/* ===================== 帮助中心 · page-faq ===================== */

.page-faq {
  --faq-line: rgba(43, 58, 85, .9);
  --faq-line-cream: rgba(23, 18, 14, .2);
  --faq-anchor: calc(var(--header-space) + 24px);
  display: block;
  background: var(--ink);
  color: var(--cream);
  overflow-x: hidden;
}

.page-faq [id] {
  scroll-margin-top: var(--faq-anchor);
}

.page-faq .section-head {
  max-width: 74ch;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-space) + 22px) 0 52px;
  background: var(--ink);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(43, 58, 85, .55) 0 1px, transparent 1px var(--grid-tile)),
    repeating-linear-gradient(0deg, rgba(43, 58, 85, .3) 0 1px, transparent 1px var(--grid-tile));
  opacity: .5;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -12%;
  left: -28%;
  width: 66%;
  height: 124%;
  background: radial-gradient(ellipse at 40% 45%, rgba(31, 107, 255, .3), rgba(31, 107, 255, 0) 62%);
  pointer-events: none;
  animation: faq-scan 12s linear infinite alternate;
}

@keyframes faq-scan {
  from { transform: translateX(-6%); }
  to   { transform: translateX(36%); }
}

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

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

.page-faq .breadcrumb {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .07em;
  color: var(--haze);
}

.page-faq .breadcrumb a {
  color: var(--blue-soft);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover {
  color: var(--orange);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 30px;
  margin-top: 26px;
}

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

.page-faq .faq-kicker {
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--orange);
  margin: 0 0 12px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(1.85rem, 5.4vw, 3.35rem);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--cream);
}

.page-faq .faq-hero .lead {
  max-width: 62ch;
  font-size: 1.02rem;
  line-height: 1.78;
  color: var(--blue-soft);
  margin: 0 0 24px;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-index {
  min-width: 0;
  border: 1px solid var(--grid);
  background: rgba(10, 13, 20, .78);
  padding: 18px 18px 10px;
}

.page-faq .faq-index-title {
  margin: 0 0 10px;
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--haze);
}

.page-faq .index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .index-item {
  margin: 0;
}

.page-faq .index-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--faq-line);
  font-size: .93rem;
  line-height: 1.45;
  color: var(--blue-soft);
  text-decoration: none;
}

.page-faq .index-item:last-child .index-link {
  border-bottom: 0;
}

.page-faq .index-link:hover {
  color: var(--cream);
}

.page-faq .index-link[aria-current] {
  color: var(--orange);
}

.page-faq .index-num {
  flex: 0 0 auto;
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--orange);
}

/* ---------- 区块底色 ---------- */

.page-faq .faq-band {
  padding: 56px 0;
}

.page-faq .faq-band--dark {
  background: var(--ink-2);
  color: var(--cream);
}

.page-faq .faq-band--cream {
  background: var(--cream);
  color: var(--brown);
}

.page-faq .faq-band--cream .section-title {
  color: var(--brown);
}

.page-faq .faq-band--cream .section-kicker {
  color: var(--orange);
}

.page-faq .faq-band--cream .section-note {
  color: rgba(23, 18, 14, .74);
}

.page-faq .faq-band--dark .section-kicker {
  color: var(--orange);
}

.page-faq .faq-band--dark .section-title {
  color: var(--cream);
}

.page-faq .faq-band--dark .section-note {
  color: var(--blue-soft);
}

/* ---------- 四步自检 ---------- */

.page-faq .step-rail {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  gap: 26px;
}

.page-faq .step-item {
  position: relative;
  padding: 22px 16px 18px;
  border: 1px solid var(--grid);
  border-top: 2px solid var(--blue);
  background: rgba(16, 23, 37, .62);
}

.page-faq .step-item::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -1px;
  width: 46px;
  height: 2px;
  background: var(--orange);
}

.page-faq .step-num {
  display: inline-block;
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--orange);
  margin-bottom: 8px;
}

.page-faq .step-title {
  margin: 0 0 12px;
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-faq .step-desc {
  margin: 0 0 8px;
  font-size: .92rem;
  line-height: 1.72;
  color: var(--blue-soft);
}

.page-faq .step-key {
  display: inline-block;
  margin-right: 6px;
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
  color: var(--ink);
  background: var(--blue-soft);
}

.page-faq .step-time {
  margin: 12px 0 0;
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--haze);
}

