.page-faq {
  --faq-radius: 0;
  --faq-step: clamp(28px, 5vw, 64px);
  background: var(--paper);
  color: var(--charcoal);
  font-family: var(--font-body);
}

.page-faq h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.4vw, 32px);
  line-height: 1.28;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.page-faq section {
  padding-block: var(--faq-step);
}

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

.page-faq .tut-sub {
  margin: 0 0 clamp(18px, 3vw, 28px);
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--brown);
}

/* ---------- hero ---------- */
.page-faq .tut-hero {
  position: relative;
  padding-block: clamp(26px, 5vw, 58px) clamp(34px, 6vw, 72px);
  background:
    radial-gradient(120% 90% at 82% 0%, rgba(178, 58, 46, 0.26), transparent 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
  color: var(--paper);
  border-bottom: 1px solid var(--line);
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(20px, 3vw, 34px);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: rgba(246, 239, 223, 0.6);
}

.page-faq .breadcrumb a {
  color: var(--gold-light);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease);
}

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

.page-faq .breadcrumb span[aria-hidden] {
  color: rgba(201, 162, 75, 0.62);
}

.page-faq .tut-hero-grid {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
}

.page-faq .tut-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 12.5px;
  letter-spacing: 0.2em;
  color: var(--gold-light);
}

.page-faq .tut-kicker::before {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--gold);
}

.page-faq h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.14;
  letter-spacing: 0.02em;
  color: var(--paper-white);
}

.page-faq .tut-lead {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: rgba(246, 239, 223, 0.82);
}

.page-faq .tut-hero-meta {
  list-style: none;
  margin: 26px 0 0;
  padding: 18px 0 0;
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .tut-hero-meta li {
  display: flex;
  gap: 8px;
  align-items: baseline;
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(246, 239, 223, 0.8);
}

.page-faq .meta-num {
  flex: none;
  font-family: var(--font-num);
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-faq .tut-hero-note {
  border: 1px solid var(--line);
  border-left: 3px solid var(--vermilion);
  background: rgba(10, 26, 30, 0.55);
  padding: clamp(18px, 3vw, 26px);
  box-shadow: var(--shadow-panel);
  min-width: 0;
}

.page-faq .note-label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.page-faq .tut-hero-note p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(246, 239, 223, 0.8);
}

.page-faq .tut-hero-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding-bottom: 4px;
  font-size: 13.5px;
  letter-spacing: 0.1em;
  color: var(--gold-light);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .tut-hero-link:hover,
.page-faq .tut-hero-link:focus-visible {
  color: var(--paper-white);
  border-bottom-color: var(--gold-light);
}

/* ---------- 首图 ---------- */
.page-faq .tut-shot {
  padding-block: clamp(24px, 4vw, 44px) 0;
  background: var(--paper);
}

.page-faq .tut-shot-figure {
  margin: 0;
}

.page-faq .tut-shot-figure figcaption {
  margin-top: 12px;
  padding-left: 12px;
  border-left: 2px solid var(--gold);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--brown);
}

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

/* ---------- 悬浮检索条 ---------- */
.page-faq .tut-dock {
  padding-block: 0;
  background: var(--paper-white);
  border-bottom: 1px solid var(--rule-brown);
  box-shadow: 0 16px 32px -30px rgba(10, 26, 30, 0.9);
}

.page-faq .tut-dock-inner {
  display: grid;
  gap: 14px;
  padding-block: 16px;
}

.page-faq .tut-dock-head h2 {
  margin: 0 0 4px;
  font-size: 17px;
  letter-spacing: 0.06em;
}

.page-faq .tut-dock-head p {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--brown);
}

.page-faq .tut-dock-modes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  min-width: 0;
}

.page-faq .tut-dock-modes li {
  min-width: 0;
}

.page-faq .tut-dock-modes a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 10px;
  align-items: baseline;
  padding: 10px 12px;
  border: 1px solid var(--rule-brown);
  text-decoration: none;
  color: var(--ink);
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-faq .tut-dock-modes a:hover,
.page-faq .tut-dock-modes a:focus-visible {
  border-color: var(--gold);
  background: rgba(230, 200, 126, 0.18);
}

.page-faq .dock-num {
  grid-column: 1;
  grid-row: 1 / span 2;
  font-family: var(--font-num);
  font-size: 16px;
  letter-spacing: 0.06em;
  color: var(--gold-ink);
}

