.page-contact {
  --pc-pad: clamp(1.25rem, 4vw, 2.75rem);
  --pc-gap: clamp(1.25rem, 3vw, 2rem);
  max-width: var(--ls-maxw);
  padding-inline: var(--pc-pad);
  margin-inline: auto;
  padding-bottom: clamp(3rem, 8vw, 6rem);
  color: var(--ls-cream);
}

/* ---------- 面包屑 ---------- */
.page-contact .contact-crumb {
  padding-block: 1.5rem .5rem;
}

.page-contact .contact-crumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--ls-slate);
}

.page-contact .contact-crumb li + li::before {
  content: "/";
  margin-right: .4rem;
  color: var(--ls-line-strong);
}

.page-contact .contact-crumb a {
  color: var(--ls-slate);
  text-decoration: none;
  transition: color var(--ls-dur) var(--ls-ease);
}

.page-contact .contact-crumb a:hover,
.page-contact .contact-crumb a:focus-visible {
  color: var(--ls-cyan);
}

.page-contact .contact-crumb [aria-current="page"] {
  color: var(--ls-cream);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: var(--pc-gap);
  padding-block: clamp(1rem, 3vw, 2rem) clamp(2rem, 5vw, 3.25rem);
  border-bottom: 1px solid var(--ls-line);
  position: relative;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: clamp(4rem, 18%, 12rem);
  height: 2px;
  background: linear-gradient(90deg, var(--ls-cyan), transparent);
}

.page-contact .contact-hero__text {
  max-width: 48rem;
}

.page-contact .contact-hero h1 {
  font-size: clamp(34px, 6vw, 66px);
  line-height: 1.05;
  letter-spacing: -.02em;
  margin: .7rem 0 1rem;
  color: var(--ls-cream);
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.75;
  color: var(--ls-slate);
}

.page-contact .contact-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.5rem;
}

.page-contact .contact-hero__figure {
  margin: 0;
}

/* ---------- 图片容器通用 ---------- */
.page-contact .ls-figure {
  margin: 0;
}

.page-contact .ls-figure__frame {
  border-radius: var(--ls-r-lg);
  overflow: hidden;
  background: linear-gradient(135deg, var(--ls-track), var(--ls-void) 70%);
  border: 1px solid var(--ls-line);
}

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

/* ---------- 三条通道 ---------- */
.page-contact .contact-channels h2,
.page-contact .contact-screen h2,
.page-contact .contact-direct h2,
.page-contact .contact-timing h2,
.page-contact .contact-more h2 {
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--ls-cream);
  margin: 0;
}

.page-contact .contact-channels__sub {
  margin: .85rem 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ls-slate);
}

.page-contact .channels {
  display: flex;
  flex-direction: column;
  gap: var(--pc-gap);
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-contact .channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .7rem;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border-radius: var(--ls-r-lg);
  background: var(--ls-track);
  border: 1px solid var(--ls-line);
  transition: border-color var(--ls-dur) var(--ls-ease), transform var(--ls-dur) var(--ls-ease);
}

.page-contact .channel--screen {
  background: linear-gradient(155deg, rgba(53, 230, 218, .12), var(--ls-track) 58%);
  border-color: rgba(53, 230, 218, .4);
}

.page-contact .channel--screen::before {
  content: "";
  position: absolute;
  inset: -1px auto auto -1px;
  width: 3px;
  height: 42%;
  border-radius: var(--ls-pill);
  background: var(--ls-cyan);
  box-shadow: 0 0 18px rgba(53, 230, 218, .55);
}

.page-contact .channel:focus-within {
  border-color: rgba(53, 230, 218, .6);
  transform: translateY(-3px);
}

.page-contact .channel__pointer {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  align-self: flex-start;
  margin: 0;
  font-family: var(--ls-font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ls-cyan);
}

.page-contact .channel__pointer::before {
  content: "";
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-bottom: 6px solid var(--ls-cyan);
  filter: drop-shadow(0 0 6px rgba(53, 230, 218, .8));
}

.page-contact .channel h3,
.page-contact .contact-screen__panel h3,
.page-contact .timing-item__body h3,
.page-contact .more-card h3 {
  margin: 0;
  font-size: clamp(19px, 2.1vw, 23px);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--ls-cream);
}

.page-contact .channel__desc {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ls-slate);
}

.page-contact .channel__more {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  margin-top: 0;
  transition: max-height .24s var(--ls-ease), opacity .24s var(--ls-ease), margin-top .24s var(--ls-ease);
}

.page-contact .channel:hover .channel__more,
.page-contact .channel:focus-within .channel__more {
  max-height: 32rem;
  opacity: 1;
  margin-top: .35rem;
}

.page-contact .channel__more-title {
  margin: 0 0 .55rem;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--ls-slate);
}

.page-contact .channel__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .45rem;
}

.page-contact .channel__list li {
  position: relative;
  padding-left: 1.05rem;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--ls-slate);
}

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

.page-contact .channel__list--volt li::before { background: var(--ls-cyan); }
.page-contact .channel__list--moss li::before { background: var(--ls-moss); }
.page-contact .channel__list--clay li::before { background: var(--ls-clay); }

