.page-contact {
  --pc-cut: 16px;
  --pc-pad: clamp(1.25rem, 3.6vw, 2.25rem);
  --pc-gap: clamp(1rem, 2.6vw, 1.75rem);
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

.page-contact .shell {
  width: 100%;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-intro {
  padding-block: clamp(2.25rem, 6vw, 4rem) clamp(1.75rem, 4vw, 3rem);
}

.page-contact .contact-intro__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-contact .contact-intro__eyebrow {
  display: flex;
  align-items: center;
  gap: .85rem;
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--lime);
}

.page-contact .contact-intro__eyebrow .vertical-note {
  color: var(--muted);
  letter-spacing: .3em;
}

.page-contact .contact-intro h1 {
  margin: 0 0 1.15rem;
  font-size: clamp(2rem, 8.2vw, 3.6rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-contact .contact-intro h1 em {
  font-style: normal;
  color: var(--lime);
  display: block;
}

.page-contact .contact-intro__text {
  max-width: 46ch;
  margin: 0;
  font-size: clamp(1rem, 2.2vw, 1.0625rem);
  line-height: 1.8;
  color: rgba(242, 237, 227, .78);
}

.page-contact .contact-intro__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .contact-fact {
  padding: 1rem 1.05rem;
  background: var(--ink-3);
}

.page-contact .contact-fact__k {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
}

.page-contact .contact-fact__v {
  margin: .4rem 0 0;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--lime);
  overflow-wrap: anywhere;
}

/* ---------- 通道 ---------- */
.page-contact .contact-channels {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.page-contact .channel-figure {
  margin: 0 0 clamp(1.5rem, 4vw, 2.25rem);
}

.page-contact .channel-grid {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .85rem;
  padding: var(--pc-pad);
  background: var(--ink-2);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--pc-cut)), calc(100% - var(--pc-cut)) 100%, 0 100%);
  transition: transform .28s var(--ease), background .28s var(--ease);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--line-strong);
}

.page-contact .channel-card--mail::before { background: var(--blue); }
.page-contact .channel-card--phone::before { background: var(--orange); }
.page-contact .channel-card--dock::before { background: var(--lime); }

.page-contact .channel-card__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--muted);
}

.page-contact .channel-card__title {
  margin: 0;
  font-size: clamp(1.2rem, 3.2vw, 1.45rem);
  font-weight: 800;
  color: var(--paper);
}

.page-contact .channel-card__value {
  margin: 0;
  padding: .55rem .7rem;
  font-family: var(--font-mono);
  font-size: .95rem;
  color: var(--lime);
  background: rgba(198, 255, 61, .08);
  border-left: 2px solid var(--lime);
  overflow-wrap: anywhere;
  user-select: all;
}

.page-contact .channel-card--phone .channel-card__value {
  color: var(--orange);
  background: rgba(255, 91, 35, .09);
  border-left-color: var(--orange);
}

.page-contact .channel-card--mail .channel-card__value {
  color: var(--blue);
  background: rgba(47, 123, 255, .1);
  border-left-color: var(--blue);
}

.page-contact .channel-card__desc {
  margin: 0;
  font-size: .95rem;
  line-height: 1.75;
  color: rgba(242, 237, 227, .74);
}

.page-contact .channel-card__meta {
  margin: auto 0 0;
  padding-top: .85rem;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--muted);
  border-top: 1px dashed var(--line);
}

.page-contact .channel-card__jump {
  align-self: flex-start;
  margin-top: .35rem;
}

/* ---------- 响应节奏 ---------- */
.page-contact .contact-rhythm {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.page-contact .rhythm-layout {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
}

.page-contact .rhythm-clock {
  padding: clamp(1.4rem, 4vw, 2rem);
  background: var(--ink);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-contact .rhythm-clock__time {
  display: flex;
  align-items: baseline;
  gap: .3rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(2.1rem, 9vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--lime);
  line-height: 1;
}

.page-contact .rhythm-clock__dash {
  color: var(--orange);
}

.page-contact .rhythm-clock__unit {
  margin: .9rem 0 0;
  font-size: 13px;
  letter-spacing: .16em;
  color: rgba(242, 237, 227, .6);
}

.page-contact .rhythm-notes {
  display: grid;
  gap: 1rem;
}

.page-contact .rhythm-note {
  padding: 1.15rem 0 0;
  border-top: 2px solid var(--ink);
}

.page-contact .rhythm-note h3 {
  margin: 0 0 .5rem;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--ink-2);
}

.page-contact .rhythm-note p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(26, 31, 28, .78);
}

