/* 中文站：科技感＋商業感 — 深藍黑底、藍青重點、玻璃態卡片、hover 發光 */
/* 信任區數字遞增：@property + counter（參考 https://css-tricks.com/animating-number-counters/） */
@property --trust-num {
  syntax: "<integer>";
  initial-value: 0;
  inherits: false;
}

:root {
  --color-primary: #7dd3fc;
  --color-primary-dark: #38bdf8;
  --color-accent: #22d3ee;
  --color-bg: #060b14;
  --color-bg-alt: #0a1628;
  --color-panel: rgba(16, 32, 56, 0.58);
  --color-text: #f1f5f9;
  --color-muted: #94a3b8;
  --color-border: rgba(56, 189, 248, 0.22);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-shine: rgba(255, 255, 255, 0.07);
  --glow-cyan: 0 0 36px rgba(34, 211, 238, 0.28);
  --glow-card-hover: 0 0 32px rgba(34, 211, 238, 0.18);
  --header-h: 72px;
  --font: "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  --shadow: 0 16px 48px rgba(0, 0, 0, 0.42);
  --radius: 8px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    radial-gradient(ellipse 100% 70% at 12% -15%, rgba(14, 165, 233, 0.18), transparent 55%),
    radial-gradient(ellipse 75% 55% at 92% 5%, rgba(45, 212, 191, 0.1), transparent 50%),
    radial-gradient(ellipse 55% 45% at 50% 105%, rgba(8, 47, 73, 0.45), transparent 55%),
    linear-gradient(180deg, #050a12 0%, #0a1628 42%, #060b14 100%);
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  color: #67e8f9;
}

img,
video,
iframe {
  max-width: 100%;
}

img {
  height: auto;
}

.container {
  width: min(1120px, 100% - 40px);
  margin-inline: auto;
}

.container.narrow {
  width: min(800px, 100% - 40px);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 11, 20, 0.72);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.38), inset 0 1px 0 var(--glass-shine);
  backdrop-filter: saturate(140%) blur(18px);
  -webkit-backdrop-filter: saturate(140%) blur(18px);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1200px, 100% - 32px);
  margin-inline: auto;
  min-height: var(--header-h);
  gap: 1rem;
}

.brand {
  display: flex;
  flex-direction: row;
  align-items: center;
  line-height: 1.2;
  color: var(--color-text);
  text-decoration: none;
  flex: 0 1 auto;
  min-width: 0;
}

.brand-logo {
  display: block;
  flex-shrink: 0;
  height: clamp(36px, 5.5vw, 48px);
  width: clamp(36px, 5.5vw, 48px);
  object-fit: contain;
  object-position: center;
}

.brand-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.06rem;
  min-width: 0;
  margin-inline-start: 0.55rem;
}

.brand:hover {
  text-decoration: none;
  color: var(--color-primary);
}

.brand-name {
  display: block;
  font-size: clamp(0.88rem, 2vw, 1.1rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  max-width: min(220px, 48vw);
  line-height: 1.2;
}

.brand-en {
  display: block;
  font-size: clamp(0.55rem, 1.35vw, 0.65rem);
  font-weight: 500;
  color: var(--color-muted);
  letter-spacing: 0.06em;
  line-height: 1.25;
  max-width: min(240px, 58vw);
}

/* 頁首品牌：與內頁一致 — 白字主副標（勿用內文 muted 灰，首頁易與快取舊版 CSS 疊出不同外觀） */
.site-header .brand-name,
.site-header .brand-en {
  transition: color 0.2s ease;
}

.site-header .brand-name {
  color: #f1f5f9;
}

.site-header .brand:hover .brand-name {
  color: var(--color-primary);
}

.site-header .brand-en {
  color: rgba(241, 245, 249, 0.86);
  font-weight: 600;
  font-size: clamp(0.58rem, 1.45vw, 0.7rem);
  letter-spacing: 0.07em;
}

.site-header .brand:hover .brand-en {
  color: rgba(125, 211, 252, 0.95);
}

/* Nav */
.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav > ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0;
}

.main-nav > ul > li > a {
  display: block;
  padding: 0.6rem 0.85rem;
  color: rgba(241, 245, 249, 0.92);
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: var(--radius);
  transition: color 0.25s ease, background-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.main-nav > ul > li > a:hover {
  background: rgba(56, 189, 248, 0.12);
  text-decoration: none;
  color: var(--color-primary);
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.12);
}

@media (hover: hover) {
  .main-nav > ul > li > a:hover {
    transform: translateY(-1px);
  }
}

.main-nav .has-sub {
  position: relative;
}

.main-nav .submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: rgba(12, 22, 40, 0.92);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow), var(--glow-card-hover);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 0.35rem 0;
}

.main-nav .has-sub:hover .submenu,
.main-nav .has-sub:focus-within .submenu {
  display: block;
}

.main-nav .submenu a {
  display: block;
  padding: 0.45rem 1rem;
  color: var(--color-text);
  font-size: 0.9rem;
  transition: color 0.22s ease, background-color 0.22s ease, transform 0.22s ease, padding-left 0.22s ease;
}

.main-nav .submenu a:hover {
  background: rgba(56, 189, 248, 0.1);
  text-decoration: none;
  color: var(--color-primary);
}

@media (hover: hover) {
  .main-nav .submenu a:hover {
    transform: translateX(4px);
    padding-left: 1.15rem;
  }
}

.main-nav .submenu a[aria-current="page"] {
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(56, 189, 248, 0.14);
}

/* 服務項目 Mega Menu（多欄分類，風格參考 Design In DC）
   has-mega 用 static，讓 .mega-menu 的 absolute 以 .header-inner 為參考，
   避免以窄 li 置中導致選單超出視窗造成橫向捲軸 */
.main-nav .has-mega {
  position: static;
}

.has-mega > a {
  position: relative;
  padding-right: 1.4rem;
}

@media (min-width: 769px) {
  .has-mega > a::after {
    content: "";
    position: absolute;
    right: 0.55rem;
    top: 50%;
    width: 0.38em;
    height: 0.38em;
    margin-top: -0.28em;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    opacity: 0.55;
    pointer-events: none;
  }
}

.mega-menu {
  display: none;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: min(1100px, calc(100vw - 2.5rem));
  z-index: 120;
  padding-top: 0.45rem;
}

@media (min-width: 769px) {
  .has-mega:hover .mega-menu,
  .has-mega:focus-within .mega-menu {
    display: block;
  }
}

.mega-menu__inner {
  background: rgba(10, 20, 38, 0.94);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  box-shadow:
    0 24px 56px rgba(0, 0, 0, 0.5),
    0 0 40px rgba(34, 211, 238, 0.08),
    inset 0 1px 0 var(--glass-shine);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 1.2rem 1.35rem 1.4rem;
}

.mega-menu__all {
  display: block;
  margin-bottom: 1.05rem;
  padding-bottom: 0.95rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

.mega-menu__all:hover {
  color: #a5f3fc;
  text-decoration: none;
}

.mega-menu__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.1rem 1.35rem;
}

.mega-menu__cat {
  margin: 0 0 0.55rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #67e8f9;
  line-height: 1.35;
}

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

.mega-menu__list li {
  margin: 0 0 0.3rem;
}

.mega-menu__list a {
  display: block;
  padding: 0.26rem 0;
  font-size: 0.875rem;
  line-height: 1.45;
  color: var(--color-text);
  text-decoration: none;
  border-radius: 4px;
  transition: color 0.2s ease, transform 0.2s ease, padding-left 0.2s ease;
}

.mega-menu__list a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

@media (hover: hover) {
  .mega-menu__list a:hover {
    transform: translateX(3px);
    padding-left: 0.15rem;
  }
}

.mega-menu__list a[aria-current="page"] {
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(56, 189, 248, 0.12);
  padding-left: 0.35rem;
  margin-left: -0.35rem;
  border-radius: 4px;
}

@media (max-width: 1024px) and (min-width: 769px) {
  .mega-menu {
    width: min(720px, calc(100vw - 2rem));
  }

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

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  background: rgba(16, 32, 56, 0.65);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin-inline: auto;
  background: var(--color-primary);
}

/* Home carousel (首頁輪播) */
.home-carousel {
  position: relative;
  overflow: hidden;
  --carousel-h: clamp(300px, 46vw, 500px);
  color: #f8fafc;
}

.home-carousel__slides {
  position: relative;
  min-height: var(--carousel-h);
  overflow: hidden;
}

.home-carousel__slide {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  align-items: flex-end;
  padding: 2.5rem 0 3.25rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.65s ease, visibility 0.65s ease;
}

