*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --white: #F0F4F8;
  --gray-100: #E2EAF2;
  --gray-200: #C8D6E5;
  --text: #0D1B2A;
  --text-muted: #4A6080;
  --navy: #07152A;
  --navy-mid: #0f2744;
  --ice: #C8E8F5;
  --blue: #1568B4;
  --cyan: #00B8D9;
  --accent: #00D4FF;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; }
body { font-family: 'Noto Sans TC', sans-serif; color: var(--text); background: var(--white); line-height: 1.7; }

/* ===== NAV ===== */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(240, 244, 248, 0.96);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--gray-200);
}
.nav-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 2.5rem; height: 68px;
}
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo-mark {
  width: 40px; height: 40px;
  border: 1.5px solid var(--blue);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  background: var(--ice);
}
.logo-mark svg { width: 18px; height: 18px; fill: var(--blue); position: relative; z-index: 1; }
.logo-text { font-family: 'Oswald', sans-serif; font-size: 1rem; font-weight: 500; color: var(--navy); letter-spacing: 0.05em; }
.logo-text span { display: block; font-family: 'Noto Sans TC', sans-serif; font-size: 0.6rem; color: var(--blue); letter-spacing: 0.1em; }
.nav-links { display: flex; align-items: center; gap: 2.5rem; list-style: none; }
.nav-links a { color: var(--text-muted); text-decoration: none; font-size: 0.82rem; letter-spacing: 0.06em; transition: 0.3s; }
.nav-links a:hover { color: var(--navy); }
.nav-cta {
  border: 1.5px solid var(--navy) !important;
  color: var(--navy) !important;
  padding: 8px 22px !important;
  letter-spacing: 0.08em;
  transition: all 0.3s !important;
}
.nav-cta:hover { background: var(--navy) !important; color: #fff !important; }

/* ===== HERO ===== */
#hero {
  min-height: 100vh;
  background: var(--white);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero-scanlines {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(var(--gray-200) 1px, transparent 1px),
    linear-gradient(90deg, var(--gray-200) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: 0.45;
  pointer-events: none;
}

.hero-slash {
  position: absolute;
  top: -10%; right: -10%;
  width: 44%; height: 120%;
  background: var(--ice);
  transform: skewX(-8deg);
  z-index: 0;
  border-left: 2px solid var(--cyan);
  opacity: 0.55;
}
.hero-slash-2 {
  position: absolute;
  top: -10%; right: 6%;
  width: 30%; height: 120%;
  background: var(--gray-100);
  transform: skewX(-8deg);
  z-index: 0;
  border-left: 1px solid var(--gray-200);
  opacity: 0.7;
}

.hero-bracket {
  position: absolute;
  width: 60px; height: 60px;
  z-index: 2; pointer-events: none;
}
.hero-bracket.tl { top: 12%; left: 5%; border-top: 2px solid var(--cyan); border-left: 2px solid var(--cyan); opacity: 0.4; }
.hero-bracket.br { bottom: 12%; right: 5%; border-bottom: 2px solid var(--cyan); border-right: 2px solid var(--cyan); opacity: 0.4; }

.hero-dots {
  position: absolute;
  top: 0; right: 0;
  width: 50%; height: 100%;
  background-image: radial-gradient(circle, rgba(21,104,180,0.18) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to left, rgba(0,0,0,0.6) 0%, transparent 70%);
  -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.6) 0%, transparent 70%);
  z-index: 0;
}

.hero-inner {
  position: relative; z-index: 1;
  max-width: 1280px; margin: 0 auto;
  padding: 10rem 2.5rem 5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  width: 100%;
}

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: 'Oswald', sans-serif;
  font-size: 0.72rem; font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--blue);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s ease-out forwards;
}
.hero-eyebrow::before {
  content: '';
  width: 32px; height: 1px;
  background: var(--cyan);
}

