.page-contact {
  --ct-anchor-top: 64px;
  background: var(--ink-900);
  color: var(--white);
  overflow-x: hidden;
}

.page-contact img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-contact section[id] {
  scroll-margin-top: 140px;
}

.page-contact .m6-label {
  color: var(--amber);
}

/* ============ 首屏 ============ */
.ct-hero {
  position: relative;
  padding: clamp(1.4rem, 3vw, 2.4rem) 0 clamp(2.2rem, 5vw, 3.6rem);
  background:
    radial-gradient(120% 90% at 86% 4%, rgba(255, 106, 19, .24), transparent 58%),
    radial-gradient(90% 80% at 4% 98%, rgba(47, 209, 255, .18), transparent 62%),
    linear-gradient(180deg, var(--ink-950) 0%, var(--ink-900) 100%);
  overflow: hidden;
}

.ct-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -34%;
  width: min(48vw, 520px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 176, 58, .2), transparent 66%);
  pointer-events: none;
}

.ct-hero .m6-breadcrumb {
  position: relative;
  z-index: 1;
}

.ct-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 3vw, 2.6rem);
  align-items: center;
  margin-top: clamp(.9rem, 2.4vw, 1.8rem);
}

.ct-hero__lead {
  position: relative;
  z-index: 1;
}

.ct-hero__title {
  margin: .4rem 0 .85rem;
  letter-spacing: -.035em;
  color: var(--white);
}

.ct-hero__lede {
  max-width: 34rem;
  margin: 0 0 1.5rem;
  color: var(--ink-text);
  font-family: var(--font-serif);
  font-size: clamp(1.02rem, 1.5vw, 1.2rem);
  line-height: 1.9;
}

.ct-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

.ct-hero__media {
  border: 1px solid var(--line);
  border-radius: var(--r-organic);
  overflow: hidden;
  background: linear-gradient(160deg, var(--ink-800), var(--ink-950));
  margin: 0;
}

.ct-hero__media img {
  width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.ct-hero .m6-media__cap {
  padding: .7rem 1.1rem;
}

/* ============ 锚点条 ============ */
.ct-anchor {
  position: sticky;
  top: var(--ct-anchor-top);
  z-index: 5;
  background: rgba(6, 23, 19, .94);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.ct-anchor__inner {
  display: flex;
  align-items: center;
  gap: .9rem;
  padding-top: .55rem;
  padding-bottom: .55rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.ct-anchor__inner::-webkit-scrollbar {
  display: none;
}

.ct-anchor__label {
  flex: 0 0 auto;
  color: var(--muted);
}

.ct-anchor__list {
  display: flex;
  gap: .4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ct-anchor__link {
  display: inline-block;
  padding: .35rem .85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-text);
  font-size: .8125rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.ct-anchor__link:hover,
.ct-anchor__link:focus-visible {
  color: var(--white);
  border-color: rgba(255, 106, 19, .6);
  background: rgba(255, 106, 19, .16);
}

/* ============ 区块标题 ============ */
.ct-head {
  max-width: 46rem;
}

.ct-head h2 {
  margin: .5rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -.02em;
  font-size: clamp(1.6rem, 3.6vw, 2.6rem);
  line-height: 1.15;
  color: var(--white);
}

.ct-head__text {
  margin: .8rem 0 0;
  color: var(--ink-text);
  font-size: 1.02rem;
  line-height: 1.8;
}

/* ============ 三块渠道卡 ============ */
.ct-channels {
  background: var(--ink-900);
}

.ct-channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1rem, 2vw, 1.4rem);
  margin-top: clamp(1.6rem, 3vw, 2.4rem);
}

.ct-channel {
  display: flex;
  flex-direction: column;
  gap: .7rem;
  padding: clamp(1.2rem, 2.4vw, 1.75rem);
  border-radius: var(--r-organic);
  border: 1px solid transparent;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.ct-channel:hover,
.ct-channel:focus-within {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.ct-channel--orange {
  background: linear-gradient(158deg, var(--orange) 0%, var(--amber) 118%);
  color: var(--ink-950);
}

.ct-channel--blue {
  background: linear-gradient(158deg, var(--blue) 0%, #8FE7FF 118%);
  color: var(--ink-950);
}

.ct-channel--mist {
  background: linear-gradient(158deg, var(--mist) 0%, #C9DED6 118%);
  color: var(--ink-900);
  border-color: rgba(11, 43, 36, .12);
}

