.page-faq {
  --faq-gold-line: rgba(212, 175, 55, 0.3);
  --faq-gold-soft: rgba(212, 175, 55, 0.1);
  --faq-gold-glow: rgba(212, 175, 55, 0.22);
  --faq-text-muted: rgba(224, 224, 224, 0.64);
  --faq-bg-soft: rgba(255, 255, 255, 0.035);
  --faq-slant: 14px;
  position: relative;
  overflow-x: clip;
  background-image:
    linear-gradient(30deg, transparent 42%, rgba(212, 175, 55, 0.028) 43%, transparent 44%),
    linear-gradient(-30deg, transparent 42%, rgba(212, 175, 55, 0.028) 43%, transparent 44%);
  background-size: 112px 112px;
}
.page-faq [id] {
  scroll-margin-top: calc(var(--header-h) + 16px);
}
.page-faq .data-number {
  font-family: var(--font-data);
  font-weight: 700;
  color: var(--color-electric-teal);
}
.page-faq .faq-inline-mail {
  font-family: var(--font-data);
  color: var(--color-gold-light);
  word-break: break-all;
}

/* ===== Hero ===== */
.page-faq .faq-hero {
  position: relative;
  padding-top: clamp(5.5rem, 10vw, 7.5rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
  overflow: hidden;
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -7rem;
  right: -12%;
  width: 58%;
  height: 128%;
  background-image:
    linear-gradient(30deg, transparent 42%, rgba(212, 175, 55, 0.06) 43%, transparent 44%),
    linear-gradient(-30deg, transparent 42%, rgba(212, 175, 55, 0.06) 43%, transparent 44%);
  background-size: 72px 72px;
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 100%);
  z-index: 0;
  pointer-events: none;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -9rem;
  right: 10%;
  width: 30%;
  height: 136%;
  background: linear-gradient(152deg, rgba(212, 175, 55, 0.2), rgba(107, 13, 173, 0.08) 58%, transparent 72%);
  clip-path: polygon(42% 0, 100% 0, 100% 100%, 0 100%);
  z-index: 0;
  pointer-events: none;
}
.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}
.page-faq .faq-breadcrumb {
  margin-bottom: 1.6rem;
}
.page-faq .faq-hero__grid {
  display: grid;
  gap: 2.4rem;
  align-items: center;
}
.page-faq .faq-hero__kicker {
  display: inline-flex;
  align-items: center;
  color: var(--color-gold-light);
}
.page-faq .faq-hero__kicker::before {
  content: "";
  width: 0.8rem;
  height: 0.8rem;
  margin-right: 0.65rem;
  background: var(--color-gold);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  flex: none;
}
.page-faq .faq-hero__content h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  line-height: 0.98;
  letter-spacing: 0.01em;
  color: var(--color-white);
  margin: 0.7em 0 0.5em;
  text-transform: uppercase;
}
.page-faq .faq-hero__content h1::after {
  content: "";
  display: block;
  width: 4.6rem;
  height: 0.32rem;
  margin-top: 1.1rem;
  background: linear-gradient(90deg, var(--color-gold), var(--color-electric-teal));
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}
.page-faq .faq-h1-sub {
  display: block;
  color: var(--color-gold-light);
  text-shadow: 0 0 26px rgba(212, 175, 55, 0.32);
}
.page-faq .faq-hero__lead {
  color: var(--faq-text-muted);
  font-size: 1.05rem;
  line-height: 1.85;
  max-width: 36em;
}
.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.7rem;
}
.page-faq .faq-hero__visual {
  position: relative;
  overflow: hidden;
  background: var(--color-neutral-dark);
  box-shadow: var(--shadow);
  aspect-ratio: 16 / 9;
  clip-path: polygon(8% 0, 100% 0, 100% 86%, 0 100%);
}
.page-faq .faq-hero__visual img,
.page-faq .faq-contact__visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== 快速定位 ===== */
.page-faq .faq-quicklinks {
  padding: 0.5rem 0 3rem;
}
.page-faq .faq-quicklinks__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}
.page-faq .faq-quicklink {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.8rem;
  padding: 1.2rem 1.4rem;
  background:
    linear-gradient(135deg, rgba(212, 175, 55, 0.09), transparent 42%),
    var(--faq-bg-soft);
  box-shadow: inset 0 0 0 1px rgba(212, 175, 55, 0.16);
  color: var(--color-neutral-light);
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - var(--faq-slant)) 0, 100% var(--faq-slant), 100% 100%, var(--faq-slant) 100%, 0 calc(100% - var(--faq-slant)));
  transition: background 0.3s var(--ease), color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.page-faq .faq-quicklink:hover {
  background:
    linear-gradient(135deg, rgba(212, 175, 55, 0.2), transparent 52%),
    var(--faq-bg-soft);
  color: var(--color-white);
  box-shadow: inset 0 0 0 1px var(--color-gold);
}
.page-faq .faq-quicklink__num {
  font-family: var(--font-heading);
  font-size: 1.7rem;
  line-height: 1;
  color: var(--color-gold);
}
.page-faq .faq-quicklink__title {
  font-weight: 700;
  font-size: 1rem;
}
.page-faq .faq-quicklink__meta {
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: var(--faq-text-muted);
  white-space: nowrap;
}

