/* ===== page-contact：联系我们 ===== */

.page-contact {
  padding-top: 24px;
  padding-bottom: 0;
}

/* --- 首屏 --- */
.page-contact .ct-intro {
  padding-bottom: 48px;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-intro .crumbs {
  margin: 0 0 26px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-contact .ct-intro .crumbs a {
  color: var(--navy-800);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-contact .ct-intro .crumbs a:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-contact .ct-intro__grid {
  display: grid;
  gap: 22px;
}

.page-contact .ct-intro__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 32px;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--navy-900);
  max-width: 14em;
}

.page-contact .ct-intro__lede {
  margin: 0 0 20px;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--mute);
  max-width: 36em;
}

.page-contact .ct-intro__lede strong {
  color: var(--navy-800);
  font-weight: 700;
}

.page-contact .ct-intro__state {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 8px 14px;
  background: var(--sand);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--navy-800);
}

.page-contact .ct-dot {
  flex: none;
  width: 7px;
  height: 7px;
  background: var(--cyan);
}

/* --- 主体两栏 --- */
.page-contact .ct-main {
  padding-top: 56px;
}

.page-contact .ct-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
}

/* --- 左：联系通道 --- */
.page-contact .ct-channels {
  list-style: none;
  margin: 0 0 32px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-channel {
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-channel__k {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--slate);
}

.page-contact .ct-channel__v {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(13px, 4vw, 19px);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--navy-900);
  word-break: break-all;
  overflow-wrap: anywhere;
  -webkit-user-select: all;
  user-select: all;
}

.page-contact .ct-channel__v--addr {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.65;
  word-break: normal;
  overflow-wrap: break-word;
}

.page-contact .ct-channel__d {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.78;
  color: var(--mute);
}

.page-contact .ct-aside__media {
  margin: 0;
  border: 1px solid var(--line);
}

/* --- 右：准备清单 --- */
.page-contact .ct-prep {
  list-style: none;
  margin: 0 0 52px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-prep__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-prep__no {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan-dark);
}

.page-contact .ct-prep__t {
  margin: 0 0 7px;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .ct-prep__d {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.8;
  color: var(--mute);
}

/* --- 右：表单 --- */
.page-contact .ct-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  padding: 26px 22px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--navy-800);
}

.page-contact .ct-field {
  min-width: 0;
}

.page-contact .ct-label {
  display: block;
  margin-bottom: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--slate);
}

.page-contact .ct-req {
  color: var(--signal);
}

.page-contact .ct-input,
.page-contact .ct-select,
.page-contact .ct-area {
  display: block;
  width: 100%;
  box-sizing: border-box;
  padding: 10px 2px;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  appearance: none;
  -webkit-appearance: none;
  transition: border-color 180ms var(--ease);
}

.page-contact .ct-select {
  padding-right: 30px;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--navy-800) 50%),
    linear-gradient(135deg, var(--navy-800) 50%, transparent 50%);
  background-position: calc(100% - 14px) 19px, calc(100% - 8px) 19px;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

.page-contact .ct-area {
  min-height: 104px;
  line-height: 1.75;
  resize: vertical;
}

.page-contact .ct-input::placeholder,
.page-contact .ct-area::placeholder {
  color: var(--slate);
  opacity: .62;
}

.page-contact .ct-input:focus,
.page-contact .ct-select:focus,
.page-contact .ct-area:focus {
  outline: none;
  border-bottom-color: var(--signal);
  box-shadow: inset 0 -1px 0 0 var(--signal);
}

.page-contact .ct-submit {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 6px;
}

.page-contact .ct-submit__btn {
  flex: none;
}

.page-contact .ct-submit__note {
  flex: 1 1 220px;
  margin: 0;
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* --- 填表说明 --- */
.page-contact .ct-form-note {
  margin-top: 26px;
  padding: 22px 20px;
  background: var(--sand);
  border-left: 3px solid var(--navy-800);
}

.page-contact .ct-form-note__t {
  margin: 0 0 12px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--navy-900);
}

