.page-faq {
  background: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(40px, 8vw, 84px) 0 clamp(30px, 5vw, 52px);
  border-bottom: 2px solid var(--line-strong);
}
.page-faq .faq-hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.page-faq .faq-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.38;
  filter: grayscale(0.2) contrast(1.05);
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(11, 31, 26, 0.4) 0%, rgba(11, 31, 26, 0.92) 76%, var(--ink-900) 100%),
    repeating-linear-gradient(90deg, transparent 0 78px, rgba(199, 209, 204, 0.07) 78px 80px);
}
.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero .eyebrow {
  color: var(--yellow);
}
.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-size: clamp(34px, 8vw, 66px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 10px 0 18px;
  max-width: 16ch;
  text-wrap: balance;
}
.page-faq .faq-hero__lead {
  max-width: 62ch;
  margin: 0;
  color: var(--cool);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
}
.page-faq .faq-hero__meta {
  margin: 22px 0 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- 快捷入口 ---------- */
.page-faq .faq-quick {
  position: relative;
  z-index: 2;
  margin-top: -24px;
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr;
}
@media (min-width: 700px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
@media (min-width: 1060px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}
.page-faq .faq-quick__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 16px 16px;
  background: var(--paper);
  color: var(--char);
  border: 2px solid var(--char);
  box-shadow: var(--shadow-soft);
  text-decoration: none;
  transition: transform 140ms ease, background-color 140ms ease, color 140ms ease;
}
.page-faq .faq-quick__num {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--red);
}
.page-faq .faq-quick__label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.35;
}
.page-faq .faq-quick__item:hover,
.page-faq .faq-quick__item:focus-visible {
  background: var(--red);
  color: var(--paper);
  transform: translate(-2px, -2px);
}
.page-faq .faq-quick__item:hover .faq-quick__num,
.page-faq .faq-quick__item:focus-visible .faq-quick__num {
  color: var(--yellow);
}

/* ---------- 分类速跳 ---------- */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
}
.page-faq .faq-filter__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gray);
  margin-right: 4px;
}
.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--cool);
  background: transparent;
  border: 1px solid var(--line-strong);
  text-decoration: none;
  transition: background-color 140ms ease, color 140ms ease, border-color 140ms ease;
}
.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--char);
}

/* ---------- 主体栅格 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 24px;
  padding: clamp(28px, 5vw, 48px) 0 clamp(48px, 8vw, 88px);
}
@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: 228px minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }
}

/* ---------- 左侧分类时间轴 ---------- */
.page-faq .faq-rail {
  display: none;
}
@media (min-width: 980px) {
  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: 92px;
  }
}
.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gray);
}
.page-faq .faq-rail .rail {
  display: flex;
  flex-direction: column;
  border-left: 2px solid var(--line-strong);
}
.page-faq .faq-rail .rail-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-left: -2px;
  padding: 10px 12px;
  border-left: 2px solid transparent;
  color: var(--cool);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: background-color 140ms ease, color 140ms ease, border-color 140ms ease;
}
.page-faq .faq-rail .rail-link__num {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gray);
}
.page-faq .faq-rail .rail-link:hover {
  background: var(--ink-800);
  color: var(--paper);
}
.page-faq .faq-rail .rail-link[aria-current="true"] {
  background: var(--yellow);
  border-left-color: var(--red);
  color: var(--char);
  font-weight: 700;
}
.page-faq .faq-rail .rail-link[aria-current="true"] .rail-link__num {
  color: var(--red);
}

/* ---------- 问题面板 ---------- */
.page-faq .faq-main {
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-width: 0;
}
.page-faq .faq-section {
  border: 2px solid var(--line-strong);
  border-left-width: 6px;
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
  padding: clamp(20px, 3.5vw, 34px);
  scroll-margin-top: 96px;
}
.page-faq .faq-section--paper {
  background: var(--paper);
  color: var(--char);
  border-color: var(--char);
  border-left-color: var(--red);
}
.page-faq .faq-section--accent {
  border-left-color: var(--red);
}
.page-faq .faq-section__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding-bottom: 16px;
  margin-bottom: 20px;
  border-bottom: 2px solid var(--line-strong);
}
.page-faq .faq-section--paper .faq-section__head {
  border-bottom-color: rgba(10, 15, 13, 0.25);
}
.page-faq .faq-section__num {
  font-size: 30px;
  line-height: 1;
  font-weight: 700;
  color: var(--yellow);
  padding-top: 2px;
}
.page-faq .faq-section--paper .faq-section__num {
  color: var(--red);
}
.page-faq .faq-section__title {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}
.page-faq .faq-section__sub {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--cool);
}
.page-faq .faq-section--paper .faq-section__sub {
  color: var(--gray);
}
.page-faq .faq-section__foot {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  color: var(--cool);
}
.page-faq .faq-section--paper .faq-section__foot {
  border-top-color: rgba(10, 15, 13, 0.2);
  color: var(--ink-700);
}
.page-faq .faq-section a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .faq-section--paper a {
  color: var(--red);
}
.page-faq .faq-section a:hover {
  color: var(--yellow);
}
.page-faq .faq-section--paper a:hover {
  color: var(--yellow-deep);
}

