body.register-page {
  --register-ink: #221d1a;
  --register-muted: #776d67;
  --register-paper: #f3eee8;
  --register-panel: #fffdf9;
  --register-line: #ded4cb;
  --register-accent: #8f2942;
  --register-accent-dark: #3c222b;
  --register-cream: #f1ddbc;
  min-height: 100svh;
  background:
    radial-gradient(circle at 8% 18%, rgba(143, 41, 66, 0.1), transparent 25rem),
    radial-gradient(circle at 92% 86%, rgba(177, 118, 80, 0.09), transparent 28rem),
    var(--register-paper);
  color: var(--register-ink);
}

.register-page .page-shell {
  width: min(1240px, calc(100% - 48px));
  margin: 0 auto;
}

.register-header {
  display: flex;
  align-items: center;
  width: min(1240px, calc(100% - 48px));
  min-height: 92px;
  margin: 0 auto;
  border-bottom: 1px solid rgba(88, 66, 58, 0.2);
}

.register-brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--register-ink);
}

.register-brand-media {
  display: block;
  width: 132px;
}

.register-brand-media img {
  display: block;
  width: 100%;
  height: auto;
}

.register-shell {
  display: grid;
  grid-template-columns: minmax(360px, 0.86fr) minmax(520px, 1.14fr);
  gap: clamp(32px, 4vw, 58px);
  align-items: stretch;
  min-height: calc(100svh - 92px);
  padding: clamp(42px, 6vw, 78px) 0;
}

.register-intro {
  position: relative;
  isolation: isolate;
  min-width: 0;
  min-height: clamp(620px, calc(100svh - 170px), 740px);
  overflow: hidden;
  border: 1px solid rgba(88, 66, 58, 0.28);
  background:
    linear-gradient(180deg, rgba(28, 20, 22, 0.02) 0%, rgba(28, 20, 22, 0.08) 46%, rgba(28, 17, 21, 0.82) 100%),
    url("register-background.e14a2c304bb1.webp") center 44% / cover no-repeat;
  box-shadow: 0 28px 76px rgba(55, 37, 33, 0.18);
}

.register-intro::before {
  position: absolute;
  z-index: 0;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(31, 19, 23, 0.18), transparent 42%, rgba(31, 19, 23, 0.12)),
    linear-gradient(180deg, transparent 54%, rgba(31, 18, 23, 0.58));
  content: "";
  pointer-events: none;
}

.register-intro::after {
  position: absolute;
  z-index: 1;
  inset: 18px;
  border: 1px solid rgba(255, 247, 239, 0.3);
  content: "";
  pointer-events: none;
}

.register-intro h1 {
  position: absolute;
  z-index: 2;
  right: clamp(28px, 4vw, 50px);
  bottom: clamp(34px, 5vw, 58px);
  left: clamp(28px, 4vw, 50px);
  margin: 0;
  color: #fffaf5;
  font-family: "Songti SC", "STSong", Georgia, serif;
  font-size: clamp(4rem, 6.4vw, 6.2rem);
  font-weight: 650;
  line-height: 0.92;
  letter-spacing: -0.075em;
  text-shadow: 0 3px 24px rgba(18, 10, 13, 0.48);
}

.register-intro h1 em {
  display: inline-block;
  margin-top: 8px;
  color: #efb7c4;
  font-style: normal;
}

.register-panel {
  position: relative;
  min-width: 0;
  padding: clamp(26px, 4vw, 46px);
  overflow: hidden;
  border: 1px solid rgba(88, 66, 58, 0.22);
  background: rgba(255, 253, 249, 0.94);
  box-shadow: 0 26px 80px rgba(63, 40, 34, 0.11);
}

.register-panel::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 96px;
  height: 4px;
  background: var(--register-accent);
  content: "";
}

.register-panel-heading {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
}

.register-panel-heading .eyebrow {
  color: var(--register-accent) !important;
  font-size: 0.67rem;
}

.register-panel-heading h2 {
  margin: 8px 0 0;
  font-family: "Songti SC", "STSong", Georgia, serif;
  font-size: clamp(1.65rem, 3vw, 2.25rem);
  font-weight: 650;
  letter-spacing: -0.035em;
}

.register-panel-description {
  margin: 13px 0 0;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(88, 66, 58, 0.17);
  color: var(--register-muted);
  font-size: 0.86rem;
  line-height: 1.65;
}

.register-form {
  display: grid;
  gap: 20px;
  margin-top: 22px;
}

.register-error-summary {
  padding: 12px 14px;
  border-left: 3px solid var(--danger);
  background: #fbeceb;
  color: var(--danger);
  font-size: 0.88rem;
}

