.page-faq{
  background: var(--cream);
  color: var(--ink);
  --faq-line: rgba(36,28,22,0.16);
  --faq-line-dark: rgba(201,194,182,0.26);
  --faq-soft: #EBE0CD;
}

/* ---------- 首屏排查控制台 ---------- */
.page-faq .faq-hero{
  position: relative;
  overflow: hidden;
  color: var(--paper);
  background:
    repeating-linear-gradient(90deg, rgba(201,194,182,0.08) 0 1px, transparent 1px 76px),
    radial-gradient(120% 90% at 88% 0%, rgba(47,111,106,0.55) 0%, transparent 62%),
    linear-gradient(165deg, #0B2B2A 0%, #14181A 82%);
  padding: clamp(24px,5vw,46px) 0 clamp(36px,6vw,68px);
  border-bottom: 5px solid var(--flame);
}

.page-faq .faq-hero .crumbs__list{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 clamp(20px,4vw,36px);
  padding: 0;
  font-size: var(--fz-12);
  letter-spacing: 0.14em;
}
.page-faq .faq-hero .crumbs__item{ display: flex; align-items: center; gap: 8px; }
.page-faq .faq-hero .crumbs__item + .crumbs__item::before{
  content: "/";
  color: rgba(201,194,182,0.55);
}
.page-faq .faq-hero .crumbs__link{
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.page-faq .faq-hero .crumbs__link:hover{ color: var(--neon); border-bottom-color: var(--neon); }
.page-faq .faq-hero .crumbs__current{ color: var(--paper); }

.page-faq .faq-hero__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px,4vw,52px);
  min-width: 0;
}
.page-faq .faq-hero__grid > *{ min-width: 0; }

.page-faq .faq-hero__eyebrow{
  font-size: var(--fz-12);
  letter-spacing: 0.2em;
  color: var(--neon);
  margin: 0 0 14px;
}
.page-faq .faq-hero__title{
  margin: 0 0 18px;
  font-size: clamp(1.9rem, 6.4vw, 3.5rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.04em;
  color: var(--paper);
  max-width: 16ch;
}
.page-faq .faq-hero__intro{
  margin: 0 0 26px;
  max-width: 42ch;
  font-size: var(--fz-16);
  line-height: 1.8;
  color: rgba(255,249,239,0.8);
}
.page-faq .faq-hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: clamp(26px,4vw,38px);
}

.page-faq .faq-picker{
  border: 1px solid var(--faq-line-dark);
  padding: 16px;
  background: rgba(11,43,42,0.5);
}
.page-faq .faq-picker__label{
  margin: 0 0 12px;
  font-size: var(--fz-12);
  letter-spacing: 0.18em;
  color: var(--mist);
}
.page-faq .faq-picker__btns{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-faq .faq-picker__btn{
  font: inherit;
  font-size: var(--fz-14);
  line-height: 1.2;
  padding: 10px 14px;
  color: var(--paper);
  background: transparent;
  border: 1px solid rgba(201,194,182,0.35);
  border-radius: 0;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}
.page-faq .faq-picker__btn:hover{
  border-color: var(--neon);
  color: var(--neon);
}
.page-faq .faq-picker__btn:focus-visible{
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}
.page-faq .faq-picker__btn[aria-pressed="true"]{
  background: var(--flame);
  border-color: var(--flame);
  color: var(--paper);
}

.page-faq .faq-console{
  margin: 0;
  border: 1px solid var(--faq-line-dark);
  background: rgba(20,24,26,0.62);
  padding: clamp(14px,2.4vw,22px);
  position: relative;
}
.page-faq .faq-console::before,
.page-faq .faq-console::after{
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 1px solid var(--flame);
}
.page-faq .faq-console::before{ top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.page-faq .faq-console::after{ bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.page-faq .faq-console__frame{
  overflow: hidden;
  border: 1px solid rgba(201,194,182,0.22);
  background: var(--carbon);
}
.page-faq .faq-console__frame img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-faq .faq-console__caption{
  margin: 18px 0 10px;
  font-size: var(--fz-12);
  letter-spacing: 0.18em;
  color: var(--neon);
}

