/* ===== 页面作用域：联系我们 ===== */
.page-contact {
  --pc-panel: rgba(10, 42, 74, .5);
  --pc-stroke: rgba(30, 58, 92, .95);
  --pc-gap: clamp(16px, 3vw, 28px);
  background: var(--ink-0);
  color: var(--text);
}

.page-contact .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-block: clamp(16px, 4vw, 26px) 0;
  font-size: 13px;
  color: var(--text-3);
}

.page-contact .breadcrumbs a {
  color: var(--text-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

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

.page-contact [id] {
  scroll-margin-top: 104px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--coral), var(--cyan));
  transform: skewY(-1.1deg);
  transform-origin: left bottom;
}

.page-contact .contact-hero-inner {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  padding-block: clamp(24px, 5vw, 48px) clamp(64px, 10vw, 112px);
}

.page-contact .contact-hero-copy .eyebrow {
  margin-bottom: 14px;
}

.page-contact .contact-hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(32px, 6.4vw, 58px);
  line-height: 1.06;
  letter-spacing: -.01em;
  margin: 0 0 20px;
  max-width: 15ch;
}

.page-contact .contact-hero-copy .lead {
  max-width: 46ch;
  color: var(--text-2);
  font-size: clamp(16px, 2.4vw, 18px);
  line-height: 1.75;
  margin: 0 0 28px;
}

.page-contact .contact-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .contact-hero-media {
  margin: 0;
  position: relative;
}

.page-contact .contact-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  border: 1px solid var(--pc-stroke);
  border-radius: var(--r-0);
  filter: saturate(.9) brightness(.92);
}

.page-contact .contact-hero-media::before {
  content: "";
  position: absolute;
  inset: auto -1px -1px auto;
  width: 42%;
  height: 42%;
  background: linear-gradient(315deg, rgba(64, 240, 208, .22), transparent 70%);
  pointer-events: none;
}

/* ---------- 章节头部 ---------- */
.page-contact .contact-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 3vw, 26px);
  align-items: start;
  margin-bottom: clamp(30px, 5vw, 52px);
}

.page-contact .contact-head-body h2 {
  margin: 0 0 10px;
}

.page-contact .contact-head-body .muted {
  margin: 0;
  max-width: 56ch;
  line-height: 1.7;
}

/* ---------- 01 联系渠道 ---------- */
.page-contact .contact-channel-grid {
  align-items: start;
}

.page-contact .contact-stack {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .contact-card {
  position: relative;
  padding: clamp(20px, 3.4vw, 30px);
  background: var(--pc-panel);
  border: 1px solid var(--pc-stroke);
  border-radius: var(--r-0);
  box-shadow: var(--shadow-card);
  transition: transform .25s ease, border-color .25s ease;
}

.page-contact .contact-card:nth-child(2) {
  transform: translateX(clamp(8px, 2vw, 20px));
}

.page-contact .contact-card:nth-child(3) {
  transform: translateX(clamp(4px, 1vw, 10px));
}

.page-contact .contact-card:hover {
  transform: translateX(0);
  border-color: var(--cyan);
}

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

.page-contact .contact-card .tag {
  margin-bottom: 14px;
}

.page-contact .contact-value {
  font-size: clamp(15px, 3.1vw, 19px);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--text);
  margin: 0 0 10px;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .contact-value--plain {
  font-family: var(--font-body);
  font-weight: 600;
  line-height: 1.5;
}

.page-contact .contact-card-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-2);
  max-width: 44ch;
}

.page-contact .contact-pick {
  padding: clamp(20px, 3.4vw, 28px);
  border: 1px solid var(--pc-stroke);
  border-top: 2px solid var(--cyan);
  border-radius: var(--r-0);
  background: linear-gradient(160deg, rgba(18, 70, 111, .45), rgba(4, 16, 31, .2));
}

.page-contact .contact-pick-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 18px;
  color: var(--cyan);
}

.page-contact .pick-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .pick-list li {
  display: grid;
  gap: 5px;
  padding-left: 16px;
  border-left: 1px solid var(--line);
}

.page-contact .pick-key {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
}

.page-contact .pick-val {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-2);
}

.page-contact .pick-val a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(64, 240, 208, .4);
}

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

/* ---------- 02 反馈材料 ---------- */
.page-contact .contact-materials {
  background: linear-gradient(180deg, rgba(10, 42, 74, .8), rgba(4, 16, 31, .95));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-material-grid {
  align-items: start;
}

.page-contact .material-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  counter-reset: mat;
}

.page-contact .material-item {
  position: relative;
  padding: 18px 0 18px 42px;
  border-bottom: 1px dashed var(--line);
}

.page-contact .material-item:first-child {
  padding-top: 0;
}

.page-contact .material-item:last-child {
  border-bottom: 0;
}

.page-contact .material-item::before {
  counter-increment: mat;
  content: counter(mat, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--cyan);
}

