.page-contact {
  --ct-pad: clamp(56px, 8vw, 104px);
  background: var(--paper);
  color: var(--text);
  overflow-x: hidden;
}

/* ---------- 页头 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(30px, 5vw, 56px) 0 clamp(76px, 11vw, 136px);
  color: var(--text-inv);
  background:
    radial-gradient(110% 82% at 84% 4%, rgba(23, 162, 214, 0.28) 0%, rgba(23, 162, 214, 0) 58%),
    radial-gradient(78% 68% at 6% 98%, rgba(255, 106, 69, 0.20) 0%, rgba(255, 106, 69, 0) 60%),
    linear-gradient(158deg, var(--ink) 0%, var(--ink-2) 58%, #0c2030 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--slant)), 0 100%);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(232, 238, 242, 0.05) 1px, transparent 1px);
  background-size: 100% 56px;
}

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

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-contact .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--dur-micro) var(--ease-in);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--lemon);
}

.page-contact .contact-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: clamp(20px, 3vw, 34px) 0 14px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lake-deep);
}

.page-contact .contact-eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--coral);
}

.page-contact .contact-eyebrow--onink {
  color: var(--mist);
}

.page-contact .contact-hero__title {
  margin: 0;
  color: var(--text-inv);
  max-width: 14em;
}

.page-contact .contact-hero__title::after {
  content: "";
  display: block;
  width: clamp(84px, 18vw, 186px);
  height: 6px;
  margin-top: 20px;
  background: var(--coral);
  clip-path: polygon(0 0, 100% 0, calc(100% - 9px) 100%, 0 100%);
}

.page-contact .contact-hero__lede {
  max-width: 34em;
  margin: clamp(22px, 3vw, 30px) 0 0;
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-inv);
}

/* ---------- 通用小件 ---------- */
.page-contact .contact-channels,
.page-contact .contact-pair {
  padding: var(--ct-pad) 0;
}

.page-contact .contact-channels {
  padding-bottom: clamp(84px, 9vw, 118px);
}

.page-contact .section-head {
  max-width: 42em;
}

.page-contact .section-title {
  margin: 0;
  color: var(--text);
}

.page-contact .prose {
  margin: 18px 0 0;
  font-size: 17px;
  line-height: 1.85;
  max-width: 34em;
  color: var(--text);
}

.page-contact .prose--tight {
  margin-top: 14px;
}

.page-contact .prose--onink {
  color: var(--text-inv);
  opacity: 0.86;
}

.page-contact .link {
  color: var(--lake-deep);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
}

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

/* ---------- 渠道条 ---------- */
.page-contact .channels {
  list-style: none;
  margin: clamp(38px, 5vw, 58px) 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-contact .channel {
  --panel-bg: var(--paper-2);
  --accent: var(--lake);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 28px 22px 26px 26px;
  background: var(--panel-bg);
  border-left: 6px solid var(--accent);
  transition: background var(--dur-micro) var(--ease-in);
}

.page-contact .channel--coral {
  --accent: var(--coral);
}

.page-contact .channel--moss {
  --accent: var(--moss);
}

.page-contact .channel:hover {
  background: #e7ddcd;
}

.page-contact .channel__ghost {
  position: absolute;
  right: 14px;
  bottom: 4px;
  font-family: var(--font-num);
  font-size: 56px;
  line-height: 1;
  color: rgba(10, 22, 34, 0.08);
  pointer-events: none;
  user-select: none;
}

.page-contact .channel__kicker {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lake-deep);
}

.page-contact .channel--coral .channel__kicker {
  color: var(--coral);
}

.page-contact .channel--moss .channel__kicker {
  color: var(--moss);
}

.page-contact .channel__value {
  margin: 0;
  font-family: var(--font-num);
  font-size: clamp(17px, 1.9vw, 21px);
  line-height: 1.38;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-contact .channel--coral .channel__value {
  font-size: clamp(30px, 4.6vw, 44px);
  letter-spacing: 0.01em;
  color: var(--coral);
}

.page-contact .channel__use {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
  opacity: 0.86;
}

.page-contact .channel .btn {
  align-self: flex-start;
  margin-top: auto;
}

/* ---------- 轨迹线 ---------- */
.page-contact .contact-trail {
  padding-bottom: clamp(8px, 2vw, 18px);
}

.page-contact .contact-trail .trail {
  display: block;
  width: min(420px, 62%);
  height: 1.5px;
  background: linear-gradient(90deg, var(--lake) 0%, rgba(23, 162, 214, 0) 100%);
}

/* ---------- 核对清单 ---------- */
.page-contact .contact-checklist {
  background: var(--paper-2);
  padding: clamp(56px, 8vw, 96px) 0 clamp(64px, 9vw, 110px);
}

.page-contact .check-grid {
  display: grid;
  gap: 40px;
}

.page-contact .check-wrap {
  margin-top: 30px;
  counter-reset: remain 4;
}

.page-contact .check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .check-item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  background: var(--paper);
  border-left: 6px solid var(--lake);
  cursor: pointer;
  transition: background var(--dur-micro) var(--ease-in), border-color var(--dur-micro) var(--ease-in);
}

.page-contact .check-item:hover {
  background: #ece3d5;
}

.page-contact .check-item:has(.check-item__box:checked) {
  background: rgba(242, 209, 75, 0.34);
  border-left-color: var(--lemon);
}

