/* ============================================================
   联系页：左侧信息 / 右侧表单 / 校验状态 / 成功反馈
   ============================================================ */

.contact-wrap {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(44px, 7vw, 120px);
  align-items: start;
  padding: calc(var(--header-h) + clamp(50px, 7vw, 92px)) var(--gutter)
    clamp(80px, 10vw, 130px);
}

/* ---------- 左侧介绍 ---------- */

.contact-intro h1 {
  margin: 26px 0 0;
  font-family: var(--font-display);
  font-size: clamp(46px, 6.2vw, 92px);
  font-weight: 400;
  line-height: 1.06;
  letter-spacing: 0.01em;
}

.contact-intro h1 em {
  font-style: italic;
  font-weight: 300;
  color: var(--accent);
}

.contact-lead {
  max-width: 470px;
  margin: 30px 0 0;
  font-size: 13px;
  line-height: 2.05;
  color: var(--ink-2);
  text-wrap: pretty;
}

.contact-details {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px 40px;
  max-width: 540px;
  margin-top: clamp(40px, 6vw, 64px);
}

.detail {
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.detail-label {
  display: block;
  margin-bottom: 10px;
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.detail-value {
  display: block;
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  letter-spacing: 0.02em;
  color: var(--ink);
}

a.detail-value {
  width: fit-content;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}

a.detail-value:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.socials {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}

.socials a {
  font-size: 13px;
  color: var(--ink);
  transition: color 0.3s var(--ease);
}

.socials a span {
  display: inline-block;
  font-size: 11px;
  color: var(--muted);
  transition: transform 0.3s var(--ease);
}

.socials a:hover {
  color: var(--accent);
}

.socials a:hover span {
  transform: translate(2px, -2px);
}

/* ---------- 右侧表单面板 ---------- */

.contact-panel {
  position: relative;
  padding: clamp(26px, 3.4vw, 48px);
  background: #faf9f6;
  border: 1px solid var(--line);
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.panel-label {
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.availability {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
}

.availability i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(154, 126, 85, 0.16);
  animation: dotPulse 2.6s ease-in-out infinite;
}

.contact-form {
  padding-top: 26px;
}

.field {
  margin-bottom: 20px;
}

.field label {
  display: block;
  margin-bottom: 8px;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.req {
  color: var(--accent);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 10px 0;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  border-radius: 0;
  background: transparent;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  outline: none;
  transition: border-color 0.3s var(--ease);
  -webkit-appearance: none;
  appearance: none;
}

.field textarea {
  min-height: 132px;
  resize: vertical;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #a5a29a;
  font-size: 13px;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-bottom-color: var(--ink);
}

.field.has-error input,
.field.has-error select,
.field.has-error textarea {
  border-bottom-color: #a54832;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.select-wrap {
  position: relative;
}

.select-wrap select {
  padding-right: 26px;
  color: var(--ink-2);
  cursor: pointer;
}

.select-wrap select:valid {
  color: var(--ink);
}

.select-arrow {
  position: absolute;
  right: 4px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-right: 1px solid var(--ink-2);
  border-bottom: 1px solid var(--ink-2);
  transform: translateY(-70%) rotate(45deg);
  pointer-events: none;
}

.field-error {
  min-height: 16px;
  margin: 6px 0 0;
  font-size: 11px;
  line-height: 1.5;
  color: #a54832;
}

.field-foot {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.char-count {
  flex: none;
  margin-top: 6px;
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.btn-submit {
  width: 100%;
  margin-top: 6px;
}

.form-note {
  margin: 14px 0 0;
  font-size: 10px;
  line-height: 1.8;
  color: var(--muted);
}

.form-status {
  min-height: 18px;
  margin: 10px 0 0;
  font-size: 11px;
  color: var(--ink-2);
}

/* ---------- 提交成功状态 ---------- */

.form-success {
  padding: clamp(20px, 4vw, 46px) 0 clamp(10px, 2vw, 20px);
  animation: successIn 0.7s var(--ease-out) both;
}

.form-success[hidden] {
  display: none;
}

.success-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 24px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--accent);
}

.success-eyebrow {
  margin: 0 0 8px;
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.form-success h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(30px, 3.6vw, 42px);
  font-weight: 400;
  line-height: 1.2;
}

.form-success > p:not(.success-eyebrow) {
  max-width: 380px;
  margin: 0 0 28px;
  font-size: 13px;
  line-height: 1.95;
  color: var(--ink-2);
}

.form-success strong {
  font-weight: 500;
  color: var(--ink);
}

@keyframes successIn {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes dotPulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.45;
  }
}

/* ---------- 响应式 ---------- */

@media (max-width: 1024px) {
  .contact-wrap {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .contact-lead,
  .contact-details {
    max-width: 620px;
  }

  .contact-intro h1 {
    font-size: clamp(46px, 8vw, 74px);
  }
}

@media (max-width: 640px) {
  .contact-wrap {
    padding-top: calc(var(--header-h) + 40px);
    gap: 40px;
  }

  .contact-intro h1 {
    margin-top: 20px;
    font-size: clamp(40px, 12vw, 56px);
  }

  .contact-lead {
    margin-top: 22px;
    font-size: 12.5px;
  }

  .contact-details {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 36px;
  }

  .contact-panel {
    padding: 22px;
  }

  .field-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .panel-head {
    flex-wrap: wrap;
  }
}

@media (max-width: 420px) {
  .contact-panel {
    padding: 18px;
  }
}