.page-faq {
  --faq-line: rgba(237, 239, 242, .08);
  --faq-line-strong: rgba(237, 239, 242, .16);
  --faq-soft: rgba(155, 166, 180, .12);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 5vw, 60px) 0 clamp(20px, 4vw, 40px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -30% -15% auto -15%;
  height: 480px;
  background:
    radial-gradient(55% 65% at 18% 0%, rgba(255, 122, 24, .22), transparent 70%),
    radial-gradient(48% 58% at 88% 8%, rgba(31, 214, 232, .16), transparent 72%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__plate {
  margin: clamp(16px, 3vw, 30px) 0 12px;
}

.page-faq .faq-hero__title {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 56px);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--text);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__meta li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text);
}

.page-faq .faq-hero__meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(31, 214, 232, .75);
}

.page-faq .faq-hero__meta li:first-child::before {
  background: var(--orange);
  box-shadow: 0 0 10px rgba(255, 122, 24, .75);
}

.page-faq .faq-hero__media {
  margin: clamp(26px, 4vw, 44px) 0 0;
  border-radius: var(--radius-lg) var(--radius) var(--radius) var(--radius);
  overflow: hidden;
}

.page-faq .faq-hero__media .media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.02);
}

/* ---------- 热门标签带 ---------- */

.page-faq .faq-index {
  padding-top: 4px;
}

.page-faq .faq-index__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  align-items: center;
  padding: 14px 18px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(120deg, rgba(255, 122, 24, .12), rgba(21, 23, 27, .92) 46%, rgba(31, 214, 232, .12));
}

.page-faq .faq-index__label {
  margin: 0;
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--gold);
  font-family: var(--font-mono);
  white-space: nowrap;
}

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

.page-faq .faq-index__tag {
  text-decoration: none;
  border: 1px solid transparent;
  transition: border-color .22s ease, color .22s ease, background-color .22s ease;
}

.page-faq .faq-index__tag:hover,
.page-faq .faq-index__tag:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(31, 214, 232, .1);
}

/* ---------- 主体布局 ---------- */

.page-faq .faq-body {
  padding-top: clamp(28px, 4vw, 48px);
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
}

/* ---------- 左侧分类 ---------- */

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

.page-faq .faq-side__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  color: var(--muted);
}

.page-faq .faq-side__nav {
  display: grid;
  gap: 4px;
  padding: 10px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-lg);
  background: var(--panel);
}

.page-faq .faq-side__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  border-left: 2px solid transparent;
  color: var(--muted);
  text-decoration: none;
  font-size: 14.5px;
  line-height: 1.4;
  transition: color .2s ease, border-color .2s ease, background-color .2s ease;
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  color: var(--text);
  border-left-color: var(--orange);
  background: rgba(255, 122, 24, .1);
}

.page-faq .faq-side__num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--gold);
}

.page-faq .faq-side__tip {
  margin-top: 18px;
  padding: 16px 16px 18px;
  border-radius: var(--radius-lg) var(--radius) var(--radius) var(--radius);
  background: linear-gradient(150deg, rgba(31, 214, 232, .1), rgba(21, 23, 27, .95) 60%);
  border: 1px solid rgba(31, 214, 232, .22);
}

.page-faq .faq-side__tip-title {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.page-faq .faq-side__tip-text {
  margin: 0 0 14px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-side__btn {
  width: 100%;
  text-align: center;
}

/* ---------- 问题分组 ---------- */

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

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

.page-faq .faq-group + .faq-group {
  margin-top: clamp(34px, 5vw, 62px);
}

.page-faq .faq-group__head {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--faq-line-strong);
}

.page-faq .faq-group__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-faq .faq-group__desc {
  margin: 10px 0 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-list {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

/* ---------- 问答卡片 ---------- */

.page-faq .faq-card {
  position: relative;
  min-width: 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-lg) var(--radius) var(--radius) var(--radius);
  background: var(--panel);
  overflow: hidden;
  scroll-margin-top: 92px;
  transition: border-color .26s ease, background-color .26s ease;
}

.page-faq .faq-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--orange), var(--gold));
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform .3s ease;
}

.page-faq .faq-card:hover {
  border-color: var(--faq-line-strong);
}

.page-faq .faq-card[data-open="true"] {
  border-color: rgba(255, 122, 24, .34);
  background: #17191E;
}

.page-faq .faq-card[data-open="true"]::before {
  transform: scaleY(1);
}

.page-faq .faq-card__trigger {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-rows: auto auto;
  gap: 6px 16px;
  align-items: center;
  width: 100%;
  padding: 18px 18px 18px 20px;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

