.page-faq {
  --faq-gap: clamp(56px, 8vw, 112px);
  --faq-panel: rgba(20, 32, 52, 0.62);
  --faq-row: rgba(14, 22, 38, 0.62);
  --faq-row-hi: rgba(20, 32, 52, 0.86);
  display: block;
}

.page-faq .shell {
  padding-inline: var(--gutter);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(30px, 5vw, 56px) 0 clamp(40px, 6vw, 72px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -30% -12% auto -12%;
  height: 130%;
  background:
    radial-gradient(56% 62% at 80% 20%, rgba(63, 224, 208, 0.16), transparent 70%),
    radial-gradient(48% 56% at 10% 86%, rgba(240, 71, 154, 0.11), transparent 72%);
  pointer-events: none;
}

.page-faq .faq-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  }
}

.page-faq .crumbs {
  margin: 0 0 clamp(18px, 3vw, 28px);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  max-width: 15em;
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.16;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--fg);
}

.page-faq .faq-lead {
  margin: 20px 0 0;
  max-width: 40em;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--fg-2);
}

.page-faq .faq-hero-panel {
  position: relative;
  padding: 22px 20px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(158deg, rgba(20, 32, 52, 0.82), rgba(14, 22, 38, 0.74));
  backdrop-filter: blur(10px);
  overflow: hidden;
}

.page-faq .faq-hero-panel::before {
  content: "";
  position: absolute;
  inset: 18px auto 18px 0;
  width: 2px;
  background: var(--grad-signal);
  border-radius: 2px;
}

.page-faq .faq-panel-head {
  margin: 0 0 4px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--fg-2);
}

.page-faq .faq-wave {
  display: block;
  width: 100%;
  height: 72px;
  margin: 6px 0 14px;
}

.page-faq .faq-wave path {
  fill: none;
  stroke: var(--cy);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  filter: drop-shadow(0 0 6px rgba(63, 224, 208, 0.45));
  animation: faq-trace 5.5s linear infinite;
}

@keyframes faq-trace {
  0% { stroke-dashoffset: 1; }
  58% { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -1; }
}

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

.page-faq .faq-hero-list a {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 12px 12px 12px 14px;
  border-radius: var(--r-sm);
  color: var(--fg);
  font-size: 15px;
  line-height: 1.55;
  text-decoration: none;
  transition: background 0.22s var(--ease), color 0.22s var(--ease);
}

.page-faq .faq-hero-list a:hover,
.page-faq .faq-hero-list a:focus-visible {
  background: rgba(63, 224, 208, 0.1);
}

.page-faq .faq-k {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cy);
  letter-spacing: 0.08em;
}

.page-faq .faq-hero-list em {
  display: none;
  margin-left: auto;
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--fg-2);
  white-space: nowrap;
}

@media (min-width: 560px) {
  .page-faq .faq-hero-list em { display: inline; }
}

/* ---------- 通用小节头 ---------- */

.page-faq .faq-sec-head {
  margin-bottom: clamp(26px, 4vw, 42px);
}

.page-faq .faq-sec-note {
  margin: 14px 0 0;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--fg-2);
}

/* ---------- 场景索引 ---------- */

.page-faq .faq-nav {
  margin-top: var(--faq-gap);
}

.page-faq .faq-nav-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

@media (min-width: 720px) {
  .page-faq .faq-nav-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-nav-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--faq-panel);
  color: var(--fg);
  text-decoration: none;
  overflow: hidden;
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-faq .faq-nav-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: var(--grad-signal);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s var(--ease);
}

.page-faq .faq-nav-card:hover,
.page-faq .faq-nav-card:focus-visible {
  border-color: rgba(63, 224, 208, 0.55);
  transform: translateY(-3px);
}

.page-faq .faq-nav-card:hover::after,
.page-faq .faq-nav-card:focus-visible::after {
  transform: scaleX(1);
}

.page-faq .faq-nav-idx {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--cy);
}

