.page-contact {
  --contact-pad: clamp(20px, 4vw, 56px);
  --contact-gap: clamp(28px, 4.4vw, 64px);
  --contact-rule: 1px solid var(--line-soft);
  background-color: var(--ink);
  color: var(--snow);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.85;
  padding-top: clamp(108px, 13vw, 168px);
  padding-bottom: clamp(64px, 9vw, 128px);
  overflow-x: hidden;
}

.page-contact *,
.page-contact *::before,
.page-contact *::after {
  box-sizing: border-box;
}

.page-contact a {
  color: inherit;
  text-decoration: none;
}

.page-contact .contact-crumb {
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-contact .breadcrumb {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.16em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-contact .breadcrumb a {
  color: var(--snow-soft);
  transition: color var(--dur) var(--ease);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--lime);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: var(--contact-gap);
  align-items: stretch;
  padding-bottom: clamp(32px, 5vw, 68px);
  border-bottom: var(--contact-rule);
}

.page-contact .eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.2em;
  color: var(--lime);
  text-transform: uppercase;
  margin: 0 0 clamp(16px, 2vw, 26px);
}

.page-contact .contact-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(34px, 6.2vw, 78px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--snow);
  max-width: 15ch;
}

.page-contact .contact-lead {
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  max-width: 52ch;
  color: var(--snow-soft);
  font-size: var(--fs-body);
  line-height: 1.9;
}

.page-contact .contact-quick {
  list-style: none;
  margin: clamp(24px, 3vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: var(--contact-rule);
}

.page-contact .contact-quick li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 0;
  border-bottom: var(--contact-rule);
}

.page-contact .contact-quick-k {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-contact .contact-quick-v {
  font-size: 15px;
  color: var(--snow);
  letter-spacing: 0.01em;
}

.page-contact .contact-hero-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background-color: var(--field-deep);
  overflow: hidden;
  min-height: 240px;
}

.page-contact .contact-hero-figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

.page-contact .contact-hero-figure figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 18px clamp(16px, 2vw, 24px);
  background: linear-gradient(180deg, rgba(7, 11, 9, 0) 0%, rgba(7, 11, 9, 0.94) 78%);
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.12em;
  color: var(--snow-soft);
}

/* ---------- 章节通用 ---------- */
.page-contact .contact-section {
  margin-top: clamp(48px, 7vw, 104px);
}

.page-contact .contact-head {
  display: grid;
  gap: 12px;
  padding-bottom: clamp(20px, 2.4vw, 30px);
  border-bottom: var(--contact-rule);
  margin-bottom: clamp(24px, 3vw, 40px);
}

.page-contact .contact-head .index-no {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-contact .contact-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(25px, 3.8vw, 50px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--snow);
}

.page-contact .contact-sub {
  margin: 0;
  max-width: 62ch;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
}

/* ---------- 01 渠道 ---------- */
.page-contact .contact-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-contact .channel {
  border: 1px solid var(--line);
  background-color: var(--field-deep);
  padding: clamp(20px, 2.6vw, 34px);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  border-color: var(--lime);
}

.page-contact .channel--mail {
  background-image: linear-gradient(158deg, var(--field-board) 0%, var(--field-deep) 72%);
}

.page-contact .channel-k {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-contact .channel-v {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(19px, 2.2vw, 26px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--snow);
  overflow-wrap: anywhere;
}

.page-contact .channel-v--mono {
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.9vw, 22px);
  letter-spacing: 0.04em;
  color: var(--lime);
}

.page-contact .channel--mail .channel-v--mono {
  font-size: clamp(15px, 2.4vw, 28px);
}

.page-contact .channel-tel {
  display: inline-block;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .channel-tel:hover,
.page-contact .channel-tel:focus-visible {
  border-bottom-color: var(--lime);
}

.page-contact .channel-d {
  margin: 14px 0 0;
  color: var(--snow-soft);
  font-size: 15px;
  line-height: 1.8;
}

.page-contact .contact-extra {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 12px;
}

.page-contact .channel-figure {
  margin: 0;
  border: 1px solid var(--line);
  background-color: var(--field-board);
  overflow: hidden;
  min-height: 180px;
}

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

.page-contact .channel-meta {
  border: 1px solid var(--line);
  padding: clamp(20px, 2.6vw, 34px);
  background-color: rgba(18, 51, 40, 0.35);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-contact .channel-meta-k {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-contact .channel-meta-v {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 0.08em;
  color: var(--snow);
}

.page-contact .channel-meta-d {
  margin: 0;
  color: var(--snow-soft);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 02 邮件 ---------- */
.page-contact .contact-mailgrid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 44px);
}

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

.page-contact .mail-list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 22px 0;
  border-top: var(--contact-rule);
}

.page-contact .mail-list li:last-child {
  border-bottom: var(--contact-rule);
}

.page-contact .mail-no {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.16em;
  color: var(--lime);
  padding-top: 6px;
}

.page-contact .mail-list h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.3;
  color: var(--snow);
}

.page-contact .mail-list p {
  margin: 0;
  color: var(--snow-soft);
  font-size: 15px;
  line-height: 1.85;
}

.page-contact .mail-aside {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-contact .mail-note {
  background-color: var(--paper);
  color: var(--paper-ink);
  padding: clamp(22px, 2.8vw, 36px);
  border: 1px solid rgba(20, 16, 10, 0.12);
}

.page-contact .mail-note-k {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.18em;
  color: rgba(20, 16, 10, 0.62);
}

.page-contact .mail-note-v {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1.3;
  color: var(--paper-ink);
}

.page-contact .mail-note-d {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(20, 16, 10, 0.78);
}