/* ---------- 步骤条 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-faq .faq-steps--tight {
  gap: 10px;
  margin-bottom: 14px;
}
.page-faq .faq-step {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}
.page-faq .faq-step__num {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  background: var(--red);
  color: var(--paper);
  border: 2px solid var(--char);
  font-size: 13px;
  font-weight: 700;
}
.page-faq .faq-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 路径条 ---------- */
.page-faq .faq-path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
}
.page-faq .faq-path__node {
  padding: 6px 10px;
  border: 1px solid var(--line-strong);
  color: var(--cool);
}
.page-faq .faq-path__node:last-of-type {
  border-color: var(--yellow);
  color: var(--yellow);
}
.page-faq .faq-path__arrow {
  color: var(--gray);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-qa {
  border-top: 1px solid var(--line);
}
.page-faq .faq-qa:last-child {
  border-bottom: 1px solid var(--line);
}
.page-faq .faq-section--paper .faq-qa {
  border-top-color: rgba(10, 15, 13, 0.2);
}
.page-faq .faq-section--paper .faq-qa:last-child {
  border-bottom-color: rgba(10, 15, 13, 0.2);
}
.page-faq .accordion__btn {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 2px;
  background: none;
  border: 0;
  cursor: pointer;
  color: inherit;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
}
.page-faq .accordion__btn:hover,
.page-faq .accordion__btn:focus-visible {
  color: var(--red-bright);
}
.page-faq .faq-section--paper .accordion__btn:hover,
.page-faq .faq-section--paper .accordion__btn:focus-visible {
  color: var(--red);
}
.page-faq .faq-qa__mark {
  flex: none;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--yellow);
}
.page-faq .faq-section--paper .faq-qa__mark {
  color: var(--yellow-deep);
}
.page-faq .accordion__panel {
  padding: 0 0 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--cool);
}
.page-faq .faq-section--paper .accordion__panel {
  color: var(--ink-700);
}
.page-faq .accordion__panel p {
  margin: 0 0 8px;
}
.page-faq .accordion__panel p:last-child {
  margin-bottom: 0;
}

/* ---------- 下载区块 ---------- */
.page-faq .faq-dl {
  display: grid;
  gap: 20px;
}
@media (min-width: 760px) {
  .page-faq .faq-dl {
    grid-template-columns: 220px minmax(0, 1fr);
    align-items: start;
    gap: 24px;
  }
}
.page-faq .faq-dl__media {
  border: 2px solid var(--char);
  box-shadow: var(--shadow-soft);
  background: var(--ink-700);
  overflow: hidden;
}
.page-faq .faq-dl__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-dl__body {
  min-width: 0;
}
.page-faq .faq-dl__title {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.4vw, 22px);
  line-height: 1.35;
  margin: 12px 0 16px;
}
.page-faq .faq-dl__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cool);
}

/* ---------- 客服准备清单 ---------- */
.page-faq .faq-checklist {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-faq .faq-checklist li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  line-height: 1.7;
}
.page-faq .faq-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 12px;
  height: 12px;
  background: var(--yellow);
  border: 2px solid var(--char);
}
.page-faq .faq-contact-card {
  display: grid;
  gap: 12px;
}
@media (min-width: 760px) {
  .page-faq .faq-contact-card {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.page-faq .faq-contact-card__item {
  border: 2px solid var(--line-strong);
  background: var(--ink-700);
  padding: 16px;
}
.page-faq .faq-contact-card__label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--yellow);
}
.page-faq .faq-contact-card__value {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
}
.page-faq .faq-contact-card__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--cool);
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__item,
  .page-faq .faq-chip,
  .page-faq .faq-rail .rail-link {
    transition: none;
  }
  .page-faq .faq-quick__item:hover,
  .page-faq .faq-quick__item:focus-visible {
    transform: none;
  }
}