.page-faq {
  --faq-line: rgba(20, 52, 92, .55);
  --faq-muted: rgba(245, 248, 255, .76);
  --faq-surface: rgba(10, 26, 51, .68);
  color: var(--white);
  background-color: var(--ink);
  background-image:
    radial-gradient(circle at 82% 2%, rgba(40, 243, 225, .10), transparent 44%),
    radial-gradient(circle at 4% 24%, rgba(47, 125, 255, .12), transparent 46%),
    linear-gradient(rgba(20, 52, 92, .28) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 52, 92, .28) 1px, transparent 1px);
  background-size: auto, auto, 76px 76px, 76px 76px;
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(20px, 3.5vw, 36px) 0 clamp(32px, 5vw, 64px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 0 auto;
  width: 62%;
  background: linear-gradient(135deg, rgba(40, 243, 225, .10), rgba(47, 125, 255, .06) 58%, transparent 82%);
  clip-path: polygon(22% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero > .shell {
  position: relative;
  z-index: 2;
}

.page-faq .breadcrumb {
  margin-bottom: 20px;
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-faq .faq-hero-copy .eyebrow {
  margin: 0;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(2rem, 7vw, 3.5rem);
  line-height: 1.16;
  letter-spacing: .02em;
  font-weight: 800;
  color: var(--white);
}

.page-faq .faq-lead {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--faq-muted);
}

.page-faq .faq-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero-tags li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  background: rgba(27, 47, 78, .42);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--steel);
}

.page-faq .faq-hero-tags li::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-faq .faq-hero-card {
  position: relative;
  padding: 20px 18px 18px;
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(27, 47, 78, .95), rgba(10, 26, 51, .96));
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
  box-shadow: 0 20px 46px rgba(0, 0, 0, .38);
}

.page-faq .faq-hero-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 46%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(40, 243, 225, 0));
}

.page-faq .faq-card-label {
  margin: 0 0 14px;
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-faq .faq-contact-row {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 10px 0;
  border-top: 1px dashed var(--line-soft);
}

.page-faq .faq-contact-k {
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--steel);
}

.page-faq .faq-contact-v {
  font-size: .9rem;
  color: var(--white);
  word-break: break-all;
  line-height: 1.5;
}

.page-faq .faq-card-note {
  margin: 14px 0 18px;
  font-size: .82rem;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 索引 + 问答 ---------- */
.page-faq .faq-body {
  padding: clamp(6px, 2vw, 18px) 0 clamp(30px, 5vw, 56px);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-faq .faq-tools {
  padding: 14px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(10, 26, 51, .74);
}

.page-faq .faq-tools-label {
  margin: 0 0 10px;
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-faq .faq-filters {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.page-faq .faq-filter {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  border: 1px solid transparent;
  border-left: 2px solid transparent;
  border-radius: var(--r-sm);
  background: rgba(27, 47, 78, .40);
  color: var(--steel);
  font-family: var(--font-sans);
  font-size: .85rem;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-filter:hover {
  color: var(--white);
  border-color: var(--line);
}

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

.page-faq .faq-filter[aria-pressed="true"] {
  color: var(--white);
  border-color: rgba(40, 243, 225, .34);
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(40, 243, 225, .16), rgba(47, 125, 255, .06));
}

.page-faq .faq-filter-num {
  font-size: .7rem;
  color: var(--cyan);
}

.page-faq .faq-filter-count {
  font-size: .68rem;
  color: var(--steel);
}

.page-faq .faq-side-note {
  margin: 12px 2px 0;
  font-size: .8rem;
  line-height: 1.65;
  color: var(--steel);
}

.page-faq .faq-main-head {
  margin-bottom: 16px;
}

.page-faq .faq-main-head h2 {
  margin: 0;
  font-size: clamp(1.3rem, 3.4vw, 1.75rem);
  font-weight: 800;
  letter-spacing: .03em;
  color: var(--white);
}

