/* ================= 联系我们 ================= */
.page-contact {
  --c-y: clamp(56px, 8vw, 104px);
  --c-ink-soft: #4C5B66;
  background: var(--ink);
  color: var(--paper);
}

.page-contact .c-section {
  padding: var(--c-y) 0;
}

.page-contact .c-section--ink { background: var(--ink-deep); }
.page-contact .c-section--paper { background: var(--paper); color: var(--ink-on-paper); }
.page-contact .c-section--panel { background: var(--panel); color: var(--paper); }

/* ---------- 首屏 ---------- */
.page-contact .c-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-top: calc(var(--bar-h) + clamp(40px, 7vw, 88px));
  padding-bottom: clamp(40px, 6vw, 76px);
  background:
    radial-gradient(120% 90% at 10% 0%, rgba(53, 208, 214, 0.10), transparent 58%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
}

.page-contact .c-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 76px 76px;
  pointer-events: none;
}

.page-contact .c-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .c-crumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

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

.page-contact .c-crumb__sep { color: rgba(154, 167, 176, 0.45); }

.page-contact .c-hero__title {
  margin: clamp(20px, 3vw, 34px) 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(40px, 9vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.025em;
  color: var(--paper);
}

.page-contact .c-hero__title-em { color: var(--orange); }

.page-contact .c-hero__lede {
  margin: clamp(20px, 3vw, 28px) 0 0;
  max-width: 66ch;
  font-family: var(--font-body);
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .c-hero__quick {
  list-style: none;
  margin: clamp(30px, 4vw, 48px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-contact .c-hero__quick li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 18px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .c-hero__quick-k {
  min-width: 74px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sand);
}

.page-contact .c-hero__quick-v {
  font-size: 15px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 章节标题 ---------- */
.page-contact .c-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px 32px;
  padding-bottom: clamp(14px, 2vw, 20px);
  margin-bottom: clamp(26px, 3.5vw, 44px);
  border-bottom: 1px solid var(--line);
}

.page-contact .c-head__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.page-contact .c-head__note {
  margin: 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .c-section--paper .c-head { border-bottom-color: rgba(27, 39, 51, 0.18); }
.page-contact .c-section--paper .c-head__note { color: var(--c-ink-soft); }

/* ---------- 三条渠道 ---------- */
.page-contact .c-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 1.8vw, 22px);
}

.page-contact .c-channel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(22px, 2.6vw, 34px);
  border: 1px solid var(--line);
  border-top: 2px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(44, 58, 69, 0.42), rgba(7, 18, 29, 0.62));
  transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}

.page-contact .c-channel:hover {
  transform: translateY(-1px);
  border-color: var(--cyan);
  background: linear-gradient(180deg, rgba(44, 58, 69, 0.62), rgba(7, 18, 29, 0.78));
}

.page-contact .c-channel__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--sand);
}

.page-contact .c-channel__name {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .c-channel__scene {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .c-channel__list {
  list-style: none;
  margin: 0;
  padding: 14px 0 0;
  display: grid;
  gap: 9px;
  border-top: 1px solid var(--line-soft);
}

.page-contact .c-channel__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .c-channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .c-channel__foot {
  margin: auto 0 0;
  padding-top: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .c-channel__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--moss);
}

.page-contact .c-channel__link {
  align-self: flex-start;
  font-size: 13px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 208, 214, 0.4);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact .c-channel__link:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 工单字段 ---------- */
.page-contact .c-fields {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: rgba(27, 39, 51, 0.16);
  border: 1px solid rgba(27, 39, 51, 0.16);
}

.page-contact .c-field {
  display: grid;
  align-content: start;
  gap: 8px;
  padding: clamp(20px, 2.4vw, 30px);
  background: var(--paper);
}

.page-contact .c-field__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--clay);
}

.page-contact .c-field__label {
  margin: 0;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink-on-paper);
}

.page-contact .c-field__hint {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-ink-soft);
}

