/* ===== 帮助中心 · 页面专属样式（作用域 .page-faq） ===== */

.page-faq {
  --faq-side: 312px;
  --faq-gap: clamp(24px, 3.4vw, 52px);
  --faq-rule: rgba(185, 194, 204, .55);
  background: var(--paper);
  color: var(--graphite);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumbs {
  padding-top: clamp(18px, 2.6vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: clamp(14px, 2vw, 24px);
  padding: clamp(40px, 6vw, 78px) 0 clamp(34px, 5vw, 62px);
  overflow: hidden;
  color: var(--paper);
  background:
    radial-gradient(880px 420px at 84% -14%, rgba(31, 111, 168, .48), transparent 64%),
    radial-gradient(560px 320px at 6% 112%, rgba(214, 40, 40, .30), transparent 68%),
    linear-gradient(180deg, #0B0F14 0%, #111A24 58%, #0B0F14 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(185, 194, 204, .075) 1px, transparent 1px),
    linear-gradient(90deg, rgba(185, 194, 204, .075) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(78% 82% at 50% 26%, #000 18%, transparent 100%);
  mask-image: radial-gradient(78% 82% at 50% 26%, #000 18%, transparent 100%);
}

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

.page-faq .faq-hero .eyebrow {
  color: var(--ice-light);
  letter-spacing: .16em;
}

.page-faq .faq-hero h1 {
  margin: 16px 0 0;
  max-width: 14ch;
  font-size: clamp(36px, 6.2vw, 72px);
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: -.012em;
  color: #fff;
}

.page-faq .faq-lede {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: rgba(247, 245, 241, .78);
}

/* ---------- 流程条 ---------- */
.page-faq .faq-flow {
  margin-top: clamp(32px, 4.6vw, 58px);
  display: grid;
  gap: 12px;
}

.page-faq .faq-flow-node {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid rgba(185, 194, 204, .22);
  background: rgba(247, 245, 241, .045);
}

.page-faq .faq-flow-num,
.page-faq .faq-flow-tag {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1;
  letter-spacing: .14em;
  padding: 5px 7px;
  border: 1px solid rgba(255, 138, 61, .55);
  color: var(--amber);
}

.page-faq .faq-flow-tag {
  border-color: rgba(169, 214, 240, .45);
  color: var(--ice-light);
}

.page-faq .faq-flow-label {
  font-size: var(--fs-14);
  line-height: 1.5;
  color: rgba(247, 245, 241, .9);
}

.page-faq .faq-flow-node--end {
  border-color: rgba(255, 138, 61, .42);
  background: rgba(255, 138, 61, .08);
}

@media (min-width: 900px) {
  .page-faq .faq-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 34px;
  }

  .page-faq .faq-flow-node {
    padding: 15px 18px;
  }

  .page-faq .faq-flow-node::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 100%;
    width: 34px;
    height: 2px;
    margin-top: -1px;
    background: linear-gradient(90deg, var(--amber) 0%, rgba(255, 138, 61, .18) 100%);
  }

  .page-faq .faq-flow-node--end::after {
    content: none;
  }
}

/* ---------- 通用页内标题与索引编号 ---------- */
.page-faq .index-num {
  display: inline-block;
  padding-bottom: 7px;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .18em;
  color: var(--maple);
  border-bottom: 2px solid var(--maple);
}

.page-faq .faq-first h2,
.page-faq .faq-steps h2,
.page-faq .faq-contact h2 {
  margin: 0;
  font-size: clamp(24px, 3.1vw, 40px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -.008em;
  color: var(--void);
}

/* ---------- 勾选清单 ---------- */
.page-faq .faq-checklist {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-faq .faq-checklist li {
  position: relative;
  padding-left: 24px;
  font-size: var(--fs-16);
  line-height: 1.7;
  color: var(--graphite);
}

.page-faq .faq-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 12px;
  height: 2px;
  background: var(--amber);
}

/* ---------- 第一次到访 ---------- */
.page-faq .faq-first {
  padding: clamp(46px, 6.6vw, 92px) 0;
  background: var(--paper);
}

.page-faq .faq-first-grid {
  display: grid;
  gap: clamp(28px, 4vw, 50px);
  align-items: start;
}

.page-faq .faq-first-copy p {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: var(--fs-16);
  line-height: 1.8;
}

.page-faq .faq-first-copy .btn {
  margin-top: 26px;
}

.page-faq .faq-first-figure {
  margin: 0;
}

.page-faq .faq-first-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--mist);
}

