:root {
  --portal-bg: #f7f9fc;
  --portal-text: #002742;
  --portal-muted: #425466;
  --portal-blue: #007cff;
  --portal-blue-dark: #002742;
}

* {
  box-sizing: border-box;
}

body.portal-page {
  margin: 0;
  min-height: 100vh;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--portal-bg);
  color: var(--portal-text);
}

.portal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  max-width: 960px;
  margin: 0 auto;
}

.portal-header a.logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.portal-header img {
  height: 28px;
  width: auto;
}

.portal-nav a {
  color: var(--portal-muted);
  text-decoration: none;
  font-size: 14px;
  margin-left: 20px;
}

.portal-nav a:hover {
  color: var(--portal-blue);
}

.portal-main {
  max-width: 480px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

.portal-card {
  background: #fff;
  border-radius: 16px;
  padding: 28px 24px 32px;
  box-shadow: 0 12px 40px -20px rgba(0, 39, 66, 0.25);
}

.portal-card h1 {
  margin: 0 0 8px;
  font-size: 26px;
  line-height: 1.3;
}

.portal-card .lead {
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--portal-muted);
}

.portal-field {
  margin-bottom: 14px;
}

.portal-field label {
  display: block;
  font-size: 13px;
  color: var(--portal-muted);
  margin-bottom: 6px;
}

.portal-field input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #e5eaf1;
  border-radius: 8px;
  font-size: 15px;
}

.portal-field input:focus {
  outline: none;
  border-color: var(--portal-blue);
  box-shadow: 0 0 0 2px rgba(0, 124, 255, 0.15);
}

.portal-row {
  display: flex;
  gap: 10px;
}

.portal-row .portal-field {
  flex: 1;
}

.portal-check {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 12px;
  color: var(--portal-muted);
  margin: 16px 0 20px;
}

.portal-check a {
  color: var(--portal-blue);
}

.portal-btn {
  width: 100%;
  border: none;
  border-radius: 999px;
  padding: 12px 16px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  background: var(--portal-blue);
  cursor: pointer;
}

.portal-btn:hover {
  background: var(--portal-blue-dark);
}

.portal-btn.secondary {
  background: transparent;
  color: var(--portal-blue);
  border: 1px solid var(--portal-blue);
  margin-top: 12px;
}

.portal-hotline {
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: var(--portal-muted);
}

.portal-hotline strong {
  display: block;
  font-size: 20px;
  color: var(--portal-text);
  margin-bottom: 4px;
}

.portal-toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translateX(-50%) translateY(12px);
  background: rgba(0, 39, 66, 0.92);
  color: #fff;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 9999;
  max-width: min(90vw, 360px);
  text-align: center;
}

.portal-toast.is-show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.portal-links {
  margin-top: 20px;
  text-align: center;
  font-size: 14px;
}

.portal-links a {
  color: var(--portal-blue);
  text-decoration: none;
}