/* ============================================
   Beijing Xinqi Technology Co., Ltd.
   Animations & Effects
   ============================================ */

/* ============================================
   KEYFRAME ANIMATIONS
   ============================================ */

/* Fade In Up */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade In Down */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade In Left */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Fade In Right */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scale In */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Rotate In */
@keyframes rotateIn {
    from {
        opacity: 0;
        transform: rotate(-180deg);
    }
    to {
        opacity: 1;
        transform: rotate(0deg);
    }
}

/* Slide In From Left */
@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

/* Slide In From Right */
@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }
    to {
        transform: translateX(0);
    }
}

/* Pulse */
@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Glow */
@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px var(--color-primary), 0 0 10px var(--color-primary), 0 0 15px var(--color-primary);
    }
    50% {
        box-shadow: 0 0 10px var(--color-primary), 0 0 20px var(--color-primary), 0 0 30px var(--color-primary);
    }
}

/* Shimmer */
@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* Float */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* Line Grow */
@keyframes lineGrow {
    from {
        transform: scaleX(0);
    }
    to {
        transform: scaleX(1);
    }
}

/* Text Reveal */
@keyframes textReveal {
    from {
        clip-path: inset(0 100% 0 0);
    }
    to {
        clip-path: inset(0 0 0 0);
    }
}

/* Border Draw */
@keyframes borderDraw {
    from {
        stroke-dashoffset: 1000;
    }
    to {
        stroke-dashoffset: 0;
    }
}

/* Particle Float */
@keyframes particleFloat {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.3;
    }
    25% {
        transform: translate(20px, -30px) scale(1.2);
        opacity: 0.6;
    }
    50% {
        transform: translate(-10px, -60px) scale(0.8);
        opacity: 0.4;
    }
    75% {
        transform: translate(-30px, -30px) scale(1.1);
        opacity: 0.5;
    }
}

/* ============================================
   ANIMATION CLASSES
   ============================================ */

/* Initial State */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Fade Animations */
.fade-in {
    animation: fadeInUp 0.8s ease forwards;
}

.fade-in-up {
    animation: fadeInUp 0.8s ease forwards;
}

.fade-in-down {
    animation: fadeInDown 0.8s ease forwards;
}

.fade-in-left {
    animation: fadeInLeft 0.8s ease forwards;
}

.fade-in-right {
    animation: fadeInRight 0.8s ease forwards;
}

.scale-in {
    animation: scaleIn 0.6s ease forwards;
}

/* Stagger Delays */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }
.delay-6 { animation-delay: 0.6s; }

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */

/* Hero Animations */
.hero-badge {
    animation: fadeInDown 1s ease 0.2s forwards;
    opacity: 0;
}

.hero h1 {
    animation: fadeInUp 1s ease 0.4s forwards;
    opacity: 0;
}

.hero-subtitle {
    animation: fadeInUp 1s ease 0.6s forwards;
    opacity: 0;
}

.hero-cta {
    animation: fadeInUp 1s ease 0.8s forwards;
    opacity: 0;
}

.scroll-indicator {
    animation: fadeInUp 1s ease 1s forwards, bounce 2s ease-in-out 2s infinite;
    opacity: 0;
}

/* Section Title Animation */
.section-title .subtitle {
    animation: fadeInDown 0.8s ease forwards;
    opacity: 0;
}

.section-title h2 {
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.section-title p {
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

/* Service Cards Stagger */
.services-grid .service-card:nth-child(1) {
    animation: fadeInUp 0.8s ease 0.1s forwards;
    opacity: 0;
}

.services-grid .service-card:nth-child(2) {
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.services-grid .service-card:nth-child(3) {
    animation: fadeInUp 0.8s ease 0.3s forwards;
    opacity: 0;
}

.services-grid .service-card:nth-child(4) {
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.services-grid .service-card:nth-child(5) {
    animation: fadeInUp 0.8s ease 0.5s forwards;
    opacity: 0;
}

.services-grid .service-card:nth-child(6) {
    animation: fadeInUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

/* Feature Items Stagger */
.features-grid .feature-item:nth-child(1) {
    animation: fadeInUp 0.8s ease 0.1s forwards;
    opacity: 0;
}

.features-grid .feature-item:nth-child(2) {
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.features-grid .feature-item:nth-child(3) {
    animation: fadeInUp 0.8s ease 0.3s forwards;
    opacity: 0;
}

