:root {
  --primary: #e4393c;
  --primary-dark: #c1272d;
  --secondary: #00a0e9;
  --success: #07c160;
  --warning: #ff9800;
  --danger: #f44336;
  --dark: #333;
  --gray: #666;
  --light-gray: #999;
  --border: #e0e0e0;
  --bg: #f5f5f5;
  --white: #fff;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  --radius: 8px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--dark);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  text-decoration: none;
  color: inherit;
}

.header {
  background: var(--white);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
}

.logo svg {
  width: 36px;
  height: 36px;
}

.nav {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav a {
  font-size: 15px;
  color: var(--gray);
  transition: color 0.2s;
  position: relative;
  padding: 4px 0;
}

.nav a:hover,
.nav a.active {
  color: var(--primary);
}

.nav a.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-user .btn-auth {
  padding: 6px 16px;
  border: 1px solid var(--primary);
  color: var(--primary);
  border-radius: 20px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
  background: transparent;
}

.nav-user .btn-auth:hover {
  background: var(--primary);
  color: var(--white);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.footer {
  background: var(--white);
  border-top: 1px solid var(--border);
  padding: 32px 20px;
  margin-top: 60px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.footer-col h4 {
  font-size: 14px;
  margin-bottom: 12px;
  color: var(--dark);
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--light-gray);
  margin-bottom: 8px;
  transition: color 0.2s;
}

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

.footer-bottom {
  max-width: 1200px;
  margin: 20px auto 0;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 12px;
  color: var(--light-gray);
}

.compliance-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #e8f5e9;
  color: #2e7d32;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 11px;
  margin-left: 8px;
}

.compliance-badge svg {
  width: 14px;
  height: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border: none;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  gap: 6px;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
}

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

.btn-secondary {
  background: var(--secondary);
  color: var(--white);
}

.btn-secondary:hover {
  background: #0088cc;
}

.btn-success {
  background: var(--success);
  color: var(--white);
}

.btn-success:hover {
  background: #06a850;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--gray);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-lg {
  padding: 14px 36px;
  font-size: 17px;
}

.btn-block {
  width: 100%;
}

.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--dark);
  margin-bottom: 6px;
}

.form-group label .required {
  color: var(--danger);
  margin-left: 2px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  transition: border-color 0.2s;
  outline: none;
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(228, 57, 60, 0.1);
}

.form-group .hint {
  font-size: 12px;
  color: var(--light-gray);
  margin-top: 4px;
}

.form-group .error {
  font-size: 12px;
  color: var(--danger);
  margin-top: 4px;
  display: none;
}

.form-group.has-error input,
.form-group.has-error select {
  border-color: var(--danger);
}

.form-group.has-error .error {
  display: block;
}

.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.alert-info {
  background: #e3f2fd;
  color: #1565c0;
}

.alert-warning {
  background: #fff3e0;
  color: #e65100;
}

.alert-success {
  background: #e8f5e9;
  color: #2e7d32;
}

.alert svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 1px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--light-gray);
  margin-bottom: 20px;
}

.breadcrumb a {
  color: var(--gray);
  transition: color 0.2s;
}

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

.breadcrumb .sep {
  color: var(--border);
}

.secure-notice {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--success);
  padding: 8px 12px;
  background: #e8f5e9;
  border-radius: var(--radius);
  margin-bottom: 16px;
}

.secure-notice svg {
  width: 16px;
  height: 16px;
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--white);
  border-radius: 12px;
  padding: 32px;
  max-width: 480px;
  width: 90%;
  transform: translateY(20px);
  transition: transform 0.3s;
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal h3 {
  font-size: 18px;
  margin-bottom: 16px;
}

.modal p {
  font-size: 14px;
  color: var(--gray);
  margin-bottom: 24px;
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 500;
}

.badge-verified {
  background: #e8f5e9;
  color: #2e7d32;
}

.badge-pending {
  background: #fff3e0;
  color: #e65100;
}

.badge-unverified {
  background: #ffebee;
  color: #c62828;
}

.steps {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 32px;
}

.step {
  display: flex;
  align-items: center;
  gap: 8px;
}

.step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  background: var(--border);
  color: var(--light-gray);
}

.step.active .step-num {
  background: var(--primary);
  color: var(--white);
}

.step.done .step-num {
  background: var(--success);
  color: var(--white);
}

.step-text {
  font-size: 13px;
  color: var(--light-gray);
}

.step.active .step-text {
  color: var(--primary);
  font-weight: 500;
}

.step.done .step-text {
  color: var(--success);
}

.step-line {
  width: 60px;
  height: 2px;
  background: var(--border);
  margin: 0 12px;
}

.step-line.done {
  background: var(--success);
}

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 12px 16px;
    gap: 8px;
  }

  .nav {
    gap: 16px;
    order: 3;
    width: 100%;
    overflow-x: auto;
  }

  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
  }

  .container {
    padding: 12px;
  }

  .steps {
    flex-wrap: wrap;
    gap: 8px;
  }

  .step-line {
    width: 30px;
  }
}