.page-faq {
  background: var(--ink-950);
  color: var(--white);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: calc(var(--header-h) + 52px) 0 60px;
  background:
    radial-gradient(1100px 520px at 12% -12%, rgba(21, 94, 134, 0.62), transparent 62%),
    radial-gradient(760px 420px at 94% 4%, rgba(213, 43, 30, 0.20), transparent 60%),
    linear-gradient(180deg, var(--ink-950) 0%, var(--ink-900) 100%);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(169, 194, 214, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(169, 194, 214, 0.08) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 78%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 78%);
  pointer-events: none;
}

.page-faq .faq-hero__inner,
.page-faq .faq-hero__visual {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 26px;
}

.page-faq .breadcrumb__item {
  color: var(--ice);
  font-size: 14px;
  text-decoration: none;
}

.page-faq a.breadcrumb__item:hover {
  color: var(--white);
}

.page-faq .breadcrumb__sep {
  color: var(--ink-600);
  font-size: 14px;
}

.page-faq .faq-hero__eyebrow {
  color: var(--gold);
  margin: 0;
}

.page-faq .faq-hero__title {
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.18;
  margin: 16px 0 0;
  max-width: 20ch;
  color: var(--white);
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.85;
  color: var(--ice);
}

.page-faq .faq-hero__visual {
  margin-top: 40px;
}

.page-faq .faq-hero__visual .media__frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .media__caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--ice);
}

/* ---------- 水泥灰工具书区 ---------- */
.page-faq .faq-board {
  position: relative;
  background: var(--cement);
  color: var(--graphite);
  padding-top: 78px;
}

.page-faq .faq-board::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--red) 0%, var(--gold) 46%, var(--ink-800) 100%);
}

.page-faq .faq-board .eyebrow {
  color: var(--red-dark);
}

.page-faq .faq-board .section__title {
  font-family: var(--font-serif);
  color: var(--ink-950);
  letter-spacing: 0.02em;
}

.page-faq .faq-board .section__lead {
  color: rgba(18, 24, 29, 0.7);
}

.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 38px;
}

.page-faq .faq-filter .filter-bar__btn {
  appearance: none;
  border: 1px solid rgba(18, 24, 29, 0.16);
  background: rgba(255, 255, 255, 0.74);
  color: var(--graphite);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.2;
  border-radius: 999px;
  padding: 11px 22px;
  cursor: pointer;
  transition: transform 0.18s ease, background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-filter .filter-bar__btn:hover {
  transform: translateY(-2px);
  border-color: var(--ink-600);
  color: var(--ink-800);
}

.page-faq .faq-filter .filter-bar__btn.is-active {
  background: var(--ink-800);
  border-color: var(--ink-800);
  color: var(--white);
}

/* ---------- 场景块 ---------- */
.page-faq .faq-scene-list {
  display: grid;
  gap: 6px;
  padding-bottom: 34px;
}

.page-faq .faq-scene {
  padding: 34px 0 10px;
  border-top: 1px solid rgba(18, 24, 29, 0.14);
}

.page-faq .faq-scene:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-faq .faq-scene__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 16px;
  align-items: baseline;
}

.page-faq .faq-scene__index {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--red);
  padding-top: 8px;
}

.page-faq .faq-scene__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: 0.02em;
  color: var(--ink-950);
}

.page-faq .faq-scene__desc {
  grid-column: 2;
  margin: 6px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(18, 24, 29, 0.66);
}

.page-faq .faq-chart-media {
  margin: 24px 0 4px;
  max-width: 700px;
}

.page-faq .faq-chart-media .media__frame {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(18, 24, 29, 0.14);
}

.page-faq .faq-chart-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-chart-media .media__caption {
  color: rgba(18, 24, 29, 0.6);
}

/* ---------- 问题条目 ---------- */
.page-faq .faq-item {
  display: grid;
  gap: 14px;
  padding: 26px 0;
  border-top: 1px dashed rgba(18, 24, 29, 0.18);
}

.page-faq .faq-scene__items > .faq-item:first-child {
  border-top: 0;
  padding-top: 20px;
}

.page-faq .faq-item__ask h3 {
  position: relative;
  margin: 0 0 8px;
  padding-left: 22px;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-950);
}

.page-faq .faq-item__ask h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--red);
}

.page-faq .faq-item__ask p {
  margin: 0;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(18, 24, 29, 0.64);
}

.page-faq .faq-item__fix {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(18, 24, 29, 0.1);
  border-radius: var(--radius-md);
  padding: 18px 20px 20px;
}

.page-faq .faq-item__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-600);
}

.page-faq .faq-steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 34px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-faq .faq-steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--ink-800);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 10.5px;
  display: grid;
  place-items: center;
}

/* ---------- 求助区 ---------- */
.page-faq .faq-help {
  position: relative;
  background:
    radial-gradient(900px 420px at 88% -6%, rgba(213, 43, 30, 0.22), transparent 62%),
    linear-gradient(180deg, var(--ink-950) 0%, var(--ink-900) 100%);
  color: var(--white);
}

.page-faq .faq-help .eyebrow {
  color: var(--gold);
}

.page-faq .faq-help .section__title {
  font-family: var(--font-serif);
  color: var(--white);
  letter-spacing: 0.02em;
}

.page-faq .faq-help .section__lead {
  color: var(--ice);
}

.page-faq .faq-channels {
  display: grid;
  gap: 18px;
  margin-top: 30px;
}

.page-faq .faq-channel {
  background: rgba(11, 60, 93, 0.55);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px 22px 26px;
  box-shadow: var(--shadow-card);
}

.page-faq .faq-channel__title {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 20px;
  color: var(--white);
}

.page-faq .faq-channel p {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ice);
}

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

.page-faq .faq-channel a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 183, 5, 0.45);
  word-break: break-all;
}

.page-faq .faq-channel a:hover {
  color: var(--white);
  border-color: var(--white);
}

.page-faq .faq-links__heading {
  margin: 48px 0 16px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 20px;
  color: var(--white);
}

.page-faq .faq-links {
  display: grid;
  gap: 14px;
  padding-bottom: 20px;
}

.page-faq .faq-links__item {
  display: block;
  text-decoration: none;
  background: rgba(8, 23, 38, 0.66);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-links__item:hover {
  transform: translateY(-2px);
  border-color: var(--gold);
}

.page-faq .faq-links__label {
  display: block;
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: 500;
  color: var(--white);
}

.page-faq .faq-links__desc {
  display: block;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ice);
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-item {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: 44px;
    align-items: start;
    padding: 30px 0;
  }

  .page-faq .faq-item__fix {
    padding: 22px 26px 24px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-filter .filter-bar__btn,
  .page-faq .faq-links__item {
    transition: none;
  }

  .page-faq .faq-filter .filter-bar__btn:hover,
  .page-faq .faq-links__item:hover {
    transform: none;
  }
}