/* ===== 联系我们 /contact-us/ ===== */
.page-contact {
  --c-gap: clamp(18px, 3.2vw, 34px);
  --c-panel: linear-gradient(150deg, rgba(14, 59, 54, 0.82), rgba(8, 13, 12, 0.94));
  position: relative;
  overflow-x: clip;
}

/* --- 面包屑留白 --- */
.page-contact .crumbs {
  padding-top: clamp(14px, 2.4vw, 24px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(22px, 4vw, 46px) 0 clamp(30px, 5vw, 58px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -14%;
  width: min(620px, 84vw);
  height: 420px;
  background:
    radial-gradient(circle at 68% 32%, rgba(255, 106, 31, 0.2), transparent 62%),
    radial-gradient(circle at 32% 70%, rgba(23, 224, 210, 0.16), transparent 62%);
  filter: blur(4px);
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(23, 224, 210, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 224, 210, 0.06) 1px, transparent 1px);
  background-size: 58px 58px;
  -webkit-mask-image: radial-gradient(120% 82% at 18% 0%, #000 0%, transparent 74%);
  mask-image: radial-gradient(120% 82% at 18% 0%, #000 0%, transparent 74%);
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--c-gap);
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-size: clamp(2rem, 7.2vw, 3.6rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .contact-hero__lead {
  margin: 18px 0 0;
  max-width: 560px;
  color: var(--muted);
  font-size: clamp(1rem, 2.3vw, 1.08rem);
  line-height: 1.8;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .contact-hero__board {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3.4vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--c-panel);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.34);
}

.page-contact .contact-hero__board::after {
  content: "";
  position: absolute;
  top: -66px;
  right: -46px;
  width: 210px;
  height: 210px;
  background: radial-gradient(circle, rgba(23, 224, 210, 0.22), transparent 68%);
  pointer-events: none;
}

.page-contact .contact-hero__promise {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 6.6vw, 3rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .contact-hero__promise span {
  margin-right: 6px;
  color: var(--orange);
}

.page-contact .contact-hero__promise-note {
  margin: 12px 0 0;
  max-width: 34ch;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.7;
}

.page-contact .contact-hero__hints {
  list-style: none;
  margin: 22px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line-soft);
  display: grid;
  gap: 12px;
}

.page-contact .contact-hero__hints li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.7;
}

.page-contact .contact-hero__hints li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--cyan);
  transform: rotate(45deg);
}

/* ---------- 三条联系路径 ---------- */
.page-contact .contact-channels__grid {
  position: relative;
  display: grid;
  gap: 0;
  margin-top: clamp(20px, 3.2vw, 32px);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .contact-channels__texture {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-contact .contact-channels__texture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.24;
}

.page-contact .contact-channels__texture::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 13, 12, 0.48), rgba(8, 13, 12, 0.9));
}

.page-contact .channel {
  position: relative;
  z-index: 1;
  padding: clamp(22px, 3.4vw, 32px) clamp(18px, 2.4vw, 26px);
  border-top: 2px solid var(--cyan);
  background: rgba(8, 13, 12, 0.46);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.page-contact .channel--mail {
  border-top-color: var(--orange);
}

.page-contact .channel--phone {
  border-top-color: var(--cyan);
}

.page-contact .channel--visit {
  border-top-color: var(--amber);
}

.page-contact .channel__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .channel__name {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3.4vw, 1.5rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .channel__value {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(0.98rem, 2.8vw, 1.14rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

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

.page-contact .channel--visit .channel__value {
  font-size: clamp(0.92rem, 2.4vw, 1.02rem);
  color: var(--paper);
}

.page-contact .channel__desc {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.74;
}

.page-contact .channel__meta {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 咨询范围 ---------- */
.page-contact .contact-scope__inner {
  position: relative;
  display: grid;
  gap: clamp(18px, 3vw, 30px);
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(14, 59, 54, 0.55), rgba(11, 31, 26, 0.92));
}

.page-contact .contact-scope__head h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.4vw, 2.1rem);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-contact .contact-scope__body p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.84;
}