.register-error-summary ul {
  margin: 0;
  padding-left: 1.15rem;
}

.register-fields-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 16px;
}

.register-field {
  display: grid;
  min-width: 0;
  gap: 7px;
}

.register-field > label {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
  color: var(--register-ink);
  font-size: 0.86rem;
  font-weight: 800;
}

.register-field > label small {
  color: #9a8e87;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.register-field input:not([type="checkbox"]) {
  min-width: 0;
  height: 52px;
  padding: 0 14px;
  border: 1px solid #cfc2b8;
  border-radius: 0;
  outline: none;
  background: #fff;
  color: var(--register-ink);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.register-field input::placeholder {
  color: #aaa09a;
  font-size: 0.82rem;
}

.register-field input:focus {
  border-color: var(--register-accent);
  box-shadow: 0 0 0 3px rgba(143, 41, 66, 0.1);
  background: #fffdfb;
}

.register-field.is-invalid input:not([type="checkbox"]) {
  border-color: #b94c4c;
  background: #fffafa;
}

.register-field .field-error,
.register-check .field-error {
  color: var(--danger);
  font-size: 0.76rem;
  line-height: 1.45;
}

.register-captcha-field {
  padding-top: 1px;
}

.register-captcha-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 176px;
  gap: 12px;
  align-items: stretch;
}

.register-captcha-image-button {
  height: 52px;
  padding: 0;
  overflow: hidden;
  border: 1px solid #cfc2b8;
  border-radius: 0;
  background: #f7f1eb;
}

.register-captcha-image-button:hover,
.register-captcha-image-button:focus-visible {
  border-color: var(--register-accent);
}

.register-captcha-image-button img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.register-captcha-image-button.is-loading img {
  opacity: 0.5;
}

.register-captcha-help {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  color: #8d817a;
  font-size: 0.72rem;
}

.register-captcha-help button {
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: var(--register-accent);
  font-size: 0.72rem;
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.register-checks {
  display: grid;
  gap: 9px;
  padding-top: 2px;
}

.register-check {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 0 9px;
  align-items: start;
}

.register-check input {
  grid-column: 1;
  width: 17px;
  height: 17px;
  margin: 1px 0 0;
  border-radius: 0;
  accent-color: var(--register-accent);
}

.register-check label {
  grid-column: 2;
  color: #574e49;
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1.5;
  cursor: pointer;
}

.register-check .field-error {
  grid-column: 2;
}

.register-submit {
  display: flex;
  justify-content: space-between;
  min-height: 56px;
  padding: 0 22px;
  border: 0;
  border-radius: 0;
  background: var(--register-accent-dark);
  color: #fff8ef;
  font-size: 0.9rem;
  font-weight: 850;
  letter-spacing: 0.04em;
  transition: background 0.18s ease, transform 0.18s ease;
}

.register-submit:hover,
.register-submit:focus-visible {
  background: var(--register-accent);
  transform: translateY(-1px);
}

.register-submit span:last-child {
  font-size: 1.12rem;
}

.register-form-footer {
  display: flex;
  justify-content: center;
  gap: 8px;
  align-items: center;
  color: #8a7e77;
  font-size: 0.78rem;
}

.register-form-footer a {
  color: var(--register-accent);
  font-weight: 800;
}

.register-page a:focus-visible,
.register-page button:focus-visible,
.register-page input:focus-visible {
  outline: 2px solid var(--register-accent);
  outline-offset: 3px;
}

@media (min-width: 901px) {
  body.register-page {
    position: relative;
  }

  .register-header {
    position: absolute;
    z-index: 10;
    top: 24px;
    left: max(40px, calc((100vw - 1240px) / 2 + 16px));
    width: auto;
    min-height: 0;
    margin: 0;
    border: 0;
  }

  .register-brand {
    position: relative;
    isolation: isolate;
    gap: 9px;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
  }

  .register-brand::before {
    position: absolute;
    z-index: -1;
    inset: -14px -18px -12px;
    background: radial-gradient(
      ellipse at center,
      rgba(25, 14, 20, 0.42) 0%,
      rgba(25, 14, 20, 0.2) 42%,
      transparent 76%
    );
    content: "";
    filter: blur(10px);
    pointer-events: none;
  }

  .register-brand-media {
    width: 84px;
  }

  .register-brand-media img {
    filter:
      drop-shadow(0 2px 2px rgba(25, 10, 18, 0.86))
      drop-shadow(0 0 8px rgba(255, 248, 239, 0.2));
  }

  .register-shell {
    min-height: 0;
    padding: 16px 0 24px;
  }

  .register-intro {
    min-height: clamp(620px, calc(100svh - 40px), 760px);
  }

  .register-panel {
    padding-block: 28px;
  }

  .register-panel-description {
    margin-top: 10px;
    padding-bottom: 16px;
  }