@media (min-width: 900px) {
  .page-faq .faq-first-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(36px, 5vw, 76px);
  }
}

/* ---------- 两步注册拆解 ---------- */
.page-faq .faq-steps {
  padding: clamp(44px, 6.2vw, 88px) 0;
  background: linear-gradient(180deg, var(--mist) 0%, rgba(228, 239, 248, .4) 62%, var(--paper) 100%);
  border-top: 1px solid rgba(185, 194, 204, .4);
  border-bottom: 1px solid rgba(185, 194, 204, .4);
}

.page-faq .faq-steps-head {
  max-width: 70ch;
}

.page-faq .faq-sub {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-tabs {
  margin-top: clamp(26px, 3.6vw, 42px);
}

.page-faq .faq-tabs .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-tabs .tab {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  padding: 12px 6px;
  font-family: var(--font-sans);
  font-size: var(--fs-16);
  font-weight: 700;
  color: var(--muted);
  cursor: pointer;
  transition: color .18s ease, border-color .18s ease;
}

.page-faq .faq-tabs .tab:hover {
  color: var(--ice);
}

.page-faq .faq-tabs .tab[aria-selected="true"] {
  color: var(--maple);
  border-bottom-color: var(--maple);
}

.page-faq .faq-tabs .tab:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: 2px;
}

.page-faq .faq-tabs .tabpanel {
  padding-top: clamp(22px, 3vw, 34px);
}

.page-faq .faq-tabs .tabpanel[hidden] {
  display: none;
}

.page-faq .faq-step-mark {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .2em;
  color: var(--maple);
}

.page-faq .faq-step-lead {
  margin: 0;
  max-width: 64ch;
  font-size: var(--fs-16);
  line-height: 1.78;
}

/* ---------- 双栏问答台 ---------- */
.page-faq .faq-desk {
  padding: clamp(48px, 7vw, 96px) 0;
  background: var(--paper);
}

.page-faq .faq-desk-grid {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
  align-items: start;
  min-width: 0;
}

@media (min-width: 1000px) {
  .page-faq .faq-desk-grid {
    grid-template-columns: var(--faq-side) minmax(0, 1fr);
    gap: var(--faq-gap);
  }
}

/* 左栏：查找 + 分区索引 */
.page-faq .faq-finder {
  padding: 16px;
  background: #fff;
  border: var(--edge);
  box-shadow: var(--shadow-paper);
}

.page-faq .faq-finder-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--muted);
}

.page-faq .faq-finder-box {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  padding: 11px 12px;
  border: 1px solid var(--silver);
  background: var(--paper);
  font-size: var(--fs-14);
  line-height: 1.5;
  color: var(--muted);
  transition: border-color .2s ease, box-shadow .2s ease;
}

.page-faq .faq-finder-box:hover {
  border-color: var(--ice);
  box-shadow: 0 0 0 3px rgba(169, 214, 240, .3);
}

.page-faq .faq-glass {
  flex: none;
  display: inline-flex;
  color: var(--ice);
}

.page-faq .faq-index {
  margin-top: 26px;
}

.page-faq .faq-index-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--muted);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-index-link {
  position: relative;
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 2px 10px;
  padding: 14px 10px 14px 12px;
  border-bottom: var(--edge);
  text-decoration: none;
  color: inherit;
}

.page-faq .faq-index-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: var(--ice);
  opacity: 0;
  transform: scaleY(.35);
  transform-origin: top;
  transition: opacity .22s ease, transform .22s ease;
}

.page-faq .faq-index-link:hover::before,
.page-faq .faq-index-link:focus-visible::before {
  opacity: 1;
  transform: scaleY(1);
}

.page-faq .faq-index-link:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: 2px;
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .1em;
  line-height: 1.6;
  color: var(--maple);
}

.page-faq .faq-index-name {
  font-size: var(--fs-16);
  font-weight: 700;
  line-height: 1.5;
  color: var(--void);
  transition: color .18s ease;
}

.page-faq .faq-index-sub {
  grid-column: 2;
  font-size: var(--fs-14);
  line-height: 1.5;
  color: var(--muted);
}

.page-faq .faq-index-link:hover .faq-index-name,
.page-faq .faq-index-link:focus-visible .faq-index-name {
  color: var(--ice);
}

.page-faq .faq-index-figure {
  margin: 26px 0 0;
  padding: 10px;
  background: #fff;
  border: var(--edge);
  box-shadow: var(--shadow-paper);
}

.page-faq .faq-index-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--mist);
}

