/* ============ 联系我们 · 页面专属样式 ============ */

.page-contact {
  --ct-line: rgba(244, 237, 225, .13);
  --ct-line-soft: rgba(244, 237, 225, .07);
  background: var(--void);
  padding-bottom: 0;
  overflow-x: hidden;
}

.page-contact .ct-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 首屏 ---------- */

.page-contact .ct-hero {
  position: relative;
  padding: calc(var(--header-h) + 68px) 0 54px;
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(0, 224, 164, .10) 0%, transparent 58%),
    radial-gradient(90% 80% at 6% 12%, rgba(255, 59, 31, .12) 0%, transparent 60%),
    linear-gradient(180deg, #0B0C0E 0%, #101216 100%);
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--ct-line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--ct-line-soft) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 92%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 92%);
  pointer-events: none;
}

.page-contact .ct-hero .container {
  position: relative;
  z-index: 1;
}

.page-contact .ct-hero h1 {
  margin: 16px 0 0;
  max-width: 18ch;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--cream);
}

.page-contact .ct-hero__lead {
  margin-top: 22px;
  max-width: 62ch;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .ct-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 34px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--ct-line);
  list-style: none;
}

.page-contact .ct-hero__facts li {
  font-size: .875rem;
  line-height: 1.7;
  color: var(--mist);
  max-width: 34ch;
}

.page-contact .ct-hero__k {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .12em;
  color: var(--copper);
}

/* ---------- 渠道卡片区 ---------- */

.page-contact .ct-channels {
  padding: 0 0 74px;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-figure {
  margin: 0 0 34px;
}

.page-contact .ct-figure .figure-frame__media img,
.page-contact .figure-frame__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-contact .figure-frame__cap {
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .ct-channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-contact .ct-channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 28px 24px 24px;
  background: var(--carbon);
  border: 2px solid var(--slate);
  box-shadow: var(--shadow-hard);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.page-contact .ct-channel::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  height: 5px;
  background: var(--copper);
}

.page-contact .ct-channel--mail::before { background: var(--flare); }
.page-contact .ct-channel--hot::before { background: var(--volt); }
.page-contact .ct-channel--addr::before { background: var(--flag); }

.page-contact .ct-channel:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
  border-color: var(--copper);
}

.page-contact .ct-channel__use {
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .12em;
  color: var(--copper);
}

.page-contact .ct-channel--mail .ct-channel__use { color: var(--flare); }
.page-contact .ct-channel--hot .ct-channel__use { color: var(--volt); }
.page-contact .ct-channel--addr .ct-channel__use { color: var(--flag); }

.page-contact .ct-channel h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: .01em;
  color: var(--cream);
}

.page-contact .ct-channel__value {
  margin: 0;
  padding: 11px 13px;
  background: var(--void);
  border-left: 3px solid var(--copper);
  font-size: .875rem;
  line-height: 1.6;
  color: var(--cream);
  word-break: break-word;
}

.page-contact .ct-channel--mail .ct-channel__value { border-left-color: var(--flare); }
.page-contact .ct-channel--hot .ct-channel__value { border-left-color: var(--volt); color: var(--volt); }
.page-contact .ct-channel--addr .ct-channel__value { border-left-color: var(--flag); font-size: .8125rem; }

.page-contact .ct-channel__body {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .ct-channel__list {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: .875rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .ct-channel__list li {
  position: relative;
  padding-left: 16px;
}

.page-contact .ct-channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 6px;
  height: 6px;
  background: var(--copper);
}

.page-contact .ct-channel--mail .ct-channel__list li::before { background: var(--flare); }
.page-contact .ct-channel--hot .ct-channel__list li::before { background: var(--volt); }
.page-contact .ct-channel--addr .ct-channel__list li::before { background: var(--flag); }

.page-contact .ct-channel .btn {
  align-self: flex-start;
  margin-top: auto;
}

/* ---------- 章节头 ---------- */

.page-contact .ct-head {
  max-width: 720px;
}

.page-contact .ct-head h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.6vw, 2.3rem);
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-contact .ct-head__sub {
  margin: 14px 0 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 邮件四要素 ---------- */

.page-contact .ct-mail {
  padding: 74px 0;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-mail__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 36px;
}

