.page-faq {
  --faq-line: rgba(14, 124, 107, 0.22);
  --faq-hair: rgba(78, 93, 104, 0.18);
  --faq-cut: 16px;
  background: var(--paper);
  color: var(--body-text);
  overflow-x: hidden;
}

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

.page-faq a {
  color: inherit;
}

/* ---------- 首屏 ---------- */

.faq-hero {
  position: relative;
  background: var(--navy);
  color: var(--paper);
  padding: clamp(84px, 13vw, 136px) 0 clamp(48px, 7vw, 78px);
  overflow: hidden;
}

.faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 0 auto;
  width: min(640px, 78vw);
  background: linear-gradient(152deg, rgba(14, 124, 107, 0.58) 0%, rgba(111, 91, 232, 0.20) 58%, rgba(12, 26, 43, 0) 100%);
  clip-path: polygon(34% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.faq-hero::after {
  content: "";
  position: absolute;
  left: clamp(18px, 4vw, 56px);
  right: clamp(18px, 4vw, 56px);
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(185, 132, 58, 0.7), rgba(185, 132, 58, 0.05));
}

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

.faq-hero .jb-crumb {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.faq-hero__eyebrow {
  color: var(--copper-lt);
}

.faq-hero__title {
  margin: 14px 0 0;
  font-size: clamp(34px, 5.6vw, 72px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: 0.03em;
  color: #ffffff;
}

.faq-hero__lead {
  max-width: 62ch;
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.8;
  color: rgba(242, 233, 219, 0.86);
}

.faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(26px, 3.4vw, 38px);
}

.faq-hero__tag {
  display: inline-flex;
  align-items: center;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  padding: 10px 15px;
  text-decoration: none;
  color: var(--sand);
  border: 1px solid rgba(227, 181, 99, 0.45);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.faq-hero__tag:hover,
.faq-hero__tag:focus-visible {
  background: var(--copper);
  border-color: var(--copper);
  color: var(--navy);
}

.faq-hero__tag:focus-visible {
  outline: 2px solid var(--copper-lt);
  outline-offset: 3px;
}

.faq-hero__note {
  position: absolute;
  right: clamp(10px, 2.4vw, 30px);
  bottom: clamp(34px, 5vw, 66px);
  color: rgba(227, 181, 99, 0.7);
  z-index: 2;
}

/* ---------- 主体双栏 ---------- */

.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 54px);
  padding: clamp(40px, 6vw, 84px) 0 clamp(44px, 6vw, 88px);
}

.faq-main {
  min-width: 0;
}

/* 索引 */

.faq-index {
  min-width: 0;
}

.faq-index__title {
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--graphite);
}

.faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--faq-line);
}

.faq-index__list li + li {
  margin-top: 2px;
}

.faq-index__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  margin-left: -1px;
  padding: 12px 10px 12px 16px;
  border-left: 2px solid transparent;
  font-size: 15px;
  line-height: 1.45;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.faq-index__link:hover {
  border-left-color: var(--green);
  background: rgba(99, 199, 178, 0.12);
  color: var(--green);
}

.faq-index__link:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 2px;
}

.faq-index__num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--copper);
}

.faq-index__foot {
  margin: 20px 0 0;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--graphite);
}

.faq-index__foot a {
  color: var(--green);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 分组 ---------- */

.faq-group {
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.faq-group + .faq-group {
  margin-top: clamp(40px, 5vw, 70px);
}

.faq-group__head {
  position: relative;
  background: var(--sand);
  padding: clamp(20px, 2.6vw, 30px) clamp(18px, 2.6vw, 32px);
  margin-bottom: clamp(18px, 2.4vw, 26px);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.faq-group__code {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--copper);
}

.faq-group__title {
  margin: 6px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--copper);
  font-size: clamp(21px, 2.4vw, 29px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.faq-group__hint {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--graphite);
}

.faq-group__split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
}

.faq-group__media {
  min-width: 0;
}

.faq-group__figure {
  margin: 0;
}

/* ---------- 问答条目 ---------- */

.faq-group__list {
  min-width: 0;
}

.faq-item {
  position: relative;
  background: #ffffff;
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--green-lt);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, 0 100%);
  transition: border-left-color 0.22s var(--ease), background-color 0.22s var(--ease);
}

.faq-item + .faq-item {
  margin-top: 10px;
}

.faq-item[open] {
  border-left-color: var(--copper);
  background: var(--paper);
}

.faq-item > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 16px 20px 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
}

.faq-item > summary::-webkit-details-marker {
  display: none;
}

.faq-item > summary::marker {
  content: "";
}

.faq-item > summary:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: -3px;
}

.faq-item__num {
  font-size: 12px;
  letter-spacing: 0.05em;
  line-height: 1.9;
  color: var(--copper);
}

.faq-item__q {
  min-width: 0;
}

.faq-item__sign {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--copper);
  clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 7px, 100% 100%, 0 100%);
  flex: none;
}

.faq-item__sign::before,
.faq-item__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--copper);
  transform: translate(-50%, -50%);
}

.faq-item__sign::before {
  width: 10px;
  height: 1.5px;
}

.faq-item__sign::after {
  width: 1.5px;
  height: 10px;
  transition: transform 0.22s var(--ease);
}

