.page-contact {
  --ct-panel: 320px;
  --ct-ink: #F5F1E8;
  --ct-dim: rgba(245, 241, 232, .76);
  --ct-soft: rgba(245, 241, 232, .66);
  --ct-hair: rgba(168, 243, 236, .14);
  --ct-hair-strong: rgba(46, 230, 214, .5);
  position: relative;
  display: block;
  color: var(--ct-ink);
  font-family: var(--yh-font-body);
  background:
    radial-gradient(620px 620px at 100% -4%, rgba(46, 230, 214, .15), transparent 70%),
    radial-gradient(720px 540px at -10% 22%, rgba(59, 42, 99, .48), transparent 72%),
    radial-gradient(540px 440px at 82% 74%, rgba(255, 138, 61, .10), transparent 70%),
    linear-gradient(180deg, #0B1F3A 0%, #060E1C 100%);
}

.page-contact .ct-shell {
  position: relative;
  width: 100%;
  max-width: var(--yh-shell-w);
  margin: 0 auto;
  padding: 28px 18px 72px;
}

@media (min-width: 760px) {
  .page-contact .ct-shell {
    padding: 46px 32px 100px;
  }
}

/* ---------- 布局 ---------- */

.page-contact .ct-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "hero"
    "aside"
    "body";
  gap: 26px;
}

@media (min-width: 1024px) {
  .page-contact .ct-layout {
    grid-template-columns: minmax(0, 1fr) var(--ct-panel);
    grid-template-areas:
      "hero aside"
      "body aside";
    column-gap: 60px;
    row-gap: 34px;
    align-items: start;
  }
}

.page-contact .ct-hero { grid-area: hero; }
.page-contact .ct-aside { grid-area: aside; }

.page-contact .ct-body {
  grid-area: body;
  display: grid;
  gap: 52px;
}

@media (min-width: 1024px) {
  .page-contact .ct-body {
    gap: 70px;
  }
}

/* ---------- 首屏 ---------- */

.page-contact .ct-hero {
  position: relative;
  padding-top: 4px;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  right: 0;
  top: 6px;
  width: 88px;
  height: 44px;
  background-image: repeating-linear-gradient(90deg, rgba(168, 243, 236, .5) 0 1px, transparent 1px 12px);
  opacity: .45;
  pointer-events: none;
}

.page-contact .ct-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  font-family: var(--yh-font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--yh-mist);
}

.page-contact .ct-crumbs a {
  color: var(--yh-glow);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 230, 214, .35);
  padding-bottom: 1px;
}

.page-contact .ct-crumbs a:hover,
.page-contact .ct-crumbs a:focus-visible {
  border-bottom-color: var(--yh-cyan);
}

.page-contact .ct-crumbs [aria-current="page"] {
  color: var(--ct-ink);
}

.page-contact .ct-hero__eyebrow {
  margin: 0 0 10px;
  font-family: var(--yh-font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--yh-lime);
}

.page-contact .ct-hero__eyebrow::before {
  content: "";
  display: inline-block;
  width: 26px;
  height: 2px;
  margin-right: 10px;
  vertical-align: middle;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--yh-cyan), var(--yh-orange));
}

.page-contact .ct-hero__title {
  margin: 0 0 16px;
  font-family: var(--yh-font-head);
  font-size: 34px;
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ct-ink);
}

@media (min-width: 760px) {
  .page-contact .ct-hero__title {
    font-size: 52px;
  }
}

.page-contact .ct-hero__accent {
  color: var(--yh-cyan);
}

@supports (-webkit-background-clip: text) {
  .page-contact .ct-hero__accent {
    background: linear-gradient(96deg, var(--yh-cyan), var(--yh-lime) 56%, var(--yh-orange));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
}

.page-contact .ct-hero__lead {
  max-width: 62ch;
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ct-dim);
}

.page-contact .ct-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-tag {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid rgba(168, 243, 236, .24);
  background: rgba(46, 230, 214, .07);
  font-family: var(--yh-font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--yh-glow);
}

/* ---------- 右侧提示面板 ---------- */

.page-contact .ct-tips {
  position: relative;
  padding: 16px 16px 18px 19px;
  border-radius: var(--yh-radius);
  border: 1px solid rgba(168, 243, 236, .2);
  background: linear-gradient(158deg, rgba(18, 44, 79, .94), rgba(11, 31, 58, .8));
  backdrop-filter: blur(10px);
  overflow: hidden;
}

.page-contact .ct-tips::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--yh-cyan), var(--yh-orange));
}

.page-contact .ct-tips__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}

.page-contact .ct-tips__title {
  margin: 0;
  font-family: var(--yh-font-head);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ct-ink);
}

