.page-contact {
  --contact-cut: 18px;
  --contact-panel: rgba(18, 26, 35, .94);
  background:
    radial-gradient(1200px 520px at 80% -8%, rgba(43, 245, 176, .07), transparent 62%),
    radial-gradient(900px 460px at 4% 16%, rgba(255, 138, 61, .06), transparent 64%),
    var(--ink);
  padding-bottom: clamp(48px, 7vw, 96px);
  overflow-x: hidden;
}

.page-contact .contact-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: clamp(18px, 3vw, 30px);
}

.page-contact .crumbs span[aria-hidden="true"] {
  color: var(--line);
  margin: 0 6px;
}

.page-contact .index-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--deep);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: clamp(20px, 3.4vw, 36px);
}

.page-contact .contact-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.6vw, 40px);
}

.page-contact .contact-hero h1 {
  margin: 0 0 16px;
  font-family: var(--display);
  font-size: clamp(29px, 5.4vw, 54px);
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--paper);
  max-width: 17ch;
}

.page-contact .contact-hero__lead .lead {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
  max-width: 40ch;
}

.page-contact .contact-hero__facts {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-hero__facts li {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

.page-contact .fact-k {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--deep);
  align-self: center;
}

.page-contact .fact-v {
  color: var(--muted);
  line-height: 1.65;
}

.page-contact .contact-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-contact .contact-hero__panel {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  background: linear-gradient(165deg, rgba(18, 26, 35, .97) 0%, rgba(14, 42, 34, .88) 100%);
  border: 1px solid rgba(255, 138, 61, .72);
  clip-path: polygon(0 0, calc(100% - var(--contact-cut)) 0, 100% var(--contact-cut), 100% 100%, var(--contact-cut) 100%, 0 calc(100% - var(--contact-cut)));
  box-shadow: 0 0 0 1px rgba(255, 138, 61, .1), 0 26px 64px -38px rgba(43, 245, 176, .55);
}

.page-contact .contact-hero__panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 72px;
  height: 2px;
  background: var(--orange);
}

.page-contact .contact-hero__lines {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.page-contact .contact-line {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 12px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-line:first-child {
  border-top: none;
}

.page-contact .contact-line__key {
  grid-column: 1 / -1;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--deep);
}

.page-contact .contact-line__val {
  font-family: var(--mono);
  font-size: 15px;
  color: var(--paper);
  word-break: break-all;
  align-self: center;
  text-decoration: underline;
  text-decoration-color: rgba(255, 138, 61, .55);
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}

.page-contact .copy-btn {
  appearance: none;
  align-self: center;
  padding: 5px 11px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  border-color: var(--orange);
  color: var(--orange);
  outline: none;
}

.page-contact .copy-btn[data-copied="true"] {
  border-color: var(--neon);
  color: var(--neon);
}

.page-contact .contact-hero__note {
  margin: 18px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--orange);
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .contact-hero__media {
  margin-top: clamp(24px, 3.8vw, 42px);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: clamp(170px, 25vw, 320px);
  object-fit: cover;
  border: 1px solid var(--line);
  filter: saturate(.78) contrast(1.06) brightness(.88);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

/* ---------- 章节通用 ---------- */
.page-contact .contact-chapter {
  padding: clamp(44px, 7vw, 86px) 0;
}

.page-contact .contact-chapter--moss {
  background: linear-gradient(180deg, rgba(14, 42, 34, .58), rgba(14, 42, 34, .16));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .chapter__num {
  display: block;
  font-family: var(--mono);
  font-size: clamp(26px, 4.6vw, 46px);
  line-height: 1;
  letter-spacing: .04em;
  color: var(--neon);
  opacity: .9;
}

.page-contact .chapter__title {
  margin: 12px 0 10px;
  font-family: var(--display);
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.2;
  color: var(--paper);
  letter-spacing: -.005em;
  max-width: 22ch;
}

.page-contact .chapter__desc {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 01 三个入口 ---------- */
.page-contact .channel-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.2vw, 36px);
  margin-top: clamp(26px, 4vw, 42px);
}

.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .channel-card {
  padding: 18px 18px 20px 22px;
  background: var(--contact-panel);
  border: 1px solid var(--line);
  border-left: 2px solid var(--deep);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-contact .channel-card--amber {
  border-left-color: var(--orange);
}

