* {
  box-sizing: border-box;
}

body {
  --portal-radius-lg: 18px;
  --portal-radius-xl: 28px;
  --portal-glass-bg: linear-gradient(
    135deg,
    rgb(255 255 255 / 68%),
    rgb(255 255 255 / 38%)
  );
  --portal-glass-strong-bg: linear-gradient(
    135deg,
    rgb(255 255 255 / 78%),
    rgb(255 255 255 / 48%)
  );
  --portal-glass-soft-bg: rgb(255 255 255 / 30%);
  --portal-glass-border: rgb(255 255 255 / 72%);
  --portal-glass-muted-border: rgb(173 196 224 / 42%);
  --portal-glass-shadow:
    0 24px 70px rgb(43 83 126 / 16%), inset 0 1px 0 rgb(255 255 255 / 58%);
  --portal-glass-blur: blur(26px) saturate(145%);
  min-height: 100vh;
  margin: 0;
  color: #172033;
  font-family:
    "Inter",
    "PingFang SC",
    "Microsoft YaHei",
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  background-color: #edf6ff;
  background-image:
    linear-gradient(
      135deg,
      rgb(248 251 255 / 86%) 0%,
      rgb(224 243 255 / 74%) 55%,
      rgb(232 249 246 / 70%) 100%
    ),
    var(--portal-background-image, none);
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  background-attachment: fixed;
}

body.is-notice-open,
body.is-contact-open {
  overflow: hidden;
}

.portal-theme-toggle {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 20;
  display: inline-flex;
  gap: 8px;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 13px;
  color: #24324b;
  font: inherit;
  font-size: 14px;
  font-weight: 800;
  background: var(--portal-glass-strong-bg);
  border: 1px solid var(--portal-glass-border);
  border-radius: var(--portal-radius-lg);
  box-shadow:
    0 16px 42px rgb(43 83 126 / 14%),
    inset 0 1px 0 rgb(255 255 255 / 56%);
  cursor: pointer;
  -webkit-backdrop-filter: var(--portal-glass-blur);
  backdrop-filter: var(--portal-glass-blur);
}

.portal-theme-toggle:hover {
  color: var(--portal-primary);
  background: var(--portal-glass-strong-bg);
  border-color: color-mix(
    in srgb,
    var(--portal-primary) 28%,
    var(--portal-glass-border)
  );
}

.portal-theme-toggle:focus-visible {
  outline: 0;
  box-shadow: 0 0 0 4px
    color-mix(in srgb, var(--portal-primary) 18%, transparent);
}

.portal-theme-toggle-icon {
  width: 16px;
  font-size: 16px;
  line-height: 1;
  text-align: center;
}

.portal-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(420px, 540px);
  gap: 20px 36px;
  width: min(1220px, calc(100% - 32px));
  min-height: calc(100vh - 84px);
  margin: 0 auto;
  padding: 48px 0 26px;
  align-items: center;
}

.portal-hero h1 {
  margin: 0 0 8px;
  color: #10223d;
  font-size: 56px;
  line-height: 1.04;
  letter-spacing: 0;
}

.portal-hero p {
  max-width: 620px;
  margin: 0;
  color: #4c5d75;
  font-size: 18px;
  line-height: 1.8;
}

.portal-hero {
  position: relative;
}

.portal-brand {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  padding: 10px 14px;
  color: #24324b;
  background: var(--portal-glass-strong-bg);
  border: 1px solid var(--portal-glass-border);
  border-radius: var(--portal-radius-lg);
  box-shadow:
    0 16px 42px rgb(43 83 126 / 12%),
    inset 0 1px 0 rgb(255 255 255 / 52%);
  -webkit-backdrop-filter: var(--portal-glass-blur);
  backdrop-filter: var(--portal-glass-blur);
}

.portal-logo {
  width: 34px;
  height: 34px;
  object-fit: cover;
  border-radius: 12px;
}

.portal-notice {
  max-width: 620px;
  margin-top: 28px;
  padding: 16px 18px;
  color: #34445c;
  line-height: 1.7;
  background: var(--portal-glass-bg);
  border: 1px solid var(--portal-glass-border);
  border-left: 4px solid var(--portal-primary);
  border-radius: var(--portal-radius-lg);
  box-shadow:
    0 18px 46px rgb(43 83 126 / 12%),
    inset 0 1px 0 rgb(255 255 255 / 52%);
  -webkit-backdrop-filter: var(--portal-glass-blur);
  backdrop-filter: var(--portal-glass-blur);
}

