.page-faq {
  background: var(--ink);
  color: var(--warm);
}

.page-faq .breadcrumb {
  padding-top: clamp(18px, 3vw, 28px);
}

/* ---------- Hero ---------- */
.page-faq .tut-hero {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
  padding: clamp(20px, 3vw, 34px) 0 clamp(28px, 4vw, 46px);
}

.page-faq .tut-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 6.4vw, 74px);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: 0.01em;
  color: var(--warm);
  max-width: 20ch;
  text-wrap: balance;
}

.page-faq .tut-hero__lede {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--haze);
}

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

.page-faq .tut-hero__strip > div {
  background: var(--panel);
  padding: 14px 16px;
  display: grid;
  gap: 8px;
}

.page-faq .tut-hero__strip dt {
  font-size: 11px;
  line-height: 1.4;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--haze);
}

.page-faq .tut-hero__strip dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1;
  color: var(--cyan);
}

.page-faq .tut-hero__strip dd small {
  font-size: 0.48em;
  color: var(--haze);
  margin-left: 2px;
}

@media (min-width: 760px) {
  .page-faq .tut-hero__strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 940px) {
  .page-faq .tut-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: var(--gap);
    align-items: end;
  }
  .page-faq .tut-hero .eyebrow {
    grid-column: 1 / -1;
  }
  .page-faq .tut-hero__title {
    grid-column: 1;
  }
  .page-faq .tut-hero__lede {
    grid-column: 2;
    padding-bottom: 6px;
  }
  .page-faq .tut-hero__strip {
    grid-column: 1 / -1;
    margin-top: 10px;
  }
}

/* ---------- 目录 ---------- */
.page-faq .tut-toc {
  border-top: var(--line);
  border-bottom: var(--line);
  padding: 14px 0 10px;
}

.page-faq .tut-toc > summary {
  list-style: none;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--cyan);
  padding-bottom: 10px;
}

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

.page-faq .tut-toc > summary::after {
  content: " +";
  color: var(--haze);
}

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

.page-faq .tut-toc__list {
  list-style: none;
  margin: 0;
  padding: 0 0 8px;
  display: grid;
  gap: 4px;
}

.page-faq .tut-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 0;
  font-size: 14px;
  color: var(--haze);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .tut-toc__list a:hover,
.page-faq .tut-toc__list a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .tut-toc__no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--clay);
}

@media (min-width: 720px) {
  .page-faq .tut-toc__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    column-gap: var(--gap);
  }
}

/* ---------- 区块骨架 ---------- */
.page-faq .tut-section {
  padding: clamp(36px, 5vw, 76px) 0;
  border-bottom: var(--line);
}

.page-faq .tut-section:last-child {
  border-bottom: 0;
}

.page-faq .tut-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 36px);
}

.page-faq .tut-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 4vw, 46px);
  font-weight: 700;
  line-height: 1.04;
  color: var(--warm);
  max-width: 24ch;
}

.page-faq .tut-head p {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--haze);
}

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

/* ---------- 登录步骤 ---------- */
.page-faq .tut-login {
  display: grid;
  gap: var(--gap);
}

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

.page-faq .tut-step {
  position: relative;
  padding: 16px 18px 16px 46px;
  background: var(--panel);
  border: var(--line);
  border-left: 2px solid var(--moss);
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-faq .tut-step:has(.tut-step__box:checked) {
  border-left-color: var(--cyan);
  background: linear-gradient(120deg, rgba(56, 242, 208, 0.06), transparent 60%), var(--panel);
}

.page-faq .tut-step__box {
  position: absolute;
  left: 14px;
  top: 18px;
  width: 16px;
  height: 16px;
  margin: 0;
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--moss);
  background: transparent;
  cursor: pointer;
  border-radius: 0;
}

.page-faq .tut-step__box:checked {
  background: var(--cyan);
  border-color: var(--cyan);
}

