:root {
  --primary: #165DFF;
  --primary-light: #4080FF;
  --green: #00B42A;
  --success: #00B42A;
  --warning: #FF7D00;
  --error: #F53F3F;
  --text: #1D2129;
  --text-2: #4E5969;
  --text-3: #86909C;
  --bg: #F2F3F5;
  --border: #E5E6EB;
  --white: #FFFFFF;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --font: "PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,sans-serif;
  --max-mobile: 480px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{font-size:14px;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none}
a:hover{opacity:.85}
img{max-width:100%;height:auto}
button,input,select,textarea{font-family:inherit;font-size:inherit;outline:none}
button{cursor:pointer}

.page-mobile{max-width:var(--max-mobile);margin:0 auto;min-height:100vh;background:var(--white);position:relative;padding-bottom:64px}
.page-admin{display:flex;min-height:100vh;background:#f5f7fa}
.admin-sidebar{width:220px;background:#1f2937;color:#fff;flex-shrink:0;position:sticky;top:0;height:100vh;overflow-y:auto}
.admin-main{flex:1;padding:20px;overflow-x:auto;min-width:0}

.card{background:var(--white);border-radius:var(--radius);padding:16px;margin:12px;box-shadow:var(--shadow)}
.card-title{font-size:16px;font-weight:600;margin-bottom:12px;color:var(--text)}

.banner{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;padding:24px 20px 28px;border-radius:0 0 16px 16px}
.banner.green{background:linear-gradient(135deg,#00B42A,#23C343)}
.banner h1{font-size:20px;margin-bottom:6px;font-weight:700}
.banner p{font-size:12px;opacity:.9}

.spec-list,.num-list{display:flex;gap:8px;flex-wrap:wrap}
.spec-item,.num-item{flex:1;min-width:70px;text-align:center;padding:12px 8px;border:1.5px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:all .2s;background:#fff}
.spec-item.active,.num-item.active{border-color:var(--primary);background:#f0f7ff;color:var(--primary);font-weight:600}
.num-price{font-size:16px;font-weight:700;margin-top:4px;color:var(--error)}
.num-item.active .num-price{color:var(--primary)}

.switch{width:44px;height:24px;border-radius:12px;background:#C9CDD4;position:relative;cursor:pointer;transition:.2s;flex-shrink:0}
.switch.active{background:var(--primary)}
.switch.green.active{background:var(--green)}
.switch::after{content:'';position:absolute;width:20px;height:20px;background:#fff;border-radius:50%;top:2px;left:2px;transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.switch.active::after{left:22px}

.service-item{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-bottom:1px solid var(--bg)}
.service-item:last-child{border:none}
.service-desc{font-size:12px;color:var(--text-3);margin-top:2px}

.price-card{background:#f8f9ff;border:1px solid #e8f0ff}
.price-row{display:flex;justify-content:space-between;padding:6px 0;font-size:14px;color:var(--text-2)}
.price-total{padding-top:12px;margin-top:8px;border-top:1px solid #e8f0ff;font-size:16px;font-weight:700;color:var(--primary)}

.btn{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 24px;border-radius:var(--radius);font-size:16px;font-weight:600;border:none;transition:all .2s;gap:6px}
.btn-block{width:100%;display:flex}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:#0E42D2}
.btn-primary:disabled{background:#94BFFF;cursor:not-allowed}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{background:#009A29}
.btn-outline{background:transparent;border:1.5px solid var(--primary);color:var(--primary)}
.btn-sm{height:32px;padding:0 12px;font-size:13px}
.btn-danger{background:var(--error);color:#fff}
.btn-wx{background:#07C160;color:#fff}
.btn-ali{background:#1677FF;color:#fff}

.tab-bar{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:var(--max-mobile);height:56px;background:#fff;display:flex;border-top:1px solid var(--border);z-index:100;padding-bottom:env(safe-area-inset-bottom)}
.tab-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:11px;color:var(--text-3)}
.tab-item.active{color:var(--primary);font-weight:600}
.tab-item.green.active{color:var(--green)}
.tab-icon{font-size:20px;margin-bottom:2px}

.order-card{background:#fff;border-radius:var(--radius);padding:16px;margin:12px;box-shadow:var(--shadow)}
.order-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.order-spec{font-weight:600;font-size:15px}
.order-price{color:var(--green);font-weight:700;font-size:16px}
.order-desc{font-size:12px;color:var(--text-3);line-height:1.6}
.order-tag{display:inline-block;padding:2px 8px;background:#fff7e8;color:var(--warning);font-size:12px;border-radius:4px;margin-right:6px}
.order-tag.urgent{background:#ffece8;color:var(--error)}
.order-tag.good{background:#e8ffea;color:var(--success)}

.status-badge{display:inline-block;padding:2px 8px;border-radius:4px;font-size:12px;font-weight:500}
.status-primary{background:#e8f3ff;color:var(--primary)}
.status-success{background:#e8ffea;color:var(--success)}
.status-warning{background:#fff7e8;color:var(--warning)}
.status-error{background:#ffece8;color:var(--error)}
.status-info{background:#f2f3f5;color:var(--text-2)}

.form-group{margin-bottom:16px}
.form-label{display:block;font-size:13px;color:var(--text-2);margin-bottom:6px;font-weight:500}
.form-input{width:100%;height:44px;padding:0 14px;border:1.5px solid var(--border);border-radius:var(--radius);background:#fff;transition:border .2s}
.form-input:focus{border-color:var(--primary)}
textarea.form-input{height:auto;padding:10px 14px;resize:vertical}