.page-contact .channel__cta {
  align-self: flex-start;
  margin-top: auto;
  padding-top: .5rem;
}

/* ---------- 大屏端反馈 ---------- */
.page-contact .contact-screen {
  display: grid;
  gap: var(--pc-gap);
  align-items: start;
}

.page-contact .contact-screen__body > p:not(.ls-eyebrow) {
  margin: .85rem 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ls-slate);
}

.page-contact .contact-screen__grid {
  margin-top: 1.5rem;
}

.page-contact .contact-screen__panel {
  padding: 1.15rem 1.25rem;
  border-radius: var(--ls-r-md);
  background: var(--ls-track);
  border: 1px solid var(--ls-line);
}

.page-contact .contact-screen__panel h3 {
  font-size: 17px;
  margin-bottom: .7rem;
  letter-spacing: .01em;
}

.page-contact .contact-screen__tip {
  margin: 1.15rem 0 0;
  padding-left: .95rem;
  border-left: 2px solid var(--ls-volt);
  font-size: 15px;
  line-height: 1.7;
  color: var(--ls-cream);
}

.page-contact .contact-screen__figure {
  margin: 0;
}

/* ---------- 联系清单 ---------- */
.page-contact .contact-list {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ls-line);
}

.page-contact .contact-list__row {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  gap: 1rem;
  align-items: baseline;
  padding: .95rem .3rem;
  border-bottom: 1px solid var(--ls-line);
  transition: background var(--ls-dur) var(--ls-ease);
}

.page-contact .contact-list__row:hover {
  background: linear-gradient(90deg, rgba(53, 230, 218, .09), transparent 72%);
}

.page-contact .contact-list__key {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--ls-slate);
}

.page-contact .contact-list__val {
  font-size: 16px;
  line-height: 1.6;
  color: var(--ls-cream);
  word-break: break-word;
}

.page-contact .contact-direct__note {
  margin: 1.35rem 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ls-slate);
}

.page-contact .contact-direct__note a {
  color: var(--ls-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 218, .4);
  transition: border-color var(--ls-dur) var(--ls-ease);
}

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

/* ---------- 回复节奏 ---------- */
.page-contact .timing-list {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .9rem;
}

.page-contact .timing-item {
  display: grid;
  grid-template-columns: 2.85rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.15rem 1.2rem;
  border-radius: var(--ls-r-md);
  background: var(--ls-track);
  border: 1px solid var(--ls-line);
  border-left: 3px solid var(--ls-slate);
}

.page-contact .timing-item:nth-child(1) { border-left-color: var(--ls-cyan); }
.page-contact .timing-item:nth-child(2) { border-left-color: var(--ls-moss); }
.page-contact .timing-item:nth-child(3) { border-left-color: var(--ls-clay); }

.page-contact .timing-item__idx {
  font-size: 20px;
  line-height: 1.2;
  color: var(--ls-slate);
}

.page-contact .timing-item:nth-child(1) .timing-item__idx { color: var(--ls-cyan); }
.page-contact .timing-item:nth-child(2) .timing-item__idx { color: var(--ls-moss); }
.page-contact .timing-item:nth-child(3) .timing-item__idx { color: var(--ls-clay); }

.page-contact .timing-item__body p {
  margin: .5rem 0 0;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--ls-slate);
}

/* ---------- 延伸入口 ---------- */
.page-contact .more-grid {
  margin-top: 1.5rem;
}

.page-contact .more-card {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  padding: 1.3rem 1.25rem;
  border-radius: var(--ls-r-md);
  background: var(--ls-track);
  border: 1px solid var(--ls-line);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--ls-dur) var(--ls-ease), transform var(--ls-dur) var(--ls-ease);
}

.page-contact .more-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ls-slate);
}

.page-contact .more-card__go {
  margin-top: auto;
  padding-top: .5rem;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--ls-cyan);
}

.page-contact .more-card:hover,
.page-contact .more-card:focus-visible {
  border-color: rgba(53, 230, 218, .55);
  transform: translateY(-3px);
}

/* ---------- 焦点可见 ---------- */
.page-contact a:focus-visible,
.page-contact .channel:focus-within {
  outline: 2px solid var(--ls-cyan);
  outline-offset: 2px;
}

/* ---------- 平板起 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-list__row {
    grid-template-columns: 8rem minmax(0, 1fr);
  }
}

/* ---------- 桌面错位通道 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
  }

  .page-contact .channels {
    flex-direction: row;
    align-items: flex-start;
  }

  .page-contact .channel--screen {
    flex: 1 1 42%;
    align-self: stretch;
  }

  .page-contact .channel--general {
    flex: 1 1 32%;
    margin-top: clamp(2.5rem, 6vw, 4.75rem);
  }

  .page-contact .channel--partner {
    flex: 1 1 24%;
    margin-top: clamp(1rem, 2.4vw, 2rem);
  }

  .page-contact .contact-screen {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: clamp(1.75rem, 4vw, 3rem);
  }

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

  .page-contact .timing-item {
    grid-template-columns: minmax(0, 1fr);
    gap: .35rem;
  }
}

/* ---------- 触屏与减少动效 ---------- */
@media (hover: none) {
  .page-contact .channel__more {
    max-height: none;
    opacity: 1;
    margin-top: .35rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }
}