.page-contact {
  --pc-gap: clamp(1rem, 2.4vw, 1.75rem);
  --pc-pad: clamp(3rem, 7vw, 5.5rem);
  background: var(--c-deep);
  color: var(--ink);
  font-family: var(--font-serif);
  line-height: 1.85;
  overflow-x: clip;
}

.page-contact p { margin: 0; }

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--ink);
}

.page-contact h2 { font-size: clamp(1.45rem, 4vw, 2.25rem); }
.page-contact h3 { font-size: clamp(1rem, 2vw, 1.12rem); }

.page-contact .num { font-family: var(--font-mono); }

.page-contact .crumbs { font-family: var(--font-mono); font-size: 0.76rem; color: var(--ink-mute); }
.page-contact .crumbs__link { color: var(--c-glass); text-decoration: none; border-bottom: 1px solid transparent; transition: border-color 0.2s var(--ease); }
.page-contact .crumbs__link:hover { border-bottom-color: var(--c-coral); }
.page-contact .crumbs__sep { margin: 0 0.45rem; color: var(--c-tide); }

.page-contact .section__head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2.5rem;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: clamp(1.5rem, 3.5vw, 2.5rem);
}
.page-contact .section__head-main { max-width: 40rem; }
.page-contact .section__head h2 { margin-top: 0.35rem; }

/* ---------- HERO ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(1.5rem, 4vw, 2.5rem) 0 clamp(3rem, 7vw, 5rem);
  background:
    radial-gradient(110% 80% at 88% -10%, rgba(23, 78, 107, 0.72), transparent 62%),
    radial-gradient(70% 60% at 4% 20%, rgba(255, 107, 74, 0.10), transparent 70%),
    linear-gradient(180deg, var(--c-deep) 0%, var(--c-night) 100%);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}

.page-contact .contact-hero__title {
  margin-top: 0.75rem;
  font-size: clamp(2.15rem, 8vw, 4.4rem);
  letter-spacing: -0.025em;
  line-height: 1.02;
}

.page-contact .contact-hero__lede {
  margin-top: 1.35rem;
  max-width: 34rem;
  font-size: clamp(0.98rem, 1.6vw, 1.08rem);
  line-height: 1.95;
  color: var(--ink-soft);
}

.page-contact .contact-hero__quick {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  margin: 2rem 0 0;
  padding: 0;
}

.page-contact .contact-hero__quick li {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding-left: 0.85rem;
  border-left: 2px solid var(--c-coral);
}

.page-contact .contact-hero__quick-num {
  font-size: 1.1rem;
  color: var(--c-amber);
  letter-spacing: 0.01em;
}

.page-contact .contact-hero__quick li span:last-child {
  font-family: var(--font-display);
  font-size: 0.78rem;
  color: var(--ink-mute);
  letter-spacing: 0.02em;
}

/* ---------- 写信模板面板 ---------- */
.page-contact .compose {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-strong);
  background: linear-gradient(160deg, rgba(23, 78, 107, 0.7), rgba(6, 24, 38, 0.82));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--island-shadow);
}

.page-contact .compose::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 96px;
  height: 3px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(90deg, var(--c-coral), var(--c-amber));
}

.page-contact .compose .eye-line {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--c-palm);
  text-transform: uppercase;
}

.page-contact .compose__title { font-size: clamp(1.1rem, 2.4vw, 1.3rem); }

.page-contact .compose__hint {
  font-size: 0.86rem;
  line-height: 1.8;
  color: var(--ink-mute);
}

.page-contact .compose__fields { margin: 0; display: grid; gap: 0.55rem; }

.page-contact .compose__row {
  display: grid;
  grid-template-columns: 4.6rem 1fr;
  gap: 0.7rem;
  align-items: baseline;
  padding-bottom: 0.55rem;
  border-bottom: 1px dashed var(--line);
}

.page-contact .compose__row dt {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--c-amber);
}

.page-contact .compose__row dd {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-contact .compose__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0.35rem;
}

.page-contact .compose__send {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-pill);
  background: var(--c-coral);
  color: var(--c-deep);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  border: 1px solid var(--c-coral);
  transition: transform 0.2s var(--ease), background 0.2s var(--ease);
}

.page-contact .compose__send:hover { transform: translateY(-2px); background: #ff8467; }

.page-contact .copy-btn { font-family: var(--font-display); }

/* ---------- 反馈通道 ---------- */
.page-contact .contact-routes {
  position: relative;
  padding: clamp(3rem, 7vw, 5.5rem) 0;
  background: linear-gradient(180deg, var(--c-night) 0%, var(--c-deep) 100%);
}

.page-contact .contact-routes__note {
  max-width: 22rem;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--ink-mute);
}

.page-contact .routes-visual {
  position: relative;
  margin: 0 0 clamp(1.5rem, 3.5vw, 2.5rem);
  height: clamp(160px, 26vw, 280px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-contact .routes-visual img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.72;
}

