.page-contact {
  --c-pad: clamp(56px, 7vw, 96px);
  --c-gap: clamp(22px, 3vw, 40px);
  background: var(--field);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-contact a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .eyebrow {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: calc(var(--header-total) + 32px) 0 var(--c-pad);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(47, 227, 192, 0.18), transparent 58%),
    linear-gradient(150deg, var(--night) 0%, var(--field) 46%, var(--panel) 100%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -34%;
  width: min(760px, 80%);
  height: 76%;
  background: linear-gradient(150deg, rgba(31, 122, 82, 0.46), rgba(47, 227, 192, 0.05));
  clip-path: polygon(26% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-contact .crumbs-list {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 clamp(26px, 4vw, 46px);
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-contact .crumbs-list a {
  color: var(--mist);
  text-decoration: none;
  transition: color 160ms ease;
}

.page-contact .crumbs-list a:hover {
  color: var(--cyan);
}

.page-contact .crumb-current {
  color: var(--cyan);
}

.page-contact .contact-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--c-gap);
  align-items: start;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.022em;
  color: var(--paper);
}

.page-contact .contact-lead {
  margin: clamp(20px, 3vw, 30px) 0 0;
  max-width: 48ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(243, 246, 241, 0.78);
}

.page-contact .contact-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .contact-hero-aside {
  padding: clamp(22px, 3vw, 30px);
  border-top: 3px solid var(--cyan);
}

.page-contact .aside-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .aside-note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .aside-links {
  display: grid;
  gap: 1px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-contact .aside-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  background: rgba(6, 27, 19, 0.74);
  color: var(--paper);
  font-size: 14px;
  text-decoration: none;
  transition: background 160ms ease, color 160ms ease;
}

.page-contact .aside-links a:hover {
  background: rgba(47, 227, 192, 0.14);
  color: var(--cyan);
}

/* ---------- 通用区块头 ---------- */
.page-contact .contact-channels,
.page-contact .contact-coop,
.page-contact .contact-process {
  padding: var(--c-pad) 0;
  background: var(--field);
}

.page-contact .contact-head {
  max-width: 64ch;
}

.page-contact .contact-head h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.016em;
  color: var(--paper);
}

.page-contact .contact-head-note {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--mist);
}

/* ---------- 三条通道 ---------- */
.page-contact .contact-channels-grid {
  display: grid;
  gap: var(--c-gap);
  margin-top: clamp(30px, 4.5vw, 52px);
}

.page-contact .channel-shot {
  position: relative;
  margin: 0;
  background: var(--panel);
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .channel-shot::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 27, 19, 0.08) 0%, rgba(6, 27, 19, 0.66) 100%);
  pointer-events: none;
}

.page-contact .channel-shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
  filter: saturate(0.74) contrast(1.05);
}

.page-contact .channel-cards {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-contact .channel-card {
  padding: clamp(20px, 2.6vw, 30px);
  background: linear-gradient(180deg, rgba(18, 58, 44, 0.94), rgba(10, 42, 30, 0.94));
  border-left: 2px solid transparent;
  transition: border-color 180ms ease, transform 180ms ease;
}

.page-contact .channel-index {
  display: inline-block;
  padding: 3px 9px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.page-contact .channel-name {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  color: var(--paper);
}

.page-contact .channel-value {
  margin: 10px 0 0;
  font-family: var(--font-data);
  font-size: clamp(15px, 2vw, 18px);
  letter-spacing: 0.01em;
  color: var(--yellow);
  word-break: break-word;
}

.page-contact .channel-value--plain {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.6;
}

.page-contact .channel-for {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 数据校订与反馈（纸张区） ---------- */
.page-contact .contact-feedback {
  padding: var(--c-pad) 0;
  background: linear-gradient(180deg, rgba(31, 122, 82, 0.16), rgba(31, 122, 82, 0)) , var(--paper);
  color: var(--ink);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-feedback .eyebrow {
  color: var(--grass);
}

.page-contact .contact-feedback h2 {
  margin: 12px 0 0;
  max-width: 24ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.016em;
  color: var(--ink);
}

.page-contact .contact-feedback-grid {
  display: grid;
  gap: var(--c-gap);
}

.page-contact .feedback-intro {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.82;
  color: rgba(11, 15, 13, 0.72);
}

.page-contact .checklist {
  display: grid;
  gap: 12px;
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .checklist-item {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.72);
  border-left: 3px solid var(--grass);
  box-shadow: 0 12px 30px -26px rgba(11, 15, 13, 0.8);
}

.page-contact .checklist-key {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
}

.page-contact .checklist-desc {
  font-size: 14px;
  line-height: 1.72;
  color: rgba(11, 15, 13, 0.7);
}

.page-contact .feedback-tip {
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding-left: 14px;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(11, 15, 13, 0.78);
  border-left: 2px solid var(--orange);
}

.page-contact .feedback-shot {
  margin: 0;
}

.page-contact .feedback-shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 43 / 30;
  object-fit: cover;
  border: 1px solid rgba(11, 15, 13, 0.14);
  filter: saturate(0.82);
}

