/* ==========================================================
   选型指南（/guide/）页面专属样式
   作用域：.page-faq
   ========================================================== */

.page-faq {
  --faq-hairline: var(--ink-12);
  --faq-card: var(--limestone);
  --faq-radius: 18px;
  display: block;
  background: var(--rock-white);
  color: var(--ink);
  padding-bottom: clamp(40px, 6vw, 80px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: clamp(104px, 15vw, 176px) 0 clamp(36px, 5vw, 64px);
}

.page-faq .faq-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 clamp(28px, 4vw, 48px);
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .faq-crumbs li + li::before {
  content: "/";
  margin-right: 10px;
  color: var(--ink-45);
}

.page-faq .faq-crumbs a {
  color: var(--slate);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease);
}

.page-faq .faq-crumbs a:hover,
.page-faq .faq-crumbs a:focus-visible {
  color: var(--turquoise-bright);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 64px);
}

.page-faq .faq-hero-title {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  font-size: clamp(32px, 6.4vw, 64px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.022em;
  color: var(--ink);
}

.page-faq .faq-hero-lead {
  max-width: 40ch;
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  font-size: clamp(16px, 1.7vw, 18px);
  line-height: 1.85;
  color: var(--ink-80);
}

.page-faq .faq-hero-note {
  margin: 0;
  max-width: 38ch;
  padding-left: 16px;
  border-left: 2px solid var(--gold);
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-hero-index {
  align-self: end;
  padding-left: clamp(16px, 2.4vw, 26px);
  border-left: 2px solid var(--gold);
}

.page-faq .faq-index-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--slate);
}

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

.page-faq .faq-index-list a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid var(--ink-06);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.5;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease), padding-left var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  padding-left: 6px;
  color: var(--turquoise-deep);
  border-bottom-color: var(--turquoise-bright);
}

.page-faq .faq-index-list .mono {
  flex: none;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gold);
}

/* ---------- 分组手风琴 ---------- */

.page-faq .faq-body {
  padding: clamp(20px, 4vw, 40px) 0 0;
}

.page-faq .faq-group {
  scroll-margin-top: 130px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(48px, 8vw, 112px);
}

.page-faq .faq-details {
  display: block;
}

.page-faq .faq-summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: clamp(14px, 2.4vw, 26px);
  padding-top: clamp(20px, 3vw, 32px);
  border-top: 1px solid var(--faq-hairline);
  cursor: pointer;
  list-style: none;
  transition: border-color var(--dur-mid) var(--ease);
}

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

.page-faq .faq-summary:hover,
.page-faq .faq-summary:focus-visible {
  border-top-color: var(--gold);
}

.page-faq .faq-summary:focus-visible {
  outline: 2px solid var(--turquoise-bright);
  outline-offset: 6px;
}

.page-faq .faq-badge {
  flex: none;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--turquoise-deep);
  color: var(--gold);
  font-size: 14px;
  letter-spacing: .06em;
  box-shadow: inset 0 0 0 1px rgba(201, 162, 39, .5);
}

.page-faq .faq-heading {
  display: block;
  min-width: 0;
}

.page-faq .faq-title {
  display: block;
  font-size: clamp(20px, 2.7vw, 30px);
  font-weight: 800;
  line-height: 1.26;
  letter-spacing: -0.016em;
  color: var(--ink);
}

.page-faq .faq-sub {
  display: block;
  margin-top: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-faq .faq-toggle {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 14px;
}

.page-faq .faq-toggle::before,
.page-faq .faq-toggle::after {
  content: "";
  position: absolute;
  background: var(--ink-45);
  transition: transform var(--dur-mid) var(--ease), background var(--dur-mid) var(--ease);
}

.page-faq .faq-toggle::before {
  top: 8px;
  left: 0;
  width: 18px;
  height: 2px;
}

.page-faq .faq-toggle::after {
  top: 0;
  left: 8px;
  width: 2px;
  height: 18px;
}

.page-faq .faq-details[open] .faq-toggle::before {
  background: var(--turquoise-bright);
}

.page-faq .faq-details[open] .faq-toggle::after {
  transform: scaleY(0);
}

.page-faq .faq-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  padding-top: clamp(24px, 3.4vw, 42px);
}

.page-faq .faq-details[open] .faq-panel {
  animation: faq-panel-in .24s var(--ease) both;
}

@keyframes faq-panel-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 左栏问答 ---------- */

.page-faq .faq-qa {
  display: grid;
  gap: clamp(20px, 2.6vw, 28px);
  align-content: start;
}

.page-faq .faq-qa-item {
  padding-left: 16px;
  border-left: 2px solid var(--gold);
}

.page-faq .faq-q {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .faq-a {
  margin: 0;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.88;
  color: var(--ink-70);
}

