.page-faq {
  background: var(--c-sea);
  color: var(--c-light);
  font-family: var(--font-sans);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumbs {
  padding-top: clamp(16px, 3vw, 26px);
}

.page-faq .faq-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--c-mist);
}

.page-faq .faq-crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--c-tide);
}

.page-faq .faq-crumbs a {
  color: var(--c-mist);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

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

.page-faq .faq-crumbs [aria-current="page"] {
  color: var(--c-light);
}

/* ---------- 共用小标题 ---------- */
.page-faq .faq-eyebrow {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--c-gold);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(38px, 8vw, 96px) 0 clamp(46px, 8vw, 104px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(120% 90% at 10% 0%, rgba(30, 58, 99, .95) 0%, rgba(11, 30, 58, 0) 62%),
    linear-gradient(115deg, var(--c-harbor) 0%, var(--c-sea) 52%, var(--c-deepest) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 76%, 0 100%);
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .2;
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 5vw, 44px);
  align-items: start;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1fr) 76px;
    gap: clamp(32px, 4vw, 60px);
  }
}

.page-faq .faq-hero__title {
  margin: 0 0 20px;
  font-size: clamp(40px, 11vw, 88px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -.01em;
  color: var(--c-light);
}

.page-faq .faq-hero__lede {
  max-width: 46ch;
  margin: 0 0 clamp(26px, 4vw, 38px);
  font-size: clamp(16px, 2.2vw, 18px);
  line-height: 1.78;
  color: rgba(234, 240, 248, .86);
}

.page-faq .faq-hero__lede a {
  color: var(--c-coral);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 74, .45);
  transition: border-color var(--t-fast) var(--ease);
}

.page-faq .faq-hero__lede a:hover,
.page-faq .faq-hero__lede a:focus-visible {
  border-bottom-color: var(--c-coral);
}

.page-faq .faq-hero__note {
  margin: 0;
  justify-self: start;
  padding-top: 12px;
  border-top: 1px solid rgba(46, 196, 182, .35);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--c-jade);
}

@media (min-width: 900px) {
  .page-faq .faq-hero__note {
    writing-mode: vertical-rl;
    justify-self: end;
    min-height: 168px;
    padding-top: 0;
    padding-left: 12px;
    border-top: 0;
    border-left: 1px solid rgba(46, 196, 182, .35);
  }
}

/* ---------- 搜索框 ---------- */
.page-faq .faq-search {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 660px;
  padding: 8px 12px 8px 18px;
  border: 1.5px solid var(--c-tide);
  border-radius: var(--r-lg);
  background: rgba(6, 19, 42, .74);
  transition: border-color var(--t-mid) var(--ease), box-shadow var(--t-mid) var(--ease);
}

.page-faq .faq-search:focus-within {
  border-color: var(--c-jade);
  box-shadow: 0 0 0 4px rgba(46, 196, 182, .16);
}

.page-faq .faq-search__icon {
  flex: none;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  color: var(--c-jade);
}

.page-faq .faq-search__icon svg {
  width: 100%;
  height: 100%;
}

.page-faq .faq-search__input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 13px 2px;
  border: 0;
  background: transparent;
  color: var(--c-light);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.4;
}

.page-faq .faq-search__input::placeholder {
  color: var(--c-mist);
}

.page-faq .faq-search__input:focus {
  outline: none;
}

.page-faq .faq-search__input::-webkit-search-cancel-button {
  -webkit-appearance: none;
}

.page-faq .faq-search__key {
  flex: none;
  padding: 4px 10px;
  border: 1px solid var(--c-tide);
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-mist);
}

@media (max-width: 520px) {
  .page-faq .faq-search__key {
    display: none;
  }
}

.page-faq .faq-search__hint {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-mist);
}

.page-faq .faq-search__try {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--c-mist);
}

.page-faq .faq-search__try a {
  color: var(--c-jade);
  text-decoration: none;
  border-bottom: 1px dashed rgba(46, 196, 182, .5);
}

.page-faq .faq-search__try a:hover,
.page-faq .faq-search__try a:focus-visible {
  color: var(--c-light);
  border-bottom-color: var(--c-light);
}

.page-faq .faq-search__try span {
  margin: 0 8px;
  color: var(--c-tide);
}

/* ---------- 模块标题组 ---------- */
.page-faq .faq-head {
  max-width: 720px;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-faq .faq-head h2 {
  margin: 0 0 14px;
  font-size: clamp(24px, 4.6vw, 36px);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -.005em;
  color: var(--c-light);
}

.page-faq .faq-head p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(234, 240, 248, .76);
}