.page-contact .contact-scope__body p:last-child {
  margin-bottom: 0;
}

.page-contact .contact-scope__fields {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: clamp(16px, 2.6vw, 24px) 0 0;
  border-top: 1px solid var(--line-soft);
  list-style: none;
}

/* ---------- 纠错与合作 双栏 ---------- */
.page-contact .contact-paths__grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}

.page-contact .contact-fix,
.page-contact .contact-coop {
  padding-top: clamp(18px, 2.6vw, 26px);
  border-top: 2px solid rgba(255, 106, 31, 0.55);
}

.page-contact .contact-coop {
  border-top-color: rgba(23, 224, 210, 0.5);
}

.page-contact .contact-fix h2,
.page-contact .contact-coop h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 4.2vw, 2rem);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-contact .fix-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-contact .fix-list > li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .fix-list > li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .fix-list__mark {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  border: 1px solid var(--cyan);
  border-radius: 6px;
  background: rgba(23, 224, 210, 0.14);
}

.page-contact .fix-list__mark::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 3px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(42deg);
}

.page-contact .fix-list__text strong {
  display: block;
  color: var(--paper);
  font-size: 1rem;
  letter-spacing: 0.01em;
}

.page-contact .fix-list__text p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.74;
}

.page-contact .contact-coop > p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.84;
}

.page-contact .contact-coop .media {
  margin: 24px 0 0;
}

.page-contact .contact-coop .media__frame {
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(8, 13, 12, 0.6);
}

.page-contact .contact-coop .media__frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .contact-coop .media__caption {
  color: var(--muted);
}

/* ---------- 回复节奏 ---------- */
.page-contact .contact-timing__band {
  display: grid;
  gap: clamp(22px, 3.4vw, 34px);
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(100deg, rgba(8, 13, 12, 0.92), rgba(11, 31, 26, 0.72));
}

.page-contact .contact-timing__head h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 4.2vw, 1.9rem);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-contact .contact-timing__head p {
  margin: 14px 0 0;
  max-width: 40ch;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.78;
}

.page-contact .timing-scale {
  display: grid;
  gap: 14px;
}

.page-contact .timing-scale__item {
  position: relative;
  padding: 14px 14px 14px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(11, 31, 26, 0.6);
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-contact .timing-scale__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 3px;
  border-radius: 3px;
  background: var(--cyan);
  opacity: 0.85;
}

.page-contact .timing-scale__item:last-child::before {
  background: var(--orange);
}

.page-contact .timing-scale__item:hover {
  background: rgba(14, 59, 54, 0.72);
  border-color: var(--line);
  transform: translateY(-3px);
}

.page-contact .timing-scale__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  letter-spacing: 0.1em;
  color: var(--paper);
}

.page-contact .timing-scale__tip {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.66;
  transition: color 0.25s var(--ease);
}

.page-contact .timing-scale__item:hover .timing-scale__tip {
  color: var(--paper);
}

/* ---------- 延伸阅读 ---------- */
.page-contact .contact-more {
  padding-bottom: clamp(44px, 6vw, 76px);
}

.page-contact .contact-more__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .contact-more__list a {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(11, 31, 26, 0.55);
  color: var(--paper);
  font-size: 0.98rem;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-contact .contact-more__list a:hover {
  border-color: var(--cyan);
  background: rgba(14, 59, 54, 0.72);
}

.page-contact .contact-more__list span {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 400;
  line-height: 1.6;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .timing-scale {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

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

@media (min-width: 880px) {
  .page-contact .contact-scope__inner {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

  .page-contact .contact-scope__fields {
    grid-column: 1 / -1;
  }

  .page-contact .contact-timing__band {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    align-items: center;
  }

  .page-contact .timing-scale {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 920px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
  }

  .page-contact .contact-paths__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(30px, 4vw, 58px);
  }
}

@media (min-width: 860px) {
  .page-contact .contact-channels__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-more__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .timing-scale__item,
  .page-contact .timing-scale__tip,
  .page-contact .contact-more__list a {
    transition: none;
  }

  .page-contact .timing-scale__item:hover {
    transform: none;
  }
}