.page-faq {
  --faq-gap: clamp(18px, 2.6vw, 30px);
  --faq-pad: clamp(20px, 2.8vw, 34px);
  --faq-block-gap: clamp(46px, 6vw, 84px);
  background: var(--c-bg);
  color: var(--c-paper);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4vw, 46px) 0 clamp(28px, 5vw, 58px);
  background:
    radial-gradient(118% 88% at 86% -4%, rgba(217, 169, 74, .18), transparent 60%),
    linear-gradient(158deg, var(--c-cabinet) 0%, var(--c-bg) 62%);
}

.page-faq .faq-hero__slice {
  position: absolute;
  z-index: 0;
  top: -20%;
  right: -10%;
  width: min(64%, 620px);
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  background: linear-gradient(214deg, rgba(232, 85, 138, .17), rgba(47, 184, 198, .11) 48%, transparent 74%);
  transform: rotate(calc(var(--angle) * -1));
  pointer-events: none;
}

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

.page-faq .faq-hero .breadcrumb {
  margin: 0 0 18px;
  font-size: var(--fs-meta);
}

.page-faq .faq-hero .eyebrow {
  margin: 0;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 18px;
  font-size: var(--fs-hero);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--c-paper);
  text-shadow: 0 0 44px rgba(217, 169, 74, .22);
}

.page-faq .faq-hero h1::after {
  content: "";
  display: block;
  width: clamp(56px, 9vw, 112px);
  height: 3px;
  margin-top: 20px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--c-gold), var(--c-rose) 55%, var(--c-teal));
}

.page-faq .faq-hero__lead {
  max-width: 64ch;
  margin: 0;
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.82;
  color: var(--c-muted);
}

.page-faq .faq-hero__tags {
  margin: 24px 0 0;
}

/* ---------- 分栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  padding-top: clamp(30px, 4vw, 54px);
  padding-bottom: clamp(56px, 9vw, 120px);
}

.page-faq .faq-main {
  display: grid;
  gap: var(--faq-block-gap);
  min-width: 0;
}

.page-faq .faq-block {
  min-width: 0;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-rail {
  min-width: 0;
}

.page-faq .section-head {
  max-width: 66ch;
}

.page-faq .section-head__title {
  margin: 8px 0 0;
  font-size: var(--fs-h2);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.012em;
  color: var(--c-paper);
}

.page-faq .section-head__desc {
  margin: 12px 0 0;
  font-size: var(--fs-body);
  line-height: 1.78;
  color: var(--c-muted);
}

/* ---------- 章节索引 ---------- */
.page-faq .faq-toc {
  padding: 16px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--c-line);
  background: linear-gradient(180deg, rgba(42, 26, 71, .82), rgba(11, 6, 20, .74));
}

.page-faq .faq-toc__title {
  margin: 0 0 12px;
  font-size: var(--fs-cap);
  letter-spacing: .18em;
  color: var(--c-muted);
}

.page-faq .faq-toc .rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-toc .rail-link {
  display: block;
  padding: 7px 11px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color .24s ease, border-color .24s ease, background .24s ease;
}

.page-faq .faq-toc .rail-link:hover,
.page-faq .faq-toc .rail-link:focus-visible {
  color: var(--c-gold-hi);
  border-color: rgba(243, 218, 154, .42);
}

.page-faq .faq-toc .rail-link.is-active,
.page-faq .faq-toc .rail-link[aria-current="true"] {
  color: var(--c-ink);
  background: var(--c-gold);
  border-color: var(--c-gold-hi);
}

@media (max-width: 1039px) {
  .page-faq .faq-toc .rail-list {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 4px;
  }
  .page-faq .faq-toc .rail-list li {
    flex: 0 0 auto;
  }
}

/* ---------- 三条检索路径 ---------- */
.page-faq .paths {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-faq .paths__cards {
  display: grid;
  gap: 18px;
}

.page-faq .path-card {
  position: relative;
  padding: var(--faq-pad);
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-line);
  background: linear-gradient(180deg, var(--c-cabinet) 0%, var(--c-cabinet-2) 100%);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.page-faq .path-card::after {
  content: "";
  position: absolute;
  right: -34%;
  bottom: -56%;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217, 169, 74, .16), transparent 68%);
  pointer-events: none;
}

