/* ===== 帮助中心 · 页面专属样式 ===== */

.page-faq .faq-hero {
  position: relative;
  margin-top: 10px;
  padding: clamp(32px, 6vw, 64px) 0 clamp(40px, 7vw, 84px);
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
  isolation: isolate;
  border-radius: var(--radius);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -180px;
  right: -160px;
  width: clamp(300px, 46vw, 600px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 196, 182, .28) 0%, rgba(46, 196, 182, 0) 66%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  bottom: -220px;
  left: -130px;
  width: clamp(240px, 38vw, 500px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  border: 1px solid rgba(255, 106, 43, .26);
  box-shadow: inset 0 0 0 34px rgba(255, 106, 43, .06);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-size: clamp(34px, 8vw, 76px);
  line-height: 1.05;
  letter-spacing: -.035em;
  font-weight: 800;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  margin: clamp(16px, 2vw, 22px) 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: rgba(244, 239, 230, .8);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__jump a {
  display: inline-block;
  padding: 9px 16px;
  border: 1px solid rgba(244, 239, 230, .28);
  border-radius: 999px;
  color: var(--paper);
  font-size: 14px;
  text-decoration: none;
  transition: color .22s var(--ease), border-color .22s var(--ease), background-color .22s var(--ease);
}

.page-faq .faq-hero__jump a:hover {
  border-color: var(--signal);
  background: rgba(255, 106, 43, .16);
  color: var(--white);
}

.page-faq .faq-hero__jump a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.page-faq .faq-hero__figure {
  margin: 0;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid rgba(244, 239, 230, .14);
  box-shadow: 0 34px 70px -46px rgba(0, 0, 0, .9);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  align-items: start;
  padding: clamp(32px, 5vw, 56px) 0 clamp(48px, 7vw, 80px);
}

.page-faq .faq-rail__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 12px;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-rail__list > li {
  flex: 0 0 auto;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--slate);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: color .22s var(--ease), border-color .22s var(--ease), background-color .22s var(--ease);
}

.page-faq .faq-rail__link:hover {
  color: var(--ink);
  border-color: var(--signal);
  background: rgba(255, 106, 43, .09);
}

.page-faq .faq-rail__link[aria-current="true"] {
  color: var(--ink);
  font-weight: 600;
  border-color: var(--celadon);
  background: rgba(46, 196, 182, .14);
}

.page-faq .faq-rail__link:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.page-faq .faq-rail__count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--stone);
  opacity: .75;
}

.page-faq .faq-rail__link:hover .faq-rail__count,
.page-faq .faq-rail__link[aria-current="true"] .faq-rail__count {
  color: var(--celadon-deep);
  opacity: 1;
}

.page-faq .faq-rail__help {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  background: rgba(46, 196, 182, .09);
  border: 1px solid rgba(46, 196, 182, .32);
}

.page-faq .faq-rail__help p {
  margin: 0 0 8px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate);
}

.page-faq .faq-rail__help a {
  color: var(--celadon-deep);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .faq-rail__help a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(38px, 6vw, 68px);
}

.page-faq .faq-group__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(14px, 2vw, 20px);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-strong);
}

.page-faq .faq-group__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--signal);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-size: clamp(23px, 3.2vw, 33px);
  line-height: 1.2;
  letter-spacing: -.025em;
  color: var(--ink);
}

.page-faq .faq-group__intro {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .faq-list {
  border-top: 1px solid var(--line-strong);
}

.page-faq .faq-item {
  position: relative;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item > summary {
  position: relative;
  display: block;
  padding: 17px 46px 17px 18px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.6vw, 16.5px);
  font-weight: 600;
  line-height: 1.65;
  color: var(--ink);
  transition: background-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item > summary:hover {
  background: rgba(11, 27, 43, .035);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

.page-faq .faq-item > summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 18px;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--celadon-deep);
}

.page-faq .faq-item[open] > summary {
  background: rgba(46, 196, 182, .08);
}

.page-faq .faq-item[open] > summary::after {
  content: "\2212";
}

.page-faq .faq-item[open] > summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--celadon);
}

.page-faq .faq-item__a {
  padding: 2px 18px 20px 21px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-item__a p {
  margin: 0 0 12px;
}

.page-faq .faq-item__a p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-item__a a {
  color: var(--celadon-deep);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-item__a a:hover {
  color: var(--ink);
}

.page-faq .faq-item__a a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.page-faq .faq-flowfigure {
  margin: clamp(20px, 3vw, 28px) 0 0;
}

.page-faq .faq-flowfigure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.page-faq .faq-flowfigure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--stone);
}

.page-faq .faq-support {
  margin-top: clamp(22px, 3.4vw, 30px);
  padding: clamp(22px, 3.4vw, 34px);
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--paper);
}

.page-faq .faq-support__title {
  margin: 0 0 8px;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.35;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .faq-support__note {
  margin: 0 0 20px;
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 239, 230, .72);
}

.page-faq .faq-support__grid {
  display: grid;
  gap: 14px;
}

.page-faq .faq-support .c28-contact-line {
  padding-top: 12px;
  border-top: 1px solid var(--line-dark);
}

.page-faq .faq-support .c28-contact-line__label {
  color: rgba(244, 239, 230, .58);
}

.page-faq .faq-support .c28-contact-line__value {
  color: var(--paper);
  line-height: 1.7;
  word-break: break-word;
}

.page-faq .faq-support .c28-contact-line__value a {
  color: var(--focus);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 209, 102, .5);
}

.page-faq .faq-support .c28-contact-line__value a:hover {
  border-bottom-color: var(--focus);
}

.page-faq .faq-support .c28-contact-line__value a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.page-faq .faq-support__foot {
  margin: 22px 0 0;
}

.page-faq .faq-support__foot a {
  display: inline-block;
  padding: 11px 20px;
  border-radius: 999px;
  border: 1px solid rgba(46, 196, 182, .55);
  color: var(--celadon);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color .22s var(--ease), color .22s var(--ease);
}

.page-faq .faq-support__foot a:hover {
  background: rgba(46, 196, 182, .16);
  color: var(--paper);
}

.page-faq .faq-support__foot a:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

@media (min-width: 700px) {
  .page-faq .faq-support__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 26px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: clamp(48px, 6vw, 76px) 0 clamp(56px, 7vw, 88px);
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-faq .faq-layout {
    grid-template-columns: 234px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-faq .faq-rail__sticky {
    position: sticky;
    top: 108px;
  }

  .page-faq .faq-rail__list {
    display: block;
    overflow: visible;
    padding: 0;
    border-bottom: 0;
    border-left: 1px solid var(--line);
  }

  .page-faq .faq-rail__list > li {
    display: block;
  }

  .page-faq .faq-rail__link {
    justify-content: space-between;
    padding: 11px 10px 11px 16px;
    margin-left: -1px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    white-space: normal;
    background: transparent;
  }

  .page-faq .faq-rail__link:hover {
    border-left-color: var(--signal);
    background: rgba(255, 106, 43, .08);
  }

  .page-faq .faq-rail__link[aria-current="true"] {
    border-left-color: var(--celadon);
    background: rgba(46, 196, 182, .12);
  }
}
<<<END>>>