.page-contact {
  --ct-radius: 26px;
  --ct-gap: clamp(16px, 2.4vw, 24px);
  background: var(--ink-0);
  color: var(--white);
  font-family: var(--font-sans);
}

.page-contact a { color: var(--cyan); text-decoration: none; }
.page-contact a:hover { text-decoration: underline; }
.page-contact .btn { text-decoration: none; }

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding: clamp(26px, 4.5vw, 42px) 0 clamp(48px, 7vw, 88px);
  background:
    radial-gradient(1100px 520px at 84% -10%, rgba(53, 241, 208, .16), transparent 62%),
    radial-gradient(760px 440px at 2% 14%, rgba(23, 18, 56, .9), transparent 70%),
    var(--ink-0);
  overflow: hidden;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(53, 241, 208, .26), transparent);
}

.page-contact .ct-hero .crumbs { margin-bottom: clamp(20px, 3vw, 34px); }

.page-contact .ct-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-contact .ct-hero h1 {
  margin: 14px 0 20px;
  font-size: clamp(30px, 6.6vw, 58px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-contact .ct-hero .lede {
  max-width: 34em;
  color: var(--steel);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
}

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

.page-contact .ct-hero__quick {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin: clamp(28px, 4vw, 42px) 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-quick__item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--steel);
}

.page-contact .ct-quick__item b {
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

/* ---------- 图片容器 ---------- */
.page-contact .ct-shot { margin: 0; }

.page-contact .ct-shot__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--ct-radius);
  border: 1px solid var(--line);
}

.page-contact .ct-hero__media .ct-shot__img { aspect-ratio: 3 / 2; }
.page-contact .ct-flow__shot .ct-shot__img { aspect-ratio: 12 / 7; }

.page-contact .ct-shot__cap {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 章节通用 ---------- */
.page-contact .ct-block {
  position: relative;
  padding: var(--step) 0;
}

.page-contact .ct-block--teal {
  background:
    radial-gradient(900px 420px at 92% 0%, rgba(53, 241, 208, .08), transparent 62%),
    var(--ink-1);
}

.page-contact .ct-block--indigo {
  background:
    radial-gradient(800px 400px at 8% 100%, rgba(53, 241, 208, .07), transparent 66%),
    var(--ink-2);
}

.page-contact .ct-block--mist {
  background: var(--mist);
  color: var(--ink-0);
}

.page-contact .ct-block--mist .section-head__title { color: var(--ink-0); }
.page-contact .ct-block--mist .section-head__num { color: var(--teal-end); }
.page-contact .ct-block--mist .ct-lede { color: rgba(6, 20, 40, .72); }

.page-contact .ct-lede {
  max-width: 42em;
  margin: 16px 0 clamp(26px, 3.5vw, 40px);
  color: var(--steel);
}

/* ---------- 01 三类需求 ---------- */
.page-contact .ct-routes {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-route {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 2.6vw, 32px);
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(53, 241, 208, .12), rgba(53, 241, 208, 0) 58%), rgba(6, 20, 40, .5);
  border-radius: 30px 30px 30px 10px;
}

.page-contact .ct-route--b {
  background: linear-gradient(165deg, rgba(255, 138, 61, .14), rgba(255, 138, 61, 0) 58%), rgba(6, 20, 40, .5);
  border-radius: 12px 30px 30px 30px;
}

.page-contact .ct-route--c {
  background: linear-gradient(165deg, rgba(92, 23, 48, .34), rgba(92, 23, 48, 0) 62%), rgba(6, 20, 40, .5);
  border-radius: 30px 12px 30px 30px;
}

.page-contact .ct-route__k {
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-contact .ct-route--b .ct-route__k { color: var(--amber); }
.page-contact .ct-route--c .ct-route__k { color: var(--steel); }

.page-contact .ct-route__title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .ct-route__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(242, 246, 255, .82);
}

.page-contact .ct-route__prep {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--steel);
}

.page-contact .ct-route__prep b {
  margin-right: 6px;
  color: var(--cyan);
  font-weight: 700;
}

/* ---------- 02 联系渠道 ---------- */
.page-contact .ct-channels__grid {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-channel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(22px, 2.6vw, 30px);
  background: #fff;
  border: 1px solid rgba(6, 20, 40, .1);
  border-radius: 8px 26px 26px 26px;
  box-shadow: 0 26px 50px -40px rgba(6, 20, 40, .7);
}

.page-contact .ct-channel:nth-child(2) { border-radius: 26px 8px 26px 26px; }
.page-contact .ct-channel:nth-child(3) { border-radius: 26px 26px 26px 8px; }

.page-contact .ct-channel__label {
  font-size: 11px;
  letter-spacing: .22em;
  font-weight: 700;
  color: var(--teal-end);
}

