.page-faq {
  --faq-shell: 1360px;
  --faq-line: rgba(155, 167, 162, 0.22);
  position: relative;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  padding-bottom: clamp(4rem, 8vw, 7rem);
  overflow-x: clip;
}

.page-faq::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(155, 167, 162, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(155, 167, 162, 0.06) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
  z-index: 0;
}

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

/* ---------- 面包屑 ---------- */

.page-faq .faq-crumb {
  max-width: var(--faq-shell);
  margin: 0 auto;
  padding: 20px var(--gutter) 0;
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  letter-spacing: 0.14em;
  color: var(--silver);
}

.page-faq .breadcrumb-item {
  display: flex;
  align-items: center;
}

.page-faq .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--line-strong);
}

.page-faq .breadcrumb-link {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .breadcrumb-link:hover,
.page-faq .breadcrumb-link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--line-cyan);
}

.page-faq .breadcrumb-item [aria-current="page"] {
  color: var(--white);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-lead {
  max-width: var(--faq-shell);
  margin: 0 auto;
  padding: clamp(2.25rem, 5.5vw, 4.5rem) var(--gutter) clamp(1.75rem, 3.5vw, 2.75rem);
  display: grid;
  gap: 1.15rem;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-lead h1 {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 5vw, 3.75rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(1rem, 1.3vw, 1.0625rem);
  line-height: 1.8;
  color: rgba(232, 241, 238, 0.78);
}

.page-faq .faq-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.35rem;
}

/* ---------- 双栏骨架 ---------- */

.page-faq .faq-body {
  max-width: var(--faq-shell);
  margin: 0 auto;
  padding: clamp(2rem, 4vw, 3.25rem) var(--gutter) 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 3rem);
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 264px minmax(0, 1fr);
    gap: 3.25rem;
  }
}

/* ---------- 左侧问题索引 ---------- */

.page-faq .faq-index {
  align-self: start;
  min-width: 0;
}

@media (min-width: 960px) {
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

.page-faq .faq-index-title {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 0.9rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--faq-line);
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  letter-spacing: 0.2em;
  color: var(--silver);
}

.page-faq .faq-index-title::before {
  content: "";
  flex: none;
  width: 22px;
  height: 1px;
  background: var(--cyan);
}

.page-faq .faq-index-list {
  display: flex;
  flex-direction: row;
  gap: 0.5rem;
  margin: 0;
  padding: 0 0 0.5rem;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
}

.page-faq .faq-index-list li {
  flex: none;
}

@media (min-width: 960px) {
  .page-faq .faq-index-list {
    flex-direction: column;
    gap: 0;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-faq .faq-index-list li {
    flex: 1 1 auto;
    min-width: 0;
  }
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--faq-line);
  background: rgba(20, 24, 26, 0.6);
  color: rgba(232, 241, 238, 0.72);
  font-size: 0.875rem;
  line-height: 1.45;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  color: var(--cyan);
  border-color: var(--line-cyan);
  background: rgba(31, 224, 192, 0.07);
}

@media (min-width: 960px) {
  .page-faq .faq-index-list a {
    border: 0;
    border-left: 2px solid var(--faq-line);
    background: none;
    white-space: normal;
    padding: 0.7rem 0.5rem 0.7rem 0.9rem;
  }

  .page-faq .faq-index-list a:hover,
  .page-faq .faq-index-list a:focus-visible {
    border-left-color: var(--cyan);
  }
}

.page-faq .idx-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--orange);
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-answers {
  min-width: 0;
}

.page-faq .qa {
  border-top: 1px solid var(--faq-line);
  transition: background-color 0.24s var(--ease);
}

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

.page-faq .qa:target {
  background: rgba(31, 224, 192, 0.05);
}

.page-faq .qa-box {
  margin: 0;
}

.page-faq .qa-head {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 1.35rem 0.25rem 1.35rem 0;
  cursor: pointer;
  list-style: none;
  transition: background-color 0.2s var(--ease);
}

.page-faq .qa-head::-webkit-details-marker {
  display: none;
}

.page-faq .qa-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .qa-title {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.0625rem, 2vw, 1.375rem);
  line-height: 1.42;
  letter-spacing: -0.01em;
  color: var(--white);
  transition: color 0.2s var(--ease);
}

.page-faq .qa-mark {
  position: relative;
  flex: none;
  align-self: center;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  clip-path: polygon(0 0, 100% 0, 100% 74%, 74% 100%, 0 100%);
  transition: border-color 0.2s var(--ease);
}

.page-faq .qa-mark::before,
.page-faq .qa-mark::after {
  content: "";
  position: absolute;
  background: var(--silver);
  transition: transform 0.22s var(--ease), background-color 0.22s var(--ease);
}

.page-faq .qa-mark::before {
  width: 10px;
  height: 1.5px;
}

.page-faq .qa-mark::after {
  width: 1.5px;
  height: 10px;
}

.page-faq .qa-head:hover .qa-title {
  color: var(--cyan);
}

.page-faq .qa-head:hover .qa-mark,
.page-faq .qa-head:focus-visible .qa-mark {
  border-color: var(--cyan);
}

.page-faq .qa-head:focus-visible {
  outline: 2px solid var(--line-cyan);
  outline-offset: 3px;
}

