.page-contact {
  --ct-panel: rgba(16, 28, 58, .62);
  --ct-edge: rgba(234, 246, 244, .12);
  --ct-cyan-line: rgba(43, 232, 198, .38);
  --ct-gutter: clamp(18px, 4vw, 40px);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: linear-gradient(150deg, var(--ink), var(--turf-deep));
}

.page-contact .ct-hero__img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .42;
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(115% 85% at 88% 8%, rgba(43, 232, 198, .16), transparent 58%),
    linear-gradient(168deg, rgba(6, 18, 37, .74) 0%, rgba(6, 18, 37, .38) 44%, rgba(11, 43, 39, .94) 100%);
}

.page-contact .ct-hero__inner {
  position: relative;
  width: min(100% - 32px, var(--wrap));
  margin-inline: auto;
  padding: clamp(44px, 9vw, 104px) 0 clamp(42px, 7vw, 80px);
}

.page-contact .crumbs {
  margin-bottom: clamp(20px, 3.4vw, 32px);
}

.page-contact .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--muted);
}

.page-contact .crumbs li + li::before {
  content: "/";
  margin-right: 10px;
  color: rgba(143, 166, 160, .55);
}

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

.page-contact .crumbs a:hover,
.page-contact .crumbs a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-size: clamp(12.5px, 1.6vw, 15px);
  letter-spacing: .24em;
  color: var(--cyan);
}

.page-contact .ct-hero h1 {
  margin: 0 0 clamp(16px, 2.6vw, 24px);
  max-width: 14em;
  font-size: clamp(26px, 6.6vw, 56px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .ct-hero__lead {
  margin: 0;
  max-width: 38em;
  font-size: clamp(14.5px, 2.1vw, 17.5px);
  line-height: 1.85;
  color: rgba(234, 246, 244, .82);
}

/* ---------- 三条通道 ---------- */
.page-contact .ct-channels {
  padding: clamp(46px, 8vw, 92px) 0;
  background: linear-gradient(180deg, var(--turf-deep), var(--ink));
}

.page-contact .ct-channels__head {
  max-width: 40em;
  margin-bottom: clamp(24px, 4vw, 42px);
}

.page-contact .ct-channels__head h2 {
  margin: 0 0 12px;
  font-size: clamp(21px, 4vw, 34px);
  line-height: 1.24;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .ct-channels__head p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .ct-channel-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2.4vw, 22px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-channel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 3.4vw, 30px);
  border: 1px solid var(--ct-edge);
  border-radius: var(--radius);
  background: var(--ct-panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: border-color .25s ease, background .25s ease;
}

.page-contact .ct-channel:hover {
  border-color: var(--ct-cyan-line);
  background: rgba(16, 28, 58, .76);
}

.page-contact .ct-channel:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .ct-channel__tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
}

.page-contact .ct-channel__value {
  margin: 0;
  font-size: clamp(16px, 2.8vw, 20px);
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.page-contact .ct-mono {
  font-family: var(--font-mono);
  letter-spacing: .01em;
}

.page-contact .ct-channel:nth-child(1) .ct-channel__value {
  color: var(--gold);
}

.page-contact .ct-channel:nth-child(2) .ct-channel__value {
  color: var(--cyan);
}

.page-contact .ct-channel__value--addr {
  font-size: clamp(14.5px, 2.4vw, 17px);
  line-height: 1.7;
  color: var(--paper);
}

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

.page-contact .ct-channel__hint {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--ct-edge);
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(143, 166, 160, .92);
}

/* ---------- 邮件怎么写 ---------- */
.page-contact .ct-topic {
  padding: clamp(46px, 8vw, 92px) 0;
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
}

.page-contact .ct-topic__panel {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 4vw, 46px);
  border: 1px solid var(--ct-edge);
  border-radius: calc(var(--radius) + 6px);
  background: var(--ct-panel);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.page-contact .ct-topic__panel::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), rgba(43, 232, 198, 0));
}

.page-contact .ct-topic__panel h2 {
  margin: 0 0 14px;
  font-size: clamp(21px, 4vw, 34px);
  line-height: 1.24;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .ct-topic__lead {
  margin: 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .ct-template {
  margin: clamp(20px, 3vw, 30px) 0;
  padding: clamp(16px, 3vw, 24px);
  border: 1px dashed var(--ct-cyan-line);
  border-radius: 12px;
  background: rgba(6, 18, 37, .62);
}

.page-contact .ct-template__label {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-contact .ct-template__line {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(13.5px, 2.8vw, 17px);
  line-height: 1.7;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .ct-template__example {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(12px, 2.3vw, 14px);
  line-height: 1.7;
  color: var(--gold);
  overflow-wrap: anywhere;
}

.page-contact .ct-topic__body {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-topic__body li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(234, 246, 244, .82);
}

.page-contact .ct-topic__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--cyan);
}

/* ---------- 回复时段 ---------- */
.page-contact .ct-hours {
  padding: clamp(46px, 8vw, 92px) 0;
  background: linear-gradient(180deg, var(--turf-deep) 0%, var(--ink) 100%);
}

.page-contact .ct-hours__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4.5vw, 52px);
  align-items: center;
}

.page-contact .ct-hours h2 {
  margin: 0 0 14px;
  font-size: clamp(21px, 4vw, 34px);
  line-height: 1.24;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .ct-hours__lead {
  margin: 0;
  max-width: 38em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .ct-hours__facts {
  margin: clamp(20px, 3vw, 28px) 0 0;
  border-top: 1px solid var(--ct-edge);
}

.page-contact .ct-hours__facts > div {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--ct-edge);
}

