.page-contact {
  --pc-gap: clamp(1rem, 2.6vw, 1.75rem);
  --pc-pad: clamp(1.1rem, 2.4vw, 1.7rem);
  background: var(--ink);
  color: var(--text);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--header-h) + clamp(1.75rem, 5vw, 3.5rem));
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
  background:
    radial-gradient(120% 90% at 88% 6%, rgba(54, 242, 192, 0.15), transparent 55%),
    radial-gradient(90% 80% at 0% 100%, rgba(255, 138, 61, 0.11), transparent 55%),
    var(--ink);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.26;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 92%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 92%);
  pointer-events: none;
}

.page-contact .contact-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: end;
}

.page-contact .breadcrumb {
  margin-bottom: 1.1rem;
}

.page-contact .contact-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.5rem, 7.4vw, 4.9rem);
  line-height: 0.98;
  letter-spacing: -0.012em;
  max-width: 15ch;
}

.page-contact .contact-hero__lede {
  margin: 1.15rem 0 0;
  max-width: 46ch;
  color: var(--text);
}

.page-contact .contact-hero__sub {
  margin: 0.7rem 0 0;
  max-width: 46ch;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.6rem;
}

.page-contact .contact-hero__flags {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.4rem;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-contact .contact-hero__flags li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.page-contact .contact-hero__media {
  margin: 0;
  border: 1px solid var(--grid);
}

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

/* ---------- 联系信息卡 + 路径 ---------- */
.page-contact .contact-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: start;
}

.page-contact .contact-card {
  padding: var(--pc-pad);
  background: linear-gradient(180deg, var(--module), rgba(11, 27, 46, 0.35));
  border: 1px solid var(--grid);
  border-left: 2px solid var(--teal);
}

.page-contact .contact-card__rows {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .contact-card__row {
  padding: clamp(0.95rem, 2vw, 1.35rem) 0;
  border-bottom: 1px solid var(--grid);
}

.page-contact .contact-card__row:first-child {
  padding-top: 0.25rem;
}

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

.page-contact .contact-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.page-contact .contact-card__key {
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .contact-card__value {
  margin: 0.4rem 0 0;
  font-family: var(--font-num);
  font-size: clamp(1.05rem, 2.4vw, 1.5rem);
  line-height: 1.35;
  color: var(--text);
  letter-spacing: 0.01em;
  word-break: break-word;
  -webkit-user-select: all;
  user-select: all;
}

.page-contact .contact-card__note {
  margin: 0.45rem 0 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--muted);
  max-width: 52ch;
}

.page-contact .contact-route {
  padding: var(--pc-pad);
  background: var(--module);
  border: 1px solid var(--grid);
}

.page-contact .contact-route .panel__title {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.3rem, 2.6vw, 1.75rem);
  line-height: 1.2;
}

.page-contact .route {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
}

.page-contact .route__step {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.9rem;
  padding-bottom: 1.3rem;
}

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

.page-contact .route__step::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 34px;
  bottom: 0;
  width: 1px;
  background: var(--grid);
}

.page-contact .route__step:last-child::before {
  display: none;
}

.page-contact .route__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 33px;
  height: 33px;
  border: 1px solid var(--teal-deep);
  color: var(--teal);
  font-family: var(--font-num);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  flex: none;
}

.page-contact .route__title {
  margin: 0.2rem 0 0;
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-contact .route__text {
  margin: 0.35rem 0 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 回复安排 ---------- */
.page-contact .response-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
}

.page-contact .response-item {
  padding: 1.15rem 1.15rem 1.35rem;
  background: var(--module);
  border: 1px solid var(--grid);
  border-top: 2px solid var(--teal);
}

.page-contact .response-item__idx {
  display: block;
  font-family: var(--font-num);
  font-size: 0.8125rem;
  letter-spacing: 0.18em;
  color: var(--teal);
}