.page-faq .faq-progress{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}
.page-faq .faq-progress__item{
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(201,194,182,0.2);
}
.page-faq .faq-progress__num{
  font-family: var(--font-mono);
  font-size: var(--fz-14);
  color: var(--flame);
}
.page-faq .faq-progress__text{
  font-size: var(--fz-14);
  color: rgba(255,249,239,0.86);
}
.page-faq .faq-progress__dot{
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 4px rgba(54,240,192,0.16);
}
.page-faq .media__caption{
  display: block;
  margin: 12px 0 0;
  font-size: var(--fz-12);
  line-height: 1.7;
  color: rgba(201,194,182,0.78);
}

/* ---------- 章节通用头 ---------- */
.page-faq .faq-sechead{ margin-bottom: clamp(22px,3.4vw,34px); }
.page-faq .faq-sechead__label{
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fz-12);
  letter-spacing: 0.2em;
  color: var(--flame);
}
.page-faq .faq-sechead__title{
  margin: 0 0 14px;
  font-size: clamp(1.5rem, 3.6vw, 2.4rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.03em;
  color: var(--ink);
  max-width: 22ch;
}
.page-faq .faq-sechead__note{
  margin: 0;
  max-width: 46ch;
  font-size: var(--fz-16);
  line-height: 1.8;
  color: rgba(36,28,22,0.72);
}

/* ---------- 第 01 章 步骤 ---------- */
.page-faq .faq-steps{
  padding: clamp(40px,6vw,78px) 0;
  background:
    repeating-linear-gradient(0deg, var(--faq-line) 0 1px, transparent 1px 120px),
    var(--cream);
}
.page-faq .faq-steplist{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-faq .faq-step{
  background: var(--paper);
  border: 1px solid var(--faq-line);
  border-left: 5px solid var(--flame);
}
.page-faq .faq-step[hidden]{ display: none; }

.page-faq .faq-step__summary{
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
  transition: background 0.18s ease;
}
.page-faq .faq-step__summary::-webkit-details-marker{ display: none; }
.page-faq .faq-step__summary:hover{ background: var(--faq-soft); }
.page-faq .faq-step__summary:focus-visible{
  outline: 2px solid var(--steel);
  outline-offset: -2px;
}
.page-faq .faq-step__summary::after{
  content: "+";
  font-family: var(--font-mono);
  font-size: var(--fz-20);
  line-height: 1;
  color: var(--steel);
}
.page-faq .faq-step__box[open] .faq-step__summary::after{ content: "–"; }
.page-faq .faq-step__num{
  font-family: var(--font-mono);
  font-size: var(--fz-20);
  line-height: 1;
  color: var(--flame);
}
.page-faq .faq-step__title{
  font-size: var(--fz-16);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.4;
  color: var(--ink);
}
.page-faq .faq-step__body{
  padding: 4px 16px 18px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-tick{
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-faq .faq-tick li{
  position: relative;
  padding-left: 22px;
  font-size: var(--fz-14);
  line-height: 1.8;
  color: rgba(36,28,22,0.82);
}
.page-faq .faq-tick li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  background: var(--steel);
}