.page-faq .dock-name {
  grid-column: 2;
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-faq .dock-desc {
  grid-column: 2;
  font-size: 12px;
  line-height: 1.5;
  color: var(--brown);
}

/* ---------- 三种方式 ---------- */
.page-faq .tut-modes {
  background: var(--paper);
}

.page-faq .tut-mode-list {
  display: grid;
  gap: clamp(14px, 2.4vw, 22px);
}

.page-faq .tut-mode {
  min-width: 0;
  padding: clamp(18px, 2.6vw, 26px);
  background: var(--paper-white);
  border: 1px solid var(--rule-brown);
  border-top: 2px solid var(--vermilion);
  box-shadow: var(--shadow-panel);
}

.page-faq .tut-mode-head {
  display: flex;
  gap: 12px;
  align-items: baseline;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .tut-mode-num {
  flex: none;
  font-family: var(--font-num);
  font-size: 22px;
  letter-spacing: 0.06em;
  color: var(--gold-ink);
}

.page-faq .tut-mode h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.02em;
  color: var(--ink);
}

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

.page-faq .tut-steps li {
  counter-increment: faqstep;
  position: relative;
  padding-left: 34px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--charcoal);
}

.page-faq .tut-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--vermilion);
  border-bottom: 1px solid rgba(178, 58, 46, 0.35);
}

.page-faq .tut-tip {
  margin: 14px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--patina);
  font-size: 12.5px;
  line-height: 1.72;
  color: var(--brown);
}

/* ---------- 年份带 ---------- */
.page-faq .tut-years {
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
  color: var(--paper);
  border-block: 1px solid var(--line);
}

.page-faq .tut-years h2 {
  color: var(--paper-white);
}

.page-faq .tut-years-inner {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
}

.page-faq .tut-years-copy p {
  margin: 0 0 14px;
  max-width: 56ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(246, 239, 223, 0.78);
}

.page-faq .tut-year-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  align-content: start;
}

.page-faq .tut-year-list a {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--paper-white);
  font-family: var(--font-num);
  font-size: clamp(20px, 2.8vw, 28px);
  letter-spacing: 0.04em;
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease), color 0.25s var(--ease);
}

.page-faq .tut-year-list a::after {
  content: "年";
  font-family: var(--font-body);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-faq .tut-year-list a:hover,
.page-faq .tut-year-list a:focus-visible {
  background: rgba(201, 162, 75, 0.14);
  border-color: var(--gold-light);
  color: var(--gold-light);
}

/* ---------- 侧栏清单 ---------- */
.page-faq .tut-index {
  background: var(--paper-white);
  border-block: 1px solid var(--rule-brown);
}

.page-faq .tut-index-head p {
  margin: 0 0 22px;
  max-width: 68ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--charcoal);
}

.page-faq .tut-index-group {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .tut-index-group li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 14px;
  align-items: baseline;
  padding: 16px 0 18px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .gid {
  grid-row: 1 / span 2;
  font-family: var(--font-num);
  font-size: 15px;
  letter-spacing: 0.1em;
  color: var(--gold-ink);
  white-space: nowrap;
}

.page-faq .tut-index-group h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 0.03em;
  color: var(--ink);
}

.page-faq .tut-index-group p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--brown);
}

/* ---------- 分辨率 ---------- */
.page-faq .tut-res {
  background: var(--paper);
}

.page-faq .tut-res-grid {
  display: grid;
  gap: clamp(20px, 4vw, 40px);
}

.page-faq .tut-res-figure {
  margin: 0;
  min-width: 0;
}

.page-faq .tut-res-svg {
  display: block;
  width: 100%;
  height: auto;
  background: var(--paper-white);
  border: 1px solid var(--rule-brown);
}

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

.page-faq .tut-res-shot {
  margin: clamp(22px, 4vw, 38px) 0 0;
}

/* ---------- 无结果 ---------- */
.page-faq .tut-empty {
  background: var(--paper-white);
  border-block: 1px solid var(--rule-brown);
}

.page-faq .tut-empty-grid {
  display: grid;
  gap: clamp(20px, 4vw, 44px);
  align-items: start;
}

.page-faq .tut-empty .tut-sub {
  margin-bottom: 14px;
}

.page-faq .tut-empty-note {
  display: flex;
  align-items: baseline;
  gap: 9px;
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--brown);
}

.page-faq .tut-empty-note .dot {
  flex: none;
  width: 8px;
  height: 8px;
  background: var(--patina);
  transform: translateY(-1px);
}

