.page-faq {
  --faq-cut: 16px;
  --faq-cut-sm: 8px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4vw, 40px) 0 clamp(32px, 5vw, 58px);
  background:
    radial-gradient(130% 120% at 96% -10%, rgba(38, 240, 200, .16), transparent 58%),
    linear-gradient(180deg, var(--ink) 0%, var(--pitch) 100%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -40%;
  width: 46%;
  height: 130%;
  background: repeating-linear-gradient(104deg, transparent 0 16px, rgba(232, 255, 58, .055) 16px 18px);
  transform: rotate(-4deg);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 34px);
  margin-top: clamp(16px, 2.5vw, 26px);
}

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

.page-faq .faq-hero__lead h1 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: clamp(31px, 6.2vw, 58px);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -.012em;
  color: var(--paper);
}

.page-faq .faq-hero__intro {
  margin: 16px 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.75;
  color: rgba(242, 244, 239, .82);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-hero__card {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  background: linear-gradient(160deg, var(--board), var(--pitch));
  border: 1px solid var(--line-volt);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
}

.page-faq .faq-hero__card-title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--lime);
}

.page-faq .faq-hero__steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-hero__steps li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 14.5px;
  line-height: 1.65;
  color: rgba(242, 244, 239, .86);
}

.page-faq .faq-hero__steps li::before {
  content: "0" counter(faqstep);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--volt);
}

/* ---------- 主体骨架 ---------- */
.page-faq .page-shell {
  padding-top: clamp(26px, 4vw, 48px);
  padding-bottom: clamp(40px, 6vw, 76px);
  gap: clamp(24px, 4vw, 52px);
}

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

.page-faq .index-rail__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-faq .faq-rail-note {
  margin: 18px 0 0;
  padding-left: 10px;
  border-left: 2px solid var(--line-volt);
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding-block: clamp(24px, 3.4vw, 40px);
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: 92px;
}

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

.page-faq .faq-group__lead {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(242, 244, 239, .74);
}

.page-faq .faq-figure {
  margin: 18px 0 20px;
}

.page-faq .faq-figure figcaption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 问答折叠组 ---------- */
.page-faq .disclosure {
  margin-top: 10px;
  background: var(--pitch);
  border: 1px solid var(--line);
  border-left: 3px solid transparent;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .disclosure[open] {
  background: var(--board);
  border-left-color: var(--volt);
}

.page-faq .disclosure__summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 15px 20px;
  margin: 0;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.7vw, 16.5px);
  font-weight: 500;
  line-height: 1.55;
  color: var(--paper);
}

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

.page-faq .disclosure__summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--lime);
}

.page-faq .disclosure[open] .disclosure__summary::after {
  content: "−";
  color: var(--volt);
}

.page-faq .faq-q {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--lime);
}

.page-faq .disclosure__body {
  padding: 2px 20px 20px;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(242, 244, 239, .8);
}

.page-faq .disclosure__body p {
  margin: 0 0 10px;
}

.page-faq .disclosure__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 步骤编号 ---------- */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: fs;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-steps li {
  counter-increment: fs;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 9px 12px;
  background: rgba(7, 19, 15, .52);
  border-left: 2px solid var(--board);
  font-size: 14.5px;
  line-height: 1.65;
}

.page-faq .faq-steps li::before {
  content: counter(fs);
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--cyan);
}

/* ---------- 客服直连卡 ---------- */
.page-faq .faq-contact-card {
  margin-top: 18px;
  padding: 18px 20px;
  background: var(--ink);
  border: 1px solid var(--line);
  border-left: 3px solid var(--volt);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-faq .faq-contact-card__title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--lime);
}

.page-faq .faq-contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-contact-row:first-of-type {
  border-top: 0;
}

.page-faq .faq-contact-row__label {
  flex: 0 0 42px;
  font-size: 12.5px;
  color: var(--muted);
}

.page-faq .faq-contact-row__value {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 13.5px;
  color: var(--paper);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-faq .faq-contact-card__note {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .copy-btn {
  flex: 0 0 auto;
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--volt);
  background: transparent;
  border: 1px solid var(--line-volt);
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 0 100%);
  transition: background-color .18s var(--ease);
}

.page-faq .copy-btn:hover,
.page-faq .copy-btn:focus-visible {
  background: rgba(232, 255, 58, .14);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 920px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, .85fr);
    align-items: start;
    gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-contact-row__label {
    flex-basis: 48px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-group__lead {
    font-size: 15.5px;
  }

  .page-faq .disclosure__summary {
    padding: 16px 24px;
  }

  .page-faq .disclosure__body {
    padding: 2px 24px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .disclosure,
  .page-faq .copy-btn {
    transition: none;
  }
}
<<<END>>>