.page-contact {
  --ct-space: clamp(2.25rem, 5.5vw, 4rem);
  --ct-gap: clamp(1rem, 2.4vw, 1.75rem);
  --ct-soft: rgba(232, 241, 245, 0.78);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 2.5rem) 0 clamp(1.75rem, 4.5vw, 3rem);
  background:
    radial-gradient(115% 75% at 90% 0%, rgba(47, 211, 224, 0.12), transparent 62%),
    radial-gradient(80% 60% at 4% 100%, rgba(255, 201, 60, 0.07), transparent 70%),
    linear-gradient(178deg, var(--grad-a) 0%, var(--grad-b) 62%, rgba(6, 26, 46, 0) 100%);
}

.page-contact .ct-hero h1 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.8rem, 5.4vw, 3.5rem);
  line-height: 1.16;
  letter-spacing: 0.005em;
  color: var(--mist);
  max-width: 19ch;
  margin: 0.3em 0 0.55em;
}

.page-contact .ct-hero__lede {
  max-width: 52ch;
  color: var(--ct-soft);
}

.page-contact .ct-hero__paths {
  display: grid;
  gap: var(--ct-gap);
  margin-top: clamp(1.5rem, 3.8vw, 2.5rem);
}

.page-contact .ct-path {
  position: relative;
  padding: clamp(1.15rem, 3vw, 1.85rem);
  background: linear-gradient(158deg, rgba(12, 43, 71, 0.94), rgba(6, 26, 46, 0.9));
  clip-path: var(--cut-corners);
  box-shadow: inset 0 0 0 1px var(--line);
}

.page-contact .ct-path--support {
  border-left: 3px solid var(--cyan);
}

.page-contact .ct-path--partner {
  border-left: 3px solid var(--signal);
  background: linear-gradient(158deg, rgba(14, 46, 74, 0.94), rgba(8, 28, 46, 0.92));
}

.page-contact .ct-path__head {
  display: grid;
  gap: 0.3rem;
}

.page-contact .ct-path__title {
  font-family: var(--font-head);
  font-size: clamp(1.12rem, 2.6vw, 1.4rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--mist);
  margin: 0;
}

.page-contact .ct-path__tag {
  font-family: var(--font-head);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin: 0;
}

.page-contact .ct-path--support .ct-path__tag {
  color: var(--cyan);
}

.page-contact .ct-path--partner .ct-path__tag {
  color: var(--signal);
}

.page-contact .ct-path__list {
  list-style: none;
  margin: clamp(0.9rem, 2.2vw, 1.25rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-contact .ct-path__list li {
  position: relative;
  padding-left: 1.35rem;
  font-size: 0.94rem;
  line-height: 1.72;
  color: var(--ct-soft);
}

.page-contact .ct-path__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 0.6rem;
  height: 1px;
  background: var(--cyan);
}

.page-contact .ct-path--partner .ct-path__list li::before {
  background: var(--signal);
}

.page-contact .ct-channels {
  display: grid;
  gap: 0.6rem;
  margin-top: clamp(1rem, 2.4vw, 1.35rem);
  padding-top: clamp(0.85rem, 2vw, 1.15rem);
  border-top: 1px solid var(--line-soft);
}

.page-contact .ct-channel {
  display: grid;
  gap: 0.2rem;
  margin: 0;
}

.page-contact .ct-channel__label {
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.page-contact .ct-channel__value {
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 2.2vw, 1.02rem);
  letter-spacing: 0.01em;
  color: var(--signal);
  word-break: break-all;
  line-height: 1.5;
}

.page-contact .ct-path--support .ct-channel__value {
  color: var(--mist);
}

/* ---------- 图片 ---------- */
.page-contact .ct-figure {
  margin: clamp(1.75rem, 4.2vw, 3rem) 0 0;
}

.page-contact .ct-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: var(--cut-corners);
  background: var(--panel);
}

.page-contact .ct-figure figcaption {
  margin-top: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}

/* ---------- 章节 ---------- */
.page-contact .ct-section {
  padding-top: var(--ct-space);
}

.page-contact .ct-section__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(0.7rem, 2vw, 1.4rem);
  align-items: start;
  padding-top: clamp(0.85rem, 2vw, 1.2rem);
  border-top: 1px solid var(--line);
}

