.page-contact {
  --ct-gap: clamp(14px, 2vw, 22px);
  --ct-pad: clamp(20px, 3vw, 32px);
  padding-top: clamp(84px, 11vw, 122px);
  padding-bottom: clamp(52px, 8vw, 96px);
  color: var(--paper);
  overflow-x: hidden;
}

.page-contact .yb-crumb {
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding-top: 0;
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
}

.page-contact .ct-hero__head {
  display: grid;
  gap: 16px;
  max-width: 60ch;
}

.page-contact .ct-hero__title {
  margin: 0;
  line-height: 1.08;
}

.page-contact .ct-hero__lede {
  margin: 0;
}

.page-contact .ct-hero__scale {
  height: 12px;
  margin-top: 4px;
  background-image: repeating-linear-gradient(90deg, var(--rule) 0 1px, transparent 1px 13px);
}

.page-contact .ct-hero__keys {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .ct-hero__keys li {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--dim);
  border: 1px solid var(--rule);
  border-radius: var(--r-cap);
  padding: 6px 13px;
  white-space: nowrap;
}

.page-contact .ct-hero__media {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 9;
  border-radius: var(--r-panel);
  overflow: hidden;
  border: 1px solid var(--rule);
  background: var(--panel);
}

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(.82) contrast(1.08) brightness(.86);
}

.page-contact .ct-cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--dim);
  background: linear-gradient(180deg, rgba(10, 14, 13, 0), rgba(10, 14, 13, .86));
}

@media (min-width: 940px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: 1.05fr .95fr;
  }
}

/* ---------- 章节表头 ---------- */
.page-contact .ct-sec-head {
  display: grid;
  gap: 12px;
  max-width: 66ch;
  margin-bottom: clamp(24px, 3.6vw, 44px);
}

.page-contact .ct-sec-head .yb-text {
  margin: 0;
}

/* ---------- 三块任务面板 ---------- */
.page-contact .ct-tasks__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
  align-items: stretch;
}

.page-contact .ct-task {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 48px 22px 24px;
  border: 1px solid var(--rule);
  border-radius: var(--r-panel);
  background: var(--panel);
  transition: border-color var(--dur) ease;
}

.page-contact .ct-task:hover,
.page-contact .ct-task:focus-within {
  border-color: var(--cyan);
}

.page-contact .ct-task__code {
  position: absolute;
  top: 0;
  left: 0;
  padding: 7px 15px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  border-radius: var(--r-panel) 0 12px 0;
  background: rgba(241, 243, 236, .04);
}

.page-contact .ct-task--a .ct-task__code { color: var(--clay); }
.page-contact .ct-task--b .ct-task__code { color: var(--cyan); }
.page-contact .ct-task--c .ct-task__code { color: var(--lime); }

.page-contact .ct-task .yb-h3 {
  margin: 0;
}

.page-contact .ct-task .yb-text {
  margin: 0;
}

.page-contact .ct-task__label {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--clay);
}

.page-contact .ct-task__label--off {
  color: var(--red);
}

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

.page-contact .ct-task__list li {
  position: relative;
  padding-left: 17px;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--dim);
}

.page-contact .ct-task__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .76em;
  width: 8px;
  height: 1.5px;
  background: var(--cyan);
}

.page-contact .ct-task__list--off {
  margin-top: auto;
}

.page-contact .ct-task__list--off li::before {
  background: var(--red);
}

@media (min-width: 880px) {
  .page-contact .ct-tasks__grid {
    grid-template-columns: 1.6fr 1.4fr 1fr;
  }
  .page-contact .ct-task {
    padding: 52px 24px 26px;
  }
  .page-contact .ct-task--c .ct-task__list li,
  .page-contact .ct-task--c .yb-text {
    font-size: 13px;
  }
}

/* ---------- 勘误材料 ---------- */
.page-contact .ct-erratum__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-contact .ct-erratum__main {
  display: grid;
  gap: 12px;
}

.page-contact .ct-erratum__main .yb-h2,
.page-contact .ct-erratum__main .yb-text {
  margin: 0;
}

.page-contact .ct-checklist {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-contact .ct-check {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.page-contact .ct-check__box {
  position: relative;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  transition: border-color var(--dur) ease;
}

.page-contact .ct-check:hover .ct-check__box,
.page-contact .ct-check:focus-within .ct-check__box {
  border-color: var(--cyan);
}

.page-contact .ct-check:hover .ct-check__box::after {
  content: "";
  position: absolute;
  inset: 5px;
  background: var(--cyan);
  border-radius: 1px;
}

.page-contact .ct-check__body {
  display: grid;
  gap: 4px;
}

.page-contact .ct-check__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--clay);
}

.page-contact .ct-check__title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .ct-check__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--dim);
  max-width: 52ch;
}

.page-contact .ct-erratum__media {
  position: relative;
  margin: 0;
  aspect-ratio: 1 / 1;
  border-radius: var(--r-panel);
  overflow: hidden;
  border: 1px solid var(--rule);
  background: var(--panel);
}