.home-carousel__slide.is-active {
  z-index: 1;
  opacity: 1;
  visibility: visible;
}

.home-carousel__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-color: var(--color-primary-dark);
  background-size: cover;
  background-position: center;
  transform: scale(1.02);
}

/* AI 風格網格（首頁輪播，靈感近似 CodePen「AI Loading」類視覺） */
.home-carousel__ai-fx {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.92;
}

.home-carousel__slide.is-active .home-carousel__bg {
  animation: home-carousel-ken 14s ease-out forwards;
}

@keyframes home-carousel-ken {
  from {
    transform: scale(1.02);
  }
  to {
    transform: scale(1.06);
  }
}

.home-carousel__overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(
    105deg,
    rgba(8, 47, 73, 0.88) 0%,
    rgba(12, 74, 110, 0.55) 45%,
    rgba(15, 23, 42, 0.35) 100%
  );
  pointer-events: none;
}

.home-carousel__inner {
  position: relative;
  z-index: 3;
  width: min(1200px, 100% - 32px);
  margin-inline: auto;
  padding-inline: 4px;
}

.home-carousel__title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.35rem, 3.2vw, 2rem);
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.home-carousel__desc {
  margin: 0 0 1.1rem;
  max-width: 36rem;
  font-size: clamp(0.9rem, 1.8vw, 1.05rem);
  line-height: 1.6;
  color: rgba(241, 245, 249, 0.95);
}

.home-carousel__cta {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.15rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: #082f49;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.96);
  border-radius: var(--radius);
  border: 1px solid rgba(56, 189, 248, 0.35);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2), 0 0 24px rgba(34, 211, 238, 0.15);
}

.home-carousel__cta:hover {
  text-decoration: none;
  background: #fff;
  color: #0c4a6e;
  box-shadow: 0 6px 32px rgba(0, 0, 0, 0.25), 0 0 32px rgba(34, 211, 238, 0.28);
}

.home-carousel__slide--lead {
  padding-bottom: 2rem;
}

.home-carousel__inner--lead {
  align-self: flex-end;
}

.home-carousel__glass {
  max-width: min(40rem, 100%);
  padding: 1.15rem 1.25rem 1.2rem;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: calc(var(--radius) + 6px);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.home-carousel__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0 0 0.65rem;
  padding: 0.28rem 0.65rem 0.28rem 0.5rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: rgba(241, 245, 249, 0.95);
  background: rgba(15, 23, 42, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
}

.home-carousel__badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.25);
}

.home-carousel__slide--lead .home-carousel__title {
  font-size: clamp(1.35rem, 3.5vw, 2.15rem);
  line-height: 1.28;
}

.home-carousel__title-accent {
  background: linear-gradient(105deg, #7dd3fc 0%, #a78bfa 48%, #f472b6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.home-carousel__slide--lead .home-carousel__desc {
  max-width: 38rem;
  margin-bottom: 1rem;
}

.home-carousel__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.home-carousel__cta-ico {
  margin-right: 0.2rem;
  font-size: 0.95em;
  line-height: 1;
}

.home-carousel__cta--primary {
  color: #fff;
  background: linear-gradient(180deg, #0284c7 0%, #0369a1 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 4px 18px rgba(2, 132, 199, 0.38);
}

.home-carousel__cta--primary:hover {
  color: #fff;
  background: linear-gradient(180deg, #0ea5e9 0%, #0284c7 100%);
}

.home-carousel__cta--secondary {
  color: #f8fafc;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: none;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.home-carousel__cta--secondary:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.75);
}

.home-carousel__trust {
  position: relative;
  z-index: 6;
  padding: 0.85rem 16px 1rem;
  background: linear-gradient(
    180deg,
    rgba(8, 47, 73, 0.35) 0%,
    rgba(8, 47, 73, 0.92) 100%
  );
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.home-carousel__trust-lead {
  max-width: 52rem;
  margin: 0 auto 0.65rem;
  font-size: clamp(0.82rem, 1.65vw, 0.95rem);
  line-height: 1.5;
  color: rgba(226, 232, 240, 0.95);
  text-align: center;
}

.home-carousel__trust-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  justify-content: center;
  align-items: stretch;
  max-width: 720px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
}

.home-carousel__trust-stats > li {
  flex: 1 1 140px;
  min-width: min(140px, 100%);
  padding: 0.55rem 0.75rem;
  text-align: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
}

.home-carousel__trust-value {
  display: inline-flex;
  align-items: baseline;
  justify-content: center;
  gap: 0;
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
  font-variant-numeric: tabular-nums;
}

.home-carousel__trust-num {
  display: inline-block;
  min-width: 2.75ch;
  text-align: center;
  opacity: 0;
  --trust-num: 0;
  counter-reset: trust-n var(--trust-num);
  animation-duration: 1.2s;
  animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
  animation-fill-mode: forwards;
  animation-play-state: paused;
  transition: opacity 0.25s ease;
}

.home-carousel__trust-suffix {
  font-size: inherit;
  font-weight: 700;
  line-height: 1;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.home-carousel__trust-num::after {
  content: counter(trust-n);
}

.home-carousel__trust-num--100 {
  min-width: 3.25ch;
  animation-name: home-carousel-trust-to-100;
}

.home-carousel__trust-num--3 {
  animation-name: home-carousel-trust-to-3;
}

.home-carousel__trust-num--24 {
  animation-name: home-carousel-trust-to-24;
}

.home-carousel__trust--inview .home-carousel__trust-num,
.home-carousel__trust--inview .home-carousel__trust-suffix {
  opacity: 1;
}

.home-carousel__trust--inview .home-carousel__trust-num {
  animation-play-state: running;
}

.home-carousel__trust--inview .home-carousel__trust-stats > li:nth-child(1) .home-carousel__trust-num {
  animation-delay: 0.05s;
}

.home-carousel__trust--inview .home-carousel__trust-stats > li:nth-child(2) .home-carousel__trust-num {
  animation-delay: 0.18s;
}

.home-carousel__trust--inview .home-carousel__trust-stats > li:nth-child(3) .home-carousel__trust-num {
  animation-delay: 0.3s;
}

@keyframes home-carousel-trust-to-100 {
  from {
    --trust-num: 0;
  }

  to {
    --trust-num: 100;
  }
}

@keyframes home-carousel-trust-to-3 {
  from {
    --trust-num: 0;
  }

  to {
    --trust-num: 3;
  }
}

@keyframes home-carousel-trust-to-24 {
  from {
    --trust-num: 0;
  }

  to {
    --trust-num: 24;
  }
}

@media (prefers-reduced-motion: reduce) {
  .home-carousel__trust-num,
  .home-carousel__trust-suffix {
    opacity: 1;
  }

  .home-carousel__trust-num {
    animation: none;
  }

  .home-carousel__trust-num--100 {
    --trust-num: 100;
    counter-reset: trust-n var(--trust-num);
  }

  .home-carousel__trust-num--3 {
    --trust-num: 3;
    counter-reset: trust-n var(--trust-num);
  }

  .home-carousel__trust-num--24 {
    --trust-num: 24;
    counter-reset: trust-n var(--trust-num);
  }
}

.home-carousel__trust-label {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.78rem;
  font-weight: 500;
  line-height: 1.35;
  color: rgba(203, 213, 225, 0.95);
}

.home-carousel__controls {
  position: absolute;
  inset: 0;
  z-index: 4;
  pointer-events: none;
}

.home-carousel__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  color: #fff;
  cursor: pointer;
  pointer-events: auto;
  background: rgba(15, 23, 42, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.home-carousel__btn:hover {
  background: rgba(15, 23, 42, 0.55);
  border-color: rgba(255, 255, 255, 0.45);
}

.home-carousel__btn:focus {
  outline: none;
}

.home-carousel__btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(125, 211, 252, 0.65);
}

.home-carousel__btn--prev {
  left: 16px;
}

.home-carousel__btn--next {
  right: 16px;
}

.home-carousel__btn .bi {
  font-size: 1.35rem;
  line-height: 1;
}

.home-carousel__dots {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  z-index: 5;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  justify-content: center;
  transform: translateX(-50%);
  max-width: calc(100% - 48px);
}

.home-carousel__dot {
  width: 10px;
  height: 10px;
  padding: 0;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 999px;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.home-carousel__dot:hover {
  background: rgba(255, 255, 255, 0.65);
}

.home-carousel__dot.is-active {
  background: #fff;
  transform: scale(1.15);
}

.home-carousel__dot:focus {
  outline: none;
}

.home-carousel__dot:focus-visible {
  box-shadow: 0 0 0 3px rgba(125, 211, 252, 0.65);
}

