/* 科技質感元件 — 主站專用 */

body.site--corp {
  background: var(--color-bg);
}

/* 細格網背景 */
.grid-bg {
  position: relative;
  overflow: hidden;
}

.grid-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(61, 139, 253, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 139, 253, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 0%, black, transparent);
  pointer-events: none;
}

.grid-bg > .container {
  position: relative;
  z-index: 1;
}

/* Hero 升級 */
.hero--tech {
  background: var(--color-bg-dark);
  position: relative;
  overflow: hidden;
}

.hero--tech::after {
  content: "";
  position: absolute;
  top: -40%;
  right: -15%;
  width: 60%;
  height: 120%;
  background: radial-gradient(ellipse, var(--color-accent-glow) 0%, transparent 65%);
  pointer-events: none;
}

.hero--tech .hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--color-accent-muted);
  text-transform: uppercase;
}

.hero--tech .hero__title {
  font-weight: 600;
  letter-spacing: -0.02em;
}

.hero--tech .hero__lead {
  color: rgba(255, 255, 255, 0.65);
  font-size: 1.0625rem;
}

.hero__facts--tech {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 1px solid rgba(61, 139, 253, 0.35);
  padding: var(--space-lg);
}

.hero__facts--tech .facts-list__label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* 深色 Hero／區塊內連結（覆蓋 base 深色連結色，避免與背景融為一體） */
.hero a:not(.btn),
.section--dark a:not(.btn) {
  color: #9ec5ff;
  text-decoration: underline;
  text-decoration-color: rgba(158, 197, 255, 0.45);
  text-underline-offset: 3px;
  transition: color var(--transition), text-decoration-color var(--transition);
}

.hero a:not(.btn):hover,
.section--dark a:not(.btn):hover {
  color: #ffffff;
  text-decoration-color: rgba(255, 255, 255, 0.55);
}

.hero .facts-list__value a {
  font-weight: 500;
}

/* 技術標籤 */
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: var(--space-md);
}

.tech-tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: var(--color-white);
  letter-spacing: 0.02em;
}

.hero--tech .tech-tag {
  border-color: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.04);
}

/* 深色區塊 */
.section--dark {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.85);
  border-top: none;
  border-bottom: none;
}

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

.section--dark .section-intro p,
.section--dark p {
  color: rgba(255, 255, 255, 0.6);
}

.section--dark .section-intro {
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

/* 能力矩陣 */
.cap-matrix {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.cap-matrix__cell {
  background: var(--color-bg-elevated);
  padding: var(--space-lg);
}

.cap-matrix__icon {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-accent-muted);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.04em;
}

.cap-matrix__title {
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 600;
  color: white;
  margin-bottom: 0.5rem;
}

.cap-matrix__desc {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.7;
}

/* 程式碼展示 */
.code-showcase {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--space-xl);
  align-items: center;
}

.code-window {
  background: #0d1117;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.65;
}

.code-window__bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.code-window__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}

.code-window__dot:first-child { background: #ff5f57; }
.code-window__dot:nth-child(2) { background: #febc2e; }
.code-window__dot:nth-child(3) { background: #28c840; }

.code-window__title {
  margin-left: 0.5rem;
  font-size: 0.6875rem;
  color: rgba(255, 255, 255, 0.35);
}

.code-window__body {
  padding: 1.25rem;
  color: rgba(255, 255, 255, 0.75);
  overflow-x: auto;
}

.code-window .kw { color: #ff7b72; }
.code-window .fn { color: #d2a8ff; }
.code-window .str { color: #a5d6ff; }
.code-window .cm { color: rgba(255, 255, 255, 0.3); }
.code-window .num { color: #79c0ff; }

/* 產品卡片（POS / 軟體） */
.product-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  overflow: hidden;
}

.product-card__content {
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.product-card__label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.product-card__title {
  font-family: var(--font-serif);
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-sm);
}

.product-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  line-height: 1.75;
}

