/* ============================================
   Desktop Responsive Layout
   - ≥1024px: 侧边导航 + 宽屏内容区 (主页面)
   - ≥1024px: 居中限宽 (子页面/认证页面)
   - 768-1023px: 平板优化
   ============================================ */

/* =============================================
   1. PC端 ≥1024px — 有侧边导航的主页面
   body.has-sidebar 由 nav.js 在 ≥1024px 时添加
   ============================================= */
@media (min-width: 1024px) {

  body {
    background: var(--bg) !important;
  }

  /* --- 有侧边导航的页面 --- */
  body.has-sidebar .app {
    max-width: none;
    margin: 0;
    box-shadow: none;
    border-radius: 0;
    margin-top: 0 !important;
    margin-bottom: 0 !important;
    min-height: 100vh;
  }

  /* 侧边导航 */
  body.has-sidebar .btm-nav {
    position: fixed !important;
    bottom: auto !important;
    top: 0 !important;
    left: 0 !important;
    transform: none !important;
    width: 220px !important;
    max-width: none !important;
    height: 100vh !important;
    height: 100dvh !important;
    flex-direction: column !important;
    border-top: none !important;
    border-right: 1px solid var(--line) !important;
    border-radius: 0 !important;
    padding: 0 !important;
    padding-bottom: 0 !important;
    background: var(--bg2) !important;
    z-index: 100;
    gap: 2px;
  }

  /* 品牌Logo */
  body.has-sidebar .btm-nav::before {
    content: '华润';
    display: flex;
    align-items: center;
    justify-content: center;
    height: 64px;
    font-size: 22px;
    font-weight: 800;
    letter-spacing: 4px;
    font-family: 'Georgia', 'Times New Roman', serif;
    color: var(--text);
    border-bottom: 1px solid var(--line);
    flex-shrink: 0;
    padding: 0 20px;
  }

  [data-theme="dark"] body.has-sidebar .btm-nav::before {
    background: linear-gradient(135deg, #F2F2F2, #A0A0A0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  /* 导航项 - 水平变垂直 */
  body.has-sidebar .btm-nav a {
    flex: none !important;
    flex-direction: row !important;
    justify-content: flex-start !important;
    gap: 12px !important;
    padding: 12px 20px !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    border-radius: 10px;
    margin: 2px 10px;
    transition: background .15s, color .2s;
  }

  body.has-sidebar .btm-nav a:first-of-type {
    margin-top: 12px;
  }

  body.has-sidebar .btm-nav a:hover {
    background: var(--bg3);
  }

  body.has-sidebar .btm-nav a.on {
    background: rgba(0, 202, 120, .08);
    font-weight: 600 !important;
  }

  body.has-sidebar .btm-nav a svg {
    width: 20px !important;
    height: 20px !important;
    flex-shrink: 0;
  }

  body.has-sidebar .btm-nav a span {
    font-size: 14px;
  }

  /* 内容区偏移 */
  body.has-sidebar .page {
    margin-left: 220px;
    padding-bottom: 48px !important;
    width: calc(100% - 220px);
    min-height: 100vh;
  }

  /* Toast / Confirm 偏移 */
  body.has-sidebar .toast-c {
    max-width: 480px !important;
    left: calc(220px + (100% - 220px) / 2) !important;
  }

  body.has-sidebar .cfm-ov {
    padding-left: 220px;
  }

  /* --- 无侧边导航的子页面 --- */
  body:not(.has-sidebar) .app {
    max-width: 720px;
    margin: 0 auto;
    box-shadow: none;
    border-radius: 0;
    margin-top: 0 !important;
    margin-bottom: 0 !important;
    border-left: 1px solid var(--line);
    border-right: 1px solid var(--line);
  }

  /* --- 通用PC优化 --- */
  .topbar {
    height: 56px;
    padding: 0 32px;
    border-bottom: 1px solid var(--line);
  }

  .topbar-title {
    font-size: 20px;
  }

  .cfm-box {
    max-width: 480px;
    border-radius: 16px !important;
    margin-bottom: 0;
  }

  .section {
    padding: 20px 32px;
  }

  .px {
    padding-left: 32px;
    padding-right: 32px;
  }

  /* 行情列表 */
  .quote-item {
    padding: 14px 32px;
    transition: background .1s;
  }

  .quote-item:hover {
    background: var(--bg3);
  }

  .qi-chart {
    width: 100px;
    height: 40px;
  }

  .qi-right {
    min-width: 120px;
  }

  /* 资产概览 */
  .asset-hero {
    padding: 32px;
  }

  .asset-bal {
    font-size: 40px;
  }

  .asset-row {
    padding: 0 32px;
    max-width: 600px;
    margin: 0 auto;
  }

  .asset-grid {
    padding: 20px 32px;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    max-width: 800px;
  }

  /* 双账户Tab */
  .acct-tabs {
    margin: 0 32px;
    max-width: 480px;
  }

  .acct-tab {
    padding: 12px 0;
    font-size: 14px;
    cursor: pointer;
    transition: all .15s;
  }

  .acct-tab:hover:not(.on) {
    background: var(--bg3);
    border-radius: 8px;
  }

