.page-contact {
  --pc-ink: var(--lm-ink);
  --pc-veil: var(--lm-veil);
  --pc-stroke: rgba(95, 224, 208, 0.32);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  padding-block: clamp(2.4rem, 5vw, 4rem) clamp(3rem, 6vw, 5rem);
  overflow: hidden;
}
.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  inset: -10% -20% auto -20%;
  height: 62%;
  background:
    radial-gradient(58% 78% at 78% 18%, rgba(255, 107, 53, 0.20), transparent 70%),
    radial-gradient(48% 62% at 12% 6%, rgba(0, 168, 150, 0.18), transparent 72%);
  pointer-events: none;
}
.page-contact .pc-hero__shell {
  position: relative;
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: center;
}
.page-contact .pc-hero__title {
  margin: 0.6rem 0 1rem;
  font-size: clamp(2rem, 5.2vw, 3.6rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--lm-cream);
}
.page-contact .pc-mark {
  font-family: var(--lm-mono);
  color: var(--lm-orange);
  font-weight: 700;
  letter-spacing: 0;
}
.page-contact .pc-hero__lead {
  max-width: 46ch;
  color: rgba(244, 241, 234, 0.82);
}
.page-contact .pc-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}
.page-contact .pc-hero__visual {
  position: relative;
  border-radius: calc(var(--lm-r) + 8px);
  overflow: hidden;
  border: 1px solid var(--pc-stroke);
  box-shadow: 0 26px 60px -30px rgba(0, 0, 0, 0.75);
  transform: rotate(-0.9deg);
}
.page-contact .pc-hero__visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 10;
}
.page-contact .pc-hero__visual .lm-media__caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 1.6rem 1.4rem 1.1rem;
  background: linear-gradient(to top, rgba(14, 25, 38, 0.94), rgba(14, 25, 38, 0));
  font-size: 0.86rem;
  color: rgba(244, 241, 234, 0.86);
}
.page-contact .pc-hero__visual .lm-media__tag {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--lm-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lm-teal-soft);
}

/* ---------- 章节标题 ---------- */
.page-contact .pc-channels__head,
.page-contact .pc-types__head,
.page-contact .pc-flow__head {
  display: grid;
  gap: clamp(0.75rem, 2vw, 1.6rem);
  margin-bottom: clamp(1.6rem, 3.5vw, 2.6rem);
  align-items: start;
}
.page-contact .pc-channels__head .lm-chapter,
.page-contact .pc-types__head .lm-chapter,
.page-contact .pc-flow__head .lm-chapter {
  font-size: clamp(1.5rem, 2.8vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--lm-cream);
  margin: 0 0 0.6rem;
}
.page-contact .pc-channels__head .lm-chapter__num,
.page-contact .pc-types__head .lm-chapter__num,
.page-contact .pc-flow__head .lm-chapter__num {
  display: block;
  font-size: clamp(2rem, 4.2vw, 3.1rem);
  color: var(--lm-orange);
  letter-spacing: 0.02em;
  line-height: 1;
}
.page-contact .lm-prose {
  max-width: 62ch;
  color: rgba(244, 241, 234, 0.78);
  font-size: 1rem;
  line-height: 1.75;
}

/* ---------- 联系渠道 ---------- */
.page-contact .pc-channels {
  border-top: 1px solid var(--lm-hair);
}
.page-contact .pc-channels__grid {
  display: grid;
  gap: clamp(1rem, 2.4vw, 1.5rem);
}
.page-contact .pc-channel {
  position: relative;
  padding: clamp(1.4rem, 3vw, 2rem);
  border-radius: var(--lm-r);
  background: linear-gradient(160deg, rgba(14, 25, 38, 0.94), rgba(26, 42, 58, 0.9));
  border: 1px solid var(--lm-hair);
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.page-contact .pc-channel--primary {
  border-color: rgba(255, 107, 53, 0.55);
  box-shadow: 0 0 0 1px rgba(255, 107, 53, 0.18), 0 30px 60px -40px rgba(255, 107, 53, 0.7);
}
.page-contact .pc-channel__icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(255, 107, 53, 0.14);
  color: var(--lm-orange);
}
.page-contact .pc-channel__icon svg {
  width: 26px;
  height: 26px;
}
