.page-faq {
  color: var(--text);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumbs {
  padding-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -30% -20% auto auto;
  width: min(70vmax, 900px);
  aspect-ratio: 1;
  background: radial-gradient(circle at 50% 50%, rgba(88, 213, 230, 0.16), rgba(88, 213, 230, 0) 62%);
  pointer-events: none;
}

.page-faq .faq-hero-grid {
  position: relative;
  align-items: center;
  gap: clamp(28px, 5vw, 56px);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.85rem, 5.2vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 14px 0 18px;
  color: var(--snow);
}

.page-faq .faq-hero .lede {
  max-width: 34em;
  color: var(--text-dim);
  font-size: 17px;
  line-height: 1.85;
  margin: 0;
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

/* ---------- 章节头 ---------- */
.page-faq .faq-head {
  max-width: 46em;
  margin-bottom: clamp(28px, 5vw, 52px);
}

.page-faq .faq-head .lede {
  color: var(--text-dim);
  margin: 12px 0 0;
}

/* ---------- 环形总览 ---------- */
.page-faq .faq-ring {
  position: relative;
  width: min(100%, 560px);
  aspect-ratio: 1 / 1;
  margin: 0 auto;
  border: var(--bw-thin) dashed var(--line-soft);
  border-radius: 50%;
}

.page-faq .faq-ring::after {
  content: "";
  position: absolute;
  inset: 16%;
  border: var(--bw-thin) dashed rgba(88, 213, 230, 0.28);
  border-radius: 50%;
  pointer-events: none;
}

.page-faq .faq-ring-hub {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 34%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  border: var(--bw) solid var(--ice);
  background: var(--night-deep);
  display: grid;
  place-content: center;
  text-align: center;
  gap: 2px;
  z-index: 2;
}

.page-faq .faq-hub-num {
  display: block;
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--fl-yellow);
  line-height: 1;
}

.page-faq .faq-hub-label {
  display: block;
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--text-dim);
}

.page-faq .faq-ring-node {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 33%;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 12px 13px;
  background: var(--indigo);
  border: var(--bw) solid var(--obsidian);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: var(--snow);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-ring-node--1 { top: 8%; left: 50%; border-top-color: var(--fl-yellow); }
.page-faq .faq-ring-node--2 { top: 34%; left: 88%; border-right-color: var(--fl-blue); }
.page-faq .faq-ring-node--3 { top: 86%; left: 74%; border-bottom-color: var(--fl-red); }
.page-faq .faq-ring-node--4 { top: 86%; left: 26%; border-bottom-color: var(--ice); }
.page-faq .faq-ring-node--5 { top: 34%; left: 12%; border-left-color: var(--fl-green); }

.page-faq .faq-ring-node:hover,
.page-faq .faq-ring-node:focus-visible {
  transform: translate(-50%, -50%) translate(-3px, -3px);
  box-shadow: 8px 8px 0 var(--obsidian);
  border-color: var(--ice);
  outline: none;
}

.page-faq .faq-node-num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--fl-yellow);
}

.page-faq .faq-node-name {
  font-size: 13.5px;
  line-height: 1.5;
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* ---------- 分类区块 ---------- */
.page-faq .faq-class {
  position: relative;
}

.page-faq .faq-class-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(16px, 3vw, 30px);
  align-items: start;
  margin-bottom: clamp(24px, 4vw, 40px);
  padding-bottom: clamp(18px, 3vw, 26px);
  border-bottom: var(--bw-thin) solid var(--line-soft);
}

.page-faq .faq-class-head .lede {
  color: var(--text-dim);
  margin: 12px 0 0;
  max-width: 40em;
}

.page-faq .faq-class-ring {
  display: grid;
  place-items: center;
  width: clamp(52px, 8vw, 78px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  border: var(--bw) solid var(--ice);
  color: var(--ice);
  font-size: clamp(1rem, 2.2vw, 1.35rem);
  font-weight: 700;
  background: var(--night-deep);
}

.page-faq .faq-class--login .faq-class-ring { border-color: var(--fl-blue); color: var(--fl-blue); }
.page-faq .faq-class--display .faq-class-ring { border-color: var(--fl-yellow); color: var(--fl-yellow); }
.page-faq .faq-class--data .faq-class-ring { border-color: var(--fl-red); color: var(--fl-red); }
.page-faq .faq-class--subscribe .faq-class-ring { border-color: var(--fl-green); color: var(--fl-green); }

/* ---------- 步骤列表 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-step-label {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  background: var(--indigo);
  border: var(--bw) solid var(--obsidian);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-step-label:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 var(--obsidian);
  border-color: var(--ice);
}

.page-faq .faq-box {
  appearance: none;
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  margin: 2px 0 0;
  border: var(--bw-thin) solid var(--haze);
  background: var(--night-deep);
  position: relative;
  cursor: pointer;
  flex: none;
}