.page-faq .faq-nav-card h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .faq-nav-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--fg-2);
}

.page-faq .faq-nav-more {
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--cy-soft);
}

/* ---------- 图片 ---------- */

.page-faq .faq-figure {
  margin: clamp(28px, 4vw, 44px) 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  object-fit: cover;
  background: var(--ink-1);
}

.page-faq .media-caption {
  margin: 12px 0 0;
  max-width: 52em;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--fg-2);
}

/* ---------- 问答分组 ---------- */

.page-faq .faq-group {
  margin-top: var(--faq-gap);
}

.page-faq .faq-group-head {
  display: flex;
  align-items: flex-start;
  gap: clamp(14px, 2.6vw, 26px);
  margin-bottom: clamp(22px, 3.4vw, 36px);
}

.page-faq .faq-group-idx {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4.2vw, 42px);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: 0.02em;
  background: var(--grad-signal);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-faq .faq-group-head h2 {
  margin: 0;
}

.page-faq .faq-group-head > div {
  min-width: 0;
}

.page-faq .faq-group-note {
  margin: 12px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.82;
  color: var(--fg-2);
}

/* ---------- 排查步骤 ---------- */

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

.page-faq .faq-step {
  counter-increment: faqstep;
}

.page-faq .faq-step label {
  position: relative;
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--faq-row);
  cursor: pointer;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .faq-step label:hover {
  border-color: rgba(63, 224, 208, 0.42);
}

.page-faq .faq-step input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-faq .faq-step-box {
  width: 20px;
  height: 20px;
  margin-top: 3px;
  border: 1px solid var(--line);
  border-radius: 6px;
  display: grid;
  place-items: center;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-step-box::after {
  content: "";
  width: 9px;
  height: 5px;
  margin-top: -2px;
  border-left: 2px solid var(--ink-0);
  border-bottom: 2px solid var(--ink-0);
  transform: rotate(-45deg) scale(0);
  transition: transform 0.18s var(--ease);
}

.page-faq .faq-step input:checked ~ .faq-step-box {
  background: var(--cy);
  border-color: var(--cy);
}

.page-faq .faq-step input:checked ~ .faq-step-box::after {
  transform: rotate(-45deg) scale(1);
}

.page-faq .faq-step input:focus-visible ~ .faq-step-box {
  outline: 2px solid var(--cy-soft);
  outline-offset: 3px;
}

.page-faq .faq-step-text {
  display: block;
  padding-left: 12px;
  border-left: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.82;
  color: var(--fg-2);
  transition: opacity 0.2s var(--ease);
}

.page-faq .faq-step input:checked ~ .faq-step-text {
  opacity: 0.6;
}

.page-faq .faq-step-text b {
  display: block;
  margin-bottom: 4px;
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
}

.page-faq .faq-step-text b::before {
  content: counter(faqstep, decimal-leading-zero);
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--cy);
}

/* ---------- 问答条目 ---------- */

.page-faq .faq-qa {
  display: grid;
  gap: 10px;
  counter-reset: faqqa;
}

.page-faq .faq-item {
  counter-increment: faqqa;
}

.page-faq .faq-item summary {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) 18px;
  gap: 14px;
  align-items: center;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--faq-row);
  cursor: pointer;
  list-style: none;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease);
}

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

.page-faq .faq-item summary::before {
  content: "Q" counter(faqqa, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cy);
}

.page-faq .faq-item summary:hover {
  border-color: rgba(63, 224, 208, 0.42);
}

.page-faq .faq-q {
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--fg);
}

.page-faq .faq-toggle {
  position: relative;
  width: 18px;
  height: 18px;
}

.page-faq .faq-toggle::before,
.page-faq .faq-toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1.6px;
  margin-top: -0.8px;
  background: var(--fg-2);
  transition: transform 0.24s var(--ease), background 0.24s var(--ease);
}

