.page-contact {
  --ct-gap: clamp(16px, 2.4vw, 24px);
  --ct-section-gap: clamp(48px, 7vw, 96px);
  --ct-radius: var(--radius-xl);
  padding-top: clamp(18px, 3vw, 40px);
  padding-bottom: clamp(48px, 8vw, 110px);
  background: var(--ink-black);
  color: var(--fog);
  overflow-x: hidden;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.06;
  margin: 0;
}

.page-contact h1 {
  font-size: clamp(34px, 6.4vw, 78px);
  margin-top: 14px;
}

.page-contact h2 {
  font-size: clamp(26px, 3.6vw, 50px);
}

.page-contact h3 {
  font-size: clamp(19px, 2.2vw, 25px);
  line-height: 1.25;
}

.page-contact p {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--sage);
}

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

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

.page-contact .breadcrumb {
  margin-bottom: clamp(16px, 2.4vw, 28px);
}

/* ---------- 首屏 ---------- */
.ct-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--ct-gap);
  padding: clamp(22px, 3.4vw, 44px);
  border-radius: var(--ct-radius);
  background:
    radial-gradient(120% 140% at 8% 0%, rgba(185, 255, 61, 0.10) 0%, rgba(7, 11, 9, 0) 58%),
    linear-gradient(160deg, var(--deep-green) 0%, var(--ink-black) 88%);
  box-shadow: var(--shadow-float);
}

.ct-hero__lead {
  margin-top: 18px;
  max-width: 46ch;
  color: var(--fog);
  font-size: clamp(16px, 1.15vw, 18px);
}

.ct-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.ct-hero__meta {
  margin-top: 18px;
  font-size: var(--fs-xs);
  color: var(--sage);
  letter-spacing: 0.02em;
}

.ct-hero__figure {
  margin: 0;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--board-green);
}

.ct-hero__figure img {
  display: block;
  width: 100%;
  height: clamp(200px, 34vw, 380px);
  object-fit: cover;
  filter: saturate(0.85) brightness(0.85);
}

.ct-hero__caption {
  position: absolute;
  left: 14px;
  bottom: 14px;
  right: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--fog);
  background: rgba(7, 11, 9, 0.72);
  border-left: 3px solid var(--pitch);
  border-radius: var(--radius-md);
  padding: 8px 12px;
}

/* ---------- 渠道清单 ---------- */
.ct-channels {
  margin-top: var(--ct-section-gap);
}

.ct-channels__note {
  max-width: 40ch;
  font-size: var(--fs-sm);
  color: var(--sage);
}

.ct-channel-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.ct-channel {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 12px;
  padding: clamp(20px, 3vw, 30px) 0;
  border-bottom: 1px solid var(--line);
  transition: background 0.3s var(--ease);
}

.ct-channel:hover {
  background: linear-gradient(90deg, rgba(185, 255, 61, 0.06) 0%, rgba(185, 255, 61, 0) 70%);
}

.ct-channel__idx {
  font-size: 15px;
  color: var(--ref-yellow);
  letter-spacing: 0.08em;
  padding-top: 4px;
}

.ct-channel__name {
  color: var(--fog);
  margin-bottom: 8px;
}

.ct-channel__value {
  display: inline-block;
  font-size: clamp(20px, 3.4vw, 40px);
  line-height: 1.15;
  color: var(--pitch);
  word-break: break-word;
  letter-spacing: -0.01em;
}

.ct-channel__value--text {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(18px, 2.4vw, 27px);
  color: var(--fog);
  line-height: 1.4;
}

.ct-channel__desc {
  margin-top: 12px;
  max-width: 52ch;
  font-size: var(--fs-sm);
}

.ct-channel .pill {
  display: inline-block;
  margin-top: 14px;
}

/* ---------- 合作类型 ---------- */
.ct-matrix {
  margin-top: var(--ct-section-gap);
}

.ct-matrix__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--ct-gap);
  margin-top: 22px;
}

.ct-cell {
  position: relative;
  padding: clamp(20px, 2.8vw, 32px);
  border-radius: var(--radius-lg);
  background: linear-gradient(170deg, var(--deep-green) 0%, var(--ink-black) 100%);
  border-top: 2px solid var(--board-green);
}

.ct-cell__num {
  display: block;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--ref-yellow);
  margin-bottom: 10px;
}

