/* ============ 聊球官方版 · 联系与反馈 ============ */
.page-contact {
  --ct-side-w: clamp(300px, 30vw, 380px);
  --ct-radius: var(--r-lg);
  position: relative;
}

/* ---------- 页首 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding: clamp(22px, 4vw, 44px) 0 clamp(34px, 5.5vw, 62px);
  overflow: hidden;
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(30, 44, 85, .55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 44, 85, .55) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: radial-gradient(130% 95% at 14% 0%, #000 0%, rgba(0, 0, 0, .8) 44%, transparent 78%);
  mask-image: radial-gradient(130% 95% at 14% 0%, #000 0%, rgba(0, 0, 0, .8) 44%, transparent 78%);
}

.page-contact .ct-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-contact .ct-hero__grid {
  margin-top: clamp(18px, 3vw, 34px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
}

.page-contact .ct-hero__title {
  margin: 12px 0 18px;
  font-size: clamp(34px, 5.6vw, 66px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--cream);
}

.page-contact .ct-hero__lead {
  margin: 0 0 14px;
  max-width: 34ch;
  font-size: clamp(16px, 1.7vw, 19px);
  line-height: 1.8;
  color: var(--cream);
}

.page-contact .ct-hero__body {
  margin: 0;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--stone);
}

.page-contact .ct-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-contact .ct-hero__visual {
  position: relative;
  margin: 0;
}

.page-contact .ct-hero__visual::after {
  content: "";
  position: absolute;
  left: 18px;
  top: 0;
  width: 68px;
  height: 3px;
  background: var(--cyan);
  transform: skewX(-30deg);
}

.page-contact .ct-hero__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border: 1px solid var(--grid);
  border-radius: var(--ct-radius);
}

/* ---------- 常驻入口提示带 ---------- */
.page-contact .ct-anchor {
  border-top: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
  background: rgba(7, 12, 31, .6);
}

.page-contact .ct-anchor__inner {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 0;
}

.page-contact .ct-anchor__dot {
  flex: 0 0 auto;
  margin-top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  animation: ct-pulse 2.4s var(--ease) infinite;
}

.page-contact .ct-anchor__text {
  margin: 0;
  max-width: 80ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--stone);
}

.page-contact .ct-anchor__text strong {
  color: var(--cream);
  font-weight: 600;
}

@keyframes ct-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(44, 229, 216, .5); opacity: 1; }
  50% { box-shadow: 0 0 0 8px rgba(44, 229, 216, 0); opacity: .5; }
}

/* ---------- 主体栅格 ---------- */
.page-contact .ct-main {
  padding: clamp(42px, 7vw, 86px) 0 clamp(18px, 3vw, 34px);
}

.page-contact .ct-main__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}

/* ---------- 章节题头 ---------- */
.page-contact .ct-head {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-contact .ct-head__title {
  position: relative;
  margin: 10px 0;
  padding-left: 16px;
  font-size: clamp(25px, 3.4vw, 38px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.015em;
  color: var(--cream);
}

.page-contact .ct-head__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: .16em;
  bottom: .16em;
  width: 6px;
  background: var(--cyan);
  transform: skewX(-14deg);
}

.page-contact .ct-head__note {
  margin: 0;
  padding-left: 16px;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--stone);
}

/* ---------- 步骤条 ---------- */
.page-contact .ct-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--grid);
}

.page-contact .ct-step {
  position: relative;
  display: grid;
  grid-template-columns: clamp(42px, 9vw, 62px) minmax(0, 1fr);
  gap: clamp(12px, 2vw, 22px);
  padding: clamp(18px, 2.4vw, 26px) 0;
  border-bottom: 1px solid var(--grid);
}

.page-contact .ct-step::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), rgba(44, 229, 216, 0));
  opacity: 0;
  transition: opacity .3s var(--ease);
}

.page-contact .ct-step:hover::after,
.page-contact .ct-step:focus-within::after {
  opacity: 1;
}

.page-contact .ct-step__no {
  padding-top: 5px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-contact .ct-step__title {
  margin: 0 0 8px;
  font-size: clamp(17px, 1.7vw, 20px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--cream);
}

.page-contact .ct-step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--stone);
}

/* ---------- 反馈类型筛选 ---------- */
.page-contact .ct-types {
  margin-top: clamp(32px, 5vw, 52px);
}

.page-contact .ct-types__title {
  margin: 0;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 700;
  color: var(--cream);
}