.page-contact .material-item:first-child::before {
  top: 0;
}

.page-contact .material-item h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--text);
}

.page-contact .material-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-2);
  max-width: 52ch;
}

.page-contact .contact-material-figure {
  margin: 0;
  padding: clamp(14px, 2.4vw, 20px);
  border: 1px solid var(--pc-stroke);
  border-radius: var(--r-0);
  background: rgba(4, 16, 31, .6);
}

.page-contact .contact-material-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
  border-radius: var(--r-0);
}

.page-contact .contact-material-figure figcaption {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-3);
}

/* ---------- 03 自助解决 ---------- */
.page-contact .selfhelp-grid {
  gap: var(--pc-gap);
}

.page-contact .selfhelp-grid .fold {
  border-left: 2px solid var(--line);
  transition: border-color .25s ease;
}

.page-contact .selfhelp-grid .fold[open] {
  border-left-color: var(--cyan);
}

.page-contact .selfhelp-grid .fold-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-2);
}

.page-contact .selfhelp-more {
  margin: clamp(26px, 4vw, 40px) 0 0;
}

/* ---------- 04 合作 ---------- */
.page-contact .partner-grid {
  gap: var(--pc-gap);
}

.page-contact .partner-grid .card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-contact .partner-grid .card-text {
  flex: 1;
}

.page-contact .partner-note {
  margin: clamp(28px, 4.6vw, 44px) 0 0;
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--pc-stroke);
  border-left: 2px solid var(--coral);
  border-radius: var(--r-0);
  background: rgba(4, 16, 31, .55);
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-2);
  max-width: 78ch;
}

.page-contact .partner-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(64, 240, 208, .4);
}

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

/* ---------- 05 流程 ---------- */
.page-contact .flow-grid {
  align-items: start;
}

.page-contact .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .flow-step {
  position: relative;
  padding-left: 60px;
  padding-bottom: clamp(26px, 4vw, 38px);
}

.page-contact .flow-step:last-child {
  padding-bottom: 0;
}

.page-contact .flow-step::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 50px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), rgba(64, 240, 208, 0));
}

.page-contact .flow-step:last-child::before {
  content: none;
}

.page-contact .flow-num {
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-0);
  background: var(--cyan);
  border-radius: var(--r-0);
}

.page-contact .flow-step h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 8px;
  padding-top: 6px;
  color: var(--text);
}

.page-contact .flow-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-2);
  max-width: 54ch;
}

.page-contact .flow-aside {
  padding: clamp(20px, 3.4vw, 28px);
  border: 1px solid var(--pc-stroke);
  border-top: 2px solid var(--coral);
  border-radius: var(--r-0);
  background: rgba(10, 42, 74, .45);
}

.page-contact .flow-aside h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 16px;
  color: var(--coral);
}

.page-contact .flow-aside p {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-2);
}

.page-contact .flow-aside-mail {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

/* ---------- 收口 ---------- */
.page-contact .contact-outro {
  position: relative;
  margin-top: clamp(40px, 8vw, 80px);
  background: linear-gradient(135deg, var(--ink-1), var(--ink-2));
  clip-path: polygon(0 38px, 100% 0, 100% 100%, 0 100%);
  padding-block: clamp(68px, 11vw, 112px) clamp(48px, 8vw, 72px);
}

.page-contact .contact-outro-inner {
  display: grid;
  gap: clamp(20px, 3.4vw, 32px);
  align-items: center;
}

.page-contact .contact-outro-text {
  margin: 0;
  font-size: clamp(16px, 2.4vw, 19px);
  line-height: 1.8;
  color: var(--text);
  max-width: 62ch;
}

.page-contact .contact-outro-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-hero-inner {
    grid-template-columns: 7fr 5fr;
    align-items: center;
  }

  .page-contact .contact-channel-grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-contact .contact-material-grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-contact .flow-grid {
    grid-template-columns: 8fr 4fr;
  }

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

@media (max-width: 899px) {
  .page-contact .contact-card:nth-child(2),
  .page-contact .contact-card:nth-child(3) {
    transform: none;
  }

  .page-contact .contact-hero-media {
    order: -1;
  }

  .page-contact .flow-aside {
    margin-top: 8px;
  }
}

@media (max-width: 560px) {
  .page-contact .contact-head {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

  .page-contact .contact-hero-actions .btn {
    flex: 1 1 100%;
    text-align: center;
  }

  .page-contact .flow-step {
    padding-left: 50px;
  }

  .page-contact .flow-num {
    width: 34px;
    height: 34px;
    font-size: 13px;
  }

  .page-contact .flow-step::before {
    left: 16px;
    top: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .selfhelp-grid .fold {
    transition: none;
  }

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