.page-contact{
  --c-r: 28px;
  --c-r-soft: 18px;
  --c-hair-lt: rgba(242,236,227,.16);
  --c-hair-dk: rgba(31,28,26,.14);
  --c-ink-soft: rgba(31,28,26,.58);
  color: var(--paper);
}

.page-contact .band--ink{ color: var(--paper); }
.page-contact .band--paper{ color: var(--paper-ink); }

.page-contact .eyebrow{
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .14em;
  margin: 0 0 12px;
}
.page-contact .band--ink .eyebrow{ color: var(--silver); }
.page-contact .band--paper .eyebrow{ color: var(--c-ink-soft); }

.page-contact .section-title{ margin: 0 0 14px; }

/* ---------- 首屏：邮箱主体 ---------- */
.page-contact .c-hero{
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(24px, 5vw, 52px) clamp(40px, 7vw, 92px);
}
.page-contact .c-hero__bg{
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .22;
  filter: saturate(.9);
}
.page-contact .c-hero::after{
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 90% at 12% 8%, rgba(188,50,8,.34), transparent 58%),
    linear-gradient(128deg, rgba(15,13,12,.96) 34%, rgba(15,13,12,.62) 72%, rgba(15,13,12,.88));
}
.page-contact .c-hero__inner{ position: relative; }
.page-contact .c-hero__title{
  margin: 0 0 16px;
  font-size: clamp(1.9rem, 6vw, 3.4rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -.02em;
  max-width: 20ch;
}
.page-contact .c-hero__lead{
  max-width: 62ch;
  color: var(--silver);
  margin: 0 0 4px;
}

.page-contact .c-mail{
  margin-top: clamp(24px, 4vw, 44px);
  padding: clamp(20px, 3.4vw, 38px);
  border: 1px solid var(--c-hair-lt);
  border-radius: var(--c-r) var(--c-r) var(--c-r) 84px;
  background: linear-gradient(158deg, rgba(27,24,23,.94), rgba(15,13,12,.92));
  box-shadow: 0 28px 60px -44px rgba(255,74,23,.7);
}
.page-contact .c-mail__tag{
  display: inline-block;
  padding: 4px 12px;
  border: 1px solid rgba(46,242,184,.4);
  border-radius: var(--r-pill);
  color: var(--mint);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
}
.page-contact .c-mail__addr{
  margin: clamp(14px, 2.6vw, 24px) 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.32rem, 5.8vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.02em;
  overflow-wrap: anywhere;
  color: var(--paper);
  padding-bottom: clamp(12px, 1.8vw, 20px);
  border-bottom: 1px solid var(--c-hair-lt);
}
.page-contact .c-mail__note{
  margin: 16px 0 0;
  max-width: 58ch;
  color: var(--silver);
  font-size: 15.5px;
  line-height: 1.75;
}
.page-contact .c-mail__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 26px);
}
.page-contact .c-copy{ flex: 1 1 220px; }
.page-contact .c-copy__fallback{
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--silver);
  letter-spacing: .02em;
}

.page-contact .c-hero__facts{
  list-style: none;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--c-hair-lt);
  padding-top: clamp(18px, 2.6vw, 26px);
}
.page-contact .c-hero__fact{
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 15px;
  color: var(--silver);
  max-width: 66ch;
  line-height: 1.75;
}
.page-contact .c-hero__factNum{
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  color: var(--flame);
  letter-spacing: .02em;
}
.page-contact .c-hero__factText a{
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--c-hair-lt);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}
.page-contact .c-hero__factText a:hover{
  color: var(--flame);
  border-bottom-color: var(--flame);
}

/* ---------- 纠错清单 ---------- */
.page-contact .c-list{ padding-block: var(--pad-y); }
.page-contact .c-list__grid{
  display: grid;
  gap: clamp(26px, 4vw, 56px);
}
.page-contact .c-list__prose{
  max-width: 46ch;
  color: var(--c-ink-soft);
}
.page-contact .c-list__tip{
  margin: 18px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--moss);
  background: rgba(92,122,85,.1);
  border-radius: 0 var(--c-r-soft) var(--c-r-soft) 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper-ink);
  max-width: 48ch;
}

.page-contact .c-checks{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-contact .c-check{
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 18px;
  border: 1px solid var(--c-hair-dk);
  border-radius: var(--c-r-soft);
  background: rgba(255,255,255,.55);
  transition: border-color .2s var(--ease), background-color .2s var(--ease), transform .2s var(--ease);
}
.page-contact .c-check:hover{
  border-color: var(--flame-deep);
  background: #fff;
  transform: translateX(3px);
}
.page-contact .c-check__box{
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin: 3px 0 0;
  accent-color: var(--moss);
  cursor: pointer;
}
.page-contact .c-check__body{
  display: grid;
  gap: 4px;
  cursor: pointer;
}
.page-contact .c-check__name{
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .01em;
  transition: color .2s var(--ease);
}
.page-contact .c-check__desc{
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-ink-soft);
}
.page-contact .c-check__box:checked + .c-check__body .c-check__name{ color: var(--flame-deep); }
.page-contact .c-check__box:focus-visible{
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

