/* 费用中心: left navigation + title bar, matching the account center layout
   (accountCenter.css) so both sections share measurements and behaviour. */
html.ax-billing-center { --bc-dark: #202020; --bc-active: #303744; --bc-text: #202020; --bc-muted: #62666d; --bc-border: #e5e8ee; --bc-blue: #0052d9; --bc-pad: 24px; }

html.ax-billing-center body .el-main { margin-left: 200px !important; width: calc(100% - 200px) !important; padding: 124px var(--bc-pad) 24px !important; }
html.ax-billing-center.ax-nav-open body .el-main { margin-left: 380px !important; width: calc(100% - 380px) !important; }

.ax-billing-nav { position: fixed; z-index: 1000; left: 0; top: 50px; bottom: 0; width: 200px; display: flex; flex-direction: column; padding: 16px 8px; background: var(--bc-dark); color: #c9c9c9; box-sizing: border-box; }
.ax-billing-nav-title { padding: 0 12px 14px; font-size: 16px; line-height: 24px; font-weight: 600; color: #fff; }
.ax-billing-nav-list { flex: 1; min-height: 0; overflow-y: auto; scrollbar-width: thin; }
.ax-billing-group { margin-top: 6px; }
.ax-billing-group-title { display: flex; align-items: center; gap: 12px; min-height: 40px; padding: 8px 12px; font-size: 14px; line-height: 24px; color: #e8e8e8; }
.ax-billing-nav i { font-size: 17px; width: 18px; text-align: center; }
html.ax-billing-center body .ax-billing-link { display: flex; align-items: center; gap: 12px; min-height: 40px; padding: 8px 12px 8px 42px; font-size: 14px; line-height: 24px; color: #c9c9c9 !important; text-decoration: none; }
html.ax-billing-center body .ax-billing-link.ax-billing-top { padding-left: 12px; min-height: 44px; color: #e8e8e8 !important; }
html.ax-billing-center body .ax-billing-link:hover,
html.ax-billing-center body .ax-billing-link:focus-visible { background: #2a2a2a; color: #fff !important; }
html.ax-billing-center body .ax-billing-link.active { background: var(--bc-active); color: #fff !important; }
html.ax-billing-center body .ax-billing-return { display: flex; align-items: center; gap: 12px; min-height: 44px; margin-top: 8px; padding: 10px 12px; border-top: 1px solid #333; font-size: 14px; color: #c9c9c9 !important; }
html.ax-billing-center body .ax-billing-return:hover { color: #fff !important; }

.ax-billing-titlebar { position: fixed; z-index: 1040; top: 50px; left: 200px; right: 0; height: 50px; display: flex; align-items: center; justify-content: space-between; padding: 0 var(--bc-pad); background: #fff; border-bottom: 1px solid var(--bc-border); box-sizing: border-box; }
.ax-billing-titlebar h1 { display: flex; align-items: center; gap: 14px; margin: 0; font-size: 18px; line-height: 26px; font-weight: 600; color: var(--bc-text); }
html.ax-billing-center body .ax-billing-back { display: inline-flex; color: var(--bc-blue) !important; font-size: 18px; }
html.ax-billing-center body .ax-billing-titlebar > a { font-size: 13px; color: var(--bc-muted) !important; }
html.ax-billing-center.ax-nav-open .ax-billing-nav { left: 180px; }
html.ax-billing-center.ax-nav-open .ax-billing-titlebar { left: 380px; }

/* Billing pages drop their own title and tab strip: the left navigation and
   the title bar above already say where you are. */
html.ax-billing-center .finance .finance-title { display: none !important; }
html.ax-billing-center .finance .content_tab > .el-tabs > .el-tabs__header { display: none !important; }
html[data-billing-section="withdraw"] .el-main .main-card > header { display: none !important; }

@media (max-width: 1100px) {
  html.ax-billing-center.ax-nav-open .ax-billing-nav { left: 0; }
  html.ax-billing-center.ax-nav-open .ax-billing-titlebar { left: 200px; }
  html.ax-billing-center body .el-main,
  html.ax-billing-center.ax-nav-open body .el-main { margin-left: 200px !important; width: calc(100% - 200px) !important; padding: 124px 20px 24px !important; }
}
@media (max-width: 700px) {
  /* Phones: the navigation becomes a scrollable tab row under the title bar. */
  .ax-billing-nav { top: 100px; bottom: auto; width: 100%; height: 50px; padding: 0 8px; flex-direction: row; align-items: stretch; background: #fff; border-bottom: 1px solid var(--bc-border); }
  .ax-billing-nav-title, .ax-billing-group-title, html.ax-billing-center body .ax-billing-return { display: none !important; }
  .ax-billing-nav-list { display: flex; overflow-x: auto; overflow-y: hidden; scrollbar-width: none; }
  .ax-billing-nav-list::-webkit-scrollbar { display: none; }
  .ax-billing-group { display: contents; }
  .ax-billing-nav i { display: none; }
  html.ax-billing-center body .ax-billing-link,
  html.ax-billing-center body .ax-billing-link.ax-billing-top { flex-shrink: 0; min-height: 50px; padding: 12px 14px; white-space: nowrap; color: var(--bc-muted) !important; border-bottom: 2px solid transparent; }
  html.ax-billing-center body .ax-billing-link:hover,
  html.ax-billing-center body .ax-billing-link:focus-visible { background: transparent; color: var(--bc-blue) !important; }
  html.ax-billing-center body .ax-billing-link.active { background: transparent; color: var(--bc-blue) !important; border-bottom-color: var(--bc-blue); }
  .ax-billing-titlebar, html.ax-billing-center.ax-nav-open .ax-billing-titlebar { left: 0; padding: 0 16px; }
  html.ax-billing-center body .el-main,
  html.ax-billing-center.ax-nav-open body .el-main { margin-left: 0 !important; width: 100% !important; padding: 170px 16px 20px !important; }
}