@media (max-width: 768px) {
  .home-carousel {
    --carousel-h: clamp(320px, 62vw, 440px);
  }

  .home-carousel__slide {
    padding: 2rem 0 3.5rem;
  }

  .home-carousel__slide--lead {
    padding-bottom: 1.5rem;
  }

  .home-carousel__trust-stats > li {
    flex: 1 1 100%;
    max-width: 100%;
  }

  .home-carousel__btn--prev {
    left: 10px;
  }

  .home-carousel__btn--next {
    right: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .home-carousel__slide {
    transition-duration: 0.01ms;
  }

  .home-carousel__slide.is-active .home-carousel__bg {
    animation: none;
    transform: scale(1.02);
  }

  .home-carousel__ai-fx {
    display: none !important;
  }
}

/* Hero strip — 旗幟式資訊卡（靈感：CodePen UL banner / clip-path pennant） */
@keyframes hero-banner-enter {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-strip {
  --hero-col-gap: 1.25rem;
  --hero-bar-h: 0.58rem;
  --hero-role-h: 1.55rem;
  --hero-flap-h: 1.05rem;
  background:
    radial-gradient(ellipse 100% 80% at 10% 20%, rgba(56, 189, 248, 0.22), transparent 55%),
    radial-gradient(ellipse 90% 70% at 92% 80%, rgba(45, 212, 191, 0.16), transparent 50%),
    linear-gradient(148deg, #020617 0%, #0c4a6e 32%, #0369a1 58%, #0e7490 100%);
  color: #e0f2fe;
  padding: 2.5rem 0 2.75rem;
}

.hero-inner {
  width: min(1200px, 100% - 32px);
  margin-inline: auto;
  padding-inline: calc(var(--hero-col-gap) / 2);
  box-sizing: border-box;
}

.hero-banner {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--hero-col-gap);
}

.hero-banner__item {
  --hero-accent: var(--color-accent);
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  isolation: isolate;
  color: var(--color-text);
  background: linear-gradient(
    165deg,
    rgba(22, 40, 72, 0.92) 0%,
    rgba(14, 28, 52, 0.88) 45%,
    rgba(10, 22, 42, 0.9) 100%
  );
  border: 1px solid rgba(56, 189, 248, 0.2);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - var(--hero-flap-h)),
    50% 100%,
    0 calc(100% - var(--hero-flap-h))
  );
  filter: drop-shadow(0 14px 36px rgba(0, 0, 0, 0.45));
  transition:
    transform 0.5s cubic-bezier(0.22, 1, 0.36, 1),
    filter 0.45s ease,
    background 0.4s ease,
    border-color 0.4s ease,
    box-shadow 0.45s ease;
}

@media (prefers-reduced-motion: no-preference) {
  .hero-banner__item {
    animation: hero-banner-enter 0.7s cubic-bezier(0.22, 1, 0.36, 1) backwards;
  }

  .hero-banner__item:nth-child(1) {
    animation-delay: 0.06s;
  }

  .hero-banner__item:nth-child(2) {
    animation-delay: 0.14s;
  }

  .hero-banner__item:nth-child(3) {
    animation-delay: 0.22s;
  }

  .hero-banner__item:nth-child(4) {
    animation-delay: 0.3s;
  }

  .hero-banner__item:nth-child(n + 5) {
    animation-delay: 0.38s;
  }
}

.hero-banner__metal {
  width: calc(100% + var(--hero-col-gap));
  margin-left: calc(var(--hero-col-gap) / -2);
  height: var(--hero-bar-h);
  flex-shrink: 0;
  border-radius: 3px 3px 1px 1px;
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--hero-accent) 72%, #fff) 0%,
    color-mix(in srgb, var(--hero-accent) 48%, #0f172a) 42%,
    color-mix(in srgb, var(--hero-accent) 28%, #0f172a) 100%
  );
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.45) inset,
    0 4px 12px rgba(0, 0, 0, 0.18);
  transition: box-shadow 0.45s ease, filter 0.35s ease;
}

.hero-banner__role {
  height: calc(var(--hero-role-h) - var(--hero-bar-h));
  flex-shrink: 0;
  margin-top: -1px;
  background: linear-gradient(180deg, rgba(30, 58, 95, 0.95) 0%, rgba(15, 30, 52, 0.92) 100%);
  border-bottom: 1px solid rgba(56, 189, 248, 0.12);
}

.hero-banner__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 0.75rem 0.4rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  border-bottom: 1px solid rgba(56, 189, 248, 0.08);
}

.hero-banner__icon .bi {
  display: inline-block;
  font-size: clamp(1.85rem, 3.8vw, 2.55rem);
  line-height: 1;
  background: linear-gradient(155deg, #a5f3fc 0%, #22d3ee 42%, #38bdf8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 14px rgba(34, 211, 238, 0.35));
  transition:
    transform 0.5s cubic-bezier(0.34, 1.35, 0.64, 1),
    filter 0.45s ease;
}

.hero-banner__title {
  margin: 0;
  padding: 0.7rem 0.85rem 0.2rem;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-align: center;
  color: #f8fafc;
  transition:
    color 0.35s ease,
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.hero-banner__desc {
  margin: 0;
  padding: 0 0.85rem 1.15rem;
  font-size: 0.8125rem;
  line-height: 1.55;
  text-align: center;
  color: var(--color-muted);
  transition:
    color 0.35s ease,
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .hero-banner__item:hover {
    transform: translateY(-11px) scale(1.02);
    background: linear-gradient(
      165deg,
      rgba(28, 52, 88, 0.95) 0%,
      rgba(18, 36, 64, 0.92) 50%,
      rgba(12, 28, 52, 0.94) 100%
    );
    border-color: rgba(56, 189, 248, 0.55);
    filter:
      drop-shadow(0 28px 56px rgba(0, 0, 0, 0.55))
      drop-shadow(0 0 28px rgba(34, 211, 238, 0.25));
  }

  .hero-banner__item:hover .hero-banner__metal {
    box-shadow:
      0 1px 0 rgba(255, 255, 255, 0.35) inset,
      0 8px 22px rgba(0, 0, 0, 0.35);
    filter: brightness(1.08);
  }

  .hero-banner__item:hover .hero-banner__icon .bi {
    transform: scale(1.12) translateY(-2px);
    filter: drop-shadow(0 0 20px rgba(34, 211, 238, 0.55));
  }

  .hero-banner__item:hover .hero-banner__title {
    color: #fff;
    transform: translateY(-3px);
  }

  .hero-banner__item:hover .hero-banner__desc {
    color: #cbd5e1;
    transform: translateY(-2px);
  }
}

/* Sections */
.section {
  padding: 3.25rem 0;
}

.section-alt {
  background: rgba(0, 0, 0, 0.2);
  border-block: 1px solid rgba(56, 189, 248, 0.08);
}

.section-kicker {
  margin: 0 0 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.section-title {
  margin: 0 0 1.25rem;
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--color-primary);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.section-head .section-title {
  margin-bottom: 0;
}

.link-more {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-accent);
}

.lead {
  margin: 0 0 1.5rem;
  font-size: 1.05rem;
  color: var(--color-text);
}

.lead a,
.about-prose a,
.tf-prose a {
  word-break: break-word;
  overflow-wrap: anywhere;
}

/* 首頁雙欄介紹（對齊 liangyitrade.com 文案與版型） */
.home-split {
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 900px) {
  .home-split {
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 4vw, 3.5rem);
  }
}

.home-split__media {
  margin: 0;
}

.home-split__img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow);
}

.home-intro__title {
  margin: 0 0 1rem;
  font-size: clamp(1.65rem, 3.2vw, 2.15rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
}

.home-intro__title--h2 {
  font-size: clamp(1.45rem, 2.8vw, 1.95rem);
}

.home-consult__lead {
  margin: 0 0 0.65rem;
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--color-text);
}

.home-consult__lead:last-of-type {
  margin-bottom: 0;
}

.home-consult__list {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.home-consult__list li {
  position: relative;
  margin: 0 0 0.7rem;
  padding-left: 1.35rem;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--color-text);
}

.home-consult__list li:last-child {
  margin-bottom: 0;
}

.home-consult__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* 首頁輕量神經網路視覺區塊（低負載版） */
.home-neural-lite {
  overflow: clip;
}

.home-neural-lite__panel {
  position: relative;
  border-radius: 18px;
  border: 1px solid var(--glass-border);
  background:
    radial-gradient(100% 75% at 10% 0%, rgba(14, 165, 233, 0.2), transparent 58%),
    radial-gradient(95% 95% at 100% 100%, rgba(45, 212, 191, 0.12), transparent 70%),
    linear-gradient(145deg, rgba(18, 36, 62, 0.85) 0%, rgba(10, 22, 40, 0.78) 100%);
  box-shadow: var(--shadow), inset 0 1px 0 var(--glass-shine), var(--glow-card-hover);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  isolation: isolate;
}