.ct-channel__label {
  color: currentColor;
  opacity: .72;
}

.ct-channel__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.4vw, 1.6rem);
  font-weight: 800;
  letter-spacing: -.02em;
  color: inherit;
}

.ct-channel__body {
  margin: 0;
  font-size: .95rem;
  line-height: 1.8;
  color: inherit;
  opacity: .88;
}

.ct-channel__value {
  margin: .2rem 0;
  padding: .5rem .7rem;
  border-radius: var(--r-soft);
  background: rgba(6, 23, 19, .14);
  font-size: .95rem;
  letter-spacing: .01em;
  word-break: break-all;
  color: inherit;
}

.ct-channel__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .4rem;
  font-size: .9rem;
}

.ct-channel__list li {
  position: relative;
  padding-left: 1.1rem;
  line-height: 1.6;
  color: inherit;
  opacity: .85;
}

.ct-channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .55em;
  width: .45rem;
  height: .45rem;
  border-radius: 50%;
  background: currentColor;
  opacity: .65;
}

.ct-channel__foot {
  margin: auto 0 0;
  padding-top: .6rem;
}

.ct-channel--orange .m6-btn--ghost,
.ct-channel--blue .m6-btn--ghost,
.ct-channel--mist .m6-btn--ghost {
  color: var(--ink-950);
  border-color: rgba(6, 23, 19, .45);
  background: rgba(255, 255, 255, .32);
}

.ct-channel--orange .m6-btn--ghost:hover,
.ct-channel--blue .m6-btn--ghost:hover,
.ct-channel--mist .m6-btn--ghost:hover {
  background: var(--ink-950);
  color: var(--amber);
  border-color: var(--ink-950);
}

/* ============ 事项归属 ============ */
.ct-route-section {
  background: linear-gradient(180deg, var(--ink-900), var(--ink-950));
}

.ct-route {
  margin: clamp(1.6rem, 3vw, 2.4rem) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.ct-route__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: .5rem;
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--line);
}

.ct-route__topic {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.08rem;
  color: var(--white);
}

.ct-route__tag {
  display: flex;
  align-items: center;
}

.ct-route__note {
  color: var(--ink-text);
  font-size: .94rem;
  line-height: 1.75;
}

/* ============ 提交指引（明暗反转） ============ */
.ct-submit {
  background: var(--mist);
  color: var(--ink-900);
}

.ct-submit .m6-label {
  color: #B2430A;
}

.ct-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 3vw, 2.6rem);
  align-items: start;
}

.ct-submit__main h2 {
  margin: .5rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -.02em;
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  line-height: 1.15;
  color: var(--ink-900);
}

.ct-submit__text {
  margin: 1rem 0 0;
  font-size: 1.02rem;
  line-height: 1.85;
  color: #33544A;
}

.ct-submit__steps {
  margin: clamp(1.2rem, 2.6vw, 1.8rem) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.ct-submit__step {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: .55rem .9rem;
  padding: 1rem 0;
  border-top: 1px dashed rgba(11, 43, 36, .26);
}

.ct-submit__step:last-child {
  border-bottom: 1px dashed rgba(11, 43, 36, .26);
}

.ct-submit__index {
  color: #B2430A;
  font-size: 1rem;
  padding-top: .15rem;
}

.ct-submit__body {
  font-size: .97rem;
  line-height: 1.8;
  color: #24443B;
}

.ct-submit__body strong {
  display: block;
  color: var(--ink-900);
  font-size: 1rem;
  margin-bottom: .15rem;
}

/* ============ 虚线提示框 ============ */
.ct-hint {
  padding: clamp(1.2rem, 2.4vw, 1.7rem);
  border: 1.5px dashed rgba(11, 43, 36, .4);
  border-radius: var(--r-organic);
  background: rgba(255, 255, 255, .62);
}

.ct-hint__title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--ink-900);
}

.ct-hint__block {
  padding: .85rem 0;
  border-top: 1px solid rgba(11, 43, 36, .16);
}

.ct-hint__name {
  display: inline-block;
  margin: 0 0 .45rem;
  padding: .18rem .6rem;
  border-radius: 999px;
  background: var(--ink-900);
  color: var(--amber);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .06em;
}