.page-faq .tut-empty-cta {
  margin: clamp(18px, 3vw, 26px) 0 0;
}

.page-faq .tut-empty .tut-hero-link {
  color: var(--gold-ink);
  border-bottom-color: var(--rule-brown);
}

.page-faq .tut-empty .tut-hero-link:hover,
.page-faq .tut-empty .tut-hero-link:focus-visible {
  color: var(--vermilion-deep);
  border-bottom-color: var(--vermilion);
}

/* ---------- 问答 ---------- */
.page-faq .tut-faq {
  background: var(--paper);
}

.page-faq .tut-faq-grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
}

.page-faq .tut-cats {
  min-width: 0;
  padding: 18px;
  background: var(--paper-white);
  border: 1px solid var(--rule-brown);
}

.page-faq .tut-cats-title {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold-ink);
}

.page-faq .tut-cats ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .tut-cats a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px;
  align-items: baseline;
  padding: 9px 4px;
  border-bottom: 1px solid rgba(138, 106, 70, 0.14);
  text-decoration: none;
  color: var(--ink);
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .tut-cats a:hover,
.page-faq .tut-cats a:focus-visible {
  background: rgba(230, 200, 126, 0.22);
  color: var(--vermilion-deep);
}

.page-faq .cnum {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold-ink);
}

.page-faq .cname {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.03em;
}

.page-faq .ccount {
  font-size: 11.5px;
  white-space: nowrap;
  color: var(--brown);
}

.page-faq .tut-qa {
  min-width: 0;
}

.page-faq .tut-cat {
  padding-block: 0 clamp(18px, 3vw, 26px);
}

.page-faq .tut-cat + .tut-cat {
  padding-top: clamp(18px, 3vw, 26px);
  border-top: 1px solid var(--line-soft);
}

.page-faq .tut-cat h3 {
  display: flex;
  gap: 12px;
  align-items: baseline;
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.page-faq .tut-cat-count {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold-ink);
}

.page-faq .tut-q {
  margin-bottom: 8px;
  background: var(--paper-white);
  border: 1px solid var(--rule-brown);
}

.page-faq .tut-q summary {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 13px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 14.5px;
  letter-spacing: 0.02em;
  color: var(--ink);
}

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

.page-faq .tut-q summary::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--gold-ink);
  border-bottom: 1.5px solid var(--gold-ink);
  transform: rotate(-45deg);
  transition: transform 0.25s var(--ease);
}

.page-faq .tut-q[open] summary::before {
  transform: rotate(45deg);
}

.page-faq .tut-q[open] summary {
  background: rgba(230, 200, 126, 0.14);
}

.page-faq .tut-q p {
  margin: 0 16px;
  padding: 12px 0 16px 20px;
  border-top: 1px solid var(--line-soft);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--charcoal);
}

/* ---------- 尾部 ---------- */
.page-faq .tut-tail {
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
  color: var(--paper);
  border-top: 1px solid var(--line);
}

.page-faq .tut-tail h2 {
  color: var(--paper-white);
}

.page-faq .tut-tail p {
  margin: 0 0 22px;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(246, 239, 223, 0.78);
}

.page-faq .tut-tail-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .tut-tail-link {
  display: inline-flex;
  align-items: center;
  padding: 11px 20px;
  border: 1px solid var(--line);
  text-decoration: none;
  font-size: 13.5px;
  letter-spacing: 0.08em;
  color: var(--gold-light);
  transition: background-color 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.page-faq .tut-tail-link:hover,
.page-faq .tut-tail-link:focus-visible {
  background: var(--vermilion);
  border-color: var(--vermilion);
  color: var(--paper-white);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .tut-hero-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

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

@media (min-width: 760px) {
  .page-faq .tut-index-group {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 4vw, 48px);
  }
}

@media (min-width: 900px) {
  .page-faq .tut-hero-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.85fr);
    align-items: end;
  }

  .page-faq .tut-dock {
    position: sticky;
    top: calc(var(--header-h) + 4px);
    z-index: 30;
  }

  .page-faq .tut-dock-inner {
    grid-template-columns: minmax(0, 250px) minmax(0, 1fr);
    align-items: center;
    gap: 28px;
    padding-block: 14px;
  }

  .page-faq .tut-years-inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

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

  .page-faq .tut-res-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }

  .page-faq .tut-empty-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

  .page-faq .tut-steps--wide {
    gap: 12px;
  }
}

@media (min-width: 960px) {
  .page-faq .tut-mode-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1020px) {
  .page-faq .tut-faq-grid {
    grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}