.page-faq {
  --faq-step-1: var(--cyan);
  --faq-step-2: var(--orange);
  --faq-step-3: var(--purple);
  padding-bottom: clamp(3rem, 7vw, 6rem);
}

.page-faq .crumbs {
  padding: 1.1rem 0 0.4rem;
  font-size: var(--fs-small);
  letter-spacing: 0.08em;
  color: var(--muted);
}

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

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

.page-faq .crumbs__sep {
  margin: 0 0.5rem;
  color: var(--line);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: clamp(1.25rem, 4vw, 3rem) 0 clamp(2rem, 5vw, 3.25rem);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.75rem);
  align-items: center;
}

.page-faq .faq-hero__copy h1 {
  font-family: var(--font-display);
  font-size: var(--fs-hero);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0.6rem 0 0;
  color: var(--text);
}

.page-faq .faq-hero__lead {
  margin: 1.1rem 0 0;
  max-width: 34rem;
  font-size: var(--fs-lead);
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.page-faq .faq-hero__media {
  margin: 0;
  border: var(--edge);
  background: var(--panel);
  box-shadow: var(--hard);
}

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

.page-faq .faq-hero__media .media__cap {
  border-top: 2px solid var(--line);
  padding: 0.6rem 0.85rem;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- 三步自查 ---------- */

.page-faq .faq-steps {
  border-top: var(--edge);
  border-bottom: var(--edge);
  background:
    repeating-linear-gradient(
      90deg,
      rgba(31, 68, 89, 0.28) 0 1px,
      transparent 1px 28px
    ),
    var(--panel);
  padding: clamp(2rem, 5vw, 3.5rem) 0;
}

.page-faq .faq-steps__head h2 {
  font-family: var(--font-display);
  font-size: var(--fs-section);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--text);
}

.page-faq .faq-steps__head p {
  margin: 0.65rem 0 0;
  max-width: 36rem;
  color: var(--muted);
  font-size: var(--fs-body);
}

.page-faq .faq-steps__grid {
  display: grid;
  gap: 1.1rem;
  margin-top: clamp(1.5rem, 4vw, 2.25rem);
}

.page-faq .step {
  --step-color: var(--cyan);
  position: relative;
  border: var(--edge);
  border-top: 6px solid var(--step-color);
  background: var(--raised);
  box-shadow: var(--hard-sm);
  padding: 1.1rem 1.1rem 1.3rem;
}

.page-faq .step--2 { --step-color: var(--faq-step-2); }
.page-faq .step--3 { --step-color: var(--faq-step-3); }

.page-faq .step__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.9rem;
  line-height: 1;
  color: var(--step-color);
  letter-spacing: 0.02em;
}

.page-faq .step__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0.6rem 0 0;
  color: var(--text);
}

.page-faq .step__text {
  margin: 0.5rem 0 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 问答主体 ---------- */

.page-faq .faq-body__head {
  margin: clamp(2.5rem, 6vw, 4rem) 0 clamp(1.25rem, 3vw, 1.75rem);
}

.page-faq .faq-body__head h2 {
  font-family: var(--font-display);
  font-size: var(--fs-section);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--text);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.5rem);
}

.page-faq .faq-index {
  border: var(--edge);
  background: var(--panel);
  padding: 1.1rem 1.1rem 1.25rem;
  box-shadow: var(--hard-sm);
}

.page-faq .faq-index__title {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.page-faq .faq-index__link {
  display: block;
  padding: 0.5rem 0.65rem;
  border-left: 3px solid var(--line);
  color: var(--text);
  text-decoration: none;
  font-size: 0.975rem;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-left-color: var(--cyan);
  background: var(--raised);
}

.page-faq .faq-index__link[aria-current="true"] {
  border-left-color: var(--lime);
  background: var(--raised);
  color: var(--lime);
}

.page-faq .faq-index__note {
  margin: 0.9rem 0 0;
  font-size: var(--fs-small);
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .faq-groups {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.5rem);
  min-width: 0;
}

