.page-contact {
  --contact-radius-a: 28px 28px 8px 28px;
  --contact-radius-b: 8px 28px 28px 28px;
  --contact-radius-c: 28px 8px 28px 8px;
  --contact-radius-d: 8px 8px 28px 8px;
  --contact-hair: rgba(61, 42, 107, .72);
  --contact-lime-veil: rgba(184, 255, 63, .38);
  --contact-amber-veil: rgba(255, 155, 69, .24);
  position: relative;
  z-index: 1;
  counter-reset: contact-step;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-intro {
  position: relative;
  padding-top: clamp(84px, 11vw, 132px);
  padding-bottom: clamp(40px, 5vw, 64px);
}

.page-contact .contact-intro__inner {
  max-width: var(--shell-max);
}

.page-contact .contact-intro__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.8vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.14;
  color: var(--text);
  max-width: 20ch;
}

.page-contact .contact-intro__lede {
  margin: 22px 0 0;
  max-width: 44ch;
  font-size: 1.0625rem;
  line-height: 1.9;
  color: var(--text-dim);
}

/* ---------- 横向主题带：四类方向标签 ---------- */

.page-contact .contact-lane-band {
  margin-top: clamp(38px, 5.5vw, 68px);
  background:
    radial-gradient(120% 160% at 8% 0%, rgba(184, 255, 63, .22) 0%, transparent 58%),
    radial-gradient(120% 180% at 96% 100%, rgba(255, 155, 69, .18) 0%, transparent 60%),
    linear-gradient(180deg, var(--paper) 0%, #E8E1FB 100%);
  border-top: 1px solid var(--paper-line);
  border-bottom: 1px solid var(--paper-line);
  color: var(--text-on-paper);
}

.page-contact .contact-lane-band__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding: clamp(26px, 4vw, 46px) 0;
}

.page-contact .contact-lane {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 22px 22px;
  border: 1px solid rgba(27, 16, 48, .62);
  background: rgba(255, 255, 255, .52);
  color: var(--text-on-paper);
  text-decoration: none;
  box-shadow: 3px 3px 0 rgba(27, 16, 48, .14);
  transition: transform .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease);
}

.page-contact .contact-lane:hover,
.page-contact .contact-lane:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 rgba(27, 16, 48, .2);
  background: rgba(255, 255, 255, .82);
}

.page-contact .contact-lane--a { border-radius: var(--contact-radius-a); }
.page-contact .contact-lane--b { border-radius: var(--contact-radius-b); background: var(--contact-lime-veil); }
.page-contact .contact-lane--c { border-radius: var(--contact-radius-c); }
.page-contact .contact-lane--d { border-radius: var(--contact-radius-d); background: var(--contact-amber-veil); }

.page-contact .contact-lane__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--text-dim-on-paper);
}

.page-contact .contact-lane__name {
  display: block;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.page-contact .contact-lane__desc {
  display: block;
  margin-top: 6px;
  font-size: .875rem;
  line-height: 1.6;
  color: var(--text-dim-on-paper);
}

/* ---------- 通用小节头 ---------- */

.page-contact .contact-sec-head {
  max-width: 62ch;
  margin-bottom: clamp(32px, 4.5vw, 54px);
}

.page-contact .contact-sec-head__lede {
  margin-top: 14px;
  color: var(--text-dim);
}

/* ---------- 四类合作方向 ---------- */

.page-contact .contact-map-sec {
  padding: clamp(60px, 8vw, 108px) 0;
}

.page-contact .contact-map {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-contact .contact-map__item {
  position: relative;
  padding: 26px 26px 28px;
  border: 1px solid var(--line);
  background: linear-gradient(158deg, var(--panel) 0%, rgba(20, 10, 43, .92) 100%);
  box-shadow: var(--shadow-deep);
}

.page-contact .contact-map__item--device { border-radius: var(--contact-radius-a); }
.page-contact .contact-map__item--network { border-radius: var(--contact-radius-b); }
.page-contact .contact-map__item--content { border-radius: var(--contact-radius-c); }
.page-contact .contact-map__item--enterprise {
  border-radius: var(--contact-radius-d);
  background:
    radial-gradient(140% 120% at 100% 0%, rgba(184, 255, 63, .1) 0%, transparent 62%),
    linear-gradient(158deg, var(--panel) 0%, rgba(20, 10, 43, .94) 100%);
}