.portal-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  max-width: 620px;
  margin-top: 6px;
}

.portal-action-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 18px;
  color: var(--portal-primary);
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  background: var(--portal-glass-strong-bg);
  border: 1px solid
    color-mix(in srgb, var(--portal-primary) 28%, var(--portal-glass-border));
  border-radius: var(--portal-radius-lg);
  box-shadow:
    0 16px 42px rgb(43 83 126 / 12%),
    inset 0 1px 0 rgb(255 255 255 / 52%);
  cursor: pointer;
  -webkit-backdrop-filter: var(--portal-glass-blur);
  backdrop-filter: var(--portal-glass-blur);
}

.portal-hero p + .portal-hero-actions {
  margin-top: 14px;
}

.portal-action-button:hover {
  color: #fff;
  background: color-mix(
    in srgb,
    var(--portal-primary) 88%,
    rgb(255 255 255 / 16%)
  );
  border-color: color-mix(
    in srgb,
    var(--portal-primary) 72%,
    var(--portal-glass-border)
  );
  box-shadow: 0 18px 42px
    color-mix(in srgb, var(--portal-primary) 28%, rgb(36 58 92 / 16%));
}

.portal-contact-button {
  width: 40px;
  min-width: 40px;
  padding: 0;
}

.portal-contact-button img {
  display: block;
  width: 22px;
  height: 22px;
  object-fit: contain;
}

.portal-contact-button:hover img {
  filter: brightness(0) invert(1);
}

.portal-panel {
  position: relative;
  padding: 28px;
  overflow: hidden;
  background: var(--portal-glass-bg);
  border: 1px solid var(--portal-glass-border);
  border-radius: var(--portal-radius-xl);
  box-shadow: var(--portal-glass-shadow);
  -webkit-backdrop-filter: var(--portal-glass-blur);
  backdrop-filter: var(--portal-glass-blur);
}

.portal-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  padding: 6px;
  overflow: hidden;
  background: rgb(255 255 255 / 32%);
  border: 1px solid var(--portal-glass-muted-border);
  border-radius: var(--portal-radius-lg);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 14%);
  -webkit-backdrop-filter: blur(16px) saturate(145%);
  backdrop-filter: blur(16px) saturate(145%);
}

.portal-tabs button {
  flex: 1 1 0;
  min-width: 0;
  min-height: 42px;
  padding: 0 14px;
  color: #4d607c;
  font: inherit;
  font-weight: 700;
  background: transparent;
  border: 0;
  border-radius: 14px;
  cursor: pointer;
  white-space: nowrap;
}

.portal-tab-label {
  display: inline-block;
}

.portal-tabs button.is-active {
  color: #fff;
  background: color-mix(
    in srgb,
    var(--portal-primary) 88%,
    rgb(255 255 255 / 16%)
  );
  box-shadow: 0 10px 22px
    color-mix(in srgb, var(--portal-primary) 28%, transparent);
}

.portal-form {
  display: grid;
  gap: 16px;
}

.portal-form [hidden] {
  display: none !important;
}

.portal-form label {
  display: grid;
  gap: 6px;
  color: #40516b;
  font-size: 14px;
  font-weight: 700;
}

.portal-form label em {
  color: #dc2626;
  font-style: normal;
}

.portal-form input {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  color: #172033;
  font: inherit;
  font-size: 16px;
  background: rgb(255 255 255 / 56%);
  border: 1px solid rgb(255 255 255 / 68%);
  border-radius: var(--portal-radius-lg);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 54%);
  -webkit-backdrop-filter: blur(12px) saturate(135%);
  backdrop-filter: blur(12px) saturate(135%);
}

.portal-form input::placeholder {
  color: #7f8fa6;
}

.portal-form input:focus {
  outline: 0;
  border-color: color-mix(in srgb, var(--portal-primary) 36%, #bdf4ff);
  box-shadow:
    0 0 0 4px color-mix(in srgb, var(--portal-primary) 18%, transparent),
    inset 0 1px 0 rgb(255 255 255 / 14%);
}

.portal-form label.is-invalid input {
  border-color: #dc2626;
  box-shadow: 0 0 0 4px rgb(220 38 38 / 10%);
}

.portal-form small {
  display: none;
  min-height: 0;
  margin-top: -2px;
  color: #dc2626;
  font-size: 12px;
  font-weight: 600;
  line-height: 16px;
}

