.page-faq {
  --faq-gap: clamp(22px, 3.4vw, 40px);
  background: var(--ink);
  color: var(--paper);
}

/* ---------- 首屏：问题索引海报 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(56px, 9vw, 104px) 0 clamp(48px, 7vw, 92px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(90% 70% at 88% -10%, rgba(31, 224, 194, 0.14), transparent 62%),
    radial-gradient(70% 60% at 0% 112%, rgba(28, 36, 64, 0.86), transparent 72%),
    linear-gradient(180deg, var(--panel) 0%, var(--ink) 80%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(43, 74, 65, 0.32) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, rgba(43, 74, 65, 0.22) 0 1px, transparent 1px 72px);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 78%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 78%);
}

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

.page-faq .faq-hero__inner {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(18px, 3vw, 32px);
}

.page-faq .faq-hero h1 {
  margin: clamp(10px, 1.6vw, 18px) 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 6.4vw, 56px);
  line-height: 1.16;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .faq-hero__dek {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 40ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* 分类胶囊 */
.page-faq .faq-chips {
  display: flex;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 30px);
  padding-bottom: 6px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-chips::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-chip {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(11, 31, 26, 0.72);
  color: var(--mist);
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}

.page-faq .faq-chip::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--line);
  transition: background var(--t-fast);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  color: var(--paper);
  border-color: var(--signal);
  background: rgba(31, 224, 194, 0.08);
  outline: none;
}

.page-faq .faq-chip:hover::before,
.page-faq .faq-chip:focus-visible::before {
  background: var(--signal);
}

/* 折叠问答 */
.page-faq .faq-list {
  border-top: 1px solid var(--line);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item__sum {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(12px, 2vw, 20px);
  padding: clamp(14px, 2vw, 20px) 2px;
  list-style: none;
  cursor: pointer;
}

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

.page-faq .faq-item__sum::marker {
  content: "";
}

.page-faq .faq-item__no {
  font-family: var(--font-num);
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--line);
  transition: color var(--t-fast);
}

.page-faq .faq-item__q {
  font-size: clamp(15px, 1.7vw, 18px);
  font-weight: 500;
  line-height: 1.55;
  color: var(--paper);
  transition: color var(--t-fast);
}

.page-faq .faq-item__mark {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--mist);
  font-size: 15px;
  line-height: 1;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-faq .faq-item__mark::before {
  content: "+";
}

.page-faq .faq-item[open] .faq-item__mark::before {
  content: "\2013";
}

.page-faq .faq-item__sum:hover .faq-item__q {
  color: var(--signal-soft);
}

.page-faq .faq-item[open] .faq-item__no {
  color: var(--signal);
}

.page-faq .faq-item[open] .faq-item__mark {
  border-color: var(--signal);
  color: var(--signal);
}

.page-faq .faq-item__a {
  padding: 0 2px clamp(16px, 2.4vw, 24px) calc(clamp(20px, 3vw, 32px) + clamp(12px, 2vw, 20px));
  animation: faq-reveal var(--t-base);
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-item__a p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-item__a a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 224, 194, 0.42);
  transition: border-color var(--t-fast), color var(--t-fast);
}

.page-faq .faq-item__a a:hover {
  color: var(--signal-soft);
  border-color: var(--signal-soft);
}

/* ---------- 正文分区 ---------- */
.page-faq .faq-section {
  padding: clamp(40px, 6vw, 76px) 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 96px;
}

.page-faq .faq-hero + .faq-section {
  border-top: 0;
}

.page-faq .faq-section__head {
  max-width: 62ch;
}

.page-faq .faq-section__head h2 {
  margin: clamp(10px, 1.4vw, 16px) 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .faq-section__intro {
  margin: clamp(12px, 1.8vw, 18px) 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* 图片容器 */
.page-faq .faq-figure {
  margin: clamp(22px, 3vw, 34px) 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--panel);
  overflow: hidden;
}

