.page-faq {
  --faq-red: #E63946;
  --faq-orange: #F77F00;
  --faq-deep: #1D3557;
  --faq-neon: #06D6A0;
  --faq-bg: #F8F9FA;
  --faq-dark: #212529;
  --faq-muted: #6C757D;
  --faq-white: #FFFFFF;
  --faq-font-title: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  --faq-font-body: 'Noto Sans SC', 'PingFang SC', sans-serif;
  --faq-font-num: 'Roboto Mono', 'Courier New', monospace;
  --faq-container-w: 1320px;
  --faq-container-pad: clamp(1rem, 3vw, 2.5rem);
  --faq-ease: cubic-bezier(.2, .8, .2, 1);
}

.page-faq {
  font-family: var(--faq-font-body);
  background: var(--faq-bg);
  color: var(--faq-dark);
  overflow-x: hidden;
}

.page-faq .container {
  max-width: var(--faq-container-w);
  padding-left: var(--faq-container-pad);
  padding-right: var(--faq-container-pad);
  margin-left: auto;
  margin-right: auto;
}

.page-faq .section-title__index {
  font-family: var(--faq-font-num);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--faq-orange);
  display: inline-block;
  text-transform: uppercase;
}

.page-faq .section-title__index::after {
  content: "";
  display: inline-block;
  width: 40px;
  height: 2px;
  background: currentColor;
  margin-left: 8px;
  vertical-align: middle;
}

.page-faq .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  border: 1px solid;
}

.page-faq .tag--green {
  color: var(--faq-neon);
  border-color: rgba(6, 214, 160, 0.4);
  background: rgba(6, 214, 160, 0.08);
}

.page-faq .tag--orange {
  color: var(--faq-orange);
  border-color: rgba(247, 127, 0, 0.4);
  background: rgba(247, 127, 0, 0.08);
}

.page-faq .tag--red {
  color: var(--faq-red);
  border-color: rgba(230, 57, 70, 0.4);
  background: rgba(230, 57, 70, 0.08);
}

.page-faq .status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  display: inline-block;
}

.page-faq .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--faq-font-title);
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.3s var(--faq-ease), box-shadow 0.3s var(--faq-ease), background 0.3s var(--faq-ease);
}

.page-faq .btn:hover {
  transform: translateY(-2px);
}

.page-faq .btn--primary {
  background: var(--faq-red);
  color: var(--faq-white);
}

.page-faq .btn--primary:hover {
  box-shadow: 0 8px 24px rgba(230, 57, 70, 0.3);
}

.page-faq .btn--outline {
  border-color: var(--faq-red);
  color: var(--faq-red);
  background: transparent;
}

.page-faq .btn--outline:hover {
  background: rgba(230, 57, 70, 0.08);
}

.page-faq .btn--outline-light {
  border-color: var(--faq-white);
  color: var(--faq-white);
}

.page-faq .btn--outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
}

.page-faq .btn--neon {
  background: var(--faq-neon);
  color: var(--faq-dark);
}

.page-faq .btn--neon:hover {
  box-shadow: 0 0 24px rgba(6, 214, 160, 0.45);
}

.page-faq__hero {
  position: relative;
  background: var(--faq-deep);
  padding-top: clamp(2.5rem, 6vw, 5rem);
  padding-bottom: clamp(2.5rem, 6vw, 5rem);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 40px), 0 100%);
  overflow: hidden;
}

.page-faq__hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: -10%;
  width: 45%;
  height: 100%;
  background: linear-gradient(135deg, rgba(230, 57, 70, 0.9), rgba(247, 127, 0, 0.7));
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  z-index: 1;
}

.page-faq__hero::after {
  content: "";
  position: absolute;
  bottom: 30px;
  left: 0;
  width: 100%;
  height: 3px;
  background: repeating-linear-gradient(90deg, var(--faq-neon) 0 12px, transparent 12px 24px);
  opacity: 0.5;
  z-index: 2;
}

.page-faq__hero-inner {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.page-faq__hero-copy {
  max-width: 100%;
}

.page-faq__breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 1.25rem;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.6);
}

.page-faq__breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  transition: color 0.2s;
}

.page-faq__breadcrumb a:hover {
  color: var(--faq-neon);
}

.page-faq__title {
  font-family: var(--faq-font-title);
  font-style: italic;
  font-weight: 900;
  font-size: clamp(1.875rem, 4.5vw, 3.375rem);
  line-height: 1.15;
  color: var(--faq-white);
  margin: 0 0 1rem;
  max-width: 760px;
}

.page-faq__lead {
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.75);
  max-width: 640px;
  margin: 0 0 1.5rem;
}

