/* ===== 联系我们 · 页面专属样式（作用域：.page-contact） ===== */
.page-contact {
  --pc-radius: var(--radius-lg);
  --pc-gap: clamp(16px, 2vw, 24px);
  display: block;
  overflow-x: clip;
  color: var(--paper);
}

/* 视觉隐藏的小标题（用于区块语义） */
.page-contact .visually-hidden-title {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.page-contact .c-block {
  position: relative;
  padding-block: clamp(44px, 6.5vw, 92px);
}

/* ---------- 首屏 ---------- */
.page-contact .opening {
  position: relative;
  display: grid;
  gap: 14px;
  padding: clamp(22px, 4vw, 48px) 0 clamp(18px, 3vw, 36px);
}

.page-contact .opening::before {
  content: "";
  position: absolute;
  top: -12%;
  right: -10%;
  width: min(62vw, 400px);
  height: 68%;
  background: linear-gradient(112deg, var(--orange) 0%, var(--red) 100%);
  opacity: 0.14;
  border-radius: var(--pc-radius);
  transform: skewY(-7deg);
  pointer-events: none;
}

.page-contact .opening > * {
  position: relative;
}

.page-contact .page-opening__index {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--orange);
  margin: 0;
}

.page-contact .page-opening__title {
  margin: 0;
  font-size: clamp(30px, 6.4vw, 62px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.025em;
  max-width: 16em;
}

.page-contact .page-opening__lead {
  margin: 0;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.85;
  color: var(--muted);
  max-width: 40em;
}

@media (min-width: 900px) {
  .page-contact .opening {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    grid-template-areas:
      "idx idx"
      "title lead";
    column-gap: clamp(32px, 4vw, 64px);
    align-items: end;
    padding-bottom: clamp(28px, 4vw, 56px);
  }
  .page-contact .opening .page-opening__index { grid-area: idx; }
  .page-contact .opening .page-opening__title { grid-area: title; }
  .page-contact .opening .page-opening__lead { grid-area: lead; }
}

/* ---------- 双栏：左窄右宽 ---------- */
.page-contact .deck {
  display: grid;
  gap: clamp(26px, 3.4vw, 44px);
}

@media (min-width: 960px) {
  .page-contact .deck {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }
}

/* 左栏：等宽标签式问题入口 */
.page-contact .rail {
  position: relative;
  padding-top: 18px;
  border-top: 2px solid var(--orange);
}

.page-contact .rail__title {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

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

.page-contact .rail__list .index-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: var(--ink-2);
  border: 1px solid transparent;
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease),
    transform 0.25s var(--ease);
}

.page-contact .rail__list .index-link:hover,
.page-contact .rail__list .index-link:focus-visible {
  border-color: var(--orange);
  background: #1D1E23;
  transform: translateX(3px);
}

.page-contact .rail__list .index-list__num {
  font-size: 12px;
  color: var(--orange);
  letter-spacing: 0.06em;
}

.page-contact .rail__list .index-list__label {
  font-size: 15px;
  line-height: 1.5;
}

.page-contact .rail__list .index-list__meta {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-contact .rail__sla {
  margin-top: 20px;
  padding: 22px 20px;
  border-radius: var(--pc-radius);
  background: linear-gradient(142deg, rgba(255, 90, 31, 0.2) 0%, rgba(216, 30, 40, 0.06) 100%);
  border: 1px solid rgba(255, 90, 31, 0.36);
}

.page-contact .rail__sla-num {
  margin: 0 0 8px;
  font-size: clamp(28px, 6vw, 38px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--orange);
}

.page-contact .rail__sla-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper);
  opacity: 0.82;
}

/* 右栏 */
.page-contact .deck__main {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .contact-visual {
  margin: 0;
  border-radius: var(--pc-radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-contact .contact-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1400 / 800;
  object-fit: cover;
}

.page-contact .img-frame__caption {
  display: block;
  padding: 10px 16px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
  background: var(--ink-2);
  border-top: 1px solid var(--line);
}

/* 联系信息卡 */
.page-contact .contact-cards {
  display: grid;
  gap: 14px;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

@media (min-width: 680px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .contact-card--address {
    grid-column: 1 / -1;
  }
}

.page-contact .contact-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 22px 20px;
  border-radius: var(--pc-radius);
  background: var(--ink-2);
  border: 1px solid var(--line);
  transition: border-color 0.25s var(--ease);
}

.page-contact .contact-card:hover {
  border-color: rgba(255, 90, 31, 0.55);
}

.page-contact .contact-card--mail {
  background: linear-gradient(160deg, rgba(255, 90, 31, 0.12) 0%, var(--ink-2) 62%);
  border-color: rgba(255, 90, 31, 0.34);
}

.page-contact .contact-card__key {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-contact .contact-card__value {
  margin: 0;
  font-size: clamp(16px, 2.2vw, 20px);
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .contact-card__value--text {
  font-size: clamp(15px, 1.9vw, 17px);
  line-height: 1.7;
}

