/* ================= page-contact ================= */

.page-contact {
  --ct-hair: rgba(30, 92, 122, .85);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--c-ink);
  border-bottom: 1px solid var(--c-steel);
}

.page-contact .ct-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .ct-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  opacity: .34;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(102deg, rgba(6, 20, 38, .97) 0%, rgba(6, 20, 38, .88) 46%, rgba(6, 20, 38, .36) 100%),
    repeating-linear-gradient(102deg, rgba(22, 200, 216, .07) 0 1px, transparent 1px 72px);
}

.page-contact .ct-hero__inner {
  position: relative;
  z-index: 2;
  padding-top: 30px;
  padding-bottom: 44px;
}

.page-contact .ct-hero__eyebrow {
  margin: 20px 0 12px;
  font-size: var(--t-14);
  letter-spacing: .16em;
  color: var(--c-cyan);
}

.page-contact .ct-hero__title {
  margin: 0 0 16px;
  max-width: 22ch;
  font-family: var(--f-display);
  font-size: clamp(30px, 5.6vw, 54px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--c-paper);
}

.page-contact .ct-hero__lead {
  margin: 0 0 28px;
  max-width: 54ch;
  font-size: var(--t-17);
  line-height: 1.78;
  color: var(--c-muted);
}

.page-contact .ct-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  padding-top: 20px;
  border-top: 1px solid var(--ct-hair);
}

.page-contact .ct-fact {
  display: flex;
  align-items: baseline;
  gap: 9px;
}

.page-contact .ct-fact__num {
  font-family: var(--f-mono);
  font-size: var(--t-22);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--c-orange);
}

.page-contact .ct-fact__label {
  font-size: var(--t-14);
  color: var(--c-muted);
}

/* ---------- 路径 + 联系方式 双栏 ---------- */
.page-contact .ct-main__grid {
  display: grid;
  gap: 34px;
}

.page-contact .ct-paths {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-contact .ct-path {
  position: relative;
  padding: 24px 20px 20px;
  background: var(--c-panel);
  border: 1px solid var(--c-steel);
  clip-path: var(--cut-both);
  transition: border-color var(--ease), transform var(--ease);
}

.page-contact .ct-path::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 70px;
  height: 3px;
  background: var(--ct-accent, var(--c-cyan));
}

.page-contact .ct-path--coop { --ct-accent: var(--c-orange); }
.page-contact .ct-path--fix  { --ct-accent: var(--c-cyan); }
.page-contact .ct-path--use  { --ct-accent: var(--c-cyan-soft); }

.page-contact .ct-path:hover,
.page-contact .ct-path:focus-within {
  border-color: var(--ct-accent, var(--c-cyan));
  transform: translateY(-2px);
}

.page-contact .ct-path__tag {
  margin: 0 0 10px;
  font-size: var(--t-14);
  letter-spacing: .14em;
  color: var(--ct-accent, var(--c-cyan));
}

.page-contact .ct-path__title {
  margin: 0 0 10px;
  font-family: var(--f-display);
  font-size: var(--t-22);
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-paper);
}

.page-contact .ct-path__text {
  margin: 0;
  font-size: var(--t-17);
  line-height: 1.78;
  color: var(--c-muted);
}

.page-contact .ct-path__hint {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--ct-hair);
  font-size: var(--t-14);
  line-height: 1.72;
  color: var(--c-cyan-soft);
}

/* 联系长卡 */
.page-contact .ct-reach {
  padding: 26px 22px 24px;
  background: linear-gradient(158deg, var(--c-band) 0%, var(--c-panel) 56%, var(--c-ink) 100%);
  border: 1px solid var(--c-steel);
  clip-path: var(--cut-both);
}

.page-contact .ct-reach__kicker {
  margin: 0 0 8px;
  font-size: var(--t-14);
  letter-spacing: .16em;
  color: var(--c-cyan);
}

.page-contact .ct-reach__title {
  margin: 0 0 18px;
  font-family: var(--f-display);
  font-size: var(--t-30);
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-paper);
}

.page-contact .ct-reach__list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ct-hair);
}

