/* ===== 上手教程页 · page-faq ===== */

.page-faq {
  --faq-gap: clamp(14px, 2.2vw, 26px);
  --faq-read: 66ch;
  --faq-soft-line: rgba(143, 243, 221, .14);
  overflow-x: clip;
}

.page-faq .faq-inner {
  position: relative;
  z-index: 1;
  width: min(100% - 2 * var(--gutter), var(--shell-max));
  margin-inline: auto;
}

/* ---------- 面包屑 ---------- */

.page-faq .breadcrumbs {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-faq .breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.page-faq .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin: 0 10px;
  color: var(--muted);
  opacity: .55;
}

.page-faq .breadcrumbs__item span[aria-current="page"] {
  color: var(--muted);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(18px, 3.5vw, 40px) clamp(30px, 5vw, 58px);
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(53, 240, 200, .055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(53, 240, 200, .055) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(ellipse 78% 82% at 18% 0%, #000 0%, transparent 74%);
  mask-image: radial-gradient(ellipse 78% 82% at 18% 0%, #000 0%, transparent 74%);
}

.page-faq .faq-hero .section-label {
  margin-bottom: 12px;
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-size: clamp(38px, 7.4vw, 80px);
  font-weight: 800;
  line-height: 1.03;
  letter-spacing: -.02em;
  color: var(--glass);
  margin: 0;
  max-width: 15ch;
  text-wrap: balance;
}

.page-faq .faq-hero__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--body-text);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-start;
  align-content: flex-start;
}

@media (min-width: 900px) {
  .page-faq .faq-hero__split {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: end;
  }
  .page-faq .faq-hero__actions {
    justify-content: flex-end;
  }
}

/* ---------- 四步流程 ---------- */

.page-faq .faq-steps {
  padding-block: clamp(30px, 5vw, 60px) clamp(20px, 3vw, 34px);
}

.page-faq .faq-steps__heading,
.page-faq .faq-questions__heading,
.page-faq .faq-help__heading {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 40px);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--glass);
  margin: 10px 0 0;
  max-width: 24ch;
}

.page-faq .faq-steps__intro {
  margin: 14px 0 clamp(24px, 4vw, 40px);
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--body-text);
}

.page-faq .faq-steps__band {
  display: flex;
  gap: var(--faq-gap);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--night-3) transparent;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-steps__band::-webkit-scrollbar {
  height: 6px;
}

.page-faq .faq-steps__band::-webkit-scrollbar-thumb {
  background: var(--night-3);
  border-radius: 999px;
}

.page-faq .faq-step {
  position: relative;
  flex: 0 0 clamp(238px, 76vw, 296px);
  scroll-snap-align: start;
  display: block;
  padding-top: 26px;
  border-top: 2px solid var(--line);
  text-decoration: none;
  color: inherit;
  transition: border-color 240ms var(--ease);
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 6px rgba(53, 240, 200, .12);
  transition: box-shadow 240ms var(--ease);
}

.page-faq .faq-step:hover,
.page-faq .faq-step:focus-visible {
  border-color: var(--neon);
}

.page-faq .faq-step:hover::before,
.page-faq .faq-step:focus-visible::before {
  box-shadow: 0 0 0 11px rgba(53, 240, 200, .2);
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--neon);
  margin-bottom: 14px;
}

.page-faq .faq-step__title {
  display: block;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: .005em;
  color: var(--glass);
  margin-bottom: 10px;
}

.page-faq .faq-step__desc {
  display: block;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--body-text);
}

.page-faq .faq-step__check {
  display: block;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed var(--faq-soft-line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

@media (min-width: 1080px) {
  .page-faq .faq-steps__band {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    overflow: visible;
    padding-bottom: 0;
  }
  .page-faq .faq-step {
    flex: none;
  }
}

/* ---------- 问答区 ---------- */

.page-faq .faq-questions {
  padding-block: clamp(34px, 5vw, 64px) clamp(10px, 2vw, 20px);
}

.page-faq .faq-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: clamp(20px, 3.2vw, 32px) 0 clamp(10px, 2vw, 18px);
}

.page-faq .filter-count {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--muted);
  margin-left: 4px;
}

