.page-contact {
  --ct-cut: -7deg;
  --ct-gap: clamp(18px, 3vw, 30px);
  --ct-pad: clamp(20px, 3.4vw, 36px);
  --ct-band-pad: clamp(46px, 7vw, 92px);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-contact h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 14px 0 18px;
  text-wrap: balance;
}

.page-contact h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 3.9vw, 38px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 10px 0 14px;
}

.page-contact h3 {
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 800;
  line-height: 1.35;
  margin: 0 0 8px;
}

.page-contact p {
  margin: 0 0 12px;
}

.ct-crumb {
  padding-top: clamp(14px, 2vw, 22px);
  color: var(--muted);
  font-size: 13px;
}

.ct-link {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.ct-link:hover,
.ct-link:focus-visible {
  border-bottom-color: var(--blue);
}

/* ---------- 首屏 ---------- */
.ct-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
  align-items: start;
}

.ct-hero__body .lead {
  max-width: 58ch;
}

.ct-hero__marks {
  list-style: none;
  padding: 0;
  margin: 26px 0 0;
  display: grid;
  gap: 12px;
  max-width: 46ch;
}

.ct-hero__marks li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding-left: 14px;
  border-left: 3px solid var(--red);
  font-size: 14px;
  color: var(--muted);
  line-height: 1.5;
}

.ct-hero__marks .mono {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 15px;
  color: var(--ink);
}

.ct-card {
  position: relative;
  background: var(--ice);
  border-left: 6px solid var(--red);
  border-radius: var(--r-card);
  padding: var(--ct-pad);
  box-shadow: var(--shadow);
}

.ct-card::after {
  content: "";
  position: absolute;
  right: -18px;
  bottom: -18px;
  width: 92px;
  height: 92px;
  background: var(--red);
  opacity: 0.12;
  border-radius: 24px;
  transform: rotate(-12deg);
  pointer-events: none;
}

.ct-card__kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--red);
  margin: 0 0 6px;
}

.ct-card__title {
  font-size: clamp(20px, 2.4vw, 26px);
  margin: 0 0 8px;
}

.ct-card__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px dashed rgba(11, 13, 16, 0.22);
}

.ct-card__row:first-of-type {
  border-top: 1px dashed rgba(11, 13, 16, 0.22);
  margin-top: 10px;
}

.ct-card__label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.ct-card__value {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
  word-break: break-word;
}

.ct-card__mail {
  font-family: var(--font-mono);
  font-weight: 600;
  word-break: break-all;
}

.ct-card__note,
.ct-card__foot {
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
  margin: 16px 0 0;
}

.ct-card__foot {
  margin-top: 8px;
}

.page-contact .ct-copy {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: var(--r-tag);
  border: 1.5px solid var(--blue);
  background: transparent;
  color: var(--blue);
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .ct-copy:hover,
.page-contact .ct-copy:focus-visible {
  background: var(--blue);
  color: #fff;
}

.page-contact .ct-copy[data-copied="true"] {
  border-color: var(--green);
  background: var(--green);
  color: #fff;
}

/* ---------- 服务范围 ---------- */
.ct-scope__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
  align-items: start;
}

.ct-scope__text > p {
  max-width: 60ch;
}

.ct-scope__list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 12px;
  counter-reset: none;
}

.ct-scope__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 18px 18px 16px;
  background: #fff;
  border: 1px solid var(--grey);
  border-radius: var(--r-card);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.ct-scope__item:hover {
  transform: translateY(-2px);
  border-color: var(--red);
  box-shadow: var(--shadow);
}

.ct-ico {
  color: var(--red);
  flex: none;
  margin-top: 2px;
}

.ct-scope__item:nth-child(even) .ct-ico {
  color: var(--blue);
}

.ct-scope__item p {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}

.ct-scope__media {
  margin: 0;
  transform: rotate(-1.5deg);
}

.ct-scope__media .media__img {
  border-radius: var(--r-shot);
}

/* ---------- 适合谁合作 ---------- */
.ct-who {
  background: var(--grey);
}

.ct-who__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 22px;
}

.ct-who__card {
  background: #fff;
  border-radius: var(--r-card);
  border-top: 5px solid var(--red);
  padding: 22px 20px;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.ct-who__card:nth-child(2) {
  border-top-color: var(--blue);
}