.page-contact .ct-mail__item {
  display: grid;
  align-content: start;
  gap: 9px;
  padding: 22px 20px;
  background: var(--carbon);
  border: 1px solid var(--slate);
  border-top: 3px solid var(--copper);
}

.page-contact .ct-mail__no {
  font-size: .75rem;
  letter-spacing: .14em;
  color: var(--flare);
}

.page-contact .ct-mail__item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--cream);
}

.page-contact .ct-mail__item p {
  margin: 0;
  font-size: .875rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .ct-mail__note {
  margin: 30px 0 0;
  padding: 18px 20px;
  border-left: 3px solid var(--copper);
  background: rgba(197, 139, 74, .07);
  font-size: .875rem;
  line-height: 1.8;
  color: var(--cream);
}

/* ---------- 热线区（浅色章节） ---------- */

.page-contact .ct-hot {
  padding: 74px 0;
  background: var(--cream);
  color: var(--ink);
}

.page-contact .ct-hot__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-contact .ct-hot__eyebrow {
  margin: 0;
  font-size: .75rem;
  letter-spacing: .14em;
  color: #7A5A2E;
}

.page-contact .ct-hot h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.6vw, 2.3rem);
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-contact .ct-hot__lead {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: .9375rem;
  line-height: 1.85;
  color: #4A3A2E;
}

.page-contact .ct-hot__copy {
  display: inline-flex;
  align-items: center;
  margin-top: 22px;
  padding: 12px 22px;
  background: var(--ink);
  color: var(--cream);
  border: 2px solid var(--ink);
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .08em;
  cursor: pointer;
  box-shadow: 4px 4px 0 rgba(42, 33, 27, .3);
  transition: background .2s ease, border-color .2s ease, color .2s ease;
}

.page-contact .ct-hot__copy:hover,
.page-contact .ct-hot__copy:focus-visible {
  background: var(--flare);
  border-color: var(--flare);
  color: #FFFFFF;
}

.page-contact .ct-hot__list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid rgba(42, 33, 27, .24);
}

.page-contact .ct-hot__list li {
  padding: 18px 0;
  border-bottom: 2px solid rgba(42, 33, 27, .24);
}

.page-contact .ct-hot__tag {
  display: inline-block;
  margin-bottom: 8px;
  padding: 3px 9px;
  background: var(--ink);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .1em;
}

.page-contact .ct-hot__list p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.78;
  color: #3B2E24;
}

/* ---------- 四步流程 ---------- */

.page-contact .ct-flow {
  padding: 74px 0;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-figure--flow {
  margin-top: 34px;
}

.page-contact .ct-flow__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: ct-step;
}

.page-contact .ct-step {
  position: relative;
  padding: 22px 20px;
  background: var(--carbon);
  border: 1px solid var(--slate);
  border-left: 3px solid var(--flare);
}

.page-contact .ct-step__no {
  display: block;
  margin-bottom: 8px;
  font-size: .6875rem;
  letter-spacing: .14em;
  color: var(--copper);
}

.page-contact .ct-step h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  color: var(--cream);
}

.page-contact .ct-step p {
  margin: 0;
  font-size: .875rem;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 咨询整理与表单 ---------- */

.page-contact .ct-prep {
  padding: 74px 0;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-prep__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 34px;
}

.page-contact .ct-form {
  display: grid;
  gap: 18px;
  padding: 28px 24px;
  background: var(--carbon);
  border: 2px solid var(--slate);
  box-shadow: var(--shadow-hard);
}

.page-contact .ct-field {
  display: grid;
  gap: 9px;
  min-width: 0;
}

.page-contact .ct-field label {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--copper);
}

.page-contact .ct-field select,
.page-contact .ct-field input,
.page-contact .ct-field textarea {
  width: 100%;
  max-width: 100%;
  padding: 12px 14px;
  background: var(--void);
  border: 2px solid var(--slate);
  border-radius: 0;
  color: var(--cream);
  font-family: var(--font-body);
  font-size: .9375rem;
  line-height: 1.6;
  color-scheme: dark;
  transition: border-color .2s ease;
}

.page-contact .ct-field textarea {
  min-height: 128px;
  resize: vertical;
}

.page-contact .ct-field select:focus,
.page-contact .ct-field input:focus,
.page-contact .ct-field textarea:focus {
  outline: none;
  border-color: var(--flare);
}

