.page-contact {
  --ct-body: #C6D2CE;
  --ct-dim: #9DB0AB;
  background: var(--ink);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding-top: calc(var(--header-h) + clamp(28px, 6vw, 76px));
  padding-bottom: clamp(30px, 5vw, 60px);
}

.page-contact .ct-hero .lp-breadcrumb {
  margin-bottom: clamp(22px, 3.5vw, 42px);
}

.page-contact .ct-h1 {
  margin: clamp(10px, 1.5vw, 18px) 0 clamp(18px, 2.6vw, 30px);
  font-size: clamp(38px, 7.4vw, 104px);
  line-height: 0.94;
  letter-spacing: -0.02em;
  font-weight: 900;
}

.page-contact .ct-h1 em {
  font-style: normal;
  color: var(--amber);
}

.page-contact .ct-hero__lead {
  max-width: 34em;
  margin: 0;
  font-size: clamp(15px, 1.6vw, 19px);
  line-height: 1.85;
  color: var(--ct-body);
}

/* ---------- 工作台双栏 ---------- */
.page-contact .ct-desk {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
  padding-bottom: clamp(56px, 9vw, 128px);
}

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

@media (min-width: 960px) {
  .page-contact .ct-desk {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: clamp(32px, 5vw, 84px);
  }

  .page-contact .ct-desk__side {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }
}

/* ---------- 左侧常驻联系卡 ---------- */
.page-contact .ct-panel {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
}

.page-contact .ct-panel__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
  filter: saturate(0.75) contrast(1.05);
}

.page-contact .ct-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(168deg, rgba(10, 27, 23, 0.6) 0%, rgba(10, 27, 23, 0.93) 58%, #0A1B17 100%);
}

.page-contact .ct-panel__title {
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-size: clamp(19px, 2.2vw, 23px);
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-contact .ct-panel__title::before {
  content: "";
  display: block;
  width: 44px;
  height: 2px;
  margin-bottom: 14px;
  background: var(--neon);
}

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

.page-contact .ct-chan {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-chan__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ct-dim);
}

.page-contact .ct-chan__value {
  font-size: 16px;
  line-height: 1.5;
  font-weight: 500;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .ct-chan__value--mail {
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.5vw, 15px);
  letter-spacing: 0.01em;
  color: var(--cyan);
  cursor: text;
  -webkit-user-select: all;
  user-select: all;
}

.page-contact .ct-chan__hint {
  font-size: 13px;
  line-height: 1.65;
  color: var(--ct-dim);
}

.page-contact .ct-hours {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 18px 0 0;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--amber-soft);
}

.page-contact .ct-hours::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(53, 224, 208, 0.9);
}

.page-contact .ct-panel__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ct-dim);
}

/* ---------- 右侧章节 ---------- */
.page-contact .ct-sec {
  padding-bottom: clamp(46px, 7vw, 92px);
}

.page-contact .ct-sec:last-child {
  padding-bottom: 0;
}

.page-contact .ct-sec + .ct-sec {
  border-top: 1px solid rgba(30, 74, 64, 0.7);
  padding-top: clamp(34px, 5vw, 58px);
}

.page-contact .ct-h2 {
  margin: clamp(10px, 1.4vw, 16px) 0 clamp(12px, 1.8vw, 18px);
  font-size: clamp(25px, 3.4vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  font-weight: 800;
}

.page-contact .ct-intro {
  max-width: 34em;
  margin: 0 0 clamp(22px, 3vw, 34px);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--ct-body);
}

/* ---------- 四类反馈卡 ---------- */
.page-contact .ct-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(12px, 1.8vw, 18px);
}

@media (min-width: 720px) {
  .page-contact .ct-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
    padding-bottom: 48px;
  }

  .page-contact .ct-cards > .ct-card:nth-child(2),
  .page-contact .ct-cards > .ct-card:nth-child(4) {
    margin-top: clamp(20px, 3.4vw, 52px);
  }
}

.page-contact .ct-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  transition: border-color 0.3s var(--ease);
}

.page-contact .ct-card:hover {
  border-color: var(--ct-accent, var(--cyan));
}

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

.page-contact .ct-card--rule { --ct-accent: var(--cyan); }
.page-contact .ct-card--ver { --ct-accent: var(--amber); }
.page-contact .ct-card--res { --ct-accent: var(--rose); }
.page-contact .ct-card--idea { --ct-accent: var(--amber-soft); }

.page-contact .ct-card .lp-acc__item {
  margin: 0;
  border: 0;
  background: none;
}

.page-contact .ct-card .lp-acc__inner {
  padding: 0;
  overflow: hidden;
  min-height: 0;
}

.page-contact .ct-card__h {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-contact .ct-card__btn {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "num title icon"
    "num sub icon";
  column-gap: 12px;
  row-gap: 3px;
  align-items: center;
  width: 100%;
  margin: 0;
  padding: clamp(16px, 2.2vw, 22px) clamp(16px, 2.2vw, 22px) clamp(16px, 2.2vw, 22px) clamp(20px, 2.6vw, 26px);
  font: inherit;
  text-align: left;
  color: var(--paper);
  background: transparent;
  border: 0;
  cursor: pointer;
  transition: background 0.3s var(--ease);
}

.page-contact .ct-card__btn:hover {
  background: rgba(244, 247, 245, 0.05);
}

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

.page-contact .ct-card__num {
  grid-area: num;
  align-self: start;
  padding-top: 0.55em;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ct-accent);
}

.page-contact .ct-card__title {
  grid-area: title;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-contact .ct-card__sub {
  grid-area: sub;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ct-dim);
}

