.page-faq {
  --faq-rail: 226px;
  --faq-side: 268px;
  --faq-gap: clamp(22px, 2.6vw, 46px);
  background: var(--pearl);
  color: var(--graphite);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--pearl);
  padding: clamp(26px, 4vw, 62px) 0 clamp(34px, 5vw, 72px);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0 0 0 auto;
  width: 100%;
  background: linear-gradient(168deg, var(--ink) 0%, var(--ink-2) 62%, var(--ink-3) 100%);
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 100%);
  z-index: 0;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: -18%;
  top: 18%;
  width: 46%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--lake-2));
  z-index: 1;
  opacity: .7;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.4vw, 48px);
  align-items: center;
}

.page-faq .faq-hero-copy .eyebrow {
  color: var(--lake);
}

.page-faq .faq-hero-copy h1 {
  font-size: clamp(2.1rem, 6.2vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: -.02em;
  font-weight: 900;
  color: var(--ink);
  margin: 14px 0 18px;
}

.page-faq .faq-hero-copy .lede {
  max-width: 46ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--graphite);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 3vw, 40px);
  margin-top: clamp(28px, 3.6vw, 44px);
  padding-top: 20px;
  border-top: 1px solid var(--line);
  list-style: none;
}

.page-faq .faq-hero-facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-fact-num {
  font-size: clamp(1.3rem, 2.4vw, 1.75rem);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.1;
}

.page-faq .faq-fact-key {
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-faq .faq-hero-visual {
  margin: 0;
  position: relative;
}

.page-faq .faq-hero-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-dark);
  box-shadow: var(--shadow-1);
  background: linear-gradient(140deg, var(--ink) 0%, var(--ink-2) 100%);
}

.page-faq .faq-hero-visual figcaption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--lake-2);
}

/* ---------- 三栏画布 ---------- */
.page-faq .faq-canvas {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  padding-top: clamp(38px, 5vw, 72px);
  padding-bottom: clamp(38px, 5vw, 72px);
  align-items: start;
}

.page-faq .faq-rail {
  position: relative;
}

.page-faq .faq-index {
  border-top: 2px solid var(--ink);
  padding-top: 14px;
}

.page-faq .faq-index-title {
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .16em;
  color: var(--mist);
  margin-bottom: 12px;
}

.page-faq .faq-index ol {
  list-style: none;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  counter-reset: faqidx;
}

.page-faq .faq-index li {
  flex: 0 0 auto;
  counter-increment: faqidx;
}

.page-faq .faq-index li a {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 13.5px;
  color: var(--graphite);
  text-decoration: none;
  background: var(--pearl-2);
  transition: border-color .2s var(--ease), color .2s var(--ease);
  white-space: nowrap;
}

.page-faq .faq-index li a::before {
  content: "0" counter(faqidx);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--lake);
}

.page-faq .faq-index li a:hover,
.page-faq .faq-index li a:focus-visible {
  border-color: var(--lake);
  color: var(--ink);
}

/* ---------- 正文区块 ---------- */
.page-faq .faq-main {
  display: flex;
  flex-direction: column;
  gap: clamp(46px, 6vw, 84px);
  min-width: 0;
}

.page-faq .faq-block {
  scroll-margin-top: 92px;
}

.page-faq .faq-block-head {
  max-width: 62ch;
  margin-bottom: clamp(20px, 2.6vw, 32px);
}

.page-faq .faq-block-head .eyebrow {
  color: var(--lake);
}

.page-faq .faq-block-head h2 {
  font-size: clamp(1.5rem, 3.4vw, 2.05rem);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--ink);
  margin: 10px 0 12px;
}

.page-faq .faq-block-note {
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-block p {
  font-size: 15.5px;
  line-height: 1.85;
}

/* ---------- 三步 ---------- */
.page-faq .faq-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line);
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  padding: clamp(20px, 2.6vw, 30px) 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-step-num {
  font-size: 26px;
  font-weight: 700;
  color: var(--lake);
  line-height: 1;
}

.page-faq .faq-step-body h3 {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  font-size: clamp(1.02rem, 1.7vw, 1.18rem);
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}

.page-faq .faq-step-time {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .04em;
  color: var(--gold);
  border: 1px solid var(--gold-2);
  border-radius: 999px;
  padding: 2px 10px;
}

