/* ============================================================
   page-faq — 新手指引
   ============================================================ */

.page-faq {
  --faq-sec-gap: clamp(40px, 7vw, 88px);
  --faq-item-gap: 14px;
  position: relative;
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .crumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-dim);
  flex-wrap: wrap;
}

.page-faq .crumbs a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

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

/* ---------- 首屏 ---------- */

.faq-hero {
  position: relative;
  padding: clamp(24px, 4vw, 44px) 0 clamp(32px, 5vw, 60px);
}

.page-faq .faq-hero .index-tag {
  display: inline-block;
  margin-top: 26px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: end;
  margin-top: 8px;
}

.faq-hero__title {
  margin: 14px 0 0;
  font-size: clamp(32px, 6.4vw, 68px);
  font-weight: 300;
  line-height: 1.12;
  letter-spacing: 0.02em;
  color: var(--ink);
  max-width: 15em;
}

.faq-hero__lead {
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 40em;
}

.faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 24px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.faq-hero__meta span {
  position: relative;
  padding-left: 14px;
}

.faq-hero__meta span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.faq-hero__media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  clip-path: polygon(0 0, 100% 5%, 100% 100%, 0 95%);
  background: var(--bg-2);
}

.faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.06) brightness(0.82);
}

.faq-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(205deg, rgba(0, 229, 255, 0.18), transparent 52%),
    linear-gradient(0deg, rgba(5, 7, 15, 0.62), transparent 60%);
}

/* ---------- 主题跳转 ---------- */

.faq-jump {
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  margin: 0 0 clamp(28px, 5vw, 52px);
  padding-bottom: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.faq-jump::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-jump .chip {
  flex: 0 0 auto;
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
}

/* ---------- 章节 ---------- */

.faq-sec {
  padding: clamp(32px, 5.5vw, 64px) 0;
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.faq-sec--last {
  border-bottom: 1px solid var(--line-soft);
}

.faq-sec__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(22px, 4vw, 40px);
  max-width: 44em;
}

.faq-sec__no {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.faq-sec__title {
  margin: 0;
  font-size: clamp(24px, 4vw, 42px);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.faq-sec__title::after {
  content: "";
  display: block;
  width: 58px;
  height: 3px;
  margin-top: 14px;
  background: linear-gradient(90deg, var(--cyan), rgba(0, 229, 255, 0));
  transform: skewX(-18deg);
}

.faq-sec__note {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 步骤条（宽节奏块） ---------- */

.step-track {
  list-style: none;
  margin: 0 0 clamp(24px, 4vw, 44px);
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
}

.step-track__item {
  position: relative;
  padding: 22px 20px 26px;
  background: var(--bg-2);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--cyan);
  border-radius: var(--radius);
  overflow: hidden;
}

.step-track__item::after {
  content: "";
  position: absolute;
  right: -30px;
  bottom: -30px;
  width: 90px;
  height: 90px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.14), transparent 70%);
  pointer-events: none;
}

.step-track__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--cyan);
}

.step-track__title {
  margin: 12px 0 8px;
  font-size: 19px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--ink);
}

.step-track__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 路径图 ---------- */

.faq-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-2);
}

.faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.88) brightness(0.86);
  clip-path: polygon(0 0, 100% 0, 100% 96%, 0 100%);
}

.faq-figure figcaption {
  padding: 14px 18px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.7;
  color: var(--mist);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 流转节奏条 ---------- */

.flow-track {
  list-style: none;
  margin: 0 0 clamp(28px, 5vw, 52px);
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.flow-track__item {
  position: relative;
  padding: 18px 20px 20px 22px;
  border-left: 2px solid var(--orange);
  border-radius: var(--radius);
  background: linear-gradient(90deg, rgba(255, 122, 26, 0.09), rgba(11, 18, 32, 0.6) 62%);
}

.flow-track__time {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.flow-track__text {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 折叠问题清单（两栏交错） ---------- */

.faq-list {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--faq-item-gap);
  align-items: start;
}

.faq-item {
  grid-column: 1 / -1;
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  transition: border-left-color 240ms var(--ease), background-color 240ms var(--ease);
}

