.page-contact {
  background: var(--ink-800);
  color: var(--paper);
}

.page-contact img { max-width: 100%; }

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: 40px 0 48px;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(90deg, var(--line-faint) 0 1px, transparent 1px 96px);
  opacity: .5;
}

.page-contact .contact-hero-bg {
  position: absolute;
  inset: 0;
}

.page-contact .contact-hero-bg img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 40%;
  opacity: .22;
  filter: saturate(.65) contrast(1.06);
}

.page-contact .contact-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(176deg, rgba(6, 17, 13, .42) 0%, rgba(11, 31, 26, .88) 58%, var(--ink-800) 100%);
}

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

.page-contact .contact-hero h1 {
  margin: 16px 0 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(42px, 9.4vw, 92px);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-contact .hero-claim {
  max-width: 42ch;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mute);
}

/* ---------- 联系方式标签 ---------- */
.page-contact .contact-tags {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-contact .contact-tag {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 18px 20px;
  background: var(--panel-900);
  border-top: 2px solid var(--line-600);
}

.page-contact .contact-tag:nth-child(1) { border-top-color: var(--orange); }
.page-contact .contact-tag:nth-child(2) { border-top-color: var(--cyan); }

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

.page-contact .tag-v {
  font-size: 16px;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .tag-d {
  font-size: 13px;
  line-height: 1.8;
  color: var(--mute);
}

/* ---------- 页面索引条 ---------- */
.page-contact .contact-index {
  margin: 24px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-faint);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.page-contact .contact-index a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mute);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .contact-index a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 章节骨架 ---------- */
.page-contact .section {
  padding: 54px 0;
  border-top: 1px solid var(--line-faint);
}

.page-contact .section:first-of-type { border-top: 0; }

.page-contact .section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 22px;
}

.page-contact .section-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-contact .section-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 4.4vw, 36px);
  line-height: 1.25;
  color: var(--paper);
}

.page-contact .prose p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--paper);
  opacity: .84;
}

.page-contact .prose p:last-child { margin-bottom: 0; }

.page-contact .mail-copy { max-width: 64ch; }

.page-contact .split {
  display: grid;
  gap: 26px;
  align-items: start;
}

/* ---------- 电话面板 ---------- */
.page-contact .phone-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  background: var(--panel-900);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--cyan);
}

.page-contact .phone-num {
  font-size: clamp(24px, 6vw, 34px);
  line-height: 1.2;
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-contact .phone-note {
  font-size: 13px;
  line-height: 1.8;
  color: var(--mute);
}

/* ---------- 通信地址 ---------- */
.page-contact .address-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--orange);
}

.page-contact .address-line {
  margin: 0;
  font-size: 17px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .address-note {
  margin: 0;
  max-width: 60ch;
  font-size: 13px;
  line-height: 1.85;
  color: var(--mute);
}

/* ---------- 来信要点 ---------- */
.page-contact .mail-points {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .mail-points li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 10px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-faint);
}

.page-contact .mail-points li:first-child {
  border-top: 1px solid var(--line-faint);
}

.page-contact .point-idx {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-contact .mail-points h3 {
  margin: 0 0 6px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .mail-points p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mute);
}

.page-contact .write-figure {
  margin: 0;
  padding: 12px;
  background: var(--panel-900);
  border: 1px solid var(--line-soft);
}

.page-contact .write-figure .media-4x3 {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--panel-700);
}

.page-contact .write-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: .9;
}

.page-contact .write-figure .media-cap {
  display: block;
  padding-top: 10px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mute);
}

/* ---------- 合作与纠错 ---------- */
.page-contact .coop-grid {
  display: grid;
  gap: 16px;
}

.page-contact .coop-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  background: var(--panel-900);
  border: 1px solid var(--line-soft);
}

.page-contact .coop-fix { border-top: 2px solid var(--orange); }
.page-contact .coop-partner { border-top: 2px solid var(--cyan); }

.page-contact .coop-card h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 20px;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .coop-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mute);
}

.page-contact .coop-card .btn {
  align-self: flex-start;
  margin-top: 6px;
}

/* ---------- 备案信息 ---------- */
.page-contact .record-box {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  background: var(--panel-900);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--orange);
}

.page-contact .record-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  margin: 0;
}

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

.page-contact .record-v {
  font-size: 18px;
  letter-spacing: .02em;
  color: var(--orange);
  overflow-wrap: anywhere;
}

.page-contact .record-note {
  margin: 0;
  max-width: 66ch;
  font-size: 13px;
  line-height: 1.85;
  color: var(--mute);
}

/* ---------- 底部快捷入口 ---------- */
.page-contact .contact-next .section-title {
  font-size: clamp(20px, 3.6vw, 28px);
}

.page-contact .next-lede {
  margin: 10px 0 18px;
  max-width: 50ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mute);
}

.page-contact .contact-strip {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-contact .contact-strip .strip-item {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding: 10px 16px;
  background: var(--panel-900);
  border: 1px solid var(--line-soft);
  color: var(--paper);
  font-size: 13px;
  letter-spacing: .04em;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .contact-strip .strip-item:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ---------- 中屏 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-hero { padding: 62px 0 68px; }

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

  .page-contact .split {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 34px;
  }

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

  .page-contact .mail-points li { grid-template-columns: 52px minmax(0, 1fr); }
}

/* ---------- 宽屏 ---------- */
@media (min-width: 1080px) {
  .page-contact .contact-hero { padding: 86px 0 92px; }

  .page-contact .section { padding: 82px 0; }

  .page-contact .write-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 48px;
  }

  .page-contact .mail-points li { padding: 18px 0; }
}