.page-contact .routes-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 24, 38, 0.15), rgba(6, 24, 38, 0.78));
}

.page-contact .routes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
}

.page-contact .route-card {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  padding: clamp(1.25rem, 2.6vw, 1.8rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--c-night);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-contact .route-card:hover { border-color: var(--c-coral); transform: translateY(-2px); }

.page-contact .route-card--a { border-top: 3px solid var(--c-coral); }
.page-contact .route-card--b { border-top: 3px solid var(--c-amber); }
.page-contact .route-card--c { border-top: 3px solid var(--c-palm); }

.page-contact .route-card__index {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  font-size: 0.78rem;
  color: var(--c-amber);
}

.page-contact .route-card p {
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .route-card__meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--c-glass);
  word-break: break-all;
  letter-spacing: 0.01em;
}

.page-contact .route-card .copy-btn { align-self: flex-start; }

.page-contact .route-card__link {
  align-self: flex-start;
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--c-palm);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease);
}

.page-contact .route-card__link:hover { border-bottom-color: var(--c-palm); }

/* ---------- 时段 ---------- */
.page-contact .contact-hours {
  padding: var(--pc-pad) 0;
  background: var(--c-deep);
}

.page-contact .contact-hours__grid { align-items: start; gap: clamp(2rem, 5vw, 3rem); }

.page-contact .contact-hours__lede {
  margin-top: 1rem;
  font-size: 0.96rem;
  line-height: 1.95;
  color: var(--ink-soft);
  max-width: 36rem;
}

.page-contact .hours-list {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-contact .hours-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  align-items: start;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-contact .hours-list strong { color: var(--ink); font-family: var(--font-display); font-weight: 700; }

.page-contact .hours-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: clamp(1.1rem, 2.6vw, 1.6rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, var(--c-night), var(--c-dusk));
}

.page-contact .hours-scale { display: flex; flex-direction: column; gap: 0.55rem; }

.page-contact .hours-scale__ticks {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--ink-mute);
}

.page-contact .hours-scale__track {
  position: relative;
  height: 16px;
  border-radius: var(--radius-pill);
  background: rgba(23, 78, 107, 0.85);
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .hours-scale__fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 16.6%;
  width: 66.7%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--c-palm), var(--c-amber) 55%, var(--c-coral));
}

.page-contact .hours-scale__legend {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--c-amber);
}

.page-contact .hours-scale__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-coral);
}

.page-contact .hours-figure img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
  object-fit: cover;
}

.page-contact .hours-figure figcaption {
  font-family: var(--font-display);
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--ink-mute);
}

/* ---------- 怎么写 ---------- */
.page-contact .contact-guide {
  padding: var(--pc-pad) 0;
  background: linear-gradient(180deg, var(--c-deep), var(--c-night));
}

.page-contact .guide-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
}

.page-contact .guide-item {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line-strong);
}

.page-contact .guide-item__num {
  font-size: 1.6rem;
  line-height: 1;
  color: var(--c-amber);
}

.page-contact .guide-item p {
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 合作与纠错 ---------- */
.page-contact .contact-partner {
  padding: var(--pc-pad) 0;
  background: var(--c-night);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-partner__grid { align-items: start; gap: clamp(2rem, 5vw, 3rem); }

.page-contact .contact-partner__intro p {
  margin-top: 1rem;
  font-size: 0.95rem;
  line-height: 1.95;
  color: var(--ink-soft);
  max-width: 34rem;
}

.page-contact .contact-partner__hint { color: var(--c-palm); font-size: 0.88rem; }

.page-contact .partner-fold { display: grid; gap: 0.6rem; }

.page-contact .fold {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(6, 24, 38, 0.6);
  overflow: hidden;
  transition: border-color 0.2s var(--ease);
}

.page-contact .fold[open] { border-color: var(--c-coral); }

.page-contact .fold__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 52px;
  padding: 0.85rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--ink);
}

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

.page-contact .fold__sign {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
}

.page-contact .fold__sign::before,
.page-contact .fold__sign::after {
  content: "";
  position: absolute;
  background: var(--c-coral);
  transition: transform 0.2s var(--ease);
}

.page-contact .fold__sign::before { inset: 6px 0 6px 0; }
.page-contact .fold__sign::after { inset: 0 6px 0 6px; }

.page-contact .fold[open] .fold__sign::after { transform: scaleY(0); }

.page-contact .fold__body {
  padding: 0 1.1rem 1.1rem;
  font-size: 0.88rem;
  line-height: 1.9;
  color: var(--ink-soft);
}

/* ---------- 处理流程 ---------- */
.page-contact .contact-flow { padding: var(--pc-pad) 0; background: var(--c-deep); }

.page-contact .contact-flow__note {
  max-width: 20rem;
  font-size: 0.86rem;
  line-height: 1.8;
  color: var(--ink-mute);
}

