.page-faq {
  --faq-sidebar-width: 296px;
  --faq-violet: #3D2B56;
  --faq-violet-soft: #6B4B8F;
  --faq-deep: #0A2540;
  --faq-line: rgba(255, 255, 255, 0.14);
  --faq-card-line: rgba(10, 37, 64, 0.12);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background:
    linear-gradient(rgba(10, 37, 64, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 37, 64, 0.03) 1px, transparent 1px),
    var(--light);
  background-size: 28px 28px, 28px 28px, auto;
  color: var(--ink);
}

/* ========== 侧边栏 ========== */
.page-faq .faq-sidebar {
  position: relative;
  background: var(--faq-deep);
  color: var(--white);
  flex: none;
  overflow: hidden;
}

.page-faq .faq-sidebar::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 26px 26px;
  pointer-events: none;
}

.page-faq .faq-sidebar-inner {
  position: relative;
  padding: 30px 20px;
}

.page-faq .faq-sidebar-kicker {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-faq .faq-sidebar-version {
  font-family: var(--font-data);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.72);
  letter-spacing: 0.08em;
}

.page-faq .faq-sidebar-title {
  margin: 28px 0 0;
  font-family: var(--font-heading);
  font-size: 26px;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-faq .faq-sidebar-lead {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.66);
}

.page-faq .faq-sidebar-nav {
  margin-top: 28px;
  border-top: 1px solid var(--faq-line);
  padding-top: 14px;
}

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

.page-faq .faq-sidebar-list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 12px;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-sidebar-list a span {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--green);
  opacity: 0.85;
}

.page-faq .faq-sidebar-list a:hover,
.page-faq .faq-sidebar-list a:focus-visible {
  background: rgba(0, 230, 118, 0.09);
  border-left-color: var(--green);
  color: var(--white);
  outline: none;
}

.page-faq .faq-sidebar-status {
  margin-top: 28px;
  padding: 18px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-sidebar-status-title {
  margin: 0;
  font-size: 12px;
  font-family: var(--font-data);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--green);
}

.page-faq .faq-sidebar-status-list {
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-sidebar-status-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-data);
  font-size: 12px;
}

.page-faq .faq-sidebar-status-item dt {
  color: rgba(255, 255, 255, 0.66);
}

.page-faq .faq-sidebar-status-item dd {
  margin: 0;
  color: var(--white);
  font-weight: 700;
}

.page-faq .faq-sidebar-progress {
  margin-top: 18px;
}

.page-faq .faq-sidebar-progress-label {
  display: block;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.72);
}

.page-faq .faq-sidebar-progress .data-bar {
  height: 8px;
  background: rgba(255, 255, 255, 0.12);
}

.page-faq .faq-sidebar-progress-num {
  display: inline-block;
  margin-top: 6px;
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--green);
}

.page-faq .faq-sidebar-contact {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-sidebar-contact p {
  margin: 0 0 12px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.82);
}

/* ========== 内容区 ========== */
.page-faq .faq-content {
  flex: 1;
  min-width: 0;
  padding: 24px 16px 72px;
}

.page-faq .faq-content-inner {
  max-width: 920px;
  margin: 0 auto;
}

.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--gray);
}

.page-faq .breadcrumb a {
  color: var(--teal);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-faq .breadcrumb a:hover {
  color: var(--orange);
}

/* ========== 页面头 ========== */
.page-faq .faq-page-head {
  padding: 34px 0 22px;
  border-bottom: 1px solid var(--faq-card-line);
}

.page-faq .faq-page-head-tag {
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--teal);
}

.page-faq .faq-page-head-tag::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--orange);
}

.page-faq .faq-page-head h1 {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(30px, 5.5vw, 46px);
  line-height: 1.06;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  color: var(--deep-blue);
}

.page-faq .faq-page-head h1 span {
  display: block;
  margin-top: 8px;
  font-size: 0.56em;
  letter-spacing: 0.05em;
  text-transform: none;
  color: var(--orange);
}

.page-faq .faq-page-head .page-lead {
  margin: 20px 0 0;
  max-width: 760px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
}

/* ========== 区块通用 ========== */
.page-faq .faq-block {
  margin-top: 52px;
}

.page-faq .faq-block-head {
  margin-bottom: 22px;
}

.page-faq .faq-block-desc {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray);
}

/* ========== 热门问题 ========== */
.page-faq .faq-accordion {
  display: grid;
  gap: 14px;
}

.page-faq .faq-card {
  background: var(--white);
  border: 1px solid var(--faq-card-line);
  border-left: 4px solid var(--faq-violet);
  clip-path: polygon(0% 0%, calc(100% - 14px) 0%, 100% 14px, 100% 100%, 0% 100%);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .faq-card:hover {
  border-left-color: var(--orange);
  transform: translateX(4px);
}