/* 右栏：问答条目流 */
.page-faq .faq-stream {
  display: grid;
  gap: clamp(38px, 4.6vw, 62px);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: 96px;
  min-width: 0;
}

.page-faq .faq-group-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 6px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--void);
}

.page-faq .faq-group-num {
  flex: none;
  padding: 5px 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1;
  letter-spacing: .14em;
  color: var(--amber);
  background: var(--void);
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-size: clamp(19px, 2.2vw, 26px);
  font-weight: 800;
  letter-spacing: -.005em;
  color: var(--void);
}

.page-faq .faq-item {
  position: relative;
  padding-left: 20px;
  border-bottom: var(--edge);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: var(--ice);
  opacity: 0;
  transform: scaleY(.3);
  transform-origin: top;
  transition: opacity .24s ease, transform .24s ease;
}

.page-faq .faq-item[open]::before {
  opacity: 1;
  transform: scaleY(1);
}

.page-faq .faq-item summary {
  position: relative;
  display: block;
  padding: 18px 40px 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: var(--fs-16);
  font-weight: 700;
  line-height: 1.6;
  color: var(--void);
  transition: color .18s ease;
}

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

.page-faq .faq-item summary::marker {
  content: "";
}

.page-faq .faq-item summary::after {
  content: "";
  position: absolute;
  right: 12px;
  top: 50%;
  width: 9px;
  height: 9px;
  margin-top: -6px;
  border-right: 2px solid var(--maple);
  border-bottom: 2px solid var(--maple);
  transform: rotate(45deg);
  transition: transform .22s ease, border-color .22s ease, margin-top .22s ease;
}

.page-faq .faq-item[open] summary::after {
  border-color: var(--ice);
  transform: rotate(-135deg);
  margin-top: -3px;
}

.page-faq .faq-item summary:hover {
  color: var(--maple);
}

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

.page-faq .faq-answer {
  padding: 0 40px 20px 0;
}

.page-faq .faq-answer p {
  margin: 0;
  max-width: 68ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--graphite);
}

.page-faq .faq-answer a {
  color: var(--ice);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-answer a:hover {
  color: var(--maple);
}

/* ---------- 收束区：求助路径 ---------- */
.page-faq .faq-contact {
  padding: clamp(48px, 6.6vw, 92px) 0;
  color: var(--paper);
  background:
    radial-gradient(680px 340px at 12% 0%, rgba(31, 111, 168, .34), transparent 66%),
    linear-gradient(150deg, #0B0F14 0%, #131C27 52%, #0B0F14 100%);
}

.page-faq .faq-contact-grid {
  display: grid;
  gap: clamp(30px, 4.2vw, 58px);
  align-items: start;
}

@media (min-width: 900px) {
  .page-faq .faq-contact-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

.page-faq .faq-contact h2 {
  color: #fff;
}

.page-faq .faq-contact .index-num {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-faq .faq-contact-copy p {
  margin: 18px 0 0;
  max-width: 52ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: rgba(247, 245, 241, .76);
}

.page-faq .faq-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-contact .btn--ghost {
  border-color: rgba(185, 194, 204, .45);
  color: var(--paper);
}

.page-faq .faq-contact .btn--ghost:hover {
  border-color: var(--ice-light);
  color: var(--ice-light);
}

.page-faq .faq-contact-cards {
  display: grid;
  gap: 14px;
}

@media (min-width: 620px) {
  .page-faq .faq-contact-cards {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  }
}

.page-faq .faq-contact-card {
  padding: 20px 18px 22px;
  border: 1px solid rgba(185, 194, 204, .22);
  border-top: 2px solid var(--amber);
  background: rgba(247, 245, 241, .05);
}

.page-faq .faq-card-num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .18em;
  color: var(--amber);
}

.page-faq .faq-contact-card h3 {
  margin: 0 0 9px;
  font-size: var(--fs-16);
  font-weight: 700;
  color: #fff;
}

.page-faq .faq-contact-card p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.76;
  color: rgba(247, 245, 241, .72);
}

/* ---------- 窄屏收口 ---------- */
@media (max-width: 560px) {
  .page-faq .faq-hero h1 {
    font-size: clamp(30px, 9vw, 42px);
  }

  .page-faq .faq-flow-node {
    padding: 12px 14px;
  }

  .page-faq .faq-tabs .tab {
    font-size: var(--fs-14);
    padding: 11px 2px;
  }

  .page-faq .faq-item {
    padding-left: 14px;
  }

  .page-faq .faq-item summary {
    padding-right: 34px;
  }

  .page-faq .faq-answer {
    padding-right: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }
}
<<<END>>>