.page-faq {
  background: var(--wd-black);
  color: var(--wd-gray-200);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--wd-green);
  font-size: 1.06em;
  letter-spacing: 0.01em;
}

.page-faq .faq-inline-link {
  color: var(--wd-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-inline-link:hover {
  color: var(--wd-white);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(24px, 5vw, 48px) 0 clamp(26px, 4vw, 42px);
  background:
    radial-gradient(130% 130% at 86% 0%, rgba(224, 27, 47, 0.3) 0%, rgba(224, 27, 47, 0) 58%),
    linear-gradient(180deg, #0B0C0E 0%, #0B0C0E 72%, #101216 100%);
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(215, 218, 224, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(215, 218, 224, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), rgba(0, 0, 0, 0));
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), rgba(0, 0, 0, 0));
  pointer-events: none;
}

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

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 22px;
}

.page-faq .faq-kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--wd-green);
}

.page-faq .faq-title {
  margin: 16px 0 20px;
  max-width: 20ch;
  font-size: clamp(2.05rem, 6.6vw, 4.4rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  font-weight: 900;
  color: var(--wd-white);
}

.page-faq .faq-lead {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(0.98rem, 1.6vw, 1.12rem);
  line-height: 1.78;
  color: var(--text-mid);
}

/* ---------- 任务卡片 ---------- */

.page-faq .faq-tasks-section {
  padding: clamp(30px, 5vw, 58px) 0 clamp(36px, 6vw, 68px);
  background: var(--wd-black);
}

.page-faq .faq-tasks-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 24px;
  margin-bottom: 22px;
}

.page-faq .faq-tasks-head h2 {
  margin: 0;
  font-size: clamp(1.2rem, 2.6vw, 1.7rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--wd-white);
}

.page-faq .faq-tasks-note {
  margin: 0;
  font-size: 13px;
  color: var(--text-dim);
}

.page-faq .faq-band {
  position: relative;
  margin: 0 0 26px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background: var(--wd-gray-900);
}

.page-faq .faq-band img {
  display: block;
  width: 100%;
  height: clamp(170px, 30vw, 320px);
  object-fit: cover;
}

.page-faq .faq-band__cap {
  position: absolute;
  left: 14px;
  bottom: 14px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 16px;
  border-radius: var(--r-pill);
  background: rgba(11, 12, 14, 0.72);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line-strong);
  font-size: 12.5px;
  color: var(--wd-gray-200);
}

.page-faq .faq-band__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--wd-amber);
  box-shadow: 0 0 0 4px rgba(255, 176, 32, 0.18);
}

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

.page-faq .faq-task {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 18px;
  border-radius: var(--r-md);
  background: var(--wd-gray-900);
  border: 1px solid var(--line-dark);
  color: inherit;
  text-decoration: none;
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), background 0.28s var(--ease);
}

.page-faq .faq-task:hover,
.page-faq .faq-task:focus-visible {
  transform: translateY(-4px);
  border-color: var(--wd-blue);
  background: #1B1E23;
}

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

.page-faq .faq-task__num {
  font-size: 12px;
  letter-spacing: 0.18em;
  font-weight: 700;
  color: var(--wd-red);
}

.page-faq .faq-task .tag {
  align-self: flex-start;
}

.page-faq .faq-task__title {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--wd-white);
  line-height: 1.35;
}

.page-faq .faq-task__desc {
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-faq .faq-task__go {
  margin-top: auto;
  padding-top: 6px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--wd-green);
}

/* ---------- 问答分组 ---------- */

.page-faq .faq-group {
  padding: clamp(34px, 5.5vw, 66px) 0;
  border-top: 1px solid var(--line-dark);
  scroll-margin-top: 96px;
}

.page-faq .faq-group__head {
  margin-bottom: 20px;
}

.page-faq .faq-group__head .section__index {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--wd-red);
}

.page-faq .faq-group__title {
  margin: 0;
  max-width: 24ch;
  font-size: clamp(1.35rem, 3.4vw, 2.15rem);
  line-height: 1.18;
  letter-spacing: -0.025em;
  font-weight: 800;
  color: var(--wd-white);
}

.page-faq .faq-list {
  border-top: 1px solid var(--line-dark);
}

.page-faq .qa {
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .qa__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 19px 40px 19px 14px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(0.98rem, 1.7vw, 1.06rem);
  font-weight: 700;
  line-height: 1.58;
  color: var(--wd-white);
  border-radius: 4px;
  transition: color 0.24s var(--ease), background 0.24s var(--ease);
}

