/* ===== 页面专属：帮助与问答 ===== */
.page-faq {
  --faq-radius-lg: 24px;
  --faq-radius-md: 16px;
  --faq-grid: 32px;
  --faq-num-font: var(--font-num);
  --faq-shadow-green: 0 12px 30px rgba(0, 200, 83, 0.1);
  --faq-shadow-purple: 0 6px 18px rgba(101, 31, 255, 0.24);

  background-color: var(--cool-gray);
  background-image:
    linear-gradient(to right, rgba(0, 200, 83, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 200, 83, 0.05) 1px, transparent 1px);
  background-size: var(--faq-grid) var(--faq-grid);
  overflow-x: hidden;
  scroll-behavior: smooth;
}

/* Hero */
.page-faq__hero {
  position: relative;
  margin-top: calc(-1 * var(--header-height));
  padding: calc(var(--header-height) + 2.5rem) 0 3rem;
  background: linear-gradient(135deg, var(--kiwi-green) 0%, var(--kiwi-green-dark) 42%, var(--ink-blue) 100%);
  color: var(--soft-white);
  overflow: hidden;
  border-radius: 0 0 32px 32px;
}

.page-faq__hero::before {
  content: "";
  position: absolute;
  top: -150px;
  right: -150px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 0 0 44px rgba(255, 255, 255, 0.03);
}

.page-faq__hero::after {
  content: "";
  position: absolute;
  left: 58%;
  bottom: -230px;
  width: 560px;
  height: 560px;
  border: 64px solid rgba(255, 234, 0, 0.09);
  border-radius: 50%;
}

.page-faq__hero .container {
  position: relative;
  z-index: 2;
}

.page-faq__hero .breadcrumbs {
  padding-top: 0;
}

.page-faq__hero .breadcrumbs__link {
  color: rgba(255, 255, 255, 0.7);
}

.page-faq__hero .breadcrumbs__item--current {
  color: rgba(255, 255, 255, 0.95);
}

.page-faq__hero .breadcrumbs__item + .breadcrumbs__item::before {
  color: rgba(255, 255, 255, 0.45);
}

.page-faq__hero-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2.25rem;
}

.page-faq__hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 6px 14px;
  background: var(--volt-yellow);
  color: var(--ink-blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.page-faq__hero-title {
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -0.02em;
  max-width: 780px;
  margin: 0;
}

.page-faq__hero-lede {
  margin-top: 1rem;
  max-width: 620px;
  font-size: 1.02rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.85);
}

.page-faq__hero-stats {
  display: flex;
  gap: 1rem;
}

.page-faq__hero-stat {
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(4px);
}

.page-faq__hero-stat-num {
  display: block;
  font-family: var(--font-num);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--volt-yellow);
  line-height: 1;
}

.page-faq__hero-stat-label {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.8);
}

.page-faq__hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2rem;
}

/* 双列布局 */
.page-faq__layout {
  display: block;
  padding: 1.75rem 0 3rem;
  align-items: flex-start;
}

.page-faq__side {
  margin-bottom: 1.25rem;
}

.page-faq__side-inner {
  background: linear-gradient(160deg, var(--ink-blue) 0%, #101a2c 100%);
  border-radius: var(--faq-radius-lg);
  padding: 1.75rem 1.5rem;
  color: var(--soft-white);
  box-shadow: var(--shadow-2);
}

.page-faq__side-kicker {
  display: inline-block;
  font-family: var(--faq-num-font);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--volt-yellow);
  margin-bottom: 1.25rem;
  border-bottom: 2px solid var(--volt-yellow);
  padding-bottom: 6px;
}

.page-faq__side-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 1.75rem;
}

.page-faq__side-link {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.75rem 0.85rem;
  border-radius: var(--radius-sm);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.92rem;
  text-decoration: none;
  transition: background 0.3s, transform 0.3s;
}

.page-faq__side-link span {
  font-family: var(--faq-num-font);
  font-size: 0.75rem;
  color: var(--kiwi-green-light);
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(0, 200, 83, 0.12);
  flex-shrink: 0;
}

.page-faq__side-link:hover {
  background: var(--kiwi-green);
  color: var(--ink-blue);
}

.page-faq__side-link:hover span {
  background: var(--soft-white);
  color: var(--kiwi-green-dark);
}

.page-faq__side-note {
  border-top: 1px dashed rgba(255, 255, 255, 0.16);
  padding-top: 1.25rem;
}

.page-faq__side-note-title {
  font-weight: 800;
  margin: 0 0 0.4rem;
  font-size: 0.95rem;
}

.page-faq__side-note-text {
  font-size: 0.82rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.6);
  margin: 0 0 1rem;
}

.page-faq__side-note .btn--yellow {
  display: block;
  text-align: center;
}

/* 主内容区 */
.page-faq__banner {
  margin: 0 0 2.75rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-2);
  border: 1px solid rgba(255, 255, 255, 0.7);
  background: var(--soft-white);
}

.page-faq__banner img {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq__banner figcaption {
  padding: 0.85rem 1.25rem;
  font-size: 0.85rem;
  color: #6b7a93;
  background: var(--soft-white);
}

.page-faq__section {
  margin-bottom: 3rem;
}

.page-faq__section-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--line-gray);
}

.page-faq__section-num {
  font-family: var(--faq-num-font);
  font-size: 1rem;
  font-weight: 700;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--kiwi-green);
  color: var(--soft-white);
  box-shadow: 0 6px 18px rgba(0, 200, 83, 0.28);
  flex-shrink: 0;
}

#faq-team .page-faq__section-num,
#faq-feedback .page-faq__section-num {
  background: var(--deep-purple);
  box-shadow: var(--faq-shadow-purple);
}

