.account-header {
  max-width: 1320px;
  min-height: 76px;
  margin: 0 auto;
  padding: 12px 30px;
  display: flex;
  align-items: center;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}
.account-brand { display: inline-flex; align-items: center; gap: 9px; white-space: nowrap; }
.account-brand > span { color: var(--green); font-size: 24px; }
.account-brand strong { font-size: 21px; font-weight: 850; }
.account-brand small { color: var(--muted); font-size: 11px; margin-left: 2px; }
.account-header nav { display: flex; align-items: center; gap: 22px; margin-left: auto; color: var(--muted); font-size: 12px; }
.account-header nav a { padding: 8px 1px; }
.account-header nav a:hover,.account-header nav a.account-nav-current { color: var(--green); }
.account-header nav a.account-nav-current { border-bottom: 2px solid var(--theme-accent); }
.account-theme-mount { display: flex; justify-content: end; }

.account-main { width: min(1100px, calc(100% - 40px)); margin: 0 auto; padding: 55px 0 60px; }
.account-intro { max-width: 670px; margin: 0 auto 28px; text-align: center; }
.account-eyebrow { color: var(--gold); font-size: 9px; font-weight: 750; letter-spacing: 2.1px; margin: 0 0 9px; }
.account-intro h1 { margin: 0; font: 700 clamp(27px, 4vw, 38px)/1.45 Georgia,"Microsoft YaHei",serif; letter-spacing: -.6px; }
.account-intro h1 em { color: var(--green); font-style: normal; }
.account-intro > p:last-child { max-width: 580px; margin: 12px auto 0; color: var(--muted); font-size: 12px; line-height: 1.9; }

.account-card { position: relative; width: min(100%, 560px); min-height: 410px; margin: 0 auto; padding: 42px clamp(25px, 7vw, 62px) 36px; overflow: hidden; border: 1px solid var(--line); border-radius: 26px; background: var(--white); box-shadow: 0 12px 38px color-mix(in srgb, var(--ink) 7%, transparent), 0 4px 0 color-mix(in srgb, var(--green) 5%, transparent); }
.account-card-mark { position: absolute; top: -46px; right: -34px; width: 130px; height: 130px; display: grid; place-items: center; border-radius: 50%; background: var(--theme-soft); color: var(--theme-accent); opacity: .7; }
.account-card-mark span { font-size: 39px; transform: rotate(12deg); }
.account-card-mark i { position: absolute; width: 8px; height: 8px; top: 94px; left: 18px; border-radius: 50%; background: var(--peach); box-shadow: -35px -38px 0 -2px var(--gold); }
.account-card-heading { position: relative; z-index: 1; margin: 4px 0 23px; }
.account-card-heading h2 { margin: 0 0 7px; font: 700 25px/1.4 Georgia,"Microsoft YaHei",serif; }
.account-card-heading > p:last-child { color: var(--muted); margin: 0; font-size: 12px; line-height: 1.8; }
.account-loading { padding: 50px 0; text-align: center; color: var(--muted); }

.account-tabs { display: flex; gap: 5px; padding: 4px; margin-bottom: 19px; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); }
.account-tabs button { flex: 1; min-height: 39px; border: 0; border-radius: 9px; background: transparent; color: var(--muted); font-size: 12px; }
.account-tabs button[aria-selected="true"] { color: var(--green); background: var(--white); box-shadow: 0 1px 4px #384f4918; font-weight: 700; }
.account-form { display: grid; gap: 9px; }
.account-form label { margin-top: 5px; color: var(--ink); font-size: 11px; font-weight: 650; }
.account-form label span { color: var(--muted); font-size: 10px; font-weight: 400; }
.account-form input { width: 100%; min-height: 44px; padding: 10px 13px; border: 1px solid var(--line); border-radius: 10px; outline: 0; background: color-mix(in srgb, var(--paper) 38%, var(--white)); color: var(--ink); font-size: 13px; transition: border-color .15s, box-shadow .15s; }
.account-form input::placeholder { color: color-mix(in srgb, var(--muted) 65%, transparent); }
.account-form input:focus { border-color: var(--theme-accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--theme-accent) 15%, transparent); }
.account-primary,.account-secondary { min-height: 45px; padding: 11px 18px; border-radius: 11px; font-size: 12px; font-weight: 700; transition: transform .15s, background-color .15s; }
.account-primary { border: 1px solid var(--green); background: var(--green); color: #fff; box-shadow: 0 3px 0 color-mix(in srgb, var(--green) 23%, transparent); }
.account-primary:hover:not(:disabled),.account-secondary:hover:not(:disabled) { transform: translateY(-1px); }
.account-submit { margin-top: 11px; }
.account-secondary { width: fit-content; border: 1px solid var(--line); background: var(--theme-soft); color: var(--green); }
.account-text-button { justify-self: start; padding: 7px 1px; border: 0; background: none; color: var(--green); font-size: 11px; text-decoration: underline; text-underline-offset: 3px; }
.account-text-button:disabled { color: var(--muted); opacity: .75; text-decoration: none; }
.account-form-links { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-top: 2px; }
.account-form-copy,.account-privacy-note { color: var(--muted); font-size: 11px; line-height: 1.85; margin: 4px 0 8px; }
.account-privacy-note { margin: -3px 0 0; font-size: 10px; }
.account-back-link { display: block; margin: 13px auto 0; }

