.page-faq {
  --faq-hair: rgba(52, 227, 208, 0.14);
  --faq-hair-2: rgba(183, 198, 190, 0.18);
  --faq-index-w: 268px;
  --faq-gap: clamp(20px, 3vw, 40px);
  padding-bottom: clamp(56px, 9vw, 110px);
  background:
    radial-gradient(130% 70% at 88% -8%, rgba(52, 227, 208, 0.11), transparent 62%),
    radial-gradient(90% 60% at 0% 30%, rgba(255, 122, 46, 0.06), transparent 70%),
    var(--ink-900);
  color: var(--paper);
}

.page-faq .faq-top {
  padding-top: clamp(22px, 4vw, 52px);
}

.page-faq .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

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

.page-faq .breadcrumbs a:hover {
  color: var(--paper);
}

.page-faq .breadcrumbs__sep {
  color: rgba(183, 198, 190, 0.5);
}

.page-faq .faq-hero {
  margin-top: clamp(26px, 5vw, 60px);
  padding-bottom: clamp(26px, 4vw, 44px);
  border-bottom: 1px solid var(--faq-hair);
  position: relative;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 96px;
  height: 1px;
  background: linear-gradient(90deg, var(--orange), transparent);
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 18px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-faq .faq-hero h1 {
  margin: 0;
  max-width: 15em;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 6vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  max-width: 46em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
}

.page-faq .faq-hero__facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 7px 13px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius);
  background: rgba(12, 42, 32, 0.7);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-faq .faq-hero__facts .mono {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

/* 主体双栏 */
.page-faq .faq-shell {
  margin-top: clamp(30px, 5vw, 60px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
}

/* 左栏索引 */
.page-faq .faq-index {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-faq .faq-index__head {
  margin: 0;
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--mist);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--faq-hair);
}

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

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px 9px 12px;
  border-left: 2px solid transparent;
  color: var(--mist);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  transition: background 200ms var(--ease), color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: var(--ink-700);
  color: var(--paper);
  border-left-color: var(--cyan);
}

.page-faq .faq-index__link--entry {
  border-left-color: rgba(52, 227, 208, 0.35);
}

.page-faq .faq-index__link--data {
  border-left-color: rgba(243, 198, 58, 0.35);
}

.page-faq .faq-index__link--subs {
  border-left-color: rgba(255, 122, 46, 0.38);
}

.page-faq .faq-index__link--help {
  border-left-color: rgba(183, 198, 190, 0.28);
}

.page-faq .faq-index__no {
  font-size: 12px;
  color: rgba(183, 198, 190, 0.7);
}

.page-faq .faq-index__card {
  padding: 18px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(12, 42, 32, 0.95), rgba(7, 26, 20, 0.9));
}

.page-faq .faq-index__card-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--paper);
}

.page-faq .faq-index__k {
  margin: 12px 0 4px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-faq .faq-index__v {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--cyan);
  word-break: break-all;
}

.page-faq .faq-index__note {
  margin: 14px 0 16px;
  font-size: 12.5px;
  line-height: 1.75;
  color: rgba(183, 198, 190, 0.86);
}

/* 右栏问题块 */
.page-faq .faq-body {
  display: grid;
  gap: clamp(34px, 5vw, 64px);
  min-width: 0;
}

.page-faq .faq-block {
  padding-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--faq-hair);
  scroll-margin-top: 88px;
}

.page-faq .faq-block:first-child {
  border-top: none;
  padding-top: 0;
}

.page-faq .faq-block__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  align-items: baseline;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-faq .faq-block__no {
  font-family: var(--font-score);
  font-weight: 800;
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1;
  color: var(--orange);
  transform: skewX(-3deg);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-block__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.6vw, 1.85rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-block__sub {
  grid-column: 2;
  margin: 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* 三步 */
.page-faq .steps {
  list-style: none;
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .steps__item {
  padding: 18px 18px 20px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius);
  background: var(--ink-800);
  box-shadow: 0 1px 0 rgba(52, 227, 208, 0.06) inset;
}

.page-faq .steps__no {
  display: inline-block;
  font-family: var(--font-score);
  font-weight: 800;
  font-size: 22px;
  color: var(--cyan);
  transform: skewX(-3deg);
  margin-bottom: 8px;
}

.page-faq .steps__item h3 {
  margin: 0 0 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15.5px;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .steps__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* 图片 */
.page-faq .faq-figure {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-800);
}

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

.page-faq .faq-figure figcaption {
  padding: 11px 14px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
  border-top: 1px solid var(--faq-hair);
  background: rgba(7, 26, 20, 0.6);
}

/* 折叠问答 */
.page-faq .qa {
  border-left: 2px solid transparent;
  border-bottom: 1px solid var(--faq-hair-2);
  transition: border-color 200ms var(--ease);
}

