/* ================= page-contact ================= */

.page-contact {
  padding-top: var(--header-h);
  --pc-wedge: clamp(26px, 5vw, 60px);
  --pc-wedge-sm: clamp(22px, 4vw, 48px);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-head {
  position: relative;
  margin-top: calc(-1 * var(--header-h));
  padding: calc(var(--header-h) + clamp(2rem, 5.5vw, 4rem)) 0 clamp(5rem, 11vw, 8rem);
  background:
    radial-gradient(130% 100% at 92% 0%, rgba(53, 224, 255, .15), transparent 58%),
    radial-gradient(100% 92% at 4% 100%, rgba(255, 106, 26, .18), transparent 62%),
    var(--ink);
  color: var(--paper);
  overflow: hidden;
}

.page-contact .contact-head::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--pc-wedge);
  background: var(--paper);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
}

.page-contact .contact-head__inner {
  position: relative;
  z-index: 2;
}

.page-contact .contact-head .breadcrumb {
  margin-bottom: 1.5rem;
  font-size: .8rem;
  letter-spacing: .04em;
  color: rgba(242, 246, 244, .55);
}

.page-contact .contact-head .breadcrumb a {
  color: rgba(242, 246, 244, .8);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .contact-head .breadcrumb a:hover {
  color: var(--orange);
  border-bottom-color: currentColor;
}

.page-contact .contact-head .breadcrumb__sep {
  margin: 0 .45rem;
  color: rgba(242, 246, 244, .35);
}

.page-contact .contact-head h1 {
  margin: 0 0 1.35rem;
  max-width: 17em;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.95rem, 6vw, 4.1rem);
  line-height: 1.03;
  letter-spacing: -.022em;
  color: var(--white);
  text-wrap: balance;
}

.page-contact .contact-head .section-lead {
  max-width: 35em;
  margin: 0;
  font-size: clamp(.95rem, 1.5vw, 1.06rem);
  line-height: 1.75;
  color: rgba(242, 246, 244, .74);
}

.page-contact .contact-head__quick {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .7rem;
  margin: 1.85rem 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-head__quick li {
  padding: .34rem .72rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .04em;
  color: rgba(242, 246, 244, .82);
  border: 1px solid var(--line-dark);
  border-radius: 999px;
}

/* ---------- 联系方式 + 反馈选择器 ---------- */

.page-contact .contact-split {
  position: relative;
  padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(3rem, 7vw, 5.5rem);
  background: var(--paper);
}

.page-contact .contact-split__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4.5vw, 3.25rem);
  align-items: start;
}

.page-contact .contact-split__note {
  margin: .35rem 0 1.5rem;
  max-width: 30em;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .channel {
  position: relative;
  margin-bottom: .95rem;
  padding: 1.15rem 1.25rem 1.3rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-s);
  transition: box-shadow .22s var(--ease), transform .22s var(--ease);
}

.page-contact .channel:last-child {
  margin-bottom: 0;
}

.page-contact .channel:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-m);
}

.page-contact .channel--mail {
  border-top: 3px solid var(--orange);
}

.page-contact .channel--phone {
  border-top: 3px solid var(--blue);
}

.page-contact .channel--addr {
  border-top: 3px solid var(--lime);
}

.page-contact .channel__tag {
  display: inline-block;
  margin-bottom: .7rem;
  padding: .2rem .55rem;
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.page-contact .channel__label {
  margin: 0 0 .45rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: .82rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .channel__value {
  margin: 0 0 .6rem;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1rem, 2.3vw, 1.32rem);
  line-height: 1.32;
  letter-spacing: -.01em;
  color: var(--text);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel__value--text {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1rem, 2.1vw, 1.2rem);
  letter-spacing: 0;
}

.page-contact .channel__desc {
  margin: 0;
  font-size: .88rem;
  line-height: 1.72;
  color: var(--muted);
}

/* 选择器 */

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

.page-contact .picker {
  margin-top: 1.5rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-s);
  overflow: hidden;
}

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

.page-contact .picker__tab {
  appearance: none;
  position: relative;
  padding: .9rem .55rem;
  border: 0;
  background: var(--white);
  font-family: var(--font-body);
  font-size: .88rem;
  font-weight: 700;
  color: var(--muted);
  cursor: pointer;
  transition: color .18s var(--ease), background .18s var(--ease);
}

.page-contact .picker__tab:hover {
  color: var(--text);
}

.page-contact .picker__tab[aria-selected="true"] {
  color: var(--text);
  background: var(--paper);
}

.page-contact .picker__tab[aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--orange);
}

