.page-contact {
  --pc-gap: clamp(16px, 2.2vw, 28px);
  --pc-rail: 268px;
  --pc-hair: 1px solid rgba(61, 90, 115, 0.55);
  background: var(--ink-0);
  color: var(--frost);
  padding-bottom: clamp(32px, 5vw, 64px);
  overflow-x: hidden;
}

.page-contact .breadcrumb {
  padding-block: clamp(16px, 2.4vw, 26px) 0;
}

.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(232, 241, 246, 0.58);
}

.page-contact .breadcrumb__link {
  color: rgba(232, 241, 246, 0.78);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-contact .breadcrumb__sep {
  color: var(--rule);
}

.page-contact .breadcrumb__current {
  color: var(--signal);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: var(--pc-gap);
  padding-block: clamp(24px, 4vw, 52px) clamp(32px, 5vw, 72px);
}

.page-contact .contact-hero__text {
  display: grid;
  gap: clamp(12px, 1.6vw, 18px);
  align-content: start;
}

.page-contact .contact-hero .eyebrow {
  color: var(--venue);
  letter-spacing: 0.16em;
}

.page-contact .contact-hero h1 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.9rem, 4.6vw, 3.2rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--white);
  max-width: 20ch;
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 48ch;
  font-size: clamp(0.95rem, 1.2vw, 1.04rem);
  line-height: 1.85;
  color: rgba(232, 241, 246, 0.82);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 4px;
}

.page-contact .contact-hero__media {
  position: relative;
  margin: 0;
  border: var(--pc-hair);
  background: var(--ink-2);
  min-width: 0;
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: clamp(200px, 42vw, 380px);
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

.page-contact .contact-hero__media .img-frame__tag {
  position: absolute;
  left: -1px;
  bottom: -1px;
  background: var(--signal);
  color: var(--on-signal);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  padding: 5px 10px;
}

/* ---------- 章节骨架 ---------- */
.page-contact .sec {
  padding-block: clamp(40px, 6vw, 84px);
}

.page-contact .sec--band {
  background: var(--ink-1);
  border-block: var(--pc-hair);
}

.page-contact .sec--paper {
  background: var(--paper);
  color: var(--ink-dark);
}

.page-contact .sec__head {
  display: grid;
  gap: clamp(10px, 1.6vw, 22px);
  align-items: start;
  margin-bottom: clamp(24px, 3.4vw, 44px);
}

.page-contact .sec__head-text {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.page-contact .chapter-num {
  font-size: clamp(2.6rem, 7vw, 5.2rem);
  line-height: 0.86;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px var(--rule);
  letter-spacing: -0.02em;
}

.page-contact .sec--paper .chapter-num {
  -webkit-text-stroke: 1px rgba(17, 20, 23, 0.35);
}

.page-contact .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-contact .sec h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.3rem, 2.4vw, 1.95rem);
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--white);
}

.page-contact .sec--paper h2 {
  color: var(--ink-dark);
}

.page-contact .sec__intro {
  margin: 0;
  max-width: 62ch;
  font-size: 0.97rem;
  line-height: 1.85;
  color: rgba(232, 241, 246, 0.76);
}

.page-contact .sec--paper .sec__intro {
  color: rgba(17, 20, 23, 0.78);
}

/* ---------- 01 通道选择 ---------- */
.page-contact .channel-grid {
  display: grid;
  gap: var(--pc-gap);
  align-items: start;
}

.page-contact .channel-rail {
  display: grid;
  gap: 10px;
}

.page-contact .channel-pick {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num label"
    "num desc";
  gap: 2px 12px;
  padding: 14px 16px;
  border: var(--pc-hair);
  border-left: 3px solid var(--ink-2);
  background: var(--ink-1);
  color: var(--frost);
  text-decoration: none;
  transition: border-color var(--ease), transform var(--ease), background var(--ease);
}

.page-contact .channel-pick:hover,
.page-contact .channel-pick:focus-visible {
  border-left-color: var(--signal);
  background: var(--ink-2);
  transform: translateX(3px);
}

