.page-faq {
  --faq-gap: clamp(18px, 3vw, 32px);
  --faq-block: clamp(32px, 5vw, 64px);
  background: var(--ink);
  color: var(--text);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3.6vw, 40px) 0 clamp(30px, 5vw, 58px);
  background:
    linear-gradient(155deg, var(--zone-teal) 0%, rgba(10, 20, 46, 0.92) 52%, var(--ink) 100%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(22, 48, 90, 0.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(22, 48, 90, 0.55) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: radial-gradient(125% 95% at 10% 0%, #000 0%, transparent 76%);
  mask-image: radial-gradient(125% 95% at 10% 0%, #000 0%, transparent 76%);
}

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

.page-faq .faq-hero__title {
  margin: 14px 0 18px;
  max-width: 21ch;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(29px, 5.1vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__lead {
  max-width: 60ch;
  margin: 0;
  color: var(--text-2);
  font-size: clamp(15px, 1.35vw, 17px);
  line-height: 1.85;
}

.page-faq .faq-hero__search {
  margin-top: clamp(22px, 3.4vw, 32px);
  max-width: 580px;
}

.page-faq .faq-hero .search__input {
  width: 100%;
  padding: 13px 16px;
  background: rgba(10, 20, 46, 0.78);
  border: 1px solid var(--line);
  border-radius: var(--r);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  transition: border-color 140ms ease, background 140ms ease;
}

.page-faq .faq-hero .search__input::placeholder {
  color: var(--text-2);
}

.page-faq .faq-hero .search__input:hover {
  border-color: var(--line-2);
}

.page-faq .faq-hero .search__input:focus {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
  border-color: var(--cyan);
  background: rgba(10, 20, 46, 0.95);
}

.page-faq .faq-hero__hint {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--text-2);
}

/* ---------- 分类入口 ---------- */
.page-faq .faq-cats {
  padding-top: var(--faq-block);
}

.page-faq .faq-cats__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-2);
}

.page-faq .faq-cat-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq .faq-cat {
  background: var(--ink-2);
}

.page-faq .faq-cat__link {
  display: grid;
  gap: 6px;
  padding: 16px 16px 18px;
  color: inherit;
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: border-color 140ms ease, background 140ms ease, transform 200ms ease;
}

.page-faq .faq-cat:nth-child(2) .faq-cat__link:hover,
.page-faq .faq-cat:nth-child(2) .faq-cat__link:focus-visible { border-left-color: var(--violet); }
.page-faq .faq-cat:nth-child(4) .faq-cat__link:hover,
.page-faq .faq-cat:nth-child(4) .faq-cat__link:focus-visible { border-left-color: var(--orange); }
.page-faq .faq-cat:nth-child(5) .faq-cat__link:hover,
.page-faq .faq-cat:nth-child(5) .faq-cat__link:focus-visible { border-left-color: var(--violet); }

.page-faq .faq-cat__link:hover,
.page-faq .faq-cat__link:focus-visible {
  border-left-color: var(--cyan);
  background: rgba(0, 229, 208, 0.07);
  transform: translateY(-2px);
}

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

.page-faq .faq-cat__idx {
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .faq-cat__name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-cat__count {
  font-size: 12px;
  color: var(--text-2);
}

.page-faq .faq-cat__note {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-2);
}

/* ---------- 主体两列 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  padding-top: var(--faq-block);
  padding-bottom: var(--faq-block);
}

.page-faq .faq-side__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-2);
}

.page-faq .faq-side .index-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-side .index-list__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 2px;
  border-bottom: 1px solid var(--line);
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.6;
  text-decoration: none;
  transition: color 140ms ease, padding-left 160ms ease;
}

.page-faq .faq-side .index-list__link:hover,
.page-faq .faq-side .index-list__link:focus-visible,
.page-faq .faq-side .index-list__link[aria-current] {
  color: var(--cyan);
  padding-left: 6px;
}

.page-faq .faq-side .index-list__link:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -2px;
}

.page-faq .faq-side .index-list__num {
  font-size: 11.5px;
  color: var(--cyan);
  flex: 0 0 auto;
}

/* ---------- 分组标题条 ---------- */
.page-faq .faq-group {
  margin: 0 0 var(--faq-block);
  scroll-margin-top: 140px;
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 11px 16px;
  margin-bottom: 14px;
  border-left: 3px solid var(--cyan);
  background: linear-gradient(90deg, rgba(0, 229, 208, 0.14), rgba(0, 229, 208, 0) 72%);
}

.page-faq .faq-group__idx {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(21px, 2.6vw, 26px);
  letter-spacing: -0.015em;
}

.page-faq .faq-group__note {
  margin: 0;
  font-size: 13px;
  color: var(--text-2);
}

.page-faq .faq-group__lead {
  margin: 0 0 18px;
  max-width: 66ch;
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-group--indigo .faq-group__head {
  border-left-color: var(--violet);
  background: linear-gradient(90deg, rgba(139, 92, 246, 0.18), rgba(139, 92, 246, 0) 72%);
}

