.page-contact {
  --contact-gap: clamp(1rem, 2.2vw, 1.5rem);
  --contact-pad: clamp(1.15rem, 2.6vw, 1.85rem);
  background: var(--ink);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(2.4rem, 6vw, 4.6rem) 0 clamp(2.2rem, 5vw, 3.8rem);
  border-bottom: var(--line);
}

.page-contact .contact-hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-contact .contact-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center right;
  opacity: .4;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(
    102deg,
    rgba(11, 26, 43, .97) 0%,
    rgba(11, 26, 43, .92) 46%,
    rgba(11, 26, 43, .58) 100%
  );
}

.page-contact .contact-hero__inner {
  position: relative;
}

.page-contact .contact-hero h1 {
  margin: .7rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.85rem, 1.15rem + 3.1vw, 3.3rem);
  line-height: 1.14;
  letter-spacing: -.005em;
  color: var(--paper);
  max-width: 24em;
}

.page-contact .contact-hero__lead {
  margin-top: 1.1rem;
  max-width: 44em;
  color: rgba(242, 237, 227, .84);
  font-size: clamp(.98rem, .93rem + .24vw, 1.08rem);
  line-height: 1.85;
}

/* ---------- 渠道卡 ---------- */
.page-contact .channel-deck {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
  margin-top: clamp(2rem, 5vw, 3.2rem);
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: var(--contact-pad);
  background: rgba(19, 42, 65, .88);
  border: var(--line);
  transition: transform .25s ease, background-color .25s ease, border-color .25s ease;
}

.page-contact .channel-card:hover {
  transform: translateY(-4px);
  background: rgba(19, 42, 65, .99);
  border-color: rgba(34, 225, 200, .5);
}

.page-contact .channel-card--mail {
  border-color: rgba(34, 225, 200, .55);
  background: linear-gradient(165deg, rgba(34, 225, 200, .14) 0%, rgba(19, 42, 65, .94) 54%, rgba(19, 42, 65, .88) 100%);
}

.page-contact .channel-card--mail::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--cyan);
}

.page-contact .channel-card__label {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .channel-card__title {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: .03em;
  color: var(--paper);
}

.page-contact .channel-card__value {
  font-size: clamp(1.02rem, .92rem + .55vw, 1.4rem);
  font-weight: 600;
  line-height: 1.4;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .channel-card--hours .channel-card__title {
  color: var(--paper);
  font-size: clamp(1.05rem, .95rem + .5vw, 1.3rem);
}

.page-contact .channel-card__desc {
  font-size: .93rem;
  line-height: 1.75;
  color: rgba(242, 237, 227, .78);
}

.page-contact .channel-card__list {
  margin: .35rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .45rem;
}

.page-contact .channel-card__list li {
  position: relative;
  padding-left: 1rem;
  font-size: .87rem;
  line-height: 1.65;
  color: var(--mist);
}

.page-contact .channel-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .7em;
  width: 6px;
  height: 1px;
  background: var(--orange);
}

/* 在线时段刻度 */
.page-contact .hour-scale {
  display: flex;
  align-items: center;
  gap: .65rem;
  margin: .5rem 0 .2rem;
}

.page-contact .hour-scale__mark {
  font-size: .76rem;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-contact .hour-scale__track {
  position: relative;
  flex: 1 1 auto;
  height: 3px;
  background: rgba(46, 58, 68, .9);
}

.page-contact .hour-scale__track i {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--cyan) 0%, rgba(34, 225, 200, .28) 100%);
}

/* ---------- 邮件怎么写 ---------- */
.page-contact .contact-help__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.8rem, 4vw, 3rem);
}

.page-contact .contact-help h2 {
  margin-top: .5rem;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 1.1rem + 1.5vw, 2.2rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--paper);
}

.page-contact .contact-help__intro .lead {
  margin-top: .9rem;
  max-width: 38em;
  color: rgba(242, 237, 227, .8);
  line-height: 1.85;
}

.page-contact .contact-help__figure {
  margin: clamp(1.3rem, 3vw, 2rem) 0 0;
  border: var(--line);
}

.page-contact .contact-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--line);
}

.page-contact .contact-step {
  display: flex;
  gap: 1rem;
  padding: clamp(.9rem, 2vw, 1.25rem) 0;
  border-bottom: var(--hair);
}

.page-contact .contact-step__num {
  flex: none;
  width: 2.4rem;
  padding-top: .25rem;
  font-size: .8rem;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-contact .contact-step__body h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
  margin-bottom: .35rem;
}