.home-neural-lite__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  border-radius: inherit;
  z-index: 1;
  opacity: 0.95;
}

.home-neural-lite__content {
  position: relative;
  z-index: 2;
  padding: clamp(1.5rem, 3.2vw, 2.25rem);
  max-width: 46rem;
}

.home-neural-lite__content .section-title {
  margin-bottom: 0.75rem;
}

.home-neural-lite__content .lead {
  margin-bottom: 0;
}

.home-neural-lite__actions {
  margin: 1.25rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.home-neural-lite__btn {
  min-height: 2.35rem;
  padding: 0.48rem 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  line-height: 1.2;
  border-radius: 999px;
}

@media (max-width: 640px) {
  .home-neural-lite__panel {
    border-radius: 14px;
  }

  .home-neural-lite__content {
    padding: 1.2rem 1rem 1.35rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .home-neural-lite__canvas {
    opacity: 0.45;
  }
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.65rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.service-tags li {
  padding: 0.35rem 0.75rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.875rem;
  color: var(--color-muted);
  transition: border-color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

.service-tags li:hover {
  border-color: rgba(34, 211, 238, 0.45);
  background: rgba(56, 189, 248, 0.1);
  box-shadow: var(--glow-card-hover);
  transform: translateY(-1px);
}

.service-tags li a {
  display: inline-block;
  color: inherit;
  text-decoration: none;
}

.service-tags li a:focus-visible {
  outline: 2px solid #38bdf8;
  outline-offset: 2px;
  border-radius: 6px;
}

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

.card {
  background: var(--color-panel);
  padding: 1.5rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow), inset 0 1px 0 var(--glass-shine);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.1rem;
  color: var(--color-primary);
}

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

/* Projects */
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.project-card {
  background: var(--color-panel);
  padding: 1.35rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow), inset 0 1px 0 var(--glass-shine);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.project-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  color: var(--color-primary);
}

.project-card time {
  display: block;
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-bottom: 0.65rem;
}

.project-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-muted);
}

/* Certificates */
.certificate-lead {
  max-width: 42rem;
  margin-bottom: 1.25rem;
}

.cert-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.65rem;
  padding: 0;
  margin: 0 0 0.25rem;
}

.cert-toc__link {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.85rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  background: var(--color-panel);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  box-shadow: var(--shadow), inset 0 1px 0 var(--glass-shine);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.cert-toc__link:hover {
  color: #a5f3fc;
  border-color: rgba(34, 211, 238, 0.45);
  box-shadow: var(--shadow), var(--glow-card-hover);
}

.certificate-block {
  scroll-margin-top: 5.5rem;
}

.certificate-section-head {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.certificate-section-head h2 {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
  color: var(--color-primary);
}

.certificate-section-desc {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-muted);
}

.certificate-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: stretch;
}

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

.certificate-card {
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* 3D flip（參考 CodePen Parallax Flipping Cards）；縮圖仍為固定框 + object-fit: contain */
.certificate-card__trigger {
  display: block;
  width: 100%;
  min-height: 100%;
  margin: 0;
  padding: 0;
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.08);
  overflow: visible;
  transition: box-shadow 0.28s ease, border-color 0.25s ease;
}

.certificate-card__trigger:focus {
  outline: none;
}

.certificate-card__trigger:focus-visible {
  box-shadow: 0 0 0 3px rgba(3, 105, 161, 0.45);
  border-color: var(--color-accent);
}

.certificate-card__3d {
  position: relative;
  width: 100%;
  perspective: 1100px;
  transform-style: preserve-3d;
}

.certificate-card__face {
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  border-radius: 9px;
  transition: transform 0.75s cubic-bezier(0.4, 0.2, 0.2, 1);
  transform-style: preserve-3d;
}

.certificate-card__face--front {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  transform: rotateY(0deg);
  background: #fff;
  overflow: hidden;
}

.certificate-card__face--front::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  border-radius: 9px;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.04) 0%, transparent 35%, transparent 100%);
}

.certificate-card__face--back {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: rotateY(180deg);
  background: linear-gradient(145deg, #0c4a6e 0%, #155e75 48%, #082f49 100%);
  color: #e0f2fe;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.certificate-card__back-inner {
  position: relative;
  z-index: 2;
  max-width: 100%;
  padding: 1.1rem 1.15rem;
  text-align: center;
  transform: translateZ(48px) scale(0.94);
  box-sizing: border-box;
  outline: 1px solid transparent;
}

.certificate-card__back-title {
  display: block;
  margin: 0 0 0.65rem;
  font-size: clamp(0.78rem, 1.35vw, 0.95rem);
  font-weight: 700;
  line-height: 1.45;
  color: #fff;
}

.certificate-card__back-rule {
  display: block;
  width: 3rem;
  height: 2px;
  margin: 0 auto 0.75rem;
  background: rgba(224, 242, 254, 0.45);
  border-radius: 1px;
}

.certificate-card__back-hint {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.5;
  color: rgba(224, 242, 254, 0.82);
}

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .certificate-card__trigger:hover .certificate-card__face--front {
    transform: rotateY(-180deg);
  }

  .certificate-card__trigger:hover .certificate-card__face--back {
    transform: rotateY(0deg);
  }

  .certificate-card__trigger:hover {
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.45), 0 0 28px rgba(34, 211, 238, 0.15);
    border-color: rgba(34, 211, 238, 0.4);
  }
}

/* 已開啟「減少動態效果」時仍保留簡短翻面（無 parallax translateZ），避免證照頁完全無回饋 */
@media (hover: hover) and (prefers-reduced-motion: reduce) {
  .certificate-card__face,
  .certificate-card__media,
  .certificate-card__title {
    transition-duration: 0.35s;
  }

  .certificate-card__trigger:hover .certificate-card__face--front {
    transform: rotateY(-180deg);
  }

  .certificate-card__trigger:hover .certificate-card__face--back {
    transform: rotateY(0deg);
  }

  .certificate-card__trigger:hover {
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.45), 0 0 28px rgba(34, 211, 238, 0.15);
    border-color: rgba(34, 211, 238, 0.4);
  }
}

/* 證照縮圖預設：3:4 預覽框（證照頁 body.page--certificates 改為 1:1，見該區塊） */
.certificate-card__media {
  display: block;
  flex: 0 0 auto;
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  position: relative;
  z-index: 0;
  background: linear-gradient(160deg, #f1f5f9 0%, #e8edf3 45%, #e2e8f0 100%);
}

.certificate-card__media img {
  display: block;
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0.5rem;
  object-fit: contain;
  object-position: center;
}

.certificate-card__title {
  display: block;
  flex: 1 1 auto;
  position: relative;
  z-index: 2;
  padding: 0.75rem 0.85rem 0.9rem;
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.45;
  color: #0f172a;
  min-height: 4.35em;
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}

.cert-viewer {
  width: min(96vw, 920px);
  max-height: 92vh;
  padding: 0;
  border: none;
  border-radius: var(--radius);
  box-shadow: 0 24px 64px rgba(15, 23, 42, 0.35);
}

.cert-viewer::backdrop {
  background: rgba(15, 23, 42, 0.72);
}

.cert-viewer__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1rem 1rem 1.1rem;
  background: rgba(10, 20, 38, 0.97);
  border: 1px solid var(--glass-border);
  color: var(--color-text);
}

.cert-viewer__close {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  margin: 0;
  padding: 0;
  font-size: 1.1rem;
  color: #fff;
  cursor: pointer;
  background: rgba(15, 23, 42, 0.55);
  border: none;
  border-radius: 999px;
}

.cert-viewer__close:hover {
  background: rgba(15, 23, 42, 0.75);
}

.cert-viewer__scroll {
  max-height: min(68vh, 640px);
  overflow: auto;
  margin: 0;
  border-radius: calc(var(--radius) - 2px);
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid var(--glass-border);
}

.cert-viewer__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.cert-viewer__caption {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--color-primary);
}

.cert-viewer__open-tab {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
}

.cert-viewer__open-tab:hover {
  text-decoration: underline;
}

/* CTA */
.cta-section {
  background: linear-gradient(125deg, #0c4a6e 0%, #0369a1 42%, #0e7490 100%);
  color: #e0f2fe;
  border-block: 1px solid rgba(56, 189, 248, 0.25);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.cta-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.cta-section h2 {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
  color: #fff;
}

