.page-faq {
  --faq-card: rgba(20, 27, 33, 0.72);
  --faq-card-strong: rgba(20, 27, 33, 0.94);
  --faq-hair: rgba(244, 239, 230, 0.12);
  display: block;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  overflow-x: clip;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  font-family: var(--font-sans);
  letter-spacing: -0.01em;
}

.page-faq .mono {
  font-family: var(--font-mono);
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(24px, 4vw, 40px) clamp(40px, 6vw, 72px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -180px;
  right: -140px;
  width: min(680px, 92vw);
  height: min(680px, 92vw);
  background: radial-gradient(circle at 55% 45%, rgba(53, 224, 214, 0.16), rgba(53, 224, 214, 0) 64%);
  pointer-events: none;
  z-index: 0;
}

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

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-faq .faq-hero__lead h1 {
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.16;
  font-weight: 700;
  color: var(--warm-white);
  margin: 10px 0 0;
  max-width: 20ch;
}

.page-faq .faq-hero__lead .lede {
  margin-top: 16px;
  max-width: 48ch;
  font-size: clamp(15.5px, 1.7vw, 17.5px);
  line-height: 1.78;
  color: var(--paper-2);
}

.page-faq .faq-hero__lead .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* 搜索面板 */
.page-faq .faq-search {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 28px);
  padding: 12px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--faq-card-strong), rgba(11, 15, 18, 0.92));
  border: 1px solid rgba(53, 224, 214, 0.42);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
}

.page-faq .faq-search__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border-radius: 8px;
  background: var(--cyan-soft);
  color: var(--cyan);
}

.page-faq .faq-search__input {
  flex: 1 1 100%;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--warm-white);
  font-size: 16px;
  line-height: 1.4;
  padding: 10px 2px;
  outline: none;
}

.page-faq .faq-search__input::placeholder {
  color: var(--gray);
}

.page-faq .faq-search__input:focus-visible {
  box-shadow: inset 0 -2px 0 var(--cyan);
}

.page-faq .faq-search__go {
  flex: 1 1 100%;
  justify-content: center;
  text-align: center;
}

@media (min-width: 620px) {
  .page-faq .faq-search {
    flex-wrap: nowrap;
    padding: 8px 8px 8px 16px;
  }
  .page-faq .faq-search__input {
    flex: 1 1 auto;
  }
  .page-faq .faq-search__go {
    flex: 0 0 auto;
  }
}

/* 三步路径 */
.page-faq .faq-steps {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

@media (min-width: 760px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--gap);
  }
}

.page-faq .faq-step {
  display: grid;
  gap: 5px;
  padding: 14px 16px;
  border-left: 2px solid rgba(53, 224, 214, 0.55);
  background: var(--faq-card);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.page-faq .faq-step__num {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .faq-step__title {
  font-size: 15.5px;
  font-weight: 500;
  color: var(--warm-white);
}

.page-faq .faq-step__text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray-soft);
}

.page-faq .faq-hero__media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(53, 224, 214, 0.22);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

@media (min-width: 980px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
  }
}

/* ---------- 验收标准 ---------- */
.page-faq .spec-board {
  background: var(--paper);
  color: #12181D;
  border-radius: var(--radius-lg);
  border-top: 3px solid var(--amber);
  padding: clamp(22px, 3.4vw, 44px);
  box-shadow: var(--shadow-paper);
}

.page-faq .spec-board .section-head p,
.page-faq .spec-board__intro {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: #3C474F;
}

.page-faq .spec-board .section-title {
  color: #10161B;
  font-size: clamp(24px, 3.4vw, 32px);
  line-height: 1.25;
  margin: 8px 0 0;
}

.page-faq .spec-board__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: #A8541B;
}

.page-faq .spec-layout {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
  margin-top: clamp(20px, 3vw, 30px);
}

@media (min-width: 1000px) {
  .page-faq .spec-layout {
    grid-template-columns: minmax(0, 1.62fr) minmax(0, 0.88fr);
    align-items: start;
  }
}

.page-faq .spec-groups {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}

@media (min-width: 720px) {
  .page-faq .spec-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .spec-groups > .spec-group:last-child {
    grid-column: 1 / -1;
  }
  .page-faq .spec-groups > .spec-group:last-child .spec-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 28px;
  }
}

.page-faq .spec-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 4px;
  padding-bottom: 10px;
  border-bottom: 2px solid #12181D;
  font-size: 16px;
  font-weight: 700;
  color: #10161B;
}

.page-faq .spec-group__num {
  font-size: 12.5px;
  color: #0E6E68;
}

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

.page-faq .spec-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px dashed rgba(11, 15, 18, 0.18);
}

