:root {
  --f1-red: #ff1801;
  --f1-red-soft: #ff7a66;
  --f1-ink: #111827;
  --f1-carbon: #0b0d12;
  --f1-steel: #445066;
  --f1-muted: #6a7280;
  --f1-ice: #58c0ff;
  --f1-cream: #f7f2eb;
  --f1-panel: rgba(255, 255, 255, 0.84);
  --f1-panel-strong: rgba(255, 255, 255, 0.94);
  --f1-border: rgba(17, 24, 39, 0.12);
  --f1-shadow: 0 22px 50px rgba(17, 24, 39, 0.12);
  --f1-display: "Teko", "Barlow Condensed", "Noto Sans TC", sans-serif;
  --f1-heading: "Barlow Condensed", "Noto Sans TC", sans-serif;
  --f1-body: "Noto Sans TC", "Barlow", sans-serif;
}

html[data-theme="dark"] {
  --f1-panel: rgba(15, 23, 42, 0.78);
  --f1-panel-strong: rgba(11, 13, 18, 0.92);
  --f1-border: rgba(255, 255, 255, 0.08);
  --f1-shadow: 0 26px 60px rgba(0, 0, 0, 0.35);
  --f1-steel: #c3cfde;
  --f1-muted: #9aa8bb;
}

html,
body {
  font-family: var(--f1-body);
}

body {
  letter-spacing: 0.01em;
}

::selection {
  background: var(--f1-red);
  color: #fff;
}

#web_bg {
  opacity: 0.82;
}

#page-header.full_page,
#page-header.post-bg,
#page-header.not-home-page {
  overflow: hidden;
}

#page-header.full_page::after,
#page-header.post-bg::after,
#page-header.not-home-page::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(118deg, rgba(11, 13, 18, 0.14) 0 58%, rgba(255, 24, 1, 0.28) 100%),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.04) 0 1px, transparent 1px 72px);
  content: "";
  pointer-events: none;
}

#page-header.full_page {
  min-height: 780px;
}

#page-header.full_page #site-info {
  right: 0;
  bottom: 14vh;
  left: 50%;
  padding: 0;
  width: min(1120px, calc(100% - 48px));
  text-align: left;
  transform: translateX(-50%);
  z-index: 3;
}

#page-header #site-title,
#page-site-info #site-title,
#post-info .post-title {
  font-family: var(--f1-display);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-shadow: none;
}

#page-header.full_page #site-title {
  max-width: 9ch;
  font-size: clamp(3.6rem, 10vw, 7.2rem);
  line-height: 0.9;
}

#page-site-info #site-title,
#post-info .post-title {
  max-width: none;
}

#site-subtitle {
  margin-top: 1.2rem;
  width: min(520px, 100%);
  padding: 0.85rem 1rem 0.9rem 1.2rem;
  border-left: 4px solid var(--f1-red);
  background: rgba(11, 13, 18, 0.45);
  backdrop-filter: blur(16px);
}

#site-subtitle #subtitle {
  color: #fff;
  font-family: var(--f1-heading);
  font-size: clamp(1rem, 2vw, 1.45rem);
  letter-spacing: 0.08em;
}

#site_social_icons {
  display: flex !important;
  gap: 12px;
  margin: 1.2rem 0 0;
  justify-content: flex-start;
}

#site_social_icons .social-icon {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(11, 13, 18, 0.35);
  color: #fff;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

#site_social_icons .social-icon:hover {
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(255, 24, 1, 0.62);
  transform: translateY(-3px);
}

#scroll-down {
  bottom: 26px;
}

#nav {
  padding: 0 24px;
}

#nav .site-name,
#nav .site-page,
#nav .menus_item_child a {
  font-family: var(--f1-heading);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#nav .site-name {
  font-family: var(--f1-display);
  font-size: 1.12em;
}

#page-header.not-top-img #nav,
#page-header.nav-fixed #nav {
  border-bottom: 1px solid var(--f1-border);
  background: rgba(247, 242, 235, 0.86);
  box-shadow: 0 14px 30px rgba(17, 24, 39, 0.12);
  backdrop-filter: blur(16px);
}

html[data-theme="dark"] #page-header.not-top-img #nav,
html[data-theme="dark"] #page-header.nav-fixed #nav {
  background: rgba(11, 13, 18, 0.82);
}

main#content-inner.layout {
  align-items: flex-start;
  width: min(1240px, calc(100% - 36px));
}

