/* WEB — Hong Kong Legal Editorial */
@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;700&family=Noto+Serif+TC:wght@600;700&display=swap");

:root {
  --color-primary: #1a6b73;
  --color-primary-deep: #0e4f58;
  --color-primary-soft: #e8f4f5;
  --color-ink: #1c1f21;
  --color-body: #3a3f42;
  --color-muted: #6b7276;
  --color-line: #d8dee2;
  --color-paper: #f7f9fa;
  --color-white: #ffffff;
  --color-warn-bg: #e8f4f5;
  --font-display: "Noto Serif TC", "Songti TC", serif;
  --font-body: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1.25rem;
  --space-lg: 2rem;
  --space-xl: 3.5rem;
  --space-2xl: 5.5rem;
  --container: 1120px;
  --header-h: 4.25rem;
  --radius: 2px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow-soft: 0 18px 40px rgba(14, 79, 88, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--color-body);
  background: var(--color-paper);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

a:hover {
  color: var(--color-primary-deep);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  color: var(--color-ink);
  line-height: 1.35;
  font-weight: 700;
  margin: 0 0 0.75rem;
}

h1 {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
}

h2 {
  font-size: clamp(1.55rem, 2.8vw, 2.15rem);
}

h3 {
  font-size: clamp(1.2rem, 2vw, 1.45rem);
}

p {
  margin: 0 0 1rem;
}

ul,
ol {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
}

.container {
  width: min(100% - 2.5rem, var(--container));
  margin-inline: auto;
}

.container-wide {
  width: min(100% - 2.5rem, 1280px);
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-ink);
}

.brand img {
  height: 40px;
  width: auto;
}

.brand-name {
  font-family: var(--font-display);
  font-size: clamp(0.95rem, 1.8vw, 1.15rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-line);
  background: var(--color-white);
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-ink);
  transition: transform 0.25s var(--ease);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.site-nav a {
  color: var(--color-ink);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.55rem 0.7rem;
  letter-spacing: 0.02em;
  position: relative;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0.7rem;
  right: 0.7rem;
  bottom: 0.3rem;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}

.site-nav a:hover::after,
.site-nav a.is-active::after {
  transform: scaleX(1);
}

.site-nav a.is-active {
  color: var(--color-primary-deep);
}

/* Hero */
.hero {
  position: relative;
  min-height: min(72vh, 640px);
  overflow: hidden;
  background: var(--color-primary-deep);
}

.hero-slides {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.1s var(--ease);
  background-size: cover;
  background-position: center;
}

.hero-slide.is-active {
  opacity: 1;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(14, 79, 88, 0.78) 0%, rgba(14, 79, 88, 0.35) 48%, rgba(28, 31, 33, 0.45) 100%),
    linear-gradient(to top, rgba(14, 79, 88, 0.55), transparent 45%);
}

.hero-content {
  position: relative;
  z-index: 2;
  min-height: min(72vh, 640px);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 4rem 0 3.25rem;
  color: var(--color-white);
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4.5vw, 3.25rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 0.35rem;
  line-height: 1.2;
}

.hero-title {
  color: var(--color-white);
  font-size: clamp(1.25rem, 2.4vw, 1.75rem);
  font-weight: 600;
  max-width: 18em;
  margin-bottom: 0.75rem;
}

.hero-lead {
  max-width: 32rem;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 1.5rem;
}

.hero-dots {
  position: absolute;
  z-index: 3;
  right: max(1.25rem, calc((100% - var(--container)) / 2));
  bottom: 1.5rem;
  display: flex;
  gap: 0.5rem;
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.7);
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.hero-dot.is-active {
  background: var(--color-white);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3rem;
  padding: 0.7rem 1.4rem;
  font-family: var(--font-body);
  font-size: 0.98rem;
  font-weight: 700;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

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

.btn-primary:hover {
  background: var(--color-primary-deep);
  color: var(--color-white);
}

.btn-outline {
  background: transparent;
  border-color: currentColor;
  color: inherit;
}

.btn-outline-dark {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary-deep);
}

.btn-outline-dark:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-light {
  background: var(--color-white);
  color: var(--color-primary-deep);
}

.btn-light:hover {
  background: var(--color-primary-soft);
  color: var(--color-primary-deep);
}

