.page-faq {
  --faq-gap: clamp(16px, 2.4vw, 28px);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.75;
}

.page-faq h2 {
  font-family: var(--font-head);
  font-size: clamp(1.3rem, 4vw, 1.95rem);
  line-height: 1.3;
  letter-spacing: .06em;
  font-weight: 800;
  margin: 0 0 .55em;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding: clamp(24px, 4.2vw, 50px) 0 clamp(32px, 5.2vw, 62px);
  border-bottom: 3px solid var(--mint);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(90deg, rgba(138, 153, 168, .14) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(138, 153, 168, .1) 0 1px, transparent 1px 96px);
  opacity: .6;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -18%;
  right: -14%;
  width: 58%;
  height: 136%;
  background: linear-gradient(150deg, rgba(35, 230, 176, .18), rgba(35, 230, 176, 0) 62%);
  transform: skewX(-14deg);
  pointer-events: none;
}

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

.page-faq .faq-hero .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  color: rgba(244, 241, 232, .66);
  margin: 0 0 18px;
}

.page-faq .faq-hero .breadcrumbs a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(35, 230, 176, .4);
}

.page-faq .faq-hero .eyebrow {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--mint);
  margin: 0 0 10px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(1.75rem, 6vw, 3.2rem);
  line-height: 1.16;
  letter-spacing: .05em;
  font-weight: 800;
  max-width: 20ch;
  margin: 0 0 .55em;
}

.page-faq .faq-lead {
  max-width: 64ch;
  margin: 0;
  font-size: clamp(.95rem, 2.4vw, 1.06rem);
  line-height: 1.88;
  color: rgba(244, 241, 232, .82);
}

.page-faq .faq-quick {
  list-style: none;
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .faq-quick a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  height: 100%;
  padding: 13px 15px;
  border: 1px solid rgba(138, 153, 168, .42);
  border-left: 3px solid var(--mint);
  background: rgba(51, 71, 91, .42);
  color: var(--paper);
  text-decoration: none;
  transition: background .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-quick a:hover,
.page-faq .faq-quick a:focus-visible {
  background: rgba(35, 230, 176, .12);
  border-color: var(--mint);
  transform: translateX(3px);
}

.page-faq .faq-quick .mono {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--mint);
  padding-top: .2em;
}

.page-faq .faq-quick strong {
  display: block;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .06em;
  margin-bottom: 3px;
}

.page-faq .faq-quick em {
  display: block;
  font-style: normal;
  font-size: .82rem;
  line-height: 1.6;
  color: rgba(244, 241, 232, .68);
}

.page-faq .faq-status {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  font-size: .84rem;
  line-height: 1.7;
  color: rgba(244, 241, 232, .7);
}

.page-faq .faq-status .status-dot {
  flex: none;
  margin-top: .55em;
}

/* ---------- 排查工作台 ---------- */

.page-faq .faq-triage {
  padding: clamp(32px, 5.2vw, 70px) 0 clamp(30px, 4.4vw, 56px);
  background: linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
}

.page-faq .faq-triage-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
}

.page-faq .faq-idx {
  align-self: start;
}

.page-faq .faq-idx .eyebrow {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--teal);
  margin: 0 0 8px;
}

.page-faq .faq-idx-title {
  font-size: clamp(1.1rem, 3.4vw, 1.35rem);
  margin: 0 0 14px;
  letter-spacing: .05em;
}

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

.page-faq .faq-idx-list a {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  padding: 11px 8px 11px 0;
  border-top: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  transition: color .18s var(--ease), padding-left .18s var(--ease);
}

.page-faq .faq-idx-list li:last-child a {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-idx-list a:hover,
.page-faq .faq-idx-list a:focus-visible {
  color: var(--teal);
  padding-left: 6px;
}

.page-faq .faq-idx-list .mono {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--teal);
  padding-top: .2em;
}

.page-faq .faq-idx-list b {
  display: block;
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .05em;
}

.page-faq .faq-idx-list em {
  display: block;
  font-style: normal;
  font-size: .78rem;
  line-height: 1.6;
  color: var(--slate);
  margin-top: 2px;
}

.page-faq .faq-idx-note {
  margin: 14px 0 0;
  padding-left: 11px;
  border-left: 2px solid var(--mint);
  font-size: .8rem;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 排查卡 ---------- */

.page-faq .faq-card {
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-soft);
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

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

.page-faq .faq-card > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: clamp(12px, 1.8vw, 18px) clamp(14px, 2vw, 20px);
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  list-style: none;
  transition: background .2s var(--ease);
}

