.page-faq {
  --tut-line: 1px solid var(--grid);
  --tut-on-light: #3c4a40;
  padding-bottom: 80px;
}

/* ---------- 首屏 ---------- */
.page-faq .tut-hero {
  display: grid;
  gap: 32px;
  padding: 22px 0 48px;
  border-bottom: var(--tut-line);
}

.page-faq .tut-hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 7.4vw, 52px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--board);
  margin: 14px 0 0;
  max-width: 18ch;
}

.page-faq .tut-hero__lede {
  margin: 18px 0 0;
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink);
  max-width: 62ch;
}

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

.page-faq .tut-gauge {
  border-top: 2px solid var(--lime);
  padding-top: 16px;
}

.page-faq .tut-gauge__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--stone);
  margin: 0 0 14px;
}

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

.page-faq .tut-scale li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  color: var(--ink);
  padding: 9px 0;
  border-bottom: 1px dashed var(--grid);
}

.page-faq .tut-scale .mono {
  font-size: 12px;
  color: var(--lime);
}

/* ---------- 分段控件 ---------- */
.page-faq .tut-tabs-wrap {
  margin-top: 48px;
  scroll-margin-top: calc(var(--bar-h) + 16px);
}

.page-faq .segmented {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: var(--tut-line);
  border-left: var(--tut-line);
}

.page-faq .segmented [role="tab"] {
  appearance: none;
  -webkit-appearance: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14.5px;
  color: var(--stone);
  background: transparent;
  border: 0;
  border-right: var(--tut-line);
  border-bottom: var(--tut-line);
  padding: 16px 14px;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .segmented [role="tab"]:hover {
  color: var(--board);
  background: var(--stand);
}

.page-faq .segmented [role="tab"]:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-faq .segmented [role="tab"][aria-selected="true"] {
  color: var(--lime);
  background: var(--stand);
  box-shadow: inset 0 -2px 0 var(--lime);
}

.page-faq .segmented [role="tabpanel"] {
  grid-column: 1 / -1;
  border-right: var(--tut-line);
  border-bottom: var(--tut-line);
  padding: 28px 16px 36px;
  outline: none;
}

.page-faq .segmented [role="tabpanel"]:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-faq .segmented [role="tabpanel"] h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(22px, 4.6vw, 32px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--board);
  margin: 0 0 12px;
}

.page-faq .tut-panel__intro {
  margin: 0 0 28px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--stone);
  max-width: 64ch;
}

/* ---------- 步骤刻度 ---------- */
.page-faq .tut-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-faq .tut-step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 18px 0;
  border-top: 1px dashed var(--grid);
}

.page-faq .tut-step__idx {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime);
  padding-top: 3px;
}

.page-faq .tut-step__idx::after {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  margin-top: 8px;
  background: var(--lime);
  opacity: 0.7;
}

.page-faq .tut-step h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  color: var(--board);
  margin: 0 0 6px;
}

.page-faq .tut-step p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--ink);
  max-width: 68ch;
}

/* ---------- 图 ---------- */
.page-faq .tut-figure {
  margin: 28px 0 0;
  border: var(--tut-line);
  background: var(--stand);
  overflow: hidden;
}

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

.page-faq .tut-figure figcaption {
  padding: 11px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--stone);
  border-top: var(--tut-line);
}

/* ---------- 提示块 ---------- */
.page-faq .tut-note {
  margin-top: 30px;
  padding-left: 18px;
  border-left: 3px solid var(--lime);
}

.page-faq .tut-note h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  color: var(--board);
  margin: 0 0 10px;
}

.page-faq .tut-note p {
  margin: 0 0 10px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--ink);
  max-width: 68ch;
}

.page-faq .tut-note p:last-child {
  margin-bottom: 0;
}

.page-faq .tut-tail {
  margin: 26px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--lime);
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--ink);
  max-width: 68ch;
}

/* ---------- 导出两格式 ---------- */
.page-faq .tut-export {
  display: grid;
  border-top: var(--tut-line);
  border-left: var(--tut-line);
  margin-bottom: 30px;
}

.page-faq .tut-export article {
  border-right: var(--tut-line);
  border-bottom: var(--tut-line);
  padding: 20px;
}

.page-faq .tut-export__tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--pitch);
  background: var(--lime);
  padding: 3px 9px;
  margin: 0 0 12px;
}

.page-faq .tut-export h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  color: var(--board);
  margin: 0 0 8px;
}

.page-faq .tut-export article > p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 月卡与稳定版 ---------- */
.page-faq .tut-version {
  position: relative;
  margin-top: 64px;
  padding: 54px 0 60px;
  background: var(--board);
  color: var(--tut-on-light);
}

.page-faq .tut-version::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--lime) 0 42%, var(--orange) 42% 100%);
}

.page-faq .tut-version__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--clay);
  margin: 0 0 10px;
}

.page-faq .tut-version h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 4.8vw, 34px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--void);
  margin: 0 0 12px;
}