.page-faq .qa[open] {
  border-left-color: var(--orange);
}

.page-faq .qa__q {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 15px 34px 15px 14px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 15px;
  line-height: 1.65;
  color: var(--paper);
  transition: color 180ms var(--ease);
}

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

.page-faq .qa__q::after {
  content: "+";
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--cyan);
  transition: transform 220ms var(--ease), color 180ms var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
  color: var(--orange);
}

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

.page-faq .qa__a {
  padding: 0 20px 18px 14px;
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 44em;
  font-size: 14px;
  line-height: 1.9;
  color: var(--mist);
}

/* 双通道对比 */
.page-faq .duo {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-faq .duo__card {
  padding: 20px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius);
  background: var(--ink-800);
}

.page-faq .duo__card--cyan {
  border-top: 2px solid var(--cyan);
}

.page-faq .duo__card--orange {
  border-top: 2px solid var(--orange);
}

.page-faq .duo__tag {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--paper);
}

.page-faq .duo__text {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .duo__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.page-faq .duo__list li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(183, 198, 190, 0.9);
}

.page-faq .duo__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--cyan-2);
}

.page-faq .duo__card--orange .duo__list li::before {
  background: var(--orange);
}

/* 三类数据 */
.page-faq .notes {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-faq .notes__item {
  padding: 18px;
  border-radius: var(--radius);
  background: var(--ink-700);
  border: 1px solid rgba(183, 198, 190, 0.12);
}

.page-faq .notes__item--a {
  border-left: 3px solid var(--cyan);
}

.page-faq .notes__item--b {
  border-left: 3px solid var(--yellow);
}

.page-faq .notes__item--c {
  border-left: 3px solid var(--red);
}

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

.page-faq .notes__v {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  font-variant-numeric: tabular-nums;
  color: var(--paper);
}

.page-faq .notes__d {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(183, 198, 190, 0.88);
}

/* 红黄牌区 */
.page-faq .cardwrap {
  display: grid;
  gap: 18px;
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-faq .cardwrap__text p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--mist);
}

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

.page-faq .legend {
  list-style: none;
  margin: 0;
  padding: 16px 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  border: 1px dashed var(--faq-hair-2);
  border-radius: var(--radius);
  background: rgba(12, 42, 32, 0.55);
}

.page-faq .legend__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--mist);
}

.page-faq .legend__dot {
  width: 14px;
  height: 18px;
  border-radius: 1px;
  display: inline-block;
}

.page-faq .legend__dot--yellow {
  background: var(--yellow);
}

.page-faq .legend__dot--red {
  background: var(--red);
}

.page-faq .legend__dot--both {
  background: linear-gradient(180deg, var(--yellow) 0 50%, var(--red) 50% 100%);
}

/* 订阅键值行 */
.page-faq .kv {
  list-style: none;
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  padding: 0;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .kv__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .kv__k {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .kv__v {
  font-size: 14px;
  line-height: 1.8;
  color: var(--paper);
}

.page-faq .kv__v.mono {
  font-family: var(--font-mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

/* 联系准备清单 */
.page-faq .checklist {
  list-style: none;
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .checklist__item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius);
  background: rgba(12, 42, 32, 0.7);
}

.page-faq .checklist__mark {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-900);
  background: var(--cyan);
  padding: 2px 7px;
  border-radius: 1px;
}

.page-faq .checklist__text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
}

.page-faq .reach {
  display: grid;
  gap: 1px;
  margin-bottom: clamp(18px, 2.6vw, 26px);
  background: var(--faq-hair);
  border: 1px solid var(--faq-hair);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .reach__cell {
  padding: 14px 16px;
  background: var(--ink-800);
}

.page-faq .reach__k {
  margin: 0 0 6px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-faq .reach__v {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--cyan);
  word-break: break-all;
}

/* 段内跳转提示 */
.page-faq .faq-more {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(183, 198, 190, 0.82);
}

.page-faq .faq-more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(52, 227, 208, 0.4);
}

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

/* 尾部行动条 */
.page-faq .faq-cta {
  display: grid;
  gap: 12px;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--faq-hair);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(18, 56, 43, 0.9), rgba(7, 26, 20, 0.9));
}

.page-faq .faq-cta__text {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  line-height: 1.4;
  color: var(--paper);
}

.page-faq .btn {
  justify-self: start;
}

/* 断点 */
@media (min-width: 620px) {
  .page-faq .duo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .kv__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }

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

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

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto auto;
    align-items: center;
    gap: 16px;
  }
}

@media (min-width: 760px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

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

  .page-faq .notes__item--b {
    margin-top: 16px;
  }

  .page-faq .notes__item--c {
    margin-top: 32px;
  }

  .page-faq .cardwrap {
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 24px;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: clamp(30px, 4.5vw, 64px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 24px;
  }

  .page-faq .faq-hero h1 {
    max-width: 12em;
  }
}

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