.page-faq {
  --faq-r: 0px;
  --faq-gap: clamp(28px, 4vw, 56px);
  color: var(--white);
}

.page-faq .faq-inner {
  width: 100%;
  max-width: calc(var(--max-w) + var(--rail-w));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(36px, 6vw, 64px) clamp(44px, 7vw, 84px);
  background:
    radial-gradient(120% 130% at 88% -10%, rgba(0, 229, 255, 0.16), transparent 58%),
    linear-gradient(162deg, var(--ink) 0%, var(--ink-deep) 100%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -60px;
  top: 18%;
  width: clamp(160px, 28vw, 340px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan));
  transform: rotate(-32deg);
  opacity: 0.55;
  pointer-events: none;
}

.page-faq .faq-hero .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-hero .crumbs a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .faq-hero .crumbs a:hover,
.page-faq .faq-hero .crumbs a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-faq .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-mist);
  margin: 0 0 16px;
}

.page-faq .faq-hero h1 {
  margin: 0;
  max-width: 18ch;
  font-size: clamp(34px, 6.6vw, 78px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  font-weight: 900;
  overflow-wrap: anywhere;
}

.page-faq .faq-hero__lead {
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  max-width: 42ch;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3vw, 36px);
}

/* 编号检索带 */
.page-faq .faq-search {
  position: relative;
  margin-block: clamp(24px, 4vw, 40px) 0;
  background: linear-gradient(180deg, var(--panel) 0%, #0d2145 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 40px), calc(100% - 52px) 100%, 0 100%);
  border-left: 3px solid var(--cyan);
  padding-block: clamp(28px, 4vw, 44px) clamp(40px, 5vw, 60px);
}

.page-faq .faq-search__grid {
  display: grid;
  gap: clamp(22px, 3vw, 32px);
  align-items: center;
}

.page-faq .faq-search__text h2 {
  margin: 0 0 12px;
  font-size: clamp(21px, 2.6vw, 30px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  font-weight: 900;
}

.page-faq .faq-search__text p {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .code-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.page-faq .code-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--white);
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%);
  transition: border-color 180ms var(--ease), color 180ms var(--ease), transform 180ms var(--ease);
}

.page-faq .code-chip .mono {
  color: var(--cyan);
  letter-spacing: 0.08em;
}

.page-faq .code-chip:hover,
.page-faq .code-chip:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan-mist);
  transform: translateY(-2px);
}

.page-faq .code-chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .code-chip[data-copied] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-deep);
}

.page-faq .code-chip[data-copied] .mono {
  color: var(--ink-deep);
}

.page-faq .faq-search__hint {
  margin: 16px 0 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--dim);
}

.page-faq .faq-search__figure {
  margin: 0;
}

.page-faq .figure__media {
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-deep);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

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

.page-faq .faq-search__figure .figure__media img {
  aspect-ratio: 7 / 4;
}

.page-faq .figure__cap {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

/* 双栏主体 */
.page-faq .faq-body {
  display: grid;
  gap: var(--faq-gap);
  padding-block: clamp(44px, 6vw, 88px);
}

.page-faq .faq-side__title {
  margin: 0 0 10px;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.3;
  font-weight: 900;
}

.page-faq .faq-side__lead {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-side__figure {
  margin: 0 0 24px;
}

.page-faq .faq-side__figure .figure__media img {
  aspect-ratio: 4 / 3;
}

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

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

.page-faq .faq-index__list a {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: baseline;
  padding: 12px 12px 12px 14px;
  color: var(--white);
  text-decoration: none;
  border-left: 3px solid transparent;
  margin-left: -1px;
  transition: background 180ms var(--ease), border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  background: rgba(0, 229, 255, 0.07);
  border-left-color: var(--orange);
  color: var(--cyan-mist);
}

.page-faq .faq-index__list a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-index__num {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .faq-index__name {
  font-size: 14px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.page-faq .faq-index__count {
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
}

.page-faq .faq-side__note {
  margin: 18px 0 0;
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  background: var(--panel);
  border-left: 3px solid var(--orange-sand);
}

.page-faq .faq-side__note .mono {
  color: var(--cyan-mist);
}

/* 问答 */
.page-faq .faq-qa h2 {
  margin: 0 0 10px;
  font-size: clamp(22px, 2.8vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  font-weight: 900;
}

.page-faq .faq-qa__lead {
  margin: 0 0 clamp(20px, 3vw, 28px);
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .qa {
  position: relative;
  margin-bottom: 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  transition: border-color 180ms var(--ease);
}

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

.page-faq .qa__summary {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 16px 18px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--white);
  list-style: none;
}

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

.page-faq .qa__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .qa__mark {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 4px;
  border: 1px solid var(--cyan);
  transition: transform 200ms var(--ease), background 200ms var(--ease);
}

.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 6px;
  height: 1px;
  background: var(--cyan);
  transform: translate(-50%, -50%);
}

.page-faq .qa__q {
  overflow-wrap: anywhere;
}

.page-faq .qa__code {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--dim);
  white-space: nowrap;
}

.page-faq .qa[open] {
  border-color: var(--cyan);
  box-shadow: inset 3px 0 0 var(--orange);
}

.page-faq .qa[open] .qa__mark {
  transform: rotate(90deg);
  background: var(--orange);
  border-color: var(--orange);
}

.page-faq .qa[open] .qa__mark::after {
  background: var(--ink-deep);
}

.page-faq .qa[open] .qa__code {
  color: var(--cyan-mist);
}

.page-faq .qa__body {
  padding: 0 18px 20px 48px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  animation: faqReveal 200ms var(--ease) both;
}