.page-contact .response-item__title {
  margin: 0.6rem 0 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  line-height: 1.3;
}

.page-contact .response-item__text {
  margin: 0.55rem 0 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .response-item__text a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(54, 242, 192, 0.4);
}

.page-contact .response-item__text a:hover,
.page-contact .response-item__text a:focus-visible {
  border-bottom-color: var(--teal);
}

/* ---------- 合作咨询 ---------- */
.page-contact .partner-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: calc(var(--pc-gap) * 1.5);
}

.page-contact .partner-split__intro .section-title {
  margin-top: 0.5rem;
}

.page-contact .partner-split__text {
  margin: 1rem 0 0;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--muted);
  max-width: 48ch;
}

.page-contact .partner-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--grid);
}

.page-contact .partner-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1rem;
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--grid);
}

.page-contact .partner-list__num {
  font-family: var(--font-num);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--orange);
  padding-top: 0.22rem;
}

.page-contact .partner-list__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}

.page-contact .partner-list__body p {
  margin: 0.4rem 0 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 反馈准备清单 ---------- */
.page-contact .prep-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: calc(var(--pc-gap) * 1.4);
  align-items: start;
}

.page-contact .prep-split__lede {
  margin: 1rem 0 0;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--muted);
  max-width: 50ch;
}

.page-contact .prep {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

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

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

.page-contact .prep__label {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.85rem;
  align-items: start;
  padding: 0.85rem 1rem;
  background: var(--module);
  border: 1px solid var(--grid);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-contact .prep__label:hover {
  border-color: var(--edge);
}

.page-contact .prep__tick {
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 0.15rem;
  border: 1px solid var(--edge);
  flex: none;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.page-contact .prep__text {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .prep__text strong {
  display: block;
  margin-bottom: 0.15rem;
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
}

.page-contact .prep__box:checked + .prep__label {
  border-color: var(--teal-deep);
  background: rgba(15, 169, 138, 0.13);
}

.page-contact .prep__box:checked + .prep__label .prep__tick {
  background: var(--teal);
  border-color: var(--teal);
}

.page-contact .prep__box:checked + .prep__label .prep__tick::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(45deg);
}

.page-contact .prep__box:focus-visible + .prep__label {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.page-contact .prep-split__media {
  margin: 0;
  border: 1px solid var(--grid);
}

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

/* ---------- 常见场景 ---------- */
.page-contact .scene-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
}

.page-contact .scene {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.15rem 1.05rem 1.25rem;
  background: var(--module);
  border: 1px solid var(--grid);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-contact .scene::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 0;
  background: var(--teal);
  transition: height 0.25s ease;
}

.page-contact .scene:hover,
.page-contact .scene:focus-visible {
  border-color: var(--edge);
  background: var(--panel);
}

.page-contact .scene:hover::after,
.page-contact .scene:focus-visible::after {
  height: 100%;
}

.page-contact .scene:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.page-contact .scene__idx {
  font-family: var(--font-num);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-contact .scene__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  line-height: 1.3;
}

.page-contact .scene__text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--muted);
  flex: 1 1 auto;
}

.page-contact .scene__go {
  margin-top: 0.35rem;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--teal);
}

.page-contact .scene__go::after {
  content: " →";
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-contact .response-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  }

  .page-contact .contact-split {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
    gap: clamp(1.25rem, 3vw, 2.25rem);
  }

  .page-contact .partner-split {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: clamp(2rem, 5vw, 3.75rem);
  }

  .page-contact .prep-split {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    gap: clamp(1.6rem, 4vw, 3rem);
  }
}

@media (min-width: 1080px) {
  .page-contact .scene-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .prep__label,
  .page-contact .prep__tick,
  .page-contact .scene,
  .page-contact .scene::after,
  .page-contact .response-item__text a {
    transition: none;
  }

  .page-contact .scene:hover::after,
  .page-contact .scene:focus-visible::after {
    height: 2px;
    width: 100%;
  }
}