.ct-hint__value {
  margin: 0 0 .5rem;
  font-size: .95rem;
  color: #B2430A;
  word-break: break-all;
}

.ct-hint__desc {
  margin: 0;
  font-size: .93rem;
  line-height: 1.78;
  color: #33544A;
}

.ct-hint__foot {
  margin: 1rem 0 0;
  padding-top: .9rem;
  border-top: 1px dashed rgba(11, 43, 36, .3);
  font-size: .88rem;
  line-height: 1.7;
  color: #3C5C52;
}

/* ============ 协作与场馆 ============ */
.ct-coop {
  background:
    radial-gradient(90% 70% at 12% 0%, rgba(47, 209, 255, .14), transparent 60%),
    var(--ink-900);
}

.ct-coop__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 3vw, 2.6rem);
  align-items: center;
}

.ct-coop__text h2 {
  margin: .5rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -.02em;
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  line-height: 1.15;
  color: var(--white);
}

.ct-coop__body {
  margin: 1rem 0 0;
  color: var(--ink-text);
  font-size: 1rem;
  line-height: 1.85;
}

.ct-coop__list {
  margin: 1.3rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .75rem;
}

.ct-coop__list li {
  padding: .8rem 1rem;
  border-left: 3px solid var(--blue);
  border-radius: 0 var(--r-soft) var(--r-soft) 0;
  background: var(--ink-800);
  color: var(--ink-text);
  font-size: .95rem;
  line-height: 1.75;
}

.ct-coop__list strong {
  color: var(--white);
}

.ct-coop__foot {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin: 1.5rem 0 0;
}

.ct-coop__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-organic);
  overflow: hidden;
  background: linear-gradient(160deg, var(--ink-800), var(--ink-950));
}

.ct-coop__media img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ============ 响应节奏 ============ */
.ct-rhythm-section {
  background: var(--ink-950);
}

.ct-rhythm {
  margin-top: clamp(1.6rem, 3vw, 2.4rem);
}

.ct-rhythm .m6-timeline__item {
  padding-bottom: 1.6rem;
}

.ct-rhythm .m6-timeline__body h3 {
  margin: .25rem 0 .4rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--white);
}

.ct-rhythm .m6-timeline__body p {
  margin: 0;
  color: var(--ink-text);
  font-size: .95rem;
  line-height: 1.8;
  max-width: 42rem;
}

.ct-rhythm .m6-timeline__time {
  color: var(--amber);
  font-size: .9rem;
  letter-spacing: .02em;
}

.ct-rhythm .m6-timeline__item[data-current] .m6-timeline__dot {
  box-shadow: 0 0 0 6px rgba(255, 106, 19, .18);
}

/* ============ 站点信息窄带 ============ */
.ct-strip {
  padding: clamp(1.6rem, 3vw, 2.4rem) 0;
  background: var(--ink-950);
  border-top: 3px solid var(--orange);
  border-bottom: 1px solid var(--line);
}

.ct-strip__title {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: .01em;
  color: var(--white);
}

.ct-strip__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: .9rem 1.6rem;
  margin: 0;
}

.ct-strip__item {
  padding-left: .85rem;
  border-left: 2px solid rgba(255, 106, 19, .6);
}

.ct-strip__item dt {
  margin: 0 0 .3rem;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--muted);
}

.ct-strip__item dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .93rem;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

.ct-strip__note {
  margin: 1.4rem 0 0;
  font-size: .88rem;
  line-height: 1.8;
  color: var(--ink-text);
}

.ct-strip__link {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: .2em;
}

.ct-strip__link:hover,
.ct-strip__link:focus-visible {
  color: var(--amber);
}

/* ============ 响应式 ============ */
@media (min-width: 720px) {
  .ct-channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 780px) {
  .ct-route__row {
    grid-template-columns: 11rem 9rem minmax(0, 1fr);
    align-items: baseline;
    gap: .4rem 1.2rem;
  }
}

@media (min-width: 1000px) {
  .ct-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  }

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

  .ct-channel--orange {
    margin-top: 0;
  }

  .ct-channel--blue {
    margin-top: 1.6rem;
  }

  .ct-channel--mist {
    margin-top: .8rem;
  }

  .ct-split {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }

  .ct-coop__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

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

@media (min-width: 1180px) {
  .ct-strip__list {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

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

  .page-contact .ct-channel:hover {
    transform: none;
  }
}