.page-faq__hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq__hero-media {
  position: relative;
  z-index: 3;
  display: flex;
  justify-content: flex-end;
}

.page-faq__hero-img {
  max-width: 100%;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 4px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.page-faq__search {
  padding-top: clamp(2.5rem, 5vw, 4rem);
  padding-bottom: clamp(2rem, 4vw, 3rem);
  background: var(--faq-white);
}

.page-faq__search-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
}

.page-faq__search-label {
  flex: 1;
}

.page-faq__search-heading {
  font-family: var(--faq-font-title);
  font-style: italic;
  font-weight: 900;
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  margin: 0 0 0.5rem;
  color: var(--faq-dark);
}

.page-faq__search-desc {
  font-size: 0.875rem;
  color: var(--faq-muted);
  line-height: 1.6;
  margin: 0;
}

.page-faq__search-box {
  position: relative;
  width: 100%;
  max-width: 640px;
}

.page-faq__search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--faq-muted);
  display: flex;
  z-index: 2;
}

.page-faq__search-input {
  width: 100%;
  padding: 16px 48px 16px 48px;
  font-family: var(--faq-font-body);
  font-size: 0.9375rem;
  color: var(--faq-dark);
  background: var(--faq-bg);
  border: 2px solid #e5e8ea;
  border-radius: 0;
  outline: none;
  transition: border-color 0.3s var(--faq-ease), box-shadow 0.3s var(--faq-ease);
  appearance: none;
}

.page-faq__search-input:focus {
  border-color: var(--faq-orange);
  box-shadow: 0 0 0 4px rgba(247, 127, 0, 0.15);
}

.page-faq__search-count {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--faq-font-num);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--faq-muted);
  white-space: nowrap;
  pointer-events: none;
}

.page-faq__questions {
  padding-top: clamp(2rem, 4vw, 3.5rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
  background: var(--faq-bg);
}

.page-faq__section-head {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
  position: relative;
}

.page-faq__section-title {
  font-family: var(--faq-font-title);
  font-style: italic;
  font-weight: 900;
  font-size: clamp(1.625rem, 3.5vw, 2.5rem);
  line-height: 1.2;
  margin: 0;
  color: var(--faq-dark);
}

.page-faq__section-title::after {
  content: "";
  display: inline-block;
  width: 60px;
  height: 8px;
  background: linear-gradient(90deg, var(--faq-red) 0%, var(--faq-orange) 100%);
  margin-left: 16px;
  vertical-align: middle;
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.page-faq__section-desc {
  font-size: 0.9375rem;
  color: var(--faq-muted);
  line-height: 1.6;
  margin: 0.5rem 0 0;
  max-width: 560px;
}

.page-faq__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-faq__item {
  background: var(--faq-white);
  border-left: 4px solid var(--faq-red);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
  transition: box-shadow 0.3s var(--faq-ease), transform 0.3s var(--faq-ease);
}

.page-faq__item:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.page-faq__item:nth-child(3n+2) {
  border-left-color: var(--faq-orange);
}

.page-faq__item:nth-child(3n+3) {
  border-left-color: var(--faq-deep);
}

.page-faq__item:focus-within {
  box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.2);
}

.page-faq__q {
  display: flex;
  align-items: center;
  gap: 1rem;
  width: 100%;
  padding: 1.125rem 1.25rem;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: var(--faq-font-body);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--faq-dark);
  text-align: left;
  transition: background 0.3s var(--faq-ease);
}

.page-faq__q:hover {
  background: rgba(247, 127, 0, 0.05);
}

.page-faq__q[aria-expanded="true"] {
  background: rgba(230, 57, 70, 0.04);
}

.page-faq__q-icon {
  font-family: var(--faq-font-num);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--faq-white);
  background: var(--faq-red);
  padding: 4px 8px;
  flex-shrink: 0;
  letter-spacing: 0.04em;
}

.page-faq__item:nth-child(3n+2) .page-faq__q-icon {
  background: var(--faq-orange);
}

.page-faq__item:nth-child(3n+3) .page-faq__q-icon {
  background: var(--faq-deep);
}

.page-faq__q-text {
  flex: 1;
  line-height: 1.45;
}

.page-faq__q-mark {
  font-family: var(--faq-font-num);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--faq-orange);
  flex-shrink: 0;
  transition: transform 0.35s var(--faq-ease), color 0.3s var(--faq-ease);
}

.page-faq__q[aria-expanded="true"] .page-faq__q-mark {
  transform: rotate(45deg);
  color: var(--faq-red);
}

.page-faq__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s var(--faq-ease), padding 0.45s var(--faq-ease);
  padding: 0 1.25rem 0 3.25rem;
}