/* ---------- 运营中心 ---------- */
.page-contact .contact-hub {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.page-contact .hub-grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
}

.page-contact .hub-visual {
  margin: 0;
}

.page-contact .hub-body .section-idx {
  display: block;
  margin-bottom: .75rem;
}

.page-contact .hub-body .section-title {
  margin-bottom: 1rem;
}

.page-contact .hub-lead {
  margin: 0 0 1.5rem;
  max-width: 44ch;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(242, 237, 227, .8);
}

.page-contact .hub-facts {
  display: grid;
  gap: 1px;
  margin: 0 0 1.25rem;
  background: rgba(242, 237, 227, .18);
  border: 1px solid rgba(242, 237, 227, .18);
}

.page-contact .hub-fact {
  padding: .95rem 1.05rem;
  background: rgba(11, 14, 13, .55);
}

.page-contact .hub-fact dt {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--lime);
}

.page-contact .hub-fact dd {
  margin: .4rem 0 0;
  font-size: .98rem;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .hub-note {
  margin: 0;
  padding-left: 1rem;
  font-size: .9rem;
  line-height: 1.8;
  color: rgba(242, 237, 227, .66);
  border-left: 2px solid var(--orange);
}

/* ---------- 准备清单 ---------- */
.page-contact .contact-prep {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.page-contact .prep-list {
  display: grid;
  gap: 0;
  margin: 0 0 1.75rem;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--paper-3);
}

.page-contact .prep-item {
  display: flex;
  align-items: flex-start;
  gap: .9rem;
  padding: 1.05rem .25rem;
  border-bottom: 1px solid var(--paper-3);
}

.page-contact .prep-check {
  position: relative;
  flex: none;
  width: 1.35rem;
  height: 1.35rem;
  margin: .15rem 0 0;
  appearance: none;
  -webkit-appearance: none;
  border: 2px solid rgba(26, 31, 28, .5);
  background: var(--paper-2);
  cursor: pointer;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .prep-check:checked {
  background: var(--lime);
  border-color: var(--ink-2);
}

.page-contact .prep-check:checked::after {
  content: "";
  position: absolute;
  left: .36rem;
  top: .09rem;
  width: .34rem;
  height: .64rem;
  border-right: 2px solid var(--ink-2);
  border-bottom: 2px solid var(--ink-2);
  transform: rotate(42deg);
}

.page-contact .prep-check:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.page-contact .prep-text {
  display: block;
  font-size: .96rem;
  line-height: 1.75;
  color: rgba(26, 31, 28, .72);
  cursor: pointer;
  transition: color .2s var(--ease);
}

.page-contact .prep-text strong {
  display: block;
  margin-bottom: .25rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink-2);
}

.page-contact .prep-check:checked + .prep-text,
.page-contact:checked + .prep-text {
  color: var(--ink-2);
}

.page-contact .prep-check:checked + .prep-text strong {
  font-weight: 900;
  color: var(--ink);
}

.page-contact .prep-tail {
  margin: 0;
  max-width: 58ch;
  font-size: .92rem;
  line-height: 1.85;
  color: rgba(26, 31, 28, .7);
}

.page-contact .prep-tail a {
  color: var(--ink-2);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-underline-offset: 3px;
}

/* ---------- 处理顺序 ---------- */
.page-contact .contact-flow {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.page-contact .contact-flow .tag-row {
  margin-bottom: clamp(1.5rem, 3.5vw, 2.25rem);
}

.page-contact .flow-list {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .flow-item {
  padding: var(--pc-pad);
  background: var(--ink-3);
}

.page-contact .flow-item[hidden] {
  display: none;
}

.page-contact .flow-tag {
  display: inline-block;
  margin: 0 0 .7rem;
  padding: .2rem .6rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--ink);
  background: var(--lime);
}

.page-contact .flow-title {
  margin: 0 0 .9rem;
  font-size: clamp(1.1rem, 3vw, 1.35rem);
  font-weight: 800;
  color: var(--paper);
}

.page-contact .flow-steps {
  margin: 0 0 .9rem;
  padding-left: 1.15rem;
  display: grid;
  gap: .5rem;
}

.page-contact .flow-steps li {
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(242, 237, 227, .74);
}

.page-contact .flow-steps li::marker {
  font-family: var(--font-mono);
  color: var(--blue);
}

.page-contact .flow-steps a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .flow-time {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--orange);
}

/* ---------- 地区支持 ---------- */
.page-contact .contact-region {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.page-contact .region-grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-contact .region-body .section-idx {
  display: block;
  margin-bottom: .75rem;
}