.page-contact .ct-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.4rem, 3.4vw, 2.3rem);
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

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

.page-contact .ct-section__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.3rem, 3.6vw, 2.1rem);
  line-height: 1.24;
  letter-spacing: 0.01em;
  color: var(--mist);
  margin: 0;
}

.page-contact .ct-section__intro {
  margin: 0.6rem 0 0;
  max-width: 44ch;
  font-size: 0.96rem;
  line-height: 1.78;
  color: var(--ct-soft);
}

/* ---------- 受理范围 ---------- */
.page-contact .ct-matters {
  display: grid;
  gap: 1px;
  margin-top: clamp(1.4rem, 3.4vw, 2.2rem);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-matter {
  display: grid;
  align-content: start;
  gap: 0.5rem;
  padding: clamp(1.05rem, 2.6vw, 1.6rem);
  background: var(--ink);
}

.page-contact .ct-matter__title {
  font-family: var(--font-head);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.015em;
  color: var(--mist);
  margin: 0;
}

.page-contact .ct-matter__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.76;
  color: var(--ct-soft);
}

.page-contact .ct-matter__link {
  justify-self: start;
  margin-top: 0.2rem;
  font-family: var(--font-head);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 0.15rem;
  transition: color 240ms var(--ease), border-color 240ms var(--ease);
}

.page-contact .ct-matter__link:hover,
.page-contact .ct-matter__link:focus-visible {
  color: var(--signal);
  border-color: var(--signal);
}

.page-contact .ct-matter__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 协作流程 ---------- */
.page-contact .ct-flow {
  position: relative;
  display: grid;
  gap: 1.6rem;
  margin-top: clamp(1.4rem, 3.4vw, 2.2rem);
}

.page-contact .ct-step {
  position: relative;
  padding-left: 3.5rem;
}

.page-contact .ct-step::after {
  content: "";
  position: absolute;
  left: 1.14rem;
  top: 2.5rem;
  bottom: -1.6rem;
  width: 1px;
  background: linear-gradient(180deg, var(--signal), rgba(255, 201, 60, 0.15));
}

.page-contact .ct-step:last-of-type::after {
  display: none;
}

.page-contact .ct-step__num {
  position: absolute;
  left: 0;
  top: 0;
  width: 2.28rem;
  height: 2.28rem;
  display: grid;
  place-items: center;
  background: var(--signal);
  color: var(--ink);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-contact .ct-step__summary {
  list-style: none;
  cursor: pointer;
  display: block;
  min-height: 2.28rem;
  padding-top: 0.32rem;
}

.page-contact .ct-step__summary::-webkit-details-marker {
  display: none;
}

.page-contact .ct-step__summary::marker {
  content: "";
}

.page-contact .ct-step__title {
  font-family: var(--font-head);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--mist);
  transition: color 240ms var(--ease);
}

.page-contact .ct-step__title::after {
  content: "＋";
  margin-left: 0.5em;
  font-size: 0.82em;
  font-weight: 400;
  color: var(--cyan);
  opacity: 0.75;
}

.page-contact .ct-step[open] .ct-step__title {
  color: var(--signal);
}

.page-contact .ct-step[open] .ct-step__title::after {
  content: "－";
  color: var(--signal);
}

.page-contact .ct-step__summary:hover .ct-step__title,
.page-contact .ct-step__summary:focus-visible .ct-step__title {
  color: var(--signal);
}

.page-contact .ct-step__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .ct-step__body {
  margin: 0.65rem 0 0;
  font-size: 0.91rem;
  line-height: 1.78;
  color: var(--ct-soft);
}

.page-contact .ct-subhead {
  margin: clamp(2rem, 4.6vw, 3rem) 0 0;
  font-family: var(--font-head);
  font-size: clamp(1rem, 2.4vw, 1.2rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

.page-contact .ct-prep {
  display: grid;
  gap: 0.7rem;
  margin-top: clamp(0.9rem, 2.2vw, 1.25rem);
}

