/* ========== 帮助中心页面作用域 ========== */
.page-faq {
  --faq-gold: #D4AF37;
  --faq-orange: #FF6B35;
  --faq-green: #22C55E;
  --faq-slate: #9CA3AF;
  --faq-gold-bg: rgba(212, 175, 55, 0.14);
  --faq-orange-bg: rgba(255, 107, 53, 0.14);
  --faq-green-bg: rgba(34, 197, 94, 0.14);
  --faq-slate-bg: rgba(156, 163, 175, 0.14);
  --faq-panel-bg: rgba(17, 24, 39, 0.7);
  --faq-panel-line: rgba(243, 244, 246, 0.08);
}

/* ========== 首屏框景 Hero ========== */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(36px, 6vw, 80px) 0 clamp(24px, 4vw, 48px);
  background:
    radial-gradient(ellipse at 70% 20%, rgba(255, 107, 53, 0.10), transparent 40%),
    radial-gradient(ellipse at 12% 80%, rgba(212, 175, 55, 0.08), transparent 46%),
    linear-gradient(180deg, var(--clr-navy), var(--clr-ink));
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--faq-gold), var(--faq-orange) 70%, transparent);
  opacity: 0.7;
  z-index: 2;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  bottom: 24px;
  right: -60px;
  width: 160px;
  height: 160px;
  border: 1px solid rgba(212, 175, 55, 0.18);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-faq .faq-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.page-faq .faq-hero-copy {
  max-width: 680px;
  padding-left: 18px;
  border-left: 3px solid rgba(212, 175, 55, 0.55);
}

.page-faq .faq-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--faq-gold);
  text-transform: uppercase;
}

.page-faq .faq-hero-tag::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--faq-gold);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 5vw, 3.4rem);
  line-height: 1.15;
  color: var(--clr-light);
}

.page-faq .faq-hero-lead {
  margin: 0 0 24px;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--clr-gray);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero-figure {
  position: relative;
  margin: 0;
}

.page-faq .faq-hero-figure::before {
  content: "";
  position: absolute;
  inset: -10px 12px 12px -10px;
  border: 1px solid rgba(212, 175, 55, 0.22);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  pointer-events: none;
}

.page-faq .faq-hero-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}

/* ========== 控制台式问答区 ========== */
.page-faq .faq-console {
  position: relative;
  padding: clamp(28px, 5vw, 64px) 0;
  background: linear-gradient(180deg, var(--clr-ink) 0%, var(--clr-navy) 100%);
}

.page-faq .faq-console::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.35), transparent);
}

.page-faq .faq-console-layout {
  display: grid;
  gap: 28px;
}

/* ----- 左侧索引 ----- */
.page-faq .faq-index {
  position: relative;
  padding: 20px;
  background: var(--faq-panel-bg);
  border: 1px solid var(--faq-panel-line);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-faq .faq-index-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 14px;
}

.page-faq .faq-index-no {
  padding: 2px 8px;
  border: 1px solid rgba(212, 175, 55, 0.4);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--faq-gold);
}

.page-faq .faq-index-head h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--clr-light);
}

.page-faq .faq-index-head p {
  margin: 0 0 0 auto;
  font-size: 0.76rem;
  color: var(--clr-gray);
}

.page-faq .faq-index-nav {
  display: flex;
  flex-wrap: nowrap;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-faq .faq-index-link {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  min-width: 148px;
  padding: 11px 14px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--clr-light);
  text-decoration: none;
  border-left-width: 4px;
  border-left-style: solid;
  background: rgba(255, 255, 255, 0.02);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  transform: translateY(-2px);
  color: #ffffff;
  outline: none;
}

.page-faq .faq-idx-gold {
  border-left-color: var(--faq-gold);
  background: var(--faq-gold-bg);
}

.page-faq .faq-idx-orange {
  border-left-color: var(--faq-orange);
  background: var(--faq-orange-bg);
}

.page-faq .faq-idx-green {
  border-left-color: var(--faq-green);
  background: var(--faq-green-bg);
}

.page-faq .faq-idx-slate {
  border-left-color: var(--faq-slate);
  background: var(--faq-slate-bg);
}

.page-faq .faq-idx-num {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  opacity: 0.7;
}

.page-faq .faq-idx-name {
  flex: 1 1 auto;
}

.page-faq .faq-idx-count {
  padding: 1px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.72rem;
  color: var(--clr-gray);
}

.page-faq .faq-index-callout {
  margin-top: 16px;
  padding: 16px;
  border: 1px dashed rgba(212, 175, 55, 0.32);
  background: rgba(212, 175, 55, 0.04);
}

.page-faq .faq-callout-title {
  margin: 0 0 6px;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--faq-gold);
}

.page-faq .faq-index-callout p {
  margin: 0 0 12px;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--clr-gray);
}

.page-faq .faq-index-callout .btn {
  width: 100%;
  justify-content: center;
}

/* ----- 右侧面板 ----- */
.page-faq .faq-panels {
  display: grid;
  gap: 32px;
}

.page-faq .faq-panel {
  position: relative;
  padding: clamp(18px, 3vw, 32px);
  background: var(--faq-panel-bg);
  border-left: 4px solid var(--faq-panel-color, var(--clr-gray));
  border-top: 1px solid var(--faq-panel-line);
}

.page-faq .faq-panel::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--faq-panel-color), transparent 75%);
}

.page-faq #fee-questions {
  --faq-panel-color: var(--faq-gold);
}

.page-faq #mobile-questions {
  --faq-panel-color: var(--faq-orange);
}

.page-faq #data-questions {
  --faq-panel-color: var(--faq-green);
}

.page-faq #account-questions {
  --faq-panel-color: var(--faq-slate);
}

.page-faq .faq-panel-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--faq-panel-line);
}

