/* ===== 支持中心 · page-faq ===== */

.page-faq .faq-crumb {
  padding-top: 20px;
}

/* --- 首屏 --- */
.page-faq .faq-hero {
  position: relative;
  background: linear-gradient(180deg, var(--pine) 0%, var(--ink) 100%);
  border-bottom: 1px solid var(--line);
  padding: 30px 0 36px;
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(244, 239, 230, 0.045) 0 1px,
    transparent 1px 76px
  );
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 24px;
}

.page-faq .faq-hero__lead .mono-tag {
  display: block;
  margin: 0 0 12px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 14px;
  color: var(--paper);
  font-family: var(--font-head);
  font-size: clamp(30px, 7vw, 46px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__intro {
  margin: 0;
  max-width: 48ch;
  color: var(--paper-soft);
  font-size: 16px;
  line-height: 1.8;
}

.page-faq .faq-hero__chooser {
  border: 1px solid var(--line-strong);
  background: rgba(10, 15, 13, 0.5);
  border-radius: var(--r);
  padding: 16px;
}

.page-faq .faq-hero__chooser-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .faq-hero__chooser-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-faq .faq-hero__chooser-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 12px;
  background: rgba(244, 239, 230, 0.035);
  border-left: 2px solid var(--clay);
  color: var(--paper);
  font-size: 15px;
  line-height: 1.5;
  text-decoration: none;
  transition: border-color 180ms var(--ease), background 180ms var(--ease), transform 180ms var(--ease);
}

.page-faq .faq-hero__chooser-list a:hover,
.page-faq .faq-hero__chooser-list a:focus-visible {
  border-left-color: var(--flare);
  background: rgba(255, 106, 31, 0.09);
  transform: translateX(2px);
}

.page-faq .faq-hero__chooser-list em {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 12px;
  color: var(--amber);
}

/* --- 主布局 --- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  padding: 34px 0 64px;
}

.page-faq .faq-toc {
  align-self: start;
  border-top: 2px solid var(--amber);
  padding-top: 14px;
}

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

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: faq-toc;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(138px, 1fr));
  gap: 2px;
}

.page-faq .faq-toc__list li {
  counter-increment: faq-toc;
}

.page-faq .faq-toc__list a {
  position: relative;
  display: block;
  padding: 8px 10px 8px 34px;
  border-left: 2px solid transparent;
  color: var(--paper-soft);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-faq .faq-toc__list a::before {
  content: counter(faq-toc, decimal-leading-zero);
  position: absolute;
  left: 10px;
  top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--mist);
}

.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  color: var(--paper);
  border-left-color: var(--clay);
}

.page-faq .faq-toc__list a.is-current {
  color: var(--paper);
  border-left-color: var(--flare);
  background: rgba(255, 106, 31, 0.07);
}

.page-faq .faq-toc__list a.is-current::before {
  color: var(--flare);
}

/* --- 正文 --- */
.page-faq .faq-body a {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-body a:hover,
.page-faq .faq-body a:focus-visible {
  color: var(--flare);
}

.page-faq .faq-sec {
  scroll-margin-top: 24px;
  padding-bottom: 34px;
  margin-bottom: 34px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-sec:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: none;
}

.page-faq .faq-sec__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-sec__num {
  flex: 0 0 auto;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-faq .faq-sec__head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(20px, 3.4vw, 26px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-sec__lead {
  margin: 0 0 22px;
  max-width: 62ch;
  color: var(--paper-soft);
  font-size: 16px;
  line-height: 1.8;
}

.page-faq .faq-sec__split {
  display: grid;
  gap: 24px;
}

.page-faq .faq-sec__figure,
.page-faq .faq-sec__figure-wide {
  margin: 0;
}

.page-faq .faq-sec__figure-wide {
  margin-top: 24px;
}

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

/* --- 编号步骤 --- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-step:first-child {
  border-top-color: var(--line);
}

.page-faq .faq-step__num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--amber);
}