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

.page-faq .faq-figure--tall {
  margin: 0;
}

/* 三步 */
.page-faq .steps {
  display: grid;
  gap: 14px;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-faq .step {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: linear-gradient(160deg, var(--panel), var(--raise));
  transition: border-color var(--t-base), transform var(--t-base);
}

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

.page-faq .step__no {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(30px, 5vw, 48px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--amber);
}

.page-faq .step__title {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-faq .step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* 旧版本资料 */
.page-faq .legacy-grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .legacy-note {
  padding: clamp(16px, 2.2vw, 22px);
  border: 1px solid var(--line);
  border-left: 2px solid var(--wine);
  border-radius: var(--radius-card);
  background: var(--panel);
}

.page-faq .legacy-note h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
}

.page-faq .legacy-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* 注册与关注 */
.page-faq .account-steps {
  margin-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--line);
}

.page-faq .account-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2.4vw, 26px);
  padding: clamp(16px, 2.4vw, 24px) 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .account-step__no {
  display: grid;
  place-items: center;
  width: clamp(34px, 5vw, 46px);
  height: clamp(34px, 5vw, 46px);
  border: 1px solid var(--signal);
  border-radius: 50%;
  font-family: var(--font-num);
  font-size: 16px;
  font-weight: 600;
  color: var(--signal);
}

.page-faq .account-step__body h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
}

.page-faq .account-step__body p {
  margin: 0;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .account-tail {
  margin: clamp(20px, 3vw, 28px) 0 0;
  max-width: 66ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .account-tail a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 224, 194, 0.42);
}

.page-faq .account-tail a:hover {
  color: var(--signal-soft);
  border-color: var(--signal-soft);
}

/* 小屏战报 */
.page-faq .mobile-split {
  display: grid;
  gap: clamp(22px, 3.4vw, 44px);
}

.page-faq .mobile-points {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-faq .mobile-points li {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(22, 51, 43, 0.52);
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .mobile-points li span {
  display: block;
  margin-bottom: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--signal-soft);
}

/* 资料与客服 */
.page-faq .support-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-faq .support-card {
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--panel);
}

.page-faq .support-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-faq .support-card > p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .mail-template {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--indigo-deep);
  font-family: var(--font-num);
  font-size: 13px;
  line-height: 1.4;
  color: var(--paper);
}

.page-faq .mail-template p {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  margin: 0;
  padding: 7px 0;
  border-bottom: 1px dashed rgba(43, 74, 65, 0.72);
  word-break: break-word;
}

.page-faq .mail-template p:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .mail-template span {
  flex: 0 0 auto;
  min-width: 84px;
  color: var(--amber);
}

.page-faq .contact-list {
  margin: 0 0 16px;
  display: grid;
  gap: 10px;
}

.page-faq .contact-list__row {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(43, 74, 65, 0.6);
}

.page-faq .contact-list__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .contact-list dt {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-faq .contact-list dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .support-tail {
  margin: 0 0 10px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .support-tail:last-child {
  margin-bottom: 0;
}

.page-faq .support-tail a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 224, 194, 0.42);
}

.page-faq .support-tail a:hover {
  color: var(--signal-soft);
  border-color: var(--signal-soft);
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 700px) {
  .page-faq .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .legacy-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .support-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: clamp(36px, 4.6vw, 72px);
    align-items: start;
  }

  .page-faq .faq-hero__lead {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-chips {
    flex-direction: column;
    align-items: stretch;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-chip {
    width: 100%;
    justify-content: flex-start;
    padding: 11px 18px;
  }

  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .mobile-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 360px);
    align-items: center;
  }

  .page-faq .faq-figure--tall {
    max-width: 380px;
    margin-left: auto;
  }
}

@media (min-width: 1160px) {
  .page-faq .faq-section__head h2 {
    max-width: 24ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__a {
    animation: none;
  }

  .page-faq .step:hover {
    transform: none;
  }
}