.page-contact .ct-prep__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.85rem;
  align-items: baseline;
  margin: 0;
  padding: 0.9rem 1.1rem;
  background: var(--graphite);
  clip-path: var(--cut-corners);
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .ct-prep__key {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- 地址与备案 ---------- */
.page-contact .ct-legal {
  display: grid;
  gap: 1rem;
  margin-top: clamp(1.4rem, 3.4vw, 2.2rem);
  padding: clamp(1.3rem, 3.4vw, 2.2rem);
  background: var(--graphite);
  clip-path: var(--cut-corners);
  box-shadow: inset 0 0 0 1px rgba(132, 150, 166, 0.22);
}

.page-contact .ct-legal__row {
  display: grid;
  gap: 0.32rem;
  padding-bottom: 0.95rem;
  border-bottom: 1px solid rgba(132, 150, 166, 0.2);
}

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

.page-contact .ct-legal__key {
  font-family: var(--font-head);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--muted);
}

.page-contact .ct-legal__val {
  font-family: var(--font-mono);
  font-size: clamp(0.92rem, 2.2vw, 1.04rem);
  line-height: 1.6;
  color: var(--mist);
  word-break: break-word;
}

/* ---------- 自助入口 ---------- */
.page-contact .ct-consult {
  display: grid;
  gap: var(--ct-gap);
  margin-top: clamp(1.4rem, 3.4vw, 2.2rem);
}

.page-contact .ct-consult__card {
  display: grid;
  align-content: start;
  gap: 0.55rem;
  padding: clamp(1.1rem, 2.8vw, 1.6rem);
  background: linear-gradient(170deg, rgba(12, 43, 71, 0.72), rgba(6, 26, 46, 0.35));
  clip-path: var(--cut-corners);
  box-shadow: inset 0 0 0 1px var(--line);
  color: inherit;
  text-decoration: none;
  transition: transform 260ms var(--ease), box-shadow 260ms var(--ease);
}

.page-contact .ct-consult__card:hover,
.page-contact .ct-consult__card:focus-visible {
  transform: translateY(-2px);
  box-shadow: inset 0 0 0 1px var(--line-strong);
}

.page-contact .ct-consult__card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .ct-consult__title {
  font-family: var(--font-head);
  font-size: 1.04rem;
  font-weight: 700;
  letter-spacing: 0.015em;
  color: var(--mist);
  margin: 0;
}

.page-contact .ct-consult__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.76;
  color: var(--ct-soft);
}

.page-contact .ct-consult__more {
  margin-top: 0.25rem;
  font-family: var(--font-head);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--signal);
}

.page-contact .ct-consult__more::after {
  content: " →";
}

.page-contact .ct-note {
  margin: clamp(1.5rem, 3.6vw, 2.2rem) 0 0;
  max-width: 62ch;
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .ct-note a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .ct-note a:hover,
.page-contact .ct-note a:focus-visible {
  color: var(--signal);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .ct-matters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .ct-legal {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.3rem 2.4rem;
  }

  .page-contact .ct-legal__row {
    padding-bottom: 0;
    border-bottom: 0;
  }
}

@media (min-width: 860px) {
  .page-contact .ct-hero__paths {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

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

  .page-contact .ct-figure--hero {
    margin-top: clamp(2.25rem, 5vw, 3.5rem);
  }
}

@media (min-width: 940px) {
  .page-contact .ct-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    margin-top: clamp(2rem, 4.6vw, 3rem);
  }

  .page-contact .ct-flow::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 1.14rem;
    height: 1px;
    background: linear-gradient(90deg, var(--signal) 0%, var(--signal) 58%, rgba(255, 201, 60, 0.18) 100%);
  }

  .page-contact .ct-step {
    padding: 0 1.4rem 0 0;
  }

  .page-contact .ct-step::after {
    display: none;
  }

  .page-contact .ct-step__summary {
    min-height: 0;
    padding-top: 3.05rem;
  }

  .page-contact .ct-step__body {
    margin-top: 0.75rem;
    padding-right: 0.4rem;
  }

  .page-contact .ct-subhead {
    margin-top: clamp(2.4rem, 5vw, 3.5rem);
  }
}

@media (min-width: 1100px) {
  .page-contact .ct-hero h1 {
    max-width: 17ch;
  }

  .page-contact .ct-section__head {
    gap: clamp(1rem, 2.4vw, 2rem);
  }
}

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

  .page-contact .ct-consult__card:hover,
  .page-contact .ct-consult__card:focus-visible {
    transform: none;
  }
}