/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: 'Segoe UI', 'Noto Sans SC', Arial, sans-serif; background: #0B1D3A; color: #FFFFFF; line-height: 1.6; min-height: 100vh; }
ul, ol { list-style: none; }
a { color: #7B2FF7; text-decoration: none; transition: color 0.3s ease; }
a:hover, a:focus-visible { color: #39FF14; }
img, svg { max-width: 100%; height: auto; display: block; }
button { border: none; background: none; cursor: pointer; font: inherit; color: inherit; }
:focus-visible { outline: 2px solid #39FF14; outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } }
/* ===== CSS Variables ===== */
:root {
  --color-bg: #0B1D3A;
  --color-bg-card: #102A4A;
  --color-accent1: #7B2FF7;
  --color-accent2: #39FF14;
  --color-text-primary: #FFFFFF;
  --color-text-secondary: #B0BEC5;
  --color-border: #1E3A5F;
  --color-error: #FF6B6B;
  --color-gradient: linear-gradient(135deg, #7B2FF7, #39FF14);
  --font-heading: Arial, 'Noto Sans SC', sans-serif;
  --font-mono: 'Courier New', 'Noto Sans Mono', monospace;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --width-max: 1200px;
  --nav-width: 200px;
  --header-height: 60px;
}
/* ===== Skip Link ===== */
.skip-link { position: absolute; top: -100px; left: 0; z-index: 1000; padding: 0.5rem 1rem; background: var(--color-accent2); color: #0B1D3A; font-weight: bold; }
.skip-link:focus { top: 0; }
/* ===== Progress Bar ===== */
.nuoya-progress-bar { position: fixed; top: 0; left: 0; height: 3px; background: var(--color-accent2); z-index: 1001; width: 0%; transition: width linear; }
/* ===== Header ===== */
.nuoya-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(11,29,58,0.95); backdrop-filter: blur(8px); border-bottom: 1px solid var(--color-border); height: var(--header-height); display: flex; align-items: center; padding: 0 var(--spacing-sm); }
.nuoya-header-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; max-width: var(--width-max); margin: 0 auto; }
.nuoya-logo { display: flex; flex-direction: column; line-height: 1.2; }
.nuoya-logo-text { font-family: var(--font-heading); font-weight: 900; font-size: 1.5rem; color: #fff; letter-spacing: -0.02em; }
.nuoya-logo-subtext { font-size: 0.75rem; color: var(--color-accent2); text-transform: uppercase; letter-spacing: 0.15em; }
.nuoya-nav-toggle { display: flex; flex-direction: column; justify-content: center; align-items: center; width: 36px; height: 36px; border: 1px solid var(--color-border); border-radius: 4px; transition: border-color 0.3s; }
.nuoya-nav-toggle:hover, .nuoya-nav-toggle:focus-visible { border-color: var(--color-accent1); }
.nuoya-nav-toggle-icon { display: block; width: 20px; height: 2px; background: #fff; position: relative; transition: background 0.3s; }
.nuoya-nav-toggle-icon::before, .nuoya-nav-toggle-icon::after { content: ''; position: absolute; left: 0; width: 100%; height: 2px; background: #fff; transition: transform 0.3s; }
.nuoya-nav-toggle-icon::before { top: -6px; }
.nuoya-nav-toggle-icon::after { top: 6px; }
.nuoya-nav-toggle[aria-expanded="true"] .nuoya-nav-toggle-icon { background: transparent; }
.nuoya-nav-toggle[aria-expanded="true"] .nuoya-nav-toggle-icon::before { transform: translateY(6px) rotate(45deg); }
.nuoya-nav-toggle[aria-expanded="true"] .nuoya-nav-toggle-icon::after { transform: translateY(-6px) rotate(-45deg); }
/* ===== Navigation ===== */
.nuoya-nav { position: fixed; top: var(--header-height); left: 0; width: var(--nav-width); height: calc(100vh - var(--header-height)); background: rgba(16,42,74,0.95); backdrop-filter: blur(8px); border-right: 1px solid var(--color-border); transform: translateX(-100%); transition: transform 0.3s ease; z-index: 999; padding: var(--spacing-md) 0; overflow-y: auto; }
.nuoya-nav[data-open] { transform: translateX(0); }
.nuoya-nav-list { display: flex; flex-direction: column; gap: 0; }
.nuoya-nav-link { display: block; padding: 0.75rem 1.5rem; font-family: var(--font-heading); font-weight: 700; font-size: 1rem; color: var(--color-text-secondary); border-left: 3px solid transparent; transition: all 0.2s; }