.product-card__visual {
  background: var(--color-bg-dark);
  padding: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  position: relative;
}

.product-card__visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(61, 139, 253, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61, 139, 253, 0.06) 1px, transparent 1px);
  background-size: 24px 24px;
}

.product-card__metrics {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  width: 100%;
  max-width: 280px;
}

.metric-box {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: var(--space-md);
  text-align: center;
}

.metric-box__val {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-accent-muted);
}

.metric-box__lbl {
  font-size: 0.6875rem;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 0.25rem;
}

/* 統計列 */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--color-border);
}

.stats-row__item {
  padding: var(--space-lg);
  text-align: center;
  border-right: 1px solid var(--color-border);
}

.stats-row__item:last-child {
  border-right: none;
}

.stats-row__num {
  font-family: var(--font-mono);
  font-size: var(--font-size-2xl);
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.stats-row__lbl {
  font-size: 0.75rem;
  color: var(--color-text-light);
}

/* 主站 header 升級 */
.site-header--corp {
  background: rgba(12, 18, 34, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.site-header--corp .site-logo {
  color: inherit;
}

.site-header--corp .site-logo__name {
  color: #ffffff;
  font-size: 1rem;
  font-weight: 600;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}

.site-header--corp .site-logo:hover .site-logo__name {
  color: #b8d4ff;
}

.site-header--corp .site-logo__en {
  color: rgba(255, 255, 255, 0.68);
  font-weight: 500;
}

.site-header--corp .site-logo__img {
  height: 44px;
  max-width: 100px;
}

@media (max-width: 640px) {
  .site-header--corp .site-logo__text {
    display: none;
  }

  .site-header--corp .site-logo__img {
    height: 40px;
    max-width: 130px;
  }
}

.site-header--corp .site-nav__link {
  color: rgba(255, 255, 255, 0.6);
}

.site-header--corp .site-nav__link:hover,
.site-header--corp .site-nav__link--active {
  color: white;
  border-bottom-color: var(--color-accent);
}

.site-header--corp .nav-toggle span {
  background: white;
}

@media (max-width: 1024px) {
  .site-header--corp .site-nav {
    background: var(--color-bg-dark);
    border-bottom-color: rgba(255, 255, 255, 0.08);
  }

  .site-header--corp .site-nav__link {
    border-bottom-color: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.7);
  }
}

/* 按鈕科技風 */
.btn--accent {
  background: var(--color-accent);
  color: white;
  border-color: var(--color-accent);
}

.btn--accent:hover {
  background: #2d7ae8;
  border-color: #2d7ae8;
  color: white;
}

.hero--tech .btn--primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.hero--tech .btn--primary:hover {
  background: #2d7ae8;
  border-color: #2d7ae8;
}

/* 連結到子站 */
.subsite-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: var(--space-md) var(--space-lg);
  border: 1px solid var(--color-border);
  background: var(--color-white);
  transition: border-color var(--transition);
}

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

.subsite-link__brand {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--color-primary);
}

.subsite-link__meta {
  font-size: 0.75rem;
  color: var(--color-text-light);
}

/* 內頁深色 hero */
.page-hero--tech {
  background: var(--color-bg-dark);
  color: white;
  border-bottom: none;
}

.page-hero--tech h1 {
  color: white;
}

.page-hero--tech p {
  color: rgba(255, 255, 255, 0.6);
}

.page-hero--tech .page-hero__mono {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

@media (max-width: 768px) {
  .cap-matrix {
    grid-template-columns: 1fr;
  }

  .code-showcase {
    grid-template-columns: 1fr;
  }

  .product-card {
    grid-template-columns: 1fr;
  }

  .stats-row {
    grid-template-columns: 1fr 1fr;
  }

  .stats-row__item {
    border-bottom: 1px solid var(--color-border);
  }

  .stats-row__item:nth-child(2n) {
    border-right: none;
  }
}