.page-contact .ct-hours__facts dt {
  font-family: var(--font-serif);
  font-size: 13.5px;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-contact .ct-hours__facts dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper);
}

.page-contact .ct-hours__note {
  margin: clamp(16px, 2.6vw, 22px) 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(143, 166, 160, .92);
}

.page-contact .ct-hours__media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--ct-edge);
  border-radius: var(--radius);
  background: rgba(6, 18, 37, .5);
}

.page-contact .ct-hours__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 4;
  object-fit: cover;
}

.page-contact .ct-hours__media .media__caption {
  padding: 12px 16px;
  border-top: 1px solid var(--ct-edge);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 内容与素材合作 ---------- */
.page-contact .ct-partner {
  padding: clamp(46px, 8vw, 92px) 0;
  background: var(--ink-deep);
}

.page-contact .ct-partner__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 58px);
}

.page-contact .ct-partner h2 {
  margin: 0 0 14px;
  font-size: clamp(21px, 4vw, 34px);
  line-height: 1.24;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .ct-partner__lead {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .ct-partner__materials {
  display: grid;
  gap: 10px;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: clamp(16px, 3vw, 22px) 0 0;
  border-top: 1px solid var(--ct-edge);
  list-style: none;
}

.page-contact .ct-partner__materials li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(234, 246, 244, .78);
}

.page-contact .ct-partner__materials li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .86em;
  width: 9px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .ct-steps {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-steps > li {
  position: relative;
  padding: 0 0 clamp(20px, 3.2vw, 30px) 44px;
}

.page-contact .ct-steps > li::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 30px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--ct-cyan-line), rgba(43, 232, 198, .05));
}

.page-contact .ct-steps > li:last-child {
  padding-bottom: 0;
}

.page-contact .ct-steps > li:last-child::before {
  display: none;
}

.page-contact .ct-steps__no {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  border: 1px solid var(--ct-cyan-line);
  border-radius: 50%;
  background: rgba(6, 18, 37, .92);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

.page-contact .ct-steps h3 {
  margin: 0 0 6px;
  font-size: 16px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--paper);
}

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

/* ---------- 自查清单 ---------- */
.page-contact .ct-check {
  padding: clamp(46px, 8vw, 92px) 0;
  background: linear-gradient(180deg, var(--ink) 0%, var(--turf-deep) 100%);
}

.page-contact .ct-check h2 {
  margin: 0 0 12px;
  font-size: clamp(21px, 4vw, 34px);
  line-height: 1.24;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .ct-check__lead {
  margin: 0;
  max-width: 38em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .ct-check__list {
  display: grid;
  gap: 10px;
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-check__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: clamp(14px, 2.4vw, 18px) clamp(16px, 2.6vw, 20px);
  border: 1px solid var(--ct-edge);
  border-radius: 12px;
  background: rgba(16, 28, 58, .45);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper);
  cursor: pointer;
  transition: border-color .2s ease, background .2s ease;
}

.page-contact .ct-check__item:hover {
  border-color: var(--ct-cyan-line);
  background: rgba(16, 28, 58, .72);
}

.page-contact .ct-check__item:focus-within {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .ct-check__item input {
  flex: none;
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  accent-color: var(--cyan);
}

.page-contact .ct-check__text {
  transition: color .2s ease;
}

.page-contact .ct-check__item input:checked + .ct-check__text {
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-color: rgba(143, 166, 160, .5);
}

/* ---------- 自助入口 ---------- */
.page-contact .ct-more {
  padding: clamp(42px, 7vw, 84px) 0;
  background: var(--ink-deep);
}

.page-contact .ct-more h2 {
  margin: 0;
  font-size: clamp(20px, 3.6vw, 30px);
  line-height: 1.28;
  font-weight: 800;
  color: var(--paper);
}

.page-contact .ct-more__list {
  margin: clamp(20px, 3.4vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  overflow: hidden;
  border: 1px solid var(--ct-edge);
  border-radius: var(--radius);
  background: rgba(16, 28, 58, .38);
}

.page-contact .ct-more__list li + li {
  border-top: 1px solid var(--ct-edge);
}

.page-contact .ct-more__list a {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 18px;
  padding: clamp(15px, 2.6vw, 22px) clamp(18px, 3vw, 26px);
  color: inherit;
  text-decoration: none;
  transition: background .2s ease;
}

.page-contact .ct-more__list a:hover {
  background: rgba(43, 232, 198, .06);
}

.page-contact .ct-more__list a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-contact .ct-more__name {
  flex: none;
  font-size: 16px;
  font-weight: 700;
  color: var(--cyan);
}

.page-contact .ct-more__desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 收束 ---------- */
.page-contact .ct-close {
  position: relative;
  height: clamp(70px, 12vw, 120px);
  overflow: hidden;
  background: linear-gradient(180deg, rgba(11, 43, 39, .9), var(--ink));
}

.page-contact .ct-close::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(102deg, rgba(43, 232, 198, .1) 0 1px, transparent 1px 10px);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 55%, transparent);
  mask-image: linear-gradient(180deg, transparent, #000 55%, transparent);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-contact .ct-hours__facts > div {
    grid-template-columns: 150px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

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

  .page-contact .ct-check__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px clamp(18px, 3vw, 30px);
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hours__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }
}

@media (min-width: 980px) {
  .page-contact .ct-partner__grid {
    grid-template-columns: minmax(0, .84fr) minmax(0, 1.16fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-channel,
  .page-contact .ct-check__item,
  .page-contact .ct-check__text,
  .page-contact .ct-more__list a {
    transition: none;
  }
}