.page-faq {
  --faq-on-paper: #101828;
  --faq-paper-line: #D8D2C4;
  --faq-ease: cubic-bezier(.2, .7, .2, 1);
  display: block;
}

.page-faq .faq-wrap {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumbwrap {
  max-width: 1240px;
  margin: 0 auto;
  padding: 22px clamp(20px, 4vw, 48px) 0;
}
.page-faq .faq-crumbwrap .wb-crumb {
  font-family: var(--wb-font-mono);
  font-size: 12px;
  letter-spacing: .04em;
}
.page-faq .faq-crumbwrap .wb-crumb__link {
  color: var(--wb-muted);
  text-decoration: none;
  border-bottom: 1px dashed transparent;
  transition: color .2s var(--faq-ease), border-color .2s var(--faq-ease);
}
.page-faq .faq-crumbwrap .wb-crumb__link:hover {
  color: var(--wb-gold-bright);
  border-bottom-color: var(--wb-gold-bright);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(40px, 6vw, 84px) 0 clamp(48px, 7vw, 96px);
  overflow: hidden;
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(192,138,46,.10), transparent 42%),
    repeating-linear-gradient(90deg, rgba(42,58,95,.55) 0 1px, transparent 1px 88px);
  mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
  pointer-events: none;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -6%;
  top: 12%;
  width: 46%;
  height: 62%;
  background: linear-gradient(135deg, rgba(192,138,46,.14), rgba(23,36,66,0) 62%);
  clip-path: polygon(18% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}
.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
  display: grid;
  gap: clamp(32px, 4vw, 56px);
  grid-template-columns: 1fr;
}
.page-faq .faq-hero__lead h1 {
  font-family: var(--wb-font-display);
  font-weight: 900;
  letter-spacing: -.01em;
  line-height: 1.08;
  font-size: clamp(32px, 6.2vw, 62px);
  margin: 12px 0 20px;
  color: var(--wb-text);
  max-width: 16em;
}
.page-faq .faq-hero__lead .wb-lede {
  font-size: clamp(15px, 1.6vw, 17.5px);
  line-height: 1.85;
  color: var(--wb-muted);
  max-width: 34em;
  margin: 0 0 28px;
}
.page-faq .faq-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero__facts {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid var(--wb-line);
  background: linear-gradient(160deg, var(--wb-panel), rgba(15,26,50,.6));
}
.page-faq .faq-fact {
  padding: 20px 18px 22px;
  border-right: 1px solid var(--wb-line);
  border-bottom: 1px solid var(--wb-line);
  position: relative;
}
.page-faq .faq-fact:nth-child(2n) {
  border-right: 0;
}
.page-faq .faq-fact:nth-last-child(-n+2) {
  border-bottom: 0;
}
.page-faq .faq-fact::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 26px;
  height: 2px;
  background: var(--wb-gold);
}
.page-faq .faq-fact__k {
  font-family: var(--wb-font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--wb-muted);
  margin: 0 0 10px;
}
.page-faq .faq-fact__v {
  margin: 0;
  font-family: var(--wb-font-display);
  font-weight: 700;
  color: var(--wb-gold-bright);
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1;
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.page-faq .faq-fact__v--sm {
  font-size: clamp(21px, 3vw, 30px);
  color: var(--wb-gold);
}
.page-faq .faq-fact__n {
  font-variant-numeric: tabular-nums;
}
.page-faq .faq-fact__u {
  font-size: 14px;
  font-family: var(--wb-font-body);
  font-weight: 400;
  color: var(--wb-muted);
}

/* ---------- 区块标题 ---------- */
.page-faq .faq-sechead {
  max-width: 44em;
  margin: 0 0 clamp(28px, 4vw, 48px);
}
.page-faq .faq-sechead h2 {
  font-family: var(--wb-font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.8vw, 42px);
  line-height: 1.14;
  letter-spacing: -.01em;
  margin: 10px 0 14px;
  color: var(--wb-text);
}
.page-faq .faq-sechead__note {
  color: var(--wb-muted);
  font-size: 15.5px;
  line-height: 1.85;
  margin: 0;
}

