*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --red: #E8001D; --red-dark: #b5001a; --red-glow: rgba(232,0,29,0.35);
    --dark: #070a10; --dark-2: #0d1018; --dark-3: #131825;
    --card: #161d2e; --card-2: #1c2438;
    --border: rgba(255,255,255,0.07); --border-red: rgba(232,0,29,0.3);
    --txt: #e8eaf6; --txt-2: #8892b0; --txt-3: #4a5375;
    --font: 'Noto Sans SC','Inter',sans-serif;
    --ease: cubic-bezier(0.16,1,0.3,1);
    --r-sm: 10px; --r-md: 16px; --r-lg: 24px;
}
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--dark); color: var(--txt); overflow-x: hidden; line-height: 1.6; }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dark-2); }
::-webkit-scrollbar-thumb { background: var(--red); border-radius: 3px; }
h1,h2,h3,h4 { font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; }
.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 24px; }

/* NAV */
#nav { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 20px 0; transition: all 0.4s var(--ease); }
#nav.scrolled { padding: 12px 0; background: rgba(7,10,16,0.9); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nav-logo-icon { width: 38px; height: 38px; background: var(--red); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 18px; color: white; box-shadow: 0 0 20px var(--red-glow); }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav-links a { text-decoration: none; color: var(--txt-2); font-size: 14px; font-weight: 500; padding: 8px 14px; border-radius: 8px; transition: all 0.25s; }
.nav-links a:hover { color: var(--txt); background: rgba(255,255,255,0.06); }
.nav-links a.active { color: var(--red); }
.nav-phone { display: flex; align-items: center; gap: 8px; background: rgba(232,0,29,0.08); border: 1px solid var(--border-red); border-radius: 10px; padding: 8px 16px; font-size: 13px; font-weight: 600; color: var(--red); text-decoration: none; transition: all 0.25s; }
.nav-phone:hover { background: rgba(232,0,29,0.15); }
.nav-menu-btn { display: none; background: none; border: 1px solid var(--border); border-radius: 8px; color: var(--txt); font-size: 22px; padding: 6px 10px; cursor: pointer; }
.mobile-menu { position: fixed; inset: 0; background: rgba(7,10,16,0.97); backdrop-filter: blur(20px); z-index: 999; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; opacity: 0; pointer-events: none; transition: opacity 0.3s; }
.mobile-menu.open { opacity: 1; pointer-events: auto; }
.mobile-menu a { text-decoration: none; color: var(--txt); font-size: 24px; font-weight: 700; padding: 12px 40px; border-radius: 12px; transition: all 0.25s; }
.mobile-menu a:hover { color: var(--red); }
.mobile-menu-close { position: absolute; top: 24px; right: 24px; background: none; border: 1px solid var(--border); border-radius: 10px; color: var(--txt); font-size: 24px; padding: 8px 12px; cursor: pointer; }

/* PAGE HERO */
.page-hero { padding: 140px 0 80px; background: var(--dark-2); position: relative; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse 60% 60% at 50% 0%, rgba(232,0,29,0.08) 0%, transparent 70%); }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--txt-3); margin-bottom: 20px; }
.breadcrumb a { color: var(--txt-3); text-decoration: none; transition: color 0.2s; }
.breadcrumb a:hover { color: var(--red); }
.breadcrumb i { font-size: 12px; }
.page-title { font-size: clamp(32px, 5vw, 56px); margin-bottom: 16px; }
.page-desc { font-size: 16px; color: var(--txt-2); max-width: 560px; }

/* SECTION */
.section { padding: 80px 0; }
.section-label { display: inline-flex; align-items: center; gap: 8px; background: rgba(232,0,29,0.1); border: 1px solid var(--border-red); border-radius: 100px; padding: 6px 16px; font-size: 12px; font-weight: 600; color: var(--red); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 16px; }
.section-label::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--red); box-shadow: 0 0 8px var(--red); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(.8)} }
.section-title { font-size: clamp(24px,3.5vw,38px); margin-bottom: 16px; }
.section-subtitle { font-size: 15px; color: var(--txt-2); max-width: 600px; line-height: 1.7; }

/* FOOTER */
footer { background: var(--dark-2); border-top: 1px solid var(--border); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid var(--border); }
.footer-brand-desc { font-size: 13px; color: var(--txt-3); line-height: 1.8; margin-top: 12px; }
.footer-col-title { font-size: 14px; font-weight: 700; margin-bottom: 20px; }
.footer-nav-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-nav-list a { font-size: 13px; color: var(--txt-3); text-decoration: none; display: flex; align-items: center; gap: 6px; transition: all 0.2s; }
.footer-nav-list a:hover { color: var(--red); }
.footer-contact-info { display: flex; flex-direction: column; gap: 14px; }
.footer-contact-row { display: flex; gap: 12px; font-size: 13px; }
.footer-contact-row i { color: var(--red); font-size: 16px; margin-top: 1px; flex-shrink: 0; }
.footer-contact-row-text { color: var(--txt-2); line-height: 1.7; }
.footer-bottom { padding: 20px 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; font-size: 12px; color: var(--txt-3); flex-wrap: wrap; }
.footer-bottom a { color: var(--txt-3); text-decoration: none; }
.footer-bottom a:hover { color: var(--txt-2); }
.footer-links-row { display: flex; gap: 16px; }

/* BACK TOP */
#back-top { position: fixed; bottom: 32px; right: 32px; width: 44px; height: 44px; background: var(--red); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: white; font-size: 18px; text-decoration: none; opacity: 0; pointer-events: none; transform: translateY(12px); transition: all 0.3s var(--ease); box-shadow: 0 8px 24px var(--red-glow); z-index: 900; }
#back-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
#back-top:hover { transform: translateY(-3px); }

/* REVEAL */
.reveal { opacity: 0; transform: translateY(28px); transition: all 0.7s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* RESPONSIVE */
@media(max-width:1100px){
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media(max-width:900px){
    .nav-links, .nav-phone { display: none; }
    .nav-menu-btn { display: flex; }
}
@media(max-width:600px){
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; text-align: center; }
}