.page-faq .faq-a a,
.page-faq .ask-note a,
.page-faq .faq-inline-link a {
  color: var(--turquoise-deep);
  text-decoration: underline;
  text-decoration-color: var(--turquoise-bright);
  text-underline-offset: 3px;
  transition: color var(--dur-fast) var(--ease);
}

.page-faq .faq-a a:hover,
.page-faq .ask-note a:hover,
.page-faq .faq-inline-link a:hover,
.page-faq .faq-a a:focus-visible,
.page-faq .ask-note a:focus-visible,
.page-faq .faq-inline-link a:focus-visible {
  color: var(--tibetan-red);
}

.page-faq .faq-jump {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--turquoise-bright);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--turquoise-deep);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}

.page-faq .faq-jump::after {
  content: "→";
  font-family: var(--font-mono);
}

.page-faq .faq-jump:hover,
.page-faq .faq-jump:focus-visible {
  color: var(--tibetan-red);
  border-bottom-color: var(--tibetan-red);
  transform: translateX(3px);
}

/* ---------- 右栏视觉 ---------- */

.page-faq .faq-visual {
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
  align-content: start;
}

.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--faq-radius);
  object-fit: cover;
  background: var(--limestone);
}

/* 编号三段结构 */

.page-faq .code-strip {
  display: grid;
  gap: 10px;
}

.page-faq .code-seg {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--slate);
  background: var(--faq-card);
  transition: transform var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-faq .code-seg:hover,
.page-faq .code-seg:focus-visible {
  transform: translateY(-2px);
  background: #FBF8F1;
  outline: none;
}

.page-faq .code-seg:focus-visible {
  outline: 2px solid var(--turquoise-bright);
  outline-offset: 2px;
}

.page-faq .code-seg-digits {
  flex: none;
  font-size: 20px;
  letter-spacing: .14em;
  color: var(--ink);
}

.page-faq .code-seg-body {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.page-faq .code-seg-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--ink);
}

.page-faq .code-seg-note {
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate);
}

.page-faq .code-seg--family {
  border-left-color: var(--turquoise-deep);
}

.page-faq .code-seg--family:hover,
.page-faq .code-seg--family:focus-visible {
  background: rgba(14, 91, 82, .1);
}

.page-faq .code-seg--tier {
  border-left-color: var(--prayer-blue);
}

.page-faq .code-seg--tier:hover,
.page-faq .code-seg--tier:focus-visible {
  background: rgba(44, 110, 143, .1);
}

.page-faq .code-seg--batch {
  border-left-color: var(--amber);
}

.page-faq .code-seg--batch:hover,
.page-faq .code-seg--batch:focus-visible {
  background: rgba(224, 122, 47, .12);
}

/* 起订与供应 */

.page-faq .moq-panel {
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--faq-radius);
  background: var(--ink);
  color: var(--rock-white);
}

.page-faq .moq-big {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 12px;
}

.page-faq .moq-num {
  font-size: clamp(52px, 8vw, 76px);
  font-weight: 700;
  line-height: .95;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.page-faq .moq-unit {
  font-size: 16px;
  letter-spacing: .08em;
  color: var(--light-80);
}

.page-faq .moq-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--light-80);
}

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

.page-faq .moq-tags li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: var(--faq-card);
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-70);
}

.page-faq .moq-tags .mono {
  flex: none;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--turquoise-deep);
}

/* 交期工序 */

.page-faq .lead-bar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .lead-seg {
  display: grid;
  gap: 8px;
  padding: 18px 20px;
  border-radius: var(--faq-radius);
  color: var(--rock-white);
}

.page-faq .lead-seg--mold {
  background: var(--turquoise-deep);
}

.page-faq .lead-seg--assemble {
  background: var(--prayer-blue);
}

.page-faq .lead-seg-name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-faq .lead-seg-meta {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--light-80);
}

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

.page-faq .lead-tags li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: var(--faq-card);
}

.page-faq .lead-num {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--tibetan-red);
}

.page-faq .lead-tag-text {
  font-size: 13px;
  color: var(--ink-70);
}

.page-faq .lead-tag-desc {
  font-size: 13px;
  color: var(--slate);
}

.page-faq .faq-inline-link {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

/* 保修对照 */

.page-faq .warranty-switch {
  position: relative;
}

.page-faq .warranty-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-faq .warranty-tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px;
  margin-bottom: 16px;
  border-radius: var(--radius-pill);
  background: var(--limestone);
}

.page-faq .warranty-tab {
  cursor: pointer;
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--slate);
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.page-faq .warranty-tab:hover {
  color: var(--turquoise-deep);
}

.page-faq #w-view-two:checked ~ .warranty-tabs label[for="w-view-two"],
.page-faq #w-view-three:checked ~ .warranty-tabs label[for="w-view-three"] {
  background: var(--turquoise-deep);
  color: var(--rock-white);
}