  /* 余额卡片 */
  .bal-card {
    margin: 0 32px 14px;
    padding: 24px 28px;
  }

  /* Swap页面 */
  .swap-card {
    margin: 0 32px 12px;
    max-width: 560px;
  }

  .swap-info {
    padding: 0 32px;
    max-width: 560px;
  }

  .swap-rate {
    margin: 0 32px 16px;
    max-width: 560px;
  }

  .swap-btn {
    width: calc(100% - 64px);
    margin: 8px 32px 24px;
    max-width: 560px;
  }

  .swap-sel:hover {
    background: var(--bg3);
    border-color: var(--dim);
  }

  .swap-icon:hover {
    background: var(--bg3);
    border-color: var(--dim);
  }

  /* Coin选择弹窗 */
  .coin-sheet {
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
    border-radius: 16px !important;
    margin-bottom: 20vh;
  }

  .coin-item:hover {
    background: var(--bg3);
  }

  /* 菜单列表 */
  .menu-item {
    padding: 14px 32px;
    transition: background .1s;
  }

  .menu-item:hover {
    background: var(--bg3);
  }

  /* 持仓列表 */
  .pos-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  /* 表单居中限宽 */
  .inp-group {
    max-width: 560px;
  }

  .btn {
    max-width: 560px;
  }

  /* Tab栏 */
  .tabs {
    padding: 0 32px;
  }

  .pills {
    padding: 8px 32px;
  }

  /* K线图表页 */
  .ch-header {
    padding: 16px 32px;
  }

  .tf-bar {
    padding: 0 24px;
  }

  .ma-bar {
    padding: 4px 32px;
  }

  body.has-sidebar .buy-bar {
    left: 220px !important;
    bottom: 0 !important;
    transform: none !important;
    width: calc(100% - 220px) !important;
    max-width: none !important;
  }

  .order-title {
    padding: 10px 32px;
  }

  .order-head {
    padding: 0 32px 4px;
  }

  .ob-l {
    padding-left: 32px;
  }

  .ob-r {
    padding-right: 32px;
  }

  /* 交易对选择弹窗 - PC端居中 */
  body.has-sidebar .pair-modal {
    padding-left: 220px;
  }

  .pair-sheet {
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
    border-radius: 16px !important;
    margin-bottom: 20vh;
  }

  .pair-item:hover {
    background: var(--bg3);
  }

  /* PC端hover优化 */
  .tab:hover {
    color: var(--text);
  }

  .pill:hover {
    border-color: var(--g);
    color: var(--text);
  }

  .pos-item {
    transition: background .1s;
  }

  .pos-item:hover {
    background: var(--bg3);
  }

  .method:hover {
    background: var(--bg3);
  }

  /* 按钮hover */
  .btn:hover {
    opacity: .9;
  }

  .btn-xs:hover, .btn-sm:hover {
    opacity: .85;
  }

  /* 链接cursor */
  .topbar-back:hover {
    opacity: .7;
  }

  /* 滚动条美化 */
  ::-webkit-scrollbar {
    width: 6px;
    height: 6px;
  }

  ::-webkit-scrollbar-track {
    background: transparent;
  }

  ::-webkit-scrollbar-thumb {
    background: var(--line);
    border-radius: 3px;
  }

  ::-webkit-scrollbar-thumb:hover {
    background: var(--dim);
  }
}

/* =============================================
   2. 超宽屏 ≥1440px
   ============================================= */
@media (min-width: 1440px) {

  body.has-sidebar .btm-nav {
    width: 260px !important;
  }

  body.has-sidebar .btm-nav a {
    padding: 14px 24px !important;
    margin: 2px 12px;
  }

  body.has-sidebar .page {
    margin-left: 260px;
    width: calc(100% - 260px);
  }

  body.has-sidebar .toast-c {
    left: calc(260px + (100% - 260px) / 2) !important;
  }

  body.has-sidebar .cfm-ov {
    padding-left: 260px;
  }

  body.has-sidebar .buy-bar {
    left: 260px !important;
    width: calc(100% - 260px) !important;
  }

  body.has-sidebar .pair-modal {
    padding-left: 260px;
  }

  body:not(.has-sidebar) .app {
    max-width: 800px;
  }

  .topbar {
    padding: 0 40px;
  }

  .section {
    padding: 24px 40px;
  }

  .px {
    padding-left: 40px;
    padding-right: 40px;
  }

  .quote-item {
    padding: 16px 40px;
  }

  .menu-item {
    padding: 16px 40px;
  }

  .tabs {
    padding: 0 40px;
  }

  .pills {
    padding: 8px 40px;
  }

  .asset-hero {
    padding: 40px;
  }
}

/* =============================================
   3. 平板 768px - 1023px
   ============================================= */
@media (min-width: 768px) and (max-width: 1023px) {

  .app {
    max-width: 768px;
    border-radius: 0;
    margin-top: 0 !important;
    margin-bottom: 0 !important;
    box-shadow: none;
  }

  .btm-nav {
    max-width: 768px;
    border-radius: 0 !important;
  }

  .asset-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .pos-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .section {
    padding: 16px 24px;
  }

  .px {
    padding-left: 24px;
    padding-right: 24px;
  }

  .quote-item {
    padding: 14px 24px;
  }

  .menu-item {
    padding: 14px 24px;
  }

  .qi-chart {
    width: 80px;
    height: 36px;
  }
}