/* 联系我们页 — ABB 风格联系表单 */
.contact-page {
  background: #fff;
}

.contact-page-main {
  padding-top: var(--gw-header-h, 5rem);
  min-height: calc(100vh - var(--gw-header-h, 5rem));
}

.contact-form-section {
  padding: 3rem 0 5rem;
}

.contact-form-section__inner {
  max-width: 960px;
  margin: 0 auto;
}

.contact-form-section__accent {
  width: 2.5rem;
  height: 0.25rem;
  background: #ed1c24;
  margin-bottom: 1.5rem;
}

.contact-form-section__title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  color: #141414;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 2.5rem;
}

.contact-form__heading {
  font-size: 1.125rem;
  font-weight: 700;
  color: #141414;
  margin: 0 0 1.75rem;
}

.contact-form__heading--message {
  margin-top: 2.5rem;
}

.contact-form__grid {
  display: grid;
  gap: 1.75rem 2rem;
  margin-bottom: 1.75rem;
}

.contact-form__grid--3 {
  grid-template-columns: 1fr 1fr;
}

.contact-form__grid--2 {
  grid-template-columns: 1fr 1fr;
}

.contact-form__field {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.contact-form__field--wide {
  grid-column: 1 / -1;
}

.contact-form__field--phone {
  max-width: 50%;
  margin-bottom: 0.5rem;
}

.contact-form__label {
  font-size: 0.875rem;
  font-weight: 400;
  color: #94a3b8;
  line-height: 1.4;
}

.contact-form__label--sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.contact-form__input,
.contact-form__select,
.contact-form__textarea {
  width: 100%;
  font-family: inherit;
  font-size: 1rem;
  color: #141414;
  background: transparent;
  border: none;
  border-bottom: 1px solid #cbd5e1;
  border-radius: 0;
  padding: 0.5rem 0;
  outline: none;
  transition: border-color 0.2s;
}

.contact-form__input:focus,
.contact-form__select:focus,
.contact-form__textarea:focus {
  border-bottom-color: #141414;
}

.contact-form__input:invalid:not(:placeholder-shown),
.contact-form__select:invalid,
.contact-form__textarea:invalid:not(:placeholder-shown) {
  border-bottom-color: #ed1c24;
}

.contact-form__select-wrap {
  position: relative;
}

.contact-form__select {
  appearance: none;
  cursor: pointer;
  padding-right: 1.75rem;
}

.contact-form__select-icon {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: #64748b;
}

.contact-form__hint {
  font-size: 0.8125rem;
  color: #94a3b8;
  margin: 0.375rem 0 0;
  line-height: 1.5;
}

.contact-form__textarea {
  border: 1px solid #cbd5e1;
  border-radius: 0;
  padding: 1rem;
  min-height: 12rem;
  resize: vertical;
  line-height: 1.6;
}

.contact-form__textarea::placeholder {
  color: #94a3b8;
}

.contact-form__textarea:focus {
  border-color: #141414;
}

.contact-form__privacy {
  font-size: 0.75rem;
  color: #64748b;
  line-height: 1.65;
  margin: 2rem 0 0;
  max-width: 52rem;
}

.contact-form__privacy-highlight {
  color: #ed1c24;
  font-weight: 600;
}

.contact-form__actions {
  margin-top: 2rem;
}

.contact-form__submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 8rem;
  padding: 0.75rem 2rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
  background: #141414;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.contact-form__submit:hover {
  background: #333;
}

.contact-form__submit:active {
  transform: scale(0.98);
}

.contact-form__submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.contact-form__status {
  margin-top: 1rem;
  font-size: 0.9375rem;
  line-height: 1.5;
}

.contact-form__status--success {
  color: #059669;
}

.contact-form__status--error {
  color: #dc2626;
}

.contact-success-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.contact-success-modal[hidden] {
  display: none !important;
}

.contact-success-modal.is-visible {
  animation: contactSuccessFadeIn 0.25s ease;
}

.contact-success-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.contact-success-modal__card {
  position: relative;
  z-index: 1;
  width: min(100%, 28rem);
  padding: 2.5rem 2rem 2rem;
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.18);
  text-align: center;
  animation: contactSuccessPopIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.contact-success-modal__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  margin: 0 auto 1.25rem;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, #16a34a 0%, #059669 100%);
  box-shadow: 0 8px 24px rgba(22, 163, 74, 0.35);
}

.contact-success-modal__title {
  margin: 0 0 0.75rem;
  font-size: 1.375rem;
  font-weight: 700;
  color: #0f172a;
  letter-spacing: -0.02em;
}

.contact-success-modal__message {
  margin: 0 0 1.75rem;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: #64748b;
}

.contact-success-modal__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 7.5rem;
  padding: 0.75rem 2rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, #f15a24 0%, #ed1c24 100%);
  border: none;
  border-radius: 9999px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(241, 90, 36, 0.35);
  transition: transform 0.15s, box-shadow 0.2s;
}

.contact-success-modal__btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(241, 90, 36, 0.42);
}

.contact-success-modal__btn:active {
  transform: translateY(0);
}

@keyframes contactSuccessFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes contactSuccessPopIn {
  from {
    opacity: 0;
    transform: scale(0.92) translateY(12px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@media (min-width: 768px) {
  .contact-form__grid--3 {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .contact-form__field--wide {
    grid-column: auto;
  }

  .contact-form-section {
    padding: 4rem 0 6rem;
  }
}

@media (max-width: 767px) {
  .contact-form__grid--3,
  .contact-form__grid--2 {
    grid-template-columns: 1fr;
  }

  .contact-form__field--phone {
    max-width: 100%;
  }
}