/* ===== 联系入口页 /feedback/ ===== */

.page-contact {
  --contact-shadow: var(--shadow-card);
  --contact-ink-soft: rgba(36, 26, 43, .7);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(900px 520px at 82% 8%, rgba(110, 27, 51, .38), transparent 62%),
    radial-gradient(700px 460px at 8% 92%, rgba(16, 64, 60, .32), transparent 66%),
    var(--c-night);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 52px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-contact .contact-hero__lead {
  min-width: 0;
}

.page-contact .contact-hero__lead h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 5.4vw, 3.5rem);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--c-paper);
  margin: 14px 0 0;
}

.page-contact .contact-hero__sub {
  max-width: 46ch;
  margin: 20px 0 0;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--c-mist);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-contact .contact-hero__channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  min-width: 0;
  scroll-margin-top: 140px;
}

/* 通道卡片 */
.page-contact .contact-ch {
  display: grid;
  gap: 10px;
  min-width: 0;
  padding: 22px 24px 24px;
  border: 1px solid var(--line-gold-soft);
  border-left: 2px solid var(--c-wine);
  border-radius: 3px;
  background: linear-gradient(158deg, rgba(58, 28, 78, .74), rgba(27, 15, 38, .6));
  box-shadow: var(--contact-shadow);
  transition: transform .32s var(--ease), border-color .32s var(--ease);
}

.page-contact .contact-ch:hover,
.page-contact .contact-ch:focus-within {
  transform: translateY(-2px);
  border-left-color: var(--c-gold);
}

.page-contact .contact-ch .card__tag {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--c-gold);
  margin: 0;
}

.page-contact .contact-ch .card__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-22);
  line-height: 1.3;
  color: var(--c-paper);
  margin: 0;
}

.page-contact .contact-ch__value {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  letter-spacing: .01em;
  color: var(--c-gold-soft);
  word-break: break-all;
  margin: 0;
}

.page-contact .contact-ch__note {
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--c-mist);
  margin: 0;
}

.page-contact .contact-ch__link {
  justify-self: start;
  margin-top: 4px;
}

/* 复制按钮 */
.page-contact .copy-btn {
  justify-self: start;
  align-self: start;
  padding: 8px 16px;
  border: 1px solid var(--line-gold);
  border-radius: 2px;
  background: transparent;
  color: var(--c-gold-soft);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .08em;
  cursor: pointer;
  transition: background .3s var(--ease), color .3s var(--ease);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  background: rgba(201, 162, 74, .16);
  color: var(--c-paper);
}

/* 首屏纸纹长图 */
.page-contact .contact-hero__band {
  display: block;
  aspect-ratio: auto;
  max-width: 100%;
  margin: clamp(34px, 5vw, 56px) 0 0;
  border: 1px solid var(--line-gold-soft);
  border-radius: 3px;
  overflow: hidden;
  background: var(--c-cellar);
}

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

.page-contact .media__caption {
  padding: 10px 14px 0;
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--c-mist);
}

/* ---------- 值班时段 ---------- */
.page-contact .contact-hours__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 48px);
  min-width: 0;
}

.page-contact .contact-hours__copy {
  min-width: 0;
}

.page-contact .contact-hours h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  line-height: 1.22;
  letter-spacing: -.015em;
  color: var(--c-paper);
  margin: 12px 0 0;
}

.page-contact .contact-hours__text {
  max-width: 56ch;
  margin: 18px 0 0;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--c-mist);
}

/* 刻度尺 */
.page-contact .contact-scale {
  margin-top: 30px;
  max-width: 520px;
}

.page-contact .contact-scale__track {
  position: relative;
  height: 34px;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.page-contact .contact-scale__track::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    to right,
    var(--line-dark) 0 1px,
    transparent 1px 4.1667%
  );
  opacity: .7;
}

