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

/* ===== 首屏 ===== */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: 18px 0 44px;
}

.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .contact-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
  filter: saturate(0.75) contrast(1.05);
}

.page-contact .contact-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(188deg, rgba(10, 42, 33, 0.76) 0%, rgba(10, 42, 33, 0.94) 58%, var(--ink) 100%);
}

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

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.5rem, 11vw, 5.25rem);
  line-height: 0.9;
  letter-spacing: -0.02em;
  margin: 10px 0 0;
}

.page-contact .contact-hero__lead {
  max-width: 40ch;
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--paper);
  opacity: 0.86;
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 26px;
  margin-top: 34px;
}

.page-contact .contact-lines {
  display: grid;
  gap: 0;
  min-width: 0;
}

.page-contact .contact-line {
  display: block;
  position: relative;
  padding: 16px 0 18px;
  border-top: 1px solid var(--line-strong);
  color: inherit;
  text-decoration: none;
  transition: color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-contact .contact-line:last-child {
  border-bottom: 1px solid var(--line-strong);
}

.page-contact .contact-line__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--orange-soft);
}

.page-contact .contact-line__value {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.02rem, 4.6vw, 1.8rem);
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.page-contact .contact-line__hint {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--sage);
}

.page-contact a.contact-line:hover,
.page-contact a.contact-line:focus-visible {
  color: var(--orange);
  transform: translateX(2px);
}

.page-contact a.contact-line:hover .contact-line__hint {
  color: var(--cyan);
}

.page-contact .contact-hero__aside {
  display: none;
}

.page-contact .contact-hero__vert {
  display: block;
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.32em;
  color: var(--orange-soft);
}

.page-contact .contact-hero__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--sage);
}

/* ===== 联系渠道 ===== */
.page-contact .contact-channels {
  background: var(--ink-2);
  padding: 42px 0 48px;
}

.page-contact .contact-channels h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 5.4vw, 2.3rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-contact .channels-intro {
  max-width: 58ch;
  margin: 12px 0 26px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--sage);
}

.page-contact .channel-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
}

.page-contact .channel {
  background: var(--ink-2);
  padding: 22px 18px 26px;
  min-width: 0;
}

.page-contact .channel__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--cyan);
}

.page-contact .channel h3 {
  margin: 10px 0 8px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-contact .channel p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--sage);
}

.page-contact .channel strong {
  display: block;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--paper);
  overflow-wrap: anywhere;
}

/* ===== 咨询分类 ===== */
.page-contact .contact-router {
  background: var(--paper);
  color: var(--charcoal);
  padding: clamp(52px, 7vw, 88px) 0;
}

.page-contact .contact-router h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 6vw, 2.9rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--charcoal);
}

.page-contact .router-intro {
  max-width: 56ch;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: #3d4a44;
}

.page-contact .router-grid {
  display: grid;
  gap: 16px;
  margin-top: 30px;
}

.page-contact .router-card {
  position: relative;
  background: var(--paper-2);
  border: 1px solid rgba(17, 24, 21, 0.16);
  border-left: 3px solid var(--orange);
  padding: 22px 18px 20px;
  box-shadow: 6px 6px 0 rgba(10, 42, 33, 0.08);
  min-width: 0;
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-contact .router-card:hover {
  transform: translateY(-2px);
  box-shadow: 6px 8px 0 rgba(255, 122, 26, 0.28);
}

.page-contact .router-card .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  padding: 3px 8px;
  border: 1px solid rgba(17, 24, 21, 0.24);
  color: var(--charcoal);
}

.page-contact .router-card .tag--signal {
  background: var(--orange);
  border-color: var(--orange);
  color: #1a1206;
}

.page-contact .router-card h3 {
  margin: 14px 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--charcoal);
}

.page-contact .router-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #3d4a44;
}

.page-contact .router-card__meta {
  display: block;
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px dashed rgba(17, 24, 21, 0.24);
  font-family: var(--font-mono);
  font-size: 12px;
  color: #6d5a41;
  overflow-wrap: anywhere;
}

/* ===== 邮件写法 ===== */
.page-contact .contact-mail {
  background: var(--ink);
  padding: clamp(52px, 7vw, 92px) 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .mail-grid {
  display: grid;
  gap: 32px;
}

.page-contact .mail-copy h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.7rem, 5.6vw, 2.6rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.page-contact .mail-lead {
  max-width: 46ch;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--sage);
}

.page-contact .mail-steps {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 20px;
  counter-reset: mailstep;
}

.page-contact .mail-steps li {
  position: relative;
  counter-increment: mailstep;
  padding-left: 46px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--sage);
}

.page-contact .mail-steps li::before {
  content: counter(mailstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
  border: 1px solid rgba(255, 122, 26, 0.55);
  padding: 2px 5px;
}

.page-contact .mail-steps strong {
  color: var(--paper);
  font-weight: 700;
}

.page-contact .mail-sample {
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  padding: 22px 18px 24px;
  min-width: 0;
}

.page-contact .mail-sample__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-contact .mail-sample__subject {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .mail-sample__body {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line-strong);
}

.page-contact .mail-sample__body p {
  margin: 0 0 6px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--sage);
}

.page-contact .mail-sample__body p:last-child {
  margin-bottom: 0;
  color: var(--paper);
}

