.page-faq {
  --faq-line: rgba(46, 230, 214, 0.20);
  --faq-line-soft: rgba(143, 233, 255, 0.10);
  --faq-card: #101B29;
  --faq-card-deep: #0B1420;
  --faq-ok: #2EE6D6;
  position: relative;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-faq * {
  box-sizing: border-box;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  margin: 0;
  line-height: 1.22;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-faq p {
  margin: 0;
}

.page-faq ul,
.page-faq ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq a {
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid rgba(143, 233, 255, 0.35);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq a:hover {
  color: var(--amber);
  border-bottom-color: rgba(255, 176, 32, 0.6);
}

.page-faq a:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-bottom-color: transparent;
}

.page-faq .section {
  padding: clamp(48px, 7vw, 84px) 0;
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .section:first-of-type {
  border-top: 0;
}

.page-faq .section__head {
  margin-bottom: clamp(26px, 4vw, 40px);
  max-width: 780px;
}

.page-faq .section__title {
  font-size: clamp(23px, 3.4vw, 34px);
  color: var(--text);
  margin-top: 10px;
}

.page-faq .section__lead {
  margin-top: 14px;
  color: var(--body-soft);
  font-size: 16px;
  line-height: 1.75;
  max-width: 66ch;
}

.page-faq .kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 24px 0 clamp(44px, 6vw, 72px);
  background:
    radial-gradient(820px 400px at 84% -8%, rgba(140, 92, 255, 0.20), transparent 68%),
    radial-gradient(680px 380px at 6% 4%, rgba(46, 230, 214, 0.14), transparent 70%),
    linear-gradient(180deg, #070C14 0%, var(--ink) 72%);
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(46, 230, 214, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46, 230, 214, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 78%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 78%);
}

.page-faq .faq-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .crumbs {
  margin-bottom: 18px;
}

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

.page-faq .crumbs__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(139, 156, 176, 0.5);
}

.page-faq .crumbs__link {
  border-bottom: 0;
  color: var(--muted);
}

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

.page-faq .crumbs__current {
  color: var(--ice);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: start;
}

.page-faq .faq-hero__text h1 {
  font-size: clamp(28px, 6.6vw, 52px);
  letter-spacing: -0.01em;
  margin-top: 12px;
  color: var(--text);
}

.page-faq .faq-hero__lead {
  margin-top: 18px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--body-soft);
  max-width: 62ch;
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 26px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-hero__stats .stat {
  background: rgba(13, 20, 32, 0.85);
  padding: 14px 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq .faq-hero__stats .stat__num {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}

.page-faq .faq-hero__stats .stat__label {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__figure {
  position: relative;
  border: 1px solid var(--faq-line);
  background: var(--faq-card-deep);
  padding: 10px;
}

.page-faq .faq-hero__figure::before {
  content: "DIAG / 01";
  position: absolute;
  top: -11px;
  left: 14px;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--ink);
  background: var(--amber);
}

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

.page-faq .figure {
  margin: 0;
}

.page-faq .figure__cap {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 决策分流 ---------- */
.page-faq .faq-branch__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-faq .faq-branch__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .triage {
  position: relative;
  padding: 20px 20px 20px 22px;
  background: linear-gradient(160deg, var(--faq-card), var(--faq-card-deep));
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--cyan);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .triage:hover {
  transform: translateY(-3px);
  border-color: rgba(46, 230, 214, 0.42);
}

.page-faq .triage--alert {
  border-left-color: var(--alert);
}

.page-faq .triage__no {
  position: absolute;
  top: 14px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: rgba(143, 233, 255, 0.16);
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .triage:hover .triage__no {
  color: rgba(143, 233, 255, 0.3);
  transform: translateX(-2px);
}

.page-faq .triage__signal {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  border: 1px solid var(--faq-line);
  padding: 3px 8px;
  margin-bottom: 12px;
}