.page-contact .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 12px;
}

.page-contact .filter-btn {
  padding: 9px 15px;
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1;
  color: var(--stone);
  background: transparent;
  border: 1px solid var(--grid);
  border-radius: 999px;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-contact .filter-btn:hover {
  color: var(--cream);
  border-color: var(--stone);
}

.page-contact .filter-btn[aria-pressed="true"],
.page-contact .filter-btn.is-active {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(44, 229, 216, .1);
}

.page-contact .filter-count {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--stone);
}

.page-contact .filter-empty {
  margin: 16px 0 0;
  padding: 18px 20px;
  border: 1px dashed var(--grid);
  border-radius: var(--r-md);
  font-size: 15px;
  color: var(--stone);
}

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

.page-contact .ct-type {
  padding: 18px 20px 18px 22px;
  border: 1px solid var(--grid);
  border-left: 3px solid var(--turf);
  border-radius: var(--r-md);
  background: rgba(7, 12, 31, .55);
  transition: background-color .24s var(--ease), border-color .24s var(--ease);
}

.page-contact .ct-type:hover {
  background: rgba(30, 44, 85, .42);
}

.page-contact .ct-type[data-filter-item*="account"] {
  border-left-color: var(--amber);
}

.page-contact .ct-type[data-filter-item*="display"] {
  border-left-color: var(--clay);
}

.page-contact .ct-type__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--cream);
}

.page-contact .ct-type__desc {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

.page-contact .ct-type__sla {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: .03em;
  color: var(--cyan);
}

.page-contact .ct-type__sla::before {
  content: "";
  flex: 0 0 auto;
  margin-top: 7px;
  width: 12px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 联系卡片 ---------- */
.page-contact .ct-side {
  min-width: 0;
}

.page-contact .ct-card {
  position: relative;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--grid);
  border-radius: var(--ct-radius);
  background: linear-gradient(155deg, rgba(30, 44, 85, .62) 0%, rgba(7, 12, 31, .96) 62%);
  overflow: hidden;
}

.page-contact .ct-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 130px;
  height: 3px;
  background: var(--cyan);
  transform: translateX(-26px) skewX(-30deg);
}

.page-contact .ct-card::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79, 139, 98, .32) 0%, rgba(79, 139, 98, 0) 70%);
  pointer-events: none;
}

.page-contact .ct-card__title {
  margin: 8px 0 10px;
  font-size: clamp(21px, 2.3vw, 26px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-contact .ct-card__note {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  font-size: 13.5px;
  color: var(--stone);
}

.page-contact .ct-card__dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  animation: ct-breathe 2.4s var(--ease) infinite;
}

@keyframes ct-breathe {
  0%, 100% { box-shadow: 0 0 0 0 rgba(44, 229, 216, .55); opacity: 1; }
  50% { box-shadow: 0 0 0 8px rgba(44, 229, 216, 0); opacity: .45; }
}

.page-contact .ct-card__list {
  margin: 16px 0 0;
  padding: 0;
  border-top: 1px solid var(--grid);
}

.page-contact .ct-row {
  padding: 15px 0 16px;
  border-bottom: 1px solid rgba(30, 44, 85, .75);
}

.page-contact .ct-row:last-child {
  padding-bottom: 4px;
  border-bottom: 0;
}

.page-contact .ct-row__k {
  display: block;
  margin-bottom: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-contact .ct-row__v {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--cream);
  word-break: break-word;
}

.page-contact .ct-row__v--hot {
  color: var(--cyan);
}

.page-contact .ct-row__v--sans {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  letter-spacing: 0;
  color: var(--stone);
}

/* ---------- 商务合作 ---------- */
.page-contact .ct-coop {
  padding: clamp(46px, 7vw, 92px) 0;
  border-top: 1px solid var(--grid);
  background: linear-gradient(180deg, rgba(7, 12, 31, .82) 0%, rgba(11, 18, 48, 0) 100%);
}

.page-contact .ct-coop__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .ct-coop__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-contact .ct-coop__item {
  padding: clamp(20px, 2.4vw, 28px);
  background: linear-gradient(180deg, rgba(11, 18, 48, .96), rgba(7, 12, 31, .96));
  transition: background .26s var(--ease);
}

.page-contact .ct-coop__item:hover {
  background: linear-gradient(180deg, rgba(30, 44, 85, .92), rgba(11, 18, 48, .96));
}

.page-contact .ct-coop__no {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-contact .ct-coop__item h3 {
  margin: 0 0 10px;
  font-size: clamp(17px, 1.8vw, 20px);
  font-weight: 700;
  color: var(--cream);
}