.page-contact .ct-tips__badge {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--yh-lime);
  border: 1px solid rgba(184, 241, 77, .3);
  border-radius: 999px;
  padding: 3px 9px;
  white-space: nowrap;
}

.page-contact .ct-tips__rows {
  display: grid;
  gap: 9px;
  margin-bottom: 14px;
}

.page-contact .ct-tips__row {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.page-contact .ct-tips__key {
  font-family: var(--yh-font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--yh-cyan);
}

.page-contact .ct-tips__val {
  font-family: var(--yh-font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ct-ink);
  word-break: break-word;
}

.page-contact .ct-tips__send {
  display: block;
  margin: 0 0 8px;
  padding: 10px 12px;
  border-radius: var(--yh-radius-sm);
  border: 1px dashed rgba(46, 230, 214, .34);
  background: rgba(46, 230, 214, .08);
  font-size: 13px;
  line-height: 1.5;
  color: var(--yh-glow);
  word-break: break-all;
  cursor: pointer;
  transition: background .2s var(--yh-ease), border-color .2s var(--yh-ease);
}

.page-contact .ct-tips__send:hover,
.page-contact .ct-tips__send:focus-visible {
  background: rgba(46, 230, 214, .15);
  border-color: var(--ct-hair-strong);
}

.page-contact .ct-tips__hint {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--yh-mist);
}

@media (min-width: 1024px) {
  .page-contact .ct-aside {
    position: sticky;
    top: 92px;
    align-self: start;
  }
}

/* ---------- 章节 ---------- */

.page-contact .ct-section > h2 {
  margin: 0 0 14px;
  font-family: var(--yh-font-head);
  font-size: 24px;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--ct-ink);
}

.page-contact .ct-section > h2::before {
  content: "";
  display: block;
  width: 34px;
  height: 3px;
  margin-bottom: 12px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--yh-cyan), var(--yh-orange));
}

@media (min-width: 760px) {
  .page-contact .ct-section > h2 {
    font-size: 32px;
  }
}

.page-contact .ct-section__lead {
  max-width: 68ch;
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ct-dim);
}

/* ---------- 渠道卡片 ---------- */

.page-contact .ct-channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

@media (min-width: 760px) {
  .page-contact .ct-channels {
    grid-template-columns: 1.1fr 1fr .95fr;
    align-items: start;
  }
}

.page-contact .ct-channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 18px 18px;
  border-radius: var(--yh-radius);
  border: 1px solid var(--ct-hair);
  background: linear-gradient(155deg, rgba(18, 44, 79, .92), rgba(11, 31, 58, .7));
  overflow: hidden;
  transition: transform .28s var(--yh-ease), border-color .28s var(--yh-ease);
}

.page-contact .ct-channel:hover {
  transform: translateY(-4px);
  border-color: var(--ct-hair-strong);
}

.page-contact .ct-channel::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--yh-cyan), transparent 72%);
  opacity: .6;
}

.page-contact .ct-channel--phone::after {
  background: linear-gradient(90deg, var(--yh-orange), transparent 72%);
}

.page-contact .ct-channel--addr::after {
  background: linear-gradient(90deg, var(--yh-lime), transparent 72%);
}

.page-contact .ct-channel__index {
  margin: 0;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--yh-lime);
}

.page-contact .ct-channel__title {
  margin: 0;
  font-family: var(--yh-font-head);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ct-ink);
}

.page-contact .ct-channel__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ct-soft);
}

.page-contact .ct-channel__value {
  margin: 2px 0 0;
  padding: 10px 12px;
  border-radius: var(--yh-radius-sm);
  border: 1px dashed rgba(46, 230, 214, .3);
  background: rgba(46, 230, 214, .07);
  font-size: 15px;
  line-height: 1.5;
  color: var(--yh-glow);
  word-break: break-all;
  cursor: pointer;
  transition: background .2s var(--yh-ease), border-color .2s var(--yh-ease);
}

.page-contact .ct-channel__value:hover,
.page-contact .ct-channel__value:focus-visible {
  background: rgba(46, 230, 214, .14);
  border-color: var(--ct-hair-strong);
}

.page-contact .ct-channel__value--addr {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ct-ink);
}

.page-contact .ct-channel__more {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid rgba(168, 243, 236, .12);
}

.page-contact .ct-channel__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 40px;
  padding: 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--yh-font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--yh-cyan);
}

.page-contact .ct-channel__summary::-webkit-details-marker {
  display: none;
}

.page-contact .ct-channel__summary::after {
  content: "+";
  font-size: 16px;
  line-height: 1;
  transition: transform .24s var(--yh-ease);
}

.page-contact .ct-channel__more[open] .ct-channel__summary::after {
  transform: rotate(45deg);
}