.page-faq #w-view-two:focus-visible ~ .warranty-tabs label[for="w-view-two"],
.page-faq #w-view-three:focus-visible ~ .warranty-tabs label[for="w-view-three"] {
  outline: 2px solid var(--turquoise-bright);
  outline-offset: 2px;
}

.page-faq .warranty-panels {
  display: block;
}

.page-faq .warranty-panel {
  display: none;
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--faq-radius);
  border-left: 5px solid var(--turquoise-deep);
  background: var(--faq-card);
}

.page-faq #w-view-two:checked ~ .warranty-panels .warranty-panel--two {
  display: block;
  animation: faq-panel-in .22s var(--ease) both;
}

.page-faq #w-view-three:checked ~ .warranty-panels .warranty-panel--three {
  display: block;
  animation: faq-panel-in .22s var(--ease) both;
}

.page-faq .warranty-panel--three {
  border-left-color: var(--tibetan-red);
}

.page-faq .warranty-years {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 0 0 10px;
  font-size: clamp(46px, 7.5vw, 80px);
  font-weight: 700;
  line-height: .95;
  letter-spacing: -0.02em;
  color: var(--turquoise-deep);
}

.page-faq .warranty-panel--three .warranty-years {
  color: var(--tibetan-red);
}

.page-faq .warranty-unit {
  font-size: 16px;
  letter-spacing: .1em;
  color: var(--slate);
}

.page-faq .warranty-families {
  margin: 0 0 8px;
  font-size: 15px;
  letter-spacing: .14em;
  color: var(--ink);
}

.page-faq .warranty-desc {
  margin: 0;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-70);
}

/* 询价前准备 */

.page-faq .prep-list {
  display: grid;
  gap: clamp(16px, 2.4vw, 22px);
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-faq .prep-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
  padding-left: 16px;
  border-left: 2px solid var(--gold);
}

.page-faq .prep-num {
  flex: none;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--gold);
  padding-top: 3px;
}

.page-faq .prep-body {
  min-width: 0;
}

.page-faq .prep-title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .prep-text {
  margin: 0;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-70);
}

.page-faq .ask-card {
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--faq-radius);
  background: var(--ink);
  color: var(--rock-white);
}

.page-faq .ask-eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-faq .ask-mail {
  margin: 0 0 14px;
  font-size: clamp(14px, 1.6vw, 16px);
  letter-spacing: .02em;
  word-break: break-all;
  color: var(--rock-white);
}

.page-faq .ask-text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--light-80);
}

.page-faq .ask-note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--light-14);
  font-size: 13px;
  line-height: 1.8;
  color: var(--light-55);
}

.page-faq .ask-note a {
  color: var(--gold);
  text-decoration-color: var(--gold);
}

/* ---------- 底部询价入口 ---------- */

.page-faq .faq-cta {
  scroll-margin-top: 130px;
  padding: clamp(56px, 9vw, 120px) 0 clamp(24px, 4vw, 48px);
}

.page-faq .faq-cta-inner {
  padding: clamp(28px, 5vw, 56px);
  border-radius: var(--radius-lg);
  background: linear-gradient(140deg, var(--turquoise-deep) 0%, #0A4A43 62%, var(--ink) 100%);
  color: var(--rock-white);
  box-shadow: var(--shadow-float);
}

.page-faq .faq-cta-inner .eyebrow {
  color: var(--gold);
}

.page-faq .faq-cta-title {
  margin: 0 0 14px;
  max-width: 24ch;
  font-size: clamp(24px, 3.6vw, 40px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.018em;
}

.page-faq .faq-cta-text {
  margin: 0 0 18px;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--light-80);
}

.page-faq .faq-cta-mail {
  margin: 0 0 clamp(22px, 3vw, 32px);
  font-size: clamp(14px, 1.7vw, 17px);
  letter-spacing: .02em;
  word-break: break-all;
  color: var(--gold);
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-faq .lead-bar {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-figure--tall img {
    aspect-ratio: 3 / 2;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(40px, 6vw, 96px);
    align-items: end;
  }

  .page-faq .faq-panel {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-faq .faq-summary {
    grid-template-columns: auto 1fr 24px;
  }

  .page-faq .faq-badge {
    width: 52px;
    height: 52px;
    border-radius: 16px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-panel {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-details[open] .faq-panel,
  .page-faq #w-view-two:checked ~ .warranty-panels .warranty-panel--two,
  .page-faq #w-view-three:checked ~ .warranty-panels .warranty-panel--three {
    animation: none;
  }

  .page-faq .code-seg:hover,
  .page-faq .code-seg:focus-visible,
  .page-faq .faq-jump:hover,
  .page-faq .faq-jump:focus-visible,
  .page-faq .faq-index-list a:hover,
  .page-faq .faq-index-list a:focus-visible {
    transform: none;
  }
}