.page-contact{
  --pc-gap:18px;
  position:relative;
  padding-top:calc(var(--header-h) + 24px);
  padding-bottom:0;
  color:var(--fog);
  overflow-x:hidden;
}
.page-contact::before{
  content:"";
  position:absolute;
  top:0;
  left:50%;
  width:min(1400px,150%);
  height:560px;
  transform:translateX(-50%);
  background:
    radial-gradient(50% 62% at 18% 0%,rgba(53,242,208,.16),transparent 70%),
    radial-gradient(45% 58% at 88% 8%,rgba(233,79,161,.13),transparent 72%);
  pointer-events:none;
  z-index:0;
}
.page-contact .shell{
  position:relative;
  z-index:1;
}
.page-contact .breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--steel);
  margin-bottom:20px;
}
.page-contact .crumb{
  color:var(--steel);
  text-decoration:none;
  transition:color var(--dur-fast) var(--ease);
}
.page-contact .crumb:hover,
.page-contact .crumb:focus-visible{
  color:var(--signal);
}
.page-contact .crumb[aria-current="page"]{
  color:var(--mist);
}
.page-contact .crumb-sep{
  color:var(--steel);
  opacity:.7;
}
.page-contact .contact-head{
  max-width:920px;
  margin-bottom:clamp(30px,5vw,54px);
}
.page-contact .eyebrow{
  margin:0;
  font-family:var(--font-serif);
  font-size:12px;
  font-weight:600;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--signal);
}
.page-contact .page-title{
  margin:12px 0 16px;
  font-size:clamp(29px,6.4vw,56px);
  line-height:1.14;
  letter-spacing:-.02em;
  color:var(--fog);
}
.page-contact .lede{
  margin:0;
  max-width:46em;
  font-size:clamp(15px,2.4vw,17px);
  line-height:1.82;
  color:rgba(234,244,247,.78);
}
.page-contact .section-head{
  margin-bottom:20px;
}
.page-contact .section-title{
  margin:8px 0 10px;
  font-size:clamp(23px,4.2vw,34px);
  line-height:1.22;
  letter-spacing:-.01em;
  color:var(--fog);
}
.page-contact .section-sub{
  margin:0;
  max-width:48em;
  font-size:14.5px;
  line-height:1.78;
  color:rgba(234,244,247,.7);
}

/* 渠道卡片 */
.page-contact .channels{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
}
.page-contact .channel{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:24px 22px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:linear-gradient(158deg,rgba(15,59,76,.92),rgba(10,37,64,.88));
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.page-contact .channel:hover{
  border-color:var(--line-strong);
}
.page-contact .channel-kicker{
  margin:0;
  font-family:var(--font-serif);
  font-size:11.5px;
  letter-spacing:.22em;
  color:var(--steel);
  text-transform:uppercase;
}
.page-contact .channel-title{
  margin:0;
  font-size:clamp(17px,2.8vw,20px);
  font-weight:700;
  color:var(--fog);
}
.page-contact .channel-text{
  margin:0;
  font-size:14.5px;
  line-height:1.78;
  color:rgba(234,244,247,.72);
}
.page-contact .channel--mail{
  border-color:var(--line-strong);
  background:
    linear-gradient(150deg,rgba(53,242,208,.17),rgba(10,37,64,.94) 58%),
    var(--midnight);
  box-shadow:0 30px 72px -42px rgba(53,242,208,.62);
}
.page-contact .channel--mail .channel-title{
  font-size:clamp(19px,3.2vw,25px);
}
.page-contact .mail-address{
  margin:0;
  font-family:var(--font-condensed);
  font-size:clamp(21px,5.3vw,34px);
  font-weight:600;
  line-height:1.18;
  letter-spacing:.02em;
  color:var(--mist);
  word-break:break-all;
}
.page-contact .phone-number{
  margin:0;
  font-family:var(--font-condensed);
  font-size:clamp(26px,6.2vw,34px);
  font-weight:600;
  letter-spacing:.06em;
  color:var(--amber);
}
.page-contact .addr-line{
  margin:0;
  font-size:15px;
  font-weight:500;
  line-height:1.72;
  color:var(--fog);
}
.page-contact .copy-btn{
  align-self:flex-start;
  margin-top:2px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 17px;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-pill);
  background:rgba(53,242,208,.1);
  color:var(--mist);
  font-family:inherit;
  font-size:13px;
  font-weight:600;
  cursor:pointer;
  transition:background var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease);
}
.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible{
  background:rgba(53,242,208,.24);
  border-color:var(--signal);
}
.page-contact .copy-btn.is-copied{
  background:var(--signal);
  border-color:var(--signal);
  color:#04121F;
}

