@import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Noto+Sans+TC:wght@400;500;700&display=swap");

:root {
  color-scheme: light;
  --bg: #f8f7f4;
  --surface: #ffffff;
  --surface-glass: rgba(255, 255, 255, 0.72);
  --text: #1a1a2e;
  --text-secondary: #64648b;
  --text-tertiary: #9ca3af;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-soft: rgba(99, 102, 241, 0.07);
  --accent-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);
  --border: rgba(0, 0, 0, 0.06);
  --border-hover: rgba(99, 102, 241, 0.2);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.08);
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-full: 999px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  position: relative;
  font-family: "Plus Jakarta Sans", "Noto Sans TC", system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

body::before,
body::after {
  content: "";
  position: fixed;
  pointer-events: none;
  z-index: 0;
}

body::before {
  top: 0;
  left: 0;
  width: 30rem;
  height: 30rem;
  background: radial-gradient(circle at top left, rgba(99, 102, 241, 0.08), transparent 72%);
}

body::after {
  right: 0;
  bottom: 0;
  width: 28rem;
  height: 28rem;
  background: radial-gradient(circle at bottom right, rgba(245, 158, 11, 0.06), transparent 70%);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

a:hover {
  color: var(--accent-hover);
}

.shell {
  position: relative;
  z-index: 1;
  width: min(1160px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1rem 0 3rem;
}

.topbar,
.footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  padding: 0.75rem 1rem;
  border-radius: var(--r-lg);
  background: var(--surface-glass);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.hero,
.section,
.cta {
  padding: 1.5rem;
  margin-top: 1rem;
  border-radius: var(--r-xl);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s var(--ease);
}

.hero:hover,
.section:hover {
  box-shadow: var(--shadow-md);
}

.topbar nav,
.footer nav,
.topbar-tools,
.cta-row,
.inline-links,
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: center;
}

.topbar nav a,
.footer nav a {
  padding: 0.35rem 0.7rem;
  border-radius: var(--r-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s var(--ease);
}

.topbar nav a:hover,
.footer nav a:hover {
  background: var(--accent-soft);
  color: var(--accent);
  text-decoration: none;
}

.brand {
  display: grid;
  gap: 0.2rem;
}

.eyebrow,
.section h2,
.meta-label,
.footer-label {
  font-family: "Plus Jakarta Sans", "Noto Sans TC", sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.eyebrow {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
  font-size: 0.95rem;
}

.meta-label,
.footer-label,
.muted {
  color: var(--text-secondary);
}

.language-switcher {
  display: inline-flex;
  gap: 0.45rem;
  align-items: center;
  background: rgba(0, 0, 0, 0.04);
  border-radius: var(--r-full);
  padding: 3px;
}

.language-switcher span {
  color: var(--text-secondary);
  font-family: "Plus Jakarta Sans", "Noto Sans TC", sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0 0.4rem;
}

.language-switcher a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 4.1rem;
  min-height: 2.1rem;
  padding: 0.3rem 0.75rem;
  border: none;
  border-radius: var(--r-full);
  background: transparent;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.8rem;
  transition: all 0.2s var(--ease);
}

.language-switcher a.is-active {
  background: var(--surface);
  color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.hero-grid,
.card-grid,
.blog-grid,
.meta-grid,
.steps,
.faq-grid,
.article-grid {
  display: grid;
  gap: 0.9rem;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.85fr);
  align-items: stretch;
}

.card-grid,
.blog-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.article-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.hero-copy h1,
.hero h1 {
  margin: 0.35rem 0 0;
  font-family: "Plus Jakarta Sans", "Noto Sans TC", sans-serif;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero p,
.section p,
.card p,
.step p,
.meta-card p,
.faq p,
.blog-item p,
.article-card p,
.cta p,
li {
  color: var(--text-secondary);
  line-height: 1.72;
}

.hero-copy,
.hero-visual,
.card,
.step,
.meta-card,
.faq,
.blog-item,
.article-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--r-md);
  padding: 1.15rem;
  transition: all 0.25s var(--ease);
}

.card:hover,
.step:hover,
.meta-card:hover,
.faq:hover,
.blog-item:hover,
.article-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.hero-visual {
  display: grid;
  align-items: end;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--accent-soft), rgba(139, 92, 246, 0.04));
}

.signal-visual {
  display: grid;
  gap: 1rem;
}

.signal-head {
  display: flex;
  gap: 0.45rem;
}

.signal-head span {
  width: 0.62rem;
  height: 0.62rem;
  border-radius: var(--r-full);
  background: rgba(99, 102, 241, 0.24);
}

.signal-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
  align-items: end;
  min-height: 11rem;
}

.signal-bars {
  display: flex;
  align-items: end;
  gap: 0.45rem;
  min-height: 7rem;
}

