/* ================= page-faq ================= */
.page-faq {
  background: var(--ink);
  color: var(--text);
  overflow-x: hidden;
}

/* ---- 顶部与首屏 ---- */
.page-faq .faq-top {
  position: relative;
  padding: 18px 0 44px;
  background:
    radial-gradient(130% 100% at 88% -10%, rgba(28, 79, 62, .58), rgba(6, 13, 11, 0) 62%),
    linear-gradient(180deg, rgba(10, 26, 21, .96) 0%, var(--ink) 100%);
  border-bottom: 1px solid var(--line);
}

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

.page-faq .breadcrumb__link:hover {
  color: var(--cyan);
}

.page-faq .faq-hero {
  display: grid;
  gap: 30px;
  margin-top: 26px;
  align-items: center;
}

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

.page-faq .faq-hero__copy > * + * {
  margin-top: 16px;
}

.page-faq .faq-hero h1 {
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.08;
  letter-spacing: .04em;
  max-width: 11em;
  color: var(--paper);
}

.page-faq .faq-hero .eyebrow {
  color: var(--cyan);
  letter-spacing: .18em;
}

.page-faq .faq-hero .lede {
  color: #C6DCD3;
  max-width: 46ch;
  line-height: 1.75;
}

.page-faq .faq-jump {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
}

.page-faq .faq-jump a {
  display: inline-block;
  padding: 7px 12px;
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
  text-decoration: none;
  transition: background .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  background: rgba(42, 240, 196, .14);
  transform: translateY(-2px);
}

.page-faq .faq-gauge {
  border: 1px solid var(--line);
  background: linear-gradient(158deg, rgba(16, 40, 31, .96), rgba(6, 13, 11, .92));
  padding: 16px;
  box-shadow: var(--stack);
}

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

.page-faq .faq-gauge__cap {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
  line-height: 1.6;
}

/* ---- 章节骨架 ---- */
.page-faq .faq-sec {
  padding: 52px 0;
  border-top: 1px solid rgba(42, 240, 196, .1);
}

.page-faq .faq-sec--tint {
  background: linear-gradient(180deg, rgba(10, 26, 21, .92), rgba(6, 13, 11, .4));
}

.page-faq .faq-sec__head {
  display: grid;
  gap: 10px;
  max-width: 62ch;
  margin-bottom: 26px;
}

.page-faq .faq-sec__head .label {
  color: var(--cyan);
  letter-spacing: .16em;
}

.page-faq .faq-sec__head h2 {
  color: var(--paper);
  letter-spacing: .03em;
  line-height: 1.2;
}

.page-faq .faq-sec__lede {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  margin: 0;
}

/* ---- 问答卡 ---- */
.page-faq .faq-stack {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.page-faq .faq-grid {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.page-faq .faq-grid:has(.qa[open]) {
  padding-bottom: 44px;
}

.page-faq .qa {
  background: var(--layer);
  border: 1px solid var(--line);
  border-left: 3px solid var(--moss);
  padding: 14px 16px;
  transition: border-color .24s var(--ease), background .24s var(--ease);
}

.page-faq .qa[open] {
  border-left-color: var(--cyan);
  background: linear-gradient(180deg, rgba(28, 79, 62, .55), rgba(16, 40, 31, .92));
}

.page-faq .qa summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
}

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

.page-faq .qa summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

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

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .qa__body {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 15px;
  line-height: 1.75;
  color: #C3D7CE;
}

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

.page-faq .qa__body p + p {
  margin-top: 8px;
}

.page-faq .qa__verdict {
  color: var(--cyan-soft);
  font-weight: 600;
}

/* ---- 分栏与图 ---- */
.page-faq .faq-split {
  display: grid;
  gap: 26px;
}

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

.page-faq .faq-figure {
  margin: 0;
  padding: 10px;
  background: var(--deep);
  border: 1px solid var(--line-strong);
  box-shadow: var(--stack);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--layer);
}

.page-faq .faq-figure--tall img {
  aspect-ratio: 3 / 4;
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
  line-height: 1.6;
}

/* ---- 五项指标连线 ---- */
.page-faq .faq-dots {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-dots::before {
  content: "";
  position: absolute;
  left: 10%;
  right: 10%;
  top: 13px;
  height: 2px;
  background: linear-gradient(90deg, rgba(42, 240, 196, .25), var(--cyan), rgba(42, 240, 196, .25));
  opacity: .8;
}