.f1-home-main,
#recent-posts,
#aside-content,
.f1-command-grid > *,
.f1-page-grid > *,
.f1-page-stats > * {
  min-width: 0;
}

.f1-home-main {
  flex: 1 1 74%;
  width: 100%;
}

.f1-command-center {
  position: relative;
  z-index: 5;
  margin: -120px 0 2.5rem;
}

.f1-command-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr);
  gap: 18px;
}

.f1-command-main,
.f1-command-card,
.f1-command-metrics,
.f1-command-lanes,
#recent-posts .recent-post-item,
#aside-content .card-widget,
#post,
#page {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--f1-border);
  background: var(--f1-panel);
  box-shadow: var(--f1-shadow);
  backdrop-filter: blur(16px);
}

.f1-command-main::before,
.f1-command-card::before,
.f1-command-metrics::before,
.f1-command-lanes::before,
#recent-posts .recent-post-item::before,
#aside-content .card-widget::before,
#post::before,
#page::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 168px;
  height: 5px;
  background: repeating-linear-gradient(
    90deg,
    var(--f1-red) 0 22px,
    var(--f1-ink) 22px 44px,
    transparent 44px 66px
  );
  content: "";
}

.f1-command-main,
.f1-command-card,
.f1-command-metrics,
.f1-command-lanes {
  padding: 28px;
}

.f1-command-main {
  grid-row: span 2;
  background:
    radial-gradient(circle at top right, rgba(88, 192, 255, 0.16), transparent 36%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(247, 242, 235, 0.82));
}

html[data-theme="dark"] .f1-command-main {
  background:
    radial-gradient(circle at top right, rgba(88, 192, 255, 0.14), transparent 36%),
    linear-gradient(145deg, rgba(17, 24, 39, 0.92), rgba(11, 13, 18, 0.9));
}

.f1-kicker {
  margin: 0 0 0.75rem;
  color: var(--f1-red);
  font-family: var(--f1-heading);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.f1-command-main h2 {
  margin: 0;
  max-width: 12ch;
  color: var(--f1-ink);
  font-family: var(--f1-display);
  font-size: clamp(2.8rem, 5vw, 4.7rem);
  line-height: 0.92;
  text-transform: uppercase;
}

html[data-theme="dark"] .f1-command-main h2 {
  color: #fff;
}

.f1-command-copy {
  margin: 1.35rem 0 0;
  max-width: 38rem;
  color: var(--f1-steel);
  font-size: 1.02rem;
  line-height: 1.9;
}

.f1-command-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 2rem;
}

.f1-command-button,
.f1-command-link {
  font-family: var(--f1-heading);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.f1-command-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.35rem 0.82rem;
  background: var(--f1-red);
  color: #fff !important;
  box-shadow: 8px 8px 0 var(--f1-ink);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.f1-command-button:hover {
  box-shadow: 12px 12px 0 var(--f1-ink);
  transform: translate(-4px, -4px);
}

.f1-command-link {
  align-self: center;
  padding-bottom: 4px;
  border-bottom: 2px solid var(--f1-ink);
  color: var(--f1-ink) !important;
}

html[data-theme="dark"] .f1-command-link {
  border-bottom-color: #fff;
  color: #fff !important;
}

.f1-command-number {
  display: inline-block;
  margin-bottom: 0.85rem;
  color: var(--f1-red);
  font-family: var(--f1-heading);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.f1-command-card h3 {
  margin: 0;
  color: var(--f1-ink);
  font-family: var(--f1-heading);
  font-size: 2rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

html[data-theme="dark"] .f1-command-card h3 {
  color: #fff;
}

.f1-command-card p {
  margin: 0.7rem 0 0;
  color: var(--f1-steel);
  line-height: 1.8;
}

.f1-command-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.f1-metric {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem;
  min-height: 138px;
  border-left: 3px solid var(--f1-red);
  background: rgba(17, 24, 39, 0.04);
  transition: transform 0.2s ease, background 0.2s ease;
}

html[data-theme="dark"] .f1-metric {
  background: rgba(255, 255, 255, 0.04);
}

.f1-metric:hover {
  transform: translateY(-4px);
  background: rgba(255, 24, 1, 0.08);
}

