/* ==========================================================================
   使用指南 /guide/ —— 页面专属样式，全部限定在 .page-faq 作用域内
   ========================================================================== */

.page-faq {
  --faq-card: var(--ink-1);
  --faq-card-2: var(--ink-2);
  display: block;
  overflow-x: hidden;
  padding-bottom: var(--sp-6);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: 20px 0 0;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -160px;
  right: -130px;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(122, 68, 255, 0.3) 0%, rgba(122, 68, 255, 0) 68%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  max-width: 22ch;
  font-size: clamp(30px, 7.6vw, 58px);
  font-weight: 300;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}

.page-faq .faq-hero__break {
  margin-top: 30px;
  height: 2px;
  background: linear-gradient(90deg, var(--violet) 0%, var(--cyan) 48%, rgba(36, 227, 212, 0) 92%);
  transform: rotate(-0.8deg);
  transform-origin: left center;
}

/* ---------- 章节骨架 ---------- */

.page-faq .faq-sec {
  padding: 46px 0 0;
}

.page-faq .faq-sec + .faq-sec {
  padding-top: 58px;
}

.page-faq .sec__num {
  font-size: clamp(42px, 11vw, 86px);
  line-height: 0.9;
}

.page-faq .sec__title {
  margin-top: 8px;
  font-weight: 300;
  letter-spacing: -0.015em;
}

.page-faq .sec__lead {
  max-width: 62ch;
  color: var(--muted);
}

/* ---------- 01 查询流程 ---------- */

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

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

.page-faq .conf-step {
  position: relative;
  padding: 0 0 26px 42px;
}

.page-faq .conf-step:last-child {
  padding-bottom: 0;
}

.page-faq .conf-step::after {
  content: "";
  position: absolute;
  left: 14px;
  top: 34px;
  bottom: 4px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0%, rgba(36, 227, 212, 0) 100%);
}

.page-faq .conf-step:last-child::after {
  display: none;
}

.page-faq .conf-step__n {
  position: absolute;
  left: 0;
  top: 0;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-0);
  background: var(--cyan);
  clip-path: var(--cut-sm);
}

.page-faq .conf-step__t {
  margin: 2px 0 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

.page-faq .conf-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .conf-figure {
  margin: 0;
  border: 1px solid var(--ink-line);
}

/* ---------- 02 配置档位 ---------- */

.page-faq .tier-bars {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.page-faq .tier {
  padding: 20px 20px 22px;
  background: var(--faq-card);
  border: 1px solid var(--ink-line);
  clip-path: var(--cut-sm);
}

.page-faq .tier__track {
  height: 6px;
  margin-bottom: 16px;
  background: var(--ink-0);
  border-radius: 3px;
  overflow: hidden;
}

.page-faq .tier__fill {
  display: block;
  height: 100%;
  border-radius: 3px;
}

.page-faq .tier--min .tier__fill {
  width: 34%;
  background: var(--stone);
}

.page-faq .tier--rec .tier__fill {
  width: 67%;
  background: var(--cyan);
}

.page-faq .tier--high .tier__fill {
  width: 100%;
  background: linear-gradient(90deg, var(--violet) 0%, var(--gold) 100%);
}

.page-faq .tier__name {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
}

.page-faq .tier__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .match-list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--ink-line);
  background: var(--ink-line);
  display: grid;
  gap: 1px;
}

.page-faq .match-list li {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  background: var(--faq-card-2);
}

.page-faq .match-list__y {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-faq .match-list__x {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .match-note {
  margin: 16px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--violet);
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 03 / 04 / 06 编号折叠组 ---------- */

.page-faq .acc-group {
  margin-top: 28px;
  border-top: 1px solid var(--ink-line);
}

.page-faq .acc-group--tight {
  margin-top: 34px;
}

.page-faq .acc {
  border-bottom: 1px solid var(--ink-line);
  background: transparent;
}

.page-faq .acc__btn {
  display: grid;
  grid-template-columns: 40px 1fr 22px;
  align-items: start;
  gap: 12px;
  width: 100%;
  padding: 20px 2px;
  text-align: left;
  background: none;
  border: 0;
  cursor: pointer;
  color: var(--text);
  font-family: var(--font-sans);
}

.page-faq .acc__num {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
  transition: color 0.24s var(--ease);
}

.page-faq .acc__btn[aria-expanded="true"] .acc__num {
  color: var(--cyan);
}

.page-faq .acc__title {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--text);
}