.page-contact .region-body .section-title {
  margin-bottom: 1rem;
}

.page-contact .region-lead {
  margin: 0 0 1.75rem;
  max-width: 48ch;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(242, 237, 227, .8);
}

.page-contact .region-list {
  display: grid;
  gap: 1px;
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
  background: rgba(242, 237, 227, .16);
  border: 1px solid rgba(242, 237, 227, .16);
}

.page-contact .region-list li {
  display: flex;
  align-items: baseline;
  gap: .9rem;
  padding: 1rem 1.05rem;
  background: rgba(11, 14, 13, .5);
}

.page-contact .region-list__num {
  flex: none;
  min-width: 3.4rem;
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 5vw, 1.9rem);
  font-weight: 700;
  color: var(--lime);
  line-height: 1.1;
}

.page-contact .region-list__txt {
  font-size: .95rem;
  line-height: 1.75;
  color: rgba(242, 237, 227, .8);
}

.page-contact .region-note {
  margin: 0;
  padding-left: 1rem;
  font-size: .92rem;
  line-height: 1.8;
  color: rgba(242, 237, 227, .68);
  border-left: 2px solid var(--blue);
}

.page-contact .region-aside {
  padding: clamp(1.25rem, 3.5vw, 1.9rem);
  background: rgba(47, 123, 255, .12);
  border: 1px solid rgba(47, 123, 255, .38);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
  align-self: start;
}

.page-contact .region-aside__label {
  margin: 0 0 .75rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--blue);
}

.page-contact .region-aside__text {
  margin: 0;
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(242, 237, 227, .82);
}

/* ---------- 底部在线通道 ---------- */
.page-contact .contact-dock {
  padding-block: clamp(2.5rem, 6vw, 5rem);
}

.page-contact .dock-panel {
  padding: clamp(1.5rem, 4.5vw, 3rem);
  background: linear-gradient(140deg, rgba(198, 255, 61, .14) 0%, rgba(11, 14, 13, .2) 52%, rgba(47, 123, 255, .12) 100%), var(--ink-2);
  border: 1px solid rgba(198, 255, 61, .34);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-contact .dock-head .section-idx {
  display: block;
  margin-bottom: .7rem;
  color: var(--lime);
}

.page-contact .dock-title {
  margin: 0 0 .9rem;
  font-size: clamp(1.35rem, 4.6vw, 2rem);
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .dock-lead {
  margin: 0 0 1.75rem;
  max-width: 56ch;
  font-size: .98rem;
  line-height: 1.85;
  color: rgba(242, 237, 227, .78);
}

.page-contact .dock-rows {
  display: grid;
  gap: 1px;
  margin: 0 0 1.25rem;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .dock-row {
  display: grid;
  gap: .3rem;
  padding: .95rem 1.05rem;
  background: rgba(11, 14, 13, .68);
}

.page-contact .dock-k {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-contact .dock-v {
  font-size: .98rem;
  line-height: 1.7;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .dock-v--mono {
  font-family: var(--font-mono);
  color: var(--lime);
  user-select: all;
}

.page-contact .dock-note {
  margin: 0;
  font-size: .88rem;
  line-height: 1.8;
  color: rgba(242, 237, 227, .62);
}

.page-contact .dock-note a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-intro__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: end;
  }

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

  .page-contact .channel-card--dock {
    grid-column: 1 / -1;
  }

  .page-contact .rhythm-layout {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-contact .rhythm-notes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
  }

  .page-contact .hub-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }

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

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

  .page-contact .region-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: start;
  }

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

/* ---------- 桌面 ---------- */
@media (min-width: 1040px) {
  .page-contact .contact-intro {
    padding-block: clamp(3.5rem, 7vw, 5.5rem) clamp(2.5rem, 5vw, 3.5rem);
  }

  .page-contact .contact-intro__facts {
    align-self: end;
  }

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

  .page-contact .channel-card--dock {
    grid-column: auto;
  }

  .page-contact .channel-card--mail { margin-top: 0; }
  .page-contact .channel-card--phone { margin-top: 2.75rem; }
  .page-contact .channel-card--dock { margin-top: 1.15rem; }

  .page-contact .channel-card:hover {
    transform: translate(6px, -6px);
    background: #1F2622;
  }

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

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

  .page-contact .dock-row:last-child {
    grid-column: span 3;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .prep-check,
  .page-contact .prep-text {
    transition: none;
  }

  .page-contact .channel-card:hover {
    transform: none;
  }
}
<<<END>>>