.page-contact {
  --contact-pad: clamp(22px, 3.6vw, 44px);
  --contact-card-edge: #2F3C56;
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-contact .grid-12 > * {
  min-width: 0;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: clamp(26px, 4.6vw, 58px) 0 clamp(20px, 3vw, 34px);
  border-bottom: 1px solid var(--edge);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: clamp(64px, 12vw, 148px);
  height: 3px;
  background: var(--brick);
}

.page-contact .contact-hero__title {
  margin: 14px 0 20px;
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .contact-lead {
  margin-top: clamp(20px, 3vw, 34px);
}

/* ---------- 联系大卡片 ---------- */

.page-contact .contact-reach {
  align-items: start;
}

.page-contact .contact-card {
  position: relative;
  padding: var(--contact-pad);
  overflow: hidden;
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--brick) 0%, var(--brick-deep) 46%, transparent 100%);
}

.page-contact .contact-card__title {
  margin: 6px 0 6px;
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(22px, 2.6vw, 30px);
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .contact-card__hint {
  margin: 0 0 clamp(14px, 2vw, 22px);
}

.page-contact .contact-channel {
  padding: clamp(16px, 2.4vw, 24px) 0;
  border-top: 1px solid var(--edge);
}

.page-contact .contact-channel--last {
  padding-bottom: 0;
}

.page-contact .contact-channel__key {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--grey);
}

.page-contact .contact-channel__value {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-weight: 600;
  font-size: clamp(19px, 4.6vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.page-contact .contact-channel__address {
  margin: 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.7;
  color: var(--paper);
  max-width: 42em;
}

.page-contact .contact-inline {
  color: var(--gold);
  font-weight: 600;
  overflow-wrap: anywhere;
}

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

/* ---------- 响应节奏 ---------- */

.page-contact .timeband {
  margin: clamp(20px, 3vw, 32px) 0 clamp(20px, 3vw, 32px);
  padding: clamp(18px, 2.6vw, 26px) clamp(18px, 2.6vw, 28px);
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: var(--radius);
}

.page-contact .timeband__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.page-contact .timeband__note {
  font-size: 13px;
  color: var(--grey);
  letter-spacing: 0.04em;
}

.page-contact .timeband__bar {
  position: relative;
  height: 10px;
  border: 1px solid var(--grid);
  border-radius: 999px;
  background: var(--black);
  overflow: hidden;
}

.page-contact .timeband__fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--neon) 0%, var(--gold) 100%);
  opacity: 0.8;
}

.page-contact .timeband__scale {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-size: 12px;
  color: var(--grey);
  letter-spacing: 0.08em;
}

.page-contact .channel-compare {
  display: grid;
  gap: var(--gap);
  grid-template-columns: 1fr;
}

.page-contact .channel-card {
  padding: clamp(20px, 2.8vw, 28px);
  border-left: 3px solid var(--edge);
}

.page-contact .channel-card__tag {
  display: inline-block;
  margin-bottom: 12px;
}

.page-contact .channel-card p {
  margin: 0;
}

/* ---------- 编号章节通用 ---------- */

.page-contact .chapter--flush {
  margin-top: 0;
}

/* ---------- 发信前准备 ---------- */

.page-contact .prepare-list {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  border-top: 1px solid var(--edge);
}

.page-contact .prepare-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: clamp(18px, 2.6vw, 26px) 0;
  border-bottom: 1px solid var(--edge);
}

.page-contact .prepare-item__no {
  display: block;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--brick-light);
}

.page-contact .prepare-item__body h3 {
  margin: 0 0 8px;
}

.page-contact .prepare-item__body p {
  margin: 0;
  max-width: 62ch;
  color: var(--paper);
}

/* ---------- 三类咨询 ---------- */

.page-contact .routing-grid {
  display: grid;
  gap: calc(var(--gap) + 6px);
  grid-template-columns: 1fr;
  margin-top: clamp(26px, 4vw, 42px);
}