.hero-title {
  font-family: 'Oswald', sans-serif;
  font-size: clamp(3.5rem, 6.5vw, 6rem);
  font-weight: 700;
  line-height: 1.0;
  color: var(--navy);
  letter-spacing: -0.01em;
  margin-bottom: 1.8rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.4s ease-out forwards;
}
.hero-title .line-accent {
  color: transparent;
  -webkit-text-stroke: 2px var(--blue);
  display: block;
}
.hero-title .line-main { display: block; }
.hero-title .line-sub {
  font-size: 0.42em;
  font-weight: 400;
  letter-spacing: 0.25em;
  color: var(--text-muted);
  display: block;
  margin-top: 0.5rem;
}

.hero-desc {
  font-family: 'Noto Sans TC', sans-serif;
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 440px;
  opacity: 0;
  animation: fadeUp 0.8s 0.6s ease-out forwards;
}

.hero-actions {
  display: flex; gap: 1rem; flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s 0.8s ease-out forwards;
}

.btn-primary {
  background: var(--navy);
  color: #fff;
  padding: 15px 36px;
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all 0.3s;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 100%, 12px 100%);
}
.btn-primary:hover { background: var(--blue); transform: translateY(-2px); }

.btn-outline {
  border: 1.5px solid var(--gray-200);
  color: var(--navy);
  padding: 15px 32px;
  font-family: 'Oswald', sans-serif;
  font-weight: 400;
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all 0.3s;
}
.btn-outline:hover { border-color: var(--blue); color: var(--blue); }

.hero-stats {
  display: flex; gap: 3rem;
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--gray-200);
  opacity: 0;
  animation: fadeUp 0.8s 1s ease-out forwards;
}
.hero-stat-num {
  font-family: 'Oswald', sans-serif;
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
  margin-bottom: 0.35rem;
}
.hero-stat-num span { color: var(--blue); }
.hero-stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

/* Right panel */
.hero-panel {
  position: relative;
  opacity: 0;
  animation: fadeIn 1s 0.5s ease-out forwards;
}
.panel-main {
  background: #fff;
  border: 1px solid var(--gray-200);
  padding: 2.5rem;
  position: relative;
  box-shadow: 0 4px 24px rgba(21,104,180,0.06);
}
.panel-main::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
}
.panel-tag {
  font-family: 'Oswald', sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--blue);
  margin-bottom: 1.8rem;
  opacity: 0.6;
  text-align: center;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--gray-100);
}
.panel-services { display: flex; flex-direction: column; gap: 1px; }
.panel-service-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  border-bottom: 1px solid var(--gray-100);
  cursor: default;
  transition: all 0.2s;
}
.panel-service-item:last-child { border-bottom: none; }
.panel-service-item:hover .psi-name { color: var(--blue); }
.psi-num {
  font-family: 'Oswald', sans-serif;
  font-size: 0.7rem;
  color: var(--gray-200);
  width: 28px;
}
.psi-name {
  flex: 1;
  font-family: 'Noto Sans TC', sans-serif;
  font-size: 0.92rem;
  color: var(--text);
  transition: color 0.2s;
}
.psi-bar {
  width: 80px; height: 2px;
  background: var(--gray-100);
  position: relative;
  overflow: hidden;
  border-radius: 2px;
}
.psi-fill {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  border-radius: 2px;
  animation: barGrow 1.5s ease-out forwards;
  transform-origin: left;
  transform: scaleX(0);
}
@keyframes barGrow { to { transform: scaleX(1); } }

.panel-cert {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  gap: 1rem;
}
.cert-icon {
  width: 44px; height: 44px;
  border: 1.5px solid var(--cyan);
  background: var(--ice);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.cert-icon svg { width: 20px; height: 20px; fill: var(--blue); }
.cert-title {
  font-family: 'Oswald', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  color: var(--blue);
}
.cert-sub {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.panel-corner { position: absolute; width: 20px; height: 20px; }
.panel-corner.tr { top: -1px; right: -1px; border-top: 2px solid var(--cyan); border-right: 2px solid var(--cyan); }
.panel-corner.bl { bottom: -1px; left: -1px; border-bottom: 2px solid var(--cyan); border-left: 2px solid var(--cyan); }

