.page-faq {
  --faq-line: rgba(169, 201, 222, 0.58);
  --faq-shadow: 0 18px 42px -32px rgba(6, 26, 46, 0.85);
  color: var(--sg-deep);
  background: var(--sg-white);
  font-family: var(--sg-font-sans);
  -webkit-text-size-adjust: 100%;
}

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

.page-faq h1,
.page-faq h2 {
  font-family: var(--sg-font-display);
  letter-spacing: -0.015em;
  margin: 0;
}

.page-faq h1 {
  font-size: clamp(2rem, 1.25rem + 3.6vw, 3.5rem);
  line-height: 1.08;
  margin-top: 14px;
}

.page-faq h2 {
  font-size: clamp(1.45rem, 1.1rem + 1.7vw, 2.1rem);
  line-height: 1.22;
  margin-top: 10px;
}

.page-faq h3 {
  font-family: var(--sg-font-sans);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  margin: 0 0 12px;
}

.page-faq a {
  color: var(--sg-sea);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 34px 0 44px;
  overflow: hidden;
  background:
    radial-gradient(110% 80% at 6% 0%, #ffffff 0%, rgba(247, 250, 252, 0) 62%),
    linear-gradient(158deg, var(--sg-mist) 0%, var(--sg-white) 66%);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: auto -10% -46% 40%;
  height: 260px;
  background: radial-gradient(60% 60% at 50% 50%, rgba(43, 127, 184, 0.16), rgba(43, 127, 184, 0) 70%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: 28px;
}

.page-faq .faq-hero__lead {
  max-width: 40em;
  margin: 18px 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--sg-tide);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-hero__media {
  margin: 0;
  border-radius: var(--sg-radius-l);
  overflow: hidden;
  border: 1px solid var(--faq-line);
  box-shadow: var(--sg-shadow-m);
  background: var(--sg-mist);
}

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

/* ---------- 定位区 ---------- */
.page-faq .faq-locate__head p {
  margin: 12px 0 0;
  max-width: 42em;
  line-height: 1.75;
  color: var(--sg-tide);
}

.page-faq .faq-locate__head h2 {
  margin-top: 8px;
}

.page-faq .faq-search {
  margin-top: 26px;
}

.page-faq .faq-search__label {
  display: block;
  font-size: 0.78rem;
  font-family: var(--sg-font-mono);
  letter-spacing: 0.14em;
  color: var(--sg-salt);
  margin-bottom: 10px;
}

.page-faq .faq-search__field {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 34rem;
  padding: 6px 16px;
  background: #ffffff;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  box-shadow: var(--sg-shadow-s);
  transition: border-color 0.2s var(--sg-ease), box-shadow 0.2s var(--sg-ease);
}

.page-faq .faq-search__icon {
  flex: 0 0 auto;
  color: var(--sg-sea);
}

.page-faq .faq-search__field input {
  flex: 1 1 auto;
  width: 100%;
  padding: 10px 0;
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 0.98rem;
  color: var(--sg-deep);
}

.page-faq .faq-search__field input::placeholder {
  color: var(--sg-salt);
}

.page-faq .faq-search__field input:focus {
  outline: none;
}

.page-faq .faq-search__field:focus-within {
  border-color: var(--sg-coral);
  box-shadow: 0 0 0 3px rgba(217, 79, 50, 0.16);
}

.page-faq .faq-jump {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-faq .faq-jump a {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  background: #ffffff;
  border: 1px solid var(--faq-line);
  border-radius: var(--sg-radius-m);
  text-decoration: none;
  color: var(--sg-deep);
  font-weight: 600;
  font-size: 0.96rem;
  transition: transform 0.2s var(--sg-ease), border-color 0.2s var(--sg-ease), box-shadow 0.2s var(--sg-ease);
}

.page-faq .faq-jump a .sg-data {
  color: var(--sg-coral);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  transform: translateY(-2px);
  border-color: var(--sg-sea);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-jump a:focus-visible {
  outline: 2px solid var(--sg-coral);
  outline-offset: 2px;
}

/* ---------- 主体分栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 30px;
  padding-top: 44px;
  padding-bottom: 64px;
}

.page-faq .faq-aside__nav {
  border-left: 2px solid var(--sg-glass);
}

.page-faq .faq-aside__title {
  margin: 0 0 8px 14px;
  font-family: var(--sg-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--sg-salt);
}

