.page-contact {
  --contact-line: 0.5px solid var(--rule);
  --contact-line-soft: 0.5px solid var(--rule-soft);
  --contact-sec-gap: clamp(72px, 10vw, 120px);
  --contact-inner-gap: clamp(28px, 4vw, 52px);
  display: block;
}

/* ---------- 面包屑与首屏 ---------- */

.page-contact .breadcrumb {
  margin-top: clamp(96px, 14vw, 148px);
}

.page-contact .contact-hero {
  padding-block: clamp(32px, 5vw, 56px) clamp(56px, 8vw, 104px);
}

.page-contact .hero-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--milan);
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-contact .contact-hero h1 {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(38px, 7.6vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 clamp(28px, 4vw, 48px);
  max-width: 15ch;
}

.page-contact .hero-lines {
  max-width: 62ch;
  display: grid;
  gap: 14px;
  border-left: 2px solid var(--ember);
  padding-left: clamp(16px, 2.5vw, 28px);
}

.page-contact .hero-lines p {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .hero-lines p:first-child {
  font-size: 17px;
  color: var(--ink);
}

/* ---------- 区块外壳 ---------- */

.page-contact .contact-sec {
  padding-block: 0 var(--contact-sec-gap);
}

.page-contact .contact-sec.contact-sec--last {
  padding-bottom: clamp(56px, 7vw, 88px);
}

.page-contact .sec-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding-bottom: clamp(18px, 2.5vw, 28px);
  border-bottom: var(--contact-line);
  margin-bottom: clamp(30px, 4vw, 48px);
}

.page-contact .sec-no {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4.4vw, 48px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--milan);
}

.page-contact .sec-title {
  font-family: var(--font-sans);
  font-size: clamp(23px, 3.4vw, 38px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
  max-width: 24ch;
}

.page-contact .lede {
  max-width: 62ch;
  margin: 0 0 clamp(24px, 3vw, 36px);
  font-size: 17px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 01 四条通道 ---------- */

.page-contact .channel-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2vw, 20px);
  grid-template-columns: 1fr;
}

.page-contact .channel {
  border: var(--contact-line);
  border-top: 2px solid var(--ink);
  padding: clamp(20px, 3vw, 28px);
  display: flex;
  flex-direction: column;
  background: var(--paper-bright);
  box-shadow: var(--shadow-1);
  transition: border-color 0.28s var(--ease), box-shadow 0.28s var(--ease), background-color 0.28s var(--ease);
}

.page-contact .channel-no {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--milan);
}

.page-contact .channel-title {
  font-size: clamp(19px, 2.2vw, 23px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--ink);
  margin: 12px 0 10px;
}

.page-contact .channel-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .channel-prep {
  margin-top: 16px;
  padding-top: 14px;
  border-top: var(--contact-line-soft);
}

.page-contact .prep-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ember);
  margin-bottom: 8px;
}

.page-contact .channel-prep ul {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 14px;
  line-height: 1.95;
  color: var(--muted);
}

.page-contact .channel-prep li::before {
  content: "／";
  color: var(--rule);
  margin-right: 6px;
}

/* ---------- 02 客服邮箱 ---------- */

.page-contact .email-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-inner-gap);
  align-items: center;
}

.page-contact .email-copy p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink);
  max-width: 62ch;
}

.page-contact .email-copy p:last-of-type {
  color: var(--muted);
}

.page-contact .mail-line {
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.8vw, 19px);
  color: var(--milan);
  text-decoration: none;
  border-bottom: 1px solid var(--ember);
  overflow-wrap: anywhere;
}

.page-contact .mail-line:hover {
  color: var(--ember);
}

.page-contact .email-copy .btn {
  margin-top: 12px;
}

.page-contact .email-figure {
  margin: 0;
  aspect-ratio: 4 / 3;
  border: var(--contact-line);
  background: var(--panel);
}

/* ---------- 深色联系面板 ---------- */

.page-contact .contact-band {
  background: var(--panel);
  color: var(--paper);
  padding-block: clamp(56px, 8vw, 96px);
  position: relative;
  overflow: hidden;
  margin-bottom: var(--contact-sec-gap);
}

.page-contact .contact-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 10px);
  pointer-events: none;
}

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

.page-contact .reach-heading {
  font-size: clamp(23px, 3.4vw, 38px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0;
}

.page-contact .reach-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.5vw, 44px);
  margin-top: clamp(30px, 4vw, 48px);
}

.page-contact .reach-item {
  border-top: 1px solid rgba(201, 191, 174, 0.32);
  padding-top: 18px;
}

.page-contact .reach-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(244, 239, 230, 0.55);
}

.page-contact .reach-value {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(16px, 2.2vw, 25px);
  letter-spacing: 0.01em;
  color: var(--cyan);
  text-decoration: none;
  overflow-wrap: anywhere;
  transition: color 0.24s var(--ease);
}