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

.page-faq .tut-step__label {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 4px 12px;
  cursor: pointer;
}

.page-faq .tut-step__num {
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.1;
  color: var(--cyan);
}

.page-faq .tut-step__title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--warm);
}

.page-faq .tut-step__text {
  grid-column: 2;
  font-size: 14px;
  line-height: 1.78;
  color: var(--haze);
}

.page-faq .tut-step__text a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .tut-art {
  margin: 0;
  background: var(--panel);
  border: var(--line);
  overflow: hidden;
  align-self: start;
}

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

.page-faq .tut-art--tall img {
  aspect-ratio: 3 / 4;
}

.page-faq .tut-art--wide img {
  aspect-ratio: 3 / 2;
}

.page-faq .tut-art figcaption {
  padding: 12px 14px;
  font-size: 12px;
  line-height: 1.65;
  color: var(--haze);
  border-top: var(--line);
}

@media (min-width: 1020px) {
  .page-faq .tut-login {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }
}

/* ---------- 路径条 ---------- */
.page-faq .tut-path {
  counter-reset: path;
  list-style: none;
  margin: 0 0 clamp(20px, 3vw, 32px);
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.page-faq .tut-path li {
  counter-increment: path;
  position: relative;
  background: var(--panel);
  border: var(--line);
  border-bottom: 2px solid var(--moss);
  padding: 16px 16px 16px 44px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--warm);
}

.page-faq .tut-path li::before {
  content: counter(path, decimal-leading-zero);
  position: absolute;
  left: 14px;
  top: 17px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

.page-faq .tut-notes {
  display: grid;
  gap: 14px;
  max-width: 68ch;
  border-left: 2px solid var(--clay);
  padding-left: clamp(16px, 2.5vw, 26px);
}

.page-faq .tut-notes p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--haze);
}

.page-faq .tut-notes__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 五项指标 ---------- */
.page-faq .tut-metrics {
  list-style: none;
  margin: 0 0 clamp(20px, 3vw, 34px);
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}

.page-faq .tut-metric {
  background: var(--panel);
  border: var(--line);
  border-top: 2px solid var(--moss);
  padding: 16px;
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-faq .tut-metric:nth-child(1) {
  border-top-color: var(--cyan);
}

.page-faq .tut-metric:nth-child(2) {
  border-top-color: var(--orange);
}

.page-faq .tut-metric:nth-child(3) {
  border-top-color: var(--clay);
}

.page-faq .tut-metric:nth-child(4) {
  border-top-color: rgba(56, 242, 208, 0.5);
}

.page-faq .tut-metric:nth-child(5) {
  border-top-color: var(--haze);
}

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

.page-faq .tut-metric h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 21px;
  line-height: 1.2;
  color: var(--warm);
}

.page-faq .tut-metric p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--haze);
}

/* ---------- 对比评测卡 ---------- */
.page-faq .tut-compare {
  display: grid;
  gap: 12px;
}

.page-faq .tut-compare__side {
  background: var(--panel);
  border: var(--line);
  padding: clamp(18px, 2.6vw, 28px);
  clip-path: polygon(18px 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%, 0 18px);
}

.page-faq .tut-compare__side h3 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.1;
  color: var(--warm);
}

.page-faq .tut-compare__axis {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56, 242, 208, 0.7), transparent);
}

.page-faq .tut-compare__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .tut-compare__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--haze);
}

.page-faq .tut-compare__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}

.page-faq .tut-order {
  list-style: none;
  counter-reset: order;
  margin: clamp(18px, 2.5vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.page-faq .tut-order li {
  counter-increment: order;
  position: relative;
  padding: 12px 14px 12px 42px;
  border: var(--line-soft);
  font-size: 14px;
  line-height: 1.6;
  color: var(--warm);
}

.page-faq .tut-order li::before {
  content: counter(order);
  position: absolute;
  left: 14px;
  top: 11px;
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink);
  background: var(--orange);
}

