.page-contact {
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-contact a:focus-visible {
  outline: 2px solid var(--c-lime);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(30px, 5vw, 62px) 0 clamp(30px, 4.4vw, 54px);
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -18%;
  width: min(780px, 82vw);
  height: 200%;
  background:
    linear-gradient(165deg, transparent 43%, rgba(63, 216, 255, .14) 48%, transparent 53%),
    linear-gradient(165deg, transparent 60%, rgba(184, 255, 60, .10) 65%, transparent 70%),
    linear-gradient(165deg, transparent 76%, rgba(255, 106, 43, .10) 81%, transparent 86%);
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2rem, 6vw, 3.8rem);
  line-height: 1.08;
  letter-spacing: -.03em;
  color: var(--c-white);
  max-width: 18ch;
}

.page-contact .contact-hero__lead {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: clamp(.98rem, 1.6vw, 1.0625rem);
  line-height: 1.78;
  color: var(--c-mist);
}

.page-contact .hero-strip {
  list-style: none;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  overflow: hidden;
}

.page-contact .hero-strip__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  background: rgba(10, 18, 41, .86);
}

.page-contact .hero-strip__k {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: .02em;
  color: var(--c-lime);
}

.page-contact .hero-strip__v {
  font-size: .875rem;
  color: var(--c-mist);
}

/* ---------- 锚点跳转 ---------- */
.page-contact .contact-jump {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(5, 11, 26, .94);
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-jump__inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-top: 11px;
  padding-bottom: 11px;
  scrollbar-width: none;
}

.page-contact .contact-jump__inner::-webkit-scrollbar {
  display: none;
}

.page-contact .jump-link {
  flex: 0 0 auto;
  padding: 7px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: .875rem;
  font-weight: 600;
  color: var(--c-white);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease);
}

.page-contact .jump-link:hover {
  border-color: var(--c-lime);
  color: var(--c-lime);
}

/* ---------- 通道清单 ---------- */
.page-contact .channels {
  display: grid;
  gap: 18px;
  padding-top: clamp(32px, 5vw, 58px);
  padding-bottom: clamp(32px, 5vw, 58px);
}

.page-contact .channel {
  position: relative;
  display: grid;
  gap: 18px;
  padding: 26px 20px 26px 24px;
  background: rgba(247, 250, 255, .028);
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  overflow: hidden;
  scroll-margin-top: 84px;
  transition: background .24s var(--ease), border-color .24s var(--ease);
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  top: 0;
  right: auto;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--ch, var(--c-mist));
  opacity: .5;
  transition: opacity .24s var(--ease), width .24s var(--ease);
}

.page-contact .channel:hover::before,
.page-contact .channel:focus-within::before {
  opacity: 1;
  width: 6px;
}

.page-contact .channel:hover {
  background: rgba(247, 250, 255, .055);
  border-color: var(--line);
}

.page-contact .channel--service { --ch: var(--c-cyan); }
.page-contact .channel--feedback { --ch: var(--c-lime); }
.page-contact .channel--partner { --ch: var(--c-orange); }

.page-contact .channel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .channel__idx {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: .8125rem;
  letter-spacing: .16em;
  color: var(--ch, var(--c-mist));
}

.page-contact .channel__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.3rem, 2.8vw, 1.7rem);
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--c-white);
}

.page-contact .channel__tag {
  margin-left: auto;
  padding: 3px 10px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  font-size: .75rem;
  letter-spacing: .04em;
  color: var(--c-mist);
  white-space: nowrap;
}

.page-contact .channel__grid {
  display: grid;
  gap: 24px;
}

.page-contact .channel__main,
.page-contact .channel__aside {
  min-width: 0;
}

.page-contact .channel__lead {
  margin: 0;
  max-width: 62ch;
  font-size: .97rem;
  line-height: 1.8;
  color: rgba(247, 250, 255, .82);
}

.page-contact .channel__lead a,
.page-contact .channel__note a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 216, 255, .4);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .channel__lead a:hover,
.page-contact .channel__note a:hover {
  color: var(--c-lime);
  border-bottom-color: var(--c-lime);
}

.page-contact .channel__note {
  margin: 16px 0 0;
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--c-mist);
}

.page-contact .channel__banner {
  margin: 0;
  border-radius: var(--r);
  overflow: hidden;
}

/* 联系方式 */
.page-contact .reach {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.page-contact .reach__item {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px 16px;
  background: rgba(5, 11, 26, .55);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--ch, var(--c-mist));
  border-radius: var(--r);
}

.page-contact .reach__item--key {
  background: rgba(63, 216, 255, .07);
  border-color: rgba(63, 216, 255, .26);
  border-left-color: var(--ch, var(--c-cyan));
}

.page-contact .reach__label {
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--c-mist);
}

.page-contact .reach__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1rem, 2.7vw, 1.4rem);
  letter-spacing: .01em;
  line-height: 1.35;
  color: var(--c-white);
  overflow-wrap: anywhere;
}

/* 侧栏清单 */
.page-contact .aside__title {
  margin: 0 0 12px;
  font-size: .875rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--c-white);
}