.page-contact .mail-draft {
  border: 1px solid var(--line);
  padding: clamp(20px, 2.6vw, 32px);
  background-color: rgba(11, 31, 23, 0.6);
}

.page-contact .mail-draft-k {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-contact .draft-field {
  display: block;
  margin-top: 16px;
}

.page-contact .draft-field span {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .draft-field input {
  width: 100%;
  margin-top: 6px;
  padding: 8px 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background-color: transparent;
  color: var(--snow);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  transition: border-color var(--dur) var(--ease);
}

.page-contact .draft-field input::placeholder {
  color: rgba(158, 181, 170, 0.7);
}

.page-contact .draft-field input:focus {
  outline: none;
  border-bottom-color: var(--lime);
}

.page-contact .mail-draft-note {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  border-left: 2px solid var(--lime);
  padding-left: 12px;
}

/* ---------- 03 电话 ---------- */
.page-contact .phone-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
}

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

.page-contact .phone-prep li {
  padding: 20px 0;
  border-top: var(--contact-rule);
}

.page-contact .phone-prep li:last-child {
  border-bottom: var(--contact-rule);
}

.page-contact .phone-prep-k {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.18em;
  color: var(--cyan);
  margin-bottom: 8px;
}

.page-contact .phone-prep p {
  margin: 0;
  color: var(--snow-soft);
  font-size: 15px;
  line-height: 1.85;
}

.page-contact .phone-panel {
  border: 1px solid var(--line);
  background-image: linear-gradient(200deg, rgba(18, 51, 40, 0.9), rgba(7, 11, 9, 0.9));
  padding: clamp(22px, 2.8vw, 36px);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-contact .phone-panel-k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-contact .phone-panel-v {
  margin: 0;
  font-family: var(--font-data, var(--font-display));
  font-weight: 700;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--lime);
}

.page-contact .phone-panel-d {
  margin: 0;
  color: var(--snow-soft);
  font-size: 15px;
  line-height: 1.85;
}

.page-contact .phone-link {
  align-self: flex-start;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--amber);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .phone-link:hover,
.page-contact .phone-link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ---------- 04 地址与服务地区 ---------- */
.page-contact .address-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-contact .address-card {
  background-color: var(--paper);
  color: var(--paper-ink);
  padding: clamp(24px, 3vw, 40px);
  border: 1px solid rgba(20, 16, 10, 0.12);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-contact .address-k {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.18em;
  color: rgba(20, 16, 10, 0.6);
}

.page-contact .address-v {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(21px, 2.8vw, 32px);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.page-contact .address-d {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(20, 16, 10, 0.78);
}

.page-contact .service-grid {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--line);
}

.page-contact .service-grid > div {
  padding: 20px clamp(16px, 2vw, 26px);
  border-top: 1px solid var(--line);
}

.page-contact .service-grid > div:first-child {
  border-top: 0;
}

.page-contact .service-grid dt {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.16em;
  color: var(--mist);
  margin-bottom: 8px;
}

.page-contact .service-grid dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--snow);
}

/* ---------- 05 合作 ---------- */
.page-contact .coop-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-contact .coop-card {
  border: 1px solid var(--line);
  padding: clamp(22px, 2.8vw, 36px);
  background-color: var(--field-deep);
  border-left: 3px solid var(--lime);
}

.page-contact .coop-card--amber {
  border-left-color: var(--amber);
  background-color: rgba(18, 51, 40, 0.55);
}

.page-contact .coop-card h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(19px, 2.2vw, 26px);
  line-height: 1.3;
  color: var(--snow);
}

.page-contact .coop-card p {
  margin: 0;
  color: var(--snow-soft);
  font-size: 15px;
  line-height: 1.85;
}

.page-contact .coop-card .coop-tip {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--lime);
}

.page-contact .coop-card--amber .coop-tip {
  color: var(--amber);
}

/* ---------- 06 先看帮助 ---------- */
.page-contact .help-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: var(--contact-rule);
}

.page-contact .help-links li {
  border-bottom: var(--contact-rule);
}

.page-contact .help-links a {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 20px 0;
  transition: background-color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-contact .help-links a:hover,
.page-contact .help-links a:focus-visible {
  background-color: rgba(200, 255, 62, 0.06);
  padding-left: 10px;
}

.page-contact .help-links-k {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 19px;
  line-height: 1.3;
  color: var(--snow);
  transition: color var(--dur) var(--ease);
}

.page-contact .help-links a:hover .help-links-k,
.page-contact .help-links a:focus-visible .help-links-k {
  color: var(--lime);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-quick li {
    border-bottom: 0;
    border-left: var(--contact-rule);
    padding: 16px;
  }

  .page-contact .contact-quick li:first-child {
    border-left: 0;
    padding-left: 0;
  }

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

  .page-contact .service-grid > div {
    border-top: 1px solid var(--line);
  }

  .page-contact .service-grid > div:nth-child(odd) {
    border-right: 1px solid var(--line);
  }

  .page-contact .service-grid > div:nth-child(-n + 2) {
    border-top: 0;
  }

  .page-contact .help-links a {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
    align-items: baseline;
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .contact-hero-figure {
    min-height: 380px;
  }

  .page-contact .contact-channels {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  }

  .page-contact .channel--mail {
    grid-row: span 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

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

  .page-contact .contact-mailgrid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .phone-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .address-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr);
    align-items: stretch;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms !important;
  }

  .page-contact .help-links a:hover,
  .page-contact .help-links a:focus-visible {
    padding-left: 0;
  }
}

.page-contact {
  --font-data: inherit;
}