/* ===== 帮助中心 /help/ —— page-faq ===== */
.page-faq {
  --faq-rule: rgba(201, 242, 74, 0.3);
}

.page-faq [id] {
  scroll-margin-top: 84px;
}

.page-faq .breadcrumb {
  padding-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-intro {
  position: relative;
  padding: clamp(30px, 5vw, 62px) 0 clamp(72px, 9vw, 124px);
  background:
    radial-gradient(130% 92% at 92% -12%, rgba(201, 242, 74, 0.16), transparent 62%),
    linear-gradient(174deg, var(--ink-2) 0%, var(--ink) 74%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 46px), 0 100%);
}

.page-faq .faq-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
}

.page-faq .faq-coord {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--stone);
  text-transform: uppercase;
}

.page-faq .display-1 {
  margin: 0.34em 0 0;
  font-size: clamp(36px, 6.2vw, 76px);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.page-faq .mark {
  font-style: normal;
  color: var(--lime);
}

.page-faq .faq-intro-main .lede {
  max-width: 62ch;
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
  color: rgba(246, 251, 244, 0.84);
}

.page-faq .faq-intro-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: clamp(24px, 3vw, 38px) 0 0;
}

.page-faq .faq-intro-aside {
  align-self: end;
  padding: 20px 20px 18px;
  background: rgba(20, 53, 42, 0.62);
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), 0 100%);
}

.page-faq .aside-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.page-faq .aside-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 4px;
}

.page-faq .aside-list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 9px;
  font-size: 15px;
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .aside-list a .mono {
  font-size: 12px;
  color: var(--stone);
  transition: color var(--dur) var(--ease);
}

.page-faq .aside-list a:hover,
.page-faq .aside-list a:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--faq-rule);
}

.page-faq .aside-list a:hover .mono,
.page-faq .aside-list a:focus-visible .mono {
  color: var(--lime);
}

/* ---------- 章节节奏 ---------- */
.page-faq .section {
  padding-block: clamp(56px, 7.5vw, 116px) 0;
}

.page-faq .section-head {
  max-width: 74ch;
  margin-bottom: clamp(26px, 3.6vw, 48px);
}

.page-faq .section-head .lede {
  margin: 14px 0 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: rgba(246, 251, 244, 0.82);
}

.page-faq .section-head .display-2 {
  margin: 0.2em 0 0;
}

/* ---------- 01 价格 ---------- */
.page-faq .price-media {
  margin: 0 0 clamp(30px, 4vw, 46px);
}

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

.page-faq .price-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-faq .price-col {
  position: relative;
  padding: 26px 22px 30px;
  background: rgba(20, 53, 42, 0.55);
  border: 1px solid var(--line);
  border-top: 2px solid var(--line-lime);
  outline: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), 0 100%);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease), border-top-color var(--dur) var(--ease);
}

.page-faq .price-col:hover,
.page-faq .price-col:focus-visible {
  background: rgba(30, 66, 52, 0.92);
  border-top-color: var(--lime);
  transform: translateY(-6px);
}

.page-faq .price-tier {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--stone);
}

.page-faq .price-value {
  margin: 10px 0 2px;
  font-size: clamp(42px, 6vw, 58px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--lime);
}

.page-faq .price-unit {
  margin-left: 8px;
  font-size: 0.32em;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-faq .price-cycle {
  margin: 0 0 18px;
  padding-bottom: 14px;
  font-size: 13px;
  color: var(--stone);
  border-bottom: 1px dashed var(--line);
}

.page-faq .price-list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .price-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--white);
}

.page-faq .price-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 9px;
  height: 2px;
  background: var(--lime);
}

.page-faq .price-fit {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--amber);
}

.page-faq .price-col:hover .price-fit,
.page-faq .price-col:focus-visible .price-fit {
  color: var(--lime);
}

/* ---------- 02 下载与安装 ---------- */
.page-faq .install-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-faq .install-card {
  padding: 24px 22px 26px;
  background: linear-gradient(158deg, rgba(27, 42, 46, 0.94), rgba(12, 32, 25, 0.94));
  border-left: 3px solid var(--lime);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), 0 100%);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .install-card:hover {
  transform: translateY(-6px);
  background: linear-gradient(158deg, rgba(30, 66, 52, 0.96), rgba(20, 53, 42, 0.96));
}

.page-faq .install-q {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--lime);
}

.page-faq .install-card .display-3 {
  margin: 0 0 12px;
  font-size: clamp(20px, 2.3vw, 26px);
  line-height: 1.25;
}

.page-faq .install-card p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(246, 251, 244, 0.84);
}

.page-faq .install-link {
  margin: 0 !important;
}

.page-faq .install-link a {
  font-size: 14px;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .install-link a:hover,
.page-faq .install-link a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-faq .install-more {
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding-top: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
  border-top: 1px solid var(--line);
}

.page-faq .install-more a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-rule);
}

/* ---------- 03 三步流程 ---------- */
.page-faq .step-track {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-faq .step-item {
  padding: 24px 22px 24px;
  background: rgba(20, 53, 42, 0.42);
  border-top: 1px solid var(--line-lime);
}

.page-faq .step-index {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--lime);
}

.page-faq .step-title {
  margin: 0 0 10px;
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .step-body {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(246, 251, 244, 0.86);
}