/* ---------- 五个分区 ---------- */
.page-faq .faq-zones {
  padding: clamp(52px, 9vw, 108px) 0 clamp(44px, 7vw, 88px);
  background: linear-gradient(180deg, var(--c-sea) 0%, var(--c-deepest) 100%);
}

.page-faq .faq-zones__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 clamp(22px, 3.5vw, 34px);
  padding: 0;
  list-style: none;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border: 1px solid var(--c-tide);
  border-radius: var(--r-pill);
  background: rgba(18, 41, 74, .6);
  color: var(--c-light);
  font-size: 14px;
  text-decoration: none;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

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

.page-faq .faq-chip.is-active {
  background: var(--c-coral);
  border-color: var(--c-coral);
  color: var(--c-deepest);
  font-weight: 700;
}

.page-faq .faq-chip__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-jade);
}

.page-faq .faq-chip.is-active .faq-chip__dot {
  background: var(--c-deepest);
}

.page-faq .faq-zones__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

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

@media (min-width: 1060px) {
  .page-faq .faq-zones__grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  .page-faq .faq-zone {
    grid-column: span 2;
  }
  .page-faq .faq-zone:nth-child(4) {
    grid-column: 2 / span 2;
  }
  .page-faq .faq-zone:nth-child(5) {
    grid-column: 4 / span 2;
  }
}

.page-faq .faq-zone {
  position: relative;
  padding: 24px 22px 22px;
  border: 1px solid var(--c-tide);
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, rgba(18, 41, 74, .92) 0%, rgba(11, 30, 58, .92) 100%);
  transition: transform var(--t-mid) var(--ease), border-color var(--t-mid) var(--ease);
}

.page-faq .faq-zone:hover {
  transform: translateY(-4px);
  border-color: var(--c-jade);
}

.page-faq .faq-zone__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--c-tide);
}

.page-faq .faq-zone__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--c-gold);
}

.page-faq .faq-zone__title {
  flex: 1 1 auto;
  margin: 0;
  font-size: 19px;
  font-weight: 900;
  color: var(--c-light);
}

.page-faq .faq-zone__count {
  font-family: var(--font-mono);
  font-size: 12px;
  white-space: nowrap;
  color: var(--c-jade);
}

.page-faq .faq-zone__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-zone__list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.65;
  color: rgba(234, 240, 248, .8);
}

.page-faq .faq-zone__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-jade);
  opacity: .8;
}

/* ---------- 高频问答 ---------- */
.page-faq .faq-qa {
  padding: clamp(52px, 9vw, 104px) 0;
  background:
    radial-gradient(80% 40% at 88% 0%, rgba(30, 58, 99, .55) 0%, rgba(6, 19, 42, 0) 70%),
    var(--c-deepest);
}

.page-faq .faq-qa__lead {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: end;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-faq .faq-qa__lead h2 {
  margin: 0 0 12px;
  font-size: clamp(24px, 4.6vw, 36px);
  font-weight: 900;
  line-height: 1.25;
  color: var(--c-light);
}

.page-faq .faq-qa__lead p {
  max-width: 52ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(234, 240, 248, .76);
}

@media (min-width: 860px) {
  .page-faq .faq-qa__lead {
    grid-template-columns: minmax(0, 1fr) 236px;
    gap: clamp(32px, 5vw, 72px);
  }
}

.page-faq .faq-qa__figure {
  margin: 0;
  max-width: 220px;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--c-tide);
  border-radius: var(--r-lg);
  background: var(--c-harbor);
}

@media (min-width: 860px) {
  .page-faq .faq-qa__figure {
    max-width: none;
    justify-self: end;
  }
}

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

.page-faq .faq-qa__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--c-tide);
}

.page-faq .faq-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: clamp(18px, 2.6vw, 26px) 0;
  border-bottom: 1px solid var(--c-tide);
}

@media (min-width: 860px) {
  .page-faq .faq-item {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 0 44px;
    align-items: start;
  }
}

.page-faq .faq-item__q {
  display: flex;
  gap: 12px;
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--c-light);
}

.page-faq .faq-item__mark {
  flex: none;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-coral);
}

.page-faq .faq-item__a {
  margin: 0;
  padding-left: 20px;
  border-left: 2px solid var(--c-tide);
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(234, 240, 248, .78);
  transition: border-color var(--t-fast) var(--ease);
}

.page-faq .faq-item:hover .faq-item__a {
  border-left-color: var(--c-jade);
}

/* ---------- 下载与权限 ---------- */
.page-faq .faq-perm {
  padding: clamp(52px, 9vw, 104px) 0;
  background: var(--c-deck);
  color: var(--c-sea);
}

.page-faq .faq-perm__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
}

@media (min-width: 900px) {
  .page-faq .faq-perm__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
  }
}

