.page-faq {
  --faq-arrow: rgba(255, 122, 47, .55);
  position: relative;
  padding-bottom: 72px;
}

.page-faq .faq-rail {
  display: none;
}

@media (min-width: 1240px) {
  .page-faq .faq-rail {
    display: grid;
  }
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-top: 40px;
  padding-bottom: 8px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -50% -30% auto -40%;
  height: 560px;
  background:
    radial-gradient(circle at 28% 42%, rgba(139, 92, 246, .34), transparent 62%),
    radial-gradient(circle at 74% 20%, rgba(255, 122, 47, .26), transparent 58%);
  pointer-events: none;
  z-index: 0;
}

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

.page-faq .faq-hero__title {
  margin: 20px 0 0;
  font-size: clamp(36px, 8.4vw, 88px);
  line-height: 1.02;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--ink);
  text-shadow: 3px 3px 0 rgba(255, 122, 47, .2), 6px 6px 0 rgba(139, 92, 246, .12);
  max-width: 16ch;
}

.page-faq .faq-hero__lede {
  margin: 24px 0 0;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
}

.page-faq .faq-hero__fact {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding-left: 13px;
  border-left: 2px solid var(--line);
}

.page-faq .faq-hero__fact-num {
  font-family: var(--font-mono);
  font-size: 27px;
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
}

.page-faq .faq-hero__fact:nth-child(2) .faq-hero__fact-num {
  color: var(--orange);
}

.page-faq .faq-hero__fact:nth-child(3) .faq-hero__fact-num {
  color: var(--violet);
}

.page-faq .faq-hero__fact:nth-child(4) .faq-hero__fact-num {
  color: var(--cyan);
}

.page-faq .faq-hero__fact-label {
  font-size: 13.5px;
  color: var(--muted);
  letter-spacing: .04em;
}

/* ---------- 攻略瀑布流 ---------- */

.page-faq .faq-stream__figure {
  margin: 30px 0 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--panel-2);
}

.page-faq .faq-stream__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

.page-faq .faq-masonry {
  column-count: 1;
  column-gap: 18px;
  margin-top: 8px;
}

@media (min-width: 660px) {
  .page-faq .faq-masonry {
    column-count: 2;
    column-gap: 20px;
  }
}

@media (min-width: 1060px) {
  .page-faq .faq-masonry {
    column-count: 3;
    column-gap: 24px;
  }
}

.page-faq .faq-card {
  break-inside: avoid;
  -webkit-column-break-inside: avoid;
  page-break-inside: avoid;
  margin: 0 0 18px;
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease);
}

.page-faq .faq-card:hover {
  border-color: var(--amber);
  box-shadow: 0 0 0 1px rgba(255, 209, 102, .3), 0 14px 26px rgba(4, 8, 20, .5);
  transform: translateY(-3px);
}

@media (min-width: 1060px) {
  .page-faq .faq-card:nth-child(3n + 2) {
    margin-top: 26px;
  }
  .page-faq .faq-card:nth-child(5n) {
    margin-top: 12px;
  }
}

.page-faq .faq-card__top {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 13px;
}

.page-faq .faq-lv,
.page-faq .faq-cfg {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.5;
  letter-spacing: .05em;
  padding: 3px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

.page-faq .faq-lv--1 { background: #FFD166; color: #0B1226; }
.page-faq .faq-lv--2 { background: #FFC94F; color: #0B1226; }
.page-faq .faq-lv--3 { background: #FFBE3D; color: #0B1226; }
.page-faq .faq-lv--4 { background: #FFAE36; color: #0B1226; }
.page-faq .faq-lv--5 { background: #FF9A33; color: #0B1226; }
.page-faq .faq-lv--6 { background: #FF7A2F; color: #0B1226; }
.page-faq .faq-lv--7 { background: #EC6039; color: #F2F0E8; }
.page-faq .faq-lv--8 { background: #BC59DE; color: #F2F0E8; }
.page-faq .faq-lv--9 { background: #8B5CF6; color: #F2F0E8; }

.page-faq .faq-cfg {
  background: transparent;
  border: 1px solid var(--cyan);
  color: var(--cyan);
}

.page-faq .faq-cfg--main {
  border-color: var(--violet);
  color: #C4B5FD;
}

.page-faq .faq-cfg--pro {
  border-color: var(--amber);
  color: var(--amber);
}

.page-faq .faq-card__title {
  margin: 0 0 10px;
  font-size: 18.5px;
  line-height: 1.45;
  font-weight: 800;
  color: var(--ink);
}

.page-faq .faq-card__desc {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .faq-card__meta {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: #6E7BA0;
}

/* ---------- 难度阶梯 ---------- */

.page-faq .faq-ladder {
  list-style: none;
  display: flex;
  align-items: flex-end;
  gap: 6px;
  margin: 30px 0 0;
  padding: 0 0 4px;
  overflow-x: auto;
  overflow-y: hidden;
}

.page-faq .faq-ladder__step {
  flex: 1 0 34px;
  min-width: 34px;
  border-radius: 8px 8px 4px 4px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  padding: 6px 3px 9px;
  text-align: center;
  font-family: var(--font-mono);
  line-height: 1.2;
  transition: transform var(--ease), box-shadow var(--ease);
}

.page-faq .faq-ladder__step:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 14px rgba(255, 122, 47, .35);
}

