.page-cooperate {
  padding-bottom: calc(80px + env(safe-area-inset-bottom, 0px));
}

.sub-header-overlay {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  background: linear-gradient(180deg, rgba(230, 0, 18, 0.95) 0%, rgba(230, 0, 18, 0.4) 80%, transparent 100%);
}

.cooperate-hero {
  height: 200px;
  background:
    linear-gradient(180deg, rgba(230, 0, 18, 0.3) 0%, rgba(245, 245, 245, 1) 100%),
    url('/images/bannar/1.jpg') center/cover no-repeat;
  background-color: #d40011;
}

.cooperate-body {
  margin-top: -40px;
  position: relative;
  z-index: 1;
  padding: 0 12px;
}

.cooperate-card {
  background: #fff;
  border-radius: 12px;
  padding: 24px 20px 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.cooperate-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--red);
  text-align: center;
  margin-bottom: 8px;
}

.cooperate-subtitle {
  font-size: 13px;
  color: var(--red);
  text-align: center;
  margin-bottom: 24px;
  line-height: 1.6;
}

.cooperate-field {
  margin-bottom: 20px;
}

.cooperate-label {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.cooperate-input,
.cooperate-textarea {
  width: 100%;
  border: none;
  outline: none;
  font-size: 15px;
  color: var(--text);
  font-family: inherit;
  background: transparent;
}

.cooperate-input::placeholder,
.cooperate-textarea::placeholder {
  color: #ccc;
}

.cooperate-textarea {
  min-height: 72px;
  resize: none;
  line-height: 1.6;
}

.cooperate-select {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 15px;
  color: #ccc;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.cooperate-select.has-value {
  color: var(--text);
}

.cooperate-select svg {
  width: 16px;
  height: 16px;
  color: #ccc;
  flex-shrink: 0;
}

.cooperate-footer {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  width: 100%;
  max-width: 480px;
  padding: 12px 16px;
  padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  background: #fff;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.04);
}

.cooperate-footer .btn-fixed {
  margin: 0;
  width: 100%;
}