.page-contact .ct-field input::placeholder,
.page-contact .ct-field textarea::placeholder {
  color: #6E747E;
}

.page-contact .ct-prep__aside {
  display: grid;
  align-content: start;
  gap: 16px;
  padding: 26px 22px;
  background: rgba(0, 224, 164, .05);
  border: 2px dashed rgba(0, 224, 164, .38);
}

.page-contact .ct-prep__aside h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--volt);
}

.page-contact .ct-prep__aside ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: .875rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .ct-prep__aside li {
  position: relative;
  padding-left: 18px;
}

.page-contact .ct-prep__aside li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 7px;
  height: 7px;
  border: 1px solid var(--volt);
}

.page-contact .ct-prep__aside .btn {
  justify-self: start;
}

.page-contact .ct-prep__tip {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid rgba(0, 224, 164, .22);
  font-size: .8125rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 快捷入口与备案 ---------- */

.page-contact .ct-links {
  padding: 74px 0 84px;
}

.page-contact .ct-links h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.6vw, 2.1rem);
  line-height: 1.2;
  color: var(--cream);
}

.page-contact .ct-links__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-links__list li {
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-links__list a {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas: "name arrow" "desc arrow";
  align-items: center;
  gap: 6px 18px;
  padding: 18px 4px;
  text-decoration: none;
  transition: background .2s ease, padding-left .2s ease;
}

.page-contact .ct-links__list a:hover,
.page-contact .ct-links__list a:focus-visible {
  background: rgba(197, 139, 74, .08);
  padding-left: 12px;
}

.page-contact .ct-links__name {
  grid-area: name;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  color: var(--cream);
}

.page-contact .ct-links__desc {
  grid-area: desc;
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .ct-links__arrow {
  grid-area: arrow;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--copper);
  transition: transform .2s ease, color .2s ease;
}

.page-contact .ct-links__list a:hover .ct-links__arrow {
  transform: translateX(4px);
  color: var(--flare);
}

.page-contact .ct-stamp {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin-top: 40px;
  padding: 18px 20px;
  background: var(--carbon);
  border: 2px solid var(--slate);
}

.page-contact .ct-stamp__label {
  margin: 0;
  font-size: .6875rem;
  letter-spacing: .14em;
  color: var(--copper);
}

.page-contact .ct-stamp__value {
  margin: 0;
  font-size: .875rem;
  color: var(--cream);
}

.page-contact .ct-stamp__copy {
  margin-left: auto;
  padding: 8px 16px;
  background: transparent;
  border: 2px solid var(--slate);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .08em;
  cursor: pointer;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}

.page-contact .ct-stamp__copy:hover,
.page-contact .ct-stamp__copy:focus-visible {
  border-color: var(--copper);
  color: var(--copper);
  background: rgba(197, 139, 74, .1);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-contact .ct-mail__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 22px;
  }

  .page-contact .ct-field--full {
    grid-column: 1 / -1;
  }
}

@media (min-width: 768px) {
  .page-contact .ct-hero {
    padding: calc(var(--header-h) + 82px) 0 62px;
  }

  .page-contact .ct-channel-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .ct-channel--mail { grid-column: span 5; }
  .page-contact .ct-channel--hot { grid-column: span 4; }
  .page-contact .ct-channel--addr { grid-column: span 3; }

  .page-contact .ct-flow__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 26px;
  }

  .page-contact .ct-step:not(:last-child)::after {
    content: "→";
    position: absolute;
    top: 22px;
    right: -20px;
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--flare);
  }

  .page-contact .ct-hot__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-contact .ct-mail__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .ct-prep__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 30px;
  }

  .page-contact .ct-links__list a {
    grid-template-columns: minmax(160px, 1fr) minmax(0, 2fr) auto;
    grid-template-areas: "name desc arrow";
    padding: 20px 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-channel,
  .page-contact .ct-hot__copy,
  .page-contact .ct-links__list a,
  .page-contact .ct-links__arrow,
  .page-contact .ct-stamp__copy {
    transition: none;
  }

  .page-contact .ct-channel:hover {
    transform: none;
  }
}