.page-contact .channel-card__idx {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--deep);
}

.page-contact .channel-card--amber .channel-card__idx {
  color: var(--orange);
}

.page-contact .channel-card__name {
  margin: 8px 0 10px;
  font-family: var(--display);
  font-size: 19px;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-contact .channel-card__val {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 15px;
  color: var(--amber);
  word-break: break-all;
}

.page-contact .channel-card--amber .channel-card__val {
  color: var(--orange);
}

.page-contact .channel-card__desc {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .channel-aside {
  margin: 0;
}

.page-contact .channel-aside img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--line);
  filter: grayscale(.35) contrast(1.06) brightness(.82);
}

.page-contact .channel-aside figcaption {
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: .03em;
  color: var(--muted);
}

/* ---------- 02 通道选择 ---------- */
.page-contact .route-list {
  list-style: none;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .route-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px;
  background: rgba(8, 13, 18, .66);
  border: 1px solid var(--line);
  border-top: 2px solid rgba(43, 245, 176, .5);
}

.page-contact .route-item:has(.tag--price) {
  border-top-color: rgba(255, 138, 61, .7);
}

.page-contact .route-item .tag {
  align-self: flex-start;
}

.page-contact .route-item__q {
  margin: 0;
  font-family: var(--display);
  font-size: 17px;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .route-item__a {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .route-item__link {
  margin-top: auto;
  align-self: flex-start;
  padding-bottom: 2px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 245, 176, .42);
}

.page-contact .route-item__link:hover,
.page-contact .route-item__link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
  outline: none;
}

/* ---------- 03 回复时间 ---------- */
.page-contact .resp-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(24px, 3.8vw, 38px);
}

.page-contact .resp-grid .stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 2px solid var(--neon);
}

.page-contact .resp-grid .stat--amber {
  border-top-color: var(--orange);
}

.page-contact .resp-grid .stat__num {
  font-family: var(--mono);
  font-size: clamp(32px, 5.4vw, 46px);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--neon);
}

.page-contact .resp-grid .stat--amber .stat__num {
  color: var(--orange);
}

.page-contact .resp-grid .stat__label {
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

.page-contact .resp-note {
  margin: 18px 0 0;
  padding: 18px 20px;
  background: rgba(18, 26, 35, .74);
  border-left: 2px solid var(--deep);
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 04 合作与投稿 ---------- */
.page-contact .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(24px, 3.8vw, 38px);
}

.page-contact .partner-card {
  padding: 20px;
  background: linear-gradient(180deg, rgba(18, 26, 35, .92), rgba(8, 13, 18, .9));
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-contact .partner-card__name {
  margin: 0 0 10px;
  font-family: var(--display);
  font-size: 17px;
  letter-spacing: .02em;
  color: var(--neon);
}

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

.page-contact .partner-mail {
  margin-top: 20px;
  padding: clamp(20px, 3vw, 28px);
  background: rgba(8, 13, 18, .62);
  border: 1px dashed rgba(43, 245, 176, .42);
}

.page-contact .partner-checklist {
  list-style: none;
  margin: 14px 0 22px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 9px;
}

.page-contact .partner-checklist li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .partner-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 9px;
  height: 1px;
  background: var(--neon);
}

/* ---------- 05 自助入口 ---------- */
.page-contact .selfserve-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(24px, 3.8vw, 38px);
}

.page-contact .selfserve-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .selfserve-card:hover,
.page-contact .selfserve-card:focus-visible {
  border-color: var(--neon);
  transform: translateY(-2px);
  outline: none;
}

.page-contact .selfserve-card__idx {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--deep);
}

.page-contact .selfserve-card__title {
  margin: 0;
  font-family: var(--display);
  font-size: 17px;
  line-height: 1.38;
  color: var(--paper);
}

.page-contact .selfserve-card__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .selfserve-card__go {
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--orange);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .resp-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 820px) {
  .page-contact .route-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 940px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-contact .channel-layout {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, .82fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .selfserve-card,
  .page-contact .copy-btn {
    transition: none;
  }

  .page-contact .selfserve-card:hover,
  .page-contact .selfserve-card:focus-visible {
    transform: none;
  }
}