.page-contact .c-field__hint a {
  color: var(--clay);
  text-decoration: none;
  border-bottom: 1px solid rgba(180, 89, 58, 0.45);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact .c-field__hint a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-contact .c-fields__note {
  margin: clamp(20px, 2.4vw, 28px) 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-ink-soft);
}

.page-contact .c-fields__note a {
  color: var(--clay);
  text-decoration: none;
  border-bottom: 1px solid rgba(180, 89, 58, 0.45);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact .c-fields__note a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 邮箱与电话 ---------- */
.page-contact .c-lines {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  border-top: 1px solid var(--line);
}

.page-contact .c-line {
  display: grid;
  gap: 8px;
  padding: clamp(22px, 2.6vw, 32px) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .c-line__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--sand);
}

.page-contact .c-line__val {
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.2vw, 27px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .c-line__note {
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 地址 ---------- */
.page-contact .c-place {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-contact .c-place__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--clay);
}

.page-contact .c-place__addr {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.4vw, 28px);
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--ink-on-paper);
}

.page-contact .c-place__note {
  margin: 18px 0 0;
  max-width: 44ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--c-ink-soft);
}

/* ---------- 图片 ---------- */
.page-contact .c-figure { margin: 0; }

.page-contact .c-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(27, 39, 51, 0.16);
}

.page-contact .c-figure__cap {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-ink-soft);
}

.page-contact .c-section--ink .c-figure img,
.page-contact .c-section--panel .c-figure img { border-color: var(--line); }

.page-contact .c-section--ink .c-figure__cap,
.page-contact .c-section--panel .c-figure__cap { color: var(--mist); }

/* ---------- 合作与媒体 ---------- */
.page-contact .c-partners {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 1.8vw, 22px);
}

.page-contact .c-partner {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: clamp(20px, 2.4vw, 30px);
  border: 1px solid var(--line);
  border-left: 2px solid var(--clay);
  background: rgba(44, 58, 69, 0.28);
  transition: border-color 0.22s ease, background 0.22s ease;
}

.page-contact .c-partner:hover {
  border-color: var(--cyan);
  border-left-color: var(--orange);
  background: rgba(44, 58, 69, 0.52);
}

.page-contact .c-partner__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--sand);
}

.page-contact .c-partner__name {
  margin: 0;
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .c-partner__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .c-partners__foot {
  margin: clamp(22px, 3vw, 32px) 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .c-partners__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 208, 214, 0.4);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact .c-partners__foot a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 服务区域与回复节奏 ---------- */
.page-contact .c-cadence {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-contact .c-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(18px, 2.4vw, 28px);
}

.page-contact .c-stat {
  display: grid;
  gap: 6px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-contact .c-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--orange);
}

.page-contact .c-stat__unit {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .c-stat__note {
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ================= 响应式 ================= */
@media (min-width: 620px) {
  .page-contact .c-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 780px) {
  .page-contact .c-fields { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-contact .c-field:last-child { grid-column: 1 / -1; }
}

@media (min-width: 800px) {
  .page-contact .c-partners { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 820px) {
  .page-contact .c-line {
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 10px 36px;
    align-items: baseline;
  }
  .page-contact .c-line__note { grid-column: 2; }
}

@media (min-width: 880px) {
  .page-contact .c-channels { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 900px) {
  .page-contact .c-hero__quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-bottom: 1px solid var(--line);
  }
  .page-contact .c-hero__quick li {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 20px 26px;
    border-bottom: 0;
  }
  .page-contact .c-hero__quick li:first-child { padding-left: 0; }
  .page-contact .c-hero__quick li + li { border-left: 1px solid var(--line-soft); }

  .page-contact .c-place { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
  .page-contact .c-cadence { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .c-channel,
  .page-contact .c-partner,
  .page-contact .c-channel__link,
  .page-contact .c-partners__foot a,
  .page-contact .c-field__hint a,
  .page-contact .c-fields__note a,
  .page-contact .c-crumb a {
    transition: none;
  }
  .page-contact .c-channel:hover { transform: none; }
}