.page-faq {
  --faq-gap: clamp(1rem, 2.6vw, 1.75rem);
  --faq-shadow: 6px 6px 0 rgba(0, 0, 0, 0.55);
  background:
    radial-gradient(circle at 84% 3%, rgba(53, 214, 232, 0.1), transparent 44%),
    radial-gradient(circle at 6% 20%, rgba(255, 106, 42, 0.09), transparent 42%),
    var(--ink);
  color: var(--bone);
  font-family: var(--font-body);
  line-height: 1.7;
  padding-top: var(--header-h);
  overflow-x: hidden;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

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

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--mist);
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

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

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(1rem, 3vw, 1.75rem) 0 clamp(2.5rem, 6vw, 4rem);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(115deg, rgba(167, 176, 184, 0.07) 0 1px, transparent 1px 68px);
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 72%);
  mask-image: linear-gradient(to bottom, #000, transparent 72%);
  pointer-events: none;
}

.page-faq .faq-hero > .shell {
  position: relative;
}

.page-faq .faq-hero__head {
  max-width: 68ch;
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 1rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--line);
  background: rgba(26, 31, 36, 0.75);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-faq .faq-kicker__num {
  color: var(--orange);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.page-faq .faq-hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 6.2vw, 3.7rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}

.page-faq .faq-hero h1::after {
  content: "";
  display: block;
  width: clamp(48px, 12vw, 96px);
  height: 5px;
  margin-top: 0.9rem;
  background: var(--orange);
  transform: skewX(-24deg);
}

.page-faq .faq-lede {
  max-width: 52ch;
  margin: 0;
  font-size: clamp(0.95rem, 2.1vw, 1.05rem);
  color: var(--mist);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1.15rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__meta li {
  padding: 0.28rem 0.55rem;
  border: 1px solid var(--line);
  background: rgba(26, 31, 36, 0.6);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-faq .faq-hero__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

/* ---------- 第三条高亮卡 ---------- */
.page-faq .third-card {
  position: relative;
  padding: clamp(1.1rem, 3vw, 1.9rem);
  background: linear-gradient(158deg, #171d22 0%, #11151a 100%);
  border: 2px solid var(--orange);
  box-shadow: var(--faq-shadow), inset 0 0 0 1px rgba(255, 106, 42, 0.16);
}

.page-faq .third-card__head .tag {
  margin-bottom: 0.75rem;
}

.page-faq .third-card__head h2 {
  margin: 0 0 0.55rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.22rem, 3.6vw, 1.72rem);
  line-height: 1.2;
}

.page-faq .third-card__head p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--mist);
}

.page-faq .third-card__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1rem, 2.6vw, 1.6rem);
  margin-top: 1.3rem;
}

.page-faq .third-steps {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .third-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.75rem;
  align-items: start;
  padding-bottom: 0.85rem;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .third-steps li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .third-steps__idx {
  padding: 0.05rem 0.35rem;
  border: 1px solid rgba(255, 106, 42, 0.5);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.5;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-faq .third-steps h3 {
  margin: 0 0 0.2rem;
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--bone);
}

.page-faq .third-steps p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--mist);
}

.page-faq .third-card__media {
  margin: 0;
}

.page-faq .third-card__note {
  margin: 1.15rem 0 0;
  padding: 0.7rem 0.85rem;
  border-left: 3px solid var(--cyan);
  background: rgba(53, 214, 232, 0.07);
  font-size: 0.83rem;
  color: var(--bone);
}

/* ---------- 目录 ---------- */
.page-faq .faq-toc {
  padding: 1rem;
  border: 1px solid var(--line);
  background: rgba(26, 31, 36, 0.85);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-toc__title {
  margin: 0 0 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-toc__list {
  display: grid;
  gap: 0.12rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.55rem 0.5rem;
  border-left: 2px solid transparent;
  font-size: 0.87rem;
  color: var(--bone);
  text-decoration: none;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  background: rgba(53, 214, 232, 0.1);
  border-left-color: var(--cyan);
  color: #fff;
}

.page-faq .faq-toc__n {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--orange);
}

.page-faq .faq-toc__note {
  margin: 0.85rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line-soft);
  font-size: 0.78rem;
  color: var(--mist);
}

/* ---------- 排查路径 ---------- */
.page-faq .faq-path {
  padding: clamp(2.25rem, 6vw, 3.75rem) 0;
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(26, 31, 36, 0.72), transparent);
}

.page-faq .faq-sec__head {
  max-width: 60ch;
  margin-bottom: clamp(1.4rem, 3.6vw, 2.2rem);
}

.page-faq .faq-sec__kicker {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .faq-sec__kicker::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--orange);
}

.page-faq .faq-sec__head h2 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.32rem, 4vw, 2rem);
  line-height: 1.18;
}

.page-faq .faq-sec__head p {
  margin: 0;
  font-size: 0.91rem;
  color: var(--mist);
}

.page-faq .path-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .path-list li {
  position: relative;
  padding: 0.95rem 1rem;
  border: 1px solid var(--line);
  background: var(--slate);
}

.page-faq .path-list__n {
  display: block;
  margin-bottom: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-faq .path-list h3 {
  margin: 0 0 0.35rem;
  font-size: 0.94rem;
}