.features-grid .feature-item:nth-child(4) {
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.features-grid .feature-item:nth-child(5) {
    animation: fadeInUp 0.8s ease 0.5s forwards;
    opacity: 0;
}

.features-grid .feature-item:nth-child(6) {
    animation: fadeInUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

/* News Cards Stagger */
.news-grid .news-card:nth-child(1) {
    animation: fadeInUp 0.8s ease 0.1s forwards;
    opacity: 0;
}

.news-grid .news-card:nth-child(2) {
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.news-grid .news-card:nth-child(3) {
    animation: fadeInUp 0.8s ease 0.3s forwards;
    opacity: 0;
}

.news-grid .news-card:nth-child(4) {
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.news-grid .news-card:nth-child(5) {
    animation: fadeInUp 0.8s ease 0.5s forwards;
    opacity: 0;
}

.news-grid .news-card:nth-child(6) {
    animation: fadeInUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

/* Culture Cards Stagger */
.culture-grid .culture-card:nth-child(1) {
    animation: fadeInUp 0.8s ease 0.1s forwards;
    opacity: 0;
}

.culture-grid .culture-card:nth-child(2) {
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.culture-grid .culture-card:nth-child(3) {
    animation: fadeInUp 0.8s ease 0.3s forwards;
    opacity: 0;
}

.culture-grid .culture-card:nth-child(4) {
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

/* ============================================
   HOVER EFFECTS
   ============================================ */

/* Card Hover */
.service-card,
.news-card,
.culture-card {
    transition: transform 0.5s ease, box-shadow 0.5s ease, border-color 0.5s ease;
}

.service-card:hover,
.news-card:hover,
.culture-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(201, 169, 97, 0.15);
}

/* Icon Hover */
.service-card:hover .service-icon svg,
.feature-item:hover .feature-icon svg {
    transform: scale(1.1);
}

.service-icon svg,
.feature-icon svg {
    transition: transform 0.3s ease;
}

/* Button Hover Effects */
.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

/* Link Underline Animation */
.nav-item a {
    position: relative;
}

.nav-item a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width 0.3s ease;
}

.nav-item a:hover::after {
    width: 100%;
}

/* Image Zoom on Hover */
.news-image {
    overflow: hidden;
}

.news-image svg {
    transition: transform 0.5s ease;
}

.news-card:hover .news-image svg {
    transform: scale(1.1);
}

/* ============================================
   PARALLAX EFFECTS
   ============================================ */

.parallax-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 120%;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

/* ============================================
   LOADING ANIMATIONS
   ============================================ */

.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-black);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.loaded {
    opacity: 0;
    visibility: hidden;
}

.loader {
    width: 60px;
    height: 60px;
    border: 3px solid var(--color-black-lighter);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   SCROLL PROGRESS
   ============================================ */

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
    z-index: 1001;
    transition: width 0.1s linear;
}

/* ============================================
   PARTICLES BACKGROUND
   ============================================ */

.particles-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: particleFloat 10s infinite ease-in-out;
}

.particle:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; top: 80%; animation-delay: 1s; }
.particle:nth-child(3) { left: 30%; top: 40%; animation-delay: 2s; }
.particle:nth-child(4) { left: 40%; top: 60%; animation-delay: 3s; }
.particle:nth-child(5) { left: 50%; top: 30%; animation-delay: 4s; }
.particle:nth-child(6) { left: 60%; top: 70%; animation-delay: 5s; }
.particle:nth-child(7) { left: 70%; top: 50%; animation-delay: 6s; }
.particle:nth-child(8) { left: 80%; top: 25%; animation-delay: 7s; }
.particle:nth-child(9) { left: 90%; top: 85%; animation-delay: 8s; }
.particle:nth-child(10) { left: 15%; top: 55%; animation-delay: 9s; }

/* ============================================
   DECORATIVE ELEMENTS
   ============================================ */

/* Gradient Lines */
.gradient-line {
    width: 100px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), transparent);
    margin: 20px auto;
}

.gradient-line-left {
    background: linear-gradient(90deg, var(--color-primary), transparent);
}

.gradient-line-right {
    background: linear-gradient(90deg, transparent, var(--color-primary));
}

/* Corner Decorations */
.corner-decoration {
    position: absolute;
    width: 100px;
    height: 100px;
    border: 2px solid var(--color-primary);
    opacity: 0.3;
}

