/* ===== page-contact : 意见反馈 ===== */

.page-contact{
  --ct-accent: var(--rb-blue);
  --ct-panel-deep: #0F141C;
  --ct-gap-lg: 56px;
  color: var(--rb-body-text);
}

/* ---------- 面包屑 ---------- */
.page-contact .rb-crumbs{ margin-top: 20px; }
.page-contact .rb-crumbs ol{
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  font-size: 13px;
  letter-spacing: .04em;
}
.page-contact .rb-crumbs li{ display: flex; align-items: center; }
.page-contact .rb-crumbs li + li::before{
  content: "/";
  margin: 0 8px;
  color: var(--rb-line);
}
.page-contact .rb-crumbs a{ color: var(--rb-mist); text-decoration: none; }
.page-contact .rb-crumbs a:hover{ color: var(--rb-cream); }
.page-contact .rb-crumbs [aria-current="page"]{ color: var(--rb-cream); }

/* ---------- 通用小标签 ---------- */
.page-contact .rb-kicker{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--rb-blue-hi);
}
.page-contact .rb-kicker::before{
  content: "";
  width: 22px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--rb-red), var(--rb-blue));
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero{
  position: relative;
  padding: 36px 0 24px;
  overflow: hidden;
}
.page-contact .ct-hero::before{
  content: "";
  position: absolute;
  inset: -30% -12% auto -12%;
  height: 460px;
  pointer-events: none;
  background:
    radial-gradient(430px 280px at 16% 18%, rgba(225,6,0,.24), transparent 70%),
    radial-gradient(430px 280px at 84% 6%, rgba(0,87,255,.26), transparent 70%);
}
.page-contact .ct-hero__inner{ position: relative; }
.page-contact .ct-hero__title{
  margin: 14px 0 0;
  font-size: clamp(27px, 6.2vw, 50px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--rb-cream);
  max-width: 19em;
}
.page-contact .ct-hero__lead{
  margin: 20px 0 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.85;
}
.page-contact .ct-hero__tags{
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
}
.page-contact .ct-chip{
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--rb-line);
  background: rgba(21,26,35,.75);
  color: var(--rb-mist);
  font-size: 12.5px;
  letter-spacing: .05em;
}
.page-contact .ct-chip--live{
  border-color: rgba(0,229,199,.4);
  color: var(--rb-cyan);
  background: rgba(0,229,199,.09);
}

/* ---------- 通栏图 ---------- */
.page-contact .ct-banner{ margin-top: 12px; margin-bottom: 0; }
.page-contact .ct-banner img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border-radius: var(--rb-radius);
  border: 1px solid var(--rb-line);
  background: var(--rb-panel);
}
.page-contact .ct-banner figcaption{
  margin-top: 12px;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--rb-mist);
}

/* ---------- 分屏主体 ---------- */
.page-contact .ct-stage{
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: start;
  padding-top: 52px;
  padding-bottom: 8px;
}
.page-contact .ct-main{ min-width: 0; }
.page-contact .ct-side{
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
  align-self: start;
}

@media (min-width: 980px){
  .page-contact .ct-stage{
    grid-template-columns: minmax(0, 1.58fr) minmax(300px, .95fr);
    gap: 48px;
  }
  .page-contact .ct-side{ position: sticky; top: 96px; }
}

/* ---------- 区块标题 ---------- */
.page-contact .ct-block + .ct-block{ margin-top: var(--ct-gap-lg); }
.page-contact .ct-block__index{
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--rb-blue-hi);
}
.page-contact .ct-block__title{
  margin: 0;
  font-size: clamp(21px, 3.6vw, 32px);
  font-weight: 900;
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--rb-cream);
}
.page-contact .ct-block__lead{
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.85;
}