/* ---------- 图片容器 ---------- */

.page-faq .faq-figure {
  margin: 34px 0 0;
}

.page-faq .faq-figure .figure-media {
  border: 1px solid var(--grid);
  background: var(--ink-3);
  overflow: hidden;
}

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

.page-faq .faq-figure .figure-caption {
  margin-top: 12px;
  font-size: .86rem;
  line-height: 1.72;
  color: var(--haze);
}

/* ---------- 检查项区 ---------- */

.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 26px 0 34px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--faq-line-cream);
}

.page-faq .filter-btn {
  appearance: none;
  border: 1px solid rgba(23, 18, 14, .38);
  background: transparent;
  color: var(--brown);
  font-family: var(--font-sans);
  font-size: .88rem;
  padding: 8px 14px;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .filter-btn .mono {
  font-size: .72rem;
  color: var(--orange);
  margin-left: 4px;
}

.page-faq .filter-btn:hover,
.page-faq .filter-btn[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--cream);
}

.page-faq .filter-count {
  margin-left: auto;
  font-size: .76rem;
  letter-spacing: .08em;
  color: rgba(23, 18, 14, .6);
}

.page-faq .check-module {
  border-top: 3px solid var(--blue);
  padding-top: 20px;
}

.page-faq .check-module[data-tags="插件冲突"] {
  border-top-color: var(--orange);
}

.page-faq .check-module[data-tags="网络环境"] {
  border-top-color: var(--amber);
}

.page-faq .check-head {
  max-width: 76ch;
  margin-bottom: 18px;
}

.page-faq .check-kicker {
  margin: 0 0 8px;
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--blue);
}

.page-faq .check-module[data-tags="插件冲突"] .check-kicker {
  color: var(--orange);
}

.page-faq .check-module[data-tags="网络环境"] .check-kicker {
  color: #B57600;
}

.page-faq .check-title {
  margin: 0 0 10px;
  font-size: clamp(1.2rem, 3.4vw, 1.6rem);
  font-weight: 900;
  letter-spacing: -.015em;
  color: var(--brown);
}

.page-faq .check-lead {
  margin: 0;
  font-size: .95rem;
  line-height: 1.78;
  color: rgba(23, 18, 14, .76);
}

.page-faq .check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--faq-line-cream);
}

.page-faq .check-row {
  border-bottom: 1px solid var(--faq-line-cream);
  transition: background-color var(--dur) var(--ease);
}

.page-faq .check-row:hover {
  background: rgba(31, 107, 255, .06);
}

.page-faq .check-label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 6px;
  cursor: pointer;
}

.page-faq .check-box {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  position: relative;
  border: 1px solid rgba(23, 18, 14, .5);
  background: transparent;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .check-box:checked {
  background: var(--mint);
  border-color: var(--mint);
}

.page-faq .check-box:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 2px;
  width: 6px;
  height: 11px;
  border-right: 2px solid #06231C;
  border-bottom: 2px solid #06231C;
  transform: rotate(42deg);
}

.page-faq .check-box:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.page-faq .check-num {
  flex: 0 0 auto;
  min-width: 24px;
  font-size: .76rem;
  letter-spacing: .06em;
  color: rgba(23, 18, 14, .48);
  padding-top: 3px;
}

.page-faq .check-body {
  display: block;
  min-width: 0;
}

.page-faq .check-title {
  display: block;
  font-size: .98rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--brown);
  transition: color var(--dur) var(--ease);
}

.page-faq .check-desc {
  display: block;
  margin-top: 4px;
  font-size: .88rem;
  line-height: 1.72;
  color: rgba(23, 18, 14, .7);
}

.page-faq .check-box:checked ~ .check-body .check-title {
  color: rgba(23, 18, 14, .44);
  text-decoration: line-through;
  text-decoration-color: var(--mint);
}

.page-faq .check-divider {
  position: relative;
  height: 10px;
  margin: 34px 0;
  background: var(--ink);
}

.page-faq .check-divider::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 72px;
  background: var(--orange);
}

/* ---------- 问答双栏 ---------- */

.page-faq .qa-grid {
  display: grid;
  gap: 28px;
  margin-top: 30px;
}

.page-faq .qa-nav {
  border: 1px solid var(--grid);
  background: rgba(10, 13, 20, .72);
  padding: 16px 18px 8px;
}

.page-faq .qa-nav-title {
  margin: 0 0 8px;
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--mint);
}

