/* ===== 知识中心 / page-faq ===== */
.page-faq {
  --faq-line: rgba(184, 194, 217, .14);
  --faq-surface: rgba(20, 28, 51, .62);
  --faq-accent: var(--neon);
  background: var(--ink-900);
  color: var(--mist);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(1.25rem, 3.5vw, 2.25rem) 0 clamp(2.25rem, 6vw, 4.25rem);
  background:
    radial-gradient(circle at 86% 4%, rgba(122, 92, 255, .28), transparent 54%),
    radial-gradient(circle at 6% 96%, rgba(34, 224, 214, .14), transparent 52%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 100%);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, transparent 0 44px, rgba(184, 194, 217, .05) 44px 45px);
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .8), transparent 72%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .8), transparent 72%);
}

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

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3.25rem);
  align-items: center;
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-faq .faq-hero h1 {
  margin: .7rem 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.85rem, 5.6vw, 3.4rem);
  line-height: 1.16;
  letter-spacing: .02em;
  color: var(--paper);
  text-shadow: 0 0 46px rgba(34, 224, 214, .2);
}

.page-faq .faq-hero__lead {
  margin: 1.15rem 0 0;
  max-width: 34em;
  font-size: clamp(.94rem, 1.6vw, 1.04rem);
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.65rem;
}

.page-faq .faq-hero__echo {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
}

.page-faq .faq-hero__echo svg {
  width: min(100%, 340px);
  height: auto;
  animation: faq-breathe 7.5s ease-in-out infinite;
}

@keyframes faq-breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.028); }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  }
}

/* ---------- 分组速览 ---------- */
.page-faq .faq-jump {
  padding: clamp(.9rem, 2.4vw, 1.4rem) 0;
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
  background: var(--ink-900);
}

.page-faq .faq-jump__list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .48rem .95rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--pill);
  font-size: .82rem;
  letter-spacing: .04em;
  color: var(--mist);
  text-decoration: none;
  transition: border-color .32s var(--ease), color .32s var(--ease), background-color .32s var(--ease);
}

.page-faq .faq-jump__num {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  border-color: var(--neon);
  color: var(--neon);
  background: var(--neon-dim);
}

/* ---------- 章节 ---------- */
.page-faq .faq-block {
  position: relative;
  padding: clamp(2.25rem, 5.5vw, 3.75rem) 0;
}

.page-faq .faq-block + .faq-block {
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-block .chapter-head {
  max-width: 46rem;
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 clamp(1.75rem, 4.5vw, 2.5rem);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-xl);
  overflow: hidden;
  background: var(--ink-800);
}

.page-faq .faq-figure .media__img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 320px;
  object-fit: cover;
}

.page-faq .faq-figure .media__caption {
  padding: .85rem 1.15rem 1rem;
  font-size: .82rem;
  line-height: 1.65;
  color: var(--mist);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-texture {
  margin: clamp(1.4rem, 3.5vw, 2rem) 0 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  opacity: .85;
}

.page-faq .faq-texture img {
  display: block;
  width: 100%;
  height: 190px;
  object-fit: cover;
}

/* ---------- 起步三步 ---------- */
.page-faq .steps {
  display: grid;
  gap: clamp(.9rem, 2.6vw, 1.35rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .step {
  position: relative;
  padding: 1.5rem 1.35rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-lg);
  background: linear-gradient(155deg, rgba(20, 28, 51, .9), rgba(5, 7, 14, .82));
  overflow: hidden;
  transition: border-color .32s var(--ease), transform .32s var(--ease);
}

.page-faq .step::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--neon), var(--violet));
}

.page-faq .step:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.page-faq .step__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .2em;
  color: var(--amber);
}

.page-faq .step__title {
  margin: .6rem 0 0;
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-faq .step__text {
  margin: .55rem 0 0;
  font-size: .9rem;
  line-height: 1.78;
  color: var(--mist);
}

@media (min-width: 800px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 问答分组 ---------- */
.page-faq .qa-group {
  --group-accent: var(--neon);
  display: grid;
  gap: .7rem;
  margin-top: clamp(1.4rem, 3.5vw, 2rem);
  padding-left: clamp(.8rem, 2.4vw, 1.2rem);
  border-left: 2px solid var(--group-accent);
}

.page-faq .qa-group--violet { --group-accent: var(--violet); }
.page-faq .qa-group--amber { --group-accent: var(--amber); }
.page-faq .qa-group--pulse { --group-accent: var(--pulse); }

