/* ===== 意见反馈 · 联系页 ===== */
.page-contact {
  --c-line-soft: rgba(199, 208, 218, 0.12);
  --c-line-mid: rgba(199, 208, 218, 0.26);
  --c-panel-flat: linear-gradient(160deg, rgba(18, 44, 74, 0.88), rgba(11, 27, 46, 0.94));
  --c-cut-lg: 22px;
  --c-cut-md: 16px;
}

/* ---------- 区块标题组 ---------- */
.page-contact .c-sec-head {
  max-width: 700px;
  margin: 0 0 clamp(22px, 3.4vw, 36px);
}

.page-contact .c-sec-head .headline {
  margin: 10px 0 12px;
}

.page-contact .c-sec-lede {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
}

/* ---------- 首屏 ---------- */
.page-contact .c-hero {
  padding-top: clamp(18px, 3vw, 30px);
}

.page-contact .c-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 38px);
}

.page-contact .c-hero__rail {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-contact .c-rail-label {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--silver);
  white-space: nowrap;
}

.page-contact .c-rail-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(34, 240, 200, 0.65), rgba(34, 240, 200, 0));
}

.page-contact .c-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 7vw, 3.6rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--white);
  margin: 12px 0 16px;
}

.page-contact .c-hero__lede {
  margin: 0;
  max-width: 42em;
  color: var(--silver);
  font-size: clamp(1rem, 2.2vw, 1.125rem);
  line-height: 1.8;
}

.page-contact .c-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-contact .c-hero__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--panel-glass);
  clip-path: polygon(0 0, calc(100% - var(--c-cut-lg)) 0, 100% var(--c-cut-lg), 100% 100%, var(--c-cut-lg) 100%, 0 calc(100% - var(--c-cut-lg)));
  box-shadow: var(--shadow-lg);
}

.page-contact .c-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(150deg, rgba(34, 240, 200, 0.16), rgba(255, 74, 28, 0.06) 48%, rgba(5, 11, 20, 0.55));
}

.page-contact .c-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

/* ---------- 问题分类 ---------- */
.page-contact .c-types__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .c-type {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 20px 20px;
  background: var(--c-panel-flat);
  clip-path: polygon(0 0, calc(100% - var(--c-cut-md)) 0, 100% var(--c-cut-md), 100% 100%, var(--c-cut-md) 100%, 0 calc(100% - var(--c-cut-md)));
  transition: box-shadow 0.28s var(--ease-out), background 0.28s var(--ease-out);
}

.page-contact .c-type:hover {
  background: linear-gradient(160deg, rgba(20, 52, 86, 0.94), rgba(11, 27, 46, 0.96));
  box-shadow: var(--shadow-glow);
}

.page-contact .c-type__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--neon);
  background: rgba(14, 58, 70, 0.62);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}

.page-contact .c-type__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.01em;
}

.page-contact .c-type__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .c-type__need {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--c-line-mid);
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--silver);
}

.page-contact .c-type__need-label {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--amber);
}

/* ---------- 联系渠道 ---------- */
.page-contact .c-channels__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-contact .c-channel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px 24px;
  background: var(--panel-glass);
  clip-path: polygon(0 0, calc(100% - var(--c-cut-lg)) 0, 100% var(--c-cut-lg), 100% 100%, var(--c-cut-lg) 100%, 0 calc(100% - var(--c-cut-lg)));
  transition: box-shadow 0.3s var(--ease-out);
}

.page-contact .c-channel:hover {
  box-shadow: var(--shadow-glow);
}

.page-contact .c-channel .tag {
  align-self: flex-start;
}

.page-contact .c-channel__name {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--white);
}

.page-contact .c-channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(0.9375rem, 2.6vw, 1.0625rem);
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--neon);
  overflow-wrap: anywhere;
}

.page-contact .c-channel__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .c-channel .copy-btn {
  align-self: flex-start;
  margin-top: auto;
}