/* ---------- 六大分类 ---------- */
.page-faq .faq-cats {
  padding: clamp(48px, 7vw, 96px) 0 clamp(44px, 6vw, 84px);
  border-top: 1px solid var(--wb-line);
}
.page-faq .faq-cats__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  background: var(--wb-line);
  border: 1px solid var(--wb-line);
}
.page-faq .faq-cat {
  position: relative;
  background: var(--wb-base);
  padding: 26px 22px 24px;
  transition: background .3s var(--faq-ease);
}
.page-faq .faq-cat:hover {
  background: var(--wb-panel);
}
.page-faq .faq-cat__no {
  display: block;
  font-family: var(--wb-font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--wb-gold);
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--wb-line);
}
.page-faq .faq-cat__name {
  font-family: var(--wb-font-display);
  font-weight: 700;
  font-size: 21px;
  letter-spacing: .01em;
  margin: 0 0 10px;
  color: var(--wb-text);
}
.page-faq .faq-cat__desc {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--wb-muted);
  margin: 0 0 18px;
}
.page-faq .faq-cat__count {
  margin: 0;
  font-family: var(--wb-font-mono);
  font-size: 12px;
  color: var(--wb-muted);
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.page-faq .faq-cat__num {
  font-family: var(--wb-font-display);
  font-weight: 700;
  font-size: 26px;
  line-height: 1;
  color: var(--wb-gold-bright);
  font-variant-numeric: tabular-nums;
}

/* ---------- 图形容器 ---------- */
.page-faq .faq-figure {
  margin: clamp(32px, 5vw, 56px) 0 0;
}
.page-faq .faq-figure__frame {
  position: relative;
  border: 1px solid var(--wb-line);
  background:
    repeating-linear-gradient(45deg, rgba(42,58,95,.5) 0 1px, transparent 1px 14px),
    var(--wb-panel);
  clip-path: polygon(22px 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%, 0 22px);
  overflow: hidden;
}
.page-faq .faq-figure__frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-figure__cap {
  margin: 14px 0 0;
  font-family: var(--wb-font-mono);
  font-size: 12px;
  line-height: 1.75;
  color: var(--wb-muted);
  max-width: 68em;
}

/* ---------- 高频问题 ---------- */
.page-faq .faq-list {
  padding: clamp(48px, 7vw, 96px) 0 clamp(48px, 7vw, 100px);
  border-top: 1px solid var(--wb-line);
  background: linear-gradient(180deg, rgba(23,36,66,.35), transparent 30%);
}
.page-faq .faq-filterbar {
  position: sticky;
  top: 0;
  z-index: 6;
  margin: 0 0 22px;
  padding: 12px 0;
  background: rgba(15, 26, 50, .92);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--wb-line);
  border-bottom: 1px solid var(--wb-line);
}
.page-faq .faq-filterbar__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-faq .faq-filterbar .wb-chip {
  font-family: var(--wb-font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
}

.page-faq .faq-items {
  display: grid;
  gap: 10px;
}
.page-faq .faq-q {
  border: 1px solid var(--wb-line);
  border-left: 3px solid var(--wb-line);
  background: var(--wb-base);
  transition: border-color .28s var(--faq-ease), background .28s var(--faq-ease);
}
.page-faq .faq-q:hover {
  border-left-color: var(--wb-gold);
  background: var(--wb-panel);
}
.page-faq .faq-q[open] {
  border-left-color: var(--wb-gold);
  background: linear-gradient(120deg, rgba(192,138,46,.09), var(--wb-panel) 46%);
}
.page-faq .faq-q.is-filtered {
  display: none;
}
.page-faq .faq-q__head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 12px;
  padding: 18px 18px 18px 16px;
  cursor: pointer;
  list-style: none;
}
.page-faq .faq-q__head::-webkit-details-marker {
  display: none;
}
.page-faq .faq-q__no {
  font-family: var(--wb-font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--wb-gold);
  white-space: nowrap;
}
.page-faq .faq-q__title {
  font-family: var(--wb-font-display);
  font-weight: 700;
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.45;
  color: var(--wb-text);
}
.page-faq .faq-q__arrow {
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--wb-gold);
  border-bottom: 2px solid var(--wb-gold);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform .26s var(--faq-ease);
  align-self: center;
  flex: none;
}
.page-faq .faq-q[open] .faq-q__arrow {
  transform: rotate(-135deg) translate(-2px, -2px);
}
.page-faq .faq-q__body {
  padding: 0 20px 26px 16px;
  animation: faq-fade .3s var(--faq-ease);
}
@keyframes faq-fade {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}
.page-faq .faq-q__verdict {
  margin: 0 0 20px;
  padding-left: 15px;
  border-left: 2px solid var(--wb-gold);
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--wb-text);
}
.page-faq .faq-q__vk {
  font-family: var(--wb-font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--wb-gold-bright);
  margin-right: 10px;
  padding: 2px 7px;
  border: 1px solid rgba(232,200,122,.4);
  white-space: nowrap;
}
.page-faq .faq-q__label {
  font-family: var(--wb-font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--wb-muted);
  margin: 0 0 14px;
}
.page-faq .faq-q__steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-faq .faq-q__steps li {
  counter-increment: faqstep;
  position: relative;
  padding-left: 40px;
  margin-bottom: 14px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--wb-muted);
}
.page-faq .faq-q__steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  font-family: var(--wb-font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--wb-gold);
}
.page-faq .faq-q__steps li::after {
  content: "";
  position: absolute;
  left: 25px;
  top: 9px;
  bottom: -14px;
  border-left: 1px dashed rgba(42,58,95,.9);
}
.page-faq .faq-q__steps li:last-child::after {
  display: none;
}
.page-faq .faq-q__note {
  margin: 6px 0 0;
  padding: 12px 14px;
  border-left: 2px solid var(--wb-line);
  background: rgba(15,26,50,.55);
  font-family: var(--wb-font-mono);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--wb-muted);
}