/* Sections */
.section {
  padding: var(--space-2xl) 0;
}

.section-sm {
  padding: var(--space-xl) 0;
}

.section-tint {
  background: var(--color-warn-bg);
}

.section-dark {
  position: relative;
  color: var(--color-white);
  background: var(--color-primary-deep);
  overflow: hidden;
}

.section-dark::before {
  content: "";
  position: absolute;
  inset: 0;
  background: center / cover no-repeat;
  opacity: 0.28;
  pointer-events: none;
}

.section-dark > .container {
  position: relative;
  z-index: 1;
}

.section-dark h2,
.section-dark h3 {
  color: var(--color-white);
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.65rem;
}

.section-head {
  max-width: 40rem;
  margin-bottom: var(--space-lg);
}

.section-head p {
  color: var(--color-muted);
}

.split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}

.split.reverse {
  grid-template-columns: 0.95fr 1.05fr;
}

.split.reverse .split-media {
  order: 2;
}

.split-media img,
.media-frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.media-frame {
  position: relative;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: auto -0.75rem -0.75rem auto;
  width: 42%;
  height: 42%;
  border: 1px solid var(--color-primary);
  z-index: -1;
  opacity: 0.45;
}

.bullet-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.bullet-list li {
  position: relative;
  padding: 0.45rem 0 0.45rem 1.35rem;
  border-bottom: 1px solid rgba(26, 107, 115, 0.12);
}

.bullet-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1rem;
  width: 0.55rem;
  height: 0.55rem;
  background: var(--color-primary);
}

.service-en {
  display: block;
  color: var(--color-muted);
  font-size: 0.92rem;
  margin-top: 0.1rem;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
}

.video-block .video-grid {
  margin-top: 1.75rem;
}

.split .video-grid {
  grid-template-columns: 1fr;
}

.video-embed {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #111;
  overflow: hidden;
}

.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 2rem;
}

.feature-item {
  padding: 1.5rem 1.25rem;
  background: var(--color-white);
  border-top: 3px solid var(--color-primary);
}

.feature-item h3 {
  font-size: 1.15rem;
}

.feature-item p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: grid;
  gap: 1rem;
}

.steps li {
  counter-increment: step;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.15rem 1.25rem;
  background: var(--color-white);
  border: 1px solid var(--color-line);
}

.steps li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.doc-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.doc-list li {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--color-line);
}

.doc-list li::before {
  content: "✓";
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.55rem;
}

.gallery-item {
  appearance: none;
  border: 0;
  padding: 0;
  background: transparent;
  cursor: zoom-in;
  overflow: hidden;
  aspect-ratio: 1;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s var(--ease);
}

.gallery-item:hover img,
.gallery-item:focus-visible img {
  transform: scale(1.06);
}

.gallery-item:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(10, 18, 20, 0.92);
  padding: 1.5rem;
}

.lightbox.is-open {
  display: flex;
}

.lightbox-inner {
  position: relative;
  width: min(100%, 960px);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.lightbox-inner img {
  max-height: min(78vh, 820px);
  width: auto;
  max-width: 100%;
  object-fit: contain;
  box-shadow: var(--shadow-soft);
}

.lightbox-meta {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.95rem;
}

.lightbox-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.lightbox-prev {
  left: max(0.5rem, calc(50% - 520px));
}

.lightbox-next {
  right: max(0.5rem, calc(50% - 520px));
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  color: #fff;
  font-size: 1.75rem;
  cursor: pointer;
}

/* FAQ */
.faq-list {
  display: grid;
  gap: 0.75rem;
}

.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-line);
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 1.1rem 1.25rem;
  font-weight: 700;
  color: var(--color-ink);
  font-family: var(--font-display);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  float: right;
  color: var(--color-primary);
  font-family: var(--font-body);
  font-weight: 700;
}

.faq-item[open] summary::after {
  content: "–";
}

.faq-item p {
  margin: 0;
  padding: 0 1.25rem 1.2rem;
  color: var(--color-body);
}

/* Blog cards */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.blog-card {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  color: inherit;
  border: 1px solid var(--color-line);
  overflow: hidden;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.blog-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
  color: inherit;
}

.blog-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.blog-card-body {
  padding: 1.15rem 1.2rem 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1;
}

.blog-date {
  font-size: 0.82rem;
  color: var(--color-muted);
  letter-spacing: 0.04em;
}