.page-contact .ct-form-note__list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
}

.page-contact .ct-form-note__list li {
  position: relative;
  padding-left: 14px;
  margin-bottom: 6px;
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.8;
  color: var(--mute);
}

.page-contact .ct-form-note__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 1px;
  background: var(--signal);
}

.page-contact .ct-form-note__list strong {
  color: var(--ink);
  font-weight: 600;
}

.page-contact .ct-form-note > p {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.8;
  color: var(--mute);
}

/* --- 响应节奏 --- */
.page-contact .ct-flow,
.page-contact .ct-region {
  margin-top: 72px;
  padding-top: 52px;
  border-top: 1px solid var(--line);
}

.page-contact .ct-flow__media {
  margin: 0 0 40px;
  border: 1px solid var(--line);
}

.page-contact .ct-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-contact .ct-timeline__item {
  position: relative;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-timeline__item::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 1px;
  height: 9px;
  background: var(--cyan);
}

.page-contact .ct-timeline__item:first-child::before {
  width: 3px;
  background: var(--signal);
}

.page-contact .ct-timeline__item:first-child {
  border-top-color: var(--signal);
}

.page-contact .ct-timeline__when {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan-dark);
}

.page-contact .ct-timeline__item:first-child .ct-timeline__when {
  color: var(--signal);
}

.page-contact .ct-timeline__t {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: 19px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--navy-900);
}

.page-contact .ct-timeline__d {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.78;
  color: var(--mute);
}

/* --- 区域对接 --- */
.page-contact .ct-region__switch {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 28px;
}

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

.page-contact .ct-region__panel {
  padding: 24px 20px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--navy-800);
}

.page-contact .ct-region__panel h3 {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: 20px;
  line-height: 1.35;
  color: var(--navy-900);
}

.page-contact .ct-region__panel > p {
  margin: 0 0 16px;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.8;
  color: var(--mute);
}

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

.page-contact .ct-region__list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.75;
  color: var(--mute);
}

.page-contact .ct-region__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

/* --- 收束数据带 --- */
.page-contact .ct-band {
  margin-top: 80px;
  padding: 40px 0 44px;
}

.page-contact .ct-band__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px 16px;
}

.page-contact .ct-band__cell {
  min-width: 0;
}

.page-contact .ct-band__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 38px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.page-contact .ct-band__lab {
  display: block;
  margin-top: 10px;
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.65;
  color: rgba(255, 255, 255, .74);
}

/* ===== 平板及以上 ===== */
@media (min-width: 700px) {
  .page-contact .ct-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 28px;
    padding: 32px 28px;
  }

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

  .page-contact .ct-band__grid {
    gap: 28px 20px;
  }
}

/* ===== 桌面布局 ===== */
@media (min-width: 900px) {
  .page-contact .ct-intro {
    padding-bottom: 60px;
  }

  .page-contact .ct-intro__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 56px;
    align-items: end;
  }

  .page-contact .ct-intro__title {
    font-size: 54px;
  }

  .page-contact .ct-intro__lede {
    font-size: 17px;
  }

  .page-contact .ct-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }

  .page-contact .ct-aside {
    position: sticky;
    top: 88px;
  }

  .page-contact .ct-flow__media {
    margin-bottom: 48px;
  }

  .page-contact .ct-timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 28px;
  }

  .page-contact .ct-timeline__item {
    padding-top: 26px;
  }

  .page-contact .ct-region__panels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px;
  }

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

  .page-contact .ct-band__cell {
    padding: 4px 0;
  }

  .page-contact .ct-band__cell + .ct-band__cell {
    padding-left: 28px;
    border-left: 1px solid rgba(46, 196, 182, .3);
  }

  .page-contact .ct-band__num {
    font-size: 54px;
  }
}

/* ===== 窄屏保护 ===== */
@media (max-width: 420px) {
  .page-contact .ct-prep__item {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 10px;
  }

  .page-contact .ct-band__num {
    font-size: 32px;
  }

  .page-contact .ct-form {
    padding: 22px 16px;
  }
}