.page-faq .triage--alert .triage__signal {
  color: var(--alert);
  border-color: rgba(255, 95, 109, 0.4);
}

.page-faq .triage__title {
  font-size: 17px;
  color: var(--text);
  padding-right: 44px;
}

.page-faq .triage__text {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--body-soft);
}

.page-faq .triage__more {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--amber);
  border-bottom: 1px dashed rgba(255, 176, 32, 0.5);
}

.page-faq .faq-branch__diagram {
  border: 1px solid var(--faq-line);
  background: rgba(11, 20, 32, 0.9);
  padding: 18px 16px 20px;
}

.page-faq .diagram__cap {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.page-faq .triage-svg {
  display: block;
  width: 100%;
  max-width: 340px;
  height: auto;
  margin: 0 auto;
}

.page-faq .ts-lines path {
  fill: none;
  stroke: rgba(46, 230, 214, 0.34);
  stroke-width: 1.4;
}

.page-faq .ts-node {
  fill: var(--faq-card-deep);
  stroke: var(--cyan);
  stroke-width: 1.6;
}

.page-faq .ts-node--root {
  stroke: var(--amber);
}

.page-faq .ts-node--end {
  stroke: var(--violet);
}

.page-faq .ts-label {
  fill: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
}

.page-faq .ts-label--root {
  fill: var(--amber);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
}

.page-faq .ts-sub {
  fill: var(--muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
}

.page-faq .ts-sub--end {
  fill: var(--ice);
}

.page-faq .diagram__note {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px dashed var(--faq-line);
  padding-top: 12px;
}

/* ---------- 登录流程 ---------- */
.page-faq .flow {
  position: relative;
  display: grid;
  gap: 0;
  margin-left: 19px;
}

.page-faq .flow__step {
  position: relative;
  padding: 0 0 30px 44px;
  border-left: 1px solid var(--faq-line);
}

.page-faq .flow__step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-faq .flow__no {
  position: absolute;
  left: -19px;
  top: -2px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  background: var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% 72%, 72% 100%, 0 100%);
  transition: background 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .flow__step:hover .flow__no {
  background: var(--amber);
  transform: translateY(-2px);
}

.page-faq .flow__title {
  font-size: 17px;
  color: var(--text);
}

.page-faq .flow__text {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--body-soft);
  max-width: 68ch;
}

.page-faq .flow__check {
  margin-top: 12px;
  display: flex;
  gap: 9px;
  align-items: flex-start;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ice);
  background: rgba(46, 230, 214, 0.06);
  border-left: 2px solid var(--cyan);
  padding: 9px 12px;
}

.page-faq .dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-top: 7px;
  border-radius: 50%;
}

.page-faq .dot--ok {
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(46, 230, 214, 0.18);
}

.page-faq .flow__foot {
  margin-top: 30px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px solid var(--faq-line-soft);
  padding-top: 16px;
}

/* ---------- 打开失败清单 ---------- */
.page-faq .faq-faults__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

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

.page-faq .fault {
  background: var(--faq-card);
  border: 1px solid var(--faq-line);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .fault[open] {
  border-color: rgba(46, 230, 214, 0.42);
  background: linear-gradient(180deg, rgba(46, 230, 214, 0.06), var(--faq-card) 40%);
}

.page-faq .fault__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .fault__no {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--amber);
  border: 1px solid rgba(255, 176, 32, 0.45);
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
}

.page-faq .fault__name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  flex: 1 1 auto;
  min-width: 60%;
  line-height: 1.5;
}

.page-faq .fault__state {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--alert);
  border: 1px solid rgba(255, 95, 109, 0.38);
  padding: 2px 7px;
  flex: 0 0 auto;
}

.page-faq .fault__icon {
  position: relative;
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  margin-left: auto;
}

.page-faq .fault__icon::before,
.page-faq .fault__icon::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.18s var(--ease);
}

