px 12px;font-size:13px}
  .btn{padding:7px 12px;min-height:32px}
  .btn-sm{padding:5px 8px;min-height:28px}
  .btn-xs{padding:3px 6px;min-height:24px}
  .toast{max-width:300px;font-size:11px}
}
@media(min-width:768px) and (max-width:1024px){
  /* Tablet / Fold unfolded */
  .app-layout{grid-template-columns:200px 1fr}
  .app-content{padding:16px 20px}
  .search-box input{width:140px}
}
@media print{
  .app-sidebar,.app-navbar,.btn,.modal-overlay,#toast-container{display:none!important}
  .app-layout{grid-template-columns:1fr}
  .app-content{padding:0}
  .panel{border:none;box-shadow:none;break-inside:avoid}
  body{background:#fff}
}


/* ========================================
   增强移动端适配 - Samsung W25 Fold & 通用手机
   ======================================== */

/* 小屏手机 (< 400px) */
@media (max-width: 400px) {
  .app-content { padding: 8px 10px; }
  .stats { grid-template-columns: 1fr; gap: 6px; }
  .stat-card { padding: 10px; }
  .stat-card .value { font-size: 18px; }
  .stat-card .label { font-size: 11px; }
  .panel { margin: 6px 0; }
  .panel-header { padding: 10px 12px; flex-wrap: wrap; gap: 6px; }
  .panel-title { font-size: 13px; }
  .tbl-wrap { font-size: 11px; }
  .tbl-wrap th, .tbl-wrap td { padding: 6px 4px; }
  .form-row { grid-template-columns: 1fr !important; }
  .form-group { margin-bottom: 10px; }
  .form-input, .form-select { font-size: 14px; padding: 8px 10px; }
  .btn { padding: 8px 12px; font-size: 12px; }
  .btn-sm { padding: 5px 8px; font-size: 11px; }
  .modal-box { width: 98vw !important; max-width: 98vw !important; margin: 5px; }
  .modal-header { padding: 10px 12px; }
  .modal-body { padding: 12px; }
  .items-table { font-size: 11px; }
  .items-table input { font-size: 12px; padding: 5px; }
  .search-box input { width: 120px; font-size: 12px; }
  .inline-form { gap: 4px; }
  .pgn { font-size: 11px; padding: 8px; }
  .pgn-btns button { padding: 4px 8px; font-size: 11px; }
  .bulk-bar { font-size: 11px; padding: 6px 10px; }
  .bulk-bar .btn { padding: 4px 8px; font-size: 10px; }
  .login-card { width: 95vw; padding: 20px 15px; }
  .login-card h1 { font-size: 20px; }
  .login-card .sub { font-size: 11px; }
  .navbar-breadcrumb { font-size: 13px; }
  .navbar-time { display: none; }
  .avatar { width: 28px; height: 28px; font-size: 12px; }
}

/* 普通手机 (400px - 767px) */
@media (max-width: 767px) {
  /* 侧边栏优化 */
  .app-sidebar { width: 260px; left: -260px; }
  .app-sidebar.mobile-open { left: 0; }
  .sb-logo { font-size: 16px; padding: 14px 16px; }
  .sb-nav { padding: 8px 0; }
  .nav-item { padding: 10px 16px; font-size: 13px; }
  .nav-item svg { width: 18px; height: 18px; margin-right: 10px; }
  .nav-sec { font-size: 10px; padding: 8px 16px 4px; }
  
  /* 主内容区 */
  .app-main { margin-left: 0; }
  .app-navbar { padding: 10px 12px; }
  .menu-btn { display: flex; }
  
  /* 表格横向滚动 */
  .tbl-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .tbl-wrap table { min-width: 600px; }
  .tbl-wrap th, .tbl-wrap td { white-space: nowrap; }
  
  /* 表单优化 */
  .form-row { grid-template-columns: 1fr !important; gap: 0; }
  .form-group { margin-bottom: 12px; }
  .form-label { font-size: 12px; margin-bottom: 4px; }
  .form-input, .form-select, .form-textarea { 
    font-size: 15px; /* 防止iOS自动缩放 */
    padding: 10px 12px;
  }
  
  /* 模态框全屏 */
  .modal-overlay { padding: 10px; }
  .modal-box { 
    width: 100% !important; 
    max-width: 100% !important; 
    max-height: 90vh;
    overflow-y: auto;
  }
  .modal-header { padding: 12px 16px; }
  .modal-body { padding: 16px; }
  .modal-footer { padding: 12px 16px; }
  
  /* 图表自适应 */
  .charts-grid { grid-template-columns: 1fr !important; }
  .chart-box { height: 200px; }
  
  /* 统计卡片 */
  .stats { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .stat-card { padding: 12px; }
  .stat-card .value { font-size: 20px; }
  .stat-card .label { font-size: 11px; }
  .stat-card .sub { font-size: 10px; }
  
  /* 按钮组 */
  .inline-form { flex-wrap: wrap; gap: 6px; }
  .inline-form .search-box { flex: 1; min-width: 120px; }
  .inline-form .btn { flex-shrink: 0; }
  
