.page-contact {
  background: var(--ink);
  color: var(--paper);
  padding-bottom: clamp(40px, 8vw, 96px);
}

.page-contact a {
  color: var(--cyan);
  text-decoration: none;
}

.page-contact a:hover {
  text-decoration: underline;
}

.page-contact .pc-link {
  color: var(--cyan);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 1px;
}

.page-contact .pc-link:hover {
  border-bottom-color: var(--cyan);
  text-decoration: none;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: clamp(18px, 3vw, 32px) 0 clamp(32px, 5vw, 64px);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 460px;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.3;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 94%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 94%);
  pointer-events: none;
}

.page-contact .contact-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__head {
  margin-top: clamp(18px, 3vw, 30px);
  max-width: 780px;
}

.page-contact .contact-section__eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .contact-hero h1 {
  margin: 0;
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(32px, 7.2vw, 64px);
  line-height: 1.06;
  letter-spacing: -0.025em;
  color: var(--paper);
}

.page-contact .contact-hero__lead {
  margin: 18px 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(26px, 4vw, 46px);
}

/* 左侧大号通道卡 */

.page-contact .channel-card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line-strong);
  overflow: hidden;
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--amber), var(--cyan) 70%, transparent);
  z-index: 2;
}

.page-contact .channel-card__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  border-bottom: 1px solid var(--line);
  opacity: 0.92;
}

.page-contact .channel-card__body {
  padding: clamp(18px, 3vw, 26px);
}

.page-contact .channel-card__cap {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .channel-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .channel-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .channel-item__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .channel-item__value {
  font-size: clamp(17px, 2.6vw, 22px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--paper);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .channel-item__value--sm {
  font-size: clamp(15px, 2.1vw, 18px);
  font-weight: 700;
  color: var(--muted);
}

.page-contact .pc-copy {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 7px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: transparent;
  color: var(--cyan);
  cursor: pointer;
  transition: border-color 160ms var(--ease), background-color 160ms var(--ease), color 160ms var(--ease);
}

.page-contact .pc-copy:hover {
  border-color: var(--cyan);
  background: rgba(53, 214, 255, 0.1);
}

.page-contact .pc-copy:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-contact .pc-copy[data-copied] {
  border-color: var(--ok);
  color: var(--ok);
}

/* 右侧斜切信息块 */

.page-contact .channel-side {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .side-item {
  padding: 20px 22px;
  background: var(--ink-2);
  border-left: 2px solid var(--line-strong);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
  transition: border-left-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-contact .side-item:hover {
  border-left-color: var(--cyan);
  background: var(--panel);
}

.page-contact .side-item__tag {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-contact .side-item__title {
  margin: 0 0 8px;
  font-size: clamp(16px, 2.2vw, 19px);
  font-weight: 800;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .side-item__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .side-item__link {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- 通用章节 ---------- */

.page-contact .contact-section {
  padding: clamp(40px, 7vw, 86px) 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-section h2 {
  margin: 0;
  font-family: var(--font-cn);
  font-size: clamp(24px, 4.4vw, 42px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .contact-section__lead {
  margin: 16px 0 0;
  max-width: 68ch;
  font-size: clamp(14px, 1.9vw, 16px);
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .contact-section__foot {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 准备清单 ---------- */

.page-contact .prep-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .prep-item {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 12px 18px;
  padding: clamp(16px, 2.6vw, 24px);
  background: var(--ink-2);
}

.page-contact .prep-item__num {
  flex: 0 0 auto;
  width: 32px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--amber);
}

.page-contact .prep-item__body {
  flex: 1 1 260px;
  min-width: 0;
}

.page-contact .prep-item__body h3 {
  margin: 0 0 6px;
  font-size: clamp(16px, 2.1vw, 18px);
  font-weight: 800;
  color: var(--paper);
}

.page-contact .prep-item__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .prep-check {
  flex: 0 0 auto;
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}

