/* ===== RESET ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%}
body{min-height:100vh;background:#FFF8E1;color:#212121;font-family:-apple-system,'Noto Sans SC','Microsoft YaHei','PingFang SC',sans-serif;font-weight:400;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
img{max-width:100%;display:block;height:auto}
button,input,select,textarea{font:inherit;color:inherit;border:none;background:none;outline:none}
button{cursor:pointer}
:focus-visible{outline:3px solid #FFD54F;outline-offset:2px;border-radius:4px}

/* ===== CSS VARIABLES ===== */
:root{
  --color-primary:#E53935;
  --color-primary-dark:#B71C1C;
  --color-secondary:#1A237E;
  --color-secondary-light:#283593;
  --color-accent:#FFD54F;
  --color-accent-dark:#FFC107;
  --color-bg-gray:#E0E0E0;
  --color-bg-cream:#FFF8E1;
  --color-text:#212121;
  --color-text-light:#616161;
  --color-link:#FF7043;
  --color-link-hover:#FF8A65;
  --color-green:#7CB342;
  --color-terracotta:#D84315;
  --color-white:#FFFFFF;
  --font-heading:Impact,'Arial Black','Franklin Gothic Heavy',sans-serif;
  --font-body:-apple-system,'Noto Sans SC','Microsoft YaHei','PingFang SC',sans-serif;
  --font-digit:'Courier New','Orbitron',monospace;
  --size-h1:clamp(2.5rem,5vw,3.5rem);
  --size-h2:clamp(2rem,4vw,2.5rem);
  --size-h3:clamp(1.25rem,2.5vw,1.75rem);
  --size-body:1rem;
  --size-small:0.75rem;
  --space-xs:0.25rem;
  --space-sm:0.5rem;
  --space-md:1rem;
  --space-lg:2rem;
  --space-xl:3rem;
  --space-2xl:4rem;
  --max-width:1200px;
  --header-height:72px;
  --transition:0.25s cubic-bezier(0.4,0,0.2,1);
  --shadow-sm:0 2px 8px rgba(0,0,0,0.08);
  --shadow-md:0 4px 20px rgba(0,0,0,0.12);
}

/* ===== UTILITY ===== */
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 var(--space-lg)}
@media(max-width:768px){.container{padding:0 var(--space-md)}}

/* ===== TYPOGRAPHY ===== */
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;letter-spacing:1px;line-height:1.15;color:var(--color-text)}
h1{font-size:var(--size-h1);text-transform:uppercase}
h2{font-size:var(--size-h2)}
h3{font-size:var(--size-h3)}
p,li,span{font-family:var(--font-body);font-size:var(--size-body);line-height:1.6}
.section-title{font-family:var(--font-heading);font-size:var(--size-h2);position:relative;padding-bottom:var(--space-md);margin-bottom:var(--space-lg);text-transform:uppercase}
.section-title::after{content:'';position:absolute;bottom:0;left:0;width:80px;height:4px;background:linear-gradient(135deg,var(--color-accent),var(--color-primary));clip-path:polygon(0 0,100% 0,90% 100%,0 100%)}
.text-link{color:var(--color-link);transition:color var(--transition);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--color-accent)}
.text-link:hover,.text-link:focus-visible{color:var(--color-link-hover);text-decoration-color:var(--color-link-hover)}

/* ===== BUTTONS ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:0.75rem 2rem;font-family:var(--font-heading);font-size:var(--size-body);font-weight:700;letter-spacing:1px;text-transform:uppercase;border-radius:4px;transition:all var(--transition);background:var(--color-primary);color:var(--color-white);border:2px solid transparent;min-height:48px}
.btn:hover,.btn:focus-visible{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-secondary{background:var(--color-terracotta)}
.btn-secondary:hover,.btn-secondary:focus-visible{background:#BF360C}
.btn-outline{background:transparent;border-color:var(--color-primary);color:var(--color-primary)}
.btn-outline:hover,.btn-outline:focus-visible{background:var(--color-primary);color:var(--color-white)}

/* ===== SKIP LINK ===== */
.skip-link{position:fixed;top:-100%;left:var(--space-md);z-index:10000;padding:var(--space-sm) var(--space-md);background:var(--color-secondary);color:var(--color-white);font-weight:700;border-radius:0 0 4px 4px;transition:top var(--transition)}
.skip-link:focus{top:0;outline:3px solid var(--color-accent);outline-offset:2px}

/* ===== HEADER ===== */
.site-header{position:sticky;top:0;z-index:1000;background:var(--color-secondary);color:var(--color-white);box-shadow:var(--shadow-sm);transition:background var(--transition)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-height)}
.header-brand{display:flex;align-items:baseline;gap:var(--space-xs);font-family:var(--font-heading);font-size:1.5rem;letter-spacing:1px;color:var(--color-white);transition:color var(--transition);flex-shrink:0}
.header-brand:hover{color:var(--color-accent)}
.brand-name{font-weight:700}
.brand-suffix{font-weight:400;color:var(--color-accent);font-size:1.1em}
.header-nav{display:flex;align-items:center}
.nav-list{display:flex;align-items:center;gap:var(--space-xs)}
.nav-list li a{display:block;padding:var(--space-sm) var(--space-md);font-family:var(--font-heading);font-size:0.9rem;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--color-white);border-radius:4px;transition:all var(--transition);position:relative}
.nav-list li a:hover,.nav-list li a:focus-visible{color:var(--color-accent);background:rgba(255,213,79,0.1)}
.nav-list li a[aria-current="page"]{color:var(--color-accent);background:rgba(255,213,79,0.15)}
.nav-list li a[aria-current="page"]::after{content:'';position:absolute;bottom:2px;left:var(--space-md);right:var(--space-md);height:3px;background:var(--color-accent);clip-path:polygon(0 0,100% 0,90% 100%,0 100%)}