.page-contact .pc-channel--side .pc-channel__icon {
  background: rgba(0, 168, 150, 0.16);
  color: var(--lm-teal-soft);
}
.page-contact .pc-channel__label {
  margin: 0;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--lm-mist);
}
.page-contact .pc-channel__title {
  margin: 0;
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--lm-cream);
}
.page-contact .pc-channel__value {
  margin: 0.1rem 0 0;
  font-size: clamp(1.15rem, 2.6vw, 1.75rem);
  font-weight: 700;
  color: var(--lm-orange);
  word-break: break-all;
  line-height: 1.35;
}
.page-contact .pc-channel--side .pc-channel__value {
  color: var(--lm-teal-soft);
  font-size: clamp(1.05rem, 2.2vw, 1.4rem);
}
.page-contact .pc-channel__value--addr {
  font-family: var(--lm-font);
  font-weight: 700;
}
.page-contact .pc-channel__desc {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.7;
  color: rgba(244, 241, 234, 0.74);
}
.page-contact .pc-channel__list {
  margin: 0.2rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.4rem;
}
.page-contact .pc-channel__list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 0.9rem;
  color: rgba(244, 241, 234, 0.7);
}
.page-contact .pc-channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lm-orange);
}
.page-contact .pc-copy {
  align-self: flex-start;
  margin-top: 0.35rem;
  font-size: 0.85rem;
}
.page-contact .pc-copy.is-copied {
  border-color: var(--lm-amber);
  color: var(--lm-amber);
}
.page-contact .pc-channels__side {
  display: grid;
  gap: clamp(1rem, 2.4vw, 1.5rem);
}
.page-contact .pc-channel--addr {
  border-color: rgba(143, 163, 184, 0.4);
}

/* ---------- 反馈类型 ---------- */
.page-contact .pc-types {
  position: relative;
}
.page-contact .pc-types::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(143, 163, 184, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 163, 184, 0.1) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.75) 22%, rgba(0, 0, 0, 0.75) 78%, transparent);
  pointer-events: none;
}
.page-contact .pc-types__body {
  position: relative;
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
}
.page-contact .pc-types__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.page-contact .pc-chip {
  font: inherit;
  font-size: 0.9rem;
  padding: 0.62rem 1.15rem;
  border-radius: var(--lm-pill);
  border: 1px solid var(--lm-hair-2);
  background: rgba(14, 25, 38, 0.7);
  color: rgba(244, 241, 234, 0.8);
  cursor: pointer;
  transition: background 220ms var(--lm-ease), color 220ms var(--lm-ease), border-color 220ms var(--lm-ease), transform 220ms var(--lm-ease);
}
.page-contact .pc-chip:hover {
  border-color: var(--lm-teal-soft);
  color: var(--lm-cream);
  transform: translateY(-1px);
}
.page-contact .pc-chip.is-active {
  background: var(--lm-teal);
  border-color: var(--lm-teal);
  color: var(--lm-ink-2);
  font-weight: 700;
}
.page-contact .pc-panel {
  display: none;
  padding: clamp(1.3rem, 3vw, 2rem);
  border-radius: var(--lm-r);
  background: rgba(244, 241, 234, 0.97);
  color: var(--lm-ink);
  border: 1px solid rgba(143, 163, 184, 0.35);
  box-shadow: 0 26px 56px -40px rgba(0, 0, 0, 0.85);
}
.page-contact .pc-panel.is-active {
  display: block;
  animation: pc-fade 300ms var(--lm-ease) both;
}
@keyframes pc-fade {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
.page-contact .pc-panel__title {
  margin: 0 0 0.4rem;
  font-size: 1.24rem;
  font-weight: 800;
  color: var(--lm-ink);
}
.page-contact .pc-panel__lead {
  margin: 0 0 1rem;
  font-size: 0.98rem;
  line-height: 1.7;
  color: rgba(26, 42, 58, 0.78);
}
.page-contact .pc-panel__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.7rem;
}
.page-contact .pc-panel__list li {
  display: grid;
  gap: 0.15rem;