.page-contact .ct-card__icon {
  grid-area: icon;
  position: relative;
  width: 18px;
  height: 18px;
  flex: none;
}

.page-contact .ct-card__icon::before,
.page-contact .ct-card__icon::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  margin-top: -1px;
  background: var(--ct-accent);
  transition: transform 0.3s var(--ease);
}

.page-contact .ct-card__icon::after {
  transform: rotate(90deg);
}

.page-contact .ct-card__btn[aria-expanded="true"] .ct-card__icon::after {
  transform: rotate(0deg);
}

.page-contact .ct-card .lp-acc__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.38s var(--ease);
}

.page-contact .ct-card .lp-acc__item:has(.ct-card__btn[aria-expanded="true"]) .lp-acc__panel {
  grid-template-rows: 1fr;
}

.page-contact .ct-card__body {
  padding: 14px clamp(16px, 2.2vw, 22px) clamp(18px, 2.2vw, 22px) clamp(20px, 2.6vw, 26px);
  border-top: 1px solid rgba(30, 74, 64, 0.8);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ct-body);
}

.page-contact .ct-card__body p {
  margin: 0;
}

.page-contact .ct-card__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, 0.4);
}

.page-contact .ct-card__body a:hover {
  color: var(--amber-soft);
  border-bottom-color: var(--amber-soft);
}

.page-contact .ct-need {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .ct-need li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
}

.page-contact .ct-need li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--ct-accent, var(--cyan));
}

/* ---------- 材料清单 ---------- */
.page-contact .ct-pack {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-pack__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num title"
    "num text";
  column-gap: clamp(16px, 2.6vw, 34px);
  row-gap: 6px;
  padding: clamp(18px, 2.6vw, 28px) 0;
  background: var(--ink);
}

.page-contact .ct-pack__num {
  grid-area: num;
  padding-top: 0.38em;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-contact .ct-pack__title {
  grid-area: title;
  margin: 0;
  font-size: clamp(16px, 1.8vw, 18px);
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-contact .ct-pack__text {
  grid-area: text;
  max-width: 32em;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ct-body);
}

/* ---------- 流程 ---------- */
.page-contact .ct-flow {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(22px, 3.4vw, 44px) clamp(18px, 3vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
}

.page-contact .ct-flow__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
}

.page-contact .ct-flow::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(125% 90% at 50% 0%, rgba(10, 27, 23, 0.4) 0%, rgba(18, 48, 42, 0.94) 62%, #12302A 100%);
}

.page-contact .ct-flow__svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 150px;
}

.page-contact .ct-flow__svg circle {
  fill: none;
  stroke-width: 2;
}

.page-contact .ct-flow__svg circle:nth-of-type(1) { stroke: var(--cyan); }
.page-contact .ct-flow__svg circle:nth-of-type(2) { stroke: var(--amber); }
.page-contact .ct-flow__svg circle:nth-of-type(3) { stroke: var(--rose); }

.page-contact .ct-flow__svg text {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  text-anchor: middle;
  letter-spacing: 0.04em;
}

.page-contact .ct-flow__svg text:nth-of-type(1) { fill: var(--cyan); }
.page-contact .ct-flow__svg text:nth-of-type(2) { fill: var(--amber); }
.page-contact .ct-flow__svg text:nth-of-type(3) { fill: var(--rose); }

.page-contact .ct-steps {
  list-style: none;
  margin: clamp(18px, 2.6vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}

@media (min-width: 640px) {
  .page-contact .ct-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .ct-steps__item {
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-contact .ct-steps__title {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.page-contact .ct-steps__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ct-body);
}

.page-contact .ct-steps__tip {
  display: block;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--cyan);
  transition: max-height 0.32s var(--ease), opacity 0.32s var(--ease), margin-top 0.32s var(--ease);
}

.page-contact .ct-steps__item:hover .ct-steps__tip,
.page-contact .ct-steps__item:focus-within .ct-steps__tip {
  max-height: 5em;
  opacity: 1;
  margin-top: 10px;
}

@media (max-width: 639px) {
  .page-contact .ct-steps__tip {
    max-height: none;
    opacity: 1;
    margin-top: 10px;
  }
}

/* ---------- 纠错与合作 ---------- */
.page-contact .ct-pair {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

@media (min-width: 760px) {
  .page-contact .ct-pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .ct-pair__card:nth-child(2) {
    margin-top: clamp(20px, 3vw, 40px);
  }
}

.page-contact .ct-pair__card {
  padding: clamp(20px, 2.8vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.page-contact .ct-pair__tag {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink);
  background: var(--cyan);
}

.page-contact .ct-pair__card--media .ct-pair__tag {
  background: var(--rose);
  color: var(--paper);
}

.page-contact .ct-pair__card h3 {
  margin: 0 0 10px;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 800;
  line-height: 1.35;
}

.page-contact .ct-pair__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ct-body);
}

.page-contact .ct-outro {
  max-width: 34em;
  margin: clamp(24px, 3.6vw, 42px) 0 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ct-body);
}

.page-contact .ct-outro a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, 0.4);
}

.page-contact .ct-outro a:hover {
  color: var(--amber-soft);
  border-bottom-color: var(--amber-soft);
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-card,
  .page-contact .ct-card__btn,
  .page-contact .ct-card__icon::before,
  .page-contact .ct-card__icon::after,
  .page-contact .ct-card .lp-acc__panel,
  .page-contact .ct-steps__tip {
    transition: none;
  }
}
<<<END>>>