.page-contact .contact-scale__band {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 37.5%;
  width: 50%;
  background: linear-gradient(90deg, rgba(201, 162, 74, .3), rgba(231, 211, 160, .62) 50%, rgba(201, 162, 74, .28));
  box-shadow: inset 0 0 0 1px var(--line-gold);
}

.page-contact .contact-scale__ticks {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .05em;
  color: var(--c-mist);
}

.page-contact .contact-hours__facts {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
  max-width: 520px;
}

.page-contact .contact-hours__facts li {
  display: grid;
  gap: 4px;
  padding-top: 16px;
  border-top: 1px solid var(--line-gold-soft);
}

.page-contact .contact-hours__num {
  font-family: var(--font-mono);
  font-size: var(--fs-30);
  font-weight: 500;
  letter-spacing: -.01em;
  color: var(--c-gold-soft);
}

.page-contact .contact-hours__label {
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--c-mist);
}

.page-contact .contact-hours__media {
  display: block;
  align-self: start;
  max-width: 100%;
  border: 1px solid var(--line-gold-soft);
  border-radius: 3px;
  overflow: hidden;
  background: var(--c-night);
}

/* ---------- 处理流程 ---------- */
.page-contact .contact-flow__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  line-height: 1.22;
  letter-spacing: -.015em;
  color: var(--c-paper);
  margin: 12px 0 0;
}

.page-contact .contact-flow__list {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  border: 1px solid var(--line-gold-soft);
  background: var(--line-gold-soft);
}

.page-contact .contact-flow__step {
  position: relative;
  min-width: 0;
  padding: 26px 22px 30px;
  background: rgba(16, 64, 60, .55);
  transition: background .3s var(--ease), transform .3s var(--ease);
}

.page-contact .contact-flow__step:hover {
  background: rgba(27, 15, 38, .78);
  transform: translateY(-2px);
}

.page-contact .contact-flow__no {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--c-gold);
}

.page-contact .contact-flow__step h3 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-22);
  line-height: 1.3;
  color: var(--c-paper);
  margin: 10px 0 0;
}

.page-contact .contact-flow__step p {
  margin: 12px 0 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--c-mist);
}

.page-contact .contact-flow__time {
  display: inline-block;
  margin-top: 16px;
  padding-top: 10px;
  border-top: 1px solid var(--line-gold-soft);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .05em;
  color: var(--c-gold-soft);
  opacity: .82;
  transition: opacity .3s var(--ease);
}

.page-contact .contact-flow__step:hover .contact-flow__time {
  opacity: 1;
}

/* ---------- 常见请求 ---------- */
.page-contact .contact-requests h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  line-height: 1.22;
  letter-spacing: -.015em;
  color: var(--c-ink);
  margin: 12px 0 0;
}

.page-contact .contact-requests__lead {
  max-width: 52ch;
  margin: 16px 0 0;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--contact-ink-soft);
}

.page-contact .contact-requests__list {
  margin-top: clamp(26px, 4vw, 40px);
  border-top: 1px solid var(--c-lilac);
}

.page-contact .contact-req {
  border-bottom: 1px solid var(--c-lilac);
}

.page-contact .contact-req summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  padding: 20px 2px;
  cursor: pointer;
  list-style: none;
  transition: background .3s var(--ease);
}

.page-contact .contact-req summary::-webkit-details-marker {
  display: none;
}

.page-contact .contact-req summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--fs-22);
  line-height: 1;
  color: var(--c-gold);
}

.page-contact .contact-req[open] summary::after {
  content: "\2212";
}

.page-contact .contact-req summary:hover {
  background: rgba(228, 222, 232, .34);
}

.page-contact .contact-req__no {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .12em;
  color: var(--c-wine);
}

.page-contact .contact-req__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-22);
  line-height: 1.35;
  color: var(--c-ink);
}

.page-contact .contact-req__hint {
  font-size: var(--fs-14);
  color: var(--contact-ink-soft);
}

.page-contact .contact-req__body {
  padding: 0 2px 24px;
}

.page-contact .contact-req__body p {
  max-width: 720px;
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--contact-ink-soft);
}