.page-contact .flow-strip {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-contact .flow-strip__step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.15rem 1.15rem 1.15rem 1.35rem;
  border-radius: var(--radius-md);
  background: linear-gradient(150deg, rgba(23, 78, 107, 0.55), rgba(6, 24, 38, 0.9));
  border: 1px solid var(--line);
}

.page-contact .flow-strip__step::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  border-radius: 3px 0 0 3px;
  background: linear-gradient(180deg, var(--c-amber), var(--c-coral));
}

.page-contact .flow-strip__num {
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--c-amber);
}

.page-contact .flow-strip__step p {
  font-size: 0.87rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 联系方式 ---------- */
.page-contact .contact-details {
  padding: var(--pc-pad) 0;
  background: linear-gradient(180deg, var(--c-night), var(--c-deep));
}

.page-contact .contact-details__grid { align-items: start; gap: clamp(2rem, 5vw, 3rem); }

.page-contact .contact-details__intro p {
  margin-top: 1rem;
  font-size: 0.95rem;
  line-height: 1.95;
  color: var(--ink-soft);
  max-width: 32rem;
}

.page-contact .contact-details__note {
  font-family: var(--font-display);
  font-size: 0.84rem;
  color: var(--c-palm);
}

.page-contact .coord-card {
  border-radius: var(--radius-lg);
  padding: clamp(1.1rem, 2.6vw, 1.75rem);
  border: 1px solid var(--line-strong);
  background: var(--c-night);
}

.page-contact .coord-list { margin: 0; display: grid; gap: 0.1rem; }

.page-contact .coord-list__row {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "key act"
    "val act";
  gap: 0.2rem 0.75rem;
  padding: 0.85rem 0;
  border-bottom: 1px dashed var(--line);
  align-items: center;
}

.page-contact .coord-list__row:last-child { border-bottom: 0; }

.page-contact .coord-list__row dt {
  grid-area: key;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--ink-mute);
}

.page-contact .coord-list__row dd {
  grid-area: val;
  margin: 0;
  font-family: var(--font-display);
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .coord-list__row dd a {
  color: var(--c-glass);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact .coord-list__row dd a:hover { color: var(--c-coral); border-bottom-color: var(--c-coral); }

.page-contact .coord-list__row dd.num { font-family: var(--font-mono); font-size: 0.9rem; color: var(--c-amber); }

.page-contact .coord-list__act { grid-area: act; justify-self: end; }

.page-contact .coord-list__act--mute {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-mute);
}

/* ---------- 隐私提示 ---------- */
.page-contact .contact-legal {
  padding: 0 0 clamp(3rem, 7vw, 5rem);
  background: var(--c-deep);
}

.page-contact .legal-box {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(244, 183, 74, 0.28);
  background: linear-gradient(150deg, rgba(244, 183, 74, 0.08), rgba(47, 174, 143, 0.06) 55%, rgba(6, 24, 38, 0.5));
}

.page-contact .legal-box__copy p {
  margin-top: 0.9rem;
  font-size: 0.9rem;
  line-height: 1.95;
  color: var(--ink-soft);
  max-width: 44rem;
}

.page-contact .legal-box__links { display: grid; gap: 0.6rem; align-content: start; }

.page-contact .legal-link {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  min-height: 44px;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-strong);
  background: rgba(6, 24, 38, 0.55);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.88rem;
  color: var(--ink);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact .legal-link:hover { border-color: var(--c-coral); color: var(--c-coral); transform: translateY(-2px); }

.page-contact .legal-link .num { font-size: 0.72rem; color: var(--c-amber); letter-spacing: 0.1em; }

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .guide-grid { grid-template-columns: repeat(2, 1fr); }
  .page-contact .flow-strip { grid-template-columns: repeat(2, 1fr); }
  .page-contact .legal-box { grid-template-columns: 1.6fr 1fr; align-items: start; }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid { grid-template-columns: 1.12fr 0.88fr; }
  .page-contact .compose { margin-top: 2.5rem; }
  .page-contact .routes-grid { grid-template-columns: repeat(3, 1fr); align-items: start; }
  .page-contact .route-card--a { margin-top: 0; }
  .page-contact .route-card--b { margin-top: 2.25rem; }
  .page-contact .route-card--c { margin-top: 0.9rem; }
}

@media (min-width: 1024px) {
  .page-contact .guide-grid { grid-template-columns: repeat(4, 1fr); }
  .page-contact .flow-strip { grid-template-columns: repeat(4, 1fr); }
  .page-contact .flow-strip__step { padding-right: 1.35rem; }
  .page-contact .coord-list__row {
    grid-template-columns: 6rem 1fr auto;
    grid-template-areas: "key val act";
    gap: 0.75rem 1rem;
  }
}

@media (max-width: 420px) {
  .page-contact .compose__row { grid-template-columns: 1fr; gap: 0.15rem; }
  .page-contact .contact-hero__quick { gap: 0.85rem 1.35rem; }
}