.page-faq {
  --faq-radius: 14px;
  --faq-line: rgba(11, 20, 24, .14);
  --faq-line-light: rgba(244, 239, 230, .22);
  --faq-pad: clamp(1rem, 3vw, 1.35rem);
}

/* ---------- 通用栅格 ---------- */
.page-faq .grid-editorial {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.75rem);
}

.page-faq .col-main,
.page-faq .col-note {
  min-width: 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(1.75rem, 5vw, 3.25rem) clamp(2rem, 5vw, 3.5rem);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .faq-kicker {
  margin: 0 0 .85rem;
  font-size: .75rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--jade-deep);
  font-weight: 700;
}

.page-faq .faq-title {
  margin: 0;
  font-size: clamp(1.95rem, 7.2vw, 4.1rem);
  line-height: 1.05;
  letter-spacing: -.025em;
  font-weight: 900;
  color: var(--ink);
  max-width: 20ch;
}

.page-faq .faq-deck {
  margin: clamp(1rem, 2.5vw, 1.6rem) 0 0;
  max-width: 38em;
  font-size: clamp(.95rem, 1.6vw, 1.05rem);
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-facts {
  list-style: none;
  margin: clamp(1.5rem, 4vw, 2.4rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
}

.page-faq .faq-fact {
  border: 2px solid var(--ink);
  border-radius: var(--faq-radius);
  background: var(--paper-2);
  padding: .85rem .9rem 1rem;
  display: grid;
  gap: .2rem;
  box-shadow: 4px 4px 0 var(--ink);
}

.page-faq .faq-fact:nth-child(2) {
  background: var(--sand-soft);
}

.page-faq .faq-fact:nth-child(3) {
  background: var(--white);
}

.page-faq .faq-fact:nth-child(4) {
  background: var(--night);
  border-color: var(--night);
  box-shadow: 4px 4px 0 var(--ink);
}

.page-faq .faq-fact__num {
  font-size: clamp(1.35rem, 4.5vw, 1.9rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--ink);
  letter-spacing: -.02em;
}

.page-faq .faq-fact:nth-child(4) .faq-fact__num {
  color: var(--jade);
}

.page-faq .faq-fact__label {
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--slate);
}

.page-faq .faq-fact:nth-child(4) .faq-fact__label {
  color: rgba(244, 239, 230, .72);
}

/* ---------- 分组索引 ---------- */
.page-faq .faq-rail {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-faq .faq-jump {
  border: 2px solid var(--ink);
  border-radius: var(--faq-radius);
  background: var(--white);
  padding: var(--faq-pad);
}

.page-faq .faq-jump__title {
  margin: 0 0 .75rem;
  font-size: .72rem;
  letter-spacing: .22em;
  color: var(--slate);
  font-weight: 700;
}

.page-faq .faq-jump__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .1rem;
}

.page-faq .faq-jump__link {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  padding: .55rem .1rem;
  border-bottom: var(--hairline);
  color: var(--ink);
  text-decoration: none;
  font-size: .9rem;
  font-weight: 600;
  transition: color .18s var(--ease), padding-left .18s var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  color: var(--jade-deep);
  padding-left: .35rem;
}

.page-faq .faq-jump__no {
  font-size: .74rem;
  color: var(--sand);
  font-weight: 700;
}

.page-faq .faq-jump__note {
  margin: .9rem 0 0;
  font-size: .78rem;
  line-height: 1.65;
  color: var(--slate);
}

/* ---------- 章节 ---------- */
.page-faq .faq-block {
  padding-block: clamp(2.5rem, 7vw, 4.5rem);
  border-top: 3px solid var(--ink);
}

.page-faq .chapter {
  margin-bottom: clamp(1.4rem, 3.5vw, 2.2rem);
}

.page-faq .chapter__title {
  color: var(--ink);
}

.page-faq .chapter__lede {
  max-width: 38em;
  margin-top: .85rem;
  line-height: 1.8;
}

/* ---------- 图片 ---------- */
.page-faq .media {
  margin: 0 0 clamp(1.4rem, 3.5vw, 2rem);
  border: 3px solid var(--ink);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--ink);
}

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

.page-faq .media--wide img {
  aspect-ratio: 2 / 1;
}

.page-faq .media--tall img {
  aspect-ratio: 9 / 10;
}

.page-faq .media__caption {
  display: block;
  padding: .7rem .85rem;
  background: var(--paper-2);
  color: var(--slate);
  font-size: .78rem;
  line-height: 1.6;
  border-top: 2px solid var(--ink);
}

