.page-contact {
  --pc-gap: clamp(1.6rem, 4.5vw, 3.6rem);
  --pc-lift: 26px;
}

.page-contact .breadcrumb {
  padding-top: 1.25rem;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding-top: clamp(1.6rem, 5vw, 3rem);
  padding-bottom: 0;
}

.page-contact .title-xl {
  font-family: var(--font-head);
  font-weight: 300;
  font-size: clamp(2.35rem, 10.5vw, 5.4rem);
  line-height: 1;
  letter-spacing: -0.015em;
  margin: 0.5rem 0 1.1rem;
  color: var(--white);
}

.page-contact .title-lg {
  font-family: var(--font-head);
  font-weight: 400;
  font-size: clamp(1.6rem, 4.6vw, 2.6rem);
  line-height: 1.18;
  letter-spacing: -0.008em;
  color: var(--white);
  margin: 0.4rem 0 0.9rem;
}

.page-contact .title-md {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  line-height: 1.3;
  color: var(--white);
  margin: 0 0 0.7rem;
}

.page-contact .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--green);
  margin: 0;
}

.page-contact .lede {
  font-size: clamp(0.95rem, 2.3vw, 1.08rem);
  line-height: 1.85;
  color: var(--mist);
  max-width: 64ch;
  margin: 0;
}

.page-contact .contact-hero__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.5rem;
  margin-top: 1.6rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
}

.page-contact .contact-hero__split {
  display: grid;
  gap: var(--pc-gap);
  margin-top: clamp(1.8rem, 5vw, 3.4rem);
  padding-bottom: clamp(2rem, 6vw, 4rem);
}

/* ---------- 事项索引 ---------- */

.page-contact .feedback-index {
  list-style: none;
  margin: 0.9rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.page-contact .feedback-index__item {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  align-items: baseline;
  gap: 0.2rem 0.6rem;
  padding: 1rem 0.2rem;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--white);
  transition: background-color 0.25s ease, padding-left 0.25s ease;
}

.page-contact .feedback-index__item:hover,
.page-contact .feedback-index__item:focus-visible {
  background: rgba(57, 255, 136, 0.07);
  padding-left: 0.8rem;
}

.page-contact .feedback-index__num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--green);
}

.page-contact .feedback-index__title {
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-contact .feedback-index__meta {
  grid-column: 2;
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 媒体 ---------- */

.page-contact .contact-hero__media,
.page-contact .partnership__media {
  margin: 0;
}

.page-contact .media__inner {
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

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

.page-contact .media__caption {
  display: block;
  margin-top: 0.7rem;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 联系通道 ---------- */

.page-contact .channel-grid {
  display: grid;
  gap: 1.1rem;
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: 1.5rem 1.35rem;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: linear-gradient(158deg, var(--glass-blue), rgba(11, 15, 18, 0.9) 72%);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-contact .channel-card:hover {
  border-color: rgba(57, 255, 136, 0.45);
  box-shadow: 0 0 0 1px rgba(57, 255, 136, 0.12);
}

.page-contact .channel-card__key {
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--blue);
  margin: 0;
}

.page-contact .channel-card__value {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 3.4vw, 1.3rem);
  line-height: 1.4;
  color: var(--white);
  word-break: break-all;
  margin: 0;
}

.page-contact .channel-card__note {
  flex: 1;
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .channel-card .copy-btn {
  align-self: flex-start;
}

/* ---------- 反馈分类标签 ---------- */

.page-contact .tabs {
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
}

.page-contact .tabs__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.page-contact .tab {
  appearance: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 0.88rem;
  line-height: 1.4;
  padding: 0.58rem 1.05rem;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-contact .tab:hover {
  color: var(--white);
  border-color: var(--line-strong);
}

.page-contact .tab[aria-selected="true"],
.page-contact .tab.is-active {
  color: var(--ink);
  background: var(--green);
  border-color: var(--green);
  font-weight: 600;
}

.page-contact .tabs__panels {
  margin-top: 1.6rem;
}

.page-contact .tab-panel[hidden] {
  display: none;
}

.page-contact .tab-panel + .tab-panel {
  margin-top: 1.5rem;
}

.page-contact .panel-row {
  display: grid;
  gap: 1.5rem;
  padding: 1.5rem clamp(1.1rem, 3vw, 2rem);
  border-left: 2px solid var(--green);
  background: var(--ink-2);
}

.page-contact .panel-row p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .panel-row .title-md {
  margin-bottom: 0.7rem;
}