.page-contact .ct-coop__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

.page-contact .ct-coop__item p.ct-coop__need {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed rgba(30, 44, 85, .95);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--clay);
}

.page-contact .ct-coop__side {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-contact .ct-coop__figure {
  margin: 0;
}

.page-contact .ct-coop__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--grid);
  border-radius: var(--r-md);
}

.page-contact .ct-coop__flow {
  padding: clamp(18px, 2.2vw, 24px);
  border: 1px solid var(--grid);
  border-radius: var(--r-md);
  background: rgba(7, 12, 31, .6);
}

.page-contact .ct-coop__flow h3 {
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 700;
  color: var(--cream);
}

.page-contact .ct-coop__flow ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ct-coop__flow li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--stone);
}

.page-contact .ct-coop__flow li span {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--turf);
}

.page-contact .ct-coop__more {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
}

.page-contact .ct-coop__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 229, 216, .45);
}

.page-contact .ct-coop__more a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 提交前先看 ---------- */
.page-contact .ct-preflight {
  padding: clamp(42px, 7vw, 88px) 0 clamp(56px, 8vw, 104px);
}

.page-contact .ct-preflight__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .ct-next {
  position: relative;
  display: block;
  padding: clamp(20px, 2.4vw, 28px);
  border: 1px solid var(--grid);
  border-radius: var(--r-md);
  background: rgba(7, 12, 31, .5);
  color: inherit;
  text-decoration: none;
  overflow: hidden;
  transition: transform .24s var(--ease), border-color .24s var(--ease), background-color .24s var(--ease);
}

.page-contact .ct-next::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--cyan);
  transform: translateX(-3px) skewX(-10deg);
  transition: transform .28s var(--ease);
}

.page-contact .ct-next:hover,
.page-contact .ct-next:focus-visible {
  border-color: rgba(44, 229, 216, .55);
  background: rgba(30, 44, 85, .45);
  transform: translateY(-2px);
}

.page-contact .ct-next:hover::before,
.page-contact .ct-next:focus-visible::before {
  transform: translateX(0) skewX(-10deg);
}

.page-contact .ct-next__idx {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--turf);
}

.page-contact .ct-next h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--cream);
}

.page-contact .ct-next p {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--stone);
}

.page-contact .ct-next__more {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 780px) {
  .page-contact .ct-preflight__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

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

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: clamp(32px, 5vw, 72px);
  }
}

@media (min-width: 960px) {
  .page-contact .ct-coop__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    gap: clamp(32px, 4vw, 64px);
  }
}

@media (min-width: 1000px) {
  .page-contact .ct-main__grid {
    grid-template-columns: minmax(0, 1fr) var(--ct-side-w);
    gap: clamp(40px, 5vw, 80px);
  }

  .page-contact .ct-side {
    position: sticky;
    top: calc(var(--head-h) + 28px);
  }
}

@media (max-width: 999px) {
  .page-contact .ct-side {
    position: sticky;
    bottom: 0;
    z-index: 8;
  }

  .page-contact .ct-card {
    padding: 16px 18px;
    border-radius: var(--r-md) var(--r-md) 0 0;
    background: linear-gradient(180deg, rgba(7, 12, 31, .97) 0%, rgba(11, 18, 48, .99) 100%);
    box-shadow: 0 -18px 40px rgba(7, 12, 31, .9);
  }

  .page-contact .ct-card::after {
    display: none;
  }

  .page-contact .ct-card__title {
    margin: 6px 0 6px;
    font-size: 18px;
  }

  .page-contact .ct-card__note {
    font-size: 12.5px;
  }

  .page-contact .ct-card__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 16px;
    margin-top: 12px;
    border-top: 0;
  }

  .page-contact .ct-row {
    padding: 0;
    border-bottom: 0;
  }

  .page-contact .ct-row:last-child {
    padding-bottom: 0;
  }

  .page-contact .ct-row__k {
    margin-bottom: 3px;
    font-size: 10px;
    letter-spacing: .14em;
  }

  .page-contact .ct-row__v,
  .page-contact .ct-row__v--sans {
    font-size: 12.5px;
    line-height: 1.55;
  }
}

@media (max-width: 480px) {
  .page-contact .ct-card__list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-contact .ct-step {
    grid-template-columns: 34px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-anchor__dot,
  .page-contact .ct-card__dot {
    animation: none;
  }

  .page-contact .ct-next,
  .page-contact .ct-step::after,
  .page-contact .ct-type {
    transition: none;
  }
}