/* ---------- 第 02 章 平板兼容 ---------- */
.page-faq .faq-compat{
  padding: clamp(40px,6vw,78px) 0;
  background: var(--cream);
  border-top: 1px solid var(--faq-line);
}
.page-faq .faq-compat__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px,4vw,52px);
  align-items: start;
  min-width: 0;
}
.page-faq .faq-compat__grid > *{ min-width: 0; }
.page-faq .faq-compat__lead{
  margin: 0;
  max-width: 48ch;
  font-size: var(--fz-16);
  line-height: 1.8;
  color: rgba(36,28,22,0.78);
}
.page-faq .faq-compat__list{
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.page-faq .faq-compat__item{
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--faq-line);
}
.page-faq .faq-compat__item:last-child{ border-bottom: 1px solid var(--faq-line); }
.page-faq .faq-compat__dot{
  width: 10px;
  height: 10px;
  margin-top: 8px;
  background: var(--flame);
}
.page-faq .faq-compat__topic{
  margin: 0 0 6px;
  font-size: var(--fz-16);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-faq .faq-compat__desc{
  margin: 0;
  font-size: var(--fz-14);
  line-height: 1.8;
  color: rgba(36,28,22,0.74);
}
.page-faq .faq-compat__foot{
  margin: 22px 0 0;
  padding: 14px 16px;
  background: var(--paper);
  border-left: 4px solid var(--steel);
  font-size: var(--fz-14);
  line-height: 1.8;
  color: rgba(36,28,22,0.8);
}
.page-faq .faq-compat__fig{
  margin: 0;
  padding: 10px;
  background: var(--paper);
  border: 1px solid var(--faq-line);
}
.page-faq .faq-compat__fig img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}
.page-faq .faq-compat__fig .media__caption{ color: rgba(36,28,22,0.6); }

/* ---------- 第 03 章 榜单入口 ---------- */
.page-faq .faq-board{
  position: relative;
  padding: clamp(40px,6vw,78px) 0;
  color: var(--paper);
  background:
    linear-gradient(115deg, rgba(47,111,106,0.5) 0%, transparent 46%),
    var(--carbon);
  border-top: 4px solid var(--flame);
}
.page-faq .faq-board__label{
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fz-12);
  letter-spacing: 0.2em;
  color: var(--neon);
}
.page-faq .faq-board__title{
  margin: 0 0 16px;
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.03em;
  color: var(--paper);
  max-width: 20ch;
}
.page-faq .faq-board__lead{
  margin: 0;
  max-width: 52ch;
  font-size: var(--fz-16);
  line-height: 1.8;
  color: rgba(255,249,239,0.78);
}
.page-faq .faq-path{
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: clamp(22px,3.4vw,34px) 0;
  padding: 0;
}
.page-faq .faq-path__node{
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: var(--fz-14);
  color: rgba(255,249,239,0.9);
  background: rgba(11,43,42,0.72);
  border: 1px solid var(--faq-line-dark);
}
.page-faq .faq-path__node--accent{
  color: var(--paper);
  background: rgba(230,74,46,0.18);
  border-color: var(--flame);
}
.page-faq .faq-path__arrow{
  color: var(--neon);
  font-size: var(--fz-14);
  line-height: 1;
}
.page-faq .faq-board__facts{
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--faq-line-dark);
}
.page-faq .faq-board__fact{
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 14px 0;
  border-bottom: 1px solid var(--faq-line-dark);
}
.page-faq .faq-board__num{
  font-family: var(--font-mono);
  font-size: var(--fz-28);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--signal);
  min-width: 6ch;
}
.page-faq .faq-board__cap{
  font-size: var(--fz-14);
  line-height: 1.6;
  color: rgba(255,249,239,0.76);
}
.page-faq .faq-board__link{
  margin: 22px 0 0;
  font-size: var(--fz-14);
  line-height: 1.8;
  color: rgba(255,249,239,0.76);
}
.page-faq .faq-board__link a{
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid var(--neon);
}
.page-faq .faq-board__link a:hover{ color: var(--paper); border-bottom-color: var(--paper); }

/* ---------- 第 04 章 清单 ---------- */
.page-faq .faq-checks{
  padding: clamp(40px,6vw,78px) 0;
  background: var(--cream);
}
.page-faq .faq-checks__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px,3.6vw,46px);
  align-items: start;
  min-width: 0;
}
.page-faq .faq-checks__grid > *{ min-width: 0; }
.page-faq .faq-checks__tip{
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line);
  font-size: var(--fz-14);
  line-height: 1.8;
  color: rgba(36,28,22,0.7);
}
.page-faq .faq-checks__tip a{
  color: var(--flame);
  text-decoration: none;
  border-bottom: 1px solid var(--flame);
}
.page-faq .faq-checks__tip a:hover{ color: var(--ink); border-bottom-color: var(--ink); }