.faq-item[open] {
  border-left-color: var(--cyan);
  background: var(--glass-strong);
}

.faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 44px;
  padding: 17px 18px;
  cursor: pointer;
  list-style: none;
}

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

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

.faq-item__no {
  flex: 0 0 auto;
  min-width: 30px;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--mist);
  transition: color 240ms var(--ease);
}

.faq-item[open] .faq-item__no {
  color: var(--cyan);
}

.faq-item__q {
  flex: 1 1 auto;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink);
}

.faq-item__sign {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 3px;
}

.faq-item__sign::before,
.faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 240ms var(--ease), opacity 240ms var(--ease);
}

.faq-item__sign::before {
  left: 0;
  top: 9px;
  width: 20px;
  height: 2px;
}

.faq-item__sign::after {
  left: 9px;
  top: 0;
  width: 2px;
  height: 20px;
}

.faq-item[open] .faq-item__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.faq-item__body {
  padding: 14px 18px 20px;
  border-top: 1px solid var(--line-soft);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.faq-item__body p {
  margin: 0 0 10px;
}

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

.faq-item__body a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

/* ---------- 联系区块 ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.contact-card {
  padding: 22px 20px 24px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  border-radius: var(--radius);
}

.contact-card--media {
  border-top-color: var(--rose);
}

.contact-card--coop {
  border-top-color: var(--lemon);
}

.contact-card__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.contact-card--media .contact-card__tag {
  color: var(--rose);
}

.contact-card--coop .contact-card__tag {
  color: var(--lemon);
}

.contact-card__title {
  margin: 12px 0 10px;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.45;
  color: var(--ink);
}

.contact-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.contact-line {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(22px, 4vw, 36px);
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(140deg, rgba(0, 229, 255, 0.07), rgba(11, 18, 32, 0.5) 62%);
}

.contact-line__item {
  margin: 0;
  display: grid;
  gap: 6px;
}

.contact-line__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.contact-line__value {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.005em;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
}

.contact-line__value--wide {
  font-size: 14px;
}

.faq-foot {
  margin: clamp(22px, 4vw, 34px) 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 46em;
}

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

/* ---------- 返回顶部 ---------- */

.page-faq .faq-top {
  position: fixed;
  right: 18px;
  bottom: calc(var(--ticker-h) + 18px);
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink);
  text-decoration: none;
  background: var(--glass-strong);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 240ms var(--ease), transform 240ms var(--ease), visibility 240ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .faq-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

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

.faq-top__text {
  white-space: nowrap;
}

/* ---------- 中屏 ---------- */

@media (min-width: 700px) {
  .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact-line {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 26px 24px;
  }

  .faq-item > summary {
    padding: 19px 22px;
    gap: 16px;
  }

  .faq-item__body {
    padding: 16px 22px 22px 68px;
  }

  .contact-card {
    padding: 26px 24px 28px;
  }
}

@media (min-width: 860px) {
  .step-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .flow-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .flow-track__item {
    border-left-width: 1px;
    border-left-color: rgba(255, 122, 26, 0.4);
  }

  .flow-track__item:first-child {
    border-left-width: 2px;
    border-left-color: var(--orange);
  }
}

@media (min-width: 960px) {
  .faq-hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .faq-item:nth-child(odd) {
    grid-column: 1 / span 7;
  }

  .faq-item:nth-child(even) {
    grid-column: 6 / span 7;
  }

  .faq-list {
    row-gap: 18px;
  }

  .contact-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .contact-line {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .faq-sec__head {
    grid-template-columns: auto minmax(0, 1fr);
    grid-template-areas:
      "no title"
      ". note";
    column-gap: 22px;
    row-gap: 8px;
    max-width: none;
  }

  .faq-sec__no {
    grid-area: no;
    padding-top: 12px;
  }

  .faq-sec__title {
    grid-area: title;
    max-width: 22em;
  }

  .faq-sec__note {
    grid-area: note;
    max-width: 40em;
  }

  .faq-sec__title::after {
    margin-left: 0;
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .page-faq .faq-top {
    transform: none;
  }
}
</｜｜DSML｜｜ parameter>
</｜｜DSML｜｜ invoke>
</｜｜DSML｜｜ calls>