.page-faq .qa-body {
  min-width: 0;
}

.page-faq .qa-block + .qa-block {
  margin-top: 26px;
  padding-top: 24px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .qa-title {
  margin: 0 0 12px;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--cream);
  padding-left: 12px;
  border-left: 3px solid var(--mint);
}

.page-faq .qa-text {
  margin: 0 0 10px;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--blue-soft);
}

.page-faq .qa-text .mono {
  color: var(--mint);
  font-size: .88rem;
}

.page-faq .qa-bullets {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
}

.page-faq .qa-bullets li {
  position: relative;
  padding: 8px 0 8px 20px;
  font-size: .94rem;
  line-height: 1.72;
  color: var(--blue-soft);
  border-bottom: 1px dashed var(--faq-line);
}

.page-faq .qa-bullets li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 17px;
  width: 6px;
  height: 6px;
  background: var(--orange);
}

.page-faq .qa-bullets .mono {
  display: inline-block;
  min-width: 72px;
  color: var(--orange);
  font-size: .8rem;
}

.page-faq .faq-figure--relogin {
  margin-top: 30px;
  max-width: 620px;
}

/* ---------- 小屏端问答 ---------- */

.page-faq .mini-faq {
  margin-top: 28px;
  border-top: 1px solid var(--faq-line-cream);
}

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

.page-faq .mini-q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 4px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--brown);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .mini-q::before {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--orange);
}

.page-faq .mini-item[open] .mini-q::before {
  content: "−";
}

.page-faq .mini-item[open] .mini-q {
  color: var(--blue);
}

.page-faq .mini-a {
  padding: 0 4px 18px 30px;
  font-size: .93rem;
  line-height: 1.8;
  color: rgba(23, 18, 14, .76);
}

.page-faq .mini-a a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .mini-a a:hover {
  color: var(--orange);
}

/* ---------- 联系条 ---------- */

.page-faq .help-strip {
  display: grid;
  gap: 28px;
  border: 1px solid var(--grid);
  background:
    linear-gradient(120deg, rgba(35, 211, 160, .12), rgba(35, 211, 160, 0) 58%),
    var(--ink-3);
  padding: 28px 22px;
}

.page-faq .help-title {
  margin: 0 0 12px;
  font-size: clamp(1.3rem, 3.6vw, 1.85rem);
  font-weight: 900;
  letter-spacing: -.015em;
  color: var(--cream);
}

.page-faq .help-text {
  margin: 0 0 20px;
  max-width: 62ch;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--blue-soft);
}

.page-faq .help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .help-channels {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .help-channel {
  border-left: 2px solid var(--mint);
  padding-left: 14px;
}

.page-faq .help-key {
  display: block;
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--mint);
  margin-bottom: 6px;
}

.page-faq .help-val {
  display: block;
  font-size: .96rem;
  color: var(--cream);
  word-break: break-word;
}

.page-faq .help-desc {
  display: block;
  margin-top: 6px;
  font-size: .85rem;
  line-height: 1.7;
  color: var(--haze);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-faq .faq-band {
    padding: 70px 0;
  }

  .page-faq .faq-hero {
    padding: calc(var(--header-space) + 32px) 0 64px;
  }

  .page-faq .help-strip {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 40px;
    padding: 36px 32px;
    align-items: start;
  }

  .page-faq .step-rail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(272px, .95fr);
    gap: 52px;
    align-items: start;
  }

  .page-faq .step-rail {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-faq .step-item {
    border-right: 0;
    padding: 22px 18px 20px;
  }

  .page-faq .step-item:last-child {
    border-right: 1px solid var(--grid);
  }

  .page-faq .check-module {
    display: grid;
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }

  .page-faq .check-head {
    margin-bottom: 0;
    position: sticky;
    top: var(--faq-anchor);
  }

  .page-faq .check-list {
    border-top: 0;
  }

  .page-faq .check-row:first-child {
    border-top: 1px solid var(--faq-line-cream);
  }

  .page-faq .qa-grid {
    grid-template-columns: minmax(0, 268px) minmax(0, 1fr);
    gap: 48px;
  }

  .page-faq .qa-nav {
    position: sticky;
    top: var(--faq-anchor);
  }

  .page-faq .faq-figure {
    margin-top: 42px;
  }
}

@media (max-width: 480px) {
  .page-faq .filter-count {
    margin-left: 0;
    width: 100%;
  }

  .page-faq .check-label {
    gap: 10px;
  }

  .page-faq .help-strip {
    padding: 22px 16px;
  }
}