.page-faq .fault__icon::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .fault__icon::after {
  top: 0;
  left: 6px;
  width: 2px;
  height: 14px;
}

.page-faq .fault[open] .fault__icon::after {
  transform: scaleY(0);
}

.page-faq .fault__body {
  padding: 0 16px 18px;
}

.page-faq .fault__steps {
  counter-reset: faultstep;
  display: grid;
  gap: 9px;
  border-top: 1px dashed var(--faq-line);
  padding-top: 14px;
}

.page-faq .fault__steps li {
  counter-increment: faultstep;
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--body-soft);
}

.page-faq .fault__steps li::before {
  content: counter(faultstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}

.page-faq .fault__result {
  margin-top: 14px;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--ice);
  background: rgba(140, 92, 255, 0.10);
  border-left: 2px solid var(--violet);
  padding: 10px 12px;
}

.page-faq .fault__ref {
  margin-top: 12px;
  font-size: 12.5px;
  color: var(--muted);
}

.page-faq .faq-faults__aside {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-faq .fault-figure {
  margin: 0;
  border: 1px solid var(--faq-line);
  background: var(--faq-card-deep);
  padding: 8px;
}

.page-faq .notice {
  border: 1px solid rgba(255, 176, 32, 0.35);
  background: rgba(255, 176, 32, 0.07);
  padding: 14px 16px;
}

.page-faq .notice__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber);
  margin-bottom: 8px;
}

.page-faq .notice p:last-child {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--body-soft);
}

/* ---------- 问答 ---------- */
.page-faq .qa {
  display: grid;
  gap: 8px;
}

.page-faq .qa__item {
  border: 1px solid var(--faq-line);
  background: var(--faq-card-deep);
  transition: border-color 0.2s var(--ease);
}

.page-faq .qa__item[open] {
  border-color: rgba(143, 233, 255, 0.36);
  background: linear-gradient(180deg, rgba(140, 92, 255, 0.09), var(--faq-card-deep) 55%);
}

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

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

.page-faq .qa__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--violet);
  flex: 0 0 auto;
}

.page-faq .qa__txt {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--text);
}

.page-faq .qa__a {
  padding: 0 16px 18px 44px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--body-soft);
}

.page-faq .qa__a p + p {
  margin-top: 10px;
}

/* ---------- 求助准备 ---------- */
.page-faq .faq-prep__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

.page-faq .prep-list {
  display: grid;
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
}

.page-faq .prep-list__item {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 4px 10px;
  background: var(--faq-card);
  padding: 13px 14px;
  transition: background 0.18s var(--ease);
}

.page-faq .prep-list__item:hover {
  background: #14212F;
}

.page-faq .prep-list__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  grid-row: span 2;
  align-self: start;
  padding-top: 2px;
}

.page-faq .prep-list__k {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.page-faq .prep-list__v {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-faq .faq-contact__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid rgba(255, 176, 32, 0.28);
  background:
    radial-gradient(520px 240px at 90% 0%, rgba(140, 92, 255, 0.16), transparent 70%),
    linear-gradient(150deg, #111C2A, var(--faq-card-deep));
}

.page-faq .faq-contact__lead {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--body-soft);
  max-width: 60ch;
}

.page-faq .faq-contact__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.page-faq .faq-contact__tags li {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ice);
  border: 1px solid var(--faq-line);
  padding: 4px 9px;
}

.page-faq .faq-contact__main .btn {
  margin-top: 22px;
}

.page-faq .faq-contact__list {
  display: grid;
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
  align-self: start;
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 4px;
  background: rgba(6, 8, 15, 0.6);
  padding: 12px 14px;
}

.page-faq .faq-contact__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-faq .faq-contact__v {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  word-break: break-word;
}

.page-faq .faq-contact__foot {
  margin-top: 18px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-faq .triage:nth-child(2) {
    transform: translateY(14px);
  }