.page-faq .faq-toggle::after {
  transform: rotate(90deg);
}

.page-faq .faq-item[open] summary {
  border-color: rgba(63, 224, 208, 0.5);
  background: var(--faq-row-hi);
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.page-faq .faq-item[open] .faq-toggle::before,
.page-faq .faq-item[open] .faq-toggle::after {
  background: var(--cy);
}

.page-faq .faq-item[open] .faq-toggle::after {
  transform: rotate(0deg);
}

.page-faq .faq-answer {
  position: relative;
  padding: 0 20px 22px;
  border: 1px solid rgba(63, 224, 208, 0.5);
  border-top: 0;
  border-radius: 0 0 var(--r-md) var(--r-md);
  background: var(--faq-panel);
  animation: faq-rise 0.26s var(--ease) both;
}

.page-faq .faq-answer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20px;
  width: 28px;
  height: 1px;
  background: var(--cy);
}

.page-faq .faq-answer p {
  margin: 16px 0 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--fg-2);
}

@keyframes faq-rise {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 人工协助 ---------- */

.page-faq .faq-assist {
  margin-top: var(--faq-gap);
}

.page-faq .faq-assist-panel {
  position: relative;
  padding: clamp(26px, 4vw, 44px) clamp(22px, 3.4vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    var(--grad-veil),
    linear-gradient(150deg, rgba(14, 22, 38, 0.92), rgba(7, 11, 20, 0.92));
  overflow: hidden;
}

.page-faq .faq-assist-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: var(--grad-signal);
  opacity: 0.7;
}

.page-faq .faq-assist-head {
  max-width: 46em;
}

.page-faq .faq-prep {
  list-style: none;
  margin: clamp(24px, 3.6vw, 36px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-prep li {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 16px;
  align-items: baseline;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-prep-k {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--cy);
}

.page-faq .faq-prep-v {
  font-size: 15px;
  line-height: 1.78;
  color: var(--fg-2);
}

.page-faq .faq-channels {
  margin-top: clamp(24px, 3.6vw, 34px);
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

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

.page-faq .faq-channel {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(7, 11, 20, 0.5);
}

.page-faq .faq-channel-k {
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--fg-2);
}

.page-faq .faq-channel-v {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--cy-soft);
  overflow-wrap: anywhere;
}

/* ---------- 继续查看 ---------- */

.page-faq .faq-next {
  margin-top: var(--faq-gap);
  padding-bottom: clamp(36px, 6vw, 72px);
}

.page-faq .faq-next-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

@media (min-width: 720px) {
  .page-faq .faq-next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-next-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  padding: 22px 22px 22px 26px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(14, 22, 38, 0.66);
  color: var(--fg);
  text-decoration: none;
  overflow: hidden;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-faq .faq-next-card::before {
  content: "";
  position: absolute;
  inset: 20px auto 20px 0;
  width: 2px;
  background: var(--line);
  transition: background 0.24s var(--ease);
}

.page-faq .faq-next-card:hover,
.page-faq .faq-next-card:focus-visible {
  border-color: rgba(63, 224, 208, 0.5);
  background: rgba(20, 32, 52, 0.8);
  transform: translateY(-3px);
}

.page-faq .faq-next-card:hover::before,
.page-faq .faq-next-card:focus-visible::before {
  background: var(--grad-signal);
}

.page-faq .faq-next-k {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--cy);
}

.page-faq .faq-next-t {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .faq-next-d {
  font-size: 14px;
  line-height: 1.78;
  color: var(--fg-2);
}

/* ---------- 动效节制 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-wave path {
    animation: none;
    stroke-dashoffset: 0;
  }
  .page-faq .faq-answer {
    animation: none;
  }
  .page-faq .faq-nav-card,
  .page-faq .faq-next-card {
    transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
  }
  .page-faq .faq-nav-card:hover,
  .page-faq .faq-nav-card:focus-visible,
  .page-faq .faq-next-card:hover,
  .page-faq .faq-next-card:focus-visible {
    transform: none;
  }
}
<<<END>>>