.page-faq .path-list p {
  margin: 0;
  font-size: 0.84rem;
  color: var(--mist);
}

/* ---------- 问答区块 ---------- */
.page-faq .faq-block {
  padding: clamp(2.4rem, 7vw, 4.4rem) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-block__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2.4rem);
}

.page-faq .faq-block__head h2 {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.32rem, 4vw, 1.95rem);
  line-height: 1.16;
}

.page-faq .faq-block__head p {
  margin: 0 0 1.1rem;
  font-size: 0.91rem;
  color: var(--mist);
}

.page-faq .qa {
  border: 1px solid var(--line);
  background: var(--slate);
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .qa + .qa {
  margin-top: 0.6rem;
}

.page-faq .qa[open] {
  border-color: rgba(53, 214, 232, 0.45);
  background: #1d232a;
}

.page-faq .qa > summary {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--bone);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .qa[open] > summary::after {
  content: "−";
  color: var(--orange);
}

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

.page-faq .qa__body {
  padding: 0 1rem 1rem;
  font-size: 0.88rem;
  color: var(--mist);
}

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

.page-faq .faq-figure {
  margin: 1.35rem 0 0;
}

/* ---------- 客服区（米白阅读面板） ---------- */
.page-faq .faq-support {
  padding: clamp(2.4rem, 7vw, 4.4rem) 0 clamp(2rem, 5vw, 3rem);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .support-card {
  padding: clamp(1.2rem, 3.5vw, 2.5rem);
  border: 2px solid #0b0e11;
  background: var(--bone);
  color: #14181c;
  box-shadow: var(--faq-shadow);
}

.page-faq .support-card .faq-sec__kicker {
  color: #a3481f;
}

.page-faq .support-card .faq-sec__kicker::before {
  background: #a3481f;
}

.page-faq .support-card h2 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 4vw, 1.9rem);
  line-height: 1.2;
  color: #0b0e11;
}

.page-faq .support-card > header > p:last-child {
  margin: 0;
  font-size: 0.9rem;
  color: #4a5259;
}

.page-faq .support-card__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2rem);
  margin-top: 1.35rem;
}

.page-faq .support-prep {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .support-prep li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.6rem;
  font-size: 0.88rem;
  color: #1a1f24;
}

.page-faq .support-prep li::before {
  content: "✓";
  font-weight: 700;
  color: #3d6b4f;
}

.page-faq .support-channel {
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 1px solid rgba(11, 14, 17, 0.16);
}

.page-faq .support-channel:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-faq .support-channel__key {
  margin: 0 0 0.2rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #6a7178;
}

.page-faq .support-channel__value {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
}

.page-faq .support-channel__value a {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: #0b0e11;
  text-decoration: none;
  border-bottom: 1px solid rgba(11, 14, 17, 0.35);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-faq .support-channel__value a:hover,
.page-faq .support-channel__value a:focus-visible {
  border-bottom-color: var(--orange);
  color: #a3481f;
}

.page-faq .support-channel__text {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: #1a1f24;
}

.page-faq .support-card .copy-btn {
  padding: 0.25rem 0.55rem;
  border: 1px solid rgba(11, 14, 17, 0.32);
  background: transparent;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: #0b0e11;
  cursor: pointer;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .support-card .copy-btn:hover,
.page-faq .support-card .copy-btn:focus-visible {
  background: #0b0e11;
  color: var(--bone);
}

.page-faq .support-card .copy-btn[data-copied] {
  border-color: #3d6b4f;
  color: #3d6b4f;
}

.page-faq .support-note {
  margin: 1.15rem 0 0;
  padding-top: 0.9rem;
  border-top: 1px dashed rgba(11, 14, 17, 0.22);
  font-size: 0.82rem;
  color: #4a5259;
}

.page-faq .faq-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: clamp(1.25rem, 3vw, 1.9rem);
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-faq .path-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .support-card__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__body {
    grid-template-columns: minmax(0, 1.68fr) minmax(0, 0.82fr);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-h) + 1.25rem);
  }

  .page-faq .third-card__body {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-faq .faq-block__grid {
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
    align-items: start;
  }

  .page-faq .faq-block__head {
    position: sticky;
    top: calc(var(--header-h) + 1.25rem);
  }

  .page-faq .faq-block--flip .faq-block__grid {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, 0.72fr);
  }

  .page-faq .faq-block--flip .faq-block__head {
    order: 2;
  }

  .page-faq .faq-block--flip .faq-block__qa {
    order: 1;
  }
}

@media (min-width: 780px) {
  .page-faq .path-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    border-left: 1px solid var(--line);
  }

  .page-faq .path-list li {
    border: 0;
    border-right: 1px solid var(--line);
    border-top: 2px solid var(--stratum);
    background: transparent;
    padding: 1.15rem 1.1rem 1.3rem;
    transition: background 0.2s var(--ease), border-top-color 0.2s var(--ease);
  }

  .page-faq .path-list li:hover {
    background: rgba(26, 31, 36, 0.9);
    border-top-color: var(--orange);
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hero__body {
    grid-template-columns: minmax(0, 1.85fr) minmax(0, 0.72fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .faq-toc__list a,
  .page-faq .support-card .copy-btn,
  .page-faq .path-list li {
    transition: none;
  }
}