/* ==========================================================
   PAGE: 联系我们 / contact
   作用域：.page-contact
   ========================================================== */

.page-contact {
  --ct-shell-narrow: 880px;
  display: block;
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

/* ---------- 页首 ---------- */

.page-contact .ct-hero {
  position: relative;
  padding: clamp(24px, 4vw, 52px) 0 0;
  overflow: hidden;
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    115deg,
    rgba(47, 243, 208, 0.055) 0 1px,
    transparent 1px 10px
  );
  pointer-events: none;
}

.page-contact .ct-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  align-items: end;
}

.page-contact .breadcrumb {
  margin-bottom: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-contact .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--cyan);
}

.page-contact .breadcrumb__sep {
  margin: 0 8px;
  color: var(--line);
}

.page-contact .ct-hero__copy .idx {
  margin: 0 0 14px;
}

.page-contact .ct-hero__copy h1 {
  margin: 0 0 20px;
  letter-spacing: -0.01em;
}

.page-contact .ct-hero__lead {
  max-width: 56ch;
  margin: 0;
  font-size: clamp(16px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--paper);
}

.page-contact .ct-hero__visual {
  position: relative;
  margin: 0;
  background: var(--panel);
  border-top: var(--bd) solid var(--line);
  border-bottom: var(--bd) solid var(--line);
  clip-path: polygon(0 0, 100% 4%, 100% 100%, 0 94%);
}

.page-contact .ct-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.06);
}

/* ---------- 页首速览条 ---------- */

.page-contact .ct-quick {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--bd) solid var(--line);
}

.page-contact .ct-quick__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border-bottom: var(--bd) solid var(--line);
}

.page-contact .ct-quick__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .ct-quick__v {
  font-size: 16px;
  font-weight: 600;
  color: var(--cyan);
}

/* ---------- 章节索引 ---------- */

.page-contact .ct-index {
  margin-top: clamp(28px, 4vw, 40px);
  border-top: var(--bd) solid var(--line);
  border-bottom: var(--bd) solid var(--line);
  background: var(--ink-deep);
}

.page-contact .ct-index__list {
  display: flex;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-contact .ct-index__list::-webkit-scrollbar {
  display: none;
}

.page-contact .ct-index__list a {
  display: block;
  padding: 14px 18px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  white-space: nowrap;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 3px solid transparent;
  transition: color var(--t-fast) ease, border-color var(--t-fast) ease;
}

.page-contact .ct-index__list li:first-child a {
  padding-left: 0;
}

.page-contact .ct-index__list a:hover,
.page-contact .ct-index__list a:focus-visible,
.page-contact .ct-index__list a[aria-current="true"] {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 01 客服渠道 ---------- */

.page-contact .ct-channel__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 44px);
}

.page-contact .ct-channel__band .section__lead {
  margin-bottom: 28px;
}

.page-contact .ct-band {
  margin: 0;
  padding: 0;
}

.page-contact .ct-band__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 16px 0;
  border-bottom: var(--bd) solid var(--line);
}

.page-contact .ct-band__row:first-child {
  border-top: var(--bd) solid var(--line);
}

.page-contact .ct-band__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-contact .ct-band__val {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .ct-band__val--lg {
  font-family: var(--font-mono);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-color: rgba(47, 243, 208, 0.35);
  text-underline-offset: 5px;
}

.page-contact .ct-band__val .tag {
  margin-right: 8px;
}

/* 侧栏流程 */

.page-contact .ct-channel__side {
  padding-top: clamp(24px, 3vw, 32px);
  border-top: var(--bd) solid var(--line);
}

.page-contact .ct-channel__side-title {
  margin: 12px 0 22px;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .ct-flow {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: var(--bd) solid var(--line);
}

.page-contact .ct-flow__step {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0 14px 18px;
}

.page-contact .ct-flow__step + .ct-flow__step {
  border-top: 1px dashed var(--line);
}

.page-contact .ct-flow__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-contact .ct-flow__text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
}

.page-contact .ct-channel__side-note {
  margin: 22px 0 0;
  padding: 14px 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  background: var(--panel);
  border-left: 4px solid var(--amber);
}

/* ---------- 02 咨询准备 ---------- */

.page-contact .ct-prepare .section__head {
  max-width: 68ch;
  margin-bottom: clamp(24px, 3vw, 34px);
}

.page-contact .ct-prepare__figure {
  margin: 0 0 clamp(28px, 4vw, 40px);
  border: var(--bd) solid var(--line);
  background: var(--panel);
}

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

.page-contact .ct-prepare__figure .figure__caption {
  padding: 12px 16px;
  border-top: var(--bd) solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-contact .ct-tabs__list {
  display: flex;
  flex-wrap: nowrap;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
  border-top: var(--bd) solid var(--line);
  border-bottom: var(--bd) solid var(--line);
  background: var(--panel);
}

.page-contact .ct-tabs__list::-webkit-scrollbar {
  display: none;
}

.page-contact .ct-tabs__list .tabs__tab {
  flex: 0 0 auto;
  padding: 16px 20px 13px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  transition: color var(--t-fast) ease, border-color var(--t-fast) ease, background var(--t-fast) ease;
}