.page-faq .acc__panel {
  padding: 0 2px 22px;
}

.page-faq .acc__panel p {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

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

/* ---------- 04 兑换三步阶梯 ---------- */

.page-faq .redeem-steps {
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-faq .redeem-step {
  position: relative;
  padding: 22px 20px 24px;
  background: linear-gradient(160deg, var(--faq-card-2) 0%, var(--faq-card) 100%);
  border: 1px solid var(--ink-line);
  clip-path: var(--cut-sm);
}

.page-faq .redeem-step__n {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-faq .redeem-step__t {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
}

.page-faq .redeem-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 05 攻略阅读路径 ---------- */

.page-faq .path-cards {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.page-faq .path-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 20px;
  background: var(--faq-card);
  border: 1px solid var(--ink-line);
  clip-path: var(--cut-sm);
  transition: border-color 0.24s var(--ease);
}

.page-faq .path-card__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.page-faq .path-card__t {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text);
}

.page-faq .path-card__p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .path-card__meter {
  height: 4px;
  margin-top: auto;
  background: var(--ink-0);
  border-radius: 2px;
  overflow: hidden;
}

.page-faq .path-card__meter span {
  display: block;
  height: 100%;
  border-radius: 2px;
}

.page-faq .path-card--1 .path-card__meter span {
  width: 34%;
  background: var(--cyan);
}

.page-faq .path-card--2 .path-card__meter span {
  width: 67%;
  background: var(--violet);
}

.page-faq .path-card--3 .path-card__meter span {
  width: 100%;
  background: linear-gradient(90deg, var(--violet) 0%, var(--gold) 100%);
}

.page-faq .path-card__time {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text);
}

.page-faq .path-figure {
  margin: 26px 0 0;
  border: 1px solid var(--ink-line);
}

.page-faq .path-note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .path-note a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 06 联系方式卡 ---------- */

.page-faq .help-grid {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.page-faq .help-card {
  padding: 22px 20px;
  background: var(--ink-0);
  border: 1px solid var(--ink-line);
  border-left: 2px solid var(--violet);
  clip-path: var(--cut-sm);
}

.page-faq .help-card__k {
  margin: 0 0 10px;
}

.page-faq .help-card__v {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 4.2vw, 19px);
  letter-spacing: -0.01em;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-faq .help-card__d {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 悬停效果（指针设备） ---------- */

@media (hover: hover) and (pointer: fine) {
  .page-faq .path-card:hover {
    border-color: var(--violet);
  }

  .page-faq .acc__btn:hover .acc__num {
    color: var(--violet);
  }

  .page-faq .acc__btn:hover .acc__title {
    color: var(--cyan);
  }
}

/* ---------- 平板 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding-top: 28px;
  }

  .page-faq .faq-hero__lead {
    font-size: 17px;
  }

  .page-faq .conf-steps {
    display: grid;
    gap: 0;
  }

  .page-faq .acc__btn {
    grid-template-columns: 52px 1fr 24px;
    padding: 22px 4px;
  }

  .page-faq .acc__panel {
    padding: 0 4px 24px 64px;
  }

  .page-faq .acc__title {
    font-size: 18px;
  }

  .page-faq .match-list li {
    grid-template-columns: 150px 1fr;
    align-items: baseline;
    gap: 22px;
  }

  .page-faq .redeem-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .page-faq .path-cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    align-items: end;
  }

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

/* ---------- 桌面 ---------- */

@media (min-width: 1024px) {
  .page-faq {
    padding-bottom: var(--sp-7);
  }

  .page-faq .faq-hero {
    padding-top: 40px;
  }

  .page-faq .faq-hero__break {
    margin-top: 40px;
  }

  .page-faq .faq-sec {
    padding-top: 56px;
  }

  .page-faq .faq-sec + .faq-sec {
    padding-top: 72px;
  }

  .page-faq .conf-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
    align-items: start;
  }

  .page-faq .tier-bars {
    gap: 16px;
  }

  .page-faq .tier {
    padding: 24px 26px 26px;
  }

  /* 兑换三步横向阶梯错位 */
  .page-faq .redeem-step:nth-child(2) {
    margin-top: 18px;
  }

  .page-faq .redeem-step:nth-child(3) {
    margin-top: 36px;
  }

  /* 阅读路径卡三层高度递进 */
  .page-faq .path-card--1 {
    min-height: 236px;
  }

  .page-faq .path-card--2 {
    min-height: 278px;
  }

  .page-faq .path-card--3 {
    min-height: 320px;
  }

  .page-faq .path-figure {
    max-width: 720px;
  }
}

/* ---------- 减少动态偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .acc__num,
  .page-faq .path-card {
    transition: none;
  }

  .page-faq .faq-hero__break {
    transform: none;
  }
}