/* ============================================================
   帮助中心 ｜ 页面专属样式（全部限定在 .page-faq 作用域内）
   ============================================================ */

.page-faq {
  --faq-night: rgba(245, 247, 248, 0.76);
  --faq-night-dim: rgba(245, 247, 248, 0.62);
  --faq-day: #3c4f5e;
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-faq.crumb,
.page-faq .crumb {
  padding-top: 18px;
  padding-bottom: 14px;
  font-size: 12.5px;
  letter-spacing: 0.02em;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-mast {
  position: relative;
  padding: 26px 0 52px;
  background:
    radial-gradient(118% 96% at 84% -14%, rgba(53, 208, 165, 0.11), transparent 58%),
    radial-gradient(90% 80% at 8% 108%, rgba(242, 160, 61, 0.09), transparent 60%),
    var(--ink);
  border-bottom: 1px solid rgba(201, 214, 220, 0.1);
}

.page-faq .faq-mast .eyebrow {
  color: var(--amber);
  letter-spacing: 0.2em;
}

.page-faq .faq-mast__title {
  margin: 14px 0 0;
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(30px, 7.4vw, 54px);
  line-height: 1.14;
  letter-spacing: -0.012em;
  color: var(--mist);
  max-width: 17ch;
}

.page-faq .faq-mast__lede {
  margin: 22px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.95;
  color: var(--faq-night);
}

.page-faq .faq-jump {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

@media (min-width: 720px) {
  .page-faq .faq-jump {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }
}

.page-faq .faq-jump a {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 54px;
  padding: 13px 16px;
  border: 1px solid rgba(201, 214, 220, 0.16);
  border-radius: var(--r);
  background: var(--ink-2);
  color: var(--mist);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: border-color 0.26s var(--ease), background 0.26s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  border-color: var(--amber);
  background: var(--ink-3);
}

.page-faq .faq-jump .mono {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

/* ---------- 章节容器 ---------- */
.page-faq .faq-sec {
  padding: 54px 0;
}

@media (min-width: 900px) {
  .page-faq .faq-sec {
    padding: 84px 0;
  }
}

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

.page-faq .faq-sec--night .h2,
.page-faq .faq-sec--night h3 {
  color: var(--mist);
}

.page-faq .faq-sec--night .faq-sec__lede {
  color: var(--faq-night);
}

.page-faq .faq-sec--night .faq-sec__foot {
  color: var(--faq-night-dim);
}

.page-faq .faq-sec--mist {
  background: var(--mist);
  color: var(--faq-day);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-sec--mist .h2,
.page-faq .faq-sec--mist h3 {
  color: var(--ink-2);
}

.page-faq .chapter-num {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--amber);
}

.page-faq .faq-sec--mist .chapter-num {
  color: var(--amber-deep);
}

.page-faq .faq-sec .h2 {
  margin: 0;
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(23px, 4.4vw, 34px);
  line-height: 1.3;
  letter-spacing: -0.008em;
  max-width: 24ch;
}

.page-faq .faq-sec__lede {
  margin: 18px 0 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.95;
}

.page-faq .faq-sec__foot {
  margin: 26px 0 0;
  font-size: 14px;
  line-height: 1.9;
}

.page-faq .faq-sec__foot a {
  color: var(--jade);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 208, 165, 0.42);
  padding-bottom: 1px;
}

.page-faq .faq-sec__foot a:hover {
  border-bottom-color: var(--jade);
}

/* ---------- 三步卡 ---------- */
.page-faq .step-list {
  position: relative;
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

@media (min-width: 880px) {
  .page-faq .step-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
    padding-top: 0;
  }

  .page-faq .step-list::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 1px;
    background: linear-gradient(
      90deg,
      transparent 0%,
      rgba(242, 160, 61, 0.5) 12%,
      rgba(53, 208, 165, 0.38) 88%,
      transparent 100%
    );
  }
}

.page-faq .step-card {
  position: relative;
  padding: 30px 22px 26px;
  border: 1px solid rgba(201, 214, 220, 0.14);
  border-radius: var(--r);
  background: var(--ink-2);
}

.page-faq .step-card__num {
  position: absolute;
  top: -11px;
  left: 20px;
  display: inline-flex;
  align-items: center;
  height: 22px;
  padding: 0 9px;
  border: 1px solid rgba(242, 160, 61, 0.5);
  border-radius: 999px;
  background: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-faq .step-card__title {
  margin: 0 0 12px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.55;
}

.page-faq .step-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--faq-night-dim);
}

/* ---------- 图片通用 ---------- */
.page-faq .figure {
  margin: 0;
}

.page-faq .figure__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--r);
  border: 1px solid rgba(201, 214, 220, 0.16);
}

.page-faq .faq-sec--mist .figure__img {
  border-color: var(--haze);
}

.page-faq .figure__caption {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--fog);
}

/* ---------- 登录章节的下半段 ---------- */
.page-faq .login-detail {
  display: grid;
  gap: 24px;
  margin-top: 34px;
}

@media (min-width: 900px) {
  .page-faq .login-detail {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 0.85fr);
    gap: 34px;
    align-items: start;
  }
}

.page-faq .login-detail__note p {
  margin: 0 0 20px;
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--faq-night);
}

/* ---------- 入口对照 ---------- */
.page-faq .faq-sec--mist .figure {
  margin-top: 30px;
}

.page-faq .entry-list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .entry-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: #fff;
  overflow: hidden;
}

