.page-contact {
  --contact-edge: rgba(155, 176, 191, 0.3);
  --contact-glow:
    radial-gradient(70% 90% at 82% 8%, rgba(55, 243, 210, 0.18), rgba(7, 26, 43, 0) 60%),
    radial-gradient(52% 64% at 2% 98%, rgba(255, 107, 74, 0.16), rgba(7, 26, 43, 0) 64%);
  --contact-paper-lines: repeating-linear-gradient(0deg, rgba(42, 28, 22, 0.055) 0 1px, transparent 1px 28px);
  background: var(--paper);
  color: var(--brown);
}

.page-contact a {
  color: inherit;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(84px, 13vw, 128px) 0 clamp(46px, 7vw, 74px);
  background-color: var(--ink);
  background-image: var(--contact-glow);
  color: var(--paper);
  overflow: hidden;
}

.page-contact .contact-hero .breadcrumb {
  font-size: 13px;
  color: rgba(244, 235, 221, 0.68);
}

.page-contact .contact-hero .eyebrow {
  color: var(--cyan);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  margin-top: clamp(20px, 4vw, 34px);
}

.page-contact .contact-hero__title {
  margin: 16px 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(32px, 7vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.page-contact .contact-hero__lede {
  max-width: 36em;
  margin: 18px 0 0;
  font-size: clamp(15px, 2.2vw, 18px);
  line-height: 1.85;
  color: rgba(244, 235, 221, 0.85);
}

.page-contact .mail-block {
  margin-top: clamp(26px, 5vw, 42px);
  padding: 20px 20px 18px;
  border: 1px solid rgba(55, 243, 210, 0.34);
  border-left: 4px solid var(--coral);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(11, 46, 74, 0.92), rgba(5, 19, 31, 0.92));
}

.page-contact .mail-block__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-contact .mail-block__value {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 3.9vw, 28px);
  line-height: 1.35;
  letter-spacing: 0.01em;
  color: var(--cyan);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .mail-block__hint {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(244, 235, 221, 0.7);
}

.page-contact .channel-stack {
  display: grid;
  gap: 14px;
}

.page-contact .channel-card {
  position: relative;
  padding: 20px 20px 20px 24px;
  border: 1px solid var(--contact-edge);
  border-radius: var(--radius);
  background: rgba(11, 46, 74, 0.62);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--cyan);
}

.page-contact .channel-card--phone::before {
  background: var(--coral);
}

.page-contact .channel-card__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: rgba(244, 235, 221, 0.62);
}

.page-contact .channel-card__value {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.8vw, 22px);
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .channel-card__note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(244, 235, 221, 0.72);
}

.page-contact .hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(30px, 5vw, 50px);
  overflow: hidden;
  border: 1px solid var(--contact-edge);
  border-radius: var(--radius);
  background: var(--contact-edge);
}

.page-contact .stat {
  padding: 18px 16px;
  background: rgba(5, 19, 31, 0.76);
}

.page-contact .stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.9vw, 27px);
  line-height: 1.3;
  color: var(--cyan);
}

.page-contact .stat__label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.65;
  color: rgba(244, 235, 221, 0.7);
}

/* ---------- 通用区块 ---------- */
.page-contact .contact-section {
  padding: clamp(46px, 8vw, 86px) 0;
}

.page-contact .contact-section--paper {
  background: var(--paper);
  color: var(--brown);
}

.page-contact .contact-section--ink {
  background: var(--ink-2);
  color: var(--paper);
}

.page-contact .section-head {
  max-width: 46rem;
}

.page-contact .section-head .eyebrow {
  color: var(--coral);
}

.page-contact .section-head--inverse .eyebrow {
  color: var(--cyan);
}

.page-contact .section-head .t-h2 {
  margin: 14px 0 0;
  font-size: clamp(24px, 3.8vw, 40px);
  line-height: 1.22;
}

.page-contact .section-head__lede {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(42, 28, 22, 0.76);
}

.page-contact .section-head--inverse .section-head__lede {
  color: rgba(244, 235, 221, 0.78);
}

.page-contact .contact-figure {
  margin: clamp(24px, 4vw, 38px) 0 clamp(26px, 4vw, 40px);
  overflow: hidden;
  border-radius: var(--radius);
}

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

/* ---------- 渠道矩阵 ---------- */
.page-contact .channel-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .contact-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid rgba(42, 28, 22, 0.14);
  border-top: 4px solid var(--cyan);
  border-radius: var(--radius);
  background: #FFFBF4;
  box-shadow: var(--shadow-print);
}

.page-contact .contact-card--phone {
  border-top-color: var(--coral);
}

.page-contact .contact-card--addr {
  border-top-color: var(--amber);
}

.page-contact .contact-card__no {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: rgba(42, 28, 22, 0.42);
}

.page-contact .contact-card .t-h3 {
  margin: 0;
  font-size: clamp(19px, 2.6vw, 24px);
}

.page-contact .contact-card__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(42, 28, 22, 0.8);
}

.page-contact .contact-card__meta {
  margin: 4px 0 0;
  padding-top: 12px;
  border-top: 1px dashed rgba(42, 28, 22, 0.2);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-2);
  overflow-wrap: anywhere;
}

/* ---------- 分派清单 ---------- */
.page-contact .route-list {
  display: grid;
  gap: 12px;
  margin-top: clamp(24px, 4vw, 34px);
}