/* 反馈类型 */
.page-contact .issues-section{
  margin-top:clamp(48px,8vw,84px);
}
.page-contact .filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin:0 0 20px;
}
.page-contact .filter-btn{
  appearance:none;
  padding:8px 16px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  background:rgba(15,59,76,.5);
  color:rgba(234,244,247,.78);
  font-family:inherit;
  font-size:13px;
  font-weight:600;
  cursor:pointer;
  transition:background var(--dur-fast) var(--ease),color var(--dur-fast) var(--ease),border-color var(--dur-fast) var(--ease);
}
.page-contact .filter-btn:hover,
.page-contact .filter-btn:focus-visible{
  border-color:var(--line-strong);
  color:var(--mist);
}
.page-contact .filter-btn.is-active,
.page-contact .filter-btn[aria-pressed="true"]{
  background:var(--signal);
  border-color:var(--signal);
  color:#04121F;
}
.page-contact .issue-list{
  display:grid;
  grid-template-columns:1fr;
  gap:14px;
  margin:0;
  padding:0;
  list-style:none;
}
.page-contact .issue-item{
  padding:20px 22px;
  border:1px solid var(--line);
  border-left:3px solid var(--signal);
  border-radius:var(--radius-md);
  background:rgba(15,59,76,.42);
}
.page-contact .issue-item[data-category="correction"]{
  border-left-color:var(--amber);
}
.page-contact .issue-item[data-category="cooperation"]{
  border-left-color:var(--magenta);
}
.page-contact .issue-item[data-category="privacy"]{
  border-left-color:var(--lime);
}
.page-contact .issue-item h3{
  margin:0 0 8px;
  font-size:16.5px;
  font-weight:700;
  color:var(--fog);
}
.page-contact .issue-item p{
  margin:0;
  font-size:14.5px;
  line-height:1.78;
  color:rgba(234,244,247,.72);
}
.page-contact .issue-item[hidden]{
  display:none;
}
.page-contact .issue-empty{
  margin:16px 0 0;
  font-size:14px;
  color:var(--steel);
}
.page-contact .issue-empty[hidden]{
  display:none;
}

/* 回复说明 */
.page-contact .response-section{
  margin-top:clamp(48px,8vw,84px);
}
.page-contact .response-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:26px;
}
.page-contact .media-frame{
  position:relative;
  margin:0;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--harbor);
}
.page-contact .media-frame img{
  display:block;
  width:100%;
  max-width:100%;
  height:auto;
  object-fit:cover;
}
.page-contact .media-caption{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  margin:0;
  padding:12px 16px;
  font-size:12.5px;
  line-height:1.6;
  color:var(--mist);
  background:linear-gradient(transparent,rgba(4,18,31,.92));
}
.page-contact .response-lede{
  margin:0 0 4px;
  font-size:14.5px;
  line-height:1.8;
  color:rgba(234,244,247,.72);
}
.page-contact .flow{
  display:grid;
  gap:16px;
  margin:22px 0 0;
  padding:0;
  list-style:none;
  counter-reset:pc-flow;
}
.page-contact .flow-step{
  position:relative;
  padding-left:44px;
  counter-increment:pc-flow;
}
.page-contact .flow-step::before{
  content:counter(pc-flow,decimal-leading-zero);
  position:absolute;
  top:0;
  left:0;
  display:grid;
  place-items:center;
  width:30px;
  height:30px;
  border-radius:50%;
  background:var(--grad-signal);
  color:#04121F;
  font-family:var(--font-condensed);
  font-size:13px;
  font-weight:600;
}
.page-contact .flow-step:not(:last-child)::after{
  content:"";
  position:absolute;
  top:32px;
  left:14px;
  width:2px;
  height:calc(100% - 24px);
  background:linear-gradient(rgba(53,242,208,.5),transparent);
}
.page-contact .flow-title{
  margin:0 0 5px;
  font-size:15.5px;
  font-weight:700;
  color:var(--fog);
}
.page-contact .flow-text{
  margin:0;
  font-size:14.5px;
  line-height:1.76;
  color:rgba(234,244,247,.72);
}

/* 合作与内容源 */
.page-contact .sources-section{
  margin-top:clamp(48px,8vw,84px);
}
.page-contact .sources-panel{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
  padding:clamp(24px,4.4vw,42px);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  background:linear-gradient(132deg,rgba(233,79,161,.16),rgba(10,37,64,.92) 52%,rgba(15,59,76,.88));
}
.page-contact .sources-copy .section-title{
  margin-top:8px;
}
.page-contact .source-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:0;
  padding:0;
  list-style:none;
}
.page-contact .source-tags li{
  padding:7px 15px;
  border:1px solid rgba(233,79,161,.45);
  border-radius:var(--radius-pill);
  background:rgba(233,79,161,.12);
  color:var(--mist);
  font-size:13px;
  font-weight:600;
  line-height:1.5;
}