/* ---------- 来意分流 ---------- */
.page-contact .ct-intent{ position: relative; margin-top: 24px; }
.page-contact .ct-intent__radio{
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}
.page-contact .ct-intent__pills{
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.page-contact .ct-pill{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-radius: var(--rb-radius-sm);
  border: 1px solid var(--rb-stone);
  background: var(--rb-panel);
  color: var(--rb-body-text);
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  transition: border-color .2s ease, background-color .2s ease, color .2s ease, transform .2s ease;
}
.page-contact .ct-pill::before{
  content: "";
  flex: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--rb-mist);
}
.page-contact .ct-pill--red::before{ background: var(--rb-red); }
.page-contact .ct-pill--blue::before{ background: var(--rb-blue); }
.page-contact .ct-pill--amber::before{ background: var(--rb-amber); }
.page-contact .ct-pill--cyan::before{ background: var(--rb-cyan); }

.page-contact .ct-pill:hover{ border-color: var(--rb-line); transform: translateY(-1px); }

.page-contact #ct-r1:checked ~ .ct-intent__pills .ct-pill--red{
  border-color: var(--rb-red);
  background: rgba(225,6,0,.14);
  color: var(--rb-cream);
}
.page-contact #ct-r2:checked ~ .ct-intent__pills .ct-pill--blue{
  border-color: var(--rb-blue);
  background: rgba(0,87,255,.18);
  color: var(--rb-cream);
}
.page-contact #ct-r3:checked ~ .ct-intent__pills .ct-pill--amber{
  border-color: var(--rb-amber);
  background: rgba(255,179,0,.14);
  color: var(--rb-cream);
}
.page-contact #ct-r4:checked ~ .ct-intent__pills .ct-pill--cyan{
  border-color: var(--rb-cyan);
  background: rgba(0,229,199,.13);
  color: var(--rb-cream);
}

.page-contact .ct-intent:has(#ct-r1:focus-visible) .ct-pill--red,
.page-contact .ct-intent:has(#ct-r2:focus-visible) .ct-pill--blue,
.page-contact .ct-intent:has(#ct-r3:focus-visible) .ct-pill--amber,
.page-contact .ct-intent:has(#ct-r4:focus-visible) .ct-pill--cyan{
  outline: 2px solid var(--rb-blue-hi);
  outline-offset: 2px;
}

.page-contact .ct-intent__panels{ margin-top: 20px; }
.page-contact .ct-intent__panel{
  display: none;
  padding: 22px;
  border-radius: var(--rb-radius);
  border: 1px solid var(--rb-line);
  background: linear-gradient(160deg, rgba(21,26,35,.96), rgba(11,14,20,.96));
  animation: ct-panel-in .24s ease both;
}
@keyframes ct-panel-in{
  from{ opacity: 0; transform: translateY(6px); }
  to{ opacity: 1; transform: none; }
}
.page-contact #ct-r1:checked ~ .ct-intent__panels .ct-intent__panel--data,
.page-contact #ct-r2:checked ~ .ct-intent__panels .ct-intent__panel--partner,
.page-contact #ct-r3:checked ~ .ct-intent__panels .ct-intent__panel--venue,
.page-contact #ct-r4:checked ~ .ct-intent__panels .ct-intent__panel--youth{
  display: block;
}
.page-contact .ct-intent__panel h3{
  margin: 0 0 10px;
  font-size: 16.5px;
  font-weight: 900;
  line-height: 1.4;
  color: var(--rb-cream);
}
.page-contact .ct-intent__panel p{
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.8;
}
.page-contact .ct-checks{
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 0;
  padding: 0;
}
.page-contact .ct-checks li{
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
}
.page-contact .ct-checks li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: currentColor;
  opacity: .7;
  transform: rotate(45deg);
}