.account-mail-art { position: relative; width: 82px; height: 68px; margin: 0 auto 22px; display: grid; place-items: center; border-radius: 17px; background: var(--theme-soft); color: var(--green); }
.account-mail-art > span { font-size: 39px; }
.account-mail-art i { position: absolute; right: -7px; bottom: -5px; width: 24px; height: 24px; display: grid; place-items: center; border: 2px solid var(--white); border-radius: 50%; background: var(--theme-accent); color: white; font: 700 12px sans-serif; font-style: normal; }
#accountPendingView > .account-primary { display: block; width: 100%; }

.account-identity-card { display: flex; align-items: center; gap: 12px; padding: 14px; border: 1px solid var(--line); border-radius: 14px; background: color-mix(in srgb, var(--theme-soft) 54%, var(--white)); }
.account-avatar { flex: 0 0 41px; width: 41px; height: 41px; display: grid; place-items: center; border-radius: 13px; background: var(--white); color: var(--green); font-size: 22px; }
.account-identity-copy { min-width: 0; display: grid; gap: 4px; }
.account-identity-copy strong { overflow-wrap: anywhere; font-size: 12px; }
.account-identity-copy span { overflow-wrap: anywhere; color: var(--muted); font-size: 10px; }
.account-status { flex: 0 0 auto; margin-left: auto; padding: 6px 9px; border: 1px solid color-mix(in srgb, var(--green) 18%, var(--line)); border-radius: 99px; background: var(--white); color: var(--green); font-size: 9px; }
.account-status::before { content: ""; display: inline-block; width: 6px; height: 6px; margin: 0 5px 1px 0; border-radius: 50%; background: var(--theme-accent); }
.account-pending-email { padding: 10px 12px; border-left: 2px solid var(--gold); background: color-mix(in srgb, var(--gold) 9%, var(--white)); color: var(--muted); font-size: 10px; line-height: 1.7; overflow-wrap: anywhere; }
.account-details { padding: 17px 0; border-bottom: 1px solid var(--line); }
.account-details:first-of-type { margin-top: 6px; }
.account-details summary { color: var(--ink); font-size: 12px; font-weight: 700; cursor: pointer; list-style: none; }
.account-details summary::-webkit-details-marker { display: none; }
.account-details summary::after { content: "+"; float: right; color: var(--green); font-size: 17px; font-weight: 400; line-height: 12px; }
.account-details[open] summary::after { content: "−"; }
.account-details .account-form-copy { margin: 12px 0 6px; }
.account-signup-closed { padding: 11px 13px; border: 1px solid color-mix(in srgb,var(--gold) 22%,var(--line)); border-radius: 11px; background: color-mix(in srgb,var(--gold) 8%,var(--white)); }
.account-danger-zone summary { color: var(--red); }
.account-delete-confirm { display: flex; align-items: flex-start; gap: 8px; line-height: 1.6; }
.account-delete-confirm input { flex: 0 0 auto; width: 16px; min-height: 16px; margin: 1px 0 0; accent-color: var(--red); }
.account-danger { min-height: 43px; padding: 10px 15px; border: 1px solid color-mix(in srgb,var(--red) 65%,#fff); border-radius: 10px; background: color-mix(in srgb,var(--red) 9%,var(--white)); color: var(--red); font-size: 12px; font-weight: 750; }
.account-danger:hover:not(:disabled) { background: color-mix(in srgb,var(--red) 15%,var(--white)); }
.account-form-compact { margin-top: 10px; }
.account-center-footer { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding-top: 20px; }
.account-center-footer a { color: var(--muted); font-size: 11px; text-decoration: underline; text-underline-offset: 3px; }
.account-feedback { margin: 19px 0 0; padding: 12px 14px; border-radius: 11px; font-size: 11px; line-height: 1.75; overflow-wrap: anywhere; }
.account-feedback-notice { border: 1px solid color-mix(in srgb, var(--green) 17%, var(--line)); background: var(--theme-soft); color: var(--green); }
.account-feedback-error { border: 1px solid color-mix(in srgb, var(--red) 23%, var(--line)); background: color-mix(in srgb, var(--red) 7%, var(--white)); color: var(--red); }
.account-footer-note { margin: 21px auto 0; text-align: center; color: var(--muted); font-size: 10px; line-height: 1.8; }