/* Header diagonal divider */
.header-diagonal{height:6px;background:linear-gradient(135deg,var(--color-accent) 0%,var(--color-primary) 60%,var(--color-secondary) 100%);clip-path:polygon(0 0,100% 0,100% 100%,0 30%)}

/* Nav toggle (mobile) */
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;padding:8px;background:transparent;border:2px solid var(--color-accent);border-radius:4px;cursor:pointer;transition:border-color var(--transition)}
.nav-toggle-line{display:block;width:100%;height:2px;background:var(--color-accent);transition:all var(--transition);border-radius:2px}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* ===== FOOTER ===== */
.site-footer{background:var(--color-secondary);color:var(--color-white);margin-top:var(--space-2xl)}
.footer-diagonal{height:8px;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-accent) 60%,var(--color-secondary) 100%);clip-path:polygon(0 60%,100% 0,100% 100%,0 100%)}
.footer-inner{padding-top:var(--space-xl);padding-bottom:var(--space-lg)}
.footer-top{display:grid;grid-template-columns:2fr 2fr 1fr;gap:var(--space-xl);margin-bottom:var(--space-xl)}
.footer-brand{display:flex;flex-direction:column;gap:var(--space-sm)}
.footer-logo{font-family:var(--font-heading);font-size:1.75rem;font-weight:700;letter-spacing:1px;color:var(--color-white);transition:color var(--transition)}
.footer-logo:hover{color:var(--color-accent)}
.logo-cmp{color:var(--color-accent);font-weight:400}
.footer-tagline{font-size:0.9rem;color:rgba(255,255,255,0.75);max-width:360px;line-height:1.5}
.footer-contact{display:flex;flex-direction:column;gap:var(--space-sm)}
.contact-item{font-size:0.9rem;color:rgba(255,255,255,0.8)}
.contact-item .text-link{color:var(--color-accent);text-decoration-color:rgba(255,213,79,0.4)}
.contact-item .text-link:hover{color:var(--color-white);text-decoration-color:var(--color-accent)}
.address{font-style:normal}
.footer-links{display:flex;flex-direction:column;gap:var(--space-sm)}
.footer-link{font-family:var(--font-heading);font-size:0.85rem;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--color-accent);padding:var(--space-xs) 0;transition:color var(--transition);border-bottom:1px solid rgba(255,213,79,0.15)}
.footer-link:hover,.footer-link:focus-visible{color:var(--color-white);border-bottom-color:var(--color-accent)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:var(--space-lg);border-top:1px solid rgba(255,255,255,0.1);font-size:var(--size-small);color:rgba(255,255,255,0.6);flex-wrap:wrap;gap:var(--space-sm)}
.footer-copyright{font-family:var(--font-body)}
.footer-icp{font-family:var(--font-body)}

/* ===== SCROLL PROGRESS BAR ===== */
[data-scroll-progress]{position:fixed;top:0;left:0;z-index:10000;height:4px;background:linear-gradient(90deg,var(--color-primary),var(--color-accent));width:0%;transition:width 0.1s linear;pointer-events:none}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .footer-top{grid-template-columns:1fr 1fr;gap:var(--space-lg)}
}
@media(max-width:768px){
  .header-inner{height:64px}
  .nav-toggle{display:flex}
  .header-nav{position:fixed;top:64px;left:0;right:0;background:var(--color-secondary);padding:var(--space-md);box-shadow:var(--shadow-md);transform:translateY(-110%);opacity:0;visibility:hidden;transition:all var(--transition);border-bottom:3px solid var(--color-accent)}
  .header-nav[data-open]{transform:translateY(0);opacity:1;visibility:visible}
  .nav-list{flex-direction:column;gap:var(--space-xs);width:100%}
  .nav-list li a{padding:var(--space-md);text-align:center;font-size:1rem;width:100%}
  .nav-list li a[aria-current="page"]::after{left:var(--space-lg);right:var(--space-lg)}
  .footer-top{grid-template-columns:1fr;gap:var(--space-lg)}
  .footer-brand{align-items:center;text-align:center}
  .footer-tagline{max-width:100%}
  .footer-contact{align-items:center;text-align:center}
  .footer-links{align-items:center}
  .footer-bottom{flex-direction:column;text-align:center}
  .header-diagonal{height:4px;clip-path:polygon(0 0,100% 0,100% 100%,0 20%)}
  .footer-diagonal{height:5px;clip-path:polygon(0 30%,100% 0,100% 100%,0 100%)}
}

/* ===== PREFERS REDUCED MOTION ===== */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:0.01ms!important;animation-duration:0.01ms!important;scroll-behavior:auto!important}
  .header-nav{transition:none}
  .btn:hover{transform:none}
}

/* ===== FOCUS VISIBLE ===== */
:focus-visible{outline:3px solid var(--color-accent);outline-offset:2px;border-radius:4px}
.nav-toggle:focus-visible{border-color:var(--color-accent);box-shadow:0 0 0 3px rgba(255,213,79,0.3)}
.btn:focus-visible{outline-color:var(--color-accent);box-shadow:0 0 0 3px rgba(255,213,79,0.3)}

/* ===== IMAGE CONTAINER BASE ===== */
.img-container{position:relative;overflow:hidden;background:var(--color-bg-gray);border-radius:4px;width:100%}
.img-container img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition)}
.img-container:hover img{transform:scale(1.03)}
.img-container .img-placeholder{display:flex;align-items:center;justify-content:center;min-height:200px;color:var(--color-text-light);font-family:var(--font-heading);font-size:var(--size-small);text-transform:uppercase;letter-spacing:1px;background:linear-gradient(135deg,var(--color-bg-gray),var(--color-bg-cream))}