/* ===== 页面：帮助中心（.page-faq）专属样式 ===== */
.page-faq {
  --faq-accent: #00FF88;
  --faq-pop: #FF7A00;
  --faq-night: #0A1F44;
  --faq-night-deep: #061026;
  --faq-cloud: #F4F7FA;
  --faq-steel: #1E3A5F;
  --faq-line: rgba(10, 31, 68, 0.14);
  --faq-line-light: rgba(244, 247, 250, 0.16);
  --faq-soft: rgba(0, 255, 136, 0.06);
  --faq-radius: 10px;
  background: #FFFFFF;
}

/* ===== 帮助中心首屏 ===== */
.page-faq .faq-hero {
  background:
    radial-gradient(circle at 86% 12%, rgba(0, 255, 136, 0.2), transparent 34%),
    linear-gradient(135deg, var(--faq-night) 0%, var(--faq-night-deep) 100%);
  color: var(--faq-cloud);
  padding-top: 24px;
  margin-bottom: 56px;
}

.page-faq .faq-hero::after {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--faq-accent) 0%, var(--faq-pop) 100%);
  margin-top: 28px;
}

.page-faq .faq-hero__inner {
  padding-top: 6px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 24px;
  margin-bottom: 30px;
}

.page-faq .faq-hero__title .section-kicker {
  margin-bottom: 8px;
  color: var(--faq-accent);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: #FFFFFF;
  margin: 0 0 16px;
  max-width: 11em;
}

.page-faq .faq-hero__lead {
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(244, 247, 250, 0.82);
  max-width: 42em;
  margin: 0;
}

.page-faq .faq-hero__aside {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--faq-line-light);
  border-radius: var(--faq-radius);
  padding: 20px;
  align-self: end;
}

.page-faq .faq-hero__aside-note {
  margin: 0 0 4px;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(244, 247, 250, 0.58);
}

.page-faq .faq-hero__aside-mail,
.page-faq .faq-hero__aside-phone {
  margin: 0 0 14px;
  font-size: 1.06rem;
  font-weight: 700;
  color: #FFFFFF;
  word-break: break-all;
}

.page-faq .faq-hero__aside-response {
  margin: 0 0 18px;
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(244, 247, 250, 0.7);
}

.page-faq .faq-hero__aside .btn {
  margin-top: 2px;
}

/* ===== 首屏分类标签导航 ===== */
.page-faq .faq-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 22px;
  border-top: 1px solid var(--faq-line-light);
}

.page-faq .faq-tabs__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--faq-line-light);
  border-radius: var(--faq-radius);
  color: rgba(244, 247, 250, 0.92);
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  transition: border-color 0.25s ease, color 0.25s ease, background 0.25s ease;
}

.page-faq .faq-tabs__link:hover,
.page-faq .faq-tabs__link:focus-visible {
  border-color: var(--faq-accent);
  color: var(--faq-accent);
  background: rgba(0, 255, 136, 0.08);
}

.page-faq .faq-tabs__index {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--faq-accent);
}

/* ===== 正文双栏布局 ===== */
.page-faq .faq-layout {
  display: grid;
  gap: 36px;
  padding-bottom: 80px;
}

/* ===== 侧边栏 ===== */
.page-faq .faq-aside {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-faq .faq-aside__card {
  background: #FFFFFF;
  border: 1px solid var(--faq-line);
  border-radius: 12px;
  padding: 18px;
  box-shadow: 0 8px 28px rgba(10, 31, 68, 0.07);
}

.page-faq .faq-aside__card img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 16px;
}

.page-faq .faq-aside__nav {
  display: grid;
  gap: 2px;
}

.page-faq .faq-aside__nav a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 8px;
  border-bottom: 1px dashed var(--faq-line);
  text-decoration: none;
  color: var(--color-graphite);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.25s ease, padding-left 0.25s ease;
}

.page-faq .faq-aside__nav a:last-child {
  border-bottom: 0;
}

.page-faq .faq-aside__nav a:hover,
.page-faq .faq-aside__nav a:focus-visible {
  color: var(--faq-night);
  padding-left: 12px;
}

.page-faq .faq-aside__nav a span {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--faq-accent);
}

.page-faq .faq-aside__card--note {
  background: var(--faq-soft);
  border-color: rgba(0, 255, 136, 0.22);
}

.page-faq .faq-aside__note-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--faq-night);
  margin: 0 0 8px;
}

.page-faq .faq-aside__card--note p {
  margin: 0 0 8px;
  line-height: 1.6;
  font-size: 0.95rem;
  color: var(--color-graphite);
}

.page-faq .faq-aside__card--note a {
  color: var(--faq-night);
  font-weight: 600;
  text-decoration-color: var(--faq-accent);
  text-underline-offset: 4px;
}

