.page-faq {
  --faq-pad: clamp(52px, 8vw, 100px);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  line-height: 1.75;
  padding-bottom: clamp(96px, 12vw, 132px);
}

.page-faq section[id],
.page-faq #login {
  scroll-margin-top: 96px;
}

.page-faq .section-head {
  margin-bottom: clamp(22px, 3.2vw, 40px);
  max-width: 62ch;
}

.page-faq .section-head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.55rem, 3.2vw, 2.5rem);
  line-height: 1.2;
  margin: 10px 0 14px;
  color: var(--paper);
}

.page-faq .lede {
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.1vw, 1.0625rem);
}

/* ---------- HERO ---------- */

.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(20px, 3vw, 34px) clamp(44px, 7vw, 86px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  background:
    radial-gradient(58% 52% at 6% 2%, rgba(139, 92, 255, 0.34), transparent 68%),
    radial-gradient(46% 44% at 96% 0%, rgba(255, 106, 26, 0.26), transparent 70%),
    radial-gradient(40% 40% at 72% 100%, rgba(53, 199, 255, 0.16), transparent 72%),
    var(--ink);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.65;
  background: repeating-linear-gradient(to bottom, rgba(255, 247, 232, 0.038) 0 1px, transparent 1px 4px);
}

.page-faq .breadcrumb {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--muted);
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 46px);
  margin-top: clamp(20px, 3vw, 36px);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 5.4vw, 3.85rem);
  line-height: 1.1;
  letter-spacing: 0.005em;
  margin: 12px 0 18px;
  max-width: 14em;
  text-shadow: 4px 4px 0 rgba(255, 106, 26, 0.32);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-hero__panel {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: clamp(16px, 2.4vw, 24px);
  background: rgba(255, 247, 232, 0.05);
  backdrop-filter: blur(6px);
}

.page-faq .faq-hero__panel-title {
  margin: 0 0 14px;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--yellow);
}

.page-faq .symptom-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .symptom-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 0.9375rem;
}

.page-faq .symptom-list li:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .symptom-list__text {
  color: var(--muted);
  min-width: 0;
}

.page-faq .symptom-list__link {
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fix);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 199, 255, 0.45);
}

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

/* ---------- 四步自检 ---------- */

.page-faq .check {
  padding-block: var(--faq-pad);
}

.page-faq .check__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .scoreboard__pips {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
}

.page-faq .scoreboard__pip {
  flex: 1;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 247, 232, 0.12);
  transition: background 0.28s ease;
}

.page-faq .check__board:has(#s1:checked) .scoreboard__pip:nth-child(1),
.page-faq .check__board:has(#s2:checked) .scoreboard__pip:nth-child(2),
.page-faq .check__board:has(#s3:checked) .scoreboard__pip:nth-child(3),
.page-faq .check__board:has(#s4:checked) .scoreboard__pip:nth-child(4) {
  background: linear-gradient(90deg, var(--orange), var(--yellow) 60%, var(--lime));
}

.page-faq .scoreboard {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .score-step {
  position: relative;
}

.page-faq .score-step__input {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.page-faq .score-step__box {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 14px;
  padding: clamp(14px, 2vw, 20px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 247, 232, 0.03);
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.page-faq .score-step__box:hover {
  border-color: var(--line-strong);
  background: rgba(255, 247, 232, 0.06);
  transform: translateY(-2px);
}

.page-faq .score-step__num {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 6px;
  background: var(--yellow);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: background 0.18s ease, color 0.18s ease;
}

.page-faq .score-step__text {
  min-width: 0;
  font-size: 0.9375rem;
  color: var(--muted);
}

.page-faq .score-step__text strong {
  display: block;
  margin-bottom: 4px;
  font-size: 1rem;
  color: var(--paper);
}

.page-faq .score-step__tick {
  position: relative;
  width: 22px;
  height: 22px;
  border: 2px solid var(--line-strong);
  border-radius: 6px;
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-faq .score-step__tick::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(45deg) scale(0);
  transition: transform 0.18s ease;
}

.page-faq .score-step__input:focus-visible + .score-step__box {
  outline: 2px solid var(--fix);
  outline-offset: 3px;
}

.page-faq .score-step__input:checked + .score-step__box {
  border-color: rgba(168, 255, 62, 0.5);
  background: rgba(168, 255, 62, 0.08);
}

.page-faq .score-step__input:checked + .score-step__box .score-step__num {
  background: var(--lime);
  color: var(--ink);
}

.page-faq .score-step__input:checked + .score-step__box .score-step__tick {
  border-color: var(--lime);
  background: var(--lime);
}

.page-faq .score-step__input:checked + .score-step__box .score-step__tick::after {
  transform: rotate(45deg) scale(1);
}