  .register-form {
    gap: 16px;
    margin-top: 18px;
  }

  .register-fields-grid {
    row-gap: 14px;
  }
}

@media (max-width: 1040px) {
  .register-shell {
    grid-template-columns: minmax(320px, 0.84fr) minmax(500px, 1.16fr);
    gap: 32px;
  }

  .register-intro h1 {
    font-size: clamp(3.6rem, 6.8vw, 5.2rem);
  }
}

@media (max-width: 900px) {
  .register-page .page-shell,
  .register-header {
    width: min(720px, calc(100% - 40px));
  }

  .register-shell {
    grid-template-columns: 1fr;
    gap: 34px;
    min-height: 0;
    padding: 52px 0 72px;
  }

  .register-intro {
    min-height: min(86vw, 650px);
    background-position: center 42%;
  }

  .register-intro h1 {
    font-size: clamp(4rem, 12vw, 6rem);
  }
}

@media (max-width: 720px) {
  .register-page .page-shell,
  .register-header {
    width: min(calc(100% - 20px), 620px);
  }

  .register-header {
    min-height: 48px;
  }

  .register-brand {
    gap: 8px;
  }

  .register-brand-media {
    width: 30px;
  }

  .register-brand-media img {
    border-radius: 50%;
  }

  .register-shell {
    align-content: center;
    gap: 8px;
    min-height: calc(100svh - 48px);
    padding: 8px 0;
  }

  .register-intro {
    height: clamp(92px, calc(100svh - 528px), 300px);
    min-height: 0;
    background-position: center 42%;
    box-shadow: 0 12px 28px rgba(55, 37, 33, 0.14);
  }

  .register-intro::after {
    inset: 6px;
  }

  .register-intro h1 {
    right: 13px;
    bottom: 10px;
    left: 13px;
    font-size: clamp(1.7rem, 7.5vw, 2.1rem);
    line-height: 0.95;
    letter-spacing: -0.06em;
  }

  .register-intro h1 br {
    display: none;
  }

  .register-intro h1 em {
    margin-top: 0;
    margin-left: 0.28em;
  }

  .register-panel {
    padding: 12px;
  }

  .register-panel::before {
    width: 64px;
    height: 3px;
  }

  .register-panel-heading {
    gap: 8px;
  }

  .register-panel-heading .eyebrow {
    font-size: 0.56rem;
  }

  .register-panel-heading h2 {
    margin-top: 2px;
    font-size: 1.28rem;
  }

  .register-panel-description {
    margin-top: 4px;
    padding-bottom: 7px;
    font-size: 0.68rem;
    line-height: 1.4;
  }

  .register-form {
    gap: 7px;
    margin-top: 8px;
  }

  .register-error-summary {
    padding: 7px 9px;
    font-size: 0.72rem;
  }

  .register-fields-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 7px 8px;
  }

  .register-field {
    gap: 3px;
  }

  .register-field > label {
    gap: 6px;
    font-size: 0.69rem;
  }

  .register-field > label small {
    font-size: 0.5rem;
    letter-spacing: 0.04em;
  }

  .register-field input:not([type="checkbox"]) {
    height: 44px;
    padding: 0 9px;
    font-size: 0.78rem;
  }

  .register-field input::placeholder {
    font-size: 0.7rem;
  }

  .register-field .field-error,
  .register-check .field-error {
    font-size: 0.66rem;
  }

  .register-captcha-row {
    grid-template-columns: minmax(0, 1fr) 118px;
    gap: 7px;
  }

  .register-captcha-image-button {
    height: 44px;
  }

  .register-captcha-help {
    gap: 8px;
    font-size: 0.6rem;
    line-height: 1.2;
  }

  .register-captcha-help button {
    font-size: 0.6rem;
  }

  .register-checks {
    gap: 4px;
    padding-top: 0;
  }

  .register-check {
    grid-template-columns: 17px minmax(0, 1fr);
    gap: 0 6px;
  }

  .register-check input {
    width: 15px;
    height: 15px;
    margin-top: 0;
  }

  .register-check label {
    font-size: 0.65rem;
    line-height: 1.3;
  }

  .optional-tag {
    font-size: 0.58rem;
  }

  .register-submit {
    min-height: 44px;
    padding: 0 14px;
    font-size: 0.76rem;
  }

  .register-submit span:last-child {
    font-size: 0.95rem;
  }

  .register-form-footer {
    gap: 5px;
    font-size: 0.66rem;
  }
}

@media (max-width: 410px) {
  .register-page .page-shell,
  .register-header {
    width: calc(100% - 16px);
  }

  .register-panel {
    padding-inline: 10px;
  }

  .register-captcha-row {
    grid-template-columns: minmax(0, 1fr) 110px;
  }

  .register-captcha-help span {
    max-width: 180px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .register-field input,
  .register-submit {
    transition: none;
  }
}