  .page-faq .triage:nth-child(2):hover {
    transform: translateY(11px);
  }

  .page-faq .prep-list__item {
    grid-template-columns: 40px 170px 1fr;
    align-items: baseline;
  }

  .page-faq .prep-list__no {
    grid-row: auto;
  }

  .page-faq .faq-contact__row {
    grid-template-columns: 110px 1fr;
    align-items: baseline;
    gap: 12px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 44px;
  }

  .page-faq .faq-hero__figure {
    margin-top: 22px;
  }

  .page-faq .faq-branch__body {
    grid-template-columns: 8fr 4fr;
    gap: 34px;
  }

  .page-faq .faq-branch__diagram {
    position: sticky;
    top: 132px;
  }

  .page-faq .faq-faults__body {
    grid-template-columns: 7fr 5fr;
    gap: 32px;
  }

  .page-faq .faq-faults__aside {
    position: sticky;
    top: 132px;
  }

  .page-faq .faq-prep__inner {
    grid-template-columns: 4fr 8fr;
    gap: 40px;
  }

  .page-faq .faq-contact__panel {
    grid-template-columns: 7fr 5fr;
    gap: 40px;
  }
}

@media (max-width: 400px) {
  .page-faq .fault__state {
    order: 3;
  }

  .page-faq .fault__icon {
    margin-left: 0;
  }

  .page-faq .qa__a {
    padding-left: 16px;
  }

  .page-faq .flow {
    margin-left: 17px;
  }

  .page-faq .flow__step {
    padding-left: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .triage,
  .page-faq .triage__no,
  .page-faq .flow__no,
  .page-faq .fault__icon::before,
  .page-faq .fault__icon::after,
  .page-faq a {
    transition: none;
  }

  .page-faq .triage:hover,
  .page-faq .triage:nth-child(2),
  .page-faq .triage:nth-child(2):hover {
    transform: none;
  }
}



.page-faq {
  --faq-line: rgba(46, 230, 214, 0.20);
  --faq-line-soft: rgba(143, 233, 255, 0.10);
  --faq-card: #101B29;
  --faq-card-deep: #0B1420;
  position: relative;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-faq * { box-sizing: border-box; }

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  margin: 0;
  line-height: 1.24;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-faq p { margin: 0; }

.page-faq ul,
.page-faq ol { margin: 0; padding: 0; list-style: none; }

.page-faq a {
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid rgba(143, 233, 255, 0.32);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq a:hover { color: var(--amber); border-bottom-color: rgba(255, 176, 32, 0.6); }

.page-faq a:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-bottom-color: transparent;
}

.page-faq .section {
  padding: clamp(48px, 7vw, 84px) 0;
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .section__head {
  margin-bottom: clamp(26px, 4vw, 40px);
  max-width: 780px;
}

.page-faq .section__title {
  font-size: clamp(23px, 3.4vw, 33px);
  color: var(--text);
  margin-top: 10px;
}

.page-faq .section__lead {
  margin-top: 14px;
  color: var(--body-soft);
  font-size: 16px;
  line-height: 1.75;
  max-width: 66ch;
}

.page-faq .kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  padding: 22px 0 clamp(44px, 6vw, 70px);
  background:
    radial-gradient(820px 400px at 84% -8%, rgba(140, 92, 255, 0.20), transparent 68%),
    radial-gradient(680px 380px at 6% 4%, rgba(46, 230, 214, 0.14), transparent 70%),
    linear-gradient(180deg, #070C14 0%, var(--ink) 72%);
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(46, 230, 214, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46, 230, 214, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.75), transparent 78%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.75), transparent 78%);
}

.page-faq .faq-hero .wrap { position: relative; z-index: 1; }

.page-faq .crumbs { margin-bottom: 18px; }

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

.page-faq .crumbs__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(139, 156, 176, 0.5);
}

.page-faq .crumbs__link { border-bottom: 0; color: var(--muted); }
.page-faq .crumbs__link:hover { color: var(--cyan); }
.page-faq .crumbs__current { color: var(--ice); }