/* ---------- 回复节奏 ---------- */
.page-contact .c-timing__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .c-timing__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 18px;
  padding: 20px 20px 20px 18px;
  background: linear-gradient(120deg, rgba(14, 58, 70, 0.5), rgba(11, 27, 46, 0.55));
  border-left: 2px solid rgba(34, 240, 200, 0.55);
}

.page-contact .c-timing__no {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: rgba(199, 208, 218, 0.38);
}

.page-contact .c-timing__name {
  margin: 0 0 6px;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--white);
}

.page-contact .c-timing__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 提交信息 ---------- */
.page-contact .c-materials__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-contact .c-checklist {
  list-style: none;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .c-checklist li {
  position: relative;
  padding-left: 30px;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--silver);
}

.page-contact .c-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.42em;
  width: 14px;
  height: 14px;
  border: 1px solid rgba(34, 240, 200, 0.75);
  background: linear-gradient(135deg, rgba(34, 240, 200, 0.3), rgba(34, 240, 200, 0.04));
}

.page-contact .c-materials__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--panel-glass);
  clip-path: polygon(var(--c-cut-lg) 0, 100% 0, 100% calc(100% - var(--c-cut-lg)), calc(100% - var(--c-cut-lg)) 100%, 0 100%, 0 var(--c-cut-lg));
}

.page-contact .c-materials__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 45 / 28;
  object-fit: cover;
}

/* ---------- 合作与共建 ---------- */
.page-contact .c-partner__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 46px);
}

.page-contact .c-partner__intro .headline {
  margin: 10px 0 14px;
}

.page-contact .c-partner__intro p {
  margin: 0 0 14px;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--silver);
}

.page-contact .c-partner__intro p:last-child {
  margin-bottom: 0;
}

.page-contact .c-partner__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .c-partner__item {
  padding: 18px 20px 18px 22px;
  background: linear-gradient(120deg, rgba(18, 44, 74, 0.58), rgba(11, 27, 46, 0.5));
  border-left: 2px solid rgba(124, 92, 255, 0.6);
}

.page-contact .c-partner__item h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

.page-contact .c-partner__item p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 备案信息带 ---------- */
.page-contact .c-registry__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 30px;
  padding: 18px 0;
  border-top: 1px solid var(--c-line-mid);
  border-bottom: 1px solid var(--c-line-mid);
}

.page-contact .c-registry__item {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.page-contact .c-registry__note {
  margin: 16px 0 0;
  font-size: 0.875rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .c-registry__note a {
  color: var(--brand-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 138, 61, 0.4);
}

.page-contact .c-registry__note a:hover {
  color: var(--brand);
  border-bottom-color: var(--brand);
}

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .page-contact .c-types__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .c-timing__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 20px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-contact .c-hero__grid {
    grid-template-columns: 68px minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: stretch;
    gap: clamp(26px, 3.6vw, 52px);
  }

  .page-contact .c-hero__rail {
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 6px;
  }

  .page-contact .c-rail-label {
    writing-mode: vertical-rl;
    font-size: 1.25rem;
    letter-spacing: 0.34em;
  }

  .page-contact .c-rail-line {
    width: 1px;
    flex: 1;
    min-height: 150px;
    background: linear-gradient(180deg, rgba(34, 240, 200, 0.7), rgba(34, 240, 200, 0));
  }

  .page-contact .c-hero__media {
    align-self: stretch;
  }

  .page-contact .c-hero__media img {
    height: 100%;
    min-height: 340px;
    aspect-ratio: auto;
  }

  .page-contact .c-materials__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-contact .c-partner__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 820px) {
  .page-contact .c-channels__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 22px;
  }

  .page-contact .c-channel:nth-child(1) {
    padding-bottom: 46px;
  }

  .page-contact .c-channel:nth-child(2) {
    margin-top: 42px;
  }

  .page-contact .c-channel:nth-child(3) {
    margin-top: 16px;
    padding-bottom: 34px;
  }
}

@media (min-width: 1080px) {
  .page-contact .c-types__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .c-type,
  .page-contact .c-channel {
    transition: none;
  }
}
<<<END>>>