.page-contact {
  --pc-bg-deep: #0A240C;
  --pc-gold-light: #FFE082;
  --pc-line-light: rgba(255, 255, 255, 0.22);
  --pc-line-dark: rgba(45, 45, 45, 0.14);
  --pc-blue: #0277BD;
  --pc-orange: #D84315;
  --pc-pink: #AD1457;
  --pc-teal: #00695C;
  --pc-summer-bg: rgba(79, 195, 247, 0.16);
  --pc-autumn-bg: rgba(255, 112, 67, 0.14);
  --pc-spring-bg: rgba(248, 187, 208, 0.18);
  --pc-teal-bg: rgba(0, 191, 165, 0.12);
  background: var(--si-bg);
  overflow-x: hidden;
}

.page-contact .si-section-index {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--si-green-dark);
  margin-bottom: 12px;
}

/* ===== 页头 ===== */
.page-contact__header {
  padding: 36px 20px 32px;
}

@media (min-width: 760px) {
  .page-contact__header {
    padding: 56px 28px 44px;
  }
}

.page-contact__header .si-breadcrumb {
  margin-bottom: 32px;
  font-size: 0.8rem;
}

.page-contact__header-kicker {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--si-gold);
  margin: 0 0 14px;
  text-transform: uppercase;
}

.page-contact__header h1 {
  font-family: var(--si-heading-font);
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  letter-spacing: 0.015em;
  line-height: 0.94;
  color: var(--si-green-deep);
  margin: 0;
  max-width: 9em;
}

.page-contact__header h1 em {
  display: block;
  font-family: var(--si-body-font);
  font-size: clamp(0.92rem, 2vw, 1.1rem);
  font-weight: 500;
  font-style: normal;
  letter-spacing: 0.08em;
  line-height: 1.55;
  color: var(--si-ink-soft);
  margin-top: 20px;
  max-width: 42ch;
}

.page-contact__header-lead {
  margin-top: 18px;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--si-ink-soft);
  max-width: 58ch;
}

.page-contact__quick-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
  padding: 16px 0;
  border-top: 1px dashed var(--si-border);
  border-bottom: 1px dashed var(--si-border);
}

.page-contact__quick-nav a {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--si-green-dark);
  text-decoration: none;
  border: 1px solid var(--si-border);
  border-radius: 999px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.6);
  transition: border-color 0.25s var(--si-ease), background 0.25s var(--si-ease), transform 0.25s var(--si-ease);
}

.page-contact__quick-nav a:hover {
  border-color: var(--si-gold);
  background: rgba(255, 179, 0, 0.1);
  transform: translateY(-2px);
}

/* ===== 左右分屏 ===== */
.page-contact__split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  position: relative;
}

@media (min-width: 900px) {
  .page-contact__split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: stretch;
  }
}

/* 左：深绿联系面板 */
.page-contact__channels {
  position: relative;
  background: linear-gradient(150deg, var(--si-green-dark) 0%, var(--si-green-deep) 76%, var(--pc-bg-deep) 100%);
  color: var(--si-white-soft, #fff);
  overflow: hidden;
  min-height: 720px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-contact__channels::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 76px 76px;
  pointer-events: none;
  z-index: 0;
}

.page-contact__channels::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--si-gold), var(--si-gold-soft), var(--si-teal), var(--si-purple));
  z-index: 2;
}

.page-contact__channels-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  pointer-events: none;
  z-index: 0;
}

.page-contact__channels-inner {
  position: relative;
  z-index: 1;
  padding: 56px 24px 64px;
  max-width: 640px;
  width: 100%;
  box-sizing: border-box;
}

@media (min-width: 900px) {
  .page-contact__channels-inner {
    padding: 96px clamp(32px, 5vw, 72px);
    margin-left: auto;
  }
}

.page-contact__channels .si-section-index {
  color: var(--pc-gold-light);
  border-left: 3px solid var(--si-gold);
  padding-left: 10px;
}

.page-contact__channels h2 {
  font-family: var(--si-heading-font);
  font-size: clamp(1.9rem, 4.5vw, 2.9rem);
  letter-spacing: 0.02em;
  color: #ffffff;
  margin: 0 0 14px;
}