.ct-who__card:nth-child(3) {
  border-top-color: var(--yellow);
}

.ct-who__card:hover {
  transform: translateY(-2px);
}

.ct-who__card .tag {
  margin-bottom: 12px;
}

.ct-who__text {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
  margin: 0 0 14px;
}

.ct-who__card .ct-link {
  font-size: 14px;
  font-weight: 700;
}

/* ---------- 合作流程 ---------- */
.ct-flow {
  list-style: none;
  padding: 0;
  margin: 26px 0 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.ct-flow__item {
  position: relative;
  background: #fff;
  border: 1px solid var(--grey);
  border-left: 4px solid var(--red);
  border-radius: var(--r-card);
  padding: 20px 20px 18px;
  cursor: default;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.ct-flow__item:hover,
.ct-flow__item:focus-visible,
.ct-flow__item:focus-within {
  transform: translateY(-2px);
  border-color: var(--red);
  box-shadow: var(--shadow);
  outline: none;
}

.ct-flow__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 13px;
  color: #fff;
  background: var(--red);
  border-radius: var(--r-tag);
  padding: 3px 9px;
  margin-bottom: 10px;
}

.ct-flow__item h3 {
  font-size: 18px;
  margin-bottom: 4px;
}

.ct-flow__item > p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
  margin: 0;
}

.ct-flow__more {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height var(--dur) var(--ease), opacity var(--dur) var(--ease), margin-top var(--dur) var(--ease);
  margin-top: 0;
}

.ct-flow__item:hover .ct-flow__more,
.ct-flow__item:focus-visible .ct-flow__more,
.ct-flow__item:focus-within .ct-flow__more {
  max-height: 160px;
  opacity: 1;
  margin-top: 10px;
}

/* ---------- 表单斜切区 ---------- */
.ct-band {
  position: relative;
  margin: clamp(30px, 5vw, 64px) 0;
  padding: var(--ct-band-pad) 0;
  background: linear-gradient(118deg, var(--ice) 0%, var(--grey) 54%, #ffffff 100%);
  clip-path: polygon(0 3.5%, 100% 0, 100% 96.5%, 0 100%);
}

.ct-band__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
  align-items: start;
}

.ct-form-card {
  background: #fff;
  border-radius: var(--r-card);
  padding: var(--ct-pad);
  box-shadow: var(--shadow);
  border-left: 5px solid var(--red);
}

.ct-form-card__intro {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 56ch;
}

.ct-form {
  margin-top: 18px;
}

.ct-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.ct-form__types {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0 14px;
}

.ct-chip {
  display: inline-block;
  padding: 8px 14px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: var(--r-tag);
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.ct-chip:hover {
  border-color: var(--blue);
  color: var(--blue);
}

#ct-t1:checked ~ .ct-form__types label[for="ct-t1"],
#ct-t2:checked ~ .ct-form__types label[for="ct-t2"],
#ct-t3:checked ~ .ct-form__types label[for="ct-t3"] {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}

.ct-notes {
  margin-bottom: 18px;
}

.ct-note {
  display: none;
  background: var(--ice);
  border-radius: var(--r-tag);
  padding: 11px 14px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink);
  margin: 0;
}

#ct-t1:checked ~ .ct-notes .ct-note:nth-child(1),
#ct-t2:checked ~ .ct-notes .ct-note:nth-child(2),
#ct-t3:checked ~ .ct-notes .ct-note:nth-child(3) {
  display: block;
}

.ct-field {
  display: grid;
  gap: 6px;
  margin-bottom: 16px;
}

.ct-field__label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin: 0;
}

.ct-form__types + .ct-notes + .ct-field {
  margin-top: 0;
}

.ct-input {
  width: 100%;
  box-sizing: border-box;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ink);
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: var(--r-tag);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.ct-input::placeholder {
  color: #9aa2ae;
}