.page-faq .faq-dot {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}

.page-faq .faq-dot__dot {
  position: relative;
  z-index: 1;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
  box-shadow: inset 0 0 0 5px rgba(42, 240, 196, .18);
}

.page-faq .faq-dot__name {
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--text);
}

/* ---- 版本标签 ---- */
.page-faq .faq-tagrow {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 4px;
}

.page-faq .faq-tag {
  display: inline-block;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  border: 1px solid var(--line-strong);
  color: var(--muted);
}

.page-faq .faq-tag--main {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}

.page-faq .faq-tag--alt {
  color: var(--purple);
  border-color: rgba(164, 128, 255, .6);
  background: rgba(164, 128, 255, .1);
}

.page-faq .faq-tag--note {
  color: var(--orange);
  border-color: rgba(255, 122, 41, .55);
}

/* ---- 三步排查 ---- */
.page-faq .faq-subhead {
  margin: 34px 0 0;
  font-size: 17px;
  letter-spacing: .06em;
  color: var(--paper);
  font-weight: 700;
}

.page-faq .faq-steps {
  counter-reset: faqstep;
  list-style: none;
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: baseline;
  padding: 12px 14px;
  background: rgba(16, 40, 31, .72);
  border: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.65;
  color: #C3D7CE;
}

.page-faq .faq-steps li::before {
  counter-increment: faqstep;
  content: "0" counter(faqstep);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--orange);
}

/* ---- 斜切数据带 ---- */
.page-faq .faq-band {
  margin-top: 34px;
}

.page-faq .faq-band .diagonal-band__inner {
  display: grid;
  gap: 1px;
  background: var(--line);
}

.page-faq .faq-band .diagonal-band__seg {
  padding: 20px 18px;
  background: rgba(6, 13, 11, .78);
}

.page-faq .faq-band__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 6vw, 34px);
  line-height: 1.1;
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-faq .faq-band__label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--muted);
}

/* ---- 后续入口 ---- */
.page-faq .faq-sec--next {
  padding-bottom: 72px;
}

.page-faq .faq-next {
  display: grid;
  gap: 14px;
}

.page-faq .faq-next__card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 18px;
  background: var(--deep);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  text-decoration: none;
  color: var(--text);
  transition: transform .22s var(--ease), border-color .22s var(--ease), background .22s var(--ease);
}

.page-faq .faq-next__card:hover,
.page-faq .faq-next__card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  background: var(--layer);
}

.page-faq .faq-next__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-faq .faq-next__title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--paper);
}

.page-faq .faq-next__text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---- 断点 ---- */
@media (min-width: 720px) {
  .page-faq .faq-band .diagonal-band__inner {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .faq-next {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 860px) {
  .page-faq .faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 24px;
    align-items: start;
  }

  .page-faq .faq-grid > .qa:nth-child(even) {
    margin-top: 28px;
  }

  .page-faq .faq-dot__name {
    font-size: 13px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 48px;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-sec {
    padding: 64px 0;
  }

  .page-faq .faq-gauge {
    padding: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .faq-jump a,
  .page-faq .faq-next__card {
    transition: none;
  }

  .page-faq .faq-jump a:hover,
  .page-faq .faq-next__card:hover {
    transform: none;
  }
}

@media print {
  .page-faq {
    background: var(--paper);
    color: var(--paper-ink);
  }

  .page-faq .faq-top,
  .page-faq .faq-sec--tint {
    background: none;
    border-color: #B9C9C1;
  }

  .page-faq .faq-hero h1,
  .page-faq .faq-sec__head h2,
  .page-faq .faq-subhead,
  .page-faq .faq-next__title {
    color: var(--paper-ink);
  }

  .page-faq .qa,
  .page-faq .faq-next__card,
  .page-faq .faq-figure {
    background: #FFFFFF;
    border: 1px solid #B9C9C1;
    box-shadow: none;
  }

  .page-faq .qa__body,
  .page-faq .faq-sec__lede,
  .page-faq .faq-next__text,
  .page-faq .faq-steps li {
    color: #24352E;
  }

  .page-faq .faq-band {
    clip-path: none;
  }
}