.page-contact .picker__panel {
  padding: 1.4rem clamp(1.1rem, 3vw, 1.8rem) 1.65rem;
}

.page-contact .picker__panel[hidden] {
  display: none;
}

.page-contact .picker__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem .6rem;
  margin-bottom: .95rem;
}

.page-contact .picker__route,
.page-contact .picker__eta {
  padding: .24rem .6rem;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .04em;
  border-radius: 999px;
}

.page-contact .picker__route {
  color: var(--white);
  background: var(--ink);
}

.page-contact .picker__eta {
  color: var(--ink);
  background: rgba(217, 255, 87, .5);
}

.page-contact .picker__panel h3 {
  margin: 0 0 .7rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.1rem, 2.4vw, 1.42rem);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-contact .picker__panel p {
  margin: 0 0 1rem;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--muted);
}

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

.page-contact .picker__list li {
  position: relative;
  padding: .62rem 0 .62rem 1.35rem;
  font-size: .9rem;
  line-height: 1.6;
  color: var(--text);
  border-bottom: 1px solid var(--line);
}

.page-contact .picker__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.12rem;
  width: 8px;
  height: 2px;
  background: var(--orange);
}

.page-contact .picker__list li:last-child {
  border-bottom: 0;
}

/* 联系场景图 */

.page-contact .contact-shot {
  position: relative;
  margin: 1.35rem 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(160deg, var(--ink) 0%, var(--ink-2) 100%);
  aspect-ratio: 3 / 2;
}

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

.page-contact .contact-shot figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.5rem .95rem .8rem;
  font-size: .8rem;
  line-height: 1.6;
  color: rgba(242, 246, 244, .92);
  background: linear-gradient(180deg, rgba(10, 28, 23, 0), rgba(10, 28, 23, .92));
}

/* ---------- 回复节奏 ---------- */

.page-contact .rhythm {
  padding: clamp(3rem, 7vw, 5rem) 0 clamp(3rem, 7vw, 5.5rem);
  background: var(--white);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .rhythm__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4vw, 3rem);
  align-items: start;
}

.page-contact .rhythm__head .section-lead {
  margin-top: .9rem;
  max-width: 34em;
  font-size: .95rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .rhythm__list {
  position: relative;
  margin: 0;
  padding: 0 0 0 1.6rem;
  list-style: none;
}

.page-contact .rhythm__list::before {
  content: "";
  position: absolute;
  left: 4px;
  top: .55rem;
  bottom: .55rem;
  width: 1px;
  background: linear-gradient(180deg, var(--orange), var(--blue) 55%, var(--lime));
  opacity: .55;
}

.page-contact .rhythm__item {
  position: relative;
  padding-bottom: 1.5rem;
}

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

.page-contact .rhythm__mark {
  position: absolute;
  left: -1.6rem;
  top: .42rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--orange);
}

.page-contact .rhythm__item:nth-child(2) .rhythm__mark {
  border-color: var(--blue);
}

.page-contact .rhythm__item:nth-child(3) .rhythm__mark {
  border-color: var(--muted);
}

.page-contact .rhythm__item:nth-child(4) .rhythm__mark {
  border-color: var(--lime);
}

.page-contact .rhythm__title {
  margin: 0 0 .35rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--text);
}

.page-contact .rhythm__item p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 合作与共建 ---------- */

.page-contact .co-build {
  padding: clamp(3rem, 7vw, 5rem) 0 clamp(3.5rem, 8vw, 6rem);
  background: var(--paper);
}

.page-contact .co-build__head {
  max-width: 42em;
}

.page-contact .co-build__head .section-lead {
  margin-top: .9rem;
  font-size: .95rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .co-build__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.page-contact .co-build__card {
  position: relative;
  padding: 1.35rem 1.3rem 1.45rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-s);
}

.page-contact .co-build__card::before {
  content: "";
  position: absolute;
  left: 1.3rem;
  top: 0;
  width: 34px;
  height: 3px;
  background: var(--orange);
}

.page-contact .co-build__card:nth-child(2)::before {
  background: var(--blue);
}

.page-contact .co-build__card:nth-child(3)::before {
  background: var(--lime);
}

.page-contact .co-build__num {
  display: block;
  margin-bottom: .6rem;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--line);
}

.page-contact .co-build__card h3 {
  margin: 0 0 .55rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.05rem;
  line-height: 1.35;
  color: var(--text);
}

.page-contact .co-build__card p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .co-build__foot {
  margin: 1.9rem 0 0;
  max-width: 44em;
  font-size: .9rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .co-build__foot a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
  padding-bottom: 1px;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .co-build__foot a:hover {
  color: var(--orange);
}