.cta-section p {
  margin: 0;
  opacity: 0.95;
}

.btn-primary {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  color: #082f49;
  font-weight: 600;
  border-radius: var(--radius);
  text-decoration: none;
  border: 1px solid rgba(56, 189, 248, 0.35);
  box-shadow: 0 4px 20px rgba(34, 211, 238, 0.2);
}

.btn-primary:hover {
  background: #fff;
  text-decoration: none;
  border-color: rgba(34, 211, 238, 0.55);
  box-shadow: 0 6px 28px rgba(34, 211, 238, 0.35);
  color: #0c4a6e;
}

.btn-primary.btn-on-light {
  background: linear-gradient(135deg, #0284c7 0%, #06b6d4 100%);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-primary.btn-on-light:hover {
  background: linear-gradient(135deg, #0ea5e9 0%, #22d3ee 100%);
  color: #fff;
  box-shadow: 0 0 32px rgba(34, 211, 238, 0.4);
}

/* Footer（服務連結欄位風格近似 Design In DC 等 agency 站） */
.site-footer {
  background: linear-gradient(180deg, #020617 0%, #0f172a 100%);
  color: #94a3b8;
  padding: 2.5rem 0 1.75rem;
  font-size: 0.9rem;
  border-top: 1px solid rgba(56, 189, 248, 0.12);
}

.footer-inner {
  width: min(1200px, 100% - 32px);
  margin-inline: auto;
}

.footer-main {
  display: grid;
  grid-template-columns:
    minmax(200px, 1.15fr)
    minmax(168px, 1fr)
    minmax(120px, 0.8fr)
    minmax(240px, min(38%, 420px));
  gap: 2rem 1.35rem;
  align-items: start;
}

.footer-nav__title {
  margin: 0 0 0.85rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #cbd5e1;
}

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

.footer-nav__list li {
  margin: 0 0 0.4rem;
}

.footer-nav__list a {
  display: inline-block;
  color: #94a3b8;
  font-size: 0.875rem;
  line-height: 1.45;
  text-decoration: none;
  transition: color 0.25s ease, transform 0.25s ease;
}

.footer-nav__list a:hover {
  color: #e2e8f0;
  text-decoration: none;
}

@media (hover: hover) {
  .footer-nav__list a:hover {
    transform: translateX(5px);
    color: #7dd3fc;
  }
}

.footer-map-wrap {
  width: 100%;
  min-width: 0;
}

.footer-map {
  display: block;
  width: 100%;
  height: clamp(200px, 28vw, 260px);
  border: 0;
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  background: #1e293b;
}

.footer-map-link {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: #7dd3fc;
  text-decoration: none;
}

.footer-map-link:hover {
  text-decoration: underline;
  color: #bae6fd;
}

@media (max-width: 1100px) {
  .footer-main {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.75rem 1.25rem;
  }

  .footer-map-wrap {
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  .footer-main {
    grid-template-columns: 1fr;
  }

  .footer-map-wrap {
    grid-column: auto;
  }
}

@media (max-width: 768px) {
  .footer-map {
    height: 220px;
  }
}

.footer-block strong {
  display: block;
  color: #e2e8f0;
  margin-bottom: 0.5rem;
}

.footer-block a {
  color: #7dd3fc;
}

.footer-iso {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.65rem;
  margin-top: 1rem;
}

.footer-iso-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.7rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #e2e8f0;
  border: 1px solid rgba(148, 163, 184, 0.45);
  border-radius: 4px;
  background: rgba(15, 23, 42, 0.45);
}

.footer-copy {
  margin: 1.5rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(148, 163, 184, 0.35);
  font-size: 0.8rem;
}

.main-nav a[aria-current="page"] {
  color: var(--color-primary);
  background: rgba(56, 189, 248, 0.14);
  text-decoration: none;
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.1);
}

/* Inner page title */
.page-header {
  background: linear-gradient(135deg, rgba(12, 24, 44, 0.92) 0%, rgba(6, 14, 28, 0.88) 100%);
  border-bottom: 1px solid var(--glass-border);
  padding: 2rem 0;
  box-shadow: inset 0 1px 0 var(--glass-shine);
}

.page-header-inner {
  width: min(1200px, 100% - 32px);
  margin-inline: auto;
}

.page-header h1 {
  margin: 0;
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  font-weight: 700;
  color: var(--color-primary);
}

.page-header .page-desc {
  margin: 0.5rem 0 0;
  color: var(--color-muted);
  font-size: 0.95rem;
}

/* Home quick links */
.home-links {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 200px), 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.home-link-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 1.25rem 1.5rem;
  background: var(--color-panel);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow), inset 0 1px 0 var(--glass-shine);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  color: var(--color-primary);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, color 0.2s ease;
}

.home-link-card:hover {
  border-color: rgba(34, 211, 238, 0.5);
  color: #a5f3fc;
  text-decoration: none;
  box-shadow: var(--shadow), var(--glow-cyan);
}

.home-link-card .home-link-card__icon {
  font-size: 1.65rem;
  color: var(--color-accent);
  opacity: 0.9;
  line-height: 1;
}

.subsection-title {
  font-size: 1.25rem;
  margin: 0 0 1rem;
  color: var(--color-primary);
}

.about-prose p {
  margin: 0;
  color: var(--color-text);
}

.about-prose p + p {
  margin-top: 1.15em;
}

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 0.5rem;
}

.pillar-grid--flow {
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

.pillar-card {
  background: var(--color-panel);
  padding: 1.35rem 1.5rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow), inset 0 1px 0 var(--glass-shine);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.pillar-card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.15rem;
  color: var(--color-primary);
}

.pillar-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.numbered-list {
  margin: 1rem 0 0;
  padding-left: 1.35rem;
  color: var(--color-text);
}

.numbered-list li {
  margin-bottom: 0.65rem;
  padding-left: 0.35rem;
}

.numbered-list li::marker {
  color: var(--color-primary);
  font-weight: 600;
}

.numbered-list--lead {
  margin-top: 1.5rem;
}

.subsection-spaced {
  margin-top: 2rem;
}

.policy-block .numbered-list {
  margin-top: 1.25rem;
}

.about-intro-lead {
  margin-bottom: 1rem;
}

.values-lead {
  margin-bottom: 1.25rem;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
  gap: 1.5rem;
}

.service-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--color-panel);
  padding: 1.5rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow), inset 0 1px 0 var(--glass-shine);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.service-card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.15rem;
  color: var(--color-primary);
}

.service-card p {
  margin: 0;
  flex: 1;
  font-size: 0.95rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.service-more {
  display: inline-block;
  margin-top: 0.95rem;
  padding: 0.35rem 0.65rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  border-radius: var(--radius);
  transition: color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

.service-more:hover {
  text-decoration: none;
}

.services-list-heading {
  margin-bottom: 1.5rem;
}

/* 服務總覽頁與首頁精選區：Zelh 式大圓角、柔和陰影、右下角圖示塊（service-grid--zelh） */
:is(body.page--services, body.page--home) .service-grid--zelh {
  --svc-radius: 22px;
  --svc-pad: clamp(1.5rem, 4vw, 2.35rem);
  gap: clamp(1.25rem, 3vw, 1.85rem);
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
}

:is(body.page--services, body.page--home) .service-grid--zelh .service-card {
  position: relative;
  padding: var(--svc-pad);
  border: 1px solid var(--glass-border);
  border-radius: var(--svc-radius);
  background:
    radial-gradient(ellipse 90% 75% at 0% 0%, color-mix(in srgb, var(--svc-accent, var(--color-accent)) 22%, transparent), transparent 58%),
    radial-gradient(ellipse 75% 60% at 100% 100%, color-mix(in srgb, var(--svc-accent, var(--color-accent)) 14%, transparent), transparent 52%),
    linear-gradient(180deg, rgba(22, 40, 72, 0.82) 0%, rgba(12, 24, 44, 0.75) 100%);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 var(--glass-shine),
    0 0 0 1px rgba(56, 189, 248, 0.06);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow: hidden;
}

:is(body.page--services, body.page--home) .service-grid--zelh .service-card--featured {
  display: flex;
  flex-direction: column;
  padding: 0;
}

:is(body.page--services, body.page--home) .service-grid--zelh .service-card:not(.service-card--featured) .service-card__text {
  flex: 1;
  min-height: 0;
}

:is(body.page--services, body.page--home) .service-grid--zelh .service-card__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1.05rem var(--svc-pad);
  background: var(--svc-accent, var(--color-primary));
  color: #fff;
  border-radius: var(--svc-radius) var(--svc-radius) 0 0;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.2) inset;
}

:is(body.page--services, body.page--home) .service-grid--zelh .service-card__bar h3 {
  margin: 0;
  font-size: clamp(1rem, 2.2vw, 1.08rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #fff;
  line-height: 1.35;
}