.page-contact .ct-tabs__list .tabs__tab:hover,
.page-contact .ct-tabs__list .tabs__tab:focus-visible {
  color: var(--paper);
  background: rgba(47, 243, 208, 0.06);
}

.page-contact .ct-tabs__list .tabs__tab[aria-selected="true"] {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .ct-tabs__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 36px);
  padding: clamp(24px, 3vw, 34px) 0 0;
}

.page-contact .ct-tabs__panel[hidden] {
  display: none;
}

.page-contact .ct-tabs__sub {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

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

.page-contact .ct-checklist li {
  position: relative;
  padding: 10px 0 10px 22px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
  border-bottom: 1px dashed var(--line);
}

.page-contact .ct-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 8px;
  height: 8px;
  background: var(--cyan);
}

.page-contact .ct-tabs__path {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--paper);
}

.page-contact .ct-tabs__link {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .ct-tabs__link a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 03 合作横带 ---------- */

.page-contact .ct-coop {
  position: relative;
  margin: clamp(40px, 6vw, 76px) 0;
  padding: clamp(34px, 5vw, 60px) 0;
  background: var(--panel);
  border-top: var(--bd) solid var(--line);
  border-bottom: var(--bd) solid var(--line);
  border-left: 8px solid var(--flare);
  clip-path: polygon(0 0, 100% 0, 97% 100%, 0 100%);
}

.page-contact .ct-coop__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  padding-right: clamp(10px, 3vw, 42px);
}

.page-contact .ct-coop__main .idx {
  margin-bottom: 14px;
}

.page-contact .ct-coop__main h2 {
  margin: 0 0 18px;
  color: var(--paper);
}

.page-contact .ct-coop__lead {
  margin: 0;
  max-width: 50ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .ct-coop__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--bd) solid var(--line);
}

.page-contact .ct-coop__item {
  padding: 16px 0;
  border-bottom: var(--bd) solid var(--line);
}

.page-contact .ct-coop__tag {
  display: inline-block;
  margin-bottom: 8px;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: var(--flare);
}

.page-contact .ct-coop__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
}

.page-contact .ct-coop__foot {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  border-top: 2px solid var(--line);
}

/* ---------- 04 站点基本信息 ---------- */

.page-contact .ct-facts__inner {
  max-width: var(--ct-shell-narrow);
}

.page-contact .ct-facts .section__lead {
  margin-bottom: clamp(22px, 3vw, 30px);
}

.page-contact .ct-facts__table {
  width: 100%;
  border: var(--bd) solid var(--line);
  border-collapse: collapse;
  background: var(--ink-deep);
}

.page-contact .ct-facts__caption {
  padding: 0 0 12px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-contact .ct-facts__table th,
.page-contact .ct-facts__table td {
  padding: 14px 16px;
  font-size: 15px;
  line-height: 1.6;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  overflow-wrap: anywhere;
}

.page-contact .ct-facts__table tr:last-child th,
.page-contact .ct-facts__table tr:last-child td {
  border-bottom: 0;
}

.page-contact .ct-facts__table th {
  width: 34%;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--cyan);
  background: var(--panel);
  border-right: var(--bd) solid var(--line);
}

.page-contact .ct-facts__table td {
  color: var(--paper);
}

.page-contact .ct-facts__table .num {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.page-contact .ct-facts__note {
  margin: 20px 0 0;
  padding-left: 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  border-left: 4px solid var(--cyan);
}

.page-contact .ct-facts__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 桌面端 ---------- */

@media (min-width: 720px) {
  .page-contact .ct-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-quick__item {
    padding: 20px 24px 20px 0;
    border-bottom: var(--bd) solid var(--line);
  }

  .page-contact .ct-quick__item + .ct-quick__item {
    padding-left: 26px;
    border-left: var(--bd) solid var(--line);
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(36px, 4vw, 56px);
  }

  .page-contact .ct-hero__visual {
    clip-path: polygon(0 5%, 100% 0, 100% 100%, 0 95%);
  }

  .page-contact .ct-tabs__panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(28px, 3vw, 48px);
  }

  .page-contact .ct-coop__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-contact .ct-coop__main {
    position: sticky;
    top: 96px;
    align-self: start;
  }
}

@media (min-width: 960px) {
  .page-contact .ct-channel__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 0;
  }

  .page-contact .ct-channel__band {
    padding-right: clamp(30px, 3.5vw, 52px);
  }

  .page-contact .ct-channel__side {
    padding-top: 0;
    padding-left: clamp(30px, 3.5vw, 52px);
    border-top: 0;
    border-left: var(--bd) solid var(--cyan);
  }
}

@media (min-width: 1100px) {
  .page-contact .ct-index__list a {
    padding-left: 22px;
    padding-right: 22px;
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-index__list a,
  .page-contact .ct-tabs__list .tabs__tab {
    transition: none;
  }
}