/* ================= 使用指南 /guide/ ================= */
.page-faq {
  --gold-deep: #8A6A1F;
  --ink-soft: #46535D;
  --line-ink: rgba(16, 22, 28, .12);
  --line-gold: rgba(200, 162, 74, .45);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.9;
}

.page-faq h1,
.page-faq h2,
.page-faq h3,
.page-faq p,
.page-faq ul,
.page-faq ol,
.page-faq figure {
  margin: 0;
}

.page-faq a {
  color: var(--sea);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(115% 85% at 94% -12%, rgba(200, 162, 74, .22), transparent 62%),
    linear-gradient(158deg, var(--sea) 0%, var(--deck) 58%, #0d3050 100%);
  color: var(--on-deep);
  padding: clamp(34px, 6vw, 74px) 0 clamp(44px, 7vw, 86px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -25%;
  right: -12%;
  z-index: -1;
  width: 68%;
  height: 150%;
  background: repeating-radial-gradient(circle at 70% 42%, transparent 0 46px, rgba(230, 201, 122, .07) 46px 47px);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-faq .faq-hero__aside .annote {
  writing-mode: horizontal-tb;
  color: var(--gold-light);
}

.page-faq .faq-hero .crumbs a {
  color: var(--gold-light);
}

.page-faq .faq-hero .crumbs li:last-child a {
  color: var(--on-deep-dim);
}

.page-faq .faq-hero .eyebrow {
  margin-top: 18px;
  color: var(--gold-light);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .24em;
}

.page-faq .faq-hero h1 {
  margin-top: 14px;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.1vw, 60px);
  line-height: 1.18;
  letter-spacing: -.01em;
  color: #F7F4EC;
}

.page-faq .faq-hero .lead {
  margin-top: 22px;
  max-width: 60ch;
  color: var(--on-deep);
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.95;
}

.page-faq .faq-facts {
  list-style: none;
  margin-top: 30px;
  padding: 22px 0 0;
  display: grid;
  gap: 16px 26px;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  border-top: 1px solid rgba(230, 201, 122, .28);
}

.page-faq .faq-fact {
  padding-left: 12px;
  border-left: 2px solid var(--gold);
}

.page-faq .faq-fact__k {
  display: block;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--on-deep-dim);
}

.page-faq .faq-fact__v {
  display: block;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 19px;
  color: var(--gold-light);
}

.page-faq .faq-hero__figure {
  margin-top: clamp(32px, 5vw, 56px);
  border: 1px solid rgba(230, 201, 122, .26);
  border-radius: var(--r-xl);
  overflow: hidden;
  background: rgba(255, 255, 255, .04);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 正文与章节索引 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 28px;
  padding-top: clamp(36px, 6vw, 68px);
  padding-bottom: clamp(56px, 8vw, 110px);
}

.page-faq .faq-toc {
  padding: 14px 0 10px;
  border-top: 1px solid var(--line-ink);
  border-bottom: 1px solid var(--line-ink);
}

.page-faq .faq-toc__title {
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--mist);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
}

.page-faq .faq-toc__list li {
  flex: 0 0 auto;
}

.page-faq .faq-toc__link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  white-space: nowrap;
  padding: 5px 12px;
  border: 1px solid var(--line-ink);
  border-radius: var(--r-pill);
  font-size: 13px;
  text-decoration: none;
  color: var(--mist);
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease), background var(--fast) var(--ease);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  color: var(--gold-deep);
  border-color: var(--gold);
}

.page-faq .faq-toc__link[aria-current="true"] {
  color: #FFFFFF;
  background: var(--sea);
  border-color: var(--sea);
}

.page-faq .faq-toc__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
}

.page-faq .faq-toc__link[aria-current="true"] .faq-toc__idx {
  color: var(--gold-light);
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  padding: clamp(44px, 7vw, 90px) 0;
  border-top: 1px solid var(--line-ink);
}

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

.page-faq .faq-sec__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  margin-bottom: clamp(24px, 4vw, 42px);
}

.page-faq .index-big {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(36px, 6vw, 58px);
  line-height: 1;
  letter-spacing: .02em;
  color: transparent;
  -webkit-text-stroke: 1.2px rgba(200, 162, 74, .8);
}

@supports not (-webkit-text-stroke: 1px black) {
  .page-faq .index-big {
    color: rgba(200, 162, 74, .6);
  }
}

.page-faq .faq-sec__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 3.3vw, 35px);
  line-height: 1.32;
  letter-spacing: -.005em;
  color: var(--ink);
}