:is(body.page--services, body.page--home) .service-grid--zelh .service-card__bar-chevron {
  flex-shrink: 0;
  display: flex;
  opacity: 0.9;
  font-size: 1.15rem;
}

:is(body.page--services, body.page--home) .service-grid--zelh .service-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  padding: var(--svc-pad);
  padding-top: 1.35rem;
}

:is(body.page--services, body.page--home) .service-grid--zelh .service-card__text {
  flex: 1;
  min-height: 0;
}

:is(body.page--services, body.page--home) .service-grid--zelh .service-card__text h3 {
  margin: 0 0 0.7rem;
  font-size: clamp(1.05rem, 2.2vw, 1.14rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #f1f5f9;
}

:is(body.page--services, body.page--home) .service-grid--zelh .service-card__bottom {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.35rem;
}

:is(body.page--services, body.page--home) .service-grid--zelh .service-card--featured .service-card__body .service-card__bottom {
  margin-top: auto;
  padding-top: 1.25rem;
}

:is(body.page--services, body.page--home) .service-grid--zelh .service-card p:not(.service-card__cases) {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.62;
  color: var(--color-muted);
}

:is(body.page--services, body.page--home) .service-grid--zelh .service-more {
  margin-top: 0;
  align-self: flex-start;
  padding: 0.42rem 1.05rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #e0f2fe;
  border: 1.5px solid rgba(56, 189, 248, 0.35);
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.1);
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

:is(body.page--services, body.page--home) .service-grid--zelh .service-more:hover {
  color: #fff;
  background: rgba(34, 211, 238, 0.25);
  border-color: rgba(34, 211, 238, 0.55);
  text-decoration: none;
  transform: none;
  box-shadow: 0 0 24px rgba(34, 211, 238, 0.25);
}

:is(body.page--services, body.page--home) .service-grid--zelh .service-card__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3.35rem;
  height: 3.35rem;
  border-radius: 14px;
  font-size: 1.4rem;
  color: #fff;
  border: 3px solid color-mix(in srgb, var(--svc-accent, var(--color-primary)) 55%, #fff);
  background: linear-gradient(
    148deg,
    color-mix(in srgb, var(--svc-accent, var(--color-primary)) 88%, #020617) 0%,
    var(--svc-accent, var(--color-primary)) 100%
  );
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.12) inset,
    0 10px 28px color-mix(in srgb, var(--svc-accent, var(--color-primary)) 32%, transparent);
}

@media (hover: hover) {
  :is(body.page--services, body.page--home) .service-grid--zelh .service-card:hover {
    transform: translateY(-4px);
    box-shadow:
      0 20px 48px rgba(0, 0, 0, 0.45),
      0 0 36px rgba(34, 211, 238, 0.12),
      inset 0 1px 0 var(--glass-shine);
    border-color: rgba(34, 211, 238, 0.35);
  }
}

@media (prefers-reduced-motion: reduce) {
  :is(body.page--services, body.page--home) .service-grid--zelh .service-card:hover {
    transform: none;
  }
}

body.page--home .home-services__lead {
  max-width: 52rem;
  margin-bottom: 1.75rem;
}

body.page--home .home-services__more-wrap {
  margin-top: 2.25rem;
  text-align: center;
}

@media (min-width: 720px) {
  body.page--home .home-services__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  body.page--home .home-services__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.breadcrumb {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin: 0 0 0.5rem;
}

.breadcrumb a {
  color: var(--color-accent);
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.doc-h3 {
  font-size: 1.05rem;
  margin: 1.35rem 0 0.45rem;
  color: var(--color-primary);
}

.doc-h3:first-child {
  margin-top: 0;
}

.feature-bullets {
  margin: 0.35rem 0 0;
  padding-left: 1.25rem;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.feature-bullets li {
  margin-bottom: 0.4rem;
}

.feature-bullets--spaced {
  margin-top: 0.75rem;
}

.tf-prose {
  max-width: 42rem;
}

.tf-prose > p {
  margin: 0 0 1rem;
  color: var(--color-text);
  line-height: 1.7;
}

.tf-prose .lead {
  margin-bottom: 1rem;
}

/* 商用 ERP 專頁（commercial-erp.html） */
#erp-flow,
#erp-modules,
#erp-deliver,
#erp-integration {
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.erp-hero__grid {
  display: grid;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 900px) {
  .erp-hero__grid {
    grid-template-columns: 1fr min(340px, 36%);
    gap: 2.5rem;
  }
}

.erp-hero__title {
  margin: 0 0 1rem;
  font-size: clamp(1.35rem, 2.5vw, 1.8rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-primary);
}

.erp-hero__lead {
  margin-bottom: 1.25rem;
}

.erp-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.erp-toc__link {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.95rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  background: var(--color-panel);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.erp-toc__link:hover {
  border-color: rgba(34, 211, 238, 0.45);
  color: #a5f3fc;
  background: rgba(56, 189, 248, 0.12);
  text-decoration: none;
  box-shadow: var(--glow-card-hover);
}

.erp-hero__aside {
  margin: 0;
  padding: 1.35rem 1.5rem;
  background: linear-gradient(155deg, rgba(14, 165, 233, 0.1), rgba(34, 211, 238, 0.06));
  border: 1px solid rgba(56, 189, 248, 0.22);
  border-radius: 12px;
  box-shadow: inset 0 1px 0 var(--glass-shine);
}

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

.erp-pill-list li {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  margin-bottom: 0.85rem;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--color-text);
}

.erp-pill-list li:last-child {
  margin-bottom: 0;
}

.erp-pill-list .bi {
  flex-shrink: 0;
  margin-top: 0.15em;
  font-size: 1.05rem;
  color: var(--color-accent);
}

.erp-section-head {
  margin-bottom: 1.75rem;
  max-width: 48rem;
}

.erp-section-head--narrow {
  max-width: 42rem;
  margin-inline: auto;
}

.erp-section-head .section-title {
  margin-bottom: 0.65rem;
}

.erp-section-head__desc {
  margin: 0;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-muted);
}

.erp-flow {
  display: grid;
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

@media (min-width: 720px) {
  .erp-flow {
    grid-template-columns: repeat(2, 1fr);
  }
}

.erp-flow__step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 1.15rem;
  align-items: start;
  margin: 0;
  padding: 1.2rem 1.35rem;
  background: var(--color-panel);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  box-shadow: var(--shadow), inset 0 1px 0 var(--glass-shine);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.erp-flow__num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(145deg, var(--color-accent), var(--color-primary-dark));
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(8, 47, 73, 0.2);
}

.erp-flow__body {
  min-width: 0;
}

.erp-flow__name {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary);
}

.erp-flow__body p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--color-muted);
}

.erp-module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.erp-module-card {
  margin: 0;
  padding: 1.35rem 1.5rem;
  background: var(--color-panel);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow), inset 0 1px 0 var(--glass-shine);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

@media (hover: hover) {
  .erp-module-card:hover {
    border-color: rgba(34, 211, 238, 0.35);
    box-shadow: var(--shadow), var(--glow-card-hover), inset 0 1px 0 var(--glass-shine);
  }
}

.erp-module-card__title {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--color-primary);
}

.erp-module-card__text {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.6;
  color: var(--color-muted);
}

.erp-two-col {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 800px) {
  .erp-two-col {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
}

.erp-panel {
  margin: 0;
  padding: 1.5rem;
  background: var(--color-panel);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  box-shadow: var(--shadow), inset 0 1px 0 var(--glass-shine);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.erp-panel__title {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  color: var(--color-primary);
}

.erp-checklist {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--color-text);
  font-size: 0.95rem;
  line-height: 1.65;
}

.erp-checklist li {
  margin-bottom: 0.55rem;
}

.erp-checklist li:last-child {
  margin-bottom: 0;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.cta-section .btn-ghost-light {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.92);
  color: #fff;
}

.cta-section .btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.12);
  text-decoration: none;
}

.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 36rem;
}

.contact-list li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

.contact-list strong {
  display: inline-block;
  min-width: 4.5rem;
  color: var(--color-primary);
}

.contact-cta {
  margin-top: 2rem;
}

.content-placeholder {
  margin: 1rem 0 0;
  padding: 0.85rem 1rem;
  border-left: 4px solid var(--color-accent);
  background: rgba(14, 165, 233, 0.1);
  color: var(--color-muted);
  font-size: 0.92rem;
}

/* --- Visual polish: backgrounds, icons, motion (Bootstrap Icons + Unsplash in CSS) --- */
.site-header {
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}