.page-faq .qa__body p {
  margin: 0 0 12px;
}

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

.page-faq .qa__body .mono {
  color: var(--cyan-mist);
  letter-spacing: 0.06em;
}

.page-faq .qa__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--dim);
}

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

.page-faq .steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 0 0 12px;
  padding: 0;
}

.page-faq .steps li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 40px;
  margin-bottom: 12px;
  min-height: 28px;
}

.page-faq .steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-deep);
  background: var(--cyan);
}

@keyframes faqReveal {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 换设备路径 */
.page-faq .faq-path {
  background: linear-gradient(180deg, var(--ink-deep) 0%, var(--ink) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding-block: clamp(44px, 6vw, 88px);
}

.page-faq .faq-path h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 2.8vw, 34px);
  line-height: 1.22;
  font-weight: 900;
}

.page-faq .faq-path__lead {
  margin: 0 0 clamp(28px, 4vw, 40px);
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-path__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
  counter-reset: none;
}

.page-faq .faq-path__steps li {
  position: relative;
  padding-left: 52px;
  padding-bottom: 4px;
  border-left: 1px solid var(--line);
  padding-top: 2px;
  margin-left: 14px;
}

.page-faq .faq-path__num {
  position: absolute;
  left: -15px;
  top: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-deep);
  background: var(--orange);
}

.page-faq .faq-path__steps h3 {
  margin: 0 0 6px;
  font-size: 16px;
  line-height: 1.4;
  font-weight: 700;
  color: var(--white);
}

.page-faq .faq-path__steps p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* 反馈区 */
.page-faq .faq-feedback {
  background: var(--paper);
  color: var(--ink);
  padding-block: clamp(40px, 6vw, 76px);
}

.page-faq .faq-feedback__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-faq .faq-feedback h2 {
  margin: 0 0 14px;
  font-size: clamp(21px, 2.6vw, 32px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  font-weight: 900;
  color: var(--ink-deep);
}

.page-faq .faq-feedback__main p {
  margin: 0 0 12px;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.8;
  color: #23365c;
}

.page-faq .faq-feedback__side {
  border-left: 3px solid var(--orange);
  padding-left: 18px;
}

.page-faq .faq-feedback__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #3b5a8c;
}

.page-faq .faq-feedback__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}

.page-faq .faq-feedback__list li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 8px 0;
  font-size: 14px;
  line-height: 1.65;
  color: #23365c;
  border-bottom: 1px solid rgba(36, 64, 111, 0.18);
}

.page-faq .faq-feedback__list li .mono {
  color: #0a6d80;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq .faq-feedback__contact {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-mail {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-deep);
  background: transparent;
  border: 1px solid #24406f;
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  transition: background 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
  overflow-wrap: anywhere;
  text-align: left;
}

.page-faq .faq-mail:hover,
.page-faq .faq-mail:focus-visible {
  background: var(--ink-deep);
  color: var(--paper);
  border-color: var(--ink-deep);
}

.page-faq .faq-mail:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-mail[data-copied] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink-deep);
}

.page-faq .faq-feedback__note {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: #4a628f;
}

/* 下一步 */
.page-faq .faq-more {
  padding-block: clamp(40px, 5vw, 72px);
}

.page-faq .faq-more h2 {
  margin: 0 0 clamp(18px, 3vw, 28px);
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 900;
  line-height: 1.3;
}

.page-faq .faq-more__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-more__list a {
  display: block;
  padding: 16px 18px;
  text-decoration: none;
  color: var(--white);
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  transition: border-color 180ms var(--ease), transform 180ms var(--ease), background 180ms var(--ease);
}

.page-faq .faq-more__list a:hover,
.page-faq .faq-more__list a:focus-visible {
  border-color: var(--cyan);
  background: #16305f;
  transform: translateY(-3px);
}

.page-faq .faq-more__list a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-more__t {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--cyan-mist);
  margin-bottom: 4px;
}

.page-faq .faq-more__d {
  display: block;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

/* 平板与桌面 */
@media (min-width: 720px) {
  .page-faq .faq-path__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 32px;
  }

  .page-faq .faq-path__steps li {
    margin-left: 16px;
    padding-left: 54px;
  }

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

  .page-faq .faq-feedback__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-search__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-faq .faq-search__figure {
    margin-top: 8px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-inner {
    padding-left: calc(var(--rail-w) + var(--gutter));
    padding-right: var(--gutter);
  }

  .page-faq .faq-body {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--topbar-h) + 20px);
  }

  .page-faq .qa__summary {
    font-size: 16px;
    padding: 18px 22px;
  }

  .page-faq .qa__body {
    padding: 0 22px 22px 52px;
    font-size: 15px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-path__steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 20px;
    border-top: 1px solid var(--line);
    padding-top: 28px;
  }

  .page-faq .faq-path__steps li {
    border-left: 0;
    margin-left: 0;
    padding-left: 0;
    padding-top: 26px;
  }

  .page-faq .faq-path__num {
    left: 0;
    top: -15px;
    z-index: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__body {
    animation: none;
  }

  .page-faq .code-chip:hover,
  .page-faq .code-chip:focus-visible,
  .page-faq .faq-more__list a:hover,
  .page-faq .faq-more__list a:focus-visible {
    transform: none;
  }

  .page-faq .qa__mark {
    transition: none;
  }
}
<<<END>>>