.page-faq .step-fail {
  margin: 0;
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--amber);
  background: rgba(27, 42, 46, 0.74);
  border-left: 2px solid var(--amber);
}

/* ---------- 04 收藏与旧入口 ---------- */
.page-faq .saved-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 52px);
}

.page-faq .saved-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-faq .saved-steps li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--white);
  border-bottom: 1px dashed var(--line);
}

.page-faq .saved-steps .mono {
  font-size: 13px;
  color: var(--lime);
}

.page-faq .saved-more {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.page-faq .saved-more a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .saved-visual {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-faq .saved-visual .media-frame {
  margin: 0;
}

.page-faq .save-grid {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .save-card {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 12px;
  font-size: 14px;
  color: var(--stone);
  background: rgba(20, 53, 42, 0.5);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), 0 100%);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .save-card.is-on {
  color: var(--white);
  background: rgba(30, 66, 52, 0.86);
  border-color: var(--line-lime);
}

.page-faq .save-card:hover {
  border-color: var(--lime);
}

.page-faq .save-star {
  flex: none;
  font-size: 14px;
  line-height: 1;
  color: rgba(143, 167, 154, 0.6);
}

.page-faq .save-card.is-on .save-star {
  color: var(--lime);
}

/* ---------- 05 问答 ---------- */
.page-faq .faq-acc {
  display: grid;
  gap: 12px;
}

.page-faq .faq-acc .acc-item {
  background: rgba(20, 53, 42, 0.42);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line-lime);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-acc .acc-item:hover {
  background: rgba(20, 53, 42, 0.68);
}

.page-faq .faq-acc .acc-item[open] {
  background: rgba(30, 66, 52, 0.82);
  border-left-color: var(--lime);
}

.page-faq .faq-acc summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 20px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-acc summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--lime);
}

.page-faq .faq-acc .acc-item[open] summary::after {
  content: "–";
}

.page-faq .faq-acc summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-faq .faq-acc .acc-body {
  padding: 0 20px 18px;
}

.page-faq .faq-acc .acc-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 251, 244, 0.84);
}

/* ---------- 06 联系 ---------- */
.page-faq .contact-panel {
  padding: clamp(28px, 5vw, 56px);
  color: var(--ink);
}

.page-faq .contact-panel .section-head {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-faq .contact-panel .section-num {
  color: rgba(12, 32, 25, 0.5);
}

.page-faq .contact-panel .display-2 {
  color: var(--ink);
}

.page-faq .contact-panel .lede {
  color: rgba(12, 32, 25, 0.76);
}

.page-faq .contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  margin-bottom: clamp(24px, 3vw, 38px);
}

.page-faq .contact-block {
  padding-top: 16px;
  border-top: 2px solid var(--ink);
}

.page-faq .contact-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: rgba(12, 32, 25, 0.58);
}

.page-faq .contact-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 0 0 12px;
}

.page-faq .contact-val {
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.9vw, 18px);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink);
  word-break: break-all;
}

.page-faq .contact-panel .copy-btn {
  font: inherit;
  font-family: var(--font-body);
  font-size: 12px;
  padding: 6px 14px;
  color: var(--ink);
  background: transparent;
  border: 1px solid rgba(12, 32, 25, 0.42);
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .contact-panel .copy-btn:hover,
.page-faq .contact-panel .copy-btn:focus-visible {
  background: var(--ink);
  color: var(--lime);
  border-color: var(--ink);
}

.page-faq .contact-hint {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(12, 32, 25, 0.72);
}

.page-faq .contact-prepare {
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px dashed rgba(12, 32, 25, 0.3);
}

.page-faq .contact-prepare .display-3 {
  margin: 0 0 14px;
  font-size: clamp(20px, 2.4vw, 26px);
  color: var(--ink);
}

.page-faq .contact-prepare ul {
  margin: 0 0 20px;
  padding-left: 20px;
  display: grid;
  gap: 8px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(12, 32, 25, 0.82);
}

.page-faq .contact-more {
  margin: 0;
}

.page-faq .contact-more a {
  font-weight: 700;
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 640px) {
  .page-faq .save-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-faq .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px;
  }

  .page-faq .install-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .install-card:nth-child(2) {
    margin-top: 28px;
  }

  .page-faq .install-card:nth-child(3) {
    margin-top: 14px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-intro-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.8fr);
    align-items: end;
  }

  .page-faq .price-board {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-faq .price-col + .price-col {
    border-left-color: transparent;
  }

  .page-faq .price-col:nth-child(2) {
    margin-top: 26px;
  }

  .page-faq .price-col:nth-child(3) {
    margin-top: 52px;
  }

  .page-faq .step-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    padding-bottom: 58px;
  }

  .page-faq .step-item {
    border-top-width: 2px;
  }

  .page-faq .step-item + .step-item {
    border-left: 1px solid var(--line);
  }

  .page-faq .step-item:nth-child(2) {
    margin-top: 26px;
  }

  .page-faq .step-item:nth-child(3) {
    margin-top: 52px;
  }

  .page-faq .saved-layout {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-faq .saved-visual {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .price-col,
  .page-faq .install-card,
  .page-faq .aside-list a,
  .page-faq .save-card {
    transition: none;
  }

  .page-faq .price-col:hover,
  .page-faq .price-col:focus-visible,
  .page-faq .install-card:hover {
    transform: none;
  }
}