.page-faq .faq-group {
  --qa-accent: var(--cyan);
  min-width: 0;
}

.page-faq .faq-group--subscribe { --qa-accent: var(--faq-step-2); }
.page-faq .faq-group--ranking { --qa-accent: var(--lime); }
.page-faq .faq-group--member { --qa-accent: var(--faq-step-3); }
.page-faq .faq-group--contact { --qa-accent: var(--coral); }

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.4vw, 1.6rem);
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
  padding-bottom: 0.65rem;
  border-bottom: var(--edge);
  color: var(--text);
}

.page-faq .faq-group__title::before {
  content: "";
  width: 1.1rem;
  height: 1.1rem;
  flex: none;
  background: var(--qa-accent);
  border: 2px solid var(--line);
}

.page-faq .faq-group__media {
  margin: 0 0 1.1rem;
  border: var(--edge);
  background: var(--panel);
}

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

.page-faq .faq-group__media .media__cap {
  border-top: 2px solid var(--line);
  padding: 0.55rem 0.85rem;
  font-size: var(--fs-small);
  letter-spacing: 0.05em;
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */

.page-faq .qa {
  border: var(--edge);
  background: var(--panel);
  margin-bottom: 0.9rem;
  transition: box-shadow 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .qa[open] {
  background: var(--raised);
  box-shadow: var(--hard-sm);
}

.page-faq .qa > summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 1rem 3.1rem 1rem 1.1rem;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text);
  border-left: 4px solid var(--qa-accent);
}

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

.page-faq .qa > summary::after {
  content: "+";
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--qa-accent);
  transition: transform 0.25s var(--ease);
}

.page-faq .qa[open] > summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.page-faq .qa > summary:hover {
  background: rgba(18, 48, 72, 0.65);
}

.page-faq .qa__body {
  padding: 0.25rem 1.1rem 1.15rem 1.1rem;
  border-left: 4px solid var(--qa-accent);
}

.page-faq .qa__body p {
  margin: 0.6rem 0 0;
  font-size: 0.975rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .qa__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 2px solid rgba(61, 242, 214, 0.4);
}

.page-faq .qa__body a:hover {
  border-bottom-color: var(--cyan);
}

.page-faq .qa__steps {
  list-style: none;
  counter-reset: qa-step;
  margin: 0.85rem 0 0;
  padding: 0;
}

.page-faq .qa__steps li {
  counter-increment: qa-step;
  position: relative;
  padding: 0.15rem 0 0.15rem 0.95rem;
  border-left: 3px solid var(--qa-accent);
  margin-bottom: 0.7rem;
  font-size: 0.975rem;
  line-height: 1.75;
  color: var(--text);
}

.page-faq .qa__steps li::before {
  content: counter(qa-step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--qa-accent);
  margin-right: 0.55rem;
}

/* ---------- 联系区 ---------- */

.page-faq .faq-contact__lead {
  margin: 0 0 1.1rem;
  max-width: 38rem;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-contact {
  border: var(--edge);
  border-left: 6px solid var(--coral);
  background: var(--raised);
  box-shadow: var(--hard-sm);
  padding: 1.15rem 1.1rem 1.25rem;
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-faq .faq-contact__item {
  display: grid;
  gap: 0.2rem;
}

.page-faq .faq-contact__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-faq .faq-contact__value {
  font-family: var(--font-mono);
  font-size: 1.02rem;
  color: var(--text);
  text-decoration: none;
  word-break: break-word;
}

.page-faq .faq-contact__value--plain {
  font-family: var(--font-body);
  font-size: 0.975rem;
  line-height: 1.65;
}

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

.page-faq .faq-contact__note {
  margin: 1rem 0 0;
  padding-top: 0.85rem;
  border-top: 2px solid var(--line);
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-contact__more {
  margin: 1rem 0 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-contact__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 2px solid rgba(61, 242, 214, 0.4);
}

.page-faq .faq-contact__more a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 桌面增强 ---------- */

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }

  .page-faq .faq-steps__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2.6rem;
  }

  .page-faq .step:not(:last-child)::after {
    content: "→";
    position: absolute;
    right: -1.9rem;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-mono);
    font-size: 1.35rem;
    color: var(--muted);
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 3rem;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 1.5rem;
  }

  .page-faq .faq-contact__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa > summary::after,
  .page-faq .faq-index__link {
    transition: none;
  }
}
<<<END>>>