.page-faq .faq-aside__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-faq .faq-aside__list a {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 12px;
  margin-left: -2px;
  border-left: 2px solid transparent;
  color: var(--sg-tide);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.18s var(--sg-ease), border-color 0.18s var(--sg-ease), background 0.18s var(--sg-ease);
}

.page-faq .faq-aside__list a .sg-data {
  color: var(--sg-coral);
  font-size: 0.72rem;
}

.page-faq .faq-aside__list a:hover,
.page-faq .faq-aside__list a:focus-visible {
  color: var(--sg-deep);
  border-left-color: var(--sg-sea);
  background: var(--sg-mist);
}

.page-faq .faq-aside__list a:focus-visible {
  outline: 2px solid var(--sg-coral);
  outline-offset: -2px;
}

.page-faq .faq-aside__callout {
  margin-top: 20px;
  padding: 18px;
  border-radius: var(--sg-radius-m);
  background: var(--sg-deep);
  color: var(--sg-white);
}

.page-faq .faq-aside__callout p {
  margin: 0 0 14px;
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(247, 250, 252, 0.82);
}

.page-faq .faq-aside__callout a {
  display: inline-block;
  color: var(--sg-lime);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 176, 0.5);
}

/* ---------- 问题区块 ---------- */
.page-faq .faq-block {
  padding: 26px 0 34px;
  border-top: 1px solid var(--faq-line);
  scroll-margin-top: 96px;
}

.page-faq .faq-block:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-block__head p {
  margin: 12px 0 0;
  max-width: 40em;
  line-height: 1.78;
  color: var(--sg-tide);
}

.page-faq .faq-item {
  margin-top: 12px;
  background: #ffffff;
  border: 1px solid var(--faq-line);
  border-radius: var(--sg-radius-m);
  overflow: hidden;
  transition: border-color 0.22s var(--sg-ease), box-shadow 0.22s var(--sg-ease);
}

.page-faq .faq-item:hover {
  border-color: var(--sg-glass);
}

.page-faq .faq-item[open] {
  border-color: var(--sg-sea);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--sg-deep);
  list-style: none;
}

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

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--sg-font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--sg-sea);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
  color: var(--sg-coral);
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--sg-coral);
  outline-offset: -2px;
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: rgba(217, 79, 50, 0.11);
  color: var(--sg-coral);
  font-family: var(--sg-font-mono);
  font-size: 0.78rem;
  font-weight: 700;
}

.page-faq .faq-item__body {
  padding: 0 16px 18px 16px;
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--sg-tide);
}

.page-faq .faq-steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 30px;
}

.page-faq .faq-steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep);
  position: absolute;
  left: 0;
  top: 0.16em;
  width: 20px;
  text-align: left;
  font-family: var(--sg-font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--sg-sea);
  border-bottom: 2px solid rgba(43, 127, 184, 0.32);
}

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

/* 刷新提示条 */
.page-faq .faq-pulse {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: var(--sg-radius-m);
  background: var(--sg-night);
  color: rgba(247, 250, 252, 0.9);
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-faq .faq-pulse__dot {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--sg-lime);
  animation: faq-pulse-once 2.4s var(--sg-ease) 1;
}

@keyframes faq-pulse-once {
  0% { box-shadow: 0 0 0 0 rgba(47, 227, 176, 0.55); }
  70% { box-shadow: 0 0 0 10px rgba(47, 227, 176, 0); }
  100% { box-shadow: 0 0 0 0 rgba(47, 227, 176, 0); }
}

/* 反馈行 */
.page-faq .faq-vote {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--sg-salt);
}

.page-faq .faq-vote button {
  font: inherit;
  font-size: 0.85rem;
  padding: 6px 15px;
  border-radius: 999px;
  border: 1px solid var(--faq-line);
  background: #ffffff;
  color: var(--sg-tide);
  cursor: pointer;
  transition: color 0.18s var(--sg-ease), border-color 0.18s var(--sg-ease);
}

.page-faq .faq-vote button:hover,
.page-faq .faq-vote button:focus-visible {
  color: var(--sg-coral);
  border-color: var(--sg-coral);
}

.page-faq .faq-vote button:focus-visible {
  outline: 2px solid var(--sg-coral);
  outline-offset: 2px;
}

/* ---------- 手机端章节 ---------- */
.page-faq .faq-mobile {
  display: grid;
  gap: 20px;
  margin-top: 4px;
}

