.page-contact {
  --ct-ice-line: rgba(99, 230, 214, 0.28);
  --ct-paper-line: rgba(4, 7, 13, 0.14);
  --ct-shadow: 0 26px 60px rgba(4, 7, 13, 0.55);
  position: relative;
  overflow-x: hidden;
  background: var(--night);
  color: var(--mist);
  font-family: var(--font-body);
}

.page-contact .mono {
  font-family: var(--font-mono);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(104px, 15vw, 168px) 0 clamp(36px, 5vw, 56px);
  background: radial-gradient(120% 90% at 82% 0%, #142743 0%, var(--night) 58%);
}

.page-contact .contact-hero__backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.page-contact .contact-hero__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
  filter: saturate(0.7);
}

.page-contact .contact-hero__backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 16, 31, 0.35) 0%, rgba(8, 16, 31, 0.86) 62%, var(--night) 100%);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: linear-gradient(to right, rgba(99, 230, 214, 0.07) 1px, transparent 1px);
  background-size: clamp(58px, 8vw, 108px) 100%;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 72%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 72%);
}

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

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
  margin-top: clamp(26px, 4vw, 44px);
}

.page-contact .contact-hero__kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ice);
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  max-width: 13em;
  font-family: var(--font-display);
  font-size: clamp(36px, 8vw, 70px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-contact .contact-hero__lede {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: clamp(15.5px, 2.4vw, 18px);
  line-height: 1.85;
  color: rgba(244, 247, 251, 0.82);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3.4vw, 32px);
}

.page-contact .contact-hero__meta {
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--ct-ice-line);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--steel);
}

/* ---------- 纸张叠层联系卡 ---------- */
.page-contact .contact-card-stack {
  position: relative;
}

.page-contact .contact-card-stack::before {
  content: "";
  position: absolute;
  inset: 0;
  transform: translate(10px, 14px) rotate(1.1deg);
  background: var(--deep);
  border: 1px solid var(--line);
}

.page-contact .contact-card-stack::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translate(-7px, 7px) rotate(-0.7deg);
  background: var(--cloud);
  border: 1px solid var(--line);
}

.page-contact .contact-card {
  position: relative;
  z-index: 2;
  padding: clamp(22px, 4vw, 32px);
  background: var(--mist);
  color: var(--ink);
  border: 1px solid var(--ct-paper-line);
  box-shadow: var(--ct-shadow);
}

.page-contact .contact-card__tag {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--line);
}

.page-contact .contact-card__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 25px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--night);
}

.page-contact .contact-rows {
  margin: 18px 0 0;
}

.page-contact .contact-row {
  padding: 14px 0;
  border-top: 1px solid var(--ct-paper-line);
}

.page-contact .contact-row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--line);
}

.page-contact .contact-row dd {
  margin: 7px 0 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--night);
  word-break: break-word;
}

.page-contact .contact-row__mail {
  display: inline-block;
  font-size: clamp(14px, 3.3vw, 17px);
  font-weight: 500;
  letter-spacing: -0.01em;
  word-break: break-all;
}

.page-contact .contact-row__tel {
  font-size: clamp(18px, 3.6vw, 21px);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-contact .contact-chip {
  display: inline-block;
  margin-top: 9px;
  padding: 3px 8px;
  border: 1px solid rgba(27, 44, 71, 0.35);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cloud);
}

.page-contact .contact-card__foot {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--ct-paper-line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--line);
}

/* ---------- 概览条 ---------- */
.page-contact .contact-strip {
  background: var(--deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-strip .data-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.page-contact .contact-strip .data-strip__item {
  padding: 18px clamp(14px, 3vw, 26px);
  background: var(--deep);
}

.page-contact .contact-strip .data-strip__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--steel);
}

.page-contact .contact-strip .data-strip__value {
  margin: 7px 0 0;
  font-size: clamp(14.5px, 2.6vw, 18px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ice-soft);
}

/* ---------- 章节带 ---------- */
.page-contact .contact-band {
  position: relative;
  padding: clamp(50px, 8vw, 96px) 0;
}

.page-contact .contact-band--light {
  background: var(--mist);
  color: var(--ink);
}

.page-contact .contact-band--deep {
  background: var(--deep);
  color: var(--mist);
}

.page-contact .contact-band--cloud {
  background: var(--cloud);
  color: var(--mist);
}

.page-contact .contact-band--night {
  background: var(--night);
  color: var(--mist);
}

.page-contact .band-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-contact .band-index {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ice);
}

.page-contact .band-index::after {
  content: "";
  width: 46px;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
}

.page-contact .contact-band--light .band-index {
  color: var(--cloud);
}

.page-contact .band-head .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(25px, 4.5vw, 42px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.page-contact .contact-band--light .section-title {
  color: var(--night);
}

.page-contact .band-lede {
  margin: 12px 0 0;
  max-width: 40em;
  font-size: clamp(15px, 2.3vw, 17px);
  line-height: 1.8;
}

.page-contact .contact-band--light .band-lede {
  color: var(--line);
}

.page-contact .contact-band--deep .band-lede,
.page-contact .contact-band--cloud .band-lede,
.page-contact .contact-band--night .band-lede {
  color: rgba(244, 247, 251, 0.78);
}

/* ---------- 内容网格 ---------- */
.page-contact .content-grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

/* ---------- 咨询前准备清单 ---------- */
.page-contact .prep-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--ct-paper-line);
}