/* ---------- V3 区块 ---------- */
.page-faq .faq-v3 {
  padding: clamp(48px, 7vw, 104px) 0;
  border-top: 1px solid var(--wb-line);
  background:
    radial-gradient(120% 90% at 90% 6%, rgba(192,138,46,.10), transparent 58%),
    var(--wb-base);
}
.page-faq .faq-v3__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 60px);
}
.page-faq .faq-v3__text h2 {
  font-family: var(--wb-font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.8vw, 42px);
  line-height: 1.14;
  letter-spacing: -.01em;
  margin: 10px 0 16px;
  color: var(--wb-text);
}
.page-faq .faq-v3__lede {
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--wb-muted);
  margin: 0 0 30px;
}
.page-faq .faq-v3__track {
  list-style: none;
  margin: 0 0 28px;
  padding: 0 0 0 22px;
  border-left: 1px dashed var(--wb-line);
}
.page-faq .faq-v3__node {
  position: relative;
  padding: 0 0 26px 22px;
}
.page-faq .faq-v3__node::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--wb-base);
  border: 2px solid var(--wb-gold);
  transform: rotate(45deg);
}
.page-faq .faq-v3__node--alert::before {
  border-color: var(--wb-cinnabar);
}
.page-faq .faq-v3__stage {
  display: block;
  font-family: var(--wb-font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--wb-gold-bright);
  margin-bottom: 8px;
}
.page-faq .faq-v3__node--alert .faq-v3__stage {
  color: var(--wb-cinnabar);
  font-size: 14px;
}
.page-faq .faq-v3__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--wb-muted);
}
.page-faq .faq-v3__tail {
  font-size: 15px;
  line-height: 1.9;
  color: var(--wb-muted);
  margin: 0;
  padding-top: 20px;
  border-top: 1px solid var(--wb-line);
}
.page-faq .faq-link {
  color: var(--wb-gold-bright);
  text-decoration: none;
  border-bottom: 1px solid rgba(232,200,122,.45);
  transition: border-color .2s var(--faq-ease), color .2s var(--faq-ease);
}
.page-faq .faq-link:hover {
  color: var(--wb-gold);
  border-bottom-color: var(--wb-gold);
}
.page-faq .faq-figure--tall {
  margin: 0;
}

