/* ===== 合作与联系（page-contact） ===== */

.page-contact {
  background: var(--paper);
  color: var(--ink);
}

.page-contact .crumbs {
  padding-top: clamp(16px, 2.4vw, 24px);
}

/* ---------- 首屏：左右分置 ---------- */

.page-contact .contact-hero {
  padding-top: clamp(20px, 3vw, 36px);
  padding-bottom: clamp(56px, 7vw, 96px);
}

.page-contact .contact-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(36px, 6vw, 60px);
}

.page-contact .contact-col {
  min-width: 0;
}

.page-contact .kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .18em;
  color: var(--ochre);
}

.page-contact .kicker-line {
  display: block;
  width: 34px;
  height: 1px;
  background: var(--ochre);
  flex: none;
}

.page-contact .contact-h1 {
  margin: 0 0 clamp(14px, 2vw, 22px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 4.4vw, 50px);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--ink);
  max-width: 18ch;
}

.page-contact .contact-lead {
  margin: 0;
  font-size: clamp(16px, 1.2vw, 17px);
  line-height: 1.85;
  color: var(--ink);
  max-width: 44ch;
}

/* ---------- 三条联系渠道 ---------- */

.page-contact .channels {
  list-style: none;
  margin: clamp(30px, 4vw, 44px) 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-contact .channel {
  display: grid;
  gap: 6px;
  padding: 20px 0;
  border-bottom: 1px solid var(--rule);
}

.page-contact .channel-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .14em;
  color: var(--note);
}

.page-contact .channel-value {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 25px);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: -.01em;
  color: var(--lake-deep);
  overflow-wrap: anywhere;
}

.page-contact .channel-value--mono {
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: -.015em;
}

.page-contact .channel-use {
  margin: 2px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink);
  max-width: 48ch;
}

.page-contact .channel-time {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 6px 0 0;
  font-size: 13px;
  letter-spacing: .01em;
  color: var(--note);
}

.page-contact .channel-time::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--turq);
  flex: none;
}

/* ---------- 左栏图片 ---------- */

.page-contact .contact-figure {
  margin: clamp(28px, 4vw, 40px) 0 0;
  padding: 8px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: 4px;
  box-shadow: var(--shadow-1);
}

.page-contact .contact-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 2px;
  filter: saturate(.82) contrast(1.02);
}

.page-contact .contact-figure .media-caption {
  margin: 10px 4px 4px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--note);
}

/* ---------- 右栏：来信准备清单 ---------- */

.page-contact .attach {
  padding: clamp(22px, 3.2vw, 34px);
  background: var(--lake-pale);
  border-radius: 4px;
  box-shadow: var(--shadow-1);
}

.page-contact .attach-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--lake-deep);
}

.page-contact .attach-sub {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--lake-deep);
  opacity: .82;
}

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

.page-contact .attach-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid rgba(14, 74, 87, .18);
}

.page-contact .attach-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  line-height: 1;
  color: var(--lake-deep);
  background: rgba(251, 247, 240, .74);
  border: 1px solid rgba(14, 74, 87, .22);
  border-radius: 2px;
  padding: 4px 7px;
  height: fit-content;
  margin-top: 2px;
}

.page-contact .attach-body {
  min-width: 0;
}

.page-contact .attach-name {
  margin: 0 0 5px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--lake-deep);
}

.page-contact .attach-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--lake-deep);
  opacity: .9;
}

.page-contact .attach-tail {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(14, 74, 87, .18);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--lake-deep);
}

/* ---------- 右栏：合作方向 ---------- */

.page-contact .collab {
  margin-top: clamp(34px, 5vw, 54px);
}

.page-contact .collab-head {
  margin-bottom: 16px;
}

.page-contact .collab-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .collab-lead {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--note);
}

.page-contact .collab-item {
  border-top: 1px solid var(--rule);
}

.page-contact .collab-item:last-of-type {
  border-bottom: 1px solid var(--rule);
}

.page-contact .collab-summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
  border-radius: 2px;
}

