.page-contact {
  --pc-panel: rgba(11, 42, 34, .62);
  --pc-card: rgba(6, 28, 22, .55);
  --pc-hair: rgba(167, 193, 182, .18);
  --pc-hair-strong: rgba(167, 193, 182, .42);
  color: var(--paper);
  line-height: 1.8;
  font-family: var(--font-body);
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -.015em;
  line-height: 1.08;
  margin: 0;
}

.page-contact .breadcrumbs {
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-contact .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px dashed var(--pc-hair-strong);
}

.page-contact .breadcrumbs a:hover,
.page-contact .breadcrumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .section-head {
  margin-bottom: 26px;
}

.page-contact .section-title {
  font-size: clamp(23px, 4.6vw, 36px);
  max-width: 20em;
}

.page-contact .kicker {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 12px;
}

.page-contact .prose {
  color: var(--paper-70);
  font-size: 15.5px;
  line-height: 1.85;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: 26px 0 52px;
  background:
    radial-gradient(120% 100% at 94% 0%, rgba(25, 227, 194, .16), transparent 62%),
    radial-gradient(96% 80% at 0% 100%, rgba(255, 106, 43, .13), transparent 66%);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(167, 193, 182, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(167, 193, 182, .07) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 86%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 86%);
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 36px;
  align-items: center;
}

.page-contact .contact-hero h1 {
  font-size: clamp(34px, 8vw, 64px);
  margin: 16px 0 18px;
}

.page-contact .contact-hero__lede {
  margin: 0;
  max-width: 36em;
  color: var(--paper-70);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-contact .contact-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-hero__chips li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--pc-hair);
  border-radius: 999px;
  background: rgba(11, 42, 34, .55);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
}

.page-contact .chip-k {
  color: var(--mist);
}

.page-contact .chip-v {
  color: var(--paper);
}

.page-contact .contact-hero__frame {
  position: relative;
  border-radius: var(--radius-a);
  overflow: hidden;
  border: 1px solid var(--pc-hair);
}

.page-contact .contact-hero__frame img {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .contact-hero__trace {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.page-contact .trace-pulse {
  animation: pc-trace 3.2s ease-out infinite;
  transform-origin: center;
}

@keyframes pc-trace {
  0% { transform: scale(1); opacity: .9; }
  70% { transform: scale(2.6); opacity: 0; }
  100% { transform: scale(2.6); opacity: 0; }
}

/* ---------- 通道索引 ---------- */
.page-contact .channels {
  padding: clamp(46px, 7vw, 86px) 0;
  border-top: 1px solid var(--line);
}

.page-contact .channels__grid {
  display: grid;
  gap: 14px;
}

.page-contact .channel {
  position: relative;
  padding: 24px 20px 26px 24px;
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius-b);
  background: linear-gradient(160deg, rgba(11, 42, 34, .88), rgba(6, 28, 22, .52));
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 3px;
  border-radius: 3px;
  background: var(--cyan);
}

.page-contact .channel--addr::before {
  background: var(--gold);
}

.page-contact .channel:hover {
  border-color: var(--pc-hair-strong);
  transform: translateY(-2px);
}

.page-contact .channel__signal {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .channel__signal .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 0 rgba(25, 227, 194, .5);
  animation: pc-beacon 2.8s ease-out infinite;
}

.page-contact .channel--addr .channel__signal .dot {
  background: var(--gold);
  animation: none;
}

@keyframes pc-beacon {
  0% { box-shadow: 0 0 0 0 rgba(25, 227, 194, .45); }
  70% { box-shadow: 0 0 0 10px rgba(25, 227, 194, 0); }
  100% { box-shadow: 0 0 0 0 rgba(25, 227, 194, 0); }
}

.page-contact .channel__name {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .1em;
  color: var(--mist);
  margin: 0 0 8px;
}

.page-contact .channel__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(15px, 3.6vw, 19px);
  line-height: 1.5;
  letter-spacing: -.01em;
  color: var(--paper);
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 1px dashed var(--pc-hair-strong);
  padding-bottom: 4px;
}

.page-contact a.channel__value:hover,
.page-contact a.channel__value:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .channel__value--addr {
  border-bottom: none;
  padding-bottom: 0;
  font-size: clamp(14px, 3.2vw, 16px);
}

.page-contact .channel__desc {
  margin: 14px 0 0;
  color: var(--paper-70);
  font-size: 14px;
  line-height: 1.8;
}

/* ---------- 企业专区 ---------- */
.page-contact .enterprise {
  padding: clamp(46px, 7vw, 86px) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(11, 42, 34, .6), rgba(18, 59, 74, .38));
}

.page-contact .enterprise__inner {
  display: grid;
  gap: 30px;
}

.page-contact .enterprise__copy .prose {
  margin: 16px 0 18px;
}

.page-contact .enterprise__list {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .enterprise__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  color: var(--paper-70);
}

.page-contact .enterprise__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 9px;
  height: 2px;
  background: var(--orange);
}

.page-contact .enterprise__panel {
  padding: 24px 22px;
  border: 1px solid rgba(255, 106, 43, .32);
  border-radius: var(--radius-a);
  background: rgba(18, 59, 74, .5);
}

.page-contact .enterprise__panel-title {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--gold);
}

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

.page-contact .enterprise__steps li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 14px;
  color: var(--paper-70);
  line-height: 1.7;
}

.page-contact .enterprise__steps span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
  flex: none;
}

.page-contact .enterprise__panel-foot {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--pc-hair);
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 时间节奏 ---------- */
.page-contact .rhythm {
  padding: clamp(46px, 7vw, 86px) 0;
}