.page-faq .faq-step-body p {
  color: var(--graphite);
}

/* ---------- 入口深色块 ---------- */
.page-faq .faq-block--ink {
  background: var(--ink);
  color: var(--pearl);
  padding: clamp(28px, 4vw, 48px) clamp(20px, 3.4vw, 44px);
  border-radius: var(--radius);
  scroll-margin-top: 92px;
}

.page-faq .faq-block--ink .faq-block-head h2 {
  color: var(--pearl);
}

.page-faq .faq-block--ink .faq-block-note,
.page-faq .faq-block--ink p {
  color: var(--lake-2);
}

.page-faq .faq-entry-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-faq .faq-entry-copy {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-faq .faq-entry-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--line-dark);
}

.page-faq .faq-entry-points li {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line-dark);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-faq .faq-point-key {
  color: var(--gold);
  font-size: 12.5px;
  letter-spacing: .1em;
}

.page-faq .faq-point-val {
  color: var(--pearl);
}

/* ---------- 适配表 ---------- */
.page-faq .faq-fit-table {
  border-top: 2px solid var(--ink);
  overflow-x: auto;
}

.page-faq .faq-fit-row {
  display: grid;
  grid-template-columns: minmax(84px, .9fr) minmax(140px, 1.4fr) minmax(110px, 1fr) minmax(96px, .9fr);
  gap: 14px;
  padding: 15px 4px;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
  color: var(--graphite);
  align-items: center;
  min-width: 480px;
}

.page-faq .faq-fit-row--head {
  background: var(--ink);
  color: var(--pearl);
  border-bottom: none;
  padding-left: 12px;
  padding-right: 12px;
  border-radius: var(--radius) var(--radius) 0 0;
}

.page-faq .faq-fit-row--head span {
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--lake-2);
}

.page-faq .faq-fit-name {
  font-weight: 600;
  color: var(--ink);
}

.page-faq .faq-fit-notes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .faq-fit-notes p {
  padding-left: 14px;
  border-left: 2px solid var(--lake-2);
  color: var(--graphite);
}

.page-faq .faq-fit-notes strong {
  color: var(--ink);
  font-weight: 600;
}

/* ---------- 编号检索 ---------- */
.page-faq .faq-code-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 42px);
  align-items: start;
}

.page-faq .faq-code-sample {
  display: inline-block;
  background: var(--pearl-2);
  border: 1px solid var(--lake-2);
  border-radius: var(--radius);
  padding: 4px 12px;
  color: var(--ink);
  font-size: 14px;
  letter-spacing: .04em;
}

.page-faq .faq-code-sub {
  margin-top: 22px;
  margin-bottom: 12px;
  font-weight: 600;
  color: var(--ink);
}

.page-faq .faq-code-ways {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-faq .faq-code-ways li {
  display: grid;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 14.5px;
  line-height: 1.8;
}

.page-faq .faq-code-ways > li > span:last-child {
  color: var(--graphite);
}

.page-faq .faq-code-visual {
  margin: 0;
}

.page-faq .faq-code-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  background: linear-gradient(140deg, var(--ink) 0%, var(--ink-2) 100%);
}

.page-faq .faq-code-visual figcaption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 问答 ---------- */
.page-faq .faq-qa {
  border-top: 2px solid var(--ink);
}

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

.page-faq .faq-q summary {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) 22px;
  gap: 10px;
  align-items: baseline;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  transition: color .2s var(--ease);
}

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

.page-faq .faq-q summary:hover .faq-q-text,
.page-faq .faq-q summary:focus-visible .faq-q-text {
  color: var(--lake);
}

.page-faq .faq-q-num {
  font-size: 12.5px;
  color: var(--gold);
  letter-spacing: .06em;
}

.page-faq .faq-q-text {
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.7;
  color: var(--ink);
  transition: color .2s var(--ease);
}

.page-faq .faq-q summary::after {
  content: "＋";
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--lake);
  justify-self: end;
  transform: translateY(-1px);
}

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

.page-faq .faq-a {
  padding: 0 0 20px 58px;
}

.page-faq .faq-a p {
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--mist);
}

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

/* ---------- 右侧状态栏 ---------- */
.page-faq .faq-side {
  display: flex;
  flex-direction: column;
  gap: 22px;
  min-width: 0;
}

