.page-contact {
  --pc-pad: clamp(1.15rem, 2.6vw, 1.85rem);
  --pc-gap: clamp(1.15rem, 2.6vw, 2rem);
  --pc-hairline: rgba(159, 247, 242, .14);
  display: block;
  padding-bottom: clamp(2rem, 5vw, 4rem);
}

.page-contact *,
.page-contact *::before,
.page-contact *::after {
  box-sizing: border-box;
}

.page-contact h1,
.page-contact h2,
.page-contact h3,
.page-contact p,
.page-contact ul,
.page-contact ol,
.page-contact dl,
.page-contact dd,
.page-contact figure {
  margin-top: 0;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding-top: clamp(1rem, 3vw, 2rem);
}

.page-contact .contact-hero .crumbs {
  margin-bottom: clamp(1.2rem, 3vw, 2.2rem);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: end;
}

.page-contact .contact-hero__letter h1 {
  font-size: clamp(2.05rem, 6vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -.03em;
  margin-bottom: 1rem;
}

.page-contact .contact-hero__letter .lede {
  margin-bottom: 1.4rem;
}

.page-contact .contact-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

.page-contact .contact-hero__cta .btn {
  min-width: 9.5rem;
  justify-content: center;
}

.page-contact .contact-hero__card {
  background: var(--paper);
  color: var(--ink);
  padding: var(--pc-pad);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.page-contact .contact-hero__card .tag--ember {
  display: inline-block;
  margin-bottom: .9rem;
}

.page-contact .contact-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}

.page-contact .contact-facts li {
  display: grid;
  gap: .12rem;
  padding-bottom: .6rem;
  border-bottom: 1px dashed rgba(5, 11, 26, .18);
}

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

.page-contact .contact-facts__k {
  font-size: .7rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(5, 11, 26, .55);
}

.page-contact .contact-facts__v {
  font-size: .95rem;
  line-height: 1.5;
  color: var(--ink);
}

.page-contact .contact-hero__media {
  position: relative;
  margin: clamp(1.4rem, 3.5vw, 2.6rem) 0 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--pc-hairline);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: clamp(180px, 32vw, 380px);
  object-fit: cover;
}

.page-contact .contact-hero__media .media__label {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  padding: .3rem .7rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(159, 247, 242, .28);
  background: rgba(5, 11, 26, .78);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--cyan-soft);
}

/* ---------- 合作方向 ---------- */

.page-contact .contact-tracks__head {
  max-width: 58ch;
  margin-bottom: clamp(1.6rem, 4vw, 2.8rem);
}

.page-contact .contact-tracks__head h2 {
  margin: .6rem 0 .9rem;
}

.page-contact .tracks {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: start;
}

.page-contact .track {
  display: flex;
  flex-direction: column;
  gap: .85rem;
  padding: var(--pc-pad);
  border-top: 2px solid rgba(34, 230, 224, .55);
  border-radius: var(--radius);
}

.page-contact .track__no {
  font-size: clamp(2.3rem, 6vw, 3.5rem);
  line-height: .85;
  letter-spacing: -.04em;
  color: rgba(159, 247, 242, .32);
  margin: 0;
}

.page-contact .track__tag {
  align-self: flex-start;
  padding: .28rem .72rem;
  border-radius: var(--radius-pill);
  background: var(--wine);
  border: 1px solid rgba(159, 247, 242, .22);
  color: var(--cyan-soft);
  font-size: .7rem;
  letter-spacing: .14em;
}

.page-contact .track h3 {
  margin: 0;
  font-size: 1.12rem;
  line-height: 1.4;
}

.page-contact .track > p {
  margin: 0;
  color: var(--muted);
  font-size: .94rem;
  line-height: 1.75;
}

.page-contact .track__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-contact .track__list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .9rem;
  line-height: 1.6;
  color: var(--text);
}

.page-contact .track__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}

/* ---------- 直接联系 ---------- */

.page-contact .contact-channels__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  align-items: start;
}

.page-contact .chan {
  padding: var(--pc-pad);
  border: 1px solid var(--pc-hairline);
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: linear-gradient(120deg, rgba(6, 50, 58, .78), rgba(20, 27, 61, .62));
}

.page-contact .chan + .chan {
  margin-top: .85rem;
}

.page-contact .chan__k {
  margin: 0;
  font-size: .7rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .chan__v {
  margin: .38rem 0 .55rem;
  font-family: var(--font-mono);
  font-size: clamp(.92rem, 2.6vw, 1.22rem);
  letter-spacing: .01em;
  color: var(--cyan);
  overflow-wrap: anywhere;
  user-select: all;
  -webkit-user-select: all;
  cursor: text;
}

.page-contact .chan__note {
  margin: 0;
  font-size: .87rem;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .chan__hint {
  margin: .55rem 0 0;
  font-size: .76rem;
  letter-spacing: .04em;
  color: var(--muted);
}

.page-contact .wishlist {
  margin: 0;
  padding: var(--pc-pad);
  border: 1px solid rgba(159, 247, 242, .3);
  border-radius: var(--radius);
  background: rgba(20, 27, 61, .58);
}

.page-contact .wishlist legend {
  padding: 0 .45rem;
  font-size: .74rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan-soft);
}