.page-faq .tut-version__intro {
  margin: 0 0 28px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--tut-on-light);
  max-width: 66ch;
}

.page-faq .tut-version__table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-top: 2px solid var(--void);
}

.page-faq .tut-version table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-faq .tut-version th,
.page-faq .tut-version td {
  text-align: left;
  padding: 14px 18px 14px 0;
  border-bottom: 1px solid rgba(11, 31, 23, 0.16);
  vertical-align: top;
  line-height: 1.7;
}

.page-faq .tut-version thead th {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  color: var(--stone);
}

.page-faq .tut-version thead th.is-focus {
  color: var(--void);
}

.page-faq .tut-version tbody th {
  font-weight: 600;
  color: var(--void);
  white-space: nowrap;
}

.page-faq .tut-version td {
  color: var(--tut-on-light);
}

.page-faq .tut-version td.is-focus {
  color: var(--void);
  font-weight: 600;
  box-shadow: inset 2px 0 0 var(--lime);
  padding-left: 14px;
}

.page-faq .tut-version__tail {
  margin: 26px 0 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--tut-on-light);
  max-width: 72ch;
}

.page-faq .tut-version__tail a {
  color: var(--clay);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 记录回看 ---------- */
.page-faq .tut-log {
  padding: 60px 0;
  border-bottom: var(--tut-line);
}

.page-faq .tut-log__grid {
  display: grid;
  gap: 26px;
}

.page-faq .tut-log__head .eyebrow {
  margin: 0;
}

.page-faq .tut-log h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(22px, 4.6vw, 34px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--board);
  margin: 12px 0 0;
}

.page-faq .tut-log__body p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink);
  max-width: 68ch;
}

.page-faq .tut-log__body a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .tut-log__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 18px 0 0;
  border-top: var(--tut-line);
  display: grid;
  gap: 12px;
}

.page-faq .tut-log__list li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 14.5px;
  color: var(--stone);
  line-height: 1.6;
}

.page-faq .tut-log__list .mono {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--lime);
}

/* ---------- 自助排查 ---------- */
.page-faq .tut-help {
  padding: 60px 0;
  border-bottom: var(--tut-line);
}

.page-faq .tut-help .eyebrow {
  margin: 0;
}

.page-faq .tut-help h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(22px, 4.6vw, 34px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--board);
  margin: 12px 0 28px;
}

.page-faq .tut-faq {
  border-top: var(--tut-line);
}

.page-faq .tut-faq details {
  border-bottom: var(--tut-line);
}

.page-faq .tut-faq summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 17px 40px 17px 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.55;
  color: var(--board);
  transition: color 0.2s var(--ease);
}

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

.page-faq .tut-faq summary:hover {
  color: var(--lime);
}

.page-faq .tut-faq summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-faq .tut-faq summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--lime);
}

.page-faq .tut-faq details[open] summary::after {
  content: "−";
}

.page-faq .tut-faq details p {
  margin: 0 0 20px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink);
  max-width: 70ch;
}

/* ---------- 联系 ---------- */
.page-faq .tut-contact {
  padding: 56px 0 0;
}

.page-faq .tut-contact__inner {
  display: grid;
  gap: 28px;
}

.page-faq .tut-contact h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(22px, 4.6vw, 32px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--board);
  margin: 0 0 12px;
}

.page-faq .tut-contact__lead {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink);
  max-width: 62ch;
}

.page-faq .tut-contact__lead a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .tut-contact__box {
  border: var(--tut-line);
  border-left: 3px solid var(--lime);
  background: var(--stand);
  padding: 20px;
}

.page-faq .tut-contact__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

.page-faq .tut-contact__mail,
.page-faq .tut-contact__hours {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.5;
  color: var(--lime);
  word-break: break-all;
}

.page-faq .tut-contact__hours {
  margin-bottom: 20px;
}

.page-faq .tut-contact .copy-chip {
  display: inline-block;
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--lime);
  background: transparent;
  color: var(--lime);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 13px;
  padding: 9px 16px;
  cursor: pointer;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .tut-contact .copy-chip:hover {
  background: var(--lime);
  color: var(--pitch);
}

.page-faq .tut-contact .copy-chip:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .tut-log__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .tut-log__list li {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }
}

@media (min-width: 820px) {
  .page-faq .tut-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: end;
    padding: 30px 0 56px;
  }

  .page-faq .tut-gauge {
    padding-top: 18px;
  }

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

  .page-faq .segmented [role="tab"] {
    font-size: 16px;
    padding: 18px 20px;
  }

  .page-faq .segmented [role="tabpanel"] {
    padding: 42px 34px 48px;
  }

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

  .page-faq .tut-step {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 18px;
  }
}

@media (min-width: 900px) {
  .page-faq .tut-log__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .tut-contact__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-faq .tut-hero h1 {
    font-size: 56px;
  }

  .page-faq .tut-version {
    padding: 64px 0 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .segmented [role="tab"],
  .page-faq .tut-faq summary,
  .page-faq .tut-contact .copy-chip {
    transition: none;
  }
}