.page-contact {
  --ch-pad: clamp(2.4rem, 6vw, 4.8rem);
  --ch-line: 1px solid var(--stone);
  --ch-dim: rgba(34, 52, 77, .45);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  border-bottom: var(--ch-line);
}

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

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .55;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(118deg, rgba(10, 20, 36, .97) 0%, rgba(10, 20, 36, .86) 46%, rgba(10, 20, 36, .42) 100%);
}

.page-contact .contact-hero__wedge {
  position: absolute;
  right: -12%;
  bottom: -22%;
  z-index: 2;
  width: min(540px, 68%);
  aspect-ratio: 1;
  pointer-events: none;
  background: linear-gradient(150deg, rgba(42, 212, 230, .18), rgba(42, 212, 230, 0) 70%);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 3;
  padding-block: clamp(2.2rem, 6vw, 4rem) clamp(2.4rem, 7vw, 5rem);
}

.page-contact .contact-hero__title {
  margin: .8rem 0 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6.6vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -.012em;
  color: var(--white);
}

.page-contact .contact-hero__lead {
  margin: 1.1rem 0 0;
  max-width: 44rem;
  font-size: clamp(.95rem, 2.4vw, 1.02rem);
  line-height: 1.8;
  color: rgba(251, 252, 254, .78);
}

/* ---------- 通用章节头 ---------- */
.page-contact .section-head h2 {
  margin: .35rem 0 .55rem;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 4.6vw, 2.35rem);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .section-head__lead {
  margin: 0;
  max-width: 52ch;
  font-size: .94rem;
  line-height: 1.78;
  color: var(--mute);
}

/* ---------- 客服渠道 ---------- */
.page-contact .channels {
  padding-block: var(--ch-pad);
  background: var(--ink);
  border-bottom: var(--ch-line);
}

.page-contact .channel-list {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--stone);
  border: var(--ch-line);
}

.page-contact .channel {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: 1.5rem 1.35rem 1.35rem;
  background: var(--slate);
}

.page-contact .channel__num {
  font-size: .78rem;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-contact .channel__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.06rem;
  letter-spacing: .02em;
  color: var(--white);
}

.page-contact .channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.02rem, 3.6vw, 1.3rem);
  line-height: 1.35;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .channel__value--addr {
  font-size: clamp(.98rem, 3.2vw, 1.12rem);
  color: var(--white);
}

.page-contact .channel__copy {
  align-self: flex-start;
}

.page-contact .channel__use {
  margin: .35rem 0 0;
  font-size: .9rem;
  line-height: 1.78;
  color: rgba(251, 252, 254, .76);
}

.page-contact .channel__note {
  margin: auto 0 0;
  padding-top: .9rem;
  border-top: var(--ch-line);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .04em;
  color: var(--mute);
}

/* ---------- 在线时段 ---------- */
.page-contact .hours {
  padding-block: var(--ch-pad);
  background: var(--slate);
  border-bottom: var(--ch-line);
}

.page-contact .clock {
  margin-top: 1.9rem;
  max-width: 60rem;
}

.page-contact .clock__track {
  position: relative;
  height: clamp(44px, 9vw, 62px);
  background-color: var(--ink);
  border: var(--ch-line);
  overflow: hidden;
  background-image: repeating-linear-gradient(90deg, var(--stone) 0 1px, transparent 1px 4.1667%);
}

.page-contact .clock__band {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 37.5%;
  width: 37.5%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(90deg, rgba(42, 212, 230, .3), rgba(42, 212, 230, .78));
  border-left: 2px solid var(--cyan);
  border-right: 2px solid var(--cyan);
}

.page-contact .clock__band-label {
  font-size: clamp(.6rem, 2.1vw, .74rem);
  letter-spacing: .06em;
  color: var(--ink);
  white-space: nowrap;
}

.page-contact .clock__marks {
  display: flex;
  justify-content: space-between;
  margin-top: .55rem;
  font-size: .7rem;
  color: var(--mute);
}

.page-contact .hours__facts {
  list-style: none;
  margin: 1.8rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem 2.6rem;
}

.page-contact .hours__facts li {
  display: flex;
  flex-direction: column;
  gap: .18rem;
  font-size: .84rem;
  color: var(--mute);
}

.page-contact .hours__facts .num {
  font-size: 1.24rem;
  color: var(--white);
}

/* ---------- 纠错 ---------- */
.page-contact .correct {
  padding-block: var(--ch-pad);
  background: var(--paper);
  color: var(--ink);
  border-bottom: var(--ch-line);
}

.page-contact .correct .eyebrow {
  color: rgba(10, 20, 36, .6);
}

.page-contact .correct__grid {
  display: grid;
  gap: 2.2rem;
}

.page-contact .correct h2 {
  margin: .35rem 0 .7rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4.8vw, 2.4rem);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .correct__text > p {
  margin: 0 0 1.6rem;
  max-width: 46ch;
  font-size: .95rem;
  line-height: 1.82;
  color: rgba(10, 20, 36, .82);
}

.page-contact .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.2rem;
}

.page-contact .step {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding-top: .85rem;
  border-top: 3px solid var(--ink);
  font-size: .9rem;
  line-height: 1.76;
  color: rgba(10, 20, 36, .78);
}

.page-contact .step__num {
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--clay);
}