.page-faq .faq-step__body .sub-title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .faq-step__body p {
  margin: 0;
  color: var(--paper-soft);
  font-size: 15.5px;
  line-height: 1.8;
}

/* --- 三层排查 --- */
.page-faq .faq-check {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-check__item {
  position: relative;
  padding: 18px 0 18px 26px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-check__item:first-child {
  border-top-color: var(--line);
}

.page-faq .faq-check__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 20px;
  width: 2px;
  background: linear-gradient(180deg, var(--amber), rgba(216, 154, 60, 0));
}

.page-faq .faq-check__item h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .faq-check__item p {
  margin: 0;
  max-width: 62ch;
  color: var(--paper-soft);
  font-size: 15.5px;
  line-height: 1.8;
}

/* --- 留白章节：位置示意 --- */
.page-faq .faq-breath {
  margin: 4px 0 40px;
  padding: 30px 0 34px;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  text-align: center;
}

.page-faq .faq-breath__label {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .faq-map {
  display: block;
  width: 100%;
  max-width: 560px;
  height: auto;
  margin: 0 auto;
}

/* --- 多设备时间轴 --- */
.page-faq .faq-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-timeline__item {
  padding: 18px 0 20px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-timeline__item:last-child {
  border-bottom: none;
}

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

.page-faq .faq-timeline__item h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .faq-timeline__item p {
  margin: 0;
  color: var(--paper-soft);
  font-size: 15px;
  line-height: 1.75;
}

/* --- 折叠问答 --- */
.page-faq .faq-qa {
  border-top: 1px solid var(--line);
}

.page-faq .faq-q {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-q__q {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  list-style: none;
  cursor: pointer;
  color: var(--paper);
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.6;
  transition: color 180ms var(--ease);
}

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

.page-faq .faq-q__q::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--amber);
  transition: color 180ms var(--ease);
}

.page-faq .faq-q[open] > .faq-q__q::after {
  content: "−";
  color: var(--flare);
}

.page-faq .faq-q__q:hover,
.page-faq .faq-q__q:focus-visible {
  color: var(--amber);
}

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

.page-faq .faq-q__a p {
  margin: 0;
  max-width: 64ch;
  color: var(--paper-soft);
  font-size: 15.5px;
  line-height: 1.8;
}

/* --- 联系客服准备清单 --- */
.page-faq .faq-prep {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-prep li {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-faq .faq-prep__v {
  color: var(--paper-soft);
  font-size: 15.5px;
  line-height: 1.75;
}

.page-faq .faq-contact {
  padding: 18px 20px;
  background: rgba(255, 106, 31, 0.06);
  border-left: 2px solid var(--flare);
}

.page-faq .faq-contact p {
  margin: 0 0 10px;
  max-width: 68ch;
  color: var(--paper-soft);
  font-size: 15.5px;
  line-height: 1.8;
}

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

/* --- 桌面与平板 --- */
@media (min-width: 640px) {
  .page-faq .faq-prep li {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-sec__split {
    grid-template-columns: minmax(0, 1.5fr) minmax(220px, 1fr);
    gap: 30px;
    align-items: start;
  }

  .page-faq .faq-timeline {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-bottom: 1px solid var(--line);
  }

  .page-faq .faq-timeline__item {
    padding: 20px 20px 22px 0;
    border-bottom: none;
    border-right: 1px dashed var(--line);
  }

  .page-faq .faq-timeline__item:last-child {
    padding-right: 0;
    border-right: none;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-hero {
    padding: 40px 0 44px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(268px, 0.9fr);
    gap: 46px;
    align-items: end;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 56px;
    padding: 42px 0 76px;
  }

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

  .page-faq .faq-toc__list {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .page-faq .faq-breath {
    padding: 40px 0 46px;
    margin: 8px 0 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__chooser-list a,
  .page-faq .faq-toc__list a,
  .page-faq .faq-q__q {
    transition: none;
  }

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