/* ===== 操作教程页 专属样式 ===== */
.page-faq {
  display: block;
  background: var(--ink);
  color: var(--silver);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-faq .wrap {
  box-sizing: border-box;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 18px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 22px 0 38px;
  border-bottom: 1px solid var(--rail-line);
  background:
    radial-gradient(115% 85% at 92% -25%, rgba(0, 229, 200, 0.20), transparent 58%),
    radial-gradient(85% 70% at -12% 112%, rgba(255, 138, 61, 0.14), transparent 60%),
    var(--ink);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -40%;
  right: -20%;
  width: 64%;
  height: 175%;
  background: linear-gradient(135deg, rgba(0, 229, 200, 0.13), rgba(124, 255, 90, 0) 72%);
  transform: skewX(-9deg);
  pointer-events: none;
}

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

.page-faq .faq-hero__eyebrow {
  margin: 18px 0 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(27px, 8.2vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--white);
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  margin: 0 0 22px;
  max-width: 60ch;
  font-size: 15px;
  color: var(--silver);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid var(--rail-line);
  border-radius: var(--r-pill);
  background: rgba(16, 22, 28, 0.72);
  color: var(--silver);
  font-size: 13px;
  text-decoration: none;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  border-color: var(--cyan);
  color: var(--white);
  transform: translateY(-1px);
}

.page-faq .faq-jump__no {
  font-family: var(--font-num);
  font-size: 11px;
  color: var(--cyan);
}

/* ---------- 章节 ---------- */
.page-faq .faq-block {
  padding: 44px 0;
  border-bottom: 1px solid var(--rail-line);
}

.page-faq .faq-block--graphite {
  background: var(--graphite);
}

.page-faq .faq-block__head {
  margin-bottom: 24px;
}

.page-faq .faq-block__no {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-faq .faq-block__title {
  margin: 0 0 10px;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(20px, 5.4vw, 31px);
  line-height: 1.32;
  color: var(--white);
  max-width: 26ch;
}

.page-faq .faq-block__lead {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  color: var(--silver);
}

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

/* ---------- 栅格 ---------- */
.page-faq .faq-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

/* ---------- 步骤轨道 ---------- */
.page-faq .faq-steps {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps--loose {
  margin-top: 28px;
}

.page-faq .faq-steps::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 16px;
  bottom: 16px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0%, rgba(0, 229, 200, 0.16) 62%, rgba(0, 229, 200, 0) 100%);
}

.page-faq .faq-step {
  position: relative;
  padding: 0 0 26px 54px;
}

.page-faq .faq-step:last-child {
  padding-bottom: 0;
}

.page-faq .faq-step__num {
  position: absolute;
  left: 0;
  top: 0;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--cyan);
  background: var(--ink);
  color: var(--cyan);
  font-family: var(--font-num);
  font-size: 12px;
  box-shadow: 0 0 0 4px rgba(0, 229, 200, 0.06);
}

.page-faq .faq-block--graphite .faq-step__num {
  background: var(--graphite);
}

.page-faq .faq-step__title {
  margin: 5px 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16.5px;
  letter-spacing: 0.01em;
  color: var(--white);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 14.5px;
  color: var(--silver);
}

.page-faq .faq-step__text a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 200, 0.4);
}

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

/* ---------- 参数胶囊 ---------- */
.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-chips__item {
  padding: 7px 14px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(0, 229, 200, 0.32);
  background: rgba(0, 229, 200, 0.07);
  color: var(--white);
  font-size: 13px;
}

/* ---------- 图文 ---------- */
.page-faq .faq-figure {
  margin: 0;
}

.page-faq .figure__media {
  border-radius: var(--r-md);
  border: 1px solid var(--rail-line);
  background: var(--graphite-deep);
  overflow: hidden;
}

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

.page-faq .figure__caption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.65;
}

.page-faq .figure__caption .figure__tag {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 10px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(0, 229, 200, 0.35);
  color: var(--cyan);
  font-family: var(--font-num);
  font-size: 11px;
}

/* ---------- 提示卡 ---------- */
.page-faq .faq-aside {
  margin-top: 30px;
}

.page-faq .faq-tip {
  position: relative;
  max-width: 660px;
  padding: 22px 22px 24px;
  border-radius: var(--r-md);
  border: 1px solid rgba(0, 229, 200, 0.28);
  background: linear-gradient(140deg, rgba(0, 229, 200, 0.11) 0%, rgba(124, 255, 90, 0.04) 55%, rgba(7, 9, 12, 0) 100%);
  overflow: hidden;
}

.page-faq .faq-tip::after {
  content: "";
  position: absolute;
  right: -48px;
  bottom: -62px;
  width: 156px;
  height: 156px;
  border-radius: 50%;
  border: 1px solid rgba(0, 229, 200, 0.22);
  pointer-events: none;
}

.page-faq .faq-tip__tag {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--green);
}

.page-faq .faq-tip__title {
  margin: 0 0 8px;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: 18px;
  line-height: 1.45;
  color: var(--white);
}

.page-faq .faq-tip p {
  margin: 0;
  font-size: 14.5px;
  color: var(--silver);
}