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

.page-faq .faq-card__q {
  grid-column: 1;
  grid-row: 1;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15.5px, 1.9vw, 17.5px);
  line-height: 1.5;
  color: var(--text);
}

.page-faq .faq-card__lead {
  grid-column: 1 / -1;
  grid-row: 2;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

.page-faq .disclosure__sign {
  grid-column: 2;
  grid-row: 1;
  position: relative;
  width: 26px;
  height: 26px;
  flex: none;
  border-radius: 50%;
  border: 1px solid var(--faq-line-strong);
  transition: border-color .24s ease, background-color .24s ease;
}

.page-faq .disclosure__sign::before,
.page-faq .disclosure__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 1.5px;
  border-radius: 2px;
  background: var(--muted);
  transform: translate(-50%, -50%);
  transition: transform .26s ease, background-color .24s ease;
}

.page-faq .disclosure__sign::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .disclosure[data-open="true"] .disclosure__sign {
  border-color: var(--orange);
  background: rgba(255, 122, 24, .16);
}

.page-faq .disclosure[data-open="true"] .disclosure__sign::before {
  background: var(--orange);
}

.page-faq .disclosure[data-open="true"] .disclosure__sign::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

/* 面板折叠：默认展开，脚本接管后写入 data-open 收起 */

.page-faq .disclosure__panel {
  display: grid;
  grid-template-rows: 1fr;
  transition: grid-template-rows .3s ease;
}

.page-faq .disclosure[data-open="false"] .disclosure__panel {
  grid-template-rows: 0fr;
}

.page-faq .disclosure__body {
  overflow: hidden;
  min-height: 0;
}

.page-faq .faq-answer {
  padding: 4px 20px 22px;
  border-top: 1px solid var(--faq-line);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-answer p {
  margin: 14px 0 0;
}

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

.page-faq .faq-answer__link {
  color: var(--muted);
}

.page-faq .faq-steps {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text);
}

.page-faq .faq-steps__n {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1.9;
  color: var(--cyan);
  letter-spacing: .06em;
}

/* ---------- 配置判断流程图 ---------- */

.page-faq .faq-flow {
  margin: 22px 0 0;
  padding: 18px 18px 14px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-lg) var(--radius) var(--radius) var(--radius);
  background: linear-gradient(160deg, rgba(21, 23, 27, .96), rgba(11, 12, 14, .96));
}

.page-faq .faq-flow__svg {
  display: block;
  width: 100%;
  min-width: 520px;
  height: auto;
}

.page-faq .faq-flow {
  overflow-x: auto;
}

.page-faq .faq-flow__num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  fill: var(--gold);
  letter-spacing: .1em;
}

.page-faq .faq-flow__name {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  fill: var(--text);
}

.page-faq .faq-flow__sub {
  font-family: var(--font-body);
  font-size: 11px;
  fill: var(--muted);
}

.page-faq .faq-flow__ok {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  fill: var(--green);
}

.page-faq .faq-flow__bad {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  fill: var(--red);
}

.page-faq .faq-flow__note {
  font-family: var(--font-body);
  font-size: 12.5px;
  fill: var(--muted);
}

.page-faq .faq-flow__foot {
  font-family: var(--font-body);
  font-size: 12px;
  fill: var(--muted);
}

.page-faq .faq-flow__caption {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-figure {
  margin: 20px 0 0;
  border-radius: var(--radius-lg) var(--radius) var(--radius) var(--radius);
  overflow: hidden;
}

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

.page-faq .faq-figure .media__caption {
  padding: 12px 16px 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 客服面板 ---------- */

.page-faq .faq-contact {
  position: relative;
  margin-top: 24px;
  padding: 24px 20px 22px;
}

.page-faq .faq-contact .stamp {
  top: 14px;
  right: 16px;
}

.page-faq .faq-contact__title {
  margin: 4px 0 0;
  max-width: 26ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.35;
  color: var(--text);
}

.page-faq .faq-contact__text {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-faq .faq-contact__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 桌面布局 ---------- */

@media (min-width: 900px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 246px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 28px;
  }

  .page-faq .faq-card__trigger {
    padding: 20px 22px 20px 24px;
  }

  .page-faq .faq-answer {
    padding: 4px 24px 24px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 268px minmax(0, 1fr);
    gap: 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .disclosure__panel,
  .page-faq .disclosure__sign::before,
  .page-faq .disclosure__sign::after,
  .page-faq .faq-card::before {
    transition: none;
  }
}