.main-nav > ul > li > a,
.main-nav .submenu a,
.mega-menu__list a,
.mega-menu__all {
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-toggle {
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-header {
  position: relative;
  overflow: hidden;
}

.page-header-inner {
  position: relative;
  z-index: 1;
}

.page-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-size: cover;
  background-position: center right;
  opacity: 0;
  transform: scale(1.03);
  transition: opacity 0.6s ease, transform 1s ease;
}

/* Default banner photo when page has no dedicated body.page--* override */
body:not(.page--home) .page-header::before {
  opacity: 0.22;
  mask-image: linear-gradient(105deg, #000 0%, #000 42%, transparent 88%);
  -webkit-mask-image: linear-gradient(105deg, #000 0%, #000 42%, transparent 88%);
  background-image: url("https://images.unsplash.com/photo-1450101499163-c8848c66ca85?auto=format&fit=crop&w=1600&q=80");
}

body:not(.page--home) .page-header {
  padding: clamp(2.25rem, 5.5vw, 3.35rem) 0;
}

body.page--about .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1522071820081-009f0129c71c?auto=format&fit=crop&w=1600&q=80");
}

body.page--services .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1460925895917-afdab827c52f?auto=format&fit=crop&w=1600&q=80");
}

body.page--contact .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1423666639041-f56000c27a9a?auto=format&fit=crop&w=1600&q=80");
}

body.page--certificates .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1450101499163-c8848c66ca85?auto=format&fit=crop&w=1600&q=80");
}

body.page--cases .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1552664730-d307ca884978?auto=format&fit=crop&w=1600&q=80");
}

/* 客戶案例頁 */
.case-study-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.5rem;
  margin: 0 0 0.65rem;
}

.case-study-meta__tag {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-muted);
  background: rgba(56, 189, 248, 0.08);
  border-radius: 6px;
  border: 1px solid rgba(56, 189, 248, 0.15);
  text-decoration: none;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

a.case-study-meta__tag:hover {
  color: #a5f3fc;
  background: rgba(56, 189, 248, 0.14);
  border-color: rgba(34, 211, 238, 0.3);
}

/* 服務／案例交叉：標籤列（全站共用） */
.tag-pill {
  display: inline-block;
  padding: 0.28rem 0.65rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #7dd3fc;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.22);
  border-radius: 999px;
  text-decoration: none;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.tag-pill:hover {
  background: rgba(56, 189, 248, 0.16);
  border-color: rgba(34, 211, 238, 0.4);
  color: #a5f3fc;
  box-shadow: 0 0 16px rgba(34, 211, 238, 0.12);
}

.tag-pill--case {
  background: rgba(13, 148, 136, 0.1);
  border-color: rgba(13, 148, 136, 0.22);
  color: #0f766e;
}

.tag-pill--case:hover {
  background: rgba(13, 148, 136, 0.16);
  border-color: rgba(13, 148, 136, 0.35);
  color: #115e59;
}

.tag-pill--current {
  box-shadow: inset 0 0 0 1px rgba(34, 211, 238, 0.35);
  pointer-events: none;
  cursor: default;
}

.tag-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.55rem;
  align-items: center;
}

.tag-pill-row--wrap {
  margin-top: 0.65rem;
}

.cross-ref-section__title {
  font-size: clamp(1.05rem, 2.2vw, 1.2rem);
  margin-bottom: 0.35rem;
}

.cross-ref-section__desc {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-muted);
  line-height: 1.55;
}

.tag-cross-lead {
  margin-bottom: 1rem !important;
}

.tag-cross-matrix {
  display: flex;
  flex-direction: column;
  gap: 0.85rem 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tag-cross-matrix__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
  padding: 0.75rem 0.9rem;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(8, 47, 73, 0.08);
  border-radius: 10px;
}

.tag-cross-matrix__name {
  flex: 0 0 auto;
  min-width: 8.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: #082f49;
}

@media (max-width: 520px) {
  .tag-cross-matrix__row {
    flex-direction: column;
    align-items: flex-start;
  }

  .tag-cross-matrix__name {
    min-width: 0;
  }
}

.tag-cross-footer {
  margin: 1rem 0 0;
}

.case-study-toc {
  margin-top: 1.25rem;
  padding: 1rem 1.15rem;
  background: rgba(8, 47, 73, 0.04);
  border-radius: 10px;
  border: 1px solid rgba(8, 47, 73, 0.08);
}

.case-study-toc ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.case-study-toc--tags {
  margin-top: 1rem;
}

.case-study-toc__label {
  margin: 0 0 0.45rem;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted, #64748b);
}

.case-study-toc li + li {
  margin-top: 0.45rem;
}

.case-study-toc a {
  font-weight: 500;
  text-decoration: none;
}

.case-study-toc a:hover {
  text-decoration: underline;
}

.case-study-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  align-items: center;
}

.case-study-filter-banner {
  margin: 0 0 1.25rem;
  padding: 1rem 1.15rem 1.1rem;
  background: linear-gradient(135deg, rgba(13, 148, 136, 0.12) 0%, rgba(8, 47, 73, 0.08) 100%);
  border: 1px solid rgba(8, 47, 73, 0.12);
  border-radius: 12px;
}

.case-study-filter-banner__msg {
  margin: 0 0 0.5rem;
  font-size: 0.9375rem;
  line-height: 1.55;
  color: #0f172a;
}

.case-study-filter-banner__actions {
  margin: 0;
  font-size: 0.875rem;
}

.case-study-filter-banner__clear {
  font-weight: 600;
  text-decoration: none;
}

.case-study-filter-banner__clear:hover {
  text-decoration: underline;
}

/* 服務總覽／首頁方案卡：案例標籤列（與內文間距須高於 .service-card p 的 margin 重置） */
.service-card__cases {
  margin: 0.75rem 0 0;
}

.service-card__cases .tag-pill--case {
  font-size: 0.78rem;
  padding: 0.22rem 0.6rem;
}

:is(body.page--services, body.page--home) .service-grid--zelh .service-card .service-card__cases {
  margin-top: 0.75rem;
  margin-bottom: 0;
  padding-inline: 0;
}

/* 證照頁：4 欄網格、1:1 預覽、Parallax 翻卡（CodePen Parallax Flipping Cards — wqGgLO） */
body.page--certificates .certificate-grid,
body.page--certificates .certificate-grid--dense {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem 1.05rem;
}

body.page--certificates .certificate-card__trigger {
  border-radius: 12px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.12);
}

body.page--certificates .certificate-card__face {
  border-radius: 11px;
  transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
}

body.page--certificates .certificate-card__face--front::after {
  display: none;
}

body.page--certificates .certificate-card__media {
  aspect-ratio: 1 / 1;
  border-radius: 9px 9px 0 0;
  transform: translateZ(40px) scale(0.96);
  transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
}

body.page--certificates .certificate-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  border-radius: 9px 9px 0 0;
  background: rgba(0, 0, 0, 0.5);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

body.page--certificates .certificate-card__media img {
  position: relative;
  z-index: 0;
}

body.page--certificates .certificate-card__title {
  transform: translateZ(58px) scale(0.94);
  transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
  min-height: 3.2em;
  padding-top: 0.5rem;
  padding-bottom: 0.6rem;
}

body.page--certificates .certificate-card__back-inner {
  transform: translateZ(60px) scale(0.94);
}

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  body.page--certificates .certificate-card__trigger:hover .certificate-card__media {
    transform: translateZ(52px) scale(0.96);
  }

  body.page--certificates .certificate-card__trigger:hover .certificate-card__title {
    transform: translateZ(72px) scale(0.94);
  }
}

body.page--t-flow .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1555949963-aa79dcee981c?auto=format&fit=crop&w=1600&q=80");
}

body.page--inventory .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1473341304170-971dccb5ac1e?auto=format&fit=crop&w=1600&q=80");
}

body.page--website .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1547658719-da2b51169166?auto=format&fit=crop&w=1600&q=80");
}

body.page--system .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1518186285589-2f7649de83e0?auto=format&fit=crop&w=1600&q=80");
}

body.page--sharepoint .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1551434678-e076c223a692?auto=format&fit=crop&w=1600&q=80");
}

body.page--azure .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1544197150-b99a580bb7a8?auto=format&fit=crop&w=1600&q=80");
}

body.page--digital .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1551288049-bebda4e38f71?auto=format&fit=crop&w=1600&q=80");
}

body.page--graphic .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1626785774573-4b799315345d?auto=format&fit=crop&w=1600&q=80");
}

body.page--phishing .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1563986768609-322da13575f3?auto=format&fit=crop&w=1600&q=80");
}

body.page--rpa .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1485827404703-89b55fcc595e?auto=format&fit=crop&w=1600&q=80");
}

body.page--powerbi .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1543286386-713bdd548da4?auto=format&fit=crop&w=1600&q=80");
}

body.page--msproject .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1454165804606-c3d57bc86b40?auto=format&fit=crop&w=1600&q=80");
}

body.page--commercial-erp .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1554224155-6726b3ff858f?auto=format&fit=crop&w=1600&q=80");
}

body.page--agentic-rag .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1620712943543-bcc4688e7485?auto=format&fit=crop&w=1600&q=80");
}

body.page--sharefile .page-header::before {
  background-image: url("https://images.unsplash.com/photo-1522071820081-009f0129c71c?auto=format&fit=crop&w=1600&q=80");
}

body.page--home .hero-strip {
  position: relative;
  overflow: hidden;
}

body.page--home .hero-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: url("https://images.unsplash.com/photo-1451187580459-43490279c0fa?auto=format&fit=crop&w=1920&q=80") center / cover no-repeat;
  opacity: 0.16;
  pointer-events: none;
}

body.page--home .hero-inner {
  position: relative;
  z-index: 1;
}

.page-title-icon {
  flex-shrink: 0;
  font-size: 1.5rem;
  color: var(--color-accent);
  line-height: 1;
  margin-right: 0.35rem;
  vertical-align: -0.08em;
}