.page-faq .faq-main-head p {
  margin: 8px 0 0;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(10, 26, 51, .58);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(40, 243, 225, .30);
}

.page-faq .faq-item[open] {
  border-color: rgba(40, 243, 225, .45);
  background: linear-gradient(180deg, rgba(27, 47, 78, .92), rgba(10, 26, 51, .78));
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  list-style: none;
  cursor: pointer;
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .faq-item-num {
  flex: none;
  font-size: .72rem;
  color: var(--cyan);
  padding-top: 2px;
}

.page-faq .faq-item-q {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--white);
}

.page-faq .faq-item-cat {
  flex: none;
  padding: 2px 6px;
  border: 1px solid rgba(40, 243, 225, .28);
  border-radius: 4px;
  font-size: .68rem;
  color: var(--cyan);
}

.page-faq .faq-toggle {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  border: 1px solid var(--line);
}

.page-faq .faq-toggle::before,
.page-faq .faq-toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--cyan);
  transform: translate(-50%, -50%);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-toggle::before {
  width: 10px;
  height: 1px;
}

.page-faq .faq-toggle::after {
  width: 1px;
  height: 10px;
}

.page-faq .faq-item[open] .faq-toggle::after {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-answer {
  padding: 0 16px 18px 44px;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--faq-muted);
}

.page-faq .faq-item[open] .faq-answer {
  animation: faq-reveal .2s var(--ease);
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
}

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

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

.page-faq .faq-answer a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-bullets {
  margin: 10px 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.page-faq .faq-bullets li {
  position: relative;
  padding-left: 16px;
}

.page-faq .faq-bullets li::before {
  content: "";
  position: absolute;
  top: .72em;
  left: 0;
  width: 6px;
  height: 1px;
  background: var(--blue);
}

.page-faq .faq-steps {
  counter-reset: st;
  list-style: none;
  margin: 10px 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-steps > li {
  position: relative;
  padding-left: 28px;
}

.page-faq .faq-steps > li::before {
  counter-increment: st;
  content: counter(st, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--cyan);
}

.page-faq .faq-note {
  margin: 12px 0 0;
  padding-left: 10px;
  border-left: 2px solid var(--blue);
  font-size: .84rem;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 注册第 2 步步骤带 ---------- */
.page-faq .register-band {
  padding: clamp(14px, 3vw, 28px) 0 clamp(34px, 6vw, 64px);
}

.page-faq .register-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  padding: clamp(20px, 3.4vw, 38px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    linear-gradient(115deg, rgba(10, 26, 51, .96) 0%, rgba(27, 47, 78, .86) 58%, rgba(5, 11, 24, .96) 100%);
  overflow: hidden;
}

.page-faq .register-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(118deg, rgba(40, 243, 225, .07) 0 1px, transparent 1px 24px);
  pointer-events: none;
}

.page-faq .register-copy,
.page-faq .register-media {
  position: relative;
  z-index: 1;
}

.page-faq .register-copy .eyebrow {
  margin: 0;
}

.page-faq .register-copy h2 {
  margin: 10px 0 0;
  font-size: clamp(1.35rem, 3.8vw, 2rem);
  line-height: 1.35;
  font-weight: 800;
  letter-spacing: .03em;
  color: var(--white);
}

.page-faq .register-lead {
  margin: 12px 0 0;
  font-size: .94rem;
  line-height: 1.75;
  color: var(--faq-muted);
}

.page-faq .reg-steps {
  counter-reset: reg;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin: 24px 0 22px;
  padding: 0;
}

.page-faq .reg-steps > li {
  position: relative;
  padding-top: 38px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .reg-steps > li::before {
  counter-increment: reg;
  content: "0" counter(reg);
  position: absolute;
  top: 6px;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: 1px solid rgba(40, 243, 225, .5);
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--cyan);
  background: rgba(40, 243, 225, .08);
}