.page-contact .reach-value:hover {
  color: var(--paper-bright);
  text-decoration: underline;
  text-decoration-color: var(--cyan);
}

.page-contact .reach-address {
  margin: 10px 0 0;
  font-size: clamp(16px, 1.9vw, 21px);
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--rule);
  overflow-wrap: anywhere;
}

.page-contact .reach-note {
  margin: clamp(28px, 4vw, 42px) 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.9;
  color: rgba(244, 239, 230, 0.62);
}

/* ---------- 03 处理流程 ---------- */

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

.page-contact .flow li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: clamp(12px, 2.5vw, 28px);
  align-items: start;
  padding: clamp(20px, 3vw, 28px) 0;
  border-top: var(--contact-line);
}

.page-contact .flow li:last-child {
  border-bottom: var(--contact-line);
}

.page-contact .flow-no {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--milan);
  padding-top: 3px;
}

.page-contact .flow-body h3 {
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--ink);
  margin: 0 0 8px;
}

.page-contact .flow-body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 62ch;
}

/* ---------- 04 合作方向 ---------- */

.page-contact .collab-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.4vw, 26px);
}

.page-contact .collab-item {
  padding: clamp(20px, 2.6vw, 28px);
  border: var(--contact-line);
  background: var(--paper-bright);
  box-shadow: var(--shadow-1);
  border-left: 3px solid var(--grass);
  transition: border-left-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.page-contact .collab-item h3 {
  margin: 0 0 10px;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--ink);
}

.page-contact .collab-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 05 来信之前 ---------- */

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

.page-contact .prelink li {
  border-bottom: var(--contact-line);
}

.page-contact .prelink a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "title arrow"
    "desc arrow";
  gap: 6px 18px;
  padding: clamp(18px, 2.6vw, 26px) 0;
  text-decoration: none;
  color: inherit;
  transition: padding-left 0.28s var(--ease);
}

.page-contact .prelink-title {
  grid-area: title;
  font-size: clamp(17px, 2.1vw, 21px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--ink);
  transition: color 0.24s var(--ease);
}

.page-contact .prelink-desc {
  grid-area: desc;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 62ch;
}

.page-contact .prelink-arrow {
  grid-area: arrow;
  align-self: center;
  font-family: var(--font-mono);
  font-size: 19px;
  color: var(--rule);
  transition: transform 0.28s var(--ease), color 0.24s var(--ease);
}

.page-contact .prelink a:hover .prelink-title {
  color: var(--milan);
}

.page-contact .prelink a:hover .prelink-arrow {
  color: var(--milan);
  transform: translateX(4px);
}

/* ---------- 页尾通栏插图 ---------- */

.page-contact .contact-outro {
  position: relative;
  margin: 0;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 420px;
  overflow: hidden;
  background: var(--grass);
}

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

.page-contact .contact-outro::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14, 59, 46, 0.32), rgba(20, 16, 14, 0.6));
  pointer-events: none;
}

/* ---------- 桌面与平板 ---------- */

@media (min-width: 640px) {
  .page-contact .reach-address {
    white-space: nowrap;
  }
}

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

  .page-contact .reach-item--wide {
    grid-column: 1 / -1;
  }

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

@media (min-width: 860px) {
  .page-contact .sec-head {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: clamp(20px, 3vw, 36px);
  }

  .page-contact .flow li {
    grid-template-columns: 72px minmax(0, 1fr);
  }

  .page-contact .flow-no {
    font-size: 20px;
  }
}

@media (min-width: 980px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .channel:nth-child(even) {
    margin-top: 34px;
  }

  .page-contact .channel:hover,
  .page-contact .channel:focus-within {
    border-color: var(--milan);
    border-top-color: var(--milan);
    box-shadow: var(--shadow-2);
  }

  .page-contact .channel-prep {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    margin-top: 0;
    padding-top: 0;
    border-top-color: transparent;
    transition: max-height 0.4s var(--ease), opacity 0.3s var(--ease),
      margin-top 0.4s var(--ease), padding-top 0.4s var(--ease), border-top-color 0.3s var(--ease);
  }

  .page-contact .channel:hover .channel-prep,
  .page-contact .channel:focus-within .channel-prep {
    max-height: 220px;
    opacity: 1;
    margin-top: 16px;
    padding-top: 14px;
    border-top-color: var(--rule-soft);
  }

  .page-contact .email-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-contact .prelink a:hover {
    padding-left: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .channel-prep,
  .page-contact .prelink a,
  .page-contact .prelink-title,
  .page-contact .prelink-arrow,
  .page-contact .reach-value,
  .page-contact .collab-item {
    transition: none;
  }

  .page-contact .prelink a:hover .prelink-arrow {
    transform: none;
  }
}
</PAGE_CSS>>>