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

.page-faq .qa__q::marker {
  content: "";
}

.page-faq .qa__q::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 50%;
  width: 10px;
  height: 10px;
  margin-top: -7px;
  border-right: 2px solid var(--text-dim);
  border-bottom: 2px solid var(--text-dim);
  transform: rotate(45deg);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  transform: rotate(-135deg);
  border-color: var(--wd-green);
}

.page-faq .qa__q:hover {
  color: var(--wd-blue);
  background: rgba(47, 155, 255, 0.05);
}

.page-faq .qa__q:hover::after {
  border-color: var(--wd-blue);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--wd-blue);
  outline-offset: 3px;
}

.page-faq .qa[open] .qa__q {
  color: var(--wd-green);
}

.page-faq .qa[open] .qa__q:hover {
  color: var(--wd-green);
}

.page-faq .qa__num {
  flex: none;
  min-width: 30px;
  padding-top: 4px;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--wd-gray-600);
}

.page-faq .qa[open] .qa__num {
  color: var(--wd-red);
}

.page-faq .qa__a {
  position: relative;
  padding: 2px 14px 22px 44px;
}

.page-faq .qa__a::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 4px;
  bottom: 24px;
  width: 3px;
  border-radius: 2px;
  background: var(--line-dark);
  transition: background 0.3s var(--ease);
}

.page-faq .qa[open] .qa__a::before {
  background: var(--wd-green);
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--text-mid);
}

/* ---------- 比赛中：图文分栏 ---------- */

.page-faq .faq-group__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-faq .faq-side {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background: var(--wd-gray-900);
}

.page-faq .faq-side img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 340px;
  object-fit: cover;
}

/* ---------- 反馈收束带 ---------- */

.page-faq .faq-group--support {
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-faq .faq-support {
  display: grid;
  gap: 24px;
  padding: clamp(26px, 5vw, 46px);
  border-radius: var(--r-lg);
  background:
    radial-gradient(120% 140% at 12% 0%, rgba(255, 255, 255, 0.18) 0%, rgba(255, 255, 255, 0) 55%),
    linear-gradient(135deg, #E01B2F 0%, #A80E1E 100%);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: var(--shadow-glass);
}

.page-faq .faq-support__copy .section__index {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.78);
}

.page-faq .faq-support .faq-group__title {
  color: var(--wd-white);
  max-width: 22ch;
}

.page-faq .faq-support__copy p {
  margin: 12px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.86);
}

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

.page-faq .faq-support__list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--r-sm);
  background: rgba(11, 12, 14, 0.26);
  border: 1px solid rgba(255, 255, 255, 0.16);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--wd-white);
}

.page-faq .faq-support__idx {
  flex: none;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--wd-green);
  padding-top: 3px;
}

.page-faq .faq-support__btn {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--r-pill);
  background: var(--wd-white);
  color: var(--wd-red-deep);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: transform 0.24s var(--ease), background 0.24s var(--ease);
}

.page-faq .faq-support__btn:hover,
.page-faq .faq-support__btn:focus-visible {
  transform: translateY(-3px);
  background: #FFE9EC;
}

.page-faq .faq-support__btn:focus-visible {
  outline: 2px solid var(--wd-white);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-title {
    max-width: 18ch;
  }

  .page-faq .faq-tasks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
    gap: 16px;
  }

  .page-faq .faq-task:nth-child(2) {
    margin-top: 38px;
  }

  .page-faq .faq-task:nth-child(4) {
    margin-top: 38px;
  }

  .page-faq .faq-side img {
    max-height: 420px;
  }

  .page-faq .faq-support {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-areas:
      "copy list"
      "btn  list";
    align-items: start;
    gap: 26px 36px;
  }

  .page-faq .faq-support__copy {
    grid-area: copy;
  }

  .page-faq .faq-support__list {
    grid-area: list;
  }

  .page-faq .faq-support__btn {
    grid-area: btn;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-tasks {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-task {
    min-height: 232px;
  }

  .page-faq .faq-task:nth-child(1) {
    margin-top: 0;
  }

  .page-faq .faq-task:nth-child(2) {
    margin-top: 30px;
  }

  .page-faq .faq-task:nth-child(3) {
    margin-top: 60px;
  }

  .page-faq .faq-task:nth-child(4) {
    margin-top: 90px;
  }

  .page-faq .faq-group__split {
    grid-template-columns: minmax(0, 1fr) minmax(220px, 320px);
    align-items: start;
    gap: 44px;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-side img {
    max-height: none;
    height: auto;
  }

  .page-faq .faq-group__title {
    max-width: 28ch;
  }

  .page-faq .faq-support {
    padding: clamp(36px, 4vw, 54px);
    gap: 30px 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-task,
  .page-faq .faq-support__btn,
  .page-faq .qa__q::after,
  .page-faq .qa__a::before {
    transition: none;
  }
}