.ct-input:focus {
  outline: 2px solid var(--blue);
  outline-offset: 1px;
  background: var(--ice);
  border-color: var(--blue);
}

.ct-input--area {
  resize: vertical;
  min-height: 110px;
  line-height: 1.65;
}

.ct-input:user-invalid {
  border-color: var(--red);
  background: #fff5f6;
}

.ct-field__tip {
  display: none;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--red);
}

.ct-input:user-invalid + .ct-field__tip {
  display: block;
}

.ct-form__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  padding-top: 6px;
  border-top: 1px dashed var(--line);
  margin-top: 4px;
}

.ct-form__note {
  flex: 1 1 240px;
  font-size: 12.8px;
  line-height: 1.65;
  color: var(--muted);
  margin: 8px 0 0;
}

.ct-form__aside {
  padding: 4px 0 0;
}

.ct-form__aside h3 {
  font-size: 19px;
  margin-bottom: 12px;
}

.ct-form__list {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
  display: grid;
  gap: 10px;
}

.ct-form__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink);
}

.ct-form__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--blue);
  border-radius: 2px;
  transform: rotate(45deg);
}

.ct-form__aside-note {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
  border-top: 2px solid var(--red);
  padding-top: 12px;
}

/* ---------- 服务数据 ---------- */
.ct-stats__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
  align-items: start;
}

.ct-stats__media {
  margin: 0;
}

.ct-stats__media .media__img {
  border-radius: var(--r-shot);
}

.ct-stats__cells {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .ct-stats .metric {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  background: #fff;
  border-left: 3px solid var(--blue);
  border-radius: var(--r-tag);
}

.page-contact .ct-stats .metric__value {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.1;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-contact .ct-stats .metric__label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 联系渠道 ---------- */
.ct-channel {
  background: var(--grey);
}

.ct-channel__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 20px;
}

.ct-channel__card {
  display: grid;
  gap: 6px;
  padding: 20px;
  background: #fff;
  border-radius: var(--r-card);
  border-bottom: 4px solid var(--red);
}

.ct-channel__card:nth-child(2) {
  border-bottom-color: var(--blue);
}

.ct-channel__card:nth-child(3) {
  border-bottom-color: var(--ink);
}

.ct-channel__label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.ct-channel__value {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  word-break: break-word;
}

.ct-channel__note {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
  margin: 4px 0 0;
}

.ct-channel__tail {
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
  padding-left: 16px;
  border-left: 4px solid var(--yellow);
}

/* ---------- 收束 ---------- */
.ct-cta__inner {
  display: grid;
  gap: 16px;
  padding: clamp(20px, 3vw, 30px);
  background: var(--deep);
  color: #fff;
  border-radius: var(--r-card);
  clip-path: polygon(0 0, 100% 3%, 100% 100%, 0 97%);
}

.ct-cta__text {
  font-size: clamp(17px, 2.2vw, 22px);
  font-weight: 700;
  line-height: 1.5;
  margin: 0;
}

.ct-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.ct-cta__links .btn--ghost {
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
}

@media (hover: none) {
  .ct-flow__more {
    max-height: none;
    opacity: 1;
    margin-top: 10px;
  }
}

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

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

  .ct-stats__cells {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ct-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .ct-hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.92fr);
  }

  .ct-scope__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  }

  .ct-scope__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ct-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

  .ct-flow__item:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 34px;
    right: -18px;
    width: 18px;
    height: 2px;
    background: var(--blue);
  }

  .ct-stats__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }
}

@media (min-width: 980px) {
  .ct-band__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(26px, 4vw, 54px);
  }

  .ct-form__aside {
    padding-top: 30px;
    padding-left: clamp(18px, 2.4vw, 30px);
    border-left: 1px solid rgba(11, 13, 16, 0.18);
  }
}

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

  .ct-scope__media {
    transform: none;
  }
}
<<<END>>>