/* ==========================================================
   季票答疑页  /answers/   —— 作用域 .page-faq
   ========================================================== */

.page-faq {
  --faq-hairline: rgba(152, 166, 160, .16);
  --faq-hairline-strong: rgba(79, 224, 200, .26);
  --faq-gap-lg: clamp(1.75rem, 4.5vw, 3rem);
  --faq-gap-md: clamp(1.1rem, 2.5vw, 1.6rem);

  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.75;
}

.page-faq a {
  color: inherit;
}

.page-faq a:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
  border-radius: var(--radius-s);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: calc(var(--header-h) + 2rem) 0 clamp(2rem, 5vw, 3.5rem);
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 86% 0%, rgba(79, 224, 200, .12), transparent 55%),
    radial-gradient(105% 85% at 0% 100%, rgba(36, 74, 61, .62), transparent 62%),
    var(--c-abyss);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(152, 166, 160, .07) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(0deg, rgba(152, 166, 160, .07) 0 1px, transparent 1px 88px);
}

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

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--text-dim);
}

.page-faq .faq-hero__window {
  position: relative;
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
  padding: clamp(1.5rem, 4vw, 2.5rem) clamp(1.25rem, 3.5vw, 2.5rem) clamp(2.25rem, 5vw, 3rem);
  border: 1px solid var(--faq-hairline-strong);
  border-radius: var(--radius-organic);
  background: linear-gradient(155deg, rgba(20, 23, 25, .94) 0%, rgba(10, 31, 26, .76) 100%);
  box-shadow: var(--shadow);
}

.page-faq .faq-hero__window::after {
  content: "";
  position: absolute;
  left: clamp(1.25rem, 3.5vw, 2.5rem);
  right: clamp(1.25rem, 3.5vw, 2.5rem);
  bottom: 14px;
  height: 6px;
  pointer-events: none;
  opacity: .65;
  background-image: repeating-linear-gradient(90deg, var(--c-shale) 0 1px, transparent 1px 13px);
}

.page-faq .faq-hero__main,
.page-faq .faq-hero__hot {
  min-width: 0;
}

.page-faq .faq-hero__title {
  margin: .7rem 0 0;
  font-size: clamp(1.75rem, 5.6vw, 3.25rem);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: .01em;
  color: var(--c-paper);
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  margin: 1.1rem 0 0;
  max-width: 46ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-faq .faq-hero__hot {
  border-top: 1px solid var(--faq-hairline-strong);
  padding-top: 1.1rem;
}

.page-faq .faq-hero__hot-label {
  margin: 0 0 .7rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--c-cyan);
}

.page-faq .faq-hero__hot-list {
  display: grid;
  gap: .25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__hot-link {
  display: flex;
  align-items: baseline;
  gap: .65rem;
  padding: .5rem 0;
  font-size: .9375rem;
  line-height: 1.6;
  color: var(--text-soft);
  text-decoration: none;
  border-bottom: 1px dashed rgba(152, 166, 160, .2);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-hero__hot-link:hover,
.page-faq .faq-hero__hot-link:focus-visible {
  color: var(--c-cyan);
  border-color: rgba(79, 224, 200, .45);
}

.page-faq .faq-hero__hot-idx {
  flex: none;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--c-amber);
  letter-spacing: .06em;
}

/* ---------- 正文骨架 ---------- */

.page-faq .faq-body {
  padding-top: clamp(2rem, 5vw, 4rem);
  padding-bottom: clamp(2.5rem, 7vw, 5.5rem);
  background: linear-gradient(180deg, var(--c-abyss) 0%, var(--c-coal) 45%, var(--c-abyss) 100%);
}

.page-faq .faq-main {
  min-width: 0;
}

/* ---------- 左侧分类索引 ---------- */

.page-faq .index-rail__label {
  font-family: var(--font-mono);
  letter-spacing: .12em;
  color: var(--c-cyan);
}

.page-faq .index-rail__link {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  transition: color .2s var(--ease);
}

.page-faq .index-rail__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--c-amber);
  letter-spacing: .06em;
}