.page-faq .faq-perm .faq-eyebrow {
  color: #B33A1C;
}

.page-faq .faq-perm h2 {
  margin: 0 0 16px;
  font-size: clamp(24px, 4.4vw, 36px);
  font-weight: 900;
  line-height: 1.24;
  color: var(--c-sea);
}

.page-faq .faq-perm p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.8;
  color: #33445E;
}

.page-faq .faq-perm p a {
  color: #B33A1C;
  text-decoration: none;
  border-bottom: 1px solid rgba(179, 58, 28, .4);
}

.page-faq .faq-perm p a:hover,
.page-faq .faq-perm p a:focus-visible {
  border-bottom-color: #B33A1C;
}

.page-faq .faq-perm__specs {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin: 0;
  border-top: 1px solid rgba(11, 30, 58, .16);
}

@media (min-width: 560px) {
  .page-faq .faq-perm__specs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-perm__specs > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(11, 30, 58, .16);
}

@media (min-width: 560px) {
  .page-faq .faq-perm__specs > div:nth-child(odd) {
    padding-right: 20px;
    border-right: 1px solid rgba(11, 30, 58, .16);
  }
  .page-faq .faq-perm__specs > div:nth-child(even) {
    padding-left: 20px;
  }
}

.page-faq .faq-perm__specs dt {
  font-size: 14px;
  color: #5A6C86;
  white-space: nowrap;
}

.page-faq .faq-perm__specs dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  text-align: right;
  color: var(--c-sea);
}

/* ---------- 检索技巧 ---------- */
.page-faq .faq-tips {
  padding: clamp(52px, 9vw, 104px) 0;
  background: var(--c-sea);
}

.page-faq .faq-tips__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 760px) {
  .page-faq .faq-tips__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 24px;
  }
}

.page-faq .faq-tips__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 16px;
  padding: 20px 22px;
  border: 1px solid var(--c-tide);
  border-radius: var(--r-md);
  background: rgba(18, 41, 74, .55);
}

.page-faq .faq-tips__num {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-gold);
}

.page-faq .faq-tips__item h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-light);
}

.page-faq .faq-tips__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(234, 240, 248, .74);
}

/* ---------- 报错处理 ---------- */
.page-faq .faq-errors {
  padding: clamp(52px, 9vw, 104px) 0;
  background: linear-gradient(180deg, var(--c-harbor) 0%, var(--c-deepest) 100%);
}

.page-faq .faq-errors__list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--c-tide);
}

.page-faq .faq-errors__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-tide);
}

@media (min-width: 760px) {
  .page-faq .faq-errors__row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 0 40px;
    align-items: baseline;
  }
}

.page-faq .faq-errors__sym {
  display: flex;
  gap: 10px;
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--c-light);
}

.page-faq .faq-errors__sym::before {
  content: "!";
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 107, 74, .18);
  color: var(--c-coral);
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-faq .faq-errors__fix {
  margin: 0;
  padding-left: 30px;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(234, 240, 248, .76);
}

@media (min-width: 760px) {
  .page-faq .faq-errors__fix {
    padding-left: 0;
  }
}

/* ---------- 结尾通道 ---------- */
.page-faq .faq-help {
  padding: clamp(48px, 8vw, 92px) 0 clamp(60px, 9vw, 112px);
  background: var(--c-deepest);
}

.page-faq .faq-help__band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  padding: clamp(26px, 4vw, 44px);
  border: 1px solid rgba(255, 107, 74, .32);
  border-radius: var(--r-lg);
  background: linear-gradient(120deg, rgba(255, 107, 74, .16) 0%, rgba(18, 41, 74, .92) 55%, rgba(11, 30, 58, .96) 100%);
}

@media (min-width: 800px) {
  .page-faq .faq-help__band {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
    width: min(100%, 940px);
    margin-left: auto;
  }
}

.page-faq .faq-help__band h2 {
  margin: 0 0 10px;
  font-size: clamp(21px, 3.4vw, 28px);
  font-weight: 900;
  line-height: 1.3;
  color: var(--c-light);
}

.page-faq .faq-help__band p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(234, 240, 248, .8);
}

.page-faq .faq-help__band .btn {
  justify-self: start;
}

.page-faq .faq-help__mail {
  max-width: 760px;
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--c-mist);
}

.page-faq .faq-help__mail-addr {
  font-family: var(--font-mono);
  color: var(--c-light);
  word-break: break-all;
}

/* ---------- 焦点可见性 ---------- */
.page-faq a:focus-visible,
.page-faq input:focus-visible {
  outline: 2px solid var(--c-coral);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-zone,
  .page-faq .faq-chip,
  .page-faq .faq-item__a,
  .page-faq .faq-search {
    transition: none;
  }
  .page-faq .faq-zone:hover {
    transform: none;
  }
}