.page-contact .contact-map__tag {
  display: inline-block;
  margin: 0 0 14px;
  padding: 5px 10px 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--lime);
  border: 1px solid rgba(184, 255, 63, .48);
  border-radius: 3px;
}

.page-contact .contact-map__tag--amber {
  color: var(--amber);
  border-color: rgba(255, 155, 69, .5);
}

.page-contact .contact-map__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  font-weight: 700;
  line-height: 1.32;
  color: var(--text);
}

.page-contact .contact-map__body {
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-contact .contact-map__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .contact-map__list li {
  position: relative;
  padding-left: 20px;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--text);
}

.page-contact .contact-map__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .62em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--lime);
  border-radius: 2px;
}

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

.page-contact .contact-map__figure .xg-figure__media {
  border: 1px solid var(--line);
  border-radius: 20px 6px 20px 6px;
  overflow: hidden;
  background: var(--ink-900);
}

.page-contact .contact-map__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-contact .contact-map__figure .xg-figure__cap {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1.6;
  color: var(--text-dim);
}

/* ---------- 对接流程 ---------- */

.page-contact .contact-flow {
  padding: clamp(56px, 7.5vw, 96px) 0;
  background: linear-gradient(180deg, rgba(20, 10, 43, .72) 0%, rgba(8, 4, 15, 0) 100%);
}

.page-contact .contact-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
}

.page-contact .contact-step {
  position: relative;
  padding: 30px 22px 26px;
  border-top: 1px solid var(--contact-hair);
}

.page-contact .contact-step::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 22px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(184, 255, 63, .13);
  animation: contact-node-breathe 1.2s ease-in-out infinite;
}

.page-contact .contact-step:nth-child(2)::before { animation-delay: .3s; }
.page-contact .contact-step:nth-child(3)::before { animation-delay: .6s; }
.page-contact .contact-step:nth-child(4)::before { animation-delay: .9s; }

.page-contact .contact-step__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--lime);
}

.page-contact .contact-step__title {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
}

.page-contact .contact-step__meta {
  margin: 0 0 14px;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-contact .contact-step__more > summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--lime);
  border-bottom: 1px dashed rgba(184, 255, 63, .45);
  padding-bottom: 3px;
}

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

.page-contact .contact-step__more > summary::after {
  content: "+";
  font-size: 14px;
  line-height: 1;
  transition: transform .18s var(--ease);
}

.page-contact .contact-step__more[open] > summary::after {
  transform: rotate(45deg);
}

.page-contact .contact-step__more > p {
  margin: 14px 0 0;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-contact .contact-flow__figure {
  margin: clamp(34px, 4.5vw, 56px) 0 0;
}

.page-contact .contact-flow__figure .xg-figure__media {
  border: 1px solid var(--line);
  border-radius: 6px 22px 6px 22px;
  overflow: hidden;
  background: var(--ink-900);
}

.page-contact .contact-flow__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .contact-flow__figure .xg-figure__cap {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1.6;
  color: var(--text-dim);
}

/* ---------- 企业服务内容 ---------- */

.page-contact .contact-service {
  padding: clamp(56px, 7.5vw, 96px) 0;
}

.page-contact .contact-service__list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--contact-hair);
}

.page-contact .contact-service__row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 20px;
  padding: 26px 4px 28px;
  border-bottom: 1px solid var(--contact-hair);
}

.page-contact .contact-service__idx {
  grid-row: 1 / span 3;
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--lime);
}

.page-contact .contact-service__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  font-weight: 700;
  color: var(--text);
}

.page-contact .contact-service__text {
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-dim);
  max-width: 60ch;
}

.page-contact .contact-service__scope {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1.6;
  color: var(--amber);
}