.page-faq .qa {
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: var(--faq-surface);
  transition: border-color .32s var(--ease), background-color .32s var(--ease);
}

.page-faq .qa[open] {
  border-color: rgba(34, 224, 214, .38);
  background: linear-gradient(160deg, rgba(20, 28, 51, .95), rgba(12, 18, 32, .88));
}

.page-faq .qa__summary {
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: 1.05rem 1.15rem;
  cursor: pointer;
  list-style: none;
  border-radius: var(--r-md);
}

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

.page-faq .qa__summary:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

.page-faq .qa__tag {
  flex: none;
  padding: .18rem .55rem;
  border: 1px solid rgba(34, 224, 214, .3);
  border-radius: var(--pill);
  background: var(--neon-dim);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .06em;
  color: var(--neon);
  white-space: nowrap;
}

.page-faq .qa__q {
  flex: 1 1 auto;
  min-width: 0;
  font-size: clamp(.94rem, 1.7vw, 1rem);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-faq .qa__mark {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--neon);
  transform: translate(-50%, -50%);
  transition: transform .32s var(--ease), opacity .32s var(--ease);
}

.page-faq .qa__mark::before {
  width: 14px;
  height: 1.5px;
}

.page-faq .qa__mark::after {
  width: 1.5px;
  height: 14px;
}

.page-faq .qa[open] .qa__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .qa__body {
  padding: 0 1.15rem 1.2rem;
}

.page-faq .qa__body > * + * {
  margin-top: .7rem;
}

.page-faq .qa__direct {
  margin: 0;
  padding: .75rem .9rem;
  border-left: 2px solid var(--neon);
  border-radius: var(--r-sm);
  background: rgba(34, 224, 214, .07);
  font-size: .97rem;
  font-weight: 600;
  line-height: 1.7;
  color: var(--paper);
}

.page-faq .qa__body p {
  max-width: 38em;
  font-size: .89rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .qa__body a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 214, .4);
  transition: color .32s var(--ease), border-color .32s var(--ease);
}

.page-faq .qa__body a:hover,
.page-faq .qa__body a:focus-visible {
  color: var(--amber);
  border-color: var(--amber);
}

.page-faq .qa-group__more {
  margin: 1.35rem 0 0;
  font-size: .86rem;
}

.page-faq .qa-group__more a {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .5rem 1rem;
  border: 1px solid rgba(122, 92, 255, .45);
  border-radius: var(--pill);
  color: var(--mist);
  text-decoration: none;
  transition: border-color .32s var(--ease), color .32s var(--ease), background-color .32s var(--ease);
}

.page-faq .qa-group__more a:hover,
.page-faq .qa-group__more a:focus-visible {
  border-color: var(--violet);
  color: var(--paper);
  background: var(--violet-dim);
}

/* ---------- 联系面板 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.25rem);
  margin-top: clamp(1.4rem, 3.5vw, 2rem);
  padding: clamp(1.5rem, 4vw, 2.25rem);
  border: 1px solid rgba(122, 92, 255, .32);
  border-radius: var(--r-xl);
  background:
    radial-gradient(circle at 90% 8%, rgba(122, 92, 255, .3), transparent 58%),
    linear-gradient(150deg, rgba(20, 28, 51, .95), rgba(5, 7, 14, .92));
}

.page-faq .faq-contact__title {
  margin: 0 0 .85rem;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-faq .faq-contact__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .55rem;
}

.page-faq .faq-contact__list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .89rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-contact__list li::before {
  content: "";
  position: absolute;
  top: .68em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
}

.page-faq .faq-contact__note {
  margin: 1.05rem 0 0;
  font-size: .84rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-contact__note a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 214, .4);
}

.page-faq .faq-contact__note a:hover,
.page-faq .faq-contact__note a:focus-visible {
  color: var(--amber);
  border-color: var(--amber);
}

.page-faq .faq-contact__channels {
  display: grid;
  gap: .7rem;
  align-content: start;
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .6rem;
  margin: 0;
  padding: .6rem .85rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: rgba(5, 7, 14, .5);
}

.page-faq .faq-contact__key {
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-faq .faq-contact__val {
  font-family: var(--font-mono);
  font-size: .88rem;
  letter-spacing: .02em;
  color: var(--amber);
  word-break: break-all;
}

.page-faq .faq-contact__channels .btn {
  justify-self: start;
}

@media (min-width: 860px) {
  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__echo svg {
    animation: none;
  }
  .page-faq .step:hover {
    transform: none;
  }
}
</final>
</final>