.page-contact .check-list {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
}

.page-contact .check-list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .check-list li + li {
  margin-top: 0.25rem;
}

.page-contact .check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  background: var(--blue);
}

/* ---------- 合作与内容共建 ---------- */

.page-contact .partnership {
  display: grid;
  gap: var(--pc-gap);
  align-items: center;
}

.page-contact .partnership__body p {
  margin: 0 0 0.9rem;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--mist);
  max-width: 62ch;
}

.page-contact .stat-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  list-style: none;
  margin: 1.7rem 0 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .stat-row > li {
  background: var(--ink);
  padding: 1.05rem 1rem;
}

.page-contact .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 4vw, 1.85rem);
  line-height: 1.1;
  color: var(--green);
}

.page-contact .stat__label {
  display: block;
  margin-top: 0.4rem;
  font-size: 0.76rem;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 处理流程坐标 ---------- */

.page-contact .route {
  list-style: none;
  margin: clamp(1.6rem, 4vw, 2.4rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.page-contact .route__step {
  position: relative;
  padding: 1.3rem 1.1rem 1.3rem 1.3rem;
  border-top: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(30, 42, 50, 0.35), transparent 70%);
}

.page-contact .route__coord {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--orange);
  margin-bottom: 0.6rem;
}

.page-contact .route__title {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--white);
  margin: 0 0 0.5rem;
}

.page-contact .route__step p {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 业务沟通地址 ---------- */

.page-contact .address-block {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 4.5vw, 2.9rem);
  border: 1px solid var(--line-strong);
  background-color: var(--ink-2);
  background-image:
    linear-gradient(115deg, rgba(15, 42, 51, 0.78), rgba(11, 15, 18, 0.96) 78%),
    repeating-linear-gradient(115deg, rgba(230, 241, 245, 0.06) 0 1px, transparent 1px 34px);
}

.page-contact .address-block::after {
  content: "";
  position: absolute;
  left: -10%;
  right: -10%;
  bottom: -62%;
  height: 62%;
  background: radial-gradient(ellipse at center, rgba(57, 255, 136, 0.16), transparent 70%);
  pointer-events: none;
}

.page-contact .address-block .title-lg {
  position: relative;
}

.page-contact .address-block__text {
  position: relative;
  margin: 0.4rem 0 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--mist);
  max-width: 62ch;
}

.page-contact .address-meta {
  position: relative;
  display: grid;
  gap: 1px;
  margin: 1.7rem 0 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .address-meta > div {
  background: rgba(11, 15, 18, 0.84);
  padding: 1.05rem 1.1rem;
}

.page-contact .address-meta dt {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.55rem;
}

.page-contact .address-meta dd {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--white);
  word-break: break-word;
}

/* ---------- 后续入口 ---------- */

.page-contact .link-row {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .link-row a {
  display: block;
  padding: 1.05rem 1.15rem;
  background: var(--ink);
  color: var(--white);
  font-size: 0.93rem;
  text-decoration: none;
  transition: background-color 0.22s ease, padding-left 0.22s ease;
}

.page-contact .link-row a::after {
  content: " →";
  color: var(--green);
}

.page-contact .link-row a:hover,
.page-contact .link-row a:focus-visible {
  background: var(--ink-2);
  padding-left: 1.55rem;
}

/* ---------- 中等屏幕 ---------- */

@media (min-width: 720px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    margin-bottom: calc(var(--pc-lift) * 2);
  }

  .page-contact .channel-grid > :nth-child(2) {
    transform: translateY(var(--pc-lift));
  }

  .page-contact .channel-grid > :nth-child(3) {
    transform: translateY(calc(var(--pc-lift) * 2));
  }

  .page-contact .stat-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

/* ---------- 桌面 ---------- */

@media (min-width: 960px) {
  .page-contact .contact-hero__split {
    grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
    align-items: start;
  }

  .page-contact .panel-row {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 2.6rem;
    align-items: start;
  }

  .page-contact .partnership {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
  }

  .page-contact .route {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .route__step {
    border-top: 1px solid var(--line-strong);
    border-right: 1px solid var(--line);
    padding: 1.4rem 1.4rem 1.6rem;
  }

  .page-contact .route__step:last-child {
    border-right: 0;
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition: none !important;
    animation: none !important;
  }

  .page-contact .channel-grid > :nth-child(2),
  .page-contact .channel-grid > :nth-child(3) {
    transform: none;
  }

  .page-contact .channel-grid {
    margin-bottom: 0;
  }
}