.page-contact .channel-pick__num {
  grid-area: num;
  align-self: center;
  font-size: 1.2rem;
  color: var(--signal);
}

.page-contact .channel-pick__label {
  grid-area: label;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.02rem;
  color: var(--white);
}

.page-contact .channel-pick__desc {
  grid-area: desc;
  font-size: 0.8rem;
  line-height: 1.5;
  color: rgba(232, 241, 246, 0.62);
}

.page-contact .channel-rail__note {
  margin: 2px 0 0;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--venue);
}

.page-contact .dossier-list {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.page-contact .dossier {
  border: var(--pc-hair);
  border-left: 3px solid var(--ink-2);
  background: var(--ink-1);
  transition: border-color var(--ease);
}

.page-contact .dossier[data-open] {
  border-left-color: var(--signal);
}

.page-contact .dossier__trigger {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  width: 100%;
  padding: 14px 16px;
  background: none;
  border: 0;
  color: inherit;
  text-align: left;
  cursor: pointer;
  font: inherit;
}

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

.page-contact .dossier__sign {
  font-size: 1.05rem;
  color: var(--signal);
}

.page-contact .dossier__head {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.page-contact .dossier__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1rem;
  color: var(--white);
}

.page-contact .dossier__sub {
  font-size: 0.8rem;
  line-height: 1.5;
  color: rgba(232, 241, 246, 0.62);
}

.page-contact .dossier__chev {
  font-size: 1.05rem;
  color: var(--rule);
  transition: transform var(--ease), color var(--ease);
}

.page-contact .dossier[data-open] .dossier__chev {
  transform: rotate(45deg);
  color: var(--signal);
}

.page-contact .dossier__body {
  padding: 0 16px 16px;
  display: grid;
  gap: 10px;
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(232, 241, 246, 0.78);
}

.page-contact .dossier__body p {
  margin: 0;
}

.page-contact .dossier__body a {
  color: var(--venue);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 191, 143, 0.45);
}

.page-contact .dossier__body a:hover,
.page-contact .dossier__body a:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-contact .dossier__link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

/* ---------- 02 客服邮箱与电话 ---------- */
.page-contact .contact-cards {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .contact-card {
  position: relative;
  display: grid;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 28px);
  border: var(--pc-hair);
  background: linear-gradient(160deg, rgba(22, 50, 74, 0.9), rgba(12, 26, 38, 0.96));
  min-width: 0;
  overflow-wrap: anywhere;
}

.page-contact .contact-card__label {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--venue);
}

.page-contact .contact-card__value {
  margin: 0;
  font-size: clamp(1.05rem, 2vw, 1.5rem);
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--white);
  border-bottom: 1px dashed rgba(61, 90, 115, 0.75);
  padding-bottom: 10px;
}

.page-contact .contact-card__hint {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(232, 241, 246, 0.74);
}

.page-contact .contact-card .tag {
  justify-self: start;
}

/* ---------- 03 办公地址 ---------- */
.page-contact .addr-card {
  display: grid;
  gap: 0;
  border: var(--pc-hair);
  background: var(--ink-1);
  min-width: 0;
}

.page-contact .addr-card__media {
  position: relative;
  overflow: hidden;
  background: var(--ink-2);
  border-bottom: var(--pc-hair);
}

.page-contact .addr-card__media img {
  display: block;
  width: 100%;
  height: clamp(170px, 34vw, 300px);
  object-fit: cover;
  filter: saturate(0.7) contrast(1.08);
  transition: transform 240ms ease;
}

.page-contact .addr-card:hover .addr-card__media img {
  transform: scale(1.03);
}

.page-contact .addr-card__body {
  display: grid;
  gap: 12px;
  padding: clamp(18px, 2.6vw, 30px);
  min-width: 0;
}

.page-contact .addr-card__label {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-contact .addr-card__value {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.05rem, 2.2vw, 1.45rem);
  line-height: 1.5;
  color: var(--white);
}

.page-contact .addr-card__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(232, 241, 246, 0.76);
}

.page-contact .addr-card__list li {
  padding-left: 16px;
  position: relative;
}

