*{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#3b5bdb;--primary-dark:#2b48c9;--bg:#f4f6fb;--card:#fff;
  --text:#1f2937;--muted:#6b7280;--border:#e5e7eb;--radius:10px;
  --green:#16a34a;--red:#dc2626;--amber:#d97706;
}
body{font-family:-apple-system,"Segoe UI","Microsoft YaHei",Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;font-size:14px}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-dark)}
/* ===== 上中下布局:菜单区 / 功能区 / 页底区 ===== */
.topbar{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}
.topbar-inner{max-width:1400px;margin:0 auto;padding:0 20px;height:60px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.topbar-nav{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.topbar-nav.nav-left{flex:1;min-width:0}
.topbar-nav.nav-right{flex:0 0 auto;justify-content:flex-end}
.brand{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:18px;color:var(--primary);flex:none}
.brand-icon{width:26px;height:26px;display:block;border-radius:6px;flex:none}
/* 菜单项:图标 + 文字(窄屏隐藏文字,只留图标) */
.nav-link{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:8px;color:var(--text);font-size:14px;white-space:nowrap}
.nav-link:hover{background:var(--bg);color:var(--primary)}
.nav-link.active{background:#eef2ff;color:var(--primary);font-weight:600}
.nav-icon{width:18px;height:18px;flex:none}
.nav-user{display:inline-flex;align-items:center;gap:6px;padding:8px 10px;color:var(--muted);font-size:13px;white-space:nowrap}
.nav-user .nav-icon{width:18px;height:18px;color:var(--primary)}

/* 功能区(上中下布局的中间段):前台/用户后台/管理后台统一 1400px */
.layout-page{width:100%;padding:28px 20px}
.page-content{width:100%;max-width:1400px;margin:0 auto}
/* 兼容旧类名(前台/后台内容容器) */
.layout-public .public-content,
.dashboard-content{width:100%;max-width:1400px;margin:0 auto}
.page-head h1{font-size:22px;margin-bottom:18px}

.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:20px;overflow:hidden}
.card-head{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.card-head h2{font-size:16px}
.card-body{padding:20px}

.form-group{margin-bottom:16px}
.form-group label{display:block;margin-bottom:6px;font-weight:600;color:var(--text)}
.form-group .hint{font-weight:400;color:var(--muted);font-size:12px}
.form-control{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;background:#fff;transition:border-color .15s}
.form-control:focus{outline:none;border-color:var(--primary)}
textarea.form-control{min-height:90px;resize:vertical}
.btn{display:inline-block;padding:9px 18px;border:none;border-radius:8px;background:var(--primary);color:#fff;cursor:pointer;font-size:14px}
.btn:hover{background:var(--primary-dark)}
/* 表单按钮行:按钮等分铺满整行宽度;窄屏改为纵向全宽 */
.form-actions{display:flex;gap:10px;margin-top:16px}
.form-actions .btn{flex:1 1 0;text-align:center;min-width:0}
@media(max-width:640px){
  .form-actions{flex-direction:column}
  .form-actions .btn{width:100%}
}
/* 按钮容器:宽度放满自适应(保存密码 / 保存设置 / 兑换 / 前往首页 等) */
.card-actions{margin-top:18px;padding-top:16px;border-top:1px solid var(--border);width:100%}
.card-actions .btn{display:block;width:100%;text-align:center;font-size:15px;padding:13px 18px}
@media(max-width:640px){
  .card-actions{margin-top:16px;padding-top:14px}
}
/* 块状按钮:宽度放满所在容器(登录、注册等主操作按钮) */
.btn-block{display:block;width:100%;text-align:center;padding:12px 18px;font-size:15px}
.btn:disabled,.btn[disabled]{opacity:.55;cursor:not-allowed;background:var(--primary)}
.form-control[readonly]{background:#f6f8fb;color:var(--muted)}
.btn-secondary{background:#fff;color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover{background:var(--bg)}
.btn-danger{background:var(--red)}
.btn-sm{padding:5px 10px;font-size:12px}

.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--border);font-size:13px;white-space:nowrap}
.table th{background:#fafbfd;color:var(--muted);font-weight:600}
.table tr:hover{background:#fafbfd}

.badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px}
.badge-green{background:#dcfce7;color:var(--green)}
.badge-red{background:#fee2e2;color:var(--red)}
.badge-gray{background:#f3f4f6;color:var(--muted)}
.badge-blue{background:#dbeafe;color:var(--primary)}
.badge-amber{background:#fef3c7;color:var(--amber)}