/* ---------- 服务时段与响应 ---------- */

.page-contact .contact-hours {
  padding: clamp(56px, 7.5vw, 96px) 0;
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(61, 42, 107, .38) 0%, transparent 58%),
    linear-gradient(180deg, rgba(20, 10, 43, .8) 0%, rgba(8, 4, 15, .2) 100%);
}

.page-contact .contact-hours__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-contact .contact-hours__clock {
  margin: 18px 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--lime);
}

.page-contact .contact-hours__note {
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-dim);
  max-width: 44ch;
}

.page-contact .contact-hours__chan {
  padding: 24px 24px 26px;
  border: 1px solid var(--line);
  border-radius: 6px 24px 6px 24px;
  background: rgba(36, 19, 68, .46);
}

.page-contact .contact-hours__chan--phone {
  border-radius: 24px 6px 24px 6px;
  background: rgba(36, 19, 68, .62);
  border-color: rgba(255, 155, 69, .38);
}

.page-contact .contact-hours__chan-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

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

.page-contact .contact-hours__list li {
  position: relative;
  padding-left: 18px;
  font-size: .9375rem;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-contact .contact-hours__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 7px;
  height: 1px;
  background: var(--lime);
}

.page-contact .contact-hours__chan--phone .contact-hours__list li::before {
  background: var(--amber);
}

/* ---------- 联系信息纸层 ---------- */

.page-contact .contact-reach {
  padding: clamp(52px, 7vw, 92px) 0 clamp(56px, 7.5vw, 100px);
  color: var(--text-on-paper);
}

.page-contact .contact-reach__inner {
  display: grid;
  gap: 32px;
}

.page-contact .contact-kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--text-dim-on-paper);
}

.page-contact .contact-reach__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 700;
  line-height: 1.28;
  color: var(--text-on-paper);
}

.page-contact .contact-reach__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .contact-reach__card {
  padding: 24px 24px 26px;
  background: rgba(255, 255, 255, .62);
  border: 1px solid rgba(27, 16, 48, .5);
  border-radius: 22px 6px 22px 6px;
  box-shadow: 4px 4px 0 rgba(27, 16, 48, .1);
}

.page-contact .contact-reach__card--amber {
  border-radius: 6px 22px 6px 22px;
  background: rgba(255, 236, 216, .78);
  border-color: rgba(191, 106, 30, .5);
}

.page-contact .contact-reach__label {
  margin: 0 0 12px;
  display: inline-block;
  padding: 4px 9px 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--text-on-paper);
  border: 1px solid rgba(27, 16, 48, .55);
  border-radius: 3px;
}

.page-contact .contact-reach__label--amber {
  color: #7A3D08;
  border-color: rgba(191, 106, 30, .6);
}

.page-contact .contact-reach__value {
  margin: 0 0 12px;
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-on-paper);
  word-break: break-word;
}

.page-contact .contact-reach__value--mail,
.page-contact .contact-reach__value--tel {
  font-family: var(--font-mono);
  font-size: clamp(.95rem, 1.9vw, 1.15rem);
  letter-spacing: .01em;
}

.page-contact .contact-reach__value--tel {
  font-variant-numeric: tabular-nums;
}

.page-contact .contact-reach__desc {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--text-dim-on-paper);
}

/* ---------- 准备清单 ---------- */

.page-contact .contact-prepare {
  padding: clamp(28px, 4vw, 42px) clamp(22px, 3.5vw, 40px) clamp(30px, 4vw, 44px);
  border: 1px solid rgba(27, 16, 48, .42);
  border-radius: 6px 28px 6px 28px;
  background: rgba(255, 255, 255, .44);
}

.page-contact .contact-prepare__title {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.2vw, 1.4rem);
  font-weight: 700;
  color: var(--text-on-paper);
}

.page-contact .contact-prepare__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .contact-prepare__list li {
  position: relative;
  padding-left: 36px;
}

.page-contact .contact-prepare__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .28em;
  width: 17px;
  height: 17px;
  border: 1.5px solid rgba(27, 16, 48, .7);
  border-radius: 4px;
  background: rgba(255, 255, 255, .7);
}

.page-contact .contact-prepare__name {
  display: block;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-on-paper);
}

.page-contact .contact-prepare__hint {
  display: block;
  margin-top: 3px;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--text-dim-on-paper);
}