.blog-card h3 {
  font-size: 1.1rem;
  margin: 0;
}

.blog-card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.92rem;
}

/* Page hero (inner) */
.page-hero {
  padding: 3.5rem 0 2.5rem;
  background:
    linear-gradient(135deg, rgba(232, 244, 245, 0.95), rgba(247, 249, 250, 0.9)),
    radial-gradient(circle at 90% 10%, rgba(26, 107, 115, 0.18), transparent 40%);
  border-bottom: 1px solid var(--color-line);
}

.page-hero h1 {
  margin-bottom: 0.4rem;
}

.page-hero p {
  margin: 0;
  max-width: 36rem;
  color: var(--color-muted);
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 2.5rem;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.contact-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-line);
}

.contact-list strong {
  display: block;
  font-family: var(--font-display);
  color: var(--color-ink);
  margin-bottom: 0.25rem;
}

.form-stack {
  display: grid;
  gap: 1rem;
}

.form-field label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 0.35rem;
}

.form-field input,
.form-field textarea {
  width: 100%;
  border: 1px solid var(--color-line);
  background: var(--color-white);
  padding: 0.85rem 1rem;
  font: inherit;
  color: var(--color-ink);
}

.form-field input:focus,
.form-field textarea:focus {
  outline: 2px solid rgba(26, 107, 115, 0.35);
  border-color: var(--color-primary);
}

.form-field textarea {
  min-height: 160px;
  resize: vertical;
}

.form-note {
  font-size: 0.88rem;
  color: var(--color-muted);
  margin: 0;
}

.form-success {
  display: none;
  padding: 1rem;
  background: var(--color-primary-soft);
  color: var(--color-primary-deep);
  border: 1px solid rgba(26, 107, 115, 0.25);
}

.form-success.is-visible {
  display: block;
}

/* Article */
.article {
  max-width: 720px;
  margin: 0 auto;
}

.article-meta {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.article-cover {
  margin: 0 0 2rem;
}

.article-cover img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.article-body p {
  margin-bottom: 1.15rem;
}

.article-body h2 {
  margin-top: 2rem;
  font-size: 1.35rem;
}

.article-nav {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-line);
}

/* Footer */
.site-footer {
  background: var(--color-ink);
  color: rgba(255, 255, 255, 0.78);
  padding: 3.5rem 0 1.5rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.site-footer h3 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.78);
}

.site-footer a:hover {
  color: #fff;
}

.footer-nav {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.45rem;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.65rem);
  color: #fff;
  letter-spacing: 0.04em;
  margin-bottom: 0.75rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1.25rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.88rem;
}

/* Floating WhatsApp */
.float-wa {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 90;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: 0 10px 28px rgba(37, 211, 102, 0.4);
  transition: transform 0.25s var(--ease);
}

.float-wa:hover {
  transform: scale(1.06);
  color: #fff;
}

.float-wa svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* CTA band */
.cta-band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 1.75rem;
  background: var(--color-primary-deep);
  color: #fff;
}

.cta-band h3 {
  color: #fff;
  margin: 0;
  font-size: 1.2rem;
}

.cta-band p {
  margin: 0.25rem 0 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.92rem;
}

/* Utility */
.mt-lg {
  margin-top: var(--space-lg);
}

.mb-0 {
  margin-bottom: 0;
}

.text-center {
  text-align: center;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

body.is-menu-open {
  overflow: hidden;
}

/* Responsive */
@media (max-width: 1024px) {
  .split,
  .split.reverse {
    grid-template-columns: 1fr;
  }

  .split.reverse .split-media {
    order: 0;
  }

  .gallery-grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: calc(100dvh - var(--header-h));
    background: #ffffff;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    gap: 0.25rem;
    transform: translateX(100%);
    transition: transform 0.3s var(--ease);
    border-top: 1px solid var(--color-line);
    z-index: 200;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .site-nav.is-open {
    transform: none;
  }

  .site-nav a {
    padding: 0.9rem 0.75rem;
    border-bottom: 1px solid var(--color-line);
    color: var(--color-ink);
  }

  .hero {
    min-height: 58vh;
  }

  .hero-content {
    min-height: 58vh;
    padding-bottom: 3.5rem;
  }

  .video-grid,
  .feature-grid,
  .contact-grid,
  .blog-grid {
    grid-template-columns: 1fr;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .lightbox-prev {
    left: 0.25rem;
  }

  .lightbox-next {
    right: 0.25rem;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}