@media (min-width: 880px) {
  .page-faq .tut-compare {
    grid-template-columns: minmax(0, 1fr) 48px minmax(0, 1fr);
    align-items: stretch;
  }
  .page-faq .tut-compare__axis {
    height: auto;
    background: linear-gradient(
      158deg,
      transparent calc(50% - 1px),
      rgba(56, 242, 208, 0.75) 50%,
      transparent calc(50% + 1px)
    );
  }
}

/* ---------- 导出 ---------- */
.page-faq .tut-exports {
  display: grid;
  gap: 12px;
}

.page-faq .tut-export {
  background: linear-gradient(158deg, var(--panel), var(--abyss));
  border: var(--line);
  padding: clamp(18px, 2.6vw, 28px);
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .tut-export h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.12;
  color: var(--warm);
}

.page-faq .tut-export p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--haze);
}

.page-faq .tut-export__fields {
  list-style: none;
  margin: 2px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .tut-export__fields li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--warm);
}

.page-faq .tut-export__fields li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 10px;
  height: 1px;
  background: var(--cyan);
}

.page-faq .tut-export__note {
  color: var(--haze);
  border-top: var(--line);
  padding-top: 10px;
}

@media (min-width: 820px) {
  .page-faq .tut-exports {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 跨区对照 ---------- */
.page-faq .tut-region {
  display: grid;
  gap: var(--gap);
}

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

.page-faq .tut-region__list li {
  border-left: 1px solid var(--moss);
  padding-left: 16px;
}

.page-faq .tut-region__list h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--warm);
}

.page-faq .tut-region__list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--haze);
}

.page-faq .tut-region__aside {
  background: var(--panel);
  border: var(--line);
  border-top: 2px solid var(--clay);
  padding: clamp(18px, 2.6vw, 26px);
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .tut-region__aside p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--haze);
}

@media (min-width: 960px) {
  .page-faq .tut-region {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }
}

/* ---------- 故障排查 ---------- */
.page-faq .tut-faq {
  display: grid;
  gap: 10px;
}

.page-faq .tut-faq__item {
  background: var(--panel);
  border: var(--line);
  border-left: 2px solid var(--moss);
  transition: border-color 0.18s var(--ease);
}

.page-faq .tut-faq__item[open] {
  border-left-color: var(--orange);
}

.page-faq .tut-faq__item > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 16px 18px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--warm);
}

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

.page-faq .tut-faq__item > summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .tut-faq__item[open] > summary::before {
  content: "−";
  color: var(--orange);
}

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

.page-faq .tut-faq__body {
  padding: 0 18px 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--haze);
}

.page-faq .tut-faq__body ol {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 7px;
}

.page-faq .tut-faq__body li::marker {
  font-family: var(--font-mono);
  color: var(--clay);
}

/* ---------- 人工支持 ---------- */
.page-faq .tut-support__grid {
  display: grid;
  gap: 12px;
}

.page-faq .tut-contact {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 1px;
  background: var(--moss);
  border: var(--line);
}

.page-faq .tut-contact > div {
  background: var(--panel);
  padding: 16px;
  display: grid;
  gap: 6px;
}

.page-faq .tut-contact dt {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--haze);
}

.page-faq .tut-contact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.5;
  color: var(--warm);
  word-break: break-word;
}

.page-faq .tut-support__prep {
  background: var(--panel);
  border: var(--line);
  border-top: 2px solid var(--cyan);
  padding: clamp(18px, 2.6vw, 26px);
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .tut-support__prep h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 26px);
  line-height: 1.2;
  color: var(--warm);
}

.page-faq .tut-support__prep ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .tut-support__prep li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--haze);
}

.page-faq .tut-support__prep li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 7px;
  height: 7px;
  background: var(--orange);
}

@media (min-width: 880px) {
  .page-faq .tut-support__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
  }
}