.page-contact {
  --cc-gap: clamp(18px, 3vw, 34px);
  --cc-pad: clamp(18px, 2.6vw, 30px);
  --cc-soft: #C9CFE8;
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(18px, 3.4vw, 44px) 0 clamp(30px, 5.4vw, 68px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(167, 139, 218, 0.18), transparent 58%),
    radial-gradient(80% 70% at 6% 110%, rgba(232, 197, 106, 0.08), transparent 60%);
}

.page-contact .contact-hero__inner {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-contact .contact-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36px, 7.4vw, 82px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--ivory);
  margin: 12px 0 0;
}

.page-contact .contact-hero__lead {
  margin: 20px 0 0;
  max-width: 38em;
  font-size: clamp(15.5px, 1.6vw, 17.5px);
  line-height: 1.85;
  color: var(--cc-soft);
}

.page-contact .contact-hero__facts {
  list-style: none;
  margin: 26px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--star);
}

.page-contact .contact-hero__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(16px, 2vw, 20px);
  letter-spacing: 0.02em;
  color: var(--gold);
  margin-bottom: 3px;
}

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

.page-contact .contact-hero__media .media__frame {
  position: relative;
  border: 1px solid var(--line);
}

.page-contact .contact-hero__media .media__frame::after {
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px solid rgba(232, 197, 106, 0.32);
  pointer-events: none;
}

/* ---------- 左密右疏主体 ---------- */
.page-contact .contact-body {
  padding: clamp(36px, 6vw, 82px) 0;
}

.page-contact .contact-body__inner {
  display: grid;
  gap: clamp(32px, 4.4vw, 50px);
}

.page-contact .contact-body__left {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .contact-body__right {
  display: grid;
  gap: 22px;
  align-content: start;
}

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

.page-contact .cc-h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(23px, 3vw, 33px);
  line-height: 1.28;
  letter-spacing: 0.01em;
  color: var(--ivory);
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--gold);
}

.page-contact .cc-lead {
  margin: 0 0 6px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--star);
}

/* 联系入口卡片 */
.page-contact .entry {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: var(--cc-pad);
}

.page-contact .entry::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 42px;
  background: var(--gold);
}

.page-contact .entry__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-contact .entry__role {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--ivory);
}

.page-contact .entry__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-contact .entry__value {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(14.5px, 1.8vw, 17px);
  line-height: 1.55;
  color: var(--ivory);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .entry__desc {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--star);
}

.page-contact .entry__copy {
  margin-top: 18px;
}

/* 来信四行模板 */
.page-contact .letter {
  list-style: none;
  margin: 4px 0 0;
  padding: 1px;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .letter__item {
  background: var(--ink);
  padding: 18px clamp(16px, 2vw, 22px);
}

.page-contact .letter__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 8px;
}

.page-contact .letter__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.4;
  color: var(--ivory);
}

.page-contact .letter__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--star);
}

.page-contact .letter__media {
  margin: 4px 0 0;
}

.page-contact .letter__media .media__frame {
  border: 1px solid var(--line);
}

.page-contact .letter__tip {
  margin: 0;
  padding: 14px 16px;
  border-left: 2px solid var(--mist);
  background: rgba(167, 139, 218, 0.08);
  font-size: 14px;
  line-height: 1.85;
  color: var(--cc-soft);
}

.page-contact .letter__tip a,
.page-contact .msgform__hint a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 197, 106, 0.45);
}

.page-contact .letter__tip a:hover,
.page-contact .msgform__hint a:hover {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

/* ---------- 响应节奏 ---------- */
.page-contact .contact-rhythm {
  padding: clamp(32px, 5vw, 70px) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(18, 26, 69, 0.72), rgba(10, 15, 44, 0.2));
}

.page-contact .rhythm__track {
  position: relative;
  height: clamp(48px, 7vw, 62px);
  margin: 26px 0 20px;
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(38, 48, 107, 0.85) 39px 40px);
}

.page-contact .rhythm__band {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  transform: translateY(-50%);
  background: linear-gradient(90deg, var(--gold), var(--coral) 58%, var(--mist));
  opacity: 0.85;
}

.page-contact .rhythm__node {
  position: absolute;
  top: 50%;
  width: 11px;
  height: 11px;
  transform: translate(-50%, -50%);
  background: var(--ink);
  border: 1px solid var(--gold);
}

.page-contact .rhythm__node--start { left: 6%; }
.page-contact .rhythm__node--mid { left: 52%; border-color: var(--coral); background: var(--coral); }
.page-contact .rhythm__node--end { left: 92%; }

.page-contact .rhythm__legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .rhythm__legend li {
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--star);
}

.page-contact .rhythm__key {
  display: block;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--gold);
  margin-bottom: 5px;
}

.page-contact .rhythm__note {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--star);
  padding-left: 14px;
  border-left: 1px solid var(--mist);
}

/* ---------- 表单与自查 ---------- */
.page-contact .contact-form-section {
  padding: clamp(34px, 5.4vw, 78px) 0 clamp(10px, 2vw, 24px);
}

.page-contact .contact-form__inner {
  display: grid;
  gap: clamp(28px, 4vw, 46px);
  align-items: start;
}

.page-contact .contact-form__col {
  display: grid;
  gap: 12px;
}

.page-contact .msgform {
  margin-top: 8px;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: var(--cc-pad);
}

.page-contact .msgform__grid {
  display: grid;
  gap: 16px;
}

.page-contact .msgform__field {
  display: grid;
  gap: 8px;
}

.page-contact .msgform__label {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-contact .msgform__input {
  width: 100%;
  min-height: 46px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: var(--ink);
  color: var(--ivory);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  transition: border-color 200ms var(--ease);
}

.page-contact .msgform__input::placeholder {
  color: #5E6892;
}

.page-contact .msgform__input:focus {
  outline: 2px solid var(--gold);
  outline-offset: 1px;
  border-color: var(--gold);
}

.page-contact .msgform__submit {
  margin-top: 20px;
}

.page-contact .msgform__hint {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--star);
  overflow-wrap: anywhere;
}

/* 自查面板 */
.page-contact .selfcheck {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: var(--cc-pad);
}

.page-contact .selfcheck__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-contact .selfcheck__item {
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.page-contact .selfcheck__item:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-contact .selfcheck__link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  text-decoration: none;
  color: var(--ivory);
  transition: color 200ms var(--ease);
}

.page-contact .selfcheck__link:hover,
.page-contact .selfcheck__link:focus-visible {
  color: var(--gold);
}

.page-contact .selfcheck__q {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(15.5px, 1.9vw, 18px);
  line-height: 1.5;
}

.page-contact .selfcheck__arrow {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--coral);
}

.page-contact .selfcheck__text {
  margin: 7px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--star);
}

.page-contact .selfcheck__foot {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--cc-soft);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-contact .msgform__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .rhythm__legend {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.22fr) minmax(0, 0.92fr);
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-body__inner {
    grid-template-columns: minmax(0, 0.82fr) 1px minmax(0, 1.42fr);
    gap: clamp(28px, 3.4vw, 54px);
  }

  .page-contact .contact-body__divider {
    display: block;
    background: linear-gradient(
      180deg,
      rgba(232, 197, 106, 0) 0%,
      var(--gold) 12%,
      var(--gold) 88%,
      rgba(232, 197, 106, 0) 100%
    );
    opacity: 0.6;
  }

  .page-contact .contact-body__left {
    position: sticky;
    top: 28px;
  }

  .page-contact .contact-form__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.82fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-contact .msgform__input,
  .page-contact .selfcheck__link {
    transition: none;
  }
}