.page-header h1,
main h1.section-title {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
}

.card,
.service-card,
.pillar-card,
.project-card,
.home-link-card {
  transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.25s ease;
}

@media (hover: hover) {
  .card:hover,
  .service-card:hover,
  .pillar-card:hover,
  .project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow), var(--glow-card-hover), inset 0 1px 0 var(--glass-shine);
    border-color: rgba(34, 211, 238, 0.38);
  }

  .home-link-card:hover {
    transform: translateY(-3px);
  }

  .service-more:hover {
    color: #fff;
    background: rgba(34, 211, 238, 0.35);
    transform: translateX(2px);
    box-shadow: 0 0 24px rgba(34, 211, 238, 0.2);
  }
}

.btn-primary {
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

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

  .brand:hover .brand-logo {
    opacity: 0.88;
  }
}

.footer-media {
  margin: 1rem 0 0;
  font-size: 0.75rem;
  color: #94a3b8;
  line-height: 1.5;
}

.footer-media a {
  color: #7dd3fc;
}

@media (prefers-reduced-motion: reduce) {
  .main-nav > ul > li > a,
  .main-nav .submenu a,
  .mega-menu__list a,
  .footer-nav__list a {
    transition: none;
  }

  @media (hover: hover) {
    .main-nav > ul > li > a:hover,
    .main-nav .submenu a:hover,
    .footer-nav__list a:hover {
      transform: none;
      padding-left: 1rem;
    }

    .mega-menu__list a:hover {
      transform: none;
      padding-left: 0.26rem;
    }
  }

  .card,
  .service-card,
  .pillar-card,
  .project-card,
  .home-link-card,
  .btn-primary,
  .service-more {
    transition: none;
  }

  .hero-banner__item {
    transition: filter 0.32s ease, background 0.32s ease;
  }

  .hero-banner__metal {
    transition: box-shadow 0.32s ease, filter 0.32s ease;
  }

  @media (hover: hover) {
    .card:hover,
    .service-card:hover,
    .pillar-card:hover,
    .project-card:hover,
    .home-link-card:hover,
    .btn-primary:hover {
      transform: none;
      filter: drop-shadow(0 14px 32px rgba(0, 0, 0, 0.5));
    }

    .hero-banner__item:hover {
      transform: none;
      filter:
        drop-shadow(0 22px 48px rgba(0, 0, 0, 0.55))
        drop-shadow(0 0 20px rgba(34, 211, 238, 0.18))
        brightness(1.03);
    }

    .hero-banner__item:hover .hero-banner__metal {
      filter: brightness(1.06);
    }
  }

  .certificate-card__face {
    transition: none;
  }

  body.page--certificates .certificate-card__media,
  body.page--certificates .certificate-card__title {
    transform: none;
    transition: none;
  }

  .page-header::before {
    transition: none;
    transform: none;
  }
}

/* 平板與以下：證照密排由 4 欄改 3 欄，再於 960px 改 2 欄 */
@media (max-width: 1200px) {
  .certificate-grid--dense {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Mobile */
@media (max-width: 960px) {
  .hero-banner {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3,
  .project-grid,
  .pillar-grid,
  .pillar-grid--flow {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 520px) {
  .certificate-grid,
  .certificate-grid--dense {
    grid-template-columns: 1fr;
  }
}

/* 證照頁覆寫：維持 4→3→2→1 欄（優先於上方通用證照 grid 斷點） */
@media (max-width: 1100px) {
  body.page--certificates .certificate-grid,
  body.page--certificates .certificate-grid--dense {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  body.page--certificates .certificate-grid,
  body.page--certificates .certificate-grid--dense {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  body.page--certificates .certificate-grid,
  body.page--certificates .certificate-grid--dense {
    grid-template-columns: 1fr;
  }
}

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

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(8, 16, 32, 0.97);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    -webkit-overflow-scrolling: touch;
  }

  .main-nav.is-open {
    max-height: min(70vh, 36rem);
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .main-nav > ul {
    flex-direction: column;
    padding: 0.5rem 1rem 1rem;
  }

  .main-nav .submenu {
    position: static;
    display: block;
    border: none;
    box-shadow: none;
    padding-left: 1rem;
  }

  .main-nav .has-sub:hover .submenu {
    display: block;
  }

  .has-mega > a::after {
    display: none;
  }

  .mega-menu {
    position: static;
    left: auto;
    transform: none;
    width: 100%;
    display: block;
    z-index: auto;
    padding-top: 0.2rem;
  }

  .mega-menu__inner {
    border: none;
    border-radius: 0;
    box-shadow: none;
    padding: 0 0 0.25rem 1rem;
    background: transparent;
  }

  .mega-menu__all {
    border-bottom: none;
    padding-bottom: 0.3rem;
    margin-bottom: 0.45rem;
    font-size: 0.88rem;
  }

  .mega-menu__grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .mega-menu__cat {
    font-size: 0.7rem;
    margin-bottom: 0.3rem;
  }

  .hero-banner {
    grid-template-columns: 1fr;
  }

  .service-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.65rem;
  }

  .section-head .link-more {
    align-self: flex-start;
  }

  .page-header {
    padding: 1.5rem 0;
  }

  .section {
    padding: 2.5rem 0;
  }

  .section-title {
    font-size: clamp(1.35rem, 5vw, 1.55rem);
  }

  .cta-inner {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-actions {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  .cta-actions .btn-primary {
    display: block;
    width: 100%;
    max-width: 100%;
    text-align: center;
    box-sizing: border-box;
  }

  .container,
  .container.narrow {
    width: min(1120px, 100% - 28px);
  }

  .header-inner,
  .page-header-inner,
  .footer-inner {
    width: min(1200px, 100% - 28px);
  }

  .home-carousel__inner {
    width: min(1200px, 100% - 28px);
    padding-inline: 2px;
  }

  .hero-inner {
    width: min(1200px, 100% - 28px);
  }
}

@media (max-width: 480px) {
  .container,
  .container.narrow,
  .header-inner,
  .page-header-inner,
  .footer-inner,
  .home-carousel__inner,
  .hero-inner {
    width: min(1200px, 100% - 20px);
  }

  .brand-logo {
    height: clamp(32px, 10vw, 40px);
    width: clamp(32px, 10vw, 40px);
  }

  .brand-name {
    max-width: min(200px, 62vw);
  }

  .brand-en {
    max-width: min(220px, 72vw);
  }

  .home-carousel__btn {
    width: 2.45rem;
    height: 2.45rem;
  }

  .home-carousel__btn--prev {
    left: 8px;
  }

  .home-carousel__btn--next {
    right: 8px;
  }

  .subsection-title {
    font-size: 1.12rem;
  }

  .service-card,
  .pillar-card,
  .project-card {
    padding: 1.15rem;
  }

  body.page--services .service-grid--zelh .service-card:not(.service-card--featured),
  body.page--home .service-grid--zelh .service-card:not(.service-card--featured) {
    padding: 1.35rem 1.2rem 1.2rem;
  }

  body.page--services .service-grid--zelh .service-card--featured .service-card__body,
  body.page--home .service-grid--zelh .service-card--featured .service-card__body {
    padding: 1.35rem 1.2rem 1.2rem;
  }

  body.page--services .service-grid--zelh .service-card__bar,
  body.page--home .service-grid--zelh .service-card__bar {
    padding: 1rem 1.2rem;
  }
}