.page-faq .qa-box[open] .qa-mark {
  border-color: var(--cyan);
}

.page-faq .qa-box[open] .qa-mark::before {
  background: var(--cyan);
}

.page-faq .qa-box[open] .qa-mark::after {
  transform: scaleY(0);
}

.page-faq .qa-box[open] .qa-title {
  color: var(--white);
}

.page-faq .qa-body {
  max-width: 78ch;
  padding: 0 0 1.9rem;
  font-size: 1rem;
  line-height: 1.78;
  color: rgba(232, 241, 238, 0.8);
}

.page-faq .qa-box[open] .qa-body {
  animation: faqOpen 0.22s var(--ease) both;
}

@keyframes faqOpen {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa-box[open] .qa-body {
    animation: none;
  }
}

.page-faq .qa-body p {
  margin: 0 0 1rem;
}

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

.page-faq .qa-body strong {
  color: var(--white);
  font-weight: 700;
}

.page-faq .qa-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .qa-link:hover,
.page-faq .qa-link:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 步骤列表 ---------- */

.page-faq .step-list {
  display: grid;
  gap: 0.6rem;
  margin: 0 0 1.1rem;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .step-list li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 0.85rem;
  align-items: baseline;
  padding: 0.75rem 0.95rem;
  background: rgba(20, 24, 26, 0.66);
  border-left: 2px solid var(--line-cyan);
  font-size: 0.9375rem;
  line-height: 1.72;
}

.page-faq .step-list li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .step-list--field li::before {
  color: var(--orange);
}

.page-faq .step-list--field li {
  border-left-color: var(--line-orange);
}

/* ---------- 图片 ---------- */

.page-faq .qa-figure {
  margin: 1.4rem 0 1.3rem;
  padding: 0;
}

.page-faq .qa-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--faq-line);
  background: var(--coal);
}

.page-faq .qa-figure figcaption {
  margin-top: 0.6rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--silver);
}

.page-faq .qa-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.4rem;
  align-items: start;
}

@media (min-width: 720px) {
  .page-faq .qa-split {
    grid-template-columns: minmax(0, 1fr) 232px;
    gap: 1.75rem;
  }
}

.page-faq .qa-figure--phone {
  margin: 0.25rem 0 0;
}

.page-faq .qa-figure--phone img {
  aspect-ratio: 3 / 4;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

/* ---------- 三步流程图 ---------- */

.page-faq .flow-figure {
  margin: 1.5rem 0 1.3rem;
  padding: 1rem 1rem 0.85rem;
  background: rgba(20, 24, 26, 0.7);
  border: 1px solid var(--faq-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-faq .flow-figure svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .flow-figure figcaption {
  margin-top: 0.7rem;
  padding-left: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--silver);
}

.page-faq .flow-box {
  fill: rgba(42, 30, 22, 0.55);
  stroke: rgba(155, 167, 162, 0.45);
  stroke-width: 1;
}

.page-faq .flow-box--last {
  fill: rgba(255, 106, 26, 0.1);
  stroke: rgba(255, 106, 26, 0.5);
}

.page-faq .flow-link {
  fill: none;
  stroke: rgba(31, 224, 192, 0.42);
  stroke-width: 1.2;
  stroke-dasharray: 5 5;
}

.page-faq .flow-glyph {
  fill: var(--cyan);
  opacity: 0.85;
}

.page-faq .flow-num {
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: 0.08em;
  fill: var(--cyan);
}

.page-faq .flow-num--last {
  fill: var(--orange);
}

.page-faq .flow-label {
  font-family: var(--font-body);
  font-size: 16px;
  fill: var(--white);
}

/* ---------- 速查表 ---------- */

.page-faq .qa-table-wrap {
  margin: 1.2rem 0 0.2rem;
}

.page-faq table.data-table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  font-size: 0.9rem;
  line-height: 1.65;
}

.page-faq table.data-table th,
.page-faq table.data-table td {
  padding: 0.8rem 0.95rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq table.data-table thead th {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--silver);
  white-space: nowrap;
  border-bottom-color: var(--line-strong);
}

.page-faq table.data-table tbody tr {
  transition: background-color 0.18s var(--ease);
}

.page-faq table.data-table tbody tr:hover,
.page-faq table.data-table tbody tr:focus-within {
  background: rgba(31, 224, 192, 0.07);
}

.page-faq table.data-table .num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  color: var(--orange);
  white-space: nowrap;
}

.page-faq table.data-table .entry-name {
  color: var(--white);
  font-weight: 600;
  white-space: nowrap;
}

.page-faq table.data-table .qa-link {
  white-space: nowrap;
}

/* ---------- 窄屏微调 ---------- */

@media (max-width: 560px) {
  .page-faq .qa-head {
    gap: 0.7rem;
    padding: 1.15rem 0.1rem 1.15rem 0;
  }

  .page-faq .faq-lead h1 {
    max-width: none;
  }

  .page-faq .step-list li {
    grid-template-columns: 24px minmax(0, 1fr);
    gap: 0.6rem;
    padding: 0.7rem 0.75rem;
  }

  .page-faq .flow-figure {
    padding: 0.6rem 0.6rem 0.55rem;
  }

  .page-faq .flow-label {
    font-size: 14px;
  }

  .page-faq .flow-num {
    font-size: 17px;
  }
}
<<<END>>>