/* ============================================================
   page-contact · 意见反馈
   ============================================================ */

.page-contact {
  --pc-hair: rgba(110, 124, 116, 0.30);
  --pc-gold-line: rgba(201, 162, 39, 0.42);
  --pc-field-line: rgba(110, 124, 116, 0.55);
  --pc-field-bg: #FBF7EC;
  --pc-tip-bg: rgba(229, 221, 200, 0.55);
  display: block;
  padding-bottom: 88px;
  background:
    radial-gradient(120% 55% at 88% 0%, rgba(31, 75, 62, 0.10), transparent 62%),
    radial-gradient(80% 45% at 0% 46%, rgba(169, 118, 90, 0.07), transparent 68%);
}

/* ---------- 面包屑 ---------- */
.page-contact .crumbs {
  padding-top: 22px;
  padding-bottom: 4px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: 30px;
  padding: 24px 0 0;
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
    gap: 56px;
  }
}

.page-contact .contact-hero__eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--clay);
}

.page-contact .contact-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 31px;
  line-height: 1.28;
  letter-spacing: 0.02em;
  color: var(--ink);
}

@media (min-width: 768px) {
  .page-contact .contact-hero h1 {
    font-size: 42px;
  }
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 33em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-contact .contact-hero__media {
  position: relative;
}

.page-contact .contact-hero__media .media-frame {
  border: 1px solid var(--pc-gold-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

@media (min-width: 900px) {
  .page-contact .contact-hero__media::before {
    content: "";
    position: absolute;
    inset: 18px -16px -16px 18px;
    border: 1px solid var(--pc-gold-line);
    border-radius: var(--radius-lg);
    pointer-events: none;
  }
}

/* ---------- 章节通用 ---------- */
.page-contact .contact-block {
  margin-top: 60px;
  padding-top: 52px;
  border-top: 1px solid var(--pc-hair);
}

@media (min-width: 768px) {
  .page-contact .contact-block {
    margin-top: 72px;
    padding-top: 60px;
  }
}

.page-contact .contact-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  margin-bottom: 16px;
}

.page-contact .contact-head__num {
  font-size: 12px;
  line-height: 1.2;
  letter-spacing: 0.12em;
  color: var(--moss);
  border: 1px solid var(--pc-gold-line);
  border-radius: var(--radius);
  padding: 3px 9px;
}

.page-contact .contact-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 21px;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--ink);
}

@media (min-width: 768px) {
  .page-contact .contact-head__title {
    font-size: 26px;
  }
}

.page-contact .contact-head__kicker {
  margin-left: auto;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--stone);
}

.page-contact .contact-block__lead {
  margin: 0;
  max-width: 42em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}

.page-contact .contact-block__foot {
  margin: 28px 0 0;
  padding: 16px 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  background: var(--pc-tip-bg);
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* ---------- 01 反馈前 ---------- */
.page-contact .prep {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
}

.page-contact .prep__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  padding: 22px 0;
  border-top: 1px solid var(--pc-hair);
}

.page-contact .prep__item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .prep__num {
  padding-top: 5px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--moss);
}

.page-contact .prep__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.45;
  color: var(--ink);
}

.page-contact .prep__text {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-contact .prep__link {
  display: inline-block;
  margin-top: 10px;
  font-size: 14px;
  color: var(--moss);
  text-decoration: none;
  border-bottom: 1px solid var(--pc-gold-line);
  padding-bottom: 2px;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-contact .prep__link:hover,
.page-contact .prep__link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--gold);
}

/* ---------- 02 表单区 ---------- */
.page-contact .contact-grid {
  display: grid;
  gap: 28px;
  margin-top: 30px;
}

@media (min-width: 1024px) {
  .page-contact .contact-grid {
    grid-template-columns: 288px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-contact .contact-rail {
    position: sticky;
    top: 104px;
  }
}

.page-contact .contact-rail {
  position: relative;
  overflow: hidden;
  background: var(--pine);
  border: 1px solid var(--pc-gold-line);
  border-radius: var(--radius-lg);
  padding: 24px 22px 22px;
}

.page-contact .contact-rail::after {
  content: "";
  position: absolute;
  right: -50px;
  bottom: -60px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(201, 162, 39, 0.20), transparent 70%);
  pointer-events: none;
}

.page-contact .contact-rail__title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--gold-bright);
}

.page-contact .rail-list {
  margin: 0;
  padding: 0;
}

.page-contact .rail-item {
  display: grid;
  gap: 3px;
  padding: 11px 0;
  border-top: 1px solid rgba(232, 199, 102, 0.20);
}

.page-contact .rail-item__label {
  font-size: 13px;
  color: rgba(243, 238, 223, 0.68);
}

.page-contact .rail-item__value {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .contact-rail__foot {
  position: relative;
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(232, 199, 102, 0.20);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(243, 238, 223, 0.82);
}

.page-contact .contact-rail__foot .mono {
  color: var(--gold-bright);
  white-space: nowrap;
}

.page-contact .contact-form {
  background: var(--paper);
  border: 1px solid var(--pc-field-line);
  border-radius: var(--radius-lg);
  padding: 22px 18px 24px;
}