.data-chip {
  position: absolute;
  left: -2.5rem; top: 50%;
  transform: translateY(-50%);
  background: var(--navy);
  padding: 0.9rem 1.2rem;
  border-left: 3px solid var(--cyan);
  animation: floatChip 5s ease-in-out infinite;
}
.chip-val {
  font-family: 'Oswald', sans-serif;
  font-size: 1.6rem; font-weight: 600;
  color: #fff; line-height: 1;
}
.chip-val span { color: var(--cyan); }
.chip-label { font-size: 0.68rem; color: rgba(255,255,255,0.5); margin-top: 2px; }

@keyframes floatChip {
  0%, 100% { transform: translateY(-50%) translateX(0); }
  50% { transform: translateY(-50%) translateX(-8px); }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Ticker */
.hero-ticker {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 44px;
  background: var(--navy);
  overflow: hidden;
  display: flex; align-items: center;
  z-index: 2;
}
.ticker-inner {
  display: flex; gap: 0;
  white-space: nowrap;
  animation: tickerScroll 28s linear infinite;
}
.ticker-item {
  font-family: 'Oswald', sans-serif;
  font-size: 0.72rem; font-weight: 400;
  letter-spacing: 0.15em;
  color: rgba(255,255,255,0.45);
  padding: 0 3rem;
  display: flex; align-items: center; gap: 1.5rem;
}
.ticker-dot { width: 3px; height: 3px; background: var(--cyan); border-radius: 50%; opacity: 0.6; }
@keyframes tickerScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-25%); }
}

/* ===== SECTION COMMON ===== */
section { padding: 6rem 2rem; }
.container { max-width: 1280px; margin: 0 auto; }
.section-label {
  font-size: 0.72rem; color: var(--blue); font-weight: 700;
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 0.5rem; letter-spacing: 0.15em;
}
.section-label::before { content: ''; width: 28px; height: 2px; background: var(--cyan); }
.section-title {
  font-family: 'Oswald', sans-serif;
  font-size: 2.6rem; font-weight: 700;
  color: var(--navy); margin-bottom: 1.5rem; letter-spacing: -0.01em;
}

/* ===== ABOUT ===== */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.about-img-main {
  background: var(--gray-100);
  aspect-ratio: 4/3;
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.about-img-main::before {
  content: ''; position: absolute;
  top: -8px; left: -8px; right: 8px; bottom: 8px;
  border: 1px solid var(--cyan); opacity: 0.3; z-index: 0;
}
.about-badge-float {
  position: absolute;
  bottom: -1.5rem; right: -1.5rem;
  background: var(--navy); color: #fff;
  font-family: 'Oswald', sans-serif;
  font-size: 1.8rem; font-weight: 700;
  padding: 1rem 1.5rem; line-height: 1;
}
.about-text { color: var(--text-muted); line-height: 1.9; font-size: 0.95rem; }

/* ===== PORTFOLIO ===== */
.project-swiper { padding-bottom: 4rem; }
.project-card { border-radius: 0; overflow: hidden; background: #fff; border: 1px solid var(--gray-200); transition: 0.3s; }
.project-card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; transition: 0.5s; }
.project-card:hover img { transform: scale(1.05); }
.p-info { padding: 1rem; font-weight: 700; color: var(--navy); font-family: 'Oswald', sans-serif; font-size: 0.95rem; letter-spacing: 0.05em; }

/* ===== CERT ===== */
.cert-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.cert-tags { margin-top: 1.5rem; }
.tag-item { display: block; color: var(--blue); font-weight: 600; margin-bottom: 0.5rem; }
.cert-frame {
  background: #fff; padding: 15px;
  border: 1px solid var(--gray-200);
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
  transform: rotate(2deg); transition: 0.3s; position: relative;
}
.cert-frame:hover { transform: rotate(0deg); }
.cert-frame img { width: 100%; height: auto; display: block; }
.cert-gloss { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(255,255,255,0.4) 0%, transparent 50%); pointer-events: none; }