.page-contact .prep-item:first-child {
  border-top: 1px solid var(--ct-paper-line);
}

.page-contact .prep-check {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  margin: 3px 0 0;
  position: relative;
  border: 1px solid var(--cloud);
  background: transparent;
  cursor: pointer;
}

.page-contact .prep-check:checked {
  background: var(--ice);
  border-color: var(--ice);
}

.page-contact .prep-check:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 1px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--night);
  border-bottom: 2px solid var(--night);
  transform: rotate(40deg);
}

.page-contact .prep-check:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: 2px;
}

.page-contact .prep-label {
  display: grid;
  gap: 5px;
  cursor: pointer;
}

.page-contact .prep-label__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--night);
}

.page-contact .prep-label__text {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--line);
}

/* ---------- 旁注 ---------- */
.page-contact .aside-note {
  padding-left: 16px;
  border-left: 1px solid var(--ct-ice-line);
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(244, 247, 251, 0.74);
}

.page-contact .aside-note p {
  margin: 0 0 12px;
}

.page-contact .aside-note p:last-child {
  margin-bottom: 0;
}

.page-contact .aside-note__label {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ice);
}

.page-contact .aside-note__mail {
  font-size: 14px;
  letter-spacing: -0.01em;
  color: var(--ice-soft);
  word-break: break-all;
}

.page-contact .aside-note__links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-contact .contact-band--light .aside-note {
  border-left-color: var(--ct-paper-line);
  color: var(--line);
}

.page-contact .contact-band--light .aside-note__label {
  color: var(--cloud);
}

/* ---------- 流程条 ---------- */
.page-contact .flow {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-contact .flow__step {
  position: relative;
  padding: 0 0 28px 30px;
  border-left: 1px solid var(--ct-ice-line);
}

.page-contact .flow__step:last-child {
  padding-bottom: 0;
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ice);
  box-shadow: 0 0 0 4px rgba(99, 230, 214, 0.14);
}

.page-contact .flow__num {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--ice);
}

.page-contact .flow__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.8vw, 22px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-contact .flow__text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(244, 247, 251, 0.76);
}

/* ---------- 图片框 ---------- */
.page-contact .contact-figure {
  margin: 0;
}

.page-contact .contact-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-contact .contact-figure .image-frame__caption {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--steel);
}

.page-contact .contact-band--light .contact-figure .image-frame__caption {
  color: var(--line);
}

/* ---------- 手机入口说明列表 ---------- */
.page-contact .describe-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--ct-ice-line);
}

.page-contact .describe-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  padding: 16px clamp(14px, 2.6vw, 20px);
  background: var(--cloud);
}

.page-contact .describe-item__num {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ice);
  padding-top: 2px;
}

.page-contact .describe-item__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .text-link {
  color: var(--ice);
  text-decoration: underline;
  text-underline-offset: 4px;
  font-size: 13.5px;
}

.page-contact .text-link:hover,
.page-contact .text-link:focus-visible {
  color: var(--ice-soft);
}

/* ---------- 合作咨询 ---------- */
.page-contact .partner-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .partner-item {
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

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

.page-contact .partner-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ice-soft);
}

.page-contact .partner-item__text {
  margin: 7px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(244, 247, 251, 0.76);
}

/* ---------- 地址块 ---------- */
.page-contact .address-block {
  padding: clamp(20px, 3.4vw, 32px);
  border: 1px solid var(--ct-ice-line);
  background: rgba(16, 28, 48, 0.72);
}

.page-contact .address-block__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ice);
}

.page-contact .address-block__text {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 3.4vw, 28px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--mist);
}

/* ---------- 快捷入口 ---------- */
.page-contact .quick-links {
  display: grid;
  gap: 1px;
  background: var(--ct-paper-line);
  border: 1px solid var(--ct-paper-line);
}

.page-contact .quick-link {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 20px;
  gap: 14px;
  align-items: center;
  padding: 16px clamp(14px, 3vw, 22px);
  background: var(--mist);
  color: var(--ink);
  text-decoration: none;
}

.page-contact .quick-link:hover,
.page-contact .quick-link:focus-visible {
  background: #e8eef6;
}

.page-contact .quick-link:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: -2px;
}

.page-contact .quick-link__num {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cloud);
}

.page-contact .quick-link__body {
  display: grid;
  gap: 4px;
}

.page-contact .quick-link__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--night);
}

.page-contact .quick-link__text {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--line);
}

.page-contact .quick-link__arrow {
  font-size: 16px;
  color: var(--cloud);
  text-align: right;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .contact-strip .data-strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .band-head {
    grid-template-columns: 76px minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .quick-link {
    grid-template-columns: 56px minmax(0, 1fr) 24px;
    gap: 18px;
    padding: 18px clamp(18px, 3vw, 26px);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-contact .content-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.8fr);
    align-items: start;
  }

  .page-contact .band-head {
    grid-template-columns: 92px minmax(0, 1fr);
  }
}

@media (min-width: 860px) {
  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .flow__step {
    padding: 28px 22px 0 0;
    border-left: 0;
    border-top: 1px solid var(--ct-ice-line);
  }

  .page-contact .flow__step:last-child {
    padding-bottom: 0;
  }

  .page-contact .flow__step::before {
    left: 0;
    top: -5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition: none !important;
    animation: none !important;
  }
}