/* ===== 章节 ===== */
.page-faq .faq-chapter {
  padding: 3.2rem 0;
  border-top: 1px solid var(--faq-gold-line);
}
.page-faq .faq-chapter__grid {
  display: grid;
  gap: 1.8rem;
}
.page-faq .faq-chapter__aside {
  position: relative;
}
.page-faq .faq-chapter__num {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(3rem, 5vw, 4.6rem);
  line-height: 0.9;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--color-gold);
}
.page-faq .faq-chapter__aside h2 {
  margin: 0.55rem 0 0.55rem;
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.08;
  color: var(--color-white);
  text-transform: uppercase;
}
.page-faq .faq-chapter__aside p {
  color: var(--faq-text-muted);
  line-height: 1.7;
  margin: 0;
}

/* ===== 折叠列表 ===== */
.page-faq .faq-list {
  border-top: 1px solid var(--faq-gold-line);
}
.page-faq .faq-item {
  position: relative;
  border-bottom: 1px solid var(--faq-gold-line);
  background: linear-gradient(90deg, transparent, transparent);
  transition: background 0.35s var(--ease);
}
.page-faq .faq-item[open] {
  background: linear-gradient(90deg, var(--faq-gold-soft), transparent 88%);
}
.page-faq .faq-item__summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.9rem;
  align-items: center;
  padding: 1.35rem 0.4rem;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-neutral-light);
  transition: color 0.25s var(--ease);
}
.page-faq .faq-item__summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__summary:hover,
.page-faq .faq-item[open] .faq-item__summary {
  color: var(--color-white);
}
.page-faq .faq-item__num {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--color-gold);
  background: rgba(212, 175, 55, 0.1);
  padding: 0.35em 0.75em;
  clip-path: polygon(0 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
  white-space: nowrap;
}
.page-faq .faq-item__title {
  line-height: 1.55;
}
.page-faq .faq-item__toggle {
  position: relative;
  width: 18px;
  height: 18px;
  flex: none;
}
.page-faq .faq-item__toggle::before,
.page-faq .faq-item__toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--color-gold);
  transform: translate(-50%, -50%);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.page-faq .faq-item__toggle::before {
  width: 18px;
  height: 2px;
}
.page-faq .faq-item__toggle::after {
  width: 2px;
  height: 18px;
}
.page-faq .faq-item[open] .faq-item__toggle::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}
.page-faq .faq-item__answer {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows 0.42s var(--ease), opacity 0.3s ease;
}
.page-faq .faq-item[open] .faq-item__answer {
  grid-template-rows: 1fr;
  opacity: 1;
}
.page-faq .faq-item__answer-inner {
  overflow: hidden;
  padding: 0 0.4rem 1.5rem 2.6rem;
  color: var(--faq-text-muted);
  font-size: 0.95rem;
  line-height: 1.85;
}
.page-faq .faq-item__answer-inner p + p {
  margin-top: 0.7em;
}
.page-faq .faq-item__answer-inner a {
  color: var(--color-gold-light);
  text-decoration: underline;
  text-decoration-color: rgba(212, 175, 55, 0.48);
  text-underline-offset: 3px;
  transition: color 0.25s var(--ease);
}
.page-faq .faq-item__answer-inner a:hover {
  color: var(--color-white);
  text-decoration-color: var(--color-gold);
}

/* ===== 联系支持 ===== */
.page-faq .faq-contact {
  position: relative;
  padding: 4rem 0;
  margin-top: 2.5rem;
  background:
    linear-gradient(115deg, rgba(212, 175, 55, 0.1), transparent 42%),
    linear-gradient(320deg, rgba(107, 13, 173, 0.13), transparent 44%);
  border-top: 1px solid var(--faq-gold-line);
  border-bottom: 1px solid var(--faq-gold-line);
}
.page-faq .faq-contact__grid {
  display: grid;
  gap: 2.4rem;
  align-items: center;
}
.page-faq .faq-contact__visual {
  position: relative;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--color-neutral-dark);
  box-shadow: var(--shadow);
  clip-path: polygon(0 0, 94% 0, 100% 12%, 100% 100%, 6% 100%, 0 88%);
}
.page-faq .faq-contact__panel {
  padding: 1.2rem 0;
}
.page-faq .faq-contact__kicker {
  display: inline-flex;
  align-items: center;
  color: var(--color-gold-light);
}
.page-faq .faq-contact__kicker-num,
.page-faq .faq-tip__kicker-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.2em;
  margin-right: 0.55em;
  padding: 0.22em 0.5em;
  background: var(--color-gold);
  color: var(--color-pitch-green);
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 0.85rem;
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}
.page-faq .faq-contact__panel h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  margin: 0.6rem 0 0.5rem;
  color: var(--color-white);
}
.page-faq .faq-contact__lead {
  color: var(--faq-text-muted);
  margin-bottom: 1.5rem;
  line-height: 1.75;
  max-width: 32em;
}
.page-faq .faq-contact__list {
  display: grid;
  gap: 0;
  margin: 0 0 1.6rem;
}
.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.8rem 0;
  border-bottom: 1px dashed rgba(212, 175, 55, 0.24);
}
.page-faq .faq-contact__row dt {
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  color: var(--color-gold);
}
.page-faq .faq-contact__row dd {
  font-family: var(--font-data);
  color: var(--color-neutral-light);
  text-align: right;
  word-break: break-all;
  margin: 0;
}