.page-faq .faq-card > summary {
  list-style: none;
  cursor: pointer;
  position: relative;
  padding: 17px 52px 17px 18px;
  font-family: var(--font-heading);
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--deep-blue);
}

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

.page-faq .faq-card > summary::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 19px;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--orange);
  border-bottom: 2px solid var(--orange);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.22s var(--ease);
}

.page-faq .faq-card[open] > summary::after {
  transform: translateY(-30%) rotate(225deg);
}

.page-faq .faq-card-a {
  padding: 14px 20px 20px;
  border-top: 1px dashed var(--faq-card-line);
  font-size: 14px;
  line-height: 1.78;
  color: var(--gray);
}

.page-faq .faq-card-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  text-decoration: none;
  transition: color 0.2s var(--ease), gap 0.2s var(--ease);
}

.page-faq .faq-card-more::after {
  content: "→";
  font-family: var(--font-data);
}

.page-faq .faq-card-more:hover,
.page-faq .faq-card-more:focus-visible {
  color: var(--green);
  gap: 10px;
  outline: none;
}

/* ========== 分类导航指南 ========== */
.page-faq .faq-guide-layout {
  display: grid;
  gap: 26px;
}

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

.page-faq .faq-step {
  display: flex;
  gap: 16px;
  background: var(--white);
  border: 1px solid var(--faq-card-line);
  padding: 18px 20px;
  transition: box-shadow 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .faq-step:hover {
  box-shadow: 0 12px 28px rgba(10, 37, 64, 0.08);
  transform: translateY(-2px);
}

.page-faq .faq-step-num {
  flex: none;
  font-family: var(--font-data);
  font-size: 24px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-step-body h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-family: var(--font-heading);
  color: var(--deep-blue);
}

.page-faq .faq-step-body p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--gray);
}

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

.page-faq .faq-guide-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--faq-card-line);
}

.page-faq .faq-guide-figure figcaption,
.page-faq .faq-tablet-figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  text-align: center;
  color: var(--gray);
  letter-spacing: 0.04em;
}

/* ========== 赛后复盘页面 ========== */
.page-faq .faq-review-grid {
  display: grid;
  gap: 16px;
}

.page-faq .faq-review-panel {
  position: relative;
  padding: 20px 20px 26px;
  background: var(--white);
  border: 1px solid var(--faq-card-line);
  border-top: 4px solid var(--green);
  transition: box-shadow 0.2s var(--ease);
}

.page-faq .faq-review-panel:nth-child(2) {
  border-top-color: var(--orange);
}

.page-faq .faq-review-panel:nth-child(3) {
  border-top-color: var(--faq-violet);
}

.page-faq .faq-review-panel:nth-child(4) {
  border-top-color: var(--teal);
}

.page-faq .faq-review-panel:hover {
  box-shadow: 0 12px 28px rgba(10, 37, 64, 0.08);
}

.page-faq .faq-review-tag {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 3px 7px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--deep-blue);
  background: rgba(10, 37, 64, 0.06);
}

.page-faq .faq-review-panel h3 {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-size: 16px;
  color: var(--deep-blue);
}

.page-faq .faq-review-panel p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--gray);
}

/* ========== 平板端帮助文档 ========== */
.page-faq .faq-tablet-layout {
  display: grid;
  gap: 28px;
}

.page-faq .faq-tablet-intro {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--gray);
}

.page-faq .faq-tablet-features {
  list-style: none;
  margin: 22px 0 18px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-tablet-features li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.page-faq .faq-feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 28px;
  height: 28px;
  background: var(--faq-violet);
  color: var(--white);
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  clip-path: polygon(0% 0%, calc(100% - 6px) 0%, 100% 6px, 100% 100%, 0% 100%);
}

.page-faq .faq-tablet-features strong {
  display: block;
  margin-bottom: 4px;
  font-size: 14px;
  color: var(--deep-blue);
}

.page-faq .faq-tablet-features p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
}

.page-faq .faq-tablet-note {
  font-size: 13px;
  color: var(--gray);
}

.page-faq .faq-tablet-note a {
  color: var(--orange);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-tablet-note a:hover {
  color: var(--green);
  border-bottom-color: var(--green);
}

.page-faq .faq-tablet-figure {
  margin: 0 auto;
  max-width: 480px;
}

.page-faq .faq-tablet-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--faq-card-line);
  box-shadow: 18px 18px 0 rgba(10, 37, 64, 0.08);
}

/* ========== 全部文档目录 ========== */
.page-faq .faq-catalog-filter {
  position: relative;
}

.page-faq .faq-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  clip-path: inset(50%);
  pointer-events: none;
}

.page-faq .faq-filter-bar {
  background: var(--faq-deep);
  padding: 18px;
}

.page-faq .faq-search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  background: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-faq .faq-search-box svg {
  flex: none;
  width: 18px;
  height: 18px;
  color: var(--gray);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-search-input {
  flex: 1;
  min-width: 0;
  padding: 11px 0;
  border: 0;
  background: transparent;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--ink);
}