.page-faq .faq-status-card {
  background: var(--ink);
  color: var(--pearl);
  border-radius: var(--radius);
  padding: 22px 20px 18px;
  border: 1px solid var(--line-dark);
}

.page-faq .faq-status-title,
.page-faq .faq-side-title {
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .14em;
  color: var(--mist);
  margin-bottom: 14px;
}

.page-faq .faq-status-card .faq-status-title {
  color: var(--lake-2);
}

.page-faq .faq-status-list {
  list-style: none;
  display: flex;
  flex-direction: column;
}

.page-faq .faq-status-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .faq-status-list li:last-child {
  border-bottom: none;
}

.page-faq .faq-status-key {
  font-size: 12.5px;
  color: var(--lake-2);
  letter-spacing: .04em;
}

.page-faq .faq-status-val {
  font-size: 14px;
  color: var(--pearl);
  text-align: right;
}

.page-faq .faq-status-val.num {
  color: var(--gold);
  font-size: 15px;
}

.page-faq .faq-status-dot-row {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-top: 16px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--lake-2);
}

.page-faq .faq-status-card .status-dot {
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, .22);
}

.page-faq .faq-side-links {
  border-top: 2px solid var(--ink);
  padding-top: 14px;
}

.page-faq .faq-side-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
}

.page-faq .faq-side-links li a {
  display: block;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
  color: var(--graphite);
  text-decoration: none;
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}

.page-faq .faq-side-links li a:hover,
.page-faq .faq-side-links li a:focus-visible {
  color: var(--lake);
  padding-left: 6px;
}

.page-faq .faq-side-contact {
  border-top: 2px solid var(--ink);
  padding-top: 14px;
}

.page-faq .faq-side-contact .contact-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-side-contact .contact-key {
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-faq .faq-side-contact .contact-val {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--ink);
  word-break: break-all;
}

.page-faq .faq-side-contact .copy-btn {
  align-self: flex-start;
  margin-top: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 5px 12px;
  font-size: 12.5px;
  color: var(--mist);
  background: var(--pearl-2);
  cursor: pointer;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-side-contact .copy-btn:hover,
.page-faq .faq-side-contact .copy-btn:focus-visible {
  border-color: var(--lake);
  color: var(--lake);
}

.page-faq .faq-side-contact .copy-btn.is-copied {
  border-color: var(--gold);
  color: var(--gold);
}

.page-faq .faq-side-contact .contact-note {
  margin-top: 14px;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 尾部 CTA ---------- */
.page-faq .faq-cta {
  background: var(--pearl-2);
  border-top: 1px solid var(--line);
  padding: clamp(34px, 5vw, 62px) 0 clamp(38px, 5vw, 70px);
}

.page-faq .faq-cta-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: center;
}

.page-faq .faq-cta-inner h2 {
  font-size: clamp(1.4rem, 3vw, 1.95rem);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.25;
  margin-bottom: 10px;
}

.page-faq .faq-cta-inner p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 56ch;
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-faq .faq-entry-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: clamp(26px, 3.4vw, 46px);
  }

  .page-faq .faq-code-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-faq .faq-fit-notes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-faq .faq-code-ways li {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .page-faq .faq-cta-inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, auto);
    gap: 32px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero::after {
    clip-path: polygon(22% 0, 100% 0, 100% 100%, 0 100%);
  }

  .page-faq .faq-hero-copy h1 {
    color: var(--ink);
  }

  .page-faq .faq-canvas {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr) var(--faq-side);
    gap: var(--faq-gap);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-index ol {
    flex-direction: column;
    gap: 0;
    overflow: visible;
  }

  .page-faq .faq-index li a {
    display: flex;
    width: 100%;
    border: none;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    background: transparent;
    padding: 11px 0;
    white-space: normal;
    transition: color .2s var(--ease), padding-left .2s var(--ease);
  }

  .page-faq .faq-index li a:hover,
  .page-faq .faq-index li a:focus-visible {
    border-color: var(--line);
    padding-left: 8px;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-code-ways li {
    grid-template-columns: minmax(0, auto) minmax(0, 1fr);
    gap: 12px;
    align-items: baseline;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index li a,
  .page-faq .faq-q summary,
  .page-faq .faq-q-text,
  .page-faq .faq-side-links li a,
  .page-faq .faq-side-contact .copy-btn {
    transition: none;
  }
}