.portal-form label.is-invalid small {
  display: block;
}

.portal-submit {
  min-height: 50px;
  color: #fff;
  font: inherit;
  font-weight: 800;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--portal-primary) 92%, #38bdf8),
    #0ea5e9
  );
  border: 0;
  border-radius: var(--portal-radius-lg);
  box-shadow: 0 18px 36px
    color-mix(in srgb, var(--portal-primary) 26%, rgb(1 15 36 / 32%));
  cursor: pointer;
}

.portal-submit:disabled {
  cursor: wait;
  opacity: 0.7;
}

.portal-result {
  margin-top: 18px;
  padding: 16px;
  color: #334155;
  line-height: 1.7;
  background: rgb(255 255 255 / 42%);
  border: 1px solid var(--portal-glass-muted-border);
  border-radius: var(--portal-radius-lg);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 12%);
  -webkit-backdrop-filter: blur(16px) saturate(145%);
  backdrop-filter: blur(16px) saturate(145%);
}

.portal-result.is-success {
  background: rgb(240 253 244 / 54%);
  border-color: rgb(134 239 172 / 58%);
}

.portal-result.is-error {
  background: rgb(255 245 245 / 58%);
  border-color: rgb(252 165 165 / 62%);
}

.portal-result.is-warning {
  background: rgb(255 251 235 / 64%);
  border-color: rgb(253 186 116 / 66%);
}

.portal-result strong {
  display: block;
  margin-bottom: 6px;
  color: #172033;
}

.portal-result ul {
  padding-left: 18px;
  margin: 8px 0 0;
}

.portal-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  min-height: 50px;
  padding: 0 16px 24px;
  color: #64748b;
  font-size: 13px;
}

.portal-footer a {
  color: inherit;
  text-decoration: none;
}

.portal-footer a:hover {
  color: var(--portal-primary);
}

.portal-loading-mask[hidden] {
  display: none !important;
}

.portal-loading-mask {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 24px;
  cursor: wait;
  background: rgb(15 23 42 / 44%);
  -webkit-backdrop-filter: blur(10px) saturate(125%);
  backdrop-filter: blur(10px) saturate(125%);
}

.portal-loading-dialog {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  width: min(360px, 100%);
  padding: 28px 32px;
  color: #172033;
  text-align: center;
  background: var(--portal-glass-strong-bg);
  border: 1px solid var(--portal-glass-border);
  border-radius: var(--portal-radius-xl);
  box-shadow: var(--portal-glass-shadow);
  -webkit-backdrop-filter: blur(28px) saturate(155%);
  backdrop-filter: blur(28px) saturate(155%);
}

.portal-loading-spinner {
  width: 38px;
  height: 38px;
  border: 3px solid color-mix(in srgb, var(--portal-primary) 20%, transparent);
  border-top-color: var(--portal-primary);
  border-radius: 50%;
  animation: portal-loading-spin 0.85s linear infinite;
}

.portal-loading-dialog p {
  margin: 0;
  color: #334155;
  font-size: 15px;
  line-height: 1.6;
}

body.is-portal-loading {
  overflow: hidden;
}

@keyframes portal-loading-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .portal-loading-spinner {
    animation-duration: 1.8s;
  }
}

.portal-notice-modal[hidden],
.portal-contact-modal[hidden],
.portal-toast[hidden] {
  display: none !important;
}

.portal-notice-modal,
.portal-contact-modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 24px;
}

.portal-notice-backdrop,
.portal-contact-backdrop {
  position: absolute;
  inset: 0;
  background: rgb(15 23 42 / 42%);
  -webkit-backdrop-filter: blur(14px) saturate(130%);
  backdrop-filter: blur(14px) saturate(130%);
}

.portal-notice-dialog {
  position: relative;
  z-index: 1;
  width: min(680px, 100%);
  max-height: min(760px, calc(100vh - 48px));
  padding: 28px;
  overflow: auto;
  color: #172033;
  background: var(--portal-glass-strong-bg);
  border: 1px solid var(--portal-glass-border);
  border-radius: var(--portal-radius-xl);
  box-shadow: var(--portal-glass-shadow);
  -webkit-backdrop-filter: blur(28px) saturate(155%);
  backdrop-filter: blur(28px) saturate(155%);
}