/* ---------- 合作与媒体 ---------- */
.page-contact .contact-partners__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 56px);
  min-width: 0;
}

.page-contact .contact-partners__copy {
  min-width: 0;
}

.page-contact .contact-partners h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  line-height: 1.22;
  letter-spacing: -.015em;
  color: var(--c-paper);
  margin: 12px 0 0;
}

.page-contact .contact-partners__copy p {
  max-width: 52ch;
  margin: 18px 0 0;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--c-mist);
}

.page-contact .contact-partners__mail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line-gold-soft);
}

.page-contact .contact-partners__mail-text {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--c-gold-soft);
  word-break: break-all;
}

.page-contact .contact-partners__cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  min-width: 0;
}

.page-contact .contact-partners__card {
  display: grid;
  gap: 10px;
  min-width: 0;
  padding: 24px 24px 26px;
  border: 1px solid var(--line-gold-soft);
  border-radius: 3px;
  background: linear-gradient(150deg, rgba(27, 15, 38, .72), rgba(58, 28, 78, .5));
  box-shadow: var(--contact-shadow);
  transition: transform .32s var(--ease), border-color .32s var(--ease);
}

.page-contact .contact-partners__card:hover {
  transform: translateY(-2px);
  border-color: var(--line-gold);
}

.page-contact .contact-partners__card .card__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--c-gold);
}

.page-contact .contact-partners__card .card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-22);
  line-height: 1.3;
  color: var(--c-paper);
}

.page-contact .contact-partners__list {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .contact-partners__list li {
  position: relative;
  padding-left: 20px;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--c-mist);
}

.page-contact .contact-partners__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 10px;
  height: 1px;
  background: var(--c-gold);
}

/* ---------- 地区与备案 ---------- */
.page-contact .contact-meta__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  min-width: 0;
}

.page-contact .contact-meta h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 3.4vw, 2.25rem);
  line-height: 1.24;
  letter-spacing: -.015em;
  color: var(--c-ink);
  margin: 12px 0 0;
}

.page-contact .contact-meta p {
  max-width: 54ch;
  margin: 16px 0 0;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--contact-ink-soft);
}

.page-contact .contact-meta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--c-lilac);
}

.page-contact .contact-meta__links a {
  font-size: var(--fs-14);
  color: var(--c-wine);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  padding-bottom: 2px;
  transition: color .3s var(--ease), border-color .3s var(--ease);
}

.page-contact .contact-meta__links a:hover {
  color: var(--c-ink);
  border-color: var(--c-ink);
}

.page-contact .contact-meta__list {
  margin: 0;
  border-top: 1px solid var(--c-lilac);
}

.page-contact .contact-meta__list > div {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 20px;
  padding: 15px 0;
  border-bottom: 1px solid var(--c-lilac);
}

.page-contact .contact-meta__list dt {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--c-wine);
}

.page-contact .contact-meta__list dd {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--c-ink);
  word-break: break-all;
  text-align: right;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-partners__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .contact-hours__facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
  }

  .page-contact .contact-hours__facts li {
    padding-top: 18px;
  }
}

@media (min-width: 860px) {
  .page-contact .contact-flow__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .contact-flow__list {
    display: grid;
    gap: 1px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hours__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    column-gap: clamp(40px, 6vw, 72px);
  }

  .page-contact .contact-partners__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    column-gap: clamp(40px, 6vw, 72px);
  }

  .page-contact .contact-meta__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
    column-gap: clamp(40px, 6vw, 72px);
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
    column-gap: clamp(40px, 6vw, 80px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-ch,
  .page-contact .contact-partners__card,
  .page-contact .contact-flow__step,
  .page-contact .copy-btn {
    transition: none;
  }

  .page-contact .contact-ch:hover,
  .page-contact .contact-ch:focus-within,
  .page-contact .contact-partners__card:hover,
  .page-contact .contact-flow__step:hover {
    transform: none;
  }
}