.page-faq .path-card__no {
  display: block;
  font-size: clamp(34px, 4vw, 46px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--c-gold);
}

.page-faq .path-card__title {
  margin: 14px 0 8px;
  font-size: var(--fs-card);
  font-weight: 700;
  color: var(--c-paper);
}

.page-faq .path-card__text {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-muted);
}

.page-faq .data-line {
  margin: 0 0 18px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: 1px dashed var(--c-line);
  background: rgba(11, 6, 20, .58);
  font-size: 13px;
  line-height: 1.95;
  color: var(--c-paper);
  overflow-wrap: anywhere;
}

.page-faq .path-card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(243, 218, 154, .38);
  color: var(--c-gold-hi);
  font-size: var(--fs-meta);
  text-decoration: none;
  transition: color .24s ease, border-color .24s ease;
}

.page-faq .path-card__link::after {
  content: "→";
}

.page-faq .path-card__link:hover,
.page-faq .path-card__link:focus-visible {
  color: var(--c-paper);
  border-bottom-color: var(--c-gold);
}

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

.page-faq .paths__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-line);
}

.page-faq .paths__cap {
  margin: 10px 0 0;
  font-size: var(--fs-cap);
  line-height: 1.7;
  color: var(--c-muted);
}

.page-faq .paths__note {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  font-size: var(--fs-meta);
  line-height: 1.85;
  color: var(--c-muted);
}

.page-faq .paths__note a {
  color: var(--c-teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 184, 198, .38);
}

.page-faq .paths__note a:hover {
  color: var(--c-paper);
}

@media (min-width: 700px) {
  .page-faq .paths__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .paths__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .paths__cards > :nth-child(2) {
    margin-top: 42px;
  }
  .page-faq .paths__cards > :nth-child(3) {
    margin-top: 16px;
  }
  .page-faq .paths__figure {
    max-width: 420px;
    margin-left: auto;
  }
}

/* ---------- 区间阅读口径 ---------- */
.page-faq .range-note {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-faq .range-note__prose p {
  color: var(--c-muted);
}

.page-faq .range-table {
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  background: rgba(11, 6, 20, .52);
  overflow: hidden;
}

.page-faq .range-table__head {
  display: grid;
  grid-template-columns: .9fr 1.3fr 1fr;
  gap: 10px;
  padding: 12px 16px;
  font-size: var(--fs-cap);
  letter-spacing: .06em;
  color: var(--c-muted);
  border-bottom: 1px solid var(--c-line);
  background: rgba(42, 26, 71, .58);
}

.page-faq .range-samples {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .range-samples__row {
  display: grid;
  grid-template-columns: .9fr 1.3fr 1fr;
  gap: 10px;
  padding: 14px 16px;
  font-size: var(--fs-meta);
  line-height: 1.6;
  border-bottom: 1px solid rgba(78, 62, 112, .45);
}

.page-faq .range-samples__row:last-child {
  border-bottom: 0;
}

.page-faq .range-samples__name {
  color: var(--c-paper);
}

.page-faq .range-samples__val {
  color: var(--c-teal);
}

.page-faq .range-samples__size {
  color: var(--c-gold);
}

@media (min-width: 920px) {
  .page-faq .range-note {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (max-width: 560px) {
  .page-faq .range-table__head {
    display: none;
  }
  .page-faq .range-samples__row {
    grid-template-columns: 1fr 1fr;
    row-gap: 6px;
  }
  .page-faq .range-samples__name {
    grid-column: 1 / -1;
    font-weight: 600;
  }
}

/* ---------- 提交字段 ---------- */
.page-faq .field-list {
  list-style: none;
  margin: clamp(20px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .field-list__item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: var(--faq-pad);
  border-radius: var(--radius-md);
  border: 1px solid var(--c-line);
  background: linear-gradient(96deg, rgba(42, 26, 71, .88), rgba(11, 6, 20, .72));
}