/* 地址与说明入口 */
.page-contact .reach-section{
  margin-top:clamp(48px,8vw,84px);
}
.page-contact .reach-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:18px;
}
.page-contact .reach-card{
  padding:26px 24px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(15,59,76,.92),rgba(10,37,64,.9));
}
.page-contact .reach-addr{
  margin:12px 0 16px;
  font-size:clamp(17px,2.9vw,21px);
  font-weight:600;
  line-height:1.6;
  color:var(--mist);
}
.page-contact .reach-note{
  margin:14px 0 0;
  font-size:13.5px;
  line-height:1.76;
  color:rgba(234,244,247,.66);
}
.page-contact .reach-links{
  display:grid;
  grid-template-columns:1fr;
  gap:12px;
}
.page-contact .link-card{
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:18px 20px;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  background:rgba(15,59,76,.36);
  color:var(--fog);
  text-decoration:none;
  transition:border-color var(--dur-fast) var(--ease),background var(--dur-fast) var(--ease),transform var(--dur-fast) var(--ease);
}
.page-contact .link-card:hover,
.page-contact .link-card:focus-visible{
  border-color:var(--signal);
  background:rgba(53,242,208,.1);
  transform:translateY(-2px);
}
.page-contact .link-card strong{
  font-size:15px;
  font-weight:700;
  color:var(--fog);
}
.page-contact .link-card span{
  font-size:13px;
  line-height:1.62;
  color:rgba(234,244,247,.66);
}

/* 底部提示带 */
.page-contact .closing{
  position:relative;
  isolation:isolate;
  margin-top:clamp(52px,9vw,96px);
  overflow:hidden;
  border-radius:var(--radius-lg) var(--radius-lg) 0 0;
}
.page-contact .closing img{
  position:absolute;
  inset:0;
  z-index:-2;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.55;
}
.page-contact .closing::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:linear-gradient(160deg,rgba(4,18,31,.88),rgba(10,37,64,.94));
}
.page-contact .closing-inner{
  display:grid;
  grid-template-columns:1fr;
  gap:18px;
  padding:clamp(28px,5vw,52px) clamp(22px,4.4vw,44px);
}
.page-contact .closing-text{
  margin:0;
  max-width:44em;
  font-size:clamp(15px,2.4vw,17.5px);
  line-height:1.85;
  color:var(--fog);
}
.page-contact .closing .btn{
  justify-self:start;
}

/* 平板 */
@media (min-width:720px){
  .page-contact .channels{
    grid-template-columns:repeat(2,1fr);
  }
  .page-contact .channel--mail{
    grid-column:1 / -1;
  }
  .page-contact .issue-list{
    grid-template-columns:repeat(2,1fr);
  }
  .page-contact .reach-links{
    grid-template-columns:repeat(2,1fr);
  }
}

@media (min-width:860px){
  .page-contact .sources-panel{
    grid-template-columns:1.15fr .85fr;
    align-items:center;
    gap:40px;
  }
  .page-contact .response-grid{
    grid-template-columns:0.92fr 1.08fr;
    align-items:center;
    gap:40px;
  }
}

/* 桌面：三列错位 */
@media (min-width:1024px){
  .page-contact .channels{
    grid-template-columns:1.42fr 1fr 1fr;
    align-items:start;
    gap:18px;
  }
  .page-contact .channel--mail{
    grid-column:auto;
    transform:translateY(-14px);
  }
  .page-contact .channel--phone{
    transform:translateY(20px);
  }
  .page-contact .channel--addr{
    transform:translateY(-2px);
  }
  .page-contact .reach-grid{
    grid-template-columns:1.05fr .95fr;
    gap:26px;
  }
  .page-contact .closing-inner{
    grid-template-columns:1fr auto;
    align-items:center;
    gap:34px;
  }
  .page-contact .closing-text{
    max-width:52em;
  }
}

@media (prefers-reduced-motion:reduce){
  .page-contact .channel,
  .page-contact .copy-btn,
  .page-contact .filter-btn,
  .page-contact .link-card,
  .page-contact .channel--mail,
  .page-contact .channel--phone,
  .page-contact .channel--addr{
    transition:none;
    transform:none;
  }
}
<<<END>>>