/* ---------- 反馈表单 ---------- */
.page-contact .ct-form{
  margin-top: 24px;
  padding: 22px;
  border-radius: var(--rb-radius);
  border: 1px solid var(--rb-line);
  background: var(--rb-panel);
}
.page-contact .ct-form__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.page-contact .ct-field{ display: flex; flex-direction: column; gap: 8px; }
.page-contact .ct-field--wide{ margin-top: 16px; }
.page-contact .ct-field__label{
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--rb-mist);
}
.page-contact .ct-field__hint{
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--rb-mist);
}
.page-contact .ct-field input,
.page-contact .ct-field select,
.page-contact .ct-field textarea{
  width: 100%;
  font: inherit;
  font-size: 15px;
  color: var(--rb-cream);
  background: var(--ct-panel-deep);
  border: 1px solid var(--rb-stone);
  border-radius: var(--rb-radius-sm);
  padding: 12px 14px;
  transition: border-color .18s ease, box-shadow .18s ease;
  appearance: none;
  -webkit-appearance: none;
}
.page-contact .ct-field textarea{
  resize: vertical;
  min-height: 138px;
  line-height: 1.75;
}
.page-contact .ct-field input::placeholder,
.page-contact .ct-field textarea::placeholder{ color: #6C7688; }
.page-contact .ct-field input:focus,
.page-contact .ct-field select:focus,
.page-contact .ct-field textarea:focus{
  outline: none;
  border-color: var(--rb-blue);
  box-shadow: 0 0 0 3px rgba(0,87,255,.22);
}
.page-contact .ct-field select{
  padding-right: 40px;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--rb-mist) 50%),
    linear-gradient(135deg, var(--rb-mist) 50%, transparent 50%);
  background-position: calc(100% - 20px) calc(50% + 2px), calc(100% - 14px) calc(50% + 2px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}
.page-contact .ct-field select option{
  background: var(--ct-panel-deep);
  color: var(--rb-cream);
}
.page-contact .ct-form__note{
  margin: 20px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--rb-blue);
  border-radius: 0 var(--rb-radius-sm) var(--rb-radius-sm) 0;
  background: rgba(0,87,255,.09);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--rb-body-text);
}

/* ---------- 右侧信息卡 ---------- */
.page-contact .ct-card{
  border-radius: var(--rb-radius);
  border: 1px solid var(--rb-line);
  background: var(--rb-panel);
  overflow: hidden;
}
.page-contact .ct-card__media{
  position: relative;
  margin: 0;
}
.page-contact .ct-card__media img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-contact .ct-card__media::after{
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,14,20,0) 42%, rgba(21,26,35,.96) 100%);
  pointer-events: none;
}
.page-contact .ct-card__title{
  margin: 20px 24px 12px;
  font-size: 17px;
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--rb-cream);
}
.page-contact .ct-card--scale .ct-card__title{ margin-bottom: 18px; }

.page-contact .ct-channels{
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 0 24px;
}
.page-contact .ct-channels__row{
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rb-stone);
}
.page-contact .ct-channels__row:last-child{
  padding-bottom: 0;
  border-bottom: 0;
}
.page-contact .ct-channels dt{
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--rb-mist);
}
.page-contact .ct-channels dd{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--rb-cream);
  overflow-wrap: anywhere;
}
.page-contact .ct-channels__mail{
  font-family: var(--rb-font-mono);
  font-size: 13.5px;
  letter-spacing: -.01em;
}
.page-contact .ct-card__note{
  margin: 18px 0 0;
  padding: 16px 24px 22px;
  border-top: 1px solid var(--rb-stone);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--rb-mist);
}

/* ---------- 回复时间刻度 ---------- */
.page-contact .ct-scale{
  list-style: none;
  position: relative;
  margin: 0 24px 24px;
  padding: 0;
}
.page-contact .ct-scale__row{
  position: relative;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 20px;
}
.page-contact .ct-scale__row:last-child{ padding-bottom: 0; }
.page-contact .ct-scale__row::before{
  content: "";
  position: absolute;
  left: 25px;
  top: 44px;
  bottom: 0;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, rgba(255,179,0,.55), rgba(0,229,199,.55));
}
.page-contact .ct-scale__row:last-child::before{ display: none; }
.page-contact .ct-scale__node{
  display: grid;
  place-items: center;
  width: 52px;
  height: 40px;
  border-radius: var(--rb-radius-sm);
  font-family: var(--rb-font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--rb-amber);
  background: rgba(255,179,0,.14);
  border: 1px solid rgba(255,179,0,.34);
}
.page-contact .ct-scale__row:nth-child(2) .ct-scale__node{
  color: #7CF3E2;
  background: rgba(0,229,199,.14);
  border-color: rgba(0,229,199,.34);
}
.page-contact .ct-scale__row:nth-child(3) .ct-scale__node{
  color: #A6F7EC;
  background: rgba(0,229,199,.2);
  border-color: rgba(0,229,199,.52);
}
.page-contact .ct-scale__t{
  margin: 6px 0 4px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--rb-cream);
}
.page-contact .ct-scale__d{
  margin: 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--rb-mist);
  transition: color .2s ease;
}
.page-contact .ct-scale__row:hover .ct-scale__d{ color: var(--rb-body-text); }