.page-faq .field-list__no {
  font-size: 22px;
  line-height: 1.3;
  letter-spacing: .02em;
  color: var(--c-gold);
}

.page-faq .field-list__title {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-paper);
}

.page-faq .field-list__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

@media (min-width: 760px) {
  .page-faq .field-list__item:nth-child(even) {
    margin-left: 36px;
  }
}

/* ---------- 主题格式 ---------- */
.page-faq .subject-block {
  margin-top: clamp(20px, 3vw, 34px);
  padding: var(--faq-pad);
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-line);
  background: rgba(42, 26, 71, .6);
}

.page-faq .subject-block__label {
  margin: 0;
  font-size: var(--fs-cap);
  letter-spacing: .18em;
  color: var(--c-muted);
}

.page-faq .subject-block__code {
  margin: 10px 0 20px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px dashed rgba(217, 169, 74, .5);
  background: rgba(11, 6, 20, .7);
  font-size: clamp(15px, 1.6vw, 19px);
  line-height: 1.6;
  color: var(--c-gold-hi);
  overflow-wrap: anywhere;
}

.page-faq .subject-block__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .subject-block__list code {
  display: block;
  padding: 11px 14px;
  border-radius: var(--radius-md);
  border-left: 2px solid var(--c-teal);
  background: rgba(11, 6, 20, .56);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-paper);
  overflow-wrap: anywhere;
}

.page-faq .subject-block__note {
  margin: 0 0 10px;
  font-size: var(--fs-meta);
  line-height: 1.8;
  color: var(--c-muted);
}

.page-faq .subject-block__note:last-child {
  margin-bottom: 0;
}

.page-faq .subject-block__mail {
  color: var(--c-gold);
  font-family: var(--mono);
  font-size: .95em;
  overflow-wrap: anywhere;
}

/* ---------- 按月归档流程 ---------- */
.page-faq .flow-banner {
  margin: clamp(20px, 3vw, 34px) 0 0;
}

.page-faq .flow-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-line);
}

.page-faq .flow {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-faq .flow__step {
  position: relative;
  padding-top: 28px;
}

.page-faq .flow__step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--c-gold) 0%, rgba(217, 169, 74, .18) 72%, transparent 100%);
}

.page-faq .flow__step::after {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--c-gold);
  box-shadow: 0 0 0 4px rgba(217, 169, 74, .16);
}

.page-faq .flow__no {
  display: block;
  margin-bottom: 6px;
  font-size: var(--fs-meta);
  letter-spacing: .12em;
  color: var(--c-gold);
}

.page-faq .flow__title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-paper);
}

.page-faq .flow__step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-muted);
}

@media (max-width: 859px) {
  .page-faq .flow__step {
    padding-top: 6px;
    padding-left: 22px;
  }
  .page-faq .flow__step::before {
    top: 0;
    bottom: 0;
    right: auto;
    width: 2px;
    height: auto;
    background: linear-gradient(180deg, var(--c-gold), rgba(217, 169, 74, .08));
  }
  .page-faq .flow__step::after {
    top: 8px;
    left: -5px;
  }
}

@media (min-width: 860px) {
  .page-faq .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }
}

/* ---------- 回复时限 ---------- */
.page-faq .reply {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-faq .reply__figure {
  padding: var(--faq-pad);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(217, 169, 74, .38);
  background: linear-gradient(160deg, rgba(217, 169, 74, .16), rgba(42, 26, 71, .72));
  text-align: center;
}

.page-faq .reply__num {
  margin: 0;
  font-size: var(--fs-num);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--c-gold-hi);
  text-shadow: 0 0 34px rgba(243, 218, 154, .3);
}

.page-faq .reply__unit {
  margin: 10px 0 0;
  font-size: var(--fs-card);
  font-weight: 700;
  color: var(--c-paper);
}

.page-faq .reply__note {
  margin: 6px 0 0;
  font-size: var(--fs-cap);
  color: var(--c-muted);
}

.page-faq .reply__body p {
  color: var(--c-muted);
}

@media (min-width: 820px) {
  .page-faq .reply {
    grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 常见疑问 ---------- */
.page-faq .qa {
  margin-top: clamp(20px, 3vw, 34px);
}

