.page-faq {
  --faq-measure: 70ch;
  --faq-index-w: 216px;
  display: block;
  background: var(--ink);
  color: var(--text);
  padding: 20px 0 72px;
}

.page-faq .breadcrumb {
  margin-bottom: 28px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 28px 0 44px;
  border-bottom: 1px solid var(--hairline);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -40px -24px auto -24px;
  height: 260px;
  background: var(--mint-glow);
  opacity: .55;
  clip-path: polygon(0 0, 100% 0, 100% 72%, 62% 100%, 0 88%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--cyan);
  margin: 0 0 16px;
  text-transform: uppercase;
}

.page-faq .faq-hero__title {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 30px;
  line-height: 1.24;
  letter-spacing: -.02em;
  margin: 0 0 20px;
  max-width: 22ch;
}

.page-faq .faq-hero__lead {
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
  margin: 0 0 32px;
  max-width: var(--faq-measure);
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: 0;
  padding: 20px 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
  border-top: 1px solid var(--hairline);
}

.page-faq .faq-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-hero__stat-num {
  font-size: 26px;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}

.page-faq .faq-hero__stat-label {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .04em;
}

/* ---------- 布局 ---------- */
.page-faq .faq-layout {
  display: block;
  padding-top: 40px;
}

.page-faq .faq-index {
  margin-bottom: 36px;
}

.page-faq .faq-index__title {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--muted);
  margin: 0 0 14px;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0 0 0 14px;
  border-left: 1px solid var(--hairline);
  display: flex;
  flex-direction: row;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
  padding-bottom: 4px;
}

.page-faq .faq-index__link {
  display: inline-block;
  white-space: nowrap;
  padding: 7px 12px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-index__link .num {
  color: var(--mist);
  margin-right: 6px;
  font-size: 11px;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--text);
  border-color: var(--cyan);
  background: rgba(53, 242, 208, .07);
}

.page-faq .faq-layout:has(#start:target) .faq-index__link[href="#start"],
.page-faq .faq-layout:has(#calendar:target) .faq-index__link[href="#calendar"],
.page-faq .faq-layout:has(#ranking:target) .faq-index__link[href="#ranking"],
.page-faq .faq-layout:has(#tablet:target) .faq-index__link[href="#tablet"],
.page-faq .faq-layout:has(#trouble:target) .faq-index__link[href="#trouble"],
.page-faq .faq-layout:has(#help:target) .faq-index__link[href="#help"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-layout:has(#start:target) .faq-index__link[href="#start"] .num,
.page-faq .faq-layout:has(#calendar:target) .faq-index__link[href="#calendar"] .num,
.page-faq .faq-layout:has(#ranking:target) .faq-index__link[href="#ranking"] .num,
.page-faq .faq-layout:has(#tablet:target) .faq-index__link[href="#tablet"] .num,
.page-faq .faq-layout:has(#trouble:target) .faq-index__link[href="#trouble"] .num,
.page-faq .faq-layout:has(#help:target) .faq-index__link[href="#help"] .num {
  color: var(--ink);
}

/* 字号档位示意 */
.page-faq .faq-type {
  padding: 14px 0 0;
  border-top: 1px solid var(--hairline);
  max-width: 220px;
}

.page-faq .faq-type__cap {
  display: block;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--muted);
  margin-bottom: 12px;
}

.page-faq .faq-type__track {
  position: relative;
  height: 2px;
  background: var(--hairline);
  margin-bottom: 12px;
}

.page-faq .faq-type__tick {
  position: absolute;
  top: -4px;
  width: 1px;
  height: 10px;
  background: var(--hairline);
}

.page-faq .faq-type__tick:nth-child(1) { left: 0; }
.page-faq .faq-type__tick:nth-child(2) { left: 50%; }
.page-faq .faq-type__tick:nth-child(3) { left: 100%; }

.page-faq .faq-type__knob {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  margin: -5px 0 0 -5px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(53, 242, 208, .14);
}

.page-faq .faq-type__value {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .06em;
}

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  scroll-margin-top: 96px;
  padding-top: 48px;
}

.page-faq .faq-section .section-head {
  margin-bottom: 26px;
}

.page-faq .faq-section .faq-crosslink {
  margin: 22px 0 0;
  font-size: 14px;
  color: var(--muted);
  padding-left: 14px;
  border-left: 2px solid var(--hairline);
}

.page-faq .faq-crosslink a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid rgba(143, 251, 230, .35);
}

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

/* ---------- 入门步骤 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 0;
  border-top: 1px solid var(--hairline);
}

.page-faq .faq-step:last-child {
  border-bottom: 1px solid var(--hairline);
}

.page-faq .faq-step__no {
  font-size: 20px;
  font-weight: 700;
  color: var(--orange);
  line-height: 1.2;
}

.page-faq .faq-step__title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.01em;
  margin: 0 0 8px;
}

.page-faq .faq-step__text p {
  margin: 0;
  max-width: var(--faq-measure);
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.78;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 30px 0 0;
}

.page-faq .faq-figure--lead {
  margin: 0 0 28px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--panel-deep);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.7;
}

/* ---------- 问答 ---------- */
.page-faq .faq-qa {
  border-top: 1px solid var(--hairline);
}

.page-faq .faq-qa--tight {
  margin-top: 26px;
}

.page-faq .faq-q {
  border-top: 1px solid var(--hairline);
  border-left: 2px solid transparent;
  padding-left: 0;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-faq .faq-q:first-child {
  border-top-color: var(--hairline);
}