.page-contact .ct-channel__value {
  margin: 0;
  font-size: clamp(18px, 2.6vw, 24px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--ink-0);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.page-contact .ct-channel__value--addr {
  font-size: clamp(15px, 2vw, 18px);
  line-height: 1.65;
  letter-spacing: 0;
}

.page-contact .ct-channel__use {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(6, 20, 40, .68);
}

/* ---------- 03 接待与回复节奏 ---------- */
.page-contact .ct-rhythm__list { border-top: 1px solid var(--line); }

.page-contact .ct-rhythm__row {
  display: grid;
  gap: 6px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-rhythm__key {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .ct-rhythm__desc {
  font-size: 14px;
  line-height: 1.85;
  color: var(--steel);
}

.page-contact .ct-rhythm__eta {
  font-size: 14px;
  font-weight: 700;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-contact .ct-rhythm__foot {
  margin: 20px 0 0;
  font-size: 13px;
  color: var(--steel);
}

/* ---------- 04 邮件建议 ---------- */
.page-contact .ct-mail {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-contact .ct-mail__intro {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel);
}

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

.page-contact .ct-mail__item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-mail__item:first-child { border-top: 1px solid var(--line); }

.page-contact .ct-mail__idx {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-contact .ct-mail__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .ct-mail__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--steel);
}

/* ---------- 05 合作流程四步 ---------- */
.page-contact .ct-flow__band {
  list-style: none;
  margin: 0 0 clamp(30px, 4vw, 52px);
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .ct-flow__step {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 22px 30px;
  border-top: 3px solid var(--cyan);
  border-radius: 0 0 22px 22px;
  background: linear-gradient(180deg, rgba(53, 241, 208, .13), rgba(53, 241, 208, .015));
}

.page-contact .ct-flow__step:nth-child(2) {
  border-top-color: var(--cyan);
  background: linear-gradient(180deg, rgba(53, 241, 208, .08), rgba(53, 241, 208, .015));
}

.page-contact .ct-flow__step:nth-child(3) {
  border-top-color: var(--amber);
  background: linear-gradient(180deg, rgba(255, 138, 61, .14), rgba(255, 138, 61, .015));
}

.page-contact .ct-flow__step:nth-child(4) {
  border-top-color: var(--amber);
  background: linear-gradient(180deg, rgba(255, 138, 61, .07), rgba(255, 138, 61, .015));
}

.page-contact .ct-flow__step:nth-child(n+3) .ct-flow__idx { color: var(--amber); }

.page-contact .ct-flow__idx {
  font-size: 26px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-contact .ct-flow__title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .ct-flow__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--steel);
}

.page-contact .ct-flow__eta {
  align-self: flex-start;
  margin-top: auto;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(53, 241, 208, .12);
  color: var(--cyan);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
}

/* ---------- 06 常见合作场景 ---------- */
.page-contact .ct-cases {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-case {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 0 0;
  border-top: 2px solid rgba(143, 166, 196, .3);
}

.page-contact .ct-case:nth-child(2) { border-top-color: rgba(53, 241, 208, .5); }
.page-contact .ct-case:nth-child(3) { border-top-color: rgba(255, 138, 61, .5); }

.page-contact .ct-case__title {
  margin: 0;
  font-size: 19px;
  font-weight: 800;
  color: var(--white);
}

.page-contact .ct-case__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(242, 246, 255, .8);
}

.page-contact .ct-case__fit {
  margin: auto 0 0;
  padding-top: 12px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--steel);
}

.page-contact .ct-case__fit b {
  margin-right: 6px;
  color: var(--cyan);
  font-weight: 700;
}

.page-contact .ct-cases__foot {
  margin: clamp(28px, 3.5vw, 40px) 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--steel);
}

/* ---------- 右下角竖排旁注 ---------- */
.page-contact .ct-note { display: none; }

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-hero h1 {
    transform: skewX(-2deg);
    transform-origin: 0 100%;
  }

  .page-contact .ct-rhythm__row {
    grid-template-columns: 160px minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 28px;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: center;
  }

  .page-contact .ct-routes {
    grid-template-columns: 1.5fr 1fr 1fr;
    align-items: stretch;
  }

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

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

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

@media (min-width: 920px) {
  .page-contact .ct-flow__band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .ct-flow__step {
    border-right: 1px solid var(--line);
  }

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

@media (min-width: 1200px) {
  .page-contact .ct-note {
    display: block;
    position: fixed;
    right: 16px;
    bottom: 104px;
    z-index: 4;
    writing-mode: vertical-rl;
    padding: 14px 9px;
    font-size: 12px;
    line-height: 1.7;
    letter-spacing: .16em;
    color: var(--steel);
    border: 1px solid var(--line);
    border-radius: 999px;
    background: linear-gradient(180deg, rgba(255, 138, 61, .16), rgba(255, 138, 61, .02));
    pointer-events: none;
  }
}

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