.page-contact .contact-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .contact-card .copy-btn {
  align-self: flex-start;
  margin-top: 4px;
}

/* ---------- 问题分类 ---------- */
.page-contact .ask__lead,
.page-contact .flow__lead {
  max-width: 46em;
  color: var(--muted);
}

.page-contact .ask__group {
  margin: clamp(24px, 3vw, 36px) 0 16px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  text-transform: uppercase;
}

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

@media (min-width: 820px) {
  .page-contact .ask__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .ask-card {
  position: relative;
  padding: 26px 24px 22px;
  border-radius: var(--pc-radius);
  background: var(--ink-2);
  border: 1px solid var(--line);
  overflow: hidden;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-contact .ask-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 64px;
  height: 3px;
  background: var(--orange);
}

.page-contact .ask-card__num {
  position: absolute;
  top: 12px;
  right: 18px;
  font-size: 46px;
  line-height: 1;
  letter-spacing: -0.05em;
  color: rgba(255, 90, 31, 0.2);
  pointer-events: none;
}

.page-contact .ask-card__title {
  margin: 0 0 10px;
  padding-right: 56px;
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.4;
  font-weight: 700;
}

.page-contact .ask-card__body {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--paper);
  opacity: 0.84;
}

.page-contact .ask-card__hint {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* 斜向赛道分隔线 */
.page-contact .slant-divider {
  height: 2px;
  margin: clamp(34px, 5vw, 64px) 0 clamp(18px, 2.4vw, 28px);
  border-radius: 2px;
  background: linear-gradient(
    90deg,
    var(--line) 0%,
    var(--line) 34%,
    var(--orange) 58%,
    var(--red) 74%,
    var(--line) 100%
  );
  transform: skewY(-1.4deg);
  transform-origin: left center;
}

/* ---------- 处理流程 ---------- */
.page-contact .flow__list {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 26px;
}

.page-contact .flow__step {
  position: relative;
  padding-left: 66px;
  min-height: 46px;
}

.page-contact .flow__step-num {
  position: absolute;
  left: 0;
  top: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: var(--radius-pill);
  background: var(--ink);
  border: 1px solid var(--orange);
  color: var(--orange);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-contact .flow__list::before {
  content: "";
  position: absolute;
  left: 23px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--orange) 0%, var(--line) 72%, var(--line) 100%);
}

.page-contact .flow__step-title {
  margin: 4px 0 8px;
  font-size: 17px;
  line-height: 1.4;
  font-weight: 700;
}

.page-contact .flow__step-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.82;
  color: var(--muted);
  max-width: 30em;
}

@media (min-width: 780px) {
  .page-contact .flow__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
    margin-top: 28px;
  }
  .page-contact .flow__step {
    padding-left: 0;
    min-height: 0;
  }
  .page-contact .flow__step-num {
    position: relative;
    margin-bottom: 16px;
  }
  .page-contact .flow__list::before {
    left: 0;
    right: 0;
    top: 23px;
    bottom: auto;
    width: auto;
    height: 1px;
    background: linear-gradient(
      90deg,
      var(--orange) 0%,
      var(--line) 46%,
      var(--line) 100%
    );
  }
}

/* ---------- 提交前准备 ---------- */
.page-contact .prep__grid {
  display: grid;
  gap: clamp(26px, 3.4vw, 48px);
}

@media (min-width: 900px) {
  .page-contact .prep__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
}

.page-contact .prep__intro .section-title {
  margin-bottom: 14px;
}

.page-contact .prep__intro .lead {
  margin-bottom: 24px;
  color: var(--muted);
  max-width: 34em;
}

.page-contact .prep__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
  counter-reset: prepc;
}

.page-contact .prep__item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  transition: border-left-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-contact .prep__item:hover {
  border-left-color: var(--orange);
  transform: translateX(3px);
}

.page-contact .prep__num {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--green);
  padding-top: 3px;
}

.page-contact .prep__name {
  margin: 0 0 6px;
  font-size: 16px;
  line-height: 1.45;
  font-weight: 700;
}

.page-contact .prep__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 尾部 ---------- */
.page-contact .outro__grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 48px);
  align-items: center;
}

@media (min-width: 900px) {
  .page-contact .outro__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

.page-contact .outro__text .section-title {
  margin-bottom: 14px;
}

.page-contact .outro__text .lead {
  margin-bottom: 26px;
  color: var(--muted);
  max-width: 36em;
}

.page-contact .outro__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .outro__visual {
  margin: 0;
  border-radius: var(--pc-radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-contact .outro__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 800;
  object-fit: cover;
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .rail__list .index-link,
  .page-contact .contact-card,
  .page-contact .prep__item {
    transition: none;
  }
  .page-contact .rail__list .index-link:hover,
  .page-contact .rail__list .index-link:focus-visible,
  .page-contact .prep__item:hover {
    transform: none;
  }
}