/* ---------- 处理节奏 ---------- */
.page-contact .c-pace{ padding-block: var(--pad-y); }
.page-contact .c-pace__grid{
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}
.page-contact .c-pace__body .lead{ color: var(--silver); }
.page-contact .c-steps{
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}
.page-contact .c-step{
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 18px;
  padding-left: 18px;
  border-left: 2px solid var(--line);
  transition: border-color .2s var(--ease);
}
.page-contact .c-step:hover{ border-left-color: var(--flame); }
.page-contact .c-step__idx{
  grid-column: 1;
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 700;
  line-height: 1;
  color: var(--silver);
}
.page-contact .c-step__title{
  grid-column: 2;
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .01em;
}
.page-contact .c-step__text{
  grid-column: 2;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--silver);
  max-width: 56ch;
}

.page-contact .c-pace__media{
  border-radius: var(--c-r);
  overflow: hidden;
  border: 1px solid var(--c-hair-lt);
  margin: 0;
}
.page-contact .c-pace__media img{
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}
.page-contact .c-pace__media .media__cap{
  padding: 12px 16px 14px;
  font-size: 13px;
  color: var(--silver);
  letter-spacing: .02em;
}

/* ---------- 公示与备案 ---------- */
.page-contact .c-open{ padding-block: var(--pad-y); }
.page-contact .c-open__grid{
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}
.page-contact .c-open__card{
  padding: clamp(22px, 3.2vw, 38px);
  background: rgba(255,255,255,.62);
  border: 1px solid var(--c-hair-dk);
  border-radius: var(--c-r) var(--c-r) 84px var(--c-r);
}
.page-contact .c-facts{
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  display: grid;
  gap: 0;
}
.page-contact .c-facts__row{
  display: grid;
  gap: 4px;
  padding: 16px 0;
  border-top: 1px solid var(--c-hair-dk);
}
.page-contact .c-facts__key{
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--c-ink-soft);
}
.page-contact .c-facts__val{
  margin: 0;
  font-size: 17px;
  line-height: 1.7;
  color: var(--paper-ink);
}
.page-contact .c-facts__val.num{
  font-family: var(--font-mono);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.25rem, 3vw, 1.6rem);
  letter-spacing: .01em;
  overflow-wrap: anywhere;
}
.page-contact .c-open__note{
  margin: 20px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-ink-soft);
  max-width: 52ch;
}

.page-contact .c-filing{
  padding: clamp(22px, 3.2vw, 36px);
  background: linear-gradient(150deg, var(--slate), var(--ink));
  border-radius: 84px var(--c-r) var(--c-r) var(--c-r);
  border: 1px solid var(--c-hair-lt);
  color: var(--paper);
  transition: border-color .22s var(--ease);
}
.page-contact .c-filing:hover{ border-color: var(--flame-deep); }
.page-contact .c-filing__eyebrow{
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--silver);
}
.page-contact .c-filing__domain{
  margin: 14px 0 16px;
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 4.4vw, 2rem);
  font-weight: 700;
  letter-spacing: -.01em;
  overflow-wrap: anywhere;
}
.page-contact .c-filing__chip{ display: inline-block; }
.page-contact .c-filing__text{
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver);
  max-width: 40ch;
}
.page-contact .c-filing__track{
  position: relative;
  height: 1px;
  margin: clamp(20px, 3vw, 30px) 0 16px;
  background: var(--c-hair-lt);
}
.page-contact .c-filing__dot{
  position: absolute;
  right: 0;
  top: -3px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--flame);
}
.page-contact .c-filing__hint{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 收束 ---------- */
.page-contact .c-end{ padding-block: clamp(40px, 6vw, 80px); }
.page-contact .c-end__promise{
  margin: 0;
  font-size: clamp(1.3rem, 3.4vw, 2.15rem);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -.015em;
  max-width: 26ch;
}
.page-contact .c-end__text{
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--silver);
}
.page-contact .c-end__text a{
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--c-hair-lt);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.page-contact .c-end__text a:hover{
  color: var(--flame);
  border-bottom-color: var(--flame);
}
.page-contact .c-end__links{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 32px);
}
.page-contact .c-end__link{
  display: inline-block;
  padding: 9px 18px;
  border: 1px solid var(--c-hair-lt);
  border-radius: var(--r-pill);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--paper);
  text-decoration: none;
  transition: border-color .2s var(--ease), color .2s var(--ease), background-color .2s var(--ease);
}
.page-contact .c-end__link:hover{
  border-color: var(--flame);
  color: var(--flame);
  background: rgba(255,74,23,.08);
}
.page-contact .c-end__link:focus-visible,
.page-contact .c-copy:focus-visible,
.page-contact a:focus-visible{
  outline: 2px solid var(--mint);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px){
  .page-contact .c-hero__facts{
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 32px;
  }
}

@media (min-width: 900px){
  .page-contact .c-list__grid{
    grid-template-columns: minmax(0,.85fr) minmax(0,1.15fr);
    align-items: start;
  }
  .page-contact .c-checks{
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
  .page-contact .c-open__grid{
    grid-template-columns: minmax(0,1.08fr) minmax(0,.92fr);
    align-items: stretch;
  }
}

@media (min-width: 980px){
  .page-contact .c-pace__grid{
    grid-template-columns: minmax(0,1.2fr) minmax(0,.8fr);
    align-items: center;
  }
  .page-contact .c-mail{ max-width: 900px; }
}

@media (prefers-reduced-motion: reduce){
  .page-contact .c-check:hover{ transform: none; }
}