/* ---------- 安装与更新（纸白面板） ---------- */
.page-faq .faq-install {
  padding: clamp(48px, 7vw, 100px) 0;
  background: var(--wb-paper);
  color: var(--faq-on-paper);
}
.page-faq .faq-install .faq-sechead--dark h2 {
  color: var(--faq-on-paper);
}
.page-faq .faq-install .wb-eyebrow {
  color: #8A6A22;
}
.page-faq .faq-sechead--dark .faq-sechead__note {
  color: #4A5568;
}
.page-faq .faq-plat {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border: 1px solid var(--faq-paper-line);
  background: var(--faq-paper-line);
}
.page-faq .faq-plat__card {
  background: var(--wb-paper);
  padding: 26px 22px 28px;
  border-bottom: 1px solid var(--faq-paper-line);
}
.page-faq .faq-plat__card:last-child {
  border-bottom: 0;
}
.page-faq .faq-plat__name {
  font-family: var(--wb-font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin: 0 0 16px;
  color: #5A6478;
}
.page-faq .faq-plat__size {
  margin: 0 0 14px;
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--wb-font-display);
  font-weight: 900;
  color: var(--faq-on-paper);
}
.page-faq .faq-plat__num {
  font-size: clamp(44px, 6vw, 64px);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.page-faq .faq-plat__u {
  font-size: 16px;
  font-weight: 700;
  color: #8A6A22;
}
.page-faq .faq-plat__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: #4A5568;
}
.page-faq .faq-install__notes {
  margin-top: clamp(28px, 4vw, 44px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  background: var(--faq-paper-line);
  border: 1px solid var(--faq-paper-line);
}
.page-faq .faq-note {
  background: var(--wb-paper);
  padding: 22px 20px 24px;
}
.page-faq .faq-note__t {
  font-family: var(--wb-font-display);
  font-weight: 700;
  font-size: 17px;
  margin: 0 0 10px;
  color: var(--faq-on-paper);
  padding-bottom: 10px;
  border-bottom: 2px solid #C08A2E;
  display: inline-block;
}
.page-faq .faq-note__d {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.88;
  color: #4A5568;
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-contact {
  padding: clamp(48px, 7vw, 104px) 0 clamp(56px, 8vw, 120px);
  border-top: 1px solid var(--wb-line);
}
.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
}
.page-faq .faq-channels {
  display: grid;
  gap: 2px;
  background: var(--wb-line);
  border: 1px solid var(--wb-line);
  align-self: start;
}
.page-faq .faq-channel {
  background: var(--wb-base);
  padding: 22px 20px;
}
.page-faq .faq-channel__k {
  font-family: var(--wb-font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--wb-muted);
  margin: 0 0 10px;
}
.page-faq .faq-channel__v {
  margin: 0;
  font-family: var(--wb-font-mono);
  font-size: clamp(14px, 2vw, 16.5px);
  font-weight: 700;
  color: var(--wb-gold-bright);
  word-break: break-all;
  line-height: 1.5;
}
.page-faq .wb-copy.faq-channel__v {
  cursor: pointer;
  display: inline-block;
  padding-bottom: 3px;
  border-bottom: 1px dashed rgba(232,200,122,.5);
  transition: color .2s var(--faq-ease), border-color .2s var(--faq-ease);
}
.page-faq .wb-copy.faq-channel__v:hover {
  color: var(--wb-gold);
  border-bottom-color: var(--wb-gold);
}
.page-faq .faq-channel__hint {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--wb-muted);
}
.page-faq .faq-channel--plain .faq-channel__v {
  color: var(--wb-text);
  font-family: var(--wb-font-body);
}
.page-faq .faq-prep {
  border-top: 2px solid var(--wb-gold);
  padding-top: 24px;
}
.page-faq .faq-prep__t {
  font-family: var(--wb-font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.6vw, 26px);
  margin: 0 0 20px;
  color: var(--wb-text);
}
.page-faq .faq-prep__list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
}
.page-faq .faq-prep__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--wb-line);
}
.page-faq .faq-prep__n {
  font-family: var(--wb-font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--wb-gold);
  padding-top: 3px;
}
.page-faq .faq-prep__x {
  font-size: 15px;
  line-height: 1.88;
  color: var(--wb-muted);
}
.page-faq .faq-prep__tail {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--wb-muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-cats__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .faq-plat {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .faq-plat__card {
    border-bottom: 0;
    border-right: 1px solid var(--faq-paper-line);
  }
  .page-faq .faq-plat__card:last-child {
    border-right: 0;
  }
  .page-faq .faq-install__notes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: 1.15fr .85fr;
    align-items: center;
  }
  .page-faq .faq-cats__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .faq-cat:nth-child(2),
  .page-faq .faq-cat:nth-child(5) {
    transform: translateY(-14px);
  }
  .page-faq .faq-v3__grid {
    grid-template-columns: 1.25fr .75fr;
    align-items: start;
  }
  .page-faq .faq-contact__grid {
    grid-template-columns: .85fr 1.15fr;
    gap: clamp(36px, 5vw, 72px);
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-filterbar {
    top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q__body {
    animation: none;
  }
  .page-faq .faq-q__arrow,
  .page-faq .faq-cat,
  .page-faq .faq-q,
  .page-faq .wb-copy.faq-channel__v {
    transition: none;
  }
}