.page-contact .contact-step__body p {
  font-size: .94rem;
  line-height: 1.78;
  color: rgba(242, 237, 227, .76);
}

.page-contact .contact-step__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 225, 200, .35);
}

.page-contact .contact-step__body a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 办公地址 ---------- */
.page-contact .contact-office__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
}

.page-contact .office-block {
  position: relative;
  overflow: hidden;
  padding: clamp(1.3rem, 3vw, 2.2rem);
  border: var(--line);
  background: var(--ink-2);
}

.page-contact .office-block::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .55;
  background-image:
    linear-gradient(var(--grid-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-soft) 1px, transparent 1px);
  background-size: 56px 56px;
}

.page-contact .office-block > * {
  position: relative;
  z-index: 1;
}

.page-contact .office-block__label {
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .office-block__addr {
  margin: .7rem 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.12rem, .98rem + .9vw, 1.6rem);
  line-height: 1.55;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-contact .office-block__note {
  font-size: .9rem;
  line-height: 1.75;
  color: var(--mist);
  padding-top: .9rem;
  border-top: var(--hair);
}

.page-contact .office-rules h3 {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: .03em;
  color: var(--paper);
  margin-bottom: .9rem;
}

.page-contact .office-rules ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .75rem;
}

.page-contact .office-rules li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .93rem;
  line-height: 1.78;
  color: rgba(242, 237, 227, .8);
}

.page-contact .office-rules li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 7px;
  height: 1px;
  background: var(--clay);
}

/* ---------- 商务合作 ---------- */
.page-contact .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
}

.page-contact .partner-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .6rem;
  padding: var(--contact-pad);
  border: var(--line);
  background: rgba(19, 42, 65, .6);
}

.page-contact .partner-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.page-contact .partner-card--content::before { background: var(--moss); }
.page-contact .partner-card--data::before { background: var(--cyan); }
.page-contact .partner-card--column::before { background: var(--clay); }

.page-contact .partner-card__kicker {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
  padding-top: .35rem;
}

.page-contact .partner-card h3 {
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .partner-card p {
  font-size: .93rem;
  line-height: 1.78;
  color: rgba(242, 237, 227, .76);
}

.page-contact .contact-partner__hint {
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
  padding-left: 1rem;
  border-left: 2px solid var(--orange);
  font-size: .93rem;
  line-height: 1.8;
  color: rgba(242, 237, 227, .8);
  max-width: 60em;
}

/* ---------- 收束区 ---------- */
.page-contact .contact-final__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
}

.page-contact .final-card {
  padding: clamp(1.2rem, 2.6vw, 1.9rem);
  border: var(--line);
  background: rgba(19, 42, 65, .55);
}

.page-contact .final-card--legacy {
  border-left: 3px solid var(--clay);
  background: linear-gradient(120deg, rgba(185, 106, 75, .12) 0%, rgba(19, 42, 65, .6) 62%);
}

.page-contact .final-card h2 {
  margin: .55rem 0 .75rem;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 1rem + .8vw, 1.55rem);
  font-weight: 700;
  line-height: 1.32;
  color: var(--paper);
}

.page-contact .final-card p {
  font-size: .93rem;
  line-height: 1.8;
  color: rgba(242, 237, 227, .78);
}

.page-contact .final-card__links {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem 1.6rem;
  margin-top: 1rem;
}

.page-contact .final-card__links a {
  color: var(--cyan);
  text-decoration: none;
  font-size: .93rem;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(34, 225, 200, .35);
  transition: border-color .2s ease;
}

.page-contact .final-card__links a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 图片通用 ---------- */
.page-contact .media img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .channel-deck {
    grid-template-columns: 1.5fr 1fr;
  }
  .page-contact .channel-card--hours {
    grid-column: 1 / -1;
  }
}

@media (min-width: 880px) {
  .page-contact .contact-office__grid {
    grid-template-columns: 1.05fr 1fr;
  }
  .page-contact .contact-final__grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-contact .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-contact .contact-help__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
    align-items: start;
  }
}

@media (min-width: 1060px) {
  .page-contact .channel-deck {
    grid-template-columns: 1.45fr 1fr 1fr;
  }
  .page-contact .channel-card--hours {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .final-card__links a {
    transition: none;
  }
  .page-contact .channel-card:hover {
    transform: none;
  }
}