.page-faq {
  color: var(--paper);
  padding-block: clamp(16px, 3vw, 28px) clamp(48px, 8vw, 96px);
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  font-size: 13px;
  color: var(--muted-sage);
}

.page-faq .breadcrumb__link {
  color: var(--muted-sage);
  text-decoration: none;
  transition: color var(--fast) var(--ease);
}

.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  color: var(--electric-teal);
}

.page-faq .breadcrumb__sep {
  color: var(--line-green);
}

.page-faq .breadcrumb__current {
  color: var(--paper);
}

/* 首屏框景 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 4vw, 46px);
  padding-top: calc(clamp(22px, 4vw, 46px) + 10px);
  border: var(--hair);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(45, 226, 197, .12), transparent 62%),
    linear-gradient(180deg, var(--panel-green), var(--pitch-ink) 88%);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 10px;
  background-image: repeating-linear-gradient(90deg, var(--line-green) 0 1px, transparent 1px 28px);
  opacity: .85;
  pointer-events: none;
}

.page-faq .faq-hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--muted-sage);
}

.page-faq .faq-hero__lamp {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--arena-orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 44, .16);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 24px;
}

.page-faq .faq-hero__title {
  margin: 0 0 14px;
  font-size: clamp(30px, 5.6vw, 56px);
  line-height: 1.08;
  letter-spacing: -.02em;
  font-weight: 900;
}

.page-faq .faq-hero__lede {
  max-width: 40ch;
  margin: 0;
  font-size: clamp(14.5px, 1.6vw, 16.5px);
  line-height: 1.85;
  color: rgba(243, 247, 240, .82);
}

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

/* 路线索引 */
.page-faq .faq-index {
  align-self: start;
  padding: 14px 16px;
  border: var(--hair);
  border-radius: var(--radius);
  background: rgba(21, 56, 47, .55);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--muted-sage);
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid rgba(43, 76, 66, .7);
  color: var(--paper);
  font-size: 14px;
  text-decoration: none;
  transition: color var(--fast) var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--score-lime);
}

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--arena-orange);
}

.page-faq .faq-index__label {
  flex: 1 1 auto;
}

.page-faq .faq-index__arrow {
  color: var(--electric-teal);
  transition: transform var(--fast) var(--ease);
}

.page-faq .faq-index__link:hover .faq-index__arrow,
.page-faq .faq-index__link:focus-visible .faq-index__arrow {
  transform: translateX(3px);
}

/* 章节通用 */
.page-faq .faq-sec {
  margin-top: clamp(36px, 6vw, 68px);
}

.page-faq .faq-sec__head {
  max-width: 64ch;
  margin-bottom: 24px;
}

.page-faq .faq-sec__kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--score-lime);
}

.page-faq .faq-sec h2 {
  margin: 0 0 10px;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.22;
  letter-spacing: -.01em;
}

.page-faq .faq-sec__intro {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(243, 247, 240, .74);
}

.page-faq summary {
  cursor: pointer;
  list-style: none;
}

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

/* 三步指引 */
.page-faq .faq-steps__grid {
  display: grid;
  gap: 24px;
}

.page-faq .faq-steps {
  margin: 0;
  padding: 0 0 0 20px;
  list-style: none;
  border-left: 1px solid var(--line-green);
  display: grid;
  gap: 22px;
}

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

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--pitch-ink);
  border: 1px solid var(--arena-orange);
}

.page-faq .faq-step__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--arena-orange);
}

.page-faq .faq-step__title {
  margin: 6px 0 8px;
  font-size: 18px;
  line-height: 1.4;
}

.page-faq .faq-step__text {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(243, 247, 240, .78);
}

.page-faq .faq-step__more summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--electric-teal);
}

.page-faq .faq-step__more summary::after {
  content: "＋";
  font-size: 12px;
}

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

.page-faq .faq-step__more p {
  margin: 10px 0 0;
  padding-left: 12px;
  border-left: 1px solid var(--line-green);
  font-size: 14px;
  line-height: 1.8;
  color: rgba(243, 247, 240, .7);
}

.page-faq .faq-figure {
  margin: 0;
  padding: 8px;
  border: var(--hair);
  border-radius: var(--radius);
  background: var(--panel-green);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 2px;
  object-fit: cover;
}

/* 问题分类与手风琴 */
.page-faq .faq-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 24px;
}

.page-faq .faq-cats__link {
  padding: 9px 14px;
  border: var(--hair);
  border-radius: 999px;
  color: var(--muted-sage);
  font-size: 13px;
  line-height: 1;
  text-decoration: none;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.page-faq .faq-cats__link:hover,
.page-faq .faq-cats__link:focus-visible {
  color: var(--paper);
  border-color: var(--electric-teal);
}

.page-faq .faq-groups {
  display: grid;
  gap: 28px;
}

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 6px;
  font-size: 15px;
  letter-spacing: .04em;
}

.page-faq .faq-group__no {
  padding: 2px 6px;
  border-radius: 2px;
  background: var(--score-lime);
  color: var(--pitch-ink);
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-faq .faq-item {
  border-top: 1px solid var(--line-green);
}