.page-faq .faq-group--indigo .faq-group__idx,
.page-faq .faq-group--indigo .faq-q__num {
  color: var(--violet);
}

.page-faq .faq-group--wine .faq-group__head {
  border-left-color: var(--orange);
  background: linear-gradient(90deg, rgba(255, 122, 26, 0.16), rgba(255, 122, 26, 0) 72%);
}

.page-faq .faq-group--wine .faq-group__idx,
.page-faq .faq-group--wine .faq-q__num {
  color: var(--orange);
}

/* ---------- 问答面板 ---------- */
.page-faq .accordion {
  border-top: 1px solid var(--line);
}

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

.page-faq .accordion__trigger {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  padding: 15px 4px;
  background: none;
  border: 0;
  color: var(--text);
  font-family: var(--font-body);
  font-size: clamp(15px, 1.5vw, 16.5px);
  line-height: 1.65;
  text-align: left;
  cursor: pointer;
  transition: color 140ms ease;
}

.page-faq .accordion__trigger:hover {
  color: var(--cyan);
}

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

.page-faq .accordion__trigger[aria-expanded="true"] {
  color: var(--cyan);
}

.page-faq .faq-q__num {
  flex: 0 0 auto;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

.page-faq .faq-q__text {
  flex: 1 1 auto;
}

.page-faq .accordion__panel {
  padding: 0 4px 18px 38px;
  max-width: 70ch;
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .accordion__panel p {
  margin: 0 0 10px;
}

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

.page-faq .accordion__panel a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 208, 0.4);
  transition: border-color 140ms ease;
}

.page-faq .accordion__panel a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 路径示意图 ---------- */
.page-faq .faq-path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 26px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-path__node {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: rgba(10, 20, 46, 0.82);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--text);
  cursor: default;
  transition: border-color 140ms ease, color 140ms ease, background 140ms ease;
}

.page-faq .faq-path__node:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 229, 208, 0.08);
}

.page-faq .faq-path__node + .faq-path__node::before {
  content: "→";
  position: absolute;
  left: -19px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 12px;
  color: var(--line-2);
}

.page-faq .faq-path__node .num {
  color: var(--cyan);
  font-size: 11.5px;
}

.page-faq .faq-path__node[data-note]:hover::after {
  content: attr(data-note);
  position: absolute;
  left: 0;
  top: calc(100% + 8px);
  z-index: 6;
  width: max-content;
  max-width: 230px;
  padding: 8px 10px;
  background: var(--ink-2);
  border: 1px solid var(--cyan);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 12.5px;
  line-height: 1.6;
  white-space: normal;
  pointer-events: none;
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 22px 0 0;
}

.page-faq .figure__media {
  position: relative;
  overflow: hidden;
  background: var(--ink-2);
  border: 1px solid var(--line);
}

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

.page-faq .figure__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-2);
}

/* ---------- 手机版两栏 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  align-items: start;
}

/* ---------- 人工通道 ---------- */
.page-faq .faq-contact {
  margin-top: var(--faq-block);
  padding: clamp(22px, 4vw, 40px);
  scroll-margin-top: 140px;
  background: linear-gradient(140deg, rgba(59, 14, 31, 0.95) 0%, rgba(10, 20, 46, 0.92) 78%);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
}

.page-faq .faq-contact__title {
  margin: 10px 0 14px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.2vw, 34px);
  letter-spacing: -0.02em;
}

.page-faq .faq-contact__lead {
  margin: 0 0 22px;
  max-width: 64ch;
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .faq-contact__list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-contact__k {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-2);
}

.page-faq .faq-contact__v {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin: 0;
  color: var(--text);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.6;
}

.page-faq .faq-contact__note {
  flex: 1 1 100%;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-2);
}

.page-faq .copy-note {
  display: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

.page-faq .copy-note[data-copied="true"] {
  display: inline;
}

.page-faq .faq-contact .copy-btn {
  flex: 0 0 auto;
}

.page-faq .faq-contact__foot {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-2);
}

.page-faq .faq-contact__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 208, 0.4);
  transition: border-color 140ms ease;
}

.page-faq .faq-contact__foot a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-cat-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) 240px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-cat-list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .faq-cat__link {
    min-height: 132px;
    align-content: start;
  }

  .page-faq .faq-body {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-side .sticky-index {
    position: sticky;
    top: calc(var(--head-h) + 16px);
    align-self: start;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) 268px;
  }
}

@media (max-width: 559px) {
  .page-faq .faq-path {
    gap: 10px 0;
    flex-direction: column;
    align-items: flex-start;
  }

  .page-faq .faq-path__node + .faq-path__node::before {
    content: "↓";
    left: 12px;
    top: -14px;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat__link,
  .page-faq .accordion__trigger,
  .page-faq .faq-path__node,
  .page-faq .faq-side .index-list__link,
  .page-faq .faq-hero .search__input {
    transition: none;
  }

  .page-faq .faq-cat__link:hover {
    transform: none;
  }

  .page-faq .faq-side .index-list__link:hover {
    padding-left: 2px;
  }
}