.page-faq .faq-group {
  margin-top: clamp(34px, 5vw, 58px);
}

.page-faq .faq-group + .faq-group {
  padding-top: clamp(24px, 4vw, 42px);
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 10px;
  font-family: var(--font-body);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--neon);
}

.page-faq .faq-group__title::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--line);
}

.page-faq .faq-group__note {
  margin: 0 0 16px;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* 折叠条目 */

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

.page-faq .faq-item > summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 19px 46px 19px 0;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.62;
  color: var(--glass);
  transition: color 200ms var(--ease);
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item > summary:hover,
.page-faq .faq-item > summary:focus-visible {
  color: var(--neon);
}

.page-faq .faq-item > summary::after {
  content: "";
  position: absolute;
  right: 10px;
  top: 27px;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--neon);
  border-bottom: 2px solid var(--neon);
  transform: rotate(45deg);
  transition: transform 260ms var(--ease);
}

.page-faq .faq-item[open] > summary::after {
  transform: rotate(225deg);
}

.page-faq .faq-item__body {
  max-width: var(--faq-read);
  padding: 0 0 22px;
  font-size: 15.5px;
  line-height: 1.92;
  color: var(--body-text);
}

.page-faq .faq-item__body p {
  margin: 0 0 12px;
}

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

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

/* 终端示意图 */

.page-faq .faq-device__figure {
  margin: 0 0 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

/* ---------- 湖南地区阅读带（浅色反转） ---------- */

.page-faq .faq-region {
  margin-top: clamp(40px, 6vw, 84px);
  padding-block: clamp(40px, 6vw, 76px);
  background: var(--light);
  color: var(--light-ink);
}

.page-faq .faq-region .section-label {
  color: #14654F;
}

.page-faq .faq-region h2 {
  font-family: var(--font-display);
  font-size: clamp(25px, 3.8vw, 42px);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--ink-950);
  margin: 10px 0 14px;
  max-width: 22ch;
}

.page-faq .faq-region__lede {
  margin: 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.88;
  color: #3F6157;
}

.page-faq .faq-region__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 32px);
  margin-top: clamp(24px, 3.6vw, 40px);
}

@media (min-width: 760px) {
  .page-faq .faq-region__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-region__item {
  padding-top: 16px;
  border-top: 2px solid #A9CFC4;
}

.page-faq .faq-region__item strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: .01em;
  color: #0E5544;
  margin-bottom: 10px;
}

.page-faq .faq-region__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: #3A5A52;
}

/* ---------- 求助出口 ---------- */

.page-faq .faq-help {
  padding-block: clamp(44px, 6vw, 84px);
}

.page-faq .faq-help__lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--body-text);
}

.page-faq .faq-help__links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: clamp(24px, 3.6vw, 38px) 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 720px) {
  .page-faq .faq-help__links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-help__link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--night-2);
  text-decoration: none;
  transition: border-color 220ms var(--ease), transform 220ms var(--ease), background 220ms var(--ease);
}

.page-faq .faq-help__link:hover,
.page-faq .faq-help__link:focus-visible {
  border-color: var(--neon);
  background: var(--night-3);
  transform: translateY(-3px);
}

.page-faq .faq-help__link-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--neon);
}

.page-faq .faq-help__link-desc {
  font-size: 14px;
  line-height: 1.78;
  color: var(--body-text);
}

/* ---------- 图片通用约束 ---------- */

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

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

/* ---------- 减少动效偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-step::before,
  .page-faq .faq-item > summary,
  .page-faq .faq-item > summary::after,
  .page-faq .faq-help__link {
    transition: none !important;
  }
  .page-faq .faq-help__link:hover,
  .page-faq .faq-help__link:focus-visible {
    transform: none;
  }
}

/* ---------- 窄屏兜底 ---------- */

@media (max-width: 480px) {
  .page-faq .faq-hero__title {
    font-size: clamp(32px, 10vw, 44px);
  }
  .page-faq .faq-item > summary {
    font-size: 15.5px;
    padding-right: 38px;
  }
  .page-faq .faq-region__item strong {
    font-size: 22px;
  }
}
<<<END>>>