/* ---------- 合作方向 ---------- */
.page-contact .ct-partner__head{ max-width: 70ch; }
.page-contact .ct-partner__head h2{
  margin: 14px 0 0;
  font-size: clamp(21px, 3.4vw, 32px);
  font-weight: 900;
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--rb-cream);
}
.page-contact .ct-partner__head p{
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.85;
}
.page-contact .ct-partner__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 32px;
}
.page-contact .ct-partner__item{
  position: relative;
  overflow: hidden;
  padding: 24px 22px 20px;
  border-radius: var(--rb-radius);
  border: 1px solid var(--rb-line);
  background: var(--rb-panel);
}
.page-contact .ct-partner__item::before{
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--ct-accent, var(--rb-blue));
}
.page-contact .ct-partner__item--cyan{ --ct-accent: var(--rb-cyan); }
.page-contact .ct-partner__item--amber{ --ct-accent: var(--rb-amber); }
.page-contact .ct-partner__item--blue{ --ct-accent: var(--rb-blue); }
.page-contact .ct-partner__item--red{ --ct-accent: var(--rb-red); }
.page-contact .ct-partner__item h3{
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 900;
  color: var(--rb-cream);
}
.page-contact .ct-partner__item p{
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
}
.page-contact .ct-partner__link{ margin-top: 14px !important; }
.page-contact .ct-partner__link a{
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ct-accent, var(--rb-blue-hi));
  text-decoration: none;
  border-bottom: 1px solid rgba(91,140,255,.35);
  padding-bottom: 2px;
}
.page-contact .ct-partner__link a:hover{ color: var(--rb-cream); border-bottom-color: var(--rb-cream); }

@media (min-width: 760px){
  .page-contact .ct-partner__grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- 收尾提示 ---------- */
.page-contact .ct-outro p{
  margin: 0;
  max-width: 76ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--rb-mist);
}
.page-contact .ct-outro a{
  color: var(--rb-blue-hi);
  text-decoration: none;
  border-bottom: 1px solid rgba(91,140,255,.4);
}
.page-contact .ct-outro a:hover{ color: var(--rb-cream); border-bottom-color: var(--rb-cream); }

/* ---------- 断点细化 ---------- */
@media (min-width: 640px){
  .page-contact .ct-intent__pills{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-contact .ct-form{ padding: 28px; }
  .page-contact .ct-intent__panel{ padding: 24px 26px; }
}

@media (min-width: 720px){
  .page-contact .ct-form__grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1100px){
  .page-contact .ct-partner__grid{ grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-contact .ct-partner__item:nth-child(even){ transform: translateY(28px); }
  .page-contact .ct-partner{ padding-bottom: 120px; }
}

@media (max-width: 979px){
  .page-contact .ct-side{ position: static; }
}

@media (max-width: 479px){
  .page-contact .ct-hero__title{ font-size: 26px; }
  .page-contact .ct-card__title{ margin-left: 20px; margin-right: 20px; }
  .page-contact .ct-channels{ margin-left: 20px; margin-right: 20px; }
  .page-contact .ct-scale{ margin-left: 20px; margin-right: 20px; }
  .page-contact .ct-card__note{ padding-left: 20px; padding-right: 20px; }
  .page-contact .ct-scale__row{ gap: 12px; }
}

@media (prefers-reduced-motion: reduce){
  .page-contact .ct-intent__panel{ animation: none; }
  .page-contact .ct-pill,
  .page-contact .ct-scale__d,
  .page-contact .ct-field input,
  .page-contact .ct-field select,
  .page-contact .ct-field textarea{ transition: none; }
  .page-contact .ct-pill:hover{ transform: none; }
  .page-contact .ct-partner__item:nth-child(even){ transform: none; }
}