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: start;
}

.page-faq .faq-hero__text h1 {
  font-size: clamp(28px, 6.6vw, 50px);
  letter-spacing: -0.01em;
  margin-top: 12px;
  color: var(--text);
}

.page-faq .faq-hero__lead {
  margin-top: 18px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--body-soft);
  max-width: 62ch;
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 26px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-hero__stats .stat {
  background: rgba(13, 20, 32, 0.85);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq .faq-hero__stats .stat__num {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}

.page-faq .faq-hero__stats .stat__label {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__figure {
  position: relative;
  border: 1px solid var(--faq-line);
  background: var(--faq-card-deep);
  padding: 10px;
  margin: 0;
}

.page-faq .faq-hero__figure::before {
  content: "DIAG / 01";
  position: absolute;
  top: -11px;
  left: 14px;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--ink);
  background: var(--amber);
}

.page-faq .figure { margin: 0; }

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

.page-faq .figure__cap {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

/* 决策分流 */
.page-faq .faq-branch__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-faq .faq-branch__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .triage {
  position: relative;
  padding: 20px 20px 20px 22px;
  background: linear-gradient(160deg, var(--faq-card), var(--faq-card-deep));
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--cyan);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .triage:hover {
  transform: translateY(-3px);
  border-color: rgba(46, 230, 214, 0.44);
}

.page-faq .triage--alert { border-left-color: var(--alert); }

.page-faq .triage__no {
  position: absolute;
  top: 12px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: rgba(143, 233, 255, 0.16);
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .triage:hover .triage__no {
  color: rgba(143, 233, 255, 0.32);
  transform: translateX(-2px);
}

.page-faq .triage__signal {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  border: 1px solid var(--faq-line);
  padding: 3px 8px;
  margin-bottom: 12px;
}

.page-faq .triage--alert .triage__signal {
  color: var(--alert);
  border-color: rgba(255, 95, 109, 0.4);
}

.page-faq .triage__title {
  font-size: 17px;
  color: var(--text);
  padding-right: 42px;
}

.page-faq .triage__text {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--body-soft);
}

.page-faq .triage__more {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--amber);
  border-bottom: 1px dashed rgba(255, 176, 32, 0.5);
}

.page-faq .faq-branch__diagram {
  border: 1px solid var(--faq-line);
  background: rgba(11, 20, 32, 0.9);
  padding: 18px 16px 20px;
}

.page-faq .diagram__cap {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.page-faq .triage-svg {
  display: block;
  width: 100%;
  max-width: 340px;
  height: auto;
  margin: 0 auto;
}

.page-faq .ts-lines path {
  fill: none;
  stroke: rgba(46, 230, 214, 0.34);
  stroke-width: 1.4;
}

.page-faq .ts-node {
  fill: var(--faq-card-deep);
  stroke: var(--cyan);
  stroke-width: 1.6;
}

.page-faq .ts-node--root { stroke: var(--amber); }
.page-faq .ts-node--end { stroke: var(--violet); }

.page-faq .ts-label {
  fill: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
}

.page-faq .ts-label--root {
  fill: var(--amber);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  text-anchor: middle;
}

.page-faq .ts-sub {
  fill: var(--muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
}

.page-faq .ts-sub--end { fill: var(--ice); }

.page-faq .diagram__note {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px dashed var(--faq-line);
  padding-top: 12px;
}

/* 登录流程 */
.page-faq .flow {
  position: relative;
  display: grid;
  gap: 0;
  margin-left: 19px;
}

.page-faq .flow__step {
  position: relative;
  padding: 0 0 30px 44px;
  border-left: 1px solid var(--faq-line);
}

.page-faq .flow__step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-faq .flow__no {
  position: absolute;
  left: -19px;
  top: -2px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  background: var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% 72%, 72% 100%, 0 100%);
  transition: background 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .flow__step:hover .flow__no {
  background: var(--amber);
  transform: translateY(-2px);
}

