.page-faq {
  --faq-gap: clamp(16px, 2.4vw, 28px);
  --faq-pad: clamp(20px, 4vw, 44px);
  --faq-dark: #141c2b;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  padding-bottom: clamp(40px, 6vw, 84px);
  overflow-x: clip;
}

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

.page-faq .breadcrumb {
  padding: clamp(14px, 2.4vw, 24px) 0 0;
  font-size: 13px;
}

.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
}

.page-faq .breadcrumb-link {
  color: var(--muted);
  text-decoration: none;
}

.page-faq .breadcrumb-link:hover,
.page-faq .breadcrumb-link:focus-visible {
  color: var(--blue);
}

.page-faq .breadcrumb-link[aria-current="page"] {
  color: var(--ink);
  font-weight: 700;
}

.page-faq .breadcrumb-sep {
  color: var(--line);
}

/* 首屏框景 */
.page-faq .faq-hero {
  padding-top: clamp(16px, 2.6vw, 28px);
}

.page-faq .faq-hero-inner {
  position: relative;
  display: grid;
  gap: var(--faq-gap);
  padding: var(--faq-pad);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-faq .faq-hero-inner::before {
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) - 2px);
  opacity: 0.6;
  pointer-events: none;
}

.page-faq .faq-hero-copy {
  min-width: 0;
}

.page-faq .faq-hero .display {
  font-family: var(--font-display);
  font-size: clamp(29px, 5.4vw, 52px);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin: 12px 0 0;
}

.page-faq .faq-hero .lead {
  margin: 16px 0 0;
  max-width: 60ch;
  color: var(--muted);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-faq .faq-hero-side {
  min-width: 0;
  padding: clamp(16px, 2.4vw, 22px);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-faq .faq-side-label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-transform: uppercase;
}

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

.page-faq .faq-side-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-side-item:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-side-item strong {
  display: block;
  font-size: 15px;
  line-height: 1.5;
}

.page-faq .faq-side-item p {
  margin: 2px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-side-item a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .status-dot--mint {
  background: var(--mint);
}

/* 通用章节头 */
.page-faq .faq-entries,
.page-faq .faq-trouble-wrap,
.page-faq .faq-checklist {
  padding-top: clamp(40px, 6vw, 76px);
}

.page-faq .section-title {
  font-family: var(--font-display);
  font-size: clamp(23px, 3.4vw, 34px);
  font-weight: 600;
  line-height: 1.28;
  letter-spacing: -0.01em;
  margin: 10px 0 0;
}

.page-faq .faq-section-lead {
  margin: 12px 0 0;
  max-width: 66ch;
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.8;
}

/* 入口象限 */
.page-faq .faq-entries-grid {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-faq .entry-grid {
  display: grid;
  gap: var(--faq-gap);
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: 0;
}

.page-faq .entry-tile {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  box-sizing: border-box;
  padding: clamp(16px, 2.4vw, 24px);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .entry-tile:hover,
.page-faq .entry-tile:focus-visible {
  border-color: var(--blue);
  transform: translateY(-2px);
  box-shadow: 0 18px 40px -34px rgba(47, 107, 255, 0.75);
}

.page-faq .entry-index {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--blue);
}

.page-faq .entry-title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .entry-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .entry-go {
  margin-top: auto;
  padding-top: 8px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--blue);
}

.page-faq .faq-entry-figure {
  margin: 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .figure-media {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--blue-tint);
}

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

.page-faq .figure-caption {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-inline-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 20px 0 0;
  font-size: 14px;
  color: var(--muted);
}

.page-faq .faq-inline-links a {
  color: var(--blue);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .faq-inline-links a:hover,
.page-faq .faq-inline-links a:focus-visible {
  border-bottom-color: currentColor;
}

/* 四步反馈 */
.page-faq .faq-steps {
  margin-top: clamp(44px, 6vw, 84px);
  padding: clamp(34px, 5vw, 68px) 0;
  background: var(--card);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-steps-figure {
  margin: clamp(22px, 3vw, 32px) 0 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .step-list {
  display: grid;
  gap: var(--faq-gap);
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .step-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(16px, 2.2vw, 22px);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-faq .step-num {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--blue);
  font-size: 14px;
  font-weight: 500;
}

.page-faq .step-title {
  margin: 2px 0 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .step-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .step-check {
  position: relative;
  margin-top: auto;
  padding-top: 6px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
}

.page-faq .step-check-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  margin: 0;
}

.page-faq .step-check-box {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--card);
}

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

.page-faq .step-check-input:checked ~ .step-check-box::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 5px;
  height: 9px;
  border-right: 2px solid var(--mint-deep);
  border-bottom: 2px solid var(--mint-deep);
  transform: rotate(40deg);
}

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

.page-faq .step-card:has(.step-check-input:checked) {
  border-color: var(--mint);
  background: rgba(123, 224, 184, 0.08);
}

.page-faq .step-card:has(.step-check-input:checked) .step-num {
  color: var(--mint-deep);
  border-color: var(--mint);
  background: rgba(123, 224, 184, 0.2);
}