.page-contact .addr-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 7px;
  height: 7px;
  background: var(--venue);
}

.page-contact .addr-card__tip {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--signal);
  border-top: 1px dashed rgba(61, 90, 115, 0.75);
  padding-top: 10px;
}

/* ---------- 04 三步清单 ---------- */
.page-contact .steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
  counter-reset: none;
}

.page-contact .step {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num title"
    "num text";
  gap: 4px 16px;
  padding: 16px;
  border: var(--pc-hair);
  border-left: 3px solid var(--venue);
  background: rgba(12, 26, 38, 0.72);
  transition: border-left-color var(--ease), background var(--ease);
}

.page-contact .step:hover {
  border-left-color: var(--signal);
  background: var(--ink-1);
}

.page-contact .step__num {
  grid-area: num;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--signal);
  align-self: start;
}

.page-contact .step__title {
  grid-area: title;
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1rem;
  color: var(--white);
}

.page-contact .step__text {
  grid-area: text;
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(232, 241, 246, 0.74);
}

/* ---------- 05 商务与场馆合作 ---------- */
.page-contact .coop-grid {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .coop-card {
  position: relative;
  display: grid;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 26px);
  border: var(--pc-hair);
  background: linear-gradient(180deg, rgba(22, 50, 74, 0.62), rgba(7, 16, 24, 0.9));
  min-width: 0;
  transition: border-color var(--ease), transform var(--ease);
}

.page-contact .coop-card:hover {
  border-color: var(--signal);
  transform: translateY(-2px);
}

.page-contact .coop-card .tag {
  justify-self: start;
}

.page-contact .coop-card__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.08rem;
  color: var(--white);
}

.page-contact .coop-card__text {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.82;
  color: rgba(232, 241, 246, 0.76);
}

.page-contact .coop-card__meta {
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed rgba(61, 90, 115, 0.7);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--venue);
}

.page-contact .coop-foot {
  margin: clamp(20px, 3vw, 32px) 0 0;
  max-width: 70ch;
  font-size: 0.9rem;
  line-height: 1.85;
  color: rgba(232, 241, 246, 0.7);
}

.page-contact .coop-foot a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 26, 0.45);
}

.page-contact .coop-foot a:hover,
.page-contact .coop-foot a:focus-visible {
  border-bottom-color: var(--white);
  color: var(--white);
}

/* ---------- 06 服务时间与备案 ---------- */
.page-contact .hours-grid {
  display: grid;
  gap: 1px;
  background: rgba(17, 20, 23, 0.16);
  border: 1px solid rgba(17, 20, 23, 0.18);
}

.page-contact .hours-item {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  background: var(--paper);
  min-width: 0;
  overflow-wrap: anywhere;
}

.page-contact .hours-item__label {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(17, 20, 23, 0.6);
}

.page-contact .hours-item__value {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--ink-dark);
}

.page-contact .hours-item__value.mono {
  letter-spacing: 0.02em;
}

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

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

  .page-contact .step {
    grid-template-columns: 1fr;
    grid-template-areas:
      "num"
      "title"
      "text";
    gap: 8px;
  }

  .page-contact .coop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .hours-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: end;
    gap: clamp(24px, 3.4vw, 48px);
  }

  .page-contact .sec__head {
    grid-template-columns: auto minmax(0, 1fr);
    gap: clamp(18px, 3vw, 40px);
  }

  .page-contact .channel-grid {
    grid-template-columns: var(--pc-rail) minmax(0, 1fr);
    gap: clamp(24px, 3.2vw, 44px);
  }

  .page-contact .channel-rail {
    position: sticky;
    top: calc(var(--header-h) + 18px);
  }

  .page-contact .addr-card {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .page-contact .addr-card__media {
    border-bottom: 0;
    border-right: var(--pc-hair);
  }

  .page-contact .addr-card__media img {
    height: 100%;
    min-height: 280px;
  }

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

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-pick,
  .page-contact .coop-card,
  .page-contact .addr-card__media img,
  .page-contact .dossier__chev {
    transition: none;
    transform: none;
  }
}