/* ---------- 方位带 ---------- */

.page-contact .bearing-band {
  position: relative;
  padding: calc(clamp(3.5rem, 9vw, 6.5rem) + var(--pc-wedge-sm)) 0 clamp(3.5rem, 9vw, 6.5rem);
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
}

.page-contact .bearing-band::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: var(--pc-wedge-sm);
  background: var(--paper);
  clip-path: polygon(0 0, 100% 0, 0 100%);
  z-index: 2;
}

.page-contact .bearing-band__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .bearing-band__bg img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: .38;
  filter: saturate(.72);
}

.page-contact .bearing-band__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 110% at 0% 100%, rgba(10, 28, 23, .97), rgba(10, 28, 23, .6) 62%),
    linear-gradient(180deg, rgba(10, 28, 23, .92), rgba(10, 28, 23, .82));
}

.page-contact .bearing-band__inner {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 3.25rem);
  align-items: center;
}

.page-contact .bearing-band__copy h2 {
  margin: .55rem 0 1rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.35rem, 3.4vw, 2.05rem);
  line-height: 1.22;
  letter-spacing: -.015em;
  color: var(--white);
}

.page-contact .bearing-band__copy p {
  margin: 0 0 .95rem;
  max-width: 34em;
  font-size: .93rem;
  line-height: 1.8;
  color: rgba(242, 246, 244, .74);
}

.page-contact .bearing-band__hint {
  padding-left: .9rem;
  border-left: 2px solid var(--lime);
  color: rgba(242, 246, 244, .86);
}

.page-contact .bearing-band__links {
  margin-top: 1.35rem;
}

.page-contact .bearing-band__links a {
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 255, .7);
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .bearing-band__links a:hover {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

.page-contact .bearing-band__map {
  min-width: 0;
}

.page-contact .bearing-map {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.page-contact .bearing-map__grid path {
  fill: none;
  stroke: rgba(242, 246, 244, .07);
  stroke-width: 1;
}

.page-contact .bearing-map__river {
  fill: none;
  stroke: var(--blue);
  stroke-width: 2.2;
  opacity: .72;
}

.page-contact .bearing-map__road {
  fill: none;
  stroke: rgba(242, 246, 244, .26);
  stroke-width: 1.3;
}

.page-contact .bearing-map__road--dash {
  stroke-dasharray: 5 7;
}

.page-contact .bearing-map__zone {
  outline: none;
}

.page-contact .bearing-map__pin {
  fill: var(--orange);
  transition: fill .2s var(--ease);
}

.page-contact .bearing-map__halo {
  fill: none;
  stroke: var(--orange);
  stroke-width: 1.4;
  opacity: 0;
  transition: opacity .2s var(--ease);
}

.page-contact .bearing-map__zone text {
  fill: rgba(242, 246, 244, .66);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .02em;
  transition: fill .2s var(--ease);
}

.page-contact .bearing-map__zone:hover .bearing-map__halo,
.page-contact .bearing-map__zone:focus-visible .bearing-map__halo {
  opacity: .85;
}

.page-contact .bearing-map__zone:hover text,
.page-contact .bearing-map__zone:focus-visible text {
  fill: var(--lime);
}

.page-contact .bearing-map__zone:hover .bearing-map__pin,
.page-contact .bearing-map__zone:focus-visible .bearing-map__pin {
  fill: var(--lime);
}

.page-contact .bearing-map__zone--here .bearing-map__pin {
  fill: var(--lime);
}

.page-contact .bearing-map__zone--here .bearing-map__halo {
  stroke: var(--lime);
  opacity: .6;
}

.page-contact .bearing-band__map-note {
  margin: .9rem 0 0;
  font-size: .78rem;
  line-height: 1.65;
  color: rgba(242, 246, 244, .48);
}

/* ---------- 响应式 ---------- */

@media (min-width: 560px) {
  .page-contact .picker__tabs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

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

@media (min-width: 880px) {
  .page-contact .rhythm__grid {
    grid-template-columns: 5fr 6fr;
  }

  .page-contact .bearing-band__inner {
    grid-template-columns: 6fr 5fr;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-split__inner {
    grid-template-columns: 5fr 6fr;
    gap: clamp(2.5rem, 5vw, 4.5rem);
  }

  .page-contact .contact-split__main {
    margin-top: 3.5rem;
  }

  .page-contact .contact-shot {
    aspect-ratio: 16 / 9;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .picker__tab,
  .page-contact .bearing-map__pin,
  .page-contact .bearing-map__halo,
  .page-contact .bearing-map__zone text,
  .page-contact .co-build__foot a,
  .page-contact .bearing-band__links a {
    transition: none;
  }

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