.page-faq .faq-ladder__code {
  font-size: 12px;
  font-weight: 700;
}

.page-faq .faq-ladder__name {
  margin-top: 3px;
  font-size: 10px;
  letter-spacing: .02em;
  opacity: .8;
  white-space: nowrap;
  font-family: var(--font-sans);
}

.page-faq .faq-ladder__step:nth-child(1) { height: 62px; }
.page-faq .faq-ladder__step:nth-child(2) { height: 72px; }
.page-faq .faq-ladder__step:nth-child(3) { height: 82px; }
.page-faq .faq-ladder__step:nth-child(4) { height: 92px; }
.page-faq .faq-ladder__step:nth-child(5) { height: 102px; }
.page-faq .faq-ladder__step:nth-child(6) { height: 112px; }
.page-faq .faq-ladder__step:nth-child(7) { height: 122px; }
.page-faq .faq-ladder__step:nth-child(8) { height: 132px; }
.page-faq .faq-ladder__step:nth-child(9) { height: 142px; }

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

@media (min-width: 800px) {
  .page-faq .faq-ranges {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }
}

.page-faq .faq-range {
  padding: 18px 20px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  border-radius: var(--radius-sm);
}

.page-faq .faq-range--main {
  border-left-color: var(--orange);
}

.page-faq .faq-range--pro {
  border-left-color: var(--violet);
}

.page-faq .faq-range__tag {
  margin: 0 0 8px;
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-faq .faq-range__name {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
}

.page-faq .faq-range__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-qa__stack {
  display: grid;
  gap: 14px;
  margin-top: 32px;
}

.page-faq .faq-qa__group {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--ease);
}

.page-faq .faq-qa__group[data-open] {
  border-color: rgba(255, 122, 47, .55);
}

.page-faq .faq-qa__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 17px 18px;
  background: transparent;
  border: 0;
  color: var(--ink);
  text-align: left;
  font: inherit;
  cursor: pointer;
  transition: background var(--ease);
}

.page-faq .faq-qa__trigger:hover {
  background: rgba(139, 92, 246, .1);
}

.page-faq .faq-qa__num {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-faq .faq-qa__cat {
  font-size: 18px;
  font-weight: 800;
}

.page-faq .faq-qa__count {
  margin-left: auto;
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 11px;
  white-space: nowrap;
}

.page-faq .faq-qa__list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-qa__item {
  padding: 17px 18px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-qa__item:last-child {
  border-bottom: 0;
}

.page-faq .faq-qa__q {
  position: relative;
  margin: 0 0 8px;
  padding-left: 22px;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .faq-qa__q::before {
  content: "Q";
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
}

.page-faq .faq-qa__a {
  position: relative;
  margin: 0;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .faq-qa__a::before {
  content: "A";
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--orange);
}

/* ---------- 排障三步 ---------- */

.page-faq .faq-fix__figure {
  margin: 30px 0 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--panel-2);
}

.page-faq .faq-fix__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

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

@media (min-width: 780px) {
  .page-faq .faq-fix__steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
  }
}

.page-faq .faq-fix__step {
  position: relative;
  padding: 20px 20px 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color var(--ease), transform var(--ease);
}

.page-faq .faq-fix__step:hover,
.page-faq .faq-fix__step:focus-within {
  border-color: var(--amber);
  transform: translateY(-3px);
}

.page-faq .faq-fix__step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 32px;
  bottom: -14px;
  width: 11px;
  height: 11px;
  border-right: 2px solid var(--faq-arrow);
  border-bottom: 2px solid var(--faq-arrow);
  transform: rotate(45deg);
}

@media (min-width: 780px) {
  .page-faq .faq-fix__step:not(:last-child)::after {
    left: auto;
    right: -16px;
    bottom: auto;
    top: 44px;
    transform: rotate(-45deg);
  }
}

.page-faq .faq-fix__num {
  display: inline-block;
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--orange);
  margin-bottom: 10px;
}

.page-faq .faq-fix__title {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
}

.page-faq .faq-fix__body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 人工支持 ---------- */

.page-faq .faq-help__panel {
  margin-top: 22px;
  padding: 28px 20px 30px;
  background:
    linear-gradient(155deg, rgba(139, 92, 246, .2), rgba(11, 18, 38, .94) 58%);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

@media (min-width: 780px) {
  .page-faq .faq-help__panel {
    padding: 36px 34px 38px;
  }
}

.page-faq .faq-help__grid {
  display: grid;
  gap: 24px;
  margin-top: 26px;
}

@media (min-width: 780px) {
  .page-faq .faq-help__grid {
    grid-template-columns: 1fr 1fr;
    gap: 34px;
  }
}

.page-faq .faq-help__title {
  margin: 0 0 14px;
  font-size: 16.5px;
  font-weight: 800;
  color: var(--ink);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--orange);
}

.page-faq .faq-help__block:nth-child(2) .faq-help__list li::before {
  background: var(--cyan);
}

.page-faq .faq-help__contact {
  margin: 18px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-help__link {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 209, 102, .55);
  word-break: break-all;
}

.page-faq .faq-help__link:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-faq .faq-help__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

@media (max-width: 420px) {
  .page-faq .faq-help__links .btn {
    width: 100%;
    text-align: center;
  }
  .page-faq .faq-hero__fact-num {
    font-size: 24px;
  }
}