.corner-decoration.top-left {
    top: 20px;
    left: 20px;
    border-right: none;
    border-bottom: none;
}

.corner-decoration.top-right {
    top: 20px;
    right: 20px;
    border-left: none;
    border-bottom: none;
}

.corner-decoration.bottom-left {
    bottom: 20px;
    left: 20px;
    border-right: none;
    border-top: none;
}

.corner-decoration.bottom-right {
    bottom: 20px;
    right: 20px;
    border-left: none;
    border-top: none;
}

/* Shimmer Effect */
.shimmer {
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(201, 169, 97, 0.1) 50%, 
        transparent 100%);
    background-size: 200% 100%;
    animation: shimmer 3s infinite;
}

/* ============================================
   COUNTER ANIMATION
   ============================================ */

.counter {
    display: inline-block;
}

.counter-value {
    font-size: 3rem;
    font-weight: 300;
    color: var(--color-primary);
}

/* ============================================
   TEXT ANIMATIONS
   ============================================ */

/* Typewriter Effect */
.typewriter {
    overflow: hidden;
    white-space: nowrap;
    animation: typewriter 3s steps(30) 1s forwards;
    width: 0;
}

@keyframes typewriter {
    to { width: 100%; }
}

/* Word Reveal */
.word-reveal {
    display: inline-block;
    overflow: hidden;
}

.word-reveal span {
    display: inline-block;
    transform: translateY(100%);
    animation: wordReveal 0.5s ease forwards;
}

@keyframes wordReveal {
    to { transform: translateY(0); }
}

/* ============================================
   MENU ANIMATIONS
   ============================================ */

/* Mobile Menu */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: rgba(10, 10, 10, 0.98);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 30px;
    transition: right 0.5s ease;
    z-index: 999;
}

.mobile-nav.active {
    right: 0;
}

.mobile-nav a {
    font-size: 1.5rem;
    color: var(--color-white);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

.mobile-nav a:hover {
    color: var(--color-primary);
}

/* ============================================
   LIGHTBOX / MODAL
   ============================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 2000;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    max-width: 90%;
    max-height: 90%;
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

/* ============================================
   SCROLL REVEAL DIRECTIONS
   ============================================ */

.reveal-up {
    transform: translateY(60px);
}

.reveal-down {
    transform: translateY(-60px);
}

.reveal-left {
    transform: translateX(60px);
}

.reveal-right {
    transform: translateX(-60px);
}

.reveal-scale {
    transform: scale(0.8);
}

.reveal-up.animated,
.reveal-down.animated,
.reveal-left.animated,
.reveal-right.animated,
.reveal-scale.animated {
    transform: translateY(0) translateX(0) scale(1);
}

/* ============================================
   SPECIAL EFFECTS
   ============================================ */

/* Glitch Effect */
.glitch {
    position: relative;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch::before {
    left: 2px;
    text-shadow: -2px 0 var(--color-primary);
    clip: rect(44px, 450px, 56px, 0);
    animation: glitch-anim 5s infinite linear alternate-reverse;
}

.glitch::after {
    left: -2px;
    text-shadow: -2px 0 var(--color-primary-light);
    clip: rect(44px, 450px, 56px, 0);
    animation: glitch-anim2 5s infinite linear alternate-reverse;
}

@keyframes glitch-anim {
    0% { clip: rect(31px, 9999px, 94px, 0); }
    20% { clip: rect(68px, 9999px, 5px, 0); }
    40% { clip: rect(15px, 9999px, 73px, 0); }
    60% { clip: rect(85px, 9999px, 36px, 0); }
    80% { clip: rect(6px, 9999px, 52px, 0); }
    100% { clip: rect(42px, 9999px, 17px, 0); }
}

@keyframes glitch-anim2 {
    0% { clip: rect(65px, 9999px, 100px, 0); }
    20% { clip: rect(20px, 9999px, 78px, 0); }
    40% { clip: rect(48px, 9999px, 27px, 0); }
    60% { clip: rect(3px, 9999px, 91px, 0); }
    80% { clip: rect(72px, 9999px, 15px, 0); }
    100% { clip: rect(55px, 9999px, 42px, 0); }
}

/* ============================================
   TRANSITIONS
   ============================================ */

.smooth-transition {
    transition: all 0.5s ease;
}

/* Hover lift effect */
.lift-on-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.lift-on-hover:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* Icon spin on hover */
.spin-on-hover:hover svg {
    animation: spin 1s ease;
}