.page-faq {
  --faq-gap: clamp(20px, 3.4vw, 36px);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(30px, 5vw, 62px) 0 clamp(36px, 5.4vw, 70px);
  background: linear-gradient(122deg, var(--c-ink-3) 0%, var(--c-ink) 46%, var(--c-ink-2) 100%);
  color: var(--c-bone);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -14%;
  width: 64%;
  height: 176%;
  background: linear-gradient(180deg, rgba(227, 178, 60, .16), rgba(227, 178, 60, 0) 78%);
  transform: rotate(-12deg);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-gold) 0%, var(--c-blue) 46%, transparent 100%);
  opacity: .85;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 16px;
  max-width: 780px;
}

.page-faq .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0 0 6px;
  padding: 0;
  list-style: none;
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--c-mist);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: rgba(168, 176, 180, .5);
}

.page-faq .breadcrumb a {
  color: var(--c-mist);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover {
  color: var(--c-gold);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 4.8vw, 48px);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--c-bone);
}

.page-faq .faq-hero .lede {
  margin: 0;
  max-width: 640px;
  font-size: clamp(16px, 1.9vw, 17.5px);
  line-height: 1.78;
  color: rgba(243, 239, 230, .84);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

/* ---------- 三步入门 ---------- */
.page-faq .faq-steps {
  background: var(--c-bone);
  color: var(--c-ink);
}

.page-faq .faq-steps .section-title,
.page-faq .faq-help .section-title {
  color: var(--c-ink);
}

.page-faq .faq-guide .section-title {
  color: var(--c-bone);
}

.page-faq .faq-intro {
  margin: 14px 0 0;
  max-width: 640px;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(11, 43, 36, .74);
}

.page-faq .faq-guide .faq-intro {
  color: rgba(243, 239, 230, .76);
}

.page-faq .step-track {
  list-style: none;
  margin: clamp(26px, 3.8vw, 42px) 0 0;
  padding: 0;
  display: grid;
  gap: 30px;
}

.page-faq .step-item {
  position: relative;
}

.page-faq .step-num {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  font-family: var(--font-data);
  font-size: 15px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--c-ink);
  background: var(--c-gold);
  clip-path: polygon(0 0, 100% 0, 100% 72%, calc(100% - 11px) 100%, 0 100%);
}

.page-faq .step-title {
  margin: 16px 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.42;
  letter-spacing: -.01em;
  color: var(--c-ink);
}

.page-faq .step-item > p {
  margin: 0 0 12px;
  max-width: 40ch;
  font-size: 15.5px;
  line-height: 1.76;
  color: rgba(11, 43, 36, .78);
}

.page-faq .step-link {
  display: inline-block;
  padding-bottom: 2px;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-ink);
  text-decoration: none;
  border-bottom: 2px solid var(--c-gold);
}

.page-faq .step-link:hover {
  color: var(--c-clay);
  border-bottom-color: var(--c-clay);
}

@media (min-width: 900px) {
  .page-faq .step-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    position: relative;
  }

  .page-faq .step-track::before {
    content: "";
    position: absolute;
    top: 23px;
    left: 26px;
    right: 26px;
    height: 2px;
    background: repeating-linear-gradient(90deg, rgba(227, 178, 60, .8) 0 12px, transparent 12px 24px);
    z-index: 0;
  }

  .page-faq .step-item {
    padding-right: clamp(20px, 3vw, 38px);
  }

  .page-faq .step-item:nth-child(2) {
    padding-top: 16px;
  }

  .page-faq .step-item:nth-child(3) {
    padding-top: 32px;
  }
}

/* ---------- 分组教程 ---------- */
.page-faq .faq-guide {
  position: relative;
  overflow: hidden;
  background: var(--c-ink-2);
  color: var(--c-bone);
}

.page-faq .faq-guide::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(112deg, rgba(11, 43, 36, .92) 0%, rgba(11, 43, 36, 0) 58%);
  pointer-events: none;
}

.page-faq .faq-guide > .container {
  position: relative;
  z-index: 1;
}

.page-faq .seg {
  display: flex;
  flex-wrap: nowrap;
  gap: 10px;
  margin: clamp(22px, 3vw, 32px) 0 clamp(20px, 2.8vw, 30px);
  padding-bottom: 10px;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--c-rock) transparent;
}