.alert{padding:11px 15px;border-radius:8px;margin-bottom:16px;border:1px solid}
.alert-success{background:#f0fdf4;border-color:#bbf7d0;color:var(--green)}
.alert-error{background:#fef2f2;border-color:#fecaca;color:var(--red)}
.alert-info{background:#eff6ff;border-color:#bfdbfe;color:var(--primary)}
.empty{text-align:center;color:var(--muted);padding:40px 0}

.layout-dashboard{display:flex;min-height:100vh}
.sidebar{width:230px;background:#fff;border-right:1px solid var(--border);display:flex;flex-direction:column;position:sticky;top:0;align-self:flex-start;height:100vh;overflow-y:auto;flex-shrink:0}
.sidebar-brand{padding:18px 20px;font-weight:700;font-size:16px;border-bottom:1px solid var(--border)}
.sidebar-brand a{color:var(--primary)}
.sidebar-user{padding:18px 20px;border-bottom:1px solid var(--border);text-align:center}
.sidebar-user-name{margin-top:8px;font-weight:600}
.sidebar-user-sub{color:var(--muted);font-size:12px}
.sidebar-menu{list-style:none;flex:1;padding:10px 0}
.sidebar-menu li a{display:block;padding:11px 20px;color:var(--text)}
.sidebar-menu li a:hover{background:var(--bg);color:var(--primary)}
.sidebar-menu li.active a{background:#eef2ff;color:var(--primary);font-weight:600;border-left:3px solid var(--primary)}
.sidebar-foot{padding:14px 20px;border-top:1px solid var(--border)}
.sidebar-foot a{color:var(--red)}
/* 用户后台 / 管理后台容器宽度 1400px */
.dashboard-content{padding:0}

.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:20px}
.stat{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:18px}
.stat-num{font-size:26px;font-weight:700;color:var(--primary);word-break:break-all}
.stat-label{color:var(--muted);font-size:13px;margin-top:4px}
/* 后台首页第一行:靠左「欢迎,昵称」,靠右到期信息(纯文字,不用卡片) */
.greet-bar{display:flex;align-items:baseline;justify-content:space-between;flex-wrap:wrap;gap:6px 16px;padding:2px 0 18px}
.greet-hello{font-size:16px;font-weight:600;color:var(--text)}
.greet-expire{color:var(--muted);font-size:13px}
.greet-sep{margin:0 10px;color:var(--border)}
@media(max-width:640px){
  .greet-bar{flex-direction:column;align-items:flex-start;gap:4px;padding-bottom:14px}
  .greet-sep{margin:0 8px}
}

/* 一格内左右并排显示两项(账号到期日期 / VIP到期日期) */
.stat-split{display:flex;align-items:center;gap:12px;padding:16px 12px}
.stat-split .stat-cell{flex:1 1 0;min-width:0;text-align:center}
.stat-split .stat-cell + .stat-cell{border-left:1px solid var(--border)}
.stat-split .stat-num{font-size:19px}

.pagination{display:flex;gap:6px;justify-content:center;margin-top:18px}
.pagination a,.pagination span{padding:6px 12px;border:1px solid var(--border);border-radius:6px;background:#fff}
.pagination a:hover{background:var(--bg)}
.pagination .cur{background:var(--primary);color:#fff;border-color:var(--primary)}

.site-footer{padding:18px;text-align:center;color:var(--muted);font-size:12px;border-top:1px solid var(--border);background:#fff}
.site-footer p{margin:4px 0;line-height:1.8}
.site-footer a{color:var(--primary)}
.site-footer a:hover{color:var(--primary-dark)}
.site-footer .dot{margin:0 8px}

.hero{text-align:center;padding:60px 20px 50px}
.hero h1{font-size:34px;margin-bottom:14px}
.hero p{color:var(--muted);max-width:640px;margin:0 auto 26px;font-size:15px}
.hero-actions{display:flex;gap:12px;justify-content:center}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;max-width:1000px;margin:0 auto}
.feature{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px}
.feature h3{margin-bottom:8px;color:var(--primary)}
.feature p{color:var(--muted);font-size:13px}