.portal-notice-dialog h2 {
  margin: 0 36px 18px 0;
  font-size: 24px;
  line-height: 1.3;
  letter-spacing: 0;
}

.portal-notice-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 34px;
  height: 34px;
  color: #64748b;
  font-size: 28px;
  line-height: 1;
  background: rgb(255 255 255 / 52%);
  border: 1px solid var(--portal-glass-muted-border);
  border-radius: 14px;
  cursor: pointer;
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
}

.portal-notice-content {
  color: #334155;
  line-height: 1.8;
}

.portal-notice-content :where(p, ul, ol, blockquote) {
  margin: 0 0 12px;
}

.portal-notice-content :where(ul, ol) {
  padding-left: 22px;
}

.portal-notice-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--portal-radius-lg);
}

.portal-notice-content table {
  width: 100%;
  border-collapse: collapse;
}

.portal-notice-content :where(td, th) {
  padding: 8px;
  border: 1px solid var(--portal-glass-muted-border);
}

.portal-notice-confirm {
  display: block;
  min-width: 120px;
  min-height: 42px;
  margin: 22px 0 0 auto;
  color: #fff;
  font: inherit;
  font-weight: 800;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--portal-primary) 92%, #38bdf8),
    #0ea5e9
  );
  border: 0;
  border-radius: var(--portal-radius-lg);
  box-shadow: 0 18px 36px
    color-mix(in srgb, var(--portal-primary) 24%, rgb(1 15 36 / 30%));
  cursor: pointer;
}

.portal-contact-dialog {
  position: relative;
  z-index: 1;
  width: min(460px, 100%);
  padding: 28px;
  text-align: center;
  color: #172033;
  background: var(--portal-glass-strong-bg);
  border: 1px solid var(--portal-glass-border);
  border-radius: var(--portal-radius-xl);
  box-shadow: var(--portal-glass-shadow);
  -webkit-backdrop-filter: blur(28px) saturate(155%);
  backdrop-filter: blur(28px) saturate(155%);
}

.portal-contact-image {
  display: block;
  max-width: min(380px, 100%);
  max-height: min(460px, calc(100vh - 150px));
  margin: 0 auto;
  object-fit: contain;
  background: rgb(255 255 255 / 42%);
  border: 1px solid var(--portal-glass-muted-border);
  border-radius: var(--portal-radius-lg);
}

.portal-toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 60;
  max-width: calc(100% - 32px);
  padding: 10px 16px;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
  background: rgb(2 23 50 / 84%);
  border: 1px solid var(--portal-glass-muted-border);
  border-radius: var(--portal-radius-lg);
  box-shadow: 0 16px 40px rgb(15 23 42 / 24%);
  transform: translateX(-50%);
}

body.is-dark {
  --portal-glass-bg: linear-gradient(
    135deg,
    rgb(5 38 82 / 60%),
    rgb(4 22 54 / 46%)
  );
  --portal-glass-strong-bg: linear-gradient(
    135deg,
    rgb(6 48 96 / 66%),
    rgb(4 25 58 / 54%)
  );
  --portal-glass-soft-bg: rgb(5 38 82 / 34%);
  --portal-glass-border: rgb(125 211 252 / 54%);
  --portal-glass-muted-border: rgb(125 211 252 / 24%);
  --portal-glass-shadow:
    0 30px 92px rgb(2 6 23 / 46%), inset 0 1px 0 rgb(255 255 255 / 12%),
    inset 0 0 40px rgb(56 189 248 / 6%);
  color: #e5edf9;
  background-color: #07111f;
  background-image:
    linear-gradient(135deg, rgb(3 12 28 / 78%) 0%, rgb(7 29 62 / 70%) 100%),
    var(--portal-background-image, none);
}

body.is-dark .portal-theme-toggle {
  color: #e5edf9;
  background: var(--portal-glass-strong-bg);
  border-color: var(--portal-glass-border);
  box-shadow:
    0 16px 40px rgb(2 6 23 / 34%),
    inset 0 1px 0 rgb(255 255 255 / 10%);
}

body.is-dark .portal-theme-toggle:hover {
  color: #fff;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--portal-primary) 18%, rgb(15 23 42 / 82%)),
    rgb(30 41 59 / 62%)
  );
  border-color: color-mix(
    in srgb,
    var(--portal-primary) 44%,
    var(--portal-glass-border)
  );
}