.page-faq .faq-sec__note {
  margin-top: 12px;
  max-width: 62ch;
  font-size: 16px;
  color: var(--ink-soft);
}

.page-faq .faq-sec__foot {
  margin-top: 26px;
  padding-left: 14px;
  border-left: 3px solid var(--gold-mist);
  max-width: 64ch;
  font-size: 15.5px;
  color: var(--ink-soft);
}

/* ---------- 编号卡片 ---------- */
.page-faq .faq-cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-faq .faq-card {
  position: relative;
  padding: 24px 20px 22px 22px;
  background: #FFFFFF;
  border: 1px solid var(--line-ink);
  border-radius: var(--r-lg);
  transition: border-color var(--fast) var(--ease);
}

.page-faq .faq-card::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 26px;
  width: 6px;
  height: 30px;
  border-radius: 0 3px 3px 0;
  background: rgba(200, 162, 74, .32);
  transition: background var(--fast) var(--ease);
}

.page-faq .faq-card:hover::before,
.page-faq .faq-card:focus-within::before {
  background: var(--gold);
}

.page-faq .faq-card:hover {
  border-color: var(--line-gold);
}

.page-faq .faq-card__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--gold);
}

.page-faq .faq-card__title {
  margin-top: 6px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
}

.page-faq .faq-card__text {
  margin-top: 6px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 编号步骤 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-step {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  padding: 20px 20px 20px 22px;
  background: #FFFFFF;
  border: 1px solid var(--line-ink);
  border-radius: var(--r-lg);
  transition: border-color var(--fast) var(--ease);
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 24px;
  width: 6px;
  height: 26px;
  border-radius: 0 3px 3px 0;
  background: rgba(200, 162, 74, .3);
  transition: background var(--fast) var(--ease);
}

.page-faq .faq-step:hover {
  border-color: var(--line-gold);
}

.page-faq .faq-step:hover::before {
  background: var(--gold);
}

.page-faq .faq-step__num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--gold-deep);
}

.page-faq .faq-step__title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 4px;
}

.page-faq .faq-step__text {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 设备分层 ---------- */
.page-faq .faq-layers {
  display: grid;
  gap: 18px;
}

.page-faq .faq-layer {
  border-radius: var(--r-lg);
  padding: 22px 20px;
}

.page-faq .faq-layer--old {
  background: var(--sand);
}

.page-faq .faq-layer--new {
  background: linear-gradient(150deg, var(--deck), #0e3350);
  color: var(--on-deep);
}

.page-faq .faq-layer__label {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
}

.page-faq .faq-layer--old .faq-layer__label {
  color: var(--gold-deep);
}

.page-faq .faq-layer--new .faq-layer__label {
  color: var(--gold-light);
}

.page-faq .faq-layer ul,
.page-faq .faq-layer ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-layer li {
  position: relative;
  padding-left: 18px;
  font-size: 15.5px;
  line-height: 1.8;
}

.page-faq .faq-layer li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--gold);
}

.page-faq .faq-layer--new li {
  color: var(--on-deep);
}

.page-faq .faq-switch {
  margin-top: 30px;
  border: 1px solid var(--line-ink);
  border-radius: var(--r-xl);
  overflow: hidden;
  background: #FFFFFF;
}

.page-faq .faq-switch img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-switch__cap {
  padding: 14px 18px;
  border-top: 1px solid var(--line-ink);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ink-soft);
}

/* ---------- 要点清单 ---------- */
.page-faq .faq-points {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-point {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 20px 0;
  border-top: 1px solid var(--line-ink);
}

.page-faq .faq-point:last-child {
  border-bottom: 1px solid var(--line-ink);
}

.page-faq .faq-point__k {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--gold-deep);
}

.page-faq .faq-point__v {
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.85;
}

/* ---------- 问答 ---------- */
.page-faq .faq-qgroup {
  margin-top: 34px;
}

.page-faq .faq-qgroup:first-of-type {
  margin-top: 0;
}

.page-faq .faq-qgroup__title {
  display: inline-block;
  padding-bottom: 8px;
  margin-bottom: 4px;
  border-bottom: 2px solid var(--gold);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--sea);
}

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

.page-faq .faq-qa__q {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px 0;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--gold-deep);
  transition: color var(--fast) var(--ease);
}

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

.page-faq .faq-qa__q::before {
  content: "+";
  flex: 0 0 auto;
  width: 14px;
  font-family: var(--font-mono);
  color: var(--gold);
}