.page-contact__channels-lead {
  font-size: 0.95rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.78);
  margin: 0 0 30px;
  max-width: 48ch;
}

.page-contact__channel {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.2);
}

.page-contact__channel:first-of-type {
  border-top: 1px dashed rgba(255, 255, 255, 0.2);
}

.page-contact__channel-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--si-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(255, 179, 0, 0.34);
}

.page-contact__channel-icon svg {
  width: 24px;
  height: 24px;
  display: block;
}

.page-contact__channel-body {
  min-width: 0;
}

.page-contact__channel-tag {
  display: block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--si-gold-soft);
  margin-bottom: 6px;
}

.page-contact__channel h3 {
  font-family: var(--si-heading-font);
  font-size: 1.35rem;
  letter-spacing: 0.03em;
  color: #ffffff;
  margin: 0 0 8px;
}

.page-contact__channel-value {
  display: block;
  font-size: clamp(1.05rem, 2.4vw, 1.35rem);
  font-weight: 800;
  color: var(--si-gold);
  word-break: break-all;
  margin-bottom: 8px;
  user-select: all;
  -webkit-user-select: all;
}

.page-contact__channel-desc {
  font-size: 0.88rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

/* 左：地图占位 */
.page-contact__map {
  margin: 30px 0 0;
  position: relative;
  border: 1px dashed rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.04);
}

.page-contact__map img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  aspect-ratio: 2 / 1;
}

.page-contact__map figcaption {
  position: absolute;
  left: 12px;
  bottom: 10px;
  padding: 6px 12px;
  background: rgba(13, 52, 16, 0.88);
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  border-left: 3px solid var(--si-gold);
}

/* 右：邮件撰写指引 */
.page-contact__compose {
  position: relative;
  background: var(--si-bg);
  padding: 56px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-contact__compose::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 46%;
  height: 100%;
  background-image: repeating-linear-gradient(45deg, rgba(255, 179, 0, 0.05) 0 8px, transparent 8px 16px);
  pointer-events: none;
  z-index: 0;
}

@media (min-width: 900px) {
  .page-contact__compose {
    padding: 96px clamp(32px, 5vw, 72px);
  }
}

.page-contact__compose > * {
  position: relative;
  z-index: 1;
}

.page-contact__compose h2 {
  font-family: var(--si-heading-font);
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  letter-spacing: 0.02em;
  color: var(--si-green-deep);
  margin: 0 0 14px;
}

.page-contact__compose-lead {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--si-ink-soft);
  margin: 0 0 30px;
  max-width: 52ch;
}

.page-contact__visual-form {
  margin: 0 0 34px;
}

.page-contact__vf-row {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--si-border);
  border-left: 4px solid var(--si-gold);
  border-radius: var(--si-radius);
  padding: 18px 20px;
  margin-bottom: 14px;
  box-shadow: 0 8px 24px rgba(13, 52, 16, 0.05);
}

.page-contact__vf-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--si-green-dark);
  margin-bottom: 10px;
}

.page-contact__vf-content {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--si-ink);
  word-break: break-all;
}

.page-contact__vf-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.page-contact__chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  background: var(--si-bg);
  border: 1px solid var(--si-border);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--si-ink-soft);
}

.page-contact__chip[data-season-dot="spring"] {
  color: var(--pc-pink);
  background: var(--pc-spring-bg);
  border-color: rgba(248, 187, 208, 0.8);
}

.page-contact__chip[data-season-dot="summer"] {
  color: var(--pc-blue);
  background: var(--pc-summer-bg);
  border-color: rgba(79, 195, 247, 0.8);
}

.page-contact__chip[data-season-dot="autumn"] {
  color: var(--pc-orange);
  background: var(--pc-autumn-bg);
  border-color: rgba(255, 112, 67, 0.7);
}

.page-contact__chip[data-season-dot="winter"] {
  color: var(--pc-teal);
  background: rgba(224, 247, 250, 0.7);
  border-color: rgba(0, 191, 165, 0.5);
}