/* 用户注册 / 用户登录 / 管理登录 / 认证授权 容器宽度 500px */
.auth-wrap{width:100%;max-width:500px;margin:40px auto}
.muted-link{color:var(--muted);font-size:13px}

/* 滑动验证 */
.slide-verify{position:relative;width:100%;height:40px;background:#f0f1f5;border:1px solid var(--border);border-radius:6px;overflow:hidden;user-select:none}
.sv-track{position:relative;width:100%;height:100%}
.sv-progress{position:absolute;left:0;top:0;height:100%;width:0;background:linear-gradient(90deg,#c7d2fe,#a5b4fc);transition:none}
.sv-text{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--muted);z-index:1}
.sv-btn{position:absolute;left:0;top:0;width:40px;height:100%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;cursor:grab;border-radius:6px;z-index:2;transition:none}
.sv-btn:active{cursor:grabbing}
.slide-verify.sv-done .sv-progress{background:linear-gradient(90deg,#86efac,#4ade80)}
.slide-verify.sv-done .sv-btn{background:var(--green);cursor:default}
.slide-verify.sv-done .sv-text{color:var(--green)}
.slide-verify.sv-done .sv-btn{cursor:default}
.row{display:flex;gap:10px;align-items:center}
/* 后台第一行(搜索/筛选条):宽度放满、自适应换行 */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;width:100%;margin-bottom:16px}
.filter-bar .form-control{width:auto;flex:1 1 200px;min-width:140px}
.filter-bar select.form-control{flex:0 1 170px;min-width:120px}
.filter-bar .btn{flex:0 0 auto}
@media(max-width:640px){
  .filter-bar{flex-direction:column;align-items:stretch}
  .filter-bar .form-control,
  .filter-bar select.form-control,
  .filter-bar .btn{width:100%;flex:1 1 auto}
}
.kv{display:grid;grid-template-columns:120px 1fr;gap:10px;padding:8px 0;border-bottom:1px solid var(--border)}
.kv dt{color:var(--muted)}
.kv:last-of-type{border-bottom:none}
@media(max-width:640px){
  .sidebar{width:64px}.sidebar-brand,.sidebar-user,.sidebar-foot{display:none}
  .sidebar-menu li a{text-align:center;padding:14px 6px}
  .dashboard-content{padding:18px}
}
/* 客服页面 */
.cs-wrap{max-width:760px;margin:0 auto;padding:8px 0 28px}
.cs-hero{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;border-radius:var(--radius);padding:36px 24px;text-align:center;margin-bottom:20px
}
.cs-hero-title{font-size:22px;font-weight:700;margin-bottom:6px}
.cs-hero-sub{font-size:13px;opacity:.92}
.cs-cards{display:flex;flex-direction:column;gap:12px;margin-bottom:22px}
.cs-row{
  display:flex;align-items:center;gap:14px;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;
  transition:box-shadow .15s,transform .15s
}
.cs-row:hover{box-shadow:0 4px 14px rgba(31,41,55,.06);transform:translateY(-1px)}
.cs-row-icon{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;color:#fff
}
.cs-row-icon-qq{background:#1f2937}
.cs-row-icon-qr{background:var(--green)}
.cs-row-info{flex:1;min-width:0}
.cs-row-label{font-size:12px;color:var(--muted);margin-bottom:2px}
.cs-row-value{font-size:15px;font-weight:600;color:var(--text);word-break:break-all}
.cs-row .btn{flex-shrink:0;padding:8px 16px}
.cs-qr-img{width:76px;height:76px;object-fit:contain;border-radius:6px;background:#fff;flex-shrink:0;border:1px solid var(--border)}
@media(max-width:640px){
  .cs-hero{padding:26px 18px}
  .cs-hero-title{font-size:20px}
  .cs-row{flex-wrap:wrap}
  .cs-row .btn{width:100%;text-align:center;margin-top:4px}
}
/* 用户资料页 */
.info-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 28px;margin:0}
.info-item{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--border)}
.info-item dt{flex:0 0 88px;color:var(--muted)}
.info-item dd{flex:1;min-width:0;word-break:break-all}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.two-col h3{font-size:15px;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border)}
@media(max-width:640px){
  .two-col{grid-template-columns:1fr}
  /* 窄屏仍保持「全部资料」一行两个,改为标签在上、值在下 */
  .info-grid{gap:0 16px}
  .info-item{flex-direction:column;gap:2px}
  .info-item dt{flex:none}
}