.f1-metric-label {
  color: var(--f1-muted);
  font-family: var(--f1-heading);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.f1-metric strong {
  margin-top: auto;
  color: var(--f1-ink);
  font-family: var(--f1-display);
  font-size: 3rem;
  line-height: 0.85;
}

html[data-theme="dark"] .f1-metric strong {
  color: #fff;
}

.f1-command-lanes ul {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.f1-command-lanes li {
  display: flex;
  flex-direction: column;
  gap: 0.18rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--f1-border);
}

.f1-command-lanes li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.f1-command-lanes strong {
  color: var(--f1-ink);
  font-family: var(--f1-heading);
  font-size: 1.2rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

html[data-theme="dark"] .f1-command-lanes strong {
  color: #fff;
}

.f1-command-lanes span {
  color: var(--f1-steel);
  line-height: 1.7;
}

#recent-posts .recent-post-item {
  border-top: 0;
}

#recent-posts .recent-post-info > .article-title {
  color: var(--f1-ink);
  font-family: var(--f1-heading);
  font-size: clamp(1.7rem, 2vw, 2.2rem);
  letter-spacing: 0.02em;
  line-height: 1.15;
}

html[data-theme="dark"] #recent-posts .recent-post-info > .article-title {
  color: #fff;
}

#recent-posts .recent-post-info > .article-title:hover {
  color: var(--f1-red);
}

#recent-posts .article-meta-wrap,
#post-info #post-meta {
  color: var(--f1-muted);
  font-family: var(--f1-heading);
  font-size: 0.83rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#recent-posts .content {
  color: var(--f1-steel);
  line-height: 1.85;
}

#recent-posts .post_cover {
  background: var(--f1-carbon);
}

#recent-posts .post_cover.left {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 16% 100%, 0 82%);
}

#recent-posts .post_cover.right {
  clip-path: polygon(0 0, 100% 0, 100% 82%, 84% 100%, 0 100%);
}

#recent-posts .post_cover::after {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, transparent 0 24%, var(--f1-red) 24% 64%, #fff 64% 100%);
  content: "";
}

#aside-content .card-widget {
  padding: 22px 22px 20px;
}

#aside-content .item-headline {
  color: var(--f1-ink);
  font-family: var(--f1-heading);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

html[data-theme="dark"] #aside-content .item-headline {
  color: #fff;
}

#aside-content .card-info .author-info-name {
  color: var(--f1-ink);
  font-family: var(--f1-display);
  font-size: 3rem;
  letter-spacing: 0.06em;
  line-height: 0.9;
  text-transform: uppercase;
}

html[data-theme="dark"] #aside-content .card-info .author-info-name {
  color: #fff;
}

#aside-content .card-info .author-info-description {
  color: var(--f1-steel);
  line-height: 1.8;
}

.avatar-img {
  width: 118px;
  height: 118px;
  border-radius: 0;
  box-shadow: 10px 10px 0 rgba(17, 24, 39, 0.16);
}

#card-info-btn {
  background: var(--f1-red) !important;
  box-shadow: 8px 8px 0 var(--f1-ink);
  color: #fff !important;
  font-family: var(--f1-heading);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#card-info-btn:hover {
  transform: translate(-3px, -3px);
}

.f1-widget-list,
.f1-lexicon-list {
  display: grid;
  gap: 12px;
}

.f1-widget-item,
.f1-lexicon-list > div,
.f1-mini-metric {
  padding: 14px 16px;
  border-left: 3px solid var(--f1-red);
  background: rgba(17, 24, 39, 0.04);
}

html[data-theme="dark"] .f1-widget-item,
html[data-theme="dark"] .f1-lexicon-list > div,
html[data-theme="dark"] .f1-mini-metric {
  background: rgba(255, 255, 255, 0.04);
}