.page-contact .ct-reach__row {
  padding: 14px 0;
  border-bottom: 1px dashed var(--ct-hair);
}

.page-contact .ct-reach__key {
  margin: 0 0 6px;
  font-size: var(--t-14);
  letter-spacing: .1em;
  color: var(--c-muted);
}

.page-contact .ct-reach__val {
  margin: 0;
  font-size: var(--t-17);
  line-height: 1.68;
  color: var(--c-paper);
  overflow-wrap: anywhere;
}

.page-contact .ct-reach__val--mail {
  font-family: var(--f-mono);
  font-size: clamp(15px, 2.3vw, 19px);
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--c-orange);
  user-select: all;
}

.page-contact .ct-reach__note {
  margin: 18px 0 0;
  font-size: var(--t-14);
  line-height: 1.78;
  color: var(--c-muted);
}

/* ---------- 报错准备清单 ---------- */
.page-contact .ct-prep__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ct-hair);
}

.page-contact .ct-prep__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 4px 14px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 1px dashed var(--ct-hair);
}

.page-contact .ct-prep__num {
  padding-top: 3px;
  font-size: var(--t-14);
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--c-cyan);
}

.page-contact .ct-prep__title {
  margin: 0 0 6px;
  font-family: var(--f-display);
  font-size: var(--t-22);
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-paper);
}

.page-contact .ct-prep__text {
  margin: 0;
  font-size: var(--t-17);
  line-height: 1.78;
  color: var(--c-muted);
}

/* ---------- 合作洽谈 ---------- */
.page-contact .ct-coop__grid {
  display: grid;
  gap: 30px;
}

.page-contact .ct-coop__media .media__caption {
  margin-top: 12px;
  font-size: var(--t-14);
  line-height: 1.7;
  color: var(--c-muted);
}

.page-contact .ct-dirs {
  display: grid;
  gap: 4px;
  margin-top: 6px;
}

.page-contact .ct-dir {
  padding: 14px 0 14px 18px;
  border-left: 2px solid var(--c-steel);
  transition: border-color var(--ease);
}

.page-contact .ct-dir:hover {
  border-left-color: var(--c-cyan);
}

.page-contact .ct-dir__title {
  margin: 0 0 5px;
  font-size: var(--t-17);
  font-weight: 700;
  color: var(--c-paper);
}

.page-contact .ct-dir__text {
  margin: 0;
  font-size: var(--t-14);
  line-height: 1.75;
  color: var(--c-muted);
}

.page-contact .ct-flow {
  margin: 22px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--ct-hair);
  display: grid;
  gap: 10px;
}

.page-contact .ct-flow__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: var(--t-14);
  line-height: 1.72;
  color: var(--c-paper);
}

.page-contact .ct-flow__k {
  font-size: var(--t-14);
  color: var(--c-orange);
}

.page-contact .ct-coop__more {
  margin: 20px 0 0;
  font-size: var(--t-14);
  line-height: 1.78;
  color: var(--c-muted);
}

.page-contact .ct-coop__more a,
.page-contact .ct-close__lead a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-contact .ct-coop__more a:hover,
.page-contact .ct-close__lead a:hover,
.page-contact .ct-coop__more a:focus-visible,
.page-contact .ct-close__lead a:focus-visible {
  color: var(--c-orange);
}

/* ---------- 处理节奏时间轴 ---------- */
.page-contact .ct-timeline {
  display: grid;
  gap: 16px;
}

.page-contact .ct-step {
  position: relative;
  padding: 22px 20px 20px;
  background: var(--c-panel);
  border: 1px solid var(--c-steel);
  clip-path: var(--cut-tr);
  transition: border-color var(--ease), background var(--ease), transform var(--ease);
}

.page-contact .ct-step:hover,
.page-contact .ct-step:focus-within {
  border-color: var(--c-cyan);
  background: linear-gradient(160deg, var(--c-band), var(--c-panel));
  transform: translateY(-2px);
}

.page-contact .ct-step__num {
  margin: 0 0 10px;
  font-size: var(--t-14);
  letter-spacing: .14em;
  color: var(--c-muted);
}

