/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fafafa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation Styles */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo h2 {
    color: #2c3e50;
    font-weight: 700;
    font-size: 1.5rem;
    margin-bottom: -5px;
}

.nav-logo span {
    color: #a42121;
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #3c8ce7;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #3c8ce7;
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 20px;
    background: linear-gradient(135deg, #1637ce 0%, #fff429 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

/* Floating Symbols Animation */
.floating-symbols {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.symbol {
    position: absolute;
    font-size: 2rem;
    color: rgba(255, 255, 255, 0.1);
    animation: floatRotate 20s infinite linear;
}

.symbol-1 {
    top: 10%;
    left: 5%;
    animation-delay: 0s;
    font-size: 1.8rem;
}

.symbol-2 {
    top: 20%;
    right: 10%;
    animation-delay: -2s;
    font-size: 2.2rem;
}

.symbol-3 {
    top: 60%;
    left: 8%;
    animation-delay: -4s;
    font-size: 1.5rem;
}

.symbol-4 {
    top: 15%;
    left: 25%;
    animation-delay: -6s;
    font-size: 2rem;
}

.symbol-5 {
    top: 70%;
    right: 15%;
    animation-delay: -8s;
    font-size: 3rem;
    font-family: 'Times New Roman', serif;
    font-weight: bold;
}

.symbol-6 {
    top: 40%;
    left: 15%;
    animation-delay: -10s;
    font-size: 2.5rem;
}

.symbol-7 {
    top: 80%;
    left: 30%;
    animation-delay: -12s;
    font-size: 1.8rem;
}

.symbol-8 {
    top: 25%;
    right: 25%;
    animation-delay: -14s;
    font-size: 2.8rem;
    font-family: 'Microsoft YaHei', sans-serif;
}

.symbol-9 {
    top: 45%;
    right: 5%;
    animation-delay: -16s;
    font-size: 2rem;
}

.symbol-10 {
    top: 85%;
    right: 30%;
    animation-delay: -18s;
    font-size: 1.6rem;
}

.symbol-11 {
    top: 35%;
    left: 35%;
    animation-delay: -3s;
    font-size: 2.8rem;
    font-family: 'Courier New', monospace;
    font-weight: bold;
}

.symbol-12 {
    top: 55%;
    right: 35%;
    animation-delay: -7s;
    font-size: 2.1rem;
}

.symbol-13 {
    top: 75%;
    left: 60%;
    animation-delay: -11s;
    font-size: 2.5rem;
    font-family: 'Microsoft YaHei', sans-serif;
}

.symbol-14 {
    top: 30%;
    left: 50%;
    animation-delay: -15s;
    font-size: 2.3rem;
}

.symbol-15 {
    top: 65%;
    left: 45%;
    animation-delay: -5s;
    font-size: 1.9rem;
}

@keyframes floatRotate {
    0% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.1;
    }
    25% {
        opacity: 0.3;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 0.1;
    }
    75% {
        opacity: 0.2;
    }
    100% {
        transform: translateY(0px) rotate(360deg);
        opacity: 0.1;
    }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon fill="rgba(255,255,255,0.05)" points="0,0 1000,300 1000,1000 0,700"/></svg>');
    pointer-events: none;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.highlight {
    color: #f0b913;
    position: relative;
}

.hero-subtitle {
    font-size: 1.4rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background-color: #e74c3c;
    color: white;
}

.btn-primary:hover {
    background-color: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(231, 76, 60, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background-color: white;
    color: #333;
    transform: translateY(-2px);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.blog-icon {
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.blog-icon i {
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.8);
}

/* Section Styles */
section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #7f8c8d;
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    background-color: white;
}

.about-content {
    display: flex;
    justify-content: center;
    align-items: start;
}

.about-text h3 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin-bottom: 1.5rem;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: #555;
    line-height: 1.8;
}

.skills {
    margin-top: 2rem;
}

.skills h4 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 1rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    background-color: #2c3e50;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
}

.about-stats {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
}

.stat-item {
    margin-bottom: 2rem;
}

.stat-item:last-child {
    margin-bottom: 0;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #dce73c;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #7f8c8d;
    font-weight: 500;
}

/* Photos Section */
.photos {
    background-color: white;
    padding: 5rem 0;
}

.photos-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.photo-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    background-color: #f8f9fa;
}

.photo-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.photo-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.photo-item:hover img {
    transform: scale(1.1);
}

.photo-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 2rem 1.5rem 1.5rem;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.photo-item:hover .photo-overlay {
    transform: translateY(0);
}

.photo-overlay h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.photo-overlay p {
    font-size: 0.9rem;
    opacity: 0.9;
    margin: 0;
}

/* Video Section */
.video {
    background-color: #f8f9fa;
    padding: 5rem 0;
}

.video-content {
    max-width: 1200px;
    margin: 0 auto;
}

.main-video {
    margin-bottom: 4rem;
    background-color: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-info {
    padding: 2rem;
}

.video-info h3 {
    color: #2c3e50;
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.video-info p {
    color: #555;
    line-height: 1.6;
    font-size: 1.1rem;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.video-item {
    background-color: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.video-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.video-thumbnail {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
}

.video-thumbnail iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-details {
    padding: 1.5rem;
}

.video-details h4 {
    color: #2c3e50;
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    line-height: 1.4;
}

.video-details p {
    color: #555;
    line-height: 1.5;
    font-size: 0.95rem;
}

/* Contact Section */
.contact {
    background-color: white;
}

.contact-content {
    display: flex;
    justify-content: center;
    align-items: center;
}

.contact-info h3 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin-bottom: 1.5rem;
}

.contact-info > p {
    color: #555;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background-color: #e7d63c;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
}

.contact-icon i {
    color: white;
    font-size: 1.2rem;
}

.contact-details h4 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.contact-details a {
    color: #e7cb3c;
    text-decoration: none;
    font-weight: 500;
}

.contact-details a:hover {
    text-decoration: underline;
}

.contact-form {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background-color: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #e7e73c;
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background-color: #2c3e50;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-info h3 {
    color: #ffd700;
    margin-bottom: 0.5rem;
}

.footer-info p {
    color: #bdc3c7;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #ffd700;
}

.footer-social {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background-color: #34495e;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background-color: #dee73c;
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: #bdc3c7;
    font-size: 0.9rem;
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .about-content {
        flex-direction: column;
        gap: 2rem;
    }

    .contact-content {
        flex-direction: column;
        gap: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .footer-social {
        justify-content: center;
    }

    .video-grid {
        grid-template-columns: 1fr;
    }

    .photos-gallery {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .hero-buttons {
        justify-content: center;
    }
}

@media screen and (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .photo-filters {
        flex-direction: column;
        align-items: center;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content > * {
    animation: fadeInUp 0.8s ease-out;
}

.photo-item {
    animation: fadeInUp 0.6s ease-out;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #833ce7;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #4b2bc0;
}