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

.page-faq .faq-card > summary:hover {
  background: var(--ink-3);
}

.page-faq .faq-card > summary:focus-visible {
  outline: 3px solid var(--mint);
  outline-offset: -3px;
}

.page-faq .faq-card > summary .mono {
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .1em;
  color: var(--mint);
}

.page-faq .faq-card h3 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1rem, 2.6vw, 1.14rem);
  font-weight: 700;
  letter-spacing: .06em;
  line-height: 1.5;
}

.page-faq .faq-caret {
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--mint);
  border-bottom: 2px solid var(--mint);
  transform: rotate(45deg);
  transition: transform .24s var(--ease);
}

.page-faq .faq-card[open] > summary .faq-caret {
  transform: rotate(225deg);
}

.page-faq .faq-card-body {
  padding: clamp(15px, 2.6vw, 26px);
  border-top: 2px solid var(--ink);
}

.page-faq .faq-card-body > p {
  margin: 0 0 .9em;
  font-size: .93rem;
  line-height: 1.82;
  color: #14303F;
}

.page-faq .faq-card-body > p:first-child {
  margin-top: 0;
}

.page-faq .faq-sub {
  margin: clamp(18px, 2.6vw, 24px) 0 0;
  font-family: var(--font-head);
  font-size: .96rem;
  letter-spacing: .06em;
  font-weight: 700;
  padding-left: 10px;
  border-left: 3px solid var(--orange);
}

.page-faq .hint {
  margin: 14px 0 0;
  padding: 11px 13px;
  border-left: 3px solid var(--amber);
  background: var(--paper-2);
  font-size: .85rem;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .fact-note {
  margin: 12px 0 0;
  padding: 11px 13px;
  border: 1px dashed var(--teal);
  background: var(--mist);
  font-size: .85rem;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 五项检查 ---------- */

.page-faq .check-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .check-item {
  border: 1px solid var(--line);
  border-left: 4px solid var(--teal);
  background: var(--paper-2);
  padding: 12px 14px;
}

.page-faq .check-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  margin-bottom: 7px;
}

.page-faq .check-head h4 {
  margin: 0;
  font-family: var(--font-head);
  font-size: .97rem;
  font-weight: 700;
  letter-spacing: .05em;
}

.page-faq .check-head .mono {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--slate);
}

.page-faq .check-head .tag {
  margin-left: auto;
}

.page-faq .check-item p {
  margin: 0 0 .45em;
  font-size: .88rem;
  line-height: 1.78;
  color: #17313F;
}

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

.page-faq .check-key {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--teal);
  border: 1px solid var(--teal);
  padding: 0 5px;
  margin-right: 8px;
  vertical-align: 1px;
}

/* ---------- 图片框 ---------- */

.page-faq .faq-figure {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  border: 2px solid var(--ink);
  background: var(--paper-2);
  box-shadow: var(--shadow-soft);
}

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

.page-faq .faq-figure figcaption {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .05em;
  line-height: 1.6;
  color: var(--slate);
  padding: 8px 12px;
  border-top: 1px solid var(--line);
}

/* ---------- 面板现象 ---------- */

.page-faq .sym-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 16px 0 0;
}

.page-faq .sym-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-top: 4px solid var(--orange);
  background: var(--paper-2);
}

.page-faq .sym-card h4 {
  margin: 0;
  font-family: var(--font-head);
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .05em;
}

.page-faq .sym-card p {
  margin: 0;
  flex: 1 1 auto;
  font-size: .86rem;
  line-height: 1.78;
  color: #17313F;
}

.page-faq .sym-card .tag {
  align-self: flex-start;
}

/* ---------- 材料清单 ---------- */

.page-faq .mat-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .mat-item {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 10px 12px;
  border: 1px dashed var(--line);
  background: var(--paper);
  cursor: pointer;
  font-size: .88rem;
  line-height: 1.7;
  transition: background .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .mat-item .mono {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--slate);
  padding-top: .3em;
}

.page-faq .mat-item input {
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  margin: 4px 0 0;
  border: 2px solid var(--slate);
  background: var(--paper);
  cursor: pointer;
  position: relative;
  flex: none;
}

.page-faq .mat-item input:checked {
  background: var(--mint);
  border-color: var(--teal);
}

.page-faq .mat-item input:checked::after {
  content: "";
  position: absolute;
  left: 3px;
  top: 0;
  width: 5px;
  height: 9px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(42deg);
}

.page-faq .mat-item input:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.page-faq .mat-item:has(input:checked) {
  border-style: solid;
  border-color: var(--teal);
  background: var(--mist);
}

/* ---------- 路径对照 ---------- */

.page-faq .route-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 18px 0 0;
}