.page-faq .seg::-webkit-scrollbar {
  height: 4px;
}

.page-faq .seg::-webkit-scrollbar-thumb {
  background: var(--c-rock);
}

.page-faq .seg-btn {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border: 1px solid var(--line-strong);
  background: rgba(57, 66, 74, .5);
  color: var(--c-bone);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% 66%, calc(100% - 13px) 100%, 0 100%);
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .seg-btn:hover {
  background: rgba(57, 66, 74, .92);
  border-color: var(--c-mist);
}

.page-faq .seg-btn[aria-selected="true"] {
  background: var(--c-gold);
  border-color: var(--c-gold);
  color: var(--c-ink);
}

.page-faq .seg-btn:focus-visible {
  outline: 2px solid var(--c-blue-soft);
  outline-offset: 2px;
}

.page-faq .seg-idx {
  font-family: var(--font-data);
  font-size: 12px;
  opacity: .7;
}

.page-faq .seg-count {
  padding: 2px 6px;
  border: 1px solid currentColor;
  font-family: var(--font-data);
  font-size: 11px;
  opacity: .68;
}

.page-faq .seg-panel-wrap {
  display: block;
}

.page-faq .seg-panel {
  min-width: 0;
  margin-top: 6px;
}

.page-faq .seg-panel-main,
.page-faq .seg-panel-side {
  min-width: 0;
}

.page-faq .seg-panel-side {
  display: grid;
  gap: 20px;
  align-content: start;
  margin-top: clamp(24px, 3vw, 34px);
}

.page-faq .seg-h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(20px, 2.5vw, 26px);
  line-height: 1.36;
  letter-spacing: -.01em;
  color: var(--c-bone);
}

@media (min-width: 960px) {
  .page-faq .seg-panel--split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .seg-panel--split .seg-panel-side {
    margin-top: 0;
  }
}

/* ---------- 教程条目 ---------- */
.page-faq .faq-list {
  display: grid;
  margin-top: 20px;
}

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

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

.page-faq .faq-item summary {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 30px 15px 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.52;
  color: var(--c-bone);
  transition: color .18s var(--ease);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 13px;
  font-family: var(--font-data);
  font-size: 19px;
  line-height: 1;
  color: var(--c-gold);
}

.page-faq .faq-item summary:hover {
  color: var(--c-gold-soft);
}

.page-faq .faq-item[open] summary {
  color: var(--c-gold-soft);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
}

.page-faq .faq-body {
  padding: 0 30px 18px 0;
  animation: faqBodyIn .22s var(--ease) both;
}

.page-faq .faq-body p {
  margin: 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(243, 239, 230, .76);
}

@keyframes faqBodyIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 标签云 ---------- */
.page-faq .faq-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-tag {
  position: relative;
  display: inline-block;
  padding: 7px 11px;
  border: 1px solid var(--line);
  background: rgba(243, 239, 230, .05);
  color: var(--c-bone);
  font-family: var(--font-data);
  font-size: 12.5px;
  line-height: 1.4;
  cursor: default;
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), transform .18s var(--ease);
}

.page-faq .faq-tag:nth-child(3n + 2) {
  transform: translateY(3px);
}

.page-faq .faq-tag:nth-child(4n) {
  transform: translateY(-3px);
}

.page-faq .faq-tag:hover,
.page-faq .faq-tag:focus,
.page-faq .faq-tag:focus-visible {
  background: rgba(227, 178, 60, .16);
  border-color: var(--c-gold);
  color: var(--c-gold-soft);
  transform: translateY(-3px);
  outline: none;
}

.page-faq .tag-count {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 7px);
  z-index: 3;
  padding: 4px 8px;
  white-space: nowrap;
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--c-ink);
  background: var(--c-gold);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate(-50%, 4px);
  transition: opacity .16s var(--ease), transform .16s var(--ease), visibility .16s;
}

.page-faq .faq-tag:hover .tag-count,
.page-faq .faq-tag:focus .tag-count,
.page-faq .faq-tag:focus-visible .tag-count {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-faq .media-cap {
  display: block;
  margin-top: 8px;
  font-family: var(--font-data);
  font-size: 12px;
  line-height: 1.65;
  color: var(--c-mist);
}