/* ===== 行家提示 ===== */
.page-faq .faq-tip {
  padding: 4.5rem 0 5rem;
}
.page-faq .faq-tip__panel {
  position: relative;
  padding: clamp(1.6rem, 4vw, 2.8rem);
  background:
    linear-gradient(30deg, transparent 44%, rgba(212, 175, 55, 0.06) 45%, transparent 46%),
    linear-gradient(-30deg, transparent 44%, rgba(212, 175, 55, 0.06) 45%, transparent 46%);
  background-size: 64px 64px;
  background-color: var(--faq-bg-soft);
  box-shadow: inset 0 0 0 1px rgba(212, 175, 55, 0.16);
  clip-path: polygon(18px 0, 100% 0, calc(100% - 18px) 100%, 0 100%);
}
.page-faq .faq-tip__panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: linear-gradient(180deg, var(--color-gold), var(--color-crimson) 62%, var(--color-electric-teal));
  clip-path: polygon(0 0, 100% 0, 40% 100%, 0 100%);
}
.page-faq .faq-tip__kicker {
  display: inline-flex;
  align-items: center;
  color: var(--color-gold-light);
}
.page-faq .faq-tip__panel h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  margin: 0.5rem 0 1.2rem;
  color: var(--color-white);
}
.page-faq .faq-tip__list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: tip;
}
.page-faq .faq-tip__list li {
  position: relative;
  padding-left: 2.8em;
  margin-bottom: 0.95rem;
  color: var(--color-neutral-light);
  line-height: 1.75;
  counter-increment: tip;
}
.page-faq .faq-tip__list li::before {
  content: counter(tip, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.16em;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--color-gold);
}
.page-faq .faq-tip__note {
  margin-top: 1.3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--faq-gold-line);
  color: var(--faq-text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
}
.page-faq .faq-tip__note a {
  color: var(--color-gold-light);
  text-decoration: none;
  border-bottom: 1px dashed var(--color-gold);
  transition: color 0.25s var(--ease), border-bottom-color 0.25s var(--ease);
}
.page-faq .faq-tip__note a:hover {
  color: var(--color-white);
  border-bottom-style: solid;
}

/* ===== 桌面端布局 ===== */
@media (min-width: 560px) {
  .page-faq .faq-quicklinks__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 768px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 1fr 1.1fr;
    gap: 3rem;
  }
  .page-faq .faq-hero__visual {
    aspect-ratio: 12 / 5;
  }
  .page-faq .faq-quicklinks__grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-faq .faq-contact__grid {
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 6vw, 4.5rem);
  }
  .page-faq .faq-contact__visual {
    order: 2;
  }
  .page-faq .faq-contact__info {
    order: 1;
  }
}
@media (min-width: 900px) {
  .page-faq .faq-chapter__grid {
    grid-template-columns: minmax(220px, 300px) 1fr;
    gap: clamp(2rem, 5vw, 4.5rem);
    align-items: start;
  }
  .page-faq .faq-chapter--flip .faq-chapter__grid {
    grid-template-columns: 1fr minmax(220px, 300px);
  }
  .page-faq .faq-chapter--flip .faq-chapter__aside {
    order: 2;
    text-align: right;
  }
  .page-faq .faq-chapter--flip .faq-chapter__content {
    order: 1;
  }
  .page-faq .faq-chapter {
    padding: 4.2rem 0;
  }
}
@media (min-width: 1180px) {
  .page-faq .faq-hero {
    padding-top: clamp(6rem, 11vw, 8.5rem);
  }
  .page-faq .faq-hero__visual {
    aspect-ratio: 12 / 5;
  }
}

/* ===== 动效降级 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item *,
  .page-faq .faq-item__toggle::before,
  .page-faq .faq-item__toggle::after,
  .page-faq .faq-quicklink,
  .page-faq .faq-item {
    transition: none !important;
  }
}