.page-contact {
  --contact-radius: 14px;
  --contact-pad: clamp(18px, 2.6vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: clamp(22px, 4vw, 48px);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
}

.page-contact .contact-hero__copy .h-display {
  margin: 14px 0 18px;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .contact-hero__media {
  margin: 0;
  position: relative;
}

@media (min-width: 1025px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 68px);
  }
}

/* ---------- 咨询类型带 ---------- */
.page-contact .contact-types__intro {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.7;
}

.page-contact .contact-types__list {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-types__item {
  position: relative;
  padding: 22px 18px 24px;
  border-bottom: 1px solid var(--line);
  transition: background-color var(--t-mid);
}

.page-contact .contact-types__item::before {
  content: "";
  position: absolute;
  left: 18px;
  top: -1px;
  width: 34px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-dark), transparent);
}

.page-contact .contact-types__item:hover {
  background: var(--surface-2);
}

.page-contact .contact-types__index {
  display: block;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold-bright);
}

.page-contact .contact-types__item .h-sub {
  margin: 12px 0 8px;
  font-size: 17px;
}

.page-contact .contact-types__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--slate);
}

@media (min-width: 640px) {
  .page-contact .contact-types__list {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-contact .contact-types__item:nth-child(odd) {
    border-right: 1px solid var(--line);
  }
}

@media (min-width: 1025px) {
  .page-contact .contact-types__list {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-contact .contact-types__item {
    border-bottom: 0;
    border-right: 1px solid var(--line);
    padding: 26px 20px 28px;
  }
  .page-contact .contact-types__item:nth-child(odd) {
    border-right: 1px solid var(--line);
  }
  .page-contact .contact-types__item:last-child {
    border-right: 0;
  }
}

/* ---------- 双栏通道 ---------- */
.page-contact .contact-channel__intro {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.72;
}

.page-contact .contact-channel__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(24px, 3.4vw, 38px);
}

@media (min-width: 1025px) {
  .page-contact .contact-channel__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: start;
    gap: 32px;
  }
}

.page-contact .contact-channel__side {
  display: grid;
  gap: clamp(18px, 2.6vw, 24px);
}

.page-contact .contact-channel__main {
  min-width: 0;
}

.page-contact .contact-info .panel__text,
.page-contact .contact-response .panel__text,
.page-contact .panel--form .panel__text {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 联系信息 ---------- */
.page-contact .contact-lines {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .contact-lines__row {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
}

.page-contact .contact-lines__row:first-child {
  padding-top: 4px;
}

.page-contact .contact-lines__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .contact-lines__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-contact .contact-lines__val {
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--mist);
  word-break: break-word;
}

/* ---------- 响应说明 ---------- */
.page-contact .contact-response__media {
  margin: 18px 0 0;
}

.page-contact .contact-response__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .contact-response__steps {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .contact-response__steps li {
  display: grid;
  grid-template-columns: 28px 1fr;
  align-items: start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
}

.page-contact .contact-response__steps .mono {
  color: var(--jade);
  font-size: 12px;
  letter-spacing: 0.1em;
  padding-top: 2px;
}

/* ---------- 表单 ---------- */
.page-contact .panel--form {
  position: relative;
}

.page-contact .contact-form__req {
  color: var(--cinnabar);
  font-weight: 600;
}

.page-contact .contact-form {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.page-contact .form-field {
  display: grid;
  gap: 7px;
  min-width: 0;
}

.page-contact .form-field label,
.page-contact .form-fieldset legend {
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--mist);
}

.page-contact .form-field input,
.page-contact .form-field textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 11px 13px;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  color: var(--mist);
  background: rgba(10, 22, 38, 0.72);
  border: 1px solid var(--line);
  border-radius: 9px;
  transition: border-color var(--t-fast), background-color var(--t-fast);
}

.page-contact .form-field textarea {
  resize: vertical;
  min-height: 118px;
}

.page-contact .form-field input::placeholder,
.page-contact .form-field textarea::placeholder {
  color: rgba(126, 147, 168, 0.72);
}

.page-contact .form-field input:focus,
.page-contact .form-field textarea:focus {
  outline: none;
  border-color: var(--gold-bright);
  background: rgba(10, 22, 38, 0.92);
}

.page-contact .form-field input:invalid:not(:placeholder-shown),
.page-contact .form-field textarea:invalid:not(:placeholder-shown) {
  border-color: rgba(184, 58, 46, 0.6);
}

.page-contact .form-fieldset {
  border: 0;
  padding: 0;
  margin: 0;
  min-width: 0;
}

.page-contact .form-fieldset legend {
  padding: 0 0 9px;
}

.page-contact .form-choices {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .form-choice {
  position: relative;
  cursor: pointer;
}

.page-contact .form-choice input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  margin: 0;
  cursor: pointer;
}

.page-contact .form-choice span {
  display: inline-block;
  padding: 7px 14px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--mist);
  background: rgba(27, 58, 92, 0.36);
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: border-color var(--t-fast), color var(--t-fast), background-color var(--t-fast);
}

.page-contact .form-choice:hover span {
  border-color: var(--line-strong);
}

.page-contact .form-choice input:checked + span {
  color: var(--gold-bright);
  border-color: var(--gold-bright);
  background: rgba(212, 175, 55, 0.1);
}

.page-contact .form-choice input:focus-visible + span {
  outline: 2px solid var(--gold-bright);
  outline-offset: 2px;
}

.page-contact .form-consent {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 10px;
  align-items: start;
  font-size: 13px;
  line-height: 1.62;
  color: var(--slate);
  cursor: pointer;
}

.page-contact .form-consent input {
  margin: 3px 0 0;
  accent-color: var(--gold-bright);
  width: 16px;
  height: 16px;
}

.page-contact .form-consent a {
  color: var(--gold-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .contact-form__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  padding-top: 4px;
}

.page-contact .form-note {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--slate);
}

.page-contact .contact-form__notice {
  display: none;
}

/* ---------- 合作洽谈 ---------- */
.page-contact .contact-partner .lede {
  max-width: 66ch;
}

.page-contact .partner-details {
  margin-top: clamp(24px, 3vw, 34px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--contact-radius);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.page-contact .partner-details > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px var(--contact-pad);
  font-family: var(--font-serif);
  font-size: 17px;
  color: var(--mist);
  cursor: pointer;
  list-style: none;
  transition: background-color var(--t-mid);
}

.page-contact .partner-details > summary::-webkit-details-marker {
  display: none;
}

.page-contact .partner-details > summary:hover {
  background: var(--surface-2);
}

.page-contact .partner-details > summary::after {
  content: "展开";
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold-bright);
  flex-shrink: 0;
}

.page-contact .partner-details[open] > summary::after {
  content: "收起";
}

.page-contact .partner-details[open] > summary {
  border-bottom: 1px solid var(--line);
}

.page-contact .partner-list {
  list-style: none;
  margin: 0;
  padding: 18px var(--contact-pad) 22px;
  display: grid;
  gap: 11px;
}

.page-contact .partner-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--mist);
}

.page-contact .partner-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 9px;
  height: 1px;
  background: var(--jade);
}

.page-contact .contact-partner__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}