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

.page-contact .rhythm__item {
  padding: 20px 0 22px;
  border-top: 2px solid var(--pc-hair);
}

.page-contact .rhythm__item:first-child {
  border-top-color: var(--cyan);
}

.page-contact .rhythm__time {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: clamp(18px, 4vw, 24px);
  color: var(--cyan);
  letter-spacing: .02em;
}

.page-contact .rhythm__name {
  font-size: 16px;
  margin: 0 0 8px;
}

.page-contact .rhythm__desc {
  margin: 0;
  color: var(--paper-70);
  font-size: 14.5px;
  line-height: 1.8;
}

/* ---------- 联系地址 ---------- */
.page-contact .address {
  padding: clamp(46px, 7vw, 86px) 0;
  border-top: 1px solid var(--line);
  background: radial-gradient(90% 120% at 100% 0%, rgba(232, 197, 106, .1), transparent 62%);
}

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

.page-contact .address__text {
  margin: 18px 0 14px;
  font-family: var(--font-mono);
  font-size: clamp(16px, 3.6vw, 21px);
  line-height: 1.7;
  color: var(--paper);
  padding-left: 16px;
  border-left: 3px solid var(--gold);
}

.page-contact .address__map {
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius-b);
  overflow: hidden;
  background: rgba(6, 28, 22, .5);
}

.page-contact .address__map svg {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 准备清单 ---------- */
.page-contact .prep {
  padding: clamp(46px, 7vw, 86px) 0;
  border-top: 1px solid var(--line);
}

.page-contact .prep__layout {
  display: grid;
  gap: 26px;
  align-items: start;
}

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

.page-contact .prep__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .prep__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-contact .prep__tab {
  display: inline-block;
  padding: 9px 16px;
  border: 1px solid var(--pc-hair-strong);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
  cursor: pointer;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}

.page-contact .prep__tab:hover {
  color: var(--paper);
  border-color: var(--cyan);
}

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

.page-contact #prep-1:checked ~ .prep__tabs .prep__tab--1,
.page-contact #prep-2:checked ~ .prep__tabs .prep__tab--2,
.page-contact #prep-3:checked ~ .prep__tabs .prep__tab--3 {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-contact #prep-1:checked ~ .prep__panels .prep__panel--1,
.page-contact #prep-2:checked ~ .prep__panels .prep__panel--2,
.page-contact #prep-3:checked ~ .prep__panels .prep__panel--3 {
  display: block;
}

.page-contact .prep__panels {
  padding: 22px 20px;
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius-b);
  background: var(--pc-panel);
}

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

.page-contact .prep__list li {
  position: relative;
  padding-left: 24px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper-70);
}

.page-contact .prep__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 10px;
  height: 10px;
  border: 1px solid var(--cyan);
  border-radius: 2px;
}

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

.page-contact .prep__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-a);
  border: 1px solid var(--pc-hair);
}

.page-contact .prep__figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 常见问题 ---------- */
.page-contact .faq {
  padding: clamp(46px, 7vw, 86px) 0 clamp(56px, 8vw, 96px);
  border-top: 1px solid var(--line);
}

.page-contact .faq__list {
  display: grid;
  gap: 10px;
}

.page-contact .faq__item {
  border: 1px solid var(--pc-hair);
  border-radius: 14px;
  background: rgba(11, 42, 34, .58);
  overflow: hidden;
  transition: border-color .25s var(--ease);
}

.page-contact .faq__item[open] {
  border-color: rgba(25, 227, 194, .42);
}

.page-contact .faq__item summary {
  position: relative;
  padding: 15px 46px 15px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .faq__item summary::-webkit-details-marker {
  display: none;
}

.page-contact .faq__item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyan);
}

.page-contact .faq__item[open] summary::after {
  content: "−";
}

.page-contact .faq__body {
  padding: 0 18px 18px;
}

.page-contact .faq__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--paper-70);
}

.page-contact .faq__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(25, 227, 194, .4);
}

.page-contact .faq__body a:hover,
.page-contact .faq__body a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-contact .faq__closing {
  margin: 24px 0 0;
  padding: 18px 20px;
  border-left: 3px solid var(--orange);
  background: rgba(255, 106, 43, .08);
  border-radius: 0 var(--radius-b) var(--radius-b) 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--paper-70);
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-contact .channels__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .page-contact .rhythm__list {
    grid-template-columns: repeat(2, 1fr);
    column-gap: 32px;
  }

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

@media (min-width: 920px) {
  .page-contact .contact-hero {
    padding: 34px 0 70px;
  }

  .page-contact .contact-hero__inner {
    grid-template-columns: 1.12fr .88fr;
    gap: 54px;
  }

  .page-contact .contact-hero__lede {
    font-size: 16.5px;
  }

  .page-contact .enterprise__inner {
    grid-template-columns: 1.28fr .72fr;
    gap: 46px;
    align-items: start;
  }

  .page-contact .rhythm__list {
    grid-template-columns: repeat(4, 1fr);
    column-gap: 26px;
  }

  .page-contact .address__inner {
    grid-template-columns: .92fr 1.08fr;
    gap: 44px;
  }

  .page-contact .prep__layout {
    grid-template-columns: 1.15fr .85fr;
    gap: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .trace-pulse,
  .page-contact .channel__signal .dot {
    animation: none;
  }

  .page-contact .channel {
    transition: none;
  }

  .page-contact .channel:hover {
    transform: none;
  }
}