.page-faq .faq-item summary {
  position: relative;
  display: block;
  padding: 14px 30px 14px 16px;
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.65;
  color: var(--paper);
}

.page-faq .faq-item summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 8px;
  height: 2px;
  background: var(--line-green);
  transition: width var(--fast) var(--ease), background var(--fast) var(--ease);
}

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 12px;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--muted-sage);
}

.page-faq .faq-item[open] summary::before {
  width: 12px;
  background: var(--electric-teal);
}

.page-faq .faq-item[open] summary::after {
  content: "−";
  color: var(--electric-teal);
}

.page-faq .faq-item__body {
  padding: 0 16px 16px;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(243, 247, 240, .76);
}

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

/* 浏览器与设备 */
.page-faq .faq-fit__grid {
  display: grid;
  gap: 24px;
}

.page-faq .faq-fit__main p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.82;
  color: rgba(243, 247, 240, .78);
}

.page-faq .faq-kernels {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-kernel {
  padding: 6px 10px;
  border: 1px solid var(--line-green);
  border-radius: 2px;
  background: rgba(21, 56, 47, .55);
  color: var(--muted-sage);
  font-size: 12.5px;
}

.page-faq .faq-fit__main h3 {
  margin: 0 0 12px;
  font-size: 16px;
}

.page-faq .faq-check {
  counter-reset: faqcheck;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-check__item {
  counter-increment: faqcheck;
  position: relative;
  padding-left: 30px;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(243, 247, 240, .78);
}

.page-faq .faq-check__item::before {
  content: counter(faqcheck, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--electric-teal);
}

.page-faq .faq-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0 0 18px;
}

.page-faq .faq-stat {
  flex: 1 1 160px;
  padding: 12px 14px;
  border: var(--hair);
  border-radius: var(--radius);
  background: var(--panel-green);
}

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-variant-numeric: tabular-nums;
  color: var(--score-lime);
}

.page-faq .faq-stat__unit {
  margin-left: 2px;
  font-size: 12px;
  color: var(--muted-sage);
}

.page-faq .faq-stat__label {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted-sage);
}

.page-faq .faq-link {
  color: var(--electric-teal);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 226, 197, .35);
  transition: border-color var(--fast) var(--ease);
}

.page-faq .faq-link:hover,
.page-faq .faq-link:focus-visible {
  border-color: var(--electric-teal);
}

/* 入口校正时间线 */
.page-faq .faq-timeline {
  margin: 0 0 18px;
  padding: 4px 0 4px 22px;
  list-style: none;
  border-left: 1px solid var(--line-green);
  display: grid;
  gap: 20px;
}

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

.page-faq .faq-timeline__item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 6px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--arena-orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 44, .16);
}

.page-faq .faq-timeline__item:last-child::before {
  background: var(--score-lime);
  box-shadow: 0 0 0 3px rgba(200, 255, 74, .16);
}

.page-faq .faq-timeline__when {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--score-lime);
}

.page-faq .faq-timeline__title {
  margin: 0 0 6px;
  font-size: 16px;
  line-height: 1.45;
}

.page-faq .faq-timeline__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(243, 247, 240, .76);
}

/* 反馈与服务时间 */
.page-faq .faq-feedback__grid {
  display: grid;
  gap: 20px;
}

.page-faq .faq-support,
.page-faq .faq-hours {
  padding: clamp(18px, 3vw, 28px);
  border: var(--hair);
  border-radius: var(--radius);
  background: var(--panel-green);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-support h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

.page-faq .faq-support p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.82;
  color: rgba(243, 247, 240, .78);
}

.page-faq .faq-support__list {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-faq .faq-support__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(243, 247, 240, .8);
}

.page-faq .faq-support__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--arena-orange);
}

.page-faq .faq-hours {
  background: var(--panel-green-2);
}

.page-faq .faq-hours__status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--score-lime);
}

.page-faq .faq-hours__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--score-lime);
  box-shadow: 0 0 0 4px rgba(200, 255, 74, .16);
  animation: faqPulse 2.4s var(--ease) infinite;
}

.page-faq .faq-hours h3 {
  margin: 0 0 14px;
  font-size: 17px;
}

.page-faq .faq-hours__rows {
  margin: 0 0 14px;
  display: grid;
  gap: 10px;
}

.page-faq .faq-hours__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 6px 12px;
  padding-bottom: 8px;
  border-bottom: 1px dashed rgba(43, 76, 66, .85);
}

.page-faq .faq-hours__label {
  margin: 0;
  font-size: 12.5px;
  color: var(--muted-sage);
}

.page-faq .faq-hours__value {
  margin: 0;
  font-size: 13px;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-hours__contact {
  color: var(--electric-teal);
  word-break: break-all;
}

.page-faq .faq-hours__note {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.72;
  color: var(--muted-sage);
}

@keyframes faqPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .4; }
}

@media (min-width: 720px) {
  .page-faq .faq-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px 40px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }

  .page-faq .faq-steps__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-faq .faq-fit__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-faq .faq-feedback__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 26px;
    align-items: start;
  }
}

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

  .page-faq .faq-index__arrow,
  .page-faq .faq-item summary::before {
    transition: none;
  }
}