.page-contact__vf-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact__vf-list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--si-ink-soft);
}

.page-contact__vf-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--si-gold);
  font-weight: 800;
}

.page-contact__compose-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* ===== 商务合作 ===== */
.page-contact__biz {
  padding: 64px 20px;
  background: #ffffff;
  transform: translateZ(0);
}

@media (min-width: 900px) {
  .page-contact__biz {
    padding: 100px 28px;
  }
}

.page-contact__section-head {
  max-width: 720px;
  margin-bottom: 36px;
}

.page-contact__section-head h2 {
  font-family: var(--si-heading-font);
  font-size: clamp(2rem, 5vw, 3.4rem);
  letter-spacing: 0.02em;
  color: var(--si-green-deep);
  margin: 0 0 12px;
}

.page-contact__section-head p {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--si-ink-soft);
  margin: 0;
}

.page-contact__biz-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

@media (min-width: 640px) {
  .page-contact__biz-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-contact__biz-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-contact__biz-step {
  position: relative;
  padding: 28px 24px 24px;
  background: var(--si-bg);
  border: 1px solid var(--si-border);
  border-top: 4px solid var(--si-green-dark);
  overflow: hidden;
  transition: transform 0.3s var(--si-ease), box-shadow 0.3s var(--si-ease);
}

@media (hover: hover) {
  .page-contact__biz-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 18px 44px rgba(13, 52, 16, 0.1);
  }
}

.page-contact__biz-step::after {
  content: '';
  position: absolute;
  right: -16px;
  top: -16px;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, transparent 49%, rgba(255, 179, 0, 0.18) 50%);
  pointer-events: none;
}

.page-contact__biz-num {
  display: inline-block;
  font-family: var(--si-heading-font);
  font-size: 2.1rem;
  line-height: 1;
  color: var(--si-gold);
  margin-bottom: 16px;
}

.page-contact__biz-step h3 {
  font-family: var(--si-heading-font);
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  margin-bottom: 8px;
  color: var(--si-ink);
}

.page-contact__biz-step p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--si-ink-soft);
  margin: 0;
}

.page-contact__biz-subjects {
  margin-top: 34px;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px dashed var(--si-border);
  border-left: 4px solid var(--si-gold);
  background: rgba(247, 245, 240, 0.6);
}

@media (min-width: 640px) {
  .page-contact__biz-subjects {
    flex-direction: row;
    align-items: center;
    gap: 14px;
  }
}

.page-contact__biz-subjects span {
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--si-green-dark);
  white-space: nowrap;
}

.page-contact__biz-subjects p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--si-ink-soft);
}

/* ===== 支持与反馈 ===== */
.page-contact__support {
  padding: 64px 20px;
  background: linear-gradient(180deg, #ffffff 0%, var(--si-bg) 100%);
}

@media (min-width: 900px) {
  .page-contact__support {
    padding: 96px 28px;
  }
}

.page-contact__support-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

@media (min-width: 900px) {
  .page-contact__support-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
    gap: 60px;
  }
}

.page-contact__support-intro h2 {
  font-family: var(--si-heading-font);
  font-size: clamp(1.9rem, 4.6vw, 3rem);
  letter-spacing: 0.02em;
  color: var(--si-green-deep);
  margin: 0 0 16px;
}

.page-contact__support-intro p {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--si-ink-soft);
  margin-bottom: 24px;
  max-width: 46ch;
}

.page-contact__support-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

.page-contact__text-link {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--si-green-dark);
  text-decoration: none;
  border-bottom: 2px solid var(--si-gold);
  padding-bottom: 2px;
  transition: opacity 0.25s var(--si-ease);
}

.page-contact__text-link:hover {
  opacity: 0.7;
}

.page-contact__support-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

@media (min-width: 640px) {
  .page-contact__support-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact__support-item {
  position: relative;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid var(--si-border);
  padding: 22px 20px 20px;
  transition: transform 0.3s var(--si-ease), box-shadow 0.3s var(--si-ease);
}

@media (hover: hover) {
  .page-contact__support-item:hover {
    transform: translateY(-4px) rotate(-0.4deg);
    box-shadow: 0 16px 36px rgba(13, 52, 16, 0.08);
  }
}