.page-faq__a > p {
  margin: 0;
  padding-bottom: 1.125rem;
  font-size: 0.90625rem;
  line-height: 1.75;
  color: #495057;
}

.page-faq__a.is-open {
  max-height: 500px;
}

.page-faq__empty {
  text-align: center;
  padding: 2rem;
  font-size: 0.9375rem;
  color: var(--faq-muted);
  background: var(--faq-white);
  border: 1px dashed #d0d5dc;
  margin-top: 1rem;
}

.page-faq__guide {
  background: var(--faq-deep);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 36px), 0 100%);
  padding-top: clamp(3rem, 6vw, 5rem);
  padding-bottom: clamp(3.5rem, 7vw, 6rem);
  position: relative;
  overflow: hidden;
}

.page-faq__guide::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 220px;
  height: 220px;
  background: rgba(230, 57, 70, 0.25);
  border-radius: 50%;
  z-index: 1;
}

.page-faq__guide::after {
  content: "";
  position: absolute;
  bottom: 20px;
  left: 5%;
  width: 60%;
  height: 80px;
  background: repeating-linear-gradient(115deg, rgba(6, 214, 160, 0.15) 0 8px, transparent 8px 16px);
  clip-path: polygon(0 0, 100% 0, 95% 100%, 0 100%);
  z-index: 1;
}

.page-faq__guide-grid {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: clamp(2rem, 4vw, 3.5rem);
}

.page-faq__guide-copy {
  flex: 1;
}

.page-faq__section-head--light .section-title__index {
  color: var(--faq-orange);
}

.page-faq__section-head--light .page-faq__section-title {
  color: var(--faq-white);
}

.page-faq__section-head--light .page-faq__section-title::after {
  background: linear-gradient(90deg, var(--faq-orange), var(--faq-neon));
}

.page-faq__section-head--light .page-faq__section-desc {
  color: rgba(255, 255, 255, 0.65);
}

.page-faq__steps {
  list-style: none;
  margin: 0 0 2rem;
  padding: 0;
  position: relative;
  counter-reset: faq-step;
}

.page-faq__steps::before {
  content: "";
  position: absolute;
  left: 30px;
  top: 16px;
  bottom: 16px;
  width: 2px;
  background: linear-gradient(180deg, var(--faq-red), var(--faq-orange), var(--faq-neon));
  opacity: 0.5;
}

.page-faq__step {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.875rem 0;
}

.page-faq__step-num {
  font-family: var(--faq-font-num);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--faq-white);
  background: var(--faq-red);
  width: 60px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 50%, calc(100% - 8px) 100%, 0 100%, 8px 50%);
  flex-shrink: 0;
  position: relative;
  z-index: 2;
}

.page-faq__step:nth-child(2) .page-faq__step-num {
  background: var(--faq-orange);
}

.page-faq__step:nth-child(3) .page-faq__step-num {
  background: var(--faq-deep);
  box-shadow: inset 0 0 0 2px var(--faq-orange);
}

.page-faq__step:nth-child(4) .page-faq__step-num {
  background: var(--faq-neon);
  color: var(--faq-dark);
}

.page-faq__step-body {
  flex: 1;
}

.page-faq__step-title {
  font-family: var(--faq-font-title);
  font-style: italic;
  font-weight: 900;
  font-size: 1.125rem;
  color: var(--faq-white);
  margin: 0 0 0.375rem;
}

.page-faq__step-body p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.68);
  margin: 0;
  max-width: 560px;
}

.page-faq__guide-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}

.page-faq__guide-media {
  flex: 1;
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.page-faq__guide-img {
  max-width: 100%;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 4px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.page-faq__contact {
  padding-top: clamp(3rem, 6vw, 5rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
  background: var(--faq-white);
  position: relative;
}

.page-faq__contact::before {
  content: "";
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: repeating-linear-gradient(90deg, var(--faq-red) 0 24px, var(--faq-orange) 24px 48px, var(--faq-neon) 48px 56px, transparent 56px 64px);
}

.page-faq__contact-grid {
  display: flex;
  flex-direction: column;
  gap: clamp(2rem, 5vw, 4rem);
}

.page-faq__contact-copy {
  flex: 1;
}

.page-faq__contact-list {
  list-style: none;
  margin: 1.5rem 0 2rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  max-width: 640px;
}

.page-faq__contact-item {
  background: var(--faq-bg);
  border: 1px solid #e5e8ea;
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  position: relative;
  transition: border-color 0.3s var(--faq-ease), box-shadow 0.3s var(--faq-ease);
}

.page-faq__contact-item:hover {
  border-color: var(--faq-orange);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
}

.page-faq__contact-item::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--faq-red), var(--faq-orange));
}

.page-faq__contact-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faq-muted);
}