.login-page{min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding:24px;background:linear-gradient(180deg,#e8f3ff 0%,#f5f7fa 40%)}
.login-page.green-bg{background:linear-gradient(180deg,#e8ffea 0%,#f5f7fa 40%)}
.login-logo{text-align:center;margin-bottom:32px}
.login-logo h1{font-size:28px;color:var(--primary);font-weight:700}
.login-logo.green h1{color:var(--green)}
.login-logo p{color:var(--text-3);margin-top:8px;font-size:13px}
.login-card{background:#fff;border-radius:12px;padding:28px 24px;box-shadow:var(--shadow-md);max-width:420px;width:100%;margin:0 auto}

.data-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:12px}
.data-item{background:#fff;border-radius:var(--radius);padding:14px 8px;text-align:center;box-shadow:var(--shadow)}
.data-num{font-size:20px;font-weight:700;color:var(--primary)}
.data-num.green{color:var(--green)}
.data-text{font-size:12px;color:var(--text-3);margin-top:4px}

.table-wrap{background:#fff;border-radius:var(--radius);overflow:auto;box-shadow:var(--shadow)}
table{width:100%;border-collapse:collapse;min-width:600px}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--bg);font-size:13px}
th{background:#fafbfc;color:var(--text-2);font-weight:600;white-space:nowrap}
tr:hover td{background:#fafbfc}

.sidebar-logo{height:60px;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;border-bottom:1px solid #374151}
.menu-item{padding:13px 20px;color:#d1d5db;display:block;transition:.15s}
.menu-item:hover{background:#374151;color:#fff}
.menu-item.active{background:var(--primary);color:#fff;border-right:3px solid #fff}

.toast{position:fixed;top:20px;left:50%;transform:translateX(-50%);padding:12px 24px;border-radius:var(--radius);color:#fff;font-size:14px;z-index:9999;animation:fadeInDown .3s;box-shadow:var(--shadow-md);max-width:90%}
.toast.success{background:var(--success)}
.toast.error{background:var(--error)}
@keyframes fadeInDown{from{opacity:0;transform:translate(-50%,-20px)}to{opacity:1;transform:translate(-50%,0)}}

.empty{text-align:center;padding:48px 20px;color:var(--text-3)}
.empty-icon{font-size:48px;margin-bottom:12px;opacity:.4}

.filter-bar{display:flex;gap:8px;padding:12px;overflow-x:auto;-webkit-overflow-scrolling:touch}
.filter-item{padding:6px 14px;border-radius:16px;background:#fff;font-size:13px;white-space:nowrap;border:1px solid var(--border);display:inline-block}
.filter-item.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.filter-item.green.active{background:var(--green);border-color:var(--green)}

.header-bar{height:48px;display:flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;font-size:17px;font-weight:600;position:sticky;top:0;z-index:50}
.header-bar.green{background:var(--green)}
.header-bar .back{position:absolute;left:12px;font-size:22px;color:#fff;line-height:1}

.profile-header{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;padding:28px 20px;text-align:center}
.profile-header.green{background:linear-gradient(135deg,#00B42A,#23C343)}
.profile-avatar{width:64px;height:64px;border-radius:50%;background:rgba(255,255,255,.3);margin:0 auto 10px;display:flex;align-items:center;justify-content:center;font-size:28px}
.profile-menu{background:#fff;margin:12px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.profile-menu-item{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--bg);cursor:pointer;color:inherit}
.profile-menu-item:last-child{border:none}
.profile-menu-item .arrow{color:var(--text-3)}

.pay-methods{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:16px 0}
.pay-method{border:1.5px solid var(--border);border-radius:var(--radius);padding:16px;text-align:center;cursor:pointer;transition:.2s}
.pay-method.active{border-color:var(--primary);background:#f0f7ff}
.pay-method .icon{font-size:28px;margin-bottom:6px}
.pay-method .name{font-weight:600}

@media (min-width:768px){
  :root{--max-mobile:720px}
  .page-mobile{max-width:720px;box-shadow:0 0 40px rgba(0,0,0,.06);margin:20px auto;border-radius:12px;overflow:hidden;min-height:calc(100vh - 40px)}
  .banner{border-radius:12px 12px 16px 16px}
  .tab-bar{max-width:720px;border-radius:0 0 12px 12px}
  .data-row{grid-template-columns:repeat(3,1fr);gap:16px}
  .num-list{display:grid;grid-template-columns:repeat(5,1fr)}
  .admin-main{padding:24px 32px}
  table{min-width:auto}
}

@media (min-width:1024px){
  :root{--max-mobile:900px}
  .page-mobile{max-width:900px}
  .tab-bar{max-width:900px}
  .card{padding:20px;margin:16px}
  .spec-list{max-width:400px}
  .admin-sidebar{width:240px}
  .login-card{padding:36px 40px}
}

@media (max-width:767px){
  .admin-sidebar{display:none}
  .page-admin{flex-direction:column}
  .admin-main{padding:12px}
  .admin-mobile-nav{display:flex!important;position:fixed;bottom:0;left:0;right:0;background:#1f2937;z-index:100;overflow-x:auto}
  .admin-mobile-nav a{flex:1;text-align:center;padding:10px 8px;color:#d1d5db;font-size:12px;white-space:nowrap}
  .admin-mobile-nav a.active{color:#fff;background:var(--primary)}
}

.admin-mobile-nav{display:none}

@media (min-width:768px){
  .desktop-grid{display:grid;grid-template-columns:1fr 1fr;gap:0}
  .desktop-grid .card{margin:12px}
}