.f1-widget-item span,
.f1-mini-metric span {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--f1-red);
  font-family: var(--f1-heading);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.f1-widget-item strong,
.f1-lexicon-list strong,
.f1-mini-metric strong {
  display: block;
  color: var(--f1-ink);
  font-family: var(--f1-heading);
  font-size: 1.16rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

html[data-theme="dark"] .f1-widget-item strong,
html[data-theme="dark"] .f1-lexicon-list strong,
html[data-theme="dark"] .f1-mini-metric strong {
  color: #fff;
}

.f1-lexicon-list span,
.f1-mini-metric p {
  display: block;
  margin-top: 0.45rem;
  color: var(--f1-steel);
  line-height: 1.7;
}

#post,
#page {
  padding-top: 26px;
}

#post #article-container,
#page #article-container {
  color: var(--f1-steel);
  font-size: 1rem;
  line-height: 1.95;
}

#post #article-container h1,
#post #article-container h2,
#post #article-container h3,
#post #article-container h4,
#page #article-container h1,
#page #article-container h2,
#page #article-container h3,
#page #article-container h4 {
  color: var(--f1-ink);
  font-family: var(--f1-heading);
  letter-spacing: 0.03em;
}

html[data-theme="dark"] #post #article-container h1,
html[data-theme="dark"] #post #article-container h2,
html[data-theme="dark"] #post #article-container h3,
html[data-theme="dark"] #post #article-container h4,
html[data-theme="dark"] #page #article-container h1,
html[data-theme="dark"] #page #article-container h2,
html[data-theme="dark"] #page #article-container h3,
html[data-theme="dark"] #page #article-container h4 {
  color: #fff;
}

#post #article-container h2,
#page #article-container h2 {
  padding-left: 0.9rem;
  border-left: 4px solid var(--f1-red);
  text-transform: uppercase;
}

#post #article-container a,
#page #article-container a {
  color: var(--f1-red);
  text-decoration-thickness: 2px;
}

#post #article-container blockquote,
#page #article-container blockquote {
  border-left: 4px solid var(--f1-red);
  background: rgba(255, 24, 1, 0.06);
}

.post-copyright {
  border: 1px solid var(--f1-border);
  background: rgba(17, 24, 39, 0.04);
}

.tag_share .post-meta__tags {
  margin: 0 8px 8px 0;
  padding: 0.36rem 0.74rem;
  background: var(--f1-ink);
  color: #fff;
  font-family: var(--f1-heading);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.f1-page-grid {
  display: grid;
  align-items: start;
  gap: 18px;
  margin-bottom: 1.8rem;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
}

.f1-page-panel,
.f1-page-stats {
  padding: 24px;
  border: 1px solid var(--f1-border);
  background: rgba(17, 24, 39, 0.03);
}

.f1-page-panel h2 {
  margin-top: 0;
}

.f1-page-stats {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

#footer {
  margin-top: 48px;
  background: linear-gradient(180deg, rgba(11, 13, 18, 0.98), rgba(17, 24, 39, 0.98));
}

#footer-wrap,
#footer-wrap a {
  color: rgba(255, 255, 255, 0.78);
}

@media (max-width: 900px) {
  #page-header.full_page #site-info {
    bottom: 9rem;
    width: calc(100% - 32px);
  }

  #site_social_icons {
    justify-content: center;
  }

  .f1-command-center {
    margin-top: -88px;
  }

  .f1-command-grid {
    grid-template-columns: 1fr;
  }

  .f1-command-main {
    grid-row: auto;
  }

  .f1-page-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1180px) and (min-width: 901px) {
  .f1-command-grid {
    grid-template-columns: 1fr;
  }

  .f1-command-main {
    grid-row: auto;
  }
}

@media (max-width: 768px) {
  #page-header.full_page {
    min-height: 660px;
    background-attachment: scroll;
  }

  #page-header.full_page #site-info {
    bottom: 7.2rem;
    text-align: center;
  }

  #page-header #site-title {
    max-width: none;
  }

  #site-subtitle {
    width: 100%;
    margin-right: auto;
    margin-left: auto;
    text-align: left;
  }

  #recent-posts .post_cover.left,
  #recent-posts .post_cover.right {
    clip-path: none;
  }

  .f1-command-main,
  .f1-command-card,
  .f1-command-metrics,
  .f1-command-lanes {
    padding: 22px;
  }

  .f1-command-metrics,
  .f1-page-stats {
    grid-template-columns: 1fr;
  }
}