/* ===== 问答主体 ===== */
.page-faq .faq-main {
  display: grid;
  gap: 68px;
}

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

.page-faq .faq-section::before {
  content: attr(data-label);
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  line-height: 1;
  letter-spacing: -0.04em;
  color: rgba(10, 31, 68, 0.1);
  margin-bottom: 10px;
  pointer-events: none;
}

.page-faq .faq-section--hot::before {
  color: rgba(0, 255, 136, 0.26);
}

.page-faq .faq-section__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  border-bottom: 2px solid var(--faq-night);
  padding-bottom: 14px;
  margin-bottom: 22px;
}

.page-faq .faq-section__head .section-kicker {
  margin-bottom: 8px;
  color: var(--faq-night);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.page-faq .faq-section--hot .faq-section__head .section-kicker {
  color: var(--faq-night);
}

.page-faq .faq-section__head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  line-height: 1.2;
  color: var(--faq-night);
  margin: 0;
}

/* ===== 手风琴列表 ===== */
.page-faq .faq-items {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  background: #FFFFFF;
  border: 1px solid var(--faq-line);
  border-radius: var(--faq-radius);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-faq .faq-item[open] {
  border-color: rgba(10, 31, 68, 0.32);
  box-shadow: 0 10px 30px rgba(10, 31, 68, 0.08);
}

.page-faq .faq-section--hot .faq-item {
  border-color: rgba(0, 255, 136, 0.32);
}

.page-faq .faq-section--hot .faq-item[open] {
  border-color: var(--faq-accent);
  box-shadow: 0 10px 30px rgba(0, 255, 136, 0.1);
}

.page-faq .faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 18px;
  cursor: pointer;
}

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

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

.page-faq .faq-section--hot .faq-item summary {
  background: var(--faq-soft);
}

.page-faq .faq-item__index {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  color: rgba(10, 31, 68, 0.36);
  min-width: 26px;
}

.page-faq .faq-section--hot .faq-item__index {
  color: var(--faq-accent);
}

.page-faq .faq-item__q {
  flex: 1;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.45;
  color: var(--color-graphite);
}

.page-faq .faq-item__plus {
  position: relative;
  width: 16px;
  height: 16px;
  flex: 0 0 16px;
  color: var(--faq-night);
}

.page-faq .faq-section--hot .faq-item__plus {
  color: var(--faq-accent);
}

.page-faq .faq-item__plus::before,
.page-faq .faq-item__plus::after {
  content: "";
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  background: currentColor;
  border-radius: 3px;
}

.page-faq .faq-item__plus::before {
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__plus::after {
  width: 2px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-item__plus::after {
  display: none;
}

.page-faq .faq-item__body {
  margin: 4px 18px 18px;
  padding: 14px 0 0;
  border-top: 1px dashed var(--faq-line);
  font-size: 0.97rem;
  line-height: 1.75;
  color: var(--color-graphite);
}

.page-faq .faq-item__body p {
  margin: 0;
}

/* ===== 底部联系卡片 ===== */
.page-faq .faq-contact {
  background:
    radial-gradient(circle at 10% 30%, rgba(0, 255, 136, 0.16), transparent 28%),
    linear-gradient(135deg, var(--faq-night) 0%, var(--faq-night-deep) 100%);
  color: var(--faq-cloud);
  border-radius: 14px;
  padding: 28px;
  display: grid;
  gap: 24px;
  scroll-margin-top: 24px;
}

.page-faq .faq-contact .section-kicker {
  color: var(--faq-accent);
  margin-bottom: 6px;
}

.page-faq .faq-contact h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  color: #FFFFFF;
  margin: 0 0 12px;
}

.page-faq .faq-contact__desc {
  font-size: 0.98rem;
  line-height: 1.7;
  margin: 0 0 22px;
  color: rgba(244, 247, 250, 0.8);
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 4px;
  margin-bottom: 16px;
}

.page-faq .faq-contact__label {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(244, 247, 250, 0.56);
}

.page-faq .faq-contact__value {
  font-size: 1.1rem;
  font-weight: 700;
  color: #FFFFFF;
  word-break: break-all;
}

.page-faq .faq-contact .btn {
  margin-top: 8px;
  text-decoration: none;
}

.page-faq .faq-contact__media {
  margin: 0;
  align-self: center;
}

.page-faq .faq-contact__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 12px;
}

/* ===== 桌面端增强 ===== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding-top: 32px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: 1.55fr 0.75fr;
    gap: 48px;
    align-items: end;
  }

  .page-faq .faq-hero__lead {
    font-size: 1.1rem;
  }

  .page-faq .faq-contact {
    grid-template-columns: 1.25fr 0.75fr;
    align-items: center;
    padding: 40px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 32px;
  }

  .page-faq .faq-main {
    gap: 72px;
  }

  .page-faq .faq-hero {
    padding-top: 40px;
  }

  .page-faq .faq-hero__inner {
    padding-top: 8px;
  }

  .page-faq .faq-item__q {
    font-size: 1.04rem;
  }
}