/* ---------- 手风琴 ---------- */
.page-faq .accordion {
  display: grid;
  gap: .7rem;
}

.page-faq .accordion__item {
  border: 2px solid var(--ink);
  border-radius: var(--faq-radius);
  background: var(--white);
  overflow: hidden;
  transition: background .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .accordion__item:hover {
  box-shadow: 4px 4px 0 var(--ink);
}

.page-faq .accordion__heading {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

.page-faq .accordion__trigger {
  display: flex;
  align-items: flex-start;
  gap: .8rem;
  width: 100%;
  margin: 0;
  padding: 1rem 1.05rem;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: .95rem;
  font-weight: 700;
  line-height: 1.6;
  text-align: left;
  cursor: pointer;
  transition: background .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .accordion__trigger::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1.4;
  color: var(--jade-deep);
}

.page-faq .accordion__trigger[aria-expanded="true"] {
  background: var(--paper-2);
  box-shadow: inset 5px 0 0 var(--jade);
}

.page-faq .accordion__trigger[aria-expanded="true"]::after {
  content: "−";
}

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

.page-faq .q-no {
  flex: 0 0 auto;
  padding-top: .18rem;
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--jade-deep);
  font-weight: 700;
}

.page-faq .q-text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .accordion__panel {
  padding: .2rem 1.05rem 1.15rem;
  border-top: 1px solid var(--faq-line);
}

.page-faq .accordion__panel p {
  margin: .8rem 0 0;
  max-width: 38em;
  font-size: .92rem;
  line-height: 1.85;
  color: var(--slate);
}

.page-faq .accordion__panel p:first-child {
  margin-top: .9rem;
}

.page-faq .accordion__panel .num {
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 侧栏说明牌 ---------- */
.page-faq .plate {
  border: 2px solid var(--ink);
  border-radius: var(--faq-radius);
  background: var(--paper-2);
  padding: var(--faq-pad);
}

.page-faq .plate--muted {
  background: var(--white);
}

.page-faq .plate--dark {
  background: var(--night);
  border-color: var(--night);
  color: var(--paper);
}

.page-faq .plate__title {
  margin: 0 0 .7rem;
  font-size: .72rem;
  letter-spacing: .22em;
  color: var(--slate);
  font-weight: 700;
}

.page-faq .plate--dark .plate__title {
  color: rgba(244, 239, 230, .6);
}

.page-faq .plate__value {
  margin: 0 0 .4rem;
  font-size: clamp(1.25rem, 4vw, 1.55rem);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--sand);
}

.page-faq .plate__body {
  margin: .6rem 0 0;
  font-size: .82rem;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .plate--dark .plate__body {
  color: rgba(244, 239, 230, .74);
}

.page-faq .plate__contact-label {
  margin: .7rem 0 .15rem;
  font-size: .72rem;
  letter-spacing: .16em;
  color: rgba(244, 239, 230, .58);
}

.page-faq .plate__contact-value {
  margin: 0;
  font-size: .9rem;
  font-weight: 700;
  color: var(--jade);
  word-break: break-word;
}

.page-faq .plate__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .45rem;
}

.page-faq .plate__links a {
  color: var(--paper);
  font-size: .85rem;
  line-height: 1.6;
  text-decoration: none;
  border-bottom: 1px solid var(--faq-line-light);
  padding-bottom: .4rem;
  display: block;
  transition: color .18s var(--ease);
}

.page-faq .plate__links a:hover,
.page-faq .plate__links a:focus-visible {
  color: var(--sand);
}

.page-faq .bullets {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-faq .bullets li {
  position: relative;
  padding-left: .95rem;
  font-size: .84rem;
  line-height: 1.7;
  color: var(--slate);
}

.page-faq .bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--jade);
}

.page-faq .step-mini {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: .45rem;
  counter-reset: stepmini;
}

.page-faq .step-mini li {
  display: flex;
  align-items: center;
  gap: .55rem;
  font-size: .86rem;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .step-mini__no {
  flex: 0 0 auto;
  width: 1.5rem;
  height: 1.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 2px solid var(--ink);
  background: var(--jade);
  color: var(--ink);
  font-size: .72rem;
  font-weight: 700;
}