@media (min-width: 768px) {
  .page-contact .contact-form {
    padding: 32px 30px 34px;
  }
}

.page-contact .field {
  padding: 18px 0;
  border-top: 1px solid var(--pc-hair);
}

.page-contact .field:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-contact .field__label {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--text);
}

.page-contact .req {
  color: var(--cinnabar);
  font-weight: 700;
}

.page-contact .field__input {
  display: block;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  padding: 11px 13px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
  background: var(--pc-field-bg);
  border: 1px solid var(--pc-field-line);
  border-radius: var(--radius);
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-contact .field__input::placeholder {
  color: var(--stone);
}

.page-contact .field__input:hover {
  border-color: rgba(201, 162, 39, 0.55);
}

.page-contact .field__input:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 1px var(--gold), 0 0 0 4px rgba(201, 162, 39, 0.16);
}

.page-contact .field__input--area {
  min-height: 108px;
  resize: vertical;
}

.page-contact .field .note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--stone);
}

/* 问题类型筛选 / 提示 */
.page-contact .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .filter-tips {
  display: grid;
  gap: 6px;
  margin-top: 12px;
}

.page-contact .filter-tip {
  margin: 0;
  padding: 9px 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
  background: var(--pc-tip-bg);
  border-left: 3px solid rgba(201, 162, 39, 0.65);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.page-contact .filter-empty {
  margin: 12px 0 0;
  font-size: 14px;
  color: var(--stone);
}

/* 提交区 */
.page-contact .contact-form__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 20px;
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--pc-hair);
}

.page-contact .contact-submit {
  color: var(--ink);
  border-color: var(--gold);
  background: transparent;
  padding: 11px 30px;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-contact .contact-submit:hover,
.page-contact .contact-submit:focus-visible {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

.page-contact .contact-submit[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
}

.page-contact .contact-submit.is-loading {
  opacity: 0.7;
  pointer-events: none;
}

.page-contact .contact-form__note {
  margin: 0;
  flex: 1 1 220px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

.page-contact .contact-form__note a {
  color: var(--moss);
  text-decoration: none;
  border-bottom: 1px solid var(--pc-gold-line);
}

.page-contact .contact-form__note a:hover {
  border-bottom-color: var(--gold);
}

/* ---------- 03 提交之后 ---------- */
.page-contact .after-figure {
  margin: 28px 0 0;
}

.page-contact .after-figure .media-frame {
  border: 1px solid var(--pc-gold-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-contact .flow {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

@media (min-width: 820px) {
  .page-contact .flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .flow__step {
    padding: 0 26px;
    border-left: 1px solid var(--pc-hair);
  }

  .page-contact .flow__step:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .page-contact .flow__step:last-child {
    padding-right: 0;
  }
}

.page-contact .flow__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 12px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ink);
  background: rgba(201, 162, 39, 0.14);
  border: 1px solid var(--gold);
  border-radius: 50%;
}

.page-contact .flow__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.45;
  color: var(--ink);
}

.page-contact .flow__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 04 直接联系 ---------- */
.page-contact .channels {
  margin-top: 30px;
  display: grid;
  gap: 0;
}

.page-contact .channel {
  display: grid;
  gap: 6px;
  padding: 20px 0;
  border-top: 1px solid var(--pc-hair);
}

.page-contact .channel:first-child {
  border-top: 0;
  padding-top: 0;
}

@media (min-width: 860px) {
  .page-contact .channel {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 8px 28px;
    align-items: start;
    padding: 22px 0;
  }

  .page-contact .channel:first-child {
    padding-top: 0;
  }
}

.page-contact .channel__label {
  margin: 0;
  padding-top: 2px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--stone);
}

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

.page-contact .channel__value {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--moss);
  word-break: break-word;
}

.page-contact .channel__value--plain {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--ink);
}

.page-contact .channel__desc {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 05 其他入口 ---------- */
.page-contact .entrances {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-contact .entrances__link {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  padding: 18px 4px;
  border-top: 1px solid var(--pc-hair);
  text-decoration: none;
  color: var(--text);
  transition: background-color 0.18s var(--ease);
}

.page-contact .entrances li:first-child .entrances__link {
  border-top: 0;
}

.page-contact .entrances__link:hover,
.page-contact .entrances__link:focus-visible {
  background: rgba(229, 221, 200, 0.42);
}

.page-contact .entrances__num {
  min-width: 30px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

.page-contact .entrances__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.4;
  color: var(--ink);
  border-bottom: 1px solid transparent;
  transition: border-color 0.18s var(--ease);
}

.page-contact .entrances__link:hover .entrances__title,
.page-contact .entrances__link:focus-visible .entrances__title {
  border-bottom-color: var(--gold);
}

.page-contact .entrances__desc {
  flex: 1 1 220px;
  min-width: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

@media (min-width: 720px) {
  .page-contact .entrances__desc {
    text-align: right;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .field__input,
  .page-contact .contact-submit,
  .page-contact .prep__link,
  .page-contact .entrances__link,
  .page-contact .entrances__title {
    transition: none;
  }
}