.page-faq .index-rail__link:hover {
  color: var(--c-cyan);
}

.page-faq .index-rail__link[aria-current="true"] {
  color: var(--c-cyan);
}

/* ---------- 章节 ---------- */

.page-faq .faq-chapter {
  margin-top: var(--faq-gap-lg);
  padding-top: var(--faq-gap-lg);
  border-top: 1px solid var(--faq-hairline);
  scroll-margin-top: calc(var(--header-h) + 1.75rem);
}

.page-faq .faq-chapter:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-chapter .chapter__num {
  color: var(--c-cyan);
  font-family: var(--font-mono);
}

.page-faq .faq-chapter .chapter__title {
  color: var(--c-paper);
}

.page-faq .faq-chapter .chapter__desc {
  color: var(--text-dim);
  max-width: 56ch;
}

/* ---------- 手风琴 ---------- */

.page-faq .faq-acc {
  margin-top: var(--faq-gap-md);
  border-top: 1px solid var(--faq-hairline);
}

.page-faq .faq-acc .accordion__item {
  border-bottom: 1px solid var(--faq-hairline);
}

.page-faq .faq-acc .accordion__trigger {
  display: flex;
  align-items: flex-start;
  gap: .85rem;
  width: 100%;
  padding: 1.05rem 0;
  border: 0;
  background: none;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.65;
  text-align: left;
  color: var(--c-paper);
  cursor: pointer;
  transition: color .2s var(--ease);
}

.page-faq .faq-acc .accordion__trigger:hover,
.page-faq .faq-acc .accordion__trigger:focus-visible {
  color: var(--c-cyan);
}

.page-faq .faq-acc .accordion__panel {
  padding-bottom: 1.2rem;
}

.page-faq .faq-acc .accordion__panel p {
  margin: 0;
  max-width: 68ch;
  font-size: .9375rem;
  line-height: 1.9;
  color: var(--text-soft);
}

.page-faq .faq-acc .accordion__panel a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-acc .accordion__panel a:hover {
  color: var(--c-amber);
}

.page-faq .faq-q {
  flex: none;
  padding-top: .18rem;
  font-family: var(--font-mono);
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--c-amber);
}

/* ---------- 配图 ---------- */

.page-faq .faq-figure {
  margin: var(--faq-gap-md) 0 0;
  overflow: hidden;
  border: 1px solid var(--faq-hairline);
  border-radius: var(--radius-m);
  background: var(--c-coal);
}

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

.page-faq .faq-figure .media__caption {
  padding: .85rem 1rem;
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  line-height: 1.6;
  color: var(--text-dim);
  border-top: 1px solid var(--faq-hairline);
}

/* ---------- 结尾引导 ---------- */

.page-faq .faq-cta {
  margin-top: clamp(2rem, 5vw, 3.5rem);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  display: grid;
  gap: .9rem;
  border: 1px solid var(--faq-hairline-strong);
  border-radius: var(--radius-organic);
  background:
    linear-gradient(140deg, rgba(36, 74, 61, .92) 0%, rgba(10, 31, 26, .96) 72%);
}

.page-faq .faq-cta__title {
  margin: 0;
  font-size: clamp(1.25rem, 3vw, 1.625rem);
  line-height: 1.35;
  font-weight: 700;
  color: var(--c-paper);
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 60ch;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: .35rem;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-hero__hot-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 1.75rem;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__window {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-hero__hot {
    border-top: 0;
    border-left: 1px solid var(--faq-hairline-strong);
    padding-top: 0;
    padding-left: clamp(1.25rem, 3vw, 2rem);
  }

  .page-faq .faq-hero__hot-list {
    grid-template-columns: minmax(0, 1fr);
    row-gap: .25rem;
  }
}

@media (min-width: 1024px) {
  .page-faq .rail__aside {
    position: sticky;
    top: calc(var(--header-h) + 2rem);
    align-self: start;
  }

  .page-faq .faq-chapter .chapter__body {
    max-width: 72ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__hot-link,
  .page-faq .index-rail__link,
  .page-faq .faq-acc .accordion__trigger {
    transition: none;
  }
}