/* ===== 响应时间 ===== */
.page-contact .contact-response {
  background: var(--ink-2);
  padding: clamp(48px, 6vw, 84px) 0;
}

.page-contact .response-grid {
  display: grid;
  gap: 30px;
}

.page-contact .response-figure {
  margin: 0;
  min-width: 0;
}

.page-contact .response-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .response-copy h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.7rem, 5.6vw, 2.6rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.page-contact .response-copy > p {
  max-width: 50ch;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--sage);
}

.page-contact .response-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .response-list li {
  border-top: 1px solid var(--line);
  padding: 14px 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--sage);
}

.page-contact .response-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .response-list__key {
  display: inline-block;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--orange);
  border: 1px solid rgba(255, 122, 26, 0.45);
  padding: 2px 6px;
}

/* ===== 合作与媒体 ===== */
.page-contact .contact-coop {
  background: var(--ink-3);
  padding: clamp(52px, 7vw, 92px) 0;
}

.page-contact .coop-grid {
  display: grid;
  gap: 34px;
}

.page-contact .coop-copy h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.7rem, 5.8vw, 2.7rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.page-contact .coop-copy > p {
  max-width: 52ch;
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--sage);
}

.page-contact .coop-note {
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  color: var(--paper) !important;
  font-size: 14px !important;
}

.page-contact .coop-btn {
  display: inline-block;
  margin-top: 22px;
  padding: 12px 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  background: var(--orange);
  color: #1a1206;
  text-decoration: none;
  border: 1px solid var(--orange);
  transition: transform 0.18s var(--ease), background 0.18s var(--ease);
}

.page-contact .coop-btn:hover,
.page-contact .coop-btn:focus-visible {
  background: var(--orange-soft);
  border-color: var(--orange-soft);
  transform: translateY(-2px);
}

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

.page-contact .coop-list li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-contact .coop-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .coop-list__num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--orange-soft);
  line-height: 1.2;
}

.page-contact .coop-list h3 {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .coop-list p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--sage);
}

.page-contact .coop-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 26px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .coop-stat {
  background: var(--ink-3);
  padding: 16px 14px;
  min-width: 0;
}

.page-contact .coop-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 6vw, 2rem);
  font-weight: 700;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.page-contact .coop-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--sage);
}

/* ===== 自助路径 ===== */
.page-contact .contact-self {
  background: var(--paper);
  color: var(--charcoal);
  padding: 64px 0 56px;
  margin-top: -34px;
  clip-path: polygon(0 34px, 100% 0, 100% 100%, 0 100%);
}

.page-contact .contact-self h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 6vw, 2.8rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--charcoal);
}

.page-contact .self-intro {
  max-width: 54ch;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: #3d4a44;
}

.page-contact .self-grid {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.page-contact .self-card {
  display: block;
  position: relative;
  padding: 20px 18px 18px;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(17, 24, 21, 0.18);
  color: var(--charcoal);
  text-decoration: none;
  min-width: 0;
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease), background 0.18s var(--ease);
}

.page-contact .self-card:hover,
.page-contact .self-card:focus-visible {
  border-color: var(--orange);
  background: rgba(255, 179, 107, 0.22);
  transform: translateY(-2px);
}

.page-contact .self-card__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: #8a5b26;
}

.page-contact .self-card h3 {
  margin: 10px 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--charcoal);
}

.page-contact .self-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: #3d4a44;
}

.page-contact .self-card__go {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: #a1470c;
}

.page-contact .self-card__go::after {
  content: " →";
}

.page-contact .self-foot {
  margin: 26px 0 0;
  font-size: 13px;
  line-height: 1.9;
  color: #3d4a44;
}

.page-contact .self-foot a {
  color: #a1470c;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .self-foot a:hover {
  color: var(--charcoal);
}

/* ===== 断点 ===== */
@media (min-width: 620px) {
  .page-contact .contact-hero {
    padding: 24px 0 52px;
  }

  .page-contact .channel {
    padding: 26px 24px 30px;
  }

  .page-contact .contact-self {
    padding: 76px 0 64px;
    margin-top: -44px;
    clip-path: polygon(0 44px, 100% 0, 100% 100%, 0 100%);
  }
}

@media (min-width: 780px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .router-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

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

@media (min-width: 900px) {
  .page-contact .mail-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .response-grid {
    grid-template-columns: minmax(0, 400px) minmax(0, 1fr);
    gap: 52px;
    align-items: center;
  }

  .page-contact .coop-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 56px;
    align-items: start;
  }
}

@media (min-width: 940px) {
  .page-contact .contact-hero {
    padding: 28px 0 60px;
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1fr) 236px;
    gap: 56px;
    align-items: end;
    margin-top: 44px;
  }

  .page-contact .contact-hero__aside {
    display: block;
    border-left: 2px solid var(--orange);
    padding-left: 18px;
  }

  .page-contact .contact-line__value {
    font-size: clamp(1.4rem, 2.2vw, 1.85rem);
  }
}

@media (min-width: 1100px) {
  .page-contact .self-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-line,
  .page-contact .router-card,
  .page-contact .self-card,
  .page-contact .coop-btn {
    transition: none;
  }

  .page-contact a.contact-line:hover,
  .page-contact .router-card:hover,
  .page-contact .self-card:hover,
  .page-contact .coop-btn:hover {
    transform: none;
  }
}