.ct-cell h3 {
  color: var(--fog);
  margin-bottom: 12px;
}

.ct-cell__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.ct-cell__list li {
  position: relative;
  padding-left: 16px;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  line-height: 1.65;
  color: var(--sage);
}

.ct-cell__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--pitch);
}

.ct-cell__link {
  display: inline-block;
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(185, 255, 61, 0.45);
}

/* ---------- 写信清单 ---------- */
.ct-letter {
  margin-top: var(--ct-section-gap);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--ct-gap);
  padding: clamp(20px, 3vw, 40px);
  border-radius: var(--ct-radius);
  background: var(--deep-green);
}

.ct-letter__figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.ct-letter__figure img {
  display: block;
  width: 100%;
  height: clamp(190px, 30vw, 420px);
  object-fit: cover;
  filter: brightness(0.9);
}

.ct-letter__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--sage);
}

.ct-letter__lead {
  margin-top: 14px;
  max-width: 48ch;
  font-size: var(--fs-sm);
}

.ct-fields {
  list-style: none;
  margin: 22px 0 24px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.ct-fields__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.ct-fields__key {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ref-yellow);
}

.ct-fields__val {
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  line-height: 1.65;
  color: var(--fog);
}

.ct-letter__tip {
  margin-top: 16px;
  font-size: var(--fs-xs);
  color: var(--sage);
}

/* ---------- 服务范围 ---------- */
.ct-scope {
  margin-top: var(--ct-section-gap);
}

.ct-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--ct-gap);
  margin-top: 22px;
}

.ct-stat {
  padding: 18px 16px;
  border-radius: var(--radius-md);
  background: var(--glass);
  border-left: 3px solid var(--pitch);
}

.ct-stat__num {
  display: block;
  font-size: clamp(30px, 4.6vw, 52px);
  line-height: 1;
  color: var(--fog);
  font-variant-numeric: tabular-nums;
}

.ct-stat__small {
  font-size: 0.5em;
  margin-left: 2px;
  color: var(--pitch);
}

.ct-stat__unit {
  display: block;
  margin-top: 6px;
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--ref-yellow);
}

.ct-stat p {
  margin-top: 10px;
  font-size: var(--fs-xs);
  line-height: 1.6;
}

.ct-scope__note {
  margin-top: var(--ct-gap);
  padding: clamp(20px, 3vw, 32px);
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, var(--board-green) 0%, var(--deep-green) 100%);
}

.ct-scope__note h3 {
  color: var(--fog);
  margin-bottom: 12px;
}

.ct-scope__note p + p {
  margin-top: 12px;
}

.ct-scope__note p {
  max-width: 62ch;
  font-size: var(--fs-sm);
  color: var(--fog);
}

/* ---------- 备案与地址 ---------- */
.ct-filing {
  margin-top: var(--ct-section-gap);
  padding: clamp(22px, 3.4vw, 40px);
  border-radius: var(--ct-radius) var(--ct-radius) var(--radius-md) var(--radius-md);
  background:
    linear-gradient(180deg, rgba(185, 255, 61, 0.07) 0%, rgba(185, 255, 61, 0) 46%),
    var(--ink-black);
  border: 1px solid var(--line);
}

.ct-filing__head h2 {
  margin-top: 12px;
}

.ct-filing__list {
  margin: 20px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.ct-filing__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

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

.ct-filing__val {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  line-height: 1.6;
  color: var(--fog);
  word-break: break-word;
}

.ct-filing__text {
  margin-top: 18px;
  font-size: var(--fs-sm);
  max-width: 62ch;
}

.ct-filing .btn {
  margin-top: 22px;
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .ct-channel {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 20px;
  }

  .ct-fields__row,
  .ct-filing__row {
    grid-template-columns: 130px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .ct-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: stretch;
    gap: clamp(24px, 3vw, 40px);
  }

  .ct-hero__text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: clamp(10px, 2vw, 28px) 0;
  }

  .ct-hero__figure img {
    height: 100%;
    min-height: 380px;
  }

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

  .ct-letter {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: clamp(24px, 3vw, 44px);
  }

  .ct-letter__figure img {
    height: clamp(320px, 36vw, 460px);
  }

  .ct-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .ct-scope__note {
    padding: clamp(26px, 3vw, 44px);
  }
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-channel {
    transition: none;
  }
}