.page-faq .faq-checklist{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.page-faq .faq-check{
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--faq-line);
}
.page-faq .faq-check:first-child{ border-top: 1px solid var(--faq-line); }
.page-faq .faq-check__num{
  font-family: var(--font-mono);
  font-size: var(--fz-14);
  line-height: 1.5;
  color: var(--steel);
}
.page-faq .faq-check__title{
  margin: 0 0 5px;
  font-size: var(--fz-16);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.4;
  color: var(--ink);
}
.page-faq .faq-check__text{
  margin: 0;
  font-size: var(--fz-14);
  line-height: 1.8;
  color: rgba(36,28,22,0.72);
}
.page-faq .faq-check__light{
  width: 10px;
  height: 10px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(242,181,68,0.22);
}

/* ---------- 人工支持 ---------- */
.page-faq .faq-support{
  padding: clamp(40px,6vw,78px) 0;
  background:
    repeating-linear-gradient(90deg, rgba(201,194,182,0.07) 0 1px, transparent 1px 88px),
    var(--forest);
  color: var(--paper);
  border-top: 5px solid var(--flame);
}
.page-faq .faq-support__inner{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px,4vw,52px);
  align-items: start;
  min-width: 0;
}
.page-faq .faq-support__inner > *{ min-width: 0; }
.page-faq .faq-support__label{
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fz-12);
  letter-spacing: 0.2em;
  color: var(--neon);
}
.page-faq .faq-support__title{
  margin: 0 0 16px;
  font-size: clamp(1.5rem, 4vw, 2.3rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.03em;
  color: var(--paper);
  max-width: 20ch;
}
.page-faq .faq-support__lead{
  margin: 0 0 14px;
  max-width: 46ch;
  font-size: var(--fz-16);
  line-height: 1.8;
  color: rgba(255,249,239,0.8);
}
.page-faq .faq-support__note{
  margin: 16px 0 0;
  font-size: var(--fz-14);
  line-height: 1.8;
  color: rgba(201,194,182,0.8);
}
.page-faq .faq-support__note a{
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid var(--neon);
}
.page-faq .faq-support__note a:hover{ color: var(--paper); border-bottom-color: var(--paper); }

.page-faq .faq-support__contact{
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--faq-line-dark);
}
.page-faq .faq-support__row{
  padding: 14px 0;
  border-bottom: 1px solid var(--faq-line-dark);
}
.page-faq .faq-support__key{
  font-size: var(--fz-12);
  letter-spacing: 0.16em;
  color: var(--neon);
  margin-bottom: 6px;
}
.page-faq .faq-support__value{
  margin: 0;
  font-size: var(--fz-16);
  line-height: 1.7;
  color: var(--paper);
}
.page-faq .faq-support__value--mono{
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
  word-break: break-word;
}

/* ---------- 断点 ---------- */
@media (min-width: 760px){
  .page-faq .faq-steplist{ gap: 14px; }
  .page-faq .faq-step__summary{ padding: 18px 22px; }
  .page-faq .faq-step__body{ padding: 6px 22px 22px; }
  .page-faq .faq-board__facts{ grid-template-columns: repeat(3, minmax(0,1fr)); }
  .page-faq .faq-board__fact{
    border-bottom: 0;
    border-right: 1px solid var(--faq-line-dark);
    padding: 18px 18px 18px 0;
    display: grid;
    align-content: start;
  }
  .page-faq .faq-board__fact:last-child{ border-right: 0; }
}

@media (min-width: 980px){
  .page-faq .faq-hero__grid{
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: start;
  }
  .page-faq .faq-hero__title{ max-width: 14ch; }
  .page-faq .faq-compat__grid{
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }
  .page-faq .faq-checks__grid{
    grid-template-columns: minmax(0, 0.62fr) minmax(0, 1fr);
  }
  .page-faq .faq-checks__aside{
    position: sticky;
    top: 24px;
  }
  .page-faq .faq-support__inner{
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
  .page-faq .faq-steplist{ gap: 16px; }
}