.page-faq .check__figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--ink-2);
}

.page-faq .check__figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .media-frame__caption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: rgba(255, 247, 232, 0.03);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 兼容对照 ---------- */

.page-faq .compat {
  padding-block: var(--faq-pad);
}

.page-faq .compat__shell {
  border-radius: 16px;
  padding: clamp(18px, 3.4vw, 44px);
  background: var(--paper-2);
  color: var(--ink);
  border: 1px solid rgba(11, 16, 38, 0.16);
  box-shadow: 0 40px 70px -52px rgba(0, 0, 0, 0.9);
}

.page-faq .compat__shell .eyebrow {
  color: rgba(11, 16, 38, 0.56);
}

.page-faq .compat__shell h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.45rem, 2.9vw, 2.25rem);
  line-height: 1.22;
  margin: 8px 0 12px;
  color: var(--ink);
  max-width: 20em;
}

.page-faq .compat__shell .lede {
  color: rgba(11, 16, 38, 0.72);
  font-size: 0.9688rem;
}

.page-faq .compat__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(14px, 2vw, 22px);
}

.page-faq .compat__radio {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.page-faq .compat__chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px solid rgba(11, 16, 38, 0.24);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.page-faq .compat__chip:hover {
  border-color: rgba(11, 16, 38, 0.5);
}

.page-faq .compat__radio:checked + .compat__chip {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.page-faq .compat__radio:focus-visible + .compat__chip {
  outline: 2px solid var(--fix);
  outline-offset: 2px;
}

.page-faq .compat__shell:has(#f-desktop:checked) .compat-card:not([data-dev="desktop"]),
.page-faq .compat__shell:has(#f-phone:checked) .compat-card:not([data-dev="phone"]),
.page-faq .compat__shell:has(#f-tablet:checked) .compat-card:not([data-dev="tablet"]) {
  display: none;
}

.page-faq .compat__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 208px), 1fr));
  gap: clamp(10px, 1.4vw, 16px);
  margin-top: clamp(16px, 2.4vw, 26px);
}

.page-faq .compat-card {
  position: relative;
  height: 168px;
  perspective: 900px;
}

.page-faq .compat-card__flip {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.page-faq .compat-card__inner {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 10px;
  transform-style: preserve-3d;
  transition: transform 0.5s cubic-bezier(0.34, 0.72, 0.3, 1);
  cursor: pointer;
}

.page-faq .compat-card__flip:checked + .compat-card__inner {
  transform: rotateY(180deg);
}

.page-faq .compat-card__flip:focus-visible + .compat-card__inner {
  outline: 2px solid var(--fix);
  outline-offset: 3px;
}

.page-faq .compat-card__face {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(255, 247, 232, 0.14);
  background: var(--ink-2);
  color: var(--paper);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.page-faq .compat-card__face--back {
  justify-content: center;
  gap: 10px;
  transform: rotateY(180deg);
  background: #060A1A;
  border-color: rgba(255, 210, 63, 0.42);
}

.page-faq .cc-top {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-faq .cc-dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.page-faq .cc-dot--lime {
  background: var(--lime);
  box-shadow: 0 0 0 3px rgba(168, 255, 62, 0.2);
}

.page-faq .cc-dot--yellow {
  background: var(--yellow);
  box-shadow: 0 0 0 3px rgba(255, 210, 63, 0.2);
}

.page-faq .cc-dot--cherry {
  background: var(--cherry);
  box-shadow: 0 0 0 3px rgba(255, 51, 85, 0.22);
}

.page-faq .cc-name {
  font-family: var(--font-mono);
  font-size: 0.8438rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-faq .cc-meta {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: rgba(255, 247, 232, 0.68);
}

.page-faq .cc-hint {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.05em;
  color: rgba(255, 247, 232, 0.42);
}

.page-faq .cc-line {
  display: block;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: rgba(255, 247, 232, 0.88);
}

.page-faq .cc-line b {
  display: inline-block;
  margin-right: 6px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--yellow);
}

/* ---------- 登录修复 ---------- */

.page-faq .login-fix {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  margin-top: clamp(28px, 4vw, 46px);
  padding-top: clamp(22px, 3.2vw, 38px);
  border-top: 2px dashed rgba(11, 16, 38, 0.22);
}

.page-faq .login-fix h3 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.2rem, 2.2vw, 1.65rem);
  line-height: 1.3;
  margin: 8px 0 10px;
  color: var(--ink);
}

.page-faq .login-fix__copy > p {
  color: rgba(11, 16, 38, 0.74);
  font-size: 0.9375rem;
  margin: 0;
}

.page-faq .login-steps {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .login-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: rgba(11, 16, 38, 0.76);
}