.page-faq .faq-qa[open] .faq-qa__q::before {
  content: "−";
}

.page-faq .faq-qa__q:hover,
.page-faq .faq-qa__q:focus-visible {
  color: var(--sea);
}

.page-faq .faq-qa__a {
  margin: 0 0 18px;
  padding-left: 26px;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--ink);
}

/* ---------- 支持区 ---------- */
.page-faq .faq-help {
  padding: clamp(24px, 4vw, 44px);
  border-radius: var(--r-xl);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(200, 162, 74, .2), transparent 60%),
    linear-gradient(150deg, var(--sea), #0d3350 68%, #10405f);
  color: var(--on-deep);
}

.page-faq .faq-help__lead {
  max-width: 52ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 2.4vw, 25px);
  line-height: 1.5;
  color: #F7F4EC;
}

.page-faq .faq-help__grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-help__card {
  padding: 18px 18px 16px;
  border: 1px solid rgba(230, 201, 122, .3);
  border-radius: var(--r-md);
  transition: border-color var(--fast) var(--ease);
}

.page-faq .faq-help__card:hover {
  border-color: var(--gold-light);
}

.page-faq .faq-help__k {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--gold-light);
}

.page-faq .faq-help__v {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 17px;
  color: #FFFFFF;
  word-break: break-word;
}

.page-faq .faq-help__note {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--on-deep-dim);
}

.page-faq .faq-help__note a {
  color: var(--gold-light);
  text-decoration: none;
  border-bottom: 1px solid rgba(230, 201, 122, .55);
}

.page-faq .faq-help__note a:hover {
  border-bottom-color: var(--gold-light);
}

.page-faq .faq-prep {
  margin-top: 20px;
  padding: clamp(20px, 3vw, 30px);
  background: var(--sand);
  border-radius: var(--r-lg);
}

.page-faq .faq-prep__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  color: var(--ink);
}

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

.page-faq .faq-prep__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .faq-prep__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .7em;
  width: 9px;
  height: 9px;
  border-radius: 2px;
  background: var(--jade);
}

.page-faq .faq-prep__note {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(16, 22, 28, .14);
  font-size: 14.5px;
  color: var(--ink-soft);
}

/* ---------- 延伸链接 ---------- */
.page-faq .faq-links {
  margin-top: clamp(32px, 4vw, 52px);
  padding-top: 22px;
  border-top: 1px solid var(--line-ink);
}

.page-faq .faq-links__k {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .24em;
  color: var(--mist);
}

.page-faq .faq-links__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-links__list a {
  display: inline-block;
  font-size: 15.5px;
  color: var(--sea);
  text-decoration: none;
  border-bottom: 1px solid rgba(11, 42, 69, .25);
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.page-faq .faq-links__list a:hover,
.page-faq .faq-links__list a:focus-visible {
  color: var(--gold-deep);
  border-bottom-color: var(--gold);
}

/* ---------- 响应式 ---------- */
@media (min-width: 480px) {
  .page-faq .faq-help__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

@media (min-width: 760px) {
  .page-faq .faq-sec__head {
    grid-template-columns: 100px minmax(0, 1fr);
    gap: 26px;
    align-items: start;
  }

  .page-faq .faq-point {
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 26px;
    align-items: baseline;
  }

  .page-faq .faq-qa {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    gap: 32px;
    align-items: start;
  }

  .page-faq .faq-qa__q {
    padding: 16px 0 18px;
  }

  .page-faq .faq-qa__a {
    margin: 16px 0 18px;
    padding-left: 0;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-layers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 34px;
  }

  .page-faq .faq-hero__aside .annote {
    writing-mode: vertical-rl;
    margin-top: 46px;
  }

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

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 1fr) 188px;
    grid-template-areas: "flow toc";
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-flow {
    grid-area: flow;
  }

  .page-faq .faq-toc {
    grid-area: toc;
    position: sticky;
    top: calc(var(--header-h) + 28px);
    padding: 0;
    border: 0;
  }

  .page-faq .faq-toc__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-toc__link {
    width: 100%;
    padding: 8px 0 8px 12px;
    border: 0;
    border-left: 2px solid var(--line-ink);
    border-radius: 0;
    white-space: normal;
    line-height: 1.5;
  }

  .page-faq .faq-toc__link[aria-current="true"] {
    background: transparent;
    color: var(--gold-deep);
    border-left-color: var(--gold);
  }

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