.page-contact .prep-check input {
  width: 15px;
  height: 15px;
  accent-color: var(--cyan);
  cursor: pointer;
}

.page-contact .prep-check input:checked + span {
  color: var(--ok);
}

/* ---------- 邮件 vs 电话 ---------- */

.page-contact .compare-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 28px;
}

.page-contact .compare-panel {
  padding: clamp(20px, 3vw, 30px);
  background: var(--ink-2);
  border: 1px solid var(--line);
}

.page-contact .compare-panel--accent {
  background: var(--panel);
  border-color: var(--line-strong);
}

.page-contact .compare-panel h3 {
  margin: 0 0 14px;
  font-size: clamp(17px, 2.3vw, 21px);
  font-weight: 800;
  color: var(--paper);
}

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

.page-contact .compare-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .compare-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}

.page-contact .compare-panel:not(.compare-panel--accent) .compare-list li::before {
  background: var(--amber);
}

.page-contact .compare-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 地址 ---------- */

.page-contact .address-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 26px;
}

.page-contact .address-figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--ink-2);
  border: 1px solid var(--line);
}

.page-contact .address-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.42;
  filter: saturate(0.55);
  transition: opacity 260ms var(--ease), filter 260ms var(--ease);
}

.page-contact .address-figure:hover img,
.page-contact .address-figure:focus-within img {
  opacity: 0.8;
  filter: saturate(1);
}

.page-contact .address-figure__tag {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 10px 16px;
  background: var(--ink);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-contact .address-block {
  border-left: 2px solid var(--amber);
  padding-left: 20px;
}

.page-contact .address-block__value {
  margin: 0 0 14px;
  font-size: clamp(19px, 3vw, 26px);
  font-weight: 800;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .address-block p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .address-block__meta {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* ---------- 商务合作 ---------- */

.page-contact .coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 28px;
}

.page-contact .coop-card {
  padding: clamp(18px, 2.8vw, 26px);
  background: var(--ink-2);
  border: 1px solid var(--line);
  transition: border-color 160ms var(--ease), transform 160ms var(--ease);
}

.page-contact .coop-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.page-contact .coop-card h3 {
  margin: 0 0 10px;
  font-size: clamp(16px, 2.1vw, 19px);
  font-weight: 800;
  color: var(--paper);
}

.page-contact .coop-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .coop-card__ask {
  margin-top: 14px !important;
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
  color: var(--paper) !important;
  font-size: 13px !important;
}

/* ---------- 发送前检查 ---------- */

.page-contact .check-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  max-width: 760px;
}

.page-contact .check-list li {
  position: relative;
  padding-left: 28px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--ok);
}

.page-contact .contact-outro {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: clamp(32px, 5vw, 54px);
  padding: clamp(22px, 3.6vw, 38px);
  background: var(--ink-2);
  border: 1px solid var(--line-strong);
  border-top: 3px solid var(--cyan);
}

.page-contact .contact-outro h3 {
  margin: 0 0 10px;
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 800;
  color: var(--paper);
}

.page-contact .contact-outro p {
  margin: 0;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .contact-outro__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.page-contact .pc-top {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: transparent;
  padding: 9px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-contact .pc-top:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-contact .pc-top:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-contact .channel-item {
    grid-template-columns: 1fr auto;
    align-items: center;
  }

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

  .page-contact .pc-copy {
    justify-self: end;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 1.12fr 0.88fr;
    align-items: start;
    gap: 22px;
  }

  .page-contact .channel-side {
    padding-top: 34px;
  }

  .page-contact .compare-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .page-contact .address-grid {
    grid-template-columns: 1.02fr 0.98fr;
    align-items: center;
    gap: 40px;
  }

  .page-contact .contact-outro {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(3, 1fr);
    align-items: start;
  }

  .page-contact .coop-card:nth-child(2) {
    margin-top: 22px;
  }

  .page-contact .coop-card:nth-child(3) {
    margin-top: 44px;
  }
}
<<<PAGE_CSS_END>>>