/* ===== SERVICES ===== */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.service-card { background: #fff; border: 1px solid var(--gray-200); padding: 2rem; transition: 0.3s; }
.service-card.featured { background: var(--navy); color: #fff; }
.service-card h3 { margin-bottom: 0.6rem; font-family: 'Oswald', sans-serif; font-weight: 600; font-size: 1.1rem; color: var(--navy); }
.service-card.featured h3 { color: #fff; }
.service-card p { font-size: 0.88rem; color: var(--text-muted); }
.service-card.featured p { color: rgba(255,255,255,0.6); }
.service-icon-wrap { width: 50px; height: 50px; background: var(--ice); display: flex; align-items: center; justify-content: center; margin-bottom: 1rem; }
.service-card.featured .service-icon-wrap { background: rgba(255,255,255,0.1); }

/* ===== CONTACT ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 4rem; }
.contact-card { margin-bottom: 1.2rem; }
.contact-card strong { display: block; font-size: 0.78rem; letter-spacing: 0.08em; color: var(--text-muted); margin-bottom: 0.2rem; }
.contact-card span { font-size: 1rem; color: var(--text); }
.contact-form-block { background: var(--gray-100); padding: 2.5rem; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.78rem; margin-bottom: 0.4rem; color: var(--text-muted); }
.form-group input, .form-group textarea {
  width: 100%; padding: 12px;
  border: 1px solid var(--gray-200); border-radius: 0;
  background: #fff; font-family: 'Noto Sans TC', sans-serif; font-size: 0.9rem;
}
.form-submit {
  width: 100%; background: var(--navy); color: #fff;
  border: none; padding: 15px;
  font-family: 'Oswald', sans-serif; font-size: 0.95rem;
  letter-spacing: 0.15em; cursor: pointer; transition: background 0.3s;
}
.form-submit:hover { background: var(--blue); }

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(30px); transition: 0.8s ease-out; }
.reveal.visible { opacity: 1; transform: translateY(0); }

footer {
  background: var(--navy); color: rgba(255,255,255,0.35);
  padding: 3rem 2rem; text-align: center;
  font-size: 0.82rem; letter-spacing: 0.08em;
}

/* ===== RWD ===== */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.nav-hamburger span {
  width: 24px; height: 2px;
  background: var(--navy);
  transition: 0.3s;
  display: block;
}

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: fixed; top: 68px; left: 0; right: 0;
    background: rgba(240,244,248,0.98);
    backdrop-filter: blur(16px);
    padding: 1.5rem 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--gray-200);
    z-index: 99;
  }
  .nav-hamburger { display: flex; }

  .hero-inner { grid-template-columns: 1fr; }
  .hero-panel { display: none; }
  .data-chip { display: none; }
  .about-grid, .cert-grid, .contact-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: clamp(2.8rem, 10vw, 3.5rem); }
  .hero-content { padding: 0 1rem; }
  .hero-desc { font-size: 0.88rem; max-width: 100%; }
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-outline { width: 100%; justify-content: center; }
  .hero-stats { gap: 1.5rem; flex-wrap: wrap; }
  .hero-stat-num { font-size: 2rem; }
}

/* ===== BRAND SIDEBAR ===== */
.brand-sidebar {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.brand-sidebar.left { left: 16px; }
.brand-sidebar.right { right: 16px; }
.brand-sidebar-label {
  font-size: 9px;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  writing-mode: vertical-rl;
  margin-bottom: 6px;
  opacity: 0.5;
}
.brand-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 68px;
  padding: 14px 8px;
  background: rgba(255,255,255,0.95);
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  text-decoration: none;
  color: var(--navy);
  transition: all 0.2s ease;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}
.brand-item:hover {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(21,104,180,0.3);
}
.brand-item span {
  font-size: 16px;
  font-weight: 700;
  font-family: 'Noto Sans TC', sans-serif;
}
.brand-item small {
  font-size: 9px;
  letter-spacing: 0.08em;
  opacity: 0.6;
  margin-top: 3px;
}
@media (max-width: 900px) {
  .brand-sidebar { display: none; }
}