.page-contact .aside__title::before {
  content: "";
  display: inline-block;
  width: 14px;
  height: 2px;
  margin-right: 8px;
  vertical-align: .28em;
  background: var(--ch, var(--c-mist));
}

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .checklist li {
  position: relative;
  padding-left: 22px;
  font-size: .875rem;
  line-height: 1.72;
  color: var(--c-mist);
}

.page-contact .checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: 9px;
  height: 9px;
  border: 1px solid var(--ch, var(--c-mist));
  border-radius: 1px;
  opacity: .85;
}

/* 反馈流程 */
.page-contact .flow {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-contact .flow__step {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 0;
  border-top: 1px solid var(--line-soft);
  font-size: .875rem;
  line-height: 1.65;
  color: var(--c-mist);
}

.page-contact .flow__step:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .flow__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .14em;
  color: var(--ch, var(--c-mist));
}

/* 标签与时间线 */
.page-contact .tagrow {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .timeline {
  display: grid;
  gap: 1px;
  margin-top: 20px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  overflow: hidden;
}

.page-contact .timeline__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 18px;
  padding: 13px 16px;
  background: rgba(5, 11, 26, .55);
}

.page-contact .timeline__k {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: .9375rem;
  letter-spacing: .02em;
  color: var(--ch, var(--c-orange));
  min-width: 9em;
}

.page-contact .timeline__v {
  font-size: .875rem;
  color: var(--c-mist);
}

/* ---------- 到访地址 ---------- */
.page-contact .visit {
  position: relative;
  padding: clamp(40px, 6vw, 76px) 0;
  background: var(--c-paper);
  color: var(--c-space);
  scroll-margin-top: 84px;
  overflow: hidden;
}

.page-contact .visit::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-lime), var(--c-orange));
}

.page-contact .visit__grid {
  display: grid;
  gap: 30px;
  align-items: center;
}

.page-contact .visit__text {
  min-width: 0;
}

.page-contact .visit__title {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  letter-spacing: -.02em;
  line-height: 1.15;
  color: var(--c-space);
}

.page-contact .visit__desc {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: .97rem;
  line-height: 1.82;
  color: rgba(10, 18, 41, .74);
}

.page-contact .visit__addr {
  display: inline-block;
  margin: 24px 0 0;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1rem, 2.4vw, 1.2rem);
  letter-spacing: .02em;
  color: var(--c-space);
  background: var(--c-paper-2);
  border: 1px solid rgba(10, 18, 41, .16);
  border-radius: var(--r);
}

.page-contact .visit__hint {
  margin: 14px 0 0;
  font-size: .8125rem;
  line-height: 1.7;
  color: rgba(10, 18, 41, .6);
}

.page-contact .visit__map {
  margin: 0;
  border-radius: var(--r);
  overflow: hidden;
}

/* ---------- 响应节奏 ---------- */
.page-contact .timing {
  padding: clamp(40px, 6vw, 78px) 0 0;
  scroll-margin-top: 84px;
}

.page-contact .timing__grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-contact .timing__card {
  position: relative;
  padding: 22px 18px 24px;
  background: rgba(247, 250, 255, .028);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--tc, var(--c-mist));
  border-radius: var(--r);
  transition: transform .24s var(--ease), border-color .24s var(--ease), background .24s var(--ease);
}

.page-contact .timing__card:hover {
  transform: translateY(-4px);
  background: rgba(247, 250, 255, .055);
  border-color: var(--line);
}

.page-contact .timing__card--lime { --tc: var(--c-lime); }
.page-contact .timing__card--cyan { --tc: var(--c-cyan); }
.page-contact .timing__card--mist { --tc: var(--c-mist); }
.page-contact .timing__card--orange { --tc: var(--c-orange); }

.page-contact .timing__badge {
  display: inline-block;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: .02em;
  color: var(--tc, var(--c-mist));
  border-bottom: 1px solid currentColor;
}

.page-contact .timing__t {
  margin: 14px 0 8px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-white);
}

.page-contact .timing__card p {
  margin: 0;
  font-size: .875rem;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-contact .timing__foot {
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  max-width: 68ch;
  font-size: .875rem;
  line-height: 1.85;
  color: var(--c-mist);
}

.page-contact .timing__foot a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 216, 255, .35);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .timing__foot a:hover {
  color: var(--c-lime);
  border-bottom-color: var(--c-lime);
}

/* ---------- 自适应 ---------- */
@media (min-width: 640px) {
  .page-contact .hero-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .timing__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-contact .channel {
    padding: 32px 32px 32px 38px;
  }

  .page-contact .channel__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .85fr);
    gap: 36px;
  }

  .page-contact .channel__aside {
    padding-left: 24px;
    border-left: 1px solid var(--line-soft);
  }
}

@media (min-width: 860px) {
  .page-contact .visit__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 52px;
  }
}

@media (min-width: 1040px) {
  .page-contact .timing__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .page-contact .channel__tag {
    margin-left: 0;
  }

  .page-contact .timeline__k {
    min-width: 0;
  }
}