/* ---------- 收尾指引 ---------- */

.page-contact .contact-next {
  padding: clamp(64px, 9vw, 132px) 0 clamp(80px, 10vw, 152px);
}

.page-contact .contact-next__inner {
  max-width: 780px;
}

.page-contact .contact-next__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 700;
  line-height: 1.28;
  color: var(--text);
}

.page-contact .contact-next__lede {
  margin: 0 0 30px;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-dim);
  max-width: 46ch;
}

.page-contact .contact-next__links {
  display: grid;
  gap: 12px;
}

.page-contact .contact-next__link {
  display: block;
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: 4px 20px 4px 20px;
  background: rgba(36, 19, 68, .34);
  color: var(--text);
  text-decoration: none;
  font-size: .9688rem;
  line-height: 1.6;
  transition: transform .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);
}

.page-contact .contact-next__link:hover,
.page-contact .contact-next__link:focus-visible {
  transform: translateX(4px);
  border-color: var(--lime);
  background: rgba(36, 19, 68, .6);
}

/* ---------- 动画 ---------- */

@keyframes contact-node-breathe {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 4px rgba(184, 255, 63, .13); }
  50% { opacity: .62; box-shadow: 0 0 0 8px rgba(184, 255, 63, .06); }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-step::before { animation: none; }
  .page-contact .contact-lane,
  .page-contact .contact-next__link,
  .page-contact .contact-step__more > summary::after { transition: none; }
  .page-contact .contact-lane:hover,
  .page-contact .contact-lane:focus-visible { transform: none; }
  .page-contact .contact-next__link:hover,
  .page-contact .contact-next__link:focus-visible { transform: none; }
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-contact .contact-lane-band__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    align-items: end;
  }
  .page-contact .contact-lane--a { min-height: 152px; }
  .page-contact .contact-lane--b { min-height: 190px; }
  .page-contact .contact-lane--c { min-height: 134px; }
  .page-contact .contact-lane--d { min-height: 170px; }

  .page-contact .contact-reach__cards {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-contact .contact-reach__cards > :nth-child(3) {
    grid-column: 1 / -1;
  }
  .page-contact .contact-next__links {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-steps {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-contact .contact-step {
    padding: 34px 24px 30px;
    border-right: 1px solid rgba(61, 42, 107, .34);
  }
  .page-contact .contact-step:last-child {
    border-right: none;
  }
  .page-contact .contact-hours__grid {
    grid-template-columns: 1.05fr 1fr 1fr;
    gap: 26px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-map {
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
  }
  .page-contact .contact-map__item--device { grid-column: 1 / 8; }
  .page-contact .contact-map__item--network { grid-column: 8 / 13; }
  .page-contact .contact-map__item--content { grid-column: 1 / 7; }
  .page-contact .contact-map__figure { grid-column: 7 / 13; align-self: start; }
  .page-contact .contact-map__item--enterprise { grid-column: 2 / 12; }

  .page-contact .contact-reach__inner {
    grid-template-columns: repeat(12, 1fr);
    gap: 26px 24px;
  }
  .page-contact .contact-reach__head { grid-column: 1 / 13; }
  .page-contact .contact-reach__cards { grid-column: 1 / 13; grid-template-columns: repeat(3, 1fr); }
  .page-contact .contact-reach__cards > :nth-child(3) { grid-column: auto; }
  .page-contact .contact-prepare { grid-column: 2 / 12; }
}

@media (min-width: 1280px) {
  .page-contact .contact-intro__title {
    max-width: 17ch;
  }
  .page-contact .contact-service__row {
    grid-template-columns: 72px 1fr 220px;
    align-items: baseline;
    gap: 6px 28px;
    padding: 30px 4px 32px;
  }
  .page-contact .contact-service__idx {
    grid-row: 1 / span 2;
  }
  .page-contact .contact-service__title { grid-column: 2; }
  .page-contact .contact-service__text { grid-column: 2; }
  .page-contact .contact-service__scope {
    grid-column: 3;
    grid-row: 1 / span 2;
    text-align: right;
  }
}