#faq-favorite .page-faq__section-num {
  background: var(--volt-yellow);
  color: var(--ink-blue);
}

.page-faq__section-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin: 0;
  color: var(--ink-blue);
}

.page-faq__section-desc {
  margin: 0.2rem 0 0;
  font-size: 0.85rem;
  color: #6b7a93;
}

/* 手风琴条目 */
.page-faq__item {
  background: var(--soft-white);
  border: 1px solid var(--line-gray);
  border-radius: var(--faq-radius-md);
  margin-bottom: 1rem;
  box-shadow: 0 4px 16px rgba(26, 35, 51, 0.03);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.page-faq__item[open] {
  border-color: var(--kiwi-green);
  box-shadow: var(--faq-shadow-green);
}

.page-faq__item-summary {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.page-faq__item-summary:focus-visible {
  outline: 3px solid var(--volt-yellow);
  outline-offset: -3px;
  border-radius: var(--faq-radius-md);
}

.page-faq__item-index {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--faq-num-font);
  font-size: 0.78rem;
  font-weight: 700;
  background: var(--translucent-green);
  color: var(--kiwi-green-dark);
}

.page-faq__item-question {
  flex: 1;
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink-blue);
  line-height: 1.45;
}

.page-faq__item-toggle {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  position: relative;
  border-radius: 50%;
  border: 1px solid var(--line-gray);
  background: var(--soft-white);
  transition: border-color 0.3s, background 0.3s;
}

.page-faq__item-toggle::before,
.page-faq__item-toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 2px;
  background: var(--kiwi-green-dark);
  transform: translate(-50%, -50%);
}

.page-faq__item-toggle::after {
  width: 2px;
  height: 10px;
}

.page-faq__item[open] .page-faq__item-toggle {
  background: var(--mint-green);
  border-color: var(--kiwi-green);
}

.page-faq__item[open] .page-faq__item-toggle::after {
  display: none;
}

.page-faq__item-answer {
  padding: 0 1.25rem 1.5rem;
  color: #51617a;
  line-height: 1.75;
  font-size: 0.94rem;
  border-top: 1px dashed var(--line-gray);
  animation: pageFaqReveal 0.3s var(--ease);
}

@keyframes pageFaqReveal {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq__item-answer p {
  margin: 0.75rem 0 0;
}

.page-faq__item-answer a {
  color: var(--deep-purple);
  font-weight: 600;
}

.page-faq__item-answer a:hover {
  text-decoration: underline;
}

/* 答案内插图 */
.page-faq__answers-figure {
  margin: 1.25rem 0 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--cool-gray);
}

.page-faq__answers-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq__answers-figure figcaption {
  padding: 0.75rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-blue);
  background: var(--mint-green);
}

/* 反馈入口 */
.page-faq__feedback {
  position: relative;
  background: linear-gradient(130deg, var(--ink-blue) 0%, #2c3870 50%, var(--deep-purple) 100%);
  color: var(--soft-white);
  padding: 3.5rem 0 4rem;
  overflow: hidden;
}

.page-faq__feedback::before {
  content: "";
  position: absolute;
  top: -230px;
  left: -130px;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: rgba(0, 200, 83, 0.18);
  filter: blur(2px);
}

.page-faq__feedback::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--kiwi-green) 0%, var(--volt-yellow) 55%, var(--deep-purple) 100%);
}

.page-faq__feedback-grid {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.page-faq__feedback-eyebrow {
  display: inline-block;
  font-family: var(--faq-num-font);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--volt-yellow);
  background: rgba(255, 234, 0, 0.1);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.page-faq__feedback-title {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
  margin: 0 0 1rem;
}

.page-faq__feedback-text {
  max-width: 560px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
  margin: 0 0 1.5rem;
}

.page-faq__feedback .btn--ghost {
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--soft-white);
}

.page-faq__feedback .btn--ghost:hover {
  background: rgba(255, 255, 255, 0.95);
  color: var(--ink-blue);
}

.page-faq__feedback-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-faq__feedback-card {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: transform 0.3s, background 0.3s, border-color 0.3s;
}

.page-faq__feedback-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--volt-yellow);
}

.page-faq__feedback-card-num {
  font-family: var(--faq-num-font);
  font-size: 0.75rem;
  color: var(--volt-yellow);
  display: inline-block;
  margin-bottom: 0.75rem;
}

.page-faq__feedback-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
}

.page-faq__feedback-card-mail {
  font-family: var(--faq-num-font);
  font-size: 0.92rem;
  color: var(--mint-green);
  word-break: break-all;
  margin: 0;
}

.page-faq__feedback-card-note {
  margin: 0.5rem 0 0;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.55);
}

/* 桌面端增强 */
@media (min-width: 992px) {
  .page-faq__hero-grid {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    margin-top: 3.5rem;
  }

  .page-faq__hero-copy {
    flex: 0 0 66%;
  }

  .page-faq__hero-stats {
    display: flex;
    gap: 1.25rem;
  }

  .page-faq__layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 2.5rem;
    padding: 3rem 0 5rem;
  }

  .page-faq__side {
    position: sticky;
    top: calc(var(--header-height) + 1.5rem);
    margin-bottom: 0;
  }

  .page-faq__item-summary {
    padding: 1.35rem 1.5rem;
  }

  .page-faq__item-answer {
    padding: 0 1.75rem 1.75rem;
  }

  .page-faq__feedback-grid {
    flex-direction: row;
    justify-content: space-between;
    gap: 3rem;
    align-items: flex-end;
  }

  .page-faq__feedback-copy {
    flex: 0 0 40%;
  }

  .page-faq__feedback-cards {
    flex: 1;
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1280px) {
  .page-faq__layout {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 3rem;
  }

  .page-faq__hero-title {
    font-size: 4.5rem;
  }
}