/* ---------- 签表示意 ---------- */
.page-faq .bracket-shell {
  padding: 14px;
  background: rgba(11, 43, 36, .6);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-faq .bracket-map {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .bk-line {
  fill: none;
  stroke: rgba(168, 176, 180, .5);
  stroke-width: 1.3;
}

.page-faq .bk-box {
  fill: rgba(47, 155, 224, .12);
  stroke: var(--c-blue);
  stroke-width: 1.2;
}

.page-faq .bk-box--gold {
  fill: rgba(227, 178, 60, .18);
  stroke: var(--c-gold);
}

.page-faq .bk-label {
  fill: var(--c-bone);
  font-family: var(--font-data);
  font-size: 10px;
}

/* ---------- 三城读法 ---------- */
.page-faq .city-list {
  list-style: none;
  margin: clamp(20px, 2.6vw, 30px) 0 0;
  padding: 0;
}

.page-faq .city-row {
  display: grid;
  gap: 10px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.page-faq .city-row:last-child {
  border-bottom: 1px solid var(--line);
}

.page-faq .city-code {
  font-family: var(--font-data);
  font-size: 15px;
  letter-spacing: .08em;
  color: var(--c-gold);
}

.page-faq .city-name {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.42;
  color: var(--c-bone);
}

.page-faq .city-body p {
  margin: 0 0 10px;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(243, 239, 230, .78);
}

.page-faq .city-tip {
  font-family: var(--font-data);
  font-size: 12.5px;
  color: var(--c-blue-soft);
}

.page-faq .city-note {
  margin: 24px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--c-mist);
}

@media (min-width: 760px) {
  .page-faq .city-row {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }

  .page-faq .city-row:nth-child(2) {
    padding-left: 24px;
  }

  .page-faq .city-row:nth-child(3) {
    padding-left: 48px;
  }

  .page-faq .city-code {
    padding-top: 4px;
  }
}

/* ---------- 求助 ---------- */
.page-faq .faq-help {
  background: var(--c-bone);
  color: var(--c-ink);
}

.page-faq .help-grid {
  display: grid;
  margin-top: clamp(24px, 3.2vw, 36px);
}

.page-faq .help-col {
  padding: 22px 0 20px;
  border-top: 1px solid rgba(11, 43, 36, .16);
}

.page-faq .help-col h3 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.45;
  color: var(--c-ink);
}

.page-faq .help-col p {
  margin: 0 0 10px;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(11, 43, 36, .78);
}

.page-faq .help-mail {
  font-family: var(--font-data);
  font-size: 15px;
  color: var(--c-clay);
  word-break: break-all;
}

.page-faq .help-link {
  display: inline-block;
  padding-bottom: 2px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-ink);
  text-decoration: none;
  border-bottom: 2px solid var(--c-gold);
}

.page-faq .help-link:hover {
  color: var(--c-clay);
  border-bottom-color: var(--c-clay);
}

.page-faq .help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 14px;
}

.page-faq .help-foot {
  margin: 26px 0 0;
  font-family: var(--font-data);
  font-size: 13px;
  color: rgba(11, 43, 36, .6);
}

@media (min-width: 860px) {
  .page-faq .help-grid {
    grid-template-columns: 1.1fr .9fr;
    column-gap: clamp(30px, 4vw, 58px);
  }

  .page-faq .help-col:nth-child(3) {
    grid-column: 1 / -1;
    margin-top: 26px;
  }
}

/* ---------- 动效与窄屏 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-body {
    animation: none;
  }

  .page-faq .seg-btn,
  .page-faq .faq-tag,
  .page-faq .tag-count,
  .page-faq .step-num {
    transition: none;
  }
}

@media (max-width: 640px) {
  .page-faq .faq-hero h1 {
    font-size: 28px;
    letter-spacing: -.01em;
  }

  .page-faq .seg-btn {
    padding: 10px 15px;
    font-size: 14px;
  }

  .page-faq .faq-item summary {
    font-size: 15.5px;
    padding-right: 24px;
  }

  .page-faq .faq-body {
    padding-right: 0;
  }

  .page-faq .city-row:nth-child(n) {
    padding-left: 0;
  }
}