.page-faq .flow__title { font-size: 17px; color: var(--text); }

.page-faq .flow__text {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--body-soft);
  max-width: 68ch;
}

.page-faq .flow__check {
  margin-top: 12px;
  display: flex;
  gap: 9px;
  align-items: flex-start;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ice);
  background: rgba(46, 230, 214, 0.06);
  border-left: 2px solid var(--cyan);
  padding: 9px 12px;
}

.page-faq .dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-top: 7px;
  border-radius: 50%;
}

.page-faq .dot--ok {
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(46, 230, 214, 0.18);
}

.page-faq .flow__foot {
  margin-top: 30px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px solid var(--faq-line-soft);
  padding-top: 16px;
}

/* 打开失败清单 */
.page-faq .faq-faults__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

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

.page-faq .fault {
  background: var(--faq-card);
  border: 1px solid var(--faq-line);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .fault[open] {
  border-color: rgba(46, 230, 214, 0.42);
  background: linear-gradient(180deg, rgba(46, 230, 214, 0.06), var(--faq-card) 42%);
}

.page-faq .fault__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .fault__no {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--amber);
  border: 1px solid rgba(255, 176, 32, 0.45);
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
}

.page-faq .fault__name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  flex: 1 1 auto;
  min-width: 55%;
  line-height: 1.5;
}

.page-faq .fault__state {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--alert);
  border: 1px solid rgba(255, 95, 109, 0.38);
  padding: 2px 7px;
  flex: 0 0 auto;
}

.page-faq .fault__icon {
  position: relative;
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  margin-left: auto;
}

.page-faq .fault__icon::before,
.page-faq .fault__icon::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.18s var(--ease);
}

.page-faq .fault__icon::before { left: 0; top: 6px; width: 14px; height: 2px; }
.page-faq .fault__icon::after { top: 0; left: 6px; width: 2px; height: 14px; }
.page-faq .fault[open] .fault__icon::after { transform: scaleY(0); }

.page-faq .fault__body { padding: 0 16px 18px; }

.page-faq .fault__steps {
  counter-reset: faultstep;
  display: grid;
  gap: 9px;
  border-top: 1px dashed var(--faq-line);
  padding-top: 14px;
}

.page-faq .fault__steps li {
  counter-increment: faultstep;
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--body-soft);
}

.page-faq .fault__steps li::before {
  content: counter(faultstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}

.page-faq .fault__result {
  margin-top: 14px;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--ice);
  background: rgba(140, 92, 255, 0.10);
  border-left: 2px solid var(--violet);
  padding: 10px 12px;
}

.page-faq .fault__ref {
  margin-top: 12px;
  font-size: 12.5px;
  color: var(--muted);
}

.page-faq .faq-faults__aside {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-faq .fault-figure {
  margin: 0;
  border: 1px solid var(--faq-line);
  background: var(--faq-card-deep);
  padding: 8px;
}

.page-faq .notice {
  border: 1px solid rgba(255, 176, 32, 0.35);
  background: rgba(255, 176, 32, 0.07);
  padding: 14px 16px;
}

.page-faq .notice__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber);
  margin-bottom: 8px;
}

.page-faq .notice p:last-child {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--body-soft);
}

/* 问答 */
.page-faq .qa { display: grid; gap: 8px; }

.page-faq .qa__item {
  border: 1px solid var(--faq-line);
  background: var(--faq-card-deep);
  transition: border-color 0.2s var(--ease);
}

.page-faq .qa__item[open] {
  border-color: rgba(143, 233, 255, 0.36);
  background: linear-gradient(180deg, rgba(140, 92, 255, 0.09), var(--faq-card-deep) 55%);
}

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

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

.page-faq .qa__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--violet);
  flex: 0 0 auto;
}