/* 弹窗(后台用户操作) */
.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.45);display:none;align-items:center;justify-content:center;z-index:1000;padding:24px}
.modal-backdrop.open{display:flex}
/* 弹窗容器宽度 500px */
.modal-dialog{background:#fff;border-radius:10px;box-shadow:0 12px 40px rgba(0,0,0,.18);width:100%;max-width:500px;display:flex;flex-direction:column;max-height:90vh;overflow:hidden}
.modal-head{padding:14px 20px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:15px}
.modal-close{background:none;border:none;font-size:22px;line-height:1;cursor:pointer;color:var(--muted);padding:0 4px}
.modal-close:hover{color:var(--text)}
.modal-body{padding:18px 20px;overflow-y:auto}
.modal-body .form-group{margin-bottom:12px}
.modal-body .form-group:last-child{margin-bottom:0}
.modal-actions{padding:12px 20px;border-top:1px solid var(--border);display:flex;gap:8px;justify-content:flex-end;background:#fafbfd}
.act-row{display:flex;flex-wrap:wrap;gap:4px}
/* 操作按钮:一行两个,共两行(充值 / 编辑 / 改密 / 删除) */
.act-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px;min-width:150px}
.act-grid .act-btn{width:100%;justify-content:center;min-height:30px}
.act-grid form{display:block;min-width:0}
.act-grid form .act-btn{width:100%}
/* 上下堆叠单元格:主值 + 小字副值 */
.cell-stack .cell-main{display:block;font-size:13px}
.cell-stack .cell-sub{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-top:2px}
.act-btn{
  display:inline-flex;align-items:center;gap:4px;
  padding:4px 9px;border-radius:6px;background:#fff;color:var(--text);
  border:1px solid var(--border);font-size:12px;cursor:pointer;text-decoration:none;
}
.act-btn:hover{background:var(--bg)}
.act-btn.danger{color:var(--red);border-color:#fecaca}
.act-btn.danger:hover{background:#fef2f2}
.act-btn.primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.act-btn.primary:hover{background:var(--primary-dark)}
.act-locked{display:inline-block;padding:5px 12px;border-radius:6px;font-size:12px;background:#f3f4f6;color:var(--muted);border:1px dashed #d1d5db}

/* ===== 手机自适应(访问优先) ===== */
@media(max-width:992px){
  .layout-page{padding:22px 18px}
  .feature-grid{max-width:100%}
  /* 菜单区紧凑:缩小间距,文字保留 */
  .topbar-nav{gap:2px}
  .nav-link{padding:8px 8px}
  .brand{font-size:16px}
}
@media(max-width:640px){
  /* 菜单区:只显示图标,单行横向滚动 */
  .nav-text{display:none}
  .nav-user .nav-text{display:none}
  .nav-link{padding:9px 10px;gap:0}
  .nav-icon{width:20px;height:20px}
  .nav-user{padding:9px 6px;gap:0}
  .topbar-inner{height:56px;padding:0 12px;gap:8px}
  .topbar-nav{gap:2px;flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .topbar-nav::-webkit-scrollbar{display:none}
  .topbar-nav.nav-right{flex:0 1 auto}
  .brand-text{max-width:22vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  /* 容器留白收紧,避免小屏横向留白过多 */
  .layout-page{padding:16px 12px}
  .layout-public .public-content{padding:20px 12px}
  .dashboard-content{padding:0}
  /* 注册 / 登录 / 认证容器 */
  .auth-wrap{margin:18px auto}
  .card-head{padding:14px 16px}
  .card-body{padding:16px}
  .card-head h2{font-size:15px}
  /* 弹窗 */
  .modal-backdrop{padding:14px}
  .modal-dialog{max-height:88vh}
  .modal-head,.modal-body,.modal-actions{padding-left:16px;padding-right:16px}
  /* 表单控件加大触控区,避免移动端误触 */
  .form-control{padding:12px 12px;font-size:16px}
  .btn{padding:12px 18px;font-size:15px}
  /* 注册 / 登录 / 认证页:主按钮全宽便于单手点击 */
  .auth-wrap form > .btn{display:block;width:100%;text-align:center;margin-top:8px}
  /* 宽表格横向滚动(后台用户/管理员/应用列表) */
  .card-body{overflow-x:auto}
  .hero{padding:36px 14px 28px}
  .hero h1{font-size:24px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .stat-grid{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}
}