.page-contact__support-tag {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  margin-bottom: 14px;
  background: var(--si-bg);
  border: 1px solid var(--si-border);
  border-left: 3px solid var(--si-green-dark);
}

.page-contact__support-item--blue .page-contact__support-tag {
  border-left-color: var(--si-summer);
  color: var(--pc-blue);
  background: var(--pc-summer-bg);
}

.page-contact__support-item--orange .page-contact__support-tag {
  border-left-color: var(--si-autumn);
  color: var(--pc-orange);
  background: var(--pc-autumn-bg);
}

.page-contact__support-item--pink .page-contact__support-tag {
  border-left-color: var(--si-spring);
  color: var(--pc-pink);
  background: var(--pc-spring-bg);
}

.page-contact__support-item--teal .page-contact__support-tag {
  border-left-color: var(--si-teal);
  color: var(--pc-teal);
  background: var(--pc-teal-bg);
}

.page-contact__support-item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--si-ink-soft);
}

/* ===== 回复承诺 ===== */
.page-contact__promise {
  padding: 64px 20px;
  background: var(--si-green-deep);
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.page-contact__promise::before {
  content: '';
  position: absolute;
  right: -8%;
  top: -20%;
  width: 60%;
  height: 140%;
  background-image: repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.03) 0 12px, transparent 12px 24px);
  pointer-events: none;
}

@media (min-width: 900px) {
  .page-contact__promise {
    padding: 88px 28px;
  }
}

.page-contact__promise-card {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
}

@media (min-width: 900px) {
  .page-contact__promise-card {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
    gap: 56px;
  }
}

.page-contact__promise-text .si-section-index {
  color: var(--pc-gold-light);
}

.page-contact__promise-text h2 {
  font-family: var(--si-heading-font);
  font-size: clamp(1.9rem, 4.8vw, 3.2rem);
  letter-spacing: 0.02em;
  color: var(--si-gold);
  margin: 0 0 20px;
}

.page-contact__promise-text p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
  margin: 0 0 12px;
  max-width: 62ch;
}

.page-contact__promise-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.page-contact__promise-stats div {
  padding: 20px 10px;
  text-align: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px dashed rgba(255, 255, 255, 0.24);
  border-top: 3px solid var(--si-gold);
}

.page-contact__promise-stats strong {
  display: block;
  font-family: var(--si-heading-font);
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  line-height: 1;
  color: #ffffff;
  margin-bottom: 8px;
}

.page-contact__promise-stats span {
  display: block;
  font-size: 0.74rem;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.66);
  letter-spacing: 0.04em;
}

/* ===== 底部法律与了解区块 ===== */
.page-contact__legal {
  padding: 56px 20px;
  background: var(--si-bg);
}

@media (min-width: 900px) {
  .page-contact__legal {
    padding: 72px 28px;
  }
}

.page-contact__legal .si-container {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

@media (min-width: 760px) {
  .page-contact__legal .si-container {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact__legal-item {
  border: 1px dashed var(--si-border);
  padding: 24px;
  background: rgba(255, 255, 255, 0.64);
}

.page-contact__legal-item h3 {
  font-family: var(--si-heading-font);
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--si-green-dark);
  margin: 0 0 8px;
}

.page-contact__legal-item p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--si-ink-soft);
  margin: 0 0 14px;
}

.page-contact__legal-item a {
  display: inline-block;
  margin-right: 18px;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--si-green-dark);
  text-decoration: none;
  border-bottom: 2px solid var(--si-gold);
  padding-bottom: 2px;
  transition: opacity 0.25s var(--si-ease);
}

.page-contact__legal-item a:hover {
  opacity: 0.7;
}

/* 移动端窄屏保护 */
@media (max-width: 480px) {
  .page-contact__channel {
    grid-template-columns: 44px 1fr;
    gap: 14px;
  }

  .page-contact__channel-icon {
    width: 44px;
    height: 44px;
  }

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

.page-contact {
  --si-white-soft: var(--si-ink-soft);
}