.page-faq .faq-tip a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 200, 0.4);
}

/* ---------- 数据卡 ---------- */
.page-faq .faq-card {
  position: relative;
  padding: 24px 20px 22px;
  border-radius: var(--r-md);
  border: 1px solid var(--rail-line);
  background: var(--graphite-deep);
}

.page-faq .faq-card__coord {
  position: absolute;
  top: 14px;
  right: 16px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted-deep);
}

.page-faq .faq-card h3 {
  margin: 0 0 10px;
  padding-right: 44px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
  color: var(--white);
}

.page-faq .faq-card p {
  margin: 0 0 10px;
  font-size: 14.5px;
  color: var(--silver);
}

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

/* ---------- 排查分支 ---------- */
.page-faq .faq-branch {
  position: relative;
  padding-left: 26px;
}

.page-faq .faq-branch::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--orange), rgba(255, 138, 61, 0.08));
}

.page-faq .faq-branch__item {
  position: relative;
  padding-bottom: 22px;
}

.page-faq .faq-branch__item:last-child {
  padding-bottom: 0;
}

.page-faq .faq-branch__item::before {
  content: "";
  position: absolute;
  left: -23px;
  top: 9px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1px solid var(--orange);
  background: var(--ink);
}

.page-faq .faq-branch__pill {
  display: inline-block;
  margin-bottom: 8px;
  padding: 4px 12px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(255, 138, 61, 0.42);
  background: rgba(255, 138, 61, 0.12);
  color: var(--orange);
  font-size: 12.5px;
}

.page-faq .faq-branch__item p {
  margin: 0;
  font-size: 14.5px;
  color: var(--silver);
}

/* ---------- 问答折叠 ---------- */
.page-faq .faq-qa {
  margin: 0;
}

.page-faq .faq-q {
  border: 1px solid var(--rail-line);
  border-radius: var(--r-md);
  background: var(--graphite-deep);
  overflow: hidden;
}

.page-faq .faq-q + .faq-q {
  margin-top: 10px;
}

.page-faq .faq-q > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 52px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: 16px;
  line-height: 1.5;
  color: var(--white);
}

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

.page-faq .faq-q > summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-num);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
  transition: transform 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-q[open] > summary::after {
  transform: rotate(45deg);
  color: var(--green);
}

.page-faq .faq-q > summary:hover,
.page-faq .faq-q > summary:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-q__body {
  padding: 0 18px 18px;
  font-size: 14.5px;
  color: var(--silver);
}

.page-faq .faq-q__body p {
  margin: 0 0 10px;
}

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

/* ---------- 联系块 ---------- */
.page-faq .faq-contact {
  margin-top: 30px;
  padding: 24px 20px;
  border-radius: var(--r-md);
  border: 1px solid rgba(0, 229, 200, 0.3);
  background: linear-gradient(140deg, rgba(0, 229, 200, 0.1) 0%, rgba(7, 9, 12, 0) 72%);
}

.page-faq .faq-contact__label {
  display: inline-block;
  margin-bottom: 6px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--green);
}

.page-faq .faq-contact__mail {
  margin: 0 0 8px;
  font-family: var(--font-num);
  font-size: clamp(15px, 4.2vw, 20px);
  color: var(--white);
  word-break: break-all;
}

.page-faq .faq-contact__note {
  margin: 0 0 18px;
  max-width: 52ch;
  font-size: 14px;
  color: var(--silver);
}

/* ---------- 平板以上 ---------- */
@media (min-width: 720px) {
  .page-faq .wrap {
    padding: 0 28px;
  }

  .page-faq .faq-hero {
    padding: 30px 0 46px;
  }

  .page-faq .faq-block {
    padding: 56px 0;
  }

  .page-faq .faq-step {
    padding-left: 60px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-faq .wrap {
    padding: 0 40px;
  }

  .page-faq .faq-hero {
    padding: 42px 0 58px;
  }

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

  .page-faq .faq-block {
    padding: 68px 0;
  }

  .page-faq .faq-block__head {
    margin-bottom: 32px;
  }

  .page-faq .faq-grid--split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 46px;
    align-items: start;
  }

  .page-faq .faq-grid--two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-faq .faq-steps--loose {
    margin-top: 34px;
    padding-left: 8px;
  }

  .page-faq .faq-aside {
    margin-top: 38px;
  }

  .page-faq .faq-contact {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "label label"
      "mail  cta"
      "note  cta";
    align-items: center;
    column-gap: 32px;
  }

  .page-faq .faq-contact__label {
    grid-area: label;
  }

  .page-faq .faq-contact__mail {
    grid-area: mail;
    margin-bottom: 6px;
  }

  .page-faq .faq-contact__note {
    grid-area: note;
    margin-bottom: 0;
  }

  .page-faq .faq-contact .btn {
    grid-area: cta;
    align-self: center;
  }
}

/* ---------- 减弱动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump__link,
  .page-faq .faq-q > summary::after {
    transition: none;
  }

  .page-faq .faq-jump__link:hover,
  .page-faq .faq-jump__link:focus-visible {
    transform: none;
  }
}
</main>