.page-faq .faq-q[open] {
  border-left-color: var(--cyan);
  padding-left: 16px;
  background: linear-gradient(90deg, rgba(53, 242, 208, .07) 0%, rgba(53, 242, 208, 0) 46%);
}

.page-faq .faq-q summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 17px 0 17px;
  cursor: pointer;
  list-style: none;
  outline: none;
}

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

.page-faq .faq-q summary::after {
  content: "+";
  margin-left: auto;
  padding-left: 16px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
  flex: none;
}

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

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

.page-faq .faq-q__no {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
  flex: none;
  padding-top: 2px;
}

.page-faq .faq-q__title {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--text);
}

.page-faq .faq-q[open] .faq-q__title {
  color: var(--cyan);
}

.page-faq .faq-q__body {
  padding: 0 24px 20px 34px;
}

.page-faq .faq-q__body p {
  margin: 0;
  max-width: var(--faq-measure);
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--muted);
}

/* ---------- 榜单说明 ---------- */
.page-faq .faq-board {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-board__item {
  background: var(--panel);
  padding: 14px 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
}

.page-faq .faq-board__name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  flex: none;
  min-width: 92px;
}

.page-faq .faq-board__use {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.6;
}

/* ---------- 平板阅读 ---------- */
.page-faq .faq-read {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-read__card {
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 18px 18px 20px;
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-read__title {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -.01em;
}

.page-faq .faq-read__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-note {
  margin-top: 22px;
  padding: 18px 18px 18px 20px;
  border-left: 2px solid var(--orange);
  background: rgba(255, 106, 43, .06);
  border-radius: var(--radius);
}

.page-faq .faq-note p {
  margin: 0;
  max-width: var(--faq-measure);
  font-size: 14px;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 自助排查 ---------- */
.page-faq .faq-check {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  counter-reset: faqcheck;
}

.page-faq .faq-check__item {
  position: relative;
  padding: 20px 0 20px 30px;
  border-top: 1px solid var(--hairline);
}

.page-faq .faq-check__item:last-child {
  border-bottom: 1px solid var(--hairline);
}

.page-faq .faq-check__item::before {
  counter-increment: faqcheck;
  content: counter(faqcheck, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-faq .faq-check__title {
  margin: 0 0 8px;
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: -.01em;
}

.page-faq .faq-check__item p {
  margin: 0;
  max-width: var(--faq-measure);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-section--help .section-head {
  margin-bottom: 22px;
}

.page-faq .faq-help {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel-deep);
}

.page-faq .faq-help__main {
  padding: 24px 20px;
  background: var(--mint-glow);
  border-bottom: 1px solid var(--hairline);
}

.page-faq .faq-help__main p {
  margin: 0 0 18px;
  max-width: var(--faq-measure);
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--text);
}

.page-faq .faq-help__lead {
  margin: 0 !important;
}

.page-faq .faq-help__side {
  padding: 24px 20px;
  background: var(--panel);
}

.page-faq .faq-help__side-title {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}

.page-faq .faq-help__list li {
  position: relative;
  padding: 8px 0 8px 18px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
  border-bottom: 1px dashed var(--hairline);
}

.page-faq .faq-help__list li:last-child {
  border-bottom: 0;
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 6px;
  height: 1px;
  background: var(--orange);
}

.page-faq .faq-help__more {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-help__more a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid rgba(143, 251, 230, .35);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero__title {
    font-size: 38px;
    max-width: 24ch;
  }

  .page-faq .faq-hero__lead {
    font-size: 16px;
  }

  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-hero__stat-num {
    font-size: 30px;
  }

  .page-faq .faq-board {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-read {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-help__main,
  .page-faq .faq-help__side {
    padding: 28px 24px;
  }
}

@media (min-width: 1024px) {
  .page-faq {
    padding-bottom: 96px;
  }

  .page-faq .faq-hero {
    padding: 44px 0 56px;
  }

  .page-faq .faq-hero::before {
    inset: -60px -48px auto -48px;
    height: 340px;
  }

  .page-faq .faq-hero__title {
    font-size: 46px;
    max-width: 20ch;
  }

  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 64px;
    align-items: start;
    padding-top: 56px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
    margin-bottom: 0;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding: 0 0 0 14px;
    margin-bottom: 28px;
  }

  .page-faq .faq-index__link {
    display: block;
    width: 100%;
    border-color: transparent;
    padding: 8px 10px;
    white-space: normal;
  }

  .page-faq .faq-body {
    max-width: 860px;
  }

  .page-faq .faq-section {
    padding-top: 64px;
  }

  .page-faq .faq-section:first-child {
    padding-top: 0;
  }

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

  .page-faq .faq-read {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1px;
    background: var(--hairline);
    border: 1px solid var(--hairline);
    border-radius: var(--radius);
    overflow: hidden;
  }

  .page-faq .faq-read__card {
    border: 0;
    border-radius: 0;
    box-shadow: none;
    padding: 22px 18px 24px;
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }

  .page-faq .faq-help__main {
    border-bottom: 0;
    border-right: 1px solid var(--hairline);
    padding: 36px 32px;
  }

  .page-faq .faq-help__side {
    padding: 36px 30px;
  }

  .page-faq .faq-q__body {
    padding: 0 40px 24px 46px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q,
  .page-faq .faq-index__link {
    transition: none;
  }
}