.page-faq .route-track {
  padding: 13px 14px 17px;
  border: 2px solid var(--ink);
  background: var(--paper);
}

.page-faq .route-track--old {
  border-style: dashed;
  border-color: var(--line);
  background: var(--paper-2);
}

.page-faq .route-track--new {
  border-color: var(--teal);
  box-shadow: var(--shadow-soft);
}

.page-faq .route-track-label {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: .8rem;
  letter-spacing: .1em;
  font-weight: 700;
  color: var(--slate);
}

.page-faq .route-track-label .mono {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--ink);
  background: var(--amber);
  padding: 0 6px;
}

.page-faq .route-track--new .route-track-label .mono {
  background: var(--mint);
  color: var(--ink);
}

.page-faq .route-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.page-faq .route-steps li {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  border: 1px solid var(--line);
  background: var(--paper);
  font-size: .83rem;
  letter-spacing: .04em;
}

.page-faq .route-steps li + li::before {
  content: "→";
  position: absolute;
  left: -13px;
  color: var(--line);
  font-size: .8rem;
  line-height: 1;
}

.page-faq .route-steps .is-added {
  border-color: var(--teal);
  background: var(--mist);
  font-weight: 700;
  color: var(--ink);
}

.page-faq .route-steps .is-added::before {
  color: var(--orange);
}

.page-faq .route-steps .tag {
  font-size: .64rem;
  padding: 0 5px;
}

/* ---------- 提交流程 ---------- */

.page-faq .step-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-faq .step-list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}

.page-faq .step-list li:last-child {
  border-bottom: 0;
}

.page-faq .step-list > li > .mono {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--teal);
  background: var(--mist);
  font-family: var(--font-mono);
  font-size: .74rem;
  color: var(--teal);
}

.page-faq .step-list h4 {
  margin: 0 0 3px;
  font-family: var(--font-head);
  font-size: .93rem;
  font-weight: 700;
  letter-spacing: .05em;
}

.page-faq .step-list p {
  margin: 0;
  font-size: .87rem;
  line-height: 1.78;
  color: #17313F;
}

/* ---------- 延伸入口 ---------- */

.page-faq .faq-next {
  margin-top: clamp(22px, 3.2vw, 36px);
  padding-top: 15px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .04em;
  color: var(--line);
}

.page-faq .faq-next a {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(14, 143, 115, .42);
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-next a:hover,
.page-faq .faq-next a:focus-visible {
  color: var(--ink);
  border-color: var(--ink);
}

/* ---------- 人工协助 ---------- */

.page-faq .faq-contact {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding: clamp(32px, 5vw, 66px) 0;
}

.page-faq .faq-contact::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--mint), var(--teal) 45%, var(--orange));
}

.page-faq .faq-contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
  align-items: start;
}

.page-faq .faq-contact .eyebrow {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--mint);
  margin: 0 0 10px;
}

.page-faq .faq-contact h2 {
  max-width: 20ch;
}

.page-faq .faq-contact-copy p:last-child {
  margin: 0;
  max-width: 52ch;
  font-size: .92rem;
  line-height: 1.85;
  color: rgba(244, 241, 232, .78);
}

.page-faq .faq-contact-card {
  border: 2px solid var(--slate);
  background: rgba(51, 71, 91, .38);
  padding: clamp(16px, 2.4vw, 24px);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-contact-card .contact-row {
  display: grid;
  gap: 3px;
  padding: 0 0 12px;
  margin-bottom: 12px;
  border-bottom: 1px solid rgba(138, 153, 168, .32);
}

.page-faq .faq-contact-card .contact-label {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--mint);
}

.page-faq .faq-contact-card .contact-value {
  font-size: .96rem;
  letter-spacing: .02em;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-contact-card .copy-btn {
  margin: 2px 0 6px;
}

.page-faq .faq-contact-card .copy-note {
  display: block;
  min-height: 1.2em;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--mint);
}

.page-faq .faq-contact-card .btn--ghost {
  margin-top: 6px;
  width: 100%;
  text-align: center;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .page-faq .sym-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .route-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-triage-grid {
    grid-template-columns: minmax(200px, 252px) minmax(0, 1fr);
    gap: clamp(24px, 3.4vw, 44px);
  }

  .page-faq .faq-idx {
    position: sticky;
    top: 22px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-contact-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-contact-card .btn--ghost {
    width: auto;
    display: inline-block;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick a,
  .page-faq .faq-caret,
  .page-faq .faq-idx-list a,
  .page-faq .mat-item,
  .page-faq .faq-next a {
    transition: none;
  }

  .page-faq .faq-quick a:hover,
  .page-faq .faq-quick a:focus-visible {
    transform: none;
  }
}