.page-faq .faq-mobile__figure {
  margin: 0;
  padding: 14px;
  border-radius: var(--sg-radius-m);
  border: 1px solid var(--faq-line);
  background: linear-gradient(170deg, var(--sg-mist), var(--sg-white));
}

.page-faq .faq-mobile__figure img {
  display: block;
  width: 100%;
  max-width: 260px;
  height: auto;
  margin: 0 auto;
  border-radius: var(--sg-radius-s);
}

.page-faq .faq-mobile__figure figcaption {
  margin-top: 12px;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--sg-salt);
  text-align: center;
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-support__grid {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.page-faq .faq-support__card {
  padding: 20px;
  border-radius: var(--sg-radius-m);
  border: 1px solid var(--faq-line);
  background: #ffffff;
}

.page-faq .faq-support__card--night {
  background: var(--sg-deep);
  border-color: var(--sg-tide);
  color: var(--sg-white);
}

.page-faq .faq-support__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--sg-tide);
}

.page-faq .faq-support__list li {
  position: relative;
  padding-left: 22px;
}

.page-faq .faq-support__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 9px;
  height: 9px;
  border-radius: 2px;
  background: var(--sg-coral);
  opacity: 0.75;
}

.page-faq .faq-path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  padding: 12px 14px;
  border-radius: var(--sg-radius-s);
  border: 1px dashed var(--sg-glass);
  background: var(--sg-mist);
}

.page-faq .faq-path__label {
  font-family: var(--sg-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--sg-salt);
}

.page-faq .faq-path code {
  font-family: var(--sg-font-mono);
  font-size: 0.88rem;
  color: var(--sg-deep);
  word-break: break-all;
}

.page-faq .faq-path__copy {
  margin-left: auto;
  font: inherit;
  font-size: 0.8rem;
  padding: 5px 13px;
  border-radius: 999px;
  border: 1px solid var(--sg-coral);
  background: transparent;
  color: var(--sg-coral);
  cursor: pointer;
}

.page-faq .faq-path__copy:hover,
.page-faq .faq-path__copy:focus-visible {
  background: var(--sg-coral);
  color: var(--sg-white);
}

.page-faq .faq-path__copy:focus-visible {
  outline: 2px solid var(--sg-coral);
  outline-offset: 2px;
}

.page-faq .faq-contact {
  margin: 0;
  display: grid;
  gap: 12px;
  font-size: 0.94rem;
}

.page-faq .faq-contact dt {
  font-family: var(--sg-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.13em;
  color: rgba(247, 250, 252, 0.6);
}

.page-faq .faq-contact dd {
  margin: 4px 0 0;
  color: var(--sg-white);
  word-break: break-word;
}

.page-faq .faq-support__card--night .faq-contact a {
  color: var(--sg-lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-support__note {
  margin: 16px 0 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: rgba(247, 250, 252, 0.72);
}

.page-faq .faq-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

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

  .page-faq .faq-item__body {
    padding-left: 58px;
    padding-right: 22px;
  }

  .page-faq .faq-item summary {
    padding: 16px 22px;
  }

  .page-faq .faq-support__card {
    padding: 24px;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-mobile {
    grid-template-columns: minmax(0, 1fr) 236px;
    align-items: start;
    gap: 28px;
  }

  .page-faq .faq-mobile__figure {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-support__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 46px 0 58px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
    gap: 48px;
  }

  .page-faq .faq-hero__lead {
    font-size: 1.06rem;
  }

  .page-faq .faq-locate__head p {
    max-width: 46em;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-jump {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-body {
    grid-template-columns: 248px minmax(0, 1fr);
    gap: 56px;
    padding-top: 56px;
    padding-bottom: 80px;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 100px;
    align-self: start;
  }

  .page-faq .faq-aside__list {
    grid-template-columns: 1fr;
  }

  .page-faq .faq-block {
    padding: 30px 0 40px;
  }

  .page-faq .faq-locate__head p {
    font-size: 1.02rem;
  }

  .page-faq .faq-jump {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

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

  .page-faq .faq-jump a,
  .page-faq .faq-item,
  .page-faq .faq-aside__list a {
    transition: none;
  }

  .page-faq .faq-jump a:hover,
  .page-faq .faq-jump a:focus-visible {
    transform: none;
  }
}