.page-contact .check-item__box {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-contact .check-item__box:checked {
  counter-increment: remain -1;
}

.page-contact .check-item__mark {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 4px;
  display: grid;
  place-items: center;
  border: 2px solid var(--lake-deep);
  background: transparent;
  font-family: var(--font-num);
  font-size: 13px;
  line-height: 1;
  color: var(--ink);
  transition: background var(--dur-micro) var(--ease-in), border-color var(--dur-micro) var(--ease-in);
}

.page-contact .check-item__box:checked ~ .check-item__mark {
  background: var(--lemon);
  border-color: var(--ink);
}

.page-contact .check-item__box:checked ~ .check-item__mark::after {
  content: "✓";
}

.page-contact .check-item:focus-within .check-item__mark {
  outline: 2px solid var(--lemon);
  outline-offset: 2px;
}

.page-contact .check-item__text {
  display: block;
}

.page-contact .check-item__text strong {
  display: block;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-contact .check-item__text span {
  display: block;
  margin-top: 5px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--lake-deep);
}

.page-contact .check-count {
  margin: 22px 0 0;
  min-height: 1.4em;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--lake-deep);
}

.page-contact .check-count::before {
  content: "□ ";
  color: var(--coral);
}

.page-contact .check-count::after {
  content: counter(remain) " 项待确认";
}

.page-contact .check-note {
  margin-top: 26px;
  font-size: 15px;
  color: var(--text);
  opacity: 0.86;
}

.page-contact .check-side {
  margin: 0;
}

/* ---------- 图片框 ---------- */
.page-contact .media-frame {
  margin: 0;
  overflow: hidden;
  background: var(--ink-2);
}

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

.page-contact .media-frame__cap {
  display: block;
  padding: 12px 4px 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--lake-deep);
}

/* ---------- 属地节点 ---------- */
.page-contact .contact-node {
  position: relative;
  overflow: hidden;
  padding: clamp(60px, 8vw, 112px) 0;
  color: var(--text-inv);
  background: linear-gradient(155deg, var(--moss) 0%, #142b26 58%, #0e211d 100%);
}

.page-contact .contact-node::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(70% 60% at 88% 10%, rgba(23, 162, 214, 0.22) 0%, rgba(23, 162, 214, 0) 62%);
}

.page-contact .node-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 40px;
}

.page-contact .contact-node .section-title {
  color: var(--text-inv);
}

.page-contact .node-facts {
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .node-facts dt {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lemon);
}

.page-contact .node-facts dd {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-inv);
  opacity: 0.88;
}

.page-contact .node-address {
  --panel-bg: transparent;
  margin-top: 34px;
  padding: 22px 22px 20px 26px;
  background: rgba(232, 238, 242, 0.08);
  border-left: 6px solid var(--lake);
}

.page-contact .node-address__k {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--lemon);
}

.page-contact .node-address__v {
  margin: 10px 0 0;
  font-family: var(--font-num);
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.6;
  color: var(--text-inv);
}

.page-contact .node-address__n {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .contact-node .media-frame {
  background: var(--ink-2);
}

.page-contact .contact-node .media-frame__cap {
  color: var(--mist);
}

/* ---------- 时段与协作 ---------- */
.page-contact .contact-pair {
  padding-top: clamp(56px, 8vw, 96px);
  padding-bottom: clamp(60px, 8vw, 104px);
  display: grid;
  gap: 48px;
}

.page-contact .pair-block {
  padding-top: 22px;
  border-top: 1.5px solid rgba(23, 162, 214, 0.38);
}

.page-contact .hours-list,
.page-contact .collab-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .hours-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid rgba(12, 85, 112, 0.18);
}

.page-contact .hours-list__k {
  flex: 0 0 auto;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--coral);
}

.page-contact .hours-list__v {
  flex: 1 1 12em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-contact .collab-list li {
  padding: 16px 0;
  border-bottom: 1px solid rgba(12, 85, 112, 0.18);
}

.page-contact .collab-list__k {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.page-contact .collab-list__v {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  opacity: 0.86;
}

/* ---------- 底部备案 ---------- */
.page-contact .contact-base {
  background: var(--ink-2);
  padding: 34px 0;
}

.page-contact .base-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 32px;
  align-items: center;
  justify-content: space-between;
}

.page-contact .base-line {
  margin: 0;
  flex: 1 1 22em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .base-stamp {
  margin: 0;
  flex: 0 0 auto;
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 900px) {
  .page-contact .channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    padding-bottom: 64px;
  }

  .page-contact .channels > .channel:nth-child(2) {
    transform: translateY(28px);
  }

  .page-contact .channels > .channel:nth-child(3) {
    transform: translateY(56px);
  }

  .page-contact .check-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .check-side {
    margin-top: 56px;
  }

  .page-contact .node-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
    align-items: center;
  }

  .page-contact .contact-pair {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 56px;
  }

  .page-contact .pair-block--offset {
    margin-top: 28px;
  }

  .page-contact .node-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (max-width: 639px) {
  .page-contact .channel__ghost {
    font-size: 44px;
  }

  .page-contact .contact-hero {
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 4.5vw), 0 100%);
  }

  .page-contact .base-stamp {
    font-size: 12px;
  }
}