.page-contact .route-row {
  display: grid;
  gap: 8px;
  padding: 18px 18px 18px 20px;
  border-left: 3px solid var(--coral);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(244, 235, 221, 0.055);
}

.page-contact .route-row__topic {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .route-row__channel {
  margin: 0;
}

.page-contact .route-row__how {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(244, 235, 221, 0.74);
}

.page-contact .router-foot {
  margin: clamp(24px, 4vw, 34px) 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(244, 235, 221, 0.78);
}

.page-contact .router-foot a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应节奏 ---------- */
.page-contact .response-grid {
  display: grid;
  gap: clamp(20px, 4vw, 32px);
  margin-top: clamp(24px, 4vw, 36px);
}

.page-contact .response-figure {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
}

.page-contact .timeline-panel {
  padding: clamp(22px, 3.4vw, 32px);
  border-radius: var(--radius);
  background: var(--ink);
  background-image: radial-gradient(80% 70% at 92% 4%, rgba(55, 243, 210, 0.14), rgba(7, 26, 43, 0) 62%);
  color: var(--paper);
}

.page-contact .timeline {
  list-style: none;
  display: grid;
  gap: 22px;
  margin: 0;
  padding: 0;
}

.page-contact .timeline__item {
  position: relative;
  padding-left: 30px;
}

.page-contact .timeline__item::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 22px;
  bottom: -22px;
  width: 2px;
  background: linear-gradient(180deg, var(--coral), rgba(255, 107, 74, 0.12));
}

.page-contact .timeline__item:last-child::before {
  display: none;
}

.page-contact .timeline__dot {
  position: absolute;
  left: 0;
  top: 5px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ink);
  border: 3px solid var(--cyan);
}

.page-contact .timeline__time {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--coral);
}

.page-contact .timeline__title {
  margin: 6px 0 0;
  font-size: 17px;
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .timeline__text {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(244, 235, 221, 0.74);
}

.page-contact .fold {
  margin-top: clamp(22px, 4vw, 32px);
  border: 1px solid rgba(42, 28, 22, 0.18);
  border-radius: var(--radius);
  background: #FFFBF4;
}

.page-contact .fold__summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  font-size: 15px;
  font-weight: 700;
  color: var(--brown);
  cursor: pointer;
  list-style: none;
}

.page-contact .fold__summary::-webkit-details-marker {
  display: none;
}

.page-contact .fold__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--coral);
}

.page-contact .fold[open] .fold__summary::after {
  content: "–";
}

.page-contact .fold__body {
  padding: 0 18px 18px;
}

.page-contact .fold-list {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(42, 28, 22, 0.82);
}

/* ---------- 合作与纠错 ---------- */
.page-contact .partner-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(24px, 4vw, 36px);
  grid-template-columns: minmax(0, 1fr);
}

.page-contact .partner-panel {
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--contact-edge);
  border-radius: var(--radius);
  background: rgba(244, 235, 221, 0.055);
}

.page-contact .partner-panel--coop {
  border-top: 4px solid var(--cyan);
}

.page-contact .partner-panel--fix {
  border-top: 4px solid var(--amber);
}

.page-contact .partner-panel__title {
  margin: 14px 0 0;
  font-size: clamp(18px, 2.6vw, 23px);
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .partner-panel__body {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(244, 235, 221, 0.78);
}

.page-contact .partner-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .partner-list li {
  position: relative;
  padding-left: 18px;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(244, 235, 221, 0.72);
}

.page-contact .partner-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  background: var(--coral);
}

/* ---------- 邮寄 ---------- */
.page-contact .mailing {
  display: grid;
  gap: clamp(20px, 4vw, 30px);
  margin-top: clamp(22px, 4vw, 32px);
}

.page-contact .mailing__card {
  position: relative;
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid rgba(42, 28, 22, 0.2);
  border-left: 5px solid var(--coral);
  border-radius: var(--radius);
  background-color: #FFFBF4;
  background-image: var(--contact-paper-lines);
  box-shadow: var(--shadow-print);
}

.page-contact .mailing__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: rgba(42, 28, 22, 0.5);
}

.page-contact .mailing__addr {
  margin: 12px 0 0;
  font-size: clamp(18px, 3.2vw, 26px);
  font-weight: 800;
  line-height: 1.55;
  letter-spacing: 0.01em;
  color: var(--brown);
}

.page-contact .mailing__note {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(42, 28, 22, 0.78);
}

.page-contact .mailing__side {
  padding: clamp(18px, 3vw, 26px);
  border: 1px dashed rgba(42, 28, 22, 0.26);
  border-radius: var(--radius);
}

.page-contact .mailing__side-title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--brown);
}

.page-contact .mailing__side-text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(42, 28, 22, 0.8);
}

.page-contact .mailing__side-text a {
  color: var(--ink-2);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--coral);
}

.page-contact .mailing__side-meta {
  margin: 14px 0 0;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--ink-2);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-contact .route-row {
    grid-template-columns: minmax(0, 1.05fr) 130px minmax(0, 1.55fr);
    align-items: center;
    gap: 18px;
  }

  .page-contact .mailing {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-contact .partner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .response-grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: start;
  }

  .page-contact .channel-card--hours {
    margin-left: 26px;
    margin-top: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .channel-card,
  .page-contact .partner-panel {
    transition: none;
  }
}