.page-faq .faq-panel-badge {
  flex: 0 0 auto;
  padding: 8px 10px;
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1;
  clip-path: polygon(0 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}

.page-faq .faq-badge-gold {
  color: var(--faq-gold);
  background: var(--faq-gold-bg);
}

.page-faq .faq-badge-orange {
  color: var(--faq-orange);
  background: var(--faq-orange-bg);
}

.page-faq .faq-badge-green {
  color: var(--faq-green);
  background: var(--faq-green-bg);
}

.page-faq .faq-badge-slate {
  color: var(--faq-slate);
  background: var(--faq-slate-bg);
}

.page-faq .faq-panel-head h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
  color: var(--clr-light);
}

.page-faq .faq-panel-head p {
  margin: 4px 0 0;
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--clr-gray);
}

/* ----- 手风琴折叠列表 ----- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  background: rgba(11, 27, 43, 0.55);
  border: 1px solid var(--faq-panel-line);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(212, 175, 55, 0.28);
  background: rgba(11, 27, 43, 0.85);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  list-style: none;
  font-family: var(--font-body);
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--clr-light);
  cursor: pointer;
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item summary::-moz-list-bullet {
  list-style: none;
}

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

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

.page-faq .faq-item summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-body);
  font-size: 1.4rem;
  font-weight: 400;
  line-height: 1;
  color: var(--faq-gold);
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-item[open] summary::after {
  content: "\2212";
  transform: rotate(180deg);
}

.page-faq .faq-answer {
  padding: 4px 18px 18px;
}

.page-faq .faq-answer p {
  margin: 10px 0 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--clr-gray);
}

.page-faq .faq-answer p:first-child {
  margin-top: 0;
}

/* ========== 移动端使用图解 ========== */
.page-faq .faq-mobile-note {
  position: relative;
  padding: clamp(32px, 5vw, 64px) 0;
  background: linear-gradient(180deg, var(--clr-ink), var(--clr-charcoal));
  overflow: hidden;
}

.page-faq .faq-mobile-note::before {
  content: "";
  position: absolute;
  left: -60px;
  top: 30%;
  width: 180px;
  height: 180px;
  border: 1px solid rgba(255, 107, 53, 0.20);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-faq .faq-mobile-note-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-faq .faq-mobile-figure {
  position: relative;
  margin: 0;
  max-width: 560px;
}

.page-faq .faq-mobile-figure::before {
  content: "";
  position: absolute;
  inset: -8px 10px 10px -8px;
  border: 1px solid rgba(255, 107, 53, 0.26);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  pointer-events: none;
}

.page-faq .faq-mobile-figure img {
  display: block;
  width: 100%;
  height: auto;
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}

.page-faq .faq-mobile-copy h2 {
  margin: 10px 0 14px;
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.2;
  color: var(--clr-light);
}

.page-faq .faq-mobile-lead {
  margin: 0 0 22px;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--clr-gray);
}

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

.page-faq .faq-mobile-steps li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.page-faq .faq-step-num {
  flex: 0 0 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--faq-orange);
  border: 1px solid rgba(255, 107, 53, 0.45);
  clip-path: polygon(0 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}

.page-faq .faq-mobile-steps li > div {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--clr-gray);
}

.page-faq .faq-mobile-steps strong {
  font-size: 0.95rem;
  color: var(--clr-light);
}

.page-faq .faq-mobile-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ========== 底部支持区 ========== */
.page-faq .faq-support {
  padding: clamp(28px, 5vw, 56px) 0;
  background: var(--clr-ink);
}

.page-faq .faq-support-inner {
  position: relative;
}

.page-faq .faq-support-card {
  position: relative;
  padding: clamp(28px, 4vw, 48px);
  border-top: 2px solid var(--faq-gold);
  border-bottom: 1px solid rgba(212, 175, 55, 0.20);
  background:
    linear-gradient(135deg, rgba(212, 175, 55, 0.06), rgba(255, 107, 53, 0.04)),
    rgba(17, 24, 39, 0.8);
  overflow: hidden;
}

.page-faq .faq-support-mark {
  position: absolute;
  top: 10px;
  right: 20px;
  font-family: var(--font-heading);
  font-size: 7rem;
  line-height: 1;
  color: rgba(212, 175, 55, 0.06);
  user-select: none;
  pointer-events: none;
}

.page-faq .faq-support-card h2 {
  position: relative;
  z-index: 1;
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  color: var(--clr-light);
}

.page-faq .faq-support-card > p {
  position: relative;
  z-index: 1;
  max-width: 64ch;
  margin: 0 0 20px;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--clr-gray);
}

.page-faq .faq-support-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ========== 中屏增强 ========== */
@media (min-width: 700px) {
  .page-faq .faq-index-nav {
    flex-wrap: wrap;
    overflow: visible;
  }

  .page-faq .faq-index-link {
    flex: 1 1 auto;
    min-width: 160px;
  }

  .page-faq .faq-hero-actions,
  .page-faq .faq-mobile-actions,
  .page-faq .faq-support-actions {
    align-items: center;
  }
}

/* ========== 桌面端侧边导览 ========== */
@media (min-width: 1024px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: center;
  }

  .page-faq .faq-hero-copy {
    max-width: 560px;
  }

  .page-faq .faq-console-layout {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: clamp(24px, 3vw, 40px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 24px;
    padding: 24px;
  }

  .page-faq .faq-index-nav {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .page-faq .faq-index-link {
    min-width: 0;
  }

  .page-faq .faq-mobile-note-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-faq .faq-mobile-figure {
    max-width: 600px;
  }
}