/* Bring account surfaces in line with the refreshed course-map visual system. */
.account-header {
  background:color-mix(in srgb,var(--white) 82%,transparent);
  border-bottom-color:color-mix(in srgb,var(--line) 72%,transparent);
  box-shadow:0 5px 24px color-mix(in srgb,var(--ink) 5%,transparent);
  backdrop-filter:blur(18px) saturate(1.15);-webkit-backdrop-filter:blur(18px) saturate(1.15);
}
.account-brand>span {
  display:grid;place-items:center;width:34px;height:34px;border-radius:11px;
  background:linear-gradient(145deg,var(--theme-focus),var(--green));color:#fff!important;
  font-size:18px!important;box-shadow:0 5px 12px color-mix(in srgb,var(--green) 22%,transparent);
}
.account-card {
  border-color:color-mix(in srgb,var(--theme-accent) 27%,var(--line));
  background:linear-gradient(145deg,color-mix(in srgb,var(--theme-card) 97%,var(--white)),color-mix(in srgb,var(--theme-soft) 24%,var(--theme-card)) 70%);
  box-shadow:0 18px 46px color-mix(in srgb,var(--ink) 9%,transparent),0 4px 0 color-mix(in srgb,var(--green) 5%,transparent),inset 0 1px 0 #ffffffc9;
}
.account-card-mark { animation:account-mark-float 6s ease-in-out infinite; }
.account-tabs button { transition:color .2s,background .2s,box-shadow .2s,transform .2s; }
.account-tabs button:not([aria-selected="true"]):hover { background:color-mix(in srgb,var(--theme-soft) 70%,var(--white));color:var(--green); }
.account-tabs button[aria-selected="true"] { box-shadow:0 2px 8px color-mix(in srgb,var(--green) 10%,transparent),inset 0 1px 0 #ffffffc9; }
.account-form input { box-shadow:inset 0 1px 2px color-mix(in srgb,var(--ink) 3%,transparent); }
.account-primary { border-color:transparent;background:linear-gradient(125deg,var(--green),color-mix(in srgb,var(--green) 72%,var(--theme-focus)));box-shadow:0 5px 12px color-mix(in srgb,var(--green) 18%,transparent),inset 0 1px 0 #ffffff36; }
.account-primary:hover:not(:disabled),.account-secondary:hover:not(:disabled) { transform:translateY(-2px);box-shadow:0 8px 18px color-mix(in srgb,var(--green) 17%,transparent); }
@keyframes account-mark-float { 0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)} }
@media(prefers-reduced-motion:reduce) { .account-card-mark,.account-tabs button { animation:none;transition:none; } }

@media (max-width: 720px) {
  .account-header { min-height: 64px; padding: 9px 18px; flex-wrap: wrap; gap: 7px 12px; }
  .account-brand strong { font-size: 19px; }
  .account-header nav { order: 3; width: 100%; justify-content: center; gap: clamp(14px, 5vw, 27px); margin: 0; padding: 2px 0 5px; font-size: 11px; }
  .account-theme-mount { margin-left: auto; }
  .account-main { width: min(100% - 28px, 560px); padding-top: 32px; }
  .account-intro { margin-bottom: 20px; }
  .account-intro > p:last-child { font-size: 11px; }
  .account-card { min-height: 380px; padding: 34px 22px 28px; border-radius: 21px; }
  .account-card-mark { width: 100px; height: 100px; top: -40px; right: -30px; }
  .account-card-heading h2 { font-size: 23px; }
  .account-identity-card { align-items: flex-start; flex-wrap: wrap; }
  .account-status { margin-left: 53px; margin-top: -2px; }
}
@media (max-height: 900px) {
  .account-main { padding-top: 18px; padding-bottom: 18px; }
  .account-intro { display: none; }
  .account-card { min-height: 0; padding-top: 23px; padding-bottom: 20px; border-radius: 20px; }
  .account-card-heading { margin: 0 0 14px; }
  .account-card-heading h2 { margin-bottom: 4px; }
  .account-tabs { margin-bottom: 10px; }
  .account-form { gap: 5px; }
  .account-form label { margin-top: 2px; }
  .account-form input { min-height: 38px; padding-top: 7px; padding-bottom: 7px; }
  .account-submit { margin-top: 4px; }
  .account-form-links { gap: 9px; }
  .account-feedback { margin-top: 10px; padding: 9px 11px; }
  .account-footer-note { margin-top: 10px; }
  .account-details { padding: 12px 0; }
  .account-center-footer { padding-top: 12px; }
}
@media (max-height: 720px) {
  .account-main { padding-top: 10px; padding-bottom: 10px; }
  .account-header { min-height: 64px; }
  .account-card { padding: 17px clamp(18px, 5vw, 42px) 15px; }
  .account-card-heading h2 { font-size: 22px; }
  .account-card-heading > p:last-child { font-size: 11px; line-height: 1.55; }
  .account-tabs button { min-height: 34px; }
  .account-form input { min-height: 35px; padding: 6px 10px; }
  .account-primary,.account-secondary { min-height: 38px; padding: 8px 14px; }
  .account-text-button { padding-top: 5px; padding-bottom: 5px; }
  .account-privacy-note { margin-top: 0; line-height: 1.45; }
  .account-footer-note { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .account-primary,.account-secondary,.account-form input { transition: none; }
}