.page-contact .routing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 34px clamp(20px, 2.6vw, 26px) clamp(20px, 2.6vw, 26px);
  background: var(--panel);
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  box-shadow: var(--shadow-stack);
  transition: transform 160ms var(--ease), border-color 160ms var(--ease);
}

.page-contact .routing-card:hover,
.page-contact .routing-card:focus-within {
  transform: translateY(-2px);
  border-color: var(--contact-card-edge);
}

.page-contact .routing-card__tab {
  position: absolute;
  top: 0;
  left: 18px;
  transform: translateY(-50%);
  padding: 3px 10px;
  background: var(--brick);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.page-contact .routing-card__title {
  margin: 0 0 8px;
}

.page-contact .routing-card__lead {
  margin: 0 0 16px;
  color: var(--grey);
  font-size: 14px;
  line-height: 1.7;
}

.page-contact .routing-card__toggle {
  align-self: flex-start;
  margin-top: auto;
  padding: 7px 14px;
  background: transparent;
  border: 1px solid var(--grid);
  border-radius: var(--radius);
  color: var(--neon);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-contact .routing-card__toggle:hover {
  border-color: var(--neon);
  background: rgba(47, 214, 208, 0.08);
}

.page-contact .routing-card__panel {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px dashed var(--grid);
}

.page-contact .routing-card__panel[hidden] {
  display: none;
}

.page-contact .routing-card__panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--grey);
}

/* ---------- 商务合作 ---------- */

.page-contact .partner-panel {
  padding: clamp(20px, 2.8vw, 30px);
}

.page-contact .partner-panel > p:first-child {
  margin-top: 0;
}

.page-contact .partner-list {
  list-style: none;
  margin: 18px 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .partner-list li {
  position: relative;
  padding-left: 18px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .partner-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 6px;
  height: 6px;
  background: var(--gold);
}

.page-contact .partner-list strong {
  color: var(--paper);
  font-weight: 700;
}

.page-contact .contact-aside {
  margin-top: clamp(24px, 3.4vw, 36px);
}

.page-contact .contact-aside__title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-contact .contact-aside p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--grey);
}

.page-contact .contact-aside a {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .contact-next {
  margin-top: clamp(24px, 3.4vw, 36px);
  padding-top: clamp(18px, 2.4vw, 24px);
  border-top: 1px solid var(--edge);
}

.page-contact .contact-next__text {
  margin: 0 0 14px;
  color: var(--paper);
}

.page-contact .contact-next__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin: 0;
}

/* ---------- 收尾 ---------- */

.page-contact .contact-closing-figure {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
}

.page-contact .contact-closing-figure .figure__frame img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .legal-strip {
  padding: clamp(18px, 2.4vw, 24px) clamp(18px, 2.6vw, 28px);
  background: var(--panel);
  border: 1px solid var(--edge);
  border-left: 3px solid var(--grid);
  border-radius: var(--radius);
}

.page-contact .legal-strip__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--grey);
}

.page-contact .legal-strip__key {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--grey);
  opacity: 0.8;
}

.page-contact .legal-strip__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--edge);
  font-size: 13px;
  line-height: 1.65;
  color: var(--grey);
  opacity: 0.85;
}

/* ---------- 平板 ---------- */

@media (min-width: 640px) {
  .page-contact .prepare-item {
    grid-template-columns: 64px 1fr;
    gap: 20px;
    align-items: start;
  }

  .page-contact .legal-strip__row {
    grid-template-columns: 96px 1fr;
    align-items: baseline;
    gap: 12px;
  }
}

/* ---------- 桌面 ---------- */

@media (min-width: 900px) {
  .page-contact .routing-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .channel-compare {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-contact .contact-channel__value {
    word-break: normal;
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-figure {
    position: sticky;
    top: 112px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .routing-card,
  .page-contact .routing-card__toggle {
    transition: none;
  }

  .page-contact .routing-card:hover,
  .page-contact .routing-card:focus-within {
    transform: none;
  }
}