  padding: 0.75rem 0.9rem;
  border-radius: var(--lm-r-sm);
  background: rgba(26, 42, 58, 0.06);
  border-left: 3px solid var(--lm-orange);
  font-size: 0.93rem;
  line-height: 1.6;
  color: rgba(26, 42, 58, 0.86);
}
.page-contact .pc-panel__list .lm-mono {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--lm-teal);
  text-transform: uppercase;
}
.page-contact .pc-panel__link {
  margin: 1rem 0 0;
  font-size: 0.88rem;
  color: rgba(26, 42, 58, 0.7);
}
.page-contact .pc-panel__link a,
.page-contact .pc-club__cta a {
  color: var(--lm-orange);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.page-contact .pc-panel__link a:hover,
.page-contact .pc-club__cta a:hover {
  color: var(--lm-orange-soft);
}

/* ---------- 处理节奏 ---------- */
.page-contact .pc-flow {
  position: relative;
  overflow: hidden;
}
.page-contact .pc-flow__bg {
  position: absolute;
  inset: 0;
  opacity: 0.13;
  pointer-events: none;
}
.page-contact .pc-flow__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.4);
}
.page-contact .pc-flow__inner {
  position: relative;
}
.page-contact .pc-flow__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.page-contact .pc-step {
  position: relative;
  padding: clamp(1.2rem, 2.6vw, 1.75rem);
  border-radius: var(--lm-r);
  background: rgba(14, 25, 38, 0.7);
  border: 1px solid var(--lm-hair);
  transition: border-color 240ms var(--lm-ease), transform 240ms var(--lm-ease);
}
.page-contact .pc-step:hover,
.page-contact .pc-step:focus-visible {
  border-color: rgba(255, 107, 53, 0.6);
  transform: translateY(-3px);
  outline: none;
}
.page-contact .pc-step__num {
  display: inline-block;
  font-size: 1.5rem;
  color: var(--lm-orange);
  letter-spacing: 0.04em;
}
.page-contact .pc-step__title {
  margin: 0.35rem 0 0.5rem;
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--lm-cream);
}
.page-contact .pc-step__text {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.72;
  color: rgba(244, 241, 234, 0.74);
}
.page-contact .pc-step__hover {
  margin: 0.85rem 0 0;
  padding-top: 0.7rem;
  border-top: 1px dashed rgba(143, 163, 184, 0.36);
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--lm-teal-soft);
}
.page-contact .pc-flow__note {
  margin-top: clamp(1.2rem, 2.6vw, 1.8rem);
  padding: 1.1rem 1.3rem;
  border-radius: var(--lm-r-sm);
  border-left: 3px solid var(--lm-teal);
  background: rgba(0, 168, 150, 0.1);
  font-size: 0.95rem;
  line-height: 1.7;
  color: rgba(244, 241, 234, 0.82);
}
.page-contact .pc-flow__note strong {
  color: var(--lm-cream);
}
.page-contact .pc-flow__note a {
  color: var(--lm-teal-soft);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 社团资料 ---------- */
.page-contact .pc-club__shell {
  display: grid;
  gap: clamp(1.4rem, 3vw, 2.4rem);
}
.page-contact .pc-club__copy .lm-chapter__num {
  display: block;
  font-size: clamp(2rem, 4.2vw, 3.1rem);
  color: var(--lm-orange);
  line-height: 1;
  margin-bottom: 0.6rem;
}
.page-contact .pc-club__copy .lm-chapter {
  margin: 0 0 0.8rem;
  font-size: clamp(1.5rem, 2.8vw, 2.2rem);
  font-weight: 800;
  color: var(--lm-cream);
  letter-spacing: -0.015em;
}
.page-contact .pc-club__list {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}
.page-contact .pc-club__list li {
  padding: 0.9rem 1rem;
  border-radius: var(--lm-r-sm);
  background: rgba(26, 42, 58, 0.62);
  border: 1px solid var(--lm-hair);
  font-size: 0.93rem;
  line-height: 1.68;
  color: rgba(244, 241, 234, 0.8);
}
.page-contact .pc-club__k {
  display: block;
  margin-bottom: 0.2rem;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lm-teal-soft);
}
.page-contact .pc-club__cta {
  margin-top: 1.3rem;
  font-size: 0.92rem;
  color: rgba(244, 241, 234, 0.75);
}