.page-contact .ct-channel__list {
  display: grid;
  gap: 7px;
  margin: 6px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-channel__list li {
  position: relative;
  padding-left: 15px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ct-dim);
}

.page-contact .ct-channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--yh-cyan);
  opacity: .85;
}

.page-contact .ct-channel--phone .ct-channel__list li::before {
  background: var(--yh-orange);
}

/* ---------- 图形 ---------- */

.page-contact .yh-figure {
  margin: 28px 0 0;
}

.page-contact .yh-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--yh-radius-sm);
  object-fit: cover;
}

.page-contact .ct-mailfigure {
  margin-top: 22px;
}

/* ---------- 邮件字段表 ---------- */

.page-contact .ct-fields {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 18px 16px;
  list-style: none;
  border-radius: var(--yh-radius);
  border: 1px solid var(--ct-hair);
  background: linear-gradient(150deg, rgba(18, 44, 79, .78), rgba(6, 14, 28, .6));
}

@media (min-width: 760px) {
  .page-contact .ct-fields {
    padding: 22px 24px;
  }
}

.page-contact .ct-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 5px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(168, 243, 236, .1);
}

.page-contact .ct-field:first-child { padding-top: 0; }
.page-contact .ct-field:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

@media (min-width: 700px) {
  .page-contact .ct-field {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
    padding: 15px 0;
  }
}

.page-contact .ct-field__key {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--yh-lime);
}

@media (min-width: 700px) {
  .page-contact .ct-field__key {
    padding-top: 4px;
  }
}

.page-contact .ct-field__format {
  margin: 0 0 5px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--yh-glow);
  word-break: break-word;
}

.page-contact .ct-field__note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ct-soft);
}

/* ---------- 合作 ---------- */

.page-contact .ct-partner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

@media (min-width: 760px) {
  .page-contact .ct-partner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .ct-partner__card {
  padding: 22px 18px;
  border-radius: var(--yh-radius);
  border: 1px solid rgba(255, 138, 61, .24);
  background: linear-gradient(155deg, rgba(255, 138, 61, .1), rgba(18, 44, 79, .62));
}

.page-contact .ct-partner__card h3 {
  margin: 0 0 14px;
  font-family: var(--yh-font-head);
  font-size: 17px;
  font-weight: 800;
  color: var(--ct-ink);
}

.page-contact .ct-partner__card ul {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-partner__card li {
  position: relative;
  padding-left: 17px;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(245, 241, 232, .8);
}

.page-contact .ct-partner__card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 1px;
  background: var(--yh-orange);
}

.page-contact .ct-partner__foot {
  margin: 18px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ct-soft);
}

.page-contact .ct-inline-mono {
  font-size: .95em;
  color: var(--yh-lime);
  word-break: break-word;
}

/* ---------- 流程 ---------- */

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

.page-contact .ct-flow__item {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 24px;
}

.page-contact .ct-flow__item::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 50px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, rgba(46, 230, 214, .5), rgba(46, 230, 214, .05));
}

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

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

.page-contact .ct-flow__no {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(46, 230, 214, .42);
  background: rgba(46, 230, 214, .08);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--yh-cyan);
}

.page-contact .ct-flow__title {
  margin: 9px 0 6px;
  font-family: var(--yh-font-head);
  font-size: 16.5px;
  font-weight: 800;
  color: var(--ct-ink);
}

.page-contact .ct-flow__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ct-dim);
}

/* ---------- 引导链接 ---------- */

.page-contact .ct-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

@media (min-width: 700px) {
  .page-contact .ct-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .ct-link {
  display: block;
  padding: 18px 16px;
  border-radius: var(--yh-radius-sm);
  border: 1px solid var(--ct-hair);
  background: rgba(18, 44, 79, .55);
  text-decoration: none;
  color: inherit;
  transition: transform .24s var(--yh-ease), border-color .24s var(--yh-ease), background .24s var(--yh-ease);
}

.page-contact .ct-link:hover,
.page-contact .ct-link:focus-visible {
  transform: translateY(-4px);
  border-color: var(--ct-hair-strong);
  background: rgba(46, 230, 214, .08);
}

.page-contact .ct-link__t {
  display: block;
  margin-bottom: 7px;
  font-family: var(--yh-font-head);
  font-size: 15.5px;
  font-weight: 800;
  color: var(--ct-ink);
}

.page-contact .ct-link__d {
  display: block;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ct-soft);
}

/* ---------- 收尾 ---------- */

.page-contact .ct-legal {
  margin: 44px 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(168, 243, 236, .1);
  font-size: 13px;
  line-height: 1.8;
  color: rgba(143, 166, 196, .95);
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-channel,
  .page-contact .ct-link,
  .page-contact .ct-tips__send,
  .page-contact .ct-channel__value {
    transition: none;
  }

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