  /* 分页 */
  .pgn { flex-wrap: wrap; gap: 6px; }
  .pgn-btns { flex-wrap: wrap; }
  
  /* 批量操作栏 */
  .bulk-bar { flex-wrap: wrap; gap: 6px; }
  .bulk-bar .btn { font-size: 11px; }
  
  /* 筛选栏 */
  .filter-bar { padding: 10px; }
  .filter-row { grid-template-columns: 1fr !important; }
  .filter-group { margin-bottom: 8px; }
  .filter-checks { flex-wrap: wrap; gap: 4px; }
  .filter-check { font-size: 11px; }
  
  /* Toast提示 */
  #toast-container { 
    left: 10px; right: 10px; 
    bottom: 10px;
    max-width: none;
  }
  .toast { font-size: 12px; padding: 10px 12px; }
  
  /* 空状态 */
  .empty { padding: 30px 20px; }
  .empty h3 { font-size: 16px; }
  .empty p { font-size: 13px; }
  
  /* 骨架屏 */
  .skeleton { border-radius: 8px; }
  
  /* 登录页 */
  .login-page { padding: 20px; }
  .login-card { padding: 24px 20px; }
  .login-card h1 { font-size: 22px; margin-bottom: 4px; }
  .login-card .sub { font-size: 12px; margin-bottom: 20px; }
  .login-card .form-input { font-size: 15px; padding: 12px; }
  .login-card .btn { padding: 12px; font-size: 14px; }
  .login-error { font-size: 12px; }
  
  /* 单元格样式 */
  .cell-id { font-size: 11px; max-width: 100px; overflow: hidden; text-overflow: ellipsis; }
  .cell-money { font-size: 12px; white-space: nowrap; }
  
  /* 徽章 */
  .badge { font-size: 10px; padding: 2px 6px; }
  
  /* 明细表格 */
  .items-table th, .items-table td { padding: 6px 4px; }
  .items-table input { font-size: 13px; padding: 6px 8px; }
  .items-table .rm-btn { font-size: 18px; }
  
  /* 快捷键提示隐藏 */
  kbd { display: none; }
}

/* Samsung W25 Fold 折叠屏特殊适配 */
@media (min-width: 768px) and (max-width: 900px) {
  /* 折叠状态 - 类似手机 */
  .app-sidebar { width: 240px; left: -240px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .charts-grid { grid-template-columns: 1fr; }
  .tbl-wrap table { min-width: 500px; }
}

@media (min-width: 901px) and (max-width: 1024px) {
  /* 展开状态 - 类似平板 */
  .app-layout { grid-template-columns: 220px 1fr; }
  .stats { grid-template-columns: repeat(4, 1fr); }
  .charts-grid { grid-template-columns: repeat(2, 1fr); }
  .app-content { padding: 16px 20px; }
  .tbl-wrap table { min-width: 700px; }
}

/* 防止横屏时字体过大 */
@media (max-height: 500px) and (orientation: landscape) {
  .login-card { padding: 15px; }
  .login-card h1 { font-size: 18px; }
  .stats { grid-template-columns: repeat(4, 1fr); }
  .chart-box { height: 180px; }
}

/* 触摸优化 - 增大点击区域 */
@media (hover: none) and (pointer: coarse) {
  .btn { min-height: 36px; }
  .btn-sm { min-height: 30px; }
  .nav-item { min-height: 44px; }
  .form-input, .form-select { min-height: 40px; }
  .tbl-wrap td .btn-xs { min-height: 26px; padding: 4px 8px; }
  .modal-close { min-width: 36px; min-height: 36px; }
  .rm-btn { min-width: 30px; min-height: 30px; }
}

/* 安全区域适配 (iPhone刘海屏、Fold边缘) */
@supports (padding: max(0px)) {
  .login-page { padding-top: max(20px, env(safe-area-inset-top)); }
  .app-navbar { padding-top: max(10px, env(safe-area-inset-top)); }
  .app-content { padding-bottom: max(20px, env(safe-area-inset-bottom)); }
  .bulk-bar { padding-bottom: max(10px, env(safe-area-inset-bottom)); }
}

/* 暗色模式移动端优化 */
@media (max-width: 767px) {
  .dark .app-sidebar { box-shadow: 2px 0 15px rgba(0,0,0,.5); }
  .dark .modal-overlay { background: rgba(0,0,0,.7); }
  .dark .toast { box-shadow: 0 4px 12px rgba(0,0,0,.4); }
}

/* 打印优化 */
@media print {
  .app-sidebar, .app-navbar, .btn, .modal-overlay, #toast-container, .bulk-bar { 
    display: none !important; 
  }
  .app-layout { grid-template-columns: 1fr; }
  .app-content { padding: 0; }
  .panel { border: none; box-shadow: none; break-inside: avoid; }
  .tbl-wrap { overflow: visible; }
  .tbl-wrap table { min-width: auto; }
  body { background: #fff; font-size: 12px; }
}