.nuoya-nav-link:hover, .nuoya-nav-link:focus-visible { color: #fff; background: rgba(123,47,247,0.2); border-left-color: var(--color-accent1); }
.nuoya-nav-link[aria-current="page"] { color: var(--color-accent2); border-left-color: var(--color-accent2); background: rgba(57,255,20,0.1); }
/* ===== Footer ===== */
.nuoya-footer { background: #0B1D3A; border-top: 1px solid var(--color-border); padding: var(--spacing-lg) var(--spacing-sm); margin-top: var(--spacing-lg); }
.nuoya-footer-inner { max-width: var(--width-max); margin: 0 auto; display: grid; grid-template-columns: 1fr; gap: var(--spacing-md); text-align: center; }
.nuoya-footer-brand { display: flex; flex-direction: column; align-items: center; }
.nuoya-footer-logo { font-family: var(--font-heading); font-weight: 900; font-size: 1.25rem; color: #fff; }
.nuoya-footer-sub { color: var(--color-accent2); font-size: 0.75rem; text-transform: uppercase; }
.nuoya-footer-nav { display: flex; justify-content: center; gap: var(--spacing-sm); flex-wrap: wrap; }
.nuoya-footer-link { color: var(--color-text-secondary); font-size: 0.9rem; transition: color 0.3s; }
.nuoya-footer-link:hover { color: var(--color-accent2); }
.nuoya-footer-info p { margin-bottom: 0.25rem; font-size: 0.85rem; color: var(--color-text-secondary); }
.nuoya-footer-copy { margin-top: var(--spacing-xs); font-size: 0.8rem; opacity: 0.7; }
/* ===== Common Components ===== */
.nuoya-container { max-width: var(--width-max); margin: 0 auto; padding: 0 var(--spacing-sm); }
.nuoya-section { padding: var(--spacing-lg) 0; }
.nuoya-card { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: 8px; padding: var(--spacing-md); transition: box-shadow 0.3s, transform 0.3s; }
.nuoya-card:hover { box-shadow: 0 8px 24px rgba(123,47,247,0.2); transform: translateY(-2px); }
.nuoya-btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.6rem 1.5rem; font-family: var(--font-heading); font-weight: 700; font-size: 0.9rem; border-radius: 4px; border: 1px solid transparent; transition: all 0.3s; cursor: pointer; }
.nuoya-btn-primary { background: var(--color-gradient); color: #0B1D3A; border-color: transparent; }
.nuoya-btn-primary:hover { filter: brightness(1.1); }
.nuoya-btn-outline { background: transparent; border-color: var(--color-accent1); color: var(--color-accent1); }
.nuoya-btn-outline:hover { background: var(--color-accent1); color: #fff; }
/* ===== Back to Top ===== */
.nuoya-back-to-top { position: fixed; bottom: 2rem; right: 2rem; width: 48px; height: 48px; border-radius: 50%; background: var(--color-gradient); color: #0B1D3A; display: flex; align-items: center; justify-content: center; border: none; cursor: pointer; opacity: 0; visibility: hidden; transition: opacity 0.3s, visibility 0.3s; z-index: 998; font-size: 1.2rem; }
.nuoya-back-to-top.visible { opacity: 1; visibility: visible; }
/* ===== Image Container Base ===== */
.nuoya-img-wrapper { position: relative; overflow: hidden; background: var(--color-bg-card); aspect-ratio: 16/9; border-radius: 4px; }
.nuoya-img-wrapper::after { content: ''; position: absolute; inset: 0; background: linear-gradient(45deg, rgba(123,47,247,0.1), rgba(57,255,20,0.1)); }
/* ===== Responsive ===== */
@media (min-width: 769px) {
  .nuoya-nav-toggle { display: none; }
  .nuoya-nav { transform: translateX(0); left: 0; }
  .nuoya-header { padding-left: calc(var(--nav-width) + var(--spacing-sm)); }
  .nuoya-footer-inner { grid-template-columns: 1fr 2fr 1fr; text-align: left; }
  .nuoya-footer-brand { align-items: flex-start; }
  .nuoya-footer-nav { justify-content: flex-start; }
}
@media (max-width: 768px) {
  .nuoya-nav { width: 100%; border-right: none; border-bottom: 1px solid var(--color-border); }
  .nuoya-nav-link { padding: 1rem 1.5rem; font-size: 1.1rem; border-left-width: 4px; }
  .nuoya-back-to-top { bottom: 1rem; right: 1rem; }
}
@media (min-width: 1200px) {
  .nuoya-container { padding: 0 var(--spacing-md); }
  .nuoya-section { padding: var(--spacing-lg) 0; }
}