.faq-item[open] .faq-item__sign::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.faq-item__body {
  padding: 4px 24px 20px 56px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--graphite);
}

.faq-item__body p {
  margin: 0 0 12px;
  max-width: 66ch;
}

.faq-item[open] .faq-item__body {
  animation: faq-reveal 0.3s var(--ease) both;
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    clip-path: polygon(0 0, 0 0, 0 100%, 0 100%);
  }
  to {
    opacity: 1;
    clip-path: polygon(0 0, 100% 0, calc(100% - 26px) 100%, 0 100%);
  }
}

.faq-item__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid rgba(14, 124, 107, 0.4);
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.faq-item__link::after {
  content: "›";
  font-size: 15px;
  line-height: 1;
  transform: translateY(-1px);
}

.faq-item__link:hover {
  color: var(--violet);
  border-color: var(--violet);
}

.faq-item__link:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 2px;
}

.faq-clause {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.88em;
  letter-spacing: 0.04em;
  padding: 1px 6px;
  background: rgba(227, 181, 99, 0.32);
  color: #7a5220;
  white-space: nowrap;
}

/* ---------- 选择建议 ---------- */

.faq-paths {
  background: var(--sand);
  padding: clamp(46px, 6.5vw, 92px) 0 clamp(50px, 6.5vw, 96px);
  border-top: 1px solid rgba(185, 132, 58, 0.3);
}

.faq-paths__eyebrow {
  color: var(--copper);
}

.faq-paths__title {
  margin: 12px 0 0;
  font-size: clamp(26px, 3.6vw, 44px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.faq-paths__lead {
  max-width: 58ch;
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--graphite);
}

.faq-paths__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.2vw, 24px);
  margin-top: clamp(26px, 3.4vw, 40px);
}

.faq-path {
  position: relative;
  padding: clamp(24px, 3vw, 36px);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.faq-path--a {
  background: var(--navy);
  color: var(--paper);
}

.faq-path--b {
  background: var(--green);
  color: #ffffff;
}

.faq-path__mark {
  display: block;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--copper-lt);
}

.faq-path--b .faq-path__mark {
  color: rgba(255, 255, 255, 0.8);
}

.faq-path__heading {
  margin: 14px 0 0;
  font-size: clamp(19px, 2vw, 23px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.01em;
}

.faq-path__text {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(242, 233, 219, 0.84);
}

.faq-path--b .faq-path__text {
  color: rgba(255, 255, 255, 0.86);
}

.faq-path__link {
  display: inline-block;
  margin-top: 20px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--copper-lt);
  border-bottom: 1px solid rgba(227, 181, 99, 0.5);
  padding-bottom: 3px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.faq-path--b .faq-path__link {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.55);
}

.faq-path__link:hover {
  color: var(--violet);
  border-color: var(--violet);
}

.faq-path__link:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
}

.faq-paths__figure {
  margin: clamp(26px, 3.4vw, 42px) 0 0;
}

/* ---------- 联系对接 ---------- */

.faq-contact {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(46px, 6.5vw, 88px) 0 clamp(50px, 6.5vw, 92px);
}

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

.faq-contact__intro {
  min-width: 0;
}

.faq-contact__eyebrow {
  color: var(--copper-lt);
}

.faq-contact__title {
  margin: 12px 0 0;
  font-size: clamp(23px, 3vw, 36px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: 0.02em;
  color: #ffffff;
}

.faq-contact__text {
  max-width: 58ch;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(242, 233, 219, 0.82);
}

.faq-contact__list {
  margin: 0;
  border-top: 1px solid rgba(227, 181, 99, 0.35);
}

.faq-contact__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(99, 199, 178, 0.2);
}

.faq-contact__row dt {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--copper-lt);
}

.faq-contact__row dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: rgba(251, 247, 240, 0.92);
  word-break: break-word;
}

.faq-contact__row dd a {
  color: #ffffff;
  text-decoration: none;
  border-bottom: 1px solid rgba(227, 181, 99, 0.5);
  padding-bottom: 1px;
}

.faq-contact__row dd a:hover {
  color: var(--copper-lt);
}

.faq-contact__row dd a:focus-visible {
  outline: 2px solid var(--copper-lt);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .faq-contact__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

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

@media (min-width: 900px) {
  .faq-group__split {
    grid-template-columns: minmax(0, 1fr) 292px;
    align-items: start;
  }

  .faq-contact__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .faq-layout {
    grid-template-columns: 244px minmax(0, 1fr);
  }

  .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    align-self: start;
  }
}

@media (max-width: 859px) {
  .faq-hero__note {
    display: none;
  }
}

@media (max-width: 480px) {
  .faq-item > summary {
    padding: 14px 14px 14px 14px;
    font-size: 15.5px;
    gap: 10px;
  }

  .faq-item__body {
    padding: 2px 16px 18px 16px;
  }

  .faq-item {
    --faq-cut: 12px;
  }

  .faq-group__head {
    clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .faq-item[open] .faq-item__body {
    animation: none;
  }

  .faq-item,
  .faq-item__sign::after,
  .faq-hero__tag,
  .faq-index__link,
  .faq-item__link,
  .faq-path__link {
    transition: none;
  }
}