.page-contact .feedback-shot .media-caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.72;
  color: rgba(11, 15, 13, 0.62);
}

/* ---------- 商务与媒体合作 ---------- */
.page-contact .coop-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(30px, 4.5vw, 52px);
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-contact .coop-card {
  display: flex;
  flex-direction: column;
  padding: clamp(22px, 2.8vw, 32px);
  background: var(--panel);
  transition: background 180ms ease;
}

.page-contact .coop-tag {
  align-self: flex-start;
  padding: 4px 10px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--night);
  background: var(--cyan);
  border-radius: var(--radius);
}

.page-contact .coop-tag--warm {
  background: var(--orange);
}

.page-contact .coop-tag--yellow {
  background: var(--yellow);
}

.page-contact .coop-card h3 {
  margin: 18px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .coop-card p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(243, 246, 241, 0.74);
}

.page-contact .coop-card .coop-need {
  margin-top: auto;
  padding-top: 18px;
  color: var(--mist);
  border-top: 1px dashed var(--line);
}

/* ---------- 来访与邮寄 ---------- */
.page-contact .contact-visit {
  padding: var(--c-pad) 0;
  background: linear-gradient(180deg, var(--night), var(--field));
  border-top: 1px solid var(--line);
}

.page-contact .visit-grid {
  display: grid;
  gap: var(--c-gap);
}

.page-contact .visit-block h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 2.9vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.014em;
  color: var(--paper);
}

.page-contact .visit-block p {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.82;
  color: rgba(243, 246, 241, 0.74);
}

.page-contact .visit-address {
  margin: 20px 0 0;
  padding: 16px 18px;
  font-family: var(--font-data);
  font-size: clamp(15px, 1.8vw, 17px);
  letter-spacing: 0.01em;
  color: var(--yellow);
  background: rgba(6, 27, 19, 0.74);
  border: 1px solid var(--line-strong);
  border-left-width: 3px;
  border-radius: var(--radius);
}

.page-contact .visit-block--panel {
  padding: clamp(22px, 3vw, 32px);
  background: var(--panel);
  border-top: 2px solid var(--orange);
}

.page-contact .visit-block--panel h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--paper);
}

.page-contact .visit-list {
  display: grid;
  gap: 14px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .visit-list li {
  font-size: 14px;
  line-height: 1.78;
  color: rgba(243, 246, 241, 0.76);
}

.page-contact .visit-list .num {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 8px;
  font-size: 12px;
  color: var(--night);
  background: var(--cyan);
  border-radius: var(--radius);
}

/* ---------- 处理流程 ---------- */
.page-contact .contact-process {
  border-top: 1px solid var(--line);
}

.page-contact .process-list {
  display: grid;
  margin: clamp(30px, 4.5vw, 52px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .process-item {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: clamp(16px, 2.5vw, 28px);
  padding-bottom: clamp(26px, 3.4vw, 38px);
}

.page-contact .process-item:last-child {
  padding-bottom: 0;
}

.page-contact .process-item::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 58px;
  bottom: 2px;
  width: 1px;
  background: linear-gradient(180deg, var(--line-strong), rgba(47, 227, 192, 0));
}

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

.page-contact .process-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  font-size: 16px;
  color: var(--night);
  background: var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% 76%, 74% 100%, 0 100%);
}

.page-contact .process-body h3 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--paper);
}

.page-contact .process-body p {
  margin: 10px 0 0;
  max-width: 64ch;
  font-size: 14px;
  line-height: 1.82;
  color: rgba(243, 246, 241, 0.74);
}

/* ---------- 底部备案条 ---------- */
.page-contact .contact-footstrip {
  background: var(--night);
  border-top: 1px solid var(--line);
}

.page-contact .footstrip-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 24px;
  padding: 20px 0;
}

.page-contact .footstrip-icp {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .footstrip-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .footstrip-links a {
  font-size: 13px;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 150ms ease, border-color 150ms ease;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .checklist-item {
    padding: 16px 18px;
  }
}

@media (min-width: 860px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-contact .visit-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-contact .channel-card:hover {
    border-left-color: var(--cyan);
    transform: translateX(4px);
  }
}

@media (min-width: 960px) {
  .page-contact .contact-feedback-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(36px, 5vw, 72px);
    align-items: start;
  }
}

@media (min-width: 1020px) {
  .page-contact .contact-channels-grid {
    grid-template-columns: minmax(0, 0.84fr) minmax(0, 1.16fr);
    align-items: start;
  }

  .page-contact .channel-shot {
    position: sticky;
    top: calc(var(--header-total) + 20px);
  }

  .page-contact .feedback-side {
    position: sticky;
    top: calc(var(--header-total) + 20px);
  }
}

@media (max-width: 520px) {
  .page-contact .process-item {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 14px;
  }

  .page-contact .process-num {
    width: 44px;
    height: 44px;
    font-size: 14px;
  }

  .page-contact .process-item::before {
    left: 21px;
    top: 48px;
  }
}

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