:root {
  --blog-header-orange: #ff6900;
  --blog-header-ink: #111111;
  --blog-header-line: #dddddd;
  --blog-header-soft: #f4f4f4;
  --blog-header-white: #ffffff;
  --blog-header-height: 80px;
  --blog-header-container: 1240px;
  --blog-header-ease: cubic-bezier(.22, 1, .36, 1);
}

body.blog-page {
  padding-top: var(--blog-header-height);
}

body.blog-page.menu-open {
  overflow: hidden;
}

.blog-page .site-header,
.blog-page .site-header * {
  box-sizing: border-box;
}

.blog-page .site-header {
  position: fixed;
  z-index: 1000;
  top: 0;
  right: 0;
  left: 0;
  width: 100%;
  height: var(--blog-header-height);
  color: var(--blog-header-ink);
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid rgba(17, 17, 17, .06);
  backdrop-filter: blur(16px);
  font-family: Inter, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  transition: height .25s ease, box-shadow .25s ease, background-color .25s ease;
}

.blog-page .site-header.is-scrolled {
  box-shadow: 0 8px 30px rgba(17, 17, 17, .08);
}

.blog-page .reading-progress {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  overflow: hidden;
}

.blog-page .reading-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--blog-header-orange);
  transform: scaleX(0);
  transform-origin: left;
}

.blog-page .site-header .container {
  width: min(calc(100% - 48px), var(--blog-header-container));
  margin-inline: auto;
}

.blog-page .header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 28px;
}

.blog-page .site-header a {
  color: inherit;
  text-decoration: none;
  touch-action: manipulation;
}

.blog-page .brand {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
}

.blog-page .brand img {
  display: block;
  width: 148px;
  max-width: none;
  height: auto;
}

.blog-page .primary-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-left: auto;
}

.blog-page .primary-nav a {
  position: relative;
  padding: 8px 0;
  color: var(--blog-header-ink);
  font-size: .91rem;
  font-weight: 680;
  line-height: 1.7;
  white-space: nowrap;
}

.blog-page .primary-nav a::after {
  content: "";
  position: absolute;
  right: 100%;
  bottom: 2px;
  left: 0;
  height: 2px;
  background: var(--blog-header-orange);
  transition: right .28s var(--blog-header-ease);
}

.blog-page .primary-nav a:hover::after,
.blog-page .primary-nav a:focus-visible::after,
.blog-page .primary-nav a[aria-current="page"]::after {
  right: 0;
}

.blog-page .primary-nav a[aria-current="page"] {
  color: var(--blog-header-orange);
}

.blog-page .site-header .button {
  position: relative;
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  overflow: hidden;
  padding: 12px 22px;
  border: 1.5px solid var(--blog-header-ink);
  border-radius: 999px;
  background: transparent;
  font-size: .94rem;
  font-weight: 760;
  line-height: 1.2;
  cursor: pointer;
  transition: color .25s ease, background-color .25s ease, border-color .25s ease, transform .25s var(--blog-header-ease), box-shadow .25s ease;
}

.blog-page .site-header .button svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform .25s var(--blog-header-ease);
}

.blog-page .site-header .button--primary {
  color: var(--blog-header-white);
  border-color: var(--blog-header-orange);
  background: var(--blog-header-orange);
}

.blog-page .site-header .button:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(17, 17, 17, .16);
}

.blog-page .site-header .button--primary:hover {
  color: var(--blog-header-white);
  border-color: var(--blog-header-ink);
  background: var(--blog-header-ink);
}

.blog-page .site-header .button:hover svg {
  transform: translateX(4px);
}

.blog-page .site-header .button:focus-visible,
.blog-page .menu-toggle:focus-visible {
  outline: 3px solid rgba(255, 105, 0, .36);
  outline-offset: 4px;
}

.blog-page .header-cta {
  flex: 0 0 auto;
  min-height: 46px;
  padding-inline: 20px;
}

.blog-page .menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 11px;
  border: 0;
  border-radius: 12px;
  color: var(--blog-header-ink);
  background: var(--blog-header-soft);
  cursor: pointer;
}

.blog-page .menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  border-radius: 2px;
  background: currentColor;
  transition: transform .25s ease, opacity .25s ease;
}

.blog-page .menu-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.blog-page .menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.blog-page .menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 1120px) {
  .blog-page .header-inner {
    gap: 18px;
  }

  .blog-page .primary-nav {
    gap: 14px;
  }

  .blog-page .primary-nav a {
    font-size: .8rem;
  }

  .blog-page .header-cta {
    min-height: 42px;
    padding-inline: 14px;
    font-size: .84rem;
  }
}

@media (max-width: 900px) {
  :root {
    --blog-header-height: 72px;
  }

  .blog-page .site-header .container {
    width: min(calc(100% - 36px), var(--blog-header-container));
  }

  .blog-page .brand img {
    width: 132px;
  }

  .blog-page .menu-toggle {
    order: 3;
    display: block;
    margin-left: 0;
  }

  .blog-page .header-cta {
    order: 2;
    margin-left: auto;
  }

  .blog-page .primary-nav {
    position: fixed;
    top: var(--blog-header-height);
    right: 0;
    left: 0;
    max-height: calc(100svh - var(--blog-header-height));
    display: grid;
    gap: 0;
    overflow-y: auto;
    margin-left: 0;
    padding: 22px 24px 34px;
    border-top: 1px solid var(--blog-header-line);
    background: rgba(255, 255, 255, .98);
    box-shadow: 0 25px 45px rgba(17, 17, 17, .12);
    opacity: 0;
    transform: translateY(-16px);
    visibility: hidden;
    pointer-events: none;
    transition: opacity .25s ease, transform .25s var(--blog-header-ease), visibility .25s ease;
  }

  .blog-page .primary-nav.is-open {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
  }

  .blog-page .primary-nav a {
    padding: 16px 0;
    border-bottom: 1px solid var(--blog-header-line);
    font-size: 1rem;
  }

  .blog-page .primary-nav a::after {
    display: none;
  }
}

@media (max-width: 640px) {
  .blog-page .site-header {
    background: rgba(255, 255, 255, .98);
  }

  .blog-page .site-header .container {
    width: min(calc(100% - 32px), var(--blog-header-container));
  }

  .blog-page .header-inner {
    gap: 12px;
  }

  .blog-page .brand img {
    width: 116px;
  }

  .blog-page .header-cta {
    min-height: 42px;
    padding-inline: 12px;
    font-size: .78rem;
    gap: 6px;
  }

  .blog-page .header-cta svg {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {

  .blog-page .site-header,
  .blog-page .site-header *,
  .blog-page .site-header *::before,
  .blog-page .site-header *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}