.page-contact .collab-summary::-webkit-details-marker {
  display: none;
}

.page-contact .collab-summary:focus-visible {
  outline: 2px solid var(--ochre);
  outline-offset: 3px;
}

.page-contact .collab-num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 500;
  line-height: 1;
  color: var(--ochre-pale);
  -webkit-text-stroke: 1px var(--ochre);
  flex: none;
}

.page-contact .collab-name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .collab-arrow {
  margin-left: auto;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--ochre);
  border-bottom: 1.5px solid var(--ochre);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease);
  flex: none;
  margin-bottom: 4px;
}

.page-contact .collab-item[open] .collab-arrow {
  transform: rotate(-135deg);
  margin-bottom: 0;
}

.page-contact .collab-body {
  padding: 0 0 18px 36px;
}

.page-contact .collab-body p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--ink);
}

.page-contact .collab-fit {
  font-size: 13px;
  line-height: 1.7;
  color: var(--note);
}

.page-contact .collab-tail {
  border-top: none;
  padding-top: 0;
  color: var(--note);
}

/* ---------- 回复节奏 ---------- */

.page-contact .rhythm {
  background: var(--paper-2);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.page-contact .rhythm-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 40px);
}

.page-contact .rhythm-head {
  min-width: 0;
}

.page-contact .rhythm-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(23px, 2.8vw, 32px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-contact .rhythm-lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--note);
}

.page-contact .rhythm-list {
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 0;
}

.page-contact .rhythm-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 0;
  border-top: 1px solid var(--rule);
}

.page-contact .rhythm-item:first-child {
  border-top: none;
  padding-top: 0;
}

.page-contact .rhythm-time {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--ochre);
  white-space: nowrap;
}

.page-contact .rhythm-text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--ink);
}

.page-contact .rhythm-tail {
  margin: clamp(26px, 3.4vw, 36px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--note);
}

/* ---------- 收尾：窄幅横图与备案信息 ---------- */

.page-contact .closing {
  padding-top: clamp(52px, 7vw, 88px);
  padding-bottom: clamp(48px, 6vw, 80px);
}

.page-contact .closing-band {
  margin: 0 0 clamp(26px, 4vw, 40px);
  padding: 8px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: 4px;
}

.page-contact .closing-band img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1600 / 420;
  min-height: 130px;
  object-fit: cover;
  border-radius: 2px;
  filter: saturate(.8);
}

.page-contact .closing-band .media-caption {
  margin: 10px 4px 4px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--note);
}

.page-contact .legal-strip {
  display: grid;
  gap: 8px;
  padding-top: clamp(18px, 2.4vw, 24px);
  border-top: 1px solid var(--rule);
}

.page-contact .legal-item {
  margin: 0;
  font-size: 13px;
  letter-spacing: .01em;
  color: var(--note);
}

.page-contact .legal-key {
  display: inline-block;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .16em;
  color: var(--ochre);
}

.page-contact .legal-note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--note);
}

/* ---------- 行内链接 ---------- */

.page-contact .inline-link {
  color: var(--lake);
  text-decoration: none;
  border-bottom: 1px solid var(--ochre-pale);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .inline-link:hover {
  color: var(--ochre);
  border-color: var(--ochre);
}

.page-contact .inline-link:focus-visible {
  outline: 2px solid var(--ochre);
  outline-offset: 2px;
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-contact .legal-strip {
    grid-auto-flow: column;
    justify-content: start;
    gap: 40px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(44px, 5.5vw, 88px);
    align-items: start;
  }

  .page-contact .contact-col--right {
    margin-top: 48px;
  }

  .page-contact .rhythm-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(40px, 6vw, 88px);
    align-items: start;
  }

  .page-contact .rhythm-item {
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
    padding: 18px 0;
  }

  .page-contact .rhythm-item:first-child {
    padding-top: 0;
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-h1 {
    font-size: clamp(44px, 3.6vw, 56px);
  }

  .page-contact .channel-value {
    font-size: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .collab-arrow,
  .page-contact .inline-link {
    transition: none;
  }
}
<<<END>>>