.page-faq .spec-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border-radius: 3px;
  background: var(--amber);
  color: #2A1704;
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1;
}

.page-faq .spec-name {
  display: block;
  font-size: 15px;
  font-weight: 500;
  color: #10161B;
}

.page-faq .spec-how {
  display: block;
  margin-top: 3px;
  font-size: 14.5px;
  line-height: 1.72;
  color: #3C474F;
}

.page-faq .spec-side {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .spec-side .media-frame {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(11, 15, 18, 0.14);
}

.page-faq .spec-side .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .spec-side .media-caption {
  background: var(--paper-2);
  color: #3C474F;
  font-size: 13px;
}

.page-faq .spec-side .note {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: #26424A;
  padding: 12px 14px;
  background: rgba(242, 160, 61, 0.16);
  border-left: 3px solid var(--amber);
}

.page-faq .spec-side .note--data {
  background: rgba(14, 110, 104, 0.12);
  border-left-color: #0E6E68;
  color: #0E3B3A;
}

/* ---------- 培训分层 ---------- */
.page-faq .kit-intro {
  margin: 12px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper-2);
}

.page-faq .kit-panel {
  margin-top: clamp(20px, 3vw, 30px);
  padding: clamp(18px, 3vw, 34px);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--teal-ink), #08201F 72%);
  border: 1px solid rgba(53, 224, 214, 0.2);
}

.page-faq .tablist {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.page-faq .tab {
  flex: 0 0 auto;
  padding: 10px 17px;
  border-radius: 999px;
  border: 1px solid rgba(244, 239, 230, 0.22);
  background: transparent;
  color: var(--paper-2);
  font-family: var(--font-sans);
  font-size: 14.5px;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .tab:hover {
  border-color: rgba(53, 224, 214, 0.6);
  color: var(--warm-white);
}

.page-faq .tab[aria-selected="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #05201F;
  font-weight: 500;
}

.page-faq .tab:focus-visible,
.page-faq .chip:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-faq .tabpanel {
  margin-top: 20px;
  color: var(--paper);
}

.page-faq .tabpanel[hidden] {
  display: none;
}

.page-faq .kit-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13.5px;
  color: var(--cyan);
}

.page-faq .kit-h3 {
  margin: 16px 0 10px;
  font-size: 16px;
  font-weight: 500;
  color: var(--warm-white);
}

.page-faq .kit-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

@media (min-width: 720px) {
  .page-faq .kit-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 28px;
  }
}

.page-faq .kit-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper-2);
}

.page-faq .kit-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  border: 1.5px solid var(--cyan);
  border-radius: 2px;
}

.page-faq .kit-out {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(244, 239, 230, 0.14);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--amber);
}

/* ---------- 常见问题 ---------- */
.page-faq .faq-intro {
  margin: 12px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper-2);
}

.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-faq .chip {
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px solid var(--faq-hair);
  background: var(--faq-card);
  color: var(--paper-2);
  font-family: var(--font-sans);
  font-size: 14px;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .chip:hover {
  border-color: rgba(53, 224, 214, 0.55);
  color: var(--warm-white);
}

.page-faq .chip[aria-pressed="true"] {
  background: var(--cyan-soft);
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-faq .faq-items {
  margin-top: clamp(18px, 2.6vw, 26px);
  display: grid;
  gap: 10px;
}

@media (min-width: 1000px) {
  .page-faq .faq-items {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 20px;
    align-items: start;
  }
}

.page-faq .faq-item {
  border: 1px solid var(--faq-hair);
  border-left: 3px solid rgba(53, 224, 214, 0.35);
  border-radius: var(--radius);
  background: var(--faq-card);
  overflow: hidden;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-item[open] {
  background: var(--faq-card-strong);
  border-left-color: var(--cyan);
}

.page-faq .faq-item[hidden] {
  display: none;
}

.page-faq .faq-q {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

.page-faq .faq-qtext {
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.62;
  color: var(--warm-white);
}

.page-faq .faq-a {
  padding: 0 16px 16px 40px;
}

.page-faq .faq-a p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--paper-2);
}

.page-faq .faq-anchor {
  display: inline-block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--gray-soft);
  text-decoration: none;
  border-bottom: 1px dotted currentColor;
}

.page-faq .faq-anchor:hover {
  color: var(--amber);
}

/* ---------- 延伸入口 ---------- */
.page-faq .faq-more .section-title {
  color: var(--warm-white);
}

.page-faq .faq-more .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

@media (max-width: 480px) {
  .page-faq .faq-a {
    padding-left: 16px;
  }
  .page-faq .faq-hero__lead h1 {
    max-width: none;
  }
}