.page-contact .ct-erratum__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(.78) contrast(1.1) brightness(.8);
}

@media (min-width: 960px) {
  .page-contact .ct-erratum__grid {
    grid-template-columns: 1.2fr .8fr;
  }
  .page-contact .ct-erratum__media {
    position: sticky;
    top: 108px;
  }
}

/* ---------- 响应节奏 ---------- */
.page-contact .ct-response__card {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 40px);
  padding: var(--ct-pad);
  border: 1px solid var(--rule);
  border-radius: var(--r-panel);
  background:
    linear-gradient(140deg, var(--panel) 0%, rgba(16, 32, 27, .35) 58%, var(--ink) 100%);
}

.page-contact .ct-response__card::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 74px;
  height: 74px;
  border-left: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  border-radius: 0 var(--r-panel) 0 18px;
  background-image: repeating-linear-gradient(135deg, var(--rule) 0 1px, transparent 1px 9px);
  pointer-events: none;
}

.page-contact .ct-response__text {
  display: grid;
  gap: 12px;
  max-width: 62ch;
}

.page-contact .ct-response__text .yb-h2 {
  margin: 6px 0 0;
}

.page-contact .ct-response__text .yb-text {
  margin: 0;
}

.page-contact .ct-response__figure {
  display: grid;
  gap: 6px;
  align-content: center;
  padding: 22px 20px;
  border: 1px solid var(--rule);
  border-left: 2px solid var(--lime);
  border-radius: var(--r-panel);
  background: var(--glass);
}

.page-contact .ct-response__num {
  font-family: var(--font-mono);
  font-size: clamp(58px, 11vw, 96px);
  font-weight: 700;
  line-height: .9;
  letter-spacing: -0.02em;
  color: var(--lime);
}

.page-contact .ct-response__unit {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--paper);
}

.page-contact .ct-response__hard {
  font-size: 13px;
  line-height: 1.7;
  color: var(--dim-2);
}

@media (min-width: 860px) {
  .page-contact .ct-response__card {
    grid-template-columns: 1fr 268px;
    align-items: center;
  }
}

/* ---------- 引用规范 ---------- */
.page-contact .ct-license__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
}

.page-contact .ct-license__col {
  padding: 24px 22px 26px;
  border: 1px solid var(--rule);
  border-top: 2px solid var(--moss);
  border-radius: 4px 4px var(--r-panel) var(--r-panel);
  background: var(--panel);
}

.page-contact .ct-license__col--no {
  border-top-color: var(--red);
}

.page-contact .ct-license__title {
  margin: 0 0 16px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-contact .ct-license__col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .ct-license__col li {
  position: relative;
  padding-left: 19px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--dim);
}

.page-contact .ct-license__col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .8em;
  width: 9px;
  height: 1.5px;
  background: var(--moss);
}

.page-contact .ct-license__col--no li::before {
  background: var(--red);
}

@media (min-width: 780px) {
  .page-contact .ct-license__grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ---------- 联系渠道 ---------- */
.page-contact .ct-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
}

.page-contact .ct-channel {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 22px 20px 24px;
  border: 1px solid var(--rule);
  border-radius: var(--r-panel);
  background: var(--panel);
  transition: border-color var(--dur) ease;
}

.page-contact .ct-channel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--glass);
  pointer-events: none;
}

.page-contact .ct-channel > * {
  position: relative;
  z-index: 1;
}

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

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

.page-contact .ct-channel__title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--dim);
  letter-spacing: .04em;
}

.page-contact .ct-channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.4vw, 20px);
  line-height: 1.5;
  letter-spacing: .01em;
  color: var(--paper);
  word-break: break-word;
}

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

.page-contact .ct-channel__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.82;
  color: var(--dim-2);
}

.page-contact .ct-channels__foot {
  margin: clamp(20px, 2.8vw, 30px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
  font-size: 14px;
  line-height: 1.9;
  color: var(--dim);
  max-width: 72ch;
}

@media (min-width: 640px) {
  .page-contact .ct-channels__grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-contact .ct-channel--mail {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-contact .ct-channels__grid {
    grid-template-columns: 1.25fr 1fr 1.35fr;
  }
  .page-contact .ct-channel--mail {
    grid-column: auto;
  }
}

/* ---------- 相关页面 ---------- */
.page-contact .ct-related .yb-eyebrow {
  margin-bottom: 16px;
}

.page-contact .ct-related__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-contact .ct-related__list li {
  display: grid;
  gap: 4px;
  padding: 15px 0;
  border-bottom: 1px solid var(--rule);
}

.page-contact .ct-related__list .yb-link {
  font-size: 16px;
  font-weight: 700;
}

.page-contact .ct-related__list span {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--dim-2);
}

@media (min-width: 720px) {
  .page-contact .ct-related__list li {
    grid-template-columns: 190px 1fr;
    align-items: baseline;
    gap: 20px;
  }
}
<<<END>>>