.page-faq__contact-link {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--faq-red);
  text-decoration: none;
  word-break: break-all;
  transition: color 0.2s;
}

.page-faq__contact-link:hover {
  color: var(--faq-orange);
}

.page-faq__contact-link--num {
  font-family: var(--faq-font-num);
  font-weight: 600;
}

.page-faq__contact-content {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--faq-dark);
}

.page-faq__contact-use {
  font-size: 0.8125rem;
  color: var(--faq-muted);
  line-height: 1.5;
}

.page-faq__contact-btn {
  margin-top: 0.5rem;
}

.page-faq__support-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.5rem 1.75rem;
  color: var(--faq-dark);
  position: relative;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

.page-faq__support-card--red {
  background: linear-gradient(135deg, rgba(230, 57, 70, 0.12), rgba(230, 57, 70, 0.04));
  border: 1px solid rgba(230, 57, 70, 0.25);
}

.page-faq__support-card--orange {
  background: linear-gradient(135deg, rgba(247, 127, 0, 0.14), rgba(247, 127, 0, 0.04));
  border: 1px solid rgba(247, 127, 0, 0.3);
}

.page-faq__support-card--deep {
  background: var(--faq-deep);
  color: var(--faq-white);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.page-faq__support-card-icon {
  font-family: var(--faq-font-title);
  font-style: italic;
  font-weight: 900;
  font-size: 1.5rem;
  color: var(--faq-red);
  line-height: 1;
}

.page-faq__support-card--orange .page-faq__support-card-icon {
  color: var(--faq-orange);
}

.page-faq__support-card--deep .page-faq__support-card-icon {
  color: var(--faq-neon);
}

.page-faq__support-card-title {
  font-family: var(--faq-font-title);
  font-style: italic;
  font-weight: 900;
  font-size: 1.125rem;
  margin: 0;
}

.page-faq__support-card p {
  font-size: 0.875rem;
  line-height: 1.6;
  margin: 0;
  opacity: 0.85;
}

.page-faq__contact-support {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.875rem;
  align-content: start;
  flex: 1;
}

.page-faq__support-card:hover {
  transform: translateY(-4px);
  transition: transform 0.3s var(--faq-ease), box-shadow 0.3s var(--faq-ease);
}

.page-faq__support-card {
  transition: transform 0.3s var(--faq-ease), box-shadow 0.3s var(--faq-ease);
}

.page-faq__support-card:hover {
  transform: translateY(-4px);
}

@media (max-width: 575px) {
  .page-faq__hero-tags {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .page-faq__q {
    flex-wrap: wrap;
    padding: 1rem;
  }

  .page-faq__q-mark {
    margin-left: auto;
  }

  .page-faq__a {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .page-faq__section-title::after {
    display: none;
  }

  .page-faq__step-num {
    width: 48px;
    font-size: 0.75rem;
  }

  .page-faq__steps::before {
    left: 24px;
  }

  .page-faq__guide-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .page-faq__guide-actions .btn {
    width: 100%;
  }

  .page-faq__contact-item {
    padding: 1rem;
  }
}

@media (min-width: 768px) {
  .page-faq__hero-inner {
    flex-direction: row;
    align-items: center;
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-faq__hero-copy {
    flex: 1.2;
  }

  .page-faq__hero-media {
    flex: 0.8;
  }

  .page-faq__hero-img {
    max-width: 560px;
  }

  .page-faq__search-inner {
    flex-direction: row;
    align-items: center;
    gap: 2rem;
  }

  .page-faq__search-box {
    max-width: 480px;
  }

  .page-faq__guide-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 2.5rem;
    align-items: center;
  }

  .page-faq__steps {
    margin-bottom: 2.5rem;
  }

  .page-faq__contact-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 2.5rem;
  }

  .page-faq__contact-support {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 1024px) {
  .page-faq__hero::before {
    width: 38%;
  }

  .page-faq__hero-copy {
    padding-left: 3rem;
  }

  .page-faq__section-desc {
    font-size: 1rem;
  }

  .page-faq__search-inner {
    gap: 4rem;
  }

  .page-faq__search-box {
    max-width: 560px;
  }

  .page-faq__list {
    gap: 1rem;
  }

  .page-faq__q {
    padding: 1.25rem 1.5rem;
  }

  .page-faq__a {
    padding-left: 3.5rem;
  }

  .page-faq__support-card {
    clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
    padding: 1.75rem 2rem;
  }
}

@media (min-width: 1200px) {
  .page-faq__contact-support {
    grid-template-columns: 1fr;
  }
}

.page-faq__guide-img,
.page-faq__hero-img {
  filter: saturate(1.15) contrast(1.05);
}