.page-faq .plate--dark .step-mini li {
  color: var(--paper);
}

.page-faq .plate--dark .step-mini__no {
  border-color: var(--sand);
  background: transparent;
  color: var(--sand);
}

/* ---------- 复制按钮 ---------- */
.page-faq .copy-btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  margin-top: .9rem;
  padding: .5rem .95rem;
  border: 2px solid var(--ink);
  border-radius: var(--pill);
  background: var(--white);
  color: var(--ink);
  font: inherit;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .04em;
  cursor: pointer;
  transition: background .18s var(--ease), color .18s var(--ease), transform .18s var(--ease);
}

.page-faq .copy-btn:hover {
  background: var(--jade);
  transform: translate(-2px, -2px);
  box-shadow: 3px 3px 0 var(--ink);
}

.page-faq .copy-btn.is-copied {
  background: var(--jade);
  color: var(--ink);
}

.page-faq .plate--dark .copy-btn {
  border-color: var(--sand);
  background: transparent;
  color: var(--sand);
}

.page-faq .plate--dark .copy-btn:hover,
.page-faq .plate--dark .copy-btn.is-copied {
  background: var(--sand);
  color: var(--ink);
}

/* ---------- 深色分区接管 ---------- */
.page-faq .section--ink .chapter__title,
.page-faq .section--ink .chapter__lede,
.page-faq .section--ink .accordion__trigger,
.page-faq .section--ink .accordion__panel p {
  color: var(--paper);
}

.page-faq .section--ink .chapter__num,
.page-faq .section--ink .chapter__eyebrow {
  color: rgba(244, 239, 230, .55);
}

.page-faq .section--ink .q-no,
.page-faq .section--ink .accordion__trigger::after {
  color: var(--jade);
}

.page-faq .section--ink .accordion__item {
  background: rgba(244, 239, 230, .05);
  border-color: var(--faq-line-light);
}

.page-faq .section--ink .accordion__item:hover {
  box-shadow: 4px 4px 0 rgba(244, 239, 230, .28);
}

.page-faq .section--ink .accordion__trigger[aria-expanded="true"] {
  background: rgba(18, 194, 160, .16);
  box-shadow: inset 5px 0 0 var(--jade);
}

.page-faq .section--ink .accordion__panel {
  border-top-color: var(--faq-line-light);
}

.page-faq .section--ink .accordion__panel .num {
  color: var(--sand);
}

.page-faq .section--night .chapter__title,
.page-faq .section--night .chapter__lede,
.page-faq .section--night .accordion__trigger,
.page-faq .section--night .accordion__panel p {
  color: var(--paper);
}

.page-faq .section--night .chapter__num,
.page-faq .section--night .chapter__eyebrow {
  color: rgba(244, 239, 230, .55);
}

.page-faq .section--night .q-no,
.page-faq .section--night .accordion__trigger::after {
  color: var(--jade);
}

.page-faq .section--night .accordion__item {
  background: rgba(244, 239, 230, .05);
  border-color: var(--faq-line-light);
}

.page-faq .section--night .accordion__item:hover {
  box-shadow: 4px 4px 0 rgba(224, 167, 60, .5);
}

.page-faq .section--night .accordion__trigger[aria-expanded="true"] {
  background: rgba(224, 167, 60, .18);
  box-shadow: inset 5px 0 0 var(--sand);
}

.page-faq .section--night .accordion__panel {
  border-top-color: var(--faq-line-light);
}

.page-faq .section--night .accordion__panel .num {
  color: var(--sand);
}

/* ---------- 中屏 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 980px) {
  .page-faq .grid-editorial {
    grid-template-columns: minmax(0, 8fr) minmax(0, 3fr);
    gap: clamp(2rem, 4vw, 4rem);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 7rem;
  }

  .page-faq .accordion__trigger {
    align-items: center;
    padding: 1.1rem 1.25rem;
    font-size: 1rem;
  }

  .page-faq .accordion__panel {
    padding: .2rem 1.25rem 1.3rem;
  }

  .page-faq .accordion__panel p {
    font-size: .95rem;
  }

  .page-faq .faq-title {
    max-width: 18ch;
  }
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .accordion__item,
  .page-faq .accordion__trigger,
  .page-faq .copy-btn,
  .page-faq .faq-jump__link {
    transition: none;
  }

  .page-faq .copy-btn:hover {
    transform: none;
  }
}