.page-faq .entry-pair__no {
  padding: 14px 18px 4px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--fog);
}

.page-faq .entry-pair__side {
  padding: 12px 18px 16px;
}

.page-faq .entry-pair__side--real {
  box-shadow: inset 3px 0 0 var(--jade);
  background: rgba(53, 208, 165, 0.065);
}

.page-faq .entry-pair__side--fake {
  box-shadow: inset 3px 0 0 var(--clay);
  background: rgba(169, 89, 91, 0.055);
  border-top: 1px solid var(--line);
}

.page-faq .entry-pair__tag {
  display: block;
  margin-bottom: 7px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.page-faq .entry-pair__side--real .entry-pair__tag {
  color: #1d8a6c;
}

.page-faq .entry-pair__side--fake .entry-pair__tag {
  color: var(--clay);
}

.page-faq .entry-pair__side p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-2);
}

@media (min-width: 880px) {
  .page-faq .entry-pair {
    grid-template-columns: 74px minmax(0, 1fr) minmax(0, 1fr);
    align-items: stretch;
  }

  .page-faq .entry-pair__no {
    padding: 22px 0 22px 20px;
    border-right: 1px solid var(--line);
  }

  .page-faq .entry-pair__side {
    padding: 20px 22px 22px;
  }

  .page-faq .entry-pair__side--fake {
    border-top: 0;
  }
}

/* ---------- 版本清单 ---------- */
.page-faq .os-list {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(201, 214, 220, 0.14);
  border: 1px solid rgba(201, 214, 220, 0.16);
  border-radius: var(--r);
  overflow: hidden;
}

.page-faq .os-row {
  display: grid;
  gap: 5px;
  padding: 16px 18px;
  background: var(--ink-2);
}

@media (min-width: 780px) {
  .page-faq .os-row {
    grid-template-columns: minmax(0, 0.7fr) minmax(0, 1fr) minmax(0, 1.7fr);
    align-items: center;
    gap: 20px;
    padding: 18px 22px;
  }
}

.page-faq .os-row__name {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--mist);
}

.page-faq .os-row__ver {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--jade);
}

.page-faq .os-row__note {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--faq-night-dim);
}

.page-faq .check-list {
  list-style: none;
  counter-reset: faqck;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

@media (min-width: 880px) {
  .page-faq .check-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

.page-faq .check-list li {
  position: relative;
  padding-left: 42px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--faq-night);
}

.page-faq .check-list li::before {
  counter-increment: faqck;
  content: counter(faqck, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(242, 160, 61, 0.48);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--amber);
}

/* ---------- 留言说明 ---------- */
.page-faq .msg-list {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

@media (min-width: 760px) {
  .page-faq .msg-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 40px;
  }
}

.page-faq .msg-list li {
  padding-top: 16px;
  border-top: 1px solid var(--haze);
}

.page-faq .msg-list__k {
  display: block;
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--amber-deep);
}

.page-faq .msg-list__t {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-2);
}

.page-faq .msg-list__d {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--fog);
}

.page-faq .msg-panel {
  margin-top: 34px;
  padding: 24px 22px 26px;
  border: 1px solid var(--haze);
  border-left: 3px solid var(--amber);
  border-radius: var(--r);
  background: #fff;
}

.page-faq .msg-panel__label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--fog);
}

.page-faq .msg-panel__time {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: clamp(18px, 3.6vw, 24px);
  letter-spacing: 0.02em;
  color: var(--ink-2);
}

.page-faq .msg-panel__note {
  margin: 0 0 16px;
  max-width: 62ch;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--faq-day);
}

.page-faq .msg-panel__mail {
  margin: 0;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.01em;
  color: var(--amber-deep);
  word-break: break-all;
}

/* ---------- 问答组与侧栏 ---------- */
.page-faq .faq-close {
  display: grid;
  gap: 34px;
  margin-top: 34px;
}

@media (min-width: 960px) {
  .page-faq .faq-close {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.85fr);
    gap: 48px;
    align-items: start;
  }
}

.page-faq .qa-block .disclosure + .disclosure {
  margin-top: 12px;
}

.page-faq .qa-block .disclosure__label {
  font-size: 14.5px;
  line-height: 1.7;
}

.page-faq .qa-block .disclosure__body p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--faq-night-dim);
}

.page-faq .reach-panel {
  padding: 26px 22px 28px;
  border: 1px solid rgba(201, 214, 220, 0.16);
  border-radius: var(--r);
  background: var(--ink-2);
}

.page-faq .reach-panel__title {
  margin: 0 0 14px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .reach-panel__text {
  margin: 0 0 20px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--faq-night-dim);
}

.page-faq .reach-panel__list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .reach-panel__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid rgba(201, 214, 220, 0.14);
  font-size: 14px;
  color: var(--mist);
  word-break: break-all;
}

.page-faq .reach-panel__list .mono {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-faq .reach-panel .btn {
  width: 100%;
  justify-content: center;
}

/* ---------- 窄屏微调 ---------- */
@media (max-width: 480px) {
  .page-faq .faq-mast {
    padding-bottom: 42px;
  }

  .page-faq .faq-sec {
    padding: 44px 0;
  }

  .page-faq .step-card {
    padding: 28px 18px 22px;
  }

  .page-faq .entry-pair__side {
    padding: 12px 15px 16px;
  }

  .page-faq .msg-panel,
  .page-faq .reach-panel {
    padding: 20px 17px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump a {
    transition: none;
  }
}