.page-contact .step strong {
  font-family: var(--font-display);
  font-size: 1.02rem;
  letter-spacing: .01em;
  color: var(--ink);
}

.page-contact .correct__note {
  margin: 1.8rem 0 0;
  padding: .95rem 1.1rem;
  border-left: 3px solid var(--orange);
  background: rgba(255, 107, 44, .1);
  font-size: .88rem;
  line-height: 1.78;
  color: rgba(10, 20, 36, .84);
}

.page-contact .correct__fig {
  margin: 0;
  align-self: start;
}

.page-contact .correct__fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 合作洽谈 ---------- */
.page-contact .partner {
  padding-block: var(--ch-pad);
  background: var(--ink);
  border-bottom: var(--ch-line);
}

.page-contact .partner__grid {
  display: grid;
  gap: 1.4rem;
  margin-top: 2rem;
}

.page-contact .partner__item {
  position: relative;
  padding: 1.4rem 1.3rem 1.5rem;
  background: var(--slate);
  border: var(--ch-line);
  border-left: 3px solid var(--cyan);
}

.page-contact .partner__item h3 {
  margin: .9rem 0 .6rem;
  font-family: var(--font-display);
  font-size: clamp(1.12rem, 3.4vw, 1.4rem);
  line-height: 1.24;
  letter-spacing: -.005em;
  color: var(--white);
}

.page-contact .partner__item p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.82;
  color: rgba(251, 252, 254, .76);
}

.page-contact .partner__meta {
  margin-top: .9rem !important;
  padding-top: .85rem;
  border-top: var(--ch-line);
  font-family: var(--font-mono);
  font-size: .74rem !important;
  letter-spacing: .02em;
  color: var(--mute) !important;
}

/* ---------- 准备清单 ---------- */
.page-contact .prepare {
  padding-block: var(--ch-pad);
  background: var(--slate);
  border-bottom: var(--ch-line);
}

.page-contact .checklist {
  list-style: none;
  margin: 1.9rem 0 0;
  padding: 0;
  display: grid;
  gap: .9rem;
}

.page-contact .check {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  padding-bottom: .9rem;
  border-bottom: 1px solid var(--stone);
  font-size: .92rem;
  line-height: 1.72;
  color: rgba(251, 252, 254, .82);
}

.page-contact .check__box {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: .28rem;
  border: 1px solid var(--cyan);
  border-radius: 2px;
}

.page-contact .check__box::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(42deg);
}

.page-contact .prepare__note {
  margin: 1.6rem 0 0;
  font-size: .88rem;
  line-height: 1.8;
  color: var(--mute);
}

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

/* ---------- 咨询分类 ---------- */
.page-contact .topics {
  padding-block: var(--ch-pad);
  background: var(--ink);
  border-bottom: var(--ch-line);
}

.page-contact .topic-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.page-contact .topic {
  display: block;
  padding: 1.3rem 1.2rem 1.35rem;
  background: var(--slate);
  border: 1px solid var(--stone);
  border-radius: var(--radius);
  text-decoration: none;
  transition: border-color var(--mid) var(--ease), transform var(--mid) var(--ease), background-color var(--mid) var(--ease);
}

.page-contact .topic__num {
  display: inline-block;
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--mute);
}

.page-contact .topic h3 {
  margin: .55rem 0 .5rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: .01em;
  color: var(--white);
}

.page-contact .topic p {
  margin: 0 0 1rem;
  font-size: .88rem;
  line-height: 1.76;
  color: rgba(251, 252, 254, .74);
}

.page-contact .topic__go {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-contact .topic:hover,
.page-contact .topic:focus-visible {
  border-color: var(--cyan);
  background: #16263D;
  transform: translateY(-3px);
  outline: none;
}

.page-contact .topic:hover .topic__num,
.page-contact .topic:focus-visible .topic__num {
  color: var(--cyan);
}

/* ---------- 收尾 ---------- */
.page-contact .closing {
  padding-block: var(--ch-pad);
  background: var(--slate);
}

.page-contact .closing__inner {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  align-items: flex-start;
}

.page-contact .closing__text {
  margin: 0;
  max-width: 38ch;
  font-family: var(--font-display);
  font-size: clamp(1.16rem, 3.6vw, 1.5rem);
  line-height: 1.34;
  color: var(--white);
}

.page-contact .closing__btns {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 640px) {
  .page-contact .checklist {
    grid-template-columns: repeat(2, 1fr);
    gap: .9rem 2.2rem;
  }

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

  .page-contact .closing__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
  }
}

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

  .page-contact .correct__grid {
    grid-template-columns: 1.12fr .88fr;
    gap: 3rem;
    align-items: start;
  }

  .page-contact .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .page-contact .partner__grid {
    grid-template-columns: repeat(12, 1fr);
    gap: 1.25rem;
  }

  .page-contact .partner__item:nth-child(1) {
    grid-column: span 12;
  }

  .page-contact .partner__item:nth-child(2) {
    grid-column: span 7;
  }

  .page-contact .partner__item:nth-child(3) {
    grid-column: span 5;
  }
}

@media (min-width: 1100px) {
  .page-contact .topic-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .topic-grid .topic:nth-child(4),
  .page-contact .topic-grid .topic:nth-child(5) {
    grid-column: span 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .topic {
    transition: none;
  }

  .page-contact .topic:hover,
  .page-contact .topic:focus-visible {
    transform: none;
  }
}