.page-faq .qa__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(78, 62, 112, .6);
}

.page-faq .qa-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 15px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--c-line);
  background: rgba(11, 6, 20, .56);
  color: var(--c-muted);
  font-family: inherit;
  font-size: var(--fs-meta);
  line-height: 1.4;
  cursor: pointer;
  transition: color .24s ease, border-color .24s ease, background .24s ease;
}

.page-faq .qa-chip:hover,
.page-faq .qa-chip:focus-visible {
  color: var(--c-gold-hi);
  border-color: var(--c-gold);
}

.page-faq .qa-chip[aria-pressed="true"] {
  background: var(--c-gold);
  border-color: var(--c-gold-hi);
  color: var(--c-ink);
}

.page-faq .qa-chip__n {
  font-size: .85em;
  opacity: .82;
}

.page-faq .qa__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .qa__item {
  border-bottom: 1px solid rgba(78, 62, 112, .5);
}

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

.page-faq .qa__trigger {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  padding: 18px 4px;
  border: 0;
  background: none;
  text-align: left;
  color: var(--c-paper);
  font-family: inherit;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.65;
  cursor: pointer;
}

.page-faq .qa__no {
  flex: 0 0 auto;
  padding-top: 3px;
  font-size: var(--fs-meta);
  letter-spacing: .04em;
  color: var(--c-gold);
}

.page-faq .qa__text {
  flex: 1 1 auto;
  transition: color .24s ease;
}

.page-faq .qa__trigger:hover .qa__text,
.page-faq .qa__trigger:focus-visible .qa__text {
  color: var(--c-gold-hi);
}

.page-faq .qa__trigger .caret {
  flex: 0 0 auto;
  width: 11px;
  height: 11px;
  margin: 9px 0 0 8px;
  border-right: 2px solid var(--c-muted);
  border-bottom: 2px solid var(--c-muted);
  transform: rotate(45deg);
  transition: transform .26s ease, border-color .26s ease;
}

.page-faq .qa__trigger[aria-expanded="true"] .caret {
  margin-top: 13px;
  border-color: var(--c-gold);
  transform: rotate(225deg);
}

.page-faq .qa__panel {
  padding: 0 4px 20px;
}

.page-faq .qa__panel p {
  margin: 0;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-muted);
}

.page-faq .qa__panel .qa__jump {
  margin: 14px 0 0;
  font-size: var(--fs-meta);
  color: var(--c-muted);
}

.page-faq .qa__jump a {
  color: var(--c-teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 184, 198, .42);
}

.page-faq .qa__jump a:hover,
.page-faq .qa__jump a:focus-visible {
  color: var(--c-paper);
}

/* ---------- 术语表 ---------- */
.page-faq .faq-glossary {
  position: relative;
  overflow: hidden;
  padding: var(--faq-pad);
  border-radius: var(--radius-lg);
  background: var(--c-paper-2);
  color: var(--c-ink);
}

.page-faq .faq-glossary::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-gold), var(--c-rose) 52%, var(--c-teal));
}

.page-faq .faq-glossary .section-head__title {
  color: var(--c-ink);
}

.page-faq .faq-glossary .section-head__desc {
  color: #574a75;
}

.page-faq .faq-glossary .faq-glossary__eyebrow {
  color: #8a6a1f;
}

.page-faq .glossary {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  display: grid;
}

.page-faq .glossary__row {
  padding: 16px 0;
  border-top: 1px solid rgba(42, 26, 71, .22);
}

.page-faq .glossary__term {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--c-ink);
}

.page-faq .glossary__def {
  margin: 7px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: #4a3d68;
}

@media (min-width: 760px) {
  .page-faq .glossary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 42px;
  }
}

/* ---------- 桌面分栏 ---------- */
@media (min-width: 1040px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 232px;
    align-items: start;
  }
  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-chip,
  .page-faq .qa__text,
  .page-faq .qa__trigger .caret,
  .page-faq .path-card__link,
  .page-faq .faq-toc .rail-link {
    transition: none;
  }
}