.page-contact .ct-step__num::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 0 4px rgba(22, 200, 216, .14);
  vertical-align: middle;
  transition: box-shadow var(--ease), transform var(--ease);
}

.page-contact .ct-step:hover .ct-step__num::before,
.page-contact .ct-step:focus-within .ct-step__num::before {
  transform: scale(1.2);
  box-shadow: 0 0 0 7px rgba(22, 200, 216, .22);
}

.page-contact .ct-step__title {
  margin: 0 0 9px;
  font-family: var(--f-display);
  font-size: var(--t-22);
  font-weight: 700;
  line-height: 1.3;
  color: var(--c-paper);
}

.page-contact .ct-step__text {
  margin: 0;
  font-size: var(--t-14);
  line-height: 1.8;
  color: var(--c-muted);
}

/* ---------- 邮件要素线框 ---------- */
.page-contact .ct-wire {
  display: grid;
  background: var(--c-panel);
  border: 1px solid var(--c-steel);
  clip-path: var(--cut-both);
}

.page-contact .ct-wire__row {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  gap: 4px 12px;
  align-items: start;
  padding: 18px 20px;
  border-bottom: 1px dashed var(--ct-hair);
}

.page-contact .ct-wire__row:last-child {
  border-bottom: 0;
}

.page-contact .ct-wire__num {
  padding-top: 2px;
  font-size: var(--t-14);
  color: var(--c-cyan);
}

.page-contact .ct-wire__label {
  margin: 0;
  font-size: var(--t-17);
  font-weight: 700;
  color: var(--c-paper);
}

.page-contact .ct-wire__label::after {
  content: "";
  display: block;
  height: 1px;
  margin-top: 10px;
  background: linear-gradient(90deg, rgba(30, 92, 122, .9) 0%, rgba(30, 92, 122, .18) 78%, transparent 100%);
}

.page-contact .ct-wire__hint {
  margin: 8px 0 0;
  font-size: var(--t-14);
  line-height: 1.7;
  color: var(--c-muted);
}

.page-contact .ct-wire__req {
  padding: 3px 10px;
  align-self: start;
  font-size: var(--t-14);
  letter-spacing: .06em;
  color: var(--c-orange);
  border: 1px solid rgba(255, 106, 31, .5);
  clip-path: var(--cut-tr);
}

.page-contact .ct-wire__req--soft {
  color: var(--c-muted);
  border-color: var(--c-steel);
}

/* ---------- 收束 ---------- */
.page-contact .ct-close {
  border-top: 1px solid var(--c-steel);
}

.page-contact .ct-close__lead {
  margin: 0 0 24px;
  font-size: var(--t-17);
  line-height: 1.82;
  color: var(--c-muted);
}

.page-contact .ct-close__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ================= 响应式 ================= */

@media (min-width: 640px) {
  .page-contact .ct-hero__inner {
    padding-top: 40px;
    padding-bottom: 56px;
  }

  .page-contact .ct-path {
    padding: 26px 26px 22px;
  }

  .page-contact .ct-reach {
    padding: 30px 28px 28px;
  }

  .page-contact .ct-prep__item {
    grid-template-columns: 56px minmax(0, 1fr);
    padding: 24px 0;
  }

  .page-contact .ct-wire__row {
    grid-template-columns: 44px minmax(0, 1fr) auto;
    padding: 20px 26px;
  }
}

@media (min-width: 820px) {
  .page-contact .ct-timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 960px) {
  .page-contact .ct-main__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, .9fr);
    gap: 44px;
    align-items: start;
  }

  .page-contact .ct-reach {
    position: sticky;
    top: 28px;
  }

  .page-contact .ct-coop__grid {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    gap: 48px;
    align-items: start;
  }

  .page-contact .ct-dirs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px 24px;
  }

  .page-contact .ct-dirs > .ct-dir:first-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1180px) {
  .page-contact .ct-hero__title {
    max-width: 26ch;
  }

  .page-contact .ct-step {
    padding: 26px 24px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-path,
  .page-contact .ct-step,
  .page-contact .ct-step__num::before,
  .page-contact .ct-dir {
    transition: none;
  }
}