.page-faq .qa__txt {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--text);
}

.page-faq .qa__a {
  padding: 0 16px 18px 44px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--body-soft);
}

.page-faq .qa__a p + p { margin-top: 10px; }

/* 求助准备 */
.page-faq .faq-prep__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: start;
}

.page-faq .prep-list {
  display: grid;
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
}

.page-faq .prep-list__item {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 4px 10px;
  background: var(--faq-card);
  padding: 13px 14px;
  transition: background 0.18s var(--ease);
}

.page-faq .prep-list__item:hover { background: #14212F; }

.page-faq .prep-list__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  grid-row: span 2;
  align-self: start;
  padding-top: 2px;
}

.page-faq .prep-list__k { font-size: 14px; font-weight: 600; color: var(--text); }

.page-faq .prep-list__v { font-size: 13px; line-height: 1.6; color: var(--muted); }

/* 联系 */
.page-faq .faq-contact { padding-bottom: clamp(56px, 8vw, 96px); }

.page-faq .faq-contact__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid rgba(255, 176, 32, 0.28);
  background:
    radial-gradient(520px 240px at 90% 0%, rgba(140, 92, 255, 0.16), transparent 70%),
    linear-gradient(150deg, #111C2A, var(--faq-card-deep));
}

.page-faq .faq-contact__lead {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--body-soft);
  max-width: 60ch;
}

.page-faq .faq-contact__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.page-faq .faq-contact__tags li {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ice);
  border: 1px solid var(--faq-line);
  padding: 4px 9px;
}

.page-faq .faq-contact__main .btn { margin-top: 22px; }

.page-faq .faq-contact__list {
  display: grid;
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
  align-self: start;
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 4px;
  background: rgba(6, 8, 15, 0.6);
  padding: 12px 14px;
}

.page-faq .faq-contact__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-faq .faq-contact__v {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
  word-break: break-word;
}

.page-faq .faq-contact__foot {
  margin-top: 18px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* 响应式 */
@media (min-width: 640px) {
  .page-faq .faq-hero__stats { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-faq .faq-branch__cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .page-faq .triage:nth-child(2) { transform: translateY(14px); }
  .page-faq .triage:nth-child(2):hover { transform: translateY(11px); }

  .page-faq .prep-list__item {
    grid-template-columns: 40px 160px 1fr;
    align-items: baseline;
  }

  .page-faq .prep-list__no { grid-row: auto; }

  .page-faq .faq-contact__row {
    grid-template-columns: 110px 1fr;
    align-items: baseline;
    gap: 12px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid { grid-template-columns: 7fr 5fr; gap: 44px; }
  .page-faq .faq-hero__figure { margin-top: 22px; }

  .page-faq .faq-branch__body { grid-template-columns: 8fr 4fr; gap: 34px; }
  .page-faq .faq-branch__diagram { position: sticky; top: 136px; }

  .page-faq .faq-faults__body { grid-template-columns: 7fr 5fr; gap: 32px; }
  .page-faq .faq-faults__aside { position: sticky; top: 136px; }

  .page-faq .faq-prep__inner { grid-template-columns: 4fr 8fr; gap: 40px; }

  .page-faq .faq-contact__panel { grid-template-columns: 7fr 5fr; gap: 40px; }
}

@media (max-width: 400px) {
  .page-faq .fault__state { order: 3; }
  .page-faq .fault__icon { margin-left: 0; }
  .page-faq .qa__a { padding-left: 16px; }
  .page-faq .flow { margin-left: 17px; }
  .page-faq .flow__step { padding-left: 36px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .triage,
  .page-faq .triage__no,
  .page-faq .flow__no,
  .page-faq .fault__icon::before,
  .page-faq .fault__icon::after,
  .page-faq a { transition: none; }

  .page-faq .triage:hover,
  .page-faq .triage:nth-child(2),
  .page-faq .triage:nth-child(2):hover { transform: none; }
}