.page-faq .login-steps__num {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: var(--grape);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
}

.page-faq .login-steps strong {
  display: block;
  color: var(--ink);
  font-weight: 700;
}

.page-faq .login-fix__note {
  margin: 16px 0 0;
  padding: 10px 14px;
  border-left: 3px solid var(--orange);
  background: rgba(255, 106, 26, 0.1);
  font-size: 0.875rem;
  color: rgba(11, 16, 38, 0.8);
}

.page-faq .login-fix__figure {
  margin: 0;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(11, 16, 38, 0.18);
  background: var(--ink-2);
}

.page-faq .login-fix__figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .compat__shell .media-frame__caption {
  color: rgba(11, 16, 38, 0.62);
  background: rgba(255, 247, 232, 0.55);
  border-top-color: rgba(11, 16, 38, 0.14);
}

/* ---------- 设备切换 ---------- */

.page-faq .switch {
  padding-block: var(--faq-pad);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(139, 92, 255, 0.1), transparent 70%);
}

.page-faq .switch__track {
  list-style: none;
  margin: 0;
  padding: 0 0 14px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(238px, 1fr);
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-color: var(--ink-3) transparent;
}

.page-faq .switch__track > * {
  scroll-snap-align: start;
}

.page-faq .switch-step {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(16px, 2.4vw, 24px);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(255, 247, 232, 0.07), rgba(255, 247, 232, 0.02));
}

.page-faq .switch-step__idx {
  align-self: flex-start;
  padding: 3px 9px;
  border-radius: 4px;
  background: var(--yellow);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.page-faq .switch-step h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  line-height: 1.4;
  color: var(--paper);
}

.page-faq .switch-step p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--muted);
}

.page-faq .switch-step__link {
  margin-top: auto;
  padding-top: 8px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--fix);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  align-self: flex-start;
}

.page-faq .switch-step__link:hover {
  border-bottom-color: var(--fix);
}

/* ---------- 人工协助 ---------- */

.page-faq .assist {
  padding-block: var(--faq-pad);
  border-top: 1px solid var(--line);
  background: radial-gradient(70% 84% at 100% 0%, rgba(255, 106, 26, 0.15), transparent 70%);
}

.page-faq .assist__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
}

.page-faq .assist__copy h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 3vw, 2.3rem);
  line-height: 1.2;
  margin: 10px 0 14px;
}

.page-faq .assist__copy p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.9688rem;
}

.page-faq .assist__copy a {
  color: var(--fix);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 199, 255, 0.45);
}

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

.page-faq .assist__cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  align-content: start;
}

.page-faq .assist-card {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: rgba(255, 247, 232, 0.05);
}

.page-faq .assist-card--wide {
  grid-column: 1 / -1;
}

.page-faq .assist-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--yellow);
}

.page-faq .assist-card__value {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .assist-card .copy-btn {
  justify-self: start;
  margin-top: 2px;
}

/* ---------- 悬浮协助条 ---------- */

.page-faq .assist-bar {
  position: fixed;
  left: 50%;
  bottom: clamp(10px, 1.6vw, 18px);
  transform: translateX(-50%);
  z-index: 60;
  width: min(calc(100% - 24px), 940px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px 14px;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(11, 16, 38, 0.94);
  box-shadow: 0 18px 40px -24px rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(10px);
  font-family: var(--font-body);
  font-size: 0.8125rem;
}

.page-faq .assist-bar__dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 4px rgba(168, 255, 62, 0.18);
}

.page-faq .assist-bar__text {
  color: var(--muted);
}

.page-faq .assist-bar__copy {
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.page-faq .assist-bar__link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fix);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 199, 255, 0.45);
}

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

/* ---------- 响应式 ---------- */

@media (max-width: 560px) {
  .page-faq .assist-bar {
    border-radius: 14px;
    justify-content: flex-start;
    padding: 10px 14px;
  }

  .page-faq .assist-bar__text {
    flex: 1 1 100%;
    font-size: 0.75rem;
    line-height: 1.5;
  }

  .page-faq .compat-card {
    height: 156px;
  }
}

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

@media (min-width: 900px) {
  .page-faq .login-fix {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-faq .assist__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
  }
}

@media (min-width: 920px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }
}

@media (min-width: 980px) {
  .page-faq .check__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .scoreboard__pip,
  .page-faq .score-step__box,
  .page-faq .score-step__num,
  .page-faq .score-step__tick,
  .page-faq .score-step__tick::after,
  .page-faq .compat-card__inner,
  .page-faq .compat__chip {
    transition: none;
  }

  .page-faq .score-step__box:hover {
    transform: none;
  }
}
<<<END>>>