.signal-bars span {
  flex: 1 1 0;
  border-radius: 4px 4px 0 0;
  border: 1px solid rgba(99, 102, 241, 0.15);
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.15), rgba(99, 102, 241, 0.45));
}

.signal-bars span:nth-child(1) { height: 34%; }
.signal-bars span:nth-child(2) { height: 54%; }
.signal-bars span:nth-child(3) { height: 74%; }
.signal-bars span:nth-child(4) { height: 92%; }

.signal-rings {
  position: relative;
  min-height: 8rem;
}

.signal-rings span {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  border-radius: var(--r-full);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.signal-rings span:nth-child(1) {
  width: 2.6rem;
  height: 2.6rem;
  background: rgba(99, 102, 241, 0.14);
}

.signal-rings span:nth-child(2) { width: 5.4rem; height: 5.4rem; }
.signal-rings span:nth-child(3) { width: 8rem; height: 8rem; }

.signal-track {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.45rem;
}

.signal-track i {
  display: block;
  height: 0.55rem;
  border-radius: var(--r-full);
  background: rgba(99, 102, 241, 0.15);
}

.signal-track i:nth-child(3),
.signal-track i:nth-child(4),
.signal-track i:nth-child(5) {
  background: rgba(99, 102, 241, 0.45);
}

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.1rem;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  background: var(--surface);
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  transition: all 0.2s var(--ease);
}

.chip:hover {
  border-color: var(--border-hover);
  color: var(--accent);
}

.card h3,
.step h3,
.faq h3,
.blog-item h3,
.article-card h3 {
  margin: 0 0 0.45rem;
  font-size: 1.04rem;
  font-weight: 700;
}

.card ul,
.section ol,
.section ul,
.article-card ul {
  margin: 0.65rem 0 0;
  padding-left: 1.1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.45rem;
  padding: 0.5rem 1.1rem;
  border: none;
  border-radius: var(--r-full);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s var(--ease);
}

.btn--primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.3);
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
  color: #fff;
  text-decoration: none;
}

.cta {
  background: linear-gradient(135deg, #1a1a2e, #2d2b55);
  color: rgba(255, 255, 255, 0.9);
  border-radius: var(--r-xl);
}

.cta h2 {
  color: #fff;
  font-size: 1.15rem;
}

.cta p {
  color: rgba(255, 255, 255, 0.65);
}

.section h2 {
  margin: 0 0 0.6rem;
  color: var(--accent);
}

.footer {
  margin-top: 1rem;
  color: var(--text-secondary);
  border-radius: var(--r-lg);
}

/* ── Blog Card with Image ── */
.blog-item--img {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: .85rem;
  align-items: start;
}

.blog-item__thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--r-sm, 8px);
  background: rgba(99, 102, 241, .05);
}

.blog-item__body h3 {
  margin: 0 0 .3rem;
}

.blog-item__body p {
  margin: 0;
}

@media (max-width: 600px) {
  .blog-item--img {
    grid-template-columns: 1fr;
  }

  .blog-item__thumb {
    aspect-ratio: 21 / 9;
  }
}

/* ── Pagination ── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .35rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.pagination button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  min-height: 2.25rem;
  padding: .3rem .6rem;
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  background: var(--surface);
  color: var(--text-secondary);
  font-size: .82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s var(--ease);
  font-family: inherit;
}

.pagination button:hover:not(:disabled) {
  border-color: var(--border-hover);
  color: var(--accent);
  background: var(--accent-soft);
}

.pagination button.active {
  background: var(--accent-gradient);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(99, 102, 241, .25);
}

.pagination button:disabled {
  opacity: .35;
  cursor: default;
}

.pagination__info {
  font-size: .78rem;
  color: var(--text-tertiary, #9ca3af);
  margin-left: .5rem;
}

.lang-block {
  display: none;
}

body:not([data-language]) .lang-block[data-lang-block="zh-HK"],
body[data-language="zh-HK"] .lang-block[data-lang-block="zh-HK"],
body[data-language="en"] .lang-block[data-lang-block="en"] {
  display: block;
}

body:not([data-language]) .lang-inline[data-lang-inline="zh-HK"],
body[data-language="zh-HK"] .lang-inline[data-lang-inline="zh-HK"],
body[data-language="en"] .lang-inline[data-lang-inline="en"] {
  display: inline;
}

.lang-inline {
  display: none;
}

@media (max-width: 920px) {
  .hero-grid,
  .card-grid,
  .blog-grid,
  .meta-grid,
  .steps,
  .faq-grid,
  .article-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .topbar,
  .footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .topbar nav,
  .footer nav,
  .topbar-tools,
  .cta-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .language-switcher {
    flex-wrap: wrap;
  }
}