.page-faq .faq-search-input:focus {
  outline: none;
}

.page-faq .faq-search-box:focus-within {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.16);
}

.page-faq .faq-search-box:focus-within svg {
  color: var(--orange);
}

.page-faq .faq-focus-hint {
  display: none;
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.66);
}

.page-faq .faq-search-box:focus-within + .faq-focus-hint {
  display: block;
}

.page-faq .faq-filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.page-faq .faq-filter-tabs label {
  cursor: pointer;
  padding: 8px 13px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.26);
  color: rgba(255, 255, 255, 0.86);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-filter-tabs label:hover {
  border-color: var(--green);
  color: var(--green);
}

.page-faq .faq-radio:focus-visible ~ .faq-filter-bar {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.page-faq .faq-cat-all:checked ~ .faq-filter-bar label[for="faq-cat-all"],
.page-faq .faq-cat-basic:checked ~ .faq-filter-bar label[for="faq-cat-basic"],
.page-faq .faq-cat-nav:checked ~ .faq-filter-bar label[for="faq-cat-nav"],
.page-faq .faq-cat-review:checked ~ .faq-filter-bar label[for="faq-cat-review"],
.page-faq .faq-cat-tablet:checked ~ .faq-filter-bar label[for="faq-cat-tablet"] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--white);
}

.page-faq .faq-doc-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  background: var(--white);
  border: 1px solid var(--faq-card-line);
}

.page-faq .faq-doc-item {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 15px 18px;
  border-bottom: 1px dashed var(--faq-card-line);
  box-sizing: border-box;
  transition: background 0.2s var(--ease);
}

.page-faq .faq-doc-item:last-child {
  border-bottom: 0;
}

.page-faq .faq-doc-item:hover {
  background: rgba(10, 37, 64, 0.04);
}

.page-faq .faq-cat-basic {
  border-left: 3px solid var(--green);
}

.page-faq .faq-cat-nav {
  border-left: 3px solid var(--orange);
}

.page-faq .faq-cat-review {
  border-left: 3px solid var(--faq-violet-soft);
}

.page-faq .faq-cat-tablet {
  border-left: 3px solid var(--teal);
}

.page-faq .faq-doc-goto {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  color: var(--orange);
  font-family: var(--font-data);
  font-size: 18px;
  text-decoration: none;
  border: 1px solid rgba(10, 37, 64, 0.16);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-doc-goto::before {
  content: "→";
}

.page-faq .faq-doc-goto:hover,
.page-faq .faq-doc-goto:focus-visible {
  background: var(--deep-blue);
  border-color: var(--deep-blue);
  color: var(--green);
  outline: none;
}

.page-faq .faq-doc-main {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.page-faq .faq-doc-cat {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-faq .faq-doc-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--deep-blue);
  line-height: 1.45;
}

.page-faq .faq-doc-desc {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.6;
}

/* ========== 过滤逻辑 ========== */
.page-faq .faq-radio:checked ~ .faq-filter-bar ~ .faq-doc-list .faq-doc-item {
  display: none;
}

.page-faq .faq-cat-all:checked ~ .faq-filter-bar ~ .faq-doc-list .faq-doc-item {
  display: flex;
}

.page-faq .faq-cat-basic:checked ~ .faq-filter-bar ~ .faq-doc-list .faq-cat-basic {
  display: flex;
}

.page-faq .faq-cat-nav:checked ~ .faq-filter-bar ~ .faq-doc-list .faq-cat-nav {
  display: flex;
}

.page-faq .faq-cat-review:checked ~ .faq-filter-bar ~ .faq-doc-list .faq-cat-review {
  display: flex;
}

.page-faq .faq-cat-tablet:checked ~ .faq-filter-bar ~ .faq-doc-list .faq-cat-tablet {
  display: flex;
}

/* ========== 桌面端断点 ========== */
@media (min-width: 880px) {
  .page-faq {
    flex-direction: row;
    align-items: stretch;
  }

  .page-faq .faq-sidebar {
    width: var(--faq-sidebar-width);
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
  }

  .page-faq .faq-sidebar-inner {
    padding: 36px 26px;
  }

  .page-faq .faq-content {
    padding: 44px 52px 100px;
  }

  .page-faq .faq-page-head {
    padding-top: 44px;
  }

  .page-faq .faq-guide-layout {
    grid-template-columns: 5fr 6fr;
    gap: 36px;
    align-items: center;
  }

  .page-faq .faq-review-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-tablet-layout {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 42px;
    align-items: center;
  }

  .page-faq .faq-tablet-figure {
    max-width: 480px;
  }

  .page-faq .faq-doc-item {
    padding: 16px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition: none !important;
    animation: none !important;
  }
}