body.is-dark .portal-hero h1 {
  color: #f8fafc;
}

body.is-dark .portal-hero p,
body.is-dark .portal-footer {
  color: #aebdd0;
}

body.is-dark .portal-brand,
body.is-dark .portal-notice,
body.is-dark .portal-panel,
body.is-dark .portal-notice-dialog,
body.is-dark .portal-contact-dialog {
  color: #e5edf9;
  background: var(--portal-glass-bg);
  border-color: var(--portal-glass-border);
  box-shadow: var(--portal-glass-shadow);
}

body.is-dark .portal-action-button {
  color: #e5edf9;
  background: var(--portal-glass-strong-bg);
  border-color: color-mix(
    in srgb,
    var(--portal-primary) 36%,
    var(--portal-glass-border)
  );
}

body.is-dark .portal-action-button:hover {
  color: #fff;
  background: var(--portal-primary);
  border-color: var(--portal-primary);
}

body.is-dark .portal-tabs {
  background: rgb(15 23 42 / 42%);
  border-color: var(--portal-glass-muted-border);
}

body.is-dark .portal-tabs button {
  color: #bfcee2;
}

body.is-dark .portal-tabs button.is-active {
  color: #fff;
}

body.is-dark .portal-form label {
  color: #d6e0ed;
}

body.is-dark .portal-form input {
  color: #eef5ff;
  background: rgb(15 23 42 / 52%);
  border-color: rgb(148 163 184 / 24%);
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 8%);
}

body.is-dark .portal-form input::placeholder {
  color: #75849a;
}

body.is-dark .portal-result {
  color: #d5e0ee;
  background: rgb(15 23 42 / 48%);
  border-color: var(--portal-glass-muted-border);
}

body.is-dark .portal-result strong {
  color: #f8fafc;
}

body.is-dark .portal-result.is-success {
  background: rgb(13 36 27 / 62%);
  border-color: rgb(22 101 52 / 72%);
}

body.is-dark .portal-result.is-error {
  background: rgb(43 20 23 / 66%);
  border-color: rgb(127 29 29 / 72%);
}

body.is-dark .portal-loading-dialog {
  color: #f8fafc;
  background: linear-gradient(135deg, rgb(15 23 42 / 88%), rgb(30 41 59 / 82%));
  border-color: var(--portal-glass-muted-border);
}

body.is-dark .portal-loading-dialog p {
  color: #d1dbe9;
}

body.is-dark .portal-notice-backdrop,
body.is-dark .portal-contact-backdrop {
  background: rgb(2 6 23 / 58%);
}

body.is-dark .portal-notice-close {
  color: #d1dbe9;
  background: rgb(30 41 59 / 58%);
  border-color: var(--portal-glass-muted-border);
}

body.is-dark .portal-notice-content {
  color: #d1dbe9;
}

body.is-dark .portal-notice-content :where(td, th) {
  border-color: #334155;
}

body.is-dark .portal-contact-image {
  border-color: var(--portal-glass-muted-border);
}

@media (max-width: 860px) {
  /* 小屏幕宽度只能由浏览器可靠判断，这里把默认服务台自动收拢成简洁表单布局。 */
  .portal-theme-toggle {
    top: 12px;
    right: 12px;
    min-height: 36px;
    padding: 0 11px;
    font-size: 13px;
  }

  .portal-shell {
    grid-template-columns: minmax(0, 560px);
    justify-content: center;
    align-content: start;
    gap: 14px;
    width: min(592px, calc(100% - 32px));
    min-height: auto;
    padding-top: 68px;
    align-items: start;
  }

  .portal-hero {
    padding: 0;
    text-align: center;
  }

  .portal-hero h1 {
    font-size: 38px;
  }

  .portal-hero p,
  .portal-hero-actions {
    margin-left: auto;
    margin-right: auto;
  }

  .portal-hero-actions {
    justify-content: center;
  }

  .portal-hero p {
    font-size: 16px;
    line-height: 1.65;
  }

  .portal-panel {
    padding: 20px;
  }

  .portal-tabs {
    gap: 4px;
    margin-bottom: 18px;
    padding: 4px;
  }

  .portal-tabs button {
    padding: 0 4px;
    font-size: 13px;
    line-height: 1.25;
    text-align: center;
  }

  .portal-tabs.is-wrapped button {
    min-height: 52px;
    padding: 4px 2px;
    white-space: normal;
    overflow-wrap: normal;
  }

  .portal-form {
    gap: 12px;
  }
}