.page-faq .faq-template {
  margin-top: clamp(20px, 3vw, 30px);
  padding: clamp(16px, 2.4vw, 24px);
  background: var(--blue-tint);
  border: 1px dashed rgba(47, 107, 255, 0.4);
  border-radius: var(--radius);
}

.page-faq .faq-template-title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
}

.page-faq .faq-template-lines {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .faq-template-lines .mono {
  display: inline-block;
  min-width: 3.4em;
  color: var(--blue-deep);
  font-size: 13px;
}

/* 排查区 */
.page-faq .faq-trouble {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .faq-rail {
  display: none;
}

.page-faq .faq-rail-title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-faq .faq-rail-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--line);
}

.page-faq .faq-rail-link {
  display: block;
  margin-left: -1px;
  padding: 8px 0 8px 14px;
  border-left: 2px solid transparent;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
}

.page-faq .faq-rail-link:hover,
.page-faq .faq-rail-link:focus-visible {
  color: var(--blue);
}

.page-faq .faq-rail-link[aria-current] {
  color: var(--blue);
  border-left-color: var(--blue);
  font-weight: 700;
}

.page-faq .faq-trouble-body {
  min-width: 0;
}

.page-faq .trouble-block {
  padding-top: clamp(26px, 4vw, 44px);
  margin-top: clamp(26px, 4vw, 44px);
  border-top: 1px solid var(--line);
}

.page-faq .trouble-block:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-faq .trouble-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.8vw, 27px);
  font-weight: 600;
  line-height: 1.35;
}

.page-faq .trouble-lead {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-item {
  margin-top: 10px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-item[open] {
  border-color: rgba(47, 107, 255, 0.45);
  box-shadow: 0 16px 36px -34px rgba(17, 24, 39, 0.6);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 13px clamp(14px, 2vw, 20px);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q::after {
  content: "＋";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--muted);
}

.page-faq .faq-item[open] .faq-q::after {
  content: "－";
  color: var(--blue);
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: -2px;
}

.page-faq .faq-q-icon {
  flex: none;
  margin-top: 3px;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--blue-tint);
  color: var(--blue);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.page-faq .faq-a {
  padding: 14px clamp(14px, 2vw, 20px) 18px;
  background: var(--paper);
  border-top: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-a p {
  margin: 0;
}

.page-faq .faq-a a {
  color: var(--blue);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

/* 客服与时效 */
.page-faq .faq-support {
  margin-top: clamp(44px, 6vw, 84px);
  padding: clamp(34px, 5vw, 68px) 0;
  background: var(--ink);
  color: var(--paper);
}

.page-faq .support-inner {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .faq-support .eyebrow {
  color: var(--mint);
}

.page-faq .faq-support .section-title {
  color: var(--paper);
}

.page-faq .support-lead {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(247, 248, 250, 0.74);
}

.page-faq .support-channels {
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-faq .support-channel {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-top: 12px;
  border-top: 1px solid rgba(217, 222, 231, 0.22);
}

.page-faq .support-channel:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .support-channel-label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(247, 248, 250, 0.6);
}

.page-faq .support-channel-value {
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .support-note {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(247, 248, 250, 0.66);
}

.page-faq .support-note a {
  color: var(--mint);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-faq .support-stats {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(217, 222, 231, 0.24);
  border: 1px solid rgba(217, 222, 231, 0.24);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .support-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: clamp(14px, 2vw, 20px);
  background: var(--faq-dark);
}

.page-faq .support-stat-num {
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 500;
  line-height: 1.1;
  color: var(--mint);
}

.page-faq .support-stat-label {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(247, 248, 250, 0.7);
}

/* 提交前清单 */
.page-faq .check-grid {
  display: grid;
  gap: var(--faq-gap);
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .check-item {
  padding: clamp(16px, 2.2vw, 22px);
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 3px solid var(--mint);
  border-radius: var(--radius);
}

.page-faq .check-mark {
  display: block;
  margin-bottom: 10px;
}

.page-faq .check-title {
  margin: 0;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .check-desc {
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-cta {
  margin-top: clamp(28px, 4vw, 46px);
  padding: clamp(20px, 3.4vw, 36px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: var(--blue-tint);
  border: 1px solid rgba(47, 107, 255, 0.28);
  border-radius: var(--radius);
}

.page-faq .faq-cta-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.4vw, 23px);
  font-weight: 600;
  line-height: 1.4;
}

.page-faq .faq-cta-desc {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* 窄屏以上逐步展开 */
@media (min-width: 560px) {
  .page-faq .entry-grid,
  .page-faq .check-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 760px) {
  .page-faq .step-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-entries-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-trouble {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(24px, 4vw, 52px);
    align-items: start;
  }

  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

  .page-faq .support-inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
  }

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

@media (min-width: 1040px) {
  .page-faq .step-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .check-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .entry-tile,
  .page-faq .step-card,
  .page-faq .faq-item {
    transition: none;
  }

  .page-faq .entry-tile:hover,
  .page-faq .entry-tile:focus-visible {
    transform: none;
  }
}
<<<END>>>