.page-faq {
  --faq-sticky-top: calc(var(--header-h) + 12px);
  --faq-gap: clamp(16px, 3vw, 28px);
  background: var(--night);
  color: var(--white);
  padding-bottom: clamp(48px, 9vw, 104px);
  font-family: var(--font-sans);
}

.page-faq > .crumbs {
  padding-top: clamp(16px, 3vw, 28px);
}

.page-faq .faq-hero {
  display: grid;
  gap: clamp(24px, 5vw, 52px);
  align-items: center;
  padding-top: clamp(20px, 4vw, 44px);
  padding-bottom: clamp(30px, 6vw, 64px);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(30px, 5.6vw, 60px);
  line-height: 1.07;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--white);
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 40ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mint);
}

.page-faq .faq-hero .pill-row {
  margin-top: 20px;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-faq .faq-hero__media {
  position: relative;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  background:
    radial-gradient(120% 90% at 80% 0%, rgba(53, 232, 208, 0.18), transparent 60%),
    linear-gradient(150deg, rgba(28, 95, 88, 0.22), rgba(6, 11, 10, 0) 70%);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: calc(var(--r-xl) - 8px);
  background: var(--panel);
  object-fit: cover;
}

/* 索引胶囊：滚动时固定在内容区顶部 */
.page-faq .faq-index-wrap {
  position: sticky;
  top: var(--faq-sticky-top);
  z-index: 6;
  margin-top: 4px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(6, 11, 10, 0.93);
  backdrop-filter: blur(12px);
}

.page-faq .faq-index {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-top: 12px;
  padding-bottom: 12px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--ink);
  color: var(--white);
  font-size: 14px;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 200ms var(--ease), color 200ms var(--ease), background 200ms var(--ease);
}

.page-faq .faq-chip__idx {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--panel);
  box-shadow: inset 0 0 0 1px var(--cyan);
}

/* 章节 */
.page-faq .faq-section {
  padding-top: clamp(38px, 7vw, 78px);
  scroll-margin-top: calc(var(--header-h) + 96px);
}

.page-faq .faq-section .section-head {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-faq .faq-section h2 {
  margin: 10px 0 0;
  font-size: clamp(23px, 3.4vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--white);
}

.page-faq .faq-section .lede {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mint);
}

/* 双栏咬合 */
.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
}

/* 折叠问答面板 */
.page-faq .faq-panel {
  border-radius: var(--r-xl);
  padding: 4px clamp(14px, 3vw, 26px);
}

.page-faq .faq-panel > .disclosure {
  padding-left: 0;
  transition: padding-left 240ms var(--ease), box-shadow 240ms var(--ease);
}

.page-faq .faq-panel > .disclosure + .disclosure {
  border-top: 1px solid var(--line);
}

.page-faq .faq-panel > .disclosure[data-open] {
  padding-left: 12px;
  box-shadow: inset 2px 0 0 var(--cyan);
}

.page-faq .faq-panel .disclosure__trigger {
  width: 100%;
  padding: 18px 0;
  text-align: left;
  color: var(--white);
  font-size: 16px;
  line-height: 1.55;
  font-weight: 600;
}

.page-faq .faq-panel .disclosure__panel {
  padding-bottom: 18px;
}

.page-faq .faq-panel .disclosure__panel p {
  margin: 0 0 10px;
  color: var(--mint);
  font-size: 15px;
  line-height: 1.85;
}

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

.page-faq .faq-panel .disclosure__panel ul {
  margin: 0;
  padding-left: 18px;
  color: var(--mint);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-faq .faq-panel .disclosure__panel li + li {
  margin-top: 6px;
}

.page-faq .faq-panel--wide {
  padding-inline: clamp(16px, 4vw, 34px);
}

/* 数据小卡 */
.page-faq .faq-side {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.page-faq .faq-stat {
  padding: clamp(18px, 3vw, 26px);
  border-radius: var(--r-lg);
}

.page-faq .faq-stat__num {
  margin: 0;
  font-family: var(--font-num);
  font-size: clamp(44px, 8vw, 74px);
  line-height: 0.95;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.page-faq .faq-stat--orange .faq-stat__num {
  color: var(--orange);
}

.page-faq .faq-stat__unit {
  margin: 8px 0 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mint);
}

.page-faq .faq-stat__text {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mint);
}

.page-faq .faq-stat.panel--light .faq-stat__num {
  color: var(--ink);
}

.page-faq .faq-stat.panel--light .faq-stat__unit,
.page-faq .faq-stat.panel--light .faq-stat__text {
  color: var(--ink);
}

/* 订阅三步 */
.page-faq .steps {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.page-faq .step {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--panel);
}

.page-faq .step__idx {
  margin: 0;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .step p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mint);
}

/* 屏幕宽度卡 */
.page-faq .screen-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.page-faq .screen-card {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink);
}

.page-faq .screen-card .num {
  margin: 0;
  font-family: var(--font-num);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .screen-card p {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mint);
}

/* 术语速查 */
.page-faq .terms-layout {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-terms__media {
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  padding: 8px;
  background: linear-gradient(160deg, rgba(28, 95, 88, 0.24), rgba(6, 11, 10, 0) 65%);
}

.page-faq .faq-terms__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: calc(var(--r-xl) - 6px);
  background: var(--panel);
  object-fit: cover;
}

.page-faq .term-grid {
  display: grid;
  gap: 8px;
  margin: 0;
  min-width: 0;
}

.page-faq .term-row {
  display: grid;
  gap: 5px;
  padding: 12px 14px;
  border: 1px solid transparent;
  border-radius: var(--r-md);
  transition: background 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .term-row:hover,
.page-faq .term-row:focus-within {
  background: var(--panel);
  border-color: var(--line);
}

.page-faq .term-row dt {
  justify-self: start;
  padding: 4px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--ink);
  color: var(--cyan);
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: 0.04em;
}

.page-faq .term-row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mint);
}

/* 人工通道 */
.page-faq .faq-contact {
  display: grid;
  gap: var(--faq-gap);
  padding: clamp(22px, 4vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  background:
    radial-gradient(100% 120% at 0% 0%, rgba(53, 232, 208, 0.14), transparent 58%),
    linear-gradient(180deg, var(--panel), var(--ink));
}

.page-faq .faq-contact h2 {
  margin: 10px 0 0;
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--white);
}

.page-faq .faq-contact .lede {
  margin: 12px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mint);
}

.page-faq .contact-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: rgba(6, 11, 10, 0.55);
}

.page-faq .contact-list > div {
  display: grid;
  gap: 3px;
}

.page-faq .contact-list dt {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mint);
}

.page-faq .contact-list dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-faq .faq-footnote {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mint);
}

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

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

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

  .page-faq .term-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 16px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-faq .terms-layout {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  }

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

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

  .page-faq .faq-layout--reverse {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  }

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

@media (max-width: 520px) {
  .page-faq .faq-hero h1 {
    font-size: clamp(26px, 8vw, 34px);
  }

  .page-faq .faq-panel {
    padding-inline: 14px;
  }

  .page-faq .faq-panel .disclosure__trigger {
    font-size: 15px;
  }

  .page-faq .faq-hero__actions .btn {
    flex: 1 1 auto;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-panel > .disclosure,
  .page-faq .faq-chip,
  .page-faq .term-row {
    transition: none;
  }
}
<<<END>>>