.page-faq .reg-steps h3 {
  margin: 0 0 6px;
  font-size: .98rem;
  font-weight: 600;
  color: var(--white);
}

.page-faq .reg-steps p {
  margin: 0;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq .register-media {
  margin: 0;
  width: 100%;
}

.page-faq .register-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--r-sm);
}

.page-faq .register-media .media-caption {
  margin-top: 8px;
  font-size: .76rem;
  line-height: 1.6;
  color: var(--steel);
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-help {
  padding: 0 0 clamp(10px, 3vw, 20px);
}

.page-faq .help-head {
  max-width: 60ch;
  margin-bottom: 20px;
}

.page-faq .help-head .eyebrow {
  margin: 0;
}

.page-faq .help-head h2 {
  margin: 10px 0 0;
  font-size: clamp(1.4rem, 4vw, 2.1rem);
  line-height: 1.32;
  font-weight: 800;
  letter-spacing: .03em;
  color: var(--white);
}

.page-faq .help-head p {
  margin: 10px 0 0;
  font-size: .92rem;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq .help-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-faq .help-card {
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(165deg, rgba(27, 47, 78, .72), rgba(10, 26, 51, .78));
}

.page-faq .help-card h3 {
  margin: 0 0 12px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
}

.page-faq .help-row {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .help-row:last-of-type {
  border-bottom: 0;
}

.page-faq .help-k {
  font-size: .76rem;
  letter-spacing: .05em;
  color: var(--steel);
}

.page-faq .help-v {
  font-size: .88rem;
  line-height: 1.55;
  color: var(--white);
  word-break: break-all;
}

.page-faq .help-card .btn {
  margin-top: 14px;
}

.page-faq .help-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-faq .help-list li {
  position: relative;
  padding-left: 16px;
  font-size: .88rem;
  line-height: 1.7;
  color: var(--faq-muted);
}

.page-faq .help-list li::before {
  content: "";
  position: absolute;
  top: .68em;
  left: 0;
  width: 6px;
  height: 6px;
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
}

.page-faq .help-note {
  margin: 14px 0 0;
  font-size: .84rem;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq .help-note a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .help-media {
  margin: 0;
  width: 100%;
}

.page-faq .help-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--r-sm);
}

.page-faq .help-media .media-caption {
  margin-top: 8px;
  font-size: .76rem;
  line-height: 1.6;
  color: var(--steel);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .help-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .help-media {
    grid-column: 1 / -1;
  }

  .page-faq .faq-contact-row,
  .page-faq .help-row {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    gap: 14px;
  }

  .page-faq .faq-contact-v,
  .page-faq .help-v {
    text-align: right;
    max-width: 68%;
  }

  .page-faq .reg-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .reg-steps > li:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 18px;
    left: 32px;
    right: -8px;
    height: 1px;
    background: linear-gradient(90deg, rgba(40, 243, 225, .7), rgba(40, 243, 225, .06));
    transform: rotate(-7deg);
    transform-origin: left center;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(300px, .82fr);
    gap: 42px;
    align-items: start;
  }

  .page-faq .register-inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: center;
    gap: 34px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: 268px minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--hd-h) + 20px);
    align-self: start;
  }

  .page-faq .faq-filters {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-filter {
    width: 100%;
    justify-content: flex-start;
  }

  .page-faq .faq-filter-count {
    margin-left: auto;
  }
}

@media (max-width: 560px) {
  .page-faq .faq-item-cat {
    display: none;
  }

  .page-faq .faq-item summary {
    padding: 14px 12px;
    gap: 10px;
  }

  .page-faq .faq-answer {
    padding: 0 12px 16px 36px;
    font-size: .92rem;
  }

  .page-faq .faq-hero::before {
    width: 88%;
    opacity: .6;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-answer {
    animation: none;
  }

  .page-faq .faq-toggle::before,
  .page-faq .faq-toggle::after,
  .page-faq .faq-filter,
  .page-faq .faq-item {
    transition: none;
  }
}
<<<END>>>