.page-contact .wishlist__hint {
  margin: .2rem 0 1rem;
  font-size: .87rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .wishlist__item {
  display: flex;
  align-items: flex-start;
  gap: .7rem;
  padding: .62rem 0;
  border-bottom: 1px dashed var(--pc-hairline);
  cursor: pointer;
}

.page-contact .wishlist__item:last-of-type {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .wishlist__item input {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  margin: .16em 0 0;
  border: 1.5px solid rgba(159, 247, 242, .45);
  border-radius: 6px;
  background: rgba(5, 11, 26, .75);
  position: relative;
  cursor: pointer;
}

.page-contact .wishlist__item input:checked {
  background: var(--ember);
  border-color: var(--ember);
}

.page-contact .wishlist__item input:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border: solid #0B1024;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.page-contact .wishlist__item input:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .wishlist__item span {
  font-size: .94rem;
  line-height: 1.6;
  color: var(--text);
}

/* ---------- 值守节奏 ---------- */

.page-contact .hours {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
}

.page-contact .hours__item {
  padding: var(--pc-pad);
  border: 1px solid var(--pc-hairline);
  border-radius: var(--radius);
  background: rgba(20, 27, 61, .5);
}

.page-contact .hours__v {
  margin: 0 0 .35rem;
  font-size: clamp(1.35rem, 3.4vw, 1.85rem);
  line-height: 1.1;
  color: var(--cyan);
}

.page-contact .hours__k {
  margin: 0 0 .6rem;
  font-size: .78rem;
  letter-spacing: .14em;
  color: var(--paper);
}

.page-contact .hours__d {
  margin: 0;
  font-size: .88rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .hours__d a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 办公与备案 ---------- */

.page-contact .contact-office__panel {
  position: relative;
  overflow: hidden;
  padding: var(--pc-pad);
  border-radius: var(--radius);
  border: 1px solid var(--pc-hairline);
  background: linear-gradient(150deg, rgba(6, 50, 58, .85), rgba(20, 27, 61, .85) 55%, rgba(74, 15, 42, .6));
}

.page-contact .contact-office__tex {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .18;
  pointer-events: none;
}

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

.page-contact .office-list {
  margin: 1.2rem 0 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .9rem;
}

.page-contact .office-list__row {
  display: grid;
  gap: .2rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--pc-hairline);
}

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

.page-contact .office-list dt {
  font-size: .7rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .office-list dd {
  margin: 0;
  font-size: .95rem;
  line-height: 1.7;
  color: var(--text);
}

/* ---------- 对接流程 ---------- */

.page-contact .contact-flow .lede {
  margin-bottom: clamp(1.4rem, 3.5vw, 2.2rem);
}

.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
}

.page-contact .flow__step {
  position: relative;
  padding: calc(var(--pc-pad) + .25rem) var(--pc-pad) var(--pc-pad);
  border: 1px solid var(--pc-hairline);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(20, 27, 61, .78), rgba(5, 11, 26, .62));
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(34, 230, 224, 0));
}

.page-contact .flow__step.is-current::before {
  background: linear-gradient(90deg, var(--ember), rgba(255, 75, 43, .08));
}

.page-contact .flow__no {
  display: inline-block;
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  line-height: 1;
  letter-spacing: -.04em;
  color: rgba(159, 247, 242, .3);
}

.page-contact .flow__step.is-current .flow__no {
  color: var(--ember);
}

.page-contact .flow__title {
  margin: .85rem 0 .3rem;
  font-size: 1.04rem;
  line-height: 1.4;
}

.page-contact .flow__time {
  margin: 0 0 .8rem;
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-contact .flow__more summary {
  list-style: none;
  cursor: pointer;
  font-size: .82rem;
  letter-spacing: .05em;
  color: var(--muted);
}

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

.page-contact .flow__more summary::before {
  content: "＋ ";
  color: var(--ember);
}

.page-contact .flow__more[open] summary::before {
  content: "－ ";
}

.page-contact .flow__more p {
  margin: .55rem 0 0;
  font-size: .85rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .flow__more summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .contact-flow__foot {
  margin: clamp(1.6rem, 4vw, 2.6rem) 0 0;
  padding-top: 1.2rem;
  border-top: 1px solid var(--pc-hairline);
  font-size: .92rem;
  line-height: 1.8;
  color: var(--muted);
  max-width: 62ch;
}

.page-contact .contact-flow__foot a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 桌面布局 ---------- */

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(270px, .78fr);
    gap: clamp(1.6rem, 4vw, 3.4rem);
  }

  .page-contact .contact-channels__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: clamp(1.6rem, 4vw, 3rem);
  }

  .page-contact .hours {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .tracks {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(1.2rem, 2.4vw, 1.8rem);
  }

  .page-contact .track:nth-child(2) {
    margin-top: 2.2rem;
  }

  .page-contact .track:nth-child(3) {
    margin-top: 4.4rem;
  }

  .page-contact .office-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem 2.4rem;
  }

  .page-contact .office-list__row:nth-last-child(-n + 2) {
    border-bottom: 0;
    padding-bottom: 0;
  }
}

@media (min-width: 1120px) {
  .page-contact .contact-office__panel {
    padding: clamp(2rem, 3.6vw, 3rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .track,
  .page-contact .chan,
  .page-contact .hours__item,
  .page-contact .flow__step {
    transition: none;
  }
}