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

.page-faq .faq-box:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 1px;
  width: 6px;
  height: 12px;
  border: solid var(--night-deep);
  border-width: 0 3px 3px 0;
  transform: rotate(42deg);
}

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

.page-faq .faq-idx {
  font-size: 13.5px;
  letter-spacing: 0.06em;
  color: var(--fl-yellow);
  padding-top: 3px;
}

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

.page-faq .faq-step-title {
  display: block;
  font-weight: 700;
  font-size: 1.03rem;
  color: var(--snow);
  letter-spacing: -0.01em;
  margin-bottom: 6px;
}

.page-faq .faq-step-text {
  display: block;
  color: var(--text-dim);
  font-size: 15.5px;
  line-height: 1.8;
  max-width: 42ch;
  overflow-wrap: break-word;
}

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

/* ---------- 折叠补充 ---------- */
.page-faq .faq-more {
  margin-top: 18px;
  padding-left: 16px;
  border-left: var(--bw) solid var(--line);
}

.page-faq .faq-more summary {
  cursor: pointer;
  list-style: none;
  padding: 6px 0;
  font-weight: 700;
  color: var(--ice);
  font-size: 15.5px;
}

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

.page-faq .faq-more summary::before {
  content: "＋";
  font-family: var(--font-mono);
  margin-right: 9px;
  color: var(--fl-yellow);
}

.page-faq .faq-more[open] summary::before {
  content: "－";
}

.page-faq .faq-more p {
  margin: 6px 0 10px;
  color: var(--text-dim);
  font-size: 15.5px;
  line-height: 1.85;
  max-width: 58ch;
}

.page-faq .faq-more p a {
  color: var(--ice);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 中段纹理 ---------- */
.page-faq .faq-texture {
  margin: clamp(30px, 6vw, 64px) 0;
}

.page-faq .faq-texture img {
  display: block;
  width: 100%;
  height: clamp(110px, 17vw, 190px);
  object-fit: cover;
  object-position: center;
  border-top: var(--bw) solid var(--line);
  border-bottom: var(--bw) solid var(--line);
  opacity: 0.6;
  filter: saturate(0.7);
}

/* ---------- 客服通道 ---------- */
.page-faq .faq-help-grid {
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-faq .faq-help .lede {
  color: var(--text-dim);
  margin: 12px 0 0;
  max-width: 36em;
}

.page-faq .faq-help-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-help-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: baseline;
  padding-bottom: 10px;
  border-bottom: var(--bw-thin) solid var(--line-soft);
  color: var(--text);
  font-size: 15.5px;
  line-height: 1.7;
}

.page-faq .faq-help-list .mono {
  color: var(--fl-yellow);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-faq .faq-channels {
  padding: clamp(20px, 3vw, 28px);
  background: var(--indigo);
  border: var(--bw) solid var(--obsidian);
  box-shadow: var(--shadow);
}

.page-faq .faq-channel-line {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  color: var(--snow);
  margin: 16px 0 0;
  overflow-wrap: anywhere;
}

.page-faq .faq-channel-note {
  margin: 16px 0 0;
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 1.8;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .page-faq .faq-ring {
    width: min(100%, 480px);
  }

  .page-faq .faq-ring-node {
    width: 36%;
  }
}

@media (max-width: 860px) {
  .page-faq .faq-hero-grid {
    gap: 30px;
  }

  .page-faq .faq-hero .lede,
  .page-faq .faq-step-text,
  .page-faq .faq-more p {
    max-width: none;
  }
}

@media (max-width: 720px) {
  .page-faq .faq-ring {
    width: 100%;
    aspect-ratio: auto;
    border: 0;
    border-radius: 0;
    display: grid;
    gap: 12px;
  }

  .page-faq .faq-ring::after,
  .page-faq .faq-ring-hub {
    display: none;
  }

  .page-faq .faq-ring-node {
    position: static;
    transform: none;
    width: 100%;
    flex-direction: row;
    align-items: baseline;
    gap: 12px;
    padding: 14px 16px;
  }

  .page-faq .faq-ring-node:hover,
  .page-faq .faq-ring-node:focus-visible {
    transform: translate(-2px, -2px);
  }

  .page-faq .faq-node-num {
    flex: none;
  }

  .page-faq .faq-class-head {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .page-faq .faq-step-label {
    grid-template-columns: auto 1fr;
    gap: 10px 12px;
  }

  .page-faq .faq-idx {
    padding-top: 2px;
  }

  .page-faq .faq-step-body {
    grid-column: 2 / -1;
  }
}

@media (max-width: 420px) {
  .page-faq .faq-step-label {
    padding: 14px;
  }

  .page-faq .faq-help-list li {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}