.page-contact .pc-club__aside {
  padding: clamp(1.3rem, 3vw, 1.9rem);
  border-radius: var(--lm-r);
  background: var(--lm-cream);
  color: var(--lm-ink);
  align-self: start;
}
.page-contact .pc-club__asideLabel {
  margin: 0 0 1rem;
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: rgba(26, 42, 58, 0.55);
}
.page-contact .pc-club__stats {
  margin: 0;
  display: grid;
  gap: 0.85rem;
}
.page-contact .pc-club__stats > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.8rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px dashed rgba(26, 42, 58, 0.2);
}
.page-contact .pc-club__stats > div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-contact .pc-club__stats dt {
  font-size: 0.85rem;
  color: rgba(26, 42, 58, 0.66);
}
.page-contact .pc-club__stats dd {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--lm-ink);
  text-align: right;
}
.page-contact .pc-club__stats .lm-mono {
  color: var(--lm-orange);
  font-size: 1.1rem;
}
.page-contact .pc-club__asideNote {
  margin: 1.1rem 0 0;
  font-size: 0.85rem;
  line-height: 1.65;
  color: rgba(26, 42, 58, 0.68);
}

/* ---------- 底部信息带 ---------- */
.page-contact .pc-facts {
  border-top: 1px solid var(--lm-hair);
  background: var(--lm-ink-2);
  padding-block: clamp(1.1rem, 2.4vw, 1.6rem);
}
.page-contact .pc-facts__inner {
  display: grid;
  gap: 0.7rem;
}
.page-contact .pc-facts__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.55rem;
  font-size: 0.84rem;
}
.page-contact .pc-facts__k {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lm-mist);
  min-width: 5.4rem;
}
.page-contact .pc-facts__v {
  color: rgba(244, 241, 234, 0.88);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .pc-channels__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
  .page-contact .pc-flow__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.1rem;
  }
  .page-contact .pc-flow__steps .pc-step::after {
    content: "";
    position: absolute;
    top: 50%;
    right: -1.1rem;
    width: 1.1rem;
    border-top: 2px dashed rgba(95, 224, 208, 0.5);
  }
  .page-contact .pc-flow__steps .pc-step:last-child::after {
    display: none;
  }
  .page-contact .pc-facts__inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.6rem 2rem;
  }
}

@media (min-width: 1024px) {
  .page-contact .pc-hero__shell {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(2rem, 4vw, 3.4rem);
  }
  .page-contact .pc-hero__lead {
    font-size: 1.06rem;
  }
  .page-contact .pc-channels__head,
  .page-contact .pc-types__head,
  .page-contact .pc-flow__head {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
    column-gap: 1.6rem;
  }
  .page-contact .pc-types__body {
    grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
    align-items: start;
    gap: 2rem;
  }
  .page-contact .pc-types__tabs {
    flex-direction: column;
    align-items: stretch;
  }
  .page-contact .pc-chip {
    text-align: left;
  }
  .page-contact .pc-panel__list li {
    grid-template-columns: 4.6rem minmax(0, 1fr);
    align-items: baseline;
    gap: 0.9rem;
  }
  .page-contact .pc-club__shell {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 3rem;
    align-items: start;
  }
  .page-contact .pc-club__aside {
    position: sticky;
    top: 7rem;
  }
  .page-contact .pc-facts__inner {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.2rem;
  }
  .page-contact .pc-facts__item {
    display: block;
  }
  .page-contact .pc-facts__k {
    display: block;
